Crushing assembly of crusher

Abstract

The utility model provides a crushing assembly of a crusher. The crushing assembly of the crusher comprises a box body; the fixed cutter assembly is connected with the box body through a first detachable assembly; the screen assembly is connected with the fixed cutter assembly through a second detachable assembly; the fixed cutter assembly, the screen assembly and the box body are connected through a third detachable assembly; the screen assembly is connected with the bottom of the box body through a first pin shaft; the screen assembly is connected with the top of the box body through an oil cylinder; when the fixed cutter assembly is detached, the third detachable assembly and the first detachable assembly are in a detached state, then the fixed cutter assembly and the screen assembly are pushed out through the oil cylinder, then the second detachable assembly is in a detached state, and the fixed cutter assembly is taken out. When the screen assembly is detached, the third detachable assembly and the second detachable assembly are in a detached state, and the screen assembly is pushed out through the oil cylinder. According to the utility model, the stationary knife component or the screen component can be detached independently, and the stationary knife component or the screen component can be replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to a crushing component of a crusher. Background Art

[0002] Crushers have developed rapidly in the field of solid waste treatment. A single-shaft crusher mainly drives the moving knives on the rotor to rotate through the main shaft, and cuts with the fixed knives on the circumferential trajectory line of the moving knives to realize the crushing of solid waste. After the waste is crushed, the particle size is screened through the lower screen. During operation, both the fixed knives and the screen will wear. However, due to the structure of the existing crusher, the fixed knives are usually arranged inside the crushing cavity. When replacing, the screen must be removed first, and then the fixed knife unit is disassembled from the inside. The fixed knives or the screen cannot be disassembled separately, and the maintenance process is quite cumbersome. Summary of the Utility Model

[0003] The utility model provides a crushing component of a crusher, which solves the technical problem that the fixed knife component and the screen component of the existing crusher cannot be disassembled separately.

[0004] To solve the above technical problems, the technical solution of the present model is as follows:

[0005] A crushing component of a crusher, comprising:

[0006] A box body;

[0007] A fixed knife component connected to the box body through a first detachable component;

[0008] A screen component connected to the fixed knife component through a second detachable component;

[0009] The fixed knife component, the screen component and the box body are connected through a third detachable component;

[0010] The screen component is connected to the bottom of the box body through a first pin shaft;

[0011] The screen component is connected to the top of the box body through an oil cylinder;

[0012] Wherein, when the fixed knife component is disassembled, the third detachable component and the first detachable component are in a disassembled state, the second detachable component is in a fixed state, the fixed knife component together with the screen component is pushed out through the oil cylinder, and then the second detachable component is in a disassembled state;

[0013] When the screen component is disassembled, the third detachable component and the second detachable component are in a disassembled state, and the screen component is pushed out through the oil cylinder together.

[0014] Optionally, the fixed knife assembly includes: a fixed knife module; a plurality of fixed knife stoppers are arranged on the first end surface of the fixed knife module, and a first threaded hole is opened on the fixed knife stopper;

[0015] The first detachable component includes: a first bolt, and the first bolt passes through the first threaded hole and is fixedly connected to the box body.

[0016] Optionally, the screen assembly includes: a screen body; a connecting plate is arranged at the top of the screen body; a first avoidance hole is arranged on the connecting plate;

[0017] The second detachable component includes: a second bolt or a pin, and the fixed knife assembly is connected to the screen assembly through the second bolt or the pin.

[0018] Optionally, second threaded holes are opened on the fixed knife stoppers at both ends of the fixed knife module;

[0019] Second connection holes are arranged above the first avoidance holes at both ends of the connecting plate;

[0020] The second bolt passes through the second connection hole and the second threaded hole to fixedly connect the screen assembly and the fixed knife assembly.

[0021] Optionally, the top of the fixed knife module is fixedly connected to a baffle;

[0022] A first groove and a second groove are symmetrically arranged at both ends of the baffle;

[0023] A second through hole is opened between the adjacent first groove and the second groove, and a first through hole is opened on the surface of the first groove away from the second groove;

[0024] The pin is arranged in the adjacent first through hole and second through hole;

[0025] Lugs are arranged at the top positions at both ends of the connecting plate;

[0026] A third through hole is opened on the lug;

[0027] The pin passes through the first through hole, the second through hole and the third through hole to fixedly connect the screen assembly and the fixed knife assembly.

[0028] Optionally, the third detachable component includes: a third bolt, and the screen assembly, the fixed knife assembly and the box body are connected through the third bolt.

[0029] Optionally, third connection holes are arranged on both sides of the first avoidance hole;

[0030] The third bolt passes through the third connection hole to fixedly connect the screen assembly to the box body and the fixed knife assembly.

[0031] Optionally, a fixing ring is provided at the bottom of the screen body; a pin shaft sleeve is sleeved inside the fixing ring, and the pin shaft sleeve is connected to a first pin shaft;

[0032] A fixing groove is provided on the box body, and the first pin shaft is snapped into the fixing groove;

[0033] The first pin shaft is fixedly connected to the box body by passing a fourth bolt through the first pin shaft and connecting it to the fixing groove.

[0034] Optionally, connection blocks are further provided at both ends of the connecting plate;

[0035] The oil cylinder includes a cylinder barrel and a piston rod movably connected to the cylinder barrel;

[0036] The piston rod is pin-connected to the connection block, and the cylinder barrel is pin-connected to the top of the box body.

[0037] Optionally, the box body is rotatably connected to the first end of the safety support rod;

[0038] A card slot is provided at the second end of the safety support rod;

[0039] Protrusions are provided on the outer surface of the screen body;

[0040] The card slot is snap-connected to the protrusion.

[0041] The above solution of the present invention has at least the following beneficial effects:

[0042] By changing the disassembly and fixing states of the first detachable component, the second detachable component and the third detachable component, the first pin shaft connects the screen component to the bottom of the box body and connects the oil cylinder to the top of the box body, so that the screen component rotates around the first pin shaft, and it is possible to separately disassemble the fixed knife component or the screen component, which is convenient for replacing the fixed knife component or the screen component. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is a schematic structural diagram of the crushing component of the crusher of the present invention;

[0044] Figure 2 is the present invention Figure 1 Sectional view taken along line A-A;

[0045] Figure 3 is a schematic structural diagram when the fixed knife component and the screen component of the present invention are separated;

[0046] Figure 4 is the present invention Figure 3 Sectional view taken along line B-B;

[0047] Figure 5 It is a schematic structural view when the fixed knife assembly and the screen assembly of the present utility model are connected;

[0048] Figure 6 It is the present utility model Figure 5 Sectional view of the C-C plane;

[0049] Figure 7 It is the present utility model Figure 2 Partial enlarged view of area D in the present utility model;

[0050] Figure 8 It is the present utility model Figure 5 Partial enlarged view of area E in the present utility model;

[0051] Figure 9 It is the present utility model Figure 6 Partial enlarged view of area F in the present utility model;

[0052] Figure 10 It is the present utility model Figure 6 Partial enlarged view of area G in the present utility model;

[0053] Figure 11 It is the left view of the crushing assembly of the crusher of the present utility model;

[0054] Figure 12 It is the schematic structural view of the screen assembly of the present utility model;

[0055] Figure 13 It is the schematic structural view of the fixed knife assembly of the present utility model;

[0056] Explanation of reference numerals:

[0057] 1. Box body; 11. Safety support rod; 2. Fixed knife assembly; 21. Fixed knife stopper; 22. Fixed knife module; 23. First threaded hole; 24. Second threaded hole; 25. Baffle; 251. First groove; 252. Second groove; 26. Plug pin; 27. Handle; 3. Screen assembly; 31. Screen body; 311. Protrusion; 32. Screen hole; 33. Connecting plate; 331. First avoidance hole; 332. Second connecting hole; 333. Third connecting hole; 34. Ear plate; 341. Third through hole; 35. Fixed ring; 36. Pin shaft sleeve; 37. Connecting block; 4. First pin shaft; 41. Fixed groove; 5. Oil cylinder; 51. Cylinder barrel; 52. Piston rod; 6. First bolt; 7. Second bolt; 8. Third bolt; 9. Fourth bolt. Detailed implementation manners

[0058] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0059] As Figure 1 , Figure 3 and Figure 4 shown, an embodiment of the present utility model provides a crushing assembly of a crusher, including: a box body 1; a fixed knife assembly 2 connected to the box body 1 through a first detachable assembly;

[0060] a screen assembly 3, connected to the fixed knife assembly 2 through a second detachable assembly;

[0061] the fixed knife assembly 2 and the screen assembly 3 are connected to the box body 1 through a third detachable assembly;

[0062] the screen assembly 3 is connected to the bottom of the box body 1 through a first pin shaft 4;

[0063] the screen assembly 3 is connected to the top of the box body 1 through an oil cylinder 5;

[0064] Wherein, when the fixed knife assembly 2 is disassembled, the third detachable assembly and the first detachable assembly are in a disassembled state, the second detachable assembly is in a fixed state, the fixed knife assembly 2 and the screen assembly 3 are pushed out together through the oil cylinder 5, and then the second detachable assembly is in a disassembled state;

[0065] When the screen assembly 3 is disassembled, the third detachable assembly and the second detachable assembly are in a disassembled state, and the screen assembly 3 is pushed out together through the oil cylinder 5.

[0066] The present utility model is provided with a first detachable assembly, a second detachable assembly and a third detachable assembly, and by changing the disassembled and fixed states of the first detachable assembly, the second detachable assembly and the third detachable assembly, the function of separately disassembling the fixed knife assembly 2 and the screen assembly 3 is achieved. The screen assembly 3 is connected to the bottom of the box body 1 through the first pin shaft 4, and the oil cylinder 5 is connected to the top of the box body 1, so as to enable the screen assembly 3 to rotate around the first pin shaft 4.

[0067] In an optional embodiment of the present utility model, the fixed knife assembly 2 includes: a fixed knife module 22;

[0068] On the first end face of the fixed knife module 22, a plurality of fixed knife stoppers 21 are arranged, and a first threaded hole 23 is opened on the fixed knife stopper 21;

[0069] The first detachable component includes: a first bolt 6, and the first bolt 6 passes through the first threaded hole 23 and is fixedly connected to the box body 1.

[0070] As Figure 2 , Figure 7 and Figure 9 shown, in the above two embodiments, a plurality of fixed knife stoppers 21 are equidistantly arranged on the first end surface of the fixed knife module 22. A first threaded hole 23 is formed in the middle of the fixed knife stopper 21, and the first threaded hole 23 penetrates through the fixed knife stopper 21. The surface of the fixed knife stopper 21 away from the fixed knife module 22 contacts the box body 1, and a threaded hole corresponding to the first threaded hole 23 is provided on the box body 1, which serves to fix the first bolt 6 to the box body 1.

[0071] In an alternative embodiment of the present invention, the screen assembly 3 includes: a screen body 31;

[0072] A connecting plate 33 is provided at the top of the screen body 31;

[0073] A first avoidance hole 331 is provided on the connecting plate 33;

[0074] The second detachable component includes: a second bolt 7 or a pin 26, and the fixed knife component 2 is connected to the screen assembly 3 through the second bolt 7 or the pin 26.

[0075] In an alternative embodiment of the present invention, second threaded holes 24 are formed in the fixed knife stoppers 21 at both ends of the fixed knife module 22;

[0076] Second connection holes 332 are provided above the first avoidance holes 331 at both ends of the connecting plate 33;

[0077] The second bolt 7 passes through the second connection hole 332 and the second threaded hole 24 to fixedly connect the screen assembly 3 to the fixed knife component 2.

[0078] As Figure 5 and Figure 8 shown, in the above embodiment,

[0079] The connecting plate 33 is connected to the outer surface of the top of the screen body 31, and the screen body 31 has the same width as the fixed knife component 2, so that the connecting plate 33 contacts the fixed knife stopper 21.

[0080] The number of the first avoidance holes 331 is the same as the number of the first threaded holes 23 and the positions correspond to each other. The first avoidance holes 331 are through holes and the diameter is larger than that of the first bolt 6, which serves to facilitate the disassembly and fixation of the first bolt 6.

[0081] In use, the first bolt 6 passes through the first avoidance hole 331 and is threadedly connected to the first threaded hole 23 and the corresponding threaded hole on the box body 1, thereby fixedly connecting the fixed knife assembly 2 to the box body 1.

[0082] The second threaded hole 24 and the second connection hole 332 are on the same straight line. The second connection hole 332 is a through hole, and the diameter of the second connection hole 332 is larger than the diameter of the shank of the second bolt 7 and smaller than the diameter of the head of the second bolt 7. By passing the second bolt 7 through the second connection hole 332 and the second threaded hole 24, the fixed connection between the connecting plate 33 and the fixed knife stopper is realized, thereby fixedly connecting the screen assembly 3 to the fixed knife assembly 2.

[0083] In an alternative embodiment of the present utility model, the top of the fixed knife module 22 is fixedly connected to the baffle 25;

[0084] The two ends of the baffle 25 are symmetrically provided with a first groove 251 and a second groove 252;

[0085] A second through hole is formed between the adjacent first groove 251 and the second groove 252, and a first through hole is formed on the surface of the first groove 251 away from the second groove 252;

[0086] The plug pin 26 is arranged in the adjacent first through hole and second through hole;

[0087] Lugs 34 are arranged at the top positions of both ends of the connecting plate 33;

[0088] A third through hole 341 is formed in the lug 34;

[0089] The plug pin 26 passes through the first through hole, the second through hole and the third through hole 341 to fixedly connect the screen assembly 3 and the fixed knife assembly 2.

[0090] Such as Figure 13As shown in the above embodiments, the top of the fixed knife module 22 is perpendicularly connected to the baffle 25. The first groove 251 and the second groove 252 are symmetrically arranged at the edge of one side of the baffle 25. Moreover, the diameters of the first through hole, the second through hole, and the third through hole 341 are all larger than the diameter of the bolt 26, such that the bolt 26 can pass through the first groove 251, the second groove 252, and the ear plate 34, thereby fixedly connecting the ear plate 34 to the baffle 25, playing a role in fixedly connecting the screen assembly 3 and the fixed knife assembly 2. The centers of the first through hole, the second through hole, and the third through hole are all located on the same straight line. The thickness of the ear plate is less than the width of the second groove 252. The third through hole 341, the first through hole, and the second through hole are all located on the same straight line. A handle 27 is arranged on the side of the bolt 26. Preferably, the handle 27 is fixedly connected to the part of the side of the bolt 26 located within the first groove 251. By pulling the handle 27, the bolt 26 is driven to move, playing a role in fixing and disassembling the ear plate 34 to and from the baffle 25. By fixing the ear plate 34 to the baffle 25 in the present utility model, the connection strength between the fixed knife assembly 2 and the screen assembly 3 is enhanced, avoiding the situation where the second bolt 7 breaks due to excessive force when disassembling the fixed knife assembly 2.

[0091] When fixing the fixed knife assembly 2 and the screen assembly 3, rotate the screen assembly 3, snap the ear plate 34 into the second groove 252, and then push the handle 27 in the direction towards the inside of the baffle 25 to fix the ear plate 34 to the second groove 252. When disassembling the fixed knife assembly 2 and the screen assembly 3, push the handle 27 in the direction towards the outside of the baffle 25, and then rotate the screen assembly 3 to disengage the ear plate 34 from the second groove 252.

[0092] In an alternative embodiment of the present utility model, the third detachable component includes a third bolt 8, and the screen assembly 3, the fixed knife assembly 2, and the box body 1 are connected by the third bolt 8.

[0093] In an alternative embodiment of the present utility model, third connection holes 333 are arranged on both sides of the first avoidance hole 331;

[0094] The third bolt 8 passes through the third connection holes 333 to fixedly connect the screen assembly 3 to the box body 1 and the fixed knife assembly 2.

[0095] As Figure 2 and Figure 7As shown, in the above two embodiments, the third connection hole 333 is a through hole. The diameter of the third connection hole 333 is greater than the diameter of the bolt body of the third bolt 8 and less than the diameter of the bolt head of the third bolt 8. The bolt body of the third bolt 8 passes through the third connection hole 333, then passes through the fixed knife assembly 2 between two adjacent fixed knife blocks 21, and finally is threadedly connected to the threaded hole at the corresponding position of the box body 1, fixedly connecting the screen assembly 3 and the box body 1. Since the third bolt 8 passes through the third connection hole 333, the fixed knife assembly 2 and is fixedly connected to the box body 1, the third bolt 8 connects the screen assembly 3, the fixed knife assembly 2 and the box body 1.

[0096] In an alternative embodiment of the present invention, the screen body 31 is an arc-shaped structure;

[0097] A fixing ring 35 is provided at the bottom of the screen body 31;

[0098] A pin shaft sleeve 36 is sleeved inside the fixing ring 35, and the pin shaft sleeve 36 is connected to the first pin shaft 4;

[0099] Pin shaft rings 41 are provided at both ends of the first pin shaft 4. The fourth bolt 9 passes through the pin shaft rings 41 and is connected to the box body 1 to fixedly connect the first pin shaft 4 and the box body 1.

[0100] As Figure 4 、 Figure 6 、 Figure 10 and Figure 12 shown, in the above embodiment, a screen hole 32 is formed in the screen body 31; a fixing ring 35 is provided at the bottom of the screen body 31; the number of the fixing rings 35 is multiple and the centers of the fixing rings 35 are all on the same straight line. The number of the first pin shafts 4, the fixing rings 35 and the pin shaft sleeves 36 is the same. Threaded holes are formed at both ends of the first pin shaft 4. The first pin shaft 4 is snapped into the fixing groove 41, then the first pin shaft 4 is pushed to pass through the pin shaft sleeve 36 inside the fixing ring 35, and finally the fourth bolt 9 passes through the threaded holes at both ends of the first pin shaft 4 and is fixedly connected to the threaded holes on the fixing groove 41, serving to fixedly connect the first pin shaft 4 and the box body 1.

[0101] In an alternative embodiment of the present invention, connection blocks 37 are further provided at both ends of the connecting plate 33;

[0102] The oil cylinder 5 includes a cylinder barrel 51;

[0103] A piston rod 52 movably connected to the cylinder barrel 51;

[0104] The piston rod 52 is pin-connected to the connection block 37, and the cylinder barrel 51 is pin-connected to the top of the box body 1.

[0105] In an optional embodiment of the present invention, the box body 1 is rotatably connected to the first end of the safety support rod 11;

[0106] The second end of the safety support rod 11 is provided with a slot;

[0107] The outer surface of the screen body 31 is provided with a protrusion 311;

[0108] The locking slot is locked with the protrusion 311 .

[0109] like Figure 11 As shown, in the above embodiment, the first end of the piston rod 52 is located inside the open end of the cylinder 51, and the second end of the piston rod 52 is connected to the connecting block 37 with a pin, thereby connecting the oil cylinder 5 to the screen assembly 3. The closed end of the cylinder 51 is connected to the top pin of the housing 1, thereby connecting the oil cylinder 5 to the housing 1.

[0110] like Figure 4 and Figure 6 As shown, preferably, the first end of the safety strut 11 is connected to the box body 1 with a pin, and the safety strut 11 is rotated so that the slot on the second end of the safety strut 11 is engaged with the protrusion 311, thereby preventing the screen assembly 3 from falling off.

[0111] The disassembly method of the crushing assembly of the utility model is as follows:

[0112] 1. Method for disassembling the fixed knife assembly separately:

[0113] Step 1: Rotate the safety support rod 11 to separate the protrusion 311 from the slot;

[0114] Step 2: Remove all the first bolts 6 and the third bolts 8;

[0115] Step 3: Control the oil cylinder 5 to drive the piston rod 52 to move out of the cylinder tube 51, so that the screen assembly 3 and the fixed knife assembly 2 are pushed out together and are disconnected from the box body 1;

[0116] Step 4: Remove all the second bolts 7;

[0117] Step 5: Move the latch 26 so that the latch 26 exits the third through hole 341 ;

[0118] Step 6: Remove the fixed knife assembly 2 from the screen assembly 3 to complete the separate disassembly of the fixed knife assembly 2.

[0119] 2. Separate disassembly method of the screen assembly:

[0120] Step 1: Rotate the safety support rod 11 to separate the protrusion 311 from the card slot;

[0121] Step 2: Remove all the second bolts 7 and third bolts 8;

[0122] Step 3: Move the bolt pin 26 so that the bolt pin 26 exits from the third through hole 341;

[0123] Step 4: Control the oil cylinder 5 to drive the piston rod 52 to move out of the cylinder barrel 51, so that the screen assembly 3 is separated from the fixed knife assembly 2;

[0124] Step 5: Separate the piston rod 52 from the connecting block 37;

[0125] Step 6: Remove all the fourth bolts 9, take out the first pin shaft 4 from the fixed ring 35, and complete the disassembly of the screen assembly 3.

[0126] In a specific embodiment of the present utility model, the fixed knife assembly 2 and the screen assembly 3 of the crusher are both installed on the box body 1. There are 8 fixed knife blocks 21 on the surface of the fixed knife assembly 2, and each fixed knife block 21 is provided with a first threaded hole 23. In addition, the two fixed knife blocks 21 at both ends are also provided with second threaded holes 24. The fixed knife module 22 is fixedly connected with the fixed knife block 21 through the first bolt 6. Threaded holes corresponding to the first threaded holes 23 on the fixed knife assembly 2 are provided on the box body 1, and the fixed knife assembly 2 is fixedly connected with the box body 1 through the first bolt 6.

[0127] The shape of the screen assembly 3 is arc-shaped, and 9 fixed rings 35 are provided at the bottom. Each fixed ring 35 is provided with a pin shaft sleeve 36. Two ear plates 34 with third through holes 341 are provided at both ends of the connecting plate 33 at the top of the screen assembly 3. The pin shaft sleeve 36 and the first pin shaft 4 are in tolerance fit.

[0128] The top of the screen assembly 3 is provided with a connecting plate 33. The connecting plate 33 is provided with 8 first avoidance holes 331, 2 second connection holes 332 and 16 third connection holes 333. After the screen assembly 3 rotates around the first pin shaft 4 and contacts the fixed knife assembly 2, the third through holes 341 on the ear plates 34 of the screen assembly 3 correspond to the second grooves 252 at both ends of the fixed knife assembly 2. A handle 27 is provided on the bolt pin 26, and the bolt pin 26 can be moved by pushing the handle 27. Move the bolt pin 26 to pass through the third through hole 341 on the ear plate 34, and the screen assembly 3 can be temporarily fixed with the fixed knife assembly 2. The first avoidance holes on the connecting plate 33 are avoidance holes corresponding to the first bolts 6. The third bolts 8 pass through the third connection holes 333 to lock the screen assembly 3 and the fixed knife assembly 2 on the box body 1 at the same time. The second bolts 7 lock the screen assembly 3 and the fixed knife assembly 2 separately through the second connection holes 332, and then rotate the safety support rod 11 to the lower part of the screen assembly 3 to play a safety protection role.

[0129] Both sides of the connecting plate 33 of the screen assembly 3 are provided with connecting blocks 37. After the screen assembly 3 is installed, the connecting blocks 37 on both sides of the screen body 31 are respectively connected to the piston rods 52 of the oil cylinders 5 arranged on both sides of the box body 1 through pin shafts, and the bottom of the cylinder barrel 51 of the oil cylinder 5 is pin-connected to the oil cylinder connecting block on the box body 1.

[0130] The above is the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle described in the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A crushing component of a crusher, characterized in that, include: Box (1); a fixed knife assembly (2) connected to the box (1) via a first detachable assembly; A screen assembly (3) is connected to the fixed knife assembly (2) via a second detachable assembly; The fixed knife assembly (2), the screen assembly (3) and the box (1) are connected via a third detachable assembly; The screen assembly (3) is connected to the bottom of the box (1) via a first pin (4); The screen assembly (3) is connected to the top of the box (1) via an oil cylinder (5); When the fixed knife assembly (2) is disassembled, the third detachable assembly and the first detachable assembly are in a disassembled state, and the second detachable assembly is in a fixed state. The fixed knife assembly (2) and the screen assembly (3) are pushed out together through the oil cylinder (5), and then the second detachable assembly is in a disassembled state. When the screen assembly (3) is disassembled, the third detachable assembly and the second detachable assembly are in a disassembled state, and the screen assembly (3) is pushed out together through the oil cylinder (5).

2. The crushing assembly of the crusher according to claim 1, characterized in that: The fixed knife assembly (2) comprises: a fixed knife module (22); a plurality of fixed knife stoppers (21) are provided on a first end surface of the fixed knife module (22); and a first threaded hole (23) is formed on the fixed knife stoppers (21); The first detachable component comprises a first bolt (6), the first bolt (6) passing through the first threaded hole (23) and fixedly connected to the box body (1).

3. The crushing assembly of the crusher according to claim 2, characterized in that, The screen assembly (3) comprises: a screen body (31); a connecting plate (33) is provided on the top of the screen body (31); and a first avoidance hole (331) is provided on the connecting plate (33); The second detachable component comprises a second bolt (7) or a latch (26), and the fixed knife component (2) is connected to the screen component (3) via the second bolt (7) or the latch (26).

4. The crushing assembly of the crusher according to claim 3, characterized in that: The fixed knife blocks (21) at both ends of the fixed knife module (22) are provided with second threaded holes (24); Second connection holes (332) are provided above the first avoidance holes (331) at both ends of the connection plate (33); The second bolt (7) passes through the second connecting hole (332) and the second threaded hole (24) to securely connect the screen assembly (3) to the fixed knife assembly (2).

5. The crushing assembly of the crusher according to claim 3, characterized in that: The top of the fixed blade module (22) is fixedly connected to the baffle (25); A first groove (251) and a second groove (252) are symmetrically provided at both ends of the baffle (25); A second through hole is formed between the adjacent first groove (251) and second groove (252), and a first through hole is formed on the surface of the first groove (251) away from the second groove (252); The latch (26) is arranged in the adjacent first through hole and the second through hole; Ear plates (34) are provided at the top positions of both ends of the connecting plate (33); The ear plate (34) is provided with a third through hole (341); The latch (26) passes through the first through hole, the second through hole and the third through hole (341) to securely connect the screen assembly (3) and the fixed knife assembly (2).

6. The crushing assembly of the crusher according to claim 3, characterized in that, The third detachable assembly comprises a third bolt (8), through which the screen assembly (3), the fixed knife assembly (2) and the box body (1) are connected.

7. The crushing assembly of the crusher according to claim 6, characterized in that: Third connecting holes (333) are provided on both sides of the first avoidance hole (331); The third bolt (8) passes through the third connection hole (333) to securely connect the screen assembly (3) to the box (1) and the fixed knife assembly (2).

8. The crushing assembly of the crusher according to claim 3, characterized in that: A fixing ring (35) is provided at the bottom of the screen body (31); a pin sleeve (36) is sleeved inside the fixing ring (35), and the pin sleeve (36) is connected to the first pin (4); The box body (1) is provided with a fixing groove (41), and the first pin shaft (4) is clamped into the fixing groove (41); The first pin shaft (4) is fixedly connected to the box body (1) by a fourth bolt (9) passing through the first pin shaft (4) and connecting with the fixing groove (41).

9. The crushing assembly of the crusher according to claim 3, characterized in that: Connecting blocks (37) are also provided at both ends of the connecting plate (33); The oil cylinder (5) comprises a cylinder barrel (51) and a piston rod (52) movably connected to the cylinder barrel (51); The piston rod (52) is connected to the connecting block (37) by a pin, and the cylinder (51) is connected to the top of the box body (1) by a pin.

10. The crushing assembly of the crusher according to claim 9, characterized in that: The box body (1) is rotatably connected to the first end of the safety support rod (11); The second end of the safety support rod (11) is provided with a card slot; The outer surface of the screen body (31) is provided with a protrusion (311); The clamping slot is clamped with the protrusion (311).

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