A crusher liner processing device

Abstract

This invention discloses a crusher liner processing device, belonging to the field of liner processing technology; it includes a worktable with a through groove, in which an installation disc is rotatably connected; a drive structure for driving the installation disc to rotate is provided on the worktable; a cavity is provided at the center of the installation disc, and a support shaft is coaxially provided at the bottom of the cavity; a hydraulic cylinder for driving a ring sleeve to move is provided at the bottom of the cavity; a ring sleeve is slidably coaxially connected to the support shaft, and several support members are provided around the ring sleeve; an adjusting seat is coaxially threaded to the ring sleeve, and an installation ring is rotatably coaxially connected around the adjusting seat; connecting rods are hinged around the installation ring; a grinding component is provided on the worktable; the purpose is to solve the problem that existing liner processing devices have poor versatility and cannot meet the processing requirements of multi-size liners.

Description

Technical Field

[0001] This invention belongs to the field of liner processing technology, and specifically relates to a crusher liner processing device. Background Technology

[0002] Cone crushers, as core crushing equipment in industries such as mining, metallurgy, and building materials, rely on their fixed cone liners (jaw walls) and moving cone liners (crushing walls) as key wear-resistant components that directly withstand material impact and grinding. Their processing quality directly determines the crusher's performance and service life. Currently, liners are mainly made of wear-resistant materials such as high-manganese steel and high-chromium cast iron through precision casting. However, the cast blanks inevitably have problems such as residual gating gates, burrs, surface oxide scale, dimensional deviations, and local casting defects, making them unsuitable for direct installation. Subsequent grinding and finishing are necessary to ensure the cone surface dimensional accuracy, surface roughness, and mating surface fit, ensuring the assembly quality of the liner and the crusher body and preventing stress concentration, abnormal wear, or even premature fracture failure due to poor fit. However, existing liner processing devices generally suffer from poor versatility; a single tooling set often only accommodates a few liner specifications, making it difficult to meet the processing requirements of multiple liner sizes. Summary of the Invention

[0003] In view of this, the present invention discloses a crusher liner processing device, the purpose of which is to solve the problem that the existing liner processing devices have poor versatility and are difficult to meet the processing requirements of multiple sizes of liners.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A crusher liner processing device includes a worktable with a through groove. A mounting plate is rotatably connected to the through groove. A drive structure for rotating the mounting plate is provided on the worktable. A cavity is located at the center of the mounting plate. A support shaft is coaxially mounted at the bottom of the cavity. A hydraulic cylinder for moving an annular sleeve is located inside the bottom of the cavity. An annular sleeve is slidably coaxially connected to the support shaft. Several support members are provided around the annular sleeve. An adjusting seat is threaded coaxially onto the annular sleeve. A mounting ring is rotatably coaxially connected around the adjusting seat. Connecting rods are hinged to the circumference of each mounting ring. Support members are hinged to the ends of the connecting rods, with the hinge points located in the middle of the support members. Several connecting members are provided at the bottom of the annular sleeve, and these connecting members are hinged to the bottom of corresponding support members. Several receiving grooves facing the support shaft are provided on the mounting plate, and these receiving grooves communicate with the cavity. A grinding component is provided on the worktable.

[0006] In this solution, the liner is placed on the worktable with the support shaft coaxial with the liner and the smaller diameter end of the liner facing downwards. A support structure similar to an umbrella frame is formed by using mounting rings, connecting rods, and support components. This structure can either be opened outwards to support the outer arc surface of the liner, at which point the grinding component can be used to grind the inner arc surface of the liner; or it can be folded up and inserted into the liner to tighten the inner arc surface of the liner, at which point the grinding component can be used to grind the outer arc surface of the liner. This satisfies the two positioning requirements of the liner without the need to change tooling.

[0007] Furthermore, the connecting member includes an adjusting rod hinged to the bottom of the annular sleeve, the end of which is hinged to the bottom of the corresponding support member; a positioning seat is coaxially threaded onto the annular sleeve, and the positioning seat is located below the adjusting seat; a connecting ring is coaxially rotatably connected to the periphery of the positioning seat; a pull rod is hinged between the periphery of the connecting ring and the adjusting rod; a plurality of guide rods are provided at the bottom of the cavity, and the guide rods all pass upward through the connecting ring and the mounting ring and are slidably connected to the connecting ring and the mounting ring.

[0008] In this design, rotating the positioning seat moves the connecting ring up and down. Pulling the adjusting rod with a tie rod significantly alters the radial distance between the bottom of the support and the annular sleeve. Combined with the synchronous folding of the central connecting rod, the support can retract to its maximum extent towards the support shaft, easily passing through the inner hole of the liner. After folding, the support, along with the annular sleeve and other structures, descends as a whole under the drive of a hydraulic cylinder, completely submerging into the cavity at the center of the mounting plate. Without moving or lifting the liner, it can pass through the inner hole of the liner by lifting and lowering, moving between the outer and inner sides of the liner. This allows for switching between inner and outer modes without moving the liner, enabling continuous machining of the inner and outer curved surfaces of the liner in a single clamping operation, avoiding positioning errors caused by secondary clamping. Throughout the process, the connecting rod and tie rod remain in the same plane of motion, without twisting or jamming, ensuring smooth adjustment and reliable positioning.

[0009] Furthermore, each of the support members has a coaxially formed sliding groove at its top end, and each sliding groove has a number of evenly distributed positioning grooves coaxially formed on its inner wall. Each sliding groove has a sliding groove on both sides of its inner wall, and the sliding grooves extend through all the sliding grooves. A fixed rod is slidably connected within each sliding groove, and the fixed rod is rotatable relative to the support member. Several positioning blocks that are slidably connected to the sliding grooves are fixed on both sides of the fixed rod, and the thickness of the positioning blocks is equal to the width of the positioning grooves. The fixed rod is rotatably connected to a horizontally perpendicular mounting shaft to the support member. Clamping blocks are fixed on the side walls at both ends of the mounting shaft, and a locking pin for locking the mounting shaft is provided on the fixed rod.

[0010] In this design, when the support is in contact with the liner, rotating the fixing rod aligns the positioning block with the sliding groove, allowing the fixing rod to extend and retract freely, adjusting the extension length according to the liner height. Once in position, rotating the fixing rod causes the positioning block to engage with the corresponding positioning groove, reliably locking the axial position. At this point, removing the locking pin and rotating the mounting shaft causes the clamping block to swing, aligning its working surface with the upper surface of the liner. Inserting the locking pin locks the angle, adapting to liners with different tapers and end face shapes, ensuring good contact of the clamping surface and uniform clamping force. The clamping block applies downward constraint to the liner, effectively preventing longitudinal movement or being lifted by the grinding components during grinding, resulting in more stable and reliable positioning.

[0011] Furthermore, the grinding component includes a base horizontally slidably connected to a worktable, a horizontal hydraulic cylinder for driving the base is provided on the worktable; a bracket is vertically provided on the base, a mounting seat is vertically slidably connected to the bracket, a vertical hydraulic cylinder for driving the mounting seat to slide is provided on the base, a connecting shaft is hinged to the side wall of the mounting seat, a positioning structure for limiting the swing of the connecting shaft is provided on the mounting seat, a support sleeve is coaxially slidably and rotatably connected to the end of the connecting shaft, a locking structure is provided between the connecting shaft and the support sleeve; a guide rail is coaxially fixed to the end of the support sleeve, a slide block is slidably connected to the guide rail, a power structure for driving its sliding is provided on the slide block, a grinding motor is fixed on the slide block, and a grinding wheel is provided on the output end of the grinding motor.

[0012] In this design, a horizontal hydraulic cylinder drives the base to move laterally, while a vertical hydraulic cylinder drives the mounting base to rise and fall vertically along the support, allowing for flexible adjustment of the radial position and height of the grinding wheel. The slide moves along the guide rail, precisely controlling the grinding amount and adapting to different liner specifications. Simultaneously, when grinding the inner arc surface of the liner, the guide rail is positioned inside the liner, ensuring the grinding wheel faces the inner arc surface. When grinding the outer arc surface, the guide rail is positioned outside the liner, and rotating the support sleeve synchronously rotates the guide rail and grinding motor, grinding the outer arc surface of the liner. By adjusting the positions of the base and mounting base and rotating the support sleeve, grinding requirements for different sizes and surfaces can be met, offering strong versatility and convenient switching.

[0013] Furthermore, the locking structure includes two sets of symmetrically opened limiting grooves on both sides of the connecting shaft, and the limiting grooves are perpendicular to the connecting shaft. The supporting sleeve can be detachably connected to positioning pins that cooperate with the limiting grooves on both sides.

[0014] Furthermore, the positioning structure includes a support plate fixed to the bottom of the mounting base, and an adjustable telescopic cylinder is provided between the bottom of the support plate and the connecting shaft.

[0015] Furthermore, rubber pads are provided on both sides of the support member.

[0016] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0017] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0021] Figure 4 This is a schematic diagram of the structure in the working state in an embodiment of the present invention.

[0022] The following components are labeled in the attached diagram: 1. Workbench; 2. Mounting plate; 3. Support shaft; 4. Annular sleeve; 5. Drive hydraulic cylinder; 6. Support component; 7. Adjusting seat; 8. Mounting ring; 9. Connecting rod; 10. Receiving groove; 11. Adjusting rod; 12. Positioning seat; 13. Connecting ring; 14. Pull rod; 15. Guide rod; 16. Positioning groove; 17. Fixing rod; 18. Positioning block; 19. Mounting shaft; 20. Pressing block; 21. Locking pin; 22. Base; 23. Horizontal hydraulic cylinder; 24. Vertical hydraulic cylinder; 25. Bracket; 26. Mounting seat; 27. Connecting shaft; 28. Support sleeve; 29. ​​Guide rail; 30. Slide seat; 31. Grinding motor; 32. Grinding wheel; 33. Positioning pin; 34. Support plate; 35. Adjustable telescopic cylinder; 36. Liner plate; 37. Limiting groove. Detailed Implementation

[0023] like Figures 1-4 As shown:

[0024] A crusher liner processing device includes a worktable 1 with a through groove. A mounting disc 2 is rotatably connected within the through groove. A drive structure for rotating the mounting disc 2 is provided on the worktable 1. A cavity is located at the center of the mounting disc 2. A support shaft 3 is coaxially mounted at the bottom of the cavity. A hydraulic cylinder 5 for moving an annular sleeve 4 is located within the bottom of the cavity. The annular sleeve 4 is slidably coaxially connected to the support shaft 3. Several support members 6 are provided around the annular sleeve 4. An adjusting seat 7 is coaxially threaded onto the annular sleeve 4. An mounting ring 8 is coaxially rotatably connected to the circumference of the adjusting seat 7. A connecting rod 9 is hinged to the circumference of the mounting ring 8. A support member 6 is hinged to the end of each connecting rod 9, and the hinge point is located in the middle of the support member 6. Several connecting members are provided at the bottom of the annular sleeve 4, and the connecting members are hinged to the bottom of the corresponding support member 6. Several receiving grooves 10 facing the support shaft 3 are provided on the mounting plate 2, and the receiving grooves 10 communicate with the cavity. A grinding component is provided on the worktable 1.

[0025] In this scheme, the liner 36 is placed on the mounting plate 2, and the support shaft 3 is coaxial with the liner 36. The end of the liner 36 with the smaller diameter faces downward, and the diameter of the cavity is smaller than the opening diameter of the liner 36.

[0026] When grinding is required on the inner arc surface of the liner plate 36: the driving hydraulic cylinder 5 controls the annular sleeve 4 and the support member 6 to move down into the concave cavity, and the adjusting seat 7 is rotated to make the support member 6 open outward to a suitable angle, forming a conical support surface that is larger at the top and smaller at the bottom. The driving hydraulic cylinder 5 controls the annular sleeve 4 and the support member 6 to move up, so that the outer conical surface of the liner plate 36 sits on the inner working surface of the support member 6, forming support for the outer arc surface of the liner plate 36. Then, the grinding component grinds the inner arc surface of the liner plate 36.

[0027] When grinding is required on the outer arc surface of the liner plate 36: the annular sleeve 4 and the support member 6 are moved down into the concave cavity by driving the hydraulic cylinder 5, and the adjusting seat 7 is rotated in the opposite direction to make the support member 6 fold into a near vertical state with the minimum radial dimension; the annular sleeve 4 and the support member 6 are moved up by driving the hydraulic cylinder 5 to move the support member 6 into the liner plate 36, and the adjusting seat 7 is rotated to make the support member 6 open outward until the outer working surface of the support member 6 tightly supports the inner conical surface of the liner plate 36, realizing internal tension and positioning, and then the outer arc surface of the liner plate 36 is ground by the grinding component.

[0028] The mounting ring 8, connecting rod 9, and support member 6 form a support structure similar to an umbrella frame. It can either open outward to support the outer arc surface of the liner 36, at which time the grinding component can be used to grind the inner arc surface of the liner 36; or it can be folded up and inserted into the liner 36 to tighten the inner arc surface of the liner 36 outward, at which time the grinding component can be used to grind the outer arc surface of the liner 36. This satisfies the two positioning requirements of the liner 36 without the need to change tooling.

[0029] Furthermore, the connecting member includes an adjusting rod 11 hinged to the bottom of the annular sleeve 4, the end of the adjusting rod 11 being hinged to the bottom of the corresponding support member 6; a positioning seat 12 is coaxially threaded onto the annular sleeve 4, and the positioning seat 12 is located below the adjusting seat 7; a connecting ring 13 is coaxially rotatably connected to the periphery of the positioning seat 12, and a pull rod 14 is hinged between the periphery of the connecting ring 13 and the adjusting rod 11; a plurality of guide rods 15 are provided at the bottom of the cavity, and the guide rods 15 all pass upward through the connecting ring 13 and the mounting ring 8 and are slidably connected to the connecting ring 13 and the mounting ring 8.

[0030] In this scheme, by rotating the positioning seat 12, the connecting ring 13 is moved up and down. By pulling the adjusting rod 11 through the pull rod 14, the radial distance between the bottom of the support member 6 and the annular sleeve 4 can be greatly changed. With the synchronous folding of the middle connecting rod 9, the support member 6 can be folded up to the support shaft 3 as much as possible, and can easily pass through the inner hole of the liner plate 36. After folding, the support member 6, together with the annular sleeve 4 and other structures, can be lowered as a whole with the annular sleeve 4 under the drive of the hydraulic cylinder, and completely submerged in the concave cavity in the center of the mounting plate 2. Without moving or lifting the liner plate 36, it can pass through the inner hole of the liner plate 36 by lifting and lowering, and move between the outer and inner sides of the liner plate 36. This realizes the switching between the inner and outer modes of the liner plate 36 without moving the liner plate 36, and realizes the continuous processing of the inner and outer arc surfaces of the liner plate 36 in one clamping, avoiding the positioning error caused by the secondary clamping.

[0031] Furthermore, the middle and bottom of the support member 6 are independently driven by the connecting rod 9 and the adjusting rod 11, respectively, allowing for independent adjustment of the radial positions of the upper and lower ends. This ensures precise matching of the working surfaces of the liners 36 with different tapers, guaranteeing a close and comfortable surface contact, resulting in good support rigidity and high positioning accuracy. Simultaneously, the guide rod 15 passes through the connecting ring 13 and the mounting ring 8, restricting their circumferential rotation and ensuring that the connecting rod 9 and the pull rod 14 remain in the same plane of motion during thread adjustment, preventing torsion and jamming, ensuring smooth adjustment and reliable positioning.

[0032] Furthermore, each of the support members 6 has a coaxially formed sliding groove at its top end, and each sliding groove has a plurality of evenly distributed positioning grooves 16 coaxially formed on its inner wall. Sliding grooves are formed on both sides of each sliding groove, and the sliding grooves penetrate all the sliding grooves. A fixed rod 17 is slidably connected within each sliding groove, and the fixed rod 17 is rotatable relative to the support member 6. A plurality of positioning blocks 18 are fixed on both sides of the fixed rod 17 and slidably connected to the sliding grooves. The thickness of the positioning blocks 18 is equal to the width of the positioning grooves 16. The fixed rod 17 is rotatably connected to a horizontally perpendicular mounting shaft 19 to the support member 6. A clamping block 20 is fixed on each of the two side walls of the mounting shaft 19, and a locking pin 21 for locking the mounting shaft 19 is provided on the fixed rod 17.

[0033] In this design, when the support 6 is in contact with the liner 36, rotating the fixing rod 17 aligns the positioning block 18 with the sliding groove, allowing the fixing rod 17 to extend and retract freely, adjusting the extension length according to the height of the liner 36. Once in position, rotating the fixing rod 17 causes the positioning block 18 to engage with the corresponding positioning groove 16, reliably locking the axial position. At this point, the locking pin 21 is pulled out, and rotating the mounting shaft 19 causes the clamping block 20 to swing, aligning its working surface with the upper end face of the liner 36. Inserting the locking pin 21 locks the angle, adapting to liners 36 with different tapers and end face shapes, ensuring good contact of the clamping surface and uniform clamping force. The clamping block 20 applies downward constraint to the liner 36, effectively preventing the liner 36 from shifting longitudinally or being lifted by the grinding components during grinding, resulting in more stable and reliable positioning.

[0034] Furthermore, the grinding component includes a base 22 horizontally slidably connected to a worktable 1, and a horizontal hydraulic cylinder 23 for driving the base 22 is provided on the worktable 1; a bracket 25 is vertically provided on the base 22, and a mounting seat 26 is vertically slidably connected to the bracket 25; a vertical hydraulic cylinder 24 for driving the mounting seat 26 to slide is provided on the base 22; a connecting shaft 27 is hinged to the side wall of the mounting seat 26; and a positioning structure for limiting the swing of the connecting shaft 27 is provided on the mounting seat 26. The connecting shaft 27 is coaxially and rotatably connected to a support sleeve 28 at its end, and a locking structure is provided between the connecting shaft 27 and the support sleeve 28; a guide rail 29 is coaxially fixed at the end of the support sleeve 28, and a slide block 30 is slidably connected on the guide rail 29; the slide block 30 is provided with a power structure to drive its sliding (in this embodiment, a motor drive is used, which is a conventional technology, so it is not shown in the figure); a grinding motor 31 is fixed on the slide block 30, and a grinding wheel 32 is provided on the output end of the grinding motor 31.

[0035] In this design, the horizontal hydraulic cylinder 23 drives the base 22 to move laterally, and the vertical hydraulic cylinder 24 drives the mounting base 26 to rise and fall vertically along the bracket 25, allowing for flexible adjustment of the radial position and height of the grinding wheel 32. The slide 30 feeds along the guide rail 29, precisely controlling the grinding amount and adapting to different specifications of the liner 36. Simultaneously, when grinding the inner arc surface of the liner 36, the guide rail 29 is positioned inside the liner 36, ensuring the grinding wheel 32 faces the inner arc surface. When grinding the outer arc surface of the liner 36, the guide rail 29 is positioned outside the liner 36, and the rotating support sleeve 28 causes the guide rail 29 and the grinding motor 31 to rotate synchronously, grinding the outer arc surface of the liner 36 with the grinding wheel 32. By adjusting the positions of the base 22 and mounting base 26 in conjunction with the angular rotation of the support sleeve 28, grinding requirements for different sizes and surfaces can be met, offering strong versatility and convenient switching.

[0036] Furthermore, the locking structure includes two sets of symmetrically opened limiting grooves 37 on both sides of the connecting shaft 27, and the limiting grooves 37 are perpendicular to the connecting shaft 27. The supporting sleeve 28 has detachable positioning pins 33 that cooperate with the limiting grooves 37 on both sides.

[0037] When using this solution, pulling out the positioning pin 33 allows the support sleeve 28 to rotate around the connecting shaft 27, causing the guide rail 29 and the grinding wheel 32 to flip. When one set of limiting grooves 37 aligns with the positioning pin 33, inserting the positioning pin 33 locks the circumferential position of the support sleeve 28. The two sets of limiting grooves 37 correspond to the two working positions of the grinding wheel 32, one facing inward (grinding the inner arc surface) and the other facing outward (grinding the outer arc surface). After rotating to the correct position, the grooves automatically align and position, ensuring convenient operation and accurate positioning.

[0038] Furthermore, the positioning structure includes a support plate 34 fixed to the bottom of the mounting base 26, and an adjustable telescopic cylinder 35 is provided between the bottom of the support plate 34 and the connecting shaft 27.

[0039] The deflection of the connecting shaft 27 can be controlled by adjusting the extension and retraction of the telescopic cylinder 35, which has both driving and positioning functions. No additional locking device is required, and the structure is simple and easy to adjust.

[0040] Furthermore, rubber pads are provided on both sides of the support member 6.

[0041] By setting a rubber pad layer, the friction between the support 6 and the liner 36 is increased, preventing the liner 36 from slipping.

[0042] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A crusher liner processing device, characterized in that: The device includes a worktable with a through groove in which a mounting plate is rotatably connected. A drive structure for rotating the mounting plate is also provided on the worktable. A cavity is located at the center of the mounting plate, with a support shaft coaxially mounted at the bottom of the cavity. A hydraulic cylinder for moving an annular sleeve is located within the bottom of the cavity. An annular sleeve is slidably coaxially connected to the support shaft, and an adjusting seat is threadedly connected to the annular sleeve. A mounting ring is rotatably coaxially connected to the periphery of the adjusting seat. Connecting rods are hinged to the periphery of each mounting ring, and support members are hinged to the ends of the connecting rods, with the hinge points located in the middle of the support members. Several connecting members are located at the bottom of the annular sleeve, and these connecting members are hinged to the bottom of corresponding support members. The mounting plate has several receiving grooves facing the support shaft, which communicate with the cavity. A grinding component is also provided on the worktable.

2. The crusher liner processing device according to claim 1, characterized in that: The connector includes an adjusting rod hinged to the bottom of the annular sleeve, the end of which is hinged to the bottom of the corresponding support; a positioning seat is coaxially threaded onto the annular sleeve, and the positioning seat is located below the adjusting seat; a connecting ring is coaxially rotatably connected to the periphery of the positioning seat; a pull rod is hinged between the periphery of the connecting ring and the adjusting rod; a plurality of guide rods are provided at the bottom of the cavity, and the guide rods all pass upward through the connecting ring and the mounting ring and are slidably connected to the connecting ring and the mounting ring.

3. The crusher liner processing device according to claim 2, characterized in that: Each support member has a coaxially formed sliding groove at its top end. The inner wall of each sliding groove has several evenly distributed positioning grooves. Sliding grooves are formed on both sides of the inner wall of each sliding groove, and these sliding grooves extend through all the sliding grooves. A fixed rod is slidably connected within each sliding groove, and the fixed rod is rotatable relative to the support member. Several positioning blocks that slidably connect to the sliding grooves are fixed on both sides of the fixed rod. The thickness of each positioning block is equal to the width of the positioning groove. The fixed rod is rotatably connected to a horizontally perpendicular mounting shaft to the support member. Clamping blocks are fixed to the side walls at both ends of the mounting shaft, and locking pins for locking the mounting shaft are provided on the fixed rod.

4. The crusher liner processing device according to claim 3, characterized in that: The grinding component includes a base horizontally slidably connected to a worktable, a horizontal hydraulic cylinder for driving the base on the worktable; a support is vertically mounted on the base, a mounting seat is vertically slidably connected to the support, a vertical hydraulic cylinder for driving the mounting seat to slide is mounted on the base, a connecting shaft is hinged to the side wall of the mounting seat, a positioning structure for limiting the swing of the connecting shaft is provided on the mounting seat, a support sleeve is coaxially slidably and rotatably connected to the end of the connecting shaft, a locking structure is provided between the connecting shaft and the support sleeve; a guide rail is coaxially fixed to the end of the support sleeve, a slide block is slidably connected to the guide rail, a power structure for driving its sliding is provided on the slide block, a grinding motor is fixed on the slide block, and a grinding wheel is provided on the output end of the grinding motor.

5. The crusher liner processing device according to claim 4, characterized in that: The locking structure includes two sets of symmetrically opened limiting grooves on both sides of the connecting shaft, and the limiting grooves are perpendicular to the connecting shaft. The supporting sleeve can be detachably connected to positioning pins that cooperate with the limiting grooves on both sides.

6. The crusher liner processing device according to claim 5, characterized in that: The positioning structure includes a support plate fixed to the bottom of the mounting base, and an adjustable telescopic cylinder is provided between the bottom of the support plate and the connecting shaft.

7. A crusher liner processing device according to claim 6, characterized in that: Rubber pads are provided on both sides of the support member.

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