CN103331215A - Centrifugal machine test-piece horizontal reversing locking device - Google Patents
Centrifugal machine test-piece horizontal reversing locking device Download PDFInfo
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- CN103331215A CN103331215A CN 201310284600 CN201310284600A CN103331215A CN 103331215 A CN103331215 A CN 103331215A CN 201310284600 CN201310284600 CN 201310284600 CN 201310284600 A CN201310284600 A CN 201310284600A CN 103331215 A CN103331215 A CN 103331215A
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Abstract
The invention discloses a centrifugal machine test-piece horizontal reversing locking device. The centrifugal machine test-piece horizontal reversing locking device comprises a rotary test platform used for installing a test piece. An installment hole is formed in a rotary arm of a centrifugal machine; the rotary test platform is installed in the installment hole through a fixing device; the fixing device comprises a reversing pin and a locking module; a pin groove is formed in the position, close to the edge of the rotary test platform and the center of the rotary arm, on the rotary arm; the reversing pin is arranged in the pin groove and can move; a handle extending out of the rotary arm is arranged on the reversing pin; a pin hole matched with the reversing pin is formed in the edge of the rotary test platform; the rotary test platform and the rotary arm are locked and fixed through the locking module. The horizontal angle of the rotary test platform is fast positioned through the reversing pin, the reversing pin will stay in the pin hole all the time under the action of centrifugal force, and will not move, the rotary test platform and the rotary arm are fast locked and loosened through the locking module, and accordingly reversing and locking operation can be fast and conveniently conducted on the rotary test platform and a test piece.
Description
Technical field
The present invention relates to a kind of centrifuge test specimen level commutation locking device, relate in particular to a kind of centrifuge test specimen level commutation locking device that can change the test specimen level angle simply, rapidly.
Background technology
Routine test centrifuge and precision centrifuge are the big important compositions of two in the centrifuge.The hypergravity that the routine test centrifuge is mainly used in components and parts detects, and this detection needs the higher acceleration precision usually, and all is large batch of, and operability and the ease for use of centrifuge had high requirements.Precision centrifuge then is used for inertial navigation and inertial guidance with the calibration of linear accelerometer, has stipulated the accuracy requirement of each grade precision centrifuge for the linear accelerometer setting angle in " the precision centrifuge calibrating standard of linear accelerometer ".
By anchor clamps components and parts or accelerometer are installed on the centrifuge in process of the test, the acceleration that the centrifugal force that brings by the centrifuge rotation produces realizes that the hypergravity of components and parts detects or the calibration of linear accelerometer.Modern components and parts detect or the accelerometer calibration usually needs its commutation, to realize 90 °, 180 °, 270 ° detection or calibration.
The test specimen level commutation locking device that is applied on the ground installation is ripe, but its level commutation locking device of using the centrifuge test specimen is rarely had bibliographical information.And because centrifuge special stress after the match can not be indiscriminately imitated this type of device on the ground installation on the centrifuge.
At present, be equipped with testing stand usually in process of the test, piece fixture is connected on the testing stand by the mode that is spirally connected, and when needs commutate, then anchor clamps and test specimen together must be pulled down, be screwed onto again again on the testing stand after the commutation, could realize the level commutation of test specimen.Because step that each operation will carry out that all screw disassembling, anchor clamps commutation, screw are reinstalled etc., greatly reduce and detect or calibration efficiency, carrying out large batch of components and parts as need detects or the linear acceleration meter calibrating, then need to install and remove repeatedly anchor clamps, wasted the plenty of time, simultaneously, also satisfy the accuracy requirement of the test specimen setting angle of precision centrifuge.
Summary of the invention
Purpose of the present invention provides a kind of centrifuge test specimen level commutation locking device that can change the test specimen level angle simply, rapidly with regard to being in order to address the above problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
Centrifuge test specimen level commutation locking device of the present invention comprises for the whirling test stand that described test specimen is installed, the pivoted arm of described centrifuge is provided with installing hole, described whirling test stand is installed in the described installing hole by fixture, described fixture comprises commutation pin and locking module, position near described rotation test edge of table and close described pivoted arm center on the described pivoted arm is provided with cotter way, described commutation pin places in the described cotter way and can move, described commutation pin is provided with and stretches out the outer handle of described pivoted arm, and described rotation test edge of table is provided with the pin-and-hole supporting with described commutation pin; Fix by described locking module latch between described whirling test stand and the described pivoted arm.
The commutation pin can insert in the pin-and-hole fast or extract from pin-and-hole, thereby realizes location or the manually rotation of the horizontal direction of whirling test stand.When being in positioning states, the commutation pin together rotates with the pivoted arm of centrifuge, and the centrifugal force of generation can guarantee that the commutation pin places in the pin-and-hole all the time.
Particularly, described locking module comprises the trip ring that places in the described pivoted arm installing hole, conical ring, locking nut and the tie down screw that passes described pivoted arm body, described trip ring and conical ring from top to bottom are set in the bottom of described whirling test stand successively and can move at above-below direction, the top of described trip ring is the inwall of described pivoted arm, described locking nut fixed cover be loaded on the bottom of described whirling test stand and be positioned at described conical ring below, the inner face of described trip ring is the up-small and down-big conical surface, the outside of described conical ring is the up-small and down-big conical surface, contacts by the conical surface between described trip ring and the described conical ring; Described trip ring is split ring, and its opening two ends are equipped with screw, and the inner of described tie down screw is threaded with the screw of described trip ring, and the outer end of described tie down screw is passed described centrifuge pivoted arm and placed the outside of described centrifuge pivoted arm.
During application, the outer end of tie down screw is used for manually or the machinery rotation, the tie down screw rotation drives the extended distance increase of trip ring or reduces, under the effect that contacts the conical surface of trip ring and conical ring, make conical ring realize the movement of above-below direction, conical ring promotes locking nut and moves, locking nut driven rotary testing stand moves, thereby contact friction force between whirling test stand and the pivoted arm is increased or reduce, realize the fixing of whirling test stand during increase, realize the rotation of whirling test stand when reducing.The rotation of whole process by tie down screw realize being locked of whirling test stand and unclamp, and simple, quick and control accurately.
In order to realize better screw thread transmission effect, described locking module also comprises spheric washer, the openend of described trip ring is provided with spherical groove near the screwhole position of described tie down screw one side, the sphere end of described spheric washer places in the described spherical groove, and the inner of described tie down screw is connected with the screw of described trip ring after passing the centre bore of described spheric washer.
Spacing for tie down screw is carried out, the stage casing diameter of described tie down screw is greater than its two ends diameter.Its major diameter stage casing can prevent that on the one hand the inner of tie down screw breaks away from trip ring, can prevent that on the other hand the inner precession trip ring of tie down screw is interior too many.
As preferably, described pin-and-hole is four, is uniformly distributed in the circumferential edges of described whirling test stand.Can realize the angle orientation of 0 ° of test specimen, 90 °, 180 °, 270 ° four angles like this, satisfy application demand.
Beneficial effect of the present invention is:
The present invention locatees fast by the level angle of commutation pin realization whirling test stand, under centrifugal force, the commutation pin can rest in the pin-and-hole all the time, can not jump, and realize locking fast between whirling test stand and the pivoted arm and unclamping by the locking module, thereby quickly and easily to the locking operation that commutates of whirling test stand and test specimen; By rotatablely moving of tie down screw being converted into the thrust between the conical surface, realize being locked and unclamping of whirling test stand, simply, quick and control accurately realizes the locking of whirling test stand with the rotation of tie down screw and unclamps, simplify the operating process of mounting or dismounting screw in the conventional art, can realize the rotation of whirling test stand and test specimen and the locking of whirling test stand fast.After adopting the present invention, the horizontal commutating speed of test specimen is significantly accelerated, and has obviously improved centrifuge test efficient.
Description of drawings
Fig. 1 is the overall structure schematic diagram that centrifuge test specimen level commutation locking device of the present invention is installed on pivoted arm;
Fig. 2 is the perspective view of whirling test stand of the present invention;
Fig. 3 be whirling test stand of the present invention partly cut open perspective view;
Fig. 4 is that centrifuge test specimen level commutation locking device of the present invention is at the sectional structure schematic diagram of above-below direction;
Fig. 5 is the perspective view of trip ring of the present invention;
Fig. 6 is the perspective view of tie down screw of the present invention;
Fig. 7 is the perspective view of spheric washer of the present invention;
Fig. 8 is the structural representation that tie down screw of the present invention is connected with described trip ring;
Fig. 9 is the perspective view of conical ring of the present invention;
Figure 10 is the perspective view of locking nut of the present invention;
Figure 11 is the perspective view of commutation pin of the present invention.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
As shown in Figure 1, centrifuge test specimen level commutation locking device of the present invention comprises for the whirling test stand 2 that the test specimen (not shown) is installed, the pivoted arm 1 of centrifuge is provided with the installing hole (not shown in figure 1), whirling test stand 2 is installed in this installing hole by fixture, two whirling test stands 2 have been shown among Fig. 1, and decide as required quantity and position in the practical application.As shown in Figure 2, whirling test stand 2 above be provided with for the "T"-shaped groove 4 that test specimen is installed; The hypomere of whirling test stand 2 is up big and down small taper seat 6, and this cone structure makes and contacts closelyr between whirling test stand 2 and the pivoted arm 1, can produce bigger frictional force when whirling test stand 2 presses down, thereby make it more stable.As Fig. 2, Fig. 3 and shown in Figure 4, described fixture comprises commutation pin 8, trip ring 10, conical ring 11, locking nut 12 and tie down screw 3, trip ring 10, conical ring 11 and locking nut 12 all place in the installing hole of pivoted arm 1, position near whirling test stand 2 edges and close pivoted arm 1 center on the pivoted arm 1 is provided with cotter way 7, commutation pin 8 places in the cotter way 7 and can move, commutation pin 8 is provided with and stretches out the outer handle 9 of pivoted arm 1, and the circumferential edges of whirling test stand 2 evenly is provided with four and sells 8 supporting pin-and-holes 5 with commutation; Trip ring 10 and conical ring 11 from top to bottom are set in the bottom of whirling test stand 2 successively and can move at above-below direction, the top of trip ring 10 is the inwall of pivoted arm 1, locking nut 12 fixed covers be loaded on the bottom of whirling test stand 2 and be positioned at conical ring 11 below, as shown in Figure 4 and Figure 5, the inner face of trip ring 10 is the up-small and down-big conical surface, and as Fig. 4 and shown in Figure 9, the outside of conical ring is the up-small and down-big conical surface, as shown in Figure 4, contact by the conical surface between trip ring 10 and the conical ring 11; As Fig. 5, Fig. 7 and shown in Figure 8, trip ring 10 is split ring, its opening two ends are equipped with screw (unmarked among the figure), the openend of trip ring 10 is provided with spherical groove 13 near the screwhole position of tie down screw 3 one sides, the sphere end of spheric washer 15 places in the spherical groove 13, the inner of tie down screw 3 is that thread segment 14 passes behind the centre bore of spheric washer 13 with the screw of the openend of trip ring 10 and is threaded, and the outer end of tie down screw 3 is passed centrifuge pivoted arm 1 and placed the outside of centrifuge pivoted arm 1.As Fig. 6 and shown in Figure 8, the stage casing diameter of tie down screw 3 is greater than its two ends diameter.As shown in figure 10, the top of locking nut 12 is the plane, contacts with the following of conical ring 11; As shown in figure 11, the handle 9 on the commutation pin 8 is convenient to hand propelled commutation pin 8.
In the said structure, the internal diameter of trip ring 10 and conical ring 11 is greater than the external diameter of whirling test stand 2 lower ends, and namely the inner surface of trip ring 10 and conical ring 11 is not contact or do not have pressure to contact with the outer surface of whirling test stand 2 lower ends; Whirling test stand 2 guarantees the angle precision of its pin-and-hole by Precision Machining; The conical surface of the hole wall conical surface of the hypomere conical surface of whirling test stand 2 and the installing hole of pivoted arm 1, the conical surface of trip ring 10 and conical ring 11 all need make its applying percentage reach 70% through grinding.
As Fig. 4 and shown in Figure 8, during commutation, the outer end by rotation (manually or machinery rotation all can) tie down screw 3 at first, the extended distance of trip ring 10 is increased, thereby reduce the pressure to conical ring 11, correspondingly reduce the pressure to locking nut 12, this moment, whirling test stand 2 was in releasing orientation, promote the handle 9 of commutation pin 8 to the center position of pivoted arm 1, commutation pin 8 breaks away from pin-and-hole 5, rotate 2 to 90 ° of whirling test stands with hand or instrument, the angle position of 180 ° or 270 °, the pin 8 that will commutate then oppositely promotes to insert it in the pin-and-hole 5, the outer end of reverse rotation (manually or machinery rotation all can) tie down screw 3, the extended distance of trip ring 10 is reduced, thereby increase the pressure to conical ring 11, conical ring 11 is moved down, the pressure of 11 pairs of locking nuts 12 of conical ring increases, the contact pressure of 2 pairs of pivoted arms 1 of whirling test stand is increased, whirling test stand 2 just tightly has been locked on the conical surface of installing hole hole wall of pivoted arm 1, this moment, whirling test stand 2 was in stationary state, can finish the test of test specimen, namely finish a switch operation of test specimen.When centrifuge turns round, because the centrifugal force direction is identical with the direction that commutation pin 8 inserts pin-and-hole 5, so commutation pin 8 can rest in the pin-and-hole 5 all the time, can not jump.Stable in order further to guarantee commutation pin 8, also can be in the end mounting spring of commutation pin 8 near pivoted arm 1 center.
Claims (5)
1. centrifuge test specimen level commutation locking device, comprise for the whirling test stand that described test specimen is installed, the pivoted arm of described centrifuge is provided with installing hole, described whirling test stand is installed in the described installing hole by fixture, it is characterized in that: described fixture comprises commutation pin and locking module, position near described rotation test edge of table and close described pivoted arm center on the described pivoted arm is provided with cotter way, described commutation pin places in the described cotter way and can move, described commutation pin is provided with and stretches out the outer handle of described pivoted arm, and described rotation test edge of table is provided with the pin-and-hole supporting with described commutation pin; Fix by described locking module latch between described whirling test stand and the described pivoted arm.
2. centrifuge test specimen level according to claim 1 commutation locking device, it is characterized in that: described locking module comprises the trip ring that places in the described pivoted arm installing hole, conical ring, locking nut and the tie down screw that passes described pivoted arm body, described trip ring and conical ring from top to bottom are set in the bottom of described whirling test stand successively and can move at above-below direction, the top of described trip ring is the inwall of described pivoted arm, described locking nut fixed cover be loaded on the bottom of described whirling test stand and be positioned at described conical ring below, the inner face of described trip ring is the up-small and down-big conical surface, the outside of described conical ring is the up-small and down-big conical surface, contacts by the conical surface between described trip ring and the described conical ring; Described trip ring is split ring, and its opening two ends are equipped with screw, and the inner of described tie down screw is threaded with the screw of described trip ring, and the outer end of described tie down screw is passed described centrifuge pivoted arm and placed the outside of described centrifuge pivoted arm.
3. centrifuge test specimen level according to claim 2 commutation locking device, it is characterized in that: described locking module also comprises spheric washer, the openend of described trip ring is provided with spherical groove near the screwhole position of described tie down screw one side, the sphere end of described spheric washer places in the described spherical groove, and the inner of described tie down screw is connected with the screw of described trip ring after passing the centre bore of described spheric washer.
4. according to claim 2 or 3 described centrifuge test specimen level commutation locking devices, it is characterized in that: the stage casing diameter of described tie down screw is greater than its two ends diameter.
5. according to claim 1,2 or 3 described centrifuge test specimen level commutation locking devices, it is characterized in that: described pin-and-hole is four, is uniformly distributed in the circumferential edges of described whirling test stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310284600.0A CN103331215B (en) | 2013-07-09 | 2013-07-09 | Centrifugal machine test-piece horizontal reversing locking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310284600.0A CN103331215B (en) | 2013-07-09 | 2013-07-09 | Centrifugal machine test-piece horizontal reversing locking device |
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| Publication Number | Publication Date |
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| CN103331215A true CN103331215A (en) | 2013-10-02 |
| CN103331215B CN103331215B (en) | 2015-04-08 |
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| CN201310284600.0A Active CN103331215B (en) | 2013-07-09 | 2013-07-09 | Centrifugal machine test-piece horizontal reversing locking device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105057121A (en) * | 2015-07-25 | 2015-11-18 | 朱金凤 | Revolving drum clearance adjusting device of starch centrifugal machine |
| CN105889468A (en) * | 2015-02-10 | 2016-08-24 | 申克罗泰克有限责任公司 | Drive device for centrifuge test rig |
| CN109225681A (en) * | 2018-10-30 | 2019-01-18 | 中国工程物理研究院总体工程研究所 | Adaptive load conversion method and structure under a kind of super gravity field |
| CN109569901A (en) * | 2019-01-21 | 2019-04-05 | 重庆阿泰可环境可靠性检测技术有限公司 | A kind of centrifugation machine table top of acceleration test fixes device |
| CN109702659A (en) * | 2019-02-25 | 2019-05-03 | 广东佳展智能家居有限公司 | A kind of stone material lines form grinding wheel |
| CN112196878A (en) * | 2020-12-06 | 2021-01-08 | 东营浩辰石油技术开发有限公司 | Beam-pumping unit connecting rod crossbeam round pin axle anticreep device |
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2013
- 2013-07-09 CN CN201310284600.0A patent/CN103331215B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889468A (en) * | 2015-02-10 | 2016-08-24 | 申克罗泰克有限责任公司 | Drive device for centrifuge test rig |
| CN105889468B (en) * | 2015-02-10 | 2019-11-19 | 申克罗泰克有限责任公司 | Driving device for centrifuge test platform |
| CN105057121A (en) * | 2015-07-25 | 2015-11-18 | 朱金凤 | Revolving drum clearance adjusting device of starch centrifugal machine |
| CN109225681A (en) * | 2018-10-30 | 2019-01-18 | 中国工程物理研究院总体工程研究所 | Adaptive load conversion method and structure under a kind of super gravity field |
| CN109225681B (en) * | 2018-10-30 | 2023-09-05 | 中国工程物理研究院总体工程研究所 | Self-adaptive bearing conversion method and structure under hypergravity field |
| CN109569901A (en) * | 2019-01-21 | 2019-04-05 | 重庆阿泰可环境可靠性检测技术有限公司 | A kind of centrifugation machine table top of acceleration test fixes device |
| CN109702659A (en) * | 2019-02-25 | 2019-05-03 | 广东佳展智能家居有限公司 | A kind of stone material lines form grinding wheel |
| CN112196878A (en) * | 2020-12-06 | 2021-01-08 | 东营浩辰石油技术开发有限公司 | Beam-pumping unit connecting rod crossbeam round pin axle anticreep device |
| CN112196878B (en) * | 2020-12-06 | 2021-03-16 | 东营华辰石油装备有限公司 | Beam-pumping unit connecting rod crossbeam round pin axle anticreep device |
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| CN103331215B (en) | 2015-04-08 |
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