CN116752417A - Multi-hammer crusher - Google Patents

Abstract

The application relates to the field of pavement crushing equipment, in particular to a multi-hammer crusher, which comprises a crusher body and a dustproof assembly, wherein the dustproof assembly comprises a dustproof cover, the dustproof cover is arranged on one side, close to the ground, of a crusher body support, the dustproof cover comprises a top plate and side rings, the side rings are sleeved on the top plate to form a shell structure with an opening on one side, the side rings comprise a plurality of sliding rings, and the sliding rings are mutually sleeved and can mutually slide along the length direction of the side rings. The application has the effects of reducing dust emission and simultaneously facilitating overhauling of the hammer head of the crusher.

Description

Multi-hammer crusher

Technical Field

The application relates to the technical field of pavement crushing equipment, in particular to a multi-hammer crusher.

Background

The cement concrete pavement has high structural strength and less maintenance, and is widely applied to the field of road engineering. However, over time, the concrete pavement also has damages such as cracking and breaking, and when the concrete pavement is seriously damaged, the concrete pavement needs to be repaired. In the repairing process, the concrete pavement is firstly required to be crushed so as to facilitate the cleaning of the old pavement or the recycling of the old pavement materials.

The equipment commonly used in the concrete pavement crushing process is a multi-hammer crusher, and mainly comprises a bracket and a hammer head, wherein the bracket is arranged on an engineering vehicle. The tup sets up to a plurality of, and a plurality of tups evenly set up on the support to can follow vertical direction and slide. The hydraulic cylinder drives the hammer head to lift so as to realize the beating and crushing of the concrete pavement.

When the multi-hammer crusher works, the plurality of hammers continuously impact the road surface, so that dust emission is easy to occur, and the dust cover is usually fixedly connected below the bracket to prevent the dust from spreading. However, although the fixed dust cover solves the problem of dust emission to some extent, it causes inconvenience for the worker to overhaul the hammer head because the dust cover shields one end of the hammer head close to the ground.

Disclosure of Invention

The application provides a multi-hammer crusher for facilitating maintenance of a plurality of hammerheads by workers.

The application provides a multi-hammer crusher, which adopts the following technical scheme:

the utility model provides a many tups breaker, includes breaker body and dustproof subassembly, dustproof subassembly includes the dust cover, the dust cover is installed in the one side that is close to ground of breaker body support, the dust cover includes roof and side ring, side ring cover is established and is formed one side open-ended shell structure on the roof, side ring includes a plurality of slip rings, and a plurality of slip rings overlap each other and establish to can follow self length direction mutual slip.

Through adopting above-mentioned technical scheme, the dust cover is installed on the support of breaker body, establishes the tup cover of breaker body inside the dust cover to stop spreading of breaker working process dust, reduce the production of smoke and dust phenomenon. The side ring of the dust cover is composed of a plurality of sliding rings, and the sliding rings can slide mutually. When the sliding rings are separated from each other, the total length of the dust prevention Zhang Cehuan is increased, so that the hammer head of the crusher can be covered, and the effect of blocking dust from spreading is achieved. The sliding rings enable the sliding rings to be close to each other, so that the total length of the side rings is reduced, the hammer heads of the crusher are exposed outside the dust cover, and workers can observe and overhaul the hammer heads conveniently.

Optionally, a lifting plate is disposed on an inner side wall of the sliding ring on the outermost layer, and the sliding ring on the outermost layer is moved in a direction close to the top plate, so that the lifting plate can be abutted with the sliding ring on the inner layer.

Through adopting above-mentioned technical scheme, when needs observe and overhaul the tup of breaker, to the slip ring that is close to the direction of roof removal outer layer, when lifting the board and inner layer slip ring butt back, lift the board and can drive inner layer slip ring and remove to the direction that is close to the roof simultaneously, make things convenient for the staff to adjust the position of a plurality of slip rings.

Optionally, be provided with drive assembly on the roof, drive assembly includes rotation wheel and traction rope, rotation wheel rotates to be connected on the roof, traction rope one end is connected with rotation wheel, and the other end is connected in the intermediate position of the slip ring of outermost in the second direction.

Through adopting above-mentioned technical scheme, rotate the rotor, traction rope one end twines on the rotor, along with the shortening of traction rope length, drives the removal of outermost slip ring, and then realizes the shrink of dust cover side ring. And the traction rope is connected to the middle position of the sliding ring in the second direction, so that the uniformity of the stress of the sliding ring can be improved, and the stability of the sliding ring in the sliding process can be improved.

Optionally, the driving components are arranged in two groups, and the two driving components are arranged on two sides of the crusher body along the second direction.

By adopting the above-mentioned solution, the second direction here refers to a direction perpendicular to the direction of movement of the crusher when in operation and parallel to the ground, which is specifically described in the embodiments. The two groups of driving components apply force to the sliding ring from two sides of the sliding ring, so that the stress of the sliding ring is uniform, and the stability of the sliding ring in the moving process is improved.

Optionally, two sets of drive assembly's rotation wheel is coaxial to be set up, two be provided with the gangbar between the rotation wheel, the gangbar rotates to be connected on the roof, two the rotation wheel is installed on the gangbar, rotates the gangbar can drive two rotation wheels and rotate simultaneously.

Through adopting above-mentioned technical scheme, rotate the gangbar, drive and install two rotation wheels on the gangbar and rotate simultaneously, and then make two tractive ropes exert pulling force to the slip ring simultaneously, make things convenient for the staff to adjust two rotation wheels, make two tractive ropes exert force to the slip ring simultaneously, further improve the homogeneity of slip ring atress, improve the stability of slip ring slip in-process.

Optionally, be provided with the steering block on the roof, the steering block is located the intermediate position of slip ring in the second direction, turn to the last steering groove of seting up of steering block, the steering groove includes vertical portion and horizontal part, vertical portion is located the steering block and is close to on the side of slip ring, vertical portion opening is along the slip direction orientation slip ring of slip ring, horizontal portion is located the steering block and is close to on the side of rotating the wheel, the opening orientation of horizontal portion rotates the wheel, vertical portion and horizontal portion intercommunication each other, the stay cord passes vertical portion and horizontal portion in proper order.

Through adopting above-mentioned technical scheme, the in-process is worn to establish by the pulling rope, and first pulling portion one end is connected in the intermediate position of slip ring in the second direction, and the other end is vertical to be close to the orientation extension of turning to wear out in the vertical portion from the horizontal part, then connect on rotating wheel. When the rotating wheel rotates, the traction rope is wound on the rotating wheel, and one end of the traction rope, which is close to the sliding ring, applies a force parallel to the sliding direction of the sliding ring to the sliding ring, so that the sliding stability of the sliding ring is further improved, and the waste of acting can be reduced.

Optionally, be provided with the spacing subassembly that is used for carrying out spacingly to the rotation of gangbar on the gangbar, spacing subassembly includes slide bar and spacing post, it is provided with the mount pad to correspond the gangbar tip on the roof, the gangbar tip rotates to be connected on the mount pad, the slide bar is in along the length direction sliding connection of gangbar on the gangbar, spacing post connection is in slide bar one end, the spacing groove has been seted up on the mount pad, slides the slide bar can drive in the spacing post embedding spacing groove.

Through adopting above-mentioned technical scheme, rotate the gangbar, when the gangbar rotated to the assigned position, thereby the slip slide bar was the gag lever post embedding in the spacing groove carries out spacingly to the rotation of gangbar, blocks the gangbar and rotates, reduces the slip ring and takes place to the circumstances that is close to the direction of ground automatically under the effect of self gravity.

Optionally, the sliding rod is of a square rod-shaped structure, the central line of the sliding rod coincides with the central line of the linkage rod, and the limit column is a polygon prism.

Through adopting above-mentioned technical scheme, the slide bar is the direction shaft-like structure, can drive the gangbar and rotate when consequently rotating the slide bar. After the sliding rod rotates to a specific position, the sliding rod can be directly slid, so that the limiting column is embedded into the limiting groove, and the position of the sliding ring can be conveniently adjusted by a worker.

Optionally, the position that corresponds the slide bar on the gangbar is provided with the retaining member, the retaining member includes the elastic part, the elastic part is convex platelike structure, the elastic part opening deviates from the slide bar, the locking groove has been seted up to the last corresponding elastic part of slide bar, after spacing post embedding spacing groove, the retaining member embedding is in the locking groove.

Through adopting above-mentioned technical scheme, after the retaining member embedding locking inslot, the retaining member can be spacing to the slip of slide bar to a certain extent to improve spacing subassembly and to the spacing stability of rotation of gangbar. When the linkage rod is required to rotate, a force is applied to the sliding rod in a direction away from the sliding groove, and the elastic part has elasticity, so that when the force overcomes the elastic force of the elastic part, the elastic part is separated from the locking groove, and the limit of the sliding rod is canceled.

Optionally, the retaining member sets up a plurality ofly along slide bar circumference, the sliding tray corresponds the retaining member sets up a plurality ofly.

Through adopting above-mentioned technical scheme, a plurality of retaining members are spacing to the slide bar simultaneously, and the slide bar atress is even when improving the stability to the slide bar is spacing.

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

1. sliding the sliding rings to bring the sliding rings closer to each other. After a plurality of slip rings overlap each other, the holistic length of dust cover reduces to can make the weight of breaker expose in the outside, make things convenient for the staff to overhaul and observe the tup.

2. And the hand wheel is rotated, when the sliding ring moves to a proper position and the limiting column corresponds to the limiting groove, the sliding rod drives the limiting column to be embedded into the limiting groove, so that the sliding rod is limited, the linkage rod is blocked from rotating, and the stability of the dust cover in a contracted state is improved.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present application.

Fig. 2 is a schematic structural view of a first sliding ring according to an embodiment of the present application.

Fig. 3 is a schematic view of a dust cap according to an embodiment of the present application.

Fig. 4 is a schematic diagram of a driving assembly according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a limiting component according to an embodiment of the present application.

Fig. 6 is an enlarged view of a portion a of fig. 5 according to an embodiment of the present application.

Reference numerals: 1. a breaker body; 2. a dust-proof assembly; 21. a dust cover; 211. a top plate; 212. a side ring; 213. a first slip ring; 214. a second slip ring; 215. a third slip ring; 22. an exhaust pipe; 23. a dust collection device; 24. a rubber strip; 25. a lifting plate; 26. an inner baffle ring; 27. an outer baffle ring; 3. a drive assembly; 31. pulling the rope; 32. a rotating wheel; 33. a fixed block; 34. a mounting base; 4. a linkage rod; 5. a steering block; 51. a steering groove; 511. a vertical portion; 512. a horizontal portion; 513. a connection part; 6. a limit component; 61. a slide bar; 62. a limit column; 63. a locking member; 631. an elastic part; 632. a sliding part; 7. a positioning assembly; 71. a positioning rod; 72. and a reset piece.

Detailed Description

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

The embodiment of the application discloses a multi-hammer crusher.

Referring to fig. 1, a multi-hammerhead crusher comprises a crusher body 1 and a dust-proof assembly 2, the dust-proof assembly 2 comprising a dust-proof cover 21. The dust cover 21 is entirely of a case structure in which one side is provided with an opening, and the opening of the dust cover 21 faces the ground. The dust cover 21 comprises a top plate 211 and a side ring 212, wherein the top plate 211 is of a rectangular plate-shaped structure, and the top plate 211 is welded on one side, close to the ground, of the bracket of the crusher body 1 in parallel to the ground. The dust cover 21 is provided with a avoiding groove at a position close to the side surface far away from the ground and corresponding to the hammer head, so that the hammer head can pass through. The side ring 212 is sleeved outside the top plate 211 perpendicular to the ground, the side ring 212 is composed of a plurality of sliding rings, and the sliding rings are in sliding fit along the vertical direction. Thereby the dimension of the whole side ring 212 in the vertical direction can be lengthened or shortened, and the hammer head of the crusher body 1 can be exposed when the side ring 212 is shortened, thereby being convenient for the staff to observe or overhaul the state of the hammer head.

Referring to fig. 1, the dust-proof assembly 2 further includes an exhaust duct 22 and a dust-collecting device 23, and the dust-collecting device 23 is fixedly connected to the bracket of the crusher body 1 by screws. One end of the exhaust pipe 22 is connected with an air inlet of the dust collection device 23, the other end of the exhaust pipe is connected to the side surface of the top plate 211 far away from the ground, an exhaust hole is formed in the position, corresponding to the exhaust pipe 22, of the top plate 211, and the exhaust pipe 22 is communicated with the inside of the dust cover 21 through the exhaust hole. The dust collection device 23 is used for extracting dust in the dust cover 21 and collecting the dust. The dust collection device 23 in this embodiment is a dust collector.

Referring to fig. 1, 2 and 3, three sliding rings are provided in this embodiment, and for convenience of description, three sliding rings are defined as a first sliding ring 213, a second sliding ring 214 and a third sliding ring 215, respectively. The first sliding ring 213 is sleeved outside the top plate 211, and the side surface of the first sliding ring 213 away from the ground is flush with the side surface of the top plate 211 away from the ground. The second sliding ring 214 is slidably sleeved outside the first sliding ring 213, and the third sliding ring 215 is sleeved outside the second sliding ring 214. And so on, the sliding connection among a plurality of sliding rings is realized.

Referring to fig. 1, 2 and 3, the first slide ring 213 and the second slide ring 214 are each provided with an inner stopper ring 26 and an outer stopper ring 27. Here, the first sliding ring 213 is exemplified, and the inner retainer ring 26 has a ring-shaped structure, and the inner retainer ring 26 is disposed outside the first sliding ring 213. The side surface of the inner baffle ring 26 far away from the ground is flush with the side surface of the first sliding ring 213 far away from the ground, and the outer side wall of the inner baffle ring 26 is attached to and welded with the inner side wall of the first sliding ring 213. The side surface of the inner baffle ring 26 close to the ground is abutted against the side surface of the top plate 211 far from the ground, so that the first sliding ring 213 is hung on the top plate 211, and the connection between the first sliding ring 213 and the top plate 211 is realized. The outer baffle ring 27 is sleeved outside the first sliding ring 213, and the outer baffle ring 27 is positioned on the first sliding ring 213 close to the ground.

Referring to fig. 1, 2 and 3, the positions of the inner and outer check rings 26 and 27 on the second slide ring 214 refer to the first slide ring 213. The third sliding ring 215 is different from the second sliding ring 214 in that the third sliding ring 215 is the most dug sliding ring, so the outer baffle ring 27 is not arranged on the third sliding ring 215. The side surface of the inner baffle ring 26 on the second sliding ring 214, which is close to the ground, is abutted with the side surface of the outer baffle ring 27 on the first sliding ring 213, which is far away from the ground, so that the second sliding ring 214 is prevented from being separated from the first sliding ring 213, and the connection between the second sliding ring 214 and the first sliding ring 213 is realized.

Referring to fig. 1, 2 and 3, a plurality of rubber strips 24 are provided on the sliding ring of the outermost layer, i.e., on the side of the third sliding ring 215 near the ground. The plurality of rubber strips 24 are arranged at regular intervals in the circumferential direction of the third sliding ring 215, and the two sides of the adjacent two rubber strips 24 which are close to each other are flush. The dust cover 21 can be adapted to dust prevention on uneven road surfaces by utilizing the soft characteristic of the rubber strip 24.

Referring to fig. 1, 2 and 3, the lifting plate 25 is provided on the outermost slide ring, in this embodiment, the third slide ring 215. One end of the lifting plate 25 is vertically welded to the inner side wall of the third sliding ring 215. The third slide ring 215 is slid in a direction away from the ground surface, so that the lift plate 25 can be brought into contact with the side surface of the second slide ring 214, which is closer to the ground surface. At this time, the third sliding ring 215 is continuously moved in a direction away from the ground, and the third sliding ring 215 drives the second sliding ring 214 to move upwards under the action of the lifting plate 25, so as to realize the shrinkage of the dust cover 21 (in this embodiment, the shrinkage of the dust cover 21 refers to the process of reducing the length of the side ring 212 of the dust cover 21), and so on, so as to realize the sliding of the outermost sliding ring (in this embodiment, the third sliding ring 215) to drive the plurality of inner sliding rings to move.

Referring to fig. 3 and 4, a driving assembly 3 is disposed on the top plate 211, and the driving assembly 3 is used for driving the outermost sliding ring to move upwards, that is, driving the third sliding ring 215 to move upwards, so as to retract the dust cover 21. The driving assembly 3 includes a pulling rope 31 and a rotating wheel 32, and the rotating wheel 32 is rotatably connected to the top plate 211. For convenience of description, the advancing direction of the crusher body 1 when in operation is defined as a first direction, and the direction perpendicular to the first direction and parallel to the ground is defined as a second direction. The third sliding ring 215 is welded with a fixing block 33 on a side surface parallel to the first direction, and the fixing block 33 is positioned at a middle position of the third sliding ring 215 in the first direction. One end of the pulling rope 31 is adhered to the side surface of the rotating wheel 32, and the other end is adhered to the fixed block 33. Rotating the rotating wheel 32 can cause the pulling rope 31 to be wound on the rotating wheel 32, thereby driving the third sliding ring 215 to move.

Referring to fig. 3 and 4, in order to improve stability during movement of the third slip ring 215, the driving assemblies 3 are arranged in two groups, and two driving assemblies 3 are respectively arranged at both sides of the crusher body 1 in the second direction. The traction ropes 31 of the two groups of driving assemblies 3 apply force to the third sliding ring 215 from two sides of the third sliding ring 215, so that the third sliding ring 215 is stressed uniformly, and the stability of the third sliding ring 215 in the moving process is improved.

Referring to fig. 3 and 4, a link lever 4 is provided on the top plate 211, the link lever 4 has a cylindrical rod-like structure, and a length direction of the link lever 4 is parallel to the second direction. The linkage rod 4 is arranged on one side of the frame of the crusher body 1 in a first direction. Both sides of the length direction of the linkage rod 4 are provided with mounting seats 34, and both ends of the linkage rod 4 are respectively connected to the mounting seats 34 in a rotating way. The rotating wheels 32 of the two groups of driving assemblies 3 are coaxially welded on the linkage rod 4, and the rotation linkage rod 4 can drive the two rotating wheels 32 to rotate simultaneously, so that the rotation of the two rotating wheels 32 is convenient for a worker to adjust simultaneously.

Referring to fig. 3 and 4, since the rotating wheel 32 is not located directly above the fixed block 33, when the rotating wheel 32 rotates, the force applied to the fixed block 33 by the pulling rope 31 may be inclined, resulting in a phenomenon in which the friction between the third sliding ring 215 and the second sliding ring 214 increases. In order to reduce the occurrence of the above, the top plate 211 is provided with a turning block 5, and the turning block 5 is located directly above the fixed block 33. The fixed block 33 is provided with a steering groove 51, and the steering groove 51 includes a vertical portion 511, a horizontal portion 512, and a connection portion 513. The vertical portion 511, the horizontal portion 512, and the connection portion 513 are cylindrical grooves. The vertical portion 511 is formed on a side surface of the fixed block 33 close to the ground, and an opening of the vertical portion 511 faces the fixed block 33. The horizontal portion 512 is formed on a side surface of the fixed block 33 adjacent to the rotating wheel 32, and an opening of the horizontal portion 512 faces the rotating wheel 32. The connection part 513 is located inside the fixing block 33, the length direction of the connection part 513 is parallel to the second direction, and both ends of the connection part 513 communicate with the vertical part 511 and the horizontal part 512, respectively.

Referring to fig. 3 and 4, the pulling rope 31 has one end connected to the fixed block 33 and the other end sequentially passing through the vertical portion 511, the connection portion 513, and the horizontal portion 512 and then connected to the rotating wheel 32. Under the action of the steering groove 51, the pulling rope 31 can be divided into a first pulling part, a second pulling part and a third pulling part corresponding to the three parts of the steering groove 51. The first pulling portion is vertically disposed, and one end is adhered to the fixing block 33 and the other end is inserted into the vertical portion 511. The third pulling part is disposed parallel to the second direction, and one end is adhered to the rotating wheel 32 and the other end is inserted into the horizontal part 512. The second drawing portion is disposed parallel to the connection portion 513, and both ends of the second drawing portion are connected to the first drawing portion and the third drawing portion, respectively. When the rotating wheel 32 is rotated, one end of the pulling rope 31 is wound around the rotating wheel 32. The driving vertical portion 511 applies a force parallel to the sliding direction of the third sliding ring 215 to the fixed block 33.

Referring to fig. 5 and 6, in order to improve stability in the contracted state of the dust cover 21, the link lever 4 is provided with a stopper assembly 6, and the stopper assembly 6 includes a slide lever 61 and a stopper post 62. The slide bar 61 is a square bar-shaped structure, and the center line of the slide bar 61 (center line in this embodiment means a line parallel to the longitudinal direction of the slide bar 61 in the bar-shaped structure and passing through the midpoint of the cross section of the slide bar 61 in parallel perpendicular to the longitudinal direction thereof, the center line being represented as an axis in the cylindrical structure) coincides with the axis of the link bar 4. The sliding groove is formed in the linkage rod 4 at a position corresponding to the sliding rod 61, and the sliding rod 61 is slidably matched in the sliding groove along the length direction of the linkage rod 4. The limit post 62 is a polygonal prism structure, one end of the limit post 62 is welded at the end of the limit rod, and the other end extends along the length direction of the sliding rod 61 in a direction away from the sliding rod 61. The center line of the limiting post 62 coincides with the center line of the sliding rod, a limiting groove is formed in the mounting seat 34 close to the limiting post 62, the sliding rod 61 can enable the limiting post 62 to be embedded into the limiting groove, the sliding rod 61 is prevented from rotating, the linkage rod 4 is further prevented from rotating, and stability of the dust cover 21 during shrinkage is improved. In this embodiment, the polygon prism is an eight prism, and the limit angle of the limit post 62 can be reduced by increasing the number of edges of the polygon prism (the polygon prism needs to rotate by a specific angle to enable the polygon prism to correspond to the limit groove again in the limit process of the sliding rod 61, that is, the polygon prism can be embedded into the limit groove.

Referring to fig. 5 and 6, the limiting assembly 6 further includes a locking member 63 for limiting the sliding of the sliding rod 61, and the locking member 63 includes an elastic portion 631 and a sliding portion 632. The sliding portions 632 are rectangular sheet-like structures, the number of the sliding portions 632 is two, the two sliding portions 632 are provided on the side wall of the sliding groove at intervals along the length direction of the stopper rod, and the sliding portions 632 can slide along the length direction of the sliding rod 61. The elastic portion 631 has an arc plate-like structure, both ends of the elastic portion 631 are welded to side surfaces of the two sliding portions 632 that are close to each other, respectively, and an opening of the elastic portion 631 faces away from the sliding lever 61. A locking groove is provided on the slide rod 61 at a position corresponding to the arc-shaped portion. When the polygon prism is embedded in the limit groove, the arc-shaped part is positioned in the locking groove, and the side surface of the arc-shaped part is attached to the side surface of the locking groove. Thereby can carry out spacingly to the slip of locking groove in the removal degree, reduce the condition emergence that breaks away from the spacing inslot after spacing post 62 embedding spacing groove, improve spacing post 62 to the spacing stability of rotation of slide bar 61.

Referring to fig. 5 and 6, when it is necessary to cancel the restriction of the slide bar 61, the worker applies a force to the slide bar 61 to move the slide bar 61 in a direction away from the restriction groove. By the arc surface of the elastic portion 631, both ends of the elastic portion 631 slide in a direction away from each other, so that the elastic portion 631 as a whole moves in a direction away from the slide lever 61 until the elastic portion 631 is disengaged from the locking groove. After the elastic portion 631 is separated from the locking member 63, the slide rod 61 can slide along its length direction, so that the stopper post 62 is separated from the stopper groove.

Referring to fig. 5 and 6, in order to improve the stability of the slide limit of the lock piece 63 to the slide rod 61, the lock piece 63 may be provided in plurality, two in this embodiment, along the circumference of the slide rod 61.

Referring to fig. 5 and 6, a rotation hole is formed in the mounting seat 34 far from the limit post 62 and corresponds to the linkage rod 4, and one end of the linkage rod 4 passes through the rotation hole and is matched with and in the rotation hole. The side wall of the rotation hole is provided with a positioning component 7 for assisting a worker in identifying the rotation position of the linkage rod 4. The positioning assembly 7 includes a positioning rod 71 and a reset member 72. The side wall of the rotating hole is provided with a sliding groove, and the positioning rod 71 is radially and slidably connected in the sliding groove along the linkage rod 4. The reset member 72 is located inside the sliding groove and is used for keeping the movement trend of the positioning rod 71 towards the direction close to the linkage rod 4, in this embodiment, the reset member 72 is a compression spring, one end of the compression spring is welded with the side surface of the sliding groove away from the linkage rod 4, and the other end of the compression spring is welded with the side surface of the positioning rod 71 away from the linkage rod 4. One end of the positioning rod 71, which is close to the linkage rod 4, is provided with a hemispherical surface, a plurality of positioning grooves are formed in the linkage rod 4 along the circumferential direction of the positioning rod, and the number of the positioning grooves is the same as the number of the side surfaces of the limiting column 62, which are parallel to the length of the positioning rod.

Referring to fig. 5 and 6, the link lever 4 is rotated, and when the positioning groove corresponds to the end of the positioning lever 71, the reset member 72 drives the positioning lever 71 to move so that the hemispherical surface is embedded in the positioning groove. The position of the limit post 62 corresponds to the limit groove, that is, the limit post 62 of the sliding rod 61 can be embedded into the limit groove. At this time, the linkage rod 4 continues to rotate, the positioning rod 71 can be separated from the positioning groove under the action of the hemispherical surface, and the linkage rod 4 receives a certain reaction force in the process of separating the positioning rod 71 from the positioning groove, so that the reaction force is fed back to the staff, and the staff can conveniently find the position of the limiting column 62 corresponding to the limiting groove.

Referring to fig. 5 and 6, a hand wheel is provided at a side of the slide rod 61 remote from the limit post 62, and one end of the slide rod 61 remote from the limit post 62 extends to the outside of the link rod 4 and is welded with the hand wheel. Thereby facilitating the operator to rotate the slide bar 61. Rotating the sliding rod 61 can drive the linkage rod 4 to rotate, and then drive the third sliding ring 215 to move, so as to realize the shrinkage of the dust cover 21.

The implementation principle of the multi-hammer crusher provided by the embodiment of the application is as follows: when the crusher body 1 is in a working state, the inner baffle ring 26 on the second sliding ring 214 abuts against the outer baffle ring 27 of the first sliding ring 213. The inner stop ring 26 of the third slide ring 215 abuts the outer stop ring 27 of the second slide ring 214. And the rubber strip 24 mounted on the third sliding ring 215 is now in contact with the road surface. Thereby establish the tup cover of breaker body 1 inside dust cover 21, dust extraction 23 operation simultaneously, the air that has the dust in the dust cover 21 doped with, the phenomenon of dust appears in the broken road surface in-process of reduction breaker. When the hammer head of the crusher needs to be maintained, the hand wheel is rotated to drive the sliding rod 61 to rotate. The sliding rod 61 rotates to drive the linkage rod 4 to rotate, the linkage rod 4 rotates to drive the two rotating wheels 32 to rotate, and one end of the traction rope 31 is wound on the rotating wheels 32. The pulling rope 31 applies a vertically upward force to the third sliding ring 215 during the winding of the pulling rope 31, thereby moving the third sliding ring 215 upward. Along with the movement of the third sliding ring 215, after the lifting plate 25 abuts against the side surface of the second sliding ring 214, which is close to the ground, the lifting plate 25 drives the second sliding ring 214 to move upwards, so as to realize the shrinkage of the dust cover 21. At this time, the sliding rod 61 is moved to enable the limiting post 62 to be embedded in the limiting groove, so that the limiting of the linkage rod 4 is realized. After the dust cover 21 is contracted, the hammer heads of the crusher body 1 are exposed to the outside, so that the hammer heads of the crusher are convenient for workers to observe and overhaul.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. The utility model provides a many tups breaker, includes breaker body (1) and dustproof subassembly (2), its characterized in that: the dustproof assembly (2) comprises a dustproof cover (21), the dustproof cover (21) is arranged on one side, close to the ground, of a support of the crusher body (1), the dustproof cover (21) comprises a top plate (211) and side rings (212), the side rings (212) are sleeved on the top plate (211) to form a shell structure with one side open, the side rings (212) comprise a plurality of sliding rings, and the sliding rings are mutually sleeved and can mutually slide along the length direction of the side rings.

2. A multi-hammerhead crusher as claimed in claim 1, wherein: the inner side wall of the sliding ring on the outermost layer is provided with a lifting plate (25), and the sliding ring on the outermost layer can be abutted with the lifting plate (25) by moving the sliding ring on the inner layer in the direction of approaching the top plate (211).

3. A multi-hammerhead crusher as claimed in claim 2, wherein: the novel sliding ring is characterized in that a driving assembly (3) is arranged on the top plate (211), the driving assembly (3) comprises a rotating wheel (32) and a traction rope (31), the rotating wheel (32) is rotationally connected to the top plate (211), one end of the traction rope (31) is connected with the rotating wheel (32), and the other end of the traction rope is connected to the middle position of the outermost sliding ring in the second direction.

4. A multi-hammerhead crusher as claimed in claim 3, wherein: the two driving assemblies (3) are arranged in two groups, and the two driving assemblies (3) are arranged on two sides of the crusher body (1) along the second direction.

5. The multi-hammerhead crusher as claimed in claim 4, wherein: the two sets of rotation wheels (32) of the driving assembly (3) are coaxially arranged, a linkage rod (4) is arranged between the two rotation wheels (32), the linkage rod (4) is rotationally connected to the top plate (211), the two rotation wheels (32) are arranged on the linkage rod (4), and the linkage rod (4) can drive the two rotation wheels (32) to rotate simultaneously.

6. A multi-hammerhead crusher as claimed in claim 5, wherein: be provided with on roof (211) and turn to piece (5), turn to piece (5) and be located the intermediate position of slip ring on the second direction, turn to and offer on piece (5) turn to groove (51), turn to groove (51) and include vertical portion (511) and horizontal portion (512), vertical portion (511) are located and turn to piece (5) and be close to the side of slip ring, vertical portion (511) opening is towards the slip ring along the slip direction of slip ring, horizontal portion (512) are located and turn to piece (5) and be close to the side of rotating wheel (32), the opening of horizontal portion (512) is towards rotating wheel (32), vertical portion (511) and horizontal portion (512) communicate each other, traction rope (31) pass vertical portion (511) and horizontal portion (512) in proper order.

7. A multi-hammerhead crusher according to claim 5 or 6, characterized in that: be provided with on gangbar (4) and be used for carrying out spacing subassembly (6) to the rotation of gangbar (4), spacing subassembly (6) are including slide bar (61) and spacing post (62), correspondence gangbar (4) tip is provided with mount pad (34) on roof (211), gangbar (4) tip rotates to be connected on mount pad (34), slide bar (61) are in along length direction sliding connection of gangbar (4) on gangbar (4), spacing post (62) are connected slide bar (61) one end, set up the spacing groove on mount pad (34), slide bar (61) can drive in spacing post (62) embedding spacing groove.

8. A multi-hammerhead crusher as claimed in claim 7, wherein: the sliding rod (61) is of a square rod-shaped structure, the central line of the sliding rod (61) coincides with the central line of the linkage rod (4), and the limiting column (62) is a polygonal column.

9. A multi-hammerhead crusher as claimed in claim 8, wherein: the locking piece (63) is arranged at the position, corresponding to the sliding rod (61), on the linkage rod (4), the locking piece (63) comprises an elastic part (631), the elastic part (631) is of a circular arc-shaped plate-shaped structure, an opening of the elastic part (631) is away from the sliding rod (61), a locking groove is formed in the sliding rod (61) corresponding to the elastic part (631), and after the limiting column (62) is embedded into the limiting groove, the locking piece (63) is embedded into the locking groove.

10. A multi-hammerhead crusher as claimed in claim 9, wherein: the locking pieces (63) are circumferentially arranged along the sliding rod (61), and the sliding grooves are correspondingly arranged on the locking pieces (63).