CN203561541U - Torque testing device in thermal vacuum environment - Google Patents
Torque testing device in thermal vacuum environment Download PDFInfo
- Publication number
- CN203561541U CN203561541U CN201320584188.XU CN201320584188U CN203561541U CN 203561541 U CN203561541 U CN 203561541U CN 201320584188 U CN201320584188 U CN 201320584188U CN 203561541 U CN203561541 U CN 203561541U
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- thermovacuum
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- magnetic fluid
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Abstract
The utility model discloses a torque testing device in a thermal vacuum environment. The torque testing device comprises an adjusting machine base, an observation group, a rod shifting device, a connecting spline and a thermal vacuum tank, wherein the adjusting machine base and the rod shifting device are arranged inside the thermal vacuum tank; a to-be-tested component is arranged on the adjusting machine base; the output shaft of the to-be-tested component is led out of the thermal vacuum tank after being connected with a magnetic fluid sealing transmission shaft by virtue of the connecting spline; the connecting spline is connected with the rod shifting device; the observation group is arranged on the wall of the thermal vacuum tank. According to the torque testing device, the position of the output shaft of the to-be-tested component is observed and recorded by virtue of an observation lens, the association and disassociation of the output shaft of the to-be-tested component and the magnetic fluid sealing transmission shaft are controlled by virtue of the rod shifting device, the spatial position of the to-be-tested component inside the thermal vacuum tank is adjusted by virtue of the adjusting machine base, the influence of deformation of the to-be-tested component on the testing in the thermal vacuum experiment is effectively avoided, and the torque testing device is applicable to torque testing and the like with high precision in the thermal vacuum environment, and is simple to operate and high in precision.
Description
Technical field
The utility model relates to the torque testing device under thermal vacuum test.
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 thermal vacuum 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 close tolerance seal proving installation under hot vacuum environment 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 torque testing device under hot vacuum environment, 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 heavy platform, support platform, lift adjustment screw rod, the Level tune screw rod adjusted.The described heavy platform of adjusting is placed in support platform, and three lift adjustment screw rods are passed through as support in described support platform lower surface.Described lift adjustment screw rod upper end is fixed by the bearing seat of self-aligning bearing and support platform lower surface, and the lower end of described lift adjustment screw rod is drawn out to outside case through the threaded hole on thermovacuum case.
The described heavy platform side of adjusting is installed two Level tune screw rods, described Level tune screw rod and to be measured output shaft are spatially perpendicular, described Level tune screw rod one end is drawn out to outside case through the threaded hole on vacuum tank, the other end is connected with the heavy platform of adjusting by the oscillating bearing of two series connection, described oscillating bearing is sleeved on the guiding axle bed of heavy adjustment platform side, and described two oscillating bearings vertically connect by adapter sleeve axle center.
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 passes respectively the two ends that to be measured output shaft and magnetic fluid seal driving axle sleeve are contained in spline housing, described plectrum moves and can promote spline housing and not affect splined shaft with tooth bar, described installing plate one end is fixed on thermovacuum case, and the other end supports by stiffening plate.
Described observation group is arranged on thermovacuum case top and side and relative with to be measured output shaft lateral location; Described observation group comprises observation camera lens and view window; Described observation camera lens is arranged on view window, and described observation camera lens comprises eyepiece, graticule, object lens, and described graticule is arranged between eyepiece and object lens, has two parallel scale marks on described graticule.
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 the heavy type of support to adjust on platform, passed through to spline joint by be measured output shaft and magnetic fluid seal driving axle.
2, the observation camera lens of adjusting thermovacuum box top and side, makes it possible to observe clearly the output shaft of to be measured, then regulates respectively observation camera lens, two parallel scale marks in graticule is overlapped just, as the benchmark of subsequent adjustment with output shaft sideline.
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 the distortion side-play amount of to be measured output shaft of observation camera lens observation.
6,, at thermovacuum tank inner rotary lift adjustment screw rod or Level tune screw rod, control heavy movement and the rotation of adjusting platform, to adjust the locus of to be measured.
7, the invariant position that keeps scale mark in graticule, coordinates and regulates support move or rotate to be measured, until two scale marks are equal to the distance between two sidelines of output shaft, now can think the dead in line of to be measured output shaft and magnetic fluid seal driving axle
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 observation camera lens 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, observe the initial position of to be measured output shaft of shot record, 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 observation camera lens, 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 heavy adjustment on platform, and setting to be measured output axial direction is x axle, and the vertical heavy direction of adjusting platform is that vertical direction is y axle.In the lifting of thermovacuum case inner rotary lift adjustment screw rod lifting controllable adjusting screw(rod), three lift adjustment screw rods cooperatively interact and can realize support platform along the movement of y axle, around the rotation of x axle and z axle;
The heavy platform of adjusting is pressed in support platform by Action of Gravity Field, by support platform, can realize the adjusting of heavy type being adjusted to platform.The heavy platform side of adjusting is provided with two Level tune screw rods along z direction of principal axis, rotation Level tune screw rod controllable levels adjusting screw(rod) flexible, and two Level tune screw rods cooperatively interact and can realize the heavy platform of adjusting along the movement of z axle, around the rotation of y axle.
To be measured along x shaft distortion and around the rotation of x, do not affect being connected of splined shaft and spline housing, therefore can not consider that the distortion of this direction returns.
Between lift adjustment screw rod and support platform, by self-aligning bearing, be connected, therefore rotating single lift adjustment screw rod can not be subject to the impact of other two lift adjustment screw rods, by 3, just can adjust a plane.Level tune screw rod is connected by two vertically arranged oscillating bearings in axle center and the heavy platform of adjusting, and oscillating bearing is sleeved on the axis of guide, therefore has more adjusting remaining.
Output shaft in thermovacuum case cannot carry out the demarcation of center line, therefore must adopt aid.By the observation camera lens of thermovacuum case top and side, can clearly observe the position of to be measured output shaft, under normal temperature environment, make two parallel scale marks in graticule just overlap with output shaft sideline, can record the center of to be measured output shaft, to be measured output shaft is generally rule distortion, therefore, after to be measured distortion completes, by regulating support, control to be measured motion, until two parallel scale marks equate to the distance between the sideline of output shaft in observation camera lens, make under output shaft hot vacuum environment with normal temperature original state under central axis position remain unchanged.Cooperatively interacting of two observation camera lenses, 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 the torque testing device schematic diagram under a kind of hot vacuum environment
Fig. 2 is that Fig. 1 is left view
Fig. 3 is the vertical view of Fig. 1
Embodiment
In conjunction with Fig. 1 to Fig. 3, the torque testing device under a kind of hot vacuum environment, described device comprises adjusting support, observation group, deflector rod device, connection spline, device for sealing magnetic fluid, thermovacuum case.Described thermovacuum case also comprises case lid 3 and casing 2, and described casing 2 seals by case lid 3, and described magnetic fluid seal driving axle 21 is through case lid 3.Described adjusting support is arranged in thermovacuum case, to be measured output shaft of described connection spline joint 7 and magnetic fluid seal driving axle 21, described deflector rod device is fixed in thermovacuum case and plectrum 9 acts on connection spline, and the tank wall of described thermovacuum case is provided with observation group.
Described adjusting support comprises heavy platform 20, support platform 10, lift adjustment screw rod 5, the Level tune screw rod 15 etc. adjusted.The described heavy platform 20 of adjusting is placed in support platform 10, and described support platform 10 lower surfaces are supported by 5 conducts of three lift adjustment screw rods.Described lift adjustment screw rod 5 upper ends are fixing with the bearing seat 18 of support platform 10 lower surfaces by self-aligning bearing 19, and the lower end of described lift adjustment screw rod 5 is drawn out to outside case through the threaded hole on thermovacuum case 2.Two Level tune screw rods 15 are installed in described heavy platform 20 sides of adjusting, described Level tune screw rod 15 is spatially perpendicular with to be measured output shaft 7, described Level tune screw rod 15 one end are drawn out to outside case through the threaded hole on vacuum tank, the other end is connected with the heavy platform 20 of adjusting by the oscillating bearing 17 of two series connection, described oscillating bearing 17 is sleeved on the guiding axle bed of heavy adjustment platform 20 sides, and described two oscillating bearings 17 vertically connect by adapter sleeve 16 axle center.
Described to be measured output shaft 7 ends and magnetic fluid seal driving axle 21 tops are set with splined shaft, and described spline housing 8 is sleeved on splined shaft.
Described deflector rod device comprises plectrum 9, the tooth bar 23 of two ends band sliding axle, gear 11, rotating shaft 22.The tooth bar 23 of described two ends band sliding axle is fixed on driving lever installing plate 12 by sliding axle mount pad 13, described gear 11 centers and rotating shaft 22 are fixed and are meshed with tooth bar 23, the logical sealing shroud of described rotating shaft 22 is drawn out to outside thermovacuum case, described plectrum 9 has two and be vertically fixed on tooth bar 23, described plectrum 9 passes respectively the two ends that to be measured output shaft 7 and magnetic fluid seal driving axle 21 are sleeved on spline housing 8, described plectrum 9 can promote spline housing and not affect splined shaft with 23 movements of tooth, described installing plate 12 one end are fixed on thermovacuum case 2, the other end supports by stiffening plate 14.
Described observation group is arranged on the top and side and relative with to be measured output shaft 7 lateral location of thermovacuum box body 2; Described observation group comprises observation camera lens 26 and view window 1; Described observation camera lens 26 is arranged on view window 1, and described observation camera lens 26 comprises eyepiece 27, graticule 28, object lens 29, and described graticule 28 is arranged between eyepiece 27 and object lens 29, has two parallel scale marks on described graticule.
Claims (2)
1. the torque testing device under hot vacuum environment, 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, 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 heavy platform, support platform, lift adjustment screw rod, the Level tune screw rod adjusted; The described heavy platform of adjusting is placed in support platform, and three lift adjustment screw rods are passed through as support in described support platform lower surface; Described lift adjustment screw rod upper end is fixed by the bearing seat of self-aligning bearing and support platform lower surface, and the lower end of described lift adjustment screw rod is drawn out to outside case through the threaded hole on thermovacuum case;
The described heavy platform side of adjusting is installed two Level tune screw rods, described Level tune screw rod and to be measured output shaft are spatially perpendicular, described Level tune screw rod one end is drawn out to outside case through the threaded hole on vacuum tank, the other end is connected with the heavy platform of adjusting by the oscillating bearing of two series connection, described oscillating bearing is sleeved on the guiding axle bed of heavy adjustment platform side, and described two oscillating bearings vertically connect by adapter sleeve axle center;
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 passes respectively the two ends that to be measured output shaft and magnetic fluid seal driving axle sleeve are contained in spline housing, described plectrum moves and can promote spline housing and not affect splined shaft with tooth bar, described installing plate one end is fixed on thermovacuum case, and the other end supports by stiffening plate;
Described observation group is arranged on thermovacuum case top and side and relative with to be measured output shaft lateral location; Described observation group comprises observation camera lens and view window; Described observation camera lens is arranged on view window, and described observation camera lens comprises eyepiece, graticule, object lens, and described graticule is arranged between eyepiece and object lens, has two parallel scale marks on described graticule.
2. the torque testing device under a kind of hot vacuum environment as claimed in claim 1, is characterized in that: 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584188.XU CN203561541U (en) | 2013-09-18 | 2013-09-18 | Torque testing device in thermal vacuum environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584188.XU CN203561541U (en) | 2013-09-18 | 2013-09-18 | Torque testing device in thermal vacuum environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561541U true CN203561541U (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320584188.XU Withdrawn - After Issue CN203561541U (en) | 2013-09-18 | 2013-09-18 | Torque testing device in thermal vacuum environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561541U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487316A (en) * | 2013-09-18 | 2014-01-01 | 浙江工业大学 | Torque testing device under thermal vacuum environment |
| CN103487270A (en) * | 2013-09-18 | 2014-01-01 | 浙江工商大学 | Torsion experiment testing device under hot vacuum environment |
| CN107941362A (en) * | 2017-12-28 | 2018-04-20 | 中国科学院西安光学精密机械研究所 | A kind of frock of layouting for thermal vacuum test |
-
2013
- 2013-09-18 CN CN201320584188.XU patent/CN203561541U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487316A (en) * | 2013-09-18 | 2014-01-01 | 浙江工业大学 | Torque testing device under thermal vacuum environment |
| CN103487270A (en) * | 2013-09-18 | 2014-01-01 | 浙江工商大学 | Torsion experiment testing device under hot vacuum environment |
| CN103487270B (en) * | 2013-09-18 | 2015-10-28 | 浙江工商大学 | Torsion test proving installation under hot vacuum environment |
| CN103487316B (en) * | 2013-09-18 | 2015-10-28 | 浙江工业大学 | Armature-moment-testing device under a kind of hot vacuum environment |
| CN107941362A (en) * | 2017-12-28 | 2018-04-20 | 中国科学院西安光学精密机械研究所 | A kind of frock of layouting for thermal vacuum test |
| CN107941362B (en) * | 2017-12-28 | 2023-12-12 | 中国科学院西安光学精密机械研究所 | Point distribution tool for thermal vacuum test |
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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: 20140423 Effective date of abandoning: 20151028 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140423 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |