Concrete crushing device

Abstract

The utility model relates to the technical field of crushing devices, and discloses a concrete crushing device, which solves the problems that the existing crushing device cannot classify and discharge concrete with different finished product granularities, the subsequent screening step is added, and the working efficiency is reduced. A mounting cylinder is fixedly mounted on one side of the crushing box, two crushing rollers are rotatably mounted in the feeding hopper, a connecting pipe is fixedly mounted on one side of the crushing box and located in the mounting cylinder, a first shaft sleeve is rotatably mounted on one side of the connecting pipe, a mounting pipe is rotatably mounted in the first shaft sleeve, and a first chain wheel is fixedly mounted on the surface of the mounting pipe; a screening drum is fixedly mounted on one side of the mounting pipe, and a discharging valve is fixedly mounted at one end of the screening drum; according to the crushing device, concrete with different finished product granularities can be conveniently and rapidly discharged in a classified mode, the subsequent screening step is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushing devices, in particular to a concrete crushing device. Background Art

[0002] Waste concrete refers to discarded concrete blocks. For example, after the dismantling of a building, high-quality crushed and screened concrete blocks and silt can be used as concrete recycling; concrete recycling requires the use of a crushing device for crushing; an existing patent (Announcement No.: CN219441792U) discloses a concrete crushing device, which has a simple structure, is easy to operate, has a low investment cost, and is convenient for people to use economically; however, the crushing device cannot classify and discharge concrete of different finished particle sizes, which increases the subsequent screening steps and reduces work efficiency. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a concrete crushing device, which effectively solves the problem that the existing crushing device cannot classify and discharge concrete of different finished particle sizes, increases the subsequent screening step, and reduces the work efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete crushing device, comprising a crushing box, a feed hopper is fixedly installed on the top of the crushing box, a mounting cylinder is fixedly installed on one side of the crushing box, two crushing rollers are rotatably installed inside the feed hopper, a connecting pipe is fixedly installed on one side of the crushing box and located inside the mounting cylinder, a first shaft sleeve is rotatably installed on one side of the connecting pipe, a mounting pipe is rotatably installed inside the first shaft sleeve, a first sprocket is fixedly installed on the surface of the mounting pipe, a sub-screening cylinder is fixedly installed on one side of the mounting pipe, a discharge valve is fixedly installed on one end of the sub-screening cylinder, an L-shaped plate is fixedly installed on the rear side of the crushing box, a crushing and sub-screening assembly is provided on the L-shaped plate, and the crushing assembly is drivingly connected to the two crushing rollers and the first sprocket.

[0005] Preferably, the crushing and screening assembly includes a motor, which is fixedly mounted on a side of the L-shaped plate close to the crushing box, a first gear is fixedly mounted on the output end of the motor, a second gear is meshingly connected to one side of the first gear, a transmission rod is fixedly mounted on one side of the first gear and the second gear, the transmission rods extend into the interior of the crushing box and are respectively fixedly connected to the two crushing rollers, a first bevel gear is fixedly mounted on the side of the second gear away from the transmission rod, a rotating shaft is rotatably mounted on one side of the first bevel gear, and one end of the rotating shaft is fixedly connected to the L-shaped plate.

[0006] Preferably, the lower side of the first bevel gear is meshingly connected with the second bevel gear, the bottom of the second bevel gear is fixedly installed with a first rotating rod, the surface of the first rotating rod is rotatably installed with a second sleeve, the surface of the second sleeve is fixedly installed with a first fixed rod, one end of the first fixed rod is fixedly connected to the L-shaped plate, and the bottom of the first rotating rod is fixedly installed with a third bevel gear.

[0007] Preferably, one side of the third bevel gear is meshedly connected with a fourth bevel gear, one side of the fourth bevel gear is fixedly installed with a second rotating rod, a third shaft sleeve is rotatably installed on the surface of the second rotating rod, a second fixed rod is fixedly installed on the surface of the third shaft sleeve, one end of the second fixed rod is fixedly connected to the mounting tube, one end of the second rotating rod is fixedly installed with a second sprocket, and a chain is meshedly connected between the second sprocket and the first sprocket.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] During operation, the operator puts the waste concrete blocks into the feed hopper, and then starts the motor to drive the first gear to rotate, and the first gear drives the second gear to rotate. When the first gear and the second gear rotate, they respectively drive the two crushing rollers to rotate toward each other through the transmission rod, so as to crush the waste concrete blocks. The crushed concrete will fall to the bottom of the crushing box and slide into the sub-screen cylinder through the connecting pipe and the mounting pipe. When the second gear rotates, it will drive the first bevel gear to rotate along the rotating shaft. When the first bevel gear rotates, it drives the first rotating rod to rotate along the inside of the second sleeve through the second bevel gear.

[0010] When the first rotating rod rotates, the fourth bevel gear is driven to rotate through the third bevel gear. When the fourth bevel gear rotates, it drives the second rotating rod to rotate along the inside of the third shaft sleeve. When the second rotating rod rotates, it drives the second sprocket to rotate. The second sprocket drives the first sprocket to rotate through the chain. When the first sprocket rotates, it drives the mounting pipe to rotate along the first shaft sleeve. When the mounting pipe rotates, it drives the screening drum to rotate, so that the crushed concrete can be screened, large particles are discharged through the discharge valve, and small particles slide out of the installation barrel; this allows the crushing device to conveniently classify and discharge concrete of different finished particle sizes, reduces subsequent screening steps, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0012] In the attached picture:

[0013] Figure 1 The structure of the crushing device of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The structure of the crushing device of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 The internal structure of the installation tube of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 4 The internal structure of the installation tube of the utility model is shown in FIG. Figure 2 ;

[0017] In the figure: 1. crushing box; 2. feed hopper; 3. mounting cylinder; 4. crushing roller; 5. screening cylinder; 6. discharge valve; 7. connecting pipe; 8. first bushing; 9. first sprocket; 10. L-shaped plate; 11. motor; 12. first gear; 13. rotating shaft; 14. first bevel gear; 15. second gear; 16. second bevel gear; 17. first rotating rod; 18. second bushing; 19. first fixed rod; 20. third bevel gear; 21. fourth bevel gear; 22. second rotating rod; 23. third bushing; 24. second fixed rod; 25. second sprocket; 26. chain; 27. mounting pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Depend on Figures 1 to 4 The utility model comprises a crushing box 1, a feed hopper 2 is fixedly installed on the top of the crushing box 1, a mounting cylinder 3 is fixedly installed on one side of the crushing box 1, two crushing rollers 4 are rotatably installed inside the feed hopper 2, a connecting pipe 7 is fixedly installed on one side of the crushing box 1 and located inside the mounting cylinder 3, a first shaft sleeve 8 is rotatably installed on one side of the connecting pipe 7, a mounting pipe 27 is rotatably installed inside the first shaft sleeve 8, a first sprocket 9 is fixedly installed on the surface of the mounting pipe 27, a sub-screening cylinder 5 is fixedly installed on one side of the mounting pipe 27, a discharge valve 6 is fixedly installed on one end of the sub-screening cylinder 5, an L-shaped plate 10 is fixedly installed on the rear side of the crushing box 1, a crushing and sub-screening assembly is provided on the L-shaped plate 10, and the crushing assembly is transmission-connected to the two crushing rollers 4 and the first sprocket 9.

[0020] During work, the operator puts the waste concrete blocks into the feed hopper 2, and then starts the crushing and screening assembly to drive the two crushing rollers 4 to rotate towards each other, thereby crushing the waste concrete blocks. The crushed concrete will fall into the bottom of the crushing box 1 and slide into the inside of the screening drum 5 through the connecting pipe 7 and the mounting pipe 27. The operation of the crushing and screening assembly will drive the first sprocket 9 to rotate. When the first sprocket 9 rotates, it drives the mounting pipe 27 to rotate along the first shaft sleeve 8. When the mounting pipe 27 rotates, it drives the screening drum 5 to rotate, so that the crushed concrete can be screened, and large particles are discharged through the discharge valve 6, and small particles slide out of the mounting drum 3; this allows the crushing device to conveniently classify and discharge concrete of different finished particle sizes, reduces subsequent screening steps, and improves work efficiency.

[0021] The crushing and screening assembly includes a motor 11, which is fixedly mounted on a side of an L-shaped plate 10 close to the crushing box 1. A first gear 12 is fixedly mounted on the output end of the motor 11, and a second gear 15 is meshedly connected to one side of the first gear 12. A transmission rod is fixedly mounted on one side of the first gear 12 and the second gear 15. The transmission rods extend into the interior of the crushing box 1 and are respectively fixedly connected to the two crushing rollers 4. A first bevel gear 14 is fixedly mounted on one side of the second gear 15 away from the transmission rod. A rotating shaft 13 is rotatably mounted on one side of the first bevel gear 14, and one end of the rotating shaft 13 is fixedly connected to the L-shaped plate 10; a second bevel gear 16 is meshedly connected to the lower side of the first bevel gear 14, and a first rotating rod 17 is fixedly mounted on the bottom of the second bevel gear 16. A second shaft sleeve 18 is rotatably mounted on the surface of the first rotating rod 17, a first fixed rod 19 is fixedly mounted on the surface of the second shaft sleeve 18, one end of the first fixed rod 19 is fixedly connected to the L-shaped plate 10, and a third bevel gear 20 is fixedly mounted on the bottom of the first rotating rod 17; a fourth bevel gear 21 is meshedly connected to one side of the third bevel gear 20, a second rotating rod 22 is fixedly mounted on one side of the fourth bevel gear 21, a third shaft sleeve 23 is rotatably mounted on the surface of the second rotating rod 22, a second fixed rod 24 is fixedly mounted on the surface of the third shaft sleeve 23, one end of the second fixed rod 24 is fixedly connected to the mounting tube 3, a second sprocket 25 is fixedly mounted on one end of the second rotating rod 22, and a chain 26 is meshedly connected between the second sprocket 25 and the first sprocket 9.

[0022] The operator starts the motor 11 to drive the first gear 12 to rotate, and the first gear 12 drives the second gear 15 to rotate. When the first gear 12 and the second gear 15 rotate, they respectively drive the two crushing rollers 4 to rotate in opposite directions through the transmission rod, thereby crushing the waste concrete blocks; when the second gear 15 rotates, it will drive the first bevel gear 14 to rotate along the rotating shaft 13. When the first bevel gear 14 rotates, it drives the first rotating rod 17 to rotate along the inside of the second shaft sleeve 18 through the second bevel gear 16. When the first rotating rod 17 rotates, it drives the fourth bevel gear 21 to rotate through the third bevel gear 20. When the fourth bevel gear 21 rotates, it drives the second rotating rod 22 to rotate along the inside of the third shaft sleeve 23. When the second rotating rod 22 rotates, it drives the second sprocket 25 to rotate, and the second sprocket 25 drives the first sprocket 9 to rotate through the chain 26.

Claims

1. A concrete crushing device, comprising a crushing box (1), characterized in that: A feed hopper (2) is fixedly mounted on the top of the crushing box (1); a mounting cylinder (3) is fixedly mounted on one side of the crushing box (1); two crushing rollers (4) are rotatably mounted inside the feed hopper (2); a connecting pipe (7) is fixedly mounted on one side of the crushing box (1) and located inside the mounting cylinder (3); a first shaft sleeve (8) is rotatably mounted on one side of the connecting pipe (7); a mounting pipe (27) is rotatably mounted inside the first shaft sleeve (8); a first sprocket (9) is fixedly mounted on the surface of the mounting pipe (27); a screening cylinder (5) is fixedly mounted on one side of the mounting pipe (27); a discharge valve (6) is fixedly mounted on one end of the screening cylinder (5); an L-shaped plate (10) is fixedly mounted on the rear side of the crushing box (1); a crushing and screening assembly is provided on the L-shaped plate (10); and the crushing assembly is drivingly connected to the two crushing rollers (4) and the first sprocket (9).

2. A concrete crushing device according to claim 1, characterized in that: The crushing and screening assembly comprises a motor (11), the motor (11) being fixedly mounted on a side of an L-shaped plate (10) close to a crushing box (1), a first gear (12) being fixedly mounted on an output end of the motor (11), a second gear (15) being meshingly connected to one side of the first gear (12), a transmission rod being fixedly mounted on one side of the first gear (12) and the second gear (15), the transmission rods both extending into the interior of the crushing box (1) and being fixedly connected to two crushing rollers (4) respectively, a first bevel gear (14) being fixedly mounted on one side of the second gear (15) away from the transmission rod, a rotating shaft (13) being rotatably mounted on one side of the first bevel gear (14), one end of the rotating shaft (13) being fixedly connected to the L-shaped plate (10).

3. A concrete crushing device according to claim 2, characterized in that: The lower side of the first bevel gear (14) is meshedly connected with the second bevel gear (16), the bottom of the second bevel gear (16) is fixedly mounted with a first rotating rod (17), the surface of the first rotating rod (17) is rotatably mounted with a second shaft sleeve (18), the surface of the second shaft sleeve (18) is fixedly mounted with a first fixed rod (19), one end of the first fixed rod (19) is fixedly connected to the L-shaped plate (10), and the bottom of the first rotating rod (17) is fixedly mounted with a third bevel gear (20).

4. A concrete crushing device according to claim 3, characterized in that: One side of the third bevel gear (20) is meshedly connected with a fourth bevel gear (21); one side of the fourth bevel gear (21) is fixedly mounted with a second rotating rod (22); a third shaft sleeve (23) is rotatably mounted on the surface of the second rotating rod (22); a second fixed rod (24) is fixedly mounted on the surface of the third shaft sleeve (23); one end of the second fixed rod (24) is fixedly connected to the mounting cylinder (3); a second sprocket (25) is fixedly mounted on one end of the second rotating rod (22); and a chain (26) is meshedly connected between the second sprocket (25) and the first sprocket (9).

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