Portable measuring instrument for steel rail abrasion

Abstract

The utility model relates to a portable measuring instrument for steel rail abrasion, which comprises a profile measuring part, a mounting assembly and a magnetic attraction assembly, a plurality of vernier calipers are mounted in the profile measuring part, the mounting assembly comprises an L-shaped sliding rail and a base, the profile measuring part is in vertical sliding connection with the upper part of the L-shaped sliding rail, a transverse sliding chute is arranged on the upper surface of the base, and the magnetic attraction assembly is arranged in the sliding chute. The lower portion of the L-shaped sliding rail is transversely connected with the sliding groove in a sliding mode, and the magnetic attraction assembly is fixedly installed on the base. According to the portable measuring instrument for steel rail abrasion, the detection of the profile of the steel rail is realized, the cost can be saved, the operation is convenient and fast, the measured data can be obtained in real time, the abrasion condition of the profile of the steel rail can be obtained in time, and a basis is provided for the assessment, maintenance and replacement of the abrasion of the steel rail.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, specifically to a portable rail wear measuring instrument. Background Technology

[0002] Currently, rail grinding technology has become an internationally recognized method for eliminating surface damage and defects in rails and improving rail quality. Extensive domestic and international practice has proven that rail grinding achieves excellent results in controlling fatigue contact, slowing crack propagation, and reducing surface damage, bringing significant benefits. With the rapid development of railway transportation, especially the widespread adoption of high-speed and heavy-haul railways, the pressure and wear rate on rails have increased significantly, making rail maintenance even more urgent.

[0003] With the rapid development of China's railways, the requirements for railway track measurement have gradually increased. Traditional rail profile measurement mainly relies on manual measurement using various measuring tools, which requires a large amount of manpower and time, demands high experience from the surveyors, and makes it difficult to guarantee measurement accuracy. In addition, it also has disadvantages such as non-intuitive measurement results, low efficiency, and inconvenient data storage. Utility Model Content

[0004] To address the technical problems existing in the prior art, this utility model provides a portable rail wear measuring instrument to detect the rail profile and obtain measurement data in real time.

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

[0006] A portable rail wear measuring instrument includes a profile measuring component, a mounting component, and a magnetic suction component. The profile measuring component is equipped with multiple vernier calipers. The mounting component includes an L-shaped slide rail and a base. The profile measuring component is vertically slidably connected to the upper part of the L-shaped slide rail. The upper surface of the base is provided with a transverse groove. The lower part of the L-shaped slide rail is slidably connected to the groove. The magnetic suction component is fixedly installed on the base.

[0007] As a preferred technical solution, the magnetic attraction component includes a switch-type magnet, on which a rotary switch is installed, and the magnetic attraction surface of the switch-type magnet is cut to fit the rail.

[0008] As a preferred technical solution, the switch magnet is provided with a first threaded hole, and a fixing screw is provided in the first threaded hole. The side surface of the base is provided with a screw hole. The threads in the first threaded hole and the screw hole are matched with the fixing screw. The fixing screw passes through the first threaded hole and the screw hole to fix the switch magnet on the base.

[0009] As a preferred technical solution, the profile measuring component is provided with several slots, the vernier caliper is set in the slots, and the profile measuring component is provided with a groove on the side near the base, the groove being fitted onto the upper part of the L-shaped slide rail.

[0010] As a preferred technical solution, a second threaded hole is provided on the outer side of the profile measuring component near the slot, and a locking screw is installed in the second threaded hole. The second threaded hole matches the locking screw to fix the profile measuring component to the upper part of the L-shaped slide rail.

[0011] As a preferred technical solution, the lower part of the L-shaped slide rail is provided with a third threaded hole, and a locking screw is provided in the third threaded hole. The third threaded hole matches the locking screw to fix the lower part of the L-shaped slide rail in the slide groove.

[0012] As a preferred technical solution, the vernier caliper uses a digital caliper.

[0013] As a preferred technical solution, the positions of the slots on the profile measuring component, from the side away from the base to the other side, correspond to the gauge angle of the rail being measured, the working edge of the rail top, and the non-working edge of the rail being measured, respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this portable rail wear measuring instrument, the position of the magnetic suction component is adjusted by fixing screws to fix the measuring instrument on the rail. The profile of the rail is measured by the vernier caliper probe on the profile measuring component, and the measurement data is obtained in real time. By comparing with the critical profile of rail wear, which uses the wear coefficient as the judgment index, it is determined whether the measured rail needs to be ground. This makes the measurement of rail profile more convenient and provides a more effective and intuitive standard for rail grinding. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the portable rail wear measuring instrument of this utility model;

[0017] Figure 2 This is a schematic diagram showing the usage status of the portable rail wear measuring instrument of this utility model.

[0018] Figure 3 This is a side view of the portable rail wear measuring instrument of this utility model in use.

[0019] Figure 4 This is a cross-sectional view of the profile measuring component and mounting assembly of the portable rail wear measuring instrument of this utility model.

[0020] In the diagram: 1. Profile measuring component; 2. Vernier caliper; 3. L-shaped slide rail; 4. Base; 5. Fixing screw; 6. Switch magnet; 7. Rotary switch; 8. Locking screw; 9. Locking screw; 10. The rail being measured. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to specific embodiments:

[0022] like Figure 1 As shown, a portable rail wear measuring instrument includes a profile measuring component 1, a mounting assembly, and a magnetic suction assembly. Multiple vernier calipers 2 are installed within the profile measuring component 1. Figure 4 As shown, the mounting assembly includes an L-shaped slide rail 3 and a base 4. The profile measuring component 1 is vertically slidably connected to the upper part of the L-shaped slide rail 3. The upper surface of the base 4 is provided with a horizontal groove, and the lower part of the L-shaped slide rail 3 is horizontally slidably connected to the groove. The magnetic suction component is fixedly mounted on the base 4. The profile of the rail 10 being measured is measured using a vernier caliper 2 probe on the profile measuring component 1, making the measurement process more convenient.

[0023] The magnetic attraction assembly includes a switch magnet 6, which is equipped with a knob. The magnetic attraction surface of the switch magnet 6 is cut to fit the rail. The magnetic on / off state of the switch magnet 6 is controlled by the knob switch 7.

[0024] The switch-type magnet 6 has a first threaded hole, and a fixing screw 5 is installed in the first threaded hole. The side surface of the base 4 has a screw hole. The threads in the first threaded hole and the screw hole are matched with the fixing screw 5. The fixing screw 5 passes through the first threaded hole and the screw hole. The switch-type magnet 6 is installed on the base 4 by the fixing screw 5. By adjusting the position of the switch-type magnet 6, the profile measuring component 1 is made to be horizontal with the rail plane.

[0025] In this embodiment, the profile measuring component 1 is provided with 14 slots, and the vernier caliper 2 is placed in the slots to prevent the vernier caliper 2 from falling out. The profile measuring component 1 has a slot on the side near the base 4, and the slot is fitted onto the upper part of the L-shaped slide rail 3 so that the profile measuring component 1 can slide up and down along the upper part of the L-shaped slide rail 3.

[0026] A second threaded hole is provided on the outer side of the profile measuring component 1 near the slot. A locking screw 8 is installed in the second threaded hole. The second threaded hole matches the locking screw 8 to fix the profile measuring component 1 to the upper part of the L-shaped slide rail 3.

[0027] The lower part of the L-shaped slide rail 3 is provided with a third threaded hole, and a locking screw 9 is provided in the third threaded hole. The third threaded hole matches the locking screw 9 to fix the lower part of the L-shaped slide rail 3 in the slide groove.

[0028] The Vernier caliper 2 uses a digital caliper, which can obtain measurement data in real time, facilitating subsequent data processing.

[0029] On the profile measuring component 1, from the side furthest from the base 4 to the other, the positions of the slots correspond to the gauge angle, the working edge of the rail top, and the non-working edge of the rail 10 being measured, respectively. The position of each slot has different significance for rail measurement; specifically, for example... Figure 3 As shown, slots 201 to 203 are concentrated around the 10 gauge angle of the rail being tested. Measuring in this area allows for the assessment of derailment safety (this area is where wheel lateral displacement exceeds 9mm) while collecting rail wear data. Slots 204 to 211 are concentrated around the top of the 10 gauge angle and the working edge of the rail being tested (this area is where wheel lateral displacement is 0mm-9mm). Measuring in this area allows for the assessment of the vehicle's straight-line stability, curve handling, and running smoothness while collecting rail wear data, thereby determining the impact of rail wear on vehicle safety, passenger comfort, and maintenance costs on curve sections. Slots 212 to 214 are concentrated on the non-working edge of the rail (this area generally does not contact the wheel, so the rail is not worn). Since the rail wear in this location is not affected, it can serve as a rail measurement calibration point, aligning the rail profile at different locations.

[0030] like Figure 2 As shown, the method of using this measuring instrument is as follows: Adjust the position of the magnetic attraction component by moving the switch magnet 6 to make the profile measuring component 1 horizontal with the rail plane; turn on the knob switch 7 to make the switch magnet 6 attract to the rail, thereby fixing the measuring instrument; move the L-shaped slide rail 3 so that its lower part slides laterally in the slide groove to adjust the profile measuring component 1 to the measurement range, and fix the lower part of the L-shaped slide rail 3 with the locking screw 9; at the same time, slide the profile measuring component 1 along the upper part of the L-shaped slide rail 3 until it is 1cm above the rail plane and fix it with the locking screw 8; slide the probes of the 14 vernier calipers 2 to contact the rail surface. The probes will not fall off due to gravity. Record the values ​​displayed on the screens of the 14 vernier calipers 22. Subtract the values ​​from the initial settings corresponding to the 14 slots to obtain the relative values, so as to intuitively reflect the wear of the rail.

[0031] The rail profile comparison ruler of this utility model can be installed, connected, or set in a common mechanical manner, and any method that can achieve its beneficial effect can be implemented. The switchable magnet 6 of the rail profile comparison ruler of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0032] This embodiment is merely a further explanation of the present invention and is not intended to limit the present invention. Those skilled in the art can make non-creative modifications to this embodiment as needed after reading this specification, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A portable rail wear measuring instrument, characterized in that, The device includes a profile measuring component, a mounting component, and a magnetic suction component. The profile measuring component houses multiple vernier calipers. The mounting component includes an L-shaped slide rail and a base. The profile measuring component is vertically slidably connected to the upper part of the L-shaped slide rail. The upper surface of the base has a horizontal groove. The lower part of the L-shaped slide rail is horizontally slidably connected to the groove. The magnetic suction component is fixedly mounted on the base.

2. The portable rail wear measuring instrument according to claim 1, characterized in that, The magnetic attraction assembly includes a switch-type magnet with a rotary switch mounted on it. The magnetic attraction surface of the switch-type magnet is cut to fit the rail.

3. The portable rail wear measuring instrument according to claim 2, characterized in that, The switch magnet has a first threaded hole, and a fixing screw is provided in the first threaded hole. The side surface of the base has a screw hole. The threads in the first threaded hole and the screw hole are matched with the fixing screw. The fixing screw passes through the first threaded hole and the screw hole to fix the switch magnet on the base.

4. The portable rail wear measuring instrument according to claim 1, characterized in that, The profile measuring component is provided with several slots, and the vernier caliper is set in the slots. The profile measuring component is provided with a groove on the side near the base, and the groove is fitted onto the upper part of the L-shaped slide rail.

5. The portable rail wear measuring instrument according to claim 4, characterized in that, The profile measuring component has a second threaded hole on the outside of the side near the slot. A locking screw is installed in the second threaded hole. The second threaded hole matches the locking screw to fix the profile measuring component to the upper part of the L-shaped slide rail.

6. The portable rail wear measuring instrument according to claim 1, characterized in that, The lower part of the L-shaped slide rail is provided with a third threaded hole, and a locking screw is provided in the third threaded hole. The third threaded hole matches the locking screw to fix the lower part of the L-shaped slide rail in the slide groove.

7. The portable rail wear measuring instrument according to claim 1, characterized in that, The vernier caliper is a digital caliper.

8. The portable rail wear measuring instrument according to claim 4, characterized in that, On the profile measuring component, from the side away from the base to the other side, the positions of the slots correspond to the gauge angle of the rail being measured, the working edge of the rail top of the rail being measured, and the non-working edge of the rail being measured, respectively.

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