Steel rail flaw detection mechanical arm

Abstract

The utility model belongs to the technical field of flaw detection equipment, and particularly relates to a steel rail flaw detection mechanical arm which comprises a rotating base device, a first rotating shaft device is fixedly connected to the rotating base device, and the free end of the first rotating shaft device is fixedly connected with a first telescopic rod device. The free end of the first telescopic rod device is rotatably connected with a second rotating shaft device, the free end of the second rotating shaft device is fixedly connected with a second telescopic rod device, the free end of the second telescopic rod device is rotatably connected with a third rotating shaft device, and the free end of the third rotating shaft device is fixedly connected with a probe. According to the utility model, the first rotating shaft device, the first telescopic rod device, the second rotating shaft device, the second telescopic rod device and the third rotating shaft device which are sequentially matched and in transmission connection are arranged on the rotating base device to form the mechanical arm for detection, so that the deviation angle of a probe can be randomly adjusted, and longitudinal deflection angle scanning flaw detection of each part of a steel rail is completed; the length of the mechanical arm is adjusted to enlarge the flaw detection range.

Description

Technical Field

[0001] The utility model belongs to the technical field of flaw detection equipment, and in particular relates to a rail flaw detection mechanical arm. Background Art

[0002] Rail flaw detection is an important task in railway maintenance. Its main purpose is to detect possible damage to the rails during use, such as breakage, cracks, etc., as well as other problems that affect the performance of the rails. These damages may be caused by a variety of factors, including material problems, repeated effects of train dynamic loads, unreasonable track structure, etc.

[0003] Rail vehicles travel on tracks, and rail transit personnel need to perform regular flaw detection on the tracks, which requires the use of flaw detection equipment. Existing flaw detection equipment mainly uses manual and ultrasonic pulse reflection detection methods. During manual detection, rail transit personnel generally use inspection hammers, flaw detection hooks and other tools to perform flaw detection on the tracks. They can only perform point detection and cannot work continuously, resulting in low detection efficiency for rail transit personnel and increasing their labor intensity. At the same time, rail transit personnel do not thoroughly detect the track, which will leave great safety hazards. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies in the prior art and provide a rail flaw detection mechanical arm suitable for nondestructive testing of various types of rails and rail weld flaw detection, mainly for all-round detection of various types of rail welding joints on active track lines, to improve the efficiency of rail flaw detection operations, thereby effectively solving the problems existing in the prior art.

[0005] To achieve the above purpose, the specific technical solution of the utility model is as follows:

[0006] A rail flaw detection robot arm comprises a rotating base device, to which a first rotating shaft device is fixedly connected, a first telescopic rod device is fixedly connected at a free end of the first rotating shaft device, a second rotating shaft device is rotatably connected at the free end of the first telescopic rod device, a second rotating shaft device is fixedly connected at the free end of the second telescopic rod device, a third rotating shaft device is rotatably connected at the free end of the second telescopic rod device, and a probe is fixedly connected at the free end of the third rotating shaft device.

[0007] As a further configuration of the above scheme, the rotating base device includes a rotating base, which is rotatably connected to a rotating table at the center of the rotating base, and the rotating base can drive the rotating table to rotate 360°. The first rotating shaft device includes a first motor, and the first motor is fixedly mounted on the rotating table. The output shaft of the first motor is connected to a first rotating shaft, and a mounting hole is opened on the first rotating shaft, and a first telescopic rod device is fixedly connected in the mounting hole.

[0008] As a further configuration of the above scheme, the first telescopic rod device includes a first telescopic rod, one end of the first telescopic rod is fixedly connected in the mounting hole, the free end of the first telescopic rod is fixedly connected to a first rotating platform, and the first rotating platform is connected to a first rotating flange.

[0009] As a further configuration of the above scheme, the second rotating shaft device includes a second motor, a second connecting platform is fixedly connected to the second motor, the second connecting platform is transmission-connected with the first rotating flange, and a second rotating shaft is connected to the output shaft of the second motor.

[0010] As a further configuration of the above scheme, the second telescopic rod device includes a second telescopic rod, the second telescopic rod is fixedly mounted on a second rotating shaft, the free end of the second telescopic rod is fixedly connected to a second rotating platform, and the second rotating platform is connected to a second rotating flange.

[0011] As a further configuration of the above scheme, the third rotating shaft device includes a third motor, a third connecting platform is fixedly connected to the third motor, the third connecting platform is transmission-connected with the second rotating flange, a third rotating shaft is connected to the output shaft of the third motor, and one end of the third rotating shaft is fixedly connected to the probe.

[0012] The utility model has the following beneficial effects:

[0013] By arranging a first rotating shaft device, a first telescopic rod device, a second rotating shaft device, a second telescopic rod device and a third rotating shaft device on a rotating base device to form a mechanical arm for detection in sequence, the rotating base device can drive the mechanical arm to rotate 360 ​​degrees on the surface of the rail to ensure the scanning task on the left and right sides of the weld. The first rotating shaft device, the second rotating shaft device and the third rotating shaft device cooperate with the first rotating table and the second rotating table on the first telescopic rod device and the second telescopic rod device to arbitrarily adjust the offset angle of the probe to complete the longitudinal deflection scanning and flaw detection of various parts of the rail, eliminate safety hazards, and cooperate with the first telescopic rod and the second telescopic rod to adjust the length of the mechanical arm to increase the flaw detection range. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall appearance of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 It is a schematic diagram of the rotating base device and the first rotating shaft device of the utility model;

[0017] Figure 4 This is a schematic diagram of the second rotating shaft device of the utility model;

[0018] Figure 5 It is a schematic diagram of the second rotating shaft device of the utility model.

[0019] 1. Rotating base device; 2. First rotating shaft device; 3. First telescopic rod device; 4. Second rotating shaft device; 5. Second telescopic rod device; 6. Third rotating shaft device; 7. Probe; 101. Rotating base; 102. Rotating table; 201. First motor; 202. First rotating shaft; 203. Mounting hole; 301. First telescopic rod; 302. First rotating table; 303. First rotating flange; 401. Second motor; 402. Second connecting table; 403. Second rotating shaft; 501. Second telescopic rod; 502. Second rotating table; 503. Second rotating flange; 601. Third motor; 602. Third connecting table; 603. Third rotating shaft. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 to 5 , and describes the application in detail with reference to embodiments.

[0022] like Figure 1 , Figure 2 As shown, this embodiment discloses a rail flaw detection robot arm, wherein a first rotating shaft device 2 is fixedly connected to the rotating base device 1, a first telescopic rod device 3 is fixedly connected to the free end of the first rotating shaft device 2, a second rotating shaft device 4 is rotatably connected to the free end of the first telescopic rod device 3, a second rotating shaft device 4 is fixedly connected to the free end of the second telescopic rod device 5, a third rotating shaft device 6 is rotatably connected to the free end of the second telescopic rod device 5, and a probe 7 is fixedly connected to the free end of the third rotating shaft device 6.

[0023] like Figure 3 As shown, the rotating base device 1 includes a rotating base 101, and a rotating table 102 is rotatably connected at the center of the rotating base 101. The rotating base 101 can drive the rotating table 102 to rotate 360°. The first rotating shaft device 2 includes a first motor 201, and the first motor 201 is fixedly installed on the rotating table 102. The first rotating shaft 202 is connected to the output shaft of the first motor 201. The first rotating shaft 202 is provided with a mounting hole 203, and the first telescopic rod device 3 is fixedly connected in the mounting hole 203.

[0024] like Figure 4 As shown, the first telescopic rod device 3 includes a first telescopic rod 301, one end of the first telescopic rod 301 is fixedly connected in the mounting hole 203, the free end of the first telescopic rod 301 is fixedly connected to the first rotating table 302, the first rotating table 302 is connected to the first rotating flange 303, the second rotating shaft device 4 includes a second motor 401, the second motor 401 is fixedly connected to the second connecting table 402, the second connecting table 402 is matched with the first rotating flange 303 for transmission connection, the output shaft of the second motor 401 is connected to the second rotating shaft 403, the second telescopic rod device 5 includes a second telescopic rod 501, the second telescopic rod 501 is fixedly installed on the second rotating shaft 403, the free end of the second telescopic rod 501 is fixedly connected to the second rotating table 502, the second rotating table 502 is connected to the second rotating flange 503.

[0025] like Figure 5 As shown, the third rotating shaft device 6 includes a third motor 601, to which a third connecting platform 602 is fixedly connected. The third connecting platform 602 is transmission-connected with the second rotating flange 503. The output shaft of the third motor 601 is connected with a third rotating shaft 603, and one end of the third rotating shaft 603 is fixedly connected to the probe 7.

[0026] The working process of the utility model is as follows: by arranging a first rotating shaft device 2, a first telescopic rod device 3, a second rotating shaft device 4, a second telescopic rod device 5 and a third rotating shaft device 6 on a rotating base device 1 to cooperate and drive in sequence to form a mechanical arm for detection, the rotating base device 1 can drive the mechanical arm to rotate 360 ​​degrees on the rail surface to ensure the scanning task on the left and right sides of the weld, the first rotating shaft device 2, the second rotating shaft device 4 and the third rotating shaft device 6 cooperate with the first rotating table 302 and the second rotating table 502 on the first telescopic rod device 3 and the second telescopic rod device 5, the first motor 201 drives the first telescopic rod device 3 to rotate, the second motor 401 drives the second telescopic rod device 5 to rotate, the third motor 601 drives the probe 7 to rotate, and at the same time, the first rotating table 302 drives the second motor 401 to rotate, and the second rotating table 502 drives the third motor 601 to rotate, the offset angle of the probe 7 can be arbitrarily adjusted to complete the longitudinal deflection scanning flaw detection of various parts of the rail, and the length of the mechanical arm is adjusted in cooperation with the first telescopic rod 301 and the second telescopic rod 501 to increase the flaw detection range.

[0027] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rail flaw detection robot arm, comprising a rotating base device, characterized in that: A first rotating shaft device is fixedly connected to the rotating base device, a first telescopic rod device is fixedly connected to the free end of the first rotating shaft device, a second rotating shaft device is rotatably connected to the free end of the first telescopic rod device, a second rotating shaft device is fixedly connected to the free end of the second telescopic rod device, a third rotating shaft device is rotatably connected to the free end of the second telescopic rod device, and a probe is fixedly connected to the free end of the third rotating shaft device.

2. The rail flaw detection robot arm according to claim 1, characterized in that: The rotating base device includes a rotating base, a rotating table is rotatably connected at the center of the rotating base, and the rotating base can drive the rotating table to rotate 360°. The first rotating shaft device includes a first motor, and the first motor is fixedly mounted on the rotating table. The output shaft of the first motor is connected to a first rotating shaft. The first rotating shaft is provided with a mounting hole, and a first telescopic rod device is fixedly connected in the mounting hole.

3. The rail flaw detection robot arm according to claim 2, characterized in that: The first telescopic rod device comprises a first telescopic rod, one end of the first telescopic rod is fixedly connected in the mounting hole, a free end of the first telescopic rod is fixedly connected to a first rotating platform, and a first rotating flange is connected to the first rotating platform.

4. The rail flaw detection mechanical arm according to claim 3, characterized in that: The second rotating shaft device comprises a second motor, a second connecting platform is fixedly connected to the second motor, the second connecting platform is drivingly connected with the first rotating flange, and the output shaft of the second motor is connected to the second rotating shaft.

5. The rail flaw detection mechanical arm according to claim 4, characterized in that: The second telescopic rod device includes a second telescopic rod, the second telescopic rod is fixedly mounted on a second rotating shaft, a free end of the second telescopic rod is fixedly connected to a second rotating platform, and a second rotating flange is connected to the second rotating platform.

6. The rail flaw detection mechanical arm according to claim 5, characterized in that: The third rotating shaft device includes a third motor, a third connecting platform is fixedly connected to the third motor, the third connecting platform is drivingly connected with the second rotating flange, a third rotating shaft is connected to the output shaft of the third motor, and one end of the third rotating shaft is fixedly connected to the probe.

Images