CN112362347A - Service life testing machine for cylindrical roller bearing without inner ring - Google Patents
Service life testing machine for cylindrical roller bearing without inner ring Download PDFInfo
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- CN112362347A CN112362347A CN202011423318.2A CN202011423318A CN112362347A CN 112362347 A CN112362347 A CN 112362347A CN 202011423318 A CN202011423318 A CN 202011423318A CN 112362347 A CN112362347 A CN 112362347A
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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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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a service life testing machine for a cylindrical roller bearing without an inner ring, which relates to a bearing service life testing machine and aims to solve the problem that the existing bearing service life testing machine for a main shaft of a gearbox carries out bearing service life strengthening test before the use of the cylindrical roller bearing without the inner ring, cannot meet the requirement of the bearing test working condition and comprises a base, an upper cover, a radial loading mechanism, a transmission shaft, an electric main shaft, two test-accompanying bearings and two axial lubricating mechanisms; the upper cover is installed on the base, and transmission shaft horizontal installation is on the base, and the transmission shaft is connected through two company's of accompanying with the base rotation, and two axial lubrication mechanism install on the outside base of transmission shaft, and radial loading mechanism installs on the upper cover, and experimental bearing suit is on the transmission shaft, 8 one end of transmission shaft and the output shaft fixed connection of electricity main shaft. The invention is used for the field of bearing testing.
Description
Technical Field
The invention relates to a bearing life tester, in particular to a life tester for a cylindrical roller bearing without an inner ring.
Background
The support bearing for the main shaft of the gearbox of a certain type of automobile is a cylindrical roller bearing without an inner ring, most of the currently adopted bearings are imported bearings, the cost of the imported bearings is high, and most of the bearings cannot meet the requirements of the main shaft of the gearbox on the service environment of the bearings. The cylindrical roller bearing without the inner ring for the automobile gearbox needs to be researched and developed to replace an imported bearing. Therefore, the bearing life strengthening test is required to be carried out on the cylindrical bearing without the inner ring before the bearing is put into use, the test rotating speed of the series of bearings is within 5000r/min, the radial load needs to be changed frequently, the radial load can meet the test condition at 30000N to the maximum extent, the conventional bearing life testing machine cannot meet the test working condition requirement of the bearing, and the bearing life testing machine without the inner ring is required to be researched and designed according to the test requirement of a bearing product, so that the bearing life strengthening test is required to be carried out on the cylindrical bearing without the inner ring for the gearbox of the new energy automobile.
Disclosure of Invention
The invention aims to solve the problem that the existing bearing life tester for the cylindrical roller bearing without the inner ring for the main shaft of the gearbox cannot meet the test working condition requirement of the bearing before being used for bearing life strengthening test, and further provides the life tester for the cylindrical roller bearing without the inner ring.
The technical scheme adopted by the invention for solving the problems is as follows:
the device comprises a base, an upper cover, a radial loading mechanism, a transmission shaft, an electric spindle, two test-accompanying bearings and two axial lubricating mechanisms; the upper cover is installed on the base, and transmission shaft horizontal installation is on the base, and the transmission shaft is connected through two company's of accompanying with the base rotation, and two axial lubrication mechanism install on the outside base of transmission shaft, and radial loading mechanism installs on the upper cover, and experimental bearing suit is on the transmission shaft, 8 one end of transmission shaft and the output shaft fixed connection of electricity main shaft.
The invention has the beneficial effects that:
1. the bearing service life testing machine carries out service life strengthening test on a bearing for an automobile gearbox main shaft, simulates the requirements of a bearing service environment, judges whether the service performance of a new product bearing meets the design requirements, enables the inner ring-free cylindrical roller bearing to reach the use requirements of users, and brings greater economic benefit for companies when new products of bearings of companies enter the field of new energy automobile gearboxes.
2. The tester is independently designed, researched and manufactured according to the technical requirement of the service life strengthening test of the cylindrical roller bearing without the inner ring, and is put into use in a bearing test room to carry out various types of related bearing tests. Through installation and debugging, the operation is stable and reliable, and various technical indexes required by a novel bearing test are completed. The device has stable performance through practical inspection, achieves the expected design target and is in an advanced level in the industry.
Drawings
Fig. 1 is a front sectional view of the overall structure of the present application.
Fig. 2 is a front view of the overall structure of the present application.
Fig. 3 is a left side view of fig. 2.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to fig. 3, and the life testing machine for a cylindrical roller bearing without an inner ring in the embodiment includes a base 1, an upper cover 4, a radial loading mechanism 5, a transmission shaft 8, an electric spindle 10, two test-accompanying bearings 2 and two axial lubrication mechanisms 3; upper cover 4 installs on base 1, and 8 horizontal installations of transmission shaft are on base 1, and transmission shaft 8 rotates with base 1 through two company's examination bearings 2 and is connected, and two axial lubrication mechanism 3 are installed on 8 outside bases 1 of transmission shaft, and radial loading mechanism 5 is installed on upper cover 4, and 6 suits of experimental bearing are on transmission shaft 8, the one end of transmission shaft 8 and electric main shaft 10's output shaft fixed connection.
Axial lubrication mechanism 3 can accompany examination bearing 2 and test bearing 6 simultaneously and cool down lubricated in this embodiment, when satisfying the high-speed operation of testing machine, the required lubricated oil mass of bearing.
The tester is used for testing the high-precision cylindrical roller bearing without the inner ring, and the tested bearing is a bearing with the inner diameter phi of 50-phi 110mm and the outer diameter phi of 90-phi 150 mm. The testing machine realizes 10000r/min stepless speed regulation of the testing shaft, has an automatic heating system, can heat the oil temperature of bearing lubricating oil according to the testing requirement, simulates the temperature change of the bearing testing required lubricating oil, and can accurately control the lubricating oil quantity of the bearing. The modified testing machine can automatically collect signals such as radial loading of the bearing, temperature of the bearing, rotating speed and the like, the operation console can realize functions of automatic monitoring and data display after each parameter of the test is set, and test data can be automatically stored. The automatic alarm and shutdown functions are realized after the tester breaks down, so that the safety of the tester equipment and the safety of operation are ensured.
The second embodiment is as follows: the embodiment is described with reference to fig. 1 to fig. 3, and the service life testing machine for the cylindrical roller bearing without the inner ring according to the embodiment further includes a test bearing housing 7, the test bearing 6 is installed in the test bearing housing 7, and the test bearing 6 is sleeved on a transmission shaft 8 between the axial lubrication mechanisms 3. The rest is the same as the first embodiment.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1 to 2, and the axial lubrication mechanism 3 is fixedly mounted on the base 1 by bolts in the life tester for the cylindrical roller bearing without the inner ring according to the present embodiment. The rest is the same as the first embodiment.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 1 to fig. 2, and the service life testing machine for the cylindrical roller bearing without the inner ring according to the embodiment further includes a coupler 9, and the transmission shaft 8 is fixedly connected with a rotating shaft of the electric spindle 10 through the coupler 9. The rest is the same as the first embodiment.
Principle of operation
Before the bearing testing machine works, the upper cover 4 is opened, a tool of the cylindrical roller bearing without the inner ring for testing is installed in a cavity of the testing machine, the upper cover 4 is installed, and a bolt is locked. During operation, according to the bearing test requirements, relevant test parameters such as the rotating speed of the bearing for test, the magnitude of radial loading force, the working rotating speed of the electric spindle 10 and the like are set on the operation control console. After the frock is connected and is accomplished, the loading of radial loading mechanism 5 is accomplished, operation control cabinet starts electric main shaft 10, and the test machine driving system is driven by electric main shaft, links to each other with transmission shaft 8 through shaft coupling 9, and the transmission shaft both ends are two and accompany examination bearings 2, and the centre is a test bearing 6 of experimental usefulness, and transmission shaft 8 drives the interior roller rotation of bearing, realizes the survey to test bearing temperature, rotational speed, life-span, and lubricated mechanism accomplishes the bearing lubrication simultaneously, guarantees that the bearing life test goes on smoothly.
Claims (4)
1. The utility model provides a no inner circle cylindrical roller bearing life-span testing machine which characterized in that: the device comprises a base (1), an upper cover (4), a radial loading mechanism (5), a transmission shaft (8), an electric spindle (10), two test-accompanying bearings (2) and two axial lubricating mechanisms (3); upper cover (4) are installed on base (1), transmission shaft (8) horizontal installation is on base (1), transmission shaft (8) are connected with base (1) rotation through two examination bearings (2) of accompanying, install on base (1) of transmission shaft (8) outside two axial lubrication mechanism (3), radial loading mechanism (5) are installed on upper cover (4), experimental bearing (6) suit is on transmission shaft (8), the one end of transmission shaft (8) and the output shaft fixed connection of electricity main shaft (10).
2. The inner ring-free cylindrical roller bearing life tester as claimed in claim 1, wherein: the test device further comprises a test bearing shell (7), the test bearing (6) is installed in the test bearing shell (7), and the test bearing (6) is sleeved on a transmission shaft (8) between the axial lubrication mechanisms (3).
3. The inner ring-free cylindrical roller bearing life tester as claimed in claim 1, wherein: the axial lubricating mechanism (3) is fixedly arranged on the base (1) through a bolt.
4. The inner ring-free cylindrical roller bearing life tester as claimed in claim 1, wherein: the electric spindle further comprises a coupler (9), and the transmission shaft (8) is fixedly connected with a rotating shaft of the electric spindle (10) through the coupler (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011423318.2A CN112362347A (en) | 2020-12-08 | 2020-12-08 | Service life testing machine for cylindrical roller bearing without inner ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011423318.2A CN112362347A (en) | 2020-12-08 | 2020-12-08 | Service life testing machine for cylindrical roller bearing without inner ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112362347A true CN112362347A (en) | 2021-02-12 |
Family
ID=74536049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011423318.2A Withdrawn CN112362347A (en) | 2020-12-08 | 2020-12-08 | Service life testing machine for cylindrical roller bearing without inner ring |
Country Status (1)
| Country | Link |
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| CN (1) | CN112362347A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486249A (en) * | 2022-01-25 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Load loading device and method for slewing bearing performance test bench |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205483562U (en) * | 2016-01-09 | 2016-08-17 | 哈尔滨轴承集团公司 | High -speed precision bearing life test machine of HZ250 |
| CN106525429A (en) * | 2016-12-26 | 2017-03-22 | 河南科技大学 | Angular contact bearing dual-rotor testing machine |
| CN209639967U (en) * | 2018-12-19 | 2019-11-15 | 哈尔滨轴承集团公司 | Cylindrical roller bearing without inner ring life test machine |
-
2020
- 2020-12-08 CN CN202011423318.2A patent/CN112362347A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205483562U (en) * | 2016-01-09 | 2016-08-17 | 哈尔滨轴承集团公司 | High -speed precision bearing life test machine of HZ250 |
| CN106525429A (en) * | 2016-12-26 | 2017-03-22 | 河南科技大学 | Angular contact bearing dual-rotor testing machine |
| CN209639967U (en) * | 2018-12-19 | 2019-11-15 | 哈尔滨轴承集团公司 | Cylindrical roller bearing without inner ring life test machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486249A (en) * | 2022-01-25 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Load loading device and method for slewing bearing performance test bench |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210212 |