Rubber powder production equipment for composite modified asphalt

Abstract

The invention relates to rubber powder production equipment for composite modified asphalt, and relates to the technical field of rubber powder production. The rubber powder production equipment for the composite modified asphalt comprises an equipment body and a crushing mechanism, the crushing mechanism comprises a crushing disc, a rotating assembly and a crushing knife roll, and the crushing disc and the crushing knife roll are both arranged in a cavity of the equipment body and rotationally connected with the equipment body; the rotating assembly is used for driving the crushing disc to rotate, the crushing knife roll is located above the end of the crushing disc, a cooling mechanism is further arranged in the equipment body and comprises an air conveying pipe, one end of the air conveying pipe is used for being communicated with a cold air source, and the other end of the air conveying pipe is communicated with a cavity of the equipment body. And the introduced cold air can reduce the temperature of the surface of the crushing knife roll. The rubber crushing device has the effect of reducing the probability that rubber is softened and adhered to the crushing knife roll.

Description

Technical Field

[0001] This application relates to the field of rubber powder production technology, and in particular to a rubber powder production equipment for composite modified asphalt. Background Technology

[0002] When cracks appear in asphalt pavements such as highways and municipal roads, asphalt sealant is needed to repair them. To improve the performance of asphalt sealant, raw materials such as rubber powder are added and thoroughly mixed to modify the sealant, resulting in a higher quality product and extending the service life of asphalt roads. Rubber powder mainly comes from blocky rubber materials, such as waste rubber tires. A rubber shredder is used to crush these blocky rubber materials into rubber powder.

[0003] Regarding the aforementioned technologies, in the existing rubber pulverizers, the surface of the pulverizing rollers generates a lot of heat when pulverizing rubber. This makes the rubber easily soften when it comes into contact with the pulverizing rollers, causing it to adhere to the rollers. This reduces the pulverizing effect of the rollers on the subsequent rubber, thereby reducing the pulverizing efficiency of the rubber pulverizer and leading to a decrease in rubber production efficiency. Therefore, improvements are needed. Summary of the Invention

[0004] To reduce the likelihood of rubber softening and adhering to the crushing roller, this application provides a rubber powder production device for composite modified asphalt.

[0005] This application provides a technical solution that adopts the following approach: A rubber powder production device for composite modified asphalt includes a device body and a crushing mechanism. The crushing mechanism includes a crushing disc, a rotating assembly, and a crushing roller. The crushing disc and the crushing roller are both disposed within the cavity of the device body and are rotatably connected to the device body. The rotating assembly is used to drive the crushing disc to rotate. The crushing roller is located above the end of the crushing disc. The device body also includes a cooling mechanism, which includes an air supply pipe. One end of the air supply pipe is connected to a cold air source, and the other end of the air supply pipe is connected to the cavity of the device body, so that the introduced cold air can reduce the temperature of the surface of the crushing roller.

[0006] By adopting the above technical solution, compared with the prior art, the large amount of heat generated on the surface of the crushing roller makes the rubber more prone to softening upon contact with the crushing roller, thus adhering to the crushing roller and reducing the crushing effect of the crushing roller on the subsequent rubber. This application, through the setting of the cooling mechanism, allows the cold air introduced into the equipment body cavity through the air supply pipe to reduce the temperature of the crushing roller surface through heat transfer after contact with the crushing roller surface, thereby reducing the probability of the rubber softening upon contact with the crushing roller and adhering to the crushing roller surface, thus effectively ensuring the crushing effect of the crushing roller on the subsequent rubber, thereby ensuring the use effect of this application and ensuring the production efficiency of rubber powder.

[0007] Preferably, the number of the crushing rollers is set to several, and they are located on different sides of the crushing disc. The cooling mechanism also includes a gas equalization hood, which is located at the center of the crushing disc and connected to the equipment body. The bottom of the gas equalization hood is connected to the air supply pipe, and several gas equalization holes are opened on the side wall of the gas equalization hood.

[0008] By adopting the above technical solution, the gas equalization hood is positioned at the center of the crushing disc, allowing the gas introduced through the gas supply pipe to be dispersed by the gas equalization hood. This disperses the gas evenly around the crushing disc through several gas equalization holes, thereby blowing the rubber and keeping it close to the crushing rollers for conveying. At the same time, it also cools down each crushing roller, effectively ensuring the performance of the crushing rollers.

[0009] Preferably, the device body is also provided with a pushing mechanism, which includes a setting frame, a pushing frame and a sliding component. One end of the setting frame is connected to the inner wall of the device body and the other end is connected to the gas equalization hood. The pushing frame is slidably connected to the setting frame, and the sliding direction is the extension direction of the setting frame. The sliding component is used to drive the pushing frame to slide. The bottom of the pushing frame abuts against the top of the crushing disc.

[0010] By adopting the above technical solution and setting the feeding mechanism, the sliding component can drive the feeding frame to slide during the rotation of the crushing disc, thereby causing the feeding frame to move from the side near the gas equalization hood to the end near the crushing disc. This pushes the larger rubber particles remaining on the crushing disc to the edge of the crushing disc, reducing the probability of rubber remaining on the crushing disc and thus ensuring the crushing effect of the rubber.

[0011] Preferably, the pusher includes a sliding part and a lifting part. The sliding part is slidably connected to the mounting frame, and the lifting part is slidably connected to the sliding part. The sliding direction is the height direction of the sliding part. The pusher mechanism also includes a driving member. The driving member is used to drive the sliding part to slide upward when it is away from the material equalization cover, thereby disengaging from the top wall of the crushing disc, and to drive it to slide downward when it is close to the material equalization cover, thereby abutting against the top wall of the crushing disc.

[0012] By adopting the above technical solution, the arrangement of the pusher and the drive unit allows the lifting unit to slide upwards when it is away from the uniform material cover under the action of the drive unit during the sliding process, thereby detaching from the top wall of the crushing disc. This reduces the probability of the rubber moving towards the uniform material cover during its own back-moving process. When it is close to the uniform material cover, it slides downwards and abuts against the top wall of the crushing disc, continuing to push the rubber towards the edge of the crushing disc.

[0013] Preferably, the pusher also includes an abutment part, which is slidably connected to the lifting part and slides in a horizontal direction. The abutment part abuts against the top wall of the crushing disc. The sliding part is also provided with a linkage component, and the lifting part drives the abutment part to slide when it slides through the linkage component.

[0014] By adopting the above technical solution, the setting of the abutting part allows the abutting part to slide relative to the lifting part under the action of the linkage component during the process of the lifting part sliding upward and separating from the top of the crushing disc. This allows the end wall of the abutting part to separate from the lifting part, so that the fine rubber or rubber powder remaining between the end of the abutting part and the lifting part can fall off spontaneously under the influence of gravity or cold air, thereby reducing the probability of rubber adhering between the abutting part and the lifting part.

[0015] Preferably, the linkage component includes a linkage frame, one end of which is rotatably connected to the sliding part, and the other end is inclined downward and rotatably connected to the abutment part.

[0016] By adopting the above technical solution and setting the linkage frame, during the upward sliding of the lifting part, the lifting part can drive one end of the linkage frame to rotate relative to the sliding part, thereby enabling the other end of the linkage frame to drive the abutment part to slide relative to the lifting part, thus realizing the linkage between the lifting part and the abutment part, saving the active device for driving the sliding of the abutment part, and enabling the abutment part to spontaneously perform adaptive movement with the lifting part.

[0017] Preferably, a drive groove is provided on the side wall of the mounting frame. The drive groove is annular. One end of the lifting part extends into the drive groove and abuts against the inner wall of the drive groove. The drive component includes a return spring, which is used to allow the lifting part to slide upward to the top of its sliding path by its own elastic force.

[0018] By adopting the above technical solution, the configuration of the drive groove and the return spring allows the inner wall of the drive groove to abut against the end of the lifting part during the sliding process, thereby driving the lifting part to slide. As the inner wall of the drive groove gradually releases the restriction on the lifting part in the height direction, the return spring can use its own elasticity to allow the lifting part to gradually return to its initial height. This effectively drives the back-and-forth sliding of the lifting part, while eliminating the need for additional active components, saving installation space, and reducing the probability of rubber powder entering the active component and causing damage to it.

[0019] Preferably, the sliding assembly includes a crank frame, a transmission frame, and a rotating component. One end of the crank frame is rotatably connected to the mounting frame, and the rotating component is used to drive the crank frame to rotate. One end of the transmission frame is rotatably connected to the end of the crank frame away from the mounting frame, and the other end is rotatably connected to the pusher frame.

[0020] By adopting the above technical solution and configuring the sliding component, when it is necessary to drive the sliding part to slide, the rotating component can drive the crank frame to rotate, causing one end of the crank frame to drive the transmission frame to swing, which in turn causes the transmission frame to drive the sliding part to move, thereby realizing the driving of the sliding part to slide and effectively facilitating the operation of relevant personnel.

[0021] Preferably, the length of the crank bracket is less than the length of the transmission frame.

[0022] By adopting the above technical solution, the crank frame and transmission frame are configured such that the crank frame, transmission frame and sliding part can form a crank-slider mechanism. This allows the rotating part to reciprocate by driving the transmission frame to oscillate when the crank frame rotates in a circular motion, thereby driving the sliding part to slide back and forth, which effectively facilitates the driving of the sliding part.

[0023] Preferably, the number of the feeding mechanism is set to several, and all of them are located between several of the crushing rollers.

[0024] By adopting the above technical solution and setting up several feeding mechanisms, it is possible to effectively ensure that each feeding mechanism can push the rubber into the space between the crushing rollers, thereby effectively ensuring the uniformity of rubber conveying.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The cooling mechanism is designed so that the cold air introduced into the equipment body cavity through the air supply pipe can reduce the temperature of the crushing roller surface through heat transfer after contacting the crushing roller surface. This reduces the probability that the rubber after contacting the crushing roller will soften after being heated and adhere to the crushing roller surface, thereby effectively ensuring the crushing effect of the crushing roller on the subsequent rubber, thus ensuring the use effect of this application and ensuring the production efficiency of rubber powder. 2. The gas equalization hood is positioned at the center of the crushing disc, allowing the gas introduced through the gas supply pipe to be dispersed by the hood and blown evenly around the crushing disc through several gas equalization holes. This blows the rubber, keeping it close to the crushing rollers and conveying it. At the same time, it also cools each crushing roller, effectively ensuring the performance of the crushing rollers. 3. The feeding mechanism is designed so that during the rotation of the crushing disc, the sliding component can drive the feeding frame to slide, thereby causing the feeding frame to move from the side near the air distribution hood to the end near the crushing disc. This pushes the larger pieces of rubber remaining on the crushing disc to the edge of the crushing disc, reducing the chance of rubber remaining on the crushing disc and thus ensuring the crushing effect of the rubber. Attached Figure Description

[0026] Figure 1 This is a schematic diagram illustrating the overall structure of the rubber powder production equipment used for composite modified asphalt in the embodiments of this application.

[0027] Figure 2 This is a schematic diagram illustrating the structure of the crushing mechanism in the embodiments of this application.

[0028] Figure 3 This is a structural schematic diagram illustrating the pusher frame in the embodiments of this application.

[0029] Figure 4 This is a structural schematic diagram illustrating the mounting frame in the embodiments of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Equipment body; 2. Crushing mechanism; 21. Crushing disc; 22. Rotating component; 23. Crushing roller; 3. Cooling mechanism; 31. Air supply pipe; 32. Air distribution hood; 321. Air distribution hole; 4. Pushing mechanism; 41. Setting frame; 411. Drive groove; 42. Pushing frame; 421. Sliding part; 422. Lifting part; 423. Abutting part; 43. Sliding component; 431. Crank frame; 432. Transmission frame; 433. Rotating component; 434. Rotating shaft; 435. Bevel gear; 44. Drive component; 441. Return spring; 45. Linkage component; 451. Linkage frame; 5. Drive rod; 6. Elastic component. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] This application discloses an apparatus for producing rubber powder for composite modified asphalt. (See also...) Figure 1 and Figure 2 The rubber powder production equipment for composite modified asphalt includes a main body 1 and a crushing mechanism 2. The crushing mechanism 2 includes a crushing disc 21, a rotating assembly 22, and a crushing roller 23. Both the crushing disc 21 and the crushing roller 23 are disposed within the cavity of the main body 1 and are rotatably connected to it. The rotating assembly 22 drives the crushing disc 21 to rotate. The crushing roller 23 is located above the end of the crushing disc 21. A cooling mechanism 3 is also provided within the main body 1. The cooling mechanism 3 includes an air supply pipe 31. One end of the air supply pipe 31 is connected to a cold air source, and the other end of the air supply pipe 31 is connected to the cavity of the main body 1, so that the incoming cold air can reduce the surface temperature of the crushing roller 23.

[0033] Reference Figure 2 One end of the gas supply pipe 31 is located on the outside of the device body 1 and is connected to a cold gas source. In this embodiment, the cold gas source is a liquid nitrogen tank and a vaporizer. The top of the liquid nitrogen tank is connected to the end of the gas supply pipe 31 away from the device body 1. The vaporizer is installed on the gas supply pipe 31 and is used to vaporize the liquid nitrogen supplied from the liquid nitrogen tank into low-temperature nitrogen gas, which then enters the chamber of the device body 1 through the gas supply pipe 31.

[0034] Reference Figure 2 The cooling mechanism 3 also includes a gas equalization hood 32, which is bolted to the inside of the equipment body 1 and located at the center of the equipment body 1, and is vertically arranged. The top of the gas equalization hood 32 extends into the pulverizing chamber of the equipment body 1, and multiple gas equalization holes 321 are provided on its side wall so that the interior of the gas equalization hood 32 communicates with the pulverizing chamber inside the equipment body 1 through the gas equalization holes 321. One end of the gas supply pipe 31 is connected to the bottom of the gas equalization hood 32 to introduce nitrogen gas into the chamber of the gas equalization hood 32.

[0035] Reference Figure 2 The device body 1 has an opening at the top, and a funnel for feeding is fixedly installed at the top. The bottom of the funnel extends downward and is located directly above the gas equalization hood 32. In this embodiment, the top of the gas equalization hood 32 extends upward and is set in a hemispherical shape to disperse the rubber raw material introduced by the feeding funnel and reduce the probability of the rubber raw material entering the gas equalization hole 321.

[0036] Reference Figure 2The pulverizing disc 21 is fitted outside the gas equalization hood 32 and rotatably connected to the middle of the gas equalization hood 32. The top of the pulverizing disc 21 is located inside the pulverizing chamber of the equipment body 1 and is lower than the top of the gas equalization hood 32. In this embodiment, the rotating component 22 is configured as a combination structure of a geared motor and a belt drive. The geared motor is fixedly installed on the outside of the equipment body 1 and is used to drive one of its pulleys to rotate. The other pulley is fixedly fitted on the bottom of the pulverizing disc 21, so that the geared motor can drive both pulleys to rotate through the belt, thereby driving the rotation of the pulverizing disc 21.

[0037] Reference Figure 2 The top periphery of the crushing disc 21 is inclined upwards, and several crushing rollers 23 are arranged, each located directly above a different end of the crushing disc 21. One end of each crushing roller 23 is embedded in the inner wall of the equipment body 1, and the other end is inclined downwards to match the inclined portion of the crushing disc 21. Each crushing roller 23 is rotatably connected to the equipment body 1 via a bearing, so as to cut and crush the passing rubber when the crushing disc 21 rotates.

[0038] Reference Figure 1 and Figure 2 In this embodiment, the device body 1 also includes a discharge chamber, which is annular, and the crushing chamber within the device body 1 is located inside the discharge chamber. Multiple discharge holes are also provided on the inner wall of the inner chamber of the device body 1, allowing communication between the crushing chamber and the discharge chamber, so that the crushed rubber powder inside the crushing chamber can pass through the holes to the discharge chamber. A pipe is also provided at one end of the discharge chamber, with one end connected to the discharge chamber and the other end extending outwards to allow the rubber powder to pass through.

[0039] Reference Figure 2 and Figure 3 The equipment body 1 is also equipped with a pushing mechanism 4. The number of pushing mechanisms 4 is set to several and they are distributed at equal angles along the circumference of the air distribution hood 32. The pushing mechanism 4 is arranged one-to-one with the crushing roller 23, and each pushing mechanism 4 is located between two adjacent crushing rollers 23. Each pushing mechanism 4 includes a mounting frame 41, a pushing frame 42 and a sliding component 43. One end of each mounting frame 41 is fixedly connected to the outer wall of the air distribution hood 32, and the other end is fixedly connected to the inner wall of the crushing chamber.

[0040] Reference Figure 3 and Figure 4Each mounting bracket 41 has a drive groove 411 on its side wall. Each drive groove 411 is a closed annular groove, and the extension path of the closed annular groove is located on the corresponding side wall of the mounting bracket 41. The end of each drive groove 411 extends into the mounting bracket 41 at the top end near the mounting bracket 41, so that the opening depth of this part of the drive groove 411 is greater than the remaining depth of the top part. The part that connects the top and the bottom gradually extends outward to return to the same opening depth as the rest of the part.

[0041] Reference Figure 3 Each pusher 42 includes a sliding part 421, a lifting part 422 and an abutting part 423. Each sliding part 421 is slidably connected to the corresponding setting frame 41 through a sliding groove, and the sliding direction is set to the extension direction of the setting frame 41.

[0042] Reference Figure 3 Each lifting part 422 is slidably connected to the corresponding sliding part 421 via a sliding groove, and the sliding direction is set to the height direction of the sliding part 421. The pushing mechanism 4 also includes a driving member 44, which includes a return spring 441. In this embodiment, the return spring 441 is a tension spring, one end of which is fixedly connected to the top end of the sliding part 421, and the other end is fixedly connected to the top end of the lifting part 422, so that the lifting part 422 can be returned to the initial position by its own elastic force.

[0043] Reference Figure 3 and Figure 4 A drive rod 5 is also provided at one end of the lifting part 422. The drive rod 5 is a cylindrical rod. The drive rod 5 is located on the side of the lifting part 422 near the mounting frame 41, and one end is inserted into the lifting part 422 and slidably connected to the lifting part 422. The sliding direction is the opening direction of the drive groove 411. Each drive rod 5 is fitted with an elastic element 6, which is a pressure spring. One end of the pressure spring abuts against the drive rod 5, and the other end abuts against the lifting part 422.

[0044] Reference Figure 3 and Figure 4The end of the drive rod 5 away from the lifting part 422 extends into the drive groove 411 and abuts against the inner wall of the corresponding drive groove 411. This allows the drive rod 5 on the lifting part 422 to move up and down under the contact with the drive groove 411 during the sliding process of the sliding part 421. Thus, when the lifting part 422 is located at the end of the mounting frame 41 near the air distribution hood 32, it can gradually move downwards and maintain this downward movement away from the air distribution hood 32. Furthermore, when the lifting part 422 is located at the end of the mounting frame 41 near the air distribution hood 32, it can gradually move downwards and maintain this downward movement. When the frame 41 moves away from the end of the gas equalization hood 32, it can gradually move upward and maintain the upward state when moving towards the gas equalization hood until it moves to the end of the frame 41. This allows the drive rod 5 to move to a deeper part of the drive groove 411 under the elastic force of the elastic member 6. As a result, when the sliding part 421 moves away from the gas equalization hood 32 again, the drive rod 5 can move downward, so that the inner wall of the depth difference of the drive groove 411 can abut against the drive rod 5, preventing the drive rod 5 from moving back in the drive groove 411.

[0045] Reference Figure 2 and Figure 3 The abutment part 423 is slidably connected to the lifting part 422, and the sliding direction is horizontal. When the lifting part 422 is in the downward state, the bottom wall of the abutment part 423 abuts against the top wall of the crushing disc 21 to push the rubber remaining on the top wall of the crushing disc 21. The side wall of the abutment part 423 abuts against the side wall of the mounting frame 41 to ensure the pushing effect on the rubber.

[0046] Reference Figure 3 The sliding part 421 is also provided with a linkage 45, which includes a linkage frame 451. One end of the linkage frame 451 is rotatably connected to the top of the sliding part 421 by a pin, and the other end of the linkage frame 451 is inclined downward and rotatably connected to the abutment part 423 by a pin.

[0047] Reference Figure 2 , Figure 3 and Figure 4 In the initial state, when the sliding part 421 is located at the end of the mounting frame 41 near the gas equalization hood 32, the lifting part 422 is at the bottom of its own displacement path. At this time, the bottom wall of the abutment part 423 abuts against the top wall of the crushing disc 21, and the side wall of the abutment part 423 abuts against the side wall of the mounting frame 41. When the sliding part 421 moves towards the end of the mounting frame 41 away from the gas equalization hood 32, the drive groove 411 and the top of the drive rod 5 continue to abut against each other, so that both the lifting part 422 and the abutment part 423 maintain their own positions.

[0048] Reference Figure 2 , Figure 3 and Figure 4When the sliding part 421 moves to the end of the mounting frame 41 away from the air distribution cover 32, the drive groove 411 releases the restriction on the top of the drive rod 5, so that the lifting part 422 can be gradually pulled upward under the elastic force of the return spring 441, thereby displacing upward along the drive groove 411. During this process, the sliding part 421 drives the linkage frame 451 to rotate relative to the sliding part 421, so that the linkage frame 451 drives the abutment part 423 to slide relative to the lifting part 422, and the end side wall of the abutment part 423 gradually moves away from the mounting frame 41, so that the rubber powder or fine rubber between the abutment part 423 and the mounting frame 41 can automatically move away from the abutment part 423 under its own weight or the drive of the cold air vented by the air distribution cover 32, thereby realizing the self-cleaning of the abutment part 423.

[0049] Reference Figure 2 , Figure 3 and Figure 4 Subsequently, when the sliding part 421 moves to the end near the gas cover, the drive rod 5, under the elastic force of the elastic member 6, is inserted into the part of the drive groove 411 where the depth changes, thereby causing the inner wall of the drive groove 411 to obstruct the retraction of the drive rod 5. Afterward, the drive groove 411 again restricts the top of the drive rod 5, allowing the lifting part 422 to gradually move down and return to its initial height, so that the abutting part 423, driven by the linkage frame 451, abuts against the side wall of the mounting frame 41 again.

[0050] Referring to the figures, each sliding assembly 43 includes a crank frame 431, a transmission frame 432, and a rotating component 433. In this embodiment, the rotating component 433 is configured as a geared motor, which is fixedly installed on the outer side wall of the equipment body 1, and its output shaft is connected to a rotating shaft 434 via a coupling. The rotating shaft 434 is rotatably connected to the equipment body 1 via a bearing, and one end extends into the crushing chamber, where a bevel gear 435 is fixedly fitted.

[0051] Referring to the figure, one end of the crank frame 431 is rotatably connected to the corresponding mounting frame 41 via a pin, and a bevel gear 435 is also fixedly mounted on this end of the crank frame 431. The bevel gear 435 on the crank frame 431 meshes with the bevel gear 435 on the corresponding rotating shaft 434 to drive the rotation of the crank frame 431.

[0052] Referring to the figures, the other end of each crank arm 431 is rotatably connected to one end of the transmission frame 432 via a pin, and the other end of each transmission frame 432 is rotatably connected to the corresponding sliding part 421 via a pin, thereby driving the sliding part 421. In this embodiment, the length of each crank arm 431 is less than the length of the transmission frame 432, so that the crank arm 431, the transmission frame 432, and the sliding part 421 constitute a crank-slider mechanism, realizing the reciprocating sliding of the sliding part 421.

[0053] The implementation principle of a rubber powder production device for composite modified asphalt according to an embodiment of this application is as follows: When the crushing disc 21 rotates, the rotating component 433 drives the crank frame 431 to rotate, thereby causing the crank frame 431 to drive the transmission frame 432 to reciprocate, which in turn causes the transmission frame 432 to drive the corresponding sliding part 421 to reciprocate. During this process, when the sliding part 421 moves towards the end of the mounting frame 41 away from the gas equalization hood 32, the driving groove 411 and the top of the driving rod 5 continuously abut against each other, thereby keeping both the lifting part 422 and the abutting part 423 in their own positions.

[0054] When the sliding part 421 moves to the end of the mounting frame 41 away from the air distribution cover 32, the drive groove 411 releases the restriction on the top of the drive rod 5, so that the lifting part 422 can be gradually pulled upward under the elastic force of the return spring 441, thereby displacing upward along the drive groove 411. During this process, the sliding part 421 drives the linkage frame 451 to rotate relative to the sliding part 421, so that the linkage frame 451 drives the abutment part 423 to slide relative to the lifting part 422, and the end side wall of the abutment part 423 gradually moves away from the mounting frame 41, so that the rubber powder or fine rubber between the abutment part 423 and the mounting frame 41 can automatically move away from the abutment part 423 under its own weight or the driving force of the cold air vented by the air distribution cover 32, thereby realizing the self-cleaning of the abutment part 423.

[0055] Subsequently, when the sliding part 421 moves to the end near the gas cover, the drive rod 5, under the elastic force of the elastic member 6, is inserted into the part of the drive groove 411 where the depth changes, thereby causing the inner wall of the drive groove 411 to obstruct the reversal movement of the drive rod 5. Afterward, the drive groove 411 again restricts the top of the drive rod 5, allowing the lifting part 422 to gradually move down and return to its initial height, so that the abutting part 423, driven by the linkage frame 451, abuts against the side wall of the mounting frame 41 again.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rubber powder production device for composite modified asphalt, comprising a device body (1) and a crushing mechanism (2), characterized in that: The crushing mechanism (2) includes a crushing disc (21), a rotating component (22), and a crushing roller (23). The crushing disc (21) and the crushing roller (23) are both located in the cavity of the equipment body (1) and are rotatably connected to the equipment body (1). The rotating component (22) is used to drive the crushing disc (21) to rotate. The crushing roller (23) is located above the end of the crushing disc (21). The equipment body (1) is also provided with a cooling mechanism (3). The cooling mechanism (3) includes an air supply pipe (31). One end of the air supply pipe (31) is used to connect to a cold air source. The other end of the air supply pipe (31) is connected to the cavity of the equipment body (1) so that the cold air introduced can reduce the temperature of the surface of the crushing roller (23).

2. The rubber powder production equipment for composite modified asphalt according to claim 1, characterized in that: The number of the crushing rollers (23) is set to several, and they are located on different sides of the crushing disc (21). The cooling mechanism (3) also includes a gas equalization hood (32). The gas equalization hood (32) is located at the center of the crushing disc (21) and is connected to the equipment body (1). The bottom of the gas equalization hood (32) is connected to the air supply pipe (31). Several gas equalization holes (321) are opened on the side wall of the gas equalization hood (32).

3. The rubber powder production equipment for composite modified asphalt according to claim 2, characterized in that: The device body (1) is also provided with a pushing mechanism (4). The pushing mechanism (4) includes a setting frame (41), a pushing frame (42), and a sliding component (43). One end of the setting frame (41) is connected to the inner wall of the device body (1), and the other end is connected to the gas equalization hood (32). The pushing frame (42) is slidably connected to the setting frame (41), and the sliding direction is the extension direction of the setting frame (41). The sliding component (43) is used to drive the pushing frame (42) to slide. The bottom of the pushing frame (42) abuts against the top of the crushing disc (21).

4. The rubber powder production equipment for composite modified asphalt according to claim 3, characterized in that: The pusher (42) includes a sliding part (421) and a lifting part (422). The sliding part (421) is slidably connected to the setting frame (41), and the lifting part (422) is slidably connected to the sliding part (421). The sliding direction is the height direction of the sliding part (421). The pusher mechanism (4) also includes a drive member (44). The drive member (44) is used to drive the sliding part (421) to slide upward when it is away from the material equalization cover, thereby disengaging from the top wall of the crushing disc (21), and to drive it to slide downward when it is close to the material equalization cover, thereby abutting against the top wall of the crushing disc (21).

5. The rubber powder production equipment for composite modified asphalt according to claim 4, characterized in that: The pusher (42) also includes an abutment part (423), which is slidably connected to the lifting part (422) and the sliding direction is horizontal. The abutment part (423) abuts against the top wall of the crushing disc (21). The sliding part (421) is also provided with a linkage (45). The lifting part (422) drives the abutment part (423) to slide when it slides through the linkage (45).

6. The rubber powder production equipment for composite modified asphalt according to claim 5, characterized in that: The linkage component (45) includes a linkage frame (451), one end of which is rotatably connected to the sliding part (421), and the other end is inclined downward and rotatably connected to the abutment part (423).

7. The rubber powder production equipment for composite modified asphalt according to claim 4, characterized in that: The side wall of the mounting frame (41) is provided with a drive groove (411), which is annular. One end of the lifting part (422) extends into the drive groove (411) and abuts against the inner wall of the drive groove (411). The driving member (44) includes a return spring (441), which is used to allow the lifting part (422) to slide upward to the top of its sliding path by its own elastic force.

8. The rubber powder production equipment for composite modified asphalt according to claim 3, characterized in that: The sliding assembly (43) includes a crank frame (431), a transmission frame (432), and a rotating component (433). One end of the crank frame (431) is rotatably connected to the mounting frame (41), and the rotating component (433) is used to drive the crank frame (431) to rotate. One end of the transmission frame (432) is rotatably connected to the end of the crank frame (431) away from the mounting frame (41), and the other end is rotatably connected to the pusher frame (42).

9. The rubber powder production equipment for composite modified asphalt according to claim 8, characterized in that: The length of the crank frame (431) is less than the length of the transmission frame (432).

10. The rubber powder production equipment for composite modified asphalt according to claim 3, characterized in that: The number of the feeding mechanism (4) is set to several, and they are all located between several of the crushing rollers (23).

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