CN203342955U - Horizontal reversing and locking device for centrifuge test pieces - Google Patents
Horizontal reversing and locking device for centrifuge test pieces Download PDFInfo
- Publication number
- CN203342955U CN203342955U CN 201320403822 CN201320403822U CN203342955U CN 203342955 U CN203342955 U CN 203342955U CN 201320403822 CN201320403822 CN 201320403822 CN 201320403822 U CN201320403822 U CN 201320403822U CN 203342955 U CN203342955 U CN 203342955U
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- centrifuge
- pivoted arm
- ring
- reversing
- locking
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Abstract
The utility model discloses a horizontal reversing and locking device for centrifuge test pieces. The horizontal reversing and locking device comprises rotary test stands used for mounting the test pieces. Mounting holes are formed in a rotating arm of a centrifuge, each rotary test stand is mounted in the corresponding mounting hole through a fixing device which comprises reversing pins and a locking module, pin grooves are formed in the positions, close the edges of the rotary test stands and the center of the rotating arm, of the rotating arm, the reversing pins are disposed in the pin grooves and capable of moving, a handle extending out of the rotating arm is arranged on each reversing pin, and pin holes matched with the reversing pins are formed in the edge of each rotary test stand. The rotary test stands and the rotating arm are fixed by locking of the locking modules. Rapid positioning of horizontal angles of the rotary test stands is realized through the reversing pins, the reversing pins always stay in the pin holes without leaping under the action of centrifugal force, the rotary test stands and the rotating arm are quickly locked and loosened through the locking modules, and thus reversing and locking operation is performed on the rotary test stands and the test pieces conveniently and rapidly.
Description
Technical field
The utility model relates to a kind of centrifuge test specimen level commutation locking device, relates in particular to a kind of centrifuge test specimen level commutation locking device that can change simply, rapidly the test specimen level angle.
Background technology
Routine test centrifuge and precision centrifuge are the large important compositions of two in centrifuge.The hypergravity that the routine test centrifuge is mainly used in components and parts detects, and this detection needs higher acceleration precision usually, and is all large batch of, and operability and the ease for use of centrifuge had high requirements.Precision centrifuge, for inertial navigation and the calibration of linear accelerometer for inertial guidance, has been 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 fixture, components and parts or accelerometer are arranged on centrifuge in process of the test, rotate the acceleration of the centrifugal force generation brought by centrifuge and realize that the hypergravity of components and parts detects or the calibration of linear accelerometer.Modern components and parts detect or accelerometer calibration usually needs its commutation, to realize detection or the calibration of 90 °, 180 °, 270 °.
The test specimen level commutation locking device be applied on ground installation is more ripe, but the level commutation locking device that it is used to the centrifuge test specimen rarely has bibliographical information.And, due to centrifuge special stress after the match, the such device on ground installation can not be indiscriminately imitated on centrifuge.
At present, usually be equipped with testing stand in process of the test, piece fixture is connected on testing stand by the mode be spirally connected, and when needs commutate, fixture and test specimen together must be pulled down, again be screwed onto again on testing stand after commutation, could realize the level commutation of test specimen.Due to each operation step such as all will carry out that screw disassembling, fixture commutation, screw are reinstalled, greatly reduce and detect or calibration efficiency, as need carry out large batch of components and parts detection or linear acceleration meter calibrating, need repeatedly to install and remove fixture, wasted the plenty of time, simultaneously, also meet the accuracy requirement of the test specimen setting angle of precision centrifuge.
The utility model content
The purpose of this utility model provides a kind of centrifuge test specimen level commutation locking device that can change simply, rapidly the test specimen level angle with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
Centrifuge test specimen level commutation locking device described in the utility model comprises for the whirling test stand of described test specimen is installed, the pivoted arm of described centrifuge is provided with installing hole, described whirling test stand is installed in described installing hole by fixture, described fixture comprises reversing pin and locking module, position near described rotation test edge of table close described pivoted arm center on described pivoted arm is provided with cotter way, described reversing pin is placed in described cotter way and can moves, described reversing pin is provided with and stretches out the outer handle of described pivoted arm, described rotation test edge of table is provided with the pin-and-hole supporting with described reversing pin, between described whirling test stand and described pivoted arm, by described locking module latch, fix.
Reversing pin can the quick insertion pin-and-hole in or from pin-and-hole, extract, thereby realize location or the manual rotation of the horizontal direction of whirling test stand.In positioning states the time, reversing pin together rotates with the pivoted arm of centrifuge, and the centrifugal force of generation can guarantee that reversing pin is placed in pin-and-hole all the time.
Particularly, described locking module comprises the trip ring be placed in described pivoted arm installing hole, conical ring, locking nut and through the tie down screw of described pivoted arm body, described trip ring and conical ring from top to bottom are set in successively the bottom of described whirling test stand 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, between described trip ring and described conical ring, by the conical surface, contact, 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 described centrifuge pivoted arm juxtaposition is passed in the outside of described centrifuge pivoted arm in the outer end of described tie down screw.
During application, the outer end of tie down screw is for manual or machinery rotation, the extended distance that tie down screw rotarily drives trip ring increases 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 make the contact friction force between whirling test stand and pivoted arm increase or reduce, realize the fixing of whirling test stand during increase, realize the rotation of whirling test stand while reducing.Whole process realizes being locked of whirling test stand and unclamps by the rotation of tie down screw, 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 is placed in described spherical groove, and the inner of described tie down screw is connected with the screw of described trip ring through after 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 the inner of tie down screw breaks away from trip ring on the one hand, 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 like this angle orientation of 0 ° of test specimen, 90 °, 180 °, 270 ° four angles, meet application demand.
The beneficial effects of the utility model are:
The utility model realizes that by reversing pin the level angle of whirling test stand locates fast, under centrifugal force, reversing pin can rest in pin-and-hole all the time, can not jump, and realize between whirling test stand and pivoted arm quick locking and unclamp by the locking module, thereby quickly and easily to the locking operation that commutated of whirling test stand and test specimen; By rotatablely moving of tie down screw is converted into to the thrust between the conical surface, realize being locked and unclamping of whirling test stand, simply, quick and control and accurately the rotation of tie down screw is realized to the locking of whirling test stand and unclamps, simplify the operating process of mounting or dismounting screw in the conventional art, can realize fast the rotation of whirling test stand and test specimen and the locking of whirling test stand.After adopting the utility model, the horizontal commutating speed of test specimen is significantly accelerated, and has obviously improved centrifuge test efficiency.
The accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram that centrifuge test specimen level commutation locking device described in the utility model is installed on pivoted arm;
Fig. 2 is the perspective view of whirling test stand described in the utility model;
Fig. 3 be whirling test stand described in the utility model partly cut open perspective view;
Fig. 4 is the sectional structure schematic diagram of centrifuge test specimen level commutation locking device described in the utility model at above-below direction;
Fig. 5 is the perspective view of trip ring described in the utility model;
Fig. 6 is the perspective view of tie down screw described in the utility model;
Fig. 7 is the perspective view of spheric washer described in the utility model;
Fig. 8 is the structural representation that tie down screw described in the utility model is connected with described trip ring;
Fig. 9 is the perspective view of conical ring described in the utility model;
Figure 10 is the perspective view of locking nut described in the utility model;
Figure 11 is the perspective view of reversing pin described in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, centrifuge test specimen level commutation locking device described in the utility model comprises the whirling test stand 2 for 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 in Fig. 1, and determine as required quantity and position in practical application.As shown in Figure 2, whirling test stand 2 above be provided with for the "T"-shaped groove 4 of 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 to contact closelyr between whirling test stand 2 and pivoted arm 1, can produce larger frictional force when whirling test stand 2 presses down, thereby make it more stable.As shown in Figure 2, Figure 3 and Figure 4, described fixture comprises reversing 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 are placed in the installing hole of pivoted arm 1, position near whirling test stand 2 edges close pivoted arm 1 center on pivoted arm 1 is provided with cotter way 7, reversing pin 8 is placed in cotter way 7 and can moves, reversing pin 8 is provided with and stretches out the outer handle 9 of pivoted arm 1, the circumferential edges of whirling test stand 2 evenly be provided with four with the supporting pin-and-hole 5 of reversing pin 8; Trip ring 10 and conical ring 11 from top to bottom are set in successively the bottom of whirling test stand 2 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 shown in Fig. 4 and Fig. 9, the outside of conical ring is the up-small and down-big conical surface, as shown in Figure 4, between trip ring 10 and conical ring 11, by the conical surface, contact; As shown in Fig. 5, Fig. 7 and Fig. 8, trip ring 10 is split ring, its opening two ends are equipped with screw (unmarked in 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 is placed in spherical groove 13, the inner of tie down screw 3 is thread segment 14 through being threaded with the screw of the openend of trip ring 10 after the centre bore of spheric washer 13, and the outer end of tie down screw 3 is through centrifuge pivoted arm 1 and be placed in the outside of centrifugal basket arm 1.As shown in Figure 6 and 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 plane, with the following of conical ring 11, contacts; As shown in figure 11, the handle 9 on reversing pin 8 is convenient to hand propelled reversing pin 8.
In 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 the inner surface of trip ring 10 and conical ring 11 is not contact or contact without pressure 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 needs through grinding, and makes its laminating percentage reach 70%.
As shown in Figure 4 and Figure 8, during commutation, at first by the outer end of rotation (manually or machinery rotation all can) tie down screw 3, 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, now whirling test stand 2 is in releasing orientation, promote the handle 9 of reversing pin 8 to the center position of pivoted arm 1, reversing 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 °, then reversing pin 8 is oppositely promoted to insert it in 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 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, now whirling test stand 2 is in stationary state, can complete the test of test specimen, complete a switch operation of test specimen.When centrifuge turns round, because the centrifugal force direction is identical with the direction that reversing pin 8 inserts pin-and-hole 5, so reversing pin 8 can rest in pin-and-hole 5 all the time, can not jump.Stable in order further to guarantee reversing pin 8, also can be in an end mounting spring at reversing pin 8 close pivoted arm 1 centers.
Claims (5)
1. centrifuge test specimen level commutation locking device, comprise for the whirling test stand of described test specimen is installed, the pivoted arm of described centrifuge is provided with installing hole, described whirling test stand is installed in described installing hole by fixture, it is characterized in that: described fixture comprises reversing pin and locking module, position near described rotation test edge of table close described pivoted arm center on described pivoted arm is provided with cotter way, described reversing pin is placed in described cotter way and can moves, described reversing pin is provided with and stretches out the outer handle of described pivoted arm, described rotation test edge of table is provided with the pin-and-hole supporting with described reversing pin, between described whirling test stand and described pivoted arm, by described locking module latch, fix.
2. centrifuge test specimen level according to claim 1 commutation locking device, it is characterized in that: described locking module comprises the trip ring be placed in described pivoted arm installing hole, conical ring, locking nut and through the tie down screw of described pivoted arm body, described trip ring and conical ring from top to bottom are set in successively the bottom of described whirling test stand 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, between described trip ring and described conical ring, by the conical surface, contact, 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 described centrifuge pivoted arm juxtaposition is passed in the outside of described centrifuge pivoted arm in the outer end of described tie down screw.
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 is placed in described spherical groove, and the inner of described tie down screw is connected with the screw of described trip ring through after the centre bore of described spheric washer.
4. according to the described centrifuge test specimen of claim 2 or 3 level commutation locking device, 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 |
|---|---|---|---|
| CN 201320403822 CN203342955U (en) | 2013-07-09 | 2013-07-09 | Horizontal reversing and locking device for centrifuge test pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320403822 CN203342955U (en) | 2013-07-09 | 2013-07-09 | Horizontal reversing and locking device for centrifuge test pieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203342955U true CN203342955U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320403822 Withdrawn - After Issue CN203342955U (en) | 2013-07-09 | 2013-07-09 | Horizontal reversing and locking device for centrifuge test pieces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203342955U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736231A (en) * | 2016-12-05 | 2017-05-31 | 上海法信机电设备制造有限公司 | For the cutter head reversing arrangement of artificial welding gun sharpening machine |
-
2013
- 2013-07-09 CN CN 201320403822 patent/CN203342955U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736231A (en) * | 2016-12-05 | 2017-05-31 | 上海法信机电设备制造有限公司 | For the cutter head reversing arrangement of artificial welding gun sharpening machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131218 Effective date of abandoning: 20150408 |
|
| RGAV | Abandon patent right to avoid regrant |