CN205423395U - Sealing load adjustable hydraulic seal piston device - Google Patents
Sealing load adjustable hydraulic seal piston device Download PDFInfo
- Publication number
- CN205423395U CN205423395U CN201620106043.2U CN201620106043U CN205423395U CN 205423395 U CN205423395 U CN 205423395U CN 201620106043 U CN201620106043 U CN 201620106043U CN 205423395 U CN205423395 U CN 205423395U
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- China
- Prior art keywords
- piston
- air bag
- gasbag
- upper half
- half piston
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- Expired - Fee Related
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Abstract
The utility model provides a sealing load adjustable hydraulic seal piston device, relates to piston technical field, including first piston, piston ejector pin, second piston, sealed inner circle gasbag, sealed outer lane wearing layer and gasbag intake pipe, the fixed upper portion that sets up first piston of piston ejector pin, be provided with gasbag trachea pipeline and the gasbag trachea duct extension downside to first piston in the piston ejector pin, the upper portion of second piston is provided with the boss, the avris of boss is provided with the gasbag trachea groove that extends to the intermediate position, first piston and second piston fixed connection, sealed inner circle airbag sleeve establishes in the boss outside, the outside at sealed inner circle gasbag is established to sealed outer lane wearing layer cover, gasbag intake -tube connection is at the inboard of sealed inner circle gasbag and by outer distolateral to the piston ejector pin of gasbag trachea groove and gasbag trachea duct extension. The utility model discloses sealed outer lane wearing layer pressure is adjustable, has the supply effect to sealing the outer lane wearing layer, has the oil spilling of preventing, extension piston life.
Description
Technical field:
This utility model relates to piston technical field, specifically a kind of seal pressure adjustable hydraulic packing piston apparatus.
Background technology:
Existing hydraulic piston seal circle is when rubbing with cylinder wall activity, reach the regular hour, sealing ring and inboard wall of cylinder block all can have abrasion in various degree, cause sealing ring that the pressure of inboard wall of cylinder block can be gradually reduced, ultimately result in sealing ring poorly sealed thus produce oil spilling phenomenon, if extending hydraulic pressure on the basis of the most original service life there is significant meaning.
Utility model content:
Technical problem to be solved in the utility model is to provide many seal pressures adjustable hydraulic packing piston apparatus of a kind of sealed outer ring wearing layer pressure adjustable.
Technical problem to be solved in the utility model realizes by the following technical solutions:
nullA kind of seal pressure adjustable hydraulic packing piston apparatus，It is characterized in that: include upper half piston、Piston mandril、Lower half piston、Seal inner ring air bag、Sealed outer ring wearing layer and air bag air inlet pipe，Described piston mandril is fixedly installed the top of upper half piston，It is provided with air bag tracheal tube in piston mandril and air bag tracheal tube extends to the downside of upper half piston，The top of described lower half piston is provided with boss，The avris of described boss is provided with the air bag trachea groove extending to centre position，Upper half piston fixes be connected fixing with lower half piston by screw，Described sealing inner ring Air sac cover is located at outside boss and between upper half piston and lower half piston，Described sealed outer ring wearing layer is set in and seals the outside of inner ring air bag and between upper half piston and lower half piston，Described air bag air inlet pipe is connected to seal the inner side of inner ring air bag and extended to the outer side of piston mandril by air bag trachea groove and air bag tracheal tube.
Described piston mandril and upper half piston are integral type structure.
Being respectively arranged with fixing hole on described boss and upper half piston, described lower half piston is fixedly installed on the downside of upper half piston by fixing hole and screw.
Sealed outer ring wearing layer in this utility model once has more abrasion, this utility model can be inflated punching press by air bag air inlet pipe to sealing inner ring air bag, make to seal inner ring air bag to expand outwardly, thus force sealed outer ring wearing layer to expand outwardly, thus play sealed outer ring wearing layer abrasion makeup function, cause sealed outer ring wearing layer to remain relatively reasonable position for the pressure of inboard wall of cylinder block.It is thus possible to extend the piston service life of hydraulic cylinder.
The beneficial effects of the utility model are: this utility model sealed outer ring wearing layer pressure adjustable, sealed outer ring wearing layer is had alimentation, has and prevent oil spilling, extend piston service life.
Accompanying drawing illustrates:
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model upper half piston and piston mandril and the structural representation of screw.
Fig. 3 is the structural representation of this utility model lower half piston.
Fig. 4 is this utility model sealed outer ring wearing layer and sealing inner ring air bag fit structure schematic diagram.
Detailed description of the invention:
For the technological means making this utility model realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with being specifically illustrating, this utility model is expanded on further.
nullSuch as Fig. 1、2、Shown in 3 and 4，A kind of seal pressure adjustable hydraulic packing piston apparatus，Including upper half piston 1、Piston mandril 2、Lower half piston 3、Seal inner ring air bag 4、Sealed outer ring wearing layer 5 and air bag air inlet pipe 6，Piston mandril 2 is fixedly installed the top of upper half piston 1，It is provided with air bag tracheal tube 7 in piston mandril 2 and air bag tracheal tube 7 extends to the downside of upper half piston 1，The top of lower half piston 3 is provided with boss 8，The avris of boss 8 is provided with the air bag trachea groove 9 extending to centre position，It is respectively arranged with fixing hole 10 on boss 8 and upper half piston 1，Lower half piston 3 is fixedly installed on the downside of upper half piston 1 by fixing hole 10 and screw 11，Seal inner ring air bag 4 to be set in outside boss 8 and between upper half piston 1 and lower half piston 3，Sealed outer ring wearing layer 5 is set in and seals the outside of inner ring air bag 4 and between upper half piston 1 and lower half piston 3，Air bag air inlet pipe 6 is connected to seal the inner side of inner ring air bag 4 and extended to the outer side of piston mandril 2 by air bag trachea groove 9 and air bag tracheal tube 7.Piston mandril 2 and upper half piston 1 are integral type structure.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description, principle of the present utility model is simply described; on the premise of without departing from this utility model spirit and scope; this utility model also has various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (3)
- null1. a seal pressure adjustable hydraulic packing piston apparatus，It is characterized in that: include upper half piston、Piston mandril、Lower half piston、Seal inner ring air bag、Sealed outer ring wearing layer and air bag air inlet pipe，Described piston mandril is fixedly installed the top of upper half piston，It is provided with air bag tracheal tube in piston mandril and air bag tracheal tube extends to the downside of upper half piston，The top of described lower half piston is provided with boss，The avris of described boss is provided with the air bag trachea groove extending to centre position，Upper half piston fixes be connected fixing with lower half piston by screw，Described sealing inner ring Air sac cover is located at outside boss and between upper half piston and lower half piston，Described sealed outer ring wearing layer is set in and seals the outside of inner ring air bag and between upper half piston and lower half piston，Described air bag air inlet pipe is connected to seal the inner side of inner ring air bag and extended to the outer side of piston mandril by air bag trachea groove and air bag tracheal tube.
- A kind of seal pressure adjustable hydraulic packing piston apparatus the most according to claim 1, it is characterised in that: described piston mandril and upper half piston are integral type structure.
- A kind of seal pressure adjustable hydraulic packing piston apparatus the most according to claim 1, it is characterized in that: be respectively arranged with fixing hole on described boss and upper half piston, described lower half piston is fixedly installed on the downside of upper half piston by fixing hole and screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620106043.2U CN205423395U (en) | 2016-01-29 | 2016-01-29 | Sealing load adjustable hydraulic seal piston device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620106043.2U CN205423395U (en) | 2016-01-29 | 2016-01-29 | Sealing load adjustable hydraulic seal piston device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423395U true CN205423395U (en) | 2016-08-03 |
Family
ID=56539847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620106043.2U Expired - Fee Related CN205423395U (en) | 2016-01-29 | 2016-01-29 | Sealing load adjustable hydraulic seal piston device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423395U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587713A (en) * | 2016-01-29 | 2016-05-18 | 管中林 | Sealing-pressure-adjustable hydraulic seal piston device |
| CN112664506A (en) * | 2020-12-24 | 2021-04-16 | 江苏正峰液压科技有限公司 | Hydraulic oil cylinder |
| CN114235589A (en) * | 2021-12-08 | 2022-03-25 | 南通市建筑科学研究院有限公司 | Clamp of hydrostatic testing machine for pipes |
-
2016
- 2016-01-29 CN CN201620106043.2U patent/CN205423395U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587713A (en) * | 2016-01-29 | 2016-05-18 | 管中林 | Sealing-pressure-adjustable hydraulic seal piston device |
| CN112664506A (en) * | 2020-12-24 | 2021-04-16 | 江苏正峰液压科技有限公司 | Hydraulic oil cylinder |
| CN112664506B (en) * | 2020-12-24 | 2022-12-13 | 江苏正峰液压科技有限公司 | Hydraulic oil cylinder |
| CN114235589A (en) * | 2021-12-08 | 2022-03-25 | 南通市建筑科学研究院有限公司 | Clamp of hydrostatic testing machine for pipes |
| CN114235589B (en) * | 2021-12-08 | 2024-04-16 | 南通市建筑科学研究院有限公司 | Clamp of pipe hydrostatic testing machine |
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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: 20160803 Termination date: 20170129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |