Eccentric bushing machining tool for mine crusher

Abstract

The eccentric bushing machining tool for the mine crusher comprises a containing sleeve, a fixing base and a gland, a containing inner hole corresponding to an eccentric bushing body in shape is formed in the containing sleeve and penetrates through the two ends of the containing sleeve, the fixing base is connected to one end of the containing sleeve, and the gland is connected to the other end of the containing sleeve. The eccentric sleeve body is inserted into the containing inner hole, the connecting ring abuts against the fixing base, the gland is arranged at the end, located on the outer side of the containing sleeve, of the eccentric sleeve body, and the gland is detachably connected with the fixing base through a connecting piece. The eccentric bushing machining device has the effect of improving the machining precision of the eccentric bushing.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of eccentric sleeve machining, in particular to an eccentric sleeve machining tool for a mine crusher. BACKGROUND

[0002] The eccentric sleeve is a core component in a multi-cylinder cone crusher, and is made of special material and bears alternating bending moment and torsional moment. The outer circle of the eccentric sleeve intersects with the center line of the inner hole and has a certain radial eccentricity, so that the machining of the two cannot be completed at one time. The eccentric sleeve machining is an extremely important part in the mine crusher, and the machining precision directly affects the normal use of the crusher. After the external shape of the eccentric sleeve is machined, a mechanical milling device is usually used to accurately mill the internal structure of the eccentric sleeve to improve the machining precision.

[0003] REFERENCE Figure 1 The eccentric sleeve comprises an eccentric sleeve body 011 and a mounting ring, the mounting ring is arranged on the outer ring wall of one end of the eccentric sleeve body 011, and an eccentric inner hole 013 is arranged in the eccentric sleeve body 011. The outer peripheral wall of the eccentric sleeve body 011 is provided with a mounting ring groove 014 along the circumferential direction, the outer peripheral wall of the eccentric sleeve body 011 is provided with a mounting vertical groove 015 along the length direction thereof, and the bottom end of the eccentric sleeve body 011 is provided with a mounting bottom groove 016.

[0004] According to the related technology in the above, the inventors consider that if only a part of the eccentric sleeve is clamped by the clamping tool in the machining process, the placing sleeve is prone to shaking in the subsequent milling process of the eccentric inner hole, so that the machining precision of the eccentric sleeve is reduced. SUMMARY

[0005] In order to improve the machining precision of the eccentric sleeve, the application provides an eccentric sleeve machining tool for a mine crusher.

[0006] The eccentric sleeve machining tool for the mine crusher provided by the application adopts the following technical scheme: an eccentric sleeve machining tool for a mine crusher, comprising a placing sleeve, a fixing seat and a gland, a placing inner hole corresponding to the shape of the eccentric sleeve body is formed in the inside of the placing sleeve, the placing inner hole penetrates through both ends of the placing sleeve, the fixing seat is connected to one end of the placing sleeve, the eccentric sleeve body is inserted into the placing inner hole, the connecting ring abuts against the fixing seat, the gland is arranged at one end of the eccentric sleeve body located outside the placing sleeve, and the gland is detachably connected with the fixing seat through a connecting piece.

[0007] By adopting the technical scheme, the eccentric sleeve body is placed in the placement inner hole of the placement sleeve before machining, the gland is abutted against one end of the eccentric sleeve body, and the connection between the gland and the fixing seat is realized by using the connecting piece, so that the eccentric sleeve body is stably fixed, and the possibility of shaking of the eccentric sleeve body in the machining process is reduced. Through the cooperation of the placement sleeve, the fixing seat and the gland, the eccentric sleeve body is fixed, and the machining precision of the eccentric sleeve is improved.

[0008] Optionally, the connecting piece includes connecting blocks, connecting screws, a rotating handle, rotating sprockets and a rotating chain. The connecting blocks are connected to the edges of the gland. Each connecting block is rotatably connected with a connecting screw. The connecting screws are arranged in parallel. Each connecting screw is rotatably connected with a rotating sprocket. The rotating chain is jointly sleeved outside the rotating sprockets. The rotating handle is connected with one of the connecting screws. The top surface of the fixing seat is provided with a plurality of connecting screw holes. The connecting screw holes are arranged in one-to-one correspondence with the connecting screws.

[0009] By adopting the technical scheme, when the gland is connected, the connecting screws and the connecting screw holes are arranged in one-to-one correspondence. The rotating handle is rotated. The connecting screws are synchronously rotated under the driving of the rotating sprockets and the rotating chain. The connecting screws and the fixing seat are quickly connected.

[0010] Optionally, the placement sleeve is provided with an extrusion ring cavity. The top surface of the fixing seat is provided with a plurality of extrusion through holes. The extrusion through holes are in communication with the extrusion ring cavity. The bottom surface of each connecting block is connected with an extrusion rod. The extrusion rods are arranged in parallel with the connecting screws. The extrusion rods are arranged in one-to-one correspondence with the extrusion through holes. An extrusion ring plate is slidably arranged in the extrusion ring cavity. A limiting assembly is arranged on the placement sleeve. The limiting assembly includes an extrusion liquid bag, a ring-shaped liquid bag and a first communication pipe. The extrusion liquid bag is ring-shaped. The extrusion liquid bag is arranged in the extrusion ring cavity. The extrusion liquid bag is arranged on the side of the extrusion ring plate away from the extrusion rod. A placement ring groove is formed in the inner ring wall of the placement inner hole in a circumferential direction and corresponds to the installation ring groove. The ring-shaped liquid bag is arranged in the placement ring groove. The outer wall of the ring-shaped liquid bag is connected with the inner ring wall of the placement ring groove. The first communication pipe is in communication between the ring-shaped liquid bag and the extrusion liquid bag. A plurality of limiting arc blocks are connected to the inner ring wall of the ring-shaped liquid bag.

[0011] By adopting the technical scheme, the pressing rod extends into the pressing ring cavity through the extrusion hole and extrudes the pressing ring plate, and the extrusion liquid bag is reduced in volume under the extrusion of the pressing ring plate. The liquid in the extrusion liquid bag enters the annular liquid bag through the first communication pipe, the volume of the annular liquid bag is increased, the limiting arc block arranged on the annular liquid bag is embedded in the mounting ring groove on the eccentric sleeve body, the limiting of the eccentric sleeve body is realized, and the possibility of the eccentric sleeve body moving along the length direction in the placement inner hole is reduced.

[0012] Optionally, a placement vertical groove corresponding to the position of the mounting vertical groove is arranged on the inner wall of the placement inner hole, and the limiting assembly further comprises a longitudinal liquid bag, a second communication pipe and a limiting vertical block. The longitudinal liquid bag is arranged in the placement vertical groove, one side of the longitudinal liquid bag is connected with the inner wall of the placement vertical groove, the limiting vertical block is connected to the side of the longitudinal liquid bag away from the inner cavity of the placement vertical groove, and the second communication pipe is connected and communicated between the extrusion liquid bag and the longitudinal liquid bag.

[0013] By adopting the technical scheme, the extrusion ring plate moves downward, the liquid in the extrusion liquid bag enters the longitudinal liquid bag through the second communication pipe, the volume of the longitudinal liquid bag is increased, the limiting vertical block moves inward and is embedded in the mounting vertical groove of the eccentric sleeve body, the limiting of the eccentric sleeve body is realized, and the possibility of the eccentric sleeve body rotating in the placement inner hole in the machining process is reduced.

[0014] Optionally, a return spring is connected between the top surface of the extrusion ring plate and the inner top wall of the extrusion ring cavity, and the bottom surface of the extrusion ring plate is connected with the extrusion liquid bag.

[0015] By adopting the technical scheme, the return spring is arranged to realize the resetting of the extrusion ring plate, so that when the extrusion rod exits from the extrusion ring cavity, the extrusion ring plate moves upward under the action of the return spring to realize the resetting, the volume of the extrusion liquid bag is increased, and the liquid in the annular liquid bag is drawn back.

[0016] Optionally, a limiting bottom block is arranged at the bottom end of the placement sleeve, a communication hole is arranged on the limiting bottom block, the communication hole is arranged in communication with the placement inner hole, a lap edge is arranged at the bottom end of the inner annular wall of the communication hole, a fixing assembly is arranged on the limiting bottom block, the fixing assembly comprises a sliding bottom block, a jacking liquid bag and a third communication pipe, the sliding bottom block is slidingly arranged in the communication hole, the jacking liquid bag is connected to the top surface of the lap edge, the jacking liquid bag is connected with the bottom surface of the sliding bottom block, and the third communication pipe is arranged in communication between the extrusion liquid bag and the jacking liquid bag.

[0017] By adopting the technical scheme, when the gland is connected, the liquid in the extrusion liquid bag enters the jacking liquid bag through the third communication pipe, the sliding bottom block moves up under the action of the jacking liquid bag, and the top surface of the sliding bottom block stably contacts the bottom end of the eccentric sleeve body, so that stable support of the bottom end of the eccentric sleeve body is realized, and the stability of the eccentric sleeve body during machining is further improved.

[0018] Optionally, the sliding bottom block is annular, a limiting ring is connected to the inner ring wall of the lap edge, the jacking liquid bag is annular, and the jacking liquid bag is arranged between the limiting ring and the communication hole.

[0019] By adopting the technical scheme, since the sliding bottom block is annular, the waste residue generated during machining can be smoothly dropped out. The limiting ring limits and guides the sliding of the sliding bottom block.

[0020] Optionally, the top surface of the sliding bottom block is provided with a contact switch.

[0021] By adopting the technical scheme, when the contact switch on the top surface of the sliding bottom block contacts the bottom end of the eccentric sleeve body, the contact switch is pressed down, proving that the sliding bottom block stably contacts the eccentric sleeve body.

[0022] To sum up, the present application has at least one of the following beneficial technical effects: 1. The mutual cooperation of the placing sleeve, the fixing seat and the gland realizes fixation of the eccentric sleeve body, and has the effect of improving the machining precision of the eccentric sleeve; 2. The limiting assembly reduces the possibility of movement of the eccentric sleeve body in the placing hole; 3. Since the sliding bottom block is annular, the waste residue generated during machining can be smoothly dropped out. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of an eccentric sleeve for a mine crusher in the embodiment of the present application.

[0024] Figure 2 is a structural schematic view of an eccentric sleeve machining tool for a mine crusher in the embodiment of the present application.

[0025] Figure 3 is a partial sectional view of the internal structure of the placing sleeve in the embodiment of the present application.

[0026] Figure 4 is Figure 3 is an enlarged view of part A in

[0027] Figure 5 is Figure 3Enlarged view of middle B part.

[0028] Figure 6 is Figure 3 Enlarged view of middle C part.

[0029] BRIEF DESCRIPTION OF DRAWINGS: 011, eccentric sleeve body; 012, connecting ring; 013, eccentric inner hole; 014, mounting ring groove; 015, mounting vertical groove; 016, mounting bottom groove; 017, alignment ring; 1, placing sleeve; 101, placing inner hole; 102, extrusion ring cavity; 103, placing ring groove; 104, placing vertical groove; 2, gland; 3, limiting assembly; 31, limiting arc block; 32, limiting vertical block; 33, extrusion liquid bag; 34, annular liquid bag; 35, first communication pipe; 36, longitudinal liquid bag; 37, second communication pipe; 38, extrusion ring plate; 39, reset spring; 4, fixing assembly; 41, sliding bottom block; 42, embedded strip; 43, contact switch; 44, top support liquid bag; 45, third communication pipe; 46, limiting ring; 5, connecting screw; 6, rotating sprocket; 7, rotating chain; 8, rotating handle; 9, extrusion rod; 10, connecting block; 11, fixed seat; 111, connecting screw hole; 112, extrusion through hole; 113, embedded ring groove; 12, limiting bottom block; 121, communication hole; 13, lapping edge. DETAILED DESCRIPTION

[0030] The following will be described in detail in combination with the accompanying Figures 1-6 The application is further described in detail. The embodiment of the application provides an eccentric sleeve machining tool for a mine crusher, which has the effect of improving the machining precision of the eccentric sleeve.

[0031] Reference Figure 2 and Figure 3 The eccentric sleeve machining tool for a mine crusher comprises a placing sleeve 1, a gland 2, a limiting assembly 3, and a fixing assembly 4. One end of the placing sleeve 1 is provided with a fixed seat 11, the placing sleeve 1 is provided with a placing inner hole 101 penetrating through opposite ends thereof, and the shape of the placing inner hole 101 is correspondingly arranged with the eccentric sleeve body 011.

[0032] Reference Figure 2The cover 2 is arranged on one side of the placing sleeve 1 provided with the fixing seat 11, and the cover 2 is connected with the fixing seat 11 through a connecting piece. The connecting piece comprises connecting screws 5, rotating sprockets 6, rotating chains 7, rotating handles 8, extrusion rods 9 and connecting blocks 10. A plurality of connecting blocks 10 are connected on the edge of the cover 2, and one connecting screw 5 is rotatably connected on each connecting block 10, and the plurality of connecting screws 5 are arranged in parallel. One rotating sprocket 6 is arranged at the top end of each connecting screw 5, and the rotating chains 7 are jointly arranged outside the plurality of rotating sprockets 6. The rotating handle 8 is connected to the top end of one of the connecting screws 5. A plurality of connecting screw holes 111 are arranged on the top end of the fixing seat 11, and the plurality of connecting screw holes 111 are arranged in one-to-one correspondence with the plurality of connecting screws 5. One extrusion rod 9 is connected on the bottom surface of each connecting block 10, and the plurality of extrusion rods 9 are arranged in parallel with the plurality of connecting screws 5.

[0033] Referring to Figures 2-4 , the inside of the placing sleeve 1 is horizontally provided with an extrusion ring cavity 102, and the top surface of the fixing seat 11 is provided with a plurality of extrusion through holes 112 arranged in one-to-one correspondence with the plurality of extrusion rods 9, and the bottom end of the extrusion through hole 112 is in communication with the extrusion ring cavity 102. The limiting assembly 3 is arranged on the placing sleeve 1, and the limiting assembly 3 comprises a limiting arc block 31, a limiting vertical block 32, an extrusion liquid bag 33, a ring-shaped liquid bag 34, a first communication pipe 35, a longitudinal liquid bag 36, a second communication pipe 37, an extrusion ring plate 38 and a reset spring 39. The extrusion ring plate 38 is slidably arranged in the extrusion ring cavity 102, and the reset spring 39 is arranged in the extrusion ring cavity 102, one end of the reset spring 39 is connected with the inner top wall of the extrusion ring cavity 102, and the other end is connected with the top surface of the extrusion ring plate 38. The extrusion liquid bag 33 is annular, and the extrusion liquid bag 33 is arranged in the extrusion ring cavity 102, and one side of the extrusion liquid bag 33 is connected with the extrusion ring plate 38.

[0034] Referring to Figures 3-5 , the inner ring wall of the placing inner hole 101 is provided with a placing ring groove 103 along the circumference, and the inner wall of the placing inner hole 101 is provided with a placing vertical groove 104 along the length direction. When the eccentric sleeve body 011 is inserted into the placing inner hole 101, the installation vertical groove 015 corresponds in position to the placing vertical groove 104, and the installation ring groove 014 corresponds in position to the placing ring groove 103. The ring-shaped liquid bag 34 is connected in the placing ring groove 103, and the limiting arc block 31 is connected in a plurality of the inner circumferential wall of the ring-shaped liquid bag 34 along the circumference, and the first communication pipe 35 is connected in a plurality of the ring-shaped liquid bag 34 and the extrusion liquid bag 33. The longitudinal liquid bag 36 is connected in the placing vertical groove 104, the limiting vertical block 32 is connected to the inner side of the longitudinal liquid bag 36 along the length direction, and the second communication pipe 37 is connected between the extrusion liquid bag 33 and the longitudinal liquid bag 36.

[0035] Referring to Figure 3 and Figure 6The bottom end of the placing sleeve 1 is connected with a limiting bottom block 12, the limiting bottom block 12 is provided with a communication hole 121 communicated with the placing inner hole 101, and the bottom end of the inner ring wall of the placing inner hole 101 is provided with an overlapping edge 13. The fixing assembly 4 comprises a sliding bottom block 41, an embedded strip 42, a contact switch 43, a top supporting liquid bag 44, a third communication pipe 45 and a limiting ring 46. The limiting ring 46 is connected to the inner ring wall of the overlapping edge by bolts, the sliding bottom block 41 is an annular block, and the sliding bottom block 41 is slidingly arranged between the inner wall of the communication hole 121 and the outer wall of the limiting ring 46. The top supporting liquid bag 44 is connected between the overlapping edge 13 and the sliding bottom block 41, and the third communication pipe 45 is connected between the top supporting liquid bag 44 and the extrusion liquid bag 33. The embedded strip 42 is connected to the top surface of the sliding bottom block 41, and the embedded block is arranged at a position corresponding to the installation bottom groove 016. The contact switch 43 is arranged on the top surface of the embedded strip 42. The bottom surface of the connecting ring 012 is provided with a positioning ring 017, and the top surface of the fixing seat 11 is provided with an embedded ring groove 113 corresponding to the positioning ring 017.

[0036] With reference to Figure 1 , Figure 3 and Figure 4 , when the eccentric sleeve body 011 is processed, the eccentric sleeve body 011 is placed in the placing inner hole 101, and the positioning ring 017 is embedded in the embedded ring groove 113 on the top surface of the fixing seat 11. The gland 2 is placed on the top end of the eccentric sleeve body 011, and a plurality of connecting screws 5 are correspondingly connected with a plurality of connecting screw holes 111. The rotating handle 8 is rotated, the rotating handle 8 drives the rotating sprocket 6 connected thereto to rotate, the rotating sprocket 6 drives the rotating chain 7 to rotate, and the rotating chain 7 drives the remaining rotating sprockets 6 to rotate synchronously. The eccentric sleeve body 011 is pressed tightly by the connecting screw 5, at this time the extrusion rod 9 extends into the extrusion ring cavity 102 through the extrusion hole 112, and the extrusion ring plate 38 is extruded. The liquid in the extrusion liquid bag 33 flows out through the first communication pipe 35, the second communication pipe 37 and the third communication pipe 45. The annular liquid bag 34 expands in volume, and a plurality of limiting arc blocks 31 arranged on the annular gas bag are embedded in the installation ring groove 014, thereby reducing the possibility that the eccentric sleeve body 011 slides in the placing inner hole 101 during processing.

[0037] With reference to Figures 4-6 , the longitudinal liquid bag 36 expands in volume, and the limiting vertical block 32 arranged on the longitudinal liquid bag 36 is embedded in the installation vertical groove 015, thereby reducing the possibility that the eccentric sleeve body 011 rotates in the placing inner hole 101 during processing. The top supporting liquid bag 44 expands in volume, the sliding bottom block 41 rises, until the embedded strip 42 is embedded in the installation bottom groove 016 and the contact switch 43 is pressed, which proves that the sliding bottom block 41 is tightly combined with the eccentric sleeve body 011. The sliding bottom block 41 supports the bottom end of the eccentric sleeve body 011, thereby further improving the stability of the eccentric sleeve body 011 during processing.

[0038] The implementation principle of the processing tool for the eccentric sleeve of the mine crusher in the embodiment of the application is as follows: when the eccentric sleeve body 011 is processed, the eccentric sleeve body 011 is placed in the placement inner hole 101, the gland 2 is placed at the top end of the eccentric sleeve body 011, the extrusion rod 9 extends into the extrusion ring cavity 102 through the extrusion through hole 112, and the extrusion ring plate 38 is extruded.

[0039] The volume of the annular liquid bag 34 is enlarged, a plurality of limiting arc blocks 31 arranged on the annular gas bag are embedded in the installation ring groove 014, and the possibility that the eccentric sleeve body 011 slides in the placement inner hole 101 during processing is reduced. The volume of the longitudinal liquid bag 36 is enlarged, the limiting vertical block 32 arranged on the longitudinal liquid bag 36 is embedded in the installation vertical groove 015, and the possibility that the eccentric sleeve body 011 rotates in the placement inner hole 101 during processing is reduced. The volume of the top support liquid bag 44 is enlarged, the sliding bottom block 41 supports the bottom end of the eccentric sleeve body 011, and the stability of the eccentric sleeve body 011 during processing is further improved.

[0040] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so: equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A tooling for machining an eccentric sleeve in a mining crusher, characterized in that: The device includes a placement sleeve (1), a fixing seat (11), and a pressure cap (2). The placement sleeve (1) has an inner hole (101) inside that corresponds to the shape of the eccentric sleeve body (011). The inner hole (101) passes through both ends of the placement sleeve (1). The fixing seat (11) is connected to one end of the placement sleeve (1). The eccentric sleeve body (011) is inserted into the inner hole (101). The connecting ring (012) abuts against the fixing seat (11). The pressure cap (2) is located at one end of the eccentric sleeve body (011) outside the placement sleeve (1). The pressure cap (2) is detachably connected to the fixing seat (11) through a connector.

2. The eccentric sleeve machining tooling for a mining crusher according to claim 1, characterized in that: The connector includes a connecting block (10), a connecting screw (5), a rotating handle (8), a rotating sprocket (6), and a rotating chain (7). Several connecting blocks (10) are connected to the edge of the cover (2). One connecting screw (5) is rotatably connected to each connecting block (10). Several connecting screws (5) are arranged in parallel. One rotating sprocket (6) is provided at the top of each connecting screw (5). The rotating chain (7) is sleeved on the outside of several rotating sprockets (6). The rotating handle (8) is connected to one of the connecting screws (5). Several connecting screw holes (111) are opened on the top surface of the fixed base (11). Several connecting screw holes (111) are arranged in a one-to-one correspondence with several connecting screws (5).

3. The eccentric sleeve machining tooling for a mining crusher according to claim 2, characterized in that: The placement sleeve (1) has a compression ring cavity (102), and the top surface of the fixing base (11) has a plurality of compression through holes (112), which are connected to the compression ring cavity (102). Each connecting block (10) has a compression rod (9) connected to its bottom surface. The compression rod (9) is parallel to the connecting screw (5). The plurality of compression rods (9) are arranged one-to-one with the plurality of compression through holes (112). A compression ring plate (38) is slidably arranged in the compression ring cavity (102). The placement sleeve (1) is provided with a limiting component (3). The limiting component (3) includes a compression liquid bladder (33), an annular liquid bladder (34), and a first connecting tube (35). The bladder (33) is annular, and the squeeze fluid bladder (33) is disposed in the squeeze ring cavity (102). The squeeze fluid bladder (33) is disposed on the side of the squeeze ring plate (38) away from the squeeze rod (9). The inner ring wall of the placement inner hole (101) is provided with a placement ring groove (103) corresponding to the position of the mounting ring groove (014) along the circumferential direction. The annular fluid bladder (34) is disposed in the placement ring groove (103). The outer wall of the annular fluid bladder (34) is connected to the inner ring wall of the placement ring groove (103). The first connecting pipe (35) is connected between the annular fluid bladder (34) and the squeeze fluid bladder (33). A plurality of limiting arc blocks (31) are connected to the inner ring wall of the annular fluid bladder (34).

4. The eccentric sleeve machining tooling for a mining crusher according to claim 3, characterized in that: The inner wall of the placement inner hole (101) is provided with a placement vertical groove (104) corresponding to the position of the installation vertical groove (015). The limiting component (3) also includes a longitudinal liquid bladder (36), a second connecting pipe (37) and a limiting vertical block (32). The longitudinal liquid bladder (36) is disposed in the placement vertical groove (104). One side of the longitudinal liquid bladder (36) is connected to the inner wall of the placement vertical groove (104). The limiting vertical block (32) is connected to the side of the longitudinal liquid bladder (36) away from the inner cavity of the placement vertical groove (104). The second connecting pipe (37) is connected between the compression liquid bladder (33) and the longitudinal liquid bladder (36).

5. The eccentric sleeve machining tooling for a mining crusher according to claim 3, characterized in that: A return spring (39) is connected between the top surface of the extrusion ring plate (38) and the inner top wall of the extrusion ring cavity (102), and the bottom surface of the extrusion ring plate (38) is connected to the extrusion liquid bladder (33).

6. The eccentric sleeve machining tooling for a mining crusher according to claim 3, characterized in that: The bottom end of the placement sleeve (1) is provided with a limiting bottom block (12), and the limiting bottom block (12) is provided with a connecting hole (121). The connecting hole (121) is connected to the placement inner hole (101). The bottom end of the inner ring wall of the connecting hole (121) is provided with an overlapping edge (13). The limiting bottom block (12) is provided with a fixing component (4). The fixing component (4) includes a sliding bottom block (41), a top support liquid bladder (44), and a third connecting pipe (45). The sliding bottom block (41) is slidably disposed in the connecting hole (121). The top support liquid bladder (44) is connected to the top surface of the overlapping edge (13). The top support liquid bladder (44) is connected to the bottom surface of the sliding bottom block (41). The third connecting pipe (45) is connected between the squeezing liquid bladder (33) and the top support liquid bladder (44).

7. The eccentric sleeve machining tooling for a mining crusher according to claim 6, characterized in that: The sliding bottom block (41) is annular, and a limiting ring (46) is connected to the inner ring wall of the overlapping edge (13). The top support liquid bladder (44) is annular and is disposed between the limiting ring (46) and the connecting hole (121). The sliding bottom block (41) is slidably disposed between the limiting ring (46) and the inner wall of the connecting hole (121).

8. The eccentric sleeve machining tooling for a mining crusher according to claim 7, characterized in that: A contact switch (43) is provided on the top surface of the sliding base block (41).

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