CN203614651U - Hydraulic damper fatigue test piece - Google Patents
Hydraulic damper fatigue test piece Download PDFInfo
- Publication number
- CN203614651U CN203614651U CN201320792293.2U CN201320792293U CN203614651U CN 203614651 U CN203614651 U CN 203614651U CN 201320792293 U CN201320792293 U CN 201320792293U CN 203614651 U CN203614651 U CN 203614651U
- Authority
- CN
- China
- Prior art keywords
- piston
- fatigue test
- test piece
- cavity
- hydraulic damper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009661 fatigue test Methods 0.000 title claims abstract description 12
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 11
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 11
- 229920001194 natural rubber Polymers 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 229920001971 elastomer Polymers 0.000 description 4
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model provides a hydraulic damper fatigue test piece which can simulate the actual force transmission path of the load of a damper, meet the requirement of checking accuracy and avoid the problem of internal seal failure. The hydraulic damper fatigue test piece comprises an outer cylinder, an end cover and a piston body with a piston rod, the outer cylinder is of a barrel-shaped structure with one open end, the end cover covers the opening of the outer cylinder to form a sealed cavity, the piston body with the piston rod is arranged in the sealed cavity, the sealed cavity is divided into a right piston cavity and a left piston cavity, the piston rod penetrates the end cover and extends out of the outer cylinder, and the right piston cavity and the left piston cavity are respectively filled with natural rubber. The problem of seal failure is avoided.
Description
Technical field
The utility model belongs to mechanical designing technique, relates to a kind of hydraulic damper fatigue test piece.
Background technique
The fatigue test of existing helicopter hydraulic damper structural member exists load transmission can not simulate the actual power transmission route of damper load, examines not accurate enough problem; Or for fatigue load, the problem that exists inner sealing easily to lose efficacy.Above two existing fatigue experimental devices of problem can not solve simultaneously.
Model utility content
The technical problems to be solved in the utility model: a kind of hydraulic damper fatigue test piece is provided, both can have simulated the actual power transmission route of damper load, meet examination accuracy requirement, do not have again inner sealing Problem of Failure.
The technical solution of the utility model: a kind of hydraulic damper fatigue test piece, comprising:
Urceolus, the piston only with piston rod, end cap, wherein urceolus is the barrel shaped structure of an end opening, end cap covers at the opening of urceolus and forms airtight cavity, be located in described airtight cavity with the piston only of piston rod, described airtight cavity is divided into the right chamber of piston and the left chamber of piston, piston rod runs through end cap and stretches out urceolus, fills respectively full natural rubber in the right chamber of piston and the left chamber of piston.
The beneficial effects of the utility model: the utility model is filled in the right chamber of piston and the left chamber of piston by natural rubber, in the time doing fatigue test, the extruding force of piston is delivered on urceolus and end cap by natural rubber, it is consistent with the actual power transmission route of damper load in the time that simulation load transmits, in addition, natural rubber is solid, can as liquid, not leak, do not need to seal, so there is not seal failure problem yet.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below the utility model is described in further details.
As shown in Figure 1, the utility model is a kind of hydraulic damper fatigue test piece, comprising:
Urceolus 2, the piston only 4 with piston rod 1, end cap 6, wherein urceolus 2 is the barrel shaped structure of an end opening, end cap 6 covers at the opening of urceolus 2 and forms airtight cavity, be located in described airtight cavity with the piston only 4 of piston rod 1, described airtight cavity is divided into the right chamber 5 of piston and the left chamber 3 of piston, piston rod 1 runs through end cap 6 and stretches out urceolus 2, fills respectively full natural rubber in the right chamber 5 of piston and the left chamber 3 of piston.
Natural rubber is sulfidization molding in cavity.When test, when damper bears tension load, the rubber in the right chamber 5 of piston is pressed in the right side of piston only 4, and the rubber in the right chamber 5 of piston is passed to load outer tube wall and the end cap 6 in the right chamber 5 of piston by surperficial hydrostatic pressure; When damper bears compressive load, the rubber in the left chamber 3 of piston is pressed in the left side of piston only 4, and the rubber in the left chamber 3 of piston is passed to load outer tube wall and the urceolus end face in the left chamber 3 of piston by surperficial hydrostatic pressure.
The utility model is filled in the right chamber of piston and the left chamber of piston by natural rubber, in the time doing fatigue test, the extruding force of piston is delivered on urceolus and end cap by natural rubber, it is consistent with the actual power transmission route of damper load in the time that simulation load transmits, in addition, natural rubber is solid, can as liquid, not leak, do not need to seal, so there is not seal failure problem yet.
Claims (1)
1. a hydraulic damper fatigue test piece, is characterized in that, comprising:
Urceolus, the piston only with piston rod, end cap, wherein urceolus is the barrel shaped structure of an end opening, end cap covers at the opening of urceolus and forms airtight cavity, be located in described airtight cavity with the piston only of piston rod, described airtight cavity is divided into the right chamber of piston and the left chamber of piston, piston rod runs through end cap and stretches out urceolus, fills respectively full natural rubber in the right chamber of piston and the left chamber of piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320792293.2U CN203614651U (en) | 2013-12-04 | 2013-12-04 | Hydraulic damper fatigue test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320792293.2U CN203614651U (en) | 2013-12-04 | 2013-12-04 | Hydraulic damper fatigue test piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614651U true CN203614651U (en) | 2014-05-28 |
Family
ID=50767300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320792293.2U Expired - Lifetime CN203614651U (en) | 2013-12-04 | 2013-12-04 | Hydraulic damper fatigue test piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614651U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323572A (en) * | 2015-06-19 | 2017-01-11 | 北京物资学院 | Annular damping parts dynamic characteristic test vibration table device |
| CN111929427A (en) * | 2020-07-01 | 2020-11-13 | 中国核电工程有限公司 | Rubber expansion joint performance test verification method |
-
2013
- 2013-12-04 CN CN201320792293.2U patent/CN203614651U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323572A (en) * | 2015-06-19 | 2017-01-11 | 北京物资学院 | Annular damping parts dynamic characteristic test vibration table device |
| CN106323572B (en) * | 2015-06-19 | 2018-11-09 | 北京物资学院 | A kind of cyclic annular damping part dynamic characteristic test vibration platform apparatus |
| CN111929427A (en) * | 2020-07-01 | 2020-11-13 | 中国核电工程有限公司 | Rubber expansion joint performance test verification method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |