Device for measuring bearing clearance of axle box
By designing a measuring device with a magnetic base and a reference baffle, the problem of inaccurate measurement caused by the contact between the digital depth gauge and the wheel spoke was solved, achieving stable and accurate measurement of the axle box bearing clearance and ensuring the quality of axle box assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-10
AI Technical Summary
In the existing technology, when using a digital depth gauge to measure the clearance of axle box bearings, the contact between the measuring point and the arc of the wheel spoke plate leads to inaccurate measurement and cannot guarantee the assembly quality of the axle box.
Design a measuring device that includes a magnetic base and a reference baffle. The magnetic base and a digital depth gauge are used to determine the measurement position. The reference baffle is connected to the column to ensure the stability and accuracy of the measurement reference.
This method enables stable and accurate measurement of bearing clearance in axle boxes, reduces measurement errors, and ensures the quality of axle box assembly.
Smart Images
Figure CN224108759U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to railway locomotive process equipment field, concretely is a device for axle box bearing play measurement. BACKGROUND
[0002] The driving device needs to carry out axle box bearing play measurement after axle box assembly is assembled, since the intermediate shaft bearing play is big (19-20mm or 30-31mm different vehicle type is different), needs to use digital depth gauge measurement. Directly measure using digital depth gauge, and measurement point will contact with wheel width board arc, leads to inaccurate measurement, cannot guarantee the quality of axle box assembly.
[0003] The intermediate shaft axle box bearing play measurement method in prior art is: first, push axle box assembly to the minimum limit position in the direction of wheel, then, the measurement base of digital depth gauge is attached to axle box body vertical stop seat, the digital depth gauge ruler is attached to wheel, and the digital depth gauge value is cleared; then, pull axle box assembly to the maximum distance, the digital depth gauge ruler is attached to wheel again, and the digital depth gauge reading is the axle box bearing play. Since the attachment position of digital depth gauge and wheel is on the excessive arc surface of wheel width board, the reference of each measurement is different, and the measurement result has error. SUMMARY
[0004] The utility model solves the problem of providing a device for axle box bearing play measurement, and overcomes the deficiencies in the prior art.
[0005] To solve the above technical problem, the utility model adopts the technical scheme: a device for axle box bearing play measurement, including magnetic force seat and reference baffle, the reference baffle is connected between the magnetic force seat through two stands, one side surface of the reference baffle has reference flat plate, the reference baffle has opening, one end of the opening is through the top surface of the reference baffle, and the other end extends to the middle part of reference baffle, and the upper surface of the reference flat plate is communicated with the opening.
[0006] Optionally, the reference baffle has a support rib plate, and the support rib plate is connected to the surface of the reference baffle and the bottom of the reference flat plate, respectively.
[0007] Optionally, the top of the magnetic force seat has a longitudinal adjusting seat, the top surface of the longitudinal adjusting seat has an adjusting hole corresponding to the stand, the lower end of the stand extends into the adjusting hole, the front side surface of the longitudinal adjusting seat has an internal thread hole corresponding to the adjusting hole, and the internal thread hole has a limiting bolt.
[0008] Optionally, the top end of the stand has a horizontal adjusting seat, the horizontal adjusting seat has a groove, the groove is through the top surface and the back side door of the horizontal adjusting seat, the front side of the horizontal adjusting seat has a round hole through the groove, a connecting rod is arranged in the round hole, the connecting rod has a connecting block in the groove, one end of the connecting rod is connected with the connecting block, the other end has a limiting end, a spring is sleeved on the connecting rod, and two ends of the spring are fixed with the front side of the horizontal adjusting seat and the limiting end of the connecting rod respectively, and the bottom of the reference baffle is fixed on the connecting block.
[0009] The utility model has the advantages and positive effects that: the structural features of the axle box and the outer side of the wheel are used to determine the measuring position, and the stability and accuracy of measuring the axle box bearing play are realized through the magnetic device and the digital depth gauge. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 is the overall structure schematic diagram of the embodiment of the utility model;
[0011] Figure 2 is the structure schematic diagram of the improved structure;
[0012] Figure 3 is Figure 2 is the structure schematic diagram of the middle part;
[0013] In the figure: 1, reference baffle; 1-1, opening; 2, reference flat plate; 3, support rib plate; 4, stand; 5, magnetic seat; 6, limiting bolt; 7, longitudinal adjusting seat; 8, horizontal adjusting seat; 9, connecting rod; 9-1, spring; 10, connecting block. DETAILED DESCRIPTION
[0014] The utility model is further described in detail below in combination with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and not to limit the utility model. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two components. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0015] As shown in Figure 1 The utility model provides a device for axle box bearing clearance measurement, including magnetic force seat 5 and reference baffle 1, reference baffle 1 with magnetic force seat 5 between through two uprights 4 connection, magnetic force seat 5 can through knob adjustment magnetic force seat whether have magnetism, in magnetic force seat 5 and upright 4 mutual welding, guarantee structural steel under the condition of reducing the weight above magnetic force seat 5, make the whole measurement device keep stable, upright 4 have certain height, can guarantee depth gauge when with wheel brake disc stick to, reference baffle 1 and the top welding of column, baffle back surface processing mill flat guarantee depth gauge measurement base stick to accurate, reference flat plate and reference baffle vertical welding, in reference flat plate lower surface welding has 2 support rib plate, guarantee the stability of reference flat plate. One side of reference baffle 1 has reference flat plate 2, reference baffle 1 has opening 1-1, one end of opening 1-1 is through with the top surface of reference baffle 1, the other end extends to the middle part of reference baffle 1, the width of opening 1-1 guarantees that the depth gauge body can pass smoothly, the upper surface of reference flat plate 2 is communicated with opening 1-1, the upper surface of reference flat plate 2 is milled flat to ensure that the depth gauge is placed horizontally.
[0016] Reference baffle 1 has support rib plate 3, and support rib plate 3 is connected with the surface of reference baffle 1 and the bottom of reference flat plate 2, respectively.
[0017] The above-mentioned device for measuring the clearance of axle box bearings is used as follows: Adjust the magnetic base 5 to a non-magnetic state, place it on the axle box body's primary vertical stop, adjust the knob of the magnetic base 5 to make it magnetic, and ensure it is firmly attached to the axle box body stop; push the axle box assembly towards the wheel direction to the minimum limit position, then place the digital depth gauge on the reference plate 2, so that the digital depth gauge measuring base is in contact with the reference baffle 1, and the digital depth gauge body extends out from the opening 1-1 and is in contact with the wheel brake disc, and the digital depth gauge value is zeroed; then pull the axle box assembly backward to the maximum distance, reconfirm that the digital depth gauge measuring base is in contact with the reference baffle 1, and that the digital depth gauge body extends out and is in contact with the wheel brake disc. The digital depth gauge reading is the axle box bearing clearance.
[0018] like Figure 2 , Figure 3 As shown, the top of the magnetic base 5 has a longitudinal adjustment seat 7. The top surface of the longitudinal adjustment seat 7 has adjustment holes corresponding to the columns 4. The lower end of the columns 4 extends into the adjustment holes. The front side of the longitudinal adjustment seat 7 has internal threaded holes corresponding to the adjustment holes, and a limiting bolt 6 is installed in the internal threaded holes. The height of the top of the column 4 is adjusted by adjusting the depth of the column 4 extending into the adjustment holes, so that the height of the reference baffle 1 can be adjusted according to the size of the object being measured. The limiting bolt is used to fix the column 4 in the adjustment holes.
[0019] The top of the column 4 has a horizontal adjustment seat 8 with a groove that is connected to the top surface and rear door of the horizontal adjustment seat 8. The front side of the horizontal adjustment seat 8 has a circular hole that is connected to the groove, and a connecting rod 9 passes through the circular hole. A connecting block 10 is located in the groove. One end of the connecting rod 9 is connected to the connecting block 10, and the other end has a limiting end. The bottom of the reference baffle 1 is connected to the connecting block 10. A spring 9-1 is sleeved on the connecting rod 9. The two ends of the spring 9-1 are fixed to the front side of the horizontal adjustment seat 8 and the limiting end of the connecting rod 9, respectively. When the spring 9-1 is not subjected to external force, the connecting block 10 extends out from the rear door of the horizontal adjustment seat 8. At this time, the reference baffle 1 is located on the rear side of the horizontal adjustment seat 8 under the action of the connecting block 10. The elastic force of the spring 9-1 ensures that the reference baffle 1 can be closely attached to the workpiece during measurement, so that the reference baffle 1 has a supporting force on the side and will not swing during measurement, thereby reducing measurement error.
[0020] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.
Claims
1. A device for measuring the play of a journal bearing, characterized in that: The utility model discloses a magnetic seat and benchmark baffle, and the benchmark baffle is connected with the magnetic seat through two columns, and the benchmark baffle has a benchmark flat plate on one side surface, and has an opening on the benchmark baffle, and the opening is through the top surface of the benchmark baffle on one end and extends to the middle part of the benchmark baffle on the other end, and the upper surface of the benchmark flat plate is communicated with the opening.
2. The device for measuring the play of the bearings of a journal box according to claim 1, characterized in that: The benchmark baffle has a support rib plate, and the support rib plate is connected with the surface of the benchmark baffle and the bottom of the benchmark flat plate respectively.
3. A device for measuring the play of a journal box bearing according to claim 1 or 2, characterized in that: The top of the magnetic seat has a longitudinal adjusting seat, the top surface of the longitudinal adjusting seat has an adjusting hole corresponding to the column, the lower end of the column extends into the adjusting hole, the front side surface of the longitudinal adjusting seat has an internal thread hole corresponding to the adjusting hole, and the internal thread hole is provided with a limiting bolt.
4. The device for measuring the play of the bearings of a journal box according to claim 3, characterized in that: The top end of the column has a horizontal adjusting seat, the horizontal adjusting seat has a groove, the groove is through the top surface and the rear side door of the horizontal adjusting seat, the front side surface of the horizontal adjusting seat has a circular hole through the groove, a connecting rod is arranged in the circular hole, the groove has a connecting block, one end of the connecting rod is connected with the connecting block, the other end of the connecting rod has a limiting end, a spring is sleeved on the connecting rod, the two ends of the spring are fixed with the front side surface of the horizontal adjusting seat and the limiting end of the connecting rod respectively, and the bottom of the benchmark baffle is fixed on the connecting block. When the spring is not subjected to external force, the connecting block extends out of the rear side door of the horizontal adjusting seat.