Crushing mechanism

Abstract

The invention relates to a crushing mechanism which comprises a main machine frame, a cone and a main shaft which are installed on a crusher, an adjusting ring is installed on the main machine frame, an adjusting sleeve is arranged on the adjusting ring, a threaded part is arranged on the outer ring wall of the adjusting sleeve, the adjusting sleeve is in threaded fit with the adjusting ring, and the cone is arranged on the main shaft. An adjusting sleeve is arranged on the main machine frame, a crushing arc wall is arranged on the inner ring wall of the adjusting sleeve, the main shaft and the cone are both arranged in the main machine frame, the cone is installed on the main shaft, an anti-loosening piece for reducing the possibility that the adjusting sleeve is loosened by vibration is arranged on the adjusting ring, and during crushing, ore is located between the crushing arc wall and the cone. The mine crusher has the effect of improving the applicability of the mine crusher.

Description

Technical Field

[0001] This application relates to the technical field of crushers, and particularly to a crushing mechanism. Background Art

[0002] The general status of related technologies in this field: Mine crushers are key equipment in the ore processing process, and their performance directly affects production efficiency and product quality. Currently, crushers mainly control the discharge particle size by adjusting the gap between the moving cone and the fixed cone. With the diversification of ore types and the refinement of crushing processes, higher requirements are put forward for the accuracy and reliability of the crusher adjustment mechanism.

[0003] In recent years, the hydraulic adjustment system and the mechanical adjustment system are two mainstream technical routes: The hydraulic adjustment system is a structure where a hydraulic cylinder directly pushes the moving cone. Although the gap can be precisely controlled through the pressure of the hydraulic system, there is a risk of oil leakage in the hydraulic system and the cost is relatively high; The mechanical adjustment system is a structure that adjusts the screw through gear transmission. Although it has strong reliability, the thread is prone to wear after long-term use, and the gap changes spontaneously; In addition, there is also a structure that manually adjusts through a pad group, but this method has low adjustment efficiency and the accuracy depends on manual experience. The above structures all have certain defects, reducing the applicability of mine crushers. Summary of the Invention

[0004] In order to improve the applicability of mine crushers, this application provides a crushing mechanism.

[0005] The crushing mechanism provided by this application adopts the following technical solutions: A crushing mechanism includes a main frame, a cone, and a main shaft installed on a crusher. An adjustment ring is installed on the main frame. An adjustment sleeve is arranged on the adjustment ring. A threaded portion is arranged on the outer ring wall of the adjustment sleeve. The adjustment sleeve is in threaded fit with the adjustment ring. A crushing arc wall is arranged on the inner ring wall of the adjustment sleeve. Both the main shaft and the cone are arranged inside the main frame. The cone is installed on the main shaft. A loosening prevention member for restricting the movement of the adjustment sleeve is arranged on the adjustment ring. During crushing, the ore is located between the crushing arc wall and the cone.

[0006] By adopting the above technical solutions, when adjusting the crushing gap of the crusher, rotate the adjustment sleeve to adjust the gap between the crushing arc wall and the cone, and finally lock the adjustment sleeve with the loosening prevention member, realizing the adjustment of the crushing gap of the crusher. By setting the adjustment sleeve, the crushing gap of the crusher is adjusted mechanically. Compared with the prior art, it has fewer components, fewer operation steps, is easy to maintain, has low cost investment, and improves the applicability of mine crushers.

[0007] Optionally, the anti-loosening member is an anti-loosening screw ring, which is threadedly fitted on the adjusting sleeve and abuts against the adjusting ring. A number of anti-loosening bolts are passed through the anti-loosening member, and the anti-loosening bolts pass through the anti-loosening member and the adjusting ring and are threadedly fitted with the adjusting ring.

[0008] By adopting the above technical solution, when loosening the adjusting sleeve, rotate the anti-loosening member to make the anti-loosening member abut against the top of the adjusting sleeve. Finally, rotate the anti-loosening bolt to make the anti-loosening bolt threadedly fit with the adjusting ring to lock the anti-loosening member, achieving the effect of loosening prevention of the adjusting sleeve.

[0009] Optionally, a stabilizing assembly is provided on the adjusting ring. The stabilizing assembly includes a pressing frame, a stabilizing ring, a fixing block, a connecting block and a moving block. A bearing ring is connected to the adjusting ring. A jacking ring is threadedly fitted on the inner ring wall of the bearing ring. The pressing frame is arranged between the top of the adjusting sleeve and the top of the jacking ring. The pressing frame is connected to the top of the adjusting sleeve by bolts. A number of sliders are slidably fitted on the bearing ring. One end of the stabilizing ring is rotatably connected to the slider, and an insertion groove is formed at the other end. The fixing block is connected to the pressing frame and enters the insertion groove. The connecting block is connected to the pressing frame. The moving block is slidably fitted on the pressing frame. The fixing block is located between the connecting block and the moving block. A pin is connected to the moving block. A limiting assembly for restricting the movement of the moving block is arranged between the moving block and the connecting block. During installation, the pin passes through the stabilizing ring, the fixing block and the connecting block.

[0010] By adopting the above technical solution, when stabilizing the adjusting sleeve, rotate the jacking ring to move the jacking ring to a specified height. Then, connect the pressing frame to the top end of the adjusting sleeve by bolts to make the pressing frame abut against the jacking ring. Then, move the slider, and the stabilizing ring rises, flips and descends to make the fixing block enter the insertion groove. Then, push the moving block to make the pin pass through the stabilizing ring, the fixing block and the connecting block. Finally, use the limiting assembly to restrict the movement of the moving block, achieving the effect of assisting in stabilizing the adjusting sleeve.

[0011] Optionally, the limiting assembly includes a rotating rod, a limiting post and a connecting plate. One end of the rotating rod is rotatably connected to the side wall of the moving block, and a limiting arc groove is formed at the other end. The center of the limiting arc groove coincides with the rotation center of one end of the rotating rod. The limiting post is connected to the side wall of the connecting block and is arranged on the same side as the rotating rod. The connecting plate is connected to the end of the limiting post. During limiting, the limiting post is located in the limiting arc groove, and the other end of the rotating rod is located between the connecting plate and the connecting block.

[0012] By adopting the above technical solution, when restricting the movement of the moving block, abut the moving block against the stabilizing ring, and then flip the rotating rod to make the limiting post enter the limiting arc groove, achieving the effect of restricting the movement of the moving block.

[0013] Optionally, a plurality of crushing wall liners are detachably connected to the crushing arc wall, the plurality of crushing wall liners cover the crushing arc wall, and an installation assembly for restricting the crushing wall liners is provided on the adjusting sleeve.

[0014] By adopting the above technical solution, the crushing arc wall of the adjusting sleeve is replaced by the crushing wall liner. The crushing wall liner itself has high wear resistance, and a crushing cavity is formed between it and the surface of the cone to improve the efficiency of extruding and impacting ores and reduce the possibility of damage to the adjusting sleeve.

[0015] Optionally, the installation assembly includes an extension block, a T-shaped rod, a pressing plate, a limiting block and a rotating ring. A plurality of installation cavities are provided inside the adjusting sleeve, one installation cavity corresponding to one crushing wall liner. Two reinforcing blocks are provided in the installation cavity. The T-shaped rod is arranged in the installation cavity. The extension block is connected to the crushing wall liner, the extension block enters the installation cavity, a hook portion is provided at the end of the extension block, the hook portion hooks on the T-shaped rod, the pressing plate is placed on the two reinforcing blocks, an installation hole is formed in the pressing plate, the limiting block is connected in the installation hole, the end of the T-shaped rod passes through the installation hole, a limiting groove is formed at the end of the T-shaped rod, the limiting block is slidably matched in the limiting groove, and the rotating ring is rotatably connected to the pressing plate and is in threaded cooperation with the end of the T-shaped rod.

[0016] By adopting the above technical solution, when installing the crushing wall liner, the extension block is inserted into the installation cavity to make the hook portion rest on the T-shaped rod. Then the pressing plate is placed on the reinforcing blocks, the T-shaped rod passes through the installation hole, and the limiting block enters the limiting groove. During this process, the rotating ring is toggled to make the rotating ring in threaded cooperation with the end of the T-shaped rod until the T-shaped rod tightens the hook portion, thereby restricting the freedom degree of the crushing wall liner and realizing the installation of the crushing wall liner.

[0017] Optionally, a shield is connected between the adjusting sleeve and the pressure frame by bolts.

[0018] By adopting the above technical solution, on the one hand, the shield is used to collect ores, and on the other hand, it assists in pressing the ores, improving the ore crushing efficiency of the crusher.

[0019] Optionally, a retaining ring is connected to the inner ring wall of the shield, the retaining ring fits against the top end of the crushing arc wall, and a plurality of reinforcing rib plates are connected between the inner wall of the shield and the retaining ring.

[0020] By adopting the above technical solution, the installation position of the shield is positioned by setting the retaining ring. The reinforcing rib plates are used to improve the structural strength of the shield and reduce the possibility of damage to the shield.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. When adjusting the crushing gap of the crusher, turn the adjustment sleeve to adjust the gap between the crushing arc wall and the cone, and finally use the anti-loosening part to lock the adjustment sleeve to adjust the crushing gap of the crusher. By setting the adjustment sleeve, the crushing gap of the crusher can be adjusted mechanically. Compared with the existing technology, it has fewer parts, fewer operating steps, easier maintenance, and lower cost investment, which improves the applicability of the mine crusher; 2. When stabilizing the adjustment sleeve, rotate the lifting ring to move it to the specified height, then connect the pressing frame to the top of the adjustment sleeve by bolts, so that the pressing frame contacts the lifting ring, then move the slider, the stabilizing ring rises, turns and falls, so that the fixed block enters the insertion groove, then push the moving block, so that the pin passes through the stabilizing ring, the fixed block and the connecting block, and finally use the limiting assembly to limit the movement of the moving block, so as to achieve the effect of assisting in stabilizing the adjustment sleeve; 3. When installing the mortar wall, extend the extension block into the installation cavity so that the hook is placed on the T-bar, then place the pressure plate on the reinforcement block, the T-bar passes through the installation hole, and the limiting block enters the limiting groove. During this process, turn the rotating ring so that the rotating ring and the end thread of the T-bar are matched until the T-bar tightens the hook, thereby limiting the freedom of the mortar wall and realizing the installation of the mortar wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the crushing mechanism in the embodiment of the present application.

[0023] Figure 2 It is a cross-sectional view used to illustrate the structure of the crushing mechanism in the embodiment of the present application.

[0024] Figure 3 It is an exploded view used to illustrate the structure of the adjustment sleeve, mortar wall and mounting assembly in the embodiment of the present application.

[0025] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0026] Figure 5 It is a cross-sectional view used to illustrate the structure of the installation component in the embodiment of the present application.

[0027] Figure 6 It is an exploded view used to illustrate the structure of the installation component in the embodiment of the present application.

[0028] Figure 7 It is a schematic diagram of the structure of the limiting component in the embodiment of the present application.

[0029] Description of the reference numerals: 1. Main frame; 11. Cone; 12. Main shaft; 13. Adjusting ring; 131. Bearing ring; 132. Jacking ring; 133. Slide block; 2. Adjusting sleeve; 21. Crushing arc wall; 22. Installation cavity; 23. Reinforcing block; 24. Mantle wall; 3. Installation component; 31. Extension block; 311. Hook part; 32. T-shaped rod; 321. Limiting groove; 33. Pressure plate; 34. Limiting block; 35. Rotating ring; 4. Anti-loosening part; 41. Anti-loosening bolt; 5. Stabilizing component; 51. Pressing frame; 52. Stabilizing ring; 53. Fixed block; 54. Connecting block; 55. Moving block; 551. Plug pin; 6. Limiting component; 61. Rotating rod; 611. Limiting arc groove; 62. Limiting column; 63. Connecting plate; 7. Shield; 71. Retaining ring; 72. Reinforcing rib plate. Detailed implementation manners

[0030] The following further elaborates on this application in conjunction with the attached Figures 1 - 7 drawings.

[0031] The embodiment of this application discloses a crushing mechanism. Refer to Figure 1 , the crushing mechanism includes a main frame 1, a cone 11 and a main shaft 12 installed on a crusher. The main shaft 12 is located inside the main frame 1, and the cone 11 is installed on the main shaft 12. An adjusting ring 13 is installed on the main frame 1.

[0032] Refer to Figure 1 , Figure 2 and Figure 3 , an adjusting sleeve 2 is arranged on the adjusting ring 13. A threaded part is arranged on the outer wall of the adjusting sleeve 2, and the adjusting sleeve 2 is threadedly engaged with the adjusting ring 13 through the threaded part. A crushing arc wall 21 is arranged on the side wall of the adjusting sleeve 2 close to the cone 11. A plurality of installation cavities 22 are arranged inside the adjusting sleeve 2. In this embodiment, taking eight as an example, two reinforcing blocks 23 are integrally formed in the installation cavity 22. Installation grooves are formed at positions corresponding to the installation cavities 22 on the crushing arc wall 21.

[0033] Refer to Figure 3 , Figure 4 and Figure 5 , a plurality of mantle walls 24 are arranged on the crushing arc wall 21. In this embodiment, taking eight as an example, the eight mantle walls 24 cover the crushing arc wall 21, and the mantle walls 24 correspond to the installation cavities 22 one by one. An installation component 3 is arranged on the adjusting sleeve 2. The installation component 3 includes an extension block 31, a T-shaped rod 32, a pressure plate 33, a limiting block 34 and a rotating ring 35. The extension block 31 is fixedly connected to the mantle wall 24. One end of the extension block 31 extends into the installation groove and is provided with a hook part 311.

[0034] Refer to Figure 4 and Figure 5, the T-shaped rod 32 is arranged in the installation cavity 22, and the hook portion 311 hooks the T-shaped rod 32. The pressing plate 33 is placed between two reinforcing blocks. An installation hole is formed in the pressing plate 33, and the limiting block 34 is fixedly connected to the installation hole. One end of the T-shaped rod 32 passes through the installation hole and is provided with a limiting groove 321, and the limiting block 34 is slidably matched in the limiting groove 321. The rotating ring 35 is rotatably connected to the pressing plate 33 and is in threaded cooperation with the T-shaped rod 32.

[0035] When installing the crushing wall 24, the crushing wall 24 is attached to the crushing arc wall 21, the extension block 31 extends into the installation cavity 22, and the hook portion 311 hooks the T-shaped rod 32. The rotating ring 35 is toggled. Due to the cooperation between the limiting block 34 and the limiting groove 321 and the cooperation between the rotating ring 35 and the T-shaped rod 32, the T-shaped rod 32 moves to abut against the extension block 31, thereby restricting the crushing wall 24 and realizing the installation of the crushing wall 24.

[0036] Refer to Figure 2 , a loosening prevention member 4 is arranged on the adjusting sleeve 2. The loosening prevention member 4 is a loosening prevention screw ring, and a plurality of arc-shaped grooves are formed on the surface of the loosening prevention member 4. The loosening prevention member 4 is in threaded cooperation with the adjusting sleeve 2 and abuts against the adjusting ring 13. A plurality of loosening prevention bolts 41 are inserted into the arc-shaped grooves. The loosening prevention bolts 41 pass through the adjusting ring 13 and are in threaded cooperation with the adjusting ring 13.

[0037] When preventing the adjusting sleeve 2 from loosening, the loosening prevention member 4 is rotated to make the loosening prevention member 4 abut against the adjusting ring 13. Finally, the loosening prevention bolts 41 are rotated to fasten the loosening prevention member 4, achieving the effect of preventing the adjusting sleeve 2 from loosening.

[0038] Refer to Figure 1 , Figure 2 and Figure 6 , a stabilizing assembly 5 is arranged on the adjusting ring 13. The stabilizing assembly 5 includes a pressing frame 51, a stabilizing ring 52, a fixing block 53, a connecting block 54 and a moving block 55. A bearing ring 131 is fixedly connected to the adjusting ring 13, and a jacking ring 132 is in threaded cooperation with the inner ring wall of the bearing ring 131. One end of the pressing frame 51 is connected to the top end of the adjusting sleeve 2 by a bolt, and the other end abuts against the jacking ring 132. A plurality of planes are formed on the outer ring wall of the bearing ring 131. In this embodiment, four planes are taken as an example. A lifting rail is fixedly connected to the plane. The lifting rail is a T-shaped rail, and a slider 133 is slidably matched on the lifting rail. One end of the stabilizing ring 52 is hinged to the slider 133, and an insertion groove is formed at the other end.

[0039] Refer to Figure 6, the fixed block 53 is fixedly connected to the pressing frame 51, and the fixed block 53 enters the insertion slot. The connecting block 54 is fixedly connected to the pressing frame 51 and is located on one side of the stabilizing ring 52. A moving rail is fixedly connected to the pressing frame 51 at a position corresponding to the other side of the stabilizing ring 52. The moving rail is a T-shaped rail, and the moving block 55 is slidably fitted on the moving rail. A pin 551 is fixedly connected to the moving block 55, and the pin 551 passes through the stabilizing ring 52, the fixed block 53, and the connecting block 54.

[0040] Referring to Figure 6 and Figure 7 , a limiting component 6 is provided between the moving block 55 and the connecting block 54. The limiting component 6 includes a rotating rod 61, a limiting column 62, and a connecting plate 63. One end of the rotating rod 61 is hinged to the side wall of the moving block 55, and a limiting arc groove 611 is formed at the other end. The center of the limiting arc groove 611 coincides with the rotation center of one end of the rotating rod 61. The limiting column 62 is fixedly connected to the side wall of the connecting block 54 and is arranged on the same side as the rotating rod 61. The connecting plate 63 is fixedly connected to the end of the limiting column 62 away from the connecting block 54.

[0041] When stabilizing and adjusting the sleeve 2, rotate the jacking ring 132 to the specified height. One end of the pressing frame 51 is bolted to the top of the adjusting sleeve 2, and the other end abuts against the top wall of the jacking ring 132. Then move the slider 133, and flip and lower the stabilizing ring 52 so that the fixed block 53 enters the insertion slot. Push the moving block 55 to insert the pin 551 into the stabilizing ring 52, the fixed block 53, and the connecting block 54. Finally, flip the rotating rod 61 so that the limiting column 62 enters the limiting arc groove 611 to limit the movement of the moving block 55, achieving the effect of further stabilizing the adjusting sleeve 2.

[0042] Referring to Figure 1 and Figure 2 , a shield 7 is bolted between the adjusting sleeve 2 and the pressing frame 51. A retaining ring 71 is fixedly connected to the inner ring wall of the shield 7. The retaining ring 71 fits against the top of the crushing arc wall 21, and the retaining ring 71 is used to position the installation position of the shield 7. A plurality of reinforcing rib plates 72 are fixedly connected to the shield 7, and the reinforcing rib plates 72 are used to improve the connection strength of the shield 7.

[0043] The implementation principle of a crushing mechanism of the embodiment of the present application is as follows: during installation, the extension block 31 on the mortar wall 24 is extended into the installation cavity 22, so that the hook portion 311 hooks the T-bar 32, the pressure plate 33 is placed between the two reinforcement blocks 23, the rotating ring 35 is turned to move the T-bar 32 to press against the extension block 31 to stabilize the mortar wall 24, the adjustment sleeve 2 is threadedly engaged with the adjustment ring 13 to adjust the gap between the mortar wall 24 and the surface of the cone 11, and then the anti-loosening member 4 is rotated until the anti-loosening member 4 presses against the adjustment ring 13, the anti-loosening bolt 41 is rotated to stabilize the anti-loosening member 4, and the anti-loosening bolt 41 is rotated to stabilize the anti-loosening member 4. Move the lifting ring 132 to the specified position, place the pressure frame 51 between the adjustment sleeve 2 and the lifting ring 132, and fix the pressure frame 51 on the top of the adjustment sleeve 2 through the thread. Move the slider 133, and the stabilizing ring 52 moves, flips, and moves in the opposite direction, so that the fixed block 53 enters the insertion groove, pushes the moving block 55, and the pin 551 passes through the stabilizing ring 52, the fixed block 53 and the connecting block 54. Flip the rotating rod 61, so that the limiting column 62 enters the limiting arc groove 611 to stabilize the pressure frame 51, and finally connect the baffle 7 between the adjustment sleeve 2 and the pressure frame 51 through bolts to realize the installation of the crushing mechanism.

[0044] By setting the adjustment sleeve 2, the crushing gap of the crusher can be adjusted mechanically. Compared with the prior art, it has fewer parts, fewer operating steps, easier maintenance, and lower cost investment, thereby improving the applicability of the mining crusher.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A crushing mechanism, comprising a main frame (1), a cone (11) and a main shaft (12) mounted on a crusher, characterized in that: An adjusting ring (13) is installed on the main frame (1), an adjusting sleeve (2) is arranged on the adjusting ring (13), a threaded portion is arranged on the outer ring wall of the adjusting sleeve (2), the adjusting sleeve (2) is threadedly engaged with the adjusting ring (13), a crushing arc wall (21) is arranged on the inner ring wall of the adjusting sleeve (2), the main shaft (12) and the cone (11) are both arranged inside the main frame (1), the cone (11) is installed on the main shaft (12), and a locking member (4) for limiting the movement of the adjusting sleeve (2) is arranged on the adjusting ring (13), and during crushing, the ore is located between the crushing arc wall (21) and the cone (11).

2. The crushing mechanism according to claim 1, characterized in that: The anti-loosening member (4) is an anti-loosening screw ring. The anti-loosening member (4) is threadedly engaged with the adjusting sleeve (2) and fits the adjusting ring (13). The anti-loosening member (4) is provided with a plurality of anti-loosening bolts (41). The anti-loosening bolts (41) pass through the anti-loosening member (4) and the adjusting ring (13) and are threadedly engaged with the adjusting ring (13).

3. The crushing mechanism according to claim 1, characterized in that: The adjusting ring (13) is provided with a stabilizing component (5), and the stabilizing component (5) comprises a pressure frame (51), a stabilizing ring (52), a fixing block (53), a connecting block (54) and a moving block (55). The adjusting ring (13) is connected with a bearing ring (131), and a lifting ring (132) is threadedly fitted on the inner ring wall of the bearing ring (131). The pressure frame (51) is arranged between the top of the adjusting sleeve (2) and the top of the lifting ring (132). The pressure frame (51) is connected to the top of the adjusting sleeve (2) by bolts. A plurality of sliding blocks (133) are slidably fitted on the bearing ring (131), and one end of the stabilizing ring (52) is rotatably connected to the sliding block (133). The other end is provided with an insertion groove, the fixed block (53) is connected to the pressing frame (51), the fixed block (53) enters the insertion groove, the connecting block (54) is connected to the pressing frame (51), the moving block (55) is slidably fitted on the pressing frame (51), the fixed block (53) is located between the connecting block (54) and the moving block (55), a latch (551) is connected to the moving block (55), and a limiting component (6) for limiting the movement of the moving block (55) is provided between the moving block (55) and the connecting block (54). When installed, the latch (551) passes through the stabilizing ring (52), the fixed block (53) and the connecting block (54).

4. The crushing mechanism according to claim 3, characterized in that: The limiting assembly (6) comprises a rotating rod (61), a limiting column (62) and a connecting plate (63); one end of the rotating rod (61) is rotatably connected to the side wall of the moving block (55); the other end is provided with a limiting arc groove (611); the center of the limiting arc groove (611) coincides with the rotation center of one end of the rotating rod (61); the limiting column (62) is connected to the side wall of the connecting block (54) and is arranged on the same side as the rotating rod (61); the connecting plate (63) is connected to the end of the limiting column (62); when limiting, the limiting column (62) is located in the limiting arc groove (611); the other end of the rotating rod (61) is located between the connecting plate (63) and the connecting block (54).

5. The crushing mechanism according to claim 1, characterized in that: A plurality of mortar walls (24) are detachably connected to the crushing arc wall (21), the plurality of mortar walls (24) cover the crushing arc wall (21), and a mounting assembly (3) for limiting the mortar walls (24) is provided on the adjustment sleeve (2).

6. The crushing mechanism according to claim 5, characterized in that: The mounting assembly (3) comprises an extension block (31), a T-bar (32), a pressure plate (33), a limiting block (34) and a rotating ring (35); a plurality of mounting cavities (22) are arranged inside the adjustment sleeve (2); one mounting cavity (22) corresponds to one mortar wall (24); two reinforcing blocks (23) are arranged in the mounting cavity (22); the T-bar (32) is arranged in the mounting cavity (22); the extension block (31) is connected to the mortar wall (24); the extension block (31) enters the mounting cavity (22); an end of the extension block (31) is The part is provided with a hook portion (311), the hook portion (311) is hooked on the T-bar (32), the pressure plate (33) is placed on the two reinforcing blocks (23), the pressure plate (33) is provided with a mounting hole, the limiting block (34) is connected to the mounting hole, the end of the T-bar (32) passes through the mounting hole, the end of the T-bar (32) is provided with a limiting groove (321), the limiting block (34) is slidably fitted in the limiting groove (321), and the rotating ring (35) is rotatably connected to the pressure plate (33) and is threadedly fitted with the end of the T-bar (32).

7. The crushing mechanism according to claim 3, characterized in that: A blocking cover (7) is connected between the adjustment sleeve (2) and the pressing frame (51) via bolts.

8. The crushing mechanism according to claim 7, characterized in that: A retaining ring (71) is connected to the inner ring wall of the retaining cover (7), the retaining ring (71) fits the top of the broken arc wall (21), and a plurality of reinforcing ribs (72) are connected between the inner wall of the retaining cover (7) and the retaining ring (71).

Images