Self-driven unwinding gun carrier special for factory prefabricating and folding HDPE lining pipe

Abstract

The utility model provides a self-driven unwinding gun carrier special for prefabricating a folding HDPE (high-density polyethylene) lining pipe in a factory. An unwinding driving device is constructed in the radial direction of a winding frame through an adjusting device; the unwinding driving device comprises a driving roller set used for driving the winding frame to rotate, at least one set of driving rollers in the driving roller set is connected with a rotating drive, and a roller set supporting frame of the driving roller set is connected with a driving roller supporting arm of the adjusting device. When the driving roller sets are driven by rotation, the unwinding frame abutting against the driving roller sets is driven to rotate, the lining pipe is continuously pushed out from the position between the two driving roller sets, then winding and unwinding of the lining pipe are achieved, compared with a manual winding and unwinding mode, time and labor are saved, and the workload is reduced; the adjusting drive of the adjusting device can drive the driving roller supporting arm to rotate in the radial direction of the unwinding frame so as to adjust the abutting degree of the driving roller set and the unwinding frame, then the rotating speed and the rotating state of the unwinding frame are adjusted, and the unwinding frame can be adjusted in time.

Description

Technical Field

[0001] The utility model relates to the technical field of unwinding gun carriages, in particular to a self-driving unwinding gun carriage specially used for factory-prefabricated folded HDPE liner pipes. Background Art

[0002] HDPE pipe is a high-density polyethylene pipe with many good properties and advantages, such as high corrosion resistance and wear resistance, high toughness and impact resistance, etc. It can be used for a long time without damage.

[0003] Trenchless pipeline repair refers to an online repair method adopted when the pipeline environment cannot be updated or repaired by excavation or when excavation of pipe sections is very uneconomical.

[0004] This online maintenance method involves inserting an HDPE liner into the pipeline, replacing the original pipeline's conveying function with the HDPE liner. Lowering the HDPE liner requires using a reel-out truck to transport the reel-out rack to the site and lower the pipe onto the truck.

[0005] Most of the existing pipe unwinding methods are achieved by manually pulling one end of the liner pipe, thereby driving the unwinding frame wrapped with the liner pipe to rotate. However, this method is time-consuming and labor-intensive, increases the workload, and is not easy to control the pipe unwinding speed. Utility Model Content

[0006] In view of this, the problem to be solved by the present invention is to provide a self-driven unwinding trolley specially used for factory-prefabricated foldable HDPE liner pipes.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A self-propelled unwinding trolley specially designed for factory-prefabricated folded HDPE lined pipes, wherein the unwinding drive device is constructed in the radial direction of the reel frame through an adjustment device;

[0009] The unwinding drive device includes a drive roller group for driving the reel frame to rotate, at least one drive roller group in the drive roller group is connected to a rotation drive, and a roller group support frame of the drive roller group is connected to the drive roller support arm of the adjustment device;

[0010] The regulating drive of the regulating device is used to drive the driving roller support arm to rotate along the radial direction of the unwinding frame to adjust the distance between the driving roller group and the unwinding frame.

[0011] The driving roller in the driving roller group is rotatably connected to the roller group support frame in the axial direction and one end of the driving roller is fixedly sleeved with a transmission gear;

[0012] The rotary drive is installed on the roller group support frame, and the output end thereof is fixedly sleeved with a driving tooth, and the driving tooth is meshed and connected with the transmission tooth.

[0013] The driving roller arm is rotatably connected to the arm support frame, and the adjustment drive is a driving cylinder II. The mounting seat and output end of the driving cylinder II are rotatably connected to the arm support frame and the driving roller arm respectively.

[0014] The unwinding frame is rotatably connected to the carrier platform of the unwinding gun carriage through the support arm and is overlapped with the carrier platform through the support arm support frame.

[0015] A compensation base is also constructed on the platform of the unwinding gun carriage; the support arm support frame is an N-shaped structure, with its two ends respectively connected to the two groups of support arms, and its bottom end overlapped on the compensation base.

[0016] The advantages and positive effects of the utility model are:

[0017] (1) At least one group of driving rollers in the driving roller group is connected to a rotary drive. When the driving roller group is driven by the rotary drive, it not only drives the unwinding frame abutting against it to rotate, but also enables the inner liner tube to be continuously pushed out from between the two groups of driving rollers, thereby realizing the retraction and deployment of the inner liner tube. Compared with the manual retraction and deployment method, it saves time and labor and reduces the workload.

[0018] (2) The adjustment drive of the adjustment device can drive the driving roller support arm to rotate along the radial direction of the unwinding frame to adjust the degree of contact between the driving roller group and the unwinding frame, and then adjust the rotation speed and rotation state of the unwinding frame, so that the unwinding frame can be adjusted in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is the overall structure diagram of a self-driven unwinding vehicle for factory-prefabricated foldable HDPE lined pipes;

[0021] Figure 2 yes Figure 1 An enlarged view of the driving roller set;

[0022] Figure 3 This is a schematic diagram of the unwinding rack after it is flipped over;

[0023] Figure 4 This is a factory-prefabricated, self-propelled unwinding trolley for folding HDPE lined pipes equipped with auxiliary support legs.

[0024] In the figure: unwinding frame 1, support arm 2, drive cylinder I21, carrier 3, compensation base 31, support arm support frame 4, drive roller support arm 51, drive roller group 52, roller group support frame 53, transmission gear 54, drive gear 55, reduction motor 56, drive cylinder II61, bearing 7, auxiliary support leg 8. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] like Figures 1 to 3 As shown, the utility model provides a self-driven unwinding trolley for factory-prefabricated folded HDPE liner pipes, and the unwinding drive device is constructed in the radial direction of the unwinding frame 1 through an adjusting device;

[0029] The unwinding drive device includes a driving roller group 52 for driving the unwinding frame 1 to rotate. The driving roller group 52 includes two groups of driving rollers arranged in parallel in the axial direction. The driving rollers can abut against the unwinding frame 1 in the axial direction. The liner tube on the unwinding frame 1 can be inserted between the two groups of driving rollers. At least one group of driving rollers in the driving roller group 52 is connected to a rotary drive. When the driving roller group 52 is driven by the rotary drive, it not only drives the unwinding frame 1 abutting therewith to rotate, but also causes the liner tube to be continuously pushed out from between the two groups of driving rollers, thereby realizing the retraction and release of the liner tube.

[0030] The roller group support frame 53 of the driving roller group 52 is connected to the driving roller support arm 51 of the adjusting device. The adjusting drive of the adjusting device is used to drive the driving roller support arm 51 to rotate along the radial direction of the unwinding frame 1 to adjust the distance between the driving roller group 52 and the unwinding frame 1 (that is, adjust the degree of tightness between the driving roller group 52 and the unwinding frame 1), and then adjust the rotation speed and rotation state of the unwinding frame 1. It can also prevent the unwinding frame 1 from rotating due to external force and prevent the inner liner tube in the unwinding frame 1 from expanding outward.

[0031] Specifically, the driving roller in the driving roller group 52 is rotatably connected to the roller group support frame 53 in the axial direction and a transmission tooth 54 is fixedly mounted on one end thereof. The rotary drive is installed on the roller group support frame 53. The rotary drive can adopt a reduction motor 56, and a driving tooth 55 is fixedly mounted on the output end thereof. The driving tooth 55 is meshed with the transmission tooth 54, and then the driving roller is driven to rotate axially through the reduction motor 56.

[0032] Specifically, the driving roller arm 51 is rotatably connected to the arm support frame 4, and the adjustment drive is a driving cylinder II61, and the mounting base and output end of the driving cylinder II61 are rotatably connected to the arm support frame 4 and the driving roller arm 51 respectively;

[0033] The driving roller arm 51 is driven to rotate along the arm support frame 4 by the extension and contraction of the driving cylinder II61, thereby adjusting the distance between the driving roller group 52 and the unwinding frame 1.

[0034] like Figure 1 and Figure 4 As shown, further, considering that the unwinding rack 1 has a large weight and the height of the unwinding trolley from the ground is large, the center of gravity of the unwinding rack 1 is too high, and it is easy to tip over during the unwinding operation, and the space on the trolley is limited, which is not convenient for workers to assist in the operation; therefore, in this application, the unwinding rack 1 is also designed to be flipped below the plane where the platform 3 of the unwinding trolley is located, thereby lowering the center of gravity of the unwinding rack 1.

[0035] Specifically, the unwinding frame 1 is rotatably connected to the platform 3 at the end of the unwinding gun carriage through the support arm 2 and overlapped with the platform 3 at the front end of the unwinding gun carriage through the support arm support frame 4, thereby realizing the normal placement of the unwinding frame 1 on the unwinding gun carriage;

[0036] Specifically, the rotating shaft of the unwinding frame 1 is connected to the support arm 2 through a bearing 7. One end of the support arm 2 is a C-shaped bayonet structure. The bearing 7 is clamped in the support arm 2. The mounting seat of the driving cylinder I21 is rotatably connected to the carrier 3. The output end of the driving cylinder I21 is rotatably connected to the support arm 2. Then, the support arm 2 connected to the unwinding frame 1 is driven to flip along the carrier 3 through the extension and retraction of the driving cylinder I21, so that the unwinding frame 1 can be moved to below the plane where the unwinding gun carriage is located by flipping, thereby lowering the center of gravity when releasing the tube.

[0037] Specifically, a compensation base 31 is also constructed on the platform 3 of the unwinding gun carriage; the compensation base 31 is used to provide height compensation for the overlap of the arm support frame 4. The arm support frame 4 is an N-shaped structure, and its two ends are respectively connected to the two groups of arms 2, and its bottom end is overlapped on the compensation base 31.

[0038] Furthermore, the unwinding trolley in the present application is provided with auxiliary support legs 8, which are evenly distributed on the front and rear sides of the unwinding trolley. When the unwinding frame 1 unwinds the tube or flips over, the auxiliary support legs 8 are in a propped-up state to improve the stability of the unwinding trolley.

[0039] Furthermore, the unwinding gun carriage in the present application adopts a tracked gun carriage, and the spacing between its two sets of tracks is adjustable, so that it can be applied to terrains of different widths.

[0040] The working principle and working process of this utility model are as follows:

[0041] Before unwinding the tube, the driving cylinder I21 is activated and extended to push the support arm 2 connected to the unwinding frame 1 to flip along the platform 3 until the unwinding frame 1 flips to the outside of the unwinding trolley, that is, it is located below the plane of the platform 3 of the unwinding trolley. This lowers the center of gravity of the unwinding frame 1 and also provides a wider auxiliary operation space for workers.

[0042] The driving roller arm 51 is driven to rotate along the arm support frame 4 by the extension and contraction of the driving cylinder II61, thereby adjusting the distance between the driving roller group 52 and the unwinding frame 1, that is, adjusting the degree of contact between the driving roller group 52 and the unwinding frame 1, and thus adjusting the rotation speed and rotation state of the unwinding frame 1;

[0043] When releasing the tube, the driving roller group 52 is driven by the reduction motor 56, which not only drives the unwinding frame 1 abutting against it to rotate, but also makes the inner liner tube continuously pushed out from between the two groups of driving rollers, thereby realizing the retraction and release of the inner liner tube.

[0044] The above embodiments of the present invention are described in detail. However, the above contents are only preferred embodiments of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. A factory-prefabricated, foldable HDPE liner pipe dedicated self-driven unwinding trolley, characterized in that: The unwinding drive device is constructed in the radial direction of the unwinding frame (1) through an adjusting device; The unwinding drive device comprises a driving roller group (52) for driving the unwinding frame (1) to rotate, at least one driving roller in the driving roller group (52) is connected to a rotation drive, and a roller group support frame (53) of the driving roller group (52) is connected to a driving roller support arm (51) of the adjustment device; The regulating drive of the regulating device is used to drive the driving roller support arm (51) to rotate along the radial direction of the unwinding frame (1) to adjust the distance between the driving roller group (52) and the unwinding frame (1).

2. The self-propelled unwinding trolley for factory-prefabricated foldable HDPE lined pipe according to claim 1 is characterized in that: The driving roller in the driving roller group (52) is rotatably connected to the roller group support frame (53) in the axial direction and one end of the driving roller is fixedly sleeved with a transmission gear (54); The rotary drive is installed on a roller group support frame (53), and a driving tooth (55) is fixedly sleeved on the output end thereof, and the driving tooth (55) is meshed and connected with the transmission tooth (54).

3. The self-propelled unwinding trolley for factory-prefabricated foldable HDPE lined pipe according to claim 2, characterized in that: The driving roller support arm (51) is rotatably connected to the support arm support frame (4), and the adjustment drive is a driving cylinder II (61). The mounting seat and output end of the driving cylinder II (61) are rotatably connected to the support arm support frame (4) and the driving roller support arm (51) respectively.

4. The self-propelled unwinding trolley for factory-prefabricated foldable HDPE lined pipe according to claim 3, characterized in that: The unwinding frame (1) is rotatably connected to the carrier platform (3) of the unwinding gun carriage through the support arm (2) and is overlapped with the carrier platform (3) through the support arm support frame (4).

5. The self-propelled unwinding trolley for factory-prefabricated foldable HDPE lined pipe according to claim 4, characterized in that: A compensation base (31) is also constructed on the platform (3) of the unwinding gun carriage; the support arm support frame (4) is an N-shaped structure, with its two ends respectively connected to the two groups of support arms (2), and its bottom end overlapped on the compensation base (31).

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