CN116943804A - Concrete reducing mechanism - Google Patents

Abstract

The invention belongs to the technical field of crushers, in particular to a concrete crushing device which comprises a box body; the top of the box body is fixedly connected with a box cover through screws; a feeding plate is hinged to one side of the top of the box cover; the hammer head is controlled to slide outwards through centrifugal force and is knocked on waste concrete to decompose, when concrete materials and the hammer head are blocked on the side wall of the box body, the rotor is rotated clockwise to enable the hammer head moving on the rotor to shrink inwards, then a certain gap can be separated from the waste concrete, and then the rotor is rotated anticlockwise to enable the hammer head to continuously knock on the waste concrete, so that the waste concrete is crushed, the inclined sliding chute is utilized, the rotating direction of the rotor can be changed to enable the hammer head to generate centrifugal force in different directions, the hammer head moves on the rotor to generate position difference, the concrete and the hammer head can be prevented from being blocked by utilizing the generated position difference, shutdown and manual crushing links are avoided, and the crushing efficiency of the crusher can be improved.

Description

Concrete reducing mechanism

Technical Field

The invention belongs to the technical field of crushers, and particularly relates to a concrete crushing device.

Background

Along with the acceleration of the urban process, the buildings in the city are erected, and along with the increase of the service life of the buildings, the old buildings need to be dismantled and rebuilt, the waste of the waste concrete materials after the old buildings are dismantled and rebuilt is serious, and based on the waste concrete materials, the problem of waste concrete waste is solved by adopting concrete recycling at present;

the recycling of the waste concrete materials requires crushing by using crushing equipment, and the large concrete materials are crushed into usable concrete powder, so that the concrete powder can be reused, and the crushing equipment on the market at present comprises a jaw crusher, a cone crusher, an impact crusher and a hammer crusher; a hammer crusher is generally adopted, which is more common and durable; the hammer crusher mainly uses impact energy to complete the operation of crushing materials. When the hammer crusher works, the motor drives the rotor to rotate at a high speed, materials uniformly enter the crusher cavity, the hammer heads rotating at a high speed impact and shear the torn materials to cause the materials to be crushed, meanwhile, the gravity of the materials self causes the materials to be flushed from the hammer heads rotating at a high speed to the baffle plates and the screen bars in the frame body, and the materials with the size larger than the screen holes are blocked on the screen plate and continuously beaten and ground by the hammer until the materials are crushed to the required discharging granularity, and finally the materials are discharged out of the crusher through the screen plate.

When the hammer crusher on the market works, a large amount of waste concrete materials are poured into the box body, the situation that the concrete materials and the hammer heads are blocked in the box body cannot be avoided because the concrete materials are different in shape after being removed, and when the situation that the hammer heads are blocked with the box body occurs, the hammer heads need to be stopped for maintenance, and the blocked concrete materials are separated from the hammer heads through the breaking hammer, so that the crusher equipment is long in stop time and low in processing efficiency.

To this end, the invention provides a concrete pulverizing apparatus.

Disclosure of Invention

In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.

The technical scheme adopted for solving the technical problems is as follows: the invention relates to a concrete crushing device, which comprises a box body; the top of the box body is fixedly connected with a box cover through screws; a feeding plate is hinged to one side of the top of the box cover; a front lining plate module is fixedly connected to one side of the top of the box body adjacent to the box cover; a material guide module is fixedly connected to the other side of the top of the box body adjacent to the box body; the front lining plate module and the material guide module are fixedly connected with the box cover and the box body through screws; the top of the box body is rotatably connected with a first rotating shaft through a bearing; the middle part of the first rotating shaft is fixedly connected with a rotor assembly; the rotor assembly is used for crushing concrete; the rotor assembly comprises a rotor and a hammer; the rotor is fixedly connected to the first rotating shaft; the rotor is provided with an inclined chute; the hammer head is movably connected in the inclined chute; the inside of the box body is fixedly connected with a sieve plate module corresponding to the rotor assembly; the oblique sliding groove is connected with a swinging sliding block in a sliding way, and the swinging sliding block is hinged with the hammer head through a rotor shaft; the middle part of the swing sliding block is radially provided with a through hole along the inclined sliding groove; and a movable hammer is connected in the through hole in a penetrating way.

Preferably, the end part of the first rotating shaft is fixedly connected with a guide wheel; the guide wheel is positioned outside the box body; the plurality of rotors are arranged and are coaxially and fixedly connected on the first rotating shaft; and a plurality of hammerheads which are arranged in a ring-shaped array are movably connected to the rotors.

Preferably, the two ends in the oblique sliding groove are fixedly connected with reset springs, one end of each reset spring is fixedly connected with the end part of the oblique sliding groove, and the other end of each reset spring is fixedly connected with the side wall of the swinging sliding block.

Preferably, two movable hammers are arranged, and the centers of the two movable hammers are symmetrically arranged; the movable hammer comprises a ball end and a connecting rod, and the ball end is fixedly connected with two ends of the connecting rod; the connecting rods are sleeved in the two reset springs, and two ends of each connecting rod penetrate through the side wall of the rotor; the ball end is located outside the rotor.

Preferably, one side of the top of the box cover is hinged with a feeding plate, and a plurality of vertebral bodies are fixedly connected to the surface of the feeding plate; the inside sliding connection of case lid has the guide board, and guide board offsets with the charge plate.

Preferably, the material guiding module comprises a rear cover plate; the rear cover plate is fixedly connected to the box cover and the box body through screws; the middle part of the rear cover plate is rotationally connected with a second rotating shaft, and guide blades are fixedly connected on the second rotating shaft; the guide vane is movably connected in the rear cover plate.

Preferably, the front lining plate module comprises a fixing frame; the bottom of the fixing frame is fixedly connected with a front lining plate body; the outside of the front lining plate body is fixedly connected with a plurality of reinforcing ribs which are equidistantly arranged; the front liner body is disposed adjacent to the rotor assembly.

Preferably, the screen plate module comprises a fixed plate; the fixing plate is fixedly connected in the box body through a screw, and a bent sieve plate and a transverse sieve plate are fixedly connected on the fixing plate; the adjacent surfaces of the bent sieve plates and the transverse sieve plates are propped against each other; the sieve plate module is arranged at the bottom of the rotor assembly.

Preferably, a rear lining plate module is arranged at one end, corresponding to the transverse sieve plate, in the box body; the rear lining plate module comprises a rear lining plate body; a reaction plate is fixedly connected to one side, adjacent to the rotor assembly, of the rear lining plate body; the middle part of the rear lining plate body is hinged in the box body, and one side of the rear lining plate body, which is far away from the rotor assembly, is hinged with a connecting shaft; the connecting shaft penetrates through the box body.

Preferably, the guide plate is arranged in a J-shaped structure, and a round corner is arranged at the bottom of the guide plate adjacent to one end of the movable hammer.

The beneficial effects of the invention are as follows:

1. according to the concrete crushing device, the hammer heads are controlled to slide outwards through centrifugal force and are knocked on the waste concrete to be decomposed, when concrete materials and the hammer heads are blocked on the side wall of the box body, the rotor is rotated clockwise, so that the hammer heads moving on the rotor can shrink inwards, then can be separated from the waste concrete by a certain gap, then the rotor is rotated anticlockwise, the hammer heads are continuously knocked on the waste concrete to crush the waste concrete, the rotation direction of the rotor is changed by utilizing the inclined sliding groove, the hammer heads generate centrifugal forces in different directions and then move on the rotor to generate position differences, the concrete and the hammer heads can be prevented from being blocked by utilizing the generated position differences, shutdown and manual crushing links are avoided, and the crushing efficiency of the crusher can be improved.

2. According to the concrete crushing device, the follow-up movable hammer is arranged in the inclined chute, when the rotor generates inclined acceleration, the movable hammer sliding in the through hole can also slide in the inclined chute along with the rotor, the two ends of the movable hammer can extend outwards and shrink inwards to generate sliding action, and the movable hammer can assist the hammer head to strike the waste concrete when contacting the waste concrete, so that the waste concrete is crushed, and for the concrete which is difficult to crush once, the hammer head and the movable hammer can strike for multiple times in a short time, so that the quick decomposition of the concrete which is difficult to crush is accelerated.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a perspective view of a first embodiment of the present invention;

fig. 2 is an exploded perspective view of a first embodiment of the present invention;

FIG. 3 is a top view of a first embodiment of the invention;

FIG. 4 is a cross-sectional view of a first embodiment of the invention in AA;

FIG. 5 is a partial exploded perspective view of a first embodiment of the present invention;

FIG. 6 is a perspective view of a rotor assembly according to a first embodiment of the present invention;

FIG. 7 is a perspective view of a rotor and hammer head according to one embodiment of the present invention;

fig. 8 is a perspective view of a cover of the first embodiment of the present invention;

FIG. 9 is a perspective view of a material guiding module according to an embodiment of the invention;

fig. 10 is a perspective view of a screen module according to a second embodiment of the invention

In the figure: 1. a case; 11. a case cover; 12. a feed plate; 13. a guide plate; 2. a front lining board module; 21. a fixing frame; 22. reinforcing ribs; 23. a front liner body; 3. a material guiding module; 31. a back cover plate; 32. a second rotating shaft; 33. a guide vane; 41. a guide wheel; 42. a first rotating shaft; 51. a fixing plate; 52. bending the screen plate; 53. a transverse screen plate; 54. a slide bar; 55. a second spring; 61. a rear liner body; 62. a counterattack plate; 63. a connecting shaft; 71. a rotor; 72. a hammer head; 73. a movable hammer; 74. a rotor shaft; 75. an inclined chute; 76. swinging the sliding block; 77. and a return spring.

Detailed Description

The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

Example 1

As shown in fig. 1, 2 and 6, a concrete pulverizing apparatus according to an embodiment of the present invention includes a case 1; the top of the box body 1 is fixedly connected with a box cover 11 through screws; a feeding plate 12 is hinged to one side of the top of the box cover 11; a front lining plate module 2 is fixedly connected to one side of the top of the box body 1 adjacent to the box cover 11; the other side of the top of the box body 1 is fixedly connected with a material guide module 3 adjacent to the box body 1; the front lining plate module 2 and the material guide module 3 are fixedly connected with the box cover 11 and the box body 1 through screws; the top of the box body 1 is rotatably connected with a first rotating shaft 42 through a bearing; a rotor assembly is fixedly connected to the middle part of the first rotating shaft 42; the rotor assembly is used for crushing concrete; the rotor assembly comprises a rotor 71 and a hammer 72; the rotor 71 is fixedly connected to the first rotating shaft 42; the rotor 71 is provided with an inclined chute 75; the hammer head 72 is movably connected in the inclined chute 75; the inside of the box body 1 is fixedly connected with a sieve plate module corresponding to the rotor assembly. When the waste concrete material is crushed, the existing waste concrete is of a special-shaped structure, so that the problem of blocking of special-shaped concrete and crushing equipment is fully considered for crushing the waste concrete, in the existing hammer crusher, the hammer crusher mainly uses the hammer heads 72 rotating at high speed to strike and crush the waste concrete poured into the box body 1, so that the condition that the hammer heads 72 are blocked with the special-shaped concrete on the side wall of the box body 1 is easy to occur, at the moment, because a plurality of hammer heads 72 are coaxial, after one hammer head 72 is blocked, the hammer heads 72 cannot continuously rotate, so that manual intervention, namely shutdown and manual blocking of the blocked concrete material by adopting a breaking hammer are required, the crushing efficiency of the crusher is reduced, in the device, when the waste concrete is poured into the box body 1, the feeding plate 12 is used for playing a certain guiding role on the waste concrete, one side of the cover 11 is made to slide into a cavity between the cover 11 and the case 1, and is broken by the hammer head 72 when contacting with the hammer head 72 rotating at high speed, and then the broken waste concrete material is extruded between the hammer head 72 and the front lining plate body 23, so that the broken waste concrete material is further crushed into waste concrete powder with a certain particle size, and the waste concrete powder is filtered to the bottom of the case 1 through a sieve plate, when the device is used, the rotor 71 is initially controlled to rotate anticlockwise at an angle shown in fig. 6, the hammer head 72 is controlled to slide outwards through centrifugal force and is knocked on the waste concrete to be decomposed, wherein when the concrete material and the hammer head 72 are clamped on the side wall of the case 1, the rotor 71 is rotated clockwise, so that other hammer heads 72 which are not clamped and move on the rotor 71 can shrink inwards to leave enough space, then can produce certain clearance with the sieve module, and when rotor 71 clockwise rotation, the accessible drives movable hammer 73 striking dead concrete material, make dead tup 72 break away from the concrete material that breaks away from that is broken down, after waiting to dead tup 72 passive break away from the dead state of card, anticlockwise rotation rotor 71 again, make tup 72 continue to strike on the old and useless concrete of follow-up pouring with anticlockwise direction, realize the continuous crushing to old and useless concrete, utilize slant spout 75, accessible change rotor 71's rotation direction, make tup 72 produce the centrifugal force of different directions, and then move on rotor 71, and produce the position difference with the sieve module and leave the space, cooperation rotor 71 drives movable hammer 73 striking on the concrete material that is broken down, make dead concrete material of card break down, and make dead tup 72 break away from, can avoid shut down and manual work crushing link, can improve the crushing efficiency of breaker.

As shown in fig. 2 and 6, the end of the first rotating shaft 42 is fixedly connected with a guide wheel 41; the guide wheel 41 is positioned outside the box body 1; the number of the rotors 71 is plural, and the rotors 71 are coaxially and fixedly connected to the first rotating shaft 42; a plurality of hammers 72 arranged in a ring-shaped array are movably connected to the plurality of rotors 71; in order to enable the hammer head 72 to move more flexibly, the guide wheel 41 and an external driving motor are driven by a belt, after the driving motor drives, the guide wheel 41 can be driven by the belt to rotate, then the first rotating shaft 42 is driven by the guide wheel 41 to rotate, after the first rotating shaft 42 rotates, a plurality of rotors 71 can be driven to synchronously rotate, after the rotors 71 rotate, the hammer head 72 arranged on the rotors 71 can be unfolded, waste concrete poured between the box body 1 and the box cover 11 is crushed under the condition of high-speed rotation, after the rotors 71 rotate at high speed, oblique acceleration is generated, the hammer head 72 can slide in the rotating direction of the rotors 71, so that the hammer head 72 can expand outwards, pressure is applied to the waste concrete, and when the hammer head 72 moves, the swinging slide block 76 for connecting the hammer head 72 can slide in the oblique slide groove 75.

As shown in fig. 7, two ends in the inclined sliding groove 75 are fixedly connected with return springs 77, one end of each return spring 77 is fixedly connected with the end of the inclined sliding groove 75, and the other end is fixedly connected with the side wall of the swinging sliding block 76. When the swing slider 76 slides in the inclined chute 75, the two return springs 77 located in the inclined chute 75 respectively generate compression and tension states, and play a role in buffering to a certain extent.

As shown in fig. 7, two movable hammers 73 are provided, and the two movable hammers 73 are arranged symmetrically at the center; the movable hammer 73 comprises a ball end and a connecting rod, wherein the ball end is fixedly connected with two ends of the connecting rod; the connecting rods are sleeved in the two return springs 77, and two ends of each connecting rod penetrate through the side wall of the rotor 71; the ball end is located outside the rotor 71. When the rotor 71 rotates at a high speed, the swinging slide blocks 76 can slide in the inclined slide grooves 75 in the radial direction, in order to assist the hammer heads 72 to crush the waste concrete in the radial direction, the follow-up movable hammer 73 is arranged in one inclined slide groove 75, when the rotor 71 generates inclined acceleration, the movable hammer 73 sliding in the through hole can slide in the inclined slide groove 75 along with the rotor, the two ends of the movable hammer 73 can extend outwards and shrink inwards to generate sliding motions, and the movable hammer 73 can assist the hammer heads 72 to strike the waste concrete when contacting the waste concrete, so that the waste concrete is crushed, and for the concrete which is difficult to crush once, the hammer heads 72 and the movable hammer 73 can strike for a plurality of times in a short time, so that the quick decomposition of the concrete which is difficult to crush is accelerated.

As shown in fig. 1 to 4, one side of the top of the case cover 11 is hinged with a feeding plate 12, and a plurality of vertebral bodies are fixedly connected on the surface of the feeding plate 12; the inside of the case cover 11 is slidably connected with a guide plate 13, and the guide plate 13 abuts against the feeding plate 12. When pouring the old and useless concrete block into case lid 11, the feed plate 12 can play the guide effect to old and useless concrete block, and utilizes the centrum on feed plate 12 surface, can restrict the concrete block once feed volume, prevents that a large amount of concrete block from once giving, causes the problem of rotor assembly jam.

As shown in fig. 5, the material guiding module 3 includes a back cover plate 31; the rear cover plate 31 is fixedly connected to the box cover 11 and the box body 1 through screws; the middle part of the rear cover plate 31 is rotatably connected with a second rotating shaft 32, and a guide blade 33 is fixedly connected on the second rotating shaft 32; the guide vane 33 is movably connected in the back cover plate 31. In order to prevent a small amount of concrete blocks with relatively small particle diameters from moving to the side of the material guiding module 3, when the rotor 71 rotates anticlockwise to realize the striking action on the concrete blocks, the swinging movable hammer 73 is used for contacting with the guide blades 33, so that the guide blades 33 rotate clockwise, and the condition that the small amount of concrete blocks with relatively small particle diameters enter the screen plate module without being primarily damaged can be avoided.

As shown in fig. 2, the front lining board module 2 includes a fixing frame 21; the bottom of the fixing frame 21 is fixedly connected with a front lining plate body 23; a plurality of reinforcing ribs 22 which are equidistantly arranged are fixedly connected to the outer part of the front lining plate body 23; the front liner body 23 is disposed adjacent to the rotor assembly. The front lining plate body 23 is matched with the hammer head 72, when the concrete blocks fall between the front lining plate body 23 and the hammer head 72, the hammer head 72 is utilized to rotate at a high speed to realize the striking of the concrete blocks, so that the concrete blocks are quickly decomposed into small concrete blocks, and the preliminary decomposition action of the concrete blocks is completed.

As shown in fig. 6, the screen module includes a fixing plate 51; the fixed plate 51 is fixedly connected in the box body 1 through screws, and a bent sieve plate 52 and a transverse sieve plate 53 are fixedly connected on the fixed plate 51; the adjacent surfaces of the bent sieve plates 52 and the transverse sieve plates 53 are abutted against each other; the sieve plate module is arranged at the bottom of the rotor assembly. When the concrete blocks are crushed into small blocks of particles from large blocks of particles, the concrete powder smaller than the gaps of the sieve holes on the sieve plate module enters the bottom of the box body 1 through the sieve plate module, and the concrete particles trapped on the sieve plate module are crushed and ground further until the gaps of the sieve plate module can pass, wherein the bent sieve plate 52 is propped against the adjacent surfaces of the transverse sieve plates 53, and the concrete powder generated at a plurality of positions on the periphery of the rotor 71 can be screened and filtered.

As shown in fig. 6, a rear lining board module is arranged at one end of the box body 1 corresponding to the transverse screen plate 53; the rear lining plate module comprises a rear lining plate body 61; a reaction plate 62 is fixedly connected to one side of the rear lining plate body 61 adjacent to the rotor assembly; the middle part of the rear lining plate body 61 is hinged in the box body 1, and one side of the rear lining plate body 61 far away from the rotor assembly is hinged with a connecting shaft 63; the connecting shaft 63 penetrates the case 1. When large-particle concrete particles still need to be crushed and ground further, the large-particle concrete particles are countered to the counterattack plate 62 on the inner side of the rear lining plate body 61 by the swing of the hammer head 72, and the acceleration of the concrete particles is given to the concrete particles by the hammer head 72, so that the concrete particles are impacted on the counterattack plate 62 at a high speed, thereby achieving the purpose of further crushing, wherein the angle between the rear lining plate body 61 and the counterattack plate 62 can be adjusted by the connecting shaft 63, and the particle size of the crushed concrete particles is changed.

As shown in fig. 4 to 5, the guide plate 13 is provided in a J-shaped structure, and the bottom of the guide plate 13 is provided with rounded corners adjacent to one end of the movable hammer 73. When the movable hammer 73 swings, the guide plate 13 can be pushed to radially slide on the box cover 11, and when the guide plate 13 radially slides, the guide plate can intermittently contact the feeding plate 12 and push the feeding plate 12 to intermittently swing, and the guide plate is matched with the cone on the feeding plate 12, so that the purpose of dispersing concrete particles poured into the box cover 11 can be achieved, and blockage caused by excessive poured concrete particles is avoided.

Example two

As shown in fig. 10, in order to achieve the anti-blocking effect of the screen module, a first embodiment is compared, in which another embodiment of the present invention is as follows: limiting grooves are formed in two sides of the fixed plate 51, and two sides of the bent screen plate 52 are connected in the limiting grooves in a sliding mode through sliding shafts; the limiting groove is connected with a sliding rod 54 in a penetrating way, and the sliding rod 54 radially penetrates through the sliding shaft; the second spring 55 is sleeved on the sliding rod 54, and two ends of the second spring 55 are fixedly connected with the inner wall of the limiting groove and the side wall of the sliding shaft. When the movable hammer 73 rotates along with the rotor 71, a sliding effect is generated, that is, one end extends and one end contracts inwards, when the end of the movable hammer 73 extends downwards and contacts the curved screen plate 52, the curved screen plate 52 can be driven to slide reversely in the limiting groove, and under the action of the second spring 55, a vibrating effect can be generated, so that the blocked concrete particles on the curved screen plate 52 can shake off, and blocking is prevented.

Working principle: because when the hammer crusher on the market at present works, a large amount of waste concrete materials are poured into the box body 1, the situation that the concrete materials and the hammer heads 72 are blocked in the box body 1 cannot be avoided due to different shapes after the concrete materials are removed, and when the situation that the hammer heads 72 and the box body 1 are blocked, shutdown maintenance is needed, and the blocked concrete materials and the hammer heads 72 are separated through the breaking hammer, so that the crusher equipment is long in downtime and low in processing efficiency.

In the device, when waste concrete is poured into a box body 1, a certain guiding effect is exerted on the waste concrete by a feeding plate 12, one side of a box cover 11 is attached to the box cover 11 and slides into a cavity between the box cover 11 and the box body 1, the waste concrete is broken up by a hammer 72 when contacting with a hammer 72 rotating at a high speed, the broken waste concrete material is further crushed into waste concrete powder with a certain particle size by extruding between the hammer 72 and a front lining plate body 23, the waste concrete powder is filtered to the bottom of the box body 1 by a sieve plate, and collection is completed, when the device is used, a rotor 71 is initially controlled to rotate anticlockwise by an angle shown in fig. 6, the hammer 72 is controlled to slide outwards by centrifugal force and is knocked on the waste concrete, so that the waste concrete is decomposed, wherein when the concrete material and the hammer 72 are clamped on the side wall of the box body 1, the rotor 71 is rotated clockwise, the other hammers 72 which are not blocked and move on the rotor 71 can shrink inwards to leave enough space, then a certain gap can be generated between the hammers and the sieve plate module, when the rotor 71 rotates clockwise, the blocked hammers 72 can be separated from the decomposed concrete material by driving the movable hammers 73 to strike the blocked concrete material, after the blocked hammers 72 are passively separated from the blocked state, the rotor 71 is rotated anticlockwise, the hammers 72 continuously strike the waste concrete poured in the follow-up process in the anticlockwise direction, the continuous crushing of the waste concrete is realized, the inclined sliding grooves 75 are utilized, the rotation direction of the rotor 71 can be changed, the hammers 72 generate centrifugal forces in different directions, then the movable hammers 71 are moved, and the position difference is generated between the movable hammers and the sieve plate module, the space is reserved for driving the movable hammers 73 to strike the blocked concrete material by the movable hammers 71, the blocked concrete material is decomposed, so that the generated position difference is used for the crushed concrete material to fall onto the sieve plate module and the blocked hammer 72 is separated, the shutdown and manual crushing links can be avoided, and the crushing efficiency of the crusher can be improved; the oblique sliding groove 75 is utilized, centrifugal forces in different directions can be generated by changing the rotation direction of the rotor 71, the hammer heads 72 are moved on the rotor 71 to generate position differences, the generated position differences can be utilized to avoid the blocking of concrete and the hammer heads 72, and avoid the stopping and manual crushing links, and the crushing efficiency of the crusher can be improved, wherein the guide wheel 41 and an external driving motor are driven by a belt, after the driving motor drives the guide wheel 41 to rotate through the belt, the first rotating shaft 42 is driven to rotate through the guide wheel 41, after the first rotating shaft 42 rotates, a plurality of rotors 71 can be driven to synchronously rotate, after the rotors 71 rotate, the hammer heads 72 arranged on the rotors 71 can be unfolded, and under the condition of high-speed rotation, the waste concrete poured between the box body 1 and the box cover 11 is crushed, after the rotors 71 rotate at high speed, oblique acceleration is generated, the hammer heads 72 can slide in the direction opposite to the rotation direction of the rotor 71, so that the hammer heads 72 can expand outwards, and apply pressure to the waste concrete, and the waste concrete is crushed, and when the hammer heads 72 are moved, the swing and the sliding blocks 72 can slide in the oblique sliding groove 76; when the rotor 71 rotates at a high speed, the swinging slide blocks 76 can slide in the inclined slide grooves 75 in the radial direction, in order to assist the hammer heads 72 to crush the waste concrete in the radial direction, the follow-up movable hammer 73 is arranged in one inclined slide groove 75, when the rotor 71 generates inclined acceleration, the movable hammer 73 sliding in the through hole can slide in the inclined slide groove 75 along with the rotor, the two ends of the movable hammer 73 can extend outwards and shrink inwards to generate sliding motions, and the movable hammer 73 can assist the hammer heads 72 to strike the waste concrete when contacting the waste concrete, so that the waste concrete is crushed, and for the concrete which is difficult to crush once, the hammer heads 72 and the movable hammer 73 can strike for a plurality of times in a short time, so that the quick decomposition of the concrete which is difficult to crush is accelerated.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A concrete reducing mechanism, characterized in that: comprises a box body (1); the top of the box body (1) is fixedly connected with a box cover (11) through screws; a feeding plate (12) is hinged to one side of the top of the box cover (11); a front lining plate module (2) is fixedly connected to one side of the top of the box body (1) adjacent to the box cover (11); the other side of the top of the box body (1) is fixedly connected with a material guide module (3) adjacent to the box body (1); the front lining plate module (2) and the material guide module (3) are fixedly connected with the box cover (11) and the box body (1) through screws; the top of the box body (1) is rotatably connected with a first rotating shaft (42) through a bearing; a rotor assembly is fixedly connected to the middle part of the first rotating shaft (42); the rotor assembly is used for crushing concrete; the rotor assembly comprises a rotor (71) and a hammer head (72); the rotor (71) is fixedly connected to the first rotating shaft (42); an inclined chute (75) is formed in the rotor (71); the hammer head (72) is movably connected in the inclined chute (75); a sieve plate module is fixedly connected inside the box body (1) corresponding to the rotor assembly; the oblique sliding groove (75) is connected with a swinging sliding block (76) in a sliding mode, and the swinging sliding block (76) is hinged with the hammer head (72) through a rotor shaft (74); the middle part of the swing sliding block (76) is provided with a through hole along the radial direction of the inclined sliding groove (75); a movable hammer (73) is connected in the through hole in a penetrating way.

2. A concrete pulverizing apparatus according to claim 1, wherein: the end part of the first rotating shaft (42) is fixedly connected with a guide wheel (41); the guide wheel (41) is positioned outside the box body (1); the plurality of rotors (71) are arranged, and the plurality of rotors (71) are coaxially and fixedly connected to the first rotating shaft (42); a plurality of hammers (72) which are arranged in a ring-shaped array are movably connected to the rotors (71).

3. A concrete pulverizing apparatus as defined in claim 2, wherein: the two ends in the inclined sliding groove (75) are fixedly connected with reset springs (77), one end of each reset spring (77) is fixedly connected with the end part of the inclined sliding groove (75), and the other end of each reset spring is fixedly connected with the side wall of the swinging sliding block (76).

4. A concrete crushing apparatus according to claim 3, wherein: the two movable hammers (73) are arranged, and the two movable hammers (73) are arranged in a central symmetry manner; the movable hammer (73) comprises a ball end and a connecting rod, and the ball end is fixedly connected to two ends of the connecting rod; the connecting rod is sleeved in the two return springs (77), and two ends of the connecting rod penetrate through the side wall of the rotor (71); the ball end is located outside the rotor (71).

5. A concrete pulverizing apparatus as defined in claim 4, wherein: one side of the top of the box cover (11) is hinged with a feeding plate (12), and a plurality of cones are fixedly connected to the surface of the feeding plate (12); the inside sliding connection of case lid (11) has guide board (13), and guide board (13) offset with feed plate (12).

6. A concrete pulverizing apparatus as defined in claim 5, wherein: the material guiding module (3) comprises a rear cover plate (31); the rear cover plate (31) is fixedly connected to the box cover (11) and the box body (1) through screws; the middle part of the rear cover plate (31) is rotationally connected with a second rotating shaft (32), and a guide blade (33) is fixedly connected on the second rotating shaft (32); the guide vane (33) is movably connected in the rear cover plate (31).

7. A concrete pulverizing apparatus as defined in claim 6, wherein: the front lining board module (2) comprises a fixing frame (21); the bottom of the fixing frame (21) is fixedly connected with a front lining plate body (23); a plurality of reinforcing ribs (22) which are equidistantly arranged are fixedly connected to the outer part of the front lining plate body (23); the front liner body (23) is disposed adjacent to the rotor assembly.

8. A concrete pulverizing apparatus as defined in claim 7, wherein: the sieve plate module comprises a fixed plate (51); the fixing plate (51) is fixedly connected in the box body (1) through screws, and a bent sieve plate (52) and a transverse sieve plate (53) are fixedly connected on the fixing plate (51); the adjacent surfaces of the bent sieve plate (52) and the transverse sieve plate (53) are propped against each other; the sieve plate module is arranged at the bottom of the rotor assembly.

9. A concrete pulverizing apparatus as defined in claim 8, wherein: a rear lining plate module is arranged at one end, corresponding to the transverse screen plate (53), inside the box body (1); the rear lining board module comprises a rear lining board body (61); a reaction plate (62) is fixedly connected to one side, adjacent to the rotor assembly, of the rear lining plate body (61); the middle part of the rear lining plate body (61) is hinged in the box body (1), and one side of the rear lining plate body (61) far away from the rotor assembly is hinged with a connecting shaft (63); the connecting shaft (63) penetrates through the box body (1).

10. A concrete pulverizing apparatus as defined in claim 9, wherein: the guide plate (13) is of a J-shaped structure, and a round corner is arranged at one end, adjacent to the movable hammer (73), of the bottom of the guide plate (13).