CN113390639A - Tool and method for detecting rated static load of radial rolling bearing - Google Patents
Tool and method for detecting rated static load of radial rolling bearing Download PDFInfo
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- CN113390639A CN113390639A CN202110747333.0A CN202110747333A CN113390639A CN 113390639 A CN113390639 A CN 113390639A CN 202110747333 A CN202110747333 A CN 202110747333A CN 113390639 A CN113390639 A CN 113390639A
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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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Abstract
The invention discloses a radial rolling bearing rated static load detection tool and a detection method, wherein the tool comprises a base, two support frames, a rotating shaft, a fixed sleeve and a test rod, wherein the two support frames are detachably and symmetrically arranged on the base, the rotating shaft is rotatably supported by the two support frames, the fixed sleeve is arranged on the radial outer side of the rotating shaft, the test rod provides radial static load, a bearing to be tested is sleeved on the rotating shaft, the fixed sleeve is sleeved on the radial outer side of the bearing to be tested so as to axially limit the bearing to be tested between the two support frames, and a test plane matched with the test rod is arranged on the periphery of the fixed sleeve. The detection tool and the detection method provided by the invention can realize simple and efficient detection of the rated static load of the bearing.
Description
Technical Field
The invention relates to the technical field of bearing detection, in particular to a tool and a method for detecting rated static load of a radial rolling bearing.
Background
The main function of the bearing is to support the mechanical rotating body, the rated static load of the bearing refers to the maximum load that the bearing can bear, which affects the service condition and the service life of the bearing, especially the low-speed heavy-load bearing has high requirements on the bearing capacity of the bearing. How to rapidly and efficiently detect and judge whether the rated static load of the bearing meets the requirements before use is a difficult point of bearing detection.
Disclosure of Invention
The invention aims to provide a tool and a method for detecting the rated static load of a radial rolling bearing, which can realize simple and efficient detection of the rated static load of the bearing.
Based on the above problems, one of the technical solutions provided by the present invention is:
the utility model provides a radial antifriction bearing rated static load detects frock, includes the base, can dismantle the symmetry and install two support frames on the base, via two support frames rotate the rotation axis of support, set up and are in fixed cover of the radial outside of rotation axis and the test bar that provides radial static load, the bearing housing that awaits measuring is established on the rotation axis, fixed cover is established the radial outside of bearing that awaits measuring is in order to incite somebody to action the bearing axial that awaits measuring is spacing between two support frames, be equipped with in the periphery of fixed cover with the test plane that the test bar matches.
Further, the rotating shaft is supported on the supporting frame through a supporting bearing, and a stepped hole is formed in the supporting frame and used for being mounted on the supporting bearing.
Furthermore, a bearing mounting hole for mounting the bearing to be tested is formed in one axial end of the fixing sleeve, and a limiting step matched with the bearing to be tested is formed in the inner end of the bearing mounting hole.
Furthermore, a first limiting boss extending to the outside in the radial direction is arranged on the rotating shaft, one axial end of the first limiting boss is abutted to one axial end of the bearing to be tested, the other axial end of the first limiting boss is abutted to one supporting bearing, and the other axial end of the bearing to be tested is abutted to the limiting step.
Furthermore, fixed cover axial other end is equipped with dodges the hole, the circumference of dodging the hole forms the spacing boss of second, the spacing boss of second and another support bearing and the support frame looks butt that corresponds.
Furthermore, the fixed sleeve is provided with two testing planes, and the two testing planes are positioned on the two radial sides of the fixed sleeve.
Furthermore, the two opposite sides of the support frame are respectively provided with a fixing lug, and the fixing lugs are fixed on the base through bolts.
Based on the above problems, the present invention also provides another technical solution:
a detection method of a radial rolling bearing rated static load detection tool comprises the following steps:
(1) mounting a bearing to be tested on the rotating shaft, and mounting the fixed sleeve on the bearing to be tested;
(2) installing two support bearings in the two support frames respectively;
(3) sleeving the components of the support bearing and the support frame which are installed in the step (2) on a rotating shaft respectively, installing the components in bilateral symmetry and forming axial limit on the bearing to be measured;
(4) fixing the assembly installed in the step (3) on a base through a bolt;
(5) fixing the assembly installed in the step (4) on a test platform of a universal test machine through bolts;
(6) mounting the test rod on a motion shaft of a universal testing machine through a pin shaft;
(7) setting the speed of a moving shaft of the universal testing machine and rated static load parameters of the bearing to be tested, keeping the bearing to be tested for a corresponding time length under the corresponding rated static load, unloading after the test is finished, and judging whether the bearing passes the test by manually rotating the rotating shaft to have the clamping stagnation phenomenon.
Compared with the prior art, the invention has the advantages that:
the bearing to be detected is installed on the detection tool, then the detection tool is installed on the test platform of the universal test machine, the rated static load detection of the bearing can be completed by setting the test parameters of the universal test machine, whether the bearing capacity of the bearing meets the design and use requirements or not is quickly judged, and the occurrence of bearing failure accidents caused by improper product selection due to the fact that a customer directly selects the bearing according to design data without detection is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a first schematic structural view of an embodiment of a radial rolling bearing static load rating detection tool of the present invention;
FIG. 2 is a second schematic structural diagram according to an embodiment of the present invention;
fig. 3 is a first schematic structural view of the fixing sleeve according to the embodiment of the present invention;
fig. 4 is a second schematic structural view of the fixing sleeve in the embodiment of the present invention;
FIG. 5 is a state diagram illustrating the use of an embodiment of the present invention;
wherein:
1. a base;
2. a support frame; 2-1, a stepped hole; 2-2, fixing the lug;
3. a rotating shaft; 3-1, a first limiting boss;
4. fixing a sleeve; 4-1, bearing mounting holes; 4-2, limiting steps; 4-3, avoiding holes; 4-4, a second limiting boss; 4-5, testing the plane;
5. a test rod;
6. a bearing to be tested;
7. a support bearing;
8. a universal testing machine; 8-1, testing a platform; 8-2, a motion axis;
9. a bolt;
10. and (7) a pin shaft.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
Referring to fig. 1-2, a schematic structural diagram of an embodiment of the present invention provides a tooling for detecting a nominal static load of a radial rolling bearing, which includes a base 1, two support frames 2 detachably and symmetrically installed on the base 1, a rotating shaft 3 rotatably supported by the two support frames 2, a fixing sleeve 4 disposed on a radial outer side of the rotating shaft 3, and a testing rod 5 providing a radial static load, wherein a bearing 6 to be tested is sleeved on the rotating shaft 3, the fixing sleeve 4 is sleeved on a radial outer side of the bearing 6 to be tested to axially limit the bearing 6 to be tested between the two support frames 2, and a testing plane 4-5 matched with the testing rod 5 is disposed on an outer periphery of the fixing sleeve 4.
The rotating shaft 3 is supported on the support frame 2 through a support bearing 7, a stepped hole 2-1 is arranged in the support frame 2 for mounting the support bearing 7, and the support bearing 7 is a double-row angular contact ball bearing in the embodiment.
With reference to fig. 3-4, in order to fix the bearing 6 to be tested, a bearing mounting hole 4-1 for mounting the bearing 6 to be tested is formed at one axial end of the fixed sleeve 4, and a limiting step 4-2 matched with the bearing 6 to be tested is formed at the inner end of the bearing mounting hole 4-1.
In order to realize the axial limiting of the bearing 6 to be measured between the two support frames 2, a first limiting boss 3-1 extending to the radial outer side is arranged on the rotating shaft 3, one axial end of the first limiting boss 3-1 is abutted with one axial end of the bearing 6 to be measured, the other axial end of the first limiting boss 3-1 is abutted with one support bearing 7, and the other axial end of the bearing 6 to be measured is abutted with the limiting step 4-2. An avoiding hole 4-3 is arranged at the other axial end of the fixed sleeve 4, a second limiting boss 4-4 is formed in the circumferential direction of the avoiding hole 4-3, and the second limiting boss 4-4 is abutted with the other supporting bearing 7 and the corresponding supporting frame 2. Thereby, the axial positioning of the bearing 6 to be measured between the two support frames 2 is achieved.
In this example, two opposite sides of the supporting frame 2 are respectively provided with a fixing lug 2-2, and the fixing lugs 2-2 are fixed on the base 1 through bolts 9. Referring to fig. 5, a threaded hole is formed in the base 1 so as to be fixed on a test platform 8-1 of the universal tester 8 through a bolt 9, the universal tester 8 is a prior art, and the details of the present invention are not repeated.
In this embodiment, the fixing sleeve 4 is provided with two testing planes 4-5, and the two testing planes 4-5 are located at two radial sides of the fixing sleeve 4, and the testing planes 4-5 are arranged to form surface-to-surface contact with the testing planes, so that the stress is uniform during testing.
The detection method of the radial rolling bearing rated static load detection tool comprises the following steps:
(1) installing a bearing 6 to be tested on the rotating shaft 3, and then installing the fixed sleeve 4 on the bearing 6 to be tested;
(2) two support bearings 7 are respectively arranged in the two support frames 2;
(3) respectively sleeving the components of the support bearing 7 and the support frame 2 which are installed in the step (2) on the rotating shaft 3, and installing the components in bilateral symmetry to form axial limit on the bearing 6 to be tested;
(4) fixing the assembly installed in the step (3) on the base 1 through a bolt 9;
(5) fixing the assembly installed in the step (4) on a test platform 8-1 of a universal test machine 8 through a bolt 9;
(6) the test rod 5 is arranged on a motion shaft 8-2 of a universal testing machine 8 through a pin shaft 10;
(7) setting the speed of a moving shaft 8-2 of the universal testing machine 8 and rated static load parameters of the bearing 6 to be tested, keeping the bearing 6 to be tested under the corresponding rated static load for a corresponding time length, unloading after the test is finished, and judging whether the bearing passes the test by manually rotating the rotating shaft 3 to avoid the clamping stagnation phenomenon.
The above examples are only for illustrating the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a radial rolling bearing rated static load detects frock which characterized in that: including the base, can dismantle the symmetry install two support frames on the base, via two support frames rotate the rotation axis of support, set up and are in fixed cover of the radial outside of rotation axis and the test bar that provides radial static load, the bearing housing that awaits measuring is established on the rotation axis, fixed cover is established the radial outside of the bearing that awaits measuring is in order to incite somebody to action the bearing axial that awaits measuring is spacing between two support frames, be equipped with in the periphery of fixed cover with the test plane that the test bar matches.
2. A tool for detecting static load rating of a radial rolling bearing according to claim 1, wherein: the rotating shaft is supported on the support frame through a support bearing, and a stepped hole is formed in the support frame and used for being mounted on the support bearing.
3. A tool for detecting static load rating of a radial rolling bearing according to claim 2, wherein: the bearing mounting hole is formed in one axial end of the fixing sleeve and used for mounting the bearing to be tested, and a limiting step matched with the bearing to be tested is formed in the inner end of the bearing mounting hole.
4. A tool for detecting static load rating of a radial rolling bearing according to claim 3, wherein: the rotating shaft is provided with a first limiting boss extending to the radial outer side, one axial end of the first limiting boss is abutted to one axial end of the bearing to be tested, the other axial end of the first limiting boss is abutted to one supporting bearing, and the other axial end of the bearing to be tested is abutted to the limiting step.
5. A tool for detecting static load rating of a radial rolling bearing according to claim 3, wherein: the fixed cover axial other end is equipped with dodges the hole, the circumference of dodging the hole forms the spacing boss of second, the spacing boss of second and another support bearing and the support frame looks butt that corresponds.
6. A tool for detecting static load rating of a radial rolling bearing according to claim 1, wherein: the fixed sleeve is provided with two testing planes, and the two testing planes are positioned on the two radial sides of the fixed sleeve.
7. A tool for detecting static load rating of a radial rolling bearing according to claim 1, wherein: the two opposite sides of the support frame are respectively provided with a fixing lug, and the fixing lugs are fixed on the base through bolts.
8. A detection method for a radial rolling bearing rated static load detection tool is characterized by comprising the following steps:
(1) mounting a bearing to be tested on the rotating shaft, and mounting the fixed sleeve on the bearing to be tested;
(2) installing two support bearings in the two support frames respectively;
(3) sleeving the components of the support bearing and the support frame which are installed in the step (2) on a rotating shaft respectively, installing the components in bilateral symmetry and forming axial limit on the bearing to be measured;
(4) fixing the assembly installed in the step (3) on a base through a bolt;
(5) fixing the assembly installed in the step (4) on a test platform of a universal test machine through bolts;
(6) mounting the test rod on a motion shaft of a universal testing machine through a pin shaft;
(7) setting the speed of a moving shaft of the universal testing machine and rated static load parameters of the bearing to be tested, keeping the bearing to be tested for a corresponding time length under the corresponding rated static load, unloading after the test is finished, and judging whether the bearing passes the test by manually rotating the rotating shaft to have the clamping stagnation phenomenon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110747333.0A CN113390639A (en) | 2021-07-02 | 2021-07-02 | Tool and method for detecting rated static load of radial rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110747333.0A CN113390639A (en) | 2021-07-02 | 2021-07-02 | Tool and method for detecting rated static load of radial rolling bearing |
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| CN113390639A true CN113390639A (en) | 2021-09-14 |
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|---|---|---|---|
| CN202110747333.0A Pending CN113390639A (en) | 2021-07-02 | 2021-07-02 | Tool and method for detecting rated static load of radial rolling bearing |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08159891A (en) * | 1994-12-08 | 1996-06-21 | Nippon Seiko Kk | Load measuring apparatus for radial bearing |
| CN105122028A (en) * | 2013-04-05 | 2015-12-02 | 日本精工株式会社 | Method for testing service life of radial-rolling bearing and radial-rolling-bearing testing device |
| US20160054198A1 (en) * | 2013-04-05 | 2016-02-25 | Nsk Ltd. | Rolling-bearing testing device |
| CN107436239A (en) * | 2017-09-11 | 2017-12-05 | 中国航发哈尔滨轴承有限公司 | Grease lubricating bearing exerciser |
| CN206818416U (en) * | 2016-07-21 | 2017-12-29 | 王朝阁 | A kind of rolling bearing fault simulated experiment platform for being easy to add load |
| CN207751798U (en) * | 2018-01-30 | 2018-08-21 | 中国航空发动机研究院 | Rolling bearing static rigidity detection device |
| CN111504642A (en) * | 2020-06-08 | 2020-08-07 | 潍坊科技学院 | Bearing experiment table capable of applying complex load |
| CN211262708U (en) * | 2020-01-20 | 2020-08-14 | 杭州现代机械有限公司 | Bearing life testing device |
| CN112161803A (en) * | 2020-09-16 | 2021-01-01 | 上海市轴承技术研究所 | Rolling bearing life-span energy consumption testing machine under combined load |
-
2021
- 2021-07-02 CN CN202110747333.0A patent/CN113390639A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08159891A (en) * | 1994-12-08 | 1996-06-21 | Nippon Seiko Kk | Load measuring apparatus for radial bearing |
| CN105122028A (en) * | 2013-04-05 | 2015-12-02 | 日本精工株式会社 | Method for testing service life of radial-rolling bearing and radial-rolling-bearing testing device |
| US20160054198A1 (en) * | 2013-04-05 | 2016-02-25 | Nsk Ltd. | Rolling-bearing testing device |
| CN206818416U (en) * | 2016-07-21 | 2017-12-29 | 王朝阁 | A kind of rolling bearing fault simulated experiment platform for being easy to add load |
| CN107436239A (en) * | 2017-09-11 | 2017-12-05 | 中国航发哈尔滨轴承有限公司 | Grease lubricating bearing exerciser |
| CN207751798U (en) * | 2018-01-30 | 2018-08-21 | 中国航空发动机研究院 | Rolling bearing static rigidity detection device |
| CN211262708U (en) * | 2020-01-20 | 2020-08-14 | 杭州现代机械有限公司 | Bearing life testing device |
| CN111504642A (en) * | 2020-06-08 | 2020-08-07 | 潍坊科技学院 | Bearing experiment table capable of applying complex load |
| CN112161803A (en) * | 2020-09-16 | 2021-01-01 | 上海市轴承技术研究所 | Rolling bearing life-span energy consumption testing machine under combined load |
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