A rail coating thickness measuring instrument

Abstract

This utility model discloses a rail coating thickness measuring instrument, relating to the field of rail inspection technology. The instrument includes a mounting plate, a testing mechanism, and a positioning mechanism, with a rail body positioned below the mounting plate. The instrument moves along the rail body via casters on the mounting plate, eliminating the need for manual operation. This significantly reduces the physical strain and difficulty of prolonged hand-held operation and avoids positional shifts and data fluctuations caused by hand tremors, ensuring the stability and accuracy of coating thickness measurement data. It is particularly suitable for continuous testing of long-distance rails, minimizing interruptions. Simultaneously, guide wheels embedded in grooves on both sides of the rail body provide precise positioning for the thickness measuring instrument as it moves the mounting plate, preventing lateral shift during testing.

Description

Technical Field

[0001] This utility model relates to the field of railway track inspection technology, and in particular to a railway track coating thickness measuring instrument. Background Technology

[0002] Railway tracks, also known as rails, are primarily used on railways and work in conjunction with switches to allow trains to travel without turning. A railway track typically consists of two parallel steel rails fixed to sleepers, with ballast underneath. It is secured by railway accessories such as rail braces, fasteners, rail clamps, rail clips, elastic clips, and railway spikes.

[0003] During the production of railway tracks, a thickness gauge is needed to inspect the coating on the track surface to prevent uneven coating from affecting the quality of the track. However, some of the current inspection instruments require workers to hold them by hand, which is inconvenient for workers to operate. Utility Model Content

[0004] The purpose of this utility model is to provide a rail coating thickness measuring instrument, which can solve the problem that some measuring instruments require workers to hold them by hand during use, which is not conducive to workers' operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rail coating thickness detector, comprising a mounting plate, a detection mechanism and a positioning mechanism, wherein a rail body is provided below the mounting plate;

[0006] The testing mechanism is mounted on the mounting plate. The testing mechanism includes an electric push rod, a lifting plate on the electric push rod, and a thickness measuring instrument on the lifting plate.

[0007] The positioning mechanism is located on the mounting plate. The positioning mechanism includes a transmission box, on which a self-locking bidirectional lead screw is provided. The self-locking bidirectional lead screw is provided with a guide wheel. The self-locking bidirectional lead screw is used to drive the guide wheel to move.

[0008] Preferably, the detection mechanism further includes a fixed side plate, a support rod, and a fixed circular plate. Fixed side plates are fixedly installed on both sides of the mounting plate, a support rod is fixedly installed at the bottom of the fixed side plate, a fixed circular plate is fixedly installed at the bottom of the support rod, and a caster wheel is provided at the bottom of the fixed circular plate.

[0009] Preferably, an electric push rod is fixedly installed on the top of the mounting plate, the free end of the electric push rod extends to the bottom of the mounting plate and is fixedly installed on a lifting plate, and a thickness measuring instrument is provided at the bottom of the lifting plate, the thickness measuring instrument being located above the rail body.

[0010] Preferably, the positioning mechanism further includes a guide crossbar, a movable plate, a mounting block, a fixed sleeve, a sliding rod, a connecting circular plate, and a rotating rod. A transmission box is fixedly installed on the front side of the mounting plate. Self-locking bidirectional lead screws are rotatably installed on the inner walls of both sides of the transmission box. A guide crossbar is fixedly installed on the inner walls of both sides of the transmission box. A movable plate is slidably installed on the outer wall of the guide crossbar. The movable plate and the self-locking bidirectional lead screw are threaded together. One end of the self-locking bidirectional lead screw extends to one side of the transmission box and is fixedly installed with a handle.

[0011] Preferably, an mounting block is fixedly installed at the bottom of the movable plate, a fixing sleeve is fixedly installed at the bottom of the mounting block, a sliding rod is slidably installed inside the fixing sleeve, a connecting circular plate is fixedly installed at the bottom of the sliding rod, a rotating rod is rotatably installed at the bottom of the connecting circular plate, and a guide wheel is fixedly installed on the outer wall of the rotating rod.

[0012] Preferably, the guide wheel is located in the grooves on both sides of the rail body and the outer wall of the guide wheel does not contact the inner wall of the groove on the rail body.

[0013] Preferably, the bottom of the transmission box has an opening for the mounting block to move.

[0014] Compared with existing technologies, the advantages of this utility model are as follows: This rail coating thickness measuring instrument moves on the rail body via universal wheels on the mounting plate, eliminating the need for workers to hold the device during testing. This significantly reduces the physical exertion and operational difficulty of prolonged hand operation and avoids positional shifts and data fluctuations caused by hand tremors, ensuring the stability and accuracy of coating thickness measurement data. It is particularly suitable for the continuous testing needs of long-distance rails, reducing testing interruptions. Simultaneously, the guide wheels embedded in the grooves on both sides of the rail body provide precise positioning for the thickness measuring instrument as it moves the mounting plate. To prevent lateral deviation of the thickness gauge during inspection, ensuring that the gauge always follows the preset path of the rail coating, avoiding missed inspections, duplicate inspections, or inspection positions deviating from the coating area, further guaranteeing the integrity of the inspection coverage and the reliability of the data; the self-locking bidirectional lead screw can flexibly adjust the distance between the two sets of guide wheels, adapting to rail bodies of different widths, breaking the limitation of traditional gauges that can only correspond to a single rail width, eliminating the need to configure separate gauges for rails of different widths, reducing equipment procurement and storage costs, minimizing inspection delays caused by equipment replacement, and improving the device's adaptability to diverse rail inspection needs. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2This is a bottom view of the present invention;

[0018] Figure 3 This is a cross-sectional view of the transmission box of this utility model.

[0019] Reference numerals: 1. Mounting plate; 2. Rail body; 3. Detection mechanism; 301. Electric push rod; 302. Fixed side plate; 303. Support rod; 304. Fixed circular plate; 305. Lifting plate; 306. Thickness measuring instrument; 4. Positioning mechanism; 401. Transmission box; 402. Self-locking double-acting screw; 403. Guide crossbar; 404. Moving plate; 405. Mounting block; 406. Fixed sleeve; 407. Sliding rod; 408. Connecting circular plate; 409. Rotating rod; 410. Guide wheel. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the description of the textual part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a rail coating thickness detector, including a mounting plate 1, a detection mechanism 3, and a positioning mechanism 4. A rail body 2 is located below the mounting plate 1. The detection mechanism 3 is located on the mounting plate 1 and includes an electric push rod 301. A lifting plate 305 is located on the electric push rod 301, and a thickness detector 306 is located on the lifting plate 305. The positioning mechanism 4 is located on the mounting plate 1 and includes a transmission box 401. A self-locking bidirectional lead screw 402 is located on the transmission box 401, and a guide wheel 410 is located on the self-locking bidirectional lead screw 402. The self-locking bidirectional lead screw 402 is used to drive the guide wheel 410 to move.

[0022] Furthermore, the detection mechanism 3 also includes a fixed side plate 302, a support rod 303, and a fixed circular plate 304. Fixed side plates 302 are fixedly installed on both sides of the mounting plate 1. A support rod 303 is fixedly installed at the bottom of the fixed side plate 302. A fixed circular plate 304 is fixedly installed at the bottom of the support rod 303. A caster wheel is provided at the bottom of the fixed circular plate 304. An electric push rod 301 is fixedly installed at the top of the mounting plate 1. The free end of the electric push rod 301 extends to the bottom of the mounting plate 1 and is fixedly installed with a lifting plate 305. A thickness gauge 306 is provided at the bottom of the lifting plate 305. The thickness gauge 306 is located above the rail body 2. The positioning mechanism 4 also includes a guide crossbar 4. 03. A movable plate 404, a mounting block 405, a fixed sleeve 406, a sliding rod 407, a connecting circular plate 408, and a rotating rod 409 are included. A transmission box 401 is fixedly mounted on the front side of the mounting plate 1. Self-locking double-acting screws 402 are rotatably mounted on the inner walls of both sides of the transmission box 401. Guide crossbars 403 are fixedly mounted on the inner walls of both sides of the transmission box 401. A movable plate 404 is slidably mounted on the outer wall of the guide crossbars 403. The movable plate 404 and the self-locking double-acting screws 402 are threaded together. One end of the self-locking double-acting screws 402 extends to one side of the transmission box 401 and is fixedly mounted with a handle. A mounting block 405 is fixedly mounted on the bottom of the movable plate 404. The mounting block 405... A fixing sleeve 406 is fixedly installed at the bottom. A sliding rod 407 is slidably installed inside the fixing sleeve 406. A connecting circular plate 408 is fixedly installed at the bottom of the sliding rod 407. A rotating rod 409 is rotatably installed at the bottom of the connecting circular plate 408. A guide wheel 410 is fixedly installed on the outer wall of the rotating rod 409. The guide wheel 410 is located in the grooves on both sides of the rail body 2, and the outer wall of the guide wheel 410 does not contact the inner wall of the groove on the rail body 2. An opening is provided at the bottom of the transmission box 401 for the mounting block 405 to move. The universal wheel on the mounting plate 1 drives the thickness measuring instrument 306 to move on the rail body 2. During the inspection, the worker does not need to hold the equipment, which greatly reduces the worker's workload. The handheld operation reduces physical exertion and operational difficulty, and avoids detection position deviation and data fluctuation caused by hand tremors during handheld operation, ensuring the stability and accuracy of coating thickness detection data. It is especially suitable for the continuous detection needs of long-distance railway tracks, reducing detection interruptions. At the same time, the guide wheel 410 is embedded in the grooves on both sides of the rail body 2, which can provide precise limit for the thickness detector 306 when pushing the mounting plate 1 to move, preventing the thickness detector 306 from shifting laterally during the detection process. This ensures that the thickness detector 306 always detects along the preset path of the rail coating, avoiding missed detections, repeated detections, or detection positions deviating from the coating area, further ensuring the integrity of the detection coverage and the reliability of the data.The self-locking bidirectional lead screw 402 allows for flexible adjustment of the distance between the two sets of guide wheels 410, enabling it to adapt to rail bodies 2 of different widths. This breaks the limitation of traditional testing instruments that can only handle a single rail width, eliminating the need for dedicated testing instruments for different rail widths. It reduces equipment procurement and storage costs, minimizes delays in testing schedules due to equipment replacement, and enhances the device's adaptability to diverse rail testing needs.

[0023] Working Principle: The electric push rod 301 and thickness gauge 306 mentioned above are existing technologies, so their internal structure and control method do not need to be described in detail. In use, the guide wheel 410 is placed on both sides of the rail body 2, and the guide wheel 410 is kept flush with the groove on the rail body 2. Then, the worker manually rotates the handle to drive the self-locking double-acting screw 402 to rotate. The rotation of the self-locking double-acting screw 402 drives the moving plate 404 and the mounting block 405 to move. The movement of the mounting block 405 drives the connecting circular plate 408 to move through the fixed sleeve 406 and the sliding rod 407, which in turn drives the rotating rod 409 and the guide wheel 410 to move. After the guide wheel 410 is moved into the groove on the rail body 2, the worker manually moves the mounting plate 1 to move the thickness gauge 306 on the rail body 2. Then, the electric push rod 301 is controlled to drive the thickness gauge 306 to descend. When the detection end of the thickness gauge 306 contacts the surface of the rail body 2, the thickness gauge 306 is used to detect the rail body 2.

[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A rail coating thickness measuring instrument, characterized in that, include: Mounting plate (1), with rail body (2) located below mounting plate (1); The testing mechanism (3) is mounted on the mounting plate (1). The testing mechanism (3) includes an electric push rod (301), a lifting plate (305) is provided on the electric push rod (301), and a thickness measuring instrument (306) is provided on the lifting plate (305). The positioning mechanism (4) is located on the mounting plate (1). The positioning mechanism (4) includes a transmission box (401), a self-locking bidirectional screw (402) is provided on the transmission box (401), and a guide wheel (410) is provided on the self-locking bidirectional screw (402). The self-locking bidirectional screw (402) is used to drive the guide wheel (410) to move.

2. The rail coating thickness measuring instrument according to claim 1, characterized in that: The detection mechanism (3) also includes a fixed side plate (302), a support rod (303) and a fixed circular plate (304). The fixed side plates (302) are fixedly installed on both sides of the mounting plate (1). The support rod (303) is fixedly installed at the bottom of the fixed side plate (302). The fixed circular plate (304) is fixedly installed at the bottom of the support rod (303). The bottom of the fixed circular plate (304) is provided with casters.

3. The rail coating thickness measuring instrument according to claim 2, characterized in that: An electric push rod (301) is fixedly installed on the top of the mounting plate (1). The free end of the electric push rod (301) extends to the bottom of the mounting plate (1) and is fixedly installed with a lifting plate (305). A thickness detector (306) is provided at the bottom of the lifting plate (305). The thickness detector (306) is located above the rail body (2).

4. The rail coating thickness measuring instrument according to claim 3, characterized in that: The positioning mechanism (4) also includes a guide crossbar (403), a movable plate (404), a mounting block (405), a fixed sleeve (406), a sliding rod (407), a connecting circular plate (408), and a rotating rod (409). A transmission box (401) is fixedly installed on the front side of the mounting plate (1). A self-locking double-acting screw (402) is rotatably installed on the inner walls of both sides of the transmission box (401). A guide crossbar (403) is fixedly installed on the inner walls of both sides of the transmission box (401). A movable plate (404) is slidably installed on the outer wall of the guide crossbar (403). The movable plate (404) and the self-locking double-acting screw (402) are threaded together. One end of the self-locking double-acting screw (402) extends to one side of the transmission box (401) and is fixedly installed with a handle.

5. The rail coating thickness measuring instrument according to claim 4, characterized in that: The bottom of the movable plate (404) is fixedly installed with an installation block (405), the bottom of the installation block (405) is fixedly installed with a fixing sleeve (406), a sliding rod (407) is slidably installed inside the fixing sleeve (406), a connecting round plate (408) is fixedly installed at the bottom of the sliding rod (407), a rotating rod (409) is rotatably installed at the bottom of the connecting round plate (408), and a guide wheel (410) is fixedly installed on the outer wall of the rotating rod (409).

6. The rail coating thickness measuring instrument according to claim 5, characterized in that: The guide wheel (410) is located in the grooves on both sides of the rail body (2) and the outer wall of the guide wheel (410) does not contact the inner wall of the groove on the rail body (2).

7. The rail coating thickness measuring instrument according to claim 6, characterized in that: The bottom of the transmission box (401) has an opening for the mounting block (405) to move.

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