CN101446532A - Servo valve armature component suspension stiffness testing device - Google Patents
Servo valve armature component suspension stiffness testing device Download PDFInfo
- Publication number
- CN101446532A CN101446532A CNA2008102074150A CN200810207415A CN101446532A CN 101446532 A CN101446532 A CN 101446532A CN A2008102074150 A CNA2008102074150 A CN A2008102074150A CN 200810207415 A CN200810207415 A CN 200810207415A CN 101446532 A CN101446532 A CN 101446532A
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- China
- Prior art keywords
- servo valve
- armature component
- testing device
- valve armature
- suspension stiffness
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Abstract
The invention relates to a servo valve armature component suspension stiffness testing device. The invention is characterized in that the device consists of a fixed plate (1), a bracket (2) and an installation plate (3); a servo valve armature component (7) is installed and clamped by the installation plate (3); a crown block (8) is installed at the side of the bracket (2); a pull rope (4) rounds the crown block (8) and is hung with a weight (3). The servo valve armature component suspension stiffness testing device uses the balance of a force system to measure whether the stiffness of an armature component meets the requirement, and the servo valve armature component suspension stiffness testing device is convenient for use and has high test efficiency. The servo valve armature component suspension stiffness testing device not only can be used for testing the stiffness, but also can be used in the installation of electro-hydraulic servo valve prestage null shift test.
Description
Technical field
The invention belongs to servo-valve performance test field, particularly relate to a kind of servo valve armature component performance testing device.
Background technology
Electrohydraulic servo valve has experienced 50 years in the development of international professional domain, and the occasion of application also more and more widely.Yet the research of servo-valve and manufacturing also are in a relatively backward state at home, the combine and assemble aspect of part, and technical merit is also very big with external gap.Armature component requires the alloy property of armature, pipe spring, feedback rod all to compare strictness, particularly rigidity and intensity etc. as a vitals of electrohydraulic servo valve torque-motor.Its usability that some carelessness can the whole electrohydraulic servo valve of influence, so the rigidity of hanging of armature component just seems and has been even more important.Rigidity, i.e. elastic modulus E=σ in the mechanics of materials/ε
σ in the formula---the stress (MPa) in regime of elastic deformation
ε---the strain that under stress, produces, i.e. relative deformation.
The physical significance that can find out it from formula is meant that metal material produces the required stress of relative deformation of unit elasticity.It is exosyndrome material opposing elastic deformability's a mechanical performance index, and existing material stiffness test is many to be tested with special puller system, very inconvenience, and testing efficiency is low, the cost height.
Summary of the invention
Technical matters to be solved by this invention provides a kind of servo valve armature component suspension stiffness testing device, to solve the low defective of testing efficiency in the prior art.
A kind of servo valve armature component suspension stiffness testing device, constitute by fixed head (1), support (2) and installing plate (3), servo valve armature component (7) is by installing plate (3) clamping, and fixed pulley (8) is equipped with on support (2) limit, and stay cord (4) is walked around fixed pulley (8) and hung counterweight (3).
Described support also is equipped with microscope on (2).
Beneficial effect
Whether the rigidity that the present invention utilizes the balance of power system to measure armature component meets the requirements, and simple in structure, easy to use, testing efficiency is higher, not only can be used to survey rigidity, can also be used as the installation of the drift test of electrohydraulic servo valve prestage.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in Figure 1, a kind of servo valve armature component suspension stiffness testing device is made of fixed head 1, support 2 and installing plate 3, and servo valve armature component 7 is by installing plate 3 clampings, and fixed pulley 8 is equipped with on support 2 limits, and stay cord 4 is walked around fixed pulley 8 and hung counterweight 3; On the described support 2 microscope is housed also., in the upper end of servo valve armature component 7 first test point 5 being set during test, the lower end is provided with second test point 6.
During test, what adopt is the balance of power system, stay cord 4 connects first test point 5 and second test point 6 respectively, pass through add counterweight 3 difference produce different displacements, check the rigidity of the part of surveying according to the existing standard value, because in case the product standard value of same model is determined, need observe displacement whether exceed standard for each and get final product, not need complicated calculating, can determine by microscope when special circumstances need pin-point reading, reduce the working time, improved work efficiency.
Claims (2)
1. servo valve armature component suspension stiffness testing device, it is characterized in that: constitute by fixed head (1), support (2) and installing plate (3), servo valve armature component (7) is by installing plate (3) clamping, fixed pulley (8) is equipped with on support (2) limit, and stay cord (4) is walked around fixed pulley (8) and hung counterweight (3).
2. servo valve armature component suspension stiffness testing device as claimed in claim 1 is characterized in that: described support also is equipped with microscope on (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102074150A CN101446532A (en) | 2008-12-19 | 2008-12-19 | Servo valve armature component suspension stiffness testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102074150A CN101446532A (en) | 2008-12-19 | 2008-12-19 | Servo valve armature component suspension stiffness testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101446532A true CN101446532A (en) | 2009-06-03 |
Family
ID=40742315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102074150A Pending CN101446532A (en) | 2008-12-19 | 2008-12-19 | Servo valve armature component suspension stiffness testing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN101446532A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614254A (en) * | 2015-01-22 | 2015-05-13 | 广东工业大学 | Micropositioner rigidity measuring device and rigidity measuring method thereof |
| CN109556811A (en) * | 2018-12-03 | 2019-04-02 | 南京航空航天大学 | A kind of big rigidity mouse cage Static stiffness test device and test method |
| CN109580139A (en) * | 2018-12-14 | 2019-04-05 | 上海航天控制技术研究所 | A kind of servo valve armature component integral stiffness test device |
| CN109668700A (en) * | 2017-10-16 | 2019-04-23 | 北京精密机电控制设备研究所 | A kind of servo valve armature component integral stiffness measuring device |
| CN110057572A (en) * | 2019-04-26 | 2019-07-26 | 安徽万荣航天设备有限公司 | A kind of servo valve armature component integral stiffness test device |
| CN111644519A (en) * | 2020-06-15 | 2020-09-11 | 上海诺玛液压系统有限公司 | Jet pipe servo valve armature component closing tool |
| CN114354175A (en) * | 2021-11-29 | 2022-04-15 | 国营芜湖机械厂 | Force characteristic measuring device and method for armature assembly of electro-hydraulic servo valve of airplane |
-
2008
- 2008-12-19 CN CNA2008102074150A patent/CN101446532A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614254A (en) * | 2015-01-22 | 2015-05-13 | 广东工业大学 | Micropositioner rigidity measuring device and rigidity measuring method thereof |
| CN104614254B (en) * | 2015-01-22 | 2018-02-02 | 广东工业大学 | A kind of micropositioner stiffness measurement device and its stiffness measurement method |
| CN109668700A (en) * | 2017-10-16 | 2019-04-23 | 北京精密机电控制设备研究所 | A kind of servo valve armature component integral stiffness measuring device |
| CN109668700B (en) * | 2017-10-16 | 2020-08-21 | 北京精密机电控制设备研究所 | Comprehensive rigidity measuring device for armature component of servo valve |
| CN109556811A (en) * | 2018-12-03 | 2019-04-02 | 南京航空航天大学 | A kind of big rigidity mouse cage Static stiffness test device and test method |
| CN109580139A (en) * | 2018-12-14 | 2019-04-05 | 上海航天控制技术研究所 | A kind of servo valve armature component integral stiffness test device |
| CN110057572A (en) * | 2019-04-26 | 2019-07-26 | 安徽万荣航天设备有限公司 | A kind of servo valve armature component integral stiffness test device |
| CN111644519A (en) * | 2020-06-15 | 2020-09-11 | 上海诺玛液压系统有限公司 | Jet pipe servo valve armature component closing tool |
| CN111644519B (en) * | 2020-06-15 | 2022-04-01 | 上海诺玛液压系统有限公司 | Jet pipe servo valve armature component closing tool |
| CN114354175A (en) * | 2021-11-29 | 2022-04-15 | 国营芜湖机械厂 | Force characteristic measuring device and method for armature assembly of electro-hydraulic servo valve of airplane |
| CN114354175B (en) * | 2021-11-29 | 2023-09-19 | 国营芜湖机械厂 | Force characteristic measuring device and method for aircraft electrohydraulic servo valve armature assembly |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090603 |