A bearing steel pipe straightness detection device

By introducing a combination of rotating rollers and photoelectric sensors into the steel pipe inspection equipment, the straightness of steel pipes can be automatically detected, solving the problems of complex operation and low efficiency of existing equipment and improving inspection efficiency.

CN224327712UActive 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
2025-08-01
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing steel pipe straightness testing equipment is complex to operate and has low testing efficiency.

Method used

The system employs a combination of a fixed frame, a rotating frame, a rotating roller, and a photoelectric sensor. The rotating frame rotates by the lifting and lowering of the rotating roller, which triggers changes in the occlusion of the photoelectric sensor, thus achieving automatic detection.

Benefits of technology

The operation process has been simplified, and the detection efficiency has been significantly improved.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224327712U_ABST
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Abstract

The utility model relates to the technical field of steel pipe, concretely is a bearing steel pipe straightness detection device. Including the fixed frame is provided with the conveying mechanism on the fixed frame, is rotatably installed with the rotary frame on the fixed frame, is rotatably set up with the rotary roller on the rotary frame, and the rotary roller front side bottom position fixed setting has the baulk, and the fixed frame bottom position still is provided with the photoelectric sensor of cooperation use with the baulk. Convenient to use, can greatly promote the detection efficiency.
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Description

Technical Field

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

[0002] Steel pipes are prone to deformation after transportation or storage. Before machining, the straightness of the steel pipes needs to be checked, and any unqualified steel pipes need to be straightened.

[0003] Traditional steel pipe straightness testing equipment, such as the cold-rolled seamless steel pipe straightness testing device with publication number CN222895722U, includes a testing platform. A movable frame parallel to the cold-rolled seamless steel pipe to be tested is installed above the testing platform. A movable seat is installed on the movable frame, and two sliders are installed on the movable seat. Oppositely arranged side frames are installed on the two sliders. An arc-shaped plate is installed on the side frames. Several testing components are provided on the arc-shaped plate. Each testing component includes a sleeve fixed to the arc-shaped plate. A spring is installed inside the sleeve. A top rod is slidably connected to the sleeve, contacting the line on the cold-rolled seamless steel pipe to be tested. The tail end of the top rod abuts against the spring. A distance sensor for detecting the distance between the top rod and the sleeve is installed.

[0004] When using the above equipment, the steel pipe needs to be fixed. During the detection process, the moving base needs to be moved continuously to detect the distance between the distance sensor and the steel pipe. The operation process is relatively complicated and the detection efficiency is slow. 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 straightness testing device that is easy to use and can greatly improve testing efficiency.

[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 straightness testing device includes a fixed frame, a conveying mechanism mounted on the fixed frame, a rotating frame rotatably mounted on the fixed frame, a rotating roller rotatably mounted on the rotating frame, a stop bar fixedly mounted at the bottom of one side of the rotating roller, and a photoelectric sensor cooperating with the stop bar at the bottom of the fixed frame. It is easy to use and can greatly improve testing efficiency.

[0010] Preferably, the rotating frame includes a first rotating rod, a second rotating rod, and a connecting rod, and the rotating roller is rotatably mounted on the connecting rod.

[0011] Preferably, the conveying mechanism includes a conveying roller, a motor, and a gearbox.

[0012] Preferably, the photoelectric sensor is a diffuse reflection photoelectric sensor.

[0013] Preferably, it also includes an alarm and a controller.

[0014] (III) Beneficial Effects

[0015] This utility model provides a device for detecting the straightness of bearing steel pipes. It has the following beneficial effects:

[0016] (1) When the steel pipe to be tested is conveyed by the conveying mechanism, when the rotating roller pressing on the steel pipe encounters the bent steel pipe, the rotating roller will be lifted and lowered, and the rotating roller will drive the rotating frame to rotate. At this time, the stop bar loses its shielding of the photoelectric sensor, thereby triggering an alarm prompt. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present utility model;

[0018] Figure 2 This is a rear view of the present invention.

[0019] In the diagram: 1. Fixed frame; 2. Conveying mechanism; 3. Rotating frame; 4. Rotating roller; 5. Stop bar; 6. Photoelectric sensor; 301. First rotating rod; 302. Second rotating rod; 303. Connecting rod; 201. Conveying roller; 202. Motor; 203. Gearbox. Detailed Implementation

[0020] 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.

[0021] like Figure 1-2 As shown, the bearing steel pipe straightness detection device of this embodiment includes a fixed frame 1, a conveying mechanism 2 mounted on the fixed frame 1, a rotating frame 3 rotatably mounted on the fixed frame 1, a rotating roller 4 rotatably mounted on the rotating frame 3, a stop bar 5 fixedly mounted at the bottom of one side of the rotating roller 4, and a photoelectric sensor 6 cooperating with the stop bar 5 at the bottom of the fixed frame 1. This facilitates rapid detection of the straightness of the steel pipe.

[0022] Furthermore, the rotating frame 3 includes a first rotating rod 301, a second rotating rod 302, and a connecting rod 303, with the rotating roller 4 rotatably mounted on the connecting rod 303.

[0023] Furthermore, the conveying mechanism 2 includes a conveying roller 201, a motor 202, and a gearbox 203.

[0024] Furthermore, photoelectric sensor 6 is a diffuse reflection photoelectric sensor. The model number of the diffuse reflection photoelectric sensor is: E3JK-DS30 / R4 / 5DM1.

[0025] Furthermore, it also includes an alarm and a controller. When the photoelectric sensor 6 is no longer obstructed, the controller receives the feedback signal from the photoelectric sensor 6 and issues an alarm through the alarm.

[0026] 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.

[0027] Working principle: The steel pipe to be tested is placed on the conveying mechanism 2 for transport. The rotating roller 4 on the rotating frame 3 presses on the steel pipe. As the steel pipe is transported, the rotating roller 4 rotates. If the steel pipe is deformed, the rotating roller 4 will be lifted and lowered by the steel pipe. The rotating roller 4 will drive the rotating frame 3 to rotate, and the rotating frame 3 will drive the stop bar 5 to rotate, so the photoelectric sensor 6 will no longer be blocked by the stop bar 5. The straightness of the steel pipe can be determined by whether the stop bar 5 can block the photoelectric sensor 6.

Claims

1. A bearing steel pipe straightness testing device, comprising a fixing frame (1), characterized in that: The fixed frame (1) is provided with a conveying mechanism (2), a rotating frame (3) is rotatably mounted on the fixed frame (1), a rotating roller (4) is rotatably mounted on the rotating frame (3), a stop bar (5) is fixedly mounted on the bottom of one side of the rotating roller (4), and a photoelectric sensor (6) is also provided at the bottom of the fixed frame (1) to cooperate with the stop bar (5).

2. The bearing steel pipe straightness testing device according to claim 1, characterized in that: The rotating frame (3) includes a first rotating rod (301), a second rotating rod (302) and a connecting rod (303), and the rotating roller (4) is rotatably mounted on the connecting rod (303).

3. The bearing steel pipe straightness testing device according to claim 1, characterized in that: The conveying mechanism (2) includes a conveying roller (201), a motor (202), and a gearbox (203).

4. The bearing steel pipe straightness testing device according to claim 1, characterized in that: The photoelectric sensor (6) is a diffuse reflection photoelectric sensor.

5. The bearing steel pipe straightness testing device according to claim 1, characterized in that: It also includes alarms and controllers.