CN203465106U - Torsion experiment testing apparatus in thermal vacuum environment - Google Patents
Torsion experiment testing apparatus in thermal vacuum environment Download PDFInfo
- Publication number
- CN203465106U CN203465106U CN201320583154.9U CN201320583154U CN203465106U CN 203465106 U CN203465106 U CN 203465106U CN 201320583154 U CN201320583154 U CN 201320583154U CN 203465106 U CN203465106 U CN 203465106U
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- shaft
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- output shaft
- thermovacuum
- case
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Abstract
The utility model relates to a torsion experiment testing apparatus in a thermal vacuum environment. The torsion experiment testing apparatus consists of an adjusting stand, an observation group, a driving lever device, a connecting spline, and a thermal vacuum box. The adjusting stand and the driving lever device are installed in the thermal vacuum box. A to-be-tested element is installed at the adjusting stand; a to-be-tested element output shaft is connected to a magnetofluid sealed transmission shaft by the connecting spline; the magnetofluid sealed transmission shaft passes through the thermal vacuum box and extends out of the box; and the connecting spline is connected to the driving lever device. And the observation group is arranged at the wall of the thermal vacuum box. According to the apparatus, the observation group is used for observing and recording the position of the to-be-tested element output shaft; during the temperature changing process of the thermal vacuum box, the driving lever device is controlled to release connection of the to-be-tested element output shaft with the magnetofluid sealed transmission shaft; and after the temperature is stable, the spatial position of the to-be-tested element in the thermal vacuum box is adjusted by the adjusting stand, and the to-be-tested element output shaft is reconnected with the magnetofluid sealed transmission shaft so as to carry out subsequent testing. Therefore, the influence on the testing by the deformation of the to-be-tested element during the thermal vacuum testing can be effectively eliminated. Moreover, the apparatus can be operated simply and has the high testing precision.
Description
Technical field
The utility model relates to torsion test proving installation under hot vacuum environment
Background technology
Space flight is applied to the singularity of outer space environment with equipment because of it, so there is high performance requirement.For meeting design needs, need, at the hot vacuum environment of the ground simulation outer space, under vacuum and thermal cycle conditions, check performance and the function of to be measured.As in measured piece being driven to or load to simulate the thermal vacuum test of the suffered driving of tested mechanism and load, not only need rational gearing, but also want the ability of the information such as the torque of tool real-time high-precision measuring equipment, corner and rotating speed.
Under hot vacuum environment, the reliability decrease of sensor, power-equipment, shorten serviceable life, in test process, be difficult to control, therefore to be measured is placed in the vacuum tank of simulating hot vacuum environment, by packoff, transmit torque to the outside of vacuum tank, drive load and information measurement are carried out outward at thermovacuum tank.In thermal vacuum test, the normal magnetic fluid seal driving device that adopts, as sealing, is connected to be measured output shaft to be drawn out to extraneous normal temperature environment with magnetic fluid seal driving axle.
To be measured needs carry out thermal vacuum test under different temperatures, after having tested under a certain steady temperature, then heat up or lower the temperature, and after it is steady, test next time.In test process, thermovacuum case is all the time in sealing state, therefore very large to the adjusting difficulty of to be measured in case.To be measured and base all belong to non-symmetrical part, and therefore, under hot vacuum environment, to be measured can produce irregular deformation, and the shaft core position of its output shaft is offset, thereby affect itself and being connected of magnetic fluid seal driving axle.Moreover, when measuring to be measured no-load characteristic, need to carry out torque loading to be measured, again the charger outside to be measured output shaft and tank is thrown off it is freely discharged, if throw off being connected of magnetic fluid seal driving axle and charger outward at tank, be convenient to operation, but can introduce the impact of device for sealing magnetic fluid rotation friction, if directly throw off being connected of to be measured output shaft and magnetic fluid seal driving axle in tank, be accurately still the heated impact of vacuum tank of test result is not easy to operate.
Summary of the invention
In order to solve to be measured distortion in thermovacuum torsion test, to be measured no-load characteristic measurement under test generation impact, hot vacuum environment is difficult to the problems such as operation, the utility model provides a kind of hot vacuum environment torsion test proving installation to be measured deformation effect, that be convenient to operation that is not subject to.
The technical scheme that the utility model solves its technical matters employing is:
A hot vacuum environment torsion test proving installation, comprises and regulates support, observation group, deflector rod device, connection spline, thermovacuum case.Described adjusting support is arranged in thermovacuum case, on described adjusting support, install to be measured, described to be measured connects to be measured output shaft, and described to be measured output shaft is by connecting spline joint magnetic fluid seal driving axle, and described magnetic fluid seal driving axle is drawn out to outside case through thermovacuum case; Described connection spline joint deflector rod device, described deflector rod device is arranged in thermovacuum case; The tank wall of described thermovacuum case is provided with observation group.
Described adjusting support comprises Workpiece fixing plate, device fixed head, main drive shaft, driven shaft, driving gear, follower gear, clutch coupling etc.Between described Workpiece fixing plate and device fixed head, by driven shaft, support, described driven shaft has three at least, and two floating junctions are installed between described driven shaft and Workpiece fixing plate, and described driven shaft is connected by rolling bearing between propping up with device fixed head; Described follower gear is sleeved on driven shaft, and described a plurality of follower gears stagger position in the axial direction.
Described main drive shaft is arranged on the center of device fixed head by bearing, described driving gear can be sleeved on main drive shaft in axial sliding, and described main drive shaft rotation can drive driving gear rotation, and described driving gear can mesh with follower gear.Described gear adjustable plate one end be sleeved on main drive shaft and with main drive shaft between do not contact, described gear adjustable plate supports driving gear in the axial direction, the described gear adjustable plate other end is sleeved on lifting double-screw bolt by threaded hole, and described lifting double-screw bolt is arranged on device fixed head by bearing.
Described clutch pack is containing driving disc spacing pressing and clutch plate, and described clutch plate is fixed on the below of Workpiece fixing plate, and described driving disc spacing pressing is fixed on driving gear, and after the driving disc spacing pressing and clutch plate engagement of clutch coupling, rotary main shaft can drive Workpiece fixing plate rotation.
Described main shaft and lifting double-screw bolt lower end are connected with two flexible axles that are drawn out to outside thermovacuum case respectively by device fixed head.
Described device fixed head lower end is contained on mobile screw and shifting axle by Mobile base and slide block set, described mobile screw installation parallel with shifting axle and fixing with thermovacuum case, and described mobile screw one end is passed thermovacuum case by packoff and is drawn out to outside case.
Described to be measured output shaft end and magnetic fluid seal driving axle top are set with splined shaft, and described spline housing is sleeved on splined shaft.
Described deflector rod device comprises tooth bar, gear, the rotating shaft of plectrum, two ends band sliding axle.The tooth bar of described two ends band sliding axle is fixed on driving lever installing plate by sliding axle mount pad, described gear centre and rotating shaft are fixed and are meshed with tooth bar, the logical sealing shroud of described rotating shaft is drawn out to outside thermovacuum case, described plectrum has two and be vertically fixed on tooth bar, described plectrum is contained in respectively the two ends of spline housing through to be measured output shaft and magnetic fluid seal driving axle sleeve, described plectrum moves and can promote spline housing and do not affect splined shaft with tooth bar.
Described observation group comprises high resolution camera and view window; Described observation group is arranged on thermovacuum case top and side and relative with to be measured output shaft lateral location.
Described thermovacuum case also comprises case lid and casing, and described casing seals by case lid, and described magnetic fluid seal driving axle is through case lid.
Method of testing of the present utility model is:
1,, under normal temperature non-vacuum environment, to be measured clamping, regulating on the Workpiece fixing plate of support, passed through to spline joint by be measured output shaft and magnetic fluid seal driving axle.
2, adjust the high resolution camera of thermovacuum box top and side, shoot clearly the location drawing picture of workpiece output shaft as reference position image, by reference position image, obtain the central axis of workpiece output shaft.
3, the rotating shaft of rotating lever device, the gear driven tooth bar in rotating shaft moves, and by the plectrum on tooth bar, spline housing is allocated to transmission shaft one side, throws off and being connected between to be measured output shaft and transmission shaft makes it in free state.
4, sealing thermovacuum case is tested when it reaches the temperature required and vacuum environment of test again.
5, after temperature is steady, by high resolution camera, take the current location image of workpiece output shaft, contrast with reference position image, observe the distortion side-play amount of to be measured output shaft.
6, rotary flexible shaft can drive the rotation of the interior lifting double-screw bolt of thermovacuum case and main shaft, by lifting double-screw bolt, select to need meshed gears or clutch coupling, the lifting of rotary main shaft adjustable work-piece fixed head or rotation again, to adjust on Workpiece fixing plate the locus of to be measured.
7, by the contrast of current location image and reference position image, adjust the locus of to be measured, until the central axes in the central axis of workpiece output shaft and reference position image in current location image.
8, the rotating shaft of rotating lever device, is allocated to be measured output shaft one side by spline housing, reconnects to be measured output shaft and magnet fluid sealing axle, carries out follow-on test.
9, repetitive operation step 2, to 8, can be carried out to be measured performance test under different temperatures.
Mentality of designing of the present utility model and advantage show:
Be subject to the impact of hot vacuum environment, to be measured can produce irregular deformation, thereby has influence on being connected of the outer proving installation of to be measured output shaft and tank.
The position that the utility model adopts high resolution camera to observe and record to be measured output shaft, adopts deflector rod device to control de-the closing between to be measured output shaft and magnetic fluid seal driving axle, by regulating support to adjust to be measured the locus in thermovacuum tank.Therefore, under normal temperature environment, the location drawing that utilizes high resolution camera to shoot workpiece output shaft looks like to record the initial position of to be measured output shaft, then by deflector rod device, throw off itself and being connected of magnetic fluid seal driving axle, allow to be measured Free Transform under hot vacuum environment, after temperature is steady, by high resolution camera, coordinate and adjust support, to be measured output shaft overlapped again with the axis of magnetic fluid seal driving axle, by deflector rod device, connect to be measured output shaft and magnetic fluid seal driving axle again, carry out follow-up test.After to be measured loading completed, also can throw off being connected of to be measured output shaft and magnetic fluid seal driving axle by deflector rod device, conveniently carry out the test of no-load characteristic.
Deflector rod device has adopted the design concept of rack-and-pinion, the rotating shaft that rotation is drawn out to outside thermovacuum tank can be moved by the gear driven tooth bar in rotating shaft, plectrum is vertically mounted on tooth bar, therefore, and the controlled movement that heats plectrum in vacuum tank of the rotation of thermovacuum tank outer shaft.On to be measured output shaft and magnetic fluid seal driving axle, be set with splined shaft, spline housing is sleeved on splined shaft, plectrum is positioned at the both sides of spline housing, plectrum moves and drives spline housing toward magnetic fluid seal driving axle one side shifting, can throw off being connected between spline housing and to be measured output shaft upper spline axle, thereby to be measured output shaft freely discharged; In like manner, rotating shaft drives plectrum to move and drives spline housing toward to be measured output shaft one side shifting, the splined shaft on spline housing and to be measured output shaft can be meshed again.Deflector rod device can realize between to be measured output shaft and magnetic fluid seal driving axle to be thrown off and is connected.
Regulate support can realize five degree of freedom.To be measured is fixed on Workpiece fixing plate, and setting to be measured output axial direction is x direction, and the direction of vertical Workpiece fixing plate is y direction.At least three driven shafts are passed through as support in Workpiece fixing plate below, two floating junctions and driven shaft upper end are installed between driven shaft and Workpiece fixing plate to be spirally connected with two floating junctions, therefore rotate the lifting that driven shaft can be realized two floating junctions, three above driven shafts cooperatively interact, the y that just can realize Workpiece fixing plate to movement and x, z to rotation.
Two floating junctions have a plurality of degree of freedom, therefore when adjusting single driven shaft, can not limited by other driven shafts.Follower gear be sleeved on driven shaft and in the axial direction position stagger, rotary flexible shaft can drive the rotation of the interior lifting double-screw bolt of thermovacuum case and main shaft, by lifting double-screw bolt, control moving axially of driving gear, select to need the follower gear of engagement, rotary main shaft just can drive driven shaft rotation.
The driving disc spacing pressing of clutch coupling and clutch plate are separately fixed at the top of driving gear and the below of Workpiece fixing plate, control driving disc spacing pressing and clutch plate engagement that driving gear rising makes clutch coupling, then the y that rotary main shaft just can be realized Workpiece fixing plate are to rotation.Device fixed head lower end is contained in along z on the mobile screw of installing and shifting axle by Mobile base and slide block set, and therefore screw rod in rotary moving, can realize the z of adjustment support to movement.To be measured does not affect being connected of splined shaft and spline housing around the axial movement of x and rotation, so can be not considered.To be measured the deflection under hot vacuum environment is not very large, regulates support can meet the adjusting of its five degree of freedom.
Output shaft in thermovacuum case cannot carry out the demarcation of center line, therefore must adopt aid.High resolution camera can obtain the location drawing picture of workpiece output shaft, under normal temperature environment, take reference position image, after under hot vacuum environment, workpiece deformation completes, by newly-generated current location image and reference position image, contrast, slowly adjust the locus of to be measured, until the central axis of workpiece output shaft and the central axes in benchmark image in current location image.Simple to operate, degree of accuracy is high.
By cooperatively interacting of two high resolution cameras in thermovacuum case top and side, the variation of four degree of freedom directions of to be measured output shaft of Observable, meets and regulates requirement.
Accompanying drawing explanation
Fig. 1 is torsion test proving installation schematic diagram under hot vacuum environment
Fig. 2 is that Fig. 1 is left view
Fig. 3 is the vertical view of Fig. 1
Embodiment
By reference to the accompanying drawings 1 to 3, torsion test proving installation under a kind of hot vacuum environment, comprises and regulates support, observation group, deflector rod device, connection spline, thermovacuum case.Described thermovacuum case also comprises case lid 4 and casing 1, and described casing 1 seals by case lid 4, and described magnetic fluid seal driving axle 6 is through case lid 4.Described adjusting support is arranged in thermovacuum case, to be measured output shaft of described connection spline joint 9 and magnetic fluid seal driving axle 6, described deflector rod device is fixed in thermovacuum case and plectrum acts on connection spline, and described observation group 3 is arranged on thermovacuum case top and side and relative with to be measured output shaft 9 lateral location.
Described observation group comprises high resolution camera 3 and view window 2.
Described adjusting support comprises Workpiece fixing plate 23, device fixed head 15, main drive shaft 16, driven shaft 22, driving gear 21, follower gear 14, clutch coupling etc.Between described Workpiece fixing plate 23 and device fixed head 15, by four driven shafts 22, support, 23 of described driven shaft 22 and Workpiece fixing plates are installed two floating junctions 12, and described driven shaft 22 is connected by rolling bearing with installing between 15 of fixed heads; Described follower gear 14 is sleeved on driven shaft 22, and described a plurality of follower gears 14 stagger position in the axial direction.
Described main drive shaft 16 is arranged on device fixed head 15 center by bearing, and described driving gear 21 can be sleeved on main drive shaft 16 in axial sliding, and described main drive shaft 16 rotations can drive driving gear 21 rotations, and described driving gear 21 can mesh with follower gear 14.Described gear adjustable plate 13 one end be sleeved on main drive shaft 16 and with main drive shaft 16 between do not contact, described gear adjustable plate 13 supports driving gear 21 in the axial direction, described gear adjustable plate 13 other ends are sleeved on lifting double-screw bolt 29 by threaded hole, and described lifting double-screw bolt 29 axises hold and are arranged on device fixed head 15.
Described clutch pack is containing driving disc spacing pressing 7 and clutch plate 24, described clutch plate 24 is fixed on the below of Workpiece fixing plate 23, described driving disc spacing pressing 7 is fixed on driving gear 21, and after the driving disc spacing pressing 7 and clutch plate 24 engagements of clutch coupling, rotary main shaft 16 can drive Workpiece fixing plate 23 rotations.
Described main shaft 16 and lifting double-screw bolt 29 lower ends are connected with two flexible axles 18,32 that are drawn out to outside thermovacuum case respectively by device fixed head 15.
Described device fixed head 15 lower ends are sleeved on mobile screw 20 and shifting axle 17 by Mobile base 19, described mobile screw 20 and the parallel installation of shifting axle 17 and fixing with thermovacuum box body 1, described mobile screw 20 one end are drawn out to outside case through thermovacuum box body 1 by packoff 25.
Described to be measured output shaft 9 ends and magnetic fluid seal driving axle 6 tops are set with splined shaft 33, and described spline housing 11 is sleeved on splined shaft 33.
Described deflector rod device comprises plectrum 10, the tooth bar 30 of two ends band sliding axle, gear 28, rotating shaft 26.The tooth bar 30 of described two ends band sliding axle is fixed on driving lever installing plate 27 by sliding axle mount pad 31, described gear 28 centers and rotating shaft 26 are fixed and are meshed with tooth bar 30, the logical sealing shroud 25 of described rotating shaft 26 is drawn out to outside thermovacuum case, described plectrum 10 has two and be vertically fixed on tooth bar 30, described plectrum 10 is sleeved on respectively the two ends of spline housing 11 through to be measured output shaft 9 and magnetic fluid seal driving axle 6, described plectrum 10 moves and can promote spline housing 11 and do not affect splined shaft 33 with tooth bar 30.
Claims (1)
1. a hot vacuum environment torsion test proving installation, is characterized in that: comprise and regulate support, observation group, deflector rod device, connection spline, thermovacuum case; Described adjusting support is arranged in thermovacuum case, on described adjusting support, installs to be measured, and described to be measured connects to be measured output shaft, and described to be measured output shaft is by connecting spline joint transmission shaft, and described transmission shaft is drawn out to outside case through thermovacuum case; Described connection spline joint deflector rod device, described deflector rod device is arranged in thermovacuum case; The tank wall of described thermovacuum case is provided with observation group;
Described adjusting support comprises Workpiece fixing plate, device fixed head, main drive shaft, driven shaft, driving gear, follower gear, clutch coupling etc.; Between described Workpiece fixing plate and device fixed head, by driven shaft, support, described driven shaft has three at least, and two floating junctions are installed between described driven shaft and Workpiece fixing plate, and described driven shaft is connected by rolling bearing between propping up with device fixed head; Described follower gear is sleeved on driven shaft, and described a plurality of follower gears stagger position in the axial direction;
Described main drive shaft is arranged on the center of device fixed head by bearing, described driving gear can be sleeved on main drive shaft in axial sliding, and described main drive shaft rotation can drive driving gear rotation, and described driving gear can mesh with follower gear; Described gear adjustable plate one end be sleeved on main drive shaft and with main drive shaft between do not contact, described gear adjustable plate supports driving gear in the axial direction, the described gear adjustable plate other end is sleeved on lifting double-screw bolt by threaded hole, and described lifting double-screw bolt axis holds and is arranged on device fixed head;
Described clutch pack is containing driving disc spacing pressing and clutch plate, and described clutch plate is fixed on the below of Workpiece fixing plate, and described driving disc spacing pressing is fixed on driving gear, and after the driving disc spacing pressing and clutch plate engagement of clutch coupling, rotary main shaft can drive Workpiece fixing plate rotation;
Described main shaft and lifting double-screw bolt lower end are connected with two flexible axles that are drawn out to outside thermovacuum case respectively by device fixed head;
Described device fixed head lower end is contained on mobile screw and shifting axle by Mobile base and slide block set, described mobile screw installation parallel with shifting axle and fixing with thermovacuum case, and described mobile screw one end is passed thermovacuum case by packoff and is drawn out to outside case;
Described to be measured output shaft end and magnetic fluid seal driving axle top are set with splined shaft, and described spline housing is sleeved on splined shaft;
Described deflector rod device comprises tooth bar, gear, the rotating shaft of plectrum, two ends band sliding axle; The tooth bar of described two ends band sliding axle is fixed on driving lever installing plate by sliding axle mount pad, described gear centre and rotating shaft are fixed and are meshed with tooth bar, the logical sealing shroud of described rotating shaft is drawn out to outside thermovacuum case, described plectrum has two and be vertically fixed on tooth bar, described plectrum is contained in respectively the two ends of spline housing through to be measured output shaft and magnetic fluid seal driving axle sleeve, described plectrum moves and can promote spline housing and do not affect splined shaft with tooth bar;
Described observation group comprises high resolution camera and view window; Described observation group is arranged on thermovacuum case top and side and relative with to be measured output shaft lateral location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320583154.9U CN203465106U (en) | 2013-09-18 | 2013-09-18 | Torsion experiment testing apparatus in thermal vacuum environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320583154.9U CN203465106U (en) | 2013-09-18 | 2013-09-18 | Torsion experiment testing apparatus in thermal vacuum environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203465106U true CN203465106U (en) | 2014-03-05 |
Family
ID=50177459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320583154.9U Withdrawn - After Issue CN203465106U (en) | 2013-09-18 | 2013-09-18 | Torsion experiment testing apparatus in thermal vacuum environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203465106U (en) |
-
2013
- 2013-09-18 CN CN201320583154.9U patent/CN203465106U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20151028 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |