CN113432873A - Ball head bearing life test device and method thereof - Google Patents
Ball head bearing life test device and method thereof Download PDFInfo
- Publication number
- CN113432873A CN113432873A CN202110702635.6A CN202110702635A CN113432873A CN 113432873 A CN113432873 A CN 113432873A CN 202110702635 A CN202110702635 A CN 202110702635A CN 113432873 A CN113432873 A CN 113432873A
- Authority
- CN
- China
- Prior art keywords
- ball bearing
- connecting rod
- torsion
- torsion bar
- driving mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the technical field of ball bearing tests, and particularly relates to a ball bearing service life test device and a method thereof, wherein the ball bearing service life test device comprises a torsion bar shaft, a torsion arm, a connecting rod and a rack, the torsion bar shaft is arranged on the rack and connected with the torsion arm, the end part of the torsion arm is connected with an outer ring or an inner ring of a tested ball bearing, the connecting rod is connected with an inner ring or an outer ring of the tested ball bearing, the torsion bearing further comprises a reciprocating driving mechanism, the reciprocating driving mechanism drives the connecting rod to reciprocate and drives the tested ball bearing and the torsion arm to rotate along the axis of the torsion bar shaft, the invention forms a service life test mechanism for testing the tested ball bearing through the torsion bar shaft, the torsion arm, the connecting rod and the rack, wherein the reciprocating driving mechanism drives the connecting rod to reciprocate, and can realize the radial and torsional two-direction working condition simulation of the tested ball bearing, compared with the existing ball bearing test device, the structure is greatly simplified, and the test effect that can reach is unanimous.
Description
Technical Field
The invention belongs to the technical field of ball bearing tests, and particularly relates to a ball bearing service life test device and method.
Background
The ball bearing is generally of two types, namely a metal bearing and a rubber node, is widely applied to the field of mechanical engineering, particularly to various suspension components of a railway vehicle, and mainly has the main functions of being used for connecting all the components, providing the freedom degrees of deflection and torsion and bearing radial loads, so that the ball bearing mainly relates to the composite working conditions of radial direction, deflection and torsion. This kind of product need adopt bench test to verify its reliability usually, and the bench test can easily realize one-way, two-way test, and the three-way test is difficult to realize owing to can have unstability and space interference, needs complicated frock to come the auxiliary test usually, generally mainly relies on articulated structure to assist some guide rail mechanism spacing to realize, relates to spare part tens of, and the structure is very complicated, and experimental precision is low moreover.
Disclosure of Invention
The invention aims to provide a ball head bearing service life testing device and method with simple structure and good testing effect.
The invention provides a ball head bearing service life testing device which comprises a torsion bar shaft, a torsion arm, a connecting rod and a rack, wherein the torsion bar shaft is arranged on the rack and connected with the torsion arm, the end part of the torsion arm is connected with the outer ring or the inner ring of a tested ball head bearing, the connecting rod is connected with the inner ring or the outer ring of the tested ball head bearing, and the ball head bearing service life testing device also comprises a reciprocating driving mechanism, the reciprocating driving mechanism drives the connecting rod to reciprocate, and the tested ball head bearing and the torsion arm are driven to rotate along the axis of the torsion bar shaft.
Still further, the torsion bar shaft, torsion arms, and links are perpendicular to each other.
The ball head bearing service life testing device further comprises a deflection driving mechanism, the deflection driving mechanism drives the torsion bar shaft to reciprocate along the axis of the torsion bar shaft, and the connecting rod is connected with the reciprocating driving mechanism through the ball head bearing.
Furthermore, the deflection driving mechanism is used for driving the connecting rod to swing around the ball bearing to be measured, the reciprocating driving mechanism is arranged at the output end of the deflection driving mechanism, and the connecting rod is connected with the reciprocating driving mechanism through the ball bearing.
Further, the torsion bar shaft is detachably connected to the torsion arm.
The invention also provides a ball bearing service life test method, which comprises a ball bearing service life test device and comprises the following steps:
s1, installing the outer ring or the inner ring of the measured ball bearing at the end part of the torsion arm, and connecting the connecting rod with the inner ring or the outer ring of the measured ball bearing;
and S2, the reciprocating driving mechanism drives the connecting rod to reciprocate, and drives the ball head bearing to be measured and the torsion arm to rotate along the axis of the torsion bar shaft until the preset times are reached or the ball head bearing to be measured is damaged.
Further, in step S2, the yaw driving mechanism drives the driving torsion bar shaft to reciprocate along the axis thereof, or the driving link to swing about the measured ball bearing.
The invention has the advantages that the service life testing mechanism for testing the ball head bearing to be tested is formed by the torsion bar shaft, the torsion arm, the connecting rod and the rack, and integrally forms a torsion bar spring structure, wherein the reciprocating driving mechanism drives the connecting rod to move in a reciprocating manner, so that the radial and torsional working condition simulation of the ball head bearing to be tested can be realized, and the quality and the service life of the ball head bearing to be tested can be well detected to reach the standard or not by setting the test times.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a right side view of the present invention;
FIG. 3 is a schematic view of the movement condition of the measured ball bearing according to the present invention.
In the figure, 1-torsion bar axis; 2-torsion arm; 3-measured ball head bearing; 4-a connecting rod; 5-a frame; 6-ball head bearing.
Detailed Description
As shown in fig. 1-3, the present invention includes a torsion bar shaft 1, a torsion arm 2, a connecting rod 4 and a frame 5, wherein the torsion bar shaft 1 is disposed on the frame 5, the torsion bar shaft 1 is connected with the torsion arm 2, an end of the torsion arm 2 is connected with an outer ring or an inner ring of a measured ball bearing 3, the connecting rod 4 is connected with the inner ring or the outer ring of the measured ball bearing 3, and the present invention further includes a reciprocating drive mechanism, the reciprocating drive mechanism drives the connecting rod 4 to reciprocate, and drives the measured ball bearing 3 and the torsion arm 2 to rotate along an axis of the torsion bar shaft 1.
The invention forms a life test mechanism for testing a tested ball head bearing 3 through a torsion bar shaft 1, a torsion arm 2, a connecting rod 4 and a frame 5, the life test mechanism integrally forms a torsion bar spring structure, wherein the reciprocating drive mechanism drives the connecting rod 4 to move in a reciprocating way, namely, the force in the direction F in figure 1 can realize the radial and torsional working condition simulation of the tested ball head bearing 3 shown in figure 3, when the force F drives the connecting rod 4 to move downwards, the inner ring or the outer ring of the tested ball head bearing 3 pushes the outer ring or the inner ring to move downwards and rotate, at the moment, the torsion bar shaft 1 is driven to generate torsional deformation, the torsion bar shaft 1 provides a certain reaction force for the tested ball head bearing 3 and the connecting rod 4, when the tested ball head bearing 3 moves downwards, the relative rotation and the reaction force of the inner ring and the outer ring realize the radial and torsional real working condition simulation of the tested ball head bearing 3, when the tested ball head bearing 3 is a metal ball head bearing, because the material and two moving parts are matched by the round sphere, the torsion and deflection directions are substantially the same, namely, various working condition simulation of the ball head bearing 3 to be tested can be realized through one unidirectional force F, and whether the quality and the service life of the ball head bearing 3 to be tested reach the standard or not can be well detected through setting the test times.
The torsion bar shaft 1, the torsion arm 2 and the connecting rod 4 are mutually perpendicular, so that the size and the strength of each component can be calculated conveniently according to requirements, and meanwhile, the structure compactness and the stability are improved.
When the measured ball head bearing 3 is a rubber ball head bearing, the stress strength and the times in the deflection and torsion directions of the measured ball head bearing 3 are different, so in order to provide the working condition simulation in the deflection direction and realize the three-way working condition simulation of the measured ball head bearing 3, the invention further comprises a deflection driving mechanism, the deflection driving mechanism drives the torsion bar shaft 1 to reciprocate along the axis of the torsion bar shaft, the connecting rod 4 is connected with the reciprocating driving mechanism through the ball head bearing 6, as shown in fig. 1, when the torsion bar shaft 1 is driven to reciprocate along the axis of the torsion bar shaft, the inner ring and the outer ring of the measured ball head bearing 3 rotate along the deflection direction when rotating along the torsion direction of fig. 3, so as to realize the three-way synchronous simulation, wherein when the torsion bar shaft 1 moves, the deflection driving mechanism can simultaneously drive the rack 5 and the torsion bar 1 to move simultaneously, or the torsion bar shaft 1 and the rack 5 can be in sliding fit (only can slide along the axis and can not rotate relatively), the reason why the connecting rod 4 is connected to the reciprocating drive mechanism through the ball bearing 6 while the torsion bar shaft 1 is driven to move is that the connecting rod 4 can be operated to swing around the side connected to the reciprocating drive mechanism while moving along the axis of the connecting rod 4, thereby realizing three-way synchronous simulation.
In another embodiment, the deflection driving mechanism is used for driving the connecting rod 4 to swing around the measured ball head bearing 3, the reciprocating driving mechanism is arranged on the output end of the deflection driving mechanism, and the connecting rod 4 is connected with the reciprocating driving mechanism through the ball head bearing 6, in this embodiment, the connecting rod 4 reciprocates along the axis and swings around the measured ball head bearing 3 at the same time, and three-way synchronous simulation can also be realized.
The torsion bar shaft 1 is detachably connected with the torsion arms 2, so that the torsion arms 2 with different sizes can be conveniently arranged according to the types of the ball bearings 3 to be measured.
A ball bearing life test method comprises a ball bearing life test device and comprises the following steps:
s1, installing the outer ring or the inner ring of the measured ball bearing 3 at the end part of the torsion arm 2, and connecting rod 4 is connected with the inner ring or the outer ring of the measured ball bearing 3;
and S2, the reciprocating driving mechanism drives the connecting rod 4 to reciprocate, and drives the measured ball head bearing 3 and the torsion arm 2 to rotate along the axis of the torsion rod shaft 1 until the preset times are reached or the measured ball head bearing 3 is damaged.
In step S2, the yaw driving mechanism drives the driving torsion bar shaft 1 to reciprocate along the axis thereof, or the driving link 4 to swing about the measured ball bearing 3.
The invention provides a three-way test method for a ball bearing, which can break through the technical bottleneck of the three-way test of the existing ball bearing, greatly reduce the complexity of the structure, reduce the cost, synchronously simulate the three-way working condition and stably and continuously perform the three-way fatigue test of the ball bearing products. The invention mainly adopts a torsion bar spring with set rigidity (the main body of the torsion bar spring is a straight bar, one end of the torsion bar spring is fixed, the other end bears load, and the torsion deformation of the bar is utilized to play a role of a spring) as a test auxiliary device, in the invention, a torsion bar shaft 1 is the straight bar of the torsion bar spring, one end of the torsion bar shaft 1 is fixed through a rack 5, the other end bears load through a torsion arm 2, namely, a tested ball head bearing 3 and a connecting rod 4 bear load force F, the torsion bar shaft 1 provides resistance and is subjected to torsion deformation when the connecting rod 4 applies force, and when the connecting rod 4 is reset, the torsion bar shaft 1 resets to play a role of a spring to push the tested ball head bearing 3 and the connecting rod 4 to reset.
During the test, will be surveyed ball head bearing 3 and install on torsion arm 2 and connecting rod 4, after vertical connecting rod 4 exerts load excitation F, can realize being surveyed ball head bearing 3 radial load and torsion angle operating mode simulation in step, plus a horizontal displacement excitation (the actuating mechanism that deflects promptly), can realize being surveyed ball head bearing 3 deflection angle operating mode, whole device can realize ball head bearing's three-dimensional fatigue test promptly.
The tested ball bearing 3 is arranged between the connecting rod 4 and the torsion arm 2, and the requirements of the three-way working condition can be assumed as radial load, torsion angle alpha and deflection angle theta. Wherein, the interface of the torsion arm 2 is designed according to the ball bearing sample to be tested; the connection of the torsion arm 2 and the torsion rod shaft 1 can adopt common interference connection, and can also adopt connection forms of splines, conical surfaces, polyhedrons and the like according to actual conditions, the interface of the connecting rod 4 is designed according to a ball bearing sample to be tested, in order to ensure that the outer ring of the ball bearing is fixed, the tested ball bearing 3 and the connecting rod 4 are preferably in interference connection or glue bonding, and the connection is required to ensure that relative displacement does not occur under the test working condition.
Claims (7)
1. The utility model provides a ball head bearing life test device, characterized by, includes torsion bar axle (1), torsion arm (2), connecting rod (4) and frame (5), torsion bar axle (1) sets up on frame (5), and torsion bar axle (1) is connected with torsion arm (2), and torsion arm (2) tip is connected with the outer lane or the inner circle of being surveyed ball head bearing (3), and connecting rod (4) are connected with the inner circle or the outer lane of being surveyed ball head bearing (3), still includes reciprocating drive mechanism, and reciprocating drive mechanism drive connecting rod (4) reciprocating motion drives to be surveyed ball head bearing (3) and torsion arm (2) and rotate along torsion bar axle (1) axis.
2. The ball bearing life test apparatus according to claim 1, wherein the torsion bar shaft (1), the torsion arm (2), and the connecting rod (4) are perpendicular to each other.
3. The ball bearing life test device according to claim 1 or 2, further comprising a yaw driving mechanism, wherein the yaw driving mechanism drives the torsion bar shaft (1) to reciprocate along the axis thereof, and the connecting rod (4) is connected with the reciprocation driving mechanism through the ball bearing (6).
4. The ball bearing life test device according to claim 1 or 2, further comprising a deflection driving mechanism for driving the connecting rod (4) to swing around the ball bearing (3) to be tested, wherein the reciprocating driving mechanism is arranged at the output end of the deflection driving mechanism, and the connecting rod (4) is connected with the reciprocating driving mechanism through the ball bearing (6).
5. The ball bearing life test apparatus according to claim 1, wherein the torsion bar shaft (1) is detachably connected to the torsion arm (2).
6. A ball bearing life test method, comprising the ball bearing life test apparatus according to any one of claims 1 to 5, comprising the steps of:
s1, installing the outer ring or the inner ring of the measured ball bearing (3) at the end part of the torsion arm (2), and connecting rods (4) are connected with the inner ring or the outer ring of the measured ball bearing (3);
s2, the reciprocating driving mechanism drives the connecting rod (4) to move in a reciprocating mode, the detected ball head bearing (3) and the torsion arm (2) are driven to rotate along the axis of the torsion bar shaft (1) until the preset times are reached or the detected ball head bearing (3) is damaged.
7. The method for testing the life of a ball bearing according to claim 6, wherein in step S2, the yaw driving mechanism drives the driving torsion bar shaft (1) to reciprocate along the axis thereof or the driving connecting rod (4) to swing around the ball bearing (3) to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110702635.6A CN113432873B (en) | 2021-06-23 | 2021-06-23 | Ball head bearing life test device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110702635.6A CN113432873B (en) | 2021-06-23 | 2021-06-23 | Ball head bearing life test device and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113432873A true CN113432873A (en) | 2021-09-24 |
| CN113432873B CN113432873B (en) | 2022-03-18 |
Family
ID=77753885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110702635.6A Active CN113432873B (en) | 2021-06-23 | 2021-06-23 | Ball head bearing life test device and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113432873B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2110055C1 (en) * | 1996-10-08 | 1998-04-27 | Орловский государственный технический университет | Installation for examination of antifriction bearings |
| CN200965490Y (en) * | 2006-06-16 | 2007-10-24 | 株洲时代新材料科技股份有限公司 | Mechanical rubber ball hinge fatigue tester |
| CN101482447A (en) * | 2008-12-31 | 2009-07-15 | 奇瑞汽车股份有限公司 | Rubber bushing torsion test apparatus |
| CN201837533U (en) * | 2010-03-22 | 2011-05-18 | 株洲时代新材料科技股份有限公司 | Loading fatigue tester for radial, axial, shearing and torsion directions of rubber elastic assembly |
| CN202149843U (en) * | 2011-07-27 | 2012-02-22 | 株洲时代新材料科技股份有限公司 | Rubber spherical hinge loading fatigue test device |
| CN202204665U (en) * | 2011-07-29 | 2012-04-25 | 中国第一汽车股份有限公司 | Durability test device for suspension spherical hinge assembly |
| CN110553843A (en) * | 2019-10-17 | 2019-12-10 | 上海精智实业股份有限公司 | triaxial elastic bearing bush fatigue testing machine |
-
2021
- 2021-06-23 CN CN202110702635.6A patent/CN113432873B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2110055C1 (en) * | 1996-10-08 | 1998-04-27 | Орловский государственный технический университет | Installation for examination of antifriction bearings |
| CN200965490Y (en) * | 2006-06-16 | 2007-10-24 | 株洲时代新材料科技股份有限公司 | Mechanical rubber ball hinge fatigue tester |
| CN101482447A (en) * | 2008-12-31 | 2009-07-15 | 奇瑞汽车股份有限公司 | Rubber bushing torsion test apparatus |
| CN201837533U (en) * | 2010-03-22 | 2011-05-18 | 株洲时代新材料科技股份有限公司 | Loading fatigue tester for radial, axial, shearing and torsion directions of rubber elastic assembly |
| CN202149843U (en) * | 2011-07-27 | 2012-02-22 | 株洲时代新材料科技股份有限公司 | Rubber spherical hinge loading fatigue test device |
| CN202204665U (en) * | 2011-07-29 | 2012-04-25 | 中国第一汽车股份有限公司 | Durability test device for suspension spherical hinge assembly |
| CN110553843A (en) * | 2019-10-17 | 2019-12-10 | 上海精智实业股份有限公司 | triaxial elastic bearing bush fatigue testing machine |
Non-Patent Citations (1)
| Title |
|---|
| 覃枫: "牵引杆球铰三向疲劳试验装置的研制与分析", 《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅱ辑》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113432873B (en) | 2022-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115791067B (en) | High-speed dynamic derivative test mechanism and working method thereof | |
| CN109211595B (en) | Torsion beam type rear suspension assembly turning lateral fatigue test rack | |
| CN105181333A (en) | Helicopter tail rotor system supporting combination joint bearing test machine | |
| CN110553843A (en) | triaxial elastic bearing bush fatigue testing machine | |
| CN107356426B (en) | Vertical side fatigue experiment device and method for longitudinally-arranged plate spring | |
| CN105675425A (en) | Abrasion testing tool of spherical hinge | |
| CN113218672B (en) | Durability test rack and test method for automobile drive axle differential assembly | |
| CN113432873B (en) | Ball head bearing life test device and method thereof | |
| CN107091752B (en) | Cargo vehicle V-shaped reaction rod bench test system | |
| CN110243579A (en) | A kind of rubber bushing pilot system | |
| CN109515748A (en) | A kind of aircraft flap non-linear force loading method | |
| CN211527807U (en) | Comprehensive mechanical test device for large-scale shaft parts | |
| CN211784232U (en) | Rail vehicle rocking arm node radially twists reverse service performance test bench | |
| CN204330256U (en) | Sheet parts flexible vibration durability test device | |
| CN210400852U (en) | Triaxial elastic bearing bush fatigue testing machine | |
| CN107314751A (en) | Friction lever transmission device | |
| CN220650011U (en) | Macpherson structure knuckle endurance test device | |
| CN209416711U (en) | Self-aligning bearing swings device for detecting durability | |
| CN220367003U (en) | Durable test stand capable of simulating envelope of brake hose in suspension movement | |
| CN219589931U (en) | I type distance rod composite loading durability bench test device | |
| CN219064858U (en) | Control arm ultimate strength frock | |
| CN220063334U (en) | Automobile third-order gradual change stiffness leaf spring fatigue test device | |
| CN205103042U (en) | Test swing arm fatigue performance can device | |
| CN219757722U (en) | Rubber joint comprehensive testing device | |
| CN112179686A (en) | Single wheel pair rail transfer test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |