CN110044648A - Vacuum test device equipped with mobile vacuum extract system - Google Patents

Vacuum test device equipped with mobile vacuum extract system Download PDF

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Publication number
CN110044648A
CN110044648A CN201910425832.0A CN201910425832A CN110044648A CN 110044648 A CN110044648 A CN 110044648A CN 201910425832 A CN201910425832 A CN 201910425832A CN 110044648 A CN110044648 A CN 110044648A
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CN
China
Prior art keywords
vacuum
vacuum tank
motor
slot
fluid sealing
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Pending
Application number
CN201910425832.0A
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Chinese (zh)
Inventor
张利
张昊
应荣敏
纪仁全
傅昱斐
叶必卿
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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Priority to CN201910425832.0A priority Critical patent/CN110044648A/en
Publication of CN110044648A publication Critical patent/CN110044648A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/002Test chambers

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ecology (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The invention discloses a kind of vacuum test devices equipped with mobile vacuum extract system, including vacuum tank, stainless steel plate with T-slot, vacuum-pumping system, magnet fluid sealing axis, driving, loading device and measured workpiece, vacuum tank, driving, loading device and measured workpiece are arranged in the stainless steel plate with T-slot, the driving, loading device is arranged outside vacuum tank, the measured workpiece is arranged inside vacuum tank, magnet fluid sealing axis is arranged in vacuum tank and driving, between loading device, for connecting the driving outside measured workpiece and vacuum tank in vacuum tank, loading device, guarantee the leakproofness of vacuum tank while passing movement.Vacuum tank, driving, loading device and measured workpiece are arranged in the stainless steel plate with T-slot the present invention, without the pose adjustment of each mounting platform, simplify regulating mechanism and adjustment process, improve system stiffness, to improve test accuracy.

Description

Vacuum test device equipped with mobile vacuum extract system
Technical field
The present invention relates to spacecraft vacuum test fields, more specifically, more particularly to a kind of equipped with mobile vacuum pumping The vacuum test device of gas system.
Background technique
During the development of spacecraft and military service, it is necessary to various types of space environment simulation tests are carried out, with abundant The latent defect of exposing product, that examines spacecraft designs and manufactures quality.
It is driven for the long-life of spacecraft under vacuum conditions, load test, needs to provide satisfaction to measured workpiece true The vacuum environment that reciprocal of duty cycle requires.Vacuum tank, measured workpiece platform and elevating mechanism are made of one and are each by existing way A vacuum tank provides a whole set of vacuum-pumping system.This way makes vacuum jar structure become complicated, and maintenance also becomes difficult, together When need to cause the waste of resource equipped with a large amount of vacuum-pumping system.Due to driving, loading device cannot be in vacuum environment Lower normal work is driven so driving, loading device are placed in outside vacuum tank, and measured workpiece is placed in inside vacuum tank when test Dynamic, loading device and measured workpiece installation on different platforms, need to adjust the posture of each mounting platform to meet test The requirement of concentricity, each mounting platform need to be arranged 6 adjustable regulating mechanisms of freedom degree.Before on-test, due to temperature Variation, surface subsidence and the influence of itself stress variation, need on 3 mounting platforms and mounting platform driving plus It carries to set and be adjusted with measured workpiece, make up to defined concentricity requirement, this makes the adjusting machine of each mounting platform Structure and concentricity adjustment process become complicated, while can also reduce the system stiffness of vacuum test device.During the test, it drives It moves, the vibration that the high-speed rotation of loading device can make each mounting platform that different frequency easily occur, to influence test result.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, and it is removable, coaxial to propose a kind of vacuum-pumping system The vacuum test device equipped with mobile vacuum extract system that degree adjustment is simple, system stiffness is high.
The present invention is through the following technical solutions to achieve the above objectives: a kind of vacuum equipped with mobile vacuum extract system Experimental rig including vacuum tank, the stainless steel plate with T-slot, vacuum-pumping system, magnet fluid sealing axis, driving device, adds It carries and sets and the stainless steel plate with T-slot is arranged in measured workpiece, vacuum tank, driving device, loading device and measured workpiece On, the driving device, loading device are arranged outside vacuum tank, and the measured workpiece is arranged inside vacuum tank, magnetic fluid It seals axis to be arranged between vacuum tank and driving device, loading device, one end of the measured workpiece in vacuum tank passes through magnetic fluid The driving device outside axis connection vacuum tank is sealed, the other end of the measured workpiece in vacuum tank is true by magnet fluid sealing axis connection Loading device outside empty van guarantees the leakproofness of vacuum tank, between magnet fluid sealing axis and vacuum tank while passing movement It is connected by ring flange, there is aspirating hole on vacuum tank, vacuum tank is vacuumized by vacuum-pumping system, simulates vacuum test Vacuum environment;
LF160 connecting flange is provided on the vacuum tank surface, the vacuum-pumping system is mobile open frame trolley Vacuum pump set, mobile open frame trolley vacuum unit are connected with vacuum tank by LF160 connecting flange and are that vacuum tank is taken out very Sky, mobile open frame trolley vacuum unit are internally provided with forepump, live to take out pump and compound vacuum gauge, using forepump and live to take out Vacuum degree in vacuum tank is extracted into specified require hereinafter, simulating the vacuum environment of vacuum test, compound vacuum gauge is to vacuum by pump Case carries out vacuum measurement.
Further, the vacuum tank using Pirani gauge as low-vacuum measurement rule, ionization gauge as high vacuum measuring gage, The regulating of Pirani gauge and ionization gauge is mounted on vacuum and thinks in the respective flange at top, and equipped with pressure vacuum gauge as low vacuum survey The auxiliary measurement system of amount.
Further, the forepump and the inlet and outlet piping that firmly pumping pumps are all made of stainless steel metal pipeline.
Further, the T-slot in the stainless steel plate with T-slot is not continuous, and T-slot is arranged in parallel, The vacuum tank, driving device, loading device and measured workpiece are fitted to the band T-slot by bolt and T-slot Stainless steel plate on, without adjusting the posture of each mounting platform in installation process, the presence of T-slot makes installation become letter It is single, it is easier to meet the requirement of concentricity, while system stiffness can be improved, to improve test accuracy.
Further, the loading device includes loading motor and first motor support base, and first motor support base passes through The cooperation of bolt and T-slot is fixed in the stainless steel plate with T-slot, and loading motor is mounted on first motor support base; The driving device includes driving motor and the second motor supporting base, and the second motor supporting base passes through the cooperation of bolt and T-slot It is fixed in the stainless steel plate with T-slot, driving motor is mounted on the second motor supporting base.
Further, the adjustment of concentricity be by driving motor, loading motor and magnet fluid sealing axis common guarantee, Seam allowance is had on the magnet fluid sealing axis and driving motor, loading motor, is processed on the vacuum tank close with magnetic fluid Two magnet fluid sealing axis when assembly, are first installed interface with vacuum tank and are connected, then adjusted by the connected installation interface of sealing mouth The distance between driving motor, loading motor and vacuum tank adjust driving motor, loading motor using mandrel and positive coupling With the installation site of motor supporting base, on the basis of magnet fluid sealing axis shaft, whether detection motor output shaft, which meets installation, is wanted It asks, if being unsatisfactory for installation requirement, motor or electric machine support is finely adjusted, until meeting installation requirement, to guarantee to drive The concentricity of dynamic motor, loading motor and magnet fluid sealing axis, removes rigid central spindle and positive coupling after determining installation site, And installation is installed between loading motor and magnet fluid sealing axis around property shaft coupling between driving motor and magnet fluid sealing axis Torque sensor and retarder, installation is supported around property shaft coupling, extension shaft, by side workpiece and measured workpiece inside vacuum tank Seat.
Further, the vacuum tank is cuboid, and 4 sides of vacuum tank pass through welding system by 4 blocks of stainless steel steel steel plates At top surface, which is bolted, is fixed on side and has at joint face sealing material, and vacuum tank is bolted on band T-type There is sealing material in the stainless steel plate of slot and at joint face, realize the sealing of vacuum tank, vacuum tank top surface has observation window, can To observe the motion state of measured workpiece in vacuum tank in real time during the test.
The beneficial effects of the present invention are: vacuum tank, driving device, loading device and measured workpiece are arranged the present invention In stainless steel plate with T-slot, without the pose adjustment of each mounting platform, regulating mechanism and adjustment process are simplified, is mentioned High system stiffness, to improve test accuracy;Coaxiality adjusting method has been proposed newly, concentricity set-up procedure is simplified, Reduce the error of concentricity adjustment;Vacuum tank is made of stainless-steel sheet and sealing material by welding and being bolted, letter The structure for having changed original vacuum tank, reduces costs;Vacuum tank is made into cuboid and the space utilization rate of vacuum tank can be improved, take out Vacuum value of velocity and heating speed, have saved the energy;It is removable to evacuate extract system, a set of vacuum system can be not in different time The vacuum tank of same specification vacuumizes, and improves the utilization rate of vacuum vacuum system, reduces resource waste.
Detailed description of the invention
Fig. 1 is a kind of main view of the vacuum test device equipped with mobile vacuum extract system of the present invention.
Fig. 2 is a kind of top view of the vacuum test device equipped with mobile vacuum extract system of the present invention.
Fig. 3 is the structural schematic diagram of the mobile open frame trolley vacuum unit of the present invention.
Fig. 4 is vacuum tank external structure schematic diagram of the present invention.
In figure, 101- first motor support base, 102- driving motor, 103- around property shaft coupling, 104- magnet fluid sealing axis, 107- retarder support base, stainless steel plate of the 108- with T-slot, 109- torque sensor support base, 110- vacuum tank, 112- Torque sensor, 113- retarder, 114- loading motor, 302-LF160 connecting flange, 303- electric plug interface, 304- flange Disk.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As shown in figures 1-4, a kind of vacuum test device equipped with mobile vacuum extract system, including vacuum tank 110, Stainless steel plate 108, vacuum-pumping system, magnet fluid sealing axis 104, driving device, loading device and tested work with T-slot Part, vacuum tank 110, driving device, loading device and measured workpiece are arranged in the stainless steel plate 108 with T-slot, the drive Dynamic device, loading device are arranged outside vacuum tank 110, and the measured workpiece is arranged inside vacuum tank 110, magnet fluid sealing Axis 104 is arranged between vacuum tank 110 and driving device, loading device, and one end of the measured workpiece in vacuum tank 110 passes through magnetic Fluid Sealing axis 104 connects the driving device outside vacuum tank 110, and the other end of the measured workpiece in vacuum tank 110 passes through magnetic current Body seals the loading device outside the connection vacuum tank 110 of axis 104, guarantees the leakproofness of vacuum tank 110, magnetic while passing movement It is connected between Fluid Sealing axis 104 and vacuum tank 110 by ring flange 304, has aspirating hole on vacuum tank 110, taken out by vacuum Gas system vacuumizes vacuum tank 110, simulates the vacuum environment of vacuum test.
Torque sensing is provided in the stainless steel plate 108 with T-slot between driving device and magnet fluid sealing axis 104 Device support base 109 is provided with deceleration in the stainless steel plate 108 with T-slot between loading device and magnet fluid sealing axis 104 Device support base 107 and torque sensor support base 109, for installing retarder 113 and torque sensor 112.
LF160 connecting flange 115 is provided on 110 surface of vacuum tank, the vacuum-pumping system is mobile machine Frame trolley vacuum unit, mobile open frame trolley vacuum unit are connected simultaneously by LF160 connecting flange 115 with vacuum tank 110 It being vacuumized for vacuum tank 110, mobile open frame trolley vacuum unit is internally provided with forepump, lives to take out pump and compound vacuum gauge, It using forepump and firmly takes out pump and the vacuum degree in vacuum tank 110 is extracted into specified require hereinafter, simulating the vacuum ring of vacuum test Border, compound vacuum gauge carry out vacuum measurement to vacuum tank 110.
The vacuum tank 110 is advised using Pirani gauge as low-vacuum measurement, and ionization gauge is as high vacuum measuring gage, Pirani gauge With ionization gauge regulate be mounted on vacuum think top respective flange on, and equipped with pressure vacuum gauge as the auxiliary of low-vacuum measurement Help measuring system.
The forepump and the inlet and outlet piping for living to take out pump are all made of stainless steel metal pipeline.
T-slot in the stainless steel plate 108 with T-slot is not continuously that T-slot is arranged in parallel, described true Empty van 110, driving device, loading device and measured workpiece by bolt and T-slot be fitted to it is described with T-slot not It becomes rusty on steel sole plate 108.
The loading device includes loading motor 114 and first motor support base 101, and first motor support base 101 passes through The cooperation of bolt and T-slot is fixed in the stainless steel plate 108 with T-slot, and loading motor 114 is mounted on first motor support On seat 101;The driving device includes driving motor 102 and the second motor supporting base, and the second motor supporting base passes through bolt and T The cooperation of type groove is fixed in the stainless steel plate 108 with T-slot, and driving motor 102 is mounted on the second motor supporting base.
The adjustment of concentricity be by 104 common guarantee of driving motor 102, loading motor 114 and magnet fluid sealing axis, Seam allowance is had on the magnet fluid sealing axis 104 and driving motor 102, loading motor 114, is added on the vacuum tank 110 The installation interface that work is connected with magnet fluid sealing seam allowance when assembly, first pacifies two magnet fluid sealing axis 104 with vacuum tank 110 Attaching mouth is connected, and then adjusts the distance between driving motor 102, loading motor 114 and vacuum tank 110, using mandrel and just Property shaft coupling adjustment driving motor 102, loading motor 114 and motor supporting base installation site, with 104 turns of magnet fluid sealing axis On the basis of axis, whether detection motor output shaft meets installation requirement, if being unsatisfactory for installation requirement, to motor or electric machine support It is finely adjusted, until meeting installation requirement, to guarantee driving motor 102, loading motor 114 and magnet fluid sealing axis 104 Concentricity removes rigid central spindle and positive coupling after determining installation site, and in driving motor 102 and magnet fluid sealing axis Installation installs torque sensor 112 around property shaft coupling 103 between loading motor 114 and magnet fluid sealing axis 104 between 104 With retarder 113, install inside vacuum tank 110 around property shaft coupling 103, extension shaft, by side workpiece and measured workpiece support base.
The vacuum tank 110 is cuboid, and 1104 sides of vacuum tank are made up of 4 blocks of stainless steel steel steel plates of welding, Top surface, which is bolted, is fixed on side and has at joint face sealing material, and vacuum tank 110 is bolted on band T-type There is sealing material in the stainless steel plate 108 of slot and at joint face, realizes the sealing of vacuum tank 110,110 top surface of vacuum tank has Observation window can observe the motion state of measured workpiece in vacuum tank 110 in real time during the test.
Above-described embodiment is presently preferred embodiments of the present invention, is not a limitation on the technical scheme of the present invention, as long as Without the technical solution that creative work can be realized on the basis of the above embodiments, it is regarded as falling into the invention patent Rights protection scope in.

Claims (7)

1. a kind of vacuum test device equipped with mobile vacuum extract system, it is characterised in that: including vacuum tank (110), band T The stainless steel plate (108) of type groove, vacuum-pumping system, magnet fluid sealing axis (104), driving device, loading device and tested Workpiece, vacuum tank (110), driving device, loading device and measured workpiece are arranged on the stainless steel plate with T-slot (108), The driving device, loading device setting are external in vacuum tank (110), and the measured workpiece setting is internal in vacuum tank (110), Magnet fluid sealing axis (104) is arranged between vacuum tank (110) and driving device, loading device, tested in vacuum tank (110) One end of workpiece connects the driving device of vacuum tank (110) outside by magnet fluid sealing axis (104), the quilt in vacuum tank (110) Loading device of the other end of workpiece by magnet fluid sealing axis (104) connection vacuum tank (110) outside is surveyed, in the same of passing movement When guarantee vacuum tank (110) leakproofness, between magnet fluid sealing axis (104) and vacuum tank (110) by ring flange (304) company It connects, vacuum tank has aspirating hole on (110), vacuumizes vacuum tank (110) by vacuum-pumping system, simulates the true of vacuum test Altitude;
It is provided with LF160 connecting flange (115) on vacuum tank (110) surface, the vacuum-pumping system is mobile machine Frame trolley vacuum unit, mobile open frame trolley vacuum unit are connected by LF160 connecting flange (115) with vacuum tank (110) It connects and is that vacuum tank (110) vacuumizes, mobile open frame trolley vacuum unit is internally provided with forepump, lives to take out pump and compound true Sky meter using forepump and firmly takes out pump and the vacuum degree in vacuum tank (110) is extracted into specified require hereinafter, simulating vacuum test Vacuum environment, compound vacuum gauge carry out vacuum measurement to vacuum tank (110).
2. a kind of vacuum test device equipped with mobile vacuum extract system according to claim 1, it is characterised in that: The vacuum tank (110) is advised using Pirani gauge as low-vacuum measurement, and ionization gauge is as high vacuum measuring gage, Pirani gauge and ionization Rule regulate be mounted on vacuum think top respective flange on, and be furnished with subsidiary of the pressure vacuum gauge as low-vacuum measurement System.
3. a kind of vacuum test device equipped with mobile vacuum extract system according to claim 1, it is characterised in that: The forepump and the inlet and outlet piping for living to take out pump are all made of stainless steel metal pipeline.
4. a kind of vacuum test device equipped with mobile vacuum extract system according to claim 1, it is characterised in that: T-slot in the stainless steel plate (108) with T-slot is not continuously that T-slot is arranged in parallel, the vacuum tank (110), driving device, loading device and measured workpiece are described with the stainless of T-slot by being fitted to for bolt and T-slot On steel sole plate (108).
5. a kind of vacuum test device equipped with mobile vacuum extract system according to claim 1, it is characterised in that: The loading device includes loading motor (114) and first motor support base (101), and first motor support base (101) passes through spiral shell The cooperation of bolt and T-slot is fixed on the stainless steel plate with T-slot (108), and loading motor (114) is mounted on first motor branch It supports on seat (101);The driving device includes driving motor (102) and the second motor supporting base, and the second motor supporting base passes through The cooperation of bolt and T-slot is fixed on the stainless steel plate with T-slot (108), and driving motor (102) is mounted on the second motor On support base.
6. a kind of vacuum test device equipped with mobile vacuum extract system according to claim 1, it is characterised in that: The adjustment of concentricity is by driving motor (102), loading motor (114) and magnet fluid sealing axis (104) common guarantee, institute It states with seam allowance on magnet fluid sealing axis (104) and driving motor (102), loading motor (114), in the vacuum tank (110) process the installation interface that is connected with magnet fluid sealing seam allowance on, when assembly, first by two magnet fluid sealing axis (104) and Vacuum tank (110) installs interface and is connected, then between adjustment driving motor (102), loading motor (114) and vacuum tank (110) Distance, use mandrel and positive coupling adjustment driving motor (102), loading motor (114) and motor supporting base installation Position, on the basis of magnet fluid sealing axis (104) shaft, whether detection motor output shaft meets installation requirement, if be unsatisfactory for Installation requirement is then finely adjusted motor or electric machine support, until meeting installation requirement, to guarantee driving motor (102), add The concentricity for carrying motor (114) and magnet fluid sealing axis (104) removes rigid central spindle and rigid shaft coupling after determining installation site Device, and installation is around property shaft coupling (103) between driving motor (102) and magnet fluid sealing axis (104), in loading motor (114) torque sensor (112) and retarder (113) are installed between magnet fluid sealing axis (104), in vacuum tank (110) It installs around property shaft coupling (103), extension shaft, by side workpiece and measured workpiece support base in portion.
7. a kind of vacuum test device equipped with mobile vacuum extract system according to claim 1, it is characterised in that: The vacuum tank (110) is cuboid, and (110) 4 sides of vacuum tank are made up of 4 blocks of stainless steel steel steel plates of welding, top surface It is bolted and is fixed on side and has at joint face sealing material, vacuum tank (110) is bolted on band T-slot Stainless steel plate (108) on and joint face at have a sealing material, realize the sealing of vacuum tank (110), vacuum tank (110) top surface With observation window, the motion state of vacuum tank (110) interior measured workpiece can be observed in real time during the test.
CN201910425832.0A 2019-05-21 2019-05-21 Vacuum test device equipped with mobile vacuum extract system Pending CN110044648A (en)

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CN201910425832.0A CN110044648A (en) 2019-05-21 2019-05-21 Vacuum test device equipped with mobile vacuum extract system

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Application Number Priority Date Filing Date Title
CN201910425832.0A CN110044648A (en) 2019-05-21 2019-05-21 Vacuum test device equipped with mobile vacuum extract system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112781852A (en) * 2020-12-30 2021-05-11 浙江工商大学 Drive loading platform under low-temperature vacuum condition
CN113532855A (en) * 2021-07-23 2021-10-22 北京卫星环境工程研究所 Ground comprehensive test system for verifying joint life of aerospace mechanical arm

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101886978A (en) * 2010-07-07 2010-11-17 四川大学 Vacuum high/low temperature environmental simulation electromechanical transmission mechanism comprehensive performance experimental system
CN103245501A (en) * 2013-04-22 2013-08-14 兰州空间技术物理研究所 Vacuum high-low temperature efficiency testing device for harmonic reducer
CN204359612U (en) * 2015-01-19 2015-05-27 浙江大学 A kind of negative pressure of vacuum, malleation and heat integration load consolidometer
CN108332966A (en) * 2017-12-25 2018-07-27 兰州空间技术物理研究所 A kind of space mechanism's ball screw assembly, vacuum test device
CN209841399U (en) * 2019-05-21 2019-12-24 浙江工业大学 Vacuum test device with movable vacuum pumping system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101886978A (en) * 2010-07-07 2010-11-17 四川大学 Vacuum high/low temperature environmental simulation electromechanical transmission mechanism comprehensive performance experimental system
CN103245501A (en) * 2013-04-22 2013-08-14 兰州空间技术物理研究所 Vacuum high-low temperature efficiency testing device for harmonic reducer
CN204359612U (en) * 2015-01-19 2015-05-27 浙江大学 A kind of negative pressure of vacuum, malleation and heat integration load consolidometer
CN108332966A (en) * 2017-12-25 2018-07-27 兰州空间技术物理研究所 A kind of space mechanism's ball screw assembly, vacuum test device
CN209841399U (en) * 2019-05-21 2019-12-24 浙江工业大学 Vacuum test device with movable vacuum pumping system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112781852A (en) * 2020-12-30 2021-05-11 浙江工商大学 Drive loading platform under low-temperature vacuum condition
CN113532855A (en) * 2021-07-23 2021-10-22 北京卫星环境工程研究所 Ground comprehensive test system for verifying joint life of aerospace mechanical arm
CN113532855B (en) * 2021-07-23 2024-03-12 北京卫星环境工程研究所 Ground comprehensive test system for verifying joint life of aerospace mechanical arm

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