CN103487316A - Torque testing device under thermal vacuum environment - Google Patents
Torque testing device under thermal vacuum environment Download PDFInfo
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- CN103487316A CN103487316A CN201310430888.8A CN201310430888A CN103487316A CN 103487316 A CN103487316 A CN 103487316A CN 201310430888 A CN201310430888 A CN 201310430888A CN 103487316 A CN103487316 A CN 103487316A
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 239000011553 magnetic fluid Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
A torque testing device under a thermal vacuum environment includes an adjusting machine base, an observation group, a driving lever device, connecting splines and a thermal vacuum box, wherein the adjusting machine base and the driving lever device are mounted in the thermal vacuum box; a workpiece to be tested is mounted on the adjusting machine base; an output shaft of the workpiece to be tested is connected with a magnetofluid seal transmission shaft through the connecting splines and is led out of the thermal vacuum box; the connecting splines are connected with the driving lever device; the observation group is arranged on the box wall of the thermal vacuum box. The device adopts observation lenses to observe and record the position of the output shaft of the workpiece to be tested, adopts the driving lever device to control the disconnection and connection of the output shaft of the workpiece to be tested and the magnetofluid seal transmission shaft, adopts the adjusting machine base to adjust the spatial position of the workpiece to be tested in the thermal vacuum box, effectively avoids the influence of deformation of the workpiece to be tested on the testing in a thermal vacuum testing, is suitable for high-precision torque testing under the thermal vacuum environment, and the like, and is simple to operate and high in precision.
Description
Technical field
The present invention relates to the torque testing device under hot vacuum environment
Background technology
Space flight is applied to the singularity of outer space environment with equipment because of it, so high performance requirement is arranged.For meeting the design needs, need, at the hot vacuum environment of the ground simulation outer space, check performance and the function of to be measured under vacuum and thermal cycle conditions.In the thermal vacuum test measured piece being driven to or load to simulate 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, transmission of torque is arrived to the outside of vacuum tank, drive load and information measurement are carried out outside the 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 the 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 are heated up or lower the temperature, and after it is steady, test next time.In test process, the 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, makes the shaft core position of its output shaft be 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 the 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 outside 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, accurately still the be 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 invention 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 present invention solves its technical matters employing is:
Torque testing device under a kind of hot vacuum environment, comprise and regulate support, observation group, deflector rod device, connection spline, thermovacuum case.Described adjusting support is arranged in the thermovacuum case, install to be measured on described adjusting support, 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 the thermovacuum case; Described connection spline joint deflector rod device, described deflector rod device is arranged in the thermovacuum case; The tank wall of described thermovacuum case is provided with the observation group.
Described adjusting support comprises heavy platform, support platform, lift adjustment screw rod, the Level tune screw rod etc. adjusted.The described heavy platform of adjusting is placed on 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 the 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 the 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 the driving lever installing plate by the 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 the 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 the 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, and two parallel scale marks are arranged 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 invention is:
1, under the normal temperature non-vacuum environment, to be measured clamping adjusted on platform in the heavy type of regulating support, to be measured output shaft and magnetic fluid seal driving axle are passed through to spline joint.
2, adjust the observation camera lens of thermovacuum box top and side, make it possible to observe clearly the output shaft of to be measured, then regulate respectively the observation camera lens, two parallel scale marks in graticule are overlapped just, as the benchmark of subsequent adjustment with the 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, coordinate and regulate support and 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, be 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 invention 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 present invention adopts the observation camera lens to observe and record to be measured output shaft, adopt deflector rod device to control de-the closing between to be measured output shaft and magnetic fluid seal driving axle, by regulating support, adjusts to be measured the locus in the thermovacuum tank.Therefore, the initial position of to be measured output shaft of observation shot record under normal temperature environment, then throw off itself and being connected of magnetic fluid seal driving axle by deflector rod device, allow to be measured Free Transform under hot vacuum environment, after temperature is steady, coordinate and adjust support by the observation camera lens, make to be measured output shaft again overlap with the axis of magnetic fluid seal driving axle, connect to be measured output shaft and magnetic fluid seal driving axle by deflector rod device again, carry out follow-up test.Also can throw off being connected of to be measured output shaft and magnetic fluid seal driving axle by deflector rod device after to be measured loading completed, conveniently carry out the test of no-load characteristic.
Deflector rod device has adopted the design concept of rack-and-pinion, rotation is drawn out to the outer rotating shaft of thermovacuum tank and can moves 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.Be set with splined shaft on to be measured output shaft and magnetic fluid seal driving axle, 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 and moves and drive 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 throwing off between to be measured output shaft and magnetic fluid seal driving axle and being connected.
Regulate support and can realize five degree of freedom.To be measured is fixed on heavy the adjustment on platform, and setting to be measured output axial direction is the x axle, and the vertical heavy direction of adjusting platform is that vertical direction is the 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 that support platform is along the movement of y axle, around the rotation of x axle and z axle;
The heavy platform of adjusting is pressed on support platform by Action of Gravity Field, can realize heavy type is adjusted the adjusting of platform by support platform.The heavy platform side of adjusting is equipped with two Level tune screw rods along the 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 that the heavy platform of adjusting is along the movement of z axle, around the rotation of y axle.
To be measured do not affect being connected of splined shaft and spline housing along the x shaft distortion and around the rotation of x, therefore can not consider the distortion recurrence of this direction.
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.The Level tune screw rod is connected with the heavy platform of adjusting by two vertically arranged oscillating bearings in axle center, and oscillating bearing is sleeved on the axis of guide, so more adjusting remaining is arranged.
Output shaft in the thermovacuum case can't carry out the demarcation of center line, therefore must adopt aid.Can clearly observe the position of to be measured output shaft by the observation camera lens of thermovacuum case top and side, under normal temperature environment, make two parallel scale marks in graticule just overlap with the output shaft sideline, can record the center of to be measured output shaft, to be measured output shaft is generally the rule distortion, therefore, after to be measured distortion completes, control to be measured motion by regulating support, until in the observation camera lens, two parallel scale marks equate to the distance between the sideline of output shaft, make under the output shaft hot vacuum environment with the normal temperature original state under the 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, meet and regulate requirement.
The 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 and method under a kind of hot vacuum environment, described device comprises regulates 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 is by case lid 3 sealings, and described magnetic fluid seal driving axle 21 is through case lid 3.Described adjusting support is arranged in the 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 the thermovacuum case and plectrum 9 acts on the connection spline, and the tank wall of described thermovacuum case is provided with the 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 on 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 1 ends 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 the 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 1 ends 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, and two parallel scale marks are arranged on described graticule.
Claims (2)
1. the torque testing device under a 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 the thermovacuum case, install to be measured on described adjusting support, 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 the thermovacuum case; Described connection spline joint deflector rod device, described deflector rod device is arranged in the thermovacuum case; The tank wall of described thermovacuum case is provided with the observation group.
Described adjusting support comprises heavy platform, support platform, lift adjustment screw rod, the Level tune screw rod etc. adjusted.The described heavy platform of adjusting is placed on 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 the 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 the 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 the driving lever installing plate by the 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 the 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 the 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, and two parallel scale marks are arranged on described graticule.
2. the torque testing device and method under a kind of hot vacuum environment as claimed in claim 1, it 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 |
|---|---|---|---|
| CN201310430888.8A CN103487316B (en) | 2013-09-18 | 2013-09-18 | Armature-moment-testing device under a kind of hot vacuum environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310430888.8A CN103487316B (en) | 2013-09-18 | 2013-09-18 | Armature-moment-testing device under a kind of hot vacuum environment |
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| Publication Number | Publication Date |
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| CN103487316A true CN103487316A (en) | 2014-01-01 |
| CN103487316B CN103487316B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310430888.8A Active CN103487316B (en) | 2013-09-18 | 2013-09-18 | Armature-moment-testing device under a kind of hot vacuum environment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261288A (en) * | 2019-05-21 | 2019-09-20 | 浙江工业大学 | A kind of assemble type high/low temperature vacuum tank |
| CN110926712A (en) * | 2019-11-21 | 2020-03-27 | 广州欧特士传动设备有限公司 | Speed reducer sealing test platform |
| CN112748068A (en) * | 2020-12-30 | 2021-05-04 | 浙江工业大学 | Friction experiment device suitable for low-temperature vacuum condition |
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| US4869112A (en) * | 1988-11-08 | 1989-09-26 | Mts Systems Corporation | Screw-driven actuator for test frame |
| CN101281090A (en) * | 2008-05-16 | 2008-10-08 | 西安理工大学 | Five-axis test desk under high and low temperature environment |
| CN101788354A (en) * | 2010-01-11 | 2010-07-28 | 浙江工业大学 | Hot vacuum environment test moment value correction method |
| CN203561541U (en) * | 2013-09-18 | 2014-04-23 | 浙江工业大学 | Torque testing device in thermal vacuum environment |
-
2013
- 2013-09-18 CN CN201310430888.8A patent/CN103487316B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4869112A (en) * | 1988-11-08 | 1989-09-26 | Mts Systems Corporation | Screw-driven actuator for test frame |
| CN101281090A (en) * | 2008-05-16 | 2008-10-08 | 西安理工大学 | Five-axis test desk under high and low temperature environment |
| CN101788354A (en) * | 2010-01-11 | 2010-07-28 | 浙江工业大学 | Hot vacuum environment test moment value correction method |
| CN203561541U (en) * | 2013-09-18 | 2014-04-23 | 浙江工业大学 | Torque testing device in thermal vacuum environment |
Non-Patent Citations (1)
| Title |
|---|
| 刘学凤等: ""旋转电机输出轴转矩测试研究"", 《机械制造》, vol. 50, no. 574, 31 December 2012 (2012-12-31), pages 59 - 61 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261288A (en) * | 2019-05-21 | 2019-09-20 | 浙江工业大学 | A kind of assemble type high/low temperature vacuum tank |
| CN110926712A (en) * | 2019-11-21 | 2020-03-27 | 广州欧特士传动设备有限公司 | Speed reducer sealing test platform |
| CN112748068A (en) * | 2020-12-30 | 2021-05-04 | 浙江工业大学 | Friction experiment device suitable for low-temperature vacuum condition |
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| Publication number | Publication date |
|---|---|
| CN103487316B (en) | 2015-10-28 |
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Effective date of registration: 20181220 Address after: 401320 Chongqing Banan District Yunan Avenue 239 17-2 Patentee after: Chongqing Heyi Technology Co., Ltd. Address before: Hangzhou City, Zhejiang province 310014 City Zhaohui District Six Patentee before: Zhejiang University of Technology |
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Effective date of registration: 20201125 Address after: 214000 1-2201-2, financial 8th Street, Wuxi City, Jiangsu Province Patentee after: Jiangsu intelligent workshop Technology Research Institute Co.,Ltd. Address before: Wu Yuan Zhen Da Liu Cun, Haiyan County, Jiaxing City, Zhejiang Province Patentee before: Haiyan Hongjian Hardware Co.,Ltd. |
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Application publication date: 20140101 Assignee: Hebei jiubanghua Environmental Protection Technology Co.,Ltd. Assignor: Jiangsu intelligent workshop Technology Research Institute Co.,Ltd. Contract record no.: X2022980004441 Denomination of invention: A torque testing device in thermal vacuum environment Granted publication date: 20151028 License type: Common License Record date: 20220420 |
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