A bearing steel pipe roundness detection device

By introducing a drive rotation component and an adjustment fixing device into the steel pipe inspection device, combined with multiple dial indicators, the problems of low inspection efficiency and uncertain accuracy of existing equipment are solved, and efficient and accurate multi-point inspection is achieved.

CN224327681UActive Publication Date: 2026-06-05SUZHOU SHUNTONG BEARING STEEL TUBE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU SHUNTONG BEARING STEEL TUBE TECH CO LTD
Filing Date
2025-07-30
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing steel pipe testing equipment has low testing efficiency and uncertain testing accuracy, and cannot guarantee verticality and precision.

Method used

A bearing steel tube roundness detection device was designed, which adopts a drive rotation component and an adjustment and fixing device, combined with multiple dial indicators to achieve multi-point detection and precise positioning.

Benefits of technology

It improves the efficiency and accuracy of steel pipe inspection, is applicable to steel pipes of different diameters, and ensures inspection accuracy and verticality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224327681U_ABST
    Figure CN224327681U_ABST
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Abstract

The utility model relates to steel pipe detection equipment technical field, concretely is a kind of bearing steel pipe roundness detection device. Including workbench, workbench upper portion is provided with drive rotating component, drive rotating component back side is fixedly provided with fixed frame, and the front side of fixed frame is provided with the adjusting and fixing device of being able to adjust fixedly before and after, and a plurality of micrometers are detachably fixed on the adjusting and fixing device, and the adjusting and fixing device includes first sliding rod, second sliding rod and connecting rod, and first sliding rod and second sliding rod are respectively through fixed frame and are slidably connected with fixed frame, and micrometer is detachably fixed on connecting rod, and fixed frame is also provided with locking bolt for fixing first sliding rod and second sliding rod with fixed frame. It can detect multiple detection points on steel pipe, and can guarantee detection accuracy simultaneously.
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Description

Technical Field

[0001] This utility model relates to the technical field of steel pipe testing equipment, specifically a bearing steel pipe roundness testing device. Background Technology

[0002] The steel pipe standard specifies the allowable index for roundness, therefore it is necessary for steel pipe manufacturers to test the ovality of the steel pipes after production is completed.

[0003] Traditional testing equipment, such as the steel pipe ovality testing device disclosed in CN219474509U, includes a measuring body and a measuring dial indicator. The measuring body is C-shaped, with a slider and a fixed block at one end of the lower part of the measuring body. The fixed block is fixedly mounted on the measuring body, and the slider is slidably mounted inside the fixed block. The fixed block is equipped with a lifting mechanism for driving the slider to move up and down. The upper end of the slider is rotatably equipped with a roller that abuts against the outer circle of the steel pipe to be tested. The lower end of the measuring dial indicator passes through the upper part of the measuring body and abuts against the outer circle of the steel pipe to be tested at this end. The inner side of the middle part of the measuring body is provided with an abutment joint that abuts against the outer circle of the steel pipe to be tested.

[0004] When using the above-mentioned equipment, it is necessary to manually insert the equipment into different detection points on the steel pipe multiple times for detection, which results in low detection efficiency. During the detection process, it is necessary to ensure that the detection equipment is perpendicular to the steel pipe, and there is uncertainty in the detection process, making it impossible to guarantee detection accuracy. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the aforementioned problems in the prior art, this utility model provides a bearing steel pipe roundness detection device that can detect multiple detection points on the steel pipe while ensuring detection accuracy.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] A bearing steel pipe roundness testing device includes a worktable, a drive rotation assembly mounted above the worktable, a fixed frame fixedly mounted on the back side of the drive rotation assembly, and an adjusting and fixing device on the front side of the fixed frame that can be adjusted and fixed back and forth. Several dial indicators are detachably and fixedly mounted at equal angles on the adjusting and fixing device. The adjusting and fixing device includes a first slide rod, a second slide rod, and a connecting rod. The first and second slide rods respectively pass through the fixed frame and are slidably connected to it. The dial indicators are detachably fixed to the connecting rod. The fixed frame also has locking bolts for fixing the first and second slide rods to the fixed frame. This device can test multiple points on the steel pipe while ensuring testing accuracy.

[0010] Preferably, the drive rotation assembly includes a rotating rod, a support block, a rotating roller, and a drive mechanism.

[0011] Preferably, the drive mechanism includes a motor, a belt, and a pulley.

[0012] (III) Beneficial Effects

[0013] This utility model provides a device for detecting the roundness of bearing steel tubes. It has the following beneficial effects:

[0014] (1) Multiple dial gauges set at equal intervals can be used to test multiple test points on the steel pipe. Compared with single-point testing, the equipment needs to be re-inserted into the outer wall of the steel pipe after each test, which greatly improves the testing efficiency.

[0015] (2) By adjusting the use of the fixing device, it can be applied to the detection of different steel pipes, while ensuring the detection accuracy. Attached Figure Description

[0016] Figure 1 This is the structure of the present utility model.

[0017] In the diagram: 1. Workbench; 2. Drive rotation assembly; 3. Fixing frame; 4. Adjustment and fixing device; 5. Dial indicator; 401. First slide rod; 402. Second slide rod; 403. Connecting rod; 6. Locking bolt; 201. Rotating rod; 202. Support block; 203. Rotating roller; 204. Drive mechanism; 2041. Motor; 2042. Belt; 2043. Pulley. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1As shown, the bearing steel pipe roundness testing device of this embodiment includes a worktable 1, a drive rotation assembly 2 above the worktable 1, a fixed frame 3 fixedly mounted on the back side of the drive rotation assembly 2, and an adjusting and fixing device 4 that can be adjusted and fixed back and forth on the front side of the fixed frame 3. Several dial indicators 5 are detachably fixed at equal angles on the adjusting and fixing device 4. The adjusting and fixing device 4 includes a first slide rod 401, a second slide rod 402, and a connecting rod 403. The first slide rod 401 and the second slide rod 402 respectively pass through the fixed frame 3 and are slidably connected to it. The dial indicators 5 are detachably fixed to the connecting rod 403. The fixed frame 3 is also provided with locking bolts 6 for fixing the first slide rod 401 and the second slide rod 402 to the fixed frame 3. This device can test steel pipes of different diameters and can achieve multi-point testing.

[0020] Furthermore, the drive rotation assembly 2 includes a rotating rod 201, a support block 202, a rotating roller 203, and a drive mechanism 204.

[0021] Furthermore, the drive mechanism 204 includes a motor 2041, a belt 2042, and a pulley 2043.

[0022] It is worth noting that the electrical structures and other components involved in this application can be selected according to the user's needs, as long as they meet the requirements of this application. At the same time, the corresponding control circuits and other components are all existing technologies, which can be fully implemented by those skilled in the art, so they will not be described in detail here.

[0023] Working principle: The steel pipe is placed on the rotating roller 203, the position of the adjusting and fixing device 4 is adjusted, and it is fixed by the locking bolt 6. After fixing, the dial indicator 5 probe on the fixing device 4 is perpendicular to the steel pipe. Then the dial indicator 5 is zeroed. When the drive motor 2041 drives the rotating roller 203 to rotate through the belt 2042 and pulley 2043, the rotating roller 203 drives the steel pipe to rotate. Then, the readings are taken through the dial indicator 5, and the difference in value on each dial indicator 5 is calculated.

Claims

1. A bearing steel pipe roundness testing device, comprising a worktable (1), characterized in that: A drive rotation assembly (2) is provided above the workbench (1). A fixed frame (3) is fixedly provided on one side of the back of the drive rotation assembly (2). An adjustment and fixing device (4) that can be adjusted and fixed back and forth is provided on one side of the front of the fixed frame (3). Several dial indicators (5) are detachably fixed at equal angles on the adjustment and fixing device (4). The adjustment and fixing device (4) includes a first slide rod (401), a second slide rod (402) and a connecting rod (403). The first slide rod (401) and the second slide rod (402) pass through the fixed frame (3) respectively and are slidably connected to the fixed frame (3). The dial indicator (5) is detachably fixed on the connecting rod (403). The fixed frame (3) is also provided with locking bolts (6) for fixing the first slide rod (401) and the second slide rod (402) to the fixed frame (3).

2. The bearing steel pipe roundness detection device according to claim 1, characterized in that: The drive rotation assembly (2) includes a rotating rod (201), a support block (202), a rotating roller (203), and a drive mechanism (204).

3. The bearing steel pipe roundness detection device according to claim 2, characterized in that: The drive mechanism (204) includes a motor (2041), a belt (2042), and a pulley (2043).