Pipe grab for oil pipeline with built-in conveying structure

By designing an oil pipeline gripper with a built-in conveying structure, utilizing boom support, gripper coordination, and hydraulic gripping mechanism, combined with lateral conveying and torque sensors, the side slippage problem during oil pipeline transportation has been solved, achieving automatic centering and stable conveying, and improving operational convenience and efficiency.

CN116513795BActive Publication Date: 2026-03-20HUAIYIN INSTITUTE OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-12
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing pipe-grabbing machines are difficult to effectively transport and adjust when transporting large-diameter oil pipelines, leading to pipeline slippage and detachment, and are also inconvenient to operate.

Method used

An oil pipeline gripping machine with a built-in conveying structure was designed, including a boom support mechanism, a gripping frame coordination mechanism, a hydraulic gripping mechanism, and a lateral conveying mechanism. Through the coordinated work of the conveying rollers and the coordination rollers, lateral adjustment and stable conveying are achieved, and the gripping position is automatically controlled by a torque sensor to ensure accurate positioning of the oil pipeline.

Benefits of technology

It improves the ease of operation and efficiency of oil pipeline transportation, prevents pipeline slippage and detachment, achieves automatic centering control, and enhances gripping performance and operational stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of oil pipeline grabbing machines, and discloses an oil pipeline grabbing machine with a built-in conveying structure, which comprises an arm support mechanism, a grabbing frame coordination mechanism, a hydraulic grabbing mechanism and a transverse conveying mechanism. In the process of conveying, placing and grabbing the oil pipeline, the oil pipeline grabbing machine with the built-in conveying structure can realize stable conveying through the cooperation of the conveying roller and the coordination roller, facilitates the stacking and subsequent oil pipeline connection and installation, improves the operation convenience and the oil pipeline conveying operation efficiency; after the oil pipeline grabbing machine grabs the oil pipeline, the controller receives the torque signal of the torque sensor, judges the position of the oil pipeline grabbed by the oil pipeline grabbing machine, automatically controls the conveying pipeline, realizes automatic control centering, and solves the problem of pipeline structure side slipping and separation.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil pipeline grabbing machine, and particularly relates to an oil pipeline grabbing machine with built-in conveying structure. BACKGROUND

[0002] The structure of the grabbing machine on the market in the transportation use, its operation process is to adopt the original hydraulic structure of the loader to cooperate with the grabbing structure to generate power, to clamp the large size caliber oil pipeline, to complete the clamping and fixing, and then to carry out short distance conveying, and in the conveying and placing of the oil pipeline, the driver needs to adjust the placing according to the length of the pipeline, if the grabbing position of the oil pipeline is not in the center, the weight of the two ends is not easy to control, and the pipeline structure is prone to side slip and separation, and in the placing, the oil pipeline needs to be adjusted in the grabbing process to facilitate the stacking and subsequent pipeline connection installation, and the existing grabbing structure does not have effective conveying adjustment function in the grabbing process, so that the driver needs to rely on the grabbing angle of the grabbing machine itself to adjust the placing position and the grabbing position of the oil pipeline in the process of clamping and conveying the oil pipeline and clamping and conveying the pipeline, which is very inconvenient. SUMMARY

[0003] The present application provides an oil pipeline grabbing machine with built-in conveying structure, which comprises an arm support mechanism, a grabbing frame cooperation mechanism, a hydraulic grabbing mechanism and a horizontal conveying mechanism, in the process of conveying and placing and grabbing the oil pipeline, the conveying roller and the cooperation roller work cooperatively to realize horizontal adjustment and stable conveying, facilitate stacking and subsequent pipeline connection installation, improve the operation convenience and the oil pipeline conveying operation efficiency; after grabbing the oil pipeline, the motor assembly and the controller receive the torque signal of the torque sensor, judge the position of the oil pipeline grabbed by the grabbing machine, automatically control the conveying pipeline, realize automatic control centering, and solve the problem of pipeline structure side slip and separation.

[0004] Technical scheme: the present application provides an oil pipeline grabbing machine with built-in conveying structure, which comprises a grabbing frame cooperation mechanism (2) and a hydraulic grabbing mechanism (3) matched with the grabbing frame cooperation mechanism (2); the grabbing frame cooperation mechanism (2) and the hydraulic grabbing mechanism (3) are both provided with a horizontal conveying mechanism (4), and the horizontal conveying mechanism (4) is used for conveying the oil pipeline.

[0005] Further, the horizontal conveying mechanism (4) comprises a conveying fitting frame (401), a transmission mechanism and a conveying roller (406) arranged on the conveying fitting frame (401), and the transmission mechanism controls the rotation of the conveying roller (406) on the conveying fitting frame (401).

[0006] Further, the transmission mechanism comprises a driving assembly, a controller (403), and a transmission chain belt (404) engaged with both ends of the conveying roller (406); the controller (403) controls the driving assembly to drive the transmission chain belt (404) to drive the conveying roller (406) synchronously.

[0007] Further, the transmission mechanism further comprises a same transmission shaft (402) arranged between the two transmission chain belts (404); the controller (403) controls the driving assembly to drive the transmission chain belt (404) and the same transmission shaft (402) to drive the conveying roller (406) synchronously.

[0008] Further, the conveying roller (406) is provided with a torque sensor (409) on the outer wall; the controller (403) controls the driving assembly to drive the transmission chain belt (404) to drive the conveying roller (406) to rotate after receiving the torque signal of the torque sensor (409).

[0009] Preferably, the outer wall of the conveying roller (406) is further provided with a protective rubber ring (407).

[0010] Further, the conveying roller (406) and the transmission chain belt (404) are further provided with a limiting shaft support (408).

[0011] Further, the grabbing frame coordination mechanism (2) comprises two groups of symmetrically arranged carrying grabbing frames (201) and coordination rollers (205) embedded in the inner walls of the bottom of the carrying grabbing frames (201).

[0012] Further, the carrying grabbing frame (201) has a "V" shape.

[0013] Further, the inner wall of the carrying grabbing frame (201) is provided with an anti-skid groove (203).

[0014] Further, the outer wall of the coordination roller (205) has a friction surface.

[0015] Further, the coordination roller (205) is rotationally connected with the carrying grabbing frame (201); the coordination roller (205) is synchronously conveyed and driven with the transverse conveying mechanism (4).

[0016] Further, the hydraulic grabbing mechanism (3) comprises two groups of symmetrically arranged grabbing hooks (303), and the transverse conveying mechanism (4) is arranged between the two groups of grabbing hooks (303); the two groups of grabbing hooks (303) are rotationally connected with the two groups of carrying grabbing frames (201), respectively.

[0017] Further, the two groups of the carrying clamping frames (201) are connected with reinforcing support rods (102);

[0018] And / or, the two groups of the clamping hooks (303) are connected with reinforcing rod frames (304);

[0019] And / or, the two groups of the clamping hooks (303) are rotatably connected with the two groups of the carrying clamping frames (201) through an installation frame (301) respectively.

[0020] Further, a pair of hydraulic rods (5) are further included, and the pair of the hydraulic rods (5) are fixed on the carrying clamping frames (201) respectively, and the telescopic rods are rotatably connected at the end of the installation frame (301) respectively.

[0021] Preferably, an arm support mechanism (1) is further arranged on the clamping frame cooperative mechanism (2), and the arm support mechanism (1) is used for supporting the clamping frame cooperative mechanism (2) to ensure the stability of the structure during the operation of the pipe grabbing machine.

[0022] Advantages: Compared with the prior art, the present application has the following specific advantages:

[0023] 1. The oil pipeline grabbing machine designed in the present application can realize horizontal transportation through the cooperation of the conveying roller and the cooperative roller during the conveying and clamping of the oil pipeline, so as to facilitate the stacking and subsequent pipeline connection and installation, and improve the operation convenience and the pipeline conveying efficiency.

[0024] 2. After the oil pipeline grabbing machine designed in the present application grabs the oil pipeline, the motor assembly and the controller receive the torque signal of the torque sensor, judge the position of the grabbed pipeline, and automatically control the movement of the pipeline, so as to realize automatic centering and prevent the pipeline structure from sliding off.

[0025] 3. The oil pipeline grabbing machine designed in the present application can effectively reinforce and support the clamping structure of the whole grabbing machine, improve the stability of the whole structure, and the reinforcing rod frame and the clamping frame cooperative mechanism are symmetrically distributed with triangular plates, which connect the rod frame and the carrying clamping frame through the triangular plates, maintain the stability of the structure, and improve the clamping performance and the use efficiency.

[0026] 4. The oil pipeline grabbing machine designed in the present application can clamp the oil pipeline to be grabbed through the "V" structure formed by the carrying clamping frame during the clamping and conveying of the oil pipeline, and the inner wall at the bottom of the carrying clamping frame is provided with a cooperative roller, which can be synchronous with the surface of the oil pipeline during the horizontal adjustment and conveying process of the grabbing machine cooperating with the horizontal conveying mechanism, so as to improve the adjustment stability and avoid friction, and achieve the horizontal adjustment and conveying stability of the oil pipeline.

[0027] 5. The oil pipeline pipe grabbing machine designed by the present application is connected with a reinforcing rod frame on the inner wall of the grabbing hook, so that the grabbing hook and the mounting frame form an integral whole, and the bottom end of the mounting frame is connected with a hydraulic rod, the hydraulic grabbing mechanism is kept in a rotating state with the mounted grabbing frame through a structure shaft, the grabbing and releasing control of the whole pipe grabbing machine can be realized through the hydraulic rod, and the operation and use are facilitated and the grabbing and fixing are stable. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 Fig. 1 is a perspective view of the three-dimensional structure of the oil pipeline pipe grabbing machine with built-in conveying structure and arm support mechanism of the present application;

[0029] Figure 2 Fig. 2 is a perspective view of the grabbing frame coordination mechanism of the oil pipeline pipe grabbing machine with built-in conveying structure of the present application;

[0030] Figure 3 Fig. 3 is a side view of the internal structure of the grabbing frame coordination mechanism of the oil pipeline pipe grabbing machine with built-in conveying structure of the present application;

[0031] Figure 4 Fig. 4 is a perspective view of the hydraulic grabbing mechanism of the oil pipeline pipe grabbing machine with built-in conveying structure of the present application;

[0032] Figure 5 Fig. 5 is a top view of the internal structure of the transverse conveying mechanism of the oil pipeline pipe grabbing machine with built-in conveying structure of the present application;

[0033] Figure 6 Fig. 6 is a side view of the local structure of the transverse conveying mechanism of the oil pipeline pipe grabbing machine with built-in conveying structure of the present application;

[0034] In the drawings: 1, arm support mechanism; 101, support frame; 102, reinforcing support rod; 103, triangular plate; 104, combined support arm; 2, grabbing frame coordination mechanism; 201, mounted grabbing frame; 202, anti-unhooking device; 203, anti-skid slot; 204, clamping layer; 205, coordination roller; 206, arc-shaped tooth line; 3, hydraulic grabbing mechanism; 301, mounting frame; 302, structure shaft; 303, grabbing hook; 304, reinforcing rod frame; 4, transverse conveying mechanism; 401, conveying fitting frame; 402, same-axis; 403, driving assembly, controller; 404, transmission chain belt; 405, gear shaft; 406, conveying roller; 407, protective rubber ring; 408, limiting shaft frame; 409, torque sensor; 5, hydraulic rod. DETAILED DESCRIPTION

[0035] The present application will be described in detail below in combination with the embodiments and drawings.

[0036] Embodiment 1

[0037] As Figure 1As shown, the oil pipeline grabbing machine with built-in conveying structure provided by the present application comprises a grabbing frame coordination mechanism 2, a hydraulic grabbing mechanism 3 arranged on the grabbing frame coordination mechanism 2, and a horizontal conveying mechanism 4 arranged on the grabbing frame coordination mechanism 2 and the hydraulic grabbing mechanism 3.

[0038] The grabbing frame coordination mechanism 2 is further provided with an arm support mechanism 1, as shown in the figure. Figure 1 As shown, the arm support mechanism 1 comprises a pair of reinforcing rod frames 102 arranged in parallel with each other, the reinforcing rod frames 102 are connected through two groups of combined support arms 104, two groups of support frames 101 are further connected to the reinforcing rod frames 102, the support frames 101 are fixedly connected with the reinforcing rod frames 102, and the reinforcing rod frames 102 are fixedly connected with the grabbing frame coordination mechanism 2; optionally, a triangular plate 103 is arranged at the connection position of the reinforcing rod frames 102 and the grabbing frame coordination mechanism 2, and the triangular plates 103 are symmetrically distributed along the fixed connection position of the reinforcing rod frames 102 and the grabbing frame coordination mechanism 2; in the grabbing structure of the pipeline grabbing machine, the reinforcing rod frames 102 are used for connection and support, the rod frames are connected through the combined support arms 104 to form an integrated structure, which can effectively reinforce and support the grabbing structure of the whole pipeline grabbing machine, improve the stability of the whole structure, the triangular plates 103 are symmetrically distributed at the fixed connection position of the two ends of the reinforcing rod frames 102 and the grabbing frame coordination mechanism 2, the reinforcing rod frames 102 and the grabbing frame 201 are connected through the triangular plates 103, and the stability of the structure is maintained while the grabbing performance and the use efficiency are improved.

[0039] The grabbing frame coordination mechanism 2 is as shown in the figure. Figures 2-3As shown, the grabbing frame coordination mechanism 2 includes two groups of symmetrically arranged carrying grabbing frames 201, which are in a "V" shape structure; the inner wall of the carrying grabbing frame 201 is provided with an anti-skid groove 203; the front end of the carrying grabbing frame 201 is provided with an anti-dropping hook 202; the bottom inner wall of the carrying grabbing frame 201 is embedded with a coordination roller 205; the outer wall of the coordination roller 205 has a friction surface, and optionally, the outer wall of the coordination roller 205 is a rough arc tooth line 206; the coordination roller 205 is rotationally connected with the carrying grabbing frame 201; and the coordination roller 205 is synchronously conveyed with the transverse conveying mechanism 4. Optionally, the bottom inner wall of the carrying grabbing frame 201 is provided with a clamping layer 204, the coordination roller 205 is embedded on the clamping layer 204, and the clamping layer 204 is embedded with manganese steel material. The carrying grabbing frames 201 are symmetrically distributed along the two sides of the arm support mechanism 1. When the grabbing machine is conveying the oil pipeline, the "V" shaped structure formed by the carrying grabbing frames 201 can clamp the oil pipeline to be grabbed, the friction force and the stable adhesion are improved by the combination of the hook structure and the anti-skid grooves 203 symmetrically arranged on the inner wall of the carrying grabbing frame 201, the clamping layer 204 embedded with manganese steel material arranged on the bottom inner wall of the "V" shaped structure of the carrying grabbing frame 201 can avoid the wear phenomenon and improve the strength after long-term use, and the coordination roller 205 arranged in the middle of the clamping layer 204 can be synchronously conveyed with the surface of the oil pipeline during the transverse adjustment and conveying process of the grabbing machine cooperating with the transverse conveying mechanism 4, and the arc tooth line 206 on the outer wall of the roller body can improve the adjustment stability and avoid friction, so as to achieve the functions of transverse adjustment and stable conveying of the oil pipeline.

[0040] The hydraulic grabbing mechanism 3 is as shown above Figure 4 The hydraulic grabbing mechanism 3 includes two groups of symmetrically arranged grabbing hooks 304, the grabbing hooks 304 are connected with the transverse conveying mechanism 4 and the reinforcing rod frame 305, and the transverse conveying mechanism 4 and the reinforcing rod frame 305 are parallel to each other; the lower end of the grabbing hook 304 is connected with the mounting frame 301, the middle part of the mounting frame 301 is provided with a structure shaft 302, the mounting frame 301 is rotationally connected with the carrying grabbing frame 201 through the structure shaft 302, the lower end of the mounting frame 301 is connected with the hydraulic rod 303, and the mounting frame 301 is connected with the grabbing frame coordination mechanism 2 through the hydraulic rod 303; the grabbing hook 304 is fixedly connected with the reinforcing rod frame 305 and the mounting frame 301, and the reinforcing rod frame 305 is connected between the two grabbing hooks 304, so that the grabbing hook 304 and the mounting frame 301 form an integral whole. A pair of hydraulic rods 5 are also fixed on the carrying grabbing frame 201, and the extension rods of the hydraulic rods 5 are rotationally connected with the end portions of one mounting frame 301. The grabbing hook 304 and the mounting frame 301 are in a rotating state with the carrying grabbing frame 201 through the structure shaft 302, and the overall grabbing machine can be controlled to be grabbed and released through the hydraulic rod 5, so as to facilitate operation and stable grabbing and fixing.

[0041] The transverse conveying mechanism 4 is as shown aboveFigures 5-6 As shown, the conveying fitting frame 401 is provided with a transmission mechanism and conveying rollers 406, and the transmission mechanism controls the transmission of the conveying rollers 406 on the conveying fitting frame 401. The transmission mechanism comprises a driving assembly, a controller 403 and a transmission chain belt 404 meshed with both ends of the conveying rollers 406; the transmission mechanism further comprises a same transmission shaft 402 symmetrically arranged between the two transmission chain belts 404, both ends of the same transmission shaft 402 are symmetrically provided with transmission gears meshed with the transmission chain belt 404, and the driving assembly and the controller 403 are also installed at both ends of the same transmission shaft 402. The conveying rollers 406 are arranged in parallel between the same transmission shaft 402. The axis of the conveying rollers 406 is a gear shaft 405, the outer wall of the conveying rollers 406 is provided with a protective rubber ring 407 and a torque sensor 409, the gear shaft 405, the conveying rollers 406 and the protective rubber ring 407 are coaxial shafts, the gear shaft 405 is meshed with the transmission chain belt 404, and a limiting shaft support 408 is further arranged between the conveying rollers 406 and the transmission chain belt 404. The conveying fitting frame 401 is fixedly connected between the grabbing frame cooperation mechanism 2 and the hydraulic clamping mechanism 3, and the horizontal conveying mechanism 4 is two groups, and the limiting shaft supports 408 are symmetrically distributed along both sides of the conveying rollers 406. When the oil pipe is grabbed and used by the pipe grabbing machine, the pipe grabbing machine can first be clamped and grabbed by the grabbing frame cooperation mechanism 2 and the hydraulic clamping mechanism 3, and then the two groups of conveying fitting frames 401 symmetrically arranged in the middle of the grabbing frame cooperation mechanism 2 and the hydraulic clamping mechanism 3 are also clamped and fitted with the surface of the oil pipe, and the pipe grabbing machine can be placed and clamped during the conveying process of the oil pipe, and the controller 403 symmetrically arranged at both ends of the conveying fitting frame 401 can be started, the controller 403 controls the driving assembly to drive the same transmission shaft 402 and the transmission chain belt 404 to synchronously transmit, and during the transmission process of the transmission chain belt 404, the tooth groove structure distributed on the inner wall of the transmission chain belt 404 drives the multiple groups of conveying rollers 406 meshed and distributed to adjust the conveying of the oil pipe along the horizontal direction of the oil pipe, and because the protective rubber ring 407 is arranged on the outer wall of the conveying rollers 406, the stability of the conveying process can be maintained, the position of the clamped oil pipe can be adjusted in the clamped state, the torque sensor 409 inputs a torque signal to the motor assembly and the controller 403, the torque of the conveying fitting frame 401 is not the same, and when the torque is the same and is offset, the midpoint of the grabbed pipe is selected, and the position of the pipe grabbing machine grabbing the oil pipe is judged, the controller outputs a signal to control the movement of the conveying pipe, facilitates the placement and stability in the process of placing or clamping, and improves the operation convenience and the efficiency of the oil pipe conveying operation.

[0042] The working principle of the oil pipeline grabbing machine with the built-in conveying structure is as follows: first, the grabbing machine can clamp and convey the oil pipeline through the "V" structure formed by the carrying grab frame 201, the hydraulic clamping mechanism 3 is in a rotating state with the carrying grab frame 201 through the structure shaft 302, the overall clamping and releasing of the grabbing machine can be controlled through the hydraulic rod 5, and the oil pipeline to be grabbed is clamped; in the design that the clamping layer 204 is embedded in the cooperative roller 205, the torque signal of the torque sensor 409 is matched, the position of the oil pipeline grabbed by the grabbing machine is judged, and the corresponding signal is output; the automatic control centering is realized by controlling the driving assembly to drive the transmission of the conveying roller 406 and the transmission chain belt 404 through the controller 403; the cooperative roller 205 can be synchronously conveyed and transmitted with the surface of the oil pipeline in the process of horizontal adjustment and conveying of the grabbing machine cooperating with the horizontal conveying mechanism 4; the arc tooth line 206 on the outer wall of the cooperative roller 205 is designed to improve the adjustment stability and avoid friction; in the process of conveying and clamping of the oil pipeline by the grabbing machine, the controller 403 symmetrically arranged at both ends of the conveying fitting frame 401 can be started to control the driving assembly to drive the conveying roller 406 and the transmission chain belt 404 to synchronously transmit; in the transmission process of the transmission chain belt 404, the tooth groove structure distributed on the inner wall of the transmission chain belt 404 can drive the multiple groups of conveying rollers 406 arranged in mesh to convey and adjust the oil pipeline along the horizontal direction of the oil pipeline, and the protective rubber ring 407 is arranged on the outer wall of the conveying roller 406, so that the fitting stability in the conveying process can be maintained, and the adjustment of the clamping position of the oil pipeline can be realized in the clamping state.

[0043] The above embodiments are only used to illustrate the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent transformation or modification according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A pipe gripping machine with a built-in conveying structure, comprising a gripping frame coordination mechanism (2) and a hydraulic gripping mechanism (3) configured in conjunction with the gripping frame coordination mechanism (2), characterized in that: Both the grabbing mechanism (2) and the hydraulic gripping mechanism (3) are equipped with a transverse conveying mechanism (4). The transverse conveying mechanism (4) is used to convey the oil pipe. The transverse conveying mechanism (4) includes a conveying bonding frame (401) and a transmission mechanism and a conveying roller (406) disposed on the conveying bonding frame (401). The transmission mechanism controls the conveying roller (406) to rotate on the conveying bonding frame (401). The transmission mechanism includes a drive assembly, a controller (403), and a transmission chain belt (404) meshing with both ends of the conveying roller (406); the controller (403) controls the drive assembly to drive the transmission chain belt (404) to drive, thereby driving the conveying roller (406) to drive synchronously. The transmission mechanism also includes a coaxial shaft (402), which is symmetrically arranged between the two transmission chains (404); the controller (403) controls the drive assembly to drive the transmission chains (404) and the coaxial shaft (402) to drive synchronously, thereby driving the conveyor rollers (406) to drive synchronously. A torque sensor (409) is provided on the outer wall of the conveying roller (406). After receiving the torque signal from the torque sensor (409), the controller (403) controls the drive assembly to drive the transmission chain belt (404) to rotate the conveying roller (406).

2. The pipeline gripping machine with a built-in conveying structure according to claim 1, characterized in that: The outer wall of the conveying roller (406) is also provided with a protective rubber ring (407). And / or, a limiting bracket (408) is also provided between the conveying roller (406) and the drive chain (404).

3. The pipeline gripping machine with a built-in conveying structure according to any one of claims 1 to 2, characterized in that: The grabbing frame coordination mechanism (2) includes two sets of symmetrically arranged grabbing frames (201) and coordination rollers (205) embedded in the bottom inner wall of the grabbing frames (201).

4. The pipeline gripping machine with a built-in conveying structure according to claim 3, characterized in that: The mounting frame (201) has a "V" shape; And / or, the inner wall of the mounting grab (201) is provided with anti-slip grooves (203). And / or, the outer wall of the cooperative roller (205) has a friction surface; And / or, the cooperating roller (205) is rotatably connected to the mounting gripper (201).

5. The pipeline gripping machine with a built-in conveying structure according to claim 3, characterized in that: The hydraulic gripping mechanism (3) includes two sets of symmetrically arranged gripping hooks (303), and a transverse conveying mechanism (4) is arranged between the two sets of gripping hooks (303); the two sets of gripping hooks (303) are rotatably connected to the two sets of mounting grippers (201).

6. The pipeline gripping machine with a built-in conveying structure according to claim 5, characterized in that: A reinforcing support rod (102) is connected between the two sets of mounting grabs (201); And / or, a reinforcing rod (304) is connected between the two sets of gripping hooks (303); And / or, the two sets of gripping hooks (303) are rotatably connected to the two sets of mounting grippers (201) via a mounting frame (301).

7. The pipeline gripping machine with a built-in conveying structure according to claim 6, characterized in that: It also includes a pair of hydraulic rods (5), which are respectively fixed on the mounting grab (201), and their telescopic rods are respectively rotatably connected to the end of one of the mounting frames (301).

Citation Information

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