A special tool for measuring the sensor of an electric locomotive
By designing a special tool for measuring electric locomotive sensors, the problems of inconvenient operation and large errors were solved, enabling fast and accurate sensor measurement by a single person, thus improving safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING LOCOMOTIVE DEPOT OF CHINA RAILWAY BEIJING BUREAU GRP CO LTD
- Filing Date
- 2025-10-24
- Publication Date
- 2026-07-24
AI Technical Summary
In the existing technology, the measurement process of electric locomotive vehicle sensors is inconvenient to operate and requires the cooperation of multiple people, resulting in large errors, wasted manpower, and safety hazards.
A special tool was designed, comprising a crossbar, a measuring ruler, and a measuring plate. The two ends of the crossbar are attached to the rail, the measuring ruler is set vertically, and the measuring plate slides against the sensing surface of the vehicle sensor. The distance between the vehicle sensor and the rail surface is calculated by reading the height through the measuring ruler.
It enables single-person operation, simplifies the measurement process, reduces labor intensity, and improves measurement accuracy and safety.
Smart Images

Figure CN224552266U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of vehicle sensor measurement technology, specifically relating to a special tool for measuring vehicle sensors in electric locomotives. Background Technology
[0002] To ensure the safe and stable passage of electric locomotives through phase-splitting zones, an automatic phase-splitting control system is typically used. This system includes ground sensors buried before and after the phase-splitting zone, as well as vehicle sensors mounted on the locomotive. The vehicle sensors receive magnetic field signals from the ground sensors. As the locomotive approaches the phase-splitting zone, the sensors sequentially detect signals from different magnets. The vehicle sensors transmit the received signals to the main control system, which then performs corresponding operations based on the signal type to ensure the normal opening and closing of the locomotive's main circuit breaker. Passing through a phase-splitting zone while energized is strictly prohibited.
[0003] To ensure stable data exchange between the vehicle sensor and the ground sensor, the distance between the vehicle sensor and the rail surface needs to be checked regularly. Therefore, measuring the height of the vehicle sensor is a key aspect of daily maintenance of electric locomotives. The measurement process requires checking the height of the sensor's sensing surface from the rail surface. Because the vehicle sensor and the rail surface are not vertically aligned, during measurement, one operator needs to extend a steel ruler outward from the rail surface to below the vehicle sensor, while another operator uses a steel ruler to measure the distance between the sensor's sensing surface and the extended steel ruler. This operation is inconvenient and wastes manpower. Furthermore, the measured distance from the rail surface has significant errors and can pose a safety hazard to locomotive operation. Utility Model Content
[0004] This utility model provides a special tool for measuring electric locomotive vehicle sensors, which aims to solve the problem of inconvenient operation of electric locomotive vehicle sensors during measurement in the prior art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a special tool for measuring sensors in electric locomotives, comprising: A crossbar, one side of which is provided with an overlapping surface for abutting against the rail surface; Two measuring rulers are provided, which are installed at both ends of the crossbar and are perpendicular to the overlapping surface. A measuring plate is slidably mounted on the crossbar in a direction perpendicular to the overlapping surface and located at the measuring ruler. The measuring plate is used to abut against the sensing surface of the vehicle sensor.
[0006] In one possible implementation, a slot for mounting the measuring ruler is provided at one end of the measuring plate, and the measuring ruler is slidably disposed inside the slot.
[0007] In one possible implementation, the bottom end of the measuring ruler is hinged to the crossbar, and the crossbar is threaded with a fastener for pressing the measuring ruler onto the crossbar.
[0008] In one possible implementation, both ends of the crossbar are threadedly connected to a plurality of the fixing members, and the plurality of fixing members are spaced apart along the length direction of the crossbar.
[0009] In one possible implementation, a support rod is protruding from the bottom side of the crossbar, the overlapping surface is located on the support rod, and the support rod is perpendicular to the crossbar.
[0010] In one possible implementation, a connecting rod is fixedly mounted on the support rod, the connecting rod passing through the crossbar, and the connecting rod is threaded with a fastener for abutting against the top surface of the crossbar.
[0011] In one possible implementation, a level for measuring the horizontality of the crossbar is also installed at the middle of the crossbar.
[0012] In one possible implementation, the top surface of the crossbar is arranged parallel to the overlapping surface at intervals, and the bottom surface of the measuring plate is arranged parallel to the top surface of the measuring plate, and both are arranged perpendicular to the slots on the measuring plate.
[0013] The solution shown in this application embodiment, compared with the prior art, features a crossbar with two overlapping surfaces at its bottom. The distance between the two overlapping surfaces is the same as the distance between the two rails corresponding to the electric locomotive, allowing the two overlapping surfaces on the crossbar to overlap the rail surfaces of the two rails respectively. A measuring ruler is also installed on the outer side of the overlapping surfaces of the two crossbars along the length of the crossbar. In the working state, the measuring ruler is perpendicular to the overlapping surfaces and extends upwards along the crossbar. A measuring plate is also slidably mounted on the crossbar, located at the measuring ruler, and its upward movement height can be measured using the measuring ruler. In this application, when detecting the height of the vehicle sensor relative to the rail surface, the crossbar can be overlapped with the rail surfaces of the two rails. The position of the crossbar can be adjusted so that the measuring plate can abut against the sensing surface of the vehicle sensor. Then, as the measuring plate is pushed upwards, it rests against the sensing surface at the bottom of the vehicle sensor. The value of the corresponding measuring scale on the top surface of the measuring plate is read. The value of the relative position of the overlapping surface and the measuring scale is known, thus the distance between the sensing surface of the vehicle sensor and the rail surface can be calculated. The operation is simple and can be completed by a single person, reducing the labor intensity of the operator. Attached Figure Description
[0014] Figure 1 A schematic diagram of the structure of the special tool for measuring electric locomotive sensors provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the support rod installation structure provided in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the installation structure of the measuring ruler provided in an embodiment of the present utility model.
[0015] Explanation of reference numerals in the attached figures: 1. Crossbar; 2. Measuring ruler; 3. Measuring plate; 4. Fixture; 5. Support rod; 51. Connecting rod; 52. Fastener; 6. Level; 7. Rail; 8. Vehicle sensor. Detailed Implementation
[0016] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0017] Please refer to the following: Figures 1 to 3 The present invention provides a special tool for measuring electric locomotive sensors. The tool includes a crossbar 1, measuring rulers 2, and a measuring plate 3. One side of the crossbar 1 has an overlapping surface for contacting the rail surface. Two measuring rulers 2 are installed at both ends of the crossbar 1, with their length directions perpendicular to the overlapping surface. The measuring plate 3 is slidably mounted on the crossbar 1 along a direction perpendicular to the overlapping surface and is located at the measuring rulers 2. The measuring plate 3 is used to contact the sensing surface of the locomotive sensor 8.
[0018] The electric locomotive sensor measuring tool provided in this embodiment, compared with the prior art, features a crossbar 1 with two overlapping surfaces at its bottom. The distance between the two overlapping surfaces is the same as the distance between the two rails 7 corresponding to the electric locomotive, allowing the two overlapping surfaces on the crossbar 1 to overlap the rail surfaces of the two rails 7 respectively. A measuring ruler 2 is also installed on the outer side of the overlapping surfaces of the two crossbars 1 along the length of the crossbar 1. In the working state, the measuring ruler 2 is perpendicular to the overlapping surfaces and extends upwards on the crossbar 1. A measuring plate 3 is also slidably mounted on the crossbar 1. The measuring plate 3 is located at the measuring ruler 2, and the height of the measuring plate 3 as it moves upwards can be measured using the measuring ruler 2. In this application, when detecting the height of the sensor 8 relative to the rail surface, the crossbar 1 can be overlapped with the rail surfaces of the two rails 7. The position of the crossbar 1 can be adjusted so that the measuring plate 3 can abut against the sensing surface of the sensor 8. Then, when the measuring plate 3 is pushed upward, it abuts against the sensing surface at the bottom of the vehicle sensor 8. The value of the measuring ruler 2 corresponding to the top surface of the measuring plate 3 is read. The value of the relative position of the overlapping surface and the measuring ruler 2 is known, so the distance between the sensing surface of the vehicle sensor 8 and the rail surface can be calculated. The operation is simple and can be completed by a single person, reducing the labor intensity of the operator.
[0019] Preferably, in this embodiment, the 0 mark on the measuring ruler 2 is flush with the top surface of the crossbar 1, which facilitates the calculation of the height of the measuring plate 3.
[0020] Specifically, in this embodiment, the bottom overlapping surface of the crossbar 1 is used to place it on the rail 7, thereby improving the stability of the crossbar installation and preventing the crossbar from tilting.
[0021] In some embodiments, the measuring ruler 2 described above can be as follows: Figure 3 The structure shown. See also Figure 3 The bottom end of the measuring ruler 2 is hinged to the crossbar 1, and a fixing piece 4 for pressing the measuring ruler 2 onto the crossbar 1 is threadedly connected to the crossbar 1. A hinge shaft for mounting the measuring ruler 2 is fixedly installed on the outside of the crossbar 1. The hinge shaft is the fixing piece 4, and one end of the measuring ruler 2 is hinged to the hinge shaft, allowing the measuring ruler 2 to swing on the crossbar 1. During use, the measuring ruler 2 can be swung to a position perpendicular to the crossbar 1. After use, the measuring ruler 2 can be swung back onto the crossbar 1 for easy storage of the entire tool set, while also preventing bending and damage to the measuring ruler 2 during storage, thus improving its safety.
[0022] Preferably, in this embodiment, a limiting rod is also provided on the side of the hinge axis of the measuring ruler 2 on the crossbar 1. When the measuring ruler 2 abuts against the limiting rod, the measuring ruler 2 is in a state perpendicular to the crossbar 1, which makes it easy to adjust the measuring ruler 2 to the working state.
[0023] Specifically, in this embodiment, the fixing member 4 is a bolt, and the measuring ruler 2 is rotatably set in the smooth rod part in the middle of the fixing member 4. The fixing member 4 can press the measuring ruler 2 to the side of the crossbar 1 to achieve the fixing between the measuring ruler 2 and the crossbar 1.
[0024] Specifically, in this embodiment, the measuring plate 3 can be preferentially installed on the measuring ruler 2. During the measurement process, the measuring ruler 2 can be rotated so that the measuring ruler 2 is at a 90° right angle to the crossbar 1, and the top surface of the measuring plate 3 can be pressed against the sensing surface of the vehicle sensor 8 to complete the measurement.
[0025] In some embodiments, the crossbar 1 may be as follows: Figure 3 The structure shown. See also Figure 3 Multiple fasteners 4 are threaded to both ends of the crossbar 1, and these fasteners 4 are spaced apart along the length of the crossbar 1. The multiple fasteners 4 are threaded to both ends of the crossbar 1 at the same height, allowing the installation position of the measuring ruler 2 to be adjusted according to the position of the vehicle sensor 8 on the electric locomotive. The multiple fasteners 4 also serve to limit the flipping of the measuring ruler 2. When the measuring ruler 2 is retracted onto the crossbar 1, it rests against the remaining fasteners 4, completing the retraction of the measuring ruler 2.
[0026] Preferably, in this embodiment, the crossbar 1 is a square tube, and a nut that is threadedly connected to the fixing member 4 is fixedly installed on the inner wall of the crossbar 1, thereby facilitating the installation of the fixing member 4.
[0027] In some embodiments, the crossbar 1 may be as follows: Figure 2 The structure shown. See also Figure 2 A support rod 5 protrudes from the bottom side of the crossbar 1, with its overlapping surface located on the support rod 5. The support rod 5 is perpendicular to the crossbar 1. The support rod 5 is used to place the crossbar 1 onto the rail surface. When the support rod 5 overlaps the rail surface, its length direction is parallel to the length direction of the rail, thereby increasing the contact area with the rail surface and ensuring the stability of the crossbar 1's installation position.
[0028] In some embodiments, the support rod 5 may be adopted as follows: Figure 2 The structure shown. See also Figure 2A connecting rod 51 is fixedly installed on the support rod 5, passing through the crossbar 1, and a fastener 52 is threaded onto the connecting rod 51 to abut against the top surface of the crossbar 1. The connecting rod 51 is fixedly installed in the middle of the support rod 5, and a through hole for installing the connecting rod 51 is provided on the crossbar 1. The connecting rod 51 is perpendicular to the support rod 5 and passes through the through hole on the crossbar 1, allowing the support rod 5 to rotate on the crossbar 1 about the axis of the connecting rod 51. After use, the support rod 5 can be stored parallel to the crossbar 1, saving space for the entire tool set and facilitating storage.
[0029] Specifically, in this embodiment, the fastener 52 is a nut. By rotating the fastener 52, the support rod 5 can be tightened onto the crossbar 1, so that the support rod 5 can be stably attached to the bottom side of the crossbar 1, ensuring the stability of the distance between the bottom surface of the support rod 5 and the top surface of the crossbar 1.
[0030] In some embodiments, the crossbar 1 may be as follows: Figure 1 The structure shown. See also Figure 1 A level 6 for measuring the horizontality of the crossbar 1 is also installed in the middle of the crossbar 1. After the two ends of the crossbar 1 are placed on the rail surface, the horizontality of the level 6 can be observed through the level 6, which makes it easy to adjust the crossbar 1 to keep it horizontal and ensure the stability of the measurement data.
[0031] In some embodiments, the measuring ruler 2 described above can be as follows: Figure 2 , Figure 3 The structure shown. See also... Figure 2 , Figure 3 The top surface of the crossbar 1 is parallel to the overlapping surface, and the bottom surface of the measuring plate 3 is parallel to the top surface of the measuring plate 3, both perpendicular to the slots on the measuring plate 3. The bottom surface of the measuring plate 3 is parallel to the top surface of the crossbar 1 and perpendicular to the slots. When adjusting the measuring ruler 2 to be perpendicular to the crossbar 1, the measuring plate 3 can be fitted onto the measuring ruler 2, and then the bottom surface of the measuring plate 3 can be attached to the top surface of the crossbar 1. This ensures the verticality of the measuring ruler 2. The measuring ruler 2 is then fixed to the crossbar 1 using the fastener 4. The operation is simple and convenient.
[0032] Specifically, in this embodiment, the top surface of the measuring plate 3 and the slot on the measuring plate 3 are arranged perpendicularly to each other. Therefore, when the measuring plate 3 abuts against the sensing surface of the vehicle sensor 8, the measuring plate 3 and the measuring ruler 2 are perpendicular to each other, and the position of the top surface of the measuring plate 3 on the scale of the measuring ruler 2 corresponds to the position of the sensing surface of the vehicle sensor 8 and the scale on the measuring ruler 2. This facilitates observation of the corresponding values on the measuring plate 3 and the measuring ruler 2, ensuring the accuracy of the measurement values.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A special tool for measuring sensors in electric locomotives, characterized in that, include: A crossbar (1) has an overlapping surface on one side for abutting against the rail surface; Two measuring rulers (2) are installed at both ends of the crossbar (1), and the length direction of the two measuring rulers (2) is perpendicular to the overlapping surface. The measuring plate (3) is slidably disposed on the crossbar (1) in a direction perpendicular to the overlapping surface and located at the measuring ruler (2). The measuring plate (3) is used to abut against the sensing surface of the vehicle sensor (8).
2. The special tool for measuring electric locomotive sensors as described in claim 1, characterized in that, A slot for mounting the measuring ruler (2) is provided at one end of the measuring plate (3), and the measuring ruler (2) is slidably disposed inside the slot.
3. The special tool for measuring electric locomotive sensors as described in claim 1, characterized in that, The bottom end of the measuring ruler (2) is hinged to the crossbar (1), and a fastener (4) for pressing the measuring ruler (2) onto the crossbar (1) is threaded onto the crossbar (1).
4. The special tool for measuring electric locomotive sensors as described in claim 3, characterized in that, Both ends of the crossbar (1) are threadedly connected to a plurality of the fixing members (4), and the plurality of fixing members (4) are spaced apart along the length direction of the crossbar (1).
5. The special tool for measuring electric locomotive sensors as described in claim 1, characterized in that, A support rod (5) is protruding from the bottom side of the crossbar (1), the overlapping surface is located on the support rod (5), and the support rod (5) is perpendicular to the crossbar (1).
6. The special tool for measuring electric locomotive sensors as described in claim 5, characterized in that, A connecting rod (51) is fixedly installed on the support rod (5). The connecting rod (51) passes through the crossbar (1) and a fastener (52) is threaded onto the connecting rod (51) for abutting against the top surface of the crossbar (1).
7. The special tool for measuring electric locomotive sensors as described in claim 1, characterized in that, A level (6) for measuring the levelness of the crossbar (1) is also installed in the middle of the crossbar (1).
8. The special tool for measuring electric locomotive sensors as described in claim 2, characterized in that, The top surface of the crossbar (1) is arranged parallel to the overlapping surface at intervals, and the bottom surface of the measuring plate (3) is arranged parallel to the top surface of the measuring plate (3), and both are arranged perpendicular to the slots on the measuring plate (3).