A stress absorbing patch paving device and a paving vehicle thereof

Abstract

The utility model relates to a stress absorbing patch spreading device and a spreading vehicle thereof, wherein the spreading device comprises a movable frame, the movable frame is provided with a unwinding mechanism, the unwinding mechanism is used for unwinding the stress absorbing patch roll, and the movable frame is respectively provided with a supporting roller, a winding mechanism and a pressing roller mechanism downstream in the conveying direction of the stress absorbing patch, the supporting roller, the winding mechanism and the pressing roller mechanism are distributed in a triangular structure, the winding mechanism is used for collecting a protective film on the stress absorbing patch, and the pressing roller mechanism is used for pressing the stress absorbing patch after the protective film is separated; the utility model has the effect that it can replace the method of manually spreading stress absorbing patches, thereby improving the convenience and efficiency of spreading.

Description

Technical Field

[0001] The utility model belongs to the field of road construction, and in particular relates to a stress absorbing sticker paving device and a paving vehicle thereof. Background Art

[0002] Stress absorbing sticker is a road interlayer composite material with integrated stress absorption, interlayer bonding and waterproofing functions. In order to avoid structural reflective cracks in asphalt road projects and shrinkage cracks and load-type shear cracks between cement slabs in white-on-black road reconstruction projects from being reflected to the surface layer, a layer of high-performance stress absorbing sticker is laid between cement slabs, water-stabilizing agents or asphalt structural layers. It can fully inhibit and delay reflective cracks, water damage and other diseases while playing the role of an overall sealing waterproof layer and adhesive layer.

[0003] At present, the conventional method of laying stress-absorbing stickers is to lay them manually. First, the road surface is cleaned, the rolled stress-absorbing stickers are unfolded, the protective film is peeled off, and then the adhesive surface of the stress-absorbing stickers is stuck to the ground, and the stress-absorbing stickers are compacted with a pressure roller. Manual laying is time-consuming and labor-intensive. Utility Model Content

[0004] In order to improve the problem that manual stress absorption tape is time-consuming and labor-intensive, the utility model provides a stress absorption tape paving device, and the specific technical solution is as follows:

[0005] A stress absorbing patch spreading device comprises a movable frame, on which a unwinding mechanism is provided, the unwinding mechanism is used to unwind the stress absorbing patch roll, and downstream of the conveying direction of the stress absorbing patch, the movable frame is respectively provided with a supporting roller, a winding mechanism and a pressing roller mechanism, after the stress absorbing patch passes through the supporting roller, the supporting roller, the winding mechanism and the pressing roller mechanism are distributed in a triangular structure, because the supporting roller, the winding mechanism and the pressing roller mechanism are distributed in a triangular structure with the supporting roller as the supporting point, under the pulling and winding action of the winding mechanism on the protective film, and under the pressing action of the pressure roller mechanism on the stress absorbing patch, the protective film on the stress absorbing patch is separated from it.

[0006] When spreading the stress absorbing tape roll, first install the stress absorbing tape roll on the unwinding mechanism, the unwinding mechanism unwinds, unfolds the head of the stress absorbing tape, passes around the support roller, tears off the protective film, and rolls the protective film on the rewinding mechanism, the adhesive surface of the stress absorbing tape is attached to the ground, the pressure roller mechanism rolls the stress absorbing tape to make it stick to the ground, the mobile frame moves, and the unwinding mechanism continues to unwind, with the support roller as the support point, under the pulling and rewinding action of the rewinding mechanism on the protective film, and the pressing action of the pressure roller mechanism on the stress tape, the protective film on the stress absorbing tape is separated from it, and the rewinding mechanism continues to rewind, thereby replacing the manual paving method, improving work efficiency, and reducing the workload of workers.

[0007] In a specific possible implementation scheme, the unwinding mechanism includes a magnetic powder brake arranged on a movable frame, the movable frame is also provided with a position sensor, the position sensor is used to detect the number of unwinding turns, and the output shaft of the magnetic powder brake is coaxially provided with a transmission member;

[0008] The transmission member includes a driving wheel coaxially arranged on the output shaft of the magnetic powder brake, a driven wheel is rotatably arranged on the movable frame, the driving wheel and the driven wheel are connected by a chain, the driven wheel is coaxially connected to the driving gear, and the end of the stress absorbing tape roll core shaft is provided with a driven gear meshing with the driving gear.

[0009] When it is necessary to spread the stress absorbing patch, tear off the protective film on the stress absorbing patch, and the stress absorbing patch adheres to the ground. Push the mobile frame, and the mobile frame drives the stress absorbing patch roll core shaft to rotate. The position sensor detects the number of unwinding turns of the stress absorbing patch roll. The radius of the stress absorbing patch roll can be calculated based on the thickness of the stress absorbing patch, that is, for each unwinding turn, the radius of the remaining roll is one layer less thick than the thickness of the material. Since the tension is set constant, the torque can be calculated. The magnetic powder brake controls the torque on the output shaft by adjusting the magnetic field strength, and then controls the rotation speed and strength of the driving wheel. The driving wheel rotates, and the driven wheel is driven to rotate through the chain, and then the gear is driven to rotate, and finally the driven gear meshing with the driving gear also starts to rotate. Since the driven gear is coaxial with the roll core shaft, the roll core shaft rotates accordingly, thereby realizing precise control of the stress absorbing patch roll unwinding process and ensuring uniform unwinding and paving quality of the material.

[0010] In a specific implementation scheme, a baffle is provided on the movable frame, a positioning cylinder is provided on the movable frame, a positioning rod is provided on the end face of the positioning cylinder piston rod, and the positioning rod and the baffle clamp the stress absorbing winding core shaft to limit the position.

[0011] After a roll of stress absorbing tape is unwound, the positioning cylinder drives the positioning rod to move upward, so that the core shaft of the stress absorbing tape can be removed, and a new stress absorbing tape can be placed on the baffle, and the driven gear and the driving gear are meshed. The positioning cylinder is used to push the positioning rod out to fix the new stress absorbing tape, so that the new stress absorbing tape can be fixed conveniently and quickly.

[0012] In a specific implementation scheme, the movable frame is provided with a guide rail for supplying the stress absorbing tape roll core shaft to slide to the baffle, and the stress absorbing tape roll core shaft is coaxially provided with at least two limiting clamps, and the limiting clamps are slidably engaged with the guide rail.

[0013] When the stress absorbing tape roll core shaft slides along the guide rail, the limiting clamp ring is used to clamp the guide rail for sliding, thereby increasing the stability of the stress absorbing tape roll core shaft sliding along the guide rail.

[0014] In a specific possible implementation scheme, the movable frame is provided with a lift, and the lift is provided with two support rods, the two support rods are arranged opposite to each other, and the top of each support rod is provided with a slot, and the slot is used to place the force-absorbing roll core shaft.

[0015] The stress absorbing tape core shaft is positioned by a clamping ring to increase its installation stability; when the stress absorbing tape needs to be rolled, the elevator drives the support rod to descend, the clamping groove is disengaged from the bearing, and the stress absorbing tape can be moved along the guide rail to the unwinding mechanism for the next step of operation.

[0016] In a specific possible implementation mode, the winding mechanism includes a film winding shaft arranged on a movable frame, the movable frame is provided with a power motor for driving the film winding shaft to rotate, and the movable frame is provided with a speed measuring switch.

[0017] When spreading the stress absorbing tape, a power motor is used to drive the film roll shaft to rotate to roll up the protective film. At the same time, a speed switch is used to detect the speed of the moving frame. Since the output power of the power motor is constant, the speed and torque of the protective film are adjusted in time according to the speed detected by the speed switch. This can adapt to the different moving speeds of the moving frame to ensure the stability and continuity of the film roll and avoid film breakage as much as possible.

[0018] In a specific possible implementation manner, the pressing roller mechanism comprises a pressing roller hinged on a movable frame, and a driving cylinder for driving the pressing roller to rotate is hinged on the movable frame.

[0019] During paving, the driving cylinder pushes the pressure roller downward, and the pressure roller presses on the stress absorbing sticker attached to the ground, thereby improving the stability of the stress absorbing sticker attached to the ground.

[0020] The utility model also provides a paving vehicle, and the specific technical solution is as follows:

[0021] A paving vehicle comprises a mobile vehicle and the above-mentioned paving device, wherein the mobile frame is arranged on the mobile vehicle, and the mobile vehicle is provided with a navigator and a detection component respectively, wherein the navigator is used to obtain the actual position information of the mobile vehicle and compare it with the predetermined target route, and transmit the offset information to the navigator, and the detection component is used to detect the steering information of the mobile vehicle (31) and transmit the steering information to the navigator, and the navigator transmits the steering information and the offset information to the mobile vehicle, and the steering wheel of the mobile vehicle is adjusted to control the driving direction of the mobile vehicle.

[0022] In a specific possible implementation mode, at least one limiting member for fixing the stress absorbing patch roll is provided in the compartment of the mobile vehicle.

[0023] In a specific feasible implementation scheme, the limiting component includes two power cylinders arranged in the carriage, and lifting rods are provided on the end faces of the piston rods of the two power cylinders. Two limiting plates are provided at the end of the lifting rods away from the power cylinders. A limiting ring is provided on the carriage, and the limiting ring corresponds to the lifting rods one by one, and the lifting rods move within the limiting rings.

[0024] The power cylinder is used to push the lifting rod to extend along the limit ring, and the stress absorption roll core shaft is limited by the limit plate, so that the stress absorption roll in the car can be positioned.

[0025] Beneficial technical effects of the utility model:

[0026] 1. Before paving stress-absorbing stickers, first hoist multiple rolls of stress-absorbing stickers into the carriage, use the power cylinder to push the limit plate out, the limit plate positions the core shaft of the stress-absorbing sticker roll, then install the stress-absorbing sticker roll on the mobile frame, and use the clamp ring to position it, install a roll of stress-absorbing sticker roll on the driving gear, mesh the driven gear with the driving gear, unfold the stress-absorbing sticker roll to be unwound, bypass the support roller, tear off the protective film, roll the end of the protective film on the film roll shaft, and adhere the stress-absorbing sticker to the ground. The driving cylinder drives the pressure roller to rotate, and the pressure roller presses on the surface of the stress-absorbing sticker pasted on the ground. Start the mobile vehicle to drive the mobile frame to move, and the sticker pasted on the ground The stress absorbing patch pulls the stress absorbing patch roll to unfold, and the magnetic powder brake controls the torque on the output shaft by adjusting the magnetic field strength, thereby controlling the rotation speed and strength of the driving wheel. The driving wheel rotates, which can drive the driven wheel, the driving gear, the driven gear and the stress absorbing patch roll core shaft to rotate, thereby controlling the tension while unwinding. At the same time, the speed measuring switch detects the moving speed of the mobile frame, controls the speed of the power motor, supports the stress absorbing patch through the support roller, and the film winding shaft continuously rewinds the protective film. The pressure roller presses the stress absorbing patch roll on the ground, so that the protective film on the stress absorbing patch is torn off from itself, achieving stable unwinding and rewinding, and spreading the stress absorbing patch steadily on the ground.

[0027] 2. After a roll of stress-absorbing tape is unwound, the mandrel is removed, the elevator drives the support rod to move downward, the card slot releases the stress-absorbing tape, and the snap ring on the stress-absorbing tape can move along the guide rail to slide the stress-absorbing tape to the baffle. The positioning cylinder pushes the positioning rod downward, and the positioning rod clamps the stress-absorbing tape mandrel at the baffle, and at the same time, the driven gear and the driving gear are meshed, so that the stress-absorbing tape can be replaced conveniently.

[0028] 3. When the stress-absorbing tape roll on the mobile rack is paved, the power cylinder drives the lifting rod and the limit plate to move downward, so that the stress-absorbing tape roll can be moved to the rear of the car, and then the stress-absorbing tape roll is lifted and moved to the support rod, so that the stress-absorbing tape roll can be installed on the mobile rack in a timely and convenient manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a paving vehicle in an embodiment of the utility model.

[0030] Figure 2 It is a structural schematic diagram of a mobile frame in an embodiment of the utility model.

[0031] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0032] Figure 4 It is a structural schematic diagram of a position limiting member in an embodiment of the utility model.

[0033] Figure 5 yes Figure 4 Enlarged view of part B in the middle.

[0034] Explanation of the reference numerals in the accompanying drawings: 1. movable frame; 2. unwinding mechanism; 3. winding mechanism; 4. pressure roller mechanism; 5. supporting member; 6. air expansion shaft; 7. driven gear; 8. bearing; 9. limiting clamp ring; 10. guide slide rail; 11. movable clamping groove; 12. baffle; 13. supporting frame; 14. positioning cylinder; 15. positioning rod; 16. magnetic powder brake; 17. driving wheel; 18. driven wheel; 19. chain; 20. driving gear; 21. supporting roller; 22. film winding shaft; 23. power motor; 24. swing rod; 25. roller pressure rod; 26. pressure roller; 27. driving cylinder; 28. lifting machine; 29. ​​support rod; 30. clamping groove; 31. moving vehicle; 32. limiting member; 33. power cylinder; 34. lifting rod; 35. limiting plate; 36. limiting ring. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 The utility model is described in further detail.

[0036] Reference Figure 1 , a stress absorbing patch paving device and a paving vehicle thereof.

[0037] The paving device includes a mobile frame 1, on which are provided an unwinding mechanism 2, a winding mechanism 3, a pressure roller mechanism 4 and a supporting member 5 for positioning the stress-absorbing paste roll. The unwinding mechanism 2 is located between the winding mechanism 3 and the supporting member 5, the pressure roller mechanism 4 is located at the end of the mobile frame 1, the unwinding mechanism 2 is used for unwinding the stress-absorbing paste roll, and the supporting member 5 is used for supporting the stress-absorbing paste roll.

[0038] Reference Figure 2 and Figure 3 In this embodiment, the core shaft of the stress absorption tape roll is an air expansion shaft 6, and one end of the air expansion shaft 6 is coaxially provided with a driven gear 7; the air expansion shaft 6 is coaxially provided with at least two limit snap rings 9. Specifically, in this embodiment, the two ends of the air expansion shaft 6 are coaxially provided with bearings 8, the driven gear 7 is located outside the bearing 8, and two limit snap rings 9 are provided on the outer peripheral wall of each bearing 8. In other embodiments, a limit snap ring 9 is coaxially provided on the outer peripheral wall of the bearing 8. In other embodiments, the limit snap ring 9 can also be directly provided on the air expansion shaft 6.

[0039] A guide rail 10 is protruding from the top wall of the mobile frame 1, and a movable slot 11 is formed between two limit snap rings 9 on the same bearing 8 to slide with the guide rail 10. In other embodiments, the top wall of the mobile frame 1 can also be concave to form the guide rail 10.

[0040] A baffle 12 is provided on the side of the guide slide rail 10 near the head of the moving frame 1, a support frame 13 is provided on the baffle 12, a positioning cylinder 14 is provided on the support frame 13, the positioning cylinder 14 is vertically downwardly arranged, a positioning rod 15 is provided on the end surface of the piston rod of the positioning cylinder 14, and the positioning rod 15 and the baffle 12 clamp the stress absorbing winding core shaft to limit the position.

[0041] Reference Figure 2 The unwinding mechanism 2 includes a magnetic powder brake 16 arranged at the bottom of the mobile frame 1. A position sensor and a controller are respectively provided on the mobile frame. The position sensor is used to detect the number of unwinding turns. The position sensor is a proximity switch in this embodiment. In other embodiments, it can also be replaced by other electronic components such as a Hall switch, an encoder, and a rotation counter. The position sensor transmits a signal of the number of unwinding turns detected to the controller. The controller receives the signal fed back by the sensor, outputs a radius, and transmits the radius signal to the magnetic powder brake 16. The output shaft of the magnetic powder brake 16 is coaxially provided with a driving wheel 17. A driven wheel 18 is rotatably provided on the mobile frame 1. The driving wheel 17 and the driven wheel 18 are connected by a chain 19. The driven wheel 18 is coaxially connected to a driving gear 20 meshing with the driven gear 7. The driving gear 20 is arranged close to one side of the baffle 12.

[0042] The front end surface of the mobile frame 1 is provided with support rollers 21, and the top wall of the mobile frame 1 is provided with conveying rollers; the front end surface of the mobile frame 1 is also provided with a film break alarm. The film break alarm is a photoelectric switch in this embodiment, and the film break alarm checks the unwinding of the stress absorbing tape. If the unwinding of the stress absorbing tape breaks during the laying process, an alarm is sounded.

[0043] The winding mechanism 3 includes a film winding shaft 22 arranged at the bottom of the movable frame 1, and the film winding shaft 22 is located below the conveying roller. The movable frame 1 is provided with a power motor 23 for driving the film winding shaft 22 to rotate. In this embodiment, the power motor 23 is a 1.8kw high-precision servo motor. The movable frame 1 is provided with a speed measuring switch, which is used to detect the moving speed of the movable frame 1 and transmit the speed information to the power motor 23. Since the output power of the power motor 23 is constant, the power motor 23 timely adjusts the speed and torque of the winding protective film according to the speed information to avoid the occurrence of film breakage.

[0044] The pressure roller mechanism 4 includes a pressure roller 26 hinged on the mobile frame 1, and the pressure roller 26 includes two swing rods 24 hinged on the head of the mobile frame 1 and a roller pressure rod 25 arranged between the two swing rods 24. A driving cylinder 27 for driving the pressure roller 26 to rotate is hinged on the mobile frame 1. In the present embodiment, there are two driving cylinders 27, and the two driving cylinders 27 correspond one to one to the two swing rods 24.

[0045] When the stress absorbing tape is unwound, the stress absorbing tape passes around the conveying roller and the supporting roller 21, and then the protective film is torn off and rolled onto the film roll shaft 22. The stress absorbing tape is attached to the road surface, and the roller pressure rod 25 is pressed onto the upper surface of the stress absorbing tape.

[0046] The supporting member 5 includes a lift 28 arranged in the movable frame 1. In the present embodiment, the lift 28 is a mobile platform lift 28, which can realize left and right movement and lifting functions. After the lift 28 receives the stress absorbing tape roll, its platform can move left and right to correct the stress absorbing tape roll, so as to facilitate the movable slot 11 of the air expansion shaft 6 to be stuck on the guide rail 10. Two relatively arranged struts 29 are provided on the platform of the lift 28, and a slot 30 is provided at the top of each strut 29.

[0047] Reference Figure 4 and Figure 5 , wherein the paving vehicle comprises a mobile vehicle 31 and a mobile frame 1, the mobile vehicle 31 and the mobile frame 1 are connected by a connecting rod, the two ends of the connecting rod are respectively hinged to the mobile vehicle 31 and the mobile frame 1, the mobile vehicle 31 is provided with a lifting mechanism, and a limiter 32 for fixing the stress absorbing tape roll is provided in the carriage of the mobile vehicle 31. In this embodiment, there are three limiters 32, and the three limiters 32 are evenly distributed along the length direction of the carriage, each limiter 32 comprises two power cylinders 33 arranged in the carriage, each power cylinder 33 is arranged vertically, and a lifting rod 34 is arranged on the end surface of the piston rod of each power cylinder 33, and two limiter plates 35 are arranged at one end of the lifting rod 34 away from the power cylinder 33, and the two limiter plates 35 are arranged obliquely to the side away from the central axis of the lifting rod 34, and a limiter ring 36 is provided on the carriage, and the limiter ring 36 corresponds to the lifting rod 34 one by one, and the lifting rod 34 moves in the limiter ring 36.

[0048] A navigator and a detection component are respectively provided in the mobile vehicle 31. In the present embodiment, the detection component is a gyroscope. The navigator is used to obtain the actual position information of the mobile vehicle 31 in real time by using Beidou navigation, and compare it with the predetermined target route. The predetermined target route is set by using the working principle of two points and one line. The offset information of the mobile vehicle 31 is obtained according to the comparison result. The detection component is used to check the steering information of the mobile vehicle 31 and transmit the steering information to the navigator. The navigator is also used to transmit the steering information and the offset information to the mobile vehicle 31. The steering information and the offset information control the automatic adjustment of the mobile vehicle 31. Specifically, the steering wheel of the mobile vehicle 31 can be precisely controlled by a high-precision servo motor to realize automatic driving and automatic adjustment. That is, the adjustment of the mobile vehicle 31 is specifically achieved by controlling the high-precision servo motor.

[0049] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A stress absorbing patch spreading device, characterized in that: The invention comprises a mobile frame (1), wherein the mobile frame (1) is provided with an unwinding mechanism (2), wherein the unwinding mechanism (2) is used to unwind a stress absorbing patch roll, and wherein a supporting roller (21), a rewinding mechanism (3) and a pressing roller mechanism (4) are respectively provided on the mobile frame (1) in the downstream of the conveying direction of the stress absorbing patch, wherein the supporting roller (21), the rewinding mechanism (3) and the pressing roller mechanism (4) are distributed in a triangular structure, wherein the rewinding mechanism (3) is used to collect a protective film on the stress absorbing patch, and the pressing roller mechanism (4) is used to press the stress absorbing patch after the protective film is separated.

2. A stress absorbing patch spreading device according to claim 1, characterized in that: The unwinding mechanism (2) comprises a magnetic powder brake (16) arranged on a movable frame (1), the movable frame (1) is also provided with a position sensor, the position sensor is used to detect the number of unwinding turns, and a transmission member is coaxially arranged on the output shaft of the magnetic powder brake (16); A driven gear (7) is provided at the end of the stress absorbing tape roll core shaft, and the transmission member is used to drive the driven gear (7) to rotate.

3. The stress absorbing patch spreading device according to claim 1, characterized in that: The movable frame (1) is provided with a baffle (12), the movable frame (1) is provided with a positioning cylinder (14), the end surface of the piston rod of the positioning cylinder (14) is provided with a positioning rod (15), and the positioning rod (15) and the baffle (12) clamp and limit the stress absorbing roll core shaft.

4. A stress absorbing patch spreading device according to claim 3, characterized in that: The movable frame (1) is provided with a guide rail (10) for supplying a stress absorbing roll core shaft to slide to the baffle (12); the stress absorbing roll core shaft is coaxially provided with at least two limit clamping rings (9); the limit clamping rings (9) are slidably engaged with the guide rail (10).

5. The stress absorbing patch spreading device according to claim 1, characterized in that: The movable frame (1) is provided with an elevator (28), and the elevator (28) is provided with two support rods (29). The two support rods (29) are arranged opposite to each other, and a slot (30) is provided at the top of each support rod (29). The slot (30) is used to place the force-absorbing roll core shaft.

6. The stress absorbing patch spreading device according to claim 1, characterized in that: The winding mechanism (3) comprises a film winding shaft (22) arranged on a movable frame (1); a power motor (23) for driving the film winding shaft (22) to rotate is arranged on the movable frame (1); and a speed measuring switch is arranged on the movable frame (1).

7. A paving vehicle, characterized in that: It comprises a moving vehicle (31) and the paving device according to any one of claims 1 to 6, wherein the moving frame (1) is arranged on the moving vehicle (31).

8. A paving vehicle according to claim 7, characterized in that: The mobile vehicle (31) has a navigator and a detection element in each of them. The navigator is used to obtain actual position information of the mobile vehicle (31), compare it with a predetermined target route, and transmit offset information to the navigator. The detection element is used to detect steering information of the mobile vehicle (31) and transmit the steering information to the navigator. The navigator transmits the steering information and the offset information to the mobile vehicle (31), and the steering wheel of the mobile vehicle (31) is adjusted to control the driving direction of the mobile vehicle.

9. A paving vehicle according to claim 7, characterized in that: At least one limiting member (32) for fixing the stress-absorbing patch roll is arranged in the carriage of the mobile vehicle (31).

10. A paving vehicle according to claim 9, characterized in that: The limiting member (32) comprises two power cylinders (33) arranged in the carriage, and the piston rod end surfaces of the two power cylinders (33) are provided with lifting rods (34), and the lifting rods (34) are provided with two limiting plates (35) at one end away from the power cylinders (33). A limiting ring (36) is provided on the carriage, and the limiting ring (36) corresponds to the lifting rods (34) one by one, and the lifting rods (34) move in the limiting ring (36).

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