Railway wagon bearing top pickaxe rotation inspection tool
By designing a rotating inspection fixture for railway freight car bearing top picks, and utilizing a friction wheel and elastic telescopic arm structure, the problem of laborious and uneven bearing rotation inspection was solved, achieving stable bearing rotation and efficient fault diagnosis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, inspecting the rotation of railway freight car bearings is laborious and uneven, leading to errors in fault diagnosis and affecting maintenance efficiency and smooth transportation organization.
Design a tooling for inspecting the rotation of a top pick on railway freight car bearings, including a top pick and a bearing rotation instrument. By using a friction wheel through an elastic telescopic arm and a rocker arm structure, the bearing can be rotated stably for inspection, avoiding uneven force and excessive damage when rotating directly.
The bearing rotates evenly by means of stable friction between the friction wheel and the bearing, thereby improving inspection efficiency, reducing manpower consumption, and minimizing fault diagnosis errors.
Smart Images
Figure CN224051588U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of railway train maintenance technology, concretely is a railway freight car bearing top pickaxe rotation inspection frock. BACKGROUND
[0002] In recent years, due to the continuous updating of 5T equipment and the continuous improvement of railway freight car running speed, the number of THDS forecast hot axle fault increases year by year, and when on-site inspection is confirmed, the bearing needs to be rotated, the side frame guide frame at the train wheel needs to be lifted first, the bearing is separated from the bearing outer ring, the worker drives the bearing to rotate to judge whether the bearing is stuck, abnormal sound and other conditions, the whole operation process is more laborious, and the rotation speed and force are uneven, and there is a certain error in fault judgment, thereby affecting the maintenance efficiency of railway freight car and the smoothness of transportation organization. UTILITY MODEL CONTENTS
[0003] The utility model is to provide a railway freight car bearing top pickaxe rotation inspection frock to solve the problem in the above background art.
[0004] To achieve the above object, the utility model provides the following technical scheme: a railway freight car bearing top pickaxe rotation inspection frock, including oil pickaxe and bearing rotation instrument, the bearing rotation instrument is fixedly connected on the lifting end of the oil pickaxe, the bearing rotation instrument includes fixed arm, elastic telescopic arm, wheel seat, friction wheel and rocker, one end of the fixed arm is fixedly connected on the lifting end of the oil pickaxe, the other end of the fixed arm is connected with the elastic telescopic arm, the other end of the elastic telescopic arm is connected with the wheel seat, the friction wheel is rotatably connected on the wheel seat, and the center of the friction wheel is provided with a card hole for clamping the rocker, and the friction wheel can be driven to rotate by clamping one end of the rocker in the card hole and rotating the rocker.
[0005] Further, a pair of connecting blocks distributed at an obtuse angle in the center line of the vertical plane are arranged on the wheel seat, the fixed arm includes a vertically arranged connecting arm and a fixed ring fixedly arranged at the top of the connecting arm, the fixed ring is fixedly connected on the lifting end of the oil pickaxe, the lower part of the connecting arm is rotatably connected with one end of the elastic telescopic arm, the other end of the elastic telescopic arm is rotatably connected with one of the connecting blocks, and the other connecting block is rotatably connected on the connecting arm.
[0006] The vertical connecting arm, elastic telescopic arm and wheel seat are connected into a triangular structure, so that the friction wheel is more stable when supporting and driving the train bearing to rotate.
[0007] Preferably, the elastic telescopic arm comprises a first sleeve, a second sleeve and a spring, the second sleeve is sleeved in the first sleeve, and the spring is fixedly connected at two ends on the inner bottom surface of the first sleeve and the inner top surface of the second sleeve respectively.
[0008] The elastic telescopic arm is simple in structure and low in manufacturing cost.
[0009] Further, the oil pick is fixedly provided with a rubber pad on the bottom, the top of the lifting end and the outer ring of the friction wheel.
[0010] The oil pick is prevented from sliding and collapsing when lifting the side frame guide frame of the train, and the friction wheel is prevented from sliding and idling when driving the train bearing to rotate.
[0011] Compared with the prior art, the utility model has the advantages that:
[0012] The utility model discloses a railway freight car bearing top pick rotating inspection tool connecting structure, which comprises an oil pick, a bearing rotating instrument, a side frame guide frame, a railway freight car bearing, a rubber pad, a pressure roller, a wheel and a bearing saddle clamp, wherein the oil pick is fixedly connected with the bearing rotating instrument, the bearing rotating instrument is fixedly connected with the side frame guide frame, the railway freight car bearing is fixedly connected with the bearing saddle clamp, the rubber pad is fixedly arranged on the bottom of the oil pick, the top of the lifting end and the outer ring of the friction wheel, the pressure roller is fixedly connected with the wheel, the wheel is rotatably connected with the elastic telescopic arm, the elastic telescopic arm is rotatably connected with the friction wheel, and the friction wheel is rotatably connected with the rocker. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is the railway freight car bearing top pick rotating inspection tool connecting structure schematic view provided by the utility model embodiment;
[0014] Fig. 2 It is the railway freight car bearing top pick rotating inspection tool whole structure schematic view provided by the utility model embodiment;
[0015] Fig. 3 It is the rocker structure schematic view provided by the utility model embodiment;
[0016] In the drawing, 1 is an oil pick, 2 is a bearing rotating instrument, 3 is a side frame guide frame, 4 is a railway freight car bearing, 5 is a rubber pad, 6 is a pressure roller, 7 is a wheel, 8 is a bearing saddle clamp, 9 is a bearing saddle, 21 is a fixed arm, 22 is an elastic telescopic arm, 23 is a wheel seat, 24 is a friction wheel, 25 is a rocker, 211 is a connecting arm, 212 is a fixed ring, 221 is a first sleeve, 222 is a second sleeve, 223 is a spring, 231 is a connecting block and 241 is a bayonet. DETAILED DESCRIPTION
[0017] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.
[0018] Please refer to Figs. 1-3 The utility model provides a technical scheme: a railway freight car bearing top pickaxe rotation inspection frock, including oil pickaxe 1 and bearing rotation appearance 2, bearing rotation appearance 2 fixedly connected in the lifting end of oil pickaxe 1.
[0019] The bearing rotation appearance 2 includes a fixed arm 21, an elastic telescopic arm 22, a wheel seat 23, a friction wheel 24 and a rocker 25. The fixed arm 21 includes a vertically arranged connecting arm 211 and a fixed ring 212 fixedly arranged on the top of the connecting arm 211. The elastic telescopic arm 22 includes a first sleeve 221, a second sleeve 222 and a spring 223. The second sleeve 222 is slidingly sleeved in the first sleeve 221, and the spring 223 is fixedly connected at both ends to the inner bottom surface of the first sleeve 221 and the inner top surface of the second sleeve 222 respectively.
[0020] The fixed ring 212 is fixedly connected to the lifting end of the oil pickaxe 1. The lower part of the connecting arm 211 is rotatably connected to one end of the elastic telescopic arm 22 through a rotating shaft. The wheel seat 23 is provided with a pair of connecting blocks 231 distributed at an obtuse angle with respect to the center line in the vertical plane. The other end of the elastic telescopic arm 22 is rotatably connected to one of the connecting blocks 231 through a rotating shaft, and the other connecting block 231 is rotatably connected to the connecting arm 211 through a rotating shaft.
[0021] The friction wheel 24 is rotatably connected to the wheel seat 23 through a bearing, and the center of the friction wheel 24 is provided with a bayonet 241 for clamping the rocker 25. By clamping one end of the rocker 25 in the bayonet 241 and then rotating the rocker 25, the friction wheel 24 can be driven to rotate.
[0022] In order to prevent the oil pickaxe 1 from sliding and collapsing when lifting the side frame guide 3 of the train, and to prevent the friction wheel 24 from sliding and idling when driving the railway freight car bearing 4 to rotate, rubber pads 5 are fixedly arranged on the bottom of the oil pickaxe 1, the top of the lifting end of the oil pickaxe 1 and the outer ring of the friction wheel 24.
[0023] In the specific implementation process, when the railway freight car bearing needs to be inspected, first, the railway freight car wheel 7 is fixed by the pressure wheel device 6 to prevent the wheel 7 from moving upward when the oil pick 1 is picked, and in the embodiment, the pressure wheel device 6 includes a base and a pressure wheel bolt connected above the base by threads, the base of the pressure wheel device 6 is clamped on the rail, and the wheel 7 is pressed on the rail by rotating the pressure wheel bolt to make the bottom of the pressure wheel bolt resist on the lower rail along the wheel 7; then the bearing saddle clamp 8 is used to clamp the bearing saddle 9 on the side frame guide frame 3, the bearing saddle clamp 8 includes a hook and a tensioning bolt vertically connected on the top of the hook by threads, the lower part of the hook is hooked on the lower part of the bearing saddle 9, and the bearing saddle 9 is pulled up and clamped by rotating the tensioning bolt and the lower part of the tensioning bolt resisting on the side frame guide frame 3 along.
[0024] Then place the railway freight car bearing top pick rotation inspection tool, make the oil pick 1 lifting end below the outer edge of the side frame guide frame 3, make the friction wheel 24 below the railway freight car bearing 4 to be inspected, and then lift the side frame guide frame 3 by the oil pick 1, in the process of lifting the side frame guide frame 3, the bearing rotation instrument 2 rises with the lifting end of the oil pick 1, the friction wheel 24 resists on the outer ring of the railway freight car bearing 4, and when the oil pick 1 continues to rise, the elastic expansion arm 22 is compressed, which can not only ensure that the friction wheel 24 has enough friction force to drive the railway freight car bearing 4 to rotate, but also prevent the oil pick 1 from rising too high to damage the railway freight car bearing 4, when the side frame guide frame 3 is lifted, the rocker 25 is inserted into the bayonet 241 to rotate the friction wheel 24 at a uniform speed, the railway freight car bearing 4 is driven to rotate by the friction wheel 24, and the sound of the railway freight car bearing 4 is judged to determine whether the railway freight car bearing 4 is stuck, abnormal sound or the like.
[0025] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A railway car bearing cup rotation inspection tool, characterized in that, The application relates to a bearing rotating instrument for an oil pick, which is fixedly connected to the lifting end of the oil pick and comprises a fixed arm, an elastic telescopic arm, a wheel seat, a friction wheel and a rocker.
2. The railway car bearing jack rod rotation inspection tool of claim 1, wherein, A pair of connecting blocks are arranged on the wheel seat and are distributed at an obtuse angle with the center line in a vertical plane; the fixed arm comprises a vertically arranged connecting arm and a fixed ring fixedly arranged on the top of the connecting arm; the fixed ring is fixedly connected to the lifting end of the oil pick; the lower part of the connecting arm is rotatably connected to one end of the elastic telescopic arm through a rotating shaft; the other end of the elastic telescopic arm is rotatably connected to one of the connecting blocks through a rotating shaft; and the other connecting block is rotatably connected to the connecting arm.
3. The railway car bearing jack rod rotation inspection tool of claim 1, wherein, The elastic telescopic arm comprises a first sleeve, a second sleeve and a spring; the second sleeve is slidably sleeved in the first sleeve; and the spring is fixedly connected to the inner bottom surface of the first sleeve and the inner top surface of the second sleeve.
4. The railway car bearing jack rod rotation inspection tool of claim 1, wherein, Rubber pads are fixedly arranged on the bottom of the oil pick, the top of the lifting end of the oil pick and the outer ring of the friction wheel.