A highly efficient heating device for in-situ hot regeneration of asphalt pavement

Abstract

The present invention relates to the technical field of road engineering, and discloses a highly efficient heating device for in-situ hot regeneration of asphalt pavement, including a mobile platform assembly, wherein the mobile platform assembly includes a support frame, a mounting seat is fixedly installed at the bottom of the support frame, a limiting roller is fixedly installed inside the mounting seat, and a track is sleeved on the outer surface of the limiting roller. The present invention can loosen the asphalt in multiple directions and in all directions by rotating the first loosening rod and the second loosening rod in opposite directions respectively driven by the main mounting roller and the auxiliary mounting roller, thereby improving the loosening efficiency and effect. Compared with the loosening method in a single direction, the asphalt can be better mixed with additives, providing a more uniform material base for subsequent regeneration processing, and utilizing the interaction between the first force gear, the driving gear, the auxiliary gear, the second force gear and other gears, so that the main loosening assembly and the auxiliary loosening assembly have higher stability and reliability.

Description

Technical Field

[0001] The invention relates to the technical field of road engineering, and in particular to a high-efficiency heating device for in-situ thermal regeneration of asphalt pavement. Background Art

[0002] With the development of highway traffic, in modern society, the development of highway traffic is changing with each passing day, the mileage of highways is increasing, and the traffic volume is also increasing. With the frequent driving of vehicles, various diseases will appear on the asphalt pavement, such as cracks, potholes, ruts, etc. In order to ensure the performance and life of the road, the asphalt pavement needs to be regularly maintained and repaired;

[0003] Among them, the "A heating device and method for recycling asphalt pavement materials" disclosed in the publication number "CN107805995B" has solved the problem that the exhaust gas of the existing heating equipment is directly discharged into the front end of the dust removal system of the asphalt mixing equipment without incineration, and is discharged into the atmosphere after simple filtration. This method not only pollutes the environment, but also immediately causes the bag of the dust collector to be blocked. However, in actual use, high-efficiency heating equipment with similar structures still has many defects, such as: the existing high-efficiency heating equipment may have serious heat loss, uneven heating and other problems, and the previous loosening equipment may have uneven loosening, limited loosening depth and range. Some equipment only has a single-direction loosening tool and cannot loosen the asphalt pavement in all directions, resulting in uneven mixing when adding new asphalt and aggregate, affecting the quality of the repaired pavement. Therefore, it is necessary to design a high-efficiency heating equipment for in-situ hot regeneration of asphalt pavement. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the present invention provides a high-efficiency heating device for in-situ thermal regeneration of asphalt pavement.

[0005] The present invention is implemented by the following technical scheme: a high-efficiency heating device for in-situ hot regeneration of asphalt pavement, comprising a mobile platform assembly, the mobile platform assembly comprising a support frame, a mounting seat is fixedly installed at the bottom of the support frame, a limiting roller is fixedly installed inside the mounting seat, a crawler is sleeved on the outer surface of the limiting roller, an operating handle is fixedly installed on the top of the support frame, a protective box is fixedly installed at the central position of the top of the support frame, and further comprises:

[0006] A heating component, the heating component comprising a connecting seat fixedly mounted on the top of the support frame, a control module fixedly mounted on one side of the connecting seat, and a heating tube fixedly mounted on the bottom of the control module;

[0007] A main loosening assembly, the main loosening assembly comprising a mounting frame fixedly mounted inside the protective box, a first connecting roller rotatably mounted inside the mounting frame, and a driving gear fixedly mounted on the outer surface of the first connecting roller;

[0008] The auxiliary loosening assembly comprises a connecting plate fixedly mounted on the inner wall of the supporting frame, an auxiliary gear is arranged inside the connecting plate, an auxiliary mounting roller is arranged at the bottom of the auxiliary gear, and a second force-bearing gear meshing with the auxiliary gear is fixedly mounted on the outer surface of the auxiliary mounting roller.

[0009] As a further improvement of the above solution, a connecting seat is fixedly installed on the top of the support frame, a control module is installed on the top of the connecting seat, a heating pipe is fixedly installed on the bottom of the control module, and a heat collecting hood fixedly installed on the bottom of the control module is provided at the bottom of the heating pipe.

[0010] Through the above technical solution, the control module on the connecting seat can accurately control the operation of the heating pipe, which makes it possible to accurately adjust the heating process according to the actual needs of the asphalt pavement. For example, when heating the asphalt pavement, the heating power and time are adjusted due to factors such as different asphalt compositions and pavement thicknesses. The heat collecting hood can effectively collect the heat generated by the heating pipe and reduce the loss of heat to the surrounding environment, thereby improving the heating efficiency.

[0011] As a further improvement of the above solution, a limit plate is fixedly mounted on the outer surface of the mounting frame, a first connecting roller is rotatably mounted inside the limit plate, and a driving gear is fixedly mounted on the outer surface of the first connecting roller.

[0012] Through the above technical solution, when the equipment is running, the first connecting roller rotates stably under the constraint of the limit plate, ensuring the stable operation of related components such as the driving gear, thereby ensuring the normal operation of the entire main loosening assembly and reducing the risk of failure caused by shaking or offset of components.

[0013] As a further improvement of the above scheme, a main mounting roller is rotatably mounted on the inner wall of the support frame, a first mounting sleeve is fixedly mounted on the outer surface of the main mounting roller, a plurality of first loosening rods are fixedly mounted on the outer surface of the first mounting sleeve, and a first force-bearing gear is fixedly mounted on the outer surface of the main mounting roller.

[0014] Through the above technical solution, multiple first loosening rods can act on the road surface at the same time, increasing the coverage area and efficiency of loosening, and the first force gear on the main mounting roller can cooperate with other gears to realize power transmission and ensure the coordination of the loosening operation with other actions of the equipment.

[0015] As a further improvement of the above scheme, a second connecting roller is rotatably mounted on the inner wall of the connecting plate, an auxiliary gear is fixedly mounted on the outer surface of the second connecting roller, and an auxiliary mounting roller rotatably mounted on the inner wall of the support frame is provided at the bottom of the auxiliary gear.

[0016] Through the above technical solution, the second connecting roller is rotatably installed on the inner wall of the connecting disk, and the auxiliary gear is fixedly installed on the outer surface of the second connecting roller, so that the auxiliary gear can be stably installed in the equipment and provides a stable foundation for the subsequent meshing transmission with other gears. The auxiliary installation roller is rotatably installed on the inner wall of the support frame and is associated with the auxiliary gear, which ensures the integrity and stability of the entire auxiliary loosening assembly structure and is conducive to realizing efficient auxiliary loosening function.

[0017] As a further improvement of the above solution, a second force-bearing gear is fixedly mounted on the outer surface of the auxiliary mounting roller, the second force-bearing gear is meshed with the auxiliary gear, and the auxiliary gear is meshed with the driving gear.

[0018] Through the above technical solution, the auxiliary gear is meshed with the driving gear, and at the same time, the auxiliary gear is meshed with the second force gear. This gear meshing relationship enables the main loosening assembly and the auxiliary loosening assembly to work together. The power of the main loosening assembly can be transmitted to the auxiliary loosening assembly through gear transmission, so that the two can be synchronized and coordinated during the loosening process, thereby improving the overall effect of loosening the asphalt pavement and making the loosening of the pavement more uniform and thorough.

[0019] As a further improvement of the above solution, a second mounting sleeve is fixedly mounted on the outer surface of the auxiliary mounting roller, and a second loosening rod is fixedly mounted on the outer surface of the second mounting sleeve.

[0020] Through the above technical solution, due to the presence of the first loosening rod and the second loosening rod, they loosen the asphalt pavement from different angles and directions, making the loosening effect more comprehensive, and can better break the original structure of the asphalt pavement, providing better conditions for subsequent regeneration treatment.

[0021] As a further improvement of the above solution, a rolling assembly is fixedly mounted on the inner wall of the support frame, and the rolling assembly includes a mounting plate, and a rolling roller is rotatably mounted inside the mounting plate.

[0022] Through the above technical solution, after the asphalt pavement is heated and loosened, the rolling roller can compact the pavement, which helps the loosened asphalt pavement to regain the required flatness and density, improve the quality and bearing capacity of the pavement, extend the service life of the pavement, and ensure that the pavement after in-situ hot regeneration treatment can meet the requirements of traffic use.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention can loosen asphalt in multiple directions and in all directions by rotating the first loosening rod and the second loosening rod in the main loosening assembly and the auxiliary loosening assembly in opposite directions respectively under the drive of the main mounting roller and the auxiliary mounting roller, thereby improving the loosening efficiency and effect. Compared with the loosening method in a single direction, it can more thoroughly break the original structure of the asphalt pavement, so that the asphalt material can be better mixed, and a more uniform material basis can be provided for subsequent regeneration treatment. In addition, the interaction between gears such as the first stressed gear, the driving gear, the auxiliary gear and the second stressed gear is utilized to ensure high stability and reliability, thereby ensuring the continuous and stable progress of the loosening process. The close fit between the various components makes it less likely to loosen or become disconnected, thereby reducing the possibility of equipment failure and ensuring the smooth progress of the loosening work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the internal structure of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the bottom of the overall structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the main loosening assembly of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the auxiliary loosening assembly of the present invention;

[0030] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure in the middle.

[0031] Description of main symbols:

[0032] 1. Mobile platform assembly; 101. Support frame; 102. Mounting seat; 103. Limiting roller; 104. Track; 105. Operating handle; 106. Protective box; 2. Heating assembly; 201. Connecting seat; 202. Control module; 203. Heating tube; 204. Heat collecting cover; 3. Main loosening assembly; 301. Mounting frame; 302. Limiting plate; 303. First connecting roller; 304. Driving gear; 305. Main mounting roller; 306. First mounting sleeve; 307. First loosening rod; 308. First force-bearing gear; 4. Auxiliary loosening assembly; 401. Connecting plate; 402. Second connecting roller; 403. Auxiliary gear; 404. Auxiliary mounting roller; 405. Second force-bearing gear; 406. Second mounting sleeve; 407. Second loosening rod; 5. Rolling assembly; 501. Mounting plate; 502. Rolling roller. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0034] Example:

[0035] Please combine Figure 1-6 The present embodiment is a high-efficiency heating device for in-situ hot regeneration of asphalt pavement, comprising a mobile platform assembly 1, the mobile platform assembly 1 comprising a support frame 101, a mounting seat 102 is fixedly mounted at the bottom of the support frame 101, a limiting roller 103 is fixedly mounted inside the mounting seat 102, a crawler 104 is sleeved on the outer surface of the limiting roller 103, an operating handle 105 is fixedly mounted on the top of the support frame 101, a protective box 106 is fixedly mounted at the central position of the top of the support frame 101, and further comprising:

[0036] The heating component 2 includes a connection base 201 fixedly mounted on the top of the support frame 101, a control module 202 is fixedly mounted on one side of the connection base 201, and a heating tube 203 is fixedly mounted on the bottom of the control module 202;

[0037] The main loosening assembly 3 includes a mounting frame 301 fixedly mounted inside the protection box 106, a first connecting roller 303 is rotatably mounted inside the mounting frame 301, and a driving gear 304 is fixedly mounted on the outer surface of the first connecting roller 303;

[0038] The auxiliary loosening assembly 4 includes a connecting plate 401 fixedly mounted on the inner wall of the support frame 101, an auxiliary gear 403 is arranged inside the connecting plate 401, an auxiliary mounting roller 404 is arranged at the bottom of the auxiliary gear 403, and a second force-bearing gear 405 meshing with the auxiliary gear 403 is fixedly mounted on the outer surface of the auxiliary mounting roller 404.

[0039] A connecting seat 201 is fixedly installed on the top of the support frame 101, a control module 202 is fixedly installed on the top of the connecting seat 201, a heating pipe 203 is fixedly installed on the bottom of the control module 202, and a heat collecting cover 204 fixedly installed on the bottom of the control module 202 is arranged at the bottom of the heating pipe 203.

[0040] After the control module 202 is connected to the power supply, the operator adjusts the control switch to realize the conduction or disconnection of the heating tube 203 circuit, and uses the power supply module inside the control module 202 to process and convert the input electrical energy to provide the required voltage and current for the heating tube 203. Since the heating tube 203 contains a resistance wire, when the current passes through the resistance wire, the existence of the resistance will produce a Joule heating effect, causing the temperature of the heating tube 203 to increase. The main function of the heat collecting cover 204 is to collect the heat generated by the heating tube 203. It can effectively reduce the loss of heat to the surrounding environment, so that the heat acts more concentratedly on the asphalt pavement, thereby significantly improving the heating efficiency of the asphalt pavement and laying a good foundation for the subsequent on-site thermal regeneration treatment of the asphalt pavement.

[0041] A limiting plate 302 is fixedly mounted on the outer surface of the mounting frame 301 , a first connecting roller 303 is rotatably mounted inside the limiting plate 302 , and a driving gear 304 is fixedly mounted on the outer surface of the first connecting roller 303 .

[0042] A main mounting roller 305 is rotatably mounted on the inner wall of the support frame 101 , a first mounting sleeve 306 is fixedly mounted on the outer surface of the main mounting roller 305 , a plurality of first loosening rods 307 are fixedly mounted on the outer surface of the first mounting sleeve 306 , and a first force-bearing gear 308 is fixedly mounted on the outer surface of the main mounting roller 305 .

[0043] As the operator drives the mobile platform assembly 1 to move by operating the handle 105, since the main mounting roller 305 is rotatably installed on the inner wall of the support frame 101, as the mobile platform assembly 1 moves forward, the main mounting roller 305 rotates, and the asphalt is loosened by the first loosening rod 307 on the surface of the first mounting sleeve 306. At the same time, since the outer surface of the main mounting roller 305 is provided with a first force gear 308, and the first force gear 308 is meshed with the driving gear 304, when the mobile platform assembly 1 moves forward, the main mounting roller 305 rotates counterclockwise, driving the main mounting roller 305 to rotate counterclockwise.

[0044] A second connecting roller 402 is rotatably mounted on the inner wall of the connecting disk 401 , an auxiliary gear 403 is fixedly mounted on the outer surface of the second connecting roller 402 , and an auxiliary mounting roller 404 rotatably mounted on the inner wall of the supporting frame 101 is provided at the bottom of the auxiliary gear 403 .

[0045] A second force-bearing gear 405 is fixedly mounted on the outer surface of the auxiliary mounting roller 404 . The second force-bearing gear 405 is meshed with the auxiliary gear 403 , and the auxiliary gear 403 is meshed with the driving gear 304 .

[0046] A second mounting sleeve 406 is fixedly mounted on the outer surface of the auxiliary mounting roller 404 , and a second loosening rod 407 is fixedly mounted on the outer surface of the second mounting sleeve 406 .

[0047] Since it is meshed with the driving gear 304, it can drive the driving gear 304 to rotate clockwise, ensuring that the first connecting roller 303 rotates in the mounting frame 301. When the first connecting roller 303 rotates, the limiting plate 302 can limit it, and since the side of the driving gear 304 away from the first force gear 308 is meshed with the auxiliary gear 403, it can drive the auxiliary gear 403 to rotate clockwise, ensuring that the second connecting roller 402 rotates clockwise in the connecting disk 401.

[0048] A rolling assembly 5 is fixedly mounted on the inner wall of the support frame 101 . The rolling assembly 5 includes a mounting plate 501 . A rolling roller 502 is rotatably mounted inside the mounting plate 501 .

[0049] The rolling assembly 5 is used to roll the asphalt pavement after loosening and possible recycling. The mounting plate 501 is fixed to the inner wall of the support frame 101. The rolling roller 502 rotatably mounted inside the mounting plate rolls the pavement during the operation of the equipment, so that the loosened asphalt pavement is re-compacted to achieve certain flatness and density requirements.

[0050] The implementation principle of a high-efficiency heating device for in-situ heat regeneration of asphalt pavement in the embodiment of the present application is as follows: the mobile platform assembly 1 provides the entire device with mobility, the support frame 101 is the support structure of the entire device, a limiting roller 103 is rotatably installed in the mounting seat 102 at the bottom thereof, and the crawler 104 is sleeved on the outer surface of the limiting roller 103. When the device needs to move, the crawler 104 rotates under the drive of the limiting roller 103 driven by external traction, so that the entire device can move on the asphalt pavement, and the operator can control the moving direction and start and stop operations of the device by operating the handle 105;

[0051] The heating assembly 2 is used to heat the asphalt pavement. The connecting seat 201 is fixedly installed on the top of the support frame 101. The control module 202 on one side plays a role of control and regulation. The control module 202 is composed of a control switch and a power module. After the control module 202 is connected to the power supply, the operator adjusts the control switch to realize the conduction or disconnection of the heating tube 203 circuit. The power module inside the control module 202 is used to process and convert the input electric energy to provide the required voltage and current for the heating tube 203. Since the heating tube 203 contains a resistance wire, when the current passes through the resistance wire, the Joule heating effect is generated due to the existence of the resistance, so that the temperature of the heating tube 203 increases. The main function of the heat collecting cover 204 is to collect the heat generated by the heating tube 203. It can effectively reduce the loss of heat to the surrounding environment, so that the heat acts more concentratedly on the asphalt pavement, thereby significantly improving the heating efficiency of the asphalt pavement and laying a good foundation for the subsequent in-situ heat regeneration treatment of the asphalt pavement.

[0052] After the heating component 2 completes heating the road surface, as the operator drives the mobile platform component 1 to move by operating the handle 105, since the main installation roller 305 is rotatably installed on the inner wall of the support frame 101, as the mobile platform component 1 moves forward, the main installation roller 305 rotates, and the asphalt is loosened by the first loosening rod 307 on the surface of the first installation sleeve 306. At the same time, since the outer surface of the main installation roller 305 is provided with a first force gear 308, and the first force gear 308 is meshed with the driving gear 304, when the mobile platform component 1 moves forward, the main installation roller 305 rotates counterclockwise, driving the main installation roller 305 to rotate counterclockwise;

[0053] Since it is meshed with the driving gear 304, it can drive the driving gear 304 to rotate clockwise, ensuring that the first connecting roller 303 rotates in the mounting frame 301. When the first connecting roller 303 rotates, the limiting plate 302 can limit it, and since the side of the driving gear 304 away from the first force-bearing gear 308 is meshed with the auxiliary gear 403, it can drive the auxiliary gear 403 to rotate clockwise, ensuring that the second connecting roller 402 rotates clockwise in the connecting disk 401.

[0054] At this time, since the auxiliary gear 403 is meshed with the second force-bearing gear 405, the auxiliary mounting roller 404 can be driven to rotate clockwise in the support frame 101. At this time, the second loosening rod 407 on the surface of the second mounting sleeve 406 and the first loosening rod 307 on the surface of the first mounting sleeve 306 are rotating in opposite directions. The rotation in opposite directions can loosen the asphalt more effectively. When the main loosening assembly 3 and the auxiliary loosening assembly 4 are loosening, the protective box 106 can be used to prevent asphalt from splashing out due to the rotation of the asphalt during the loosening process, thereby protecting the surrounding environment and the safety of the operators.

[0055] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A high-efficiency heating device for in-situ hot regeneration of asphalt pavement, comprising a mobile platform assembly (1), wherein the mobile platform assembly (1) comprises a support frame (101), a mounting seat (102) is fixedly mounted at the bottom of the support frame (101), a limiting roller (103) is fixedly mounted inside the mounting seat (102), a crawler (104) is sleeved on the outer surface of the limiting roller (103), an operating handle (105) is fixedly mounted on the top of the support frame (101), and a protective box (106) is fixedly mounted at the central position of the top of the support frame (101), characterized in that: Also includes: A heating component (2), the heating component (2) comprising a connection seat (201) fixedly mounted on the top of the support frame (101), a control module (202) fixedly mounted on one side of the connection seat (201), and a heating tube (203) fixedly mounted on the bottom of the control module (202); A main loosening assembly (3), the main loosening assembly (3) comprising a mounting frame (301) fixedly mounted inside the protection box (106), a first connecting roller (303) rotatably mounted inside the mounting frame (301), and a driving gear (304) fixedly mounted on the outer surface of the first connecting roller (303); The auxiliary loosening assembly (4) comprises a connecting plate (401) fixedly mounted on the inner wall of a support frame (101), an auxiliary gear (403) being arranged inside the connecting plate (401), an auxiliary mounting roller (404) being arranged at the bottom of the auxiliary gear (403), and a second force-bearing gear (405) meshing with the auxiliary gear (403) being fixedly mounted on the outer surface of the auxiliary mounting roller (404).

2. A high-efficiency heating device for in-situ thermal regeneration of asphalt pavement according to claim 1, characterized in that: A connecting seat (201) is fixedly mounted on the top of the support frame (101); a control module (202) is mounted on the top of the connecting seat (201); a heating pipe (203) is fixedly mounted on the bottom of the control module (202); and a heat collecting cover (204) is provided at the bottom of the heating pipe (203) and is fixedly mounted on the bottom of the control module (202).

3. A high-efficiency heating device for in-situ thermal regeneration of asphalt pavement according to claim 1, characterized in that: A limit plate (302) is fixedly mounted on the outer surface of the mounting frame (301), a first connecting roller (303) is rotatably mounted inside the limit plate (302), and a driving gear (304) is fixedly mounted on the outer surface of the first connecting roller (303).

4. A high-efficiency heating device for in-situ thermal regeneration of asphalt pavement according to claim 1, characterized in that: A main mounting roller (305) is rotatably mounted on the inner wall of the support frame (101); a first mounting sleeve (306) is fixedly mounted on the outer surface of the main mounting roller (305); a plurality of first loosening rods (307) are fixedly mounted on the outer surface of the first mounting sleeve (306); and a first force-bearing gear (308) is fixedly mounted on the outer surface of the main mounting roller (305).

5. The high-efficiency heating device for in-situ thermal regeneration of asphalt pavement according to claim 1, characterized in that: A second connecting roller (402) is rotatably mounted on the inner wall of the connecting plate (401), an auxiliary gear (403) is fixedly mounted on the outer surface of the second connecting roller (402), and an auxiliary mounting roller (404) rotatably mounted on the inner wall of the supporting frame (101) is provided at the bottom of the auxiliary gear (403).

6. A high-efficiency heating device for in-situ thermal regeneration of asphalt pavement according to claim 5, characterized in that: A second force-bearing gear (405) is fixedly mounted on the outer surface of the auxiliary mounting roller (404); the second force-bearing gear (405) is meshed with the auxiliary gear (403); and the auxiliary gear (403) is meshed with the driving gear (304).

7. A high-efficiency heating device for in-situ thermal regeneration of asphalt pavement as claimed in claim 5, characterized in that: A second mounting sleeve (406) is fixedly mounted on the outer surface of the auxiliary mounting roller (404), and a second loosening rod (407) is fixedly mounted on the outer surface of the second mounting sleeve (406).

8. The high-efficiency heating device for in-situ thermal regeneration of asphalt pavement according to claim 1, characterized in that: A rolling assembly (5) is fixedly mounted on the inner wall of the support frame (101), and the rolling assembly (5) comprises a mounting plate (501), and a rolling roller (502) is rotatably mounted inside the mounting plate (501).

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