CN104613047A - Leakage-proof pressure-bearing hydraulic cylinder - Google Patents
Leakage-proof pressure-bearing hydraulic cylinder Download PDFInfo
- Publication number
- CN104613047A CN104613047A CN201310541650.2A CN201310541650A CN104613047A CN 104613047 A CN104613047 A CN 104613047A CN 201310541650 A CN201310541650 A CN 201310541650A CN 104613047 A CN104613047 A CN 104613047A
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder
- pressure
- sealing rings
- coaxially
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
- F15B15/1452—Piston sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
Abstract
The invention relates to a leakage-proof pressure-bearing hydraulic cylinder which comprises a left cylinder cover, a right cylinder cover, a cylinder drum, a cylinder rod, a piston and pressure bearing pieces. The cylinder drum is coaxially and fixedly arranged between the left cylinder cover and the right cylinder cover. The piston slides in the cylinder drum coaxially. The pressure bearing pieces are symmetrically arranged on the front radial face and the rear radial face of the piston respectively. The pressure bearing pieces are coaxially and fixedly arranged on the piston through clamping rings. Seals are coaxially arranged between the pressure bearing pieces and the radial faces of the piston. The leakage-proof pressure-bearing hydraulic cylinder is characterized in that two identical sealing rings are embedded in the portions, between the piston and the inner walls of the cylinder drum, of the cylindrical surface of the piston respectively, the sealing rings are groove type sealing rings, and the opening portions of the two groove type sealing rings are communicated with oil cavities formed in two sides respectively through an oil duct. The groove type sealing rings are adopted by the axial sealing rings of the hydraulic cylinder, and the two groove type sealing rings are communicated with the left oil cavity and the right oil cavity respectively, so that the sealing rings are expanded along with the changes of pressure, and the sealing performance is improved.
Description
Technical field
The invention belongs to hydraulic machinery field, relate to oil hydraulic cylinder, especially a kind of anti-leak supporting roll cylinder pressure.
Background technique
Supporting roll cylinder pressure is applied in weight occasion, therefore needs to install pressure-bearing plate additional on piston.Due to the effect of high pressure, usually require that seal degree is higher.But existing sealing adopts seal ring usually, and also adopts seal ring between pressure-bearing plate and piston, the effect of high pressure is easy to flattened by seal ring and cause leaking.Therefore look for a kind of can under high pressure continue keep sealing and the sealing configuration of Leakage prevention is very important.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, a kind of anti-leak supporting roll cylinder pressure is provided.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of anti-leak supporting roll cylinder pressure, comprise left cylinder cap, right cylinder cap, cylinder barrel, cylinder bar, piston and pressure-bearing plate, coaxially cylinder barrel is fixedly mounted with between left cylinder cap and right cylinder cap, coaxial sliding and running piston in cylinder barrel, on the front and back diametric plane of piston, symmetry installs pressure-bearing plate respectively, this pressure-bearing plate is coaxially packed on piston by snap ring, sealing is coaxially installed with between pressure-bearing plate and piston diametric plane, it is characterized in that: the piston cylinder between piston with inner wall of cylinder is embedded with respectively two identical seal rings, sealing circle is channel gasket, the opening part of these two channel gaskets is communicated with the oil pocket of both sides respectively by oil duct.
And that installs between pressure-bearing plate and piston diametric plane is sealed into seal ring piece, sealing ring plate is hard sealing.
Advantage of the present invention and beneficial effect are:
1, this oil hydraulic cylinder installs diaphragm seal between pressure-bearing plate and piston; effectively can prevent the leakage problem that seal ring produces in gap because height is pressed into thus; sealing circle can adopt hard sealing ring, to improve sealability, and plays a protective role to axial sealing ring.
2, the axial sealing ring of this oil hydraulic cylinder adopts channel gasket, and this channel gasket is two and is communicated with two, left and right oil pocket, thus can Expansion sealing circle with pressure change, raising sealability.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present invention;
Fig. 2 is the A portion structure enlarged diagram of Fig. 1.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of anti-leak supporting roll cylinder pressure, comprise left cylinder cap 1, right cylinder cap 9, cylinder barrel 3, cylinder bar 2, piston 5 and pressure-bearing plate 7, between left cylinder cap and right cylinder cap, be coaxially fixedly mounted with cylinder barrel, coaxial sliding and running piston in cylinder barrel, this piston and cylinder bar are coaxially integrally made; On the front and back diametric plane of piston, symmetry installs pressure-bearing plate respectively, and this pressure-bearing plate is coaxially packed on piston by snap ring 8, is coaxially installed with sealing 6 between pressure-bearing plate and piston diametric plane.
Innovative point of the present invention is:
That installs between pressure-bearing plate and piston diametric plane is sealed into seal ring piece, and sealing ring plate is hard sealing, can bear higher pressure and indeformable.
Piston cylinder between piston with inner wall of cylinder is embedded with respectively two identical seal rings 4, sealing circle is channel gasket, the opening part of these two channel gaskets is communicated with the oil pocket of both sides respectively by oil duct 10, realize the pressure balance in seal ring and both sides oil pocket thus, when pressure is larger, Expansion sealing circle can be propped up, improve sealing effect, Leakage prevention.
Claims (2)
1. an anti-leak supporting roll cylinder pressure, comprise left cylinder cap, right cylinder cap, cylinder barrel, cylinder bar, piston and pressure-bearing plate, coaxially cylinder barrel is fixedly mounted with between left cylinder cap and right cylinder cap, coaxial sliding and running piston in cylinder barrel, on the front and back diametric plane of piston, symmetry installs pressure-bearing plate respectively, this pressure-bearing plate is coaxially packed on piston by snap ring, sealing is coaxially installed with between pressure-bearing plate and piston diametric plane, it is characterized in that: the piston cylinder between piston with inner wall of cylinder is embedded with respectively two identical seal rings, sealing circle is channel gasket, the opening part of these two channel gaskets is communicated with the oil pocket of both sides respectively by oil duct.
2. anti-leak supporting roll cylinder pressure according to claim 1, is characterized in that: that installs between pressure-bearing plate and piston diametric plane is sealed into seal ring piece, and sealing ring plate is hard sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310541650.2A CN104613047A (en) | 2013-11-05 | 2013-11-05 | Leakage-proof pressure-bearing hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310541650.2A CN104613047A (en) | 2013-11-05 | 2013-11-05 | Leakage-proof pressure-bearing hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104613047A true CN104613047A (en) | 2015-05-13 |
Family
ID=53147648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310541650.2A Pending CN104613047A (en) | 2013-11-05 | 2013-11-05 | Leakage-proof pressure-bearing hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104613047A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963912A (en) * | 2015-07-08 | 2015-10-07 | 武汉科技大学 | Hydraulic cylinder capable of automatically monitoring internal leakage |
| CN107012273A (en) * | 2017-06-16 | 2017-08-04 | 洪德隆 | Clay gun piston |
| CN107047707A (en) * | 2017-03-01 | 2017-08-18 | 常州市汉华厨具有限公司 | A kind of piston and sausage filler |
| CN107939771A (en) * | 2017-11-20 | 2018-04-20 | 武汉科技大学 | A kind of linear oil cylinder with self-sealing function |
| CN109760038A (en) * | 2019-01-18 | 2019-05-17 | 天津大学 | A kind of hydraulic-driven flexibility artificial-muscle |
| CN111637263A (en) * | 2020-05-06 | 2020-09-08 | 安徽省天然气开发股份有限公司 | Prevent leaking high pressure regulator for natural gas of security |
| CN116950953A (en) * | 2023-08-03 | 2023-10-27 | 无锡市普亚机械制造有限公司 | Safety type hydraulic cylinder with leakage prevention function |
-
2013
- 2013-11-05 CN CN201310541650.2A patent/CN104613047A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963912A (en) * | 2015-07-08 | 2015-10-07 | 武汉科技大学 | Hydraulic cylinder capable of automatically monitoring internal leakage |
| CN107047707A (en) * | 2017-03-01 | 2017-08-18 | 常州市汉华厨具有限公司 | A kind of piston and sausage filler |
| CN107012273A (en) * | 2017-06-16 | 2017-08-04 | 洪德隆 | Clay gun piston |
| CN107939771A (en) * | 2017-11-20 | 2018-04-20 | 武汉科技大学 | A kind of linear oil cylinder with self-sealing function |
| CN109760038A (en) * | 2019-01-18 | 2019-05-17 | 天津大学 | A kind of hydraulic-driven flexibility artificial-muscle |
| CN111637263A (en) * | 2020-05-06 | 2020-09-08 | 安徽省天然气开发股份有限公司 | Prevent leaking high pressure regulator for natural gas of security |
| CN111637263B (en) * | 2020-05-06 | 2021-12-24 | 安徽省天然气开发股份有限公司 | Prevent leaking high pressure regulator for natural gas of security |
| CN116950953A (en) * | 2023-08-03 | 2023-10-27 | 无锡市普亚机械制造有限公司 | Safety type hydraulic cylinder with leakage prevention function |
| CN116950953B (en) * | 2023-08-03 | 2024-03-22 | 李振中 | Safety type hydraulic cylinder with leakage prevention function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150513 |