Crushing device for recycling old road materials in cities and towns

Abstract

The utility model discloses a crushing device for recycling old road materials in cities and towns. The crushing device comprises a crushing box, a circulating feeding assembly and a first driving assembly, semi-cylinders are installed on the two sides of the upper portion of the interior of the crushing box, a rotating shaft is rotationally installed on the upper portion of the interior of the crushing box, and crushing rollers are installed on the rotating shaft. According to the crushing device for recycling the old road materials in cities and towns, the old road materials can be crushed through the two sides of the crushing roller, so that the crushing efficiency of the old road materials is improved, and the crushed old road materials are screened under the action of the V-shaped screen support and the screen; and the old road materials which do not pass through screening and cannot be recycled pass through the discharging groove, the circulating feeding assembly and the discharging groove and are put into the crushing box again to be subjected to secondary crushing, and therefore the crushing effect on the urban old road materials is further improved through the circulating and reciprocating crushing process of the old road materials which do not pass through screening and cannot be recycled.

Description

Technical Field

[0001] This utility model relates to the technical field of crushing equipment for old urban road materials, specifically a crushing device for the recycling of old urban road materials. Background Technology

[0002] During major and minor repairs and maintenance of urban roads, a large amount of old materials are inevitably generated, such as replaced old asphalt, curb stones, pavers, motor vehicle and non-motor vehicle guardrails, and traffic piers. Among these, old asphalt is the most abundant, and it mainly consists of four parts: asphalt material, aggregates, fillers, and admixtures. After a long period of use, old asphalt concrete gradually loses its original properties, meaning that after prolonged use, the road surface needs to be removed and repaved. Large milling machines are used to recover the asphalt pavement material, which is then collected and crushed. However, existing crushing devices for recycling old urban road materials cannot repeatedly crush the old materials, leading to a decrease in crushing efficiency. Therefore, we propose a crushing device for recycling old urban road materials. Utility Model Content

[0003] The technical problem this invention aims to solve is to overcome existing defects and provide a crushing device for recycling old urban road materials. The old road materials are fed into the crushing box from the feeding chute. Activating the first drive assembly drives the rotating shaft, which in turn drives the crushing roller. The rotating roller, in conjunction with the semi-cylinders on both sides, crushes the old road materials. Crushing the materials from both sides of the roller improves the crushing efficiency. The crushed materials are then screened by a V-shaped screen support and the screen itself. Materials that fail the screening and cannot be recycled are fed back into the crushing box for secondary crushing via the discharge chute, the circulating feeding assembly, and the feeding chute. This repeated crushing process further improves the crushing effect on old urban road materials, effectively solving the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a crushing device for recycling old urban road materials, comprising a crushing box, a circulating feeding assembly, and a first driving assembly;

[0005] The crushing box has semi-cylinders installed on both sides of its upper interior. A rotating shaft is rotatably installed on the upper interior of the crushing box, and a crushing roller is mounted on the rotating shaft. Both the crushing roller and the outer surface of the semi-cylinders are provided with a pair of crushing blades. A V-shaped screen support is installed in the middle of the crushing box, and screens are provided on both sides of the V-shaped screen support. Discharge chutes are opened on the side walls of the crushing box corresponding to the two ends of the V-shaped screen support. Circulating feeding components are installed on both sides of the crushing box. A discharge port is opened on the lower front side of the crushing box. A first drive component is installed on the front side of the crushing box, and the first drive component is connected to the rotating shaft. Discharge chutes are opened on both sides of the upper surface of the crushing box.

[0006] Furthermore, the circulating feeding assembly includes an arched frame and a groove formed on the bottom side of the crushing box. A first electric push rod is installed on the side wall of the groove. The lower end of the arched frame is slidably installed in the groove and connected to the first electric push rod. A lead screw is rotatably installed on the upper surface of the lower end of the arched frame. The upper end of the lead screw is rotatably connected to the upper end of the arched frame. A second drive assembly is installed on the upper surface of the upper end of the arched frame and connected to the lead screw. A moving block is threaded onto the lead screw. A connecting bracket is installed on the right side of the moving block. A material box is installed on the outer end of the connecting bracket. The material box is located below the discharge chute. A limit block is installed on the left side of the moving block. A limit groove is formed on the inner side of the arched frame. The limit block and the limit groove are slidably connected. An inclined groove is formed on the side of the upper surface of the crushing box and communicates with the corresponding discharge chute. Unseen and unrecyclable road materials are fed into the material box by the V-shaped screen support and discharge chute. Then, the second drive assembly is activated to rotate the lead screw. The rotation of the lead screw, under the limiting action of the limit block and the limit groove, drives the moving block to move upward until the material box is above the crushing box. The first electric push rod drives the bow frame to move, moving the material box towards the crushing box until the material box is above the inclined chute. Under the action of the second electric push rod and the sliding baffle, the unseen and unrecyclable road materials are fed back into the crushing box.

[0007] Furthermore, it also includes a second electric push rod and a sliding baffle. A through slot is provided on the side of the material box near the crushing chamber. The second electric push rod is installed on the upper surface of the end of the material box, and a sliding baffle is installed on the lower end of the second electric push rod. The sliding baffle is slidably installed in the through slot. The second electric push rod drives the sliding baffle to move downward, thereby opening the through slot to facilitate the re-feeding of old road materials that have not passed screening and cannot be recycled back into the crushing chamber.

[0008] Furthermore, the first drive assembly includes a second motor bracket mounted on the front side of the crushing chamber. A second motor is mounted on the second motor bracket, and the output shaft of the second motor is connected to one end of the rotating shaft via a first coupling. The input end of the second motor is electrically connected to the output end of an external controller. The second motor is controlled by the external controller, and its operation drives the rotating shaft to rotate, thereby electrically completing the rotation of the rotating shaft.

[0009] Furthermore, the second drive assembly includes a first motor bracket mounted on the upper end of the bow-shaped frame. A first motor is mounted on the first motor bracket, and the output shaft of the first motor is connected to one end of the lead screw via a second coupling. The input end of the first motor is electrically connected to the output end of an external controller. The external controller controls the operation of the first motor, which drives the lead screw to rotate, thereby electrically completing the rotation of the lead screw.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, the old road material for recycling in urban areas is fed into the crushing box from the feeding chute. The first drive component is started to drive the rotating shaft to rotate, which in turn drives the crushing roller to rotate. The rotating crushing roller, in conjunction with the semi-cylinders on both sides, crushes the old road material. The crushing roller can crush the old road material from both sides, thereby improving the crushing efficiency. The crushed old road material is screened by the V-shaped screen support and the screen. The old road material that fails to pass the screening and cannot be recycled is fed back into the crushing box for secondary crushing through the discharge chute, the circulating feeding component, and the feeding chute. Thus, through the repeated crushing process of the old road material that fails to pass the screening and cannot be recycled, the crushing effect of the old road material in urban areas is further improved. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0013] In the diagram: 1 Crushing box, 2 Lead screw, 3 Moving block, 4 Material box, 5 Bow-shaped frame, 6 First electric push rod, 7 First motor bracket, 8 First motor, 9 Second motor, 10 Second motor bracket, 11 Discharge port, 12 Inclined chute, 13 Feed chute, 14 Discharge chute, 15 Second electric push rod, 16 Sliding baffle, 17 Screen, 18 V-shaped screen bracket, 19 Semi-cylinder, 20 Crushing roller, 21 Rotary shaft. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-2 This embodiment provides a technical solution: a crushing device for recycling old urban road materials, including a crushing box 1, a circulating feeding component and a first driving component;

[0016] Semi-cylinders 19 are installed on both sides of the upper part of the crushing box 1. A rotating shaft 21 is rotatably installed on the upper part of the crushing box 1. A crushing roller 20 is installed on the rotating shaft 21. The outer surfaces of the crushing roller 20 and the semi-cylinders 19 are provided with a pair of crushing blades. A V-shaped screen support 18 is installed in the middle of the crushing box 1. Screens 17 are provided on both sides of the V-shaped screen support 18. Discharge chute 14 is opened on both ends of the side wall of the crushing box 1 corresponding to the V-shaped screen support 18. Circulating feeding components are installed on both sides of the crushing box 1. A discharge port 11 is opened on the lower front side of the crushing box 1. A first drive component is installed on the front side of the crushing box 1. The first drive component is connected to the rotating shaft 21. Discharge chute 13 is opened on both sides of the upper surface of the crushing box 1.

[0017] In use, old urban road materials are fed into the crushing box 1 from the feeding chute 13. The first drive component is started to drive the rotating shaft 21 to rotate. The rotating shaft 21 drives the crushing roller 20 to rotate. The rotating crushing roller 20 cooperates with the semi-cylinders 19 on both sides to crush the old road materials. The crushing roller 20 can crush the old road materials from both sides, thereby improving the crushing efficiency of the old road materials. The crushed old road materials are screened by the V-shaped screen support 18 and the screen 17. The old road materials that fail to pass the screening and cannot be recycled are put back into the crushing box 1 for secondary crushing through the discharge chute 14, the circulating feeding component and the feeding chute 13. Thus, through the repeated crushing process of the old road materials that fail to pass the screening and cannot be recycled, the crushing effect of the old urban road materials is further improved.

[0018] The circulating feeding assembly includes an arc-shaped frame 5 and a groove on the bottom side of the crushing box 1. A first electric push rod 6 is installed on the side wall of the groove. The lower end of the arc-shaped frame 5 is slidably installed in the groove and connected to the first electric push rod 6. A lead screw 2 is rotatably installed on the upper surface of the lower end of the arc-shaped frame 5. The upper end of the lead screw 2 is rotatably connected to the upper end of the arc-shaped frame 5. A second drive assembly is installed on the upper surface of the upper end of the arc-shaped frame 5 and connected to the lead screw 2. A moving block 3 is threaded on the lead screw 2. A connecting bracket is installed on the right side of the moving block 3. A material box 4 is installed on the outer end of the connecting bracket. The material box 4 is located below the discharge chute 14. A limit block is installed on the left side of the moving block 3. A limit groove is opened on the inner side of the arc-shaped frame 5. The limit block and the limit groove are slidably connected. An inclined groove 12 is opened on the side of the upper surface of the crushing box 1. The inclined groove 12 is connected to the corresponding discharge chute 13. Unscreened and non-recyclable old road materials are fed into the material box 4 by the V-shaped screen support 18 and the discharge chute 14. Then, the second drive assembly is activated to drive the lead screw 2 to rotate. The rotation of the lead screw 2, under the limiting action of the limiting block and the limiting groove, drives the moving block 3 to move upward until the material box 4 is above the crushing box 1. The first electric push rod 6 drives the bow frame 5 to move, moving the material box 4 towards the crushing box 1 until the material box 4 is above the inclined chute 12. Under the action of the second electric push rod 15 and the sliding baffle 16, the unscreened and non-recyclable old road materials are fed back into the crushing box 1.

[0019] It also includes a second electric push rod 15 and a sliding baffle 16. A through groove is opened on the side of the material box 4 near the crushing box 1. The second electric push rod 15 is installed on the upper surface of the end of the material box 4, and the sliding baffle 16 is installed on the lower end of the second electric push rod 15. The sliding baffle 16 is slidably installed in the through groove. The second electric push rod 15 drives the sliding baffle 16 to move downward, so that the through groove is opened, so that old road materials that have not passed screening and cannot be recycled can be fed back into the crushing box 1.

[0020] The first drive assembly includes a second motor bracket 10 installed on the front side of the crushing box 1. A second motor 9 is mounted on the second motor bracket 10. The output shaft of the second motor 9 is connected to one end of the rotating shaft 21 via a first coupling. The input end of the second motor 9 is electrically connected to the output end of an external controller. The second motor 9 is controlled by the external controller to drive the rotating shaft 21 to rotate, thereby completing the rotation of the rotating shaft 21 electrically.

[0021] The second drive assembly includes a first motor bracket 7 mounted on the upper end of the bow-shaped frame 5. A first motor 8 is mounted on the first motor bracket 7. The output shaft of the first motor 8 is connected to one end of the lead screw 2 via a second coupling. The input end of the first motor 8 is electrically connected to the output end of an external controller. The first motor 8 is controlled by the external controller to operate, and the operation of the first motor 8 drives the lead screw 2 to rotate, thereby completing the rotation of the lead screw 2 electrically.

[0022] The working principle of the crushing device for recycling old urban road materials provided by this utility model is as follows: In use, the old urban road materials are put into the crushing box 1 from the feeding trough 13. The first drive component is started to drive the rotating shaft 21 to rotate. The rotating shaft 21 drives the crushing roller 20 to rotate. The rotating crushing roller 20 cooperates with the semi-cylinders 19 on both sides to crush the old road materials. The crushing roller 20 can crush the old road materials on both sides to improve the crushing efficiency of the old road materials. The crushed old road materials are screened by the V-shaped screen support 18 and the screen 17. The old road materials that fail to pass the screening and cannot be recycled are put back into the crushing box 1 for secondary crushing through the discharge trough 14, the circulating feeding component and the feeding trough 13. Thus, through the repeated crushing process of the old road materials that fail to pass the screening and cannot be recycled, the crushing effect of the old urban road materials is further improved. Unscreened and non-recyclable road materials are fed into the material box 4 by the V-shaped screen support 18 and the discharge chute 14. Then, the second drive assembly is activated, driving the lead screw 2 to rotate. The lead screw 2, under the limiting action of the limiting block and the limiting groove, moves the moving block 3 upwards until the material box 4 is above the crushing chamber 1. The first electric push rod 6 then moves the bow-shaped frame 5, moving the material box 4 towards the crushing chamber 1 until it is above the inclined chute 12. Under the action of the second electric push rod 15 and the sliding baffle 16, the unscreened and non-recyclable road materials are fed back into the crushing chamber 1. The second electric push rod 15 moves the sliding baffle 16 downwards, opening the passageway to allow the unscreened and non-recyclable road materials to be fed back into the crushing chamber 1. An external controller controls the second motor 9, which drives the rotating shaft 21 to rotate, thus electrically completing the rotation of the rotating shaft 21. The first motor 8 is controlled by an external controller, which drives the lead screw 2 to rotate, thereby completing the rotation of the lead screw 2 electrically.

[0023] It is worth noting that in this embodiment, the core chip of the external controller is an STC microcontroller, specifically the STC15W204S. The first motor 8 and the second motor 9 can be freely configured according to the actual application scenario. The external controller controls the operation of the first motor 8 and the second motor 9 using methods commonly used in the prior art, and the content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0024] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A crushing device for recycling of urban road materials, characterized in that: Including broken case (1), circulating feeding assembly and first drive assembly; The upper part of the inside of the broken case (1) is provided with a semicircular column (19) on both sides, a rotating shaft (21) is rotatably installed on the upper part of the inside of the broken case (1), a broken roller (20) is installed on the rotating shaft (21), the outer surfaces of the broken roller (20) and the semicircular column (19) are provided with a pair of broken blades, a V-shaped screen support (18) is installed in the middle of the inside of the broken case (1), both sides of the V-shaped screen support (18) are provided with a screen (17), both ends of the V-shaped screen support (18) correspond to the side wall of the broken case (1) and are provided with a discharge chute (14), both sides of the broken case (1) are provided with a circulating feeding assembly, a discharge port (11) is formed in the lower part of the front side of the broken case (1), a first drive assembly is installed on the front side of the broken case (1), the first drive assembly is connected with the rotating shaft (21), and lower discharge chutes (13) are formed in the upper surfaces of both sides of the broken case (1). The circulating feeding assembly comprises an arc-shaped frame (5) and a groove formed in the side of the bottom of the broken case (1), a first electric push rod (6) is installed on the side wall of the groove, the lower end of the arc-shaped frame (5) is slidably installed in the groove, the lower end of the arc-shaped frame (5) is connected with the first electric push rod (6), a lead screw (2) is rotatably installed on the upper end of the lower end of the arc-shaped frame (5), the upper end of the lead screw (2) is rotatably connected with the upper end of the arc-shaped frame (5), a second drive assembly is installed on the upper end of the arc-shaped frame (5), the second drive assembly is connected with the lead screw (2), a moving block (3) is threadedly installed on the lead screw (2), a connecting support is installed on the right side of the moving block (3), a material box (4) is installed on the outer end of the connecting support, the material box (4) is located below the discharge chute (14), a limiting block is installed on the left side of the moving block (3), a limiting groove is formed in the inner side of the arc-shaped frame (5), the limiting block and the limiting groove are slidably connected, and an inclined chute (12) is formed in the side of the upper surface of the broken case (1) and communicates with the corresponding lower discharge chute (13).

2. The crushing device for recycling of urban road materials according to claim 1, characterized in that: The first drive assembly comprises a second motor support (10) installed on the front side of the broken case (1), a second motor (9) is installed on the second motor support (10), the output shaft of the second motor (9) is connected to one end of the rotating shaft (21) through a first shaft coupling, and the input end of the second motor (9) is electrically connected with the output end of an external controller.

3. The crushing device for recycling of urban road materials according to claim 1, characterized in that: The first drive assembly comprises a second motor support (10) installed on the front side of the broken case (1), a second motor (9) is installed on the second motor support (10), the output shaft of the second motor (9) is connected to one end of the rotating shaft (21) through a first shaft coupling, and the input end of the second motor (9) is electrically connected with the output end of an external controller.

4. The crushing device for recycling of urban road materials according to claim 1, characterized in that: The second driving assembly comprises a first motor support (7) installed on the upper end of the arc-shaped frame (5), a first motor (8) is installed on the first motor support (7), the output shaft of the first motor (8) is connected to one end of the lead screw (2) through a second coupling, and the input end of the first motor (8) is electrically connected to the output end of the external controller.

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