Jaw crusher has become the most widely used and widely used crushing equipment in China due to its simple structure, low price, simple operation, durability and easy maintenance.
China's simple pendulum type jaw crusher (a series, about 5 kinds of specifications) is generally large and medium-sized equipment, so only a few large factories can be manufactured, such as Shenyang Heavy Metallurgical Machinery Manufacturing Co., Ltd. (hereinafter referred to as heavy, former Shenyang heavy duty) machine factory), China first heavy Industries Group Corporation (hereinafter referred to as a heavy, former first heavy machinery plant), Kim Shenyang metallurgical Machinery Co., Ltd. (hereinafter referred to as Shen Ye, former Shenyang Nonferrous metallurgical Machinery plant), CITIC heavy Machinery company ( Hereinafter referred to as Zhongzhong, former Luoyang Mining Machinery Factory), Hengyang Nonferrous Metallurgical Machinery General Factory (hereinafter referred to as Hengye). This kind of crusher can crush ore and rock of various hardnesses. It is mainly used for coarse crushing of large and medium-sized mines. It is rarely used in other industrial sectors such as building materials, chemicals, cement, etc., so it is not widely used and has less output.
China's production of compound pendulum jaw crusher (a series, has developed to about 20 kinds of specifications) mostly for small and medium-sized equipment, general machinery factory can produce, can be widely used in metallurgy, mining, building materials, chemicals, road construction Broken operations in other industries. This crusher is suitable for coarse and medium crushing operations of various ores, rocks and other materials with a compressive strength of 250 MPa or less.
With the development of science and technology, the compound pendulum jaw crusher has also been developed to a large scale. For example, a heavy-duty PEF1200 × 1500 and PEF 1500×2100 jaw crusher can be produced, and about 10 large specifications of PEF600×900 type or above. The crusher can crush ore and rock of various hardnesses, and many manufacturers have been able to manufacture them.
Since 1980, in order to meet the needs of various industries for fine crushing operations, China has successfully developed and produced a compound pendulum type crusher jaw crusher, which has now formed a relatively complete series, and many manufacturers produce it. This fine crushing equipment is mainly used for fine crushing of ore and rock with a compressive strength not exceeding 250 MPa. Henan Qunying Machinery Manufacturing Co., Ltd. (hereinafter referred to as Qunying, former Henan Jiaozuo Qunying Machinery Factory) developed the impact type jaw crusher, Shenyang Golden College developed a double-action jaw crusher, and Central South University of Technology developed a swing. Crusher. In recent years, the North Mine Institute has developed PA low-profile wear-resistant external moving shovel and PD-type large crushing wear-resistant external moving jaw crusher.
According to statistics, the largest output of China's compound pendulum jaw crusher is PE250×400 (total production of more than 13,000 units in 1984); followed by PE400×600 type and PE150×250 type; the production is to build road and bridge machinery in Shanghai. Equipment Co., Ltd. (hereinafter referred to as Shangjian, former Shanghai Construction Machinery Factory) has the largest number, and by 1984, it has produced 7,544 units. According to incomplete statistics, during the period 1949-1984, China produced a total of about 30,000 jaw crushers, of which only about 1,000 were simply placed.
At present, the model specifications of the jaw crusher are mainly expressed in the following ways, such as PEX150×750: P——crusher, E——颚, X——fine (coarse not marked), 150——feeding port Width (mm), 750 - length of feed opening (mm); PJ900 × 1200: P - crusher, J - simple pendulum (颚), 900 - feed port width (mm), 1200 - Feed port length (mm). Another way of representation is PEFX0207: P - crusher, E - 颚, F - complex pendulum, X - fine crush (coarse not marked), 02 - feed opening width 250mm, 07 - give The length of the material port is 750mm; PEJ0609: P——crusher, E——颚-type, J——simplified pendulum, 06——feeding port width 600mm, 09 feeding port length 900mm.
The following is a description of the jaw crushers produced by our major manufacturers and Sandvik Rock Treatment Company (hereinafter referred to as Sandvik) and their technical performance, equipment shape and installation dimensions.
1. Construction The factory is the largest manufacturer of jaw crushers in China. Its products are not only sold all over the country, but also exported to foreign countries. At present, the plant mainly produces Shanbao brand PE and PEX jaw crushers. The main technical performance and equipment dimensions of the PE type jaw crusher and the PEX type fine crusher jaw crusher are shown in Figure 1 and Table 1.
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2. Yizhong The factory mainly produces large-scale simple pendulum jaw crushers and compound pendulum jaw crushers. In the simple pendulum type, the direct drive PEJZ jaw crusher is also produced, which is characterized by simplifying the transmission system and reducing the power consumption of the motor. The compound swing jaw crusher produced by the plant has a feed port specification (width × length) of 1200mm × 1500mm and 1500mm × 2100mm. The jaw crusher produced by the plant and its technical performance and parameters are listed in Table 2. [next]
3. Medium weight The jaw crusher produced by this mine has various specifications. The technical performance of various jaw crushers produced by the plant are listed in Table 3, PE150×250, PE250×400, PE400×600, PEX 100×600, PEX150×600, PEX150×500, PEX150×750 and PEX250×750. The installation foundation of the jaw crusher is shown in Figure 2. The installation foundation of the PEX250×1000 and PEX250×1200 jaw crushers is shown in Figure 3. The installation base of the PE600×900 jaw crusher is shown in Figure 4. The compound pendulum jaw crusher The installation base dimensions are listed in Table 4. The installation foundation of the simple pendulum jaw crusher is shown in Figure 5. The installation base dimensions are listed in Table 5.
[next] [next] [next] 4.Zhejiang Mining Machinery Co., Ltd. (hereinafter referred to as Zhejiang Mine, former Yiwu Mining Machinery Factory). The factory produces compound pendulum type ordinary and fine crushed miners. Its structure is reasonable, especially the advanced crushing cavity shape (Fig. 6), improved device performance. The technical performance of the jaw crusher produced by the plant is shown in Table 6. The installation dimensions of some of the equipment are shown in Figure 7 and Table 7.
[next] 5. Chaoyang Heavy Machinery Plant (hereinafter referred to as Chaozhong) The factory produces PE and PEX type compound pendulum jaw crushers. The technical performance is listed in Table 8. The equipment dimensions are shown in Figure 8 and Table 9.
[next] The plant has developed a PEY hydraulic jaw crusher, available in two sizes. The new perform better than ordinary crusher jaw crusher for breaking strength of various minerals, rocks, and other materials in the slag 300MPa or less, can be used in mineral processing plants and quarries, slag cement can also be used The steel slag is coarsely crushed or finely pulverized with steel mills. The new crusher is equipped with a hydraulic overload protection device that safely and reliably discharges non-crushed materials entering the machine without stopping the machine. The hydraulic electric control device can automatically control the normal operation under the set working pressure, and the pressure will be automatically compensated when the pressure is reduced. When the pressure limit is exceeded, the alarm can be automatically detected. The machine is also more efficient than the PE jaw crusher. The technical performance of the PEY hydraulic jaw crusher is shown in Table 10. The structure of the equipment, the shape and the basic installation dimensions are shown in Figure 9.
[next] 6. Shandong Shan Mine Machinery Co., Ltd. (hereinafter referred to as Shan Mine, former Jining Mining Machinery Factory) has developed from small and medium-sized jaw crusher to an important manufacturer of large, medium and small jaw crushers, with large production and sales volume. At present, it mainly produces Shengyuan Building type PE jaw crusher and PEX type crusher jaw crusher. The main technical parameters of the PE type jaw crusher are listed in Table 11, the equipment dimensions and installation dimensions are shown in Figure 10, and the installation base is shown in Figure 11 and Table 13. The main technical parameters of the PEX type fine crusher jaw crusher are listed in Table 12, and the device outline and installation dimensions of the two specifications are shown in Figs.
[next] [next] 7. Qunying This factory is one of the main production plants of jaw crusher in China. The PE type and PEX type jaw crusher produced by the factory are listed in Table 14. The shape and installation dimensions of the equipment are shown in Figure 14-18. . In the figure, the right-loading method is used. If the left-hand mounting is required, it is only necessary to modify the pulley to the left side, and the foundation map is modified accordingly, and it is required to be ordered. These drawings are for reference only when designing the foundation.
[next] [next] [next] At the same time, the plant also produces PEC320×240 impact jaw crusher. The structure and dimensions of the machine are shown in Figure 19, and the installation base dimensions are shown in Figure 20. The working principle is that the eccentric shaft drives the beam and the moving rod to reciprocate through the connecting rods on both sides of the machine. The machine is characterized by large inclination angle and stroke of the movable jaw and the fixed jaw. The annular safety spring can be adjusted to a certain pre-pressure. When the large non-crushed material passes, it can be repelled to protect the machine. The material is fed into the crushing chamber through the feeding port, and is subjected to the impact of the moving jaw and the fixed lining. The closer the inclination angle of the moving surface is to the discharge opening, the faster the material can be discharged downwards; the stroke of the moving jaw is several times larger than that of the conventional jaw crusher, and the material is suspended when the moving jaw is far away from the fixed jaw. State, and impact on the material near the fixed enthalpy, and the material obtains a sub-speed that moves toward the discharge opening. Therefore, the material can be dispersed, the clogging phenomenon can be reduced, the production capacity can be increased, the crushing ratio can be increased, and the power consumption and the wear of the lining plate can be reduced. The fixed raft is also inclined, and the closer the angle between the ridge and the moving cymbal is, the smaller the venting is near the discharge opening, so that the clogging of the material near the discharge opening can be reduced, and the worn portion of the lining can be dispersed over a larger area. Up, thereby extending the life of the liner. The impact type jaw crusher can be used to crush various ores and rocks, as well as coal , coke and other materials, and after one crushing, the effect of ordinary two crushing can be achieved, and the crushed products are mostly cuboidal and less in shape.
[next] 8. Shenye The PEF type compound pendulum jaw crusher with larger production specifications is listed in Table 15. The shape and installation dimensions are shown in Figure 21 and Table 16. The drive of this crusher is divided into right drive and left drive, but the installation dimensions are the same. The simple pendulum jaw crusher produced by the plant and its technical performance are listed in Table 17.
[next] 9. Jiangxi Mining Machinery Factory (hereinafter referred to as Jiang Mine) The PE type jaw crusher and PEX type fine crushed jaw crusher produced by the plant and their technical performance are listed in Table 18. The dimensions of the equipment are shown in Figure 22 and Table 19. The mounting base dimensions of the PE and PEX jaw crushers are shown in Figure 23 and Table 20, respectively.
[next] [next] 10. Nanning Heavy Machinery Factory (hereinafter referred to as Nanzhong, former Nanning Metallurgical Mining Machinery Factory) produces PE type jaw crusher and a fine crushed jaw crusher (Table 21). Although the specifications are few, they are the most commonly used. Therefore, production and sales are still relatively large. The outline and installation base dimensions of the PE250×400 and PE400×600 jaw crushers are shown in Fig. 24 and Table 22. The outline and installation foundation dimensions of the PE600×900 jaw crusher are shown in Fig. 25.
[next] 11. Shandong Zhaoyuan Gold Machinery General Factory (hereinafter referred to as Zhaoyuan Huangji General Factory) The factory produces three types of PE and PEX jaw crushers. The technical performance is listed in Table 23. Since 1990, the factory has produced a more advanced JC type deep cavity crusher. There are currently three specifications, and its technical performance is shown in Table 24.
12. Hong Kong Huayang Machinery Co., Ltd. (hereinafter referred to as Huayang Machinery) The company was established in the early 1980s and currently has a number of wholly-owned or joint venture companies in the country, mainly producing mining equipment and heavy equipment. The PEF type double pendulum jaw crusher produced by the company is widely used in metallurgy, mining, building materials, chemical industry, cement and other industries due to its simple structure, reliable performance, convenient operation and maintenance, and safe use. It is suitable for various ores and rocks with coarse and medium crushing compressive strength below 250MPa. Among them, three kinds of crushers of PEF0609 and above can also crush all kinds of hard ores and rocks. PEF-X fine crushing compound pendulum crusher is suitable for crushing ore and rock below 160MPa.
working principle. The motor power is driven by the V-belt drive pulley to drive the eccentric shaft to rotate, so that the movable sway is complicatedly oscillated (the moving eccentric shaft, the eccentric shaft, the bracket and the frame constitute the crank rocker mechanism), when the movable jaw is close to the fixed raft, the material It is crushed by impact, extrusion, bending, and when the movable jaw leaves the fixed jaw, the material is discharged from the discharge port by its own weight.
The technical parameters of the PEF type compound pendulum jaw crusher are shown in Table 25. The external dimensions and the installation base dimensions are shown in Figure 26.
[next] C series compound pendulum jaw crusher. The C series compound pendulum jaw crusher produced by the company is a new type of crusher with optimized design, optimized structure, reliable performance, large crushing ratio, uniform product size, operation, maintenance and safety. It is widely used. Metallurgy, mining, building materials, chemicals, cement and other industries. Suitable for coarse and medium crushing of various ores and rocks. The technical parameters are shown in Table 26.
The features of this series of crushers are:
(1) The structure and performance of the whole series of crusher were optimized by computer, and the main components such as moving jaw and frame were analyzed by finite element method to achieve the best performance.
(2) The machine adopts international advanced technology such as zero suspension, small angle and deep crushing cavity, and the production capacity is increased by 20%~30% compared with the traditional same type of compound pendulum jaw crusher.
(3) The front plate of the optimized compound pendulum jaw crusher is designed to be inclined forward by an angle, so that the crushing chamber is deepened, the number of times the material is broken is increased, the stroke of the moving part is increased, the discharging is smooth, and the crushing ability is obtained. improve.
(4) This series of crushers not only has the characteristics of high output, long life of tooth plate and uniform particle size, but also easy to assemble and disassemble when replacing bearings, saving labor and labor, and saving a lot of maintenance time and cost for the manufacturer. [next]
Model Meaning Example GX6×30: C Always toothed liner, X-fine, 6-feed width 6 inches, 30-feed length 30 inches.
13. North Mine Institute·Beijing Huanuowei Technology Development Co., Ltd. (hereinafter referred to as North Mine Institute·Huanov) Beijing Huanuowei Technology Development Co., Ltd. is a high-tech enterprise affiliated to the North Mine Institute, dedicated to the development and manufacture of new broken Screening equipment and environmental protection equipment.
The super wear-resistant external jaw crusher series developed by the company belongs to a new generation of high-efficiency, energy-saving and low-wear crushing equipment. This product has fundamentally changed the traditional double-wound jaw crusher with four links for more than 100 years. The connecting rod in the mechanism is used as a traditional design of the moving jaw, and the movement of the eccentric shaft is transmitted to the outer moving jaw through the side plate. The new design structure improves the kinematics and dynamics of the equipment, which improves the performance of the equipment. This equipment is the core equipment of the national scientific research project, and has formed two series of PA low and PD large crushing ratio. Since the first set of PA750 × 1060 units in 1995 and successfully applied in Jinchuan Nonferrous Metals Company Longshou Mine, welcomed by users, is now widely used in mining, railways, roads, water, building materials, coal and environmental protection and other fields jaw And export to foreign countries at the same time.
PA low series super wear-resistant external jaw jaw crusher is a widely used medium crushing and coarse crushing equipment, especially suitable for underground and mobile crushing units and other space-constrained occasions. Its characteristics are as follows: low profile The feeding height is 25%-30% lower than that of the traditional model, which saves installation space and reduces the construction amount of the diverticulum; the long life of the lining: the moving trajectory is ideal, the component of the wear direction is small, and the lining wear Significantly reduced, the life expectancy is increased by at least 3-5 times; compared with the traditional compound pendulum jaw crusher of the same specification, a larger crushing stroke can be obtained with a smaller eccentricity, and the spindle speed is high; equipment energy saving: single machine energy saving 15 %-30%, the system energy saving is more than double; the discharge port adjustment range is large, and the crushing ratio varies greatly, which can meet the needs of different users.
PD large crushing ratio series super wear-resistant external moving jaw crusher is a widely used coarse, medium and fine crushing equipment, especially suitable for crushing hard materials and requiring large crushing ratio. The characteristics are as follows: large crushing ratio: maximum Up to 15, in some cases two-stage crushing can be used instead of the traditional three-stage crushing or one-stage crushing instead of the traditional two-stage crushing; other features are the same as the PA type jaw crusher.
The technical parameters of the two crushers are listed in Tables 27 and 28, respectively.
In addition, the North Mines also produces the following jaw crushers.
(1) PSS series double-cavity double-action jaw crusher. The traditional jaw crusher has a low efficiency and is inefficient. The jaw crusher developed and produced by the North Mine Institute adopts advanced negative support, small eccentricity and high swing frequency technology, and has a double-chamber double-acting structure. Compared with the traditional jaw crusher, the obvious features are: 1 the same specification model of the machine, the production capacity can be increased by more than 80%; under the same production capacity, the specification model can be reduced by one grade; 2 under the same production capacity, the product The particle size can be reduced by more than 30%; 3 the power consumption per unit can be reduced by more than 30%; the service life of the 4-tooth plate can be increased by 2-3 times. Structural features: double cavity, double action 颚; low power consumption, high output; negative support, zero suspension; deep cavity curved cavity; small size, easy maintenance.
Double-cavity double-action jaw crusher can be widely used in metallurgical mines, cement building materials, glass ceramics, medical and health, etc. It is the medium-hard material crushing, especially the crushing workshop, quarrying yard and cement plant crushing workshop of the concentrator. More efficient and less energy-efficient equipment. The technical parameters are shown in Table 29. [next]
(2) GXPE2540 second generation negative support jaw crusher. The crusher developed and produced by the North Mining Institute has comprehensively improved on the basis of manufacturing and applying dozens of first-generation products in five years, achieving higher performance, more reasonable structure and lower manufacturing cost. Its main features are: negative support structure, large crushing force, large stroke at the lower part of the moving raft, which is beneficial to improve the crushing efficiency and crushing ratio, and reduce the product granularity; the crushing cavity is deeper, which is beneficial to increase the crushing ratio and reduce the product granularity; Higher, it is beneficial to improve the processing capacity and reduce the product granularity; the discharge opening can be adjusted to a smaller size, which is beneficial to reduce the product size; optimize the designed crushing cavity shape, improve the crushing efficiency, reduce the wear of the liner, and extend the lining. Plate life; different applications with different surface shape of the liner, can achieve the best results; unique bearing block structure design, making processing, installation and disassembly are very easy; using higher speed motor, light weight, volume Small, low price, reducing the cost of the whole machine; the weight of the whole machine is greatly reduced compared with the first generation products.
Main technical performance:
Specification (feeding port size) 250mm × 400mm
Maximum feed size 220mm
Discharge port adjustment range (closed edge) 10~40mm
Installation power 15kW
Production capacity 5~16m 3 /h
Spindle speed 320r/min
Feeding compressive strength ≤300MPa
Dimensions (length x width x height) 1.25m × 1.23m × 1.30m
Machine weight (excluding motor) 2.41t[next]
(3) PES4060 deep cavity jaw crusher. This new optimized design of the positive support, positive suspension, deep cavity jaw crusher is developed and produced by the North Mine Institute, with domestic advanced level. Main advantages: deep crushing cavity, large crushing ratio, easy material biting; dynamic type is box structure, high strength, can break high-strength materials; adopt new curved cavity type, high crushing efficiency, long life; different The application is equipped with lining plates with different surface shapes; the frame welding structure is firm; the discharge opening is small, the discharge opening adjustment mechanism is easy to operate; the motor speed is high, the quality is small, the price is low, the equipment runs smoothly; the large pulley and the flywheel The second is one, which reduces the manufacturing cost and facilitates the installation and maintenance; the spindle has high speed, large production capacity and fine grain size.
Main technical performance:
Specification (feeding port size) 400mm×600mm
Maximum feed size 350mm
Production capacity 6~33m 3 /h
Installation power 30 (37) kW
Discharge port adjustment range (closed edge) 25 -100mm
Spindle speed 300r/min
Feeding compressive strength ≤350MPa
Dimensions (length x width x height) 2.2m × 1.7m × 1.9m
Machine quality (without motor and belt cover) 6.6t
(4) PEY4060 hydraulic insurance jaw crusher. This is a new type of jaw crusher with hydraulic cylinder overload protection device, positive support, positive suspension and deep crushing cavity. The structure has been fully optimized. Developed and produced by the North Mine Institute. Its main features are: hydraulic insurance replaces the function of the toggle plate to break the insurance, the reaction is quick, the protection effect is good, and it can work continuously under frequent overload; the dynamic frame is a solid box structure with high strength and can crush hard materials. The deeper crushing chamber is beneficial to increase the crushing ratio and reduce the particle size of the crushed product. The optimized design of the crushing cavity type is beneficial to improve the crushing efficiency and reduce the granularity of the crushed product; the flywheel and the large pulley are combined into one, simplifying the structure. Convenient installation and maintenance, reducing manufacturing costs; using a higher speed motor to improve the stability of operation; discharge opening can be adjusted to a smaller size to obtain a finer product size.
Due to the above characteristics, the crushing efficiency of the device is relatively high, and the product has a fine particle size, and can be used for crushing higher strength materials, and is particularly suitable for materials containing more drifting metals such as metallurgical slag.
Main technical performance:
Specification (feeding port size) 400mm×600mm
Maximum feed size 340mm
Production capacity 5~28m 3 /h
Discharge port adjustment range 25~100mm
Spindle speed (swing frequency) 260r/min
Motor power 30 (37) kW
Dimensions (length x width x height) 3.5m × 1.7m × 1.9m
Machine quality (excluding motor and belt cover) 8.0t
14. Kunming Jinshan Machinery Manufacturing Co., Ltd. (hereinafter referred to as Kunming Jinshan, former Dongchuan Mining Bureau Machinery General Factory). The jaw crusher produced by the company is suitable for ore and rock in metallurgical mines and construction, roads and railways. It is coarsely crushed, mediumly crushed and finely divided. The crushing ratio is large and the particle size is uniform. The company's crushers are particularly suitable for use in small mines and quarries. The technical parameters are shown in Table 30.
[next] 15. Luoyang Dahua Heavy Machinery Co., Ltd. (hereinafter referred to as Dahua Heavy Machinery) has four types of jaw crushers and more specifications. It is suitable for metallurgy, mining, building materials and other industries with crushing compressive strength less than 320MPa. Among them, PEY series hydraulic protection jaw crusher has hydraulic protection function, which effectively solves the problem of “kale steel†in crushed materials, and is suitable for the crushing of metallurgical slag such as steel slag. PJQ series strong crusher can crush materials such as iron alloy. The technical parameters are shown in Table 31.
16. Sandvik The company's new generation of JAWMASTER jaw crushers benefit from a wealth of experience and extensive use of computer simulation and CAD design. Compared with the old generation jaw crusher, it has the advantages of high strength, light weight, high output and low cost.
This new generation jaw crusher is a single elbow compound pendulum jaw crusher and is the simplest type of jaw crusher. The frame of the machine body consists of steel plate welded on both sides, front-end cast steel fixed and rear adjustment box. The fixed shape is a box-shaped casting structure, and the inside of the box body is provided with reinforcing ribs, and the two sides of the adjusting box have long connecting flanges with the side plates. The large arc design of the transition zone reduces stress concentration while the weld is placed in the low stress zone. The moving jaw is also a box-shaped casting structure. The inside of the box is provided with reinforcing ribs and has a high rigidity-to-weight ratio. It is supported by a forged large shaft suspension and moves in a well-lubricated spherical roller bearing. The four roller bearings of the crusher are greased and the labyrinth seal is filled with lubricating oil, which effectively prevents dust from entering. There are oil nozzles for lubrication, and large crushers are also available with electric automatic lubrication system. The crusher brackets are cylindrically engaged and oil-free, requiring no maintenance. The jaws are fixed and locked by replaceable blocks and tie rods. The back pad thin steel jaws, these components contribute to absorb the deformation generated due to the expansion of manganese steel, thereby protecting the body frame and the movable jaw crusher. These components can be easily replaced at the job site, eliminating the need for expensive return-to-factory repairs, thereby reducing the total cost of the life cycle. [next]
Most JAWMASTER series crushers have an almost square feed port, so there is no jam when the largest block of material enters. The top of the turret is fitted with a replaceable thick slab to protect the turret from the impact of the feed. There is no need to install a baffle plate above the feed port, and the bulk material entering the crusher can fall directly into the active area of ​​the crushing chamber. Compared to conventional jaw crushers, the JAWMASTER jaw crusher has a more efficient feed port (Figure 27).
A variety of seesaws are available. The symmetrical crushing cavity design allows the same jaw to be interchanged whether it is moving or fixed. The standard fascia (z-type) is a flat corrugated surface with symmetrical upper and lower ends, which means it can be used for both moving and fixed, and can be flipped over. Some materials require the use of special types of jaws. Most types of crushers are available in a variety of types, such as NC (non-packing type), Z (symmetric grid type), CC (coarse type), WW (wide corrugated type), etc. (Fig. 28).
[next] The four factors of crusher production, crushing ratio, wear and feed size are closely related to the JAWMASTER crusher which gives these four factors a good balance. The deep cavity and symmetrical crushing chamber design maximizes the feed size, throughput and crushing ratio of the crusher.
The geometric design of the toggle mechanism combined with the operating speed of the crusher allows the crusher to achieve maximum yield and low wear of the jaws. The ideal angle of crushing ensures that the material moves smoothly through the crushing chamber, maximizing the crushing ratio.
The technical parameters and dimensions of the HD jaw crusher are shown in Table 32 and Figure 33, and the production capacity is shown in Table 34.
17. The technical parameters and production capacity of PED type (symmetric cavity) jaw crusher produced by other manufacturers' jaw crusher Nanchang Mining Machinery Co., Ltd. (hereinafter referred to as South Mine, former Nanchang Mining Machinery Factory) are shown in Table 34. , 35. In addition, there are many domestic manufacturers producing small and medium-sized PEF and PEX jaw crushers, such as Shenyang Cement Machinery Co., Ltd. (hereinafter referred to as Shenji, former Shenyang Cement Machinery Factory) and Shenyang Mining Machinery Group Corporation (hereinafter referred to as Shen Mine). Heavy, Beijing People's Mining Machinery Factory (hereinafter referred to as People's Mining Machinery), Sichuan Mining Machinery Factory (hereinafter referred to as Sichuan Mine), Hunan Ningxiang Xinghuo Machinery Factory (hereinafter referred to as Ningxiang Xinghuo Machinery), Hebei Wanquan Mining Machinery Factory (hereinafter referred to as Wanquan) Machinery), Zhengzhou Mining Machinery Factory (hereinafter referred to as Zheng Mine, former Henan Rongyang Mining Machinery Factory), Baotou Metallurgical Mining Machinery Factory (hereinafter referred to as Baotou), Henan Gongyi Hongguang Construction Machinery Factory (hereinafter referred to as Hongguang Machinery) , Nanzhong, Guilin Metallurgical Machinery Factory (hereinafter referred to as Guilin Metallurgy). [next]
18. Shenyang Golden Academy Shenyang Gold College developed a double-acting crusher in the late 1980s. It uses double-acting particles, negative dip, deep crushing cavity, variable angle, low suspension, high speed, and comprehensive adjustment. The advanced technical measures such as overload protection and various new linings have formed a series of products after several years of development and improvement. The gold mining plant in Liaoning, Shandong, Gansu and other provinces first adopted the double-action collar crusher. After testing and more than three years of production practice, it proved that the machine has large production capacity, low energy consumption per unit of output and long service life of the liner. The crushing ratio is large, and a section of crushing can be used instead of two sections of closed circuit crushing to simplify the crushing process.
The main mechanism of the double-action jaw crusher (Fig. 30) is two articulated four-bar linkages in the form of a negative dip structure (β angle), and the mechanism parameters are determined by an optimal design. The negative dip angle complex pendulum jaw crushing motorized hoe has a large effective crushing stroke and strong crushing ability; the vertical stroke is small, which reduces the wear and energy consumption; the vertical speed of the feed port working stroke is downward, which is beneficial to the material being bitten into, the crushing ratio Big. After replacing the fixed raft with the moving raft, the longitudinal relative displacement between the rafts is zero, and the crushing impact energy is multiplied, and the impact force of the two moving rafts is balanced on the material, which improves the crushing effect. The deep crushing cavity of the biting angle is beneficial to the discharge and increases the number of times the material is impacted in the crushing chamber. The shape of the liner designed according to the change of material size further reduces the energy consumption of crushing. In order to make the whole machine reliable, comprehensive adjustable overload protection measures have been taken, and the lubrication and sealing of each sports pair have been improved.
The technical performance of the double-action jaw crusher is shown in Table 36. In addition, its variety specifications are being further expanded.
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