Self-adaptive control device for screed plate of paver

Abstract

The invention discloses a self-adaptive control device of a paver screed, and relates to the technical field of road construction, the self-adaptive control device comprises a screed body, the screed body comprises a temperature control mechanism used for adjusting temperature, the temperature control mechanism comprises a bottom plate, a first heating pipe, a second heating pipe, an adjusting plate and an infrared temperature sensor, the device has the advantages that the bottom surface of the bottom plate is scanned through the infrared temperature sensor, temperature data of all point positions of the whole bottom plate in a detection area are obtained in a matrix form, and then a data processing terminal analyzes the temperature data on the bottom plate, so that the temperature data of all point positions in the detection area are obtained. And a hydraulic rod is controlled by a control panel to drive an adjusting plate and a second heating pipe to move, so that the second heating pipe heats different positions of the bottom plate, the bottom of the bottom plate is comprehensively heated, and adhesion of asphalt to the bottom plate is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of road construction, in particular to an adaptive control device for a paver screed. Background Art

[0002] In the existing adaptive control device of the screed of a paver, when the screed is smoothing asphalt, the heating device in the screed is generally set at the front end or middle position of the screed, which makes the asphalt easily adhere to the surrounding areas of the bottom of the screed when the temperature is uneven. Therefore, we propose an adaptive control device for the screed of a paver. Summary of the Invention

[0003] The object of the present invention is to provide an adaptive control device for a paving machine screed.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an adaptive control device for a paving machine ironing plate, comprising an ironing plate body, the ironing plate body comprising a temperature control mechanism for adjusting the temperature, the temperature control mechanism comprising a base plate, a first heating tube, a second heating tube, an adjustment plate and an infrared temperature sensor, the top surface of the base plate being fixedly connected to the first heating tube, the oil outlet end of the first heating tube being connected to the oil inlet end of the second heating tube via a delivery pipe, the outer side of the second heating tube being detachably mounted on the inner wall of the adjustment plate, a hydraulic rod being fixedly connected to the side surface of the adjustment plate, baffles being detachably mounted on both sides of the base plate, and the infrared temperature sensor being detachably mounted on the baffles.

[0005] As a further solution of the present invention: a flow distributor is provided between the plurality of hydraulic rods.

[0006] As a further solution of the present invention: the ironing plate body also includes a vibrating mechanism, which includes a limit box, a vibrating shaft, a vibrating beam and an eccentric shaft. The bottom surface of the limit box is fixedly connected to the top surface of the base plate. A limit groove is provided on the inner wall of the limit box, and the limit groove passes through the bottom surface of the base plate. The vibrating beam is slidably connected to the inner wall of the limit groove, and the outer surface of the eccentric shaft is connected to the top end of the vibrating beam.

[0007] As a further solution of the present invention: one end of the eccentric shaft is fixedly connected to the first servo motor, the other end of the eccentric shaft passes through one end of the baffle and is fixedly connected to the driving wheel, the outer side of the driving wheel is rollingly connected to the transmission belt, the inner wall of the other side of the transmission belt is rollingly connected to the driven wheel, the axis of the driven wheel is fixedly connected to the driven shaft, both ends of the driven shaft are rollingly connected to the inner wall of the baffle, the center of the driven shaft is fixedly connected to the first gear, the outer side of the first gear is meshed with the second gear, the two ends of the second gear are fixedly connected to the transmission shaft, the outer side of the transmission shaft is fixedly connected to the first eccentric block, and the ends of the two transmission shafts away from the second gear are rollingly connected to limiting blocks.

[0008] As a further solution of the present invention: the ironing plate body also includes a vibration mechanism, which includes a mounting block, a vibration plate, a second servo motor and a driving shaft. The side surfaces of the multiple mounting blocks are respectively connected to the base plate and the limit box. The bottom surface of the vibration plate is provided with a mounting groove adapted to the mounting block. The mounting block is connected to the vibration plate by a bolt. The top surface of the vibration plate is connected to the bottom surface of the second servo motor. The output end of the second servo motor is fixedly connected to one end of the driving shaft. The outer sides of both ends of the driving shaft are fixedly connected with a clamping block. The bottom of the clamping block is fixedly connected to the top surface of the vibration plate. Both ends of the driving shaft are fixedly connected with a second eccentric block.

[0009] As a further solution of the present invention: a slide groove is provided at the axis center of the second gear, the slide groove penetrates the inner wall of the transmission shaft, and the center of the driving shaft is located inside the slide groove.

[0010] As a further solution of the present invention: the front end of the limit box is fixedly connected to a scraper box, the inner wall of the scraper box is fixedly connected to a telescopic motor, and the bottom end of the telescopic motor is fixedly connected to a scraper.

[0011] As a further solution of the present invention: the infrared temperature sensor is electrically connected to a data processing terminal, the output end of the first servo motor is provided with a torque sensor, the torque sensor is electrically connected to the data processing terminal, the data processing terminal is electrically connected to a control panel, and the control panel is electrically connected to the first servo motor, the second servo motor, the hydraulic rod and the telescopic motor respectively.

[0012] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The present invention uses an infrared temperature sensor to scan the bottom surface of the base plate, and uses a matrix format to obtain temperature data of all points on the entire base plate within the detection area. The data processing terminal then analyzes the temperature data on the base plate and uses a control panel to control the hydraulic rod to drive the adjustment plate and the second heating tube to move. This allows the second heating tube to heat different positions of the base plate, thereby ensuring that the bottom of the base plate is fully heated and reducing the adhesion of asphalt to the base plate.

[0014] 2. The present invention drives the eccentric shaft to rotate by a first servo motor, which in turn drives the driving wheel, the transmission belt, the driven wheel, and the driven shaft to rotate. The driven shaft then drives the first gear, the second gear, and the transmission shaft to rotate. The transmission shaft then drives the first eccentric mass to rotate, thereby causing the screed body to vibrate for the first time. A torque sensor is used to obtain rotation data of the first servo motor, which is then transmitted to a data processing terminal. A simulation model is set in the data processing terminal to obtain current vibration data of the screed body. The control panel then controls the rotation frequency of the second servo motor, which in turn drives the driving shaft and the second eccentric mass to rotate. This increases the vibration frequency of the screed body, allowing the screed body to more conveniently smooth asphalt.

[0015] 3. The present invention sets a water level sensor on the paver, and then uses the water level sensor to monitor when the paver passes through the raised ground, transmits the data to the data processing terminal, and then uses the data processing terminal to analyze the asphalt discharge amount, and finally generates a control instruction to control the telescopic motor to work by the control panel, so that the telescopic motor drives the scraper to scrape the excess asphalt discharged on the ground, thereby ensuring the neatness of the horizontal surface.

[0016] Other advantages, objects and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of the screed body in an embodiment of the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of the screed body in an embodiment of the present invention;

[0019] Figure 3 Schematic diagram of the bottom plate in an embodiment of the present invention;

[0020] Figure 4 Schematic diagram of a vibration plate in an embodiment of the present invention;

[0021] Figure 5Schematic diagram of the connection relationship of the adjustment plate in an embodiment of the present invention;

[0022] Figure 6 This is an exploded schematic diagram of the connection relationship of the first gear in an embodiment of the present invention;

[0023] Figure 7 This is a flow chart of the temperature control mechanism in an embodiment of the present invention;

[0024] Figure 8 This is a flow chart of the vibration mechanism in an embodiment of the present invention.

[0025] In the figure: 1. Screed body;

[0026] 2. Temperature control mechanism; 21. Bottom plate; 22. First heating tube; 23. Second heating tube; 24. Adjustment plate; 25. Infrared temperature sensor; 26. Hydraulic rod; 27. Baffle;

[0027] 3. Vibrating mechanism; 31. Limit box; 32. Vibrating shaft; 33. Vibrating beam; 34. Eccentric shaft; 35. First servo motor; 36. Driving pulley; 37. Transmission belt; 38. Driven pulley; 39. Driven shaft; 310. First gear; 311. Second gear; 312. Transmission shaft; 313. Limiting block

[0028] 4. Vibration mechanism; 41. Mounting block; 42. Vibration plate; 43. Second servo motor; 44. Active shaft; 45. Clamping block

[0029] 5. Scraper box; 51. Telescopic motor; 52. Scraper

[0030] 100. Data processing terminal; 110. Control panel; 120. Torque sensor. DETAILED DESCRIPTION

[0031] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0032] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] Please see the attached Figure 1 -Attached Figure 8The present invention provides an adaptive control device for a screed plate of a paving machine, comprising a screed plate body 1, the screed plate body 1 including a temperature control mechanism 2 for adjusting the temperature, the temperature control mechanism 2 including a bottom plate 21, a first heating tube 22, a second heating tube 23, an adjustment plate 24 and an infrared temperature sensor 25. The top surface of the bottom plate 21 is fixedly connected to the first heating tube 22, the oil outlet end of the first heating tube 22 is connected to the oil inlet end of the second heating tube 23 via a delivery pipe, the outer side of the second heating tube 23 is detachably mounted on the inner wall of the adjustment plate 24, the side of the adjustment plate 24 is fixedly connected to a hydraulic rod 26, baffles 27 are detachably mounted on both sides of the bottom plate 21, and the infrared temperature sensor 25 is detachably mounted on the baffles 27. The infrared temperature sensor 25 scans the bottom surface of the bottom plate 21 in a matrix manner, and a heating tank is provided in the paving machine, and the inlet and outlet of the heating tank are respectively connected to the oil inlet of the first heating tube 22 and the oil outlet of the second heating tube 23, thereby heating the bottom of the screed plate body 1.

[0034] In the first embodiment, a flow distributor is provided between the plurality of hydraulic rods 26;

[0035] Specifically, the bottom surface of the base plate 21 is scanned by the infrared temperature sensor 25, and the temperature data of all points of the entire base plate 21 in the detection area are obtained in a matrix form. Then, the data processing terminal 100 analyzes the temperature data on the base plate 21, and then uses the control panel 110 to control the hydraulic rod 26 to drive the adjustment plate 24 and the second heating tube 23 to move, so that the second heating tube 23 heats different positions of the base plate 21, thereby ensuring that the bottom of the base plate 21 is fully heated and reducing the adhesion of asphalt to the base plate 21.

[0036] In the second embodiment, the screed body 1 further includes a vibrating mechanism 3, which includes a limit box 31, a vibrating shaft 32, a vibrating beam 33 and an eccentric shaft 34. The bottom surface of the limit box 31 is fixedly connected to the top surface of the bottom plate 21. The inner wall of the limit box 31 is provided with a limit groove, and the limit groove passes through the bottom surface of the bottom plate 21. The vibrating beam 33 is slidably connected to the inner wall of the limit groove. The outer surface of the eccentric shaft 34 is connected to the top of the vibrating beam 33. One end of the eccentric shaft 34 is fixedly connected to the first servo motor 35. The eccentric shaft 34 is fixedly connected to the first servo motor 35. The other end passes through one end of the baffle 27 and is fixedly connected to a driving wheel 36. The outer side of the driving wheel 36 is rollingly connected to a transmission belt 37. The inner wall of the other side of the transmission belt 37 is rollingly connected to a driven wheel 38. The axis of the driven wheel 38 is fixedly connected to a driven shaft 39. Both ends of the driven shaft 39 are rollingly connected to the inner wall of the baffle 27. The center of the driven shaft 39 is fixedly connected to a first gear 310. The outer side of the first gear 310 is meshed with a second gear 311. Both ends of the second gear 311 are fixedly connected to the transmission shaft. 312, the outer side of the transmission shaft 312 is fixedly connected with a first eccentric block, and the ends of the two transmission shafts 312 away from the second gear 311 are rollingly connected with a limit block 313. The screed body 1 also includes a vibration mechanism 4, which includes a mounting block 41, a vibration plate 42, a second servo motor 43 and a driving shaft 44. The sides of the multiple mounting blocks 41 are respectively connected to the bottom plate 21 and the limit box 31. The bottom surface of the vibration plate 42 is provided with a mounting groove adapted to the mounting block 41. The mounting block 41 is fixed with a plurality of bolts. It is connected to the vibration plate 42, the top surface of the vibration plate 42 is connected to the bottom surface of the second servo motor 43, the output end of the second servo motor 43 is fixedly connected to one end of the driving shaft 44, and the outer sides of both ends of the driving shaft 44 are fixedly connected to the clamping blocks 45. The bottom of the clamping blocks 45 is fixedly connected to the top surface of the vibration plate 42. Both ends of the driving shaft 44 are fixedly connected to the second eccentric block. A slide groove is opened at the axis center of the second gear 311, and the slide groove passes through the inner wall of the transmission shaft 312. The center of the driving shaft 44 is located inside the slide groove;

[0037] The asphalt at the bottom of the screed body 1 is vibrated by the vibrating mechanism 3 to reduce the air in the asphalt;

[0038] Specifically, the eccentric shaft 34 is driven to rotate by the first servo motor 35, and the eccentric shaft 34 is used to drive the driving wheel 36, the transmission belt 37, the driven wheel 38 and the driven shaft 39 to rotate, so that the driven shaft 39 drives the first gear 310, the second gear 311 and the transmission shaft 312 to rotate, so that the transmission shaft 312 drives the first eccentric weight to rotate, thereby performing a first vibration on the screed body 1, and the torque sensor 120 is used to obtain the rotation data of the first servo motor 35, and then the rotation data is transmitted to the data processing terminal 100, and the simulation model set in the data processing terminal 100 is used to obtain the current vibration data of the screed body 1, and then the control panel 110 is used to control the rotation frequency of the second servo motor 43, so that the second servo motor 43 drives the driving shaft 44 and the second eccentric weight to rotate, thereby increasing the vibration frequency of the screed body 1, so that the screed body 1 can more conveniently smooth the asphalt.

[0039] In the third embodiment, the front end of the limit box 31 is fixedly connected to the scraper box 5, the inner wall of the scraper box 5 is fixedly connected to the telescopic motor 51, the bottom end of the telescopic motor 51 is fixedly connected to the scraper 52, the infrared temperature sensor 25 is electrically connected to the data processing terminal 100, the output end of the first servo motor 35 is provided with a torque sensor 120, the torque sensor 120 is electrically connected to the data processing terminal 100, the data processing terminal 100 is electrically connected to the control panel 110, and the control panel 110 is electrically connected to the first servo motor 35, the second servo motor 43, the hydraulic rod 26 and the telescopic motor 51 respectively;

[0040] Specifically, when the paver passes over a raised ground, the existing screed body 1 needs to enlarge the raised surface by a ratio of about 1:5, so that there will be an extra part of the convexity on the plane before it is smoothed, which causes the road surface to be slightly raised. By setting a water level sensor on the paver, and then using the water level sensor to monitor when the paver passes over the raised ground, the data is transmitted to the data processing terminal 100, and then the data processing terminal 100 is used to analyze the asphalt discharge amount, and finally a control instruction is generated by the control panel 110 to control the telescopic motor 51 to work, so that the telescopic motor 51 drives the scraper 52 to scrape the excess asphalt discharged on the ground, thereby ensuring the neatness of the horizontal surface.

[0041] Working principle:

[0042] First, the screed body 1 is driven to move by the paver when it moves, and then the temperature distribution of the bottom of the bottom plate 21 is measured by the infrared temperature sensor 25. Then, the temperature data is analyzed by the data processing terminal 100 to generate a temperature adjustment instruction for the corresponding bottom plate 21. The control panel 110 controls the hydraulic rod 26 to move the adjustment plate 24 and the second heating tube 23, so that the bottom plate 21 can better iron the asphalt during preheating and operation. Secondly, when the vibrating mechanism 3 vibrates the asphalt, the first servo motor 35 is used to drive the eccentric shaft 34 to rotate, and the eccentric shaft 34 is used to drive the driving wheel 36, the transmission belt 37, the driven wheel 38 and the driven shaft 39 to rotate, so that the driven shaft 3 9 drives the first gear 310, the second gear 311 and the transmission shaft 312 to rotate, so that the transmission shaft 312 drives the first eccentric weight to rotate, thereby causing the screed body 1 to vibrate for the first time. The torque sensor 120 is used to obtain the rotation data of the first servo motor 35, and then the rotation data is transmitted to the data processing terminal 100. The simulation model set in the data processing terminal 100 is used to obtain the current vibration data of the screed body 1. Then, the control panel 110 is used to control the rotation frequency of the second servo motor 43, so that the second servo motor 43 drives the driving shaft 44 and the second eccentric weight to rotate, thereby increasing the vibration frequency of the screed body 1. At this point, the entire workflow is completed.

[0043] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0045] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0046] It is obvious to those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these changes still fall within the scope of protection of the present invention.

Claims

1. An adaptive control device for a paving machine screed, comprising a screed body (1), characterized in that: The screed body (1) includes a temperature control mechanism (2) for adjusting temperature. The temperature control mechanism (2) includes a base plate (21), a first heating tube (22), a second heating tube (23), an adjustment plate (24), and an infrared temperature sensor (25). The top surface of the base plate (21) is fixedly connected to the first heating tube (22). The oil outlet end of the first heating tube (22) is connected to the oil inlet end of the second heating tube (23) via a delivery pipe. The outer side of the second heating tube (23) is detachably mounted on the inner wall of the adjustment plate (24). A hydraulic rod (26) is fixedly connected to the side of the adjustment plate (24). Baffles (27) are detachably mounted on both sides of the base plate (21). The infrared temperature sensor (25) is detachably mounted on the baffles (27).

2. The adaptive control device for a paver screed according to claim 1, characterized in that: A flow distributor is provided between the plurality of hydraulic rods (26).

3. The adaptive control device for a paver screed according to claim 1, characterized in that: The screed body (1) further includes a vibrating mechanism (3), which includes a limit box (31), a vibrating shaft (32), a vibrating beam (33) and an eccentric shaft (34). The bottom surface of the limit box (31) is fixedly connected to the top surface of the bottom plate (21). A limit groove is provided on the inner wall of the limit box (31), and the limit groove passes through the bottom surface of the bottom plate (21). The vibrating beam (33) is slidably connected to the inner wall of the limit groove. The outer surface of the eccentric shaft (34) is connected to the top end of the vibrating beam (33).

4. The adaptive control device for a paver screed according to claim 3, characterized in that: One end of the eccentric shaft (34) is fixedly connected to a first servo motor (35), and the other end of the eccentric shaft (34) passes through one end of the baffle (27) and is fixedly connected to a driving wheel (36). The outer side of the driving wheel (36) is rollingly connected to a transmission belt (37), and the inner wall of the other side of the transmission belt (37) is rollingly connected to a driven wheel (38). The axis of the driven wheel (38) is fixedly connected to a driven shaft (39), and both ends of the driven shaft (39) are rollingly connected. Connected to the inner wall of the baffle (27), the center of the driven shaft (39) is fixedly connected to a first gear (310), the outer side of the first gear (310) is meshed with a second gear (311), both ends of the second gear (311) are fixedly connected to a transmission shaft (312), the outer side of the transmission shaft (312) is fixedly connected to a first eccentric block, and the ends of the two transmission shafts (312) away from the second gear (311) are rollingly connected to a limiting block (313).

5. The adaptive control device for a paver screed according to claim 4, characterized in that: The screed body (1) further includes a vibration mechanism (4), which includes a mounting block (41), a vibration plate (42), a second servo motor (43) and a driving shaft (44). The side surfaces of the plurality of mounting blocks (41) are respectively connected to the bottom plate (21) and the limit box (31). The bottom surface of the vibration plate (42) is provided with a mounting groove adapted to the mounting block (41). The mounting block (41) is connected to the vibration plate (42) by bolts. The top surface of the vibration plate (42) is connected to the bottom surface of the second servo motor (43). The output end of the second servo motor (43) is fixedly connected to one end of the driving shaft (44). The outer sides of both ends of the driving shaft (44) are fixedly connected with a clamping block (45). The bottom of the clamping block (45) is fixedly connected to the top surface of the vibration plate (42). Both ends of the driving shaft (44) are fixedly connected with a second eccentric block.

6. The adaptive control device for a paver screed according to claim 5, characterized in that: A sliding groove is provided at the axis center of the second gear (311), and the sliding groove passes through the inner wall of the transmission shaft (312). The center of the driving shaft (44) is located inside the sliding groove.

7. The adaptive control device for a paver screed according to claim 6, characterized in that: The front end of the limit box (31) is fixedly connected to a scraper box (5), the inner wall of the scraper box (5) is fixedly connected to a telescopic motor (51), and the bottom end of the telescopic motor (51) is fixedly connected to a scraper (52).

8. The adaptive control device for a paver screed according to claim 7, characterized in that: The infrared temperature sensor (25) is electrically connected to a data processing terminal (100), and the data processing terminal (100) is electrically connected to a control panel (110). The output end of the first servo motor (35) is provided with a torque sensor (120), and the torque sensor (120) is electrically connected to the data processing terminal (100). The control panel (110) is electrically connected to the first servo motor (35), the second servo motor (43), the hydraulic rod (26), and the telescopic motor (51), respectively.

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