A noise-reducing pipe rack for oil drill pipe transportation

Abstract

This invention discloses a noise-reducing pipe rack for oil drill pipe transportation, belonging to the field of noise reduction technology. The noise-reducing pipe rack includes a support body, a conveying assembly, and multiple limiting assemblies. The support body includes a conveying surface at its top, which is inclined relative to a horizontal plane. The conveying assembly includes a conveyor chain mounted on the support body. The conveyor chain is a ring structure located below the conveying surface and can rotate around its axis. All limiting assemblies are mounted on the conveyor chain and include movable parts. When the limiting assemblies are located on the side of the conveyor chain closest to the conveying surface, at least a portion of the movable part is located above the conveying surface. The movable part engages with the drill pipe in the conveying direction of the conveying surface and is configured to move below the conveying surface under the pressure of the drill pipe between the movable part and the end point of the conveying process. This invention reduces the noise generated during drill pipe transportation by setting the movable part of the limiting assembly to engage with the drill pipe.

Description

Technical Field

[0001] This invention relates to the field of noise reduction technology, and in particular to a noise-reducing pipe rack for conveying oil drill pipe. Background Technology

[0002] When transporting oil drill pipes, the heavy weight of the drill pipes causes them to collide with each other, generating significant noise levels that can reach over 90 decibels. This severely impacts the working environment, the health of workers, and the lives of nearby residents. Summary of the Invention

[0003] The purpose of this application is to provide a noise-reducing pipe rack for oil drill pipe transportation, thereby solving the aforementioned technical problems existing in the prior art.

[0004] This application is implemented as follows: This application provides a noise-reducing pipe rack for conveying oil drill pipe, including a support body, a conveying assembly, and multiple limiting assemblies. The support body includes a conveying surface at its top. When the support body is installed in a preset position, the conveying surface is inclined relative to the horizontal plane, with the higher end of the conveying surface being the conveying start point and the lower end being the conveying end point. The conveying assembly includes a conveying chain installed on the support body. The conveying chain is a ring structure and is located below the conveying surface. The conveying chain can rotate around its axis, and the axis of the conveying chain is parallel to and perpendicular to the conveying direction of the conveying surface. All limiting assemblies are installed on the conveying chain. Each limiting assembly includes a movable part. When the limiting assembly is located on the side of the conveying chain closer to the conveying surface, at least a portion of the movable part is located above the conveying surface. The movable part engages with the drill pipe in the conveying direction of the conveying surface, and the movable part is configured to move below the conveying surface under the pressure of the drill pipe between the movable part and the conveying end point.

[0005] The technical solution provided in this application can achieve the following beneficial effects: In this application, after the support body is installed, the conveying surface of the support body is inclined, and the drill rod can roll from the conveying starting point to the conveying ending point under the action of gravity. The limiting component is installed on the conveyor chain and moves synchronously with the conveyor chain. At the same time, the movable part of the limiting component can cooperate with the drill rod to limit the moving speed of the drill rod. Multiple limiting components separate the drill rods and prevent the drill rods from colliding with each other during the conveying process. When the movable part moves to contact the drill rod between the movable part and the conveying ending point, the movable part will move downwards towards the conveying surface under the pressure of the drill rod, so that the drill rods on both sides of the movable part can make stable contact. Even if the drill rod is not conveyed in time after reaching the conveying ending point, the drill rods on both sides of the movable part can be arranged in an orderly manner on the conveying surface because the drill rods are in stable contact, avoiding the situation where the drill rods are stacked together, and also avoiding the situation where the drill rods accidentally fall and generate noise after being stacked. Attached Figure Description

[0006] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0007] Figure 1 This is a schematic diagram of the overall structure of the noise reduction tube rack provided in some embodiments of this application; Figure 2 This is a schematic diagram illustrating the cooperative use of a noise-reducing pipe rack and a drill pipe according to some embodiments of this application; Figure 3 This is a partial structural schematic diagram of the noise reduction tube rack provided in some embodiments of this application; Figure 4 This is a schematic diagram of the internal structure of the support body provided in some embodiments of this application; Figure 5 This application is about Figure 4 Detailed view of point A; Figure 6 This is a schematic diagram illustrating the cooperation between the transmission component and the limiting component provided in some embodiments of this application; Figure 7 This is a schematic diagram of the overall structure of the limiting component provided in some embodiments of this application. Figure 1 ; Figure 8 This is a partial structural schematic diagram of the limiting component provided in some embodiments of this application; Figure 9 This is a schematic diagram of the overall structure of the limiting component provided in some embodiments of this application. Figure 2 ; Figure 10 This is a schematic diagram of the overall structure of the limiting component provided in some embodiments of this application. Figure 3 ; Figure 11 This is a schematic diagram of the overall structure of the limiting component provided in some embodiments of this application. Figure 4 .

[0008] In the diagram: 100 - Support body, 110 - Conveying surface, 111 - Conveying start point, 112 - Conveying end point, 120 - Stop, 130 - Second pad, 200 - Conveying assembly, 210 - Conveying chain, 220 - Drive motor, 230 - Driving wheel, 240 - Driven wheel, 300 - Limiting assembly, 310 - Moving part, 311 - First locking element, 312 - Buffer pad, 313 - First pad, 320 - Mounting base, 330 - First reset element, 340 - Locking part, 341 - Second locking element, 342 - Abutting surface, 343 - Convex corner, 350 - Second reset element, 400 - Drill rod. Detailed Implementation

[0009] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0010] This application provides a noise-reducing pipe rack for oil drill pipe transportation, which can be referred to as [reference needed]. Figure 1 and Figure 2 As shown, the noise reduction tube rack includes a support body 100, a transmission assembly 200, and multiple limiting assemblies 300.

[0011] The support body 100 is the main component of the noise reduction pipe rack. The support body 100 includes a conveying surface 110 located at its top, which is used to convey the drill rod 400. When the support body 100 is installed in a preset position, the conveying surface 110 is inclined relative to the horizontal plane, with the higher end of the conveying surface 110 being the conveying start point 111 and the lower end being the conveying end point 112.

[0012] The preset position refers to the expected installation position of the support body 100. During installation, it is important to ensure that the conveying surface 110 is tilted after installation. This allows the drill rod 400 to roll towards the conveying endpoint 112 under its own weight, eliminating the need for external power to drive its movement and saving energy and costs. During conveying, the drill rod 400 moves along the conveying direction of the conveying surface 110, from the starting point 111 towards the ending point 112.

[0013] The conveying assembly 200 includes a conveyor chain 210 mounted on the support body 100. The conveyor chain 210 is a ring-shaped structure located below the conveying surface 110. The conveyor chain 210 is rotatable about its axis, which is parallel to the conveying surface 110 and perpendicular to the conveying direction of the conveying surface 110. All limiting assemblies 300 are mounted on the conveyor chain 210. Each limiting assembly 300 includes a movable portion 310. When the limiting assembly 300 is located on the side of the conveyor chain 210 closest to the conveying surface 110, at least a portion of the movable portion 310 is located above the conveying surface 110. (See reference...) Figure 3 As shown, the movable part 310 is limited to the drill rod 400 in the conveying direction of the conveying surface 110, and the movable part 310 is configured to move below the conveying surface 110 under the compression of the drill rod 400 between the movable part 310 and the conveying end point 112.

[0014] The limiting component 300 installed on the conveyor chain 210 moves synchronously with the conveyor chain 210. When the limiting component 300 moves to the side of the conveyor chain 210 close to the conveying surface 110, the limiting component 300 engages with the drill rod 400. After the limiting component 300 moves from the conveying start point 111 of the conveying surface 110 to the conveying end point 112, the limiting component 300 moves to the side of the conveyor chain 210 away from the conveying surface 110, and then returns to the position of the conveying start point 111 of the conveying surface 110.

[0015] With the movable part 310 of the limiting assembly 300 positioned above the conveying surface 110, the drill rod 400 rolls along the conveying surface 110 in the direction from the starting point 111 to the ending point 112. The movable part 310 is located on the conveying path of the drill rod 400. As the drill rod 400 continues to roll along the conveying surface 110, it comes into contact with the movable part 310, which prevents the drill rod 400 from rolling further, reducing its kinetic energy. Multiple limiting assemblies 300 separate multiple drill rods 400, preventing collisions between them during conveying.

[0016] Furthermore, the movable part 310 can move below the conveying surface 110 under the pressure of the drill rod 400. After the movable part 310 moves downward, the drill rods 400 on both sides of the movable part 310 can make smooth contact. Specifically, the drill rod 400 on the side of the movable part 310 near the conveying start point 111 is in a limiting fit with the movable part 310, and its moving speed is controlled by the movable part 310. The speed of the drill rod 400 is controlled by controlling the conveying speed of the conveyor chain 210 to avoid the drill rod 400 moving too fast and having too much kinetic energy. The position of the drill rod 400 on the side of the movable part 310 near the conveying end point 112 remains almost unchanged, or has only a small speed. After the movable part 310 is pressed downward, the drill rods 400 on both sides of the movable part 310 can make smooth contact, avoiding the occurrence of large noise.

[0017] Additionally, if drill rod 400 at the delivery endpoint 112 cannot be delivered to the next process in time, please refer to... Figure 2 As shown, since the drill rods 400 on both sides of the movable part 310 are in stable contact, multiple drill rods 400 can be arranged in an orderly manner on the conveying surface 110, which can avoid the situation where the drill rods 400 are stacked together. At the same time, it also avoids the risk or noise caused by the stacked drill rods 400 falling accidentally. It also makes it easier to convey the orderly arranged drill rods 400 to the next process.

[0018] The conveyor chain 210 can be installed outside or inside the support body 100. When the conveyor chain 210 is installed inside the support body 100, the support body 100 can protect the conveyor chain 210 to prevent external factors from affecting the normal rotation of the conveyor chain 210.

[0019] In some preferred embodiments, the side of the conveyor chain 210 closest to the conveying surface 110 is arranged parallel to the conveying surface 110, ensuring that the distance by which the movable part 310 protrudes from the conveying surface 110 on this side is stable, and that the movable part 310 can stably limit and cooperate with the drill rod 400. The range of the conveyor chain 210 should cover the conveying surface 110 as much as possible, covering the conveying path of the drill rod 400.

[0020] In some embodiments provided in this application, reference may be made to Figure 7 and Figure 9 As shown, the limiting assembly 300 also includes a mounting base 320 and a first reset member 330. The mounting base 320 is fixed to the conveyor chain 210 and moves synchronously with the conveyor chain 210. The movable part 310 is rotatably connected to the mounting base 320, and the first reset member 330 is connected between the movable part 310 and the mounting base 320. The movable part 310 can rotate toward the mounting base 320 under the pressure of the drill pipe 400, and the first reset member 330 is used to drive the movable part 310 to rotate away from the mounting base 320.

[0021] After the movable part 310 is pressed below the conveyor surface 110 by the drill rod 400, it cannot reset due to the limitation of the drill rod 400. As the limiting component 300 continues to move with the conveyor chain 210, after the limiting component 300 separates from the drill rod 400, the movable part 310 resets under the drive of the first reset component 330, making it convenient to cooperate with the drill rod 400 again.

[0022] In some preferred embodiments, the limiting component 300 further includes a locking part 340 and a second reset member 350, as can be referred to Figure 7As shown, the locking part 340 is rotatably connected to the mounting base 320, and the second reset member 350 is connected between the locking part 340 and the mounting base 320. (See reference...) Figure 4 and Figure 5 As shown, the bracket body 100 is also equipped with a stop part 120, which is located on the moving path of the locking part 340.

[0023] As the movable part 310 rotates toward the mounting base 320, it locks with the locking part 340, fixing its position. Even if the limiting component 300 separates from the drill rod 400, the movable part 310 cannot be reset by the first reset component 330. With this structure, the position of the movable part 310 remains stable, preventing the position of the drill rod 400 from changing when the limiting component 300 is not separated from the drill rod 400, thus avoiding collisions between drill rods 400.

[0024] As the locking part 340 moves along with the conveyor chain 210, the stop part 120 contacts the locking part 340 and drives the locking part 340 to rotate, so that the locking part 340 disengages from the movable part 310. When the locking part 340 disengages from the stop part 120, the locking part 340 resets under the drive of the second reset member 350.

[0025] The stop part 120 is on the moving path of the locking part 340. As the locking part 340 moves with the conveyor chain 210, it contacts the stop part 120. Simultaneously, the locking part 340 continues to move with the conveyor chain 210. The interaction force between the stop part 120 and the locking part 340 drives the locking part 340 to rotate relative to the mounting base 320, changing the relative position of the locking part 340 and the mounting base 320 to ensure that the limiting locking part 340 can move with the conveyor chain 210. After the locking part 340 rotates, the locking state between the locking part 340 and the movable part 310 is released. The movable part 310 resets under the drive of the first reset member 330, and the locking part 340 and the movable part 310 disengage. As the conveyor chain 210 rotates, the locking part 340 continues to rotate until it separates from the stop part 120, at which point the locking part 340 resets under the drive of the second reset member 350. For example, the first reset member 330 and the second reset member 350 can be spring structures.

[0026] For reference Figure 7 As shown, the locking part 340 includes a protruding corner 343, which is used to contact the stop part 120. The stop part 120 directly acts on the protruding corner 343 to drive the locking part 340 to rotate relative to the mounting base 320.

[0027] During the transmission process of the conveyor chain 210, the movable part 310 and the locking part 340 of the limiting component 300 automatically separate and automatically reset, so that the conveyor chain 210 can rotate the limiting component 300 to the conveying starting point 111 and continue to cooperate with the drill rod 400.

[0028] In some embodiments, the movable part 310 is provided with a first locking member 311, and the locking part 340 is provided with a second locking member 341. The first locking member 311 is used to lock into the second locking member 341. Exemplarily, the first locking member 311 and the second locking member 341 can be configured as a hook structure, which can be hooked together when brought close to each other to lock the movable part 310 and the locking part 340. The first locking member 311 and the second locking member 341 can also be a magnetic structure, locking together through magnetic attraction. The first locking member 311 and the second locking member 341 can also be snap-fitted together, or have other detachable connection structures; no specific limitations are made in this embodiment.

[0029] In some specific embodiments, the first locking member 311 is a columnar structure, the second locking member 341 is a grooved structure, and the locking part 340 is also provided with an abutment surface 342 that contacts the first locking member 311, as can be seen from the following description. Figure 7 and Figure 8 As shown, during the rotation of the movable part 310 toward the mounting base 320, the first locking member 311 presses against the abutment surface 342. As the movable part 310 continues to rotate, it can drive the locking part 340 to rotate, thereby causing the first locking member 311 to slide relative to the abutment surface 342, sliding into the second locking member 341 and locking with it. The locking process can be referred to... Figures 9 to 11 As shown.

[0030] After the first locking member 311 slides into the second locking member 341, it separates from the abutment surface 342. The locking part 340 rebounds under the drive of the second reset member 350, thereby realizing the locking engagement between the second locking member 341 and the first locking member 311, and the first locking member 311 is stably engaged in the second locking member 341.

[0031] In some preferred embodiments, a buffer pad 312 is mounted on one side of the movable part 310, and a first pad 313 is mounted on the other side, as can be seen from [reference]. Figure 7As shown. With at least a portion of the movable part 310 positioned above the conveying surface 110, the buffer pad 312 faces the conveying start point 111, and the first pad 313 faces the conveying end point 112. The buffer pad 312 can reduce the collision effect between the drill rod 400 and the movable part 310 during conveying, and reduce the kinetic energy generated by the drill rod 400 during conveying. For example, the buffer pad 312 can be made of urethane rubber. The first pad 313 can prevent the drill rod 400 from directly contacting the movable part 310, avoiding friction caused by direct contact between the movable part 310 and the drill rod 400, which could lead to wear on the movable part 310 or the drill rod 400. The first pad 313 can be made of a wear-resistant material. At the same time, the first pad 313 can also have a certain cushioning effect, reducing the noise generated when the drill rod 400 collides with the movable part 310.

[0032] In some preferred embodiments of this application, a second pad 130 can also be installed on the conveying surface 110. The second pad 130 can prevent the drill rod 400 from directly contacting the conveying surface 110. At the same time, the second pad 130 has a certain buffering effect, which can reduce the noise generated by the drill rod 400 during the conveying process, further reducing the noise generated by the drill rod 400 during the conveying process. In addition, the second pad 130 is made of flexible material, which can reduce or even avoid damage to the outer peripheral wall of the drill rod 400 during the movement, prevent scratches from appearing on the outside of the drill rod 400, and maintain the integrity of the surface structure of the drill rod 400.

[0033] In some embodiments provided in this application, the conveying assembly 200 further includes a drive motor 220, a driving wheel 230, and a driven wheel 240, as can be referred to. Figure 4 As shown, both the driving wheel 230 and the driven wheel 240 are rotatably mounted on the support body 100. The conveyor chain 210 is sleeved on the driving wheel 230 and the driven wheel 240. The drive motor 220 is connected to the driving wheel 230 and is used to drive the driving wheel 230 to rotate, thereby driving the conveyor chain 210 to rotate.

[0034] The drive motor 220 controls the transmission speed of the conveyor chain 210, thereby controlling the moving speed of the limit assembly 300 and the transmission speed of the drill rod 400. Reducing the transmission speed of the drill rod 400 ensures smoother contact between the drill rods 400 on both sides of the movable part 310 when the movable part 310 moves below the conveying surface 110. The number of driven wheels 240 can be set to one, two or more. Multiple driven wheels 240 can improve the transmission stability of the conveyor chain 210 and prevent the position of the conveyor chain 210 that is not in contact with the driving wheel 230 or the driven wheel 240 from collapsing towards the middle, affecting the relative position of the moving part 310 and the conveying surface 110, and causing the moving part 310 to be unable to block and limit the drill rod 400.

[0035] In some embodiments, two support bodies 100 are provided, arranged side by side, as can be referred to. Figure 1 As shown, the conveying surfaces 110 of the two support bodies 100 are coplanar. The drill rod 400 is supported and conveyed on the two support bodies 100. The support bodies 100 provide better support for the drill rod 400, and the conveying process of the drill rod 400 is also more stable, preventing the drill rod 400 from tilting downwards due to its excessive length. The coplanarity of the two conveying surfaces 110 means that the two conveying surfaces 110 are on the same plane. Since the conveying surfaces 110 are inclined relative to the horizontal plane after the support bodies 100 are installed, it is necessary to ensure that the two conveying surfaces 110 are coplanar to prevent the drill rod 400 from tilting towards one of the conveying surfaces 110 during conveying, ensuring that the drill rod 400 can move stably along the inclined direction of the conveying surface 110.

[0036] Each support body 100 is connected to a conveyor chain 210, and each conveyor chain 210 is connected to a limit component 300. Each conveying surface 110 has a limit component 300 that works with the drill rod 400 to limit the position of the drill rod 400 and ensure that the drill rod 400 is conveyed smoothly.

[0037] In the case where the conveying assembly 200 also includes a drive motor 220, a driving wheel 230, and a driven wheel 240, each support body 100 is rotatably connected to the driving wheel 230 and the driven wheel 240. (See reference...) Figure 1 As shown, the conveyor chain 210 is sleeved outside the drive wheel 230 and the driven wheel 240. The drive motor 220 is located between the two support bodies 100. The drive motor 220 is connected to both drive wheels 230 at the same time, and drives the two drive wheels 230 to rotate synchronously, so that the conveying speed of the conveyor chain 210 corresponding to the two support bodies 100 is consistent, ensuring the smooth operation of the drill rod 400.

[0038] In some specific embodiments, a motor support base is provided between the two support bodies 100. The motor support base is used to install the drive motor 220, and the drive motor 220 is connected to two drive wheels 230 through a universal coupling.

[0039] Conveyor chain 210 can be configured with a chain structure; please refer to [reference needed]. Figure 6As shown, both the driving wheel 230 and the driven wheel 240 adopt a sprocket structure. The transmission chain 210 meshes with the driving wheel 230 and the driven wheel 240, which can reduce or even avoid the probability of slippage between the transmission chain 210 and the driving wheel 230 and the driven wheel 240, thereby improving the accuracy of controlling the movement speed of the drill pipe 400. Moreover, the transmission chain 210 of the chain structure is composed of multiple sections. When the transmission chain 210 is connected to the limiting component 300, the limiting component 300 is fixed to one of the sections of the transmission chain 210, reducing the influence of the limiting component 300 on the transmission of the transmission chain 210, especially during the reversing process of the transmission chain 210.

[0040] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0041] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A noise-reducing pipe rack for conveying oil drill pipe, characterized in that, include: The support body includes a conveying surface located on its top. When the support body is installed in a preset position, the conveying surface is inclined relative to the horizontal plane. The higher end of the conveying surface is the conveying start point, and the lower end is the conveying end point. The conveying assembly includes a conveying chain mounted on the main body of the support. The conveying chain is a ring structure and is located below the conveying surface. The conveying chain is rotatable about its axis, and the axis of the conveying chain is parallel to the conveying surface and perpendicular to the conveying direction of the conveying surface. Multiple limiting components are provided, all of which are mounted on the conveyor chain. Each limiting component includes a movable part. When the limiting component is located on the side of the conveyor chain closer to the conveying surface, at least a portion of the movable part is located above the conveying surface. The movable part engages with the drill pipe in the conveying direction of the conveying surface and is configured to move below the conveying surface under the compression of the drill pipe between the movable part and the conveying end point. The limiting assembly further includes a mounting base and a first reset member. The mounting base is fixed to the conveyor chain. The movable part is rotatably connected to the mounting base. The first reset member is connected between the movable part and the mounting base. The movable part can rotate toward the mounting base under the pressure of the drill rod. The first reset member is used to drive the movable part to rotate away from the mounting base. The limiting component further includes a locking part and a second reset member. The locking part is rotatably connected to the mounting base, and the second reset member is connected between the locking part and the mounting base. The bracket body is also equipped with a stop part, which is located on the movement path of the locking part. During the rotation of the movable part toward the mounting base, the movable part locks with the locking part. During the movement of the locking part following the conveyor chain, the stop part contacts the locking part and drives the locking part to rotate, so that the locking part disengages from the movable part. When the locking part disengages from the stop part, the locking part resets under the drive of the second reset member. The movable part is provided with a first locking member, and the locking part is provided with a second locking member, wherein the first locking member is used to lock and engage with the second locking member; The first locking member is a columnar structure, the second locking member is a grooved structure, and the locking part is also provided with an abutting surface that contacts the first locking member; As the movable part rotates toward the mounting base, the first locking member presses against the abutting surface to drive the locking part to rotate, thereby causing the first locking member to slide relative to the abutting surface to slide into the second locking member and lock with the second locking member.

2. The noise-reducing pipe rack for oil drill pipe conveying according to claim 1, characterized in that, A cushioning pad is installed on one side of the movable part, and a first pad is installed on the other side; With at least a portion of the active part located above the conveying surface, the buffer pad faces the conveying start point, and the first pad faces the conveying end point.

3. The noise-reducing pipe rack for oil drill pipe conveying according to claim 1, characterized in that, The conveying assembly also includes a drive motor, a drive wheel, and a driven wheel. The drive wheel and the driven wheel are rotatably mounted on the support body. The conveying chain is sleeved on the drive wheel and the driven wheel. The drive motor is connected to the drive wheel and is used to drive the drive wheel to rotate, thereby driving the conveying chain to rotate.

4. The noise-reducing pipe rack for oil drill pipe conveying according to claim 1, characterized in that, The support body has two main bodies, which are arranged side by side. The conveying surfaces of the two support bodies are coplanar. Each support body is connected to the conveyor chain, and each conveyor chain is connected to the limiting component.

5. A noise-reducing pipe rack for conveying oil drill pipe according to claim 4, characterized in that, Each of the bracket bodies is rotatably connected to a driving wheel and a driven wheel, and the transmission chain is sleeved on the driving wheel and the driven wheel; The conveying assembly also includes a drive motor located between the two support bodies and connected to both drive wheels.

6. The noise-reducing pipe rack for oil drill pipe conveying according to claim 1, characterized in that, The conveyor chain is installed inside the support body.

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