Brake torque testing tool for brake
By designing a simple testing fixture consisting of a positioning plate, bearings, and a torque shaft, the problem of high cost of existing brake test benches is solved, and low-cost and accurate brake torque testing is achieved.
Patent Information
- Application Number
- CN202520640430.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Existing brake test benches are complex in structure and expensive, resulting in high costs for companies to test the braking torque of brakes.
A simple testing fixture consisting of a positioning plate, bearings, and a torque shaft was designed. The braking torque is tested by using a torque wrench to move the torque shaft through a centering cylinder that fits into the inner hole of the brake mounting flange. The fixture has a simple structure and reduces costs.
This simplifies the braking torque test operation, reduces testing costs, and improves testing accuracy and ease of use.
Smart Images
Figure CN223856617U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to brake torque test technical field, specifically, relate to a brake brake torque test frock. BACKGROUND
[0002] The brake is a kind of mechanical device that can make moving parts decelerate, stop or keep the state of stop, is widely used in various mechanical equipment and vehicles, to ensure its safe, reliable operation.Brake torque is the key indicator to measure brake, so brake usually carries out brake torque test, to reach the purpose of judging brake effect, optimizing brake performance etc.
[0003] At present, brake torque of brake is tested by brake test bench, and the brake test bench is a kind of equipment specially used for testing brake performance, it can simulate the brake process under various actual working conditions, and is usually composed of motor, loading device, measuring system and control system etc.However, the equipment has complex structure and high cost, and if simple test frock can be provided, enterprise cost can be greatly saved. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a brake brake torque test frock to solve the problem of high cost of existing brake test bench, to achieve the purpose of saving enterprise cost.
[0005] The utility model is realized by the following technical schemes:
[0006] A brake brake torque test frock is applied to brake with mounting flange, the mounting flange is equipped with inner hole, the test frock includes positioning disc, bearing and torque shaft, one end of positioning disc is equipped with centering cylinder for cooperating with the inner hole, positioning disc is sleeved on torque shaft and connected through the bearing, one end of torque shaft is equipped with keyway or spline for connecting rotor of brake, the other end of torque shaft is equipped with connecting portion for connecting torque wrench.
[0007] Optionally, the bearing is radial bearing.
[0008] Optionally, one end of the positioning disc is equipped with positioning ring groove, the torque shaft is equipped with positioning step, and the bearing is limited between the bottom of the positioning ring groove and the positioning step.
[0009] Optionally, the inner diameter of the positioning disc is greater than the outer diameter of the inner ring of the bearing and less than the outer diameter of the outer ring of the bearing;The diameter of the positioning step is greater than the outer diameter of the inner ring of the bearing and less than the inner diameter of the outer ring of the bearing.
[0010] Optionally, the depth of the positioning ring groove is equal to the width of the bearing.
[0011] Optionally, the cross section of the connecting portion perpendicular to the axial direction is a regular hexagon.
[0012] Optionally, the centering cylinder is clearance fit with the inner hole of the mounting flange.
[0013] Optionally, the inner diameter of the centering cylinder is larger than the outer diameter of the brake rotor.
[0014] The technical scheme of the utility model has at least the following advantages and beneficial effects: in the utility model, the test tool is composed of a positioning disc, a bearing and a torque shaft, and has simple structure and greatly reduced cost compared with the existing special brake test bench; during use, the centering is realized by cooperation of the centering cylinder and the inner hole of the mounting flange of the brake, so that the brake is in the braking state; then the torque wrench is connected to the connecting portion of the torque shaft, the torque shaft is turned by the torque wrench, the braking torque of the brake can be tested, and the operation is simple. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 A structural schematic view of a brake braking torque test tool is provided in the utility model;
[0016] Figure 2 A structural schematic view of a positioning disc;
[0017] Figure 3 A structural schematic view of a torque shaft;
[0018] Figure 4 A use state view of a brake braking torque test tool is provided in the utility model;
[0019] Reference signs: 1-positioning disc, 101-positioning cylinder, 102-positioning ring groove, 2-bearing, 3-torque shaft, 301-connecting portion, 302-positioning step, 4-brake, 401-mounting flange, 402-rotor. DETAILED DESCRIPTION
[0020] Reference Figures 1-3 A brake braking torque test tool is applied to a brake with a mounting flange, the mounting flange is provided with an inner hole, the test tool comprises a positioning disc, a bearing and a torque shaft, and has simple overall structure and greatly reduced cost compared with the existing special brake test bench.
[0021] The one end of the positioning disc is provided with a centering cylinder for cooperating with the inner hole, in use, the centering cylinder can realize the concentricity of the testing tool and the brake after cooperating with the inner hole of the mounting flange, so as to improve the testing accuracy. The positioning disc is sleeved on the torque shaft and connected through the bearing, when the testing tool is mounted on the brake through the positioning cylinder, the torque shaft can rotate relative to the positioning disc. As an option, the centering cylinder cooperates with the inner hole of the mounting flange in the embodiment, so as to facilitate the disassembly and assembly, further, the inner diameter of the centering cylinder is larger than the outer diameter of the rotor of the brake, so as to avoid the friction between the rotor and the centering cylinder and affect the testing result.
[0022] The other end of the torque shaft is provided with a connecting part for connecting the torque wrench (also called torque adjustable wrench, not shown in the figure), as an option, the cross section perpendicular to the axial direction of the connecting part is a regular hexagon, so as to cooperate with the torque wrench. The one end of the torque shaft is provided with a key groove or spline, for connecting the rotor of the brake, it is easy to understand that the torque shaft is provided with the key groove or spline, which is determined according to the structure of the inner hole of the rotor, if the rotor is connected with the power output shaft through the spline, the torque shaft is provided with the spline, if the inner hole of the rotor is connected with the power output shaft through the connecting key, the torque shaft is provided with the key groove for mounting the connecting key.
[0023] Reference Figure 4 In use, the centering is realized through the cooperation of the centering cylinder and the inner hole of the mounting flange of the brake, so as to make the brake in the braking state, then the connecting part of the torque shaft is connected with the torque wrench, the torque wrench is twisted to twist the torque shaft, so as to test the braking torque of the brake, which is simple to operate.
[0024] As an option, the bearing in the embodiment is a radial bearing. Of course, a plain bearing can also be used in other embodiments. On the basis of the above, the one end of the positioning disc is provided with a positioning ring groove, the depth of the positioning ring groove is equal to the width of the bearing, the torque shaft is provided with a positioning step, the bearing is limited between the bottom of the positioning ring groove and the positioning step, that is, the axial position of the bearing is limited through the positioning ring groove and the positioning step. Further, the inner diameter of the positioning disc is larger than the outer diameter of the inner ring of the bearing and smaller than the outer diameter of the outer ring of the bearing (that is, avoiding the contact between the positioning disc and the inner ring of the bearing); the diameter of the positioning step is larger than the outer diameter of the inner ring of the bearing and smaller than the inner diameter of the outer ring of the bearing (that is, avoiding the contact between the positioning step and the outer ring of the bearing), so as to ensure the smooth rotation of the torque shaft.
[0025] The above is only the preferred embodiment of the present application and is not used to limit the present application, for those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A brake torque testing fixture, applied to a brake with a mounting flange, the mounting flange having an inner hole, characterized in that, The test tool comprises a positioning disc, a bearing and a torque shaft, one end of the positioning disc is provided with a centering cylinder for cooperating with the inner hole, the positioning disc is sleeved on the torque shaft and connected through the bearing, one end of the torque shaft is provided with a key groove or spline for connecting the rotor of the brake, the other end of the torque shaft is provided with a connecting part for connecting the torque wrench.
2. The brake torque test tool of claim 1, wherein, The bearing is a radial bearing.
3. The brake torque test tool of claim 2, wherein, One end of the positioning disc is provided with a positioning ring groove, the torque shaft is provided with a positioning step, and the bearing is limited between the bottom of the positioning ring groove and the positioning step.
4. The brake torque test tool of claim 3, wherein, The inner diameter of the positioning disc is greater than the outer diameter of the inner ring of the bearing and less than the outer diameter of the outer ring of the bearing; the diameter of the positioning step is greater than the outer diameter of the inner ring of the bearing and less than the inner diameter of the outer ring of the bearing.
5. The brake torque test tool of claim 3, wherein, The depth of the positioning ring groove is equal to the width of the bearing.
6. The brake torque test tool of claim 1, wherein, The cross section of the connecting part perpendicular to the axis direction is a regular hexagon.
7. The brake torque test tool of claim 1, wherein, The centering cylinder is in clearance fit with the inner hole of the mounting flange.
8. The brake torque test tool of claim 1, wherein, The inner diameter of the centering cylinder is greater than the outer diameter of the rotor of the brake.