CN105822621A - Sealing system for gaps between cylinder bodies and pistons - Google Patents
Sealing system for gaps between cylinder bodies and pistons Download PDFInfo
- Publication number
- CN105822621A CN105822621A CN201610357183.1A CN201610357183A CN105822621A CN 105822621 A CN105822621 A CN 105822621A CN 201610357183 A CN201610357183 A CN 201610357183A CN 105822621 A CN105822621 A CN 105822621A
- Authority
- CN
- China
- Prior art keywords
- piston
- sections
- cylinder body
- pistons
- oil
- 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
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- 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
- F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
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- 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
- F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
- F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
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- 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
- F15B15/1428—Cylinders
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- 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
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- 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
- F15B15/17—Characterised by the construction of the motor unit of the straight-cylinder type of differential-piston type
-
- 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
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a sealing system for gaps between cylinder bodies and pistons. The sealing system comprises the first cylinder body, the first piston and a first piston rod, wherein the first piston is connected with an external power device through the first piston rod. The first cylinder body is provided with two different diameter sections, and the first piston is also divided into two piston sections. The upper diameter section of the first cylinder body is separated by the two piston sections into an oil accommodating cavity which is connected with a buffer cavity through an oil in/out pipe. After adopting the structure, when passing a shoulder, high-pressure leakage oil is reflected to the oil accommodating cavity to form turbulent flow, and the leakage oil is effectively prevented from leaking downwards further; in addition, a 180-degree phase angle is formed by the first piston and the second piston, the first oil accommodating cavity and the buffer cavity, which are formed by the first piston and the corresponding cylinder body and the second piston and the corresponding cylinder body correspondingly, are mutually buffered, when the first oil accommodating cavity is compressed by the first piton, oil in the first oil accommodating cavity is pressed into the buffer cavity through the oil in/out pipe, the buffer cavity at the moment is in a volume expansion state, and the using effect is good.
Description
Technical field
The present invention relates to the working medium between a kind of cylinder body and piston and seal structure, the clearance seal system of a kind of cylinder body and piston.
Background technology
Clearance seal between conventional hydraulic cylinder body and piston completes to seal or rely on the steel sealing that the fine clearance between piston cylinder and cylinder body completes typically by arranging the sealing members such as piston ring on piston, facts have proved, no matter use which kind of sealing means above, the most all there is axial straight-line leakage gap, on the premise of identical leak cross-section is long-pending, the leak resistance of line flowing channel is minimum, thus limits high pressure or the exploitation of ultrahigh-pressure hydraulic cylinder piston system.
Summary of the invention
The technical problem to be solved in the present invention is to provide the clearance seal system of a kind of cylinder body with high-drag runner and piston.
In order to solve above-mentioned technical problem, the cylinder body of the present invention and the clearance seal system of piston, including a cylinder body, the piston arranged in a number cylinder body and the piston rod being connected on a piston, a number piston is connected with outside power set by a piston rod, a number cylinder body has two sections of different diameter segment, a number piston is divided into two sections of piston sections equally, it is respectively arranged with one section of piston section in making two sections of different-diameter sections of a cylinder body, a number cylinder body forms No. one between two sections of piston sections of a number piston holds oil pocket, hold oil pocket to be connected by a turnover oil pipe and a cushion chamber.
Also include No. two cylinder bodies, No. two pistons arranged in being arranged on No. two cylinder bodies and No. two piston rods being connected on No. two pistons, described No. two pistons are connected with outside power set by No. two piston rods, described No. two cylinder bodies have two sections of different diameter segment, described No. two pistons are divided into two sections of piston sections equally, it is respectively arranged with one section of piston section in making two sections of different-diameter sections of No. two cylinder bodies, No. two cylinder bodies are formed between two sections of piston sections of No. two pistons No. two and hold oil pockets, No. two hold oil pocket formed can and No. one hold between oil pocket cushion chamber alternately each other.
A described piston and No. two pistons are connected with same rotating shaft by drive mechanism, and are mutually 180 degree of phase angles in same rotating shaft.
Described appearance oil pocket and cushion chamber volume are equal.
After using above-mentioned structure, reducing cylinder body is formed owing to cylinder body has two sections of different diameter segment, its two sections of diameter segment faying faces meeting self-assembling formation shoulders, can be reflected back when the oil of high-pressure leakage is by shoulder and form turbulent flow at appearance oil pocket, effectively prevent and leak downwards, an appearance oil pocket and cushion chamber that the cylinder body of the piston and No. two pistons and its correspondence that are additionally mutually 180 degree of phase angles is formed mutually buffer, when No. one is held oil pocket under the compression of a piston, number oil held in oil pocket is pressed into cushion chamber by turnover oil pipe, cushion chamber now is in cubical expansion state, using effect is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of the clearance seal system of cylinder body of the present invention and piston.
Detailed description of the invention
Below in conjunction with the accompanying drawings with detailed description of the invention, the cylinder body of the present invention and the clearance seal system of piston are described in further detail.
Embodiment one:
As shown in the figure, the cylinder body of the present invention and the clearance seal system of piston, including a cylinder body 1, the piston 2 arranged in a number cylinder body and the piston rod 3 being connected on a piston, a number piston 2 is connected with outside power set by a piston rod, a number cylinder body 1 has two sections of different diameter segment and is consequently formed two sections of reducing cylinder bodies, a number piston 2 is divided into two sections of piston sections equally, it is respectively arranged with one section of piston section in making two sections of different-diameter sections of a cylinder body 1, a number cylinder body 1 forms No. one between two sections of piston sections of a piston 2 holds oil pocket 4, hold oil pocket 4 to be connected by a turnover oil pipe 5 and a cushion chamber 6.
Embodiment two:
nullAs shown in the figure，The cylinder body of the present invention and the clearance seal system of piston，Including a cylinder body 1 and No. two cylinder bodies 7，A piston 2 and the piston rod 3 being connected on a piston it is provided with in a number cylinder body，A number piston 2 is connected with outside power set by a piston rod，No. two pistons 8 and No. two piston rods 9 being connected on No. two pistons it are provided with in No. two cylinder bodies，No. two pistons 9 are connected with outside power set by No. two piston rods，A number cylinder body 1 is respectively provided with two sections of different diameter segment with No. two cylinder bodies 7，One two sections of reducing cylinder body of the most each self-forming，A number piston 2 is divided into two sections of piston sections，It is respectively arranged with one section of piston section in making two sections of different-diameter sections of a cylinder body 1，A number cylinder body 1 forms No. one between two sections of piston sections of a piston 2 holds oil pocket 4，No. two pistons 8 are also classified into two sections of piston sections equally，It is respectively arranged with one section of piston section in making two sections of different-diameter sections of No. two cylinder bodies 7，No. two cylinder bodies 7 form No. two between two sections of piston sections of No. two pistons 8 holds oil pocket 6，No. two hold oil pocket 6 formed can and No. one hold between oil pocket 4 cushion chamber (that is these No. two are held the cushion chamber that oil pocket is essentially in embodiment) alternately each other，Hold oil pocket 4 and hold oil pocket 6(cushion chamber by a turnover oil pipe 5 and No. two) connect，A number piston 2 and No. two pistons 8 are connected with same rotating shaft 9 by drive mechanism，And in same rotating shaft, it is mutually 180 degree of phase angles，Hold oil pocket 4 and cushion chamber 6 volume is equal，Described drive mechanism and rotating shaft are toggle.
Claims (5)
1. a cylinder body and the clearance seal system of piston, including a cylinder body (1), the piston (2) arranged in a number cylinder body and the piston rod (3) being connected on a piston, a described piston (2) is connected with outside power set by a piston rod, it is characterized in that: a described cylinder body (1) has two sections of different diameter segment, a described piston (2) is divided into two sections of piston sections equally, it is respectively arranged with one section of piston section in making two sections of different-diameter sections of a cylinder body (1), a described cylinder body (1) forms No. one between two sections of piston sections of a piston (2) holds oil pocket (4), described No. one is held oil pocket (4) by turnover oil pipe (5) and a cushion chamber connection.
2. according to the clearance seal system of the cylinder body described in claim 1 and piston, it is characterized in that: also include No. two cylinder bodies (7), No. two pistons (8) being arranged in No. two cylinder bodies and No. two piston rods (9) being connected on No. two pistons, described No. two pistons (8) are connected with outside power set by No. two piston rods, described No. two cylinder bodies (7) have two sections of different diameter segment, described No. two pistons (8) are divided into two sections of piston sections equally, it is respectively arranged with one section of piston section in making two sections of different-diameter sections of No. two cylinder bodies (7), described No. two cylinder bodies (7) form No. two between two sections of piston sections of No. two pistons (8) holds oil pocket (6), described No. two hold oil pocket (6) formed can and No. one hold between oil pocket (4) cushion chamber alternately each other.
3. according to the clearance seal system of the cylinder body described in claim 2 and piston, it is characterised in that: a described piston (2) and No. two pistons (8) are connected with same rotating shaft (10) by drive mechanism, and are mutually 180 degree of phase angles in same rotating shaft.
4. according to the clearance seal system of the cylinder body described in claim 3 and piston, it is characterised in that: described appearance oil pocket (4) and cushion chamber (6) volume are equal.
5. according to the clearance seal system of the cylinder body described in claim 3 and piston, it is characterised in that: described drive mechanism and rotating shaft are toggle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357183.1A CN105822621A (en) | 2016-05-26 | 2016-05-26 | Sealing system for gaps between cylinder bodies and pistons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357183.1A CN105822621A (en) | 2016-05-26 | 2016-05-26 | Sealing system for gaps between cylinder bodies and pistons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105822621A true CN105822621A (en) | 2016-08-03 |
Family
ID=56531301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610357183.1A Pending CN105822621A (en) | 2016-05-26 | 2016-05-26 | Sealing system for gaps between cylinder bodies and pistons |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105822621A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3630019A (en) * | 1969-02-06 | 1971-12-28 | Herwig Kress | Heat-operated prime mover with hydrostatic power transmission |
| CN1704186A (en) * | 2004-06-03 | 2005-12-07 | 巴尔克有限公司 | Method and device for hydraulic expansion |
| JP2007071030A (en) * | 2005-09-02 | 2007-03-22 | Cosmopower Inc | Hydraulic power generation system |
| CN101050777A (en) * | 2006-04-03 | 2007-10-10 | 潘学洪 | Pneumatic motor system |
| CN101283176A (en) * | 2005-08-16 | 2008-10-08 | 安德烈亚斯·希姆萨 | 4-cycle stirling machine with two double-piston units |
| CN205779999U (en) * | 2016-05-26 | 2016-12-07 | 江苏源之翼电气有限公司 | The clearance seal system of cylinder body and piston |
-
2016
- 2016-05-26 CN CN201610357183.1A patent/CN105822621A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3630019A (en) * | 1969-02-06 | 1971-12-28 | Herwig Kress | Heat-operated prime mover with hydrostatic power transmission |
| CN1704186A (en) * | 2004-06-03 | 2005-12-07 | 巴尔克有限公司 | Method and device for hydraulic expansion |
| CN101283176A (en) * | 2005-08-16 | 2008-10-08 | 安德烈亚斯·希姆萨 | 4-cycle stirling machine with two double-piston units |
| JP2007071030A (en) * | 2005-09-02 | 2007-03-22 | Cosmopower Inc | Hydraulic power generation system |
| CN101050777A (en) * | 2006-04-03 | 2007-10-10 | 潘学洪 | Pneumatic motor system |
| CN205779999U (en) * | 2016-05-26 | 2016-12-07 | 江苏源之翼电气有限公司 | The clearance seal system of cylinder body and piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160803 |
|
| WD01 | Invention patent application deemed withdrawn after publication |