CN112229558A - System and method for testing axial force of hub bearing - Google Patents
System and method for testing axial force of hub bearing Download PDFInfo
- Publication number
- CN112229558A CN112229558A CN202011040480.6A CN202011040480A CN112229558A CN 112229558 A CN112229558 A CN 112229558A CN 202011040480 A CN202011040480 A CN 202011040480A CN 112229558 A CN112229558 A CN 112229558A
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- China
- Prior art keywords
- test
- hub bearing
- axial force
- bridge circuit
- testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
- G01L5/161—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance
- G01L5/1627—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance of strain gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0078—Shock-testing of vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a system and a method for testing axial force of a hub bearing, which mainly comprise strain sensors and the like, wherein the strain sensors are adhered to an outer ring of a hub bearing sample, two strain sensors and two resistors form a bridge circuit unit according to a half-bridge circuit connection, the bridge circuit unit is connected with a data acquisition unit, the data acquisition unit is connected with a computer to display and record signals during testing, and a power supply supplies power to the data acquisition unit and the computer at the same time. The invention can test the axial force of the hub bearing in a static state, can test the axial force of the hub bearing in a loading working state, and can also be used for testing the impact force on a bench and the lateral impact force of a whole vehicle road test; the test method can be applied to tire extrusion road shoulder tests to test the rotating speed of the steering wheel with indentation of the bearing raceway of the hub; the test device can be applied to a tire side impact test to test the vehicle speed of a vehicle impacting a road shoulder with an indentation appearing on a bearing raceway of a hub.
Description
Technical Field
The invention relates to the field of hub bearings, in particular to a system and a method for testing axial force of a hub bearing.
Background
When a vehicle tire extrudes a road shoulder, bumps a road tooth or is subjected to other side impact conditions, the wheel hub bearing is stressed too much, and indentation of the distance between the steel balls on the roller path is often caused, so that the virtual position and the looseness of the wheel hub bearing are caused, and further the failure of the bearing is caused. In the prior art, a good method for measuring the axial force of the hub bearing does not exist, so that the condition of the axial force of the hub bearing under each working condition is difficult to evaluate, and the design and installation of the bearing cannot be effectively improved.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a system and a method for testing the axial force of a hub bearing.
The purpose of the invention is achieved by the following technical scheme: the axial force testing system for the hub bearing mainly comprises a strain sensor, a bridge circuit unit, a data acquisition unit, a computer and a power supply, wherein the strain sensor is adhered to an outer ring of a hub bearing sample, the two strain sensors and two resistors form the bridge circuit unit according to a half-bridge circuit connection, the bridge circuit unit is connected with the data acquisition unit, the data acquisition unit is connected with the computer to display and record signals during testing, and the power supply supplies power to the data acquisition unit and the computer at the same time.
The method for testing the axial force of the hub bearing mainly comprises the following steps:
1) installing a strain sensor: the strain sensors are adhered to the outer ring of the hub bearing sample, and the two strain sensors and the two resistors form a bridge circuit unit according to the half-bridge circuit connection;
2) force-voltage calibration test: the method comprises the following steps that a hub bearing sample is installed on a test bed, a force-voltage calibration test is carried out, a load is applied to the tire radius position of the hub bearing sample, the lateral stress of a tire is simulated, and a force-voltage calibration relation is obtained;
3) and (3) testing the axial force: the hub bearing test sample is arranged on a test vehicle and is respectively subjected to road shoulder extrusion test and side impact test.
And the road shoulder extrusion test is that when a tire on one side of the vehicle clings to a step and a steering wheel is slammed right and left, the voltage of the strain sensor is measured, and the axial force of the hub bearing extrusion is obtained through conversion according to the calibration relation.
The side impact test is that the vehicle is subjected to full steering braking at a certain speed to impact a road shoulder, the voltage of the strain sensor is measured, and the impact axial force of the hub bearing is obtained through conversion according to a calibration relation.
The invention has the beneficial effects that: the invention can test the axial force of the hub bearing in a static state, can test the axial force of the hub bearing in a loading working state, and can also be used for testing the impact force on a bench and the lateral impact force of a whole vehicle road test; the test method can be applied to tire extrusion road shoulder tests to test the rotating speed of the steering wheel with indentation of the bearing raceway of the hub; the test device can be applied to a tire side impact test to test the vehicle speed of a vehicle impacting a road shoulder with an indentation appearing on a bearing raceway of a hub.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Fig. 2 is a schematic view of the installation position of the strain sensor of the present invention.
FIG. 3 is a schematic diagram of a bridge unit according to the present invention.
Fig. 4 is a schematic view of the load loading of the present invention.
FIG. 5 is a schematic diagram of the force-voltage calibration of the present invention.
Description of reference numerals: the device comprises a strain sensor 1, a bridge circuit unit 2, a data acquisition unit 3, a computer 4, a power supply 5 and a hub bearing sample 6.
Detailed Description
The invention will be described in detail below with reference to the following drawings:
as shown in the attached drawing, the system for testing the axial force of the hub bearing mainly comprises a strain sensor 1, a bridge circuit unit 2, a data acquisition unit 3, a computer 4 and a power supply 5, wherein the strain sensor 1 is adhered to an outer ring of a hub bearing sample 6, the two strain sensors 1 and two resistors form the bridge circuit unit 2 through half-bridge circuit connection, the bridge circuit unit 2 is connected to the data acquisition unit 3, the data acquisition unit 3 is connected with the computer 4 to display and record signals during testing, and the power supply 5 supplies power to the data acquisition unit 3 and the computer 4 simultaneously.
The method for testing the axial force of the hub bearing mainly comprises the following steps:
1) the strain sensor 1 is installed: the strain sensors 1(R1 and R2) and two resistors R are adhered to an outer ring of the hub bearing sample 6, and the two strain sensors 1 form a bridge circuit unit 2 according to half-bridge circuit connection;
2) force-voltage calibration test: a hub bearing sample 6 is arranged on a test bed, a force-voltage calibration test is carried out, a load is applied to the tire radius position of the hub bearing sample 6, as shown in figure 4, the lateral stress of the tire is simulated, and a force-voltage calibration relation is obtained;
3) and (3) testing the axial force: the hub bearing sample 6 is arranged on a test vehicle and is respectively subjected to road shoulder extrusion test and side impact test. And in the road shoulder extrusion test, when a tire on one side of the vehicle is tightly attached to a step and a steering wheel is slammed right and left, the voltage of the strain sensor 1 is measured, and the axial force of the hub bearing extrusion is obtained through conversion according to the calibration relation. The side impact test is that the vehicle is fully steered and braked to impact a road shoulder at a certain speed, the voltage of the strain sensor 1 is measured, and the impact axial force of the hub bearing is obtained through conversion according to a calibration relation.
It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.
Claims (4)
1. The utility model provides a wheel hub bearing axial force test system which characterized in that: mainly including strain sensor (1), bridge circuit unit (2), data acquisition unit (3), computer (4), power supply (5), strain sensor (1) is pasted on the outer lane of wheel hub bearing sample (6), bridge circuit unit (2) are constituteed according to the half-bridge circuit wiring to two strain sensor (1) and two resistances, bridge circuit unit (2) access data acquisition unit (3), computer (4) are connected in order to show when the test and record signal in data acquisition unit (3), power supply (5) are given data acquisition unit (3) and computer (4) power supply simultaneously.
2. A method for testing axial force of a hub bearing mainly comprises the following steps:
1) the strain sensor (1) is installed: the strain sensors (1) are adhered to the outer ring of the hub bearing sample (6), and the two strain sensors (1) and the two resistors form a bridge circuit unit (2) according to half-bridge circuit connection;
2) force-voltage calibration test: the hub bearing test sample (6) is arranged on a test bed, a force-voltage calibration test is carried out, a load is applied to the tire radius position of the hub bearing test sample (6), the lateral stress of the tire is simulated, and a force-voltage calibration relation is obtained;
3) and (3) testing the axial force: the hub bearing test sample (6) is arranged on a test vehicle and is used for road shoulder extrusion test and side impact test respectively.
3. The method for testing the axial force of the hub bearing according to claim 2, wherein: and in the road shoulder extrusion test, when a tire on one side of a vehicle is tightly attached to a step and a steering wheel is slammed right and left, the voltage of the strain sensor (1) is measured, and the axial extrusion force of the hub bearing is obtained through conversion according to a calibration relation.
4. The method for testing the axial force of the hub bearing according to claim 2, wherein: the side impact test is that the vehicle is subjected to full steering braking at a certain speed to impact a road shoulder, the voltage of the strain sensor (1) is measured, and the impact axial force of the hub bearing is obtained through conversion according to a calibration relation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011040480.6A CN112229558A (en) | 2020-09-28 | 2020-09-28 | System and method for testing axial force of hub bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011040480.6A CN112229558A (en) | 2020-09-28 | 2020-09-28 | System and method for testing axial force of hub bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112229558A true CN112229558A (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011040480.6A Pending CN112229558A (en) | 2020-09-28 | 2020-09-28 | System and method for testing axial force of hub bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112229558A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747884A (en) * | 2021-01-29 | 2021-05-04 | 重庆长安汽车股份有限公司 | Method for evaluating shock resistance of hub bearing |
| CN113155454A (en) * | 2021-02-03 | 2021-07-23 | 浙江万向精工有限公司 | Strain calibration method of dynamic test bed of hub bearing |
-
2020
- 2020-09-28 CN CN202011040480.6A patent/CN112229558A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747884A (en) * | 2021-01-29 | 2021-05-04 | 重庆长安汽车股份有限公司 | Method for evaluating shock resistance of hub bearing |
| CN113155454A (en) * | 2021-02-03 | 2021-07-23 | 浙江万向精工有限公司 | Strain calibration method of dynamic test bed of hub bearing |
| CN113155454B (en) * | 2021-02-03 | 2022-04-22 | 浙江万向精工有限公司 | Strain calibration method of dynamic test bed of hub bearing |
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Address after: 311215 Wanxiang Road, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant after: Wanxiang Qianchao Co.,Ltd. Applicant after: WANXIANG GROUP Co.,Ltd. Address before: No.1 Wanxiang Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Applicant before: WANXIANG QIANCHAO Co.,Ltd. Applicant before: WANXIANG GROUP Co.,Ltd. |
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