A crushing and screening device based on a slow descent building dismantling platform

Abstract

The application relates to the technical field of crushing and screening equipment, in particular to a crushing and screening equipment based on a slow-descending building dismantling platform, which comprises a base, a box body, a driving assembly, a pre-uniform assembly, a water tank, a dust falling assembly, a guide groove and a crushing device, further comprises a crushing and screening assembly and a screening auxiliary assembly, the crushing and screening assembly comprises a hydraulic rod II, a moving plate, a sliding plate, a mounting rod, a rolling roller and a connecting plate, one side of the box body is fixedly provided with a cylinder, the output end of the cylinder is fixedly connected with a slotted plate, the inner wall of the slotted plate is slidably connected with a moving block, and one side of the moving block is fixedly connected with the connecting plate; the crushing and screening assembly and the screening auxiliary assembly are matched, waste materials after crushing can be separated from metal, the screening effect is improved, the existing screening equipment cannot separately recycle the residual metal building material scraps, and the problem that the separation between large-particle sand and waste metal cannot be better satisfied is solved.

Description

Technical Field

[0001] This invention relates to the field of crushing and screening equipment technology, and in particular to a crushing and screening equipment based on a slow-descent demolition platform. Background Technology

[0002] After demolishing a high-rise building, the slow-descent demolition platform needs to efficiently process the resulting construction waste, among which crushing and screening equipment is a key component.

[0003] After demolishing high-rise buildings using a slow-descent demolition platform, a large amount of solid waste, such as construction debris or cement blocks, is typically generated. This waste often contains a significant amount of scrap metal building materials, which are difficult to recycle. Existing technologies, such as Chinese Patent No. CN221288130U, disclose a construction waste screening device. This patent, through the setting of a screening structure, allows large particles to remain above the rotating screen belt after the waste has been crushed by the crushing structure and discharged through the discharge inclined plate, while small particles are collected through a fine material discharge cart. This facilitates the screening of construction waste and also enables efficient and rapid sieving of powder materials, making them suitable for reuse in production. It also greatly improves processing efficiency and reduces the cost of waste disposal.

[0004] In the above technical solution, the screening structure can be used to separate and recycle large and small particles of waste. However, after the waste passes through the crushing device, small metal building material scraps may still remain inside the waste block. If only large and small particles of waste are screened and recycled, the remaining metal building material scraps in the waste may not be recycled separately, which cannot better meet the need for separation between large particles of sand and gravel and waste metal after the reverse crushing of construction solid waste.

[0005] Based on this, a crushing and screening device based on a slow-descent demolition platform is proposed. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention proposes a crushing and screening device based on a slow-descent demolition platform. Through the cooperation of the crushing and screening components and the screening auxiliary components, metal separation can be achieved from the crushed waste, thereby improving the screening effect.

[0007] The technical solution to achieve the purpose of this invention is as follows: a crushing and screening device based on a slow-descent demolition platform, comprising a base, two bases having the same box body fixedly connected to their inner walls, a driving component being provided on one side of the box body, a pre-uniformity component being provided inside the box body, the pre-uniformity component being slidably disposed inside the box body via the driving component, a water tank being fixedly connected to the upper surface of the box body, a dust suppression component being provided inside the box body, guide grooves being provided on both inner walls of the box body, a crushing device being fixedly installed on the upper surface of the box body, and further comprising;

[0008] A crushing and screening assembly is disposed inside the housing;

[0009] The crushing and screening assembly includes a hydraulic rod two fixedly installed on the upper surface of the housing. A movable plate is fixedly connected to the output end of the hydraulic rod two. A sliding plate is slidably provided on the lower surface of the movable plate. An installation rod is fixedly connected to the lower surface of the sliding plate. A crushing roller is rotatably connected to the surface of the installation rod. A connecting plate is fixedly connected to one side of the sliding plate. A cylinder is fixedly installed on one side of the housing. A slotted plate is fixedly connected to the output end of the cylinder. A movable block is slidably connected to the inner wall of the slotted plate. The movable block is fixedly connected to one side of the connecting plate.

[0010] The screening auxiliary component includes two right-angled plates fixedly connected to one side of a moving plate. Each of the two right-angled plates has a mounting groove on one side. Multiple one-way shafts are rotatably connected to the inner walls of the two mounting grooves. Arc-shaped teeth are fixedly connected to the surfaces of the multiple one-way shafts. A rotating cylinder is rotatably connected to the inner wall of the housing. Two sets of helical teeth and two sets of half-gears are fixedly connected to the surfaces of the rotating cylinder. The two sets of helical teeth mesh with the corresponding two sets of arc-shaped teeth. Fixed plates are fixedly connected to the inner walls of both sides of the housing. Multiple fixed balls are fixedly connected to the opposite surfaces of the two fixed plates.

[0011] In some embodiments, the crushing and screening assembly further includes a connecting block fixedly connected to the upper surface of the slotted plate, a push plate fixedly connected to the upper surface of the connecting block, two dovetail grooves formed on the lower surface of the movable plate, dovetail blocks slidably connected to the inner walls of the two dovetail grooves, and the lower surfaces of the two dovetail blocks fixedly connected to the upper surface of the slide plate.

[0012] In some embodiments, the dust suppression assembly includes two rectangular cylinders fixedly connected to the upper surface of the movable plate, and piston rods are slidably connected to the inner walls of the two rectangular cylinders. One end of each piston rod is fixedly connected to one side of the push plate.

[0013] In some embodiments, one end of the rectangular tube is fixedly connected to a water outlet corrugated pipe and a connecting hose, the end of the connecting hose away from the rectangular tube passes through the upper surface of the tank and is fixedly connected to the water tank, and a one-way valve is fixedly installed on the surface of both the water outlet corrugated pipe and the connecting hose. A water outlet box is fixedly connected to one side of the slide plate, the end of the water outlet corrugated pipe away from the rectangular tube is fixedly connected to one side of the water outlet box, and a brush plate is fixedly connected to the other side of the water outlet box.

[0014] In some embodiments, the pre-uniform component includes an adapter block that is slidably connected to the inner walls of the two guide grooves. A U-shaped frame is fixedly connected to the opposite surfaces of the two adapter blocks. A plurality of compression springs one and a plurality of compression springs two are fixedly connected to the inner walls of the two U-shaped frames respectively. The ends of the plurality of compression springs one and the plurality of compression springs two away from the inner walls of the U-shaped frames are fixedly connected to the same sieve frame.

[0015] In some embodiments, a plurality of Z-shaped rods are fixedly connected to the lower surface of the sieve frame, and a follower ball is fixedly connected to the bottom end of each of the plurality of Z-shaped rods. Fixing plates are fixedly connected to the inner walls of both sides of the box, and a plurality of fixing balls are fixedly connected to the opposite surfaces of the two fixing plates.

[0016] In some embodiments, the drive assembly includes a mounting plate fixedly connected to one side of the housing, a hydraulic rod is fixedly mounted on one side of the mounting plate, and the output end of the hydraulic rod penetrates the inner wall of one side of the housing and is fixedly connected to a rectangular plate.

[0017] In some embodiments, two fixed cylinders are fixedly connected to one side of the rectangular plate, and springs are fixedly connected to the inner walls of the two fixed cylinders. Telescopic rods are slidably connected to the inner walls of the two fixed cylinders, and one end of each telescopic rod is fixedly connected to one end of a corresponding spring.

[0018] In some embodiments, one end of the two telescopic rods is fixedly connected to the same drive plate. Two sliding grooves are formed on one side of the drive plate. Slider blocks are slidably connected to the inner walls of the two sliding grooves. One side of each of the two sliders is fixedly connected to one side of the sieve frame. Two right-angle racks are fixedly connected to the lower surface of the drive plate. The two right-angle racks mesh with two corresponding half gears.

[0019] The significant advantages of this invention compared to existing technologies are:

[0020] Firstly, this invention uses a hydraulic rod to drive a moving plate downwards, which in turn drives a sliding plate and a crushing roller mounted on the sliding plate downwards until the crushing roller crushes the waste material inside the screening frame. Then, through the action of a cylinder, the sliding plate can be pushed to slide through the dovetail block inside the dovetail groove, and the crushing roller moves inside the screening frame to perform the crushing work. Simultaneously, a push plate can squeeze two pistons, introducing water from inside the rectangular cylinder into the water outlet box through the water outlet corrugated pipe, thereby achieving dust reduction during the crushing process. The rotating crushing roller can reciprocate to contact the brush plate, and the brush plate cleans the surface of the crushing roller, improving the crushing effect of the crushing roller, thereby improving the metal waste separation effect.

[0021] Secondly, in this invention, when the moving plate drives the crushing roller to descend, the right-angle plate drives the arc-shaped teeth to descend synchronously. The arc-shaped teeth are installed via a one-way shaft, allowing them to avoid contact with the helical teeth during descent. After one crushing cycle, when the hydraulic rod two drives the moving plate to rise, the arc-shaped teeth can mesh with the helical teeth to drive the rotating drum to rotate, which in turn drives the half-gear to rotate. When the half-gear rotates, it can mesh with the right-angle rack set below the drive plate, thereby driving the screening frame to move. The fixed cylinder, spring, and telescopic rod set on one side of the drive plate can provide support for the right-angle rack. When the drive plate moves, it provides motion compensation. When the screening frame moves, the following ball below it can continuously squeeze the fixed ball on the fixed plate. With the help of the compression springs one and two, the screening frame vibrates again. This can screen out the crushed waste powder and turn over the uncrushed waste blocks at the bottom of the screening frame. When the half gear rotates to the point where it no longer meshes with the right-angle rack, the screening frame returns to its original position under the action of the spring. At this time, the moving plate moves to the initial height and can descend again to repeat the crushing step, further improving the separation effect of metal waste.

[0022] Thirdly, the present invention can drive the screening frame to move inside the guide groove through the hydraulic rod one. During the movement, it can improve the uniformity of the distribution of crushed material inside the screening frame. When the screening frame moves, the follower ball at the bottom of the screening frame will continuously contact and squeeze the fixed ball on the fixed plate two. With the help of the compression spring one and compression spring two on the screening frame, the screening frame can be vibrated up and down, further improving the uniformity of the waste block inside the screening frame, which is convenient for subsequent crushing work.

[0023] This solves the problem that existing screening equipment cannot separately recycle residual metal building material scraps in waste materials, and cannot better meet the separation needs between large particles of sand and gravel and waste metal. Attached Figure Description

[0024] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0025] Figure 1 This is a three-dimensional structural schematic diagram provided in one embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall cross-sectional structure provided in one embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the pre-uniform component structure provided in one embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the driving component structure provided in one embodiment of the present invention;

[0029] Figure 5 This is provided in one embodiment of the present invention. Figure 4 Enlarged structural diagram at point A in the middle;

[0030] Figure 6 This is a schematic diagram of the crushing and screening component structure provided in one embodiment of the present invention;

[0031] Figure 7 This is an exploded structural diagram of the crushing and screening assembly provided in one embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the dust suppression component structure provided in one embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the sieving auxiliary component structure provided in one embodiment of the present invention;

[0034] Figure 10 This is provided in one embodiment of the present invention. Figure 9 Enlarged structural diagram at point B.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Base; 2. Housing; 3. Drive assembly; 301. Mounting plate; 302. Hydraulic rod one; 303. Rectangular plate; 304. Drive plate; 305. Slide groove; 306. Slider; 307. Right-angle rack; 308. Fixed cylinder; 309. Spring; 310. Telescopic rod; 4. Pre-uniform assembly; 401. Adaptor block; 402. U-shaped frame; 403. Compression spring one; 404. Compression spring two; 405. Screening frame; 406. Z-shaped rod; 407. Follower ball; 5. Crushing and screening assembly; 501. Hydraulic rod two; 502. Moving plate; 503. Slide plate; 504. Mounting rod; 505. Crushing roller; 506. Connecting plate; 507. 508. Cylinder; 509. Grooved plate; 510. Moving block; 511. Connecting block; 512. Push plate; 513. Dovetail groove; 514. Dovetail block; 6. Dust suppression assembly; 601. Rectangular cylinder; 602. Piston rod; 603. Water outlet corrugated pipe; 604. Connecting hose; 605. One-way valve; 606. Water outlet box; 607. Brush plate; 7. Screening auxiliary assembly; 701. Right angle plate; 702. Mounting groove; 703. One-way shaft; 704. Arc-shaped tooth; 705. Rotary drum; 706. Helical tooth; 707. Half gear; 8. Crushing device; 9. Water tank; 10. Guide groove; 11. Fixed plate one; 12. Fixed plate two; 13. Fixed ball. Detailed Implementation

[0037] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] This invention provides an improved crushing and screening device based on a slow-descent demolition platform. The technical solution of this invention is as follows:

[0039] like Figures 1-10 As shown, a crushing and screening device based on a slow-descent demolition platform includes a base 1, with the same box 2 fixedly connected to the inner walls of two bases 1. A drive assembly 3 is provided on one side of the box 2, and a pre-uniformity assembly 4 is provided inside the box 2. The pre-uniformity assembly 4 is slidably disposed inside the box 2 via the drive assembly 3. A water tank 9 is fixedly connected to the upper surface of the box 2, and a filling port is provided on the water tank 9 to allow water to be added to the water tank 9. A dust suppression assembly 6 is provided inside the box 2. Guide grooves 10 are provided on both inner walls of the box 2. A crushing device 8 is fixedly installed on the upper surface of the box 2. The crushing device 8 is a prior art device, consisting of two crushing rollers and a drive component. The discharge port of the crushing device 8 is provided with a control switch, which can be controlled by an external controller to close the discharge. The device also includes...

[0040] Crushing and screening assembly 5 is installed inside the housing 2;

[0041] The crushing and screening assembly 5 includes a hydraulic rod 501 fixedly mounted to the upper surface of the housing 2. A movable plate 502 is fixedly connected to the output end of the hydraulic rod 501. The surface of the movable plate 502 is in contact with the inner wall of the housing 2 to improve stability. A sliding plate 503 is slidably mounted on the lower surface of the movable plate 502. A mounting rod 504 is fixedly connected to the lower surface of the sliding plate 503. A crushing roller 505 is rotatably connected to the surface of the mounting rod 504. The surface of the crushing roller 505 has multiple protrusions to reduce friction with waste materials. The contact area of ​​the blocks is increased, the pressure is increased, and the crushing effect is improved. A connecting plate 506 is fixedly connected to one side of the slide plate 503, and a cylinder 507 is fixedly installed on one side of the box body 2. A slotted plate 508 is fixedly connected to the output end of the cylinder 507. A moving block 509 is slidably connected to the inner wall of the slotted plate 508. The moving block 509 is fixedly connected to one side of the connecting plate 506. Through the slotted plate 508, the moving block 509 and the connecting plate 506, motion compensation can be provided during the descent of the moving plate 502.

[0042] The screening auxiliary component 7 includes two right-angle plates 701 fixedly connected to one side of the moving plate 502. Each of the two right-angle plates 701 has a mounting groove 702 on one side. Multiple one-way shafts 703 are rotatably connected to the inner walls of the two mounting grooves 702. The one-way shafts 703 are existing technology, allowing the arc-shaped teeth 704 to rotate upwards. This prevents the rotating drum 705 from rotating when the right-angle plates 701 are descending. When the right-angle plates 701 are rising, the arc-shaped teeth 704 are locked by the one-way shafts 703, which can cooperate with the helical teeth 706 to drive the rotating drum 705. The surfaces of the multiple one-way shafts 703 are fixedly connected to the arc-shaped teeth 704, and the rotating drum 705 is rotatably connected to the inner wall of the housing 2. Two sets of helical teeth 706 and two sets of half gears 707 are fixedly connected to the surface of the rotating drum 705. The two sets of helical teeth 706 mesh with the corresponding two sets of arc-shaped teeth 704. Fixed plates 11 are fixedly connected to the inner walls of both sides of the box 2. Multiple fixed balls 13 are fixedly connected to the opposite surfaces of the two fixed plates 11. Through the fixed plates 11 and the fixed balls 13, the rotating drum 705 is driven when the moving plate 502 drives the right angle plate 701 to rise. Then, the right angle rack 307 is driven to move through the half gears 707, thereby realizing the pressing of the fixed balls 13 by the follower balls 407 on the screening frame 405, realizing the screening movement of the screening frame 405, which can improve the crushing effect and remove the crushed solid particles at the same time.

[0043] like Figure 8 As shown, in one embodiment, the crushing and screening assembly 5 further includes a connecting block 510 fixedly connected to the upper surface of the slotted plate 508. A push plate 511 is fixedly connected to the upper surface of the connecting block 510. Two dovetail grooves 512 are formed on the lower surface of the moving plate 502. Dovetail blocks 513 are slidably connected to the inner walls of the two dovetail grooves 512. The lower surfaces of the two dovetail blocks 513 are fixedly connected to the upper surface of the slide plate 503. The stability of the slide plate 503 can be improved by the dovetail grooves 512 and the dovetail blocks 513. The push plate 511 can control two piston rods 602 at the same time. The moving plate 502 is U-shaped and can avoid the connecting block 510.

[0044] like Figure 7 and Figure 8 As shown, in one embodiment, the dust suppression assembly 6 includes two rectangular cylinders 601 fixedly connected to the upper surface of the movable plate 502. Piston rods 602 are slidably connected to the inner walls of the two rectangular cylinders 601. One end of each piston rod 602 is fixedly connected to one side of the push plate 511. One end of the piston rod 602 fits tightly against the inner wall of the rectangular cylinder 601 to prevent air leakage and affect the negative pressure effect. The edges can be rubber-wrapped to improve the sealing performance.

[0045] One end of the rectangular cylinder 601 is fixedly connected to a water outlet corrugated pipe 603 and a connecting hose 604. The end of the connecting hose 604 away from the rectangular cylinder 601 passes through the upper surface of the box 2 and is fixedly connected to the water tank 9. One-way valves 605 are fixedly installed on the surfaces of both the water outlet corrugated pipe 603 and the connecting hose 604. A water outlet box 606 is fixedly connected to one side of the slide plate 503. The end of the water outlet corrugated pipe 603 away from the rectangular cylinder 601 is fixedly connected to one side of the water outlet box 606. The water outlet corrugated pipe 603 can adapt to the movement trajectory of the water outlet box 606. Multiple drainage holes are opened at the bottom of the water outlet box 606 to reduce dust during the crushing process and prevent dust from being generated when screening waste block powder. A brush plate 607 is fixedly connected to the other side of the water outlet box 606. The brush plate 607 can sweep and brush the surface of the crushing roller 505 to prevent waste from adhering to the surface protrusions and affecting the crushing effect.

[0046] like Figure 2 and Figure 3 As shown, in one embodiment, the pre-uniform component 4 includes an adapter block 401 that is adapted to and slidably connected to the inner walls of the two guide grooves 10. The opposite surfaces of the two adapter blocks 401 are fixedly connected to a U-shaped frame 402. The inner walls on both sides of the two U-shaped frames 402 are respectively fixedly connected to a plurality of compression springs 403 and a plurality of compression springs 404. The ends of the plurality of compression springs 403 and the plurality of compression springs 404 away from the inner wall of the U-shaped frame 402 are fixedly connected to the same screening frame 405. The compression springs 403 and 404 can be set to make the screening frame 405 vibrate when squeezed by the follower ball 407 and the fixed ball 13, thereby improving the uniformity of the waste inside the screening frame 405 and facilitating subsequent crushing.

[0047] Multiple Z-shaped rods 406 are fixedly connected to the lower surface of the screening frame 405. Each Z-shaped rod 406 has a follower ball 407 fixedly connected to its bottom end. Fixed plates 12 are fixedly connected to the inner walls of both sides of the housing 2. Multiple fixed balls 13 are fixedly connected to the opposite surfaces of the two fixed plates 12. The fixed balls 13 and the follower balls 407 are set in corresponding numbers. By pressing against each other, and in conjunction with the action of the compression spring 403 and the compression spring 404, the screening frame 405 vibrates.

[0048] like Figure 3 and Figure 4 As shown, in one embodiment, the drive assembly 3 includes a mounting plate 301 fixedly connected to one side of the housing 2. A hydraulic rod 302 is fixedly mounted on one side of the mounting plate 301. The output end of the hydraulic rod 302 passes through the inner wall of one side of the housing 2 and is fixedly connected to a rectangular plate 303.

[0049] Two fixed cylinders 308 are fixedly connected to one side of the rectangular plate 303. Springs 308 are fixedly connected to the inner walls of the two fixed cylinders 308. Telescopic rods 310 are slidably connected to the inner walls of the two fixed cylinders 308. One end of the two telescopic rods 310 is fixedly connected to one end of the corresponding two springs 309. The fixed cylinders 308, springs 309 and telescopic rods 310 can provide motion compensation when the drive plate 304 drives the screening frame 405 to move laterally.

[0050] Two telescopic rods 310 are fixedly connected to the same drive plate 304 at one end. Two sliding grooves 305 are opened on one side of the drive plate 304. Sliding blocks 306 are slidably connected to the inner walls of the two sliding grooves 305. One side of the two sliding blocks 306 is fixedly connected to one side of the screening frame 405. Two right-angle racks 307 are fixedly connected to the lower surface of the drive plate 304. The two right-angle racks 307 mesh with the corresponding two half gears 707. The movement of the right-angle racks 307 can drive the moving rod of the screening frame 405. When the right-angle plate 701 rises, the rotating drum 705 rotates, driving the movement of the two right-angle racks 307, thereby realizing the reciprocating vibration of the screening frame 405 after crushing.

[0051] The specific working method is as follows: During use, the waste blocks crushed by the crushing device 8 fall into the screening frame 405. The hydraulic rod 302 can drive the screening frame 405 to move inside the guide groove 10. During the movement, the uniformity of the crushed material distribution inside the screening frame 405 can be improved. When the screening frame 405 moves out of the crushing device 8, the crushing device 8 can control the feeding switch to close the feeding port and stop feeding. When the screening frame 405 moves, the follower ball 407 at the bottom of the screening frame 405 will continuously contact and squeeze the fixed ball 13 on the fixed plate 12. With the help of the compression spring 403 and compression spring 404 on the screening frame 405, the up and down reciprocating vibration of the screening frame 405 can be realized, further improving the uniformity of the waste blocks inside the screening frame 405, which is convenient for subsequent crushing work. The hydraulic rod 302 continues to push the screening frame 405 to move. When it descends to the lowest point of the guide groove 10, the screening frame 405... 05 is directly opposite the crushing and screening assembly 5. Driven by the hydraulic rod 501, the moving plate 502 can be lowered, which in turn drives the slide plate 503 and the crushing roller 505 set on the slide plate 503 to lower until the crushing roller 505 squeezes the waste block inside the screening frame 405 for crushing. Then, through the action of the cylinder 507, the slide plate 503 can be pushed to slide inside the dovetail groove 512 through the dovetail block 513. The crushing roller 505 moves inside the screening frame 405 to carry out crushing work. The push plate 511 can squeeze the two pistons at the same time, and introduce the water inside the rectangular cylinder 601 into the water outlet box 606 through the water outlet corrugated pipe 603, so as to achieve the dust reduction function during the crushing process. The rotating crushing roller 505 can reciprocate to contact the brush plate 607. The brush plate 607 cleans the surface of the crushing roller 505 to prevent waste from adhering to the surface of the crushing roller 505 and affecting the crushing effect, thereby affecting the separation effect of waste metal.

[0052] When the moving plate 502 drives the crushing roller 505 to descend, it simultaneously drives the two right-angle plates 701 to descend. The descent of the two right-angle plates 701 can drive the arc-shaped teeth 704 set on them to descend. Since the arc-shaped teeth 704 are installed through the one-way shaft 703, they can avoid the helical teeth 706 during descent, so they will not drive the rotating drum 705 to rotate. After crushing once, the hydraulic rod 501 drives the moving plate 502 to rise. At this time, the arc-shaped teeth 704 on the right-angle plates 701 can mesh with the helical teeth 706 to drive the rotating drum 705 to rotate. During the rotation of the rotating drum 705, it can drive the half gear 707 to rotate. When the half gear 707 rotates, it can mesh with the right-angle rack 307 set below the drive plate 304, thereby realizing the movement of the two right-angle racks 307, thereby driving the screening frame 40. 5. The fixed cylinder 308, spring 309, and telescopic rod 310 on one side of the drive plate 304 provide motion compensation when the right-angle rack 307 drives the drive plate 304 to move. When the screening frame 405 moves, the following ball 407 below it can continuously squeeze the fixed ball 13 on the fixed plate 11. With the help of the compression spring 1 403 and the compression spring 2 404, the screening frame 405 vibrates again. This can screen out the crushed waste powder and turn over the uncrushed waste blocks at the bottom of the screening frame 405. When the half gear 707 rotates to the point where it does not mesh with the right-angle rack 307, the screening frame 405 returns to its original position under the action of the spring 309. At this time, the moving plate 502 moves to the initial height and can descend again to repeat the crushing step, further improving the crushing effect and thus improving the separation effect of metal building materials.

[0053] The technical means disclosed in this invention are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this invention are common knowledge to those skilled in the art.

Claims

1. A crushing and screening device based on a slow-descent demolition platform, comprising a base (1), two bases (1) having a common housing (2) fixedly connected to their inner walls, a driving assembly (3) provided on one side of the housing (2), a pre-uniformity assembly (4) provided inside the housing (2), the pre-uniformity assembly (4) being slidably disposed inside the housing (2) via the driving assembly (3), a water tank (9) fixedly connected to the upper surface of the housing (2), a dust suppression assembly (6) provided inside the housing (2), guide grooves (10) provided on both inner walls of the housing (2), and a crushing device (8) fixedly installed on the upper surface of the housing (2), characterized in that: Also includes; Crushing and screening assembly (5), wherein the crushing and screening assembly (5) is disposed inside the housing (2); The crushing and screening assembly (5) includes a hydraulic rod two (501) fixedly installed on the upper surface of the housing (2). The output end of the hydraulic rod two (501) is fixedly connected to a moving plate (502). A sliding plate (503) is slidably arranged on the lower surface of the moving plate (502). An installation rod (504) is fixedly connected to the lower surface of the sliding plate (503). A crushing roller (505) is rotatably connected to the surface of the installation rod (504). A connecting plate (506) is fixedly connected to one side of the sliding plate (503). A cylinder (507) is fixedly installed on one side of the housing (2). A slotted plate (508) is fixedly connected to the output end of the cylinder (507). A moving block (509) is slidably connected to the inner wall of the slotted plate (508). The moving block (509) is fixedly connected to one side of the connecting plate (506). The sieving auxiliary component (7) includes two right-angle plates (701) fixedly connected to one side of the moving plate (502). Each of the two right-angle plates (701) has an installation groove (702) on one side. The inner walls of the two installation grooves (702) are rotatably connected to multiple one-way shafts (703). The surfaces of the multiple one-way shafts (703) are fixedly connected to arc-shaped teeth (704). The inner wall of the box (2) is rotatably connected to a rotating cylinder (705). The surfaces of the rotating cylinder (705) are fixedly connected to two sets of helical teeth (706) and two sets of half gears (707). The two sets of helical teeth (706) mesh with the corresponding two sets of arc-shaped teeth (704). The inner walls of both sides of the box (2) are fixedly connected to a first fixing plate (11). The opposite surfaces of the two first fixing plates (11) are fixedly connected to multiple fixed balls (13). The pre-uniform component (4) includes an adapter block (401) that is adapted to and slidably connected to the inner walls of the two guide grooves (10). A U-shaped frame (402) is fixedly connected to the opposite surfaces of the two adapter blocks (401). Multiple compression springs one (403) and multiple compression springs two (404) are fixedly connected to the inner walls of the two U-shaped frames (402) respectively. The ends of the multiple compression springs one (403) and multiple compression springs two (404) away from the inner wall of the U-shaped frame (402) are fixedly connected to the same sieve frame (405). Multiple Z-shaped rods (406) are fixedly connected to the lower surface of the sieve frame (405). A follower ball (407) is fixedly connected to the bottom end of the multiple Z-shaped rods (406). A fixing plate two (12) is fixedly connected to the inner walls of the two boxes (2). Multiple fixing balls (13) are fixedly connected to the opposite surfaces of the two fixing plates two (12).

2. The crushing and screening equipment based on a slow-descent demolition platform according to claim 1, characterized in that: The crushing and screening assembly (5) also includes a connecting block (510) fixedly connected to the upper surface of the slotted plate (508). A push plate (511) is fixedly connected to the upper surface of the connecting block (510). Two dovetail grooves (512) are opened on the lower surface of the moving plate (502). Dovetail blocks (513) are slidably connected to the inner walls of the two dovetail grooves (512). The lower surfaces of the two dovetail blocks (513) are fixedly connected to the upper surface of the slide plate (503).

3. The crushing and screening equipment based on a slow-descent demolition platform according to claim 2, characterized in that: The dust suppression assembly (6) includes two rectangular cylinders (601) fixedly connected to the upper surface of the movable plate (502). The inner walls of the two rectangular cylinders (601) are slidably connected with piston rods (602), and one end of each piston rod (602) is fixedly connected to one side of the push plate (511).

4. A crushing and screening device based on a slow-descent demolition platform according to claim 3, characterized in that: One end of the rectangular tube (601) is fixedly connected to a water outlet corrugated pipe (603) and a connecting hose (604). The end of the connecting hose (604) away from the rectangular tube (601) passes through the upper surface of the box body (2) and is fixedly connected to the water tank (9). One-way valves (605) are fixedly installed on the surfaces of the water outlet corrugated pipe (603) and the connecting hose (604). A water outlet box (606) is fixedly connected to one side of the slide plate (503). The end of the water outlet corrugated pipe (603) away from the rectangular tube (601) is fixedly connected to one side of the water outlet box (606). A brush plate (607) is fixedly connected to the other side of the water outlet box (606).

5. A crushing and screening device based on a slow-descent demolition platform according to claim 1, characterized in that: The drive assembly (3) includes a mounting plate (301) fixedly connected to one side of the housing (2). A hydraulic rod (302) is fixedly installed on one side of the mounting plate (301). The output end of the hydraulic rod (302) passes through the inner wall of one side of the housing (2) and is fixedly connected to a rectangular plate (303).

6. A crushing and screening device based on a slow-descent demolition platform according to claim 5, characterized in that: Two fixed cylinders (308) are fixedly connected to one side of the rectangular plate (303). Springs (309) are fixedly connected to the inner walls of the two fixed cylinders (308). Telescopic rods (310) are slidably connected to the inner walls of the two fixed cylinders (308). One end of the two telescopic rods (310) is fixedly connected to one end of the corresponding two springs (309).

7. A crushing and screening device based on a slow-descent demolition platform according to claim 6, characterized in that: One end of each of the two telescopic rods (310) is fixedly connected to the same drive plate (304). Two grooves (305) are provided on one side of the drive plate (304). Sliding blocks (306) are slidably connected to the inner walls of the two grooves (305). One side of each sliding block (306) is fixedly connected to one side of the sieve frame (405). Two right-angle racks (307) are fixedly connected to the lower surface of the drive plate (304). The two right-angle racks (307) mesh with the corresponding two half gears (707).

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