CN101699249B - Device for measuring damping ratio of damper - Google Patents
Device for measuring damping ratio of damper Download PDFInfo
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- CN101699249B CN101699249B CN 200910210675 CN200910210675A CN101699249B CN 101699249 B CN101699249 B CN 101699249B CN 200910210675 CN200910210675 CN 200910210675 CN 200910210675 A CN200910210675 A CN 200910210675A CN 101699249 B CN101699249 B CN 101699249B
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- angular encoder
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Abstract
The invention provides a device for measuring the damping ratio of a damper, belonging to the technical field of space application equipment. The device comprises a measuring support, an rzeppa synchronizing universal coupling, a magnetic fluid sealing device, a coupling, a torque sensor, a loading device, a sensor support, a base, a temperature controller and an angle coder, wherein both the loading device and the sensor support are fixedly connected with the base; the torque sensor is connected with the loading device and the magnetic fluid sealing device; the rzeppa synchronizing universalcoupling is connected with the measuring support; and the measurement data measured by the torque sensor and the angle coder is accessed to a PC (personal computer) machine via a data wire to acquirethe measurement data. The device of the invention is capable of measuring the damping ratio of a damper assembly at minus100 to 70 DEG C and working stably within the vacuum, high-temperature or low-temperature environment; the device has the advantages of high measurement accuracy and high load matching performance; and the torque sensor has low temperature drifting.
Description
Technical field
The device of a kind of measuring damping ratio of damper of the present invention belongs to space application apparatus technical field.
Background technology
Be used for star, ship sun span opening mechanism, solar array expansion process at present, mainly rely on the snail wind spring of hinge between root hinge and plate to draw the energy of storage in, release energy during expansion, drive solar array and launch, windsurfing speed is uncontrollable in expansion process; Therefore, the root hinge that launches at solar array increases damper device, controls launching windsurfing speed.
The damping ratio of damper testing apparatus is used to test damper and loads the pairing different rotating speeds of moment of torsion in difference, calculates ratio of damping.In order to realize quality control to damper, need to adopt the combined test method, under the condition of ground simulation space environment, carry out the high and low temperature test, obtain accurate, reliable test data, improve the reliability and the development level of space application apparatus, also do not have special-purpose damping ratio of damper thermovacuum testing apparatus at present.
Summary of the invention
The objective of the invention is to propose a kind of device of measuring damping ratio of damper in order to solve the deficiencies in the prior art.
The objective of the invention is to be achieved through the following technical solutions.
The device of a kind of measuring damping ratio of damper of the present invention comprises tested damper, test bracket, ball cage synchronous universal coupling, rear flange lid, device for sealing magnetic fluid, shaft coupling A, torque sensor, shaft coupling B, charger, sensor support base, base, temperature control equipment and angular encoder; Its annexation is: charger is fixedlyed connected with base, sensor support base is fixedlyed connected with base, torque sensor is installed on the sensor support base, torque sensor is that twin shaft is stretched, one end is connected with charger by shaft coupling B, the other end is connected with an end of device for sealing magnetic fluid by shaft coupling A, and the flange of device for sealing magnetic fluid covers with the rear flange of thermovacuum jar fixedlys connected, and extend into thermovacuum jar inside and be connected with an end of ball cage synchronous universal coupling; The other end of ball cage synchronous universal coupling is connected with test bracket, and tested damper is installed on the test bracket, and angular encoder is installed on the test bracket, and the windup-degree of tested damper is delivered on the angular encoder by 1: 1 spur gear; Temperature control equipment is installed on the angular encoder, and the detecting information of torque sensor and angular encoder inserts the PC processing by data line and obtains test data;
Wherein charger comprise load pulley, wire rope, 6 small sheaves, large pulley, 2 location-plates, position fixing handles, add loads, support, 2 caging bolts, gag lever post; The large pulley upper end has two grooves that become 90 °, and large pulley and 6 small sheaves are double grooved pulley, and two rightabout loading wire rope are arranged, and the loading wire rope of each direction lays respectively in the different pulley grooves; Loading pulley is single groove pulley; Annexation is: location-plate by screw retention on large pulley, large pulley is connected with key with rotating shaft, rotating shaft is fixed by bearing seat and support, large pulley each side has 3 small sheaves that are fixed on the support, wherein the top of Zui Shangduan small sheave is circumscribed with the top of large pulley, the top of middle small sheave is tangent bottom with large pulley, and small sheave bottom is below middle small sheave; Location-plate is in the top and the left side of large pulley; Loading lower end that pulley is positioned at support is connected with bottom two small sheaves by wire rope; Adding loads is connected with the loading pulley by suspension hook; Position fixing handle is positioned at the location board slot of large pulley, can switch back and forth in two location board slots of large pulley during use; Gag lever post is fixed in the rotating shaft of large pulley, and two caging bolts are fixed on the support, is positioned at the rotating shaft both sides of large pulley, links to each other by wire rope between the pulley.
Beneficial effect
1) the present invention can be under vacuum environment carries out ratio of damping test under the different loading environments to the damper assembly of sun span opening mechanism, and can under vacuum environment, finish the simulation test of high and low temperature, realization improves reliability of products and development level to the quality control of damper;
2) one is moved, is controlled and is measured as in transporting something containerized of the present invention, can work in temperature range-100 ℃～+ 70 ℃, can make proving installation carry out stable work under vacuum, high and low temperature environment;
3) be applicable to the damper simulation test on the ground of all kinds of stars, ship sun span opening mechanism, it has the measuring accuracy height, and the load matched performance is good, and the temperature drift of torque sensor is little.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Wherein, the tested damper of 1-, 2-test bracket, 3-ball cage synchronous universal coupling, 4-rear flange lid, 5-device for sealing magnetic fluid, 6-shaft coupling A, 7-torque sensor, 8-shaft coupling B, 9-charger, 10-add loads, 11-sensor support base, 12-base, 13-temperature control equipment, 14-angular encoder.
Embodiment
Embodiment
The device of a kind of measuring damping ratio of damper of the present invention, as shown in Figure 1, comprise tested damper 1, test bracket 2, ball cage synchronous universal coupling 3, rear flange lid 4, device for sealing magnetic fluid 5, shaft coupling A6, torque sensor 7, shaft coupling B8, charger 9, sensor support base 11, base 12, temperature control equipment 13 and angular encoder 14, contain in the charger 9 and add loads 10; Charger 9 is fixedlyed connected with base 12, sensor support base 11 is fixedlyed connected with base 12, on the torque sensor 7 sensor installation bearings 11, torque sensor 7 is stretched for twin shaft, one end is connected with charger 9 by shaft coupling B8, the other end is connected with an end of device for sealing magnetic fluid 5 by shaft coupling A6, and the flange of device for sealing magnetic fluid 5 covers 4 with the rear flange of thermovacuum jar fixedlys connected, and extend into thermovacuum jar inside and be connected with an end of ball cage synchronous universal coupling 3; The other end of ball cage synchronous universal coupling 3 is connected with test bracket 2, tested damper 1 is installed on the test bracket 2, angular encoder 14 is installed on the test bracket 2, and the windup-degree of tested damper 1 is delivered on the angular encoder 14 by 1: 1 spur gear; Temperature control equipment 13 is installed on the angular encoder 14, and the detecting information of torque sensor 7 and angular encoder 14 inserts the PC processing by data line and obtains test data.
Principle of work of the present invention is:
In the adjustment vacuum tank, outer shaft is coaxial, determine that loading direction is consistent with damper shaft direction of motion, in the thermovacuum jar, tested damper 1 is installed on the test bracket 2, spacing handle in the charger is moved in the stopper slot, the loads 10 that adds of regulation is suspended to the loading pulley, lift spacing handle, release adds loads 10 and drives test specimen 1 rotation, torque sensor 7, the torque value of 14 pairs of tested dampers of angular encoder, the anglec of rotation is monitored, to be tested finishing, spacing handle is put into stopper slot, add loads and take off, preserve moment of torsion and angle-data from 10 loading pulleys; During negative testing, will load pulley and change to reverse loading, testing procedure is identical; Change different loads 10, the measuring damping ratio of damper of adding according to testing requirements.Test can be passed through temperature control equipment 13 when low-temperature working, guarantee angular encoder 14 operate as normal, avoids the drift of sensor output signal and influences the reliability and the precision of test data, and test data is then handled by PC.
Claims (1)
1. the device of a measuring damping ratio of damper comprises tested damper (1), test bracket (2), ball cage synchronous universal coupling (3), rear flange lid (4), device for sealing magnetic fluid (5), shaft coupling A (6), torque sensor (7), shaft coupling B (8), charger (9), sensor support base (11), base (12), temperature control equipment (13) and angular encoder (14); Its annexation is: charger (9) is fixedlyed connected with base (12), sensor support base (11) is fixedlyed connected with base (12), torque sensor (7) is installed on the sensor support base (11), torque sensor (7) is stretched for twin shaft, one end is connected with charger (9) by shaft coupling A (6), the other end is connected with an end of device for sealing magnetic fluid (5) by shaft coupling B (8), the flange of device for sealing magnetic fluid (5) and the rear flange of thermovacuum jar lid (4) is fixedlyed connected, and extend into that the thermovacuum jar is inner to be connected with an end of ball cage synchronous universal coupling (3); The other end of ball cage synchronous universal coupling (3) is connected with test bracket (2), tested damper (1) is installed on the test bracket (2), angular encoder (14) is installed on the test bracket (2), and the windup-degree of tested damper (1) is delivered on the angular encoder (14) by 1: 1 spur gear; Temperature control equipment (13) is installed on the angular encoder (14), and the detecting information of torque sensor (7) and angular encoder (14) inserts the PC processing by data line and obtains test data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910210675 CN101699249B (en) | 2009-11-05 | 2009-11-05 | Device for measuring damping ratio of damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910210675 CN101699249B (en) | 2009-11-05 | 2009-11-05 | Device for measuring damping ratio of damper |
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| Publication Number | Publication Date |
|---|---|
| CN101699249A CN101699249A (en) | 2010-04-28 |
| CN101699249B true CN101699249B (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910210675 Active CN101699249B (en) | 2009-11-05 | 2009-11-05 | Device for measuring damping ratio of damper |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915680B (en) * | 2010-08-04 | 2012-02-29 | 慈溪市福尔达实业有限公司 | Device for testing return time of damper |
| CN102175368B (en) * | 2011-01-05 | 2013-04-17 | 扬州电力设备修造厂 | Torque-measuring device and method of low-temperature electric executing mechanism |
| CN102288402B (en) * | 2011-07-25 | 2013-05-08 | 中国航空规划建设发展有限公司 | Method for monitoring hysteretic property of damper in real time or periodically |
| CN103630341B (en) * | 2013-09-18 | 2015-10-28 | 浙江工业大学 | Device for torsion experiment rotation characteristic test in thermal vacuum environment |
| CN103471838B (en) * | 2013-09-27 | 2015-10-28 | 中交公路长大桥建设国家工程研究中心有限公司 | A kind of device that the Static and dynamical behavior of damper is tested |
| CN105021379A (en) * | 2014-04-28 | 2015-11-04 | 上海航天设备制造总厂 | Controllable damper testing device |
| CN106052982B (en) * | 2016-05-19 | 2018-10-26 | 上海航天控制技术研究所 | The Complex modes of viscoelastic damper for solar array vibration damping test system |
| CN108709683B (en) * | 2018-05-25 | 2020-06-16 | 哈尔滨工业大学 | Flexible torque sensor dynamic test platform for modular joints |
| CN109163830A (en) * | 2018-10-23 | 2019-01-08 | 北京国华恒源科技开发有限公司 | A kind of damper hysteresis loop test experience platform using hollow gear structure |
| CN110174248A (en) * | 2019-01-29 | 2019-08-27 | 北京机电工程研究所 | Big magnitude isolation damper damping capacity verification method and the test tool for it |
| CN110979733A (en) * | 2019-12-11 | 2020-04-10 | 兰州飞行控制有限责任公司 | Rotary damper testing device and method |
| CN113224711B (en) * | 2021-05-26 | 2022-04-22 | 山东瑞能新能源有限公司 | Spacer with damping automatically adjusted |
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2009
- 2009-11-05 CN CN 200910210675 patent/CN101699249B/en active Active
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| CN101699249A (en) | 2010-04-28 |
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