A system for preparing waste concrete

Abstract

The present invention discloses a system for preparing waste concrete, which relates to the technical field of waste concrete recycling. It includes a base, a conveying frame is connected to the middle position of the top of the base by bolts, and a jaw crusher is connected to the position on one side of the conveying frame corresponding to the top of the base by bolts. A flat conveying mechanism is provided on the top of the conveying frame, which drives the transmission gear and the positioning rod to rotate by utilizing the rotation of the rotating shaft and the transmission belt, and then drives the cross bar and the inner cylinder to rotate inside the material transfer barrel through the cooperation of the transmission wheel and the crawler. The structure of the present invention is scientific and reasonable, and it is safe and convenient to use. A flat conveying mechanism is provided, which drives the rotating shaft and the transmission belt to rotate by a driving motor, and drives the transmission gear and the positioning rod to rotate, and then transmits power through the transmission wheel and the crawler, drives the cross bar and the inner cylinder to rotate inside the material transfer barrel, so that the storage trough moves to the bottom of the feed hopper, so that the waste concrete inside the feed hopper can enter the storage trough conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of waste concrete recycling, in particular to a waste concrete preparation system. Background Art

[0002] Concrete is a general term for engineering composite materials in which aggregates are bonded into a whole by cementitious materials. Waste materials are generated during the concrete preparation process, and most of these waste materials can be recycled. The waste concrete is crushed, screened, and cleaned by a crusher and then used as recycled aggregate to avoid waste of resources. For example, a waste material treatment device for concrete production is currently disclosed, with application number (202320597995.9). This patent can guide the dust-containing gas in the protective cover through the exhaust fan inside the protective cover, and then discharge it after being filtered by the filter bag, effectively preventing the spread of dust generated during crushing;

[0003] However, this patent does not transport the waste concrete evenly during crushing, causing uneven wear of the crushing rollers inside the crushing device, affecting the subsequent crushing effect. It also does not grind the waste concrete more finely, making it easy for residual particles to remain, affecting the quality of subsequent concrete aggregates. Therefore, in order to avoid the above technical problems, we need to provide a waste concrete preparation system to overcome the above defects in the prior art. Summary of the Invention

[0004] The present invention provides a waste concrete preparation system, which can effectively solve the problems raised in the above-mentioned background technology, such as the lack of uniform transportation of waste concrete, uneven wear of the crushing rollers inside the crushing device, affecting the subsequent crushing effect, and the lack of more detailed grinding of the waste concrete, which easily leads to residual particles and affects the quality of subsequent concrete aggregates.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a waste concrete preparation system, comprising a base, a conveying frame connected to the middle position of the top of the base, a jaw crusher connected to the top of the base corresponding to the side of the conveying frame by bolts, and a flat conveying mechanism provided on the top of the conveying frame;

[0006] The rotation of the rotating shaft and the conveyor belt drives the transmission gear and the positioning rod to rotate, and then the cooperation of the transmission wheel and the crawler drives the cross bar and the inner cylinder to rotate inside the conveying cylinder, so that the storage trough moves to the bottom of the feed hopper, making it convenient for the waste concrete inside the feed hopper to enter the storage trough. Then, because the cross bar continuously drives the inner cylinder to rotate, the storage trough filled with waste concrete rotates away, and during the rotation process, the arc block loses the support of the arc ring, and then the support spring pushes the extrusion plate to move, thereby squeezing and leveling the waste concrete inside the storage trough.

[0007] A crushing and adjusting mechanism is provided at the top of the base corresponding to the other side of the conveyor frame;

[0008] Start the dual-axis motor to drive the transmission rod to rotate, and through the cooperation of the gear ring, drive the driving gear to rotate. At the same time, through the cooperation of the sleeve and the connecting rod, a connecting rod is formed, which makes it convenient for the driving gear to drive the turntable to rotate, and push the rotating rod and the crushing roller to rotate, crushing the waste concrete entering the crushing box. The crushed waste concrete falls on the screening rack and is screened, so that the waste concrete with larger particles falls into the recycling box for collection and secondary crushing, while the waste concrete passing through the screening rack is stored in the collection box.

[0009] According to the above technical solution, the paving conveying mechanism includes a fixed frame;

[0010] Material toggling mechanism, its both ends are connected with the material transporting mechanism, and its both ends are connected with the material transporting mechanism, and its both ends are connected with the material transporting mechanism, and its both ends are connected with the material transporting mechanism, and its both ends are connected with the material transporting mechanism.

[0011] The inside of the conveyor frame is equidistantly connected to a rotating shaft, and a conveyor belt is sleeved on the outside of the rotating shaft. Positioning rods are rotatably connected at both ends of the conveyor frame corresponding to the bottom position of the fixed frame. Transmission gears are fixedly sleeved on the outsides of the two positioning rods and the two ends of the outside of the rotating shaft. Transmission wheels are fixedly sleeved on the outsides of the two positioning rods and the two ends of the outside of the cross bar, and crawler tracks are sleeved on the outsides of the two transmission wheels on the same side.

[0012] The top end of the swing arm is symmetrically connected to the swing arm by bolts, and the bottom ends of the two swing arm are symmetrically connected to the bottom positions of the swing arm by bolts. The scraper is rotatably connected to the vertical rod corresponding to the position of one side of the horizontal frame at two adjacent sides of the swing arm. The outer sides of the two vertical rods are both rotatably connected to the vertical rod by threaded sleeves, and the bottom ends of the lifting plate are connected to the baffle by bolts, and the other side of one end of the conveying frame is connected to the driving motor by bolts.

[0013] According to the above technical solution, the top of the feed hopper fits with the bottom of the discharge channel, the outer side of the inner cylinder is rotatably connected to the inner wall of the transfer cylinder, both ends of the limit groove pass through both ends of the inner cylinder, and both ends of the extrusion plate fit with the inner wall of the storage trough.

[0014] According to the above technical solution, the two adjacent transmission gears mesh with each other, the transmission gear meshes with the driven gear, and the diameter of the driven gear is smaller than that of the transmission gear. The two traction plates are symmetrically installed on both sides of the conveyor frame.

[0015] According to the above technical solution, one end of the traction steel cable passes through the cross frame and is fixedly connected to the top of the traction block, and through holes are opened at both ends of the cross frame at positions corresponding to the outer sides of the traction steel cable.

[0016] According to the above technical solution, a slope is symmetrically provided at one end of the scraper, the length of the baffle is smaller than the distance between the inner walls of the conveying frame, the output shaft of the drive motor is fixedly connected to one end of the rotating shaft, and the drive motor is powered by an external power supply.

[0017] According to the above technical solution, the crushing and regulating mechanism includes a crushing box;

[0018] The top of the base is connected to a crushing box by bolts at a position corresponding to the other side of the conveying frame, and a material guide plate is symmetrically clamped at the top position of the inner wall of the crushing box, and rectangular grooves are provided at both ends of the crushing box, and partitions are clamped at the center positions of the two rectangular grooves, and the top and bottom of both ends of the partition are connected to push rods by threads, and one end of the two push rods on the same side is rotatably connected to the slide, and the two slides on the same side of the two rectangular grooves are rotatably connected between the rotating rods, and the outer sides of the two rotating rods corresponding to the inner positions of the crushing box are fixedly sleeved with crushing rollers, and the two ends of the rotating rods are clamped with turntables, and the other end of the turntable is rotatably connected to the connecting rod, and the outer side of the connecting rod is provided with a tooth groove;

[0019] The two ends of the crushing box are symmetrically connected to the bottom of the rectangular groove at both ends, and the two driving gears are rotatably connected to one end of the sleeve. The outer sides of the two sleeves are equidistantly connected to the push rods through threads, and the other ends of the push rods are rotatably connected to the gear plate at the position corresponding to the inner side of the sleeve. The inner side of the crushing box is connected to the position corresponding to one side of the driving gear by bolts. The two ends of the output shaft of the dual-axis motor are clamped with a transmission rod, and the outer sides of the two transmission rods are fixedly sleeved with a gear ring.

[0020] A bracket is clamped at the top of the base corresponding to the bottom position of the crushing box, and a movable rod is equidistantly and movably connected to the top of the bracket. A screening rack is clamped at the top of the movable rod, and tensioning springs are clamped at the outer positions of the movable rods corresponding to the screening rack and the bracket. The opposite ends of the two transmission rods are clamped with swing arms, and the other ends of the two swing arms are rotatably connected to a rotating plate. The top of the base is slidably connected to a collection box at the bottom position of the screening rack, and the top of the base is slidably connected to a recycling box at a position corresponding to one side of the collection box.

[0021] According to the above technical solution, the width of the inner wall of the crushing box is greater than the width of the inner wall of the conveying frame, the outer side of the slide is slidably connected to the inner wall of the rectangular groove, and both ends of the rotating rod pass through the slide.

[0022] According to the above technical solution, the two adjacent driving gears are engaged with each other, one end of the connecting rod is embedded in the sleeve, the outer side of the connecting rod is slidingly connected to the inner wall of the sleeve, and the tooth plate is engaged with the tooth groove, the driving gear is engaged with the gear ring, and the dual-axis motor is powered by an external power supply.

[0023] According to the above technical solution, the screening rack is tilted, the other end of the rotating plate is rotatably connected to one end of the screening rack, and one end of the screening rack extends to the top of the recovery box.

[0024] Compared with the prior art, the present invention has the following beneficial effects: the structure of the present invention is scientific and reasonable, and it is safe and convenient to use:

[0025] 1. A flat conveying mechanism is set up. The driving motor drives the rotating shaft and the conveyor belt to rotate, and drives the transmission gear and the positioning rod to rotate. The power is then transmitted through the transmission wheel and the crawler belt to drive the cross bar and the inner drum to rotate inside the transfer drum, so that the storage trough moves to the bottom of the feed hopper, which is convenient for the waste concrete inside the feed hopper to enter the storage trough. Then, because the cross bar continues to drive the inner drum to rotate, the storage trough filled with waste concrete continues to rotate and leaves the bottom of the feed hopper. At the same time, during the rotation of the inner drum, the arc block loses the support of the arc ring, so that the support spring pushes the extrusion plate to move, which squeezes and flattens the waste concrete inside the storage trough, forcing the waste concrete to be evenly distributed between the extrusion plate and the transfer drum, and then evenly transported to the conveyor belt through the discharge hopper. At the same time, because four storage troughs are opened on the outside of the inner drum, the waste concrete can be transported continuously and intermittently, ensuring the transportation efficiency. At the same time, too much transportation at one time will affect the subsequent grinding effect.

[0026] In addition, the driven gear is driven to rotate by the transmission gear. At the same time, because the traction plates are staggered up and down on the two driven gears, one driven gear pulls the traction block to slide to one side through the traction plate, and the other driven gear pushes the traction block to slide to the other side through the traction plate. Then, the swing plate and the scraper are pulled by the traction cable to slide back and forth inside the cross frame, spreading the waste concrete on the conveyor belt. The baffle is used to block and cooperate to further spread the waste concrete evenly on the conveyor belt to prevent it from piling up, so that the waste concrete can evenly enter the crushing box to prevent uneven wear of the crushing roller.

[0027] 2. A crushing and regulating mechanism is set up. The filtered waste concrete is guided to the space between the two crushing rollers through the guide plate. Then the dual-axis motor is started to rotate the transmission rod, and the drive gear is rotated through the gear ring. At the same time, the sleeve and the connecting rod are combined to form a connecting rod, which facilitates the transmission of power, drives the turntable, the rotating rod and the crushing roller to rotate, and crushes the waste concrete entering the crushing box, making it convenient to prepare the waste concrete into new concrete filling aggregate.

[0028] In addition, the swing arm is driven to rotate by the transmission rod, and the screening frame and the movable rod are pulled up and down by the cooperation of the rotating plate, which improves the screening effect. The waste concrete with larger particles is blocked and then falls into the recycling box for easy collection and re-crushing. The waste concrete that passes through the screening frame is stored in the collection box for subsequent preparation into aggregate.

[0029] In addition, by rotating the top rod to move the tooth plate, the tooth plate is separated from the tooth groove, the limit between the sleeve and the connecting rod is released, and the connecting rod is facilitated to slide. Then the push rod is rotated to move the slide along the rectangular groove, and the distance between the two crushing rollers is changed as needed, which facilitates the adjustment of the crushing effect and improves adaptability.

[0030] In summary, the crushed waste concrete is evenly spread through the flattening and conveying mechanism to prevent the waste concrete from piling up, and then when the waste concrete is crushed by the crushing and regulating mechanism, the concentration and blockage are prevented, and at the same time, the uniformity of the internal crushing roller wear is improved, the crushing effect is guaranteed, the waste concrete is ground more finely, and the quality of the aggregate is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0032] In the attached figure:

[0033] Figure 1 It is a structural schematic diagram of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the flat-laying conveying mechanism of the present invention;

[0035] Figure 3 This is a schematic diagram of the installation structure of the arc ring of the present invention;

[0036] Figure 4 Schematic diagram of the installation structure of the limit plate of the present invention;

[0037] Figure 5 This is a schematic diagram of the installation structure of the scraper of the present invention;

[0038] Figure 6 It is a schematic diagram of the installation structure of the rotating plate of the present invention;

[0039] Figure 7 Schematic diagram of the installation structure of the dual-axis motor of the present invention;

[0040] Figure 8 It is a structural schematic diagram of the crushing and regulating mechanism of the present invention;

[0041] Figure 9 This invention Figure 8 Schematic diagram of the structure of area A in the middle.

[0042] Numbers in the figure: 1, base; 2, conveyor frame; 3, jaw crusher;

[0043] 4. Flat conveying mechanism; 401. Fixed frame; 402. Transfer cylinder; 403. Feed hopper; 404. Discharge channel; 405. Crossbar; 406. Inner cylinder; 407. Storage trough; 408. Sliding rod; 409. Extrusion plate; 410. Support spring; 411. Limiting groove; 412. Limiting plate; 413. Arc block; 414. Arc ring; 415. Discharge hopper; 416. Rotating shaft; 417, conveyor belt; 418, positioning rod; 419, transmission gear; 420, transmission wheel; 421, crawler track; 422, driven gear; 423, traction block; 424, traction plate; 425, cross frame; 426, swing plate; 427, traction cable; 428, adjustment rod; 429, scraper; 430, vertical pole; 431, lifting plate; 432, baffle; 433, drive motor;

[0044] 5. Crushing and regulating mechanism; 501. Crushing box; 502. Guide plate; 503. Rectangular groove; 504. Partition; 505. Push rod; 506. Slide plate; 507. Rotating rod; 508. Crushing roller; 509. Turntable; 510. Connecting rod; 511. Tooth groove; 512. Driving gear; 513. Sleeve; 514. Push rod; 515. Tooth plate; 516. Double-axis motor; 517. Transmission rod; 518. Gear ring; 519. Bracket; 520. Movable rod; 521. Screening rack; 522. Swing arm; 523. Rotating plate; 524. Collecting box; 525. Recycling box; 526. Tensioning spring. DETAILED DESCRIPTION

[0045] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0046] Example: Figure 1-9 As shown, the present invention provides a technical solution, a waste concrete preparation system, including a base 1, a conveyor frame 2 is connected to the middle position of the top of the base 1 by bolts, and a jaw crusher 3 is connected to the side position of the top of the base 1 corresponding to the conveyor frame 2 by bolts, and a flat conveying mechanism 4 is provided on the top of the conveyor frame 2. The rotation of the rotating shaft 416 and the conveyor belt 417 drives the transmission gear 419 and the positioning rod 418 to rotate, and then drives the cross bar 405 and the inner cylinder 4 through the cooperation of the transmission wheel 420 and the crawler 421. 06 rotates inside the transfer cylinder 402, causing the storage trough 407 to move to the bottom of the feed hopper 403, making it easier for the waste concrete inside the feed hopper 403 to enter the storage trough 407. Then, because the cross bar 405 continuously drives the inner cylinder 406 to rotate, the storage trough 407 filled with waste concrete rotates away, and during the rotation process, the arc block 413 loses the support of the arc ring 414, and then the support spring 410 pushes the extrusion plate 409 to move, thereby squeezing and leveling the waste concrete inside the storage trough 407.

[0047] A crushing and regulating mechanism 5 is provided at the top of the base 1 at the position on the other side of the conveying frame 2. The dual-axis motor 516 is started to drive the transmission rod 517 to rotate, and through the cooperation of the gear ring 518, the driving gear 512 is driven to rotate. At the same time, the sleeve 513 and the connecting rod 510 cooperate to form a connecting rod, which facilitates the driving gear 512 to drive the turntable 509 to rotate, and pushes the rotating rod 507 and the crushing roller 508 to rotate, crushing the waste concrete entering the crushing box 501. The crushed waste concrete falls on the screening rack 521 for screening, so that the waste concrete with larger particles falls into the collection box 525 for secondary crushing, while the waste concrete passing through the screening rack 521 is stored in the collection box 524.

[0048] The paving conveying mechanism 4 includes a fixed frame 401, a material transfer cylinder 402, a feed hopper 403, a discharge channel 404, a cross bar 405, an inner cylinder 406, a storage trough 407, a slide bar 408, an extrusion plate 409, a support spring 410, a limit groove 411, a limit plate 412, an arc block 413, an arc ring 414, a discharge hopper 415, a rotating shaft 416, a conveyor belt 417, a positioning rod 418, a transmission gear 419, a transmission wheel 420, a crawler track 421, a driven gear 422, a traction block 423, a traction plate 424, a cross frame 425, a swing plate 426, a traction cable 427, an adjusting rod 428, a scraper 429, a vertical rod 430, a lifting plate 431, a baffle 432 and a driving motor 433;

[0049] The top of the conveying frame 2 is symmetrically connected to the fixed frame 401 by bolts, and the two fixed frames 401 are connected with a transfer cylinder 402 by bolts. The top of the transfer cylinder 402 is clamped with a feed hopper 403, and one end of the jaw crusher 3 is clamped with a discharge channel 404 at the top position of the feed hopper 403. The two fixed frames 401 are rotatably connected with a cross bar 405. The outer side of the cross bar 405 is fixedly sleeved with an inner cylinder 406 at a position corresponding to the inner part of the transfer cylinder 402, and the outer side of the inner cylinder 406 is equidistantly provided with a storage trough 407. One end of the storage trough 407 is equidistantly connected with a slide bar 408. One end of the slide bar 408 is clamped with an extrusion plate 409 at a position corresponding to the inner part of the storage trough 407, and the slide bar 408 corresponds to the extrusion plate 409 and the storage trough 407. The outer positions are all clamped with support springs 410, and the inner part of the inner cylinder 406 is equidistantly provided with limit grooves 411 at the outer positions of the corresponding cross bars 405. One end of the sliding rod 408 is clamped with a limit plate 412 at the inner position corresponding to the limit groove 411, and both ends of the limit plate 412 are clamped with arc blocks 413. Both ends of the transfer cylinder 402 are clamped with arc rings 414 at the outer positions of the inner cylinder 406, and the bottom end of the transfer cylinder 402 is clamped with a discharge hopper 415. In order to facilitate the transportation of waste concrete, the top of the feed hopper 403 is fitted with the bottom end of the discharge channel 404, and the outer side of the inner cylinder 406 is rotatably connected to the inner wall of the transfer cylinder 402. Both ends of the limit groove 411 pass through both ends of the inner cylinder 406, and both ends of the extrusion plate 409 are fitted with the inner wall of the storage trough 407.

[0050] The conveyor frame 2 is equidistantly connected to a rotating shaft 416 for rotation inside, and a transmission belt 417 is sleeved on the outside of the rotating shaft 416. Positioning rods 418 are rotatably connected to the bottom position of the fixed frame 401 at both ends of the conveyor frame 2. Transmission gears 419 are fixedly sleeved on the outsides of the two positioning rods 418 and the two ends of the outside of the rotating shaft 416. Transmission wheels 420 are fixedly sleeved on the outsides of the two positioning rods 418 and the two ends of the outside of the cross bar 405, and the two transmission wheels 420 on the same side are sleeved on the outsides of the two transmission wheels 420. In order to facilitate the back-and-forth sliding of the swing plate 426, the two adjacent transmission gears 419 are meshed with each other, and the transmission gear 419 is meshed with the driven gear 422. The diameter of the driven gear 422 is smaller than the diameter of the transmission gear 419. The two traction plates 424 are symmetrically installed on both sides of the conveyor frame 2.

[0051] The two ends of the conveying frame 2 correspond to the position of one side of a transmission gear 419, and are rotatably connected to a driven gear 422. The two ends of the conveying frame 2 correspond to the position of one side of the driven gear 422, and are slidably connected to a traction block 423. One end of the traction block 423 and one end of the driven gear 422 are respectively rotatably connected to a traction plate 424. The top of the conveying frame 2 corresponds to the top position of the traction block 423 and is connected to a cross frame 425 by bolts. A swing plate 426 is movably connected inside the cross frame 425, and a traction cable 427 is clamped at both ends of the swing plate 426. In order to facilitate the sliding of the traction cable 427, one end of the traction cable 427 passes through the cross frame 425 and is fixedly connected to the top of the traction block 423. Through holes are provided at the outer positions of the traction cables 427 at both ends of the cross frame 425. The top of the swing plate 426 The ends are symmetrically connected with adjusting rods 428 by bolts, and the bottom ends of the two adjacent adjusting rods 428 correspond to the bottom positions of the swing plates 426 and are rotatably connected with scrapers 429. The top of the conveying frame 2 is equidistantly rotatably connected with vertical rods 430 at a position corresponding to one side of the horizontal frame 425. The outer sides of the two vertical rods 430 are both connected with lifting plates 431 by threaded sleeves. The bottom ends of the lifting plates 431 are connected with baffles 432 by bolts. The other side position of one end of the conveying frame 2 is connected with a driving motor 433 by bolts. In order to facilitate the flattening of the waste concrete, one end of the scraper 429 is symmetrically provided with an inclined surface. The length of the baffle 432 is less than the distance between the inner walls of the conveying frame 2. The output shaft of the driving motor 433 is fixedly connected to one end of the rotating shaft 416, and the driving motor 433 is powered by an external power supply.

[0052] A crushing and regulating mechanism 5 is provided at the top of the base 1 at a position on the other side of the conveyor frame 2. The crushing and regulating mechanism 5 includes a crushing box 501, a guide plate 502, a rectangular groove 503, a partition 504, a push rod 505, a slide plate 506, a rotating rod 507, a crushing roller 508, a turntable 509, a connecting rod 510, a tooth groove 511, a driving gear 512, a sleeve 513, a push rod 514, a tooth plate 515, a dual-axis motor 516, a transmission rod 517, a gear ring 518, a bracket 519, a movable rod 520, a screening frame 521, a swing arm 522, a rotating plate 523, a collection box 524, a recovery box 525 and a tensioning spring 526.

[0053] The top of the base 1 is connected to the other side of the conveyor frame 2 by bolts, and the guide plate 502 is symmetrically clamped at the top of the inner wall of the crushing box 501. Rectangular grooves 503 are opened at both ends of the crushing box 501. The center positions of the two rectangular grooves 503 are clamped with partitions 504. The top and bottom of both ends of the partition 504 are connected to push rods 505 by threads. One end of the two push rods 505 on the same side is rotatably connected to the slide 506. Between the two slides 506 on the same side of the two rectangular grooves 503 The two rotating rods 507 are rotatably connected to each other, and the outer sides of the two rotating rods 507 are fixedly sleeved with crushing rollers 508 at positions inside the crushing box 501. The two rotating rods 507 are clamped with a turntable 509 at both ends, and the other ends of the turntable 509 are rotatably connected to the connecting rod 510. The outer sides of the connecting rod 510 are provided with tooth grooves 511. In order to facilitate the sliding of the slide plate 506, the width of the inner wall of the crushing box 501 is greater than the width of the inner wall of the conveying frame 2. The outer side of the slide plate 506 is slidably connected to the inner wall of the rectangular groove 503. Both ends of the rotating rod 507 pass through the slide plate 506.

[0054] The two ends of the crushing box 501 are symmetrically connected to the bottom positions of the rectangular grooves 503, and the two driving gears 512 are symmetrically connected to each other at one end of the two driving gears 512. The outer sides of the two sleeves 513 are equidistantly connected to the top rods 514 through threads, and the other ends of the top rods 514 are rotatably connected to the gear plates 515 corresponding to the internal positions of the sleeves 513. The inside of the crushing box 501 is connected to the position on one side of the driving gear 512 by bolts. The two ends of the output shaft of the dual-axis motor 516 are clamped with transmission rods 517, and the outer sides of the two transmission rods 517 are fixedly sleeved with gear rings 518. In order to facilitate power transmission, the two adjacent driving gears 512 are meshed with each other, one end of the connecting rod 510 is embedded in the sleeve 513, the outer side of the connecting rod 510 is slidably connected to the inner wall of the sleeve 513, and the gear plate 515 is meshed with the tooth groove 511, the driving gear 512 is meshed with the gear ring 518, and the dual-axis motor 516 is powered by an external power supply.

[0055] A bracket 519 is clamped at the top of the base 1 corresponding to the bottom position of the crushing box 501, and a movable rod 520 is equidistantly and movably connected to the top of the bracket 519. A screening rack 521 is clamped at the top of the movable rod 520, and a tensioning spring 526 is clamped at the outer position of the movable rod 520 corresponding to the screening rack 521 and the bracket 519. The opposite ends of the two transmission rods 517 are clamped with swing arms 522, and the other ends of the two swing arms 522 are rotatably connected to a rotating plate 523. A collecting box 524 is slidably connected to the bottom position of the screening rack 521 corresponding to the top of the base 1, and a recycling box 525 is slidably connected to the side position of the collecting box 524 corresponding to the top of the base 1. In order to facilitate the screening of the crushed waste concrete, the screening rack 521 is tilted, and the other end of the rotating plate 523 is rotatably connected to one end of the screening rack 521, and one end of the screening rack 521 extends to the top of the recycling box 525.

[0056] The working principle and use process of the present invention are as follows: First, the waste concrete is fed into the jaw crusher 3 for crushing, so that the large pieces of waste concrete are broken into uniform small pieces, and then discharged into the feed hopper 403 through the discharge channel 404. At the same time, the driving motor 433 drives the rotating shaft 416 and the conveyor belt 417 to rotate, forcing the rotating shaft 416 at the other end of the conveyor frame 2 to rotate, and uses the cooperation of the transmission gear 419 to transmit power, driving the positioning rod 418 to rotate, and then through the cooperation of the transmission wheel 420 and the crawler 421, the power is again The force is transmitted, driving the crossbar 405 to rotate, and causing the crossbar 405 to rotate with the inner cylinder 406 inside the transfer cylinder 402, changing the position of the storage trough 407, causing the storage trough 407 to move to the bottom of the feed hopper 403, releasing the seal on the feed hopper 403, and facilitating the waste concrete inside the feed hopper 403 to enter the storage trough 407. Then, because the crossbar 405 continues to drive the inner cylinder 406 to rotate, the storage trough 407 filled with the waste concrete rotates away from the bottom of the feed hopper 403, and the feed hopper 403 is sealed again;

[0057] In addition, during the process of the inner cylinder 406 rotating with the storage trough 407, the arc block 413 rotates and separates from the arc ring 414, releasing the support of the arc ring 414 on the arc block 413, and then the squeezing plate 409 and the sliding rod 408 are pushed to move through the expansion and contraction characteristics of the support spring 410, thereby squeezing the waste concrete inside the storage trough 407 and forcing the waste concrete to be evenly distributed between the squeezing plate 409 and the transfer cylinder 402. When the inner cylinder 406 rotates with the storage trough 407 filled with waste concrete to the top of the discharge hopper 415, the storage trough 407 loses the obstruction of the transfer cylinder 402, thereby facilitating the waste concrete inside to pass through the discharge hopper 415 and evenly fall onto the conveyor belt 417, thereby preventing accumulation. The discharged storage trough 407 moves back to the bottom of the feed hopper 403 as the inner cylinder 406 rotates, and this cycle is repeated to continuously and intermittently transport the waste concrete.

[0058] Then, during the process of conveying the waste concrete by the conveyor belt 417, the driven gear 422 is driven to rotate by the transmission gear 419, and then the traction block 423 is pulled to slide on both ends of the conveying frame 2 through the cooperation of the traction plate 424. At the same time, because the traction plates 424 are staggered up and down on one end of the two driven gears 422, one driven gear 422 pulls the traction block 423 to slide to one side through the traction plate 424, and the other driven gear 422 pushes the traction block 423 to slide to the other side through the traction plate 424. Then, the swing plate 426 and the scraper 429 are pulled to slide back and forth inside the horizontal frame 425 through the traction cable 427 to spread the waste concrete on the conveyor belt 417. In addition, the blocking cooperation of the baffle 432 further makes the waste concrete evenly spread on the conveyor belt 417 to prevent it from piling up.

[0059] Next, the paved waste concrete is transported to the interior of the crushing box 501 via the conveyor belt 417 and guided by the guide plate 502 to the two crushing rollers 508 of the conveyor belt. Then, the dual-axis motor 516 is started to drive the transmission rod 517 to rotate, and through the cooperation of the gear ring 518, the driving gear 512 is driven to rotate, and the two adjacent driving gears 512 are caused to rotate relative to each other. Then, through the cooperation of the sleeve 513 and the connecting rod 510, a connecting rod is formed, which drives the turntable 509 to rotate, forcing the turntable 509 to push the rotating rod 507 and the crushing rollers 508 to rotate, thereby crushing the waste concrete entering the crushing box 501, making it easier to prepare the waste concrete into new concrete filling aggregate.

[0060] Next, the crushed waste concrete falls onto the screening rack 521 for screening. At the same time, the transmission rod 517 drives the swing arm 522 to rotate, and the rotating plate 523 cooperates to pull the screening rack 521 and the movable rod 520 to move up and down, thereby improving the screening effect. The waste concrete with larger particles is blocked and then falls into the recovery box 525 through the screening rack 521 for easy collection and re-crushing. The waste concrete that passes through the screening rack 521 is stored in the collection box 524 for subsequent preparation into aggregate.

[0061] Finally, by rotating the top rod 514 to move the tooth plate 515, the tooth plate 515 is separated from the tooth groove 511, and the limit between the sleeve 513 and the connecting rod 510 is released, which facilitates the sliding of the connecting rod 510. Then, the push rod 505 is rotated to move the slide plate 506 along the rectangular groove 503, and the distance between the two crushing rollers 508 is changed as needed, which facilitates the adjustment of the crushing effect and improves the adaptability. In addition, the top rod 514 is rotated to push the tooth plate 515 to move, embedding it into the tooth groove 511, and re-limiting the connecting rod 510, so that the connecting rod 510 and the sleeve 513 form a connecting rod to maintain the transmission of power.

[0062] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A system for preparing waste concrete, comprising a base (1), characterized in that: A conveying frame (2) is connected to the middle position of the top of the base (1), and a jaw crusher (3) is connected to the top of the base (1) at a position corresponding to one side of the conveying frame (2) through bolts, and a flat conveying mechanism (4) is provided at the top of the conveying frame (2); The paving conveying mechanism (4) comprises a fixing frame (401); The top of the conveying frame (2) is symmetrically connected to a fixed frame (401), and a material transfer cylinder (402) is connected between the two fixed frames (401) by bolts. The top of the material transfer cylinder (402) is clamped with a feed hopper (403), and a discharge channel (404) is clamped at a position corresponding to the top of the feed hopper (403) at one end of the jaw crusher (3). The inside of the two fixed frames (401) is rotatably connected to a cross bar (405), and the outer side of the cross bar (405) is fixedly sleeved with an inner cylinder (406) at a position corresponding to the inner side of the material transfer cylinder (402), and a material storage trough (407) is equidistantly opened on the outer side of the inner cylinder (406). One end of the material storage trough (407) is equidistantly connected to a slide bar (408). The slide bar (40 8) An extrusion plate (409) is clamped at an inner position corresponding to the material storage trough (407) at one end, and a support spring (410) is clamped at an outer position of the slide bar (408) corresponding to the extrusion plate (409) and the material storage trough (407). A limiting groove (411) is equidistantly provided at an outer position corresponding to the cross bar (405) inside the inner cylinder (406). A limiting plate (412) is clamped at an inner position corresponding to the limiting groove (411) at one end of the slide bar (408). Arc blocks (413) are clamped at both ends of the limiting plate (412). Arc rings (414) are clamped at both ends of the material transfer cylinder (402) at an outer position corresponding to the inner cylinder (406). A discharge hopper (415) is clamped at the bottom end of the material transfer cylinder (402). The conveying frame (2) is equidistantly connected to a rotating shaft (416) in rotation, and a conveyor belt (417) is sleeved on the outside of the rotating shaft (416). Positioning rods (418) are rotatably connected at both ends of the conveying frame (2) corresponding to the bottom of the fixed frame (401). Transmission gears (419) are fixedly sleeved on the outsides of the two positioning rods (418) and the two ends of the outside of the rotating shaft (416). Transmission wheels (420) are fixedly sleeved on the outsides of the two positioning rods (418) and the two ends of the outside of the crossbar (405), and crawler belts (421) are sleeved on the outsides of the two transmission wheels (420) on the same side. The rotation of the rotating shaft (416) and the conveyor belt (417) drives the transmission gear (419) and the positioning rod (418) to rotate, and then the cross bar (405) and the inner cylinder (406) are driven to rotate inside the conveying cylinder (402) through the cooperation of the transmission wheel (420) and the crawler (421), so that the storage trough (407) moves to the bottom of the feed hopper (403), so that the waste concrete inside the feed hopper (403) can enter the storage trough (407). Then, because the cross bar (405) continuously drives the inner cylinder (406) to rotate, the storage trough (407) filled with the waste concrete rotates away, and during the rotation process, the arc block (413) loses the support of the arc ring (414), and then the support spring (410) pushes the extrusion plate (409) to move, and the waste concrete inside the storage trough (407) is squeezed and leveled; A crushing and adjusting mechanism (5) is provided at a position on the other side of the top end of the base (1) corresponding to the conveying frame (2).

2. The system for preparing waste concrete according to claim 1, characterized in that: The two ends of the conveying frame (2) are connected to the driven gear (422) at the position corresponding to one side of the transmission gear (419), and the two ends of the conveying frame (2) are connected to the traction block (423) at the position corresponding to one side of the driven gear (422) in a sliding manner. One end of the traction block (423) and one end of the driven gear (422) are respectively connected to the traction plate (424). The top of the conveying frame (2) is connected to the cross frame (425) by bolts at the top position corresponding to the top of the traction block (423). The cross frame (425) is movably connected to the swing plate (426), and the two ends of the swing plate (426) are clamped with the traction cable (424). 27), the top of the swing plate (426) is symmetrically connected to the adjusting rod (428) by bolts, and the bottom ends of the two adjacent adjusting rods (428) are rotatably connected to the scraper (429) at the position corresponding to the bottom of the swing plate (426), and the top of the conveying frame (2) is rotatably connected to the vertical rod (430) at a position corresponding to one side of the horizontal frame (425), and the outer sides of the two vertical rods (430) are both connected to the lifting plate (431) by threaded sleeves, and the bottom end of the lifting plate (431) is connected to the baffle (432) by bolts, and the other side position of one end of the conveying frame (2) is connected to the driving motor (433) by bolts.

3. The system for preparing waste concrete according to claim 2, characterized in that: The top of the feed hopper (403) is in contact with the bottom of the discharge channel (404), the outer side of the inner cylinder (406) is rotatably connected to the inner wall of the transfer cylinder (402), both ends of the limiting groove (411) pass through both ends of the inner cylinder (406), and both ends of the extrusion plate (409) are in contact with the inner wall of the storage tank (407).

4. The system for preparing waste concrete according to claim 2, characterized in that: Two adjacent transmission gears (419) mesh with each other, and the transmission gear (419) meshes with the driven gear (422), and the diameter of the driven gear (422) is smaller than the diameter of the transmission gear (419). The two traction plates (424) are symmetrically mounted on both sides of the conveying frame (2).

5. The system for preparing waste concrete according to claim 2, characterized in that: One end of the traction steel cable (427) passes through the cross frame (425) and is fixedly connected to the top of the traction block (423), and through holes are provided at both ends of the cross frame (425) at positions corresponding to the outside of the traction steel cable (427).

6. The system for preparing waste concrete according to claim 2, characterized in that: One end of the scraper (429) is symmetrically provided with an inclined surface. The length of the baffle (432) is less than the distance between the inner walls of the conveying frame (2). The output shaft of the drive motor (433) is fixedly connected to one end of the rotating shaft (416). The drive motor (433) is powered by an external power supply.

7. The system for preparing waste concrete according to claim 1, characterized in that: The crushing and regulating mechanism (5) includes a crushing box (501); The top of the base (1) is connected to the other side of the conveying frame (2) by bolts, and a crushing box (501) is symmetrically clamped at the top of the inner wall of the crushing box (501). A material guide plate (502) is clamped. Rectangular grooves (503) are opened at both ends of the crushing box (501). A partition (504) is clamped at the center position of the two rectangular grooves (503). The top and bottom of both ends of the partition (504) are connected to push rods (505) by threads. The two push rods (505) on the same side are connected to the top of the base (1) by bolts, and the material guide plate (502) is clamped at the top of the inner wall of the crushing box (501). ) are rotatably connected to a slide plate (506) at one end, a rotating rod (507) is rotatably connected between the two slide plates (506) on the same side of the two rectangular slots (503), and a crushing roller (508) is fixedly sleeved on the outer sides of the two rotating rods (507) at positions corresponding to the inner sides of the crushing box (501), a rotating disk (509) is clamped at both ends of the two rotating rods (507), and the other end of the rotating disk (509) is rotatably connected to a connecting rod (510), and a tooth groove (511) is provided on the outer side of the connecting rod (510); The two ends of the crushing box (501) are symmetrically connected to driving gears (512) at the bottom positions of the rectangular slots (503), one end of each of the two driving gears (512) is rotatably connected to a sleeve (513), the outer sides of the two sleeves (513) are equidistantly connected to push rods (514) via threads, and the other ends of the push rods (514) are rotatably connected to a toothed plate (515) at positions inside the sleeves (513), and the inside of the crushing box (501) is connected to a dual-axis motor (516) via bolts at positions corresponding to one side of the driving gears (512), both ends of the output shaft of the dual-axis motor (516) are clamped with transmission rods (517), and the outer sides of the two transmission rods (517) are fixedly sleeved with gear rings (518); A bracket (519) is clamped at a position corresponding to the bottom of the crushing box (501) at the top of the base (1), a movable rod (520) is equidistantly and movably connected to the top of the bracket (519), a screening rack (521) is clamped at the top of the movable rod (520), and a tensioning spring (526) is clamped at a position corresponding to the outer side of the movable rod (520) between the screening rack (521) and the bracket (519), a swing arm (522) is clamped at the opposite ends of the two transmission rods (517), and the other ends of the two swing arms (522) are rotatably connected to a rotating plate (523), a collection box (524) is slidably connected to the top of the base (1) at a position corresponding to the bottom of the screening rack (521), and a recycling box (525) is slidably connected to the top of the base (1) at a position corresponding to one side of the collection box (524).

8. The system for preparing waste concrete according to claim 7, characterized in that: The width of the inner wall of the crushing box (501) is greater than the width of the inner wall of the conveying frame (2); the outer side of the slide plate (506) is slidably connected to the inner wall of the rectangular groove (503); and both ends of the rotating rod (507) pass through the slide plate (506).

9. The system for preparing waste concrete according to claim 7, characterized in that: Two adjacent driving gears (512) are meshed with each other, one end of the connecting rod (510) is embedded in the sleeve (513), the outer side of the connecting rod (510) is slidably connected to the inner wall of the sleeve (513), and the tooth plate (515) is meshed with the tooth groove (511), the driving gear (512) is meshed with the gear ring (518), and the dual-axis motor (516) is powered by an external power supply.

10. The system for preparing waste concrete according to claim 7, characterized in that: The screening rack (521) is tilted, and the other end of the rotating plate (523) is rotatably connected to one end of the screening rack (521), and one end of the screening rack (521) extends to the top of the recovery box (525).

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