Adjustable traction device suitable for large-diameter pipeline

Abstract

The utility model discloses an adjustable traction device suitable for a large-diameter pipeline, which belongs to the technical field of pipeline traction and comprises a plurality of traction mechanisms which are arranged into a circle and form a pipeline traction channel, and each traction mechanism is connected with an adjusting mechanism which is used for adjusting the distance between the traction mechanism and the center of the channel along the radial direction of the pipeline traction channel. Each traction mechanism comprises a power mechanism and a conveying mechanism driven by the power mechanism to move in the traction direction of the pipeline, the conveying faces of the conveying mechanisms are tightly attached to the surface of the pipeline, and the outer wall of the pipeline is clamped through friction force and conveyed in the traction direction at the same time. The large-diameter pipeline traction device can achieve stable clamping and conveying of large-diameter pipelines, the position of the traction mechanism can be rapidly adjusted in place to adapt to traction of pipelines of different sizes, and production conveying efficiency and automation level are improved.

Description

Technical Field

[0001] The utility model relates to a pipeline traction device, in particular to an adjustable traction device suitable for large-diameter pipelines. Background Art

[0002] During the pipeline production process, formed straight pipes need to be pulled and conveyed. For large-size pipes, diameters can reach up to 1200mm, weights can reach over 200kg / m, and production lines can reach over 70 meters in length. Due to the large diameter of the pipes, high pulling forces are required for extrusion. Furthermore, the pipes are heavy and have smooth outer surfaces. Conventional pulling devices cannot effectively grasp them, or may lack sufficient gripping force or stability.

[0003] In the prior art, Chinese utility model patent publication number CN207859445U discloses a pipe pulling machine, whose technical solution is as follows: a pipe pulling machine includes a No. 3 motor and a No. 4 motor, and a conveying device is respectively provided at the top, lower left side, and lower right side of the pipe. The conveying device includes a pair of rollers, a No. 1 motor, and a fixed bracket. The pair of rollers is fixed to the fixed bracket. The three conveying devices work simultaneously to convey the pipe, thereby increasing the contact area between the conveying device and the pipe, thereby reducing the squeezing of the pipe by the traction force. The provision of rubber blocks can reduce the squeezing of the pipe, thereby better protecting the pipe.

[0004] The pipe pulling machine in the above-mentioned patent has three conveying devices arranged around the pipe, which cannot be applied to the transportation of large-diameter pipes. Although the above-mentioned patent can adjust the relative positions of the three conveying devices according to the different diameters of the pipes, due to its unreasonable structural design, it can only adjust the distance between the left and right conveying devices during adjustment, resulting in an angular deviation between the transmission surface of the adjusted conveying device and the pipe surface and being unable to fit, resulting in the inability to quickly and stably clamp the pipe and stably pull and convey it. Utility Model Content

[0005] The utility model aims to solve the problems that the pipeline traction device in the prior art cannot adapt to large-diameter pipelines and has an unreasonable adjustment structure design. The utility model proposes an adjustable traction device suitable for large-diameter pipelines. The device can achieve stable clamping and transportation of large-diameter pipelines and can quickly adjust the position of the traction mechanism to adapt to the traction of pipelines of different sizes.

[0006] In order to achieve the above-mentioned utility model purpose, the technical solution of the utility model is as follows:

[0007] An adjustable traction device suitable for large-diameter pipelines is characterized in that it includes several traction mechanisms arranged in a circle to form a pipeline traction channel, each traction mechanism is connected to an adjustment mechanism for adjusting the distance between the traction mechanism and the center of the channel along the radial direction of the pipeline traction channel, each traction mechanism includes a power mechanism and a transmission mechanism driven by the power mechanism to move along the pipeline traction direction, the transmission surfaces of several of the transmission mechanisms are in close contact with the pipeline surface, relying on friction to clamp the outer wall of the pipeline and simultaneously transport it in the traction direction.

[0008] Furthermore, each traction mechanism is evenly distributed around the formed pipeline traction channel and is axially parallel to the pipeline traction channel.

[0009] Furthermore, the power mechanism is a servo motor or a stepper motor.

[0010] Furthermore, the transmission mechanism includes a synchronous pulley and a crawler conveyor belt pulled between the two synchronous pulleys. The synchronous pulley is connected to the power mechanism and rotates under the drive of the power mechanism, thereby driving the crawler conveyor belt to move in the traction direction.

[0011] Furthermore, the surface of the crawler conveyor belt that contacts the pipeline is evenly distributed with tooth-like protrusions and diagonal lines that increase friction.

[0012] Furthermore, the tooth-shaped protrusions are made of rubber.

[0013] Furthermore, the traction mechanism is arranged between two fixed vertical plates, and the fixed vertical plates are provided with through holes for accommodating the passage of pipelines.

[0014] Furthermore, both ends of the traction mechanism are connected to adjustment mechanisms, and the frame parts at both ends of the traction mechanism and the corresponding adjustment mechanisms are respectively fixed on corresponding fixed vertical plates.

[0015] Furthermore, the fixed vertical plate is provided with a track for use with the adjustment mechanism, and both ends of the traction mechanism are slidably connected to the corresponding track.

[0016] Furthermore, the adjustment mechanism is a linear drive motor or a telescopic electric cylinder.

[0017] The workflow of this utility model is as follows:

[0018] When the pipeline to be transported enters the pipeline traction channel formed by each traction mechanism, the adjusting mechanism is activated to adjust each traction mechanism radially along the pipeline traction channel until its conveying surface is in close contact with the pipeline surface. After the pipeline to be transported is stably clamped, the adjusting mechanism stops moving; then, the power mechanism of each traction mechanism is operated to drive the conveying mechanism and the pipeline to be transported in the traction direction.

[0019] In summary, the utility model has the following advantages:

[0020] 1. The traction device proposed in this utility model can stably clamp the pipe and transport it in the traction direction, and can quickly adjust the position of the traction mechanism to adapt to the traction of pipes of different sizes, thereby improving production and transportation efficiency and automation level;

[0021] 2. In the present invention, the power mechanism and regulating mechanism of each traction mechanism are connected to the controller, and synchronous regulation can be achieved through the controller instructions, thereby adjusting the pipeline traction direction, traction speed and the size of the traction pipeline;

[0022] 3. In the present invention, the adjustment mechanism can adjust the size of the pipeline traction channel enclosed by each traction mechanism, thereby adapting to the transportation of pipelines with different outer diameters. In addition, each adjustment mechanism is adjusted along the radial direction of the pipeline traction channel. After adjustment, the angle of contact between each traction mechanism and the pipeline surface will not be changed, so each traction mechanism can be quickly adjusted into place;

[0023] 4. In the present invention, each traction mechanism is evenly arranged around the pipeline traction channel, which can balance the force on the pipeline and improve the transportation stability;

[0024] 5. In the present invention, the friction between the conveying surface and the pipe surface can be increased by the tooth-shaped protrusions and the diagonal design of the crawler conveyor belt. The tooth-shaped protrusions are made of rubber material, which can protect the pipe surface from excessive wear.

[0025] 6. In the present invention, multiple traction devices connected end to end are built by fixing vertical plates, which can extend the pipeline traction distance;

[0026] 7. In the present invention, both ends of the traction mechanism are connected with an adjustment mechanism, which can realize synchronous and stable adjustment of the traction mechanism along the radial direction of the pipeline traction channel;

[0027] 8. In the present invention, a track is provided on the fixed vertical plate for use with the adjustment mechanism, which can reduce the friction resistance during radial adjustment of the traction mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a side view of the traction device of the utility model;

[0029] Figure 2 It is a front view of the traction device of the utility model.

[0030] In the picture:

[0031] 1. Traction mechanism, 101. Synchronous pulley, 102. Crawler conveyor belt, 2. Pipeline traction channel, 3. Adjustment mechanism, 4. Protrusion, 5. Track, 6. Vertical plate, 7. Through hole. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0035] In the description of this utility model, it should be noted that the terms "upper," "vertical," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0037] Example 1

[0038] As the most basic implementation method of this solution, the utility model provides an adjustable traction device suitable for large-diameter pipes, such as Figure 1As shown, the traction device includes a plurality of traction mechanisms 1 arranged in a circle to form a pipeline traction channel 2. The traction mechanisms 1 are evenly distributed around the pipeline traction channel 2 and are axially parallel to the pipeline traction channel 2.

[0039] The more traction mechanisms 1 there are, the higher the transport stability is, but this also increases the cost. The number can be increased or decreased according to actual production needs and economic considerations. The traction mechanisms 1 are evenly arranged around the pipeline traction channel 2 to balance the forces on the pipeline and improve transport stability.

[0040] Reference Figure 1 As shown, each traction mechanism 1 is connected to an adjustment mechanism 3 that radially adjusts the distance between the traction mechanism 1 and the center of the pipeline traction channel 2. In this solution, the adjustment mechanism 3 can adjust the size of the pipeline traction channel 2 enclosed by each traction mechanism 1, thereby accommodating the transportation of pipelines with different outer diameters. Furthermore, each adjustment mechanism 3 is radially adjustable along the pipeline traction channel 2, and adjustment does not change the contact angle between each traction mechanism 1 and the pipeline surface, thus enabling each traction mechanism 1 to be quickly adjusted into position.

[0041] The workflow of this utility model is as follows:

[0042] When the pipeline to be transported enters the pipeline traction channel 2 formed by each traction mechanism 1, the adjustment mechanism 3 is activated to radially adjust each traction mechanism 1 along the pipeline traction channel 2 until its transmission surface is in close contact with the pipeline surface. After the pipeline to be transported is stably clamped, the adjustment mechanism 3 stops moving; then, the power mechanism of each traction mechanism 1 is operated to drive the transmission mechanism and the pipeline to be transported in the traction direction.

[0043] The traction device proposed in the utility model can stably clamp the pipeline and transport it in the traction direction, and can quickly adjust the position of the traction mechanism to adapt to the traction of pipelines of different sizes, thereby improving the production and transportation efficiency and the level of automation; the power mechanism and the adjustment mechanism 3 of each traction mechanism 1 are connected to the controller, and synchronous regulation can be achieved through the controller instructions, thereby adjusting the pipeline traction direction, traction speed and adapting to the size of the traction pipeline.

[0044] Example 2

[0045] As a preferred embodiment, based on Example 1, this embodiment provides an adjustable traction device suitable for large-diameter pipes, which differs from Example 1 in that:

[0046] Each traction mechanism 1 includes a power mechanism and a conveying mechanism driven by the power mechanism to move along the traction direction of the pipeline. The conveying surfaces of several conveying mechanisms are in close contact with the pipeline surface, relying on friction to clamp the outer wall of the pipeline and convey it in the traction direction at the same time.

[0047] In this embodiment, the power mechanism is a servo motor or a stepper motor, and the transmission mechanism includes a synchronous pulley 101 and a crawler conveyor belt 102 pulled between two synchronous pulleys 101. The synchronous pulley 101 is connected to the power mechanism and rotates under the drive of the power mechanism, thereby driving the crawler conveyor belt 102 to move in the traction direction. Figure 2 As shown, only the upper and lower traction mechanisms are drawn in the figure.

[0048] Preferably, the surface of the crawler conveyor belt 102 in contact with the pipe is evenly distributed with tooth-like protrusions 4 and a diagonal pattern to increase friction. The tooth-like protrusions 4 are made of rubber. The tooth-like protrusions 4 and the diagonal pattern of the crawler conveyor belt 102 increase friction between the conveying surface and the pipe surface. The rubber material of the tooth-like protrusions 4 protects the pipe surface from excessive wear.

[0049] Example 3

[0050] As the best embodiment of the present invention, based on Example 2, this embodiment provides an adjustable traction device suitable for large-diameter pipes, which differs from Example 2 in that:

[0051] In this embodiment, the traction mechanism 1 is disposed between two fixed vertical plates 6, each of which is provided with a through hole 7 for accommodating the passage of the pipe. In actual production, the length of the traction mechanism 1 is limited, and multiple traction devices can be connected end to end using the fixed vertical plates 6 to extend the pipe traction distance.

[0052] The fixed vertical plate 6 serves as a base supporting the traction mechanism 1, enabling stable installation of the traction mechanism 1. In this embodiment, to achieve synchronous and stable adjustment of the traction mechanism 1 along the radial direction of the pipeline traction channel 2, the traction mechanism 1 is connected to an adjustment mechanism 3 at both ends. The frame portions at both ends of the traction mechanism 1 and the corresponding adjustment mechanisms 3 are respectively fixed to the corresponding fixed vertical plates 6.

[0053] Furthermore, to reduce frictional resistance during radial adjustment of the traction mechanism 1, a track 5 is provided on the fixed vertical plate 6 for use with the adjustment mechanism 3, and both ends of the traction mechanism 1 are slidably connected to the corresponding track 5. In this embodiment, the adjustment mechanism 3 can adopt a linear drive motor, a telescopic electric cylinder, or other linear drive device.

[0054] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention falls within the scope of protection of the present invention.

Claims

1. An adjustable traction device suitable for large diameter pipes, characterized in that: The invention comprises a plurality of traction mechanisms (1) arranged in a circle to form a pipeline traction channel (2), each traction mechanism (1) is connected to an adjustment mechanism (3) for adjusting the distance between the traction mechanism (1) and the channel center along the radial direction of the pipeline traction channel (2), and each traction mechanism (1) comprises a power mechanism and a transmission mechanism driven by the power mechanism to move along the pipeline traction direction, and the transmission surfaces of the plurality of transmission mechanisms are in close contact with the pipeline surface, and rely on friction to clamp the outer wall of the pipeline and simultaneously transport it in the traction direction.

2. The adjustable traction device for large-diameter pipes according to claim 1, characterized in that: The traction mechanisms (1) are evenly distributed around the formed pipeline traction channel (2) and are axially parallel to the pipeline traction channel (2).

3. The adjustable traction device for large-diameter pipes according to claim 1, characterized in that: The power mechanism is a servo motor or a stepping motor.

4. The adjustable traction device for large-diameter pipes according to claim 1 or 3, characterized in that: The transmission mechanism comprises a synchronous pulley (101) and a crawler conveyor belt (102) pulled between the two synchronous pulleys (101); the synchronous pulley (101) is connected to a power mechanism and rotates under the drive of the power mechanism, thereby driving the crawler conveyor belt (102) to move in a traction direction.

5. The adjustable traction device for large-diameter pipes according to claim 4, characterized in that: The surface of the crawler conveyor belt (102) in contact with the pipeline is evenly provided with tooth-shaped protrusions (4) and diagonal lines for increasing friction.

6. The adjustable traction device for large-diameter pipes according to claim 5, characterized in that: The tooth-shaped protrusion (4) is made of rubber.

7. The adjustable traction device for large-diameter pipes according to claim 1 or 2, characterized in that: The traction mechanism (1) is arranged between two fixed vertical plates (6), and the fixed vertical plates (6) are provided with through holes (7) for accommodating the passage of pipelines.

8. The adjustable traction device for large-diameter pipes according to claim 7, characterized in that: Both ends of the traction mechanism (1) are connected to adjustment mechanisms (3), and the frame parts at both ends of the traction mechanism (1) and the corresponding adjustment mechanisms (3) are respectively fixed on corresponding fixed vertical plates (6).

9. The adjustable traction device for large-diameter pipes according to claim 8, characterized in that: The fixed vertical plate (6) is provided with a track (5) for use with the adjustment mechanism (3), and both ends of the traction mechanism (1) are slidably connected to the corresponding track (5).

10. The adjustable traction device suitable for large-diameter pipelines according to claim 9, characterized in that: The adjusting mechanism (3) is a linear drive motor or a telescopic electric cylinder.

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