Crushing device for producing recycled asphalt mixture

Abstract

The utility model relates to the technical field of crushing devices, in particular to a crushing device for producing a recycled asphalt mixture. The device comprises a main body frame, the top of the main body frame is provided with a feeding port used for throwing asphalt, an inner cavity of the main body frame is provided with two crushing rollers used for crushing the asphalt, an inner cavity of the feeding port is provided with three fixing columns which are evenly distributed, and the surfaces of the three fixing columns are each provided with a plurality of spikes capable of separating large asphalt blocks. Massive asphalt entering from the feeding hole can be in contact with the spikes on the surfaces of the fixed columns. According to the utility model, through the three fixing columns in the feeding hole and the spikes on the surface, large blocks of adhered asphalt can be separated before the asphalt enters the inner cavity of the main body frame, the direct pressure of the crushing roller is reduced, the abrasion and damage risks of the crushing roller are reduced, and the three fixing columns are far away from one another, so that the large blocks of asphalt can be effectively prevented from blocking the feeding hole, and smooth feeding is ensured; and the asphalt which is preliminarily separated by the spikes is finely crushed by the crushing roller.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing devices, and more specifically, to a crushing device for producing recycled asphalt mixture. Background Technique

[0002] With the continuous development of the transportation industry, the demand for road construction and maintenance is increasing day by day. A large number of old roads need to be renovated and repaired, which generates a large amount of waste asphalt mixture. In order to reduce the exploitation of natural resources and environmental pollution, recycling these waste asphalt mixtures has become an important solution. Recycled asphalt mixture not only can reduce costs, but also has good performance and environmental benefits. In the process of processing recycled asphalt mixture, a crushing device is needed, and the role of the crushing device is crucial. It can break the large pieces of materials in the waste asphalt mixture into appropriate particle sizes for subsequent processing and treatment.

[0003] When the existing crushing device operates on asphalt, at first, the asphalt needs to be put on the surface of the crushing roller. However, most waste asphalt often adheres to each other and presents in large pieces before being put into the crushing device. When the large pieces of asphalt suddenly collide with the crushing roller, it will bring strong impact and severe friction to the surface of the crushing roller. Excessively large asphalt blocks may not be completely crushed to the desired particle size under the single action of the crushing roller. Content of the Utility Model

[0004] The purpose of the utility model is to solve the above-mentioned disadvantages and provide a crushing device for producing recycled asphalt mixture;

[0005] To achieve the above purpose, the utility model provides a crushing device for producing recycled asphalt mixture, including a main frame. A feeding port for throwing asphalt is arranged at the top of the main frame. Two crushing rollers for crushing asphalt are arranged in the inner cavity of the main frame. Three fixed columns are evenly distributed in the inner cavity of the feeding port. A plurality of spikes capable of separating large pieces of asphalt are respectively arranged on the surfaces of the three fixed columns. The large pieces of asphalt entering from the feeding port will contact the spikes on the surfaces of the fixed columns, and then the spikes will separate the large pieces of asphalt. The separated asphalt will fall into the inner cavity of the main frame and contact the crushing rollers, and then the crushing rollers will break the asphalt.

[0006] As a further improvement of the technical solution, both ends of the crushing roller are respectively rotated on the inner wall of the main frame through bearings. And, a transmission gear for driving its own rotation is configured at one end of the crushing roller. The outer edge of the transmission gear is meshed with a connecting gear, and the surface of the connecting gear is fixedly connected with a motor. Due to the rotation of the connecting gear driving the two transmission gears to move in different directions, the two crushing rollers connected to the transmission gears can crush the asphalt along with the movement of the transmission gears.

[0007] As a further improvement of this technical solution, three rotators are fixedly connected to the inner wall of the feed inlet. A support rod is rotatably connected to the inner wall of the rotator, and the surface of the support rod is fixedly connected to the inner wall of the fixed column.

[0008] As a further improvement of this technical solution, supports for support are arranged on the surface of the main body frame, and the two supports are distributed on both sides of the main body frame.

[0009] As a further improvement of this technical solution, a protection frame for supporting the motor is arranged on the surface of the main body frame. The bottom of the protection frame is fixed to the top of the support and is supported by the support.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] In the crushing device for producing recycled asphalt mixture, through the three fixed columns and the spikes on the surface in the feed inlet, large pieces of sticky asphalt can be separated before the asphalt enters the inner cavity of the main body frame, reducing the direct pressure on the crushing roller, reducing the risk of its wear and damage. The three fixed columns are spaced far apart, which can effectively prevent large pieces of asphalt from blocking the feed inlet and ensure smooth feeding. The asphalt preliminarily separated by the spikes is then finely crushed by the crushing roller, improving the overall crushing effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present utility model;

[0013] Figure 2 It is a schematic diagram of the transmission gear structure of the present utility model;

[0014] Figure 3 It is a schematic diagram of the structure at position A of the present utility model;

[0015] Figure 4 It is a schematic diagram of the crushing roller structure of the present utility model.

[0016] The meanings of each label in the figure are as follows:

[0017] 1. Main body frame; 10. Protection frame; 11. Feed inlet; 110. Rotator; 111. Support rod; 112. Fixed column; 113. Spike; 12. Support;

[0018] 2. Motor; 21. Connecting gear; 22. Transmission gear; 23. Crushing roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment

[0021] Please refer to Figures 1-4 As shown, this embodiment provides a crushing device for the production of recycled asphalt mixture, including a main body frame 1. When the existing crushing device crushes asphalt, at first, the asphalt needs to be put on the surface of the crushing roller. However, most waste asphalt often adheres to each other and presents in large chunks before being put into the crushing device. When the large chunks of asphalt suddenly collide with the crushing roller, it will bring strong impact and severe friction to the surface of the crushing roller. The too-large asphalt chunks may not be completely crushed to the desired particle size under the single action of the crushing roller. Therefore, a feeding port 11 for throwing asphalt is provided at the top of the main body frame 1. Two crushing rollers 23 for crushing asphalt are provided in the inner cavity of the main body frame 1. Three fixed columns 112 with uniform distribution are arranged in the inner cavity of the feeding port 11. A plurality of spikes 113 capable of separating large chunks of asphalt are respectively provided on the surfaces of the three fixed columns 112. The large chunks of asphalt entering from the feeding port 11 will contact the spikes 113 on the surface of the fixed columns 112, and then the spikes 113 will separate the large chunks of asphalt. The separated asphalt will fall into the inner cavity of the main body frame 1 and contact the crushing rollers 23, and then the crushing rollers 23 will crush the asphalt. By putting asphalt into the feeding port 11, at this time, the asphalt will first contact the spikes 113 on the surface of the fixed columns 112, and then the physical shape of the spikes 113 will crush the contacted asphalt to separate the larger chunks of asphalt. Moreover, the relatively large distance between the three fixed columns 112 can prevent the situation of blockage by large chunks of asphalt, and then the separated large chunks of asphalt will be finely crushed by the crushing rollers 23.

[0022] The improvement of this embodiment lies in:

[0023] Considering that when the existing crushing device crushes asphalt, at first, the asphalt needs to be put on the surface of the crushing roller. However, most waste asphalt often adheres to each other and presents in large chunks before being put into the crushing device. When the large chunks of asphalt suddenly collide with the crushing roller, it will bring strong impact and intense friction to the surface of the crushing roller. Excessively large asphalt blocks may not be completely crushed to the desired particle size under the single action of the crushing roller. Therefore, the three fixed columns 112 and the surface spikes 113 in the feed inlet 11 can separate the large and adhered asphalt before the asphalt enters the inner cavity of the main frame 1, reducing the direct pressure on the crushing roller 23 and the risk of its wear and damage. The three fixed columns 112 are spaced far apart, which can effectively prevent large asphalt blocks from blocking the feed inlet 11 and ensure smooth feeding. The asphalt preliminarily separated by the spikes 113 is then finely crushed by the crushing roller 23, improving the overall crushing effect and efficiency.

[0024] In order to enable the crushing roller 23 to rotate for crushing asphalt, therefore, both ends of the crushing roller 23 are rotatably connected to the inner wall of the main frame 1 through bearings. And one end of the crushing roller 23 is provided with a transmission gear 22 for driving its own rotation. The outer edge of the transmission gear 22 is meshed and connected with the connecting gear 21. The surface of the connecting gear 21 is fixedly connected to the motor 2. Since the rotation of the connecting gear 21 drives the two transmission gears 22 to move in different directions, the two crushing rollers 23 connected to the transmission gears 22 can crush the asphalt along with the movement of the transmission gears 22. By the operation of the motor 2, the connecting gear 21 can be driven to rotate. By the rotation of the connecting gear 21, the two transmission gears 22 can be made to move in different directions, and the crushing roller 23 will move along with the movement of the transmission gear 22, thereby crushing the asphalt.

[0025] In order to make the vibration generated when the crushing roller 23 rotates cause the fixed column 112 to shake, therefore, three rotators 110 are fixedly connected to the inner wall of the feed inlet 11. The inner wall of the rotator 110 is rotatably connected to a support rod 111. The surface of the support rod 111 is fixedly connected to the inner wall of the fixed column 112. The crushing of the asphalt by the crushing roller 23 will generate vibration, and this vibration will be transmitted through the main frame 1 to the rotator 110 on the inner wall of the feed inlet 11 to make the support rod 111 shake. By the shaking of the support rod 111, the fixed column 112 will be driven to shake so that the surface of the spike 113 will not stick to asphalt.

[0026] In order to enable the main frame 1 to fix the crushing roller 23, therefore, supports 12 for support are provided on the surface of the main frame 1. The two supports 12 are distributed on both sides of the main frame 1. By the provision of the supports 12, the main frame 1 can be supported.

[0027] In order to enable the motor 2 to drive the connecting gear 21 to rotate, the motor 2 needs to be supported. Therefore, a protective frame 10 for supporting the motor 2 is provided on the surface of the main body frame 1. The bottom of the protective frame 10 is fixed to the top of the bracket 12 and is supported by the bracket 12. The motor 2, the connecting gear 21 and the transmission gear 22 can be protected by the protective frame 10, and the bracket 12 can support the protective frame 10.

[0028] When the crushing device for producing recycled asphalt mixture of the present utility model is specifically used, asphalt is put into the feeding port 11. At this time, the asphalt will first contact the spikes 113 on the surface of the fixed column 112. Then, the physical shape of the spikes 113 will crush the contacted asphalt, separating the larger pieces of asphalt. Moreover, the relatively large distance between the three fixed columns 112 can prevent the situation of blockage by large pieces of asphalt. The rotation of the connecting gear 21 can be driven by the operation of the motor 2. The two transmission gears 22 can move in different directions by the rotation of the connecting gear 21, and the crushing roller 23 will move along with the movement of the transmission gear 22, thereby crushing the asphalt. The crushing of the asphalt by the crushing roller 23 will generate vibrations. These vibrations will be transmitted through the main body frame 1 to the rotator 110 on the inner wall of the feeding port 11, causing the support rod 111 to shake. The shaking of the support rod 111 will drive the fixed column 112 to shake, so that the surface of the spikes 113 will not stick to the asphalt.

[0029] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and do not limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A crushing device for the production of recycled asphalt mixture, comprising a main body frame (1), characterized in that: At the top of the main frame (1), there is a feed inlet (11) for throwing asphalt. Inside the cavity of the main frame (1), there are two crushing rollers (23) for crushing asphalt. Inside the cavity of the feed inlet (11), there are three fixed columns (112) evenly distributed. On the surfaces of the three fixed columns (112), there are multiple spikes (113) that can separate large pieces of asphalt. The large pieces of asphalt entering from the feed inlet (11) will come into contact with the spikes (113) on the surfaces of the fixed columns (112), and then the spikes (113) will separate the large pieces of asphalt. The separated asphalt will fall into the cavity of the main frame (1) and come into contact with the crushing rollers (23), and then the crushing rollers (23) will crush the asphalt.

2. The crushing device for producing recycled asphalt mixture according to claim 1, wherein: Both ends of the crushing roller (23) are rotatably connected to the inner wall of the main frame (1) through bearings. And one end of the crushing roller (23) is configured with a transmission gear (22) for driving its own rotation. The outer edge of the transmission gear (22) is meshed and connected with a connecting gear (21). The surface of the connecting gear (21) is fixedly connected to the motor (2). Since the rotation of the connecting gear (21) drives the two transmission gears (22) to move in different directions, the two crushing rollers (23) connected to the transmission gears (22) can crush the asphalt along with the movement of the transmission gears (22).

3. The crushing device for producing recycled asphalt mixture according to claim 1, wherein: Three rotators (110) are fixedly connected to the inner wall of the feed inlet (11). Inside the rotators (110), there are support rods (111) rotatably connected. The surfaces of the support rods (111) are fixedly connected to the inner walls of the fixed columns (112).

4. The crushing device for producing recycled asphalt mixture according to claim 3, wherein: On the surface of the main frame (1), there are supports (12) for support. The supports (12) are two and are distributed on both sides of the main frame (1).

5. The crushing device for the production of recycled asphalt mixture according to claim 4, characterized in that: On the surface of the main frame (1), there is a protection frame (10) for supporting the motor (2). The bottom of the protection frame (10) is fixedly connected to the top of the support (12) and is supported by the support (12).

Images