Locomotive axle box body inner hole contact surface detection device
By using an automated testing device that controls the movement of the testing probe with a telescopic cylinder and a rotary motor, combined with a laser displacement sensor, the problems of low accuracy and low efficiency in traditional testing methods are solved. This enables high-precision testing of the contact surface of the inner hole of the locomotive axle box, ensuring the accuracy and efficiency of the testing.
Patent Information
- Application Number
- CN202520558783.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Traditional methods for inspecting the inner bore of locomotive axle boxes rely on manual visual inspection and simple measuring tools, which suffer from low inspection accuracy, low efficiency, and strong subjectivity.
An automated inspection device is adopted, which uses a telescopic cylinder to control the rotating component and a rotating motor to drive the connecting rod. Combined with a laser displacement sensor as the inspection probe, it can achieve all-round inspection and automatically control the movement of the inspection probe in the inner hole, thereby improving the inspection accuracy and efficiency.
It enables high-precision automated inspection of the contact surfaces of the inner bore of locomotive axle boxes, reduces human error, ensures inspection accuracy and efficiency, and improves the quality and safety of locomotive axle boxes.
Smart Images

Figure CN223807818U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to rail transit equipment detection technical field, concretely is a locomotive axle box body hole contact surface detection device. BACKGROUND
[0002] The locomotive axle box body is one of the key components of the locomotive bogie, and the precision and quality of the hole body contact surface directly affect the running performance and safety of the locomotive.
[0003] On the railway locomotive and vehicle, the component is sleeved on the axle neck and connects the wheel set and the bogie frame or the two-axle vehicle body, which is simply referred to as an axle box. Its function is to transmit the weight and load of the vehicle body to the wheel set, lubricate the axle neck, reduce friction, and reduce running resistance. The axle box device is divided into two categories: sliding bearing axle box device and rolling bearing axle box device according to the type of bearing used. Early locomotives and vehicles used sliding bearing axle box devices, and rolling bearing axle box devices began to be used in the early 20th century, and have gradually replaced sliding bearing axle box devices.
[0004] On the railway locomotive and vehicle, its function is to transmit the weight and load of the vehicle body to the wheel set, lubricate the axle neck, reduce friction, and reduce running resistance. The axle box device is divided into two categories: sliding bearing axle box device and rolling bearing axle box device according to the type of bearing used. Early locomotives and vehicles used sliding bearing axle box devices, and rolling bearing axle box devices began to be used in the early 20th century, and have gradually replaced sliding bearing axle box devices. China's railway passenger cars and diesel locomotives and electric locomotives have all adopted rolling bearing axle box devices, and freight cars have partially adopted them. The components that bear the load and store the axle oil are used to contain the axle neck and other parts, which were originally made of cast iron and are now commonly made of cast steel. The axle box body not only transmits the load from the frame to the axle neck, but also bears the load when the bearing is repaired or replaced by a jack from the bottom, so it must have sufficient strength.
[0005] The traditional detection method mainly relies on manual visual inspection and simple measuring tools, which has the problems of low detection accuracy, low efficiency and strong subjectivity, therefore, a locomotive axle box body hole contact surface detection device is needed to improve the above problems. UTILITY MODEL CONTENTS
[0006] In order to solve the problem that the traditional detection method mainly relies on manual visual inspection and simple measuring tools, and has the problems of low detection accuracy, low efficiency and strong subjectivity, the purpose of the utility model is to provide a locomotive axle box body hole contact surface detection device to solve the problems raised in the above background technology.
[0007] To achieve the above purpose, the utility model provides the following technical scheme:
[0008] The utility model provides a locomotive axle box body inner hole contact surface detection device, including the main part, the top fixed connection of main part has rotation subassembly and organism loading subassembly,
[0009] The main part includes a bottom plate, the top of which is fixedly connected with a mounting rack, and the top of the mounting rack is provided with a telescopic cylinder;
[0010] The rotation subassembly includes a protective box, the bottom of which is fixedly connected with a backing plate, and the inside of the protective box is provided with a rotary motor, the output end of which is fixedly connected with a connecting rod, and the side of the connecting rod is provided with a detection probe;
[0011] The organism loading subassembly includes a locomotive axle box body, the side of which is fixedly connected with a shaft tube, and the inside of the shaft tube is provided with an inner hole body.
[0012] As a preferred scheme of the utility model, the top of the bottom plate is fixedly connected with a sliding groove, the top of which is slidingly connected with a sliding plate, and the sliding plate is fixedly connected with the backing plate.
[0013] As a preferred scheme of the utility model, the sliding groove and the sliding plate are provided with two, and the material of the backing plate is PVC.
[0014] As a preferred scheme of the utility model, the output end of the telescopic cylinder is fixedly connected with the protective box, and the detection probe is a laser displacement sensor.
[0015] As a preferred scheme of the utility model, the connecting rod and the detection probe can extend to the inside of the inner hole body, and the bottom of the shaft tube is fixedly connected with a first support and a second support.
[0016] As a preferred scheme of the utility model, the top of the bottom plate is fixedly connected with a supporting groove frame, and the supporting groove frame is provided with three.
[0017] As a preferred scheme of the utility model, the inside of the bottom plate is fixedly connected with a reinforcing rod, and the reinforcing rod is provided with a plurality of.
[0018] As a preferred scheme of the utility model, the side of the bottom plate is provided with a mounting hole plate, and the mounting hole plate is provided with four.
[0019] Compared with the prior art, the utility model has the beneficial effects that:
[0020] 1、In the utility model, the telescopic cylinder is used to control the overall sliding of the rotation subassembly, thereby the position of the detection probe can be advanced, and the detection probe on the side of the connecting rod is rotated by the rotary motor, thereby the movement of the detection probe in the inner hole body is controlled, omnidirectional detection is realized, the automatic detection means improves the detection precision and efficiency, and the quality and safety of the locomotive axle box body are ensured.
[0021] 2、 The utility model discloses a laser displacement sensor is used as detection probe, and the laser displacement sensor is selected, has the characteristics of high accuracy and non - contact measurement, can be used for measuring the size, shape and surface roughness of inner hole body contact surface, improves the detection accuracy, reduces artificial error, accurately control detection, and the moving track of detection probe is improved detection accuracy and efficiency through automation detection means, ensures the quality and safety of locomotive axle box body. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is the whole structure schematic diagram of the utility model;
[0023] Figure 2 It is the structure schematic diagram of the machine body loading assembly of the utility model;
[0024] Figure 3 It is the structure schematic diagram of the rotating assembly of the utility model;
[0025] Figure 4 It is the structure schematic diagram of the utility model's propelling assembly.
[0026] In the drawing: 1, main body;101, bottom plate;102, reinforcing rod;103, sliding groove;104, sliding plate;105, mounting bracket;106, telescopic cylinder;107, mounting hole plate;2, rotating assembly;201, protective box;202, backing plate;203, rotating motor;204, connecting rod;205, detection probe;3, machine body loading assembly;301, locomotive axle box body;302, shaft pipe;303, inner hole body;304, first support;305, second support;306, bearing groove frame. DETAILED DESCRIPTION
[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0028] Embodiment, please refer to Figures 1-4 The utility model provides a technical scheme:
[0029] A locomotive axle box body inner hole contact surface detection device, including main body 1, the top of main body 1 is fixedly connected with rotating assembly 2 and machine body loading assembly 3.
[0030] In this embodiment as Figure 1 、 Figure 2 and Figure 3As shown, the main body 1 includes the bottom plate 101, the top of the bottom plate 101 is fixedly connected with the mounting frame 105, the top of the mounting frame 105 is provided with the telescopic cylinder 106, the rotating assembly 2 includes the protective box 201, the bottom of the protective box 201 is fixedly connected with the pad plate 202, the inside of the protective box 201 is provided with the rotating motor 203, the output end of the rotating motor 203 is fixedly connected with the connecting rod 204, the side of the connecting rod 204 is provided with the detection probe 205, the machine body loading assembly 3 includes the locomotive axle box body 301, the side of the locomotive axle box body 301 is fixedly connected with the shaft tube 302, the inside of the shaft tube 302 is provided with the inner hole body 303, the telescopic cylinder 106 is used for controlling the overall sliding of the rotating assembly 2, so as to push the position of the detection probe 205, and the rotating motor 203 drives the detection probe 205 on the side of the connecting rod 204 to rotate, so as to control the movement of the detection probe 205 in the inner hole body 303, realize omnibearing detection, and the automatic detection means improves the detection precision and efficiency, and ensures the quality and safety of the locomotive axle box body.
[0031] Among them, the top of the bottom plate 101 is fixedly connected with the chute 103, the top of the chute 103 is slidably connected with the sliding plate 104, the sliding plate 104 is fixedly connected with the pad plate 202, the chute 103 and the sliding plate 104 are provided with two, the material of the pad plate 202 is PVC, the output end of the telescopic cylinder 106 is fixedly connected with the protective box 201, the detection probe 205 selects the laser displacement sensor, the laser displacement sensor is used as the detection probe 205, and the laser displacement sensor has the characteristics of high precision and non-contact measurement, can be used for measuring the size, shape and surface roughness of the inner hole body 303 contact surface, improving the detection precision, reducing the human error, accurately controlling the detection, and the movement track of the detection probe 205 is improved by the automatic detection means to improve the detection precision and efficiency, and ensure the quality and safety of the locomotive axle box body.
[0032] In this embodiment as shown in Figure 1 , Figure 3 and Figure 4 , the connecting rod 204 and the detection probe 205 can extend to the inside of the inner hole body 303, the bottom of the shaft tube 302 is fixedly connected with the first support 304 and the second support 305, the top of the bottom plate 101 is fixedly connected with the supporting groove frame 306, the supporting groove frame 306 is provided with three, the inside of the bottom plate 101 is fixedly connected with the reinforcing rod 102, the reinforcing rod 102 is provided with a plurality of, the side of the bottom plate 101 is provided with the mounting hole plate 107, the mounting hole plate 107 is provided with four, the first support 304 and the second support 305 can be used to support the shaft tube 302, and can be equipped with threads for fixation, so that the locomotive axle box body can be kept stable during detection.
[0033] The utility model discloses a working procedure: when using the locomotive axle box body inner hole contact surface detection device designed in the scheme works, the telescopic control rotating assembly 2 whole is slid in the inside sliding groove 103 with the help of sliding plate 104, thereby can move, can extend detection probe 205 to inner hole body 303 simultaneously, and cooperate the rotation of rotating motor 203, can make detection probe 205 under the control of drive mechanism enter inner hole body 303 contact surface and carry out comprehensive scanning detection, can judge whether the inner hole body 303 contact surface is qualified according to the prearranged standard.
[0034] Although the embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A device for inspecting the contact surface of the inner hole of a locomotive axle box, comprising a main body (1), characterized in that: The top of the main body (1) is fixedly connected with a rotating assembly (2) and a machine body loading assembly (3); The bottom plate (101) is provided with a mounting frame (105) fixedly connected to the top of the bottom plate (101), and a telescopic cylinder (106) is mounted on the top of the mounting frame (105); The rotating assembly (2) comprises a protective box (201), a pad (202) is fixedly connected to the bottom of the protective box (201), a rotating motor (203) is mounted in the protective box (201), an output end of the rotating motor (203) is fixedly connected with a connecting rod (204), and a detection probe (205) is mounted on the side of the connecting rod (204); The machine body loading assembly (3) comprises a locomotive axle box body (301), an axle tube (302) is fixedly connected to the side of the locomotive axle box body (301), and an inner hole body (303) is formed in the inner portion of the axle tube (302).
2. The apparatus of claim 1 wherein, The top of the bottom plate (101) is fixedly connected with a sliding groove (103), the top of the sliding groove (103) is slidably connected with a sliding plate (104), and the sliding plate (104) is fixedly connected with the pad (202).
3. The apparatus of claim 2 wherein, The sliding groove (103) and the sliding plate (104) are provided with two, and the material of the pad (202) is PVC.
4. The apparatus of claim 1 wherein, The output end of the telescopic cylinder (106) is fixedly connected with the protective box (201), and the detection probe (205) is a laser displacement sensor.
5. The apparatus of claim 1 wherein, The connecting rod (204) and the detection probe (205) can extend into the inner portion of the inner hole body (303), and the bottom of the axle tube (302) is fixedly connected with a first support (304) and a second support (305).
6. The apparatus of claim 1 wherein, The top of the bottom plate (101) is fixedly connected with a supporting groove frame (306), and the supporting groove frame (306) is provided with three.
7. The apparatus of claim 1 wherein, The inner portion of the bottom plate (101) is fixedly connected with a reinforcing rod (102), and the reinforcing rod (102) is provided with a plurality of reinforcing rods.
8. The apparatus of claim 3 wherein, The side of the bottom plate (101) is provided with a mounting hole plate (107), and the mounting hole plate (107) is provided with four mounting hole plates.