CN214514943U - Social source scrap steel crusher - Google Patents

Abstract

The utility model relates to a social source scrap steel breaker, it includes the breaker body, this internal chamber that holds that is equipped with of breaker, it rotates and is connected with the squeeze roll to hold the intracavity, be provided with first driving piece on the breaker body, first driving piece drive squeeze roll rotates, the mounting hole has been seted up on the lateral wall of breaker, it has the door plant that the lid closed the mounting hole to articulate on the lateral wall of breaker, it is connected with the support to hold intracavity horizontal sliding, the mounting hole setting is close to or keeps away from towards the direction of sliding of support, it is connected with the quartering hammer to rotate on the support, still be provided with the second driving piece on the support, second driving piece drive quartering hammer rotates. When the quartering hammer needs to be maintained, the door plant is opened in the upset, removes the support and makes the quartering hammer be located the outside of breaker body, carries out the maintenance operation to the quartering hammer again, compares and maintains the quartering hammer in the inside of breaker body, has increased maintenance operation space for it is more convenient to maintain the quartering hammer, and has improved the maintenance efficiency of quartering hammer.

Description

Social source scrap steel crusher

Technical Field

The application relates to the field of crushers, in particular to a social source scrap steel crusher.

Background

The scrap steel refers to steel materials which can not become products in the production process of steel plants and steel materials in equipment and components which are scrapped after being used, and along with the development of times, people begin to recycle the scrap steel in order to reduce the mining consumption of natural mineral resources and reduce the total social energy consumption, and a scrap steel crusher is a crushing machine for producing scrap steel crushed materials and is important equipment in the production and processing of the scrap steel.

Chinese utility model patent like patent publication No. CN209476369U discloses a scrap steel breaker, including the breaker body, the first bearing of breaker body inner wall fixedly connected with, the second pivot is worn to be equipped with inside the first bearing, and second pivot fixed surface is connected with the second quartering hammer, and the first driven wheel of second bearing left side fixedly connected with has cup jointed first belt, the inside lower extreme fixedly connected with second bearing of breaker body on the first driven wheel surface.

Adopt above-mentioned scrap steel breaker, when first quartering hammer or second quartering hammer broke down, need get into inside first quartering hammer or the maintenance of second quartering hammer of breaker body, the breaker inner space is limited, is difficult to let out the trick and operates when carrying out the maintenance operation, has reduced maintenance efficiency, and is more troublesome, remains to improve.

SUMMERY OF THE UTILITY MODEL

In order to improve the inside problem that efficiency is lower that maintains first quartering hammer or second quartering hammer that gets into the breaker body, this application provides a social source scrap steel breaker.

The utility model provides a social source steel scrap breaker adopts following technical scheme:

the utility model provides a social source scrap steel breaker, includes the breaker body, this internal chamber that holds that is equipped with of breaker, it rotates and is connected with squeeze roll to hold the intracavity, be provided with first driving piece on the breaker body, first driving piece drive squeeze roll rotates, the mounting hole has been seted up on the lateral wall of breaker, the mounting hole with hold the chamber intercommunication, it has the lid to close to articulate on the lateral wall of breaker the door plant of mounting hole, it is connected with the support to hold intracavity horizontal sliding, the glide direction court of support is close to or keeps away from the mounting hole sets up, it is connected with the quartering hammer to rotate on the support, still be provided with the second driving piece on the support, the second driving piece drive the quartering hammer rotates.

Through adopting above-mentioned technical scheme, when the quartering hammer needs the maintenance, control second driving piece makes quartering hammer stall, the door plant is opened in the upset, it makes the support remove towards the direction that is close to the mounting hole to remove the support, the quartering hammer to on the support is located the outside of breaker body, maintain the operation to the quartering hammer again, compare in the inside at the breaker body and maintain the quartering hammer, maintenance operation space has been increased, make the maintenance quartering hammer more convenient, and the maintenance efficiency of quartering hammer has been improved.

Optionally, the quartering hammer including rotate connect in hammer block on the support with slide connect in a plurality of hammer teeth on the hammer block, it is a plurality of the hammer tooth is located the outside of hammer block is followed the rotation axis of hammer block is circumference and distributes, every the direction of sliding of hammer tooth all is on a parallel with the rotation axis setting of hammer block, every the hammer tooth is close to the tip of mounting hole all is provided with the stopper, the stopper is contradicted the lateral wall setting of hammer block, be provided with the retaining member on the stopper, the retaining member with hammer block threaded connection will the stopper support tightly in on the hammer block.

By adopting the technical scheme, after the breaking hammer moves to the outer side of the crusher body, the locking piece on the limiting block on the hammer tooth to be maintained is twisted to separate the locking piece from the hammer body, then the hammer tooth to be maintained is moved to separate the hammer tooth to be maintained from the hammer body, and then the hammer tooth to be maintained is maintained; and when the hammer tooth damages overweight, can directly change the hammer tooth, slide intact hammer tooth and block into the hammer block, thereby it is spacing to carry out the hammer tooth through the lateral wall that stopper conflict hammer block on the hammer tooth, twists reverse the retaining member on the stopper again, make the retaining member support the stopper tightly can accomplish the installation of hammer tooth on the lateral wall of hammer block for it is more convenient to install and change the hammer tooth.

Optionally, the inner wall of the accommodating cavity is provided with a mounting groove for the support card to be clamped, the mounting groove is close to the end part of the mounting hole to penetrate through the crusher body, the inner side wall of the mounting groove is provided with a sliding groove, the outer side wall of the support is provided with a sliding block, and the support passes through the sliding block and the sliding groove which are matched with each other to be connected in the mounting groove in a sliding manner.

Through adopting above-mentioned technical scheme, set up the spout, restricted the displacement range of support, reduced the support and slided the condition of deviating from the mounting groove for the stability that the support slided in the mounting groove is better.

Optionally, a through hole is formed in the outer side wall of the crusher body, the through hole is communicated with the sliding groove, a positioning block is arranged on the sliding block, the sliding block drives the positioning block to slide and be connected into the through hole and penetrate out of the through hole, a positioning piece is arranged on the outer side wall of the crusher body, and the positioning piece is positioned on the positioning block.

Through adopting above-mentioned technical scheme, when the removal support makes the quartering hammer remove to the outside of breaker body, the slider drives the locating piece and slides and connect in the through-hole and wear out the through-hole, and the rethread setting element is fixed a position the locating piece, can realize the location of support on the breaker body, has reduced the quartering hammer maintenance in-process, and the quartering hammer takes place to remove the condition that influences the maintenance operation for it is more convenient to maintain the quartering hammer.

Optionally, the end portion of the sliding block, away from the positioning block, is bent upwards to form a bent portion, the positioning element is hinged to the outer side wall of the crusher body, and the positioning element is clamped into the bent portion and abutted against the bent portion between the corresponding outer side walls of the crusher body.

Through adopting the above technical scheme, when the slider drives the locating piece and slides and wear out the through-hole, the through-hole is worn out to the kink correspondence, the setting element on the upset breaker body, make the setting element card go into between the corresponding lateral wall of kink and breaker body, when the slider on the support drives the locating piece and returns back, the locating piece drives the kink, this moment, setting element conflict kink, the trend that the kink returned is with setting element butt on the corresponding lateral wall of breaker body, thereby fix a position the kink, and then realize the location of support and quartering hammer, the condition that the support returned has been reduced, the location of support can be realized to the upset setting element, make the locating support more convenient.

Optionally, a positioning plate is arranged on the outer side wall of the crusher body and located below the positioning piece, and the positioning piece abuts against the positioning plate.

Through adopting above-mentioned technical scheme, when the locating piece upset card goes into between the corresponding lateral wall of kink and breaker body, the locating piece conflict locating plate realizes fixing a position, compares and fixes a position on the locating piece in the direct butt of locating piece, has reduced the setting element and has exerted the pressure on the locating piece, and then has reduced the locating piece because of the too big cracked condition that takes place of pressure for the locating piece is more durable.

Optionally, the door plant goes up and down to slide and has the holding ring, the setting element wears to establish the holding ring and contradicts the inner wall setting of holding ring.

By adopting the technical scheme, when the door plate is opened, the positioning ring is moved to separate from the positioning piece, and then the positioning piece is turned over to stagger the positioning piece and the door plate, so that the door plate can be opened; when the quartering hammer was maintained and was removed back and hold the intracavity, closed the door plant, removed the holding ring to the height that is higher than setting element length, then the upset setting element, made the setting element be located the below of holding ring, moved the holding ring towards the direction that is close to the setting element again, made the setting element wear to establish the inner wall of holding ring and conflict holding ring to realize the location of setting element, block the location of door plant and then realization door plant through the setting element, make the location door plant more convenient.

Optionally, the slider is rotatably connected with a roller, and the outer side wall of the roller abuts against the inner wall of the sliding groove.

Through adopting above-mentioned technical scheme, set up the gyro wheel, replace the roll between gyro wheel and the spout inner wall with the slip between slider and the spout inner wall, reduced the support and slided the in-process and the spout inner wall between the friction for it is more convenient that the support removes in the mounting groove.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the support and the door plate, when the breaking hammer needs to be maintained, the door plate is turned over and opened, the support is moved to enable the breaking hammer to be located on the outer side of the crusher body, and then the breaking hammer is maintained;

2. by arranging the hammer body, the hammer teeth and the limiting block, after the breaking hammer moves to the outer side of the crusher body, the locking part is twisted to be separated from the hammer body, the hammer teeth to be maintained are moved to be separated from the hammer body, and then the hammer teeth to be maintained are maintained, so that the hammer teeth are more convenient to maintain;

3. through setting up setting element, locating piece and kink, when the slider drove the locating piece and slides and wear out the through-hole, the through-hole was worn out to the kink correspondence, and the upset setting element makes its card go into the location that can realize support and quartering hammer between the corresponding lateral wall of kink and breaker body, has reduced the condition that the support rolled back for the locating support is more convenient.

Drawings

FIG. 1 is an overall schematic view of an embodiment of the present application;

fig. 2 is a structural diagram of the crusher body in a cut-away manner in part according to the embodiment of the present application, mainly showing the structure of the accommodating chamber;

fig. 3 is a structural diagram of the crusher body in a cut away manner, mainly showing the structure of the through hole;

FIG. 4 is a partial schematic structural view of an embodiment of the present application, mainly illustrating the structure of a demolition hammer;

fig. 5 is a structural diagram of the crusher body in the embodiment of the present application, partially cut away, and mainly shows the structure of the through hole;

fig. 6 is a schematic view of an opened state of the embodiment of the present application, which mainly shows a matching relationship between the positioning element and the bending portion.

Description of reference numerals: 1. a crusher body; 11. mounting holes; 12. an accommodating chamber; 121. mounting grooves; 1211. a chute; 13. a first driving member; 14. a through hole; 15. perforating; 2. a door panel; 21. a first plate body; 22. a second plate body; 3. a squeeze roller; 4. a support; 41. a slider; 411. a roller; 42. a handle; 43. a second driving member; 5. positioning blocks; 51. a bending section; 6. a positioning member; 7. positioning a plate; 8. a positioning ring; 9. a breaking hammer; 91. a hammer body; 92. hammer teeth; 921. a sliding part; 922. a connecting portion; 923. a hammering part; 9231. a hammer head; 10. a limiting block; 101. and a locking member.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a social source scrap steel crusher. Referring to fig. 1, social source scrap steel breaker includes breaker body 1, mounting hole 11 has been seted up on breaker body 1's the lateral wall, install door plant 2 on the lateral wall of breaker, door plant 2 includes first plate body 21 and second plate body 22, first plate body 21 and second plate body 22 all articulate on the lateral wall of breaker, first plate body 21 and second plate body 22 lie in mounting hole 11 respectively along the relative both sides of horizontal direction and lid and close mounting hole 11 setting, and first plate body 21 and second plate all overturn towards the outside of mounting hole 11.

Referring to fig. 1 and 2, a containing cavity 12 is formed in the crusher body 1, the containing cavity 12 is communicated with the mounting hole 11, the pressing roller 3 is rotatably connected in the containing cavity 12, and the rotation axis of the pressing roller 3 is perpendicular to the hinge axis of the first plate body 21. The crusher body 1 is fixed with a first driving member 13, the first driving member 13 is located at one end of the squeeze roller 3 along the rotation axis thereof, in this embodiment, the first driving member 13 is a motor, an output shaft of the first driving member 13 is fixedly connected with the rotation axis of the squeeze roller 3, and the first driving member 13 drives the squeeze roller 3 to rotate.

Referring to fig. 2 and 3, an installation groove 121 is formed in the inner wall of the accommodating cavity 12, the installation groove 121 is located below the installation hole 11, the length direction of the installation groove 121 is parallel to the rotation axis of the squeezing roller 3, and the end portion of the installation groove 121 close to the installation hole 11 penetrates through the crusher body 1. The mounting groove 121 is provided with sliding grooves 1211 on two opposite inner side walls along the length direction thereof, the length direction of the sliding grooves 1211 is parallel to the length direction of the mounting groove 121, and the sliding grooves 1211 on two opposite sides are aligned.

Referring to fig. 2 and 3, the accommodating cavity 12 is connected to the support 4 in a horizontally moving manner, the support 4 is located on one side of the squeezing roller 3 in the horizontal direction, the lower end of the support 4 is clamped into the mounting groove 121, two sliding blocks 41 are fixed on the outer side wall of the support 4, the two sliding blocks 41 are arranged in one-to-one correspondence with the two sliding grooves 1211 in the mounting groove 121, and each sliding block 41 is clamped into and slidably connected to the corresponding sliding groove 1211. The bracket 4 is slidably connected in the mounting groove 121 through the matching of the two sliding blocks 41 and the corresponding sliding grooves 1211, and the sliding direction of the bracket 4 is arranged towards or away from the mounting hole 11. A handle 42 is fixed on the outer side wall of the bracket 4 close to the mounting hole 11.

Referring to fig. 3 and 4, each sliding block 41 is rotatably connected with a plurality of rollers 411, the plurality of rollers 411 are located below the corresponding sliding block 41 and are uniformly distributed along the sliding direction of the bracket 4, the rotating axis of the roller 411 is perpendicular to the sliding direction of the bracket 4, and the outer side wall of the lower end of the roller 411 abuts against the inner wall of the corresponding sliding groove 1211.

Referring to fig. 5, a plurality of through holes 14 are formed on the outer side wall of the crusher body 1, and the through holes 14 are arranged in one-to-one correspondence with the sliding grooves 1211 and are communicated with the corresponding sliding grooves 1211. Each slider 41 is fixed with a positioning block 5, the positioning block 5 is located at one side of the corresponding slider 41 close to the mounting hole 11, and the end of the positioning block 5 away from the corresponding slider 41 is bent upwards to form a bent part 51. When the sliding block 41 moves in the corresponding sliding slot 1211, the sliding block 41 drives the upper positioning block 5 to slide and connect in the corresponding through hole 14, and drives the bending portion 51 of the positioning block 5 to penetrate through the corresponding through hole 14.

Referring to fig. 5 and 6, positioning members 6 are hinged to the outer side wall of the crusher body 1, the number of the positioning members 6 is set corresponding to the through holes 14, the positioning members 6 are located on one side of the corresponding through holes 14 far away from the other through hole 14, and the hinge axis of the positioning members 6 is set parallel to the sliding direction of the bracket 4. Still be fixed with locating plate 7 on the lateral wall of breaker body 1, locating plate 7 and setting element 6 one-to-one set up, and locating plate 7 is located the below that corresponds setting element 6 and is the level setting.

In practical use, when the bending portion 51 penetrates through the corresponding through hole 14, the corresponding positioning element 6 is turned over to be clamped between the bending portion 51 and the corresponding outer side wall of the crusher body 1, at this time, the positioning element 6 abuts against the upper end face of the corresponding positioning plate 7 to realize the positioning of the positioning block 5, and abuts against the end face of the bending portion 51 close to the sliding block 41 to realize the positioning of the positioning block 5.

Referring to fig. 5 and 6, the positioning rings 8 are respectively slidably and vertically arranged on the outer side walls of the first plate body 21 and the second plate body 22, the positions of the positioning rings 8 are arranged corresponding to the hinge axes of the positioning pieces 6, when the positioning rings 8 move to the highest point, the height between the positioning ring 8 and the corresponding positioning piece 6 is greater than the length of the corresponding positioning piece 6, and when the positioning rings 8 move to the lowest point, the height between the positioning ring 8 and the corresponding positioning piece 6 is less than the length of the corresponding positioning piece 6.

Referring to fig. 2 and 5, the breaking hammer 9 is arranged on the support 4, the breaking hammer 9 is located on one side of the support 4 far away from the mounting groove 121, the breaking hammer 9 comprises a hammer body 91 and a plurality of hammer teeth 92, the hammer body 91 is cylindrical and is rotatably connected to the support 4, and the rotation axis of the hammer body 91 is parallel to the rotation axis of the squeezing roller 3. The bracket 4 is further fixed with a second driving member 43, the second driving member 43 is located on one side of the hammer block 91 far away from the mounting hole 11, in this embodiment, the second driving member 43 is a motor, an output shaft of the second driving member 43 penetrates through the bracket 4 and is fixedly connected with a rotating shaft of the hammer block 91, and the second driving member 43 drives the hammer block 91 to rotate. The outer side wall of the crusher body 1 is provided with a through hole 15, the through hole 15 is arranged corresponding to the second driving piece 43 and communicated with the accommodating cavity 12, and the through hole 15 is used for extending the second driving piece 43.

Referring to fig. 4 and 5, the plurality of hammer teeth 92 are located outside the hammer block 91 and are circumferentially and uniformly distributed along the rotation axis of the hammer block 91. Every hammer tooth 92 all includes the portion 921 that slides, connecting portion 922 and the portion 923 of beating, and the portion 921 that slides is connected in the hammer block 91, and the direction of sliding of the portion 921 that slides is on a parallel with the axis of rotation setting of hammer block 91. The end portion of each sliding portion 921 close to the mounting hole 11 is fixed with a limiting block 10, the limiting block 10 is located on the outer side of the hammer body 91, and the end face of the limiting block 10 close to the sliding portion 921 abuts against the outer side wall of the hammer body 91. Retaining member 101 is all worn to be equipped with by two relative tip of every stopper 10, every retaining member 101 all with hammer block 91 threaded connection, and every retaining member 101 all will correspond stopper 10 through the screw-thread fit with hammer block 91 and support tightly on the lateral wall of hammer block 91. In this embodiment, the locking member 101 is a locking bolt.

Referring to fig. 4, connecting portion 922 is located the portion 921 that slides and keeps away from one side of hammer 91 rotation axis and with the portion 921 fixed connection that slides, connecting portion 922 wears to establish hammer 91 setting towards the direction of keeping away from hammer 91 rotation axis, beat portion 923 be located connecting portion 922 keep away from one side of the portion 921 that slides and with connecting portion 922 fixed connection, beat portion 923 be close to the lateral wall setting of the terminal surface conflict hammer 91 of connecting portion 922, it is fixed with a plurality of tups 9231 on the terminal surface of connecting portion 922 to beat portion 923, a plurality of tups 9231 are evenly distributed along the rotation axis of hammer 91.

The implementation principle of the social source steel scrap crusher in the embodiment of the application is as follows:

when the breaking hammer 9 needs to be maintained, the second driving part 43 is controlled to stop rotating the hammer body 91, the positioning rings 8 on the first plate body 21 and the second plate body 22 are moved to be separated from the corresponding positioning parts 6, the positioning parts 6 are turned to make the first plate body 21 and the second plate body 22 staggered with the corresponding positioning parts 6, then the first plate body 21 and the second plate body 22 are turned to be opened, the handle 42 on the support 4 is held to drive the support 4 to move towards the direction close to the mounting hole 11, the support 4 drives the breaking hammer 9 thereon to move to the outer side of the crusher body 1, at the moment, the sliding block 41 on the support 4 drives the positioning block 5 thereon to move, and drives the bending part 51 on the positioning block 5 to penetrate out of the corresponding through hole 14, then the corresponding positioning part 6 is turned to be clamped between the bending part 51 and the corresponding outer side wall of the crusher body 1, so as to realize the positioning of the support 4, and then the maintenance operation is carried out on the breaking hammer 9, compare and maintain quartering hammer 9 in the inside of breaker body 1, increased maintenance operation space for it is more convenient to maintain quartering hammer 9, and has improved the maintenance efficiency of quartering hammer 9.

After the maintenance of the breaking hammer 9 is completed, the positioning element 6 is turned over to be separated from the space between the bent part 51 and the corresponding outer side wall of the crusher body 1, the handle 42 on the support 4 is held to drive the support 4 to move towards the direction close to the accommodating cavity 12 until the support 4 moves back to the original position, the first plate body 21 and the second plate body 22 are closed, the positioning ring 8 on the first plate body 21 is moved to enable the positioning ring 8 to move to the highest point, the corresponding positioning element 6 is turned over again to enable the corresponding positioning element 6 to be located below the positioning ring 8, the positioning ring 8 is moved towards the direction close to the corresponding positioning element 6 to enable the corresponding positioning element 6 to penetrate through the positioning ring 8 and abut against the inner wall of the positioning ring 8, so that the corresponding positioning element 6 is positioned, the positioning element 6 corresponding to the second plate body 22 is positioned by performing the same operation on the positioning ring 8 and the corresponding positioning element 6 on the second plate body 22, and the first plate body 21 is clamped by the corresponding positioning element 6, the positioning element 6 corresponding to the second plate 22 locks the second plate 22, so that the first plate 21 and the second plate 22 can be positioned.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a social source scrap steel breaker, includes breaker body (1), be equipped with in breaker body (1) and hold chamber (12), it is connected with squeeze roll (3) to hold the chamber (12) internal rotation, be provided with first driving piece (13) on breaker body (1), first driving piece (13) drive squeeze roll (3) rotate its characterized in that: mounting hole (11) have been seted up on the lateral wall of breaker, mounting hole (11) with hold chamber (12) intercommunication, it closes to articulate on the lateral wall of breaker to have the lid door plant (2) of mounting hole (11), it is connected with support (4) to hold chamber (12) water smooth migration, the direction of sliding of support (4) is close to or keeps away from mounting hole (11) set up, it is connected with quartering hammer (9) to rotate on support (4), still be provided with second driving piece (43) on support (4), second driving piece (43) drive quartering hammer (9) rotate.

2. The social source scrap crusher according to claim 1, characterized in that: quartering hammer (9) including rotate connect in hammer block (91) on support (4) with slide connect in a plurality of hammer teeth (92) on hammer block (91), a plurality of hammer teeth (92) are located the outside of hammer block (91) is followed the axis of rotation of hammer block (91) is circumference and distributes, every the direction of sliding of hammer teeth (92) all is on a parallel with the axis of rotation setting of hammer block (91), every hammer teeth (92) are close to the tip of mounting hole (11) all is provided with stopper (10), stopper (10) are contradicted the lateral wall setting of hammer block (91), be provided with retaining member (101) on stopper (10), retaining member (101) with hammer block (91) threaded connection will stopper (10) support tightly in on hammer block (91).

3. The social source scrap crusher according to claim 2, characterized in that: offer the confession on the inner wall that holds chamber (12) mounting groove (121) that support (4) card was gone into, mounting groove (121) are close to the tip of mounting hole (11) runs through breaker body (1) sets up, spout (1211) have been seted up on the inside wall of mounting groove (121), be provided with slider (41) on the lateral wall of support (4), support (4) pass through slider (41) with the cooperation of spout (1211) slide connect in mounting groove (121).

4. The social source scrap crusher according to claim 3, characterized in that: through-hole (14) have been seted up on the lateral wall of breaker body (1), through-hole (14) with spout (1211) intercommunication, be provided with locating piece (5) on slider (41), slider (41) drive locating piece (5) slide connect in through-hole (14) and wear out through-hole (14) set up, be provided with setting element (6) on the lateral wall of breaker body (1), setting element (6) location locating piece (5).

5. The social source scrap crusher according to claim 4, characterized in that: locating piece (5) are kept away from the tip of slider (41) is upwards buckled and is formed with kink (51), setting element (6) articulate in on the lateral wall of breaker body (1), setting element (6) upset card is gone into kink (51) with between the corresponding lateral wall of breaker body (1) and contradict kink (51).

6. The social source scrap crusher according to claim 5, characterized in that: be provided with locating plate (7) on the lateral wall of breaker body (1), locating plate (7) are located the below of setting element (6), setting element (6) are contradicted locating plate (7) set up.

7. The social source scrap crusher according to claim 5, characterized in that: door plant (2) go up and down to slide and have holding ring (8), setting element (6) are worn to establish holding ring (8) and are contradicted the inner wall setting of holding ring (8).

8. The social source scrap crusher according to claim 3, characterized in that: the slider (41) is rotatably connected with a roller (411), and the outer side wall of the roller (411) abuts against the inner wall of the sliding groove (1211).

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