CN206290522U - Single action piston oil cylinder - Google Patents
Single action piston oil cylinder Download PDFInfo
- Publication number
- CN206290522U CN206290522U CN201620992598.1U CN201620992598U CN206290522U CN 206290522 U CN206290522 U CN 206290522U CN 201620992598 U CN201620992598 U CN 201620992598U CN 206290522 U CN206290522 U CN 206290522U
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- CN
- China
- Prior art keywords
- piston
- cylinder
- ring
- shaped
- cylinder body
- 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 - Fee Related
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Abstract
The utility model discloses a kind of single action piston oil cylinder, including cylinder body, piston rod, piston, installation front end housing and back cylinder cover, piston is arranged on piston rod rear end, piston outer ring coordinates with inboard wall of cylinder block gap, it is connected with back cylinder cover into flowline, there is the adjacent rectangular channel and T-slot for opening up on described piston outer ring, lip and the close-fitting y-shaped ring of inboard wall of cylinder block after being acted on by oil pressure are installed in rectangular channel, be provided with T-slot by y-shaped ring active force push and with the close-fitting T-shaped sealing ring of inboard wall of cylinder block.The utility model by being acted on by hydraulic fluid pressure after y-shaped ring lip be brought into close contact inboard wall of cylinder block, simultaneously under y-shaped ring thrust, outwards arch upward and be fitted close with inboard wall of cylinder block in T-shaped sealing ring outer ring, by y-shaped ring and the collective effect of T-shaped sealing ring, so as to further increase the sealing effectiveness of oil cylinder, the steady reliability of cylinder movement is realized.
Description
Technical field
The utility model is related to technical field of hydraulic pressure, especially a kind of single action piston oil cylinder.
Background technology
Hydraulic jack for lifting weight, it rises by hydraulic oil promotion, and declines then by pressure under weight
Promote, therefore be a kind of piston movement of single effect.Due to weight rising by hydraulic coupling promote, it requires piston with
There is sealing higher between inboard wall of cylinder block, in existing structure, metallic piston ring is mainly passed through between piston and inboard wall of cylinder block
With O-ring seal combination sealing, unilateral gap is larger between piston and inboard wall of cylinder block, and metallic piston ring prolongs with use time
Long, gap also increases therewith between inboard wall of cylinder block after the generation abrasion of ring outer ring, and O-ring seal resists voltage resistance poor, periphery
Easy to wear, above-mentioned factor synthesis causes the decline of oil cylinder piston sealing property, and when promoting weight to rise, thrust is not enough, seriously
When can produce weight drop danger.
Utility model content
The technical problems to be solved in the utility model is：Overcome deficiency in the prior art, there is provided one kind can be carried further
Sealing effectiveness between piston high and inboard wall of cylinder block, the single action piston oil cylinder for ensuring oil cylinder performance.
The utility model solves the technical scheme that its technical problem used：A kind of single action piston oil cylinder, including cylinder
Body, piston rod, piston, the front end housing installed in cylinder body front end and the back cylinder cover installed in rear end of the cylinder block, piston is arranged on lives
Stopper rod rear end, piston outer ring coordinates with inboard wall of cylinder block gap, is connected with back cylinder cover into flowline, has on described piston outer ring
There is the adjacent rectangular channel and T-slot for opening up, lip and the close-fitting Y of inboard wall of cylinder block after being acted on by oil pressure are installed in rectangular channel
Shape sealing ring, be provided with T-slot by y-shaped ring active force push and with the close-fitting T-shaped sealing ring of inboard wall of cylinder block.
Further, the unilateral gap between described piston outer ring and inboard wall of cylinder block is 0.1~0.3mm.
To improve wearability and fatigue resistance, the material of described T-shaped sealing ring is polyformaldehyde.
To ensure piston movement safety, prevent accident and clash into front end housing, described piston is towards front end housing direction
Front end face be provided with control piston stroke limited block.
The beneficial effects of the utility model are：The utility model by being acted on by hydraulic fluid pressure after y-shaped ring lip
While be brought into close contact inboard wall of cylinder block, while under y-shaped ring thrust, T-shaped sealing ring outer ring outwards arch upward and with cylinder body in
Wall is fitted close, by y-shaped ring and the collective effect of T-shaped sealing ring, so as to further increase the sealing effectiveness of oil cylinder,
Realize the steady reliability of cylinder movement.
Brief description of the drawings
The utility model is further illustrated with implementation method below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
The back cylinder cover 6. of 1. cylinder body, 2. piston rod, 3. piston, 4. front end housing 5. enters flowline 7.Y shape sealing rings in figure
The compression spring of 11. slide bar of 8.T shape sealing rings 9. limited block, 10. breather pipe 12.
Specific embodiment
The utility model is further described presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram only to show
Meaning mode illustrates basic structure of the present utility model, therefore it only shows the composition relevant with the utility model.
A kind of single action piston oil cylinder as shown in Figure 1, including cylinder body 1, piston rod 2, piston 3, installed in the front end of cylinder body 1
Front end housing 4 and the back cylinder cover 5 installed in the rear end of cylinder body 1, piston 3 is arranged on the rear end of piston rod 2, the outer ring of piston 3 and cylinder body 1
Inwall gap coordinates, and is connected with back cylinder cover 5 into flowline 6, is additionally provided with the front end of cylinder body 1 nearby cylinder cap 4 and declined in weight
When be passed through gases at high pressure and help the breather pipe 10 of the Rapid reset of piston 3；Front end face of the described piston 3 towards the direction of front end housing 4
The limited block 9 of the control stroke of piston 3 is provided with, the limited block 9 is connected to the end of slide bar 11 that can be moved axially along piston 3,
Compression spring 12 is provided between limited block 9 and the cavity bottom surface being opened on piston 3.
On the described outer ring of piston 3 have the adjacent rectangular channel and T-slot for opening up, wherein rectangular channel be located at oil cylinder without bar
Chamber side, T-slot is close to rectangular channel, and lip and the close-fitting Y shape of inwall of cylinder body 1 after being acted on by oil pressure are provided with rectangular channel
Sealing ring 7, be provided with T-slot by the active force of y-shaped ring 7 push and with the close-fitting T-shaped sealing ring 8 of the inwall of cylinder body 1,
The material of described T-shaped sealing ring 8 is polyformaldehyde, and polyformaldehyde is a kind of engineering plastics of high comprehensive performance, therefore uses poly- first
The sealing ring that aldehyde is fabricated to have mechanical property very high, such as intensity, wearability, toughness, fatigue durability and creep resistance, because
This sealing effectiveness is more preferable.
Unilateral gap between the described outer ring of piston 3 and the inwall of cylinder body 1 is 0.1~0.3mm, and the gap is relative to original
Unilateral 0.3~0.4mm of gap in structure between the outer ring of piston 3 and the inwall of cylinder body 1, precision is higher, is more beneficial for improving piston 3
With the sealing between cylinder body 1.
The utility model is a kind of oil cylinder of one direction effect, during cylinder efficient, from the liquid for entering the entrance rodless cavity of flowline 6
Force feed promotion piston 3 is up, and piston rod 2 lifts weight, and declines and then promote the decline of piston rod 2 to reset by weight deadweight,
And acted on by hydraulic fluid pressure, the lip of y-shaped ring 7 is brought into close contact the inwall of cylinder body 1, while being made by the thrust of y-shaped ring 7
Outwards arched upward with, the outer ring of T-shaped sealing ring 8 and be fitted close with the inwall of cylinder body 1, by being total to for y-shaped ring 7 and T-shaped sealing ring 8
Same-action, so as to further increase the sealing effectiveness of oil cylinder, realizes the steady reliability of cylinder movement.
Above-mentioned implementation method only to illustrate technology design of the present utility model and feature, this skill is familiar with its object is to allow
The personage of art will appreciate that content of the present utility model and is carried out, and can not limit protection model of the present utility model with this
Enclose, all equivalent change or modifications made according to the utility model Spirit Essence should all cover in protection model of the present utility model
In enclosing.
Claims (4)
1. a kind of single action piston oil cylinder, including cylinder body (1), piston rod (2), piston (3), before cylinder body (1) front end
Cylinder cap (4) and the back cylinder cover (5) installed in cylinder body (1) rear end, installed in piston rod (2) rear end, piston (3) is outward for piston (3)
Circle coordinates with cylinder body (1) inwall gap, is connected with back cylinder cover (5) into flowline (6), it is characterized in that：Described piston (3) is outward
Have on circle and be close to the rectangular channel for opening up and T-slot, lip after being acted on by oil pressure is installed tight with cylinder body (1) inwall in rectangular channel
Leakproof fit y-shaped ring (7), is provided with tight with cylinder body (1) inwall by the pushing of y-shaped ring (7) active force in T-slot
The T-shaped sealing ring (8) of cooperation.
2. single action piston oil cylinder according to claim 1, it is characterized in that：Described piston (3) outer ring is interior with cylinder body (1)
Unilateral gap between wall is 0.1~0.3mm.
3. single action piston oil cylinder according to claim 1, it is characterized in that：The material of described T-shaped sealing ring (8) is poly-
Formaldehyde.
4. single action piston oil cylinder according to claim 1, it is characterized in that：Described piston (3) is square towards front end housing (4)
To front end face be provided with control piston (3) stroke limited block (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620992598.1U CN206290522U (en) | 2016-08-30 | 2016-08-30 | Single action piston oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620992598.1U CN206290522U (en) | 2016-08-30 | 2016-08-30 | Single action piston oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290522U true CN206290522U (en) | 2017-06-30 |
Family
ID=59095052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620992598.1U Expired - Fee Related CN206290522U (en) | 2016-08-30 | 2016-08-30 | Single action piston oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290522U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107877906A (en) * | 2017-11-30 | 2018-04-06 | 宝鸡市金盛源钛业有限公司 | Hydraulic type hydraulic press |
| CN112901589A (en) * | 2021-01-28 | 2021-06-04 | 张燕 | Main oil cylinder of hydraulic machine |
| WO2023235742A1 (en) * | 2022-06-01 | 2023-12-07 | Shell Usa, Inc. | Feedstock feeder system |
-
2016
- 2016-08-30 CN CN201620992598.1U patent/CN206290522U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107877906A (en) * | 2017-11-30 | 2018-04-06 | 宝鸡市金盛源钛业有限公司 | Hydraulic type hydraulic press |
| CN112901589A (en) * | 2021-01-28 | 2021-06-04 | 张燕 | Main oil cylinder of hydraulic machine |
| CN112901589B (en) * | 2021-01-28 | 2023-04-28 | 定襄县昊东机械制造有限公司 | Main oil cylinder of hydraulic press |
| WO2023235742A1 (en) * | 2022-06-01 | 2023-12-07 | Shell Usa, Inc. | Feedstock feeder system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170630 Termination date: 20210830 |