Split type rack structure of anti-fatigue jaw crusher

Abstract

The utility model relates to the technical field of jaw crushers, in particular to a split type rack structure of an anti-fatigue jaw crusher, which comprises a rack main body, an assembly plate, a bearing plate and a fixing frame, the outer wall of the lower end of the rack main body is in threaded connection with the bearing plate, and the outer wall of the upper end of the bearing plate is provided with sliding chutes which are distributed in parallel at equal intervals; supporting frames distributed in a rectangular array are welded to the outer wall of the assembling plate, supporting columns are welded to the outer walls of one sides of the supporting frames, movable rods are welded to the outer walls of the two sides of the supporting columns, fixing frames are connected to the two sides of the outer wall of the lower end of the bearing plate through screws, and buffering rubber pads distributed in a rectangular array are fixedly bonded to the outer walls of the fixing frames. Damage of impact force to the rack main body and the assembly plate is reduced, the metal fatigue degree of the rack main body or the assembly plate caused by circular impact generated during crushing is reduced, and the service life of the whole structure can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of jaw crusher technology, specifically to a split frame structure for a fatigue-resistant jaw crusher. Background Technology

[0002] A jaw crusher is a commonly used crushing equipment in engineering and mining applications. The core working part of a jaw crusher mainly consists of a fixed jaw plate and a movable jaw plate. Driven by an eccentric shaft driven by an electric motor, they reciprocate periodically via a belt and pulley. When the movable jaw plate rises, the angle between the toggle plate and the movable jaw gradually increases, pushing the movable jaw plate towards the fixed jaw plate. The material sandwiched between the two jaw plates is crushed through compression, bending, and splitting. When the movable jaw plate descends, the angle between the toggle plate and the movable jaw decreases, and the tie rod and spring separate the movable jaw plate from the fixed jaw plate. The crushed material is discharged from the discharge port under gravity, thus completing the crushing task in this cycle.

[0003] The frame of a jaw crusher serves as the basic support structure, used to fix and support all components such as the eccentric shaft, moving jaw, fixed jaw, and toggle plate, ensuring that each component maintains the correct relative position during operation so that the crusher can operate normally. A split frame refers to the overall disassembly of the crusher, which facilitates transportation, installation, and maintenance.

[0004] While existing split-type jaw crushers offer numerous advantages, they still suffer from several drawbacks. Their lifespan is not optimal. When the fixed and movable jaw plates work together for crushing, the fixed jaw plate is directly fixed to the inner wall of the frame. This results in the impact force generated during crushing acting directly on the frame. The cyclical impact causes fatigue in the frame's metal components, leading to cracks in weak points and ultimately affecting the frame's lifespan. Utility Model Content

[0005] To address the problems in the existing technology, this utility model provides a split frame structure for an anti-fatigue jaw crusher.

[0006] The technical solution adopted by this utility model to solve its technical problem is a split frame structure of a fatigue-resistant jaw crusher, including a frame body, an assembly plate, a load-bearing plate, and a fixing frame. The assembly plate is arranged between the frame bodies. The lower outer wall of the assembly plate is welded with equally spaced parallel bearing blocks. Assembly grooves are opened on both sides of the outer wall of the assembly plate. The inner wall of the assembly groove is screwed with a shielding block. The lower outer wall of the frame body is screwed with a load-bearing plate. The upper outer wall of the load-bearing plate is opened with equally spaced parallel sliding grooves. The outer wall of the assembly plate is welded with a rectangular array of support frames. A support column is welded to one side of the outer wall of the support frame. Movable rods are welded to both sides of the outer wall of the support column. The lower outer wall of the load-bearing plate is screwed with fixing frames. The outer wall of the fixing frames is bonded with a rectangular array of buffer rubber pads.

[0007] By adopting the above technical solutions, the main frame provides a stable foundation for the overall structure. The mounting plate facing the inner side of the main frame can be used to install and fix the jaw plate. The mounting plate can evenly distribute the force through multiple bearing blocks, improving the structural bearing capacity. At the same time, the setting of the support frame, support column and movable rod can further enhance the stability and rigidity of the overall structure, making it more resistant to deformation during long-term operation. The chute and bearing block cooperate to provide displacement distance for the mounting plate. When the mounting plate is displaced due to the impact force generated during crushing, it will carry the movable rod and limit plate to move synchronously. The impact force of the limit plate can be buffered by the buffer rubber pad, which can effectively buffer the vibration and impact force generated during the operation of the crusher, reduce the damage of the impact force to the main frame and the mounting plate, reduce the degree of metal fatigue caused by the cyclic impact generated during crushing, and improve the service life of the overall structure.

[0008] Specifically, movable grooves are provided on both sides of the inner wall of the frame body. The size of the shielding block is smaller than the inner wall size of the movable groove. The shielding block is located inside the movable groove. Sealing filler for providing sealing is bonded and fixed on both sides of the inner wall of the movable groove. The outer walls on both sides of the shielding block are in contact with the outer wall of the sealing filler.

[0009] By adopting the above technical solution, the sealing filler is made of asbestos, graphite, and polytetrafluoroethylene sheets, which can fill the gap between the movable groove and the shielding block. When the shielding block moves due to impact, it will come into contact with the sealing filler, ensuring the sealing between the assembly plate and the frame body, ensuring that the crushed material inside the frame body is discharged in a controlled manner, preventing material from entering the gap between the assembly plate and the frame body, and providing movable space for the assembly plate. The screw connection of the shielding block ensures the disassembly of the assembly plate, which facilitates the assembly of the frame body and the assembly plate, and facilitates the subsequent disassembly and maintenance of the assembly plate.

[0010] Specifically, the bearing block is slidably installed inside the slide groove, and a rectangular array of balls is rotatably installed on the lower end of the inner wall of the slide groove. The lower outer wall of the bearing block is in contact with the balls.

[0011] By adopting the above technical solution, the slide and slider restrict the movement trajectory of the bearing block relative to the load-bearing plate. The ball can convert the sliding friction between the bearing block and the slide into rolling friction, which greatly reduces the friction force, makes the relative sliding between the assembly plate and the load-bearing plate smoother, reduces wear, and the ball is distributed in a rectangular array, which can make the bearing block more uniformly stressed, avoid structural damage caused by excessive local stress, and further enhance the stability and service life of the structure.

[0012] Specifically, the upper outer wall of the load-bearing plate is bonded with dust covers that are equally spaced and parallel to each other. The dust covers are distributed on the upper end of the slide groove, and the other end of the dust covers is bonded to the outer wall of the load-bearing block.

[0013] By adopting the above technical solution, the dust cover is designed with Oxford cloth material, which can effectively block the slide groove and prevent dust, debris and other objects from entering the slide groove, avoid contamination of the ball bearings, ensure the rolling performance of the ball bearings, and thus maintain the smooth sliding and normal operation of the structure, and extend the service life of the device.

[0014] Specifically, the outer walls on both sides of the fixed frame are provided with movable holes adapted to the movable rod. The movable holes correspond to the positions of the buffer rubber pads, and the movable rod is movably installed inside the movable holes.

[0015] By adopting the above technical solution, the movable hole and movable rod provide the necessary space for relative movement between the assembly plate and the load-bearing plate, and can guide the movement of the assembly plate to ensure that the movement trajectory of the assembly plate is controlled when it is subjected to impact.

[0016] Specifically, limit plates are provided on both outer walls of the movable rod. The limit plates are distributed on both sides of the fixed frame. Connectors arranged in a circular array are installed on the outer walls of the limit plates. The limit plates are connected to the outer walls of the movable rod through the connectors. The limit plates are in contact with the outer walls of the buffer rubber pad.

[0017] By adopting the above technical solution, the limiting plate can restrict the range of motion of the movable rod within the movable hole, preventing excessive movement of the movable rod from causing structural damage, ensuring the stability and safety of the structure. Furthermore, when the assembly plate is crushed, the impact force it receives will carry the movable rod and the limiting plate to move synchronously, causing the limiting plate to squeeze against the buffer rubber pad. The buffer rubber pad can absorb and disperse the impact force, reducing the impact force on the assembly plate, reducing the damage to the frame body and assembly plate caused by the crushing, and enhancing the fatigue resistance of the structure.

[0018] The beneficial effects of this utility model are:

[0019] (1) The split frame structure of the anti-fatigue jaw crusher described in this utility model can evenly distribute the force through the multi-point bearing blocks, thereby improving the structural bearing capacity. At the same time, the setting of the support frame, support column and movable rod can further enhance the stability and rigidity of the overall structure, making it more resistant to deformation during long-term operation. The assembly plate can be disassembled and maintained, forming a split layout, which improves the maintainability of the overall structure.

[0020] (2) The split frame structure of the anti-fatigue jaw crusher described in this utility model has a buffer rubber pad that can buffer the impact force of the limiting plate, thereby effectively buffering the vibration and impact force generated during the operation of the crusher, reducing the damage of the impact force to the frame body and assembly plate, reducing the degree of metal fatigue caused by the cyclic impact generated during crushing, and improving the service life of the overall structure. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the main frame structure of this utility model;

[0023] Figure 2 This is an exploded view of the main frame structure of this utility model;

[0024] Figure 3 This is an exploded view of the load-bearing plate structure of this utility model;

[0025] Figure 4 This is an exploded view of the assembly plate structure of this utility model;

[0026] Figure 5 This is an exploded view of the movable rod structure of this utility model.

[0027] In the diagram: 1. Main frame; 11. Movable groove; 12. Sealing filler; 2. Assembly plate; 21. Assembly groove; 22. Blocking block; 23. Bearing block; 24. Support frame; 25. Support column; 26. Movable rod; 27. Limiting plate; 28. Connecting piece; 3. Load-bearing plate; 31. Slide groove; 32. Dust cover; 33. Ball bearing; 4. Fixed frame; 41. Movable hole; 42. Buffer rubber pad. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the present invention discloses a split frame structure for an anti-fatigue jaw crusher, comprising a frame body 1, an assembly plate 2, a load-bearing plate 3, and a fixing frame 4. The assembly plate 2 is disposed between the frame bodies 1. The lower outer wall of the assembly plate 2 is welded with equally spaced parallel bearing blocks 23. Assembly grooves 21 are provided on both sides of the outer wall of the assembly plate 2. A shielding block 22 is screwed to the inner wall of the assembly groove 21. The load-bearing plate 3 is screwed to the lower outer wall of the frame body 1. The upper outer wall of the load-bearing plate 3 is provided with equally spaced parallel sliding grooves 31. A rectangular array of support frames 24 is welded to the outer wall of the assembly plate 2. A support column 25 is welded to one side of the outer wall of the support frame 24. Movable rods 26 are welded to both sides of the outer wall of the support column 25. The lower outer wall of the load-bearing plate 3 is screwed to both sides of the fixing frame 4. A rectangular array of buffer rubber pads 42 are glued to the outer wall of the fixing frame 4.

[0030] During use, the main frame 1 provides a stable foundation for the overall structure. The mounting plate 2, facing the inside of the main frame 1, can be used to install and fix the jaw plate. The mounting plate 2, through the multi-point bearing blocks 23, can evenly distribute the force, improving the structural bearing capacity. At the same time, the setting of the support frame 24, support column 25, and movable rod 26 can further enhance the stability and rigidity of the overall structure, making it more resistant to deformation during long-term operation. The sliding groove 31 and the bearing block 23 cooperate to provide the mounting plate 2 with displacement distance. When the mounting plate 2 is displaced due to the impact force generated during crushing, it will carry the movable rod 26 and the limiting plate 27 to move synchronously. The buffer rubber pad 42 can buffer the impact force of the limiting plate 27, thereby effectively buffering the vibration and impact force generated during the operation of the crusher, reducing the damage of the impact force to the main frame 1 and the mounting plate 2, reducing the degree of metal fatigue caused by the cyclic impact generated during crushing, and improving the service life of the overall structure.

[0031] For sealing purposes, exemplarily, such as Figure 2 As shown, movable grooves 11 are provided on both sides of the inner wall of the frame body 1. The size of the shielding block 22 is smaller than the inner wall size of the movable groove 11. The shielding block 22 is located inside the movable groove 11. Sealing filler 12 for providing sealing is bonded and fixed on both sides of the inner wall of the movable groove 11. The outer walls on both sides of the shielding block 22 are in contact with the outer wall of the sealing filler 12.

[0032] In use, the sealing filler 12 is a sheet made of asbestos, graphite, and polytetrafluoroethylene, which can fill the gap between the movable groove 11 and the shielding block 22. When the shielding block 22 moves due to impact, it will come into contact with the sealing filler 12, ensuring the sealing between the assembly plate 2 and the frame body 1, ensuring that the crushed material inside the frame body 1 is discharged in a controlled manner, preventing material from entering the gap between the assembly plate 2 and the frame body 1, and providing the assembly plate 2 with movable space. The screw connection of the shielding block 22 ensures the disassembly of the assembly plate 2, which facilitates the assembly of the frame body 1 and the assembly plate 2, and facilitates the subsequent disassembly and maintenance of the assembly plate 2.

[0033] To support assembly plate 2, for example, such as Figure 3 As shown, the bearing block 23 is slidably installed inside the slide groove 31, and a rectangular array of balls 33 is rotatably installed on the lower end of the inner wall of the slide groove 31. The lower outer wall of the bearing block 23 is in contact with the balls 33.

[0034] During use, the slide groove 31 and the slider restrict the movement trajectory of the bearing block 23 relative to the load-bearing plate 3. The ball bearings 33 can convert the sliding friction between the bearing block 23 and the slide groove 31 into rolling friction, which greatly reduces the friction force, making the relative sliding between the assembly plate 2 and the load-bearing plate 3 smoother and reducing wear. In addition, the ball bearings 33 are distributed in a rectangular array, which can make the bearing block 23 more evenly stressed, avoid structural damage caused by excessive local stress, and further enhance the stability and service life of the structure.

[0035] For dust prevention, for example, such as Figure 3 As shown, dust covers 32 are equidistantly and parallelly distributed on the upper outer wall of the load-bearing plate 3. The dust covers 32 are distributed on the upper end of the slide groove 31, and the other end of the dust covers 32 is bonded to the outer wall of the load-bearing block 23.

[0036] When in use, the dust cover 32 is made of Oxford cloth and can cover the slide groove 31, effectively preventing dust, debris and other contaminants from entering the slide groove 31, avoiding contamination of the ball bearings 33, ensuring the rolling performance of the ball bearings 33, thereby maintaining the smooth sliding and normal operation of the structure and extending the service life of the device.

[0037] To maintain the movement trajectory, for example, such as Figure 3 As shown, the outer walls on both sides of the fixed frame 4 are provided with movable holes 41 adapted to the movable rod 26. The movable holes 41 correspond to the positions of the buffer rubber pad 42, and the movable rod 26 is movably installed inside the movable holes 41.

[0038] In use, the movable hole 41 and the movable rod 26 provide the necessary space for relative movement between the assembly plate 2 and the load-bearing plate 3, and can guide the movement of the assembly plate 2 to ensure that the movement trajectory of the assembly plate 2 is controlled when it is subjected to impact.

[0039] For buffering, exemplified, such as Figure 5 As shown, limit plates 27 are provided on both outer walls of the movable rod 26. The limit plates 27 are distributed on both sides of the fixed frame 4. Connectors 28 distributed in a circular array are installed on the outer wall of the limit plates 27. The limit plates 27 are connected to the outer wall of the movable rod 26 through the connectors 28. The limit plates 27 are in contact with the outer wall of the buffer rubber pad 42.

[0040] During use, the limiting plate 27 restricts the range of motion of the movable rod 26 within the movable hole 41, preventing excessive movement of the movable rod 26 that could cause structural damage, thus ensuring the stability and safety of the structure. Furthermore, when the assembly plate 2 is crushed, the impact force it receives will cause the movable rod 26 and the limiting plate 27 to move synchronously, thereby causing the limiting plate 27 to press against the buffer rubber pad 42. The buffer rubber pad 42 can absorb and disperse the impact force, reducing the impact force on the assembly plate 2, reducing the damage to the frame body 1 and the assembly plate 2 caused by the crushing, and enhancing the fatigue resistance of the structure.

[0041] In use, the external hoisting equipment hoists and moves the assembly plate 2 and the load-bearing plate 3 to the corresponding positions on the outside of the frame body 1, and assembles the frame body 1, the assembly plate 2 and the load-bearing plate 3.

[0042] When the jaw crusher is working, the fixed jaw plate and the movable jaw plate installed on the inner side of the frame body 1 of the assembly plate 2 cooperate to crush the material. At this time, the assembly plate 2 will be subjected to the impact force generated during crushing. Since the assembly plate 2 is connected to the load-bearing plate 3 through the multi-point bearing blocks 23, the force can be evenly distributed, improving the structural bearing capacity. At the same time, the setting of the support frame 24, support column 25 and movable rod 26 further enhances the stability and rigidity of the overall structure.

[0043] When the assembly plate 2 is subjected to impact, it will be displaced. The bearing block 23 slides in the groove 31. The ball 33 converts the sliding friction between the bearing block 23 and the groove 31 into rolling friction. When the assembly plate 2 is displaced, it will carry the movable rod 26 and the limiting plate 27 to move synchronously. The movable rod 26 moves in the movable hole 41. The limiting plate 27 and the buffer rubber pad 42 are squeezed against each other. The buffer rubber pad 42 absorbs and disperses the impact force.

[0044] During the movement of the assembly plate 2, the sealing filler 12 in the movable groove 11 is always in contact with the shielding block 22 to ensure the sealing between the assembly plate 2 and the frame body 1.

[0045] It should be noted that this utility model is a split frame structure for a fatigue-resistant jaw crusher. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A split-frame structure for a fatigue-resistant jaw crusher, characterized in that, The assembly includes a frame body (1), an assembly plate (2), a load-bearing plate (3), and a fixing frame (4). The assembly plate (2) is arranged between the frame bodies (1). The lower outer wall of the assembly plate (2) is welded with equally spaced parallel load-bearing blocks (23). Assembly slots (21) are opened on both sides of the outer wall of the assembly plate (2). The inner wall of the assembly slot (21) is screwed with a shielding block (22). The lower outer wall of the frame body (1) is screwed with a load-bearing plate (3). (3) The upper outer wall is provided with parallel sliding grooves (31) at equal intervals. The outer wall of the assembly plate (2) is welded with a support frame (24) arranged in a rectangular array. The outer wall of the support frame (24) is welded with a support column (25) on one side. The outer walls of the support column (25) are welded with movable rods (26) on both sides. The lower outer wall of the load-bearing plate (3) is screwed with a fixing frame (4) on both sides. The outer wall of the fixing frame (4) is glued with a buffer rubber pad (42) arranged in a rectangular array.

2. The split-frame structure of the fatigue-resistant jaw crusher according to claim 1, characterized in that, The frame body (1) has movable grooves (11) on both sides of its inner wall. The size of the shielding block (22) is smaller than the inner wall size of the movable groove (11). The shielding block (22) is located inside the movable groove (11). Sealing filler (12) for providing sealing is bonded and fixed on both sides of the inner wall of the movable groove (11). The outer walls on both sides of the shielding block (22) are in contact with the outer wall of the sealing filler (12).

3. The split-frame structure of the fatigue-resistant jaw crusher according to claim 1, characterized in that, The bearing block (23) is slidably installed inside the slide groove (31). A rectangular array of balls (33) is rotatably installed on the lower end of the inner wall of the slide groove (31). The lower outer wall of the bearing block (23) is in contact with the balls (33).

4. The split-frame structure of the fatigue-resistant jaw crusher according to claim 1, characterized in that, The upper outer wall of the load-bearing plate (3) is bonded with dust covers (32) that are equally spaced and parallel. The dust covers (32) are distributed on the upper end of the slide groove (31), and the other end of the dust covers (32) is bonded to the outer wall of the load-bearing block (23).

5. The split-frame structure of the fatigue-resistant jaw crusher according to claim 1, characterized in that, The outer walls on both sides of the fixed frame (4) are provided with movable holes (41) adapted to the movable rod (26). The movable holes (41) correspond to the positions of the buffer rubber pad (42). The movable rod (26) is movably installed inside the movable holes (41).

6. The split-frame structure of the fatigue-resistant jaw crusher according to claim 1, characterized in that, Limiting plates (27) are provided on both sides of the outer wall of the movable rod (26). The limiting plates (27) are distributed on both sides of the fixed frame (4). Connecting parts (28) are installed on the outer wall of the limiting plate (27) in a circular array. The limiting plate (27) is connected to the outer wall of the movable rod (26) through the connecting parts (28). The limiting plate (27) is in contact with the outer wall of the buffer rubber pad (42).

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