Waste concrete crushing device

Abstract

The invention provides a waste concrete crushing device, and relates to the technical field of road and bridge construction, the waste concrete crushing device comprises a feeding mechanism, a crushing mechanism and a supporting table; the feeding mechanism and the smashing mechanism are installed on the ground, and the upper end of the feeding mechanism is located over the smashing mechanism. The supporting table is mounted on the left side of the crushing mechanism, the supporting frame is mounted on the supporting table through bolts, the bottom shell is mounted on the supporting frame through bolts, the rollers are mounted on the bottom shell, and the screen drum is mounted on the bottom shell; concrete slag crushed by the crushing mechanism enters a screen drum through a discharging pipe, a third motor is controlled to drive the screen drum to rotate, the slag firstly passes through screen holes close to the right side of the screen drum to be screened, and the slag with the small diameter is screened into a bottom shell below; and disintegrating slag with large diameter falls into the bottom shell through the screen holes close to the left side of the screen drum, and is discharged onto the conveying belt through the two groups of discharging drums, so that the concrete is classified according to the thickness degree.

Description

Technical Field

[0001] This invention relates to the field of road and bridge construction technology, and in particular to a waste concrete crushing device. Background Technology

[0002] On road and bridge construction sites, it is often necessary to demolish old buildings. Transporting construction waste to waste disposal sites is troublesome and the waste cannot be reused, resulting in waste. Currently, construction workers use construction concrete waste as foundation filler, which not only reuses waste but also reduces waste disposal costs and the workload of sanitation workers. Because discarded cement concrete blocks are often very large and unsuitable for direct foundation filling, they need to be crushed before use. Therefore, a waste concrete crushing device is needed.

[0003] For example, patent application number CN202110514004.1 discloses a waste concrete crushing device for road and bridge construction. Its structure includes a frame with a fixed connecting rod. Several rotating shaft fixing sleeves are fixed on the fixed connecting rod. Below the fixed connecting rod is an upper fixed connecting rod, with several upper fixed sliding sleeves arranged linearly and equally spaced on the upper fixed connecting rod. Below the upper fixed connecting rod is a lower fixed connecting rod, with several lower fixed sliding sleeves arranged linearly and equally spaced on the lower fixed connecting rod. This invention crushes the cement by sequentially striking the road surface with several striking tips, sliding rods, upper sliding rods, and rack rods. The planetary motion of the several crushing rotating shafts and crushing discs further pulverizes the cement on the road surface. The presence of spiral rotating shaft discs with opposite spiral directions on the rotating spiral shaft allows for the removal and collection of cement accumulation to both sides, thus solving the problems mentioned in the background art.

[0004] Currently available concrete crushing equipment cannot classify the crushed concrete according to its coarseness after crushing. Furthermore, the existing concrete crushing equipment is inconvenient to load, requiring manual support of the collection bag, which affects work efficiency. Summary of the Invention

[0005] In view of this, the present invention provides a waste concrete crushing device, wherein a support frame is bolted to a support platform, a bottom shell is bolted to the support frame, rollers are mounted on the bottom shell, and a screen cylinder is mounted on the bottom shell. The screen cylinder is inclinedly mounted on the bottom shell and has two sets of screen holes with different apertures. The lower end of the screen cylinder contacts the rollers. A shaft connecting platform is mounted on the support frame, a No. 3 motor is mounted on the shaft connecting platform, a gear is mounted on the shaft of the No. 3 motor, a connecting rod is installed inside the screen cylinder, a bearing seat is mounted on the shaft connecting platform, and a gear is mounted on the connecting rod. The gear on the connecting rod meshes with the gear on the shaft of motor No. 3. During use, the concrete slag crushed by the crushing mechanism enters the screen cylinder through the discharge pipe. By controlling motor No. 3, the screen cylinder is driven to rotate. The screen cylinder has two sets of screen holes with different diameters. The slag first passes through the screen hole near the right side of the screen cylinder for screening. The smaller diameter slag passes through the screen hole near the left side of the screen cylinder and falls into the bottom shell. The larger diameter slag falls into the bottom shell through the screen hole near the left side of the screen cylinder and is discharged onto the conveyor belt through the two sets of discharge cylinders, thus classifying the concrete according to its coarseness.

[0006] This invention provides a waste concrete crushing device with the following purpose and function: a feeding mechanism, a crushing mechanism, and a support platform; the feeding mechanism and the crushing mechanism are installed on the ground, with the upper end of the feeding mechanism located directly above the crushing mechanism; the support platform is installed on the left side of the crushing mechanism, a support frame is bolted to the support platform, a bottom shell is bolted to the support frame, rollers are installed on the bottom shell, a screen cylinder is installed on the bottom shell, the screen cylinder is installed at an incline on the bottom shell, and the screen cylinder has two sets of screen holes with different apertures, the lower end of the screen cylinder contacts the rollers, a shaft connecting platform is installed on the support frame, a No. 3 motor is installed on the shaft connecting platform, a gear is installed on the shaft of the No. 3 motor, a connecting rod is installed inside the screen cylinder, a bearing seat is installed on the shaft connecting platform, a gear is installed on the connecting rod, and the gear on the connecting rod meshes with the gear on the shaft of the No. 3 motor.

[0007] Furthermore, the feeding mechanism includes a base frame, a feeding cylinder, and a sleeve. The lower end of the feeding cylinder is hinged to the base frame. A feeding wheel is shafted inside the feeding cylinder. A gearbox is bolted to the lower end of the feeding cylinder. The output shaft of the gearbox is connected to the lower end of the feeding wheel inside the feeding cylinder. A No. 1 motor is mounted on the gearbox. The shaft of the No. 1 motor is connected to the input shaft of the gearbox. A filling hopper is bolted to the feeding cylinder. A partition rod is welded to the filling hopper. A discharge port is provided at the upper end of the feeding cylinder. The lower end of the sleeve is hinged to the base frame.

[0008] Furthermore, the feed cylinder is equipped with a maintenance platform, on which a cover plate is installed. Two sets of locking plates are shaft-connected to the cover plate and are snapped onto the maintenance platform. Two sets of sliding rods are hinged to the feed cylinder. A sliding sleeve is installed inside the sleeve and slides within the sleeve. The lower end of the sliding rod slides within the sliding sleeve. A gear is hinged to the feed cylinder. A mating block is installed between the two sets of sleeves. A gear is shaft-connected inside the mating block and meshes with the gear. A worm gear is fixed on the shaft of the gear. A worm is installed inside the mating block and meshes with the worm gear. A handwheel is installed at the upper end of the worm.

[0009] Furthermore, the crushing mechanism includes a mounting frame, fixing plates, a cover, a support plate, a feed hopper, and a discharge hopper. Four sets of fixing plates are fixed to the lower end of the mounting frame, and the fixing plates are equipped with casters and feet. The cover is mounted on the upper end of the mounting frame, the support plate is mounted on the cover by bolts, the discharge hopper is mounted on the upper end of the cover by bolts, the feed hopper is mounted on the upper end of the cover by bolts, and the discharge hopper is mounted below the cover.

[0010] Furthermore, a base is installed at the lower end of the cover, and two sets of curved frames are axially connected on the base. The lower ends of the two sets of curved frames are rotatably connected. A perforated plate is installed on the curved frame, and a top plate is installed on the upper end of the curved frame by bolts. A hammer plate is installed on the top plate by bolts. A crushing wheel is axially connected inside the cover, and a second motor is installed on the support plate by bolts. The rotating shaft of the second motor is connected to the rotating shaft of the crushing wheel.

[0011] Furthermore, the discharge hopper is bolted to the lower end of the base, and a discharge pipe is fixed on the discharge hopper. The discharge pipe is installed at an angle. The feed hopper is provided with two sets of sliding grooves, and baffles are installed in the sliding grooves. Two sets of threaded rods are fixed on the baffles. The threaded rods are located in the sliding grooves on the feed hopper, and nuts are threaded onto the threaded rods.

[0012] Furthermore, the aperture of the screen hole on the right side of the screen cylinder is smaller than that on the left side of the screen cylinder. Two sets of discharge cylinders are provided on the bottom shell, and the two sets of discharge cylinders are located below the two sets of screen holes on the screen cylinder. Two sets of conveying components are installed on the support platform, and the two sets of conveying components are located below the two sets of discharge cylinders.

[0013] Furthermore, the conveying component includes a housing, a conveyor belt, and a No. 4 motor. The housing is bolted to a support platform, the conveyor belt is mounted on the housing, and a tensioning structure is provided at the front end of the conveyor belt. A gearbox is mounted on the housing, and the output shaft of the gearbox is connected to the roller at the rear end of the conveyor belt. The No. 4 motor is bolted to the upper end of the gearbox, and the rotating shaft of the No. 4 motor is connected to the input shaft of the gearbox. A base is fixed on the housing, and a rail plate is fixed to the lower end of the base. A gate plate slides on the rail plate, and a No. 1 hydraulic rod is mounted on the upper end of the base. The telescopic end of the No. 1 hydraulic rod is connected to the upper end of the gate plate.

[0014] Furthermore, a sealing plate is spun onto the housing, and a partition is bolted to the upper end of the housing. The partition has a through groove located below the discharge cylinder. A hopper is installed at the lower end of the housing. Two sets of clamping arms are spun onto the left and right sides of the hopper, respectively. Two sets of connecting plates are spun onto the clamping arms. A clamping ring is fixed between the two sets of connecting plates, and a second hydraulic rod is installed between the two sets of clamping arms.

[0015] Beneficial effects

[0016] In this invention, a support frame is bolted to a support platform, and a base shell is bolted to the support frame. Rollers are mounted on the base shell, and a sieve cylinder is mounted on the base shell at an angle. The sieve cylinder has two sets of sieve holes with different diameters. The lower end of the sieve cylinder contacts the rollers. A shaft mounting platform is mounted on the support frame, and a No. 3 motor is mounted on the shaft mounting platform. A gear is mounted on the shaft of the No. 3 motor. A connecting rod is installed inside the sieve cylinder. A bearing seat is mounted on the shaft mounting platform, and a gear is mounted on the connecting rod. The gear on the connecting rod interacts with the No. 3 motor. The gears on the rotating shaft mesh, and during use, the concrete slag crushed by the crushing mechanism enters the screen cylinder through the discharge pipe. The No. 3 motor drives the screen cylinder to rotate. The screen cylinder has two sets of screen holes with different diameters. The slag first passes through the screen hole near the right side of the screen cylinder for screening, and the smaller diameter slag passes through the screen hole near the left side of the screen cylinder and falls into the bottom shell. The larger diameter slag falls into the bottom shell through the screen hole near the left side of the screen cylinder and is discharged onto the conveyor belt through the two sets of discharge cylinders, thus classifying the concrete according to its coarseness.

[0017] In addition, two sets of conveyor components are installed on the support platform. Each conveyor component includes a housing, a conveyor belt, and a No. 4 motor. The housing is bolted to the support platform, and the conveyor belt is mounted on the housing. A tensioning structure is located at the front end of the conveyor belt. A gearbox is mounted on the housing, and the output shaft of the gearbox is connected to the rollers at the rear end of the conveyor belt. The No. 4 motor is bolted to the upper end of the gearbox, and its shaft is connected to the input shaft of the gearbox. A base is fixed to the housing, and a rail plate is fixed to the lower end of the base. A gate plate slides on the rail plate. A hydraulic rod is mounted on the upper end of the base, and its telescopic end is connected to the upper end of the gate plate. A sealing plate is shaft-connected to the housing. A partition plate is bolted to the upper end of the casing, and a through groove is provided on the partition plate. The through groove is located below the discharge cylinder. A hopper is installed at the lower end of the casing. Two sets of clamping arms are shafted to the left and right sides of the hopper, respectively. Two sets of connecting plates are shafted to the clamping arms, and a clamping ring is fixed between the two sets of connecting plates. A second hydraulic rod is installed between the two sets of clamping arms. In use, concrete debris is conveyed by a conveyor belt. The discharge amount is controlled by raising and lowering the gate by controlling the first hydraulic rod. The discharge amount is controlled by controlling the second hydraulic rod to retract and bring the two sets of clamping arms closer together, which can clamp the upper end of the collection bag. No manual support is required for the collection bag during loading, which is convenient to operate and improves work efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the overall structure of the waste concrete crushing device according to an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the feeding mechanism of the waste concrete crushing device according to an embodiment of the present invention.

[0023] Figure 3 This is an embodiment of the waste concrete crushing device of the present invention. Figure 2 An enlarged structural diagram of point A.

[0024] Figure 4 This is an embodiment of the waste concrete crushing device of the present invention. Figure 2 A magnified structural diagram at point B.

[0025] Figure 5 This is a schematic diagram of the crushing mechanism of the waste concrete crushing device according to an embodiment of the present invention.

[0026] Figure 6 This is an embodiment of the waste concrete crushing device of the present invention. Figure 5 A magnified structural diagram at point C.

[0027] Figure 7 This is a schematic diagram of the feed hopper of the waste concrete crushing device according to an embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of the support platform of the waste concrete crushing device according to an embodiment of the present invention.

[0029] Figure 9 This is an embodiment of the waste concrete crushing device of the present invention. Figure 8 A magnified structural diagram at point D.

[0030] Figure 10 This is a schematic diagram of the conveying component of the waste concrete crushing device according to an embodiment of the present invention.

[0031] Figure 11 This is an embodiment of the waste concrete crushing device of the present invention. Figure 8 An enlarged structural diagram at point E.

[0032] Figure 12This is an embodiment of the waste concrete crushing device of the present invention. Figure 10 A magnified structural diagram at point F.

[0033] List of reference numerals

[0034] 1. Feeding mechanism; 11. Base frame; 12. Conveying cylinder; 121. Filling hopper; 122. Divider rod; 123. Gearbox; 124. Motor No. 1; 125. Slide rod; 126. Tooth rack; 127. Inspection platform; 1271. Cover plate; 1272. Locking plate; 13. Sleeve; 131. Sliding sleeve; 132. Mating block; 133. Handwheel; 2. Crushing mechanism; 21. Mounting frame; 22. Fixing plate; 221. Moving wheel; 222. Foot; 23. Cover; 231. Base; 232. Curved frame; 2321. Perforated plate; 233. Top plate; 2331. Hammer plate; 234. Crushing wheel; 24. Support plate; 241. Motor No. 2 25. Feed hopper; 251. Baffle; 26. Discharge hopper; 261. Discharge pipe; 3. Support platform; 31. Support frame; 311. Shaft connection platform; 312. No. 3 motor; 32. Bottom shell; 321. Discharge cylinder; 322. Roller; 33. Screen cylinder; 331. Connecting rod; 34. Conveying component; 341. Shell; 3411. Base; 3412. Rail plate; 3413. Gate plate; 3414. No. 1 hydraulic rod; 342. Conveyor belt; 343. No. 4 motor; 344. Partition plate; 345. Sealing plate; 346. Loading hopper; 3461. Clamping arm; 3462. Connecting plate; 3463. Clamping ring; 3464. No. 2 hydraulic rod. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention.

[0036] Example: Please refer to Figures 1 to 12 As shown:

[0037] This invention provides a waste concrete crushing device, including a feeding mechanism 1, a crushing mechanism 2, and a support platform 3. The feeding mechanism 1 and the crushing mechanism 2 are installed on the ground, with the upper end of the feeding mechanism 1 directly above the crushing mechanism 2. The support platform 3 is installed to the left of the crushing mechanism 2. A support frame 31 is bolted to the support platform 3, and a bottom shell 32 is bolted to the support frame 31. Rollers 322 are installed on the bottom shell 32, and a screen cylinder 33 is installed on the bottom shell 32 at an angle. The bottom shell 32 and the screen cylinder 33 are provided with two sets of screen holes with different apertures. The lower end of the screen cylinder 33 is in contact with the roller 322. The support frame 31 is equipped with a shaft connecting platform 311. The shaft connecting platform 311 is equipped with a No. 3 motor 312. The shaft of the No. 3 motor 312 is equipped with a gear. The screen cylinder 33 is equipped with a connecting rod 331. The shaft connecting platform 311 is equipped with a bearing seat. The connecting rod 331 is equipped with a gear. The gear on the connecting rod 331 meshes with the gear on the shaft of the No. 3 motor 312.

[0038] The feeding mechanism 1 includes a base frame 11, a feeding cylinder 12, and a sleeve 13. The lower end of the feeding cylinder 12 is hinged to the base frame 11. A feeding wheel is shaft-connected inside the feeding cylinder 12. A gearbox 123 is bolted to the lower end of the feeding cylinder 12. The output shaft of the gearbox 123 is connected to the lower end of the feeding wheel inside the feeding cylinder 12. A first motor 124 is mounted on the gearbox 123. The shaft of the first motor 124 is connected to the gearbox 123. The input shaft is connected, and a filling hopper 121 is bolted to the feeding cylinder 12. A partition rod 122 is welded to the filling hopper 121. The upper end of the feeding cylinder 12 has a discharge port. The lower end of the sleeve 13 is hinged to the base frame 11. A maintenance platform 127 is provided on the feeding cylinder 12. A cover plate 1271 is installed on the maintenance platform 127. Two sets of locking plates 1272 are shaft-connected to the cover plate 1271. The locking plates 1272 are snapped onto the maintenance platform 1271. On 27, two sets of sliding rods 125 are hinged to the conveying cylinder 12. A sliding sleeve 131 is installed inside the sleeve 13. The sliding sleeve 131 slides inside the sleeve 13. The lower end of the sliding rod 125 slides inside the sliding sleeve 131. A toothed rod 126 is hinged to the conveying cylinder 12. A mating block 132 is installed between the two sets of sleeves 13. A gear is shafted inside the mating block 132. The gear meshes with the toothed rod 126. A worm gear is fixed on the shaft of the gear. A worm is installed inside the mating block 132. The worm meshes with the worm gear. A handwheel 133 is installed at the upper end of the worm. Its function is: when in use, concrete is poured into the filling hopper 121. The concrete blocks are blocked by the partition rod 122. The first motor 124 is controlled to rotate the conveying wheel inside the conveying cylinder 12, so that the conveying wheel conveys the concrete. Rotating the handwheel 133 can adjust the tilt angle of the conveying cylinder 12.

[0039] The crushing mechanism 2 includes a mounting frame 21, fixing plates 22, a cover 23, a support plate 24, a feed hopper 25, and a discharge hopper 26. Four sets of fixing plates 22 are fixed to the lower end of the mounting frame 21. Casters 221 and feet 222 are mounted on the fixing plates 22. The cover 23 is mounted on the upper end of the mounting frame 21. The support plate 24 is bolted to the cover 23. The discharge hopper 26 is bolted to the upper end of the cover 23. The feed hopper 25 is bolted to the upper end of the cover 23. The discharge hopper 26 is installed below the cover 23, and a base 231 is installed at the lower end of the cover 23. Two sets of curved frames 232 are shaft-connected to the base 231, and the lower ends of the two sets of curved frames 232 are rotatably connected. Perforated plates 2321 are installed on the curved frames 232, and a top plate 233 is bolted to the upper end of the curved frames 232. A hammer plate 2331 is bolted to the top plate 233. A crushing wheel 234 is shaft-connected inside the cover 23. A second motor 241 is bolted to plate 24. The shaft of the second motor 241 is connected to the shaft of the crushing wheel 234. The discharge hopper 26 is bolted to the lower end of the base 231. A discharge pipe 261 is fixed to the discharge hopper 26 and is installed at an angle. The feed hopper 25 is provided with two sets of sliding grooves. A baffle 251 is installed in the sliding grooves. Two sets of threaded rods are fixed on the baffle 251. The threaded rods are located in the sliding grooves on the feed hopper 25 and nuts are screwed onto the threads of the threaded rods. The function is as follows: the concrete is transported to the feed hopper 25 through the conveying cylinder 12. The concrete in the feed hopper 25 falls into the cover 23. By starting the second motor 241, it drives the crushing wheel 234 to rotate. The crushing wheel 234 rotates and hits the concrete to achieve the crushing of the concrete. Loosening the nuts on the baffle 251 can adjust the position of the baffle 251 and adjust the size of the feed inlet of the feed hopper 25.

[0040] The screen hole diameter on the right side of the screen cylinder 33 is smaller than that on the left side. Two sets of discharge cylinders 321 are provided on the bottom shell 32, which are located below the two sets of screen holes on the screen cylinder 33. Two sets of conveyor components 34 are installed on the support platform 3, which are located below the two sets of discharge cylinders 321. Their function is as follows: the crushed concrete debris enters the screen cylinder 33 through the discharge pipe 261. By controlling the No. 3 motor 312, the screen cylinder 33 is rotated. The debris first passes through the screen hole near the right side of the screen cylinder 33 for screening. The smaller diameter debris passes through the screen hole near the left side of the screen cylinder 33 and falls into the bottom shell 32. The larger diameter debris falls into the bottom shell 32 and is discharged onto the conveyor belt 342 through the two sets of discharge cylinders 321, thereby classifying the concrete according to its coarseness.

[0041] The conveying component 34 includes a housing 341, a conveyor belt 342, and a fourth motor 343. The housing 341 is bolted to the support platform 3. The conveyor belt 342 is mounted on the housing 341, and a tensioning structure is provided at the front end of the conveyor belt 342. A gearbox 123 is mounted on the housing 341, and the output shaft of the gearbox 123 is connected to the roller at the rear end of the conveyor belt 342. The fourth motor 343 is bolted to the upper end of the gearbox 123, and the rotating shaft of the fourth motor 343 is connected to the input shaft of the gearbox 123. A base 3411 is fixed on the housing 341, and a rail plate 3412 is fixed to the lower end of the base 3411. A gate plate 3413 slides on the rail plate 3412. A hydraulic rod 3414 is mounted on the upper end of the base 3411, and the telescopic end of the hydraulic rod 3414 is connected to the upper end of the gate plate 3413. A sealing plate 3 is shaft-connected to the housing 341. 45. A partition plate 344 is bolted to the upper end of the housing 341. The partition plate 344 has a through groove located below the discharge cylinder 321. A hopper 346 is installed at the lower end of the housing 341. Two sets of clamping arms 3461 are shafted to the left and right sides of the hopper 346. Two sets of connecting plates 3462 are shafted to the clamping arms 3461. A clamping ring 3463 is fixed between the two sets of connecting plates 3462. A second hydraulic rod 3464 is installed between the two sets of clamping arms 3461. Its function is to control the rotation of the fourth motor 343 to run the conveyor belt 342, control the raising and lowering of the gate plate 3413 by controlling the first hydraulic rod 3414 to control the amount of material discharged, and control the retraction of the second hydraulic rod 3464 to bring the two sets of clamping arms 3461 closer together to clamp the upper end of the collection bag. No manual support is required for the collection bag during loading, making operation convenient and improving work efficiency.

[0042] The specific usage and function of this embodiment: In this invention, the operator pours concrete into the filling hopper 121, where it is blocked by a large concrete block via a partition rod 122. The first motor 124 is controlled to rotate the conveying wheel inside the conveying cylinder 12, allowing the conveying wheel to transport the concrete. The handwheel 133 can be turned to adjust the tilt angle of the conveying cylinder 12. The concrete is conveyed through the conveying cylinder 12 to the feeding hopper 25, where it falls into the casing 23. The second motor 241 is then started to drive the crushing wheel 234 to rotate, which in turn strikes the concrete, thus breaking it up. Loosening the nut on the baffle 251 allows for adjustment of the position of the baffle 251, thus adjusting the size of the feed inlet of the feeding hopper 25. The crushed concrete fragments are then discharged through the outlet... The material pipe 261 enters the screen cylinder 33. By controlling the No. 3 motor 312, the screen cylinder 33 is rotated. The crushed material first passes through the screen holes near the right side of the screen cylinder 33 for screening. The smaller diameter crushed material passes through the screen holes near the left side of the screen cylinder 33 and falls into the bottom shell 32. The larger diameter crushed material falls into the bottom shell 32 through the screen holes near the left side of the screen cylinder 33 and is discharged onto the conveyor belt 342 through two sets of discharge cylinders 321. This achieves the classification of concrete according to its coarseness. The No. 4 motor 343 is controlled to rotate so that the conveyor belt 342 runs. The No. 1 hydraulic rod 3414 is controlled to raise and lower the gate 3413 to control the material discharge. The No. 2 hydraulic rod 3464 is controlled to retract so that the two sets of clamping arms 3461 come closer together to clamp the upper end of the collection bag. No manual support is required for the collection bag during loading, making operation convenient and improving work efficiency.

Claims

1. A waste concrete crushing apparatus, characterized by, include: The feeding mechanism (1), crushing mechanism (2), and support platform (3) are provided. The feeding mechanism (1) and crushing mechanism (2) are installed on the ground, with the upper end of the feeding mechanism (1) located directly above the crushing mechanism (2). The support platform (3) is installed on the left side of the crushing mechanism (2). A support frame (31) is bolted to the support platform (3). A bottom shell (32) is bolted to the support frame (31). Rollers (322) are installed on the bottom shell (32). A screen cylinder (33) is installed on the bottom shell (32). The screen cylinder (33) is installed at an angle on the bottom shell (32). 2) On the screen cylinder (33), there are two sets of screen holes with different apertures. The lower end of the screen cylinder (33) is in contact with the roller (322). A shaft connecting platform (311) is installed on the support frame (31). A No. 3 motor (312) is installed on the shaft connecting platform (311). A gear is installed on the shaft of the No. 3 motor (312). A connecting rod (331) is installed inside the screen cylinder (33). A bearing seat is installed on the shaft connecting platform (311). A gear is installed on the connecting rod (331). The gear on the connecting rod (331) meshes with the gear on the shaft of the No. 3 motor (312).

2. A waste concrete crushing apparatus as claimed in claim 1, wherein: The feeding mechanism (1) includes a base frame (11), a feeding cylinder (12) and a sleeve (13). The lower end of the feeding cylinder (12) is hinged to the base frame (11). A feeding wheel is shafted inside the feeding cylinder (12). A gearbox (123) is bolted to the lower end of the feeding cylinder (12). The output shaft of the gearbox (123) is connected to the lower end of the feeding wheel inside the feeding cylinder (12). A first motor (124) is mounted on the gearbox (123). The rotating shaft of the first motor (124) is connected to the input shaft of the gearbox (123). A filling hopper (121) is bolted to the feeding cylinder (12). A partition rod (122) is welded to the filling hopper (121). The upper end of the feeding cylinder (12) is provided with a discharge port. The lower end of the sleeve (13) is hinged to the base frame (11).

3. A waste concrete crushing apparatus as claimed in claim 2, wherein: The feed cylinder (12) is provided with a maintenance platform (127), and a cover plate (1271) is installed on the maintenance platform (127). Two sets of locking plates (1272) are axially connected to the cover plate (1271), and the locking plates (1272) are snapped onto the maintenance platform (127). Two sets of sliding rods (125) are hinged to the feed cylinder (12). A sliding sleeve (131) is installed inside the sleeve (13), and the sliding sleeve (131) slides inside the sleeve (13). The lower end of the slide bar (125) slides in the sliding sleeve (131), and a toothed rod (126) is hinged on the feed cylinder (12). A mating block (132) is installed between the two sets of sleeves (13). A gear is shafted in the mating block (132), and the gear meshes with the toothed rod (126). A worm gear is fixed on the shaft of the gear. A worm is installed in the mating block (132), and the worm meshes with the worm gear. A handwheel (133) is installed at the upper end of the worm.

4. The apparatus of claim 1, wherein: The crushing mechanism (2) includes a mounting frame (21), a fixing plate (22), a cover (23), a support plate (24), a feed hopper (25), and a discharge hopper (26). The lower end of the mounting frame (21) is fixed with four sets of fixing plates (22). The fixing plates (22) are equipped with casters (221) and feet (222). The cover (23) is installed on the upper end of the mounting frame (21). The support plate (24) is installed on the cover (23) by bolts. The discharge hopper (26) is installed on the upper end of the cover (23) by bolts. The feed hopper (25) is installed on the upper end of the cover (23) by bolts. The discharge hopper (26) is installed below the cover (23).

5. A waste concrete crushing apparatus as claimed in claim 4, wherein: The lower end of the cover (23) is equipped with a base (231), and two sets of curved frames (232) are axially connected on the base (231). The lower ends of the two sets of curved frames (232) are rotatably connected. A perforated plate (2321) is installed on the curved frame (232). A top plate (233) is installed on the upper end of the curved frame (232) by bolts. A hammer plate (2331) is installed on the top plate (233) by bolts. A crushing wheel (234) is axially connected inside the cover (23). A second motor (241) is installed on the support plate (24) by bolts. The rotating shaft of the second motor (241) is connected to the rotating shaft of the crushing wheel (234).

6. A waste concrete crushing apparatus as claimed in claim 4, wherein: The discharge hopper (26) is bolted to the lower end of the base (231). A discharge pipe (261) is fixed on the discharge hopper (26). The discharge pipe (261) is installed at an angle. The feed hopper (25) is provided with two sets of sliding grooves. A baffle (251) is installed in the sliding groove. Two sets of threaded rods are fixed on the baffle (251). The threaded rods are located in the sliding grooves on the feed hopper (25). Nuts are threaded onto the threaded rods.

7. A waste concrete crushing apparatus as claimed in claim 1, wherein: The aperture of the screen hole on the right side of the screen cylinder (33) is smaller than that of the screen hole on the left side of the screen cylinder (33). Two sets of discharge cylinders (321) are provided on the bottom shell (32). The two sets of discharge cylinders (321) are located below the two sets of screen holes on the screen cylinder (33). Two sets of conveying components (34) are installed on the support platform (3). The two sets of conveying components (34) are located below the two sets of discharge cylinders (321).

8. The waste concrete crushing device according to claim 7, characterized in that: The conveying component (34) includes a housing (341), a conveyor belt (342), and a No. 4 motor (343). The housing (341) is bolted to the support platform (3). The conveyor belt (342) is mounted on the housing (341). The front end of the conveyor belt (342) is provided with a tensioning structure. A gearbox (123) is mounted on the housing (341). The output shaft of the gearbox (123) is connected to the roller at the rear end of the conveyor belt (342). The No. 4 motor (343) is bolted to the support platform (341). Mounted on the upper end of the gearbox (123), the shaft of the fourth motor (343) is connected to the input shaft of the gearbox (123). A base (3411) is fixed on the housing (341), a rail plate (3412) is fixed on the lower end of the base (3411), a gate plate (3413) slides on the rail plate (3412), and a hydraulic rod (3414) is installed on the upper end of the base (3411). The telescopic end of the hydraulic rod (3414) is connected to the upper end of the gate plate (3413).

9. A waste concrete crushing apparatus as claimed in claim 8, wherein: A sealing plate (345) is axially connected to the housing (341). A partition plate (344) is bolted to the upper end of the housing (341). A through groove is provided on the partition plate (344), which is located below the discharge cylinder (321). A loading hopper (346) is installed at the lower end of the housing (341). Two sets of clamping arms (3461) are axially connected to the left and right sides of the loading hopper (346). Two sets of connecting plates (3462) are axially connected to the clamping arms (3461). A clamping ring (3463) is fixed between the two sets of connecting plates (3462). A second hydraulic rod (3464) is installed between the two sets of clamping arms (3461).

Images