Asphalt pavement pit slot repairing machine
By using air induced exhaust and exhaust devices and temperature detection devices in the asphalt pavement pit repair machine, the problems of low heating efficiency and difficult to control the discharge temperature of existing equipment are solved, and more uniform heating and higher repair quality are achieved.
Patent Information
- Application Number
- CN202421118896.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-22
AI Technical Summary
During the heating and stirring process of existing asphalt pavement repair equipment, the heating efficiency is low and the discharge temperature of the asphalt mixture cannot be accurately controlled, affecting the repair quality.
A asphalt pavement pit and groove repair machine is designed, and the air induced exhaust device is used to actively discharge combustion exhaust and dust exhaust gas to improve the flow of hot air inside the heating chamber and the stirring drum; at the same time, a temperature detection device is used for real-time remote temperature detection to ensure the output The material temperature is within the required range.
It effectively improves the heating efficiency, makes the heating of each area of the stirring drum more uniformly, can accurately control the discharge temperature of the asphalt mixture, and improves the repair quality of the asphalt pavement.
Smart Images
Figure CN222525132U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of highway maintenance equipment, in particular to an asphalt pavement pothole repairing machine which can improve heating efficiency and accurately control the discharge temperature of asphalt mixture. Background Art
[0002] Asphalt roads age and cracks or potholes appear over time, which requires timely and effective repairs. The asphalt pavement repair process involves excavating and milling existing cracks or potholes into square grooves manually or mechanically, then laying newly mixed asphalt mixture in the cut potholes, and then compacting the asphalt mixture in the potholes with compaction equipment. At present, asphalt mixture is mainly heated and stirred by a drum and a burner. Sand and gravel are mixed with new asphalt or tailings from an asphalt mixing station or old milled asphalt pavement materials according to a proportion and put into a drum for stirring. At the same time, the drum is heated by a burner. During the heating and stirring process, dust and tail gas generated by the heating and stirring of the asphalt mixture inside the drum (dust, water vapor, etc. generated by the asphalt mixture during the heating and stirring process) are easily accumulated in the drum, and the combustion tail gas generated by the burner on the outer wall of the drum is also discharged relatively slowly, which easily leads to uneven heating of various areas of the drum, resulting in reduced heating efficiency. In addition, when repairing asphalt pavement, the discharge temperature of the asphalt mixture for repair must be controlled within a certain range to meet the repair quality requirements of the asphalt pavement. However, the existing drum and burner do not detect the temperature of the asphalt mixture in the drum in real time during the heating and stirring process. When the mixed asphalt mixture is discharged, its mixture temperature cannot be accurately controlled within the discharge temperature requirement range, which easily reduces the repair quality of the asphalt pavement. Therefore, it is necessary to develop an asphalt pavement pothole repairing machine that can effectively improve the heating efficiency and accurately control the discharge temperature of the asphalt mixture in order to overcome the above problems. Utility Model Content
[0003] In view of the above problems existing in the prior art, the technical problem to be solved by the utility model is to provide an asphalt pavement pothole repairing machine, which can effectively improve the heating efficiency and accurately control the discharge temperature of the asphalt mixture during the process of heating and stirring the asphalt mixture.
[0004] The technical solution of the utility model is as follows: an asphalt pavement pothole repair machine, comprising a trailer frame, a control cabinet for controlling the operation of the whole machine and a generator for providing power for the operation of the whole machine are provided at the front end of the top of the trailer frame, the generator is electrically connected to the control cabinet, a heating and stirring device for accommodating heated and stirred asphalt mixture is provided at the top of the trailer frame, an induced draft exhaust device is provided at the upper right side of the heating and stirring device, the induced draft exhaust device covers the smoke exhaust port and the upper half of the inlet and outlet ports on the right side of the heating and stirring device, and actively discharges the combustion exhaust and dust exhaust generated by the heating and stirring device during the heating and stirring process; a temperature detection device is provided at the lower right side of the induced draft exhaust device, the temperature detection device is provided with at least one remote temperature sensing probe, each remote temperature sensing probe is electrically connected to the control cabinet, the sensing end of each remote temperature sensing probe points to the lower right end of the interior of the heating and stirring device, and during the heating and stirring process, real-time remote temperature detection is performed on the asphalt mixture in the heating and stirring device.
[0005] The gravel and new asphalt material or the tailings of the asphalt mixing station or the old milling material of the asphalt pavement are loaded into the mixing drum from the inlet and outlet, and then the mixing motor is started to drive the mixing drum to rotate, and the asphalt mixture in the mixing drum is stirred, and at the same time, the burner is started to heat the outer wall of the mixing drum quickly and at high temperature; during the heating and stirring process, the exhaust device actively discharges the combustion exhaust gas from the exhaust port and the dust exhaust gas generated by the heating and stirring of the asphalt mixture in the mixing drum, which is conducive to the flow of hot air in the heating chamber and the mixing drum, so that the heating of each area of the mixing drum is more uniform, and the heating efficiency can be effectively improved; at the same time, the temperature detection device performs real-time remote temperature detection of the asphalt mixture in the area A inside the mixing drum. After 8-10 minutes of heating and stirring, the asphalt mixture in the mixing drum is stirred and mixed uniformly. When the temperature detection device remotely detects that the temperature of the asphalt mixture in area A reaches 140-160°C, it reaches the discharge temperature range. At this time, the asphalt mixture in the mixing drum is mixed, and then the burner stops working, and the mixed asphalt mixture is poured out from the inlet and outlet for on-site repair of potholes on the asphalt pavement.
[0006] Furthermore, the temperature detection device includes a rotating bracket and a remote temperature sensing probe, the rotating bracket includes a heat insulation plate, a rotatable connecting bracket and a mounting plate, the heat insulation plate is fixedly connected to the lower portion of the right side wall of the induced draft exhaust device, one end of the rotatable connecting bracket is fixedly connected to the heat insulation plate, and the other end is fixedly connected to the top of the mounting plate, and at least one remote temperature sensing probe is installed at the lower portion of the mounting plate.
[0007] Furthermore, the induced draft exhaust device includes an induced draft hood, an exhaust pipe, and an induced draft fan. The induced draft hood is arranged at the upper right side of the heating and stirring device, and covers the smoke exhaust port and the upper half of the inlet and outlet ports on the right side of the heating and stirring device; an exhaust pipe is arranged on the top of the induced draft hood, and an induced draft fan is arranged on the top of the exhaust pipe. The induced draft fan is electrically connected to the control cabinet. Under the action of the induced draft fan, the combustion exhaust gas from the smoke exhaust port and the dust exhaust gas generated by the heating and stirring of the asphalt mixture in the heating and stirring device are actively discharged from the exhaust pipe on the top of the induced draft hood.
[0008] Furthermore, the heating and stirring device includes a stirring drum, a stirring motor, a heat-insulating outer cover and a burner; the stirring drum is rotatably mounted on the trailer frame, the interior of the stirring drum is used to accommodate the stirred asphalt mixture, and the open port at the right end of the stirring drum is the inlet and outlet; the stirring motor is arranged on the left side of the stirring drum and is transmission-connected to the stirring drum, and is used to drive the stirring drum to rotate; the stirring motor is electrically connected to the control cabinet; the heat-insulating outer cover is fixedly connected to the trailer frame, the heat-insulating outer cover is sleeved on the outside of the stirring drum and a gap is left between the two, the gap forms a heating chamber, and the right side of the heating chamber is provided with a smoke exhaust port located above the right side of the stirring drum, and the smoke exhaust port is used to discharge the combustion exhaust gas of the heating chamber; the burner is fixedly mounted on the trailer frame and placed below the right side of the stirring drum, and the burner sprays fire into the heating chamber to quickly heat the outer wall of the stirring drum at high temperature, and the burner is electrically connected to the control cabinet, and the control cabinet controls the ignition or shutdown of the burner.
[0009] The beneficial effects of the utility model are as follows: during the process of heating and stirring the asphalt mixture, the asphalt pavement pothole repair machine of the utility model adopts an induced draft exhaust device to actively discharge the combustion exhaust gas from the smoke exhaust port and the dust exhaust gas generated by the heating and stirring of the asphalt mixture in the stirring drum, which is helpful for the flow of hot air inside the heating chamber and the stirring drum, so that the heating of each area of the stirring drum is more uniform, and the heating efficiency can be effectively improved; at the same time, a temperature detection device is used to perform real-time remote temperature detection of the asphalt mixture inside the stirring drum, which can accurately control the discharge temperature of the asphalt mixture and effectively improve the repair quality of the asphalt pavement. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the utility model.
[0011] Figure 2 It is a schematic diagram of the main structure of the temperature detection device of the utility model.
[0012] Figure 3 It is a side structural schematic diagram of the temperature detection device of the utility model.
[0013] Figure 4It is a schematic diagram of the structure of the whole machine control system of the utility model.
[0014] The markings in the accompanying drawings are: heating and stirring device 1, stirring drum 11, stirring motor 12, heat insulation cover 13, burner 14, supporting wheel 15, inlet and outlet 16, rotating shaft 17, heating chamber 18, smoke exhaust port 19, induced draft and exhaust device 2, induced draft hood 21, exhaust pipe 22, induced draft fan 23, temperature detection device 3, rotating bracket 31, heat insulation board 311, rotatable connecting bracket 312, mounting plate 313, remote temperature sensing probe 32, trailer frame 4, wheel 41, control cabinet 5, digital display panel 51, generator 6, and discharge hopper 7. DETAILED DESCRIPTION
[0015] The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
[0016] like Figures 1 to 4 As shown, an asphalt road pothole repair machine includes a trailer frame 4, a control cabinet 5 for controlling the operation of the whole machine and a generator 6 for providing power for the operation of the whole machine. A wheel 41 is provided at the bottom of the trailer frame 4, and the generator 6 is electrically connected to the control cabinet 5. The generator 6 is a 30KW high-horsepower four-cylinder diesel generator. In addition to meeting the electricity consumption of the whole machine for normal operation of the repair machine of the utility model, the generator 6 can also drive electric tools related to highway maintenance operations, such as an electric breaker, a road blower, a road heating machine, etc.; various electrical components for controlling the operation of the whole machine are assembled inside the control cabinet 5, and a digital display panel 51 is provided on the side wall of the control cabinet 5. The digital display panel 51 can display the temperature data detected in real time by the remote temperature sensing probe 32. The asphalt pavement pothole repairing machine also includes a heating and stirring device 1 arranged on the trailer frame 4 for accommodating heated and stirred asphalt mixture, an induced draft exhaust device 2 arranged on the upper right side of the heating and stirring device 1, and a temperature detection device 3 arranged on the lower right side of the induced draft exhaust device 2; during the heating and stirring process, the combustion exhaust gas and dust exhaust gas generated by the heating and stirring device 1 are actively discharged through the induced draft exhaust device 2, and the asphalt mixture in the heating and stirring device 1 is remotely temperature detected in real time through the temperature detection device 3.
[0017] like Figure 1As shown, the heating and stirring device 1 includes a stirring drum 11, a stirring motor 12, a heat-insulating outer cover 13 and a burner 14; the stirring drum 11 is a cylindrical structure with conical shapes on the left and right sides, and a supporting wheel 15 is provided below the right conical part of the cylinder, and the open port at the right end of the cylinder is an inlet and outlet 16. The cylinder is hollow and a spiral stirring blade is provided on the inner wall. The interior of the cylinder is used to accommodate the stirred asphalt mixture. A rotating shaft 17 is provided at the left end of the cylinder. The stirring drum 11 is rotatably mounted on the trailer frame 4 through the rotating shaft 17 and the supporting wheel 15; the stirring motor 12 is provided on the left side of the stirring drum 11 and is transmission-connected to the rotating shaft 17 at the left end of the stirring drum 11, and is used to drive the stirring drum 11 to rotate. The stirring motor 12 is electrically connected to the control cabinet 5 The heat-insulating outer cover 13 is fixedly connected to the trailer frame 4, and the heat-insulating outer cover 13 is sleeved on the outside of the mixing drum 11 with a gap therebetween, and the gap forms a heating chamber 18. The right side of the heating chamber 18 is provided with a smoke exhaust port 19 and a burner 14 located on the upper and lower sides of the mixing drum 11. The burner 14 is fixedly mounted on the trailer frame 4 and placed at the lower right side of the mixing drum 44. The burner 14 sprays fire into the heating chamber 18 to quickly heat the outer wall of the mixing drum 11 at high temperature. The burner 14 is electrically connected to the control cabinet 5, and the control cabinet 5 controls the ignition or shutdown of the burner 14 to ensure that the discharge temperature of the asphalt mixture in the mixing drum 11 is within the set range. The smoke exhaust port 19 is used to discharge the combustion exhaust gas of the heating chamber 18.
[0018] like Figures 1 to 3 As shown, the temperature detection device 3 includes a rotating bracket 31 and a remote temperature sensing probe 32. The rotating bracket 31 includes a heat insulation board 311, a rotatable connecting bracket 312 and a mounting plate 313. The heat insulation board 311 is fixedly connected to the lower part of the right side wall of the induced draft hood 21. One end of the rotatable connecting bracket 312 is fixedly connected to the heat insulation board 311, and the other end is fixedly connected to the top of the mounting plate 313. At least one remote temperature sensing probe 32 is installed at the lower part of the mounting plate 313. The remote temperature sensing probe 32 is preferably a far-infrared temperature sensor. Each remote temperature sensing probe 32 is electrically connected to the control cabinet 5. The sensing end of each remote temperature sensing probe 32 points to the lower right end of the cylinder body of the mixing drum 11, so as to perform real-time remote temperature detection of the asphalt mixture in the mixing drum 11.
[0019] like Figure 1As shown, the induced draft exhaust device 2 includes an induced draft hood 21, an exhaust pipe 22, and an induced draft fan 23. The induced draft hood 21 is arranged above the right side of the mixing drum 11, and the induced draft hood 21 covers the smoke exhaust port 19 and the upper half of the inlet and outlet port 16; the left side wall of the induced draft hood 21 is fixedly connected to the right side of the heat insulation outer cover 13, the smoke exhaust port 19 is located inside the induced draft hood 21, and the right side wall of the induced draft hood 21 covers the upper half of the inlet and outlet port 16 with a gap between the two, and the gap forms an exhaust channel; the top of the induced draft hood 21 is provided with There is an exhaust pipe 22, and a draft fan 23 is provided on the top of the exhaust pipe 22, and the draft fan 23 is electrically connected to the control cabinet 5; under the action of the draft fan 23, the combustion exhaust gas from the smoke exhaust port 19 and the dust exhaust gas generated by the heating and stirring of the asphalt mixture in the mixing drum 11 (dust, water vapor, etc. generated by the heating and stirring of the asphalt mixture) are actively discharged from the exhaust pipe 22 on the top of the draft hood 21, which is helpful for the flow of hot air in the heating chamber 18 and the mixing drum 11, so that the heating of each area of the mixing drum 11 is more uniform.
[0020] like Figure 1 As shown, the asphalt pavement pothole repair machine also includes a discharge hopper 7, which is fixedly mounted on the right end of the trailer frame 4. The discharge hopper 7 is tilted with the left side higher than the right side, and the left end of the discharge hopper 7 is located below the inlet and outlet 16 of the mixing drum 11. The mixed asphalt mixture is poured out from the inlet and outlet 16 and falls onto the ground or into a small engineering truck through the discharge hopper 7.
[0021] like Figures 1 to 4 As shown, gravel and new asphalt material or tailings from asphalt mixing station or old asphalt pavement milling material are loaded into the mixing drum 11 from the inlet and outlet, and then the mixing motor 12 is started to drive the mixing drum 11 to rotate, and the asphalt mixture in the mixing drum 11 is stirred by the spiral stirring blades, and at the same time, the burner 14 is started to heat the outer wall of the mixing drum 11 quickly and at high temperature; during the heating and stirring process, the exhaust device 2 actively discharges the combustion exhaust gas from the exhaust port 19 and the dust exhaust gas generated by the heating and stirring of the asphalt mixture in the mixing drum 11, which helps the flow of hot air in the heating chamber 18 and the mixing drum 11, so that the mixing drum 11 is heated and cooled. The regional heating is more uniform, which can effectively improve the heating efficiency. At the same time, the temperature detection device 3 performs real-time remote temperature detection on the asphalt mixture in the internal area A of the mixing drum 11. After heating and stirring for 8-10 minutes, the asphalt mixture in the mixing drum 11 is stirred and mixed evenly. When the temperature detection device 3 remotely detects that the temperature of the asphalt mixture in area A reaches 140-160°C, it reaches the discharge temperature range. At this time, the asphalt mixture in the mixing drum 11 is mixed. Then, the burner 14 stops working and pours the mixed asphalt mixture out from the inlet and outlet 16 for on-site repair of potholes in the asphalt pavement.
[0022] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. An asphalt road pothole repair machine, comprising a trailer frame, a control cabinet for controlling the operation of the whole machine and a generator for providing power for the operation of the whole machine are provided at the front end of the top of the trailer frame, the generator is electrically connected to the control cabinet, and a heating and stirring device for accommodating heated and stirred asphalt mixture is provided on the top of the trailer frame, characterized in that: An induced draft exhaust device is provided at the upper right side of the heating and stirring device, and the induced draft exhaust device covers the smoke exhaust port and the upper half of the inlet and outlet ports on the right side of the heating and stirring device, and actively discharges the combustion exhaust gas and dust exhaust gas generated by the heating and stirring device during the heating and stirring process; a temperature detection device is provided at the lower right side of the induced draft exhaust device, and the temperature detection device is provided with at least one remote temperature sensing probe, each remote temperature sensing probe is electrically connected to the control cabinet, and the sensing end of each remote temperature sensing probe points to the lower right end of the interior of the heating and stirring device, and during the heating and stirring process, real-time remote temperature detection is performed on the asphalt mixture in the heating and stirring device.
2. The asphalt pavement pothole repairing machine according to claim 1, characterized in that: The temperature detection device includes a rotating bracket and a remote temperature sensing probe. The rotating bracket includes a heat insulation board, a rotatable connecting bracket and a mounting plate. The heat insulation board is fixedly connected to the lower portion of the right side wall of the induced draft exhaust device. One end of the rotatable connecting bracket is fixedly connected to the heat insulation board, and the other end is fixedly connected to the top of the mounting plate. At least one remote temperature sensing probe is installed at the bottom of the mounting plate.
3. The asphalt pavement pothole repairing machine according to claim 1, characterized in that: The induced draft exhaust device includes an induced draft hood, an exhaust pipe, and an induced draft fan. The induced draft hood is arranged at the upper right side of the heating and stirring device, and covers the smoke exhaust port and the upper half of the inlet and outlet ports on the right side of the heating and stirring device. An exhaust pipe is arranged on the top of the induced draft hood, and an induced draft fan is arranged on the top of the exhaust pipe. The induced draft fan is electrically connected to the control cabinet. Under the action of the induced draft fan, the combustion exhaust gas from the smoke exhaust port and the dust exhaust gas generated by the heating and stirring of the asphalt mixture in the heating and stirring device are actively discharged from the exhaust pipe on the top of the induced draft hood.
4. The asphalt pavement pothole repairing machine according to any one of claims 1 to 3, characterized in that: The heating and stirring device comprises a stirring drum, a stirring motor, a heat-insulating outer cover and a burner; the stirring drum is rotatably mounted on the trailer frame, the interior of the stirring drum is used to accommodate the stirred asphalt mixture, and the open port at the right end of the stirring drum is the inlet and outlet; the stirring motor is arranged on the left side of the stirring drum and is transmission-connected with the stirring drum for driving the stirring drum to rotate; the stirring motor is electrically connected to the control cabinet; the heat-insulating outer cover is fixedly connected to the trailer frame, the heat-insulating outer cover is sleeved on the outside of the stirring drum with a gap between the two, the gap forms a heating chamber, and a smoke exhaust port is provided on the right side of the heating chamber, which is located above the right side of the stirring drum, and the smoke exhaust port is used to discharge the combustion exhaust gas of the heating chamber; the burner is fixedly mounted on the trailer frame and placed below the right side of the stirring drum, and the burner sprays fire into the heating chamber to quickly heat the outer wall of the stirring drum at high temperature, and the burner is electrically connected to the control cabinet, and the control cabinet controls the ignition or shutdown of the burner.
Citation Information
Cited By
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