CN201555762U - Self-adapting clamp for sliding friction test - Google Patents
Self-adapting clamp for sliding friction test Download PDFInfo
- Publication number
- CN201555762U CN201555762U CN2009202988829U CN200920298882U CN201555762U CN 201555762 U CN201555762 U CN 201555762U CN 2009202988829 U CN2009202988829 U CN 2009202988829U CN 200920298882 U CN200920298882 U CN 200920298882U CN 201555762 U CN201555762 U CN 201555762U
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- transmission shaft
- frication
- segment
- ball segment
- self
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Abstract
A self-adapting clamp for sliding friction test is composed of a transmission shaft connected with a frication test machine, a ball segment contacted with an arc surface of the transmission shaft, a set ball segment and a clamping sleeve fixed on the transmission shaft, wherein the middle portion of the ball segment is provided with a sample phase fixing screw hole, and a lower end port of the clamping sleeve is provided with an arc arm which is inclined inwards and plays a clamping role to the ball segment. The ball segment is contacted with the arc surface of the transmission shaft since the samples of a frication pair in the sliding frication tests are fixed through the ball segment, the trimming of the ball segment on any direction in the clamping sleeve can drive the fixed samples to move slightly together, thereby automatically adapting to the changes of surface conditions in the contact zone in the sliding frication process, and the frication pair can keep comprehensive contact, thereby solving the end surface adjustment problem among frication pairs in the sliding frication test process. The self-adapting clamp has simple structure, low cost and excellent use effect.
Description
Technical field
The utility model relates to a kind of sliding friction test self-adaptation chuck, is particularly useful for the interior friction wear testing machine of tribological field of machine-building subject.
Background technology
In industry of making subject and research, be very important to the performance test and the control of the rubbing wear of moving component.Obtain in the certain hour by friction wear testing machine, friction factor variation characteristic data under varying environment such as humidity, temperature and lubricated condition for the friction and wear characteristic of analyzing and estimate moving component highly significant, and are extremely important to the quality control of moving component.At present, the function of friction wear testing machine is more and more, and the motor pattern of upper and lower sample becomes increasingly complex, and the scope of load and speed is more and more wider, yet for the sliding friction form of face-face contact, the end face adjustment between the friction pair that upper and lower sample is formed is the problem of comparison difficulty always.End face between friction pair is adjusted bad, can not correctly reflect the friction characteristic between friction pair.At present, in friction-wear test, the end face adjustment mode of employing is by after manual installation, fixing, and determines by range estimation, running-in.Doing like this needs the running-in of the long period stage, and in addition, through after the running-in, the initial surface state between friction pair does not exist; Besides friction pair rigidly fixed after, in the fricting movement process, because the variation of clamping force, the factors such as variation of friction pair contact region surface state can cause both ends of the surface can not continue to keep comprehensive engagement, thereby can change even worsen the contact condition of surperficial contact region.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, and compactness is cheap, the sliding friction test self-adaptation chuck that result of use is good.
The utility model sliding friction test self-adaptation chuck, by the transmission shaft that is connected with frictional testing machine, with the contacted segment of transmission shaft cambered surface, suit segment and the retaining sleeve that is fixed on the transmission shaft constitute, middle part, the bottom surface of segment is provided with sample and fixes screw, and the lower port of retaining sleeve has to slope inwardly and segment played the arc groove of clamping action.
Described transmission shaft, retaining sleeve and segment all adopt the GCr15 material to make; Described retaining sleeve 2 is threaded with transmission shaft.
Beneficial effect: owing to the sample of friction pair during fixedly sliding friction is tested by segment, and segment contacts with the transmission shaft cambered surface, sample can be adjusted automatically with the situation of friction pair end face in process of the test, the fine motion of segment any direction in retaining sleeve, the sample that drive is fixed fine motion together, with the variation of contact region surface appearance in the automatic adaptation sliding friction process, make friction pair keep comprehensive engagement.Therefore can solve the adjustment of the end face between friction pair problem in the sliding friction process of the test, the artificial subjective factor of avoiding conventional adjustment mode to exist; Reduce even avoid the running-in stage, save time, more can reflect the initial surface state between friction pair, make the rubbing wear data more accurate; Match with frictional testing machine easily, by the clamping sample and adaptation function is provided, adjust problem thereby solve in the sliding friction process of the test end face between friction pair.It is simple in structure, and is cheap, and result of use is good, has practicality widely.
Description of drawings
Fig. 1 is an apparatus structure synoptic diagram of the present utility model.
Among the figure: 1-transmission shaft, 2-retaining sleeve, 3-segment.
Embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is described further:
Shown in the accompanying drawing, sliding friction test self-adaptation chuck of the present utility model mainly is made of transmission shaft 1, retaining sleeve 2 and segment 3.Wherein: an end of transmission shaft 1 is connected with frictional testing machine, the other end is cambered surface, matches with the sphere of segment 3, and retaining sleeve 2 suit segments 3 also are connected with transmission shaft 1 screw thread, the lower port place of retaining sleeve 2 is intilted arc groove, to 3 clamping actions of segment; Segment 3 end faces bottom has the fixedly threaded hole of sample, and transmission shaft 1, retaining sleeve 2 all adopt the GCr15 material to make with segment 3, smooth surface, and have intensity and surface abrasion resistance preferably.The sample of friction pair is fixed by central screw hole and segment 3, transmission shaft 1 passes to sample with the load that frictional testing machine applies by segment 3, sample can carry out the fine motion of any direction with segment 3 in retaining sleeve 2, variation with contact region surface appearance in the automatic adaptation sliding friction process makes to keep comprehensive engagement between friction pair end face.
Claims (3)
1. the self-adaptation chuck is tested in a sliding friction, it is characterized in that: it is by the transmission shaft that is connected with frictional testing machine (1), with the contacted segment of transmission shaft (1) cambered surface (3), suit segment (3) and the retaining sleeve (2) that is fixed on the transmission shaft (1) constitute, the middle part, bottom surface of segment (3) is provided with sample and fixes screw, and the lower port of retaining sleeve (2) has the arc groove that slopes inwardly to segment (a 3) clamping action.
2. sliding friction test self-adaptation chuck according to claim 1, it is characterized in that: described transmission shaft (1), retaining sleeve (2) all adopt the GCr15 material to make with segment (3).
3. sliding friction test self-adaptation chuck according to claim 1 and 2, it is characterized in that: described retaining sleeve (2) is threaded with transmission shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202988829U CN201555762U (en) | 2009-12-19 | 2009-12-19 | Self-adapting clamp for sliding friction test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202988829U CN201555762U (en) | 2009-12-19 | 2009-12-19 | Self-adapting clamp for sliding friction test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201555762U true CN201555762U (en) | 2010-08-18 |
Family
ID=42615450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202988829U Expired - Fee Related CN201555762U (en) | 2009-12-19 | 2009-12-19 | Self-adapting clamp for sliding friction test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201555762U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352794A (en) * | 2015-12-07 | 2016-02-24 | 中国矿业大学 | Test piece fixture capable of guaranteeing self-adaptive contact of friction surfaces |
| CN106840931A (en) * | 2016-12-27 | 2017-06-13 | 北京化工大学 | A kind of oil field many test block friction wear testing machines self-regulation chucks of macromolecular material |
| CN109211703A (en) * | 2017-12-13 | 2019-01-15 | 中国航空制造技术研究院 | A kind of micro-moving frictional wear experimental rig |
| CN113834723A (en) * | 2021-09-15 | 2021-12-24 | 郑州航空工业管理学院 | Four-point bending test fixture with self-adjusting capability and application method thereof |
-
2009
- 2009-12-19 CN CN2009202988829U patent/CN201555762U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352794A (en) * | 2015-12-07 | 2016-02-24 | 中国矿业大学 | Test piece fixture capable of guaranteeing self-adaptive contact of friction surfaces |
| CN106840931A (en) * | 2016-12-27 | 2017-06-13 | 北京化工大学 | A kind of oil field many test block friction wear testing machines self-regulation chucks of macromolecular material |
| CN109211703A (en) * | 2017-12-13 | 2019-01-15 | 中国航空制造技术研究院 | A kind of micro-moving frictional wear experimental rig |
| CN109211703B (en) * | 2017-12-13 | 2021-04-13 | 中国航空制造技术研究院 | Fretting friction wear test device |
| CN113834723A (en) * | 2021-09-15 | 2021-12-24 | 郑州航空工业管理学院 | Four-point bending test fixture with self-adjusting capability and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20101219 |