Multi-stage crushing equipment for concrete recovery

Abstract

The invention discloses multi-stage crushing equipment for concrete recovery, and relates to the technical field of crushing. A supporting bearing is arranged between the left connecting block and the right connecting block, and the smashing cylinder is rotationally connected and arranged in the supporting bearing in a penetrating mode. The crushing motor is fixed in the middle of the bottom of the crushing cylinder; an output shaft of the crushing motor penetrates through a bottom plate of the crushing cylinder and then is arranged in the crushing cylinder; a plurality of crushing cutters are sequentially arranged on an output shaft of the crushing motor from top to bottom, the crushing cutters are sequentially enlarged from top to bottom, and the crushing cutters are arranged in a snake-shaped structure from top to bottom; the outer rotating motor is fixed at the bottom of the connecting block; an output shaft of the outward rotating motor penetrates through the connecting block and then is fixedly sleeved with a rotating gear, the crushing cylinder is fixedly sleeved with a driving gear, and the driving gear is meshed with the rotating gear; the concrete waste is subjected to multi-procedure operation, the purpose of sufficient grinding and smashing is achieved, and the smashing quality is improved.

Description

Technical Field

[0001] This invention relates to the field of crushing technology, and more specifically to multi-stage crushing equipment for concrete recycling. Background Technology

[0002] The construction of new buildings or the demolition of old buildings generate a large amount of waste concrete. In the past, the main method of disposal was to transport this waste concrete to the suburbs for dumping or burial, which not only occupied land but also caused environmental pollution. By preparing recycled concrete and recycling it, this waste concrete can be turned into a valuable resource, thereby effectively reducing carbon dioxide emissions and improving the environmental pollution problems caused by waste concrete disposal. The recycling process requires crushing the concrete, and the crushed material can be used for different construction needs depending on the size of the crushed material. However, the existing crushing equipment is not ideal in use. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a multi-stage crushing device for concrete recycling that is simple in structure, rationally designed, and easy to use. This device achieves thorough crushing and pulverization of concrete waste through multiple processes, thereby improving the crushing quality.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: it includes a feeding hopper and a crushing cylinder, and the left and right sides of the feeding hopper are fixed with supporting feet that are relatively fixed to each other; the crushing cylinder is provided on the lower side of the feeding hopper.

[0005] It also includes:

[0006] Two connecting blocks are respectively disposed on the left and right sides of the crushing cylinder, and the connecting blocks are connected to the two adjacent front and rear support legs; a support bearing is disposed between the two connecting blocks, and the crushing cylinder is screwed through the support bearing.

[0007] The crushing motor is fixed in the middle of the bottom of the crushing cylinder and is connected to an external power source. The output shaft of the crushing motor passes through the bottom plate of the crushing cylinder and is located inside the crushing cylinder. Several crushing blades are arranged sequentially from top to bottom on the output shaft of the crushing motor. The crushing blades are arranged in an increasing order from top to bottom and are arranged in a serpentine structure from top to bottom.

[0008] An external rotating motor is fixed to the bottom of the connecting block and connected to an external power source. The output shaft of the external rotating motor passes through the connecting block and is located on the upper side of the connecting block. A rotating gear is sleeved and fixed on the output shaft of the external rotating motor, and a drive gear is sleeved and fixed on the crushing cylinder. The drive gear and the rotating gear are meshed.

[0009] The grinding cylinder rotates by meshing with the drive gear, which in turn rotates the waste material. Several regularly spaced grinding blades rotate synchronously to grind the waste material that enters the grinding cylinder from the feed hopper.

[0010] As a further improvement of the present invention, the pulverizing blade located at the lowest side is disposed in close to the inner bottom surface of the pulverizing cylinder, and the outer side of the pulverizing blade at the lowest side is disposed in contact with the inner ring wall of the pulverizing cylinder.

[0011] The above technical solution design enables the waste material at the bottom of the crushing cylinder to be crushed.

[0012] As a further improvement of the present invention, four discharge grooves are equally spaced on the bottom circumference of the crushing cylinder; a limiting card is installed in the discharge groove, and the limiting card is set in an "L" shape. The upper surface of the horizontal end of the limiting card is flush with the inner bottom surface of the crushing cylinder, and the inner wall of the vertical end of the limiting card is in contact with the outer ring wall of the crushing cylinder; and a threaded rod is threaded through the vertical end of the limiting card. The inner end of the threaded rod is screwed into the outer ring wall of the crushing cylinder through a bearing, and a boss is provided on the outer end of the threaded rod.

[0013] Through the above technical solution design, the threaded rod drives the limit card to move, so that the crushed material flows out from the discharge trough.

[0014] As a further improvement of the present invention, a reinforcing seat is provided on the lower side of the crushing cylinder, and reinforcing feet are provided on both the left and right sides of the reinforcing seat, with the bottom of the reinforcing feet flush with the bottom of the supporting feet; a reinforcing motor is provided in the middle of the right side of the reinforcing seat, and the reinforcing motor is connected to an external power source; the output shaft of the reinforcing motor rotates through the right side plate of the reinforcing seat via a bearing and is fixed to a support shaft, and the left end of the support shaft is screwed through the left side plate of the reinforcing seat via a bearing and is exposed on the left side of the reinforcing seat; a drive gear is sleeved and fixed on the exposed end; auxiliary shafts are provided on both the front and rear sides of the support shaft, the right end of the auxiliary shaft is screwed to the right inner wall of the reinforcing seat via a bearing, and the left end of the auxiliary shaft is screwed through the left side plate of the reinforcing seat via a bearing and is exposed on the left side of the reinforcing seat, with an auxiliary gear sleeved and fixed on the exposed end, and the auxiliary gear meshing with the drive gear; reinforcing rollers are sleeved and fixed on both the support shaft and the auxiliary shaft, and adjacent reinforcing rollers are in contact with each other;

[0015] Through the above technical solution design, the active gear drives the auxiliary gear to rotate, causing the three reinforcing rollers to rotate, thereby enhancing the crushing operation of the waste material.

[0016] As a further improvement of the present invention, a discharge pipe is provided on the left side of the reinforcing seat, and the discharge pipe is located directly below the drive gear.

[0017] As a further improvement of the present invention, guide motors are arranged opposite each other on the front side of the feed hopper, and the guide motors are connected to an external power source; after the output shaft of the guide motor passes through the front side plate of the feed hopper, a guide shaft is fixed thereon, the rear end of the guide shaft is screwed together by a bearing, and feed rollers are sleeved and fixed on the guide shaft.

[0018] The above technical solution design uses two feed rollers to guide the waste material.

[0019] As a further improvement of the present invention, the feed hopper is provided with guide frames fixed to each other on the left and right sides, and the guide frames are located on the upper side of the feed roller. The guide ends of the guide frames are inclined from the outside to the inside and from the top to the bottom.

[0020] Through the above technical solution design, the guide frame guides the waste material, allowing it to enter between the two feed rollers.

[0021] With the above structure, the beneficial effects of the present invention are as follows:

[0022] 1. The rotation of the crushing drum and the counter-rotation of the crushing blades rotate and crush the waste material, and the setting of crushing blades of different specifications improves the crushing quality.

[0023] 2. The crushed waste material enters the reinforcing seat and is crushed more thoroughly by the cooperation between the reinforcing rollers. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the present invention.

[0026] Figure 2 yes Figure 1 A schematic diagram of the southeast isometric side.

[0027] Figure 3 This is a schematic diagram of the internal structure of the pulverizing barrel in this invention.

[0028] Figure 4 This is a schematic diagram of the shredder in this invention.

[0029] Figure 5 This is a schematic diagram of the reinforcing seat in this invention.

[0030] Figure 6This is a schematic diagram of the feed hopper in this invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Feed hopper; 2. Crushing cylinder; 2-1. Discharge chute; 3. Support foot; 4. Connecting block; 5. Support bearing; 6. Crushing motor; 7. Crushing blade; 8. External rotating motor; 9. Rotating gear; 10. Drive gear; 11. Limiting clip; 12. Threaded rod; 13. Boss; 14. Reinforcing seat; 15. Reinforcing foot; 16. Reinforcing motor; 17. Support shaft; 18. Drive gear; 19. Auxiliary shaft; 20. Auxiliary gear; 21. Reinforcing roller; 22. Discharge pipe; 23. Guide motor; 24. Guide shaft; 25. Feed roller; 26. Guide frame. Detailed Implementation

[0033] The invention will now be further described with reference to the accompanying drawings.

[0034] Example 1:

[0035] Please see Figures 1-6 This embodiment includes a feeding hopper 1 and a crushing cylinder 2. Support legs 3 are fixed to the left and right sides of the feeding hopper 1, with the front and rear sides facing each other. A guide motor 23 is arranged on the front side of the feeding hopper 1, with the guide motor 23 connected to an external power source. The output shaft of the guide motor 23 passes through the front side plate of the feeding hopper 1 and is fixed to a guide shaft 24. The rear end of the guide shaft 24 is screwed onto a bearing, and feeding rollers 25 are fitted and fixed onto each guide shaft 24. A guide frame 26 is fixed to the inside of the feeding hopper 1, with the guide frame 26 positioned above the feeding rollers 25. The guide end of the guide frame 26 is inclined downwards from the outside to the inside. The crushing cylinder 2 is located on the lower side of the feeding hopper 1.

[0036] It also includes:

[0037] There are two connecting blocks 4, which are respectively set on the left and right sides of the crushing cylinder 2, and the connecting blocks 4 are connected to the two adjacent front and rear support feet 3; a support bearing 5 is set between the two connecting blocks 4, and the crushing cylinder 2 is screwed through the support bearing 5.

[0038] The crushing motor 6 is fixed to the bottom center of the crushing cylinder 2 and is connected to an external power source. The specific model of the crushing motor 6 is purchased and installed directly from the market according to actual usage requirements. The output shaft of the crushing motor 6 passes through the bottom plate of the crushing cylinder 2 and is located inside the crushing cylinder 2. Several crushing blades 7 are arranged sequentially from top to bottom on the output shaft of the crushing motor 6. The crushing blades 7 are arranged in an increasing order from top to bottom and are arranged in a serpentine structure from top to bottom. The crushing blade 7 located at the bottommost side is attached to the inner bottom surface of the crushing cylinder 2, and the outer side of the bottommost crushing blade 7 is in contact with the inner ring wall of the crushing cylinder 2.

[0039] An external rotating motor 8 is fixed to the bottom of the connecting block 4 and is connected to an external power source. The specific model of the external rotating motor 8 is purchased and installed directly from the market according to actual usage requirements. The output shaft of the external rotating motor 8 passes through the connecting block 4 and is located on the upper side of the connecting block 4. A rotating gear 9 is sleeved and fixed on the output shaft of the external rotating motor 8. A drive gear 10 is sleeved and fixed on the crushing cylinder 2, and the drive gear 10 is meshed with the rotating gear 9.

[0040] Using the above design scheme, the crushing cylinder 2 is rotated by the meshing of the rotating gear 9 and the drive gear 10, which drives the waste material to rotate; several regularly spaced crushing blades 7 rotate synchronously to crush the waste material that enters the crushing cylinder 2 from the feed hopper 1.

[0041] Example 2:

[0042] Please see Figures 1-6 Based on Embodiment 1, further improvements are made. The bottom of the crushing cylinder 2 is provided with four discharge grooves 2-1 evenly distributed around its circumference. A limiting card 11 is installed inside the discharge groove 2-1. The limiting card 11 is designed with an "L" shape. The upper surface of the horizontal end of the limiting card 11 is flush with the inner bottom surface of the crushing cylinder 2. The inner wall of the vertical end of the limiting card 11 is in contact with the outer ring wall of the crushing cylinder 2. A threaded rod 12 is threaded through the vertical end of the limiting card 11. The inner end of the threaded rod 12 is screwed into the outer ring wall of the crushing cylinder 2 through a bearing. A boss 13 is provided at the outer end of the threaded rod 12.

[0043] Using the above design scheme, the threaded rod 12 drives the limit card 11 to move, so that the crushed material flows out from the discharge trough 2-1.

[0044] Example 3:

[0045] Please see Figures 1-6Based on Embodiment 1, further improvements are made. A reinforcing seat 14 is provided on the lower side of the crushing cylinder 2, and reinforcing feet 15 are provided on both the left and right sides of the reinforcing seat 14. The bottom of the reinforcing feet 15 is flush with the bottom of the supporting feet 3. A reinforcing motor 16 is provided in the middle of the right side of the reinforcing seat 14. The reinforcing motor 16 is connected to an external power supply. The specific model of the reinforcing motor 16 is purchased and installed directly from the market according to actual usage requirements. The output shaft of the reinforcing motor 16 rotates through the right side plate of the reinforcing seat 14 via a bearing and is fixed with a support shaft 17. The left end of the support shaft 17 is screwed through the left side plate of the reinforcing seat 14 via a bearing and exposed in the reinforcing seat 14. On the left side; a drive gear 18 is sleeved and fixed on the exposed end; auxiliary shafts 19 are provided on both the front and rear sides of the support shaft 17; the right end of the auxiliary shaft 19 is screwed to the right inner wall of the reinforcing seat 14 through a bearing; the left end of the auxiliary shaft 19 is screwed through the left side plate of the reinforcing seat 14 through a bearing and is exposed on the left side of the reinforcing seat 14, and an auxiliary gear 20 is sleeved and fixed on the exposed end, which meshes with the drive gear 18; reinforcing rollers 21 are sleeved and fixed on both the support shaft 17 and the auxiliary shaft 19, and adjacent reinforcing rollers 21 are in contact with each other; a discharge pipe 22 is provided on the left side of the reinforcing seat 14, and the discharge pipe 22 is located directly below the drive gear 18;

[0046] Using the above design scheme, the drive gear 18 drives the auxiliary gear 20 to rotate, causing the three reinforcing rollers 21 to rotate, thereby performing a more intensive crushing operation on the waste material.

[0047] In using this invention, concrete waste from hammering to remove reinforcing bars flows downwards from within the two guide frames 26 and between the left and right feed rollers 25. The two guide motors 23 are set in opposite directions of rotation, causing the two feed rollers 25 to rotate relative to each other, guiding and conveying the waste into the crushing cylinder 2. The external rotating motor 8 is started, causing the rotating gear 9 to mesh and drive the drive gear 10 to rotate, making the crushing cylinder 2 rotate around the hinge point of the support bearing 5, thus rotating the waste inside the crushing cylinder 2. Simultaneously, the crushing motor 6 is started, and the rotation direction of the crushing motor 6 is the same as that of the external rotating motor 8. The crushing motor 6 drives the crushing blade 7 to rotate, so that the rotation direction of the crushing blade 7 is opposite to that of the crushing cylinder 2, crushing the waste. During the process, the arrangement of several crushing blades 7 makes the waste material crushing more thoroughly. After crushing, the boss 13 is manually rotated to rotate the threaded rod 12, which moves the limit card 11 through the thread, exposing the discharge chute 2-1. The crushed waste material is driven by the bottom crushing blade 7 to flow down from the discharge chute 2-1 into the reinforcing seat 14. By starting the reinforcing motor 16, the drive gear 18 rotates and meshes with the auxiliary gear 20, causing the support shaft 17 and auxiliary shaft 19 to rotate, thereby rotating the reinforcing roller 21. The front reinforcing roller 21 and the back reinforcing roller 21 rotate in the same direction, which is opposite to the rotation direction of the middle reinforcing roller 21. This performs a secondary crushing operation on the waste material flowing in from the top, and the crushed material is discharged from the discharge pipe 22.

[0048] The beneficial effects of this specific embodiment after adopting the above structure are as follows:

[0049] 1. The rotation of the crushing drum 2 is opposite to the rotation of the crushing blades 7, which rotates and crushes the waste material. The setting of crushing blades 7 with different specifications improves the crushing quality.

[0050] 2. The crushed waste material enters the reinforcing seat 14 and is crushed by the cooperation of the reinforcing rollers 21, so that the waste material is crushed more thoroughly.

[0051] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A multi-stage crushing equipment for concrete recycling, comprising a feeding hopper (1) and a crushing cylinder (2), wherein the left and right sides of the feeding hopper (1) are fixed with support feet (3) in a front-to-back manner; and the crushing cylinder (2) is provided on the lower side of the feeding hopper (1). Its features are, It also includes: Connecting block (4), there are two connecting blocks (4), which are respectively set on the left and right sides of the crushing cylinder (2), and the connecting block (4) is connected to the two adjacent front and rear support feet (3); a support bearing (5) is set between the two connecting blocks (4), and the crushing cylinder (2) is screwed through the support bearing (5); The crushing motor (6) is fixed in the middle of the bottom of the crushing cylinder (2) and is connected to an external power source. The output shaft of the crushing motor (6) passes through the bottom plate of the crushing cylinder (2) and is set inside the crushing cylinder (2). Several crushing blades (7) are arranged on the output shaft of the crushing motor (6) from top to bottom. The crushing blades (7) are arranged in an increasing order from top to bottom and are arranged in a serpentine structure from top to bottom. An external rotating motor (8) is fixed to the bottom of the connecting block (4) and connected to an external power source. The output shaft of the external rotating motor (8) passes through the connecting block (4) and is located on the upper side of the connecting block (4). A rotating gear (9) is sleeved and fixed on the output shaft of the external rotating motor (8). A drive gear (10) is sleeved and fixed on the crushing cylinder (2), and the drive gear (10) meshes with the rotating gear (9).

2. The multi-stage crushing equipment for concrete recycling according to claim 1, characterized in that: The pulverizing blade (7) located at the bottom is fitted to the inner bottom surface of the pulverizing cylinder (2), and the outer side of the pulverizing blade (7) at the bottom is in contact with the inner ring wall of the pulverizing cylinder (2).

3. The multi-stage crushing equipment for concrete recycling according to claim 1, characterized in that: The bottom of the crushing cylinder (2) is provided with four discharge grooves (2-1) distributed at equal angles; a limiting card (11) is provided in the discharge groove (2-1), and the limiting card (11) is set with an "L" shaped structure. The upper surface of the horizontal end of the limiting card (11) is flush with the inner bottom surface of the crushing cylinder (2), and the inner wall of the vertical end of the limiting card (11) is in contact with the outer ring wall of the crushing cylinder (2); and a threaded rod (12) is threaded through the vertical end of the limiting card (11) by a threaded rotation. The inner end of the threaded rod (12) is screwed into the outer ring wall of the crushing cylinder (2) by a bearing, and a boss (13) is provided on the outer end of the threaded rod (12).

4. The multi-stage crushing equipment for concrete recycling according to claim 1, characterized in that: The crushing cylinder (2) is provided with a reinforcing seat (14) on its lower side, and reinforcing feet (15) are provided on both the left and right sides of the reinforcing seat (14), with the bottom of the reinforcing feet (15) flush with the bottom of the supporting feet (3); a reinforcing motor (16) is provided in the middle of the right side of the reinforcing seat (14), and the reinforcing motor (16) is connected to an external power source; the output shaft of the reinforcing motor (16) passes through the right side plate of the reinforcing seat (14) through a bearing and is fixed with a support shaft (17), and the left end of the support shaft (17) passes through the left side plate of the reinforcing seat (14) through a bearing and is exposed on the left side of the reinforcing seat (14); a sleeve is fitted on the exposed end. A drive gear (18) is fixedly mounted on the support shaft (17). Auxiliary shafts (19) are provided on both the front and rear sides of the support shaft (17). The right end of the auxiliary shaft (19) is screwed to the right inner wall of the reinforcing seat (14) through a bearing. The left end of the auxiliary shaft (19) is screwed through the left side plate of the reinforcing seat (14) through a bearing and exposed on the left side of the reinforcing seat (14). An auxiliary gear (20) is fitted and fixed on the exposed end. The auxiliary gear (20) meshes with the drive gear (18). Reinforcing rollers (21) are fitted and fixed on both the support shaft (17) and the auxiliary shaft (19). Adjacent reinforcing rollers (21) are in contact with each other.

5. The multi-stage crushing equipment for concrete recycling according to claim 4, characterized in that: The reinforcing seat (14) is provided with a discharge pipe (22) on the left side, and the discharge pipe (22) is located directly below the drive gear (18).

6. The multi-stage crushing equipment for concrete recycling according to claim 1, characterized in that: The feed hopper (1) is provided with guide motors (23) on the left and right sides of the front side, and the guide motors (23) are connected to an external power source. The output shaft of the guide motor (23) passes through the front side plate of the feed hopper (1) and is fixed with a guide shaft (24). The rear end of the guide shaft (24) is screwed together with a bearing, and feed rollers (25) are sleeved and fixed on the guide shaft (24).

7. The multi-stage crushing equipment for concrete recycling according to claim 6, characterized in that: The feed hopper (1) has guide frames (26) fixed to each other on the left and right sides, and the guide frames (26) are located on the upper side of the feed roller (25). The guide ends of the guide frames (26) are inclined from the outside to the inside and from the top to the bottom.

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