CN204664052U - A kind of dither static pressure supporting cylinder - Google Patents
A kind of dither static pressure supporting cylinder Download PDFInfo
- Publication number
- CN204664052U CN204664052U CN201520386273.4U CN201520386273U CN204664052U CN 204664052 U CN204664052 U CN 204664052U CN 201520386273 U CN201520386273 U CN 201520386273U CN 204664052 U CN204664052 U CN 204664052U
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- CN
- China
- Prior art keywords
- piston rod
- end cap
- cylinder body
- static pressure
- right end
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- Expired - Fee Related
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Abstract
The utility model provides a kind of dither static pressure supporting cylinder, comprise cylinder body and piston rod, what described piston rod can be done to move back and forth under the effect of hydraulic oil in cylinder body is arranged in cylinder body, the two ends of described cylinder body are separately installed with left end cap and right end cap, described left end cap is provided with the displacement transducer measuring piston rod position, multiple damping hole making to be formed between piston rod and cylinder body static pressure support is along the circumferential direction provided with outside the left end of described piston rod, the inner side of described right end cap is along the circumferential direction also provided with multiple damping hole making to be formed between piston rod and right end cap static pressure support.The utility model does not establish seal ring between piston rod and cylinder body, reduces costs, and improves working life of oil hydraulic cylinder, the kinematic accuracy relying on the static pressure formed between piston rod and cylinder body and right end cap to support to improve oil hydraulic cylinder to export.
Description
Technical field
The utility model relates to a kind of oil hydraulic cylinder, relates to a kind of dither static pressure supporting cylinder.
Background technique
At present, vibrating hydraulic cylinder has been widely used in various industrial production, and existing vibrating hydraulic cylinder, owing to adopting seal ring between piston rod and cylinder body, adds cost; Two be seal ring in the course of the work easily wearing and tearing and aging, cause oil hydraulic cylinder leakage of oil; Three is that the kinematic accuracy that oil hydraulic cylinder exports is not high.And because of design itself defect, often there is system response time slow, the shortcoming that vibration frequency is low and amplitude is large, and the hydraulic vibration high frequency to some client's particular requirement, the requirement of little amplitude is difficult to realize.
Summary of the invention
The utility model provide a kind ofly to reduce costs, the dither static pressure supporting cylinder of kinematic accuracy that working life of improving oil hydraulic cylinder and oil hydraulic cylinder export.
The technical solution adopted in the utility model is:
A kind of dither static pressure supporting cylinder, comprise cylinder body and piston rod, what described piston rod can be done to move back and forth under the effect of hydraulic oil in cylinder body is arranged in cylinder body, the two ends of described cylinder body are separately installed with left end cap and right end cap, described left end cap is provided with the displacement transducer measuring piston rod position, it is characterized in that: outside the left end of described piston rod, be along the circumferential direction provided with multiple damping hole making to be formed between piston rod and cylinder body static pressure support, the inner side of described right end cap is along the circumferential direction also provided with multiple damping hole making to be formed between piston rod and right end cap static pressure support.The utility model does not establish seal ring between piston rod and cylinder body, reduces costs, and improves working life of oil hydraulic cylinder, the kinematic accuracy relying on the static pressure formed between piston rod and cylinder body and right end cap to support to improve oil hydraulic cylinder to export.
Further, described piston rod is the piston rod of a hollow, alleviates the weight of piston rod.
Further, described left end cap and be equipped with O RunddichtringO between right end cap and cylinder body, ensures sealing, prevents leakage of oil.
Further, be provided with this between the front end of described right end cap and piston rod specially to seal.Si Te envelope has the advantages such as frictional force is low, nothing is creeped, power is little, high pressure resistant, groove structure is simple, can not affect the kinematic accuracy that oil hydraulic cylinder exports.
Further, the sensor magnet ring of institute's displacement sensors is arranged on piston rod left part, and the bar that moves on it is located in the sleeve pipe that is arranged in piston rod.
The beneficial effects of the utility model: reduce costs, improve the working life of oil hydraulic cylinder and the kinematic accuracy of oil hydraulic cylinder output.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is further described, but the utility model is not confined to these embodiments.One skilled in the art would recognize that the utility model covers all alternatives, improvement project and the equivalents that may comprise in Claims scope.
With reference to Fig. 1, a kind of dither static pressure supporting cylinder, comprise cylinder body 1 and piston rod 2, what described piston rod 2 can be done to move back and forth under the effect of hydraulic oil in cylinder body 1 is arranged in cylinder body 1, the two ends of described cylinder body 1 are separately installed with left end cap 3 and right end cap 4, described left end cap 3 is provided with the displacement transducer 5 measuring piston rod 2 position, multiple damping hole 6 making to be formed between piston rod 2 and cylinder body 1 static pressure and support along the circumferential direction is provided with outside the left end of described piston rod 2, the inner side of described right end cap 4 is along the circumferential direction also provided with multiple damping hole 6 making to be formed between piston rod 2 and right end cap 4 static pressure and support.The utility model does not establish seal ring between piston rod 2 and cylinder body 1, reduces costs, and improves working life of oil hydraulic cylinder, the kinematic accuracy relying on the static pressure formed between piston rod 2 and cylinder body 1 and right end cap 4 to support to improve oil hydraulic cylinder to export.
Piston rod 2 described in the present embodiment is piston rods 2 of a hollow, alleviates the weight of piston rod 2.
Left end cap 3 described in the present embodiment and be equipped with O RunddichtringO between right end cap 4 and cylinder body 1, ensures sealing, prevents leakage of oil.
Be provided with this spy between the front end of right end cap 4 described in the present embodiment and piston rod 2 and seal 7.Si Te envelope 7 has the advantages such as frictional force is low, nothing is creeped, power is little, high pressure resistant, groove structure is simple, can not affect the kinematic accuracy that oil hydraulic cylinder exports.
The sensor magnet ring 9 of the present embodiment institute displacement sensors 5 is arranged on piston rod 2 left part, and the bar that moves on it is located in the sleeve pipe 8 that is arranged in piston rod 2.
Piston rod 2 of the present utility model moves back and forth under the effect of hydraulic oil in cylinder body 1, in order to alleviate the weight of piston rod, it is processed into the state of hollow, the left end of piston rod 2 is along the circumferential direction processed with 6 damping holes simultaneously, and these damping holes make to form static pressure between piston rod 2 and cylinder body 1 and support.Right end cap 4 has along the circumferential direction also opened 6 damping holes simultaneously, makes piston rod 2 also form static pressure with right end cap 4 in movement process and supports.The function of displacement transducer is the position measurement of piston rod out.
Claims (5)
1. a dither static pressure supporting cylinder, comprise cylinder body and piston rod, what described piston rod can be done to move back and forth under the effect of hydraulic oil in cylinder body is arranged in cylinder body, the two ends of described cylinder body are separately installed with left end cap and right end cap, described left end cap is provided with the displacement transducer measuring piston rod position, it is characterized in that: outside the left end of described piston rod, be along the circumferential direction provided with multiple damping hole making to be formed between piston rod and cylinder body static pressure support, the inner side of described right end cap is along the circumferential direction also provided with multiple damping hole making to be formed between piston rod and right end cap static pressure support.
2. a kind of dither static pressure supporting cylinder as claimed in claim 1, is characterized in that: described piston rod is the piston rod of a hollow.
3. a kind of dither static pressure supporting cylinder as claimed in claim 1, is characterized in that: described left end cap and be equipped with O RunddichtringO between right end cap and cylinder body.
4. a kind of dither static pressure supporting cylinder as claimed in claim 1, is characterized in that: be provided with this spy between the front end of described right end cap and piston rod and seal.
5. a kind of dither static pressure supporting cylinder as described in one of claim 1 ~ 4, is characterized in that: the sensor magnet ring of institute's displacement sensors is arranged on piston rod left part, and the bar that moves on it is located in the sleeve pipe that is arranged in piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520386273.4U CN204664052U (en) | 2015-06-05 | 2015-06-05 | A kind of dither static pressure supporting cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520386273.4U CN204664052U (en) | 2015-06-05 | 2015-06-05 | A kind of dither static pressure supporting cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204664052U true CN204664052U (en) | 2015-09-23 |
Family
ID=54134439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520386273.4U Expired - Fee Related CN204664052U (en) | 2015-06-05 | 2015-06-05 | A kind of dither static pressure supporting cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204664052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855651A (en) * | 2019-11-12 | 2021-05-28 | 上海朝田实业股份有限公司 | High-precision hydraulic cylinder |
-
2015
- 2015-06-05 CN CN201520386273.4U patent/CN204664052U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855651A (en) * | 2019-11-12 | 2021-05-28 | 上海朝田实业股份有限公司 | High-precision hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20180605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |