Construction waste crushing device

Abstract

The invention relates to the technical field of construction waste crushing, and discloses a construction waste crushing device which comprises a box body, and the box body is provided with a feeding port, a first discharging port and a second discharging port; the pair of crushing rollers is arranged in the box body; the pair of cleaning rollers is arranged in the box body; the filter screen is obliquely arranged in the box body; the first driving mechanism is arranged on the box body and is used for driving the pair of crushing rollers to rotate relatively; the second driving mechanism is arranged on the box body and used for driving the pair of crushing rollers to move close to or away from each other, so that the crushing rollers can abut against the cleaning rollers; and the third driving mechanism is arranged in the box body and used for driving the filter screen to ascend, descend and vibrate, shutdown for manual maintenance is not needed, the production safety is improved, the cleaning mode is convenient and fast, the maintenance time is shortened, and the crushing machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction waste crushing, in particular to a construction waste crushing device. Background Art

[0002] Construction waste refers to the earth debris, abandoned soil, abandoned materials, silt and other waste generated during the construction, laying, demolition and repair of various buildings, structures, pipelines, etc. by construction units or individuals.

[0003] The main uses of crushed construction waste include: recycled building materials, road construction, concrete aggregates, landfill and mountain piles.

[0004] The usual method of crushing construction waste is to use a pair of crushing rollers to crush the construction waste into fine materials of required specifications. However, during the crushing process, the existing construction waste crushing devices are prone to blockage and adhesion of the crushing rollers due to the different sizes and humidity of various types of construction waste, resulting in reduced crushing efficiency. The existing method is to shut down the machine for manual maintenance, which not only endangers personal safety during start-up and shutdown, but also requires long-term shutdown for maintenance, reducing the crushing efficiency. Summary of the invention

[0005] The object of the present invention is to provide a construction waste crushing device, aiming to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above object, the present invention provides the following solution: The present invention provides a construction waste crushing device, comprising:

[0007] The box body is provided with a feed inlet, a first discharge outlet and a second discharge outlet;

[0008] A pair of crushing rollers are arranged inside the box, and the pair of crushing rollers are located directly below the feed inlet;

[0009] A pair of cleaning rollers are arranged inside the box, and the pair of cleaning rollers are respectively located on both sides of the pair of crushing rollers;

[0010] A filter screen is obliquely arranged inside the box, the filter screen is located between the crushing roller and the first discharge port, and the lower end of the filter screen is close to the second discharge port;

[0011] A first driving mechanism is arranged on the box body, and the first driving mechanism is used to drive the pair of crushing rollers to rotate relative to each other;

[0012] A second driving mechanism is arranged on the box body, and the second driving mechanism is used to drive the pair of crushing rollers to move closer to or away from each other, so that the crushing rollers can abut against the cleaning rollers;

[0013] The third driving mechanism is arranged inside the box, and the third driving mechanism is used to drive the filter to lift and vibrate.

[0014] Optionally, a pair of sliding through grooves are opened on the side wall of the box body, and the shafts at both ends of the crushing roller are rotatably connected to first sliding blocks that are slidably fitted in the pair of sliding through grooves.

[0015] Optionally, the first driving mechanism includes:

[0016] A motor is arranged on the outer side wall of the box body;

[0017] A pair of driven pulleys are arranged on both sides of the motor, wherein one of the driven pulleys is connected to the shaft of any one of the crushing rollers, and the other driven pulley is connected to the shaft of the other crushing roller through a direction changing assembly;

[0018] The driving pulley is arranged at the output end of the motor, and the driving pulley is connected to a pair of driven pulleys through a transmission belt.

[0019] Optionally, the direction-changing component includes:

[0020] A rotating rod, rotatably connected to the first sliding block, wherein the rotating rod is connected to the driven pulley;

[0021] A first gear, fixedly connected to the rotating rod;

[0022] The second gear is fixedly connected to the shaft of the crushing roller, and the second gear is meshed with the first gear.

[0023] Optionally, the first driving mechanism further includes:

[0024] A pair of fixing plates, fixedly connected to the outer side wall of the box body;

[0025] A pair of first elastic members are fixedly connected to a pair of the fixed plates one by one, and the pair of the first elastic members are located on both sides of the motor. The telescopic ends of the first elastic members are fixedly connected to the first bearing seat, and a connecting rod with a tensioning wheel is rotatably connected to the first bearing seat, and the tensioning wheel is against the transmission belt.

[0026] Optionally, the second driving mechanism includes:

[0027] The double-outlet cylinder is arranged on the outer side wall of the box body, and the two output ends of the double-outlet cylinder are respectively fixedly connected with the second bearing seats, and a pair of the second bearing seats correspond to the shafts of a pair of the crushing rollers and are rotatably connected.

[0028] Optionally, the two ends of the cleaning roller are respectively fixedly connected with a second slider, the second slider is slidably connected in the sliding groove, a second elastic member is fixedly connected between the second slider and the end surface of the sliding groove, and the end of the first slider close to the second slider is fixedly connected with a push rod, and the end of the push rod away from the first slider is used to resist the second slider.

[0029] Optionally, the third driving mechanism includes:

[0030] A plurality of support plates are fixedly connected to the inner wall of the box body;

[0031] A plurality of telescopic sleeves correspond one to one with the plurality of support plates, the telescopic sleeves are fixedly connected between the support plates and the bottom surface of the filter, and a first single-outlet cylinder fixedly connected to the support plates, a vibrator fixedly connected to the bottom surface of the filter, and a third elastic member fixedly connected between the output end of the first single-outlet cylinder and the vibrator are arranged in the telescopic sleeves.

[0032] Optionally, a pair of guide plates are rotatably connected to the top of the box body, the feed port is formed between the pair of guide plates, and a second single-outlet cylinder is provided between the guide plate and the inner wall of the box body.

[0033] Optionally, a baffle is provided at the second discharge port, and a third single outlet cylinder is provided between the baffle and the outer side wall of the box body.

[0034] The invention discloses the following technical effects: construction waste is put into a box through a feed port, a pair of crushing rollers are driven by a first driving mechanism to rotate for crushing operation, and aggregates meeting specifications are screened by a filter and discharged from a first discharging port after being crushed; when a pair of crushing rollers are blocked or stuck or too much garbage is adhered to the box, a pair of crushing rollers are driven by a second driving mechanism to move in opposite directions, so that the gap between the two becomes larger, so that large pieces of stuck garbage fall into the filter; and when the crushing rollers and cleaning rollers collide with each other, the first driving mechanism drives the pair of crushing rollers to rotate, so that the cleaning rollers clean the crushing rollers and remove impurities adhered to the crushing rollers, and then the pair of crushing rollers are reset to quickly resume the crushing operation, without stopping the machine for manual maintenance, thereby improving production safety, and the cleaning method is convenient, shortening the maintenance time, and improving the crushing processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0038] Figure 3 It is a schematic diagram of the internal structure of the box of the present invention;

[0039] Figure 4 It is a schematic diagram of the structure of the third driving mechanism of the present invention.

[0040] In the figure: 1. box body; 2. feed port; 3. first discharge port; 4. second discharge port; 5. crushing roller; 6. cleaning roller; 7. filter screen; 8. sliding groove; 9. first slider; 10. motor; 11. driven pulley; 12. driving pulley; 13. transmission belt; 14. rotating rod; 15. first gear; 16. second gear; 17. fixing plate; 18. first elastic member; 19. first bearing seat; 20. tensioning wheel; 21. connecting rod; 22. double-outlet cylinder; 23. second bearing seat; 24. second slider; 25. second elastic member; 26. push rod; 27. support plate; 28. telescopic sleeve; 29. ​​first single-outlet cylinder; 30. vibrator; 31. third elastic member; 32. guide plate; 33. second single-outlet cylinder; 34. baffle; 35. third single-outlet cylinder. DETAILED DESCRIPTION

[0041] The construction waste crushing device is a device specially used for processing and recycling construction waste. It can crush large pieces of concrete, bricks, tiles, wood and other construction waste into smaller particles for subsequent classification, screening and reuse.

[0042] An existing Chinese patent discloses a construction waste crushing device, with the publication number CN115254290A, which includes a crushing box and a feeding mechanism, a crushing mechanism and a discharging mechanism located in the crushing box; the first conveyor belt is used to receive the material from the feed hopper and transfer the material to the first drum screen for screening; when working, the construction waste material enters from the feed hopper and falls onto the first conveyor belt, and along with the transmission of the first conveyor belt, the material is transferred to the other end of the first conveyor belt and falls into the first drum screen, and the first drum screen performs preliminary screening on the initial material, and the material that meets the specifications passes through the first drum screen, while the material that is larger than the screen hole of the first drum screen flows out from the discharge port of the first drum screen. The crushing bucket is provided with a roller for crushing materials, the feed port of the crushing bucket is adjacent to the discharge port of the first drum screen, the return material assembly includes an intercepting member and a stripping plate slidably installed in the intercepting member, the intercepting member is composed of an area above the feed port of the crushing bucket and an area below the discharge port of the crushing bucket, and a plurality of first filter holes are evenly arranged in the area below the discharge port of the crushing bucket to intercept materials with a diameter larger than the diameter of the first filter holes, the stripping plate makes a circular motion in the intercepting member to push the intercepted materials from the lower area to the upper area, and the materials fall from the upper area into the crushing bucket; wherein, the intercepting member is a vertically arranged circular ring component, the crushing bucket is located at the center of the circular ring, rotating rings are provided at both ends of the circular ring, the stripping plate is located in the circular ring, and both ends of each stripping plate are connected to the two rotating rings respectively, at least one side of the circular ring is provided with a second driving motor, and the second driving motor The machine drives the corresponding ring to rotate, and synchronously drives each stripper plate to make a circular motion in the ring, and each stripper plate is provided with a second filter hole, the second filter hole has the same radius as the first filter hole, and the radius of the first filter hole and the second filter hole are both larger than the radius of the screen hole of the first drum screen and the second drum screen; the material flowing out of the discharge port of the first drum screen falls into the crushing bucket, is crushed by the roller shaft, and falls from the discharge port of the crushing bucket to the area below the ring, wherein the material with a diameter smaller than the first filter hole directly passes through the ring, while the material directly larger than the first filter hole is intercepted by the ring, the second drive motor works, drives the rotating ring to rotate, and drives each stripper plate to make a circular motion in the ring, and pushes the material intercepted below the ring to move to the area above the ring through the stripper plate, and falls into the crushing bucket under the action of gravity for crushing again.The discharging mechanism comprises a second drum screen, a discharging guide plate and a second conveyor belt. The feeding port of the second drum screen is adjacent to the intercepting member, and receives the material filtered out by the intercepting member. One end of the second conveyor belt is adjacent to the discharging port of the second drum screen, and the other end is connected to the feeding hopper, and is used to receive the material rolled out from the second drum screen and transmit the material to the feeding hopper. The discharging guide plate is located directly below the first drum screen and the second drum screen, and is used to receive and guide out the material filtered out by the first drum screen and the second drum screen. When working, the material passing through the ring flows into the second drum screen for re-screening, and the material that meets the specifications is The material passes through the second drum screen and falls onto the discharge guide plate. A through slot is provided at one end of the crushing box near the discharge guide plate. The material slides out of the through slot along the discharge guide plate and is collected. The material that passes through the first drum screen is also collected and discharged by the discharge guide plate. The material that does not pass through the second drum screen moves from the discharge port of the second drum screen to the second conveyor belt. As the second conveyor belt is transported, baffles are evenly provided on the second conveyor belt to improve the transportation effect of the second conveyor belt. A guide box is installed at one end of the second conveyor belt near the feed hopper. The guide box is connected to the feed hopper to guide the material transferred on the second conveyor belt to move into the feed hopper. Inclined plates are provided between the first conveyor belt and the first drum screen, between the discharge port of the first drum screen and the feed port of the crushing bucket, and between the lower part of the first filter hole of the interceptor and the feed port of the second drum screen to guide the material to move smoothly between the various structures. The first drum screen and the second drum screen have the same structure, both of which include an inner screen and an outer screen coaxially installed, and a driving member, both ends of the inner screen are provided with fixed rings, both ends of the outer screen are rotatably connected with the corresponding fixed rings, and at least one end of the outer screen is installed with a locking member for locking the outer screen and the fixed ring, and the outer screen rotates around its axial direction to adjust the overlapping area of ​​the sieve holes of the outer screen and the sieve holes of the inner screen; a driven gear is installed on at least one fixed ring of the first drum screen and the second drum screen, and a linkage member is installed on one side of the driven gear, the linkage member is connected to the driving member, and the driving member drives the inner screen and the outer screen to rotate synchronously through the linkage member, wherein the driving member includes a first driving motor and a driving gear installed on the output shaft of the first driving motor, and the linkage member includes a linkage gear, which is respectively meshed with the driven gear and the driving gear.

[0043] In addition, a slide groove is provided on at least one fixing ring of the first drum screen and the second drum screen in the circumferential direction, and the locking member includes a slide rod and a locking cap located at the end of the outer screen. The slide rod is inserted into the slide groove and slides along the slide groove to drive the outer screen to rotate, and the locking cap is sleeved on the end of the slide rod away from the outer screen to fix the position of the slide rod.

[0044] When working, loosen the locking cap, slide the slide bar along the slide groove, rotate the outer screen, adjust the overlapping area of ​​the screen holes of the outer screen and the inner screen, lock the locking cap, fix the outer screen, and the first drive motor starts to synchronously drive the driving gear, the linkage gear and the driven gear to rotate, drive the outer screen and the inner screen to rotate synchronously for screening, so that the material particles that meet the requirements are screened out. The same device can be used to screen out materials of different specifications. The operation is simple, and the size of the screen holes can be continuously adjusted to meet the various needs of users.

[0045] An existing Chinese patent discloses a construction waste crushing device for construction engineering, with the publication number CN108816490A, comprising a support, a motor, a junction box, a baffle, a feed inlet, a guide, a fixer, a connecting rod, a crusher, a support plate, and a buffer device. The upper end of the support is equipped with a motor, a junction box is provided on the motor, a motor is installed on the right side of the baffle, the feed inlet is arranged above the guide, the outer surface of the guide is welded to the left end of the fixer, the right end of the fixer is connected to the upper end of the connecting rod, the buffer device comprises a piston, a piston rod, a support block, a gear, a spring, a housing, a push rod, a balance plate, a rack, a buffer, a balancer, and a cylinder. The upper end of the piston is connected to the lower end of the piston rod, the upper end of the piston rod is installed below the support block, and the The support block is embedded and installed in the shell, the gear is meshed with the rack, the spring is embedded and installed in the shell, a push rod is installed on the shell, the lower surface of the push rod is in contact with the upper surface of the balance plate, the balance plate has a spring installed on the upper end, the lower end of the rack is provided with a spring, the upper end of the buffer is installed below the balancer, the balancer is embedded and installed in the shell, a piston is installed in the cylinder, a support plate is provided below the crusher, the lower surface of the support plate is in contact with the upper surface of the buffer device, a crusher is installed on the buffer device, the lower surface of the support device is in contact with the upper surface of the buffer device, the upper surface of the support block is in contact with the lower surface of the support, the gear diameter is cm, the piston is a cylindrical structure, and the spring is a spring steel structure with an elastic effect.

[0046] When in use, the vibration force is transmitted to the piston rod through the support block, and the piston rod moves downward to drive the piston, and the downward pressure of the piston increases the pressure in the cylinder, and the pressure is used for buffering. The support block drives the push rod to move downward, and the left end of the balance plate is pressed down by the push rod, so that the right end moves up to compress the spring for buffering. The balance plate drives the rack to move upward, and the rack is engaged with the gear to make the gear rotate, and the gear is engaged with the balancer to move the balancer upward, and the spring is compressed by the balancer for buffering. The present invention solves the problem that in the prior art, when crushing construction waste, vibration is generally easy to generate, and the vibration causes the device to collide with the ground, which is easy to cause damage to the device and reduce the service life. The present invention arranges a buffer device in the structure through the combination of the above-mentioned components, transmits the vibration force to the piston rod through the support block, and drives the piston by moving the piston rod downward. The pressure in the cylinder is increased by pressing the piston downward, and the pressure is used for buffering. The support block drives the push rod to move the push rod downward, and the left end of the balance plate is pressed downward by the push rod to move the right end upward to compress the spring for buffering. The balance plate drives the rack to move upward, and the rack is meshed with the gear to rotate the gear, and the gear is meshed with the balancer to move the balancer upward, and the spring is compressed by the balancer for buffering. In this way, the device can be prevented from being damaged by collision and the service life of the device is improved.

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0049] Reference Figure 1-Figure 4 The present invention provides a construction waste crushing device, comprising:

[0050] The box body 1 is provided with a feed port 2, a first discharge port 3 and a second discharge port 4;

[0051] A pair of crushing rollers 5 are arranged inside the box 1, and the pair of crushing rollers 5 are located directly below the feed inlet 2;

[0052] A pair of cleaning rollers 6 are arranged inside the box body 1, and the pair of cleaning rollers 6 are respectively located on both sides of the pair of crushing rollers 5;

[0053] The filter screen 7 is obliquely arranged inside the box body 1, the filter screen 7 is located between the crushing roller 5 and the first discharge port 3, and the lower end of the filter screen 7 is close to the second discharge port 4;

[0054] A first driving mechanism is provided on the box body 1, and is used to drive a pair of crushing rollers 5 to rotate relative to each other;

[0055] A second driving mechanism is provided on the box body 1, and is used to drive a pair of crushing rollers 5 to move closer to or away from each other, so that the crushing rollers 5 can abut against the cleaning rollers 6;

[0056] The third driving mechanism is arranged inside the box body 1, and is used to drive the filter screen 7 to lift and vibrate.

[0057] The construction waste is put into the box body 1 through the feed port 2, and the first driving mechanism drives a pair of crushing rollers 5 to rotate for crushing operation. The crushed aggregates that meet the specifications are screened by the filter screen 7 and discharged from the first discharge port 3. When the pair of crushing rollers 5 are blocked or stuck with too much garbage, the second driving mechanism drives the pair of crushing rollers 5 to move away from each other, so that the gap between the two becomes larger, so that large pieces of stuck garbage fall into the filter screen 7, and when the crushing rollers 5 collide with the cleaning rollers 6, the first driving mechanism drives the pair of crushing rollers 5 to rotate, so that the cleaning rollers 6 clean the crushing rollers 5 and remove the impurities stuck on the crushing rollers 5, and then the pair of crushing rollers 5 are reset to quickly resume the crushing operation, without stopping for manual maintenance, thereby improving production safety, convenient cleaning method, shortening maintenance time, and improving crushing processing efficiency.

[0058] Furthermore, the crushing roller 5 includes a roller body and bristles formed of nylon material or steel wire material and arranged on the roller body.

[0059] In one embodiment of the present invention, a pair of sliding grooves 8 are opened on the side wall of the box body 1, and the shafts at both ends of the crushing roller 5 are rotatably connected to first sliding blocks 9 that are slidably fitted in the pair of sliding grooves 8.

[0060] When the pair of crushing rollers 5 slide, the first sliding block 9 slides along the sliding groove 8 to realize sliding support for the crushing rollers 5 .

[0061] Furthermore, a limiting slide groove is provided in the sliding groove 8, and a plurality of limiting sliders are slidably fitted in the limiting slide groove. The limiting sliders are fixedly connected to the first slider 9 and the second slider 24 to achieve guiding and limiting of the first slider 9 and the second slider 24.

[0062] In one embodiment of the present invention, the first driving mechanism comprises:

[0063] The motor 10 is arranged on the outer wall of the box body 1;

[0064] A pair of driven pulleys 11 are arranged on both sides of the motor 10, wherein one driven pulley 11 is connected to the shaft of any crushing roller 5, and the other driven pulley 11 is connected to the shaft of the other crushing roller 5 through a direction changing assembly;

[0065] The driving pulley 12 is disposed at the output end of the motor 10 , and the driving pulley 12 is connected to a pair of driven pulleys 11 via a transmission belt 13 .

[0066] The motor 10 drives the driving pulley 12 to rotate, thereby driving a pair of driven pulleys 11 to rotate through the transmission belt 13, and the direction-changing component causes the pair of crushing rollers 5 to rotate in relative directions, effectively improving the crushing effect.

[0067] In one embodiment of the present invention, the direction changing assembly comprises:

[0068] A rotating rod 14 is rotatably connected to the first slider 9, and the rotating rod 14 is connected to the driven pulley 11;

[0069] The first gear 15 is fixedly connected to the rotating rod 14;

[0070] The second gear 16 is fixedly connected to the shaft of the crushing roller 5 , and the second gear 16 is meshed with the first gear 15 .

[0071] The driven pulley 11 drives the rotating rod 14 to rotate, thereby driving the second gear 16 to rotate through the first gear 15 on the rotating rod 14 , so that the crushing roller 5 with the second gear 16 rotates in opposite directions to the other crushing roller 5 .

[0072] In one embodiment of the present invention, the first driving mechanism further comprises:

[0073] A pair of fixing plates 17, fixedly connected to the outer side wall of the box body 1;

[0074] A pair of first elastic members 18 are fixedly connected to a pair of fixed plates 17 one by one. The pair of first elastic members 18 are located on both sides of the motor 10. The telescopic ends of the first elastic members 18 are fixedly connected to a first bearing seat 19. A connecting rod 21 with a tensioning wheel 20 is rotatably connected to the first bearing seat 19. The tensioning wheel 20 is against the transmission belt 13.

[0075] When the pair of crushing rollers 5 moves, the transmission belt 13 is deformed, and the transmission belt 13 can maintain transmission connection with the pair of driven pulleys 11 through the first elastic member 18 and the tensioning wheel 20 .

[0076] In one embodiment of the present invention, the second driving mechanism comprises:

[0077] The double-outlet cylinder 22 is arranged on the outer wall of the box body 1. The two output ends of the double-outlet cylinder 22 are respectively fixedly connected with the second bearing seats 23. The pair of second bearing seats 23 corresponds to the shafts of the pair of crushing rollers 5 and is rotatably connected.

[0078] The second bearing seat 23 is pushed by the double-outlet cylinder 22, thereby pushing the crushing roller 5 to move.

[0079] In one embodiment of the present invention, the two ends of the cleaning roller 6 are respectively fixedly connected with a second slider 24, the second slider 24 is slidably connected in the sliding groove 8, a second elastic member 25 is fixedly connected between the second slider 24 and the end surface of the sliding groove 8, and the end of the first slider 9 close to the second slider 24 is fixedly connected with a push rod 26, and the end of the push rod 26 away from the first slider 9 is used to resist the second slider 24.

[0080] The end of the push rod 26 away from the first slider 9 extends beyond the crushing roller 5, so that after the push rod 26 abuts against the second slider 24, the crushing roller 5 only contacts the bristles on the cleaning roller 6, avoiding contact between the crushing roller 5 and the roller body of the cleaning roller 6, and by providing the second elastic member 25, when garbage of too large size adheres to the crushing roller 5, after contacting the cleaning roller 6 during rotation, the retractable effect of the cleaning roller 6 can be used to avoid excessive rigid contact between the garbage and the cleaning roller 6, thereby avoiding damage to the cleaning roller 6 and the crushing roller 5.

[0081] In one embodiment of the present invention, the third driving mechanism comprises:

[0082] A plurality of support plates 27 are fixedly connected to the inner wall of the box body 1;

[0083] A plurality of telescopic sleeves 28 correspond one to one with a plurality of support plates 27. The telescopic sleeves 28 are fixedly connected between the support plates 27 and the bottom surface of the filter screen 7. A first single-outlet cylinder 29 fixedly connected to the support plate 27, a vibrator 30 fixedly connected to the bottom surface of the filter screen 7, and a third elastic member 31 fixedly connected between the output end of the first single-outlet cylinder 29 and the vibrator 30 are arranged in the telescopic sleeves 28.

[0084] When crushing is in progress, the vibrator 30 is used to vibrate the filter 7, thereby improving the passing efficiency of aggregates on the filter 7. When maintenance is required, oversized garbage falls onto the filter 7. The inclined setting of the filter 7 allows the garbage to move toward the second discharge port 4 due to gravity. When the garbage needs to be discharged, the first single air cylinder 29 pushes the filter 7 upward, so that the filter 7 exceeds the second discharge port 4, allowing the garbage to be automatically discharged from the second discharge port 4.

[0085] In one embodiment of the present invention, a pair of guide plates 32 are rotatably connected to the top of the box body 1 , a feed port 2 is formed between the pair of guide plates 32 , and a second single-outlet cylinder 33 is provided between the guide plate 32 and the inner wall of the box body 1 .

[0086] When the crushing roller 5 is cleaned, the guide plate 32 can be pushed by the second single-outlet cylinder 33, so that the feed opening 2 between the pair of guide plates 32 becomes smaller, thereby preventing too much garbage from falling onto the filter screen 7 during cleaning.

[0087] In one embodiment of the present invention, a baffle 34 is provided at the second discharge port 4 , and a third single air outlet cylinder 35 is provided between the baffle 34 and the outer side wall of the box body 1 .

[0088] When discharging oversized pieces of garbage on the filter screen 7, the baffle 34 is driven to open by the third single air cylinder 35 to discharge the garbage. When crushing, the baffle 34 closes the second discharge port 4 to prevent dust or qualified aggregates from overflowing from the second discharge port 4.

[0089] Furthermore, expandable and contractible parts such as accordion plates are fixedly connected between the first slider 9 and the second slider 24 and between the second slider 24 and the sliding groove 8 to prevent dust or qualified aggregates from overflowing from the sliding groove 8.

[0090] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0091] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A construction waste crushing device, characterized in that: include: The box body (1) is provided with a feed port (2), a first discharge port (3) and a second discharge port (4); A pair of crushing rollers (5) are arranged inside the box (1), and the pair of crushing rollers (5) are located directly below the feed port (2); A pair of cleaning rollers (6) are arranged inside the box (1), and the pair of cleaning rollers (6) are respectively located on both sides of the pair of crushing rollers (5); A filter screen (7) is obliquely arranged inside the box body (1), the filter screen (7) is located between the crushing roller (5) and the first discharge port (3), and the lower end of the filter screen (7) is close to the second discharge port (4); A first driving mechanism is arranged on the box body (1), and is used to drive the pair of crushing rollers (5) to rotate relative to each other; a second driving mechanism, arranged on the box body (1), the second driving mechanism being used to drive the pair of crushing rollers (5) to move towards or away from each other, so that the crushing rollers (5) can abut against the cleaning rollers (6); A third driving mechanism is arranged inside the box (1), and is used to drive the filter screen (7) to lift and vibrate.

2. A construction waste crushing device according to claim 1, characterized in that: A pair of sliding grooves (8) are provided on the side wall of the box body (1), and the shafts at both ends of the crushing roller (5) are rotatably connected to first sliding blocks (9) that are slidably fitted in the pair of sliding grooves (8).

3. A construction waste crushing device according to claim 2, characterized in that: The first driving mechanism comprises: A motor (10) is arranged on the outer side wall of the box body (1); A pair of driven pulleys (11) are arranged on both sides of the motor (10), wherein one of the driven pulleys (11) is connected to the shaft of any one of the crushing rollers (5), and the other driven pulley (11) is connected to the shaft of the other crushing roller (5) through a direction-changing assembly; A driving pulley (12) is arranged at the output end of the motor (10), and the driving pulley (12) is connected to a pair of driven pulleys (11) via a transmission belt (13).

4. A construction waste crushing device according to claim 3, characterized in that: The direction-changing component comprises: A rotating rod (14) is rotatably connected to the first slider (9), and the rotating rod (14) is connected to the driven pulley (11); A first gear (15) fixedly connected to the rotating rod (14); The second gear (16) is fixedly connected to the shaft of the crushing roller (5), and the second gear (16) is meshed with the first gear (15).

5. The construction waste crushing device according to claim 3, characterized in that: The first driving mechanism further comprises: A pair of fixing plates (17) fixedly connected to the outer side wall of the box body (1); A pair of first elastic members (18) are fixedly connected to a pair of fixed plates (17) one by one. The pair of first elastic members (18) are located on both sides of the motor (10). The telescopic ends of the first elastic members (18) are fixedly connected to a first bearing seat (19). A connecting rod (21) provided with a tensioning wheel (20) is rotatably connected to the first bearing seat (19). The tensioning wheel (20) abuts against the transmission belt (13).

6. The construction waste crushing device according to claim 1, characterized in that: The second driving mechanism comprises: A double-outlet cylinder (22) is arranged on the outer wall of the box body (1), and the two output ends of the double-outlet cylinder (22) are respectively fixedly connected to second bearing seats (23), and a pair of the second bearing seats (23) correspond to the shafts of a pair of crushing rollers (5) and are rotatably connected.

7. The construction waste crushing device according to claim 2, characterized in that: The two ends of the cleaning roller (6) are respectively fixedly connected with second sliders (24), the second slider (24) is slidably connected in the sliding groove (8), a second elastic member (25) is fixedly connected between the second slider (24) and the end surface of the sliding groove (8), and the end of the first slider (9) close to the second slider (24) is fixedly connected with a push rod (26), and the end of the push rod (26) away from the first slider (9) is used to abut against the second slider (24).

8. The construction waste crushing device according to claim 1, characterized in that: The third driving mechanism comprises: A plurality of support plates (27) fixedly connected to the inner wall of the box body (1); A plurality of telescopic sleeves (28) correspond one to one with the plurality of support plates (27); the telescopic sleeves (28) are fixedly connected between the support plate (27) and the bottom surface of the filter screen (7); a first single-outlet cylinder (29) fixedly connected to the support plate (27), a vibrator (30) fixedly connected to the bottom surface of the filter screen (7), and a third elastic member (31) fixedly connected between the output end of the first single-outlet cylinder (29) and the vibrator (30) are arranged in the telescopic sleeve (28).

9. The construction waste crushing device according to claim 1, characterized in that: A pair of guide plates (32) are rotatably connected to the top of the box body (1), the feed port (2) is formed between the pair of guide plates (32), and a second single-outlet cylinder (33) is provided between the guide plates (32) and the inner wall of the box body (1).

10. The construction waste crushing device according to claim 1, characterized in that: A baffle (34) is provided at the second material outlet (4), and a third single air outlet cylinder (35) is provided between the baffle (34) and the outer side wall of the box body (1).

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