A compound actuator and its loading method for vibration test
A vibration test, actuating cylinder technology, applied in vibration test, fluid pressure actuation device, test of machine/structural components, etc., can solve the problems of long test time, damage of seals, wear of piston rod, etc., to reduce heat , reduce heat generation, ensure the effect of reliability
Active Publication Date: 2015-12-30
北京乐冶液压气动设备技术有限公司 +1
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the long test time required for the fatigue test, the energy consumed is very large, and the cylinder will generate a lot of heat when it works for a long time, resulting in damage to the seal and wear of the piston rod
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0020] The composite actuating cylinder provided by the present invention is a structure in which a static loading cylinder and a dynamic loading cylinder are integrated. Fig. 1(a) is a schematic cross-sectional view of the structure of the composite actuating cylinder of the present invention, as shown in Fig. 1(a), which includes a static loading cylinder 1 and a dynamic loading cylinder 2 connected coaxially. The inner chambers of the static loading cylinder 1 and the dynamic loading cylinder 2 communicate through a piston hole, and the two oil cylinders share a piston rod 3 .
[0021] The two ends of the piston rod 3 protrude from the end caps 14 and 24 of the static loading cylinder 1 and the dynamic loading cylinder 2 to the outside for connecting the test piece; the piston rod 3 is a stepped shaft, as shown in Figure 1(b), and its rough The section...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a composite actuating cylinder used for a vibration test. The composite actuating cylinder can save energy and reduce heating emission. The composite actuating cylinder comprises a static force loading cylinder and a dynamic force loading cylinder which are connected with each other coaxially, the static force loading cylinder and the dynamic force loading cylinder share a piston rod, and the two ends of the piston rod stretch out of an end cover of the static force loading cylinder and an end cover of the dynamic force loading cylinder respectively to be used for being connected with test specimens. The piston rod is a stepped shaft, a static force loading cylinder piston is arranged on a thick section, a dynamic force loading cylinder piston is arranged on a thin section, and the two pistons are arranged in the cylinder body of the static force loading cylinder and the cylinder body of the dynamic force loading cylinder respectively. The static force loading cylinder and the dynamic force loading cylinder are respectively provided with two oil holes used for oil feed and oil discharge. The effective working area of the static force loading cylinder piston is determined jointly by the size of loading static force on the test specimens and oil-supplying pressure, and the effective working area of the dynamic force loading cylinder piston is determined jointly by the size of loading alternating force on the test specimens and the oil-supplying pressure.
Description
technical field [0001] The invention relates to the technical field of material vibration fatigue tests, in particular to a composite actuator for vibration tests and a loading method thereof. Background technique [0002] In the fatigue test, it is often required to apply a constant static force to the tested workpiece first, and then superimpose an alternating force on this basis. In the prior art, a hydraulic cylinder is usually used to carry out the above test, and static force and alternating force are output by one cylinder. Due to the long test time required for the fatigue test, the energy consumed is very large, and the actuator will generate a lot of heat when it works for a long time, resulting in damage to the seal and wear of the piston rod. Contents of the invention [0003] In view of this, the present invention provides a compound actuating cylinder for vibration tests, which can save energy and reduce heat generation. [0004] The scheme is implemented l...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/14G01M7/02
Inventor 孙宝川李庆峰王军政汪首坤赵江波陈贞发陈颖高海峰殷禹魏杰
Owner 北京乐冶液压气动设备技术有限公司