CN2401311Y - Workpiece holder for ultraspeed test - Google Patents
Workpiece holder for ultraspeed test Download PDFInfo
- Publication number
- CN2401311Y CN2401311Y CN 99254516 CN99254516U CN2401311Y CN 2401311 Y CN2401311 Y CN 2401311Y CN 99254516 CN99254516 CN 99254516 CN 99254516 U CN99254516 U CN 99254516U CN 2401311 Y CN2401311 Y CN 2401311Y
- Authority
- CN
- China
- Prior art keywords
- cylinder
- spring
- keeper
- power transmission
- transmission shaft
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a connecting and gripping device between an ultraspeed test piece and a shaft, which comprises a positioning piece which is sheathed on a drive shaft, a spring, and a pressing plate, wherein, the positioning piece is a cylinder which is provided with a shaft hole at the centre of the top surface and is provided with a lug boss at the bottom surface; a dome is arranged between the positioning cylindrical surface at the exterior of the cylinder and the interface of the lug boss, and elastic strips with centrifugal blocks are evenly distributed at intervals on the top surface of the cylinder in turn along the circumferential direction; the spring for axially forcing the drive shaft is arranged in the cavity of the cylinder, the positioning piece is connected with the drive shaft by a drive pin, and the pressing plate is arranged at the upper end of the positioning piece by a compression nut on the drive shaft. The utility model has the advantage of convenient disassembly and assembly, and the utility model can ensure that a tested piece is always reliably connected with the drive shaft during test.
Description
The utility model relate to the hypervelocity test specimen with spool between connect clamping device.
The high speed revolving part must carry out overspeed test, and during test, the employing interference fit joint that is connected with of test specimen and axle, the problem of bringing are to install and remove extremely inconvenience, and the test period is long, and the frock expense is big, and the elasticity of employing centrifugal friction draw bail is also arranged.But all can't realize the process of raising speed-speed stabilizing-reduction of speed-raising speed-speed stabilizing-reduction of speed in an overspeed test, test specimen takes place and connects with axle and get loose or can't steady once more raising speed phenomenon in regular meeting.
The purpose of this utility model provides a kind of Workpiece clamping device of overspeed test, and its mounting or dismounting is convenient, connection is reliable, is suitable for realizing in an overspeed test process of raising speed-speed stabilizing-reduction of speed-raising speed-speed stabilizing-reduction of speed.
In order to achieve the above object, the Workpiece clamping device of the overspeed test that the utility model provides comprises the keeper that is nested with on power transmission shaft, spring and pressing plate, said keeper is that the end face center has axis hole, there is the cylinder of boss the bottom surface, have domatic between the positioning cylindrical surface of cylinder appearance and boss interface, at end face along circumferentially flexible uniformly at intervals successively, be provided with centrifugal on the top of elastic strip, spring places in the cylinder chamber, the one end props up a top inwall, the other end is against on the plane of dome cylinder of power transmission shaft, be used for the power transmission shaft axial force distribution, keeper links to each other with power transmission shaft by trundle, and pressing plate is installed in the upper end of keeper with the clamping nut on the power transmission shaft.
Usually, make centrifugal external diameter identical with the positioning cylindrical surface external diameter.For strengthening intensity, keeper processes with whole timber.
During test, to be enclosed within on the keeper by test specimen, tighten clamping nut, utilize pressing plate that test specimen and keeper are linked together, mainly come the rotation of motoring ring test part at low-speed stage by the interference fits tightness between testpieces and the positioning cylindrical surface, after rotating speed rises to a certain value, the centrifugal action of centrifugal generation of elasticity is at the testpieces endoporus, producing enough big moment of friction between the two comes the motoring ring test part to rotate at a high speed, along with the rising positioning cylindrical surface of rotating speed is ineffective gradually, finally come the rotation of motoring ring test part by centrifugal centrifugal friction moment under centrifugal force field of elasticity fully.When finishing raising speed for the first time, speed stabilizing is carried out the first time during reduction of speed, because the testpieces endoporus risen greatly, former setting circle cylinder has then lost positioning action, but at this moment spring to the power transmission shaft axial force distribution, make that test specimen and keeper are domatic to be close to, can guarantee that still boosting velocity procedure is steady for the second time.
The Workpiece clamping device of the overspeed test that the utility model provides, owing to adopt spring to the power transmission shaft axial force distribution with domatic location structure, can make in the whole rotary course in place by test specimen and the whole positive connection of power transmission shaft, in an overspeed test, realize the hypervelocity process of raising speed-speed stabilizing-reduction of speed-raising speed-speed stabilizing-reduction of speed, the device easy accessibility.
Below in conjunction with accompanying drawing the utility model is described in detail:
Fig. 1 is the utility model structure cutaway view.
With reference to Fig. 1, part shown in the chain-dotted line 5 is by test specimen among the figure.The Workpiece clamping device of the overspeed test that the utility model provides comprises the keeper 1 that is nested with on power transmission shaft 11, spring 2 and pressing plate 3, keeper 1 is that the end face center has axis hole 4, there is the cylinder of boss the bottom surface, 1.1 at the positioning cylindrical surface 6 of cylinder appearance and boss interface have domatic 7, at end face along circumferentially flexible uniformly at intervals successively 8, be provided with centrifugal 9 on the top of elastic strip 8, in this example, make centrifugal external diameter identical with the positioning cylindrical surface external diameter, the elastic strip cross section is less than centrifugal cross section, here, spring 2 adopts butterfly spring, perhaps also available cylindrical spring, it places in the cylinder chamber, and an end props up a top inwall, and the other end is against on the plane of dome cylinder 12 of power transmission shaft, keeper 1 usefulness trundle 13 is fixed with power transmission shaft, and the clamping nut 14 on the pressing plate 3 usefulness power transmission shafts is installed in the upper end of keeper 1.
Claims (4)
1. the Workpiece clamping device of overspeed test, it is characterized in that it comprises the keeper [1] that is nested with on power transmission shaft [11], spring [2] and pressing plate [3], said keeper [1] is that the end face center has axis hole [4], there is the cylinder of boss the bottom surface, have domatic [7] between the positioning cylindrical surface of cylinder appearance [6] and boss interface [1.1], at end face along circumferentially flexible uniformly at intervals successively [8], be provided with centrifugal [9] on the top of elastic strip [8], be used for the spring [2] of power transmission shaft axial force distribution is placed in the cylinder chamber, the one end props up a top inwall, the other end is against on the plane of dome cylinder [12] of power transmission shaft, keeper [1] links to each other with power transmission shaft by trundle [13], and pressing plate [3] utilizes the clamping nut [14] on the power transmission shaft to be installed in the upper end of keeper.
2. by the Workpiece clamping device of the described overspeed test of claim 1, it is characterized in that the external diameter of centrifugal [9] is identical with the external diameter of positioning cylindrical surface [6].
3. by the Workpiece clamping device of the described overspeed test of claim 1, it is characterized in that said spring [2] is butterfly spring or cylindrical spring.
4. by the Workpiece clamping device of the described overspeed test of claim 1, it is characterized in that said keeper [1] is the integral body that processes with whole timber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99254516 CN2401311Y (en) | 1999-11-17 | 1999-11-17 | Workpiece holder for ultraspeed test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99254516 CN2401311Y (en) | 1999-11-17 | 1999-11-17 | Workpiece holder for ultraspeed test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2401311Y true CN2401311Y (en) | 2000-10-18 |
Family
ID=34038122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99254516 Expired - Fee Related CN2401311Y (en) | 1999-11-17 | 1999-11-17 | Workpiece holder for ultraspeed test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2401311Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101513718B (en) * | 2009-04-01 | 2010-12-22 | 大连机床集团有限责任公司 | Automatic positioning compacting device |
| CN101696685B (en) * | 2009-11-05 | 2012-10-24 | 长沙赛尔机泵有限公司 | Impeller overspeed testing apparatus |
| CN105965468A (en) * | 2016-06-30 | 2016-09-28 | 马单 | Lining device |
| CN105965467A (en) * | 2016-06-30 | 2016-09-28 | 陈昊书 | Multi-purpose scribing system |
| CN107471051A (en) * | 2017-09-30 | 2017-12-15 | 湖州铭灏机械有限公司 | A kind of grinding machine |
| CN111964837A (en) * | 2020-07-29 | 2020-11-20 | 中国航发北京航科发动机控制系统科技有限公司 | Device and method for testing centrifugal flyweight and rotating speed of aircraft engine |
-
1999
- 1999-11-17 CN CN 99254516 patent/CN2401311Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101513718B (en) * | 2009-04-01 | 2010-12-22 | 大连机床集团有限责任公司 | Automatic positioning compacting device |
| CN101696685B (en) * | 2009-11-05 | 2012-10-24 | 长沙赛尔机泵有限公司 | Impeller overspeed testing apparatus |
| CN105965468A (en) * | 2016-06-30 | 2016-09-28 | 马单 | Lining device |
| CN105965467A (en) * | 2016-06-30 | 2016-09-28 | 陈昊书 | Multi-purpose scribing system |
| CN107471051A (en) * | 2017-09-30 | 2017-12-15 | 湖州铭灏机械有限公司 | A kind of grinding machine |
| CN111964837A (en) * | 2020-07-29 | 2020-11-20 | 中国航发北京航科发动机控制系统科技有限公司 | Device and method for testing centrifugal flyweight and rotating speed of aircraft engine |
| CN111964837B (en) * | 2020-07-29 | 2022-05-13 | 中国航发北京航科发动机控制系统科技有限公司 | Device and method for testing centrifugal flyweight and rotating speed of aircraft engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |