CN219038402U - Wheel tile abrasion test device - Google Patents
Wheel tile abrasion test device Download PDFInfo
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- CN219038402U CN219038402U CN202222025484.8U CN202222025484U CN219038402U CN 219038402 U CN219038402 U CN 219038402U CN 202222025484 U CN202222025484 U CN 202222025484U CN 219038402 U CN219038402 U CN 219038402U
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- 238000005299 abrasion Methods 0.000 title claims abstract description 30
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 31
- 238000005259 measurement Methods 0.000 claims 1
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Abstract
The application provides a wheel tile abrasion test device, including telescopic machanism, power transmission mechanism, braking frame and controlling means, wherein, telescopic machanism is connected with power transmission mechanism, one end of power transmission mechanism rotates with fixed hanging seat to be connected, the other end rotates with the braking frame to be connected, thereby keep away from power transmission mechanism's one end and brake shoe on the braking frame are connected, telescopic machanism can drive power transmission mechanism and rotate thereby promote the braking frame and make brake shoe and wheel contact, the position with brake shoe contact on the braking frame is equipped with force measuring device, still be equipped with displacement measuring device on the braking frame, force measuring device, displacement measuring device and telescopic machanism all with controlling means electric connection. The application provides a test device can load the braking load when the train is operated effectively in fact under controlling means's effect to can simulate the mutual wearing and tearing effect of wheel tile when actually braking, obtain the wearing and tearing data between the wheel tile when the sharp circuit of actual operation and the curve circuit braking, the in-process adjustment of test is convenient, extensive applicability.
Description
Technical Field
The utility model relates to the technical field of wheel shoe brake tests of railway wagon bogies, in particular to a wheel shoe abrasion test device.
Background
In railway transportation, the phenomenon of wheel wear of trains has been the most common and problematic problem. The abrasion causes the change of the profile of the wheel rail, the difference of the wheel diameter and the like, which can cause the change of the contact state of the wheel rail and the dynamic performance of the system, and has great influence on the running stability and the safety of the train and the service life of each part of the vehicle track system.
The rail wagon is mainly braked by a basic brake device of a brake shoe, and the rail wagon is mainly abraded by rolling friction between wheel tracks and sliding friction between wheel tiles in the running process. The existing wheel shoe abrasion test bed mainly researches the interaction of a brake shoe and a train theory sword by mutual abrasion of braking by a small-proportion test block of a wheel material and a brake shoe material, and can not effectively load the braking load during train operation.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides the wheel shoe abrasion test device which can effectively load the braking load during the running of a train under the action of a control device, so that the mutual abrasion action of the wheel shoes during actual braking can be simulated, abrasion data between the wheel shoes during the braking of a straight line and a curve line during actual running can be obtained, and the device is convenient to adjust in the test process and has wide applicability.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
the utility model provides a wheel tile abrasion test device, including telescopic machanism, power transmission mechanism, braking frame and controlling means, wherein, telescopic machanism is connected with power transmission mechanism, one end of power transmission mechanism rotates with fixed hanging seat to be connected, the other end rotates with braking frame to be connected, thereby keep away from power transmission mechanism's one end and brake shoe on the braking frame are connected, telescopic machanism can drive power transmission mechanism and rotate thereby promote braking frame and make brake shoe and wheel contact, the position that contacts with the brake shoe on the braking frame is equipped with force measuring device, still be equipped with displacement measuring device on the braking frame, force measuring device, displacement measuring device and telescopic machanism all with controlling means electric connection.
According to the wheel shoe abrasion test device, through the cooperation of the telescopic mechanism, the power transmission mechanism, the braking frame, the force measuring device, the displacement measuring device and the control device, the braking force loading can be transmitted to the brake shoe, the wheel shoe pressure can be fed back through the force measuring device, the brake shoe lateral displacement quantity can be fed back to the control device through the displacement measuring device, the brake load during the actual running of the train can be effectively loaded under the action of the control device by collecting the pressure of the wheel shoe and the change of the brake shoe lateral displacement quantity of the linear and curve lines during the actual running of the train, so that the mutual abrasion action of the wheel shoes during the actual braking can be simulated, the abrasion data between the wheel shoes during the braking of the linear lines and the curve lines during the actual running can be obtained, the adjustment in the test process is convenient, and the applicability is wide.
Further improvements to the above described solution are possible as follows.
According to the wheel shoe abrasion test device of the utility model, in a preferred embodiment, the telescopic mechanism comprises an electric cylinder and a power push rod connected with the output end of the electric cylinder, and the power transmission mechanism is connected with the power push rod.
The telescopic mechanism in the combined form is simple in structure, easy to control and operate and convenient to apply thrust to the power transmission mechanism.
In a preferred embodiment, the power transmission mechanism comprises a force transmission lever and a fixed lever, wherein two ends of the force transmission lever are respectively and rotatably connected with one end of the brake frame and one end of the fixed lever, one end of the power push rod, which is far away from the electric cylinder, is rotatably connected with a preset position between two ends of the force transmission lever, and one end of the fixed lever, which is far away from the force transmission lever, is rotatably connected with the fixed hanging seat.
The loading of braking force is transmitted through a lever mechanism, and the levers can freely rotate through hinging, so that the requirement that the contact of the wheel bush with the smaller diameter of the wheel in the test is not limited is met.
Further, in a preferred embodiment, the fixing lever is symmetrically provided with adjustment holes at both ends.
Through setting up the adjustment hole, can regard as the spare hole to carry out the suitable adjustment when influencing the contact relation of wheel tile when wheel and brake shoe are worn out to a large extent, also can regard as the spare hole of adjustment stroke when changing the major diameter wheel and carrying out different experiments.
In particular, in a preferred embodiment, the brake carrier comprises a brake beam and a chute seat, in which a chute is provided, the two ends of the brake beam being arranged in the chute and being only movable in a vertical direction, the brake beam being in rotational connection with the force transmission lever, the brake shoes being arranged on the brake beam.
Specifically, two ends of the brake beam are lapped on the sliding groove and move along the sliding groove to limit the transverse and longitudinal movement of the brake beam, so that the test device is ensured to be stable and reliable in a specific test process.
Further, in a preferred embodiment, the brake beam is provided with a brake head on which the brake shoe is arranged by means of a brake shoe insert.
The brake head is arranged on the brake beam, and the brake beam slides in a preset position in the chute through the two ends, so that the geometrical relationship in actual braking is ensured.
Further, in a preferred embodiment, the force measuring device is arranged in the plane of the brake head.
The force measuring device such as a force sensor for measuring the wheel shoe pressure is arranged on the plane of the brake head, so that the accuracy and reliability of the measuring result can be ensured.
In particular, in a preferred embodiment, the displacement measuring device and the control device are each arranged on the brake beam.
The displacement measuring device and the control device are arranged on the brake beam, so that the accuracy of test results can be effectively ensured.
Further, in a preferred embodiment, the displacement measuring device and the control device are arranged on the brake beam by means of a bracket comprising a cross bar and a vertical bar connected perpendicularly to the cross bar and symmetrically arranged, the vertical bar being connected to the brake beam, the displacement measuring device and the control device being arranged on the cross bar.
The displacement measuring device and the control device are arranged through the support, so that the test process of the whole test device is stable and reliable, the support with the structural form is stable and reliable in structure, easy to arrange and process and small in occupied space.
Specifically, in a preferred embodiment, the brake beam comprises two groups of symmetrically arranged oblique support rods and transverse support rods with two ends respectively connected with the oblique support rods, and the intersection of the oblique support rods is connected with the brake shoe.
The brake beam with the structural form has the advantages of simple structure, easiness in processing and manufacturing, stable and reliable realization of stable connection with the force transmission lever and the brake head, and good guarantee of stable and reliable moving process of the brake beam.
Compared with the prior art, the utility model has the advantages that: the brake load during train operation can be effectively loaded actually under the action of the control device, so that the mutual abrasion action of the wheel tiles during actual brake can be simulated, abrasion data between the wheel tiles during brake of the straight line and the curve line during actual operation can be obtained, and the device is convenient to adjust in the test process and wide in applicability.
Drawings
The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
FIG. 1 schematically illustrates the overall structure of a wheel shoe wear test device in accordance with an embodiment of the present utility model;
fig. 2 schematically shows the overall structure of another direction of the wheel shoe abrasion test apparatus according to the embodiment of the present utility model.
In the drawings, like parts are designated with like reference numerals. The figures are not drawn to scale.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and the specific examples, which are not intended to limit the scope of the utility model.
Fig. 1 schematically shows the overall structure of a wheel shoe wear test device 10 according to an embodiment of the present utility model. Fig. 2 schematically illustrates the overall structure of another orientation of the wheel shoe wear test device 10 in accordance with an embodiment of the present utility model.
As shown in fig. 1 and 2, a wheel shoe abrasion test device 100 according to an embodiment of the present utility model includes a telescopic mechanism 10, a power transmission mechanism 20, a brake frame 30 and a control device 40, where the telescopic mechanism 10 is connected with the power transmission mechanism 20, one end of the power transmission mechanism 20 is rotationally connected with a fixed hanging seat 50, the other end is rotationally connected with the brake frame 30, one end of the brake frame 30 far away from the power transmission mechanism 20 is connected with a brake shoe 60, the telescopic mechanism 10 can drive the power transmission mechanism 20 to rotate so as to push the brake frame 30 to make the brake shoe 60 contact with a wheel 200, a force sensor is provided at a position on the brake frame 30 contacting with the brake shoe 60, a displacement sensor is further provided on the brake frame 30, and the force sensor, the displacement sensor and the telescopic mechanism 10 are all electrically connected with the control device 40.
According to the wheel shoe abrasion test device provided by the embodiment of the utility model, through the cooperation of the telescopic mechanism, the power transmission mechanism, the braking frame, the force measuring device, the displacement measuring device and the control device, the braking force loading can be transmitted to the brake shoe, the wheel shoe pressure can be fed back through the force measuring device, the brake shoe lateral displacement quantity can be fed back to the control device through the displacement measuring device, the wheel shoe pressure and the change of the linear and curve line brake shoe lateral displacement quantity when the train actually operates are collected, and the braking load when the train operates can be effectively loaded actually under the action of the control device, so that the mutual abrasion effect of the wheel shoes during actual braking can be simulated, the abrasion data between the wheel shoes during actual operation on the linear line and the curve line braking can be obtained, the test result is accurate and reliable, the test efficiency is improved, the adjustment in the test process is convenient, and the device is suitable for the braking system of all wheel shoe braking trucks, and the applicability is wide.
As shown in fig. 1, in the present embodiment, the telescopic mechanism 10 includes an electric cylinder 11 and a power pushrod 12 connected to an output end of the electric cylinder 11, and the power transmission mechanism 20 is connected to the power pushrod 12. The telescopic mechanism in the combined form is simple in structure, easy to control and operate and convenient to apply thrust to the power transmission mechanism.
As shown in fig. 1, specifically, in the present embodiment, the power transmission mechanism 20 includes a force transmission lever 21 and a fixed lever 22, wherein both ends of the force transmission lever 21 are respectively hinged to one end of the brake bracket 30 and one end of the fixed lever 22 by a round pin, one end of the power push rod 12, which is far from the electric cylinder 11, is hinged to a preset position between both ends of the force transmission lever 21 by a round pin, and one end of the fixed lever 22, which is far from the force transmission lever 21, is rotatably connected to the fixed hanger 50. The braking force is loaded and transmitted through the lever mechanism, the levers are hinged through the pin shafts and can freely rotate, and the requirement that the contact of the wheel bush with the diameter of the wheel being reduced is not limited in the test is met. Specifically, the fixed lever is connected to the fixed lever hanging seat through the round pin and used for fixing the upper end of the force transmission lever, the fixed lever rotates in a preset range, and the power push rod stretches out and draws back by a preset stroke amount, so that the wheel tile cannot normally contact after the wheel tile is worn to a certain amount in the wheel tile abrasion test process. Further, in the present embodiment, the fixing lever 22 is symmetrically provided with the adjusting holes 23 at both ends. Through setting up the adjustment hole, can regard as the spare hole to carry out the suitable adjustment when influencing the contact relation of wheel tile when wheel and brake shoe are worn out to a large extent, also can regard as the spare hole of adjustment stroke when changing the major diameter wheel and carrying out different experiments.
As shown in fig. 2, specifically, in the present embodiment, the brake frame 30 includes a brake beam 31 and a chute seat 32, a chute is provided in the chute seat 32, both ends 311 of the brake beam 31 are disposed in the chute and are movable only in the vertical direction, the brake beam 31 is hinged to the force transmission lever 21, and the brake shoe 60 is disposed on the brake beam 31. Specifically, two ends of the brake beam are lapped on the sliding groove and move along the sliding groove to limit the transverse and longitudinal movement of the brake beam, so that the test device is ensured to be stable and reliable in a specific test process.
Further, as shown in fig. 2, in the present embodiment, a brake head 70 is provided on the brake beam 31, and the brake shoe 60 is disposed on the brake head 70 by a brake shoe pin. The brake head is arranged on the brake beam, and the brake beam slides in a preset position in the chute through the two ends, so that the geometrical relationship in actual braking is ensured. Further, in this embodiment, the force sensor is disposed on the brake head plane 71. The force measuring device such as a force sensor for measuring the wheel shoe pressure is arranged on the plane of the brake head, so that the accuracy and reliability of the measuring result can be ensured.
As shown in fig. 2, in particular, in the present embodiment, the displacement sensor and the control device are each disposed on the brake beam 31. The displacement measuring device and the control device are arranged on the brake beam, so that the accuracy of test results can be effectively ensured. Further, in the present embodiment, the displacement sensor and the control device 40 are arranged on the brake beam 31 through the bracket 80, the bracket 80 includes the cross bar 81 and the vertical bars 82 which are connected to the cross bar 81 vertically and are symmetrically arranged, the vertical bars 82 are connected to the brake beam 31, and the displacement sensor and the control device 40 are arranged on the cross bar 81. The displacement measuring device and the control device are arranged through the support, so that the test process of the whole test device is stable and reliable, the support with the structural form is stable and reliable in structure, easy to arrange and process and small in occupied space.
As shown in fig. 2, in particular, in the present embodiment, the brake beam 31 includes two sets of diagonal support rods symmetrically arranged and transverse support rods having both ends respectively connected to the diagonal support rods, and the intersections of the diagonal support rods are connected to the brake head 70. The brake beam with the structural form has the advantages of simple structure, easiness in processing and manufacturing, stable and reliable realization of stable connection with the force transmission lever and the brake head, and good guarantee of stable and reliable moving process of the brake beam.
As shown in fig. 2, the specific working procedure of the test device according to the embodiment of the present utility model is as follows:
the braking force is applied by the electric cylinder 11, the power push rod 12 stretches and contracts, the force transmission lever 21 is pushed, the brake beam 31 is pushed, the wheels 200 are contacted with the brake shoes 60, and the braking force load is loaded between the wheel shoes. The electric cylinder 11 controls and feeds back the applied braking force load, the brake head plane 71 is provided with a force sensor which can feed back the wheel shoe pressure between the applied wheel shoes in real time, and the displacement sensor and the control device 40 can respectively measure and control the transverse displacement of the brake beam 31, so that the abrasion test condition between the wheel shoes during the braking of the linear line and the curve line during the running is realized.
According to the embodiment, the wheel shoe abrasion test device disclosed by the utility model can effectively load the braking load of the train in operation under the action of the control device, so that the mutual abrasion action of the wheel shoes in actual braking can be simulated, abrasion data between the wheel shoes in the braking of a straight line and a curve line in actual operation can be obtained, and the device is convenient to adjust in the test process and wide in applicability.
While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. The wheel shoe abrasion test device is characterized by comprising a telescopic mechanism, a power transmission mechanism, a braking frame and a control device; wherein,,
the telescopic mechanism is connected with the power transmission mechanism;
one end of the power transmission mechanism is rotationally connected with the fixed hanging seat, and the other end of the power transmission mechanism is rotationally connected with the braking frame; one end of the brake frame far away from the power transmission mechanism is connected with a brake shoe; the telescopic mechanism can drive the power transmission mechanism to rotate so as to push the brake frame to enable the brake shoes to be in contact with the wheels;
a force measuring device is arranged at the position, which is in contact with the brake shoe, on the brake frame, and a displacement measuring device is also arranged on the brake frame; the force measuring device, the displacement measuring device and the telescopic mechanism are all electrically connected with the control device.
2. The wheel shoe wear test device of claim 1, wherein the telescoping mechanism comprises an electric cylinder and a power pushrod connected to an output end of the electric cylinder, and the power transmission mechanism is connected to the power pushrod.
3. The wheel shoe wear test device of claim 2, wherein the power transmission mechanism comprises a force transmission lever and a fixed lever; wherein,,
the two ends of the force transmission lever are respectively and rotatably connected with one end of the braking frame and one end of the fixed lever, and one end, far away from the electric cylinder, of the power push rod is rotatably connected with a preset position between the two ends of the force transmission lever;
one end of the fixed lever, which is far away from the force transmission lever, is rotationally connected with the fixed hanging seat.
4. The wheel shoe abrasion test device according to claim 3, wherein the two ends of the fixing lever are symmetrically provided with adjusting holes.
5. The wheel shoe wear test device of claim 3 or 4, wherein the brake frame comprises a brake beam and a chute seat; a chute is arranged in the chute seat, and two ends of the brake beam are arranged in the chute and can only move along the vertical direction;
the brake beam is rotatably connected with the force transmission lever, and the brake shoe is arranged on the brake beam.
6. The wheel shoe wear test device of claim 5, wherein a brake head is provided on the brake beam, the brake shoe being disposed on the brake head by a brake shoe insert.
7. The wheel shoe wear test device of claim 6, wherein the force measuring device is disposed on the brake head plane.
8. The wheel shoe wear test device of claim 5, wherein the displacement measurement device and the control device are each disposed on the brake beam.
9. The wheel shoe wear test device according to claim 8, wherein the displacement measuring device and the control device are arranged on the brake beam by a bracket, the bracket comprising a cross bar and a vertical bar connected perpendicularly to the cross bar and symmetrically arranged, the vertical bar being connected to the brake beam, the displacement measuring device and the control device being arranged on the cross bar.
10. The wheel shoe abrasion test device according to claim 5, wherein the brake beam comprises two groups of symmetrically arranged oblique support rods and transverse support rods with two ends respectively connected with the oblique support rods, and the intersection of the oblique support rods is connected with the brake shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222025484.8U CN219038402U (en) | 2022-08-02 | 2022-08-02 | Wheel tile abrasion test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222025484.8U CN219038402U (en) | 2022-08-02 | 2022-08-02 | Wheel tile abrasion test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219038402U true CN219038402U (en) | 2023-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222025484.8U Active CN219038402U (en) | 2022-08-02 | 2022-08-02 | Wheel tile abrasion test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219038402U (en) |
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2022
- 2022-08-02 CN CN202222025484.8U patent/CN219038402U/en active Active
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