Crushing and screening equipment based on slow descending building dismounting platform

Abstract

The invention relates to the technical field of smashing and screening equipment, in particular to smashing and screening equipment based on a slowly-descending building disassembling platform, which comprises a base, a box body, a driving assembly, a pre-homogenizing assembly, a water tank, a dust falling assembly, a guide groove and a smashing device, and further comprises a grinding and screening assembly and a screening auxiliary assembly, the grinding and screening assembly comprises a second hydraulic rod, a moving plate, a sliding plate, a mounting rod, a grinding roller and a connecting plate, an air cylinder is fixedly mounted on one side of the box body, the output end of the air cylinder is fixedly connected with a slotting plate, the inner wall of the slotting plate is slidably connected with a moving block, and the moving block is fixedly connected with one side of the connecting plate. Through cooperation of the grinding and screening assembly and the screening auxiliary assembly, metal separation can be conducted on smashed waste, the screening effect is improved, and the problem that metal building material leftover materials left in the waste cannot be independently recycled through existing screening equipment, and the screening efficiency is improved is solved. And the problem that large-particle gravel and waste metal cannot be better separated is solved.

Description

Technical Field

[0001] The invention relates to the technical field of crushing and screening equipment, in particular to crushing and screening equipment based on a slow-descending building demolition platform. Background Art

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

[0003] After demolishing a high-rise building on a slow-descending demolition platform, a large amount of solid waste such as building rubble or cement blocks is usually generated. Among these wastes, there are usually a large amount of metal building material scraps, which are not convenient to recycle. In the prior art, such as the Chinese patent with announcement number CN221288130U, a construction waste screening device is disclosed. The patent sets a screening structure. After the waste is crushed by the crushing structure, large particles stay above the rotating screening belt and are discharged through the discharging inclined plate. Small particles are collected by the filter fine material discharging vehicle, which is convenient for screening the construction waste and also convenient for efficient and fast screening of powder materials, which is suitable for production again. At the same time, it also greatly improves the processing efficiency and reduces the cost of waste treatment.

[0004] In the above technical scheme, large and small particles of waste in the waste can be screened and recovered through the setting of the screening structure. However, after the waste passes through the crushing device, smaller metal building material scraps may still remain inside the formed waste blocks. If only the large and small particles of waste in the waste are screened and recovered, the metal building material scraps remaining in the waste may not be recycled separately, which cannot better meet the needs of separating 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 equipment based on a slow-descending building demolition platform is proposed. Summary of the invention

[0006] In order to solve the above technical problems, the present invention proposes a crushing and screening equipment based on a slow-descending building demolition platform. Through the cooperation of the crushing and screening components and the screening auxiliary components, the crushed waste can be separated from the metal to improve the screening effect.

[0007] The technical solution to achieve the purpose of the present invention is: a crushing and screening device based on a slow-descending building demolition platform, comprising a base, the inner walls of the two bases are fixedly connected to the same box, a driving component is arranged on one side of the box, a pre-evening component is arranged inside the box, the pre-evening component is slidably arranged inside the box through the driving component, a water tank is fixedly connected to the upper surface of the box, a dust reduction component is arranged inside the box, guide grooves are opened on the inner walls of both sides of the box, a crushing device is fixedly installed on the upper surface of the box, and also includes;

[0008] A crushing and screening assembly, wherein the crushing and screening assembly is arranged inside the box;

[0009] The crushing and screening assembly comprises two hydraulic rods fixedly mounted on the upper surface of the box body, the output end of the two hydraulic rods is fixedly connected to a moving plate, the lower surface of the moving plate is slidably provided with a slide plate, the lower surface of the slide plate is fixedly connected to a mounting rod, the surface of the mounting rod is rotatably connected to a crushing roller, one side of the slide plate is fixedly connected to a connecting plate, one side of the box body is fixedly mounted with a cylinder, the output end of the cylinder is fixedly connected to a slotted plate, the inner wall of the slotted plate is slidably connected to a moving block, and the moving block is fixedly connected to one side of the connecting plate;

[0010] A screening auxiliary component, the screening and crushing component includes two right-angle plates fixedly connected to one side of the moving plate, one side of the two right-angle plates is provided with a mounting groove, the inner walls of the two mounting grooves are rotatably connected with a plurality of one-way shafts, the surfaces of the plurality of one-way shafts are fixedly connected with arc-shaped teeth, the inner wall of the box is rotatably connected with a rotating drum, the surface of the rotating drum is respectively fixedly connected with two groups of helical teeth and two groups of half gears, the two groups of helical teeth are respectively meshed with the corresponding two groups of arc-shaped teeth, the inner walls on both sides of the box are fixedly connected with a fixed plate 1, and the opposite surfaces of the two fixed plates 1 are fixedly connected with a plurality of fixed balls.

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

[0012] In some embodiments, the dust reduction assembly includes two rectangular tubes fixedly connected to the upper surface of the movable plate, the inner walls of the two rectangular tubes are slidably connected with piston rods, and one end of the two piston rods is respectively 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 bellows and a connecting hose, respectively; one end of the connecting hose away from the rectangular tube passes through the upper surface of the box body and is fixedly connected to the water tank; one-way valves are fixedly installed on the surfaces of the water outlet bellows and the connecting hose; one side of the slide plate is fixedly connected to a water outlet box; one end of the water outlet bellows away from the rectangular tube is fixedly connected to one side of the water outlet box; one side of the water outlet box is fixedly connected to a brush plate.

[0014] In some embodiments, the pre-evening component includes an adapter block that is slidably connected to the inner walls of the two guide grooves, the opposite surfaces of the two adapter blocks are fixedly connected to a U-shaped frame, and the inner walls on both sides of the two U-shaped frames are respectively fixedly connected to multiple compression springs one and multiple compression springs two, and the ends of the multiple compression springs one and the multiple compression springs two away from the inner wall of the U-shaped frame are fixedly connected to the same screening frame.

[0015] In some embodiments, a plurality of Z-rods are fixedly connected to the lower surface of the sub-screen frame, a follower ball is fixedly connected to the bottom ends of the plurality of Z-rods, a fixed plate 2 is fixedly connected to the inner walls on both sides of the box body, and a plurality of fixed balls are fixedly connected to the opposite surfaces of the two fixed plates 2.

[0016] In some embodiments, the drive assembly includes a mounting plate fixedly connected to one side of the box body, a hydraulic rod 1 is fixedly mounted on one side of the mounting plate, and an output end of the hydraulic rod 1 passes through an inner wall of one side of the box body 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, the inner walls of the two fixed cylinders are fixedly connected to springs, the inner walls of the two fixed cylinders are slidably connected to telescopic rods, and one end of the two telescopic rods is fixedly connected to one end of the corresponding two springs.

[0018] In some embodiments, one end of the two telescopic rods is fixedly connected to the same driving plate, two sliding grooves are opened on one side of the driving plate, the inner walls of the two sliding grooves are slidably connected with sliders, one side of the two sliders are respectively fixedly connected to one side of the screening frame, and the lower surface of the driving plate is fixedly connected to two right-angle racks, and the two right-angle racks are respectively meshed with the corresponding two half gears.

[0019] Compared with the prior art, the present invention has the following significant advantages:

[0020] First, the present invention can drive the moving plate to descend by driving the second hydraulic rod, and then drive the slide plate and the rolling roller arranged on the slide plate to descend, until the rolling roller squeezes the waste block inside the screening frame to crush it, and then through the action of the cylinder, the slide plate can be pushed to slide inside the dovetail groove through the dovetail block, and the rolling roller moves inside the screening frame to crush it, and the synchronous push plate can squeeze the two pistons to introduce the water inside the rectangular cylinder into the water outlet box through the water outlet bellows, so that the dust reduction function can be realized in the crushing process, and the rotating rolling roller can reciprocately contact with the brush plate, and the brush plate cleans the surface of the rolling roller, thereby improving the rolling effect of the rolling roller, thereby improving the metal waste separation effect;

[0021] Secondly, 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 through a one-way shaft and can avoid the helical teeth when descending. After crushing once, when the second hydraulic rod drives the moving plate to rise, the arc-shaped teeth can mesh with the helical teeth to drive the rotating drum to rotate, and can drive the half gear to rotate. When the half gear rotates, it can mesh with the right-angle rack set under the driving plate, thereby driving the sub-screen frame to move. The fixed cylinder, spring and telescopic rod set on one side of the driving plate can be the right-angle rack on the belt When the dynamic driving plate moves, motion compensation is provided. When the sub-screening frame moves, the follower ball below it can continuously squeeze the fixed ball on the fixed plate 1, and cooperate with the compression spring 1 and the compression spring 2 to realize the re-vibration of the sub-screening frame, which can screen out the crushed waste powder and turn over the uncrushed waste blocks at the bottom of the sub-screening frame. When the half gear rotates to not mesh with the right-angle rack, the sub-screening frame is reset under the action of the spring. At this time, the moving plate moves to the initial height and can be lowered again to repeat the crushing step, further improving the separation effect of metal waste;

[0022] Thirdly, the present invention can drive the sub-screening frame to move inside the guide groove through hydraulic rod 1, and the uniformity of the distribution of the crushed material inside the sub-screening frame can be improved during the movement. When the sub-screening frame moves, the follower ball at the bottom of the sub-screening frame will continuously contact and squeeze the fixed ball on the fixed plate 2, and the compression spring 1 and compression spring 2 on the sub-screening frame can realize the up and down reciprocating vibration of the sub-screening frame, thereby further improving the uniformity of the waste blocks inside the sub-screening frame and facilitating the subsequent crushing work.

[0023] The invention solves the problem that the metal building material scraps remaining in the waste materials cannot be recycled separately by the existing screening equipment, and cannot better meet the separation between large-grained sand and gravel and waste metal. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0029] Figure 5 The present invention provides in one embodiment Figure 4 The enlarged structural diagram at A in the middle;

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

[0031] Figure 7 Schematic diagram of the explosion structure of a crushing and screening assembly provided in one embodiment of the present invention;

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

[0033] Fig. 9 is a schematic structural diagram of a screening auxiliary component provided in one embodiment of the present invention;

[0034] Fig.10 The present invention provides in one embodiment Fig. 9 Enlarged structural diagram at B in the middle.

[0035] Description of reference numerals:

[0036] 1. Base; 2. Box; 3. Drive assembly; 301. Mounting plate; 302. Hydraulic rod 1; 303. Rectangular plate; 304. Drive plate; 305. Slide; 306. Slider; 307. Right-angle rack; 308. Fixed cylinder; 309. Spring; 310. Telescopic rod; 4. Pre-evening assembly; 401. Adapter block; 402. U-shaped frame; 403. Compression spring 1; 404. Compression spring 2; 405. Screening frame; 406. Z-shaped rod; 407. Follow-up ball; 5. Crushing and screening assembly; 501. Hydraulic rod 2; 502. Moving plate; 503. Slide plate; 504. Mounting rod; 505. Rolling roller; 506. Connecting plate; 507. Cylinder; 508, slotted plate; 509, moving block; 510, connecting block; 511, push plate; 512, dovetail groove; 513, dovetail block; 6, dust suppression component; 601, rectangular cylinder; 602, piston rod; 603, water outlet bellows; 604, connecting hose; 605, one-way valve; 606, water outlet box; 607, brush plate; 7, screening auxiliary component; 701, right-angle plate; 702, mounting groove; 703, one-way shaft; 704, arc teeth; 705, rotating drum; 706, oblique teeth; 707, half gear; 8, crushing device; 9, water tank; 10, guide groove; 11, fixed plate one; 12, fixed plate two; 13, fixed ball. DETAILED DESCRIPTION

[0037] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. 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.

[0038] The present invention provides a crushing and screening device based on a slow-descending building demolition platform through improvement. The technical solution of the present invention is:

[0039] like Figure 1-Figure 10 As shown, a crushing and screening device based on a slow-descending building demolition platform includes a base 1, the inner walls of two bases 1 are fixedly connected to the same box body 2, a driving component 3 is provided on one side of the box body 2, a pre-evening component 4 is provided inside the box body 2, and the pre-evening component 4 is slidably arranged inside the box body 2 through the driving component 3, a water tank 9 is fixedly connected to the upper surface of the box body 2, and a filling port is provided on the water tank 9 to realize water filling of the water tank 9, a dust reduction component 6 is provided inside the box body 2, guide grooves 10 are provided on the inner walls on both sides of the box body 2, a crushing device 8 is fixedly installed on the upper surface of the box body 2, and the crushing device 8 is a prior art, which is composed of two crushing rollers and a driving component, and a control switch is provided at the discharge port of the crushing device 8, and the closing of the discharge can be controlled by an external controller, and also includes;

[0040] A crushing and screening component 5, which is arranged inside the box 2;

[0041] The crushing and screening assembly 5 includes a hydraulic rod 501 fixedly mounted on the upper surface of the box body 2, and the output end of the hydraulic rod 501 is fixedly connected to a movable plate 502, and the surface of the movable plate 502 is in contact with the inner wall of the box body 2 to improve stability. A slide plate 503 is slidably provided on the lower surface of the movable plate 502, and a mounting rod 504 is fixedly connected to the lower surface of the slide plate 503. A rolling roller 505 is rotatably connected to the surface of the mounting rod 504, and a plurality of protrusions are provided on the surface of the rolling roller 505 to reduce the contact with the waste. The contact area of ​​the block is increased to increase the pressure and improve the crushing effect. A connecting plate 506 is fixedly connected to one side of the slide plate 503. 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. The slotted plate 508, the moving block 509 and the connecting plate 506 can provide motion compensation for the moving plate 502 during its descent.

[0042] The screening auxiliary component 7, the screening and crushing component includes two right-angle plates 701 fixedly connected to one side of the moving plate 502, one side of the two right-angle plates 701 is provided with a mounting groove 702, the inner walls of the two mounting grooves 702 are rotatably connected with a plurality of one-way shafts 703, the one-way shafts 703 are prior art, and the arc-shaped teeth 704 can be rotated upward here, so that when the right-angle plate 701 is lowered, the rotating drum 705 does not rotate, when the right-angle plate 701 rises, the arc-shaped teeth 704 are locked by the one-way shaft 703, and the rotating drum 705 can be driven in conjunction with the helical teeth 706, the surfaces of the plurality of one-way shafts 703 are fixedly connected with the arc-shaped teeth 704, and the inner wall of the box body 2 is rotatably connected with the rotating drum 705, Two groups of bevel teeth 706 and two groups of half gears 707 are fixedly connected to the surface of the rotating drum 705, respectively. The two groups of bevel teeth 706 are meshed with the corresponding two groups of arc-shaped teeth 704. The inner walls on both sides of the box body 2 are fixedly connected with a fixed plate 11, and the opposite surfaces of the two fixed plates 11 are fixedly connected with a plurality of fixed balls 13. Through the fixed plate 11 and the fixed balls 13, when the moving plate 502 drives the right-angle plate 701 to rise, the rotating drum 705 is driven, and then the right-angle rack 307 is driven to move through the half gear 707, so that the follower ball 407 on the sub-screen frame 405 squeezes the fixed ball 13, and the sub-screen frame 405 is sifted, which can improve the crushing effect and screen out the crushed solid particles at the same time.

[0043] like Figure 8 As shown, in one embodiment, the crushing and screening assembly 5 also includes a connecting block 510 fixedly connected to the upper surface of the slotted plate 508, and a push plate 511 is fixedly connected to the upper surface of the connecting block 510. The lower surface of the movable plate 502 is provided with two dovetail grooves 512, and the inner walls of the two dovetail grooves 512 are slidably connected with dovetail blocks 513. The lower surfaces of the two dovetail blocks 513 are respectively fixedly connected to the upper surface of the slide plate 503. The stability of the slide plate 503 can be improved by setting the dovetail grooves 512 and dovetail blocks 513. The push plate 511 can control two piston rods 602 at the same time. The movable 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 reduction component 6 includes two rectangular cylinders 601 fixedly connected to the upper surface of the movable plate 502, and the inner walls of the two rectangular cylinders 601 are slidably connected with piston rods 602. One end of the two piston rods 602 is respectively fixedly connected to one side of the push plate 511, and one end of the piston rod 602 is tightly fitted to the inner wall of the rectangular cylinder 601 to avoid air leakage and affect the negative pressure effect. The edge can be wrapped with rubber to improve the sealing.

[0045] One end of the rectangular cylinder 601 is fixedly connected with a water outlet bellows 603 and a connecting hose 604, respectively. The end of the connecting hose 604 away from the rectangular cylinder 601 passes through the upper surface of the box body 2 and is fixedly connected to the water tank 9. A one-way valve 605 is fixedly installed on the surface of the water outlet bellows 603 and the connecting hose 604. One side of the slide plate 503 is fixedly connected with a water outlet box 606. The end of the water outlet bellows 603 away from the rectangular cylinder 601 is fixedly connected to one side of the water outlet box 606. The water outlet bellows 603 is arranged to adapt to the moving trajectory of the water outlet box 606. A plurality of water leakage holes are provided at the bottom of the water outlet box 606, which can realize dust reduction during the crushing process and avoid dust when screening out waste block powder. A brush plate 607 is fixedly connected to one side of the water outlet box 606. The brush plate 607 can sweep the surface of the rolling roller 505 to prevent the protrusions on the surface from adhering to waste and affecting the rolling effect.

[0046] like Figure 2 and Figure 3 As shown, in one embodiment, the pre-uniformization component 4 includes an adapter block 401 which is slidably connected to the inner walls of the two guide grooves 10, and the opposite surfaces of the two adapter blocks 401 are fixedly connected with a U-shaped frame 402. The inner walls on both sides of the two U-shaped frames 402 are respectively fixedly connected with a plurality of compression springs 1 403 and a plurality of compression springs 2 404, and one end of the plurality of compression springs 1 403 and the plurality of compression springs 2 404 away from the inner wall of the U-shaped frame 402 is fixedly connected with the same sub-screening frame 405. By setting the compression springs 1 403 and 2 404, the sub-screening frame 405 can vibrate when squeezed by the follower ball 407 and the fixed ball 13, thereby improving the uniformity of the waste inside the sub-screening frame 405 and facilitating subsequent crushing.

[0047] The lower surface of the sub-screening frame 405 is fixedly connected with a plurality of Z-shaped rods 406, and the bottom ends of the plurality of Z-shaped rods 406 are fixedly connected with follower balls 407. The inner walls on both sides of the box body 2 are fixedly connected with fixed plates 12, and the opposite surfaces of the two fixed plates 12 are fixedly connected with a plurality of fixed balls 13. The fixed balls 13 and the follower balls 407 are arranged in corresponding numbers, and the vibration of the sub-screening frame 405 is achieved by squeezing each other and cooperating with the action of compression springs 1 403 and 404.

[0048] like Figure 3 and Figure 4 As shown, in one embodiment, the driving assembly 3 includes a mounting plate 301 fixedly connected to one side of the box body 2, a hydraulic rod 302 is fixedly installed on one side of the mounting plate 301, and an output end of the hydraulic rod 302 passes through an inner wall of one side of the box body 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, and the inner walls of the two fixed cylinders 308 are fixedly connected with spring 308 fixed cylinders; 309, the inner walls of the two fixed cylinders 308 are slidably connected with telescopic rods 310, and one end of the two telescopic rods 310 is respectively fixedly connected to one end of the corresponding two springs 309. Through the set fixed cylinders 308, springs 309 and telescopic rods 310, the driving plate 304 can drive the sub-screen frame 405 to provide motion compensation when it moves horizontally.

[0050] One end of the two telescopic rods 310 is fixedly connected to the same driving plate 304, and two sliding grooves 305 are provided on one side of the driving plate 304. The inner walls of the two sliding grooves 305 are slidably connected with sliders 306, and one side of the two sliders 306 is respectively fixedly connected to one side of the sub-screening frame 405. The lower surface of the driving plate 304 is fixedly connected to two right-angle racks 307, and the two right-angle racks 307 are respectively meshed with the corresponding two half gears 707. The movement of the right-angle racks 307 can drive the moving rod of the sub-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 sub-screening frame 405 after crushing.

[0051] The specific working method is as follows: when in use, the waste blocks crushed by the crushing device 8 will fall into the inside of the sub-screening frame 405, and the sub-screening frame 405 can be driven to move in the guide groove 10 by the hydraulic rod 1 302. During the movement, the uniformity of the crushed materials in the sub-screening frame 405 can be improved. When the sub-screening frame 405 moves out from the bottom of the crushing device 8, the crushing device 8 can control the unloading switch to close the unloading port and stop unloading. When the sub-screening frame 405 moves, the follower ball 407 at the bottom of the sub-screening frame 405 will continuously contact and squeeze the fixed ball 13 on the fixed plate 2 12, and cooperate with the compression spring 1 403 and the compression spring 2 404 on the sub-screening frame 405 to realize the up and down reciprocating vibration of the sub-screening frame 405, thereby further improving the uniformity of the waste blocks inside the sub-screening frame 405 and facilitating the subsequent crushing work. The hydraulic rod 1 302 continues to push the sub-screening frame 405 to move. When it drops to the lowest point of the guide groove 10, at this time, the sub-screening frame 4 05 is facing the crushing and screening component 5. Through the driving of the hydraulic rod 2 501, the movable plate 502 can be driven to descend, and then the slide plate 503 and the rolling roller 505 set on the slide plate 503 can be driven to descend until the rolling 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, and the rolling roller 505 moves inside the screening frame 405 to crush. The synchronous push plate 511 can squeeze the two pistons to introduce the water inside the rectangular cylinder 601 into the water outlet box 606 through the water outlet bellows 603, so that the dust reduction function can be realized in the crushing process. The rotating rolling roller 505 can reciprocate and contact with the brush plate 607, and the brush plate 607 cleans the surface of the rolling roller 505 to prevent the waste from adhering to the surface of the rolling roller 505 and affecting the crushing effect, thereby affecting the separation effect of the waste metal;

[0052] When the moving plate 502 drives the crushing roller 505 to descend, the two right-angle plates 701 are driven to descend synchronously. The descent of the two right-angle plates 701 can drive the arc-shaped teeth 704 arranged thereon to descend. Since the arc-shaped teeth 704 are installed through the one-way shaft 703, they can form an avoidance relationship with the bevel teeth 706 when descending, 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 plate 701 can mesh with the bevel teeth 706 to drive the rotating drum 705 to rotate. During the rotation of the rotating drum 705, the half gear 707 can be driven to rotate. When the half gear 707 rotates, it can mesh with the right-angle rack 307 arranged under the driving plate 304, thereby realizing the movement of the two right-angle racks 307, thereby driving the sub-screen frame 40 5 moves, the fixed cylinder 308, the spring 309 and the telescopic rod 310 arranged on one side of the driving plate 304 can provide movement compensation for the right-angle rack 307 when driving the driving plate 304 to move. When the sub-screening frame 405 moves, the follower ball 407 below it can continuously squeeze the fixed ball 13 on the fixed plate 11, and cooperate with the compression spring 1 403 and the compression spring 2 404 to realize the re-vibration of the sub-screening frame 405, which can screen out the crushed waste powder and turn over the uncrushed waste blocks at the bottom of the sub-screening frame 405. When the half gear 707 rotates to not mesh with the right-angle rack 307, the sub-screening frame 405 is reset under the action of the spring 309, and the moving plate 502 moves to the initial height at this time, and can be lowered again to repeat the crushing step, so as to further improve the crushing effect, thereby improving the separation effect of metal building materials.

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

Claims

1. A crushing and screening device based on a slow-descending building demolition platform, comprising a base (1), the inner walls of two bases (1) are fixedly connected to the same box (2), a driving component (3) is arranged on one side of the box (2), a pre-uniform component (4) is arranged inside the box (2), the pre-uniform component (4) is slidably arranged inside the box (2) through the driving component (3), a water tank (9) is fixedly connected to the upper surface of the box (2), a dust reduction component (6) is arranged inside the box (2), guide grooves (10) are provided on the inner walls on both sides of the box (2), and a crushing device (8) is fixedly installed on the upper surface of the box (2), characterized in that: Also includes; A crushing and screening assembly (5), wherein the crushing and screening assembly (5) is arranged inside the box (2); The crushing and screening assembly (5) comprises a second hydraulic rod (501) fixedly mounted on the upper surface of the housing (2); the output end of the second hydraulic rod (501) is fixedly connected to a moving plate (502); a slide plate (503) is slidably arranged on the lower surface of the moving plate (502); a mounting rod (504) is fixedly connected to the lower surface of the slide plate (503); a rolling roller (505) is rotatably connected to the surface of the mounting rod (504); a connecting plate (506) is fixedly connected to one side of the slide plate (503); a cylinder (507) is fixedly mounted 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); and the moving block (509) is fixedly connected to one side of the connecting plate (506); The screening auxiliary component (7) comprises two right-angle plates (701) fixedly connected to one side of the moving plate (502), one side of each of the two right-angle plates (701) is provided with a mounting groove (702), the inner walls of the two mounting grooves (702) are rotatably connected to a plurality of one-way shafts (703), the surfaces of the plurality of one-way shafts (703) are fixedly connected to arc-shaped teeth (704), the inner wall of the housing (2) is rotatably connected to a rotating drum (705), the surface of the rotating drum (705) is respectively fixedly connected to two groups of helical teeth (706) and two groups of half gears (707), the two groups of helical teeth (706) are respectively meshed with the corresponding two groups of arc-shaped teeth (704), the inner walls of both sides of the housing (2) are respectively fixedly connected to a fixing plate 1 (11), and the opposite surfaces of the two fixing plates 1 (11) are respectively fixedly connected to a plurality of fixing balls (13).

2. The crushing and screening equipment based on the slow-descending building demolition platform according to claim 1 is characterized in that: The crushing and screening assembly (5) further comprises a connecting block (510) fixedly connected to the upper surface of the slotted plate (508), the upper surface of the connecting block (510) being fixedly connected to a push plate (511), the lower surface of the movable plate (502) being provided with two dovetail grooves (512), the inner walls of the two dovetail grooves (512) being slidably connected to dovetail blocks (513), the lower surfaces of the two dovetail blocks (513) being fixedly connected to the upper surface of the slide plate (503) respectively.

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

4. The crushing and screening equipment based on the slow-descending building demolition platform according to claim 3 is characterized by: One end of the rectangular tube (601) is fixedly connected to a water outlet bellows (603) and a connecting hose (604), respectively; one 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 bellows (603) and the connecting hose (604); one side of the slide plate (503) is fixedly connected to a water outlet box (606); one end of the water outlet bellows (603) away from the rectangular tube (601) is fixedly connected to one side of the water outlet box (606); one side of the water outlet box (606) is fixedly connected to a brush plate (607).

5. The crushing and screening equipment based on the slow-descending building demolition platform according to claim 1 is characterized in that: The pre-uniformization component (4) comprises an adapter block (401) adapted to be 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 one (403) and a plurality of compression springs two (404); and the ends of the plurality of compression springs one (403) and the plurality of compression springs two (404) away from the inner walls of the U-shaped frames (402) are fixedly connected to the same screening frame (405).

6. The crushing and screening equipment based on the slow-descending building demolition platform according to claim 5 is characterized by: The lower surface of the sub-screen frame (405) is fixedly connected to a plurality of Z-shaped rods (406), the bottom ends of the plurality of Z-shaped rods (406) are fixedly connected to follower balls (407), the inner walls on both sides of the box body (2) are fixedly connected to fixed plates 2 (12), and the opposite surfaces of the two fixed plates 2 (12) are fixedly connected to a plurality of fixed balls (13).

7. The crushing and screening equipment based on the slow-descending building demolition platform according to claim 1 is characterized by: The driving assembly (3) comprises a mounting plate (301) fixedly connected to one side of the box body (2); a hydraulic rod 1 (302) is fixedly mounted on one side of the mounting plate (301); an output end of the hydraulic rod 1 (302) passes through an inner wall of one side of the box body (2) and is fixedly connected to a rectangular plate (303).

8. The crushing and screening equipment based on the slow-descending building demolition platform according to claim 7 is characterized by: Two fixed cylinders (308) are fixedly connected to one side of the rectangular plate (303), the inner walls of the two fixed cylinders (308) are fixedly connected to springs (309), the inner walls of the two fixed cylinders (308) are slidably connected to telescopic rods (310), and one end of the two telescopic rods (310) is fixedly connected to one end of the corresponding two springs (309), respectively.

9. The crushing and screening equipment based on the slow-descending building demolition platform according to claim 8 is characterized by: One end of the two telescopic rods (310) is fixedly connected to the same driving plate (304), one side of the driving plate (304) is provided with two sliding grooves (305), the inner walls of the two sliding grooves (305) are slidably connected with sliders (306), one side of the two sliders (306) is respectively fixedly connected to one side of the screening frame (405), and the lower surface of the driving plate (304) is fixedly connected to two right-angle racks (307), and the two right-angle racks (307) are respectively meshed with the corresponding two half gears (707).

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