A clamping walking device for a pipe girth weld automatic scanner

Abstract

The utility model relates to pipeline detection technical field, specifically disclose a kind of for pipeline girth weld automatic scanning device's clamping line walking device, including two groups of clamping mechanism hinged together, each group of clamping mechanism includes shell body, and the bottom of shell body is equipped with main clamping wheel and auxiliary clamping wheel;Main clamping wheel is rotatably connected with shell body, and auxiliary clamping wheel is rotatably connected on sliding block, and long strip slide groove of sliding cooperation with sliding block is set up on shell body, and the both sides of sliding block in shell body are equipped with support spring and electric push rod respectively.This utility model can electrically control the width of clamping space, facilitate its installation to guide rail, and after installation, it has the effect of elastic automatic clamping, improve the stability and reliability of clamping line walking device.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection technology, specifically a clamping and walking device for an automatic scanner for pipeline circumferential weld seams. Background Technology

[0002] Pipeline ring welding AUT inspection equipment is widely used in the inspection of various pipeline welds in industries such as petrochemicals and marine development. It has the advantages of high automation and intelligence, high inspection accuracy, and the ability to inspect the quality of welds on-site in real time.

[0003] Most commonly used pipe ring welding scanners are equipped with a quadrilateral clamping self-locking walking mechanism. The walking mechanism is clamped and moves on the guide rail by manual operation. After clamping, the tightness cannot be adjusted automatically. In practical applications, it has been found that the clamping reliability is insufficient, and the clamping force is prone to instability, causing the scanner to slip on the guide rail. The clamping rollers need to be installed manually, and the specific installation and fixing position depends on personal experience and continuous testing and adjustment. Therefore, it is highly dependent on manual labor, has low reliability, and poor adaptability. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a clamping and traveling device for an automatic pipe circumferential weld inspector. This device can electrically control the width of the clamping space, making it easy to install onto a guide rail. After installation, it has an elastic automatic clamping effect, improving the stability and reliability of the clamping and traveling device.

[0005] The technical solution of this utility model is: a clamping and walking device for an automatic scanner for pipe circumferential welds, comprising two sets of clamping mechanisms hinged together. Each clamping mechanism includes a housing, and the bottom of the housing is provided with a main clamping wheel and a secondary clamping wheel, and a clamping space for clamping the walking guide rail is formed between the main clamping wheel and the secondary clamping wheel. The main clamping wheel is rotatably connected to the outer shell, the auxiliary clamping wheel is rotatably connected to the slider, and the outer shell is provided with a long strip groove that slides with the slider. The width of the clamping space can be adjusted by sliding the slider. Inside the outer shell, a support spring is provided on one side of the slider to elastically support the movement of the slider and reduce the width of the clamping space. An electric push rod is provided on the other side. The telescopic end of the electric push rod contacts the slider and is used to drive the slider to move and increase the width of the clamping space. At least one of the two clamping mechanisms is equipped with a motor for driving the main clamping wheel to rotate.

[0006] Preferably, the clamping mechanism has a bracket on one side for mounting the scanner.

[0007] Preferably, the slider has upright plates on both sides, and the support spring and electric push rod are in contact with the upright plates on both sides respectively.

[0008] Preferably, the motor is mounted on the top of the housing, and the output shaft of the motor passes vertically through the housing and is connected to the main clamping wheel to be driven.

[0009] Preferably, the support springs are a set of replaceable springs of different lengths.

[0010] Compared with the prior art, this utility model has the following advantages: This utility model uses an electric push rod to move the slider, thereby adjusting the spacing between the main clamping wheel and the auxiliary clamping wheel, making it easier to load and unload them on the guide rail, and it is compatible with guide rails of different widths. In addition, the support spring provides elastic support to the slider, ensuring that the device maintains reliable clamping force at different positions along the guide rail and preventing slippage. Furthermore, the spring is replaceable, allowing for the selection of different springs to suit different guide rail specifications, thereby further guaranteeing sufficient clamping force. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 A schematic diagram of the structure with the top of the outer casing disassembled. Figure 4 Schematic diagram of the clamping mechanism Figure 1 ; Figure 5 Schematic diagram of the clamping mechanism Figure 2 ; In the diagram: 1. Clamping mechanism, 2. Motor, 3. Bracket, 4. Main clamping wheel, 5. Secondary clamping wheel, 6. Electric push rod, 7. Slider, 8. Support spring, 9. Outer shell, 10. Long strip slide, 11. Vertical plate, 12. Output shaft; Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0013] like Figure 1 and Figure 2 A clamping and traveling device for an automatic scanner for pipe circumferential weld seams includes two sets of clamping mechanisms 1, which are hinged together by hinges.

[0014] like Figures 3 to 5Each clamping mechanism 1 includes an outer shell 9. The bottom of the outer shell 9 is provided with a main clamping wheel 4 and a secondary clamping wheel 5. A clamping space for clamping the travel guide rail is formed between the main clamping wheel 4 and the secondary clamping wheel 5.

[0015] The main clamping wheel 4 is rotatably connected to the outer shell 9, and the secondary clamping wheel 5 is rotatably connected to the slider 7. The outer shell 9 has a long strip groove 10 that slides with the slider 7, and the width of the clamping space can be adjusted by sliding the slider 7.

[0016] At least one of the two clamping mechanisms 1 is also equipped with a motor 2 for driving the main clamping wheel 4 to rotate. The motor 2 is installed on the top of the housing 9, and the output shaft 12 of the motor 2 passes vertically through the housing 9 and is connected to the main clamping wheel 4 to be driven.

[0017] Inside the outer casing 9, a support spring 8 is provided on one side of the slider 7 to elastically support the movement of the slider 7 and reduce the width of the clamping space. On the other side, an electric push rod 6 is provided. The telescopic end of the electric push rod 6 contacts the slider 7 and is used to drive the slider 7 to move and increase the width of the clamping space.

[0018] Working principle: During operation, the electric push rods 6 of the two clamping mechanisms 1 are first extended, thereby driving the auxiliary clamping wheel 5 to move through the slider 7, increasing the distance between the main clamping wheel 4 and the auxiliary clamping wheel 5, thus increasing the clamping space and making it easier to place the device on the guide rail. After placement, control the electric push rod 6 to shorten. At this time, the slider 7 loses the support force of the electric push rod 6 and is pushed to move under the elastic reset action of the support spring 8, reducing the width of the clamping space, so that the main clamping wheel 4 and the auxiliary clamping wheel 5 cooperate to clamp on the guide rail. Furthermore, the support spring 8 provides elastic support to the slider 7, which can push the secondary clamping wheel 5 to fit tightly against the guide rail, forming an elastic clamping effect and preventing slippage during movement. Example 2

[0019] This embodiment is a further optimization based on the above embodiment, specifically: like Figures 1 to 5 The springs are replaceable. A set of springs of different lengths can be prepared, and different lengths of springs can be selected according to different specifications of guide rails, so as to have a more suitable elastic support effect and further ensure sufficient clamping force.

[0020] A bracket 3 is detachably connected to one side of the clamping mechanism, which facilitates the hanging and installation of the scanner.

[0021] The slider 7 has upright plates 11 on both sides, and the support spring 8 and electric push rod 6 are in contact with the upright plates 11 on both sides, which has a larger support surface and a more stable support effect.

[0022] This utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model, and the changed content still falls within the protection scope of this utility model.

Claims

1. A clamping and traveling device for an automatic inspector of pipe circumferential weld seams, characterized in that: It includes two sets of clamping mechanisms hinged together. Each set of clamping mechanisms includes a housing. The bottom of the housing is provided with a main clamping wheel and a secondary clamping wheel, and a clamping space for clamping the travel guide rail is formed between the main clamping wheel and the secondary clamping wheel. The main clamping wheel is rotatably connected to the outer shell, the auxiliary clamping wheel is rotatably connected to the slider, and the outer shell is provided with a long strip groove that slides with the slider. The width of the clamping space can be adjusted by sliding the slider. Inside the outer shell, a support spring is provided on one side of the slider to elastically support the movement of the slider and reduce the width of the clamping space, and an electric push rod is provided on the other side. The telescopic end of the electric push rod contacts the slider and is used to drive the slider to move and increase the width of the clamping space. At least one of the two clamping mechanisms is equipped with a motor for driving the main clamping wheel to rotate.

2. The clamping and traveling device for an automatic pipe circumferential weld inspector according to claim 1, characterized in that: The clamping mechanism has a bracket on one side for mounting the scanner.

3. The clamping and traveling device for an automatic pipe circumferential weld inspector according to claim 2, characterized in that: The slider has upright plates on both sides, and the support spring and electric push rod are in contact with the upright plates on both sides respectively.

4. The clamping and traveling device for an automatic pipe circumferential weld inspector according to claim 1, characterized in that: The motor is mounted on the top of the housing, and the output shaft of the motor passes vertically through the housing and is connected to the main clamping wheel to be driven.

5. The clamping and traveling device for an automatic pipe circumferential weld inspector according to claim 1, characterized in that: The support springs are a set of replaceable springs of different lengths.

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