CN213744228U - Sealing element for hydraulic cylinder - Google Patents
Sealing element for hydraulic cylinder Download PDFInfo
- Publication number
- CN213744228U CN213744228U CN202020261829.8U CN202020261829U CN213744228U CN 213744228 U CN213744228 U CN 213744228U CN 202020261829 U CN202020261829 U CN 202020261829U CN 213744228 U CN213744228 U CN 213744228U
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- oil
- fixedly connected
- connecting rod
- sealing
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 43
- 229920000742 Cotton Polymers 0.000 claims abstract description 26
- 238000007790 scraping Methods 0.000 claims description 15
- 229910000617 Mangalloy Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 13
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model discloses a sealing element for pneumatic cylinder, including the cylinder body, its characterized in that: the oil cavity has been seted up in the cylinder body, cylinder body top central point puts and has seted up the sliding opening, the sliding opening is to run through the setting with the oil cavity, sliding opening position sliding connection has the piston connecting rod, the cylinder body top is located sliding opening outside position fixedly connected with friction cotton, fixedly connected with seal block is inlayed to the cylinder body top is located the cotton outside position of friction, the seal block upper surface is close to the cotton one side fixedly connected with a plurality of evenly distributed's of friction dead lever, cylinder body top position is provided with the sealing ring, sealing ring inner wall fixedly connected with frizing piece, frizing piece and piston connecting rod sliding connection. The utility model discloses can effectually avoid piston rod area oil to lead to fluid to leak, the leakproofness is good, and the draining way of sealing device position makes separation fluid get back to oil pocket saving fluid again simultaneously.
Description
Technical Field
The utility model relates to a pneumatic cylinder seals leak protection oil field especially relates to a sealing element for pneumatic cylinder.
Background
The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device. The damping device and the exhaust device are determined according to specific application occasions, and other devices are necessary. The hydraulic cylinder is an actuating element in a hydraulic transmission system and is an energy conversion device for converting hydraulic energy into mechanical energy. The hydraulic motor performs a continuous rotary motion, while the hydraulic cylinder performs a reciprocating motion. The hydraulic cylinder has three types, namely a piston cylinder, a plunger cylinder and a swing cylinder, wherein the piston cylinder and the plunger cylinder realize reciprocating linear motion and output speed and thrust, and the swing cylinder realizes reciprocating swing and outputs angular speed (rotating speed) and torque. The hydraulic cylinder may be used in combination of two or more or in combination with other mechanisms, in addition to being used singly. To accomplish a particular function. The hydraulic cylinder has simple structure and reliable work and is widely applied to a hydraulic system of a machine tool.
Sliding connection between piston rod and the cylinder body top of piston hydraulic cylinder among the prior art, the phenomenon that can appear taking oil when rubbing between piston rod and the cylinder body, the piston rod can come out from taking oil in the cylinder body, leads to pneumatic cylinder fluid to leak, and is sealed imperfect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects in the prior art and providing a sealing element for a hydraulic cylinder.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of hydraulic cylinder uses the seal element, including the cylinder block, characterized by that: the oil cavity has been seted up in the cylinder body, cylinder body top central point puts and has seted up the sliding opening, the sliding opening is to run through the setting with the oil cavity, sliding opening position sliding connection has the piston connecting rod, the cylinder body top is located sliding opening outside position fixedly connected with friction cotton, the cylinder body top is located the cotton outside position of friction and inlays the sealed piece of fixedly connected with, sealed piece upper surface is close to the cotton one side fixedly connected with a plurality of evenly distributed's of friction dead lever, cylinder body top position is provided with the sealing ring, sealing ring inner wall fixedly connected with frizing piece, frizing piece and piston connecting rod sliding connection, the position that the cylinder body upper surface is located between sealed piece and the friction cotton sets up the draining mouth of two symmetry settings.
As a further description of the above technical solution:
the dead lever is kept away from sealed piece one end and sealing ring bottom fixed connection, sealed piece upper surface central point puts and the sealing ring keeps away from fixedly connected with sealing rubber between piston connecting rod one side.
As a further description of the above technical solution:
and a piston is arranged in the oil cavity in the cylinder body, and one end of the piston connecting rod, which is positioned in the cylinder body, is fixedly connected with the upper surface of the piston.
As a further description of the above technical solution:
an oil discharge passage is formed between the oil discharge port and the inner side wall of the oil cavity of the cylinder body, and a one-way valve is arranged in the oil discharge passage.
As a further description of the above technical solution:
the oil inlet is formed in any one side of the bottom of the cylinder body, the oil outlet is formed in one side, away from the oil inlet, of the bottom of the cylinder body, and the oil inlet and the oil outlet are both penetrated through the oil cavity.
As a further description of the above technical solution:
the cylinder body, the piston connecting rod, the sealing block, the fixing rod and the sealing ring are all made of manganese steel materials, and the oil scraping piece is a rubber scraping piece.
The utility model discloses following beneficial effect has:
1. the utility model discloses a set up friction cotton and frizing piece, when piston connecting rod moved toward the top, the piston connecting rod brought out fluid, blockked the separation by the friction cotton when the sliding port, further separating through the frizing piece, can increase the leakproofness of cylinder body, avoided the piston connecting rod to take oil, lead to the fluid to leak.
2. The utility model discloses a set up and let out the oil duct, can flow back the fluid of friction cotton and frizing piece separation to the oil intracavity again through draining the oil duct, avoid fluid extravagant.
The utility model discloses can effectually avoid piston rod area oil to lead to fluid to leak, the leakproofness is good, and the draining way of sealing device position makes separation fluid get back to oil pocket saving fluid again simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of a sealing element for a hydraulic cylinder according to the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is a top view of a sealing element for a hydraulic cylinder according to the present invention.
Illustration of the drawings:
1. an oil discharge duct; 2. a one-way valve; 3. a cylinder body; 4. an oil inlet; 5. an oil outlet; 6. an oil chamber; 7. a piston; 8. a piston connecting rod; 9. an oil drainage port; 10. a sealing block; 11. fixing the rod; 12. sealing rubber; 13. an oil scraping sheet; 14. a seal ring; 15. rubbing cotton; 16. and (4) sliding the opening.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, the present invention provides an embodiment: a sealing element for a hydraulic cylinder comprises a cylinder body 3, an oil cavity 6 is formed in the cylinder body 3, a sliding opening 16 is formed in the center of the top of the cylinder body 3, the sliding opening 16 and the oil cavity 6 are arranged in a penetrating mode, a piston connecting rod 8 is connected to the position of the sliding opening 16 in a sliding mode, friction cotton 15 is fixedly connected to the position, located on the outer side of the sliding opening 16, of the top of the cylinder body 3, the friction cotton 15 blocks liquid oil on the piston connecting rod 8, a sealing block 10 is fixedly connected to the position, located on the outer side of the friction cotton 15, of the top of the cylinder body 3 in an embedded mode, a plurality of fixing rods 11 which are evenly distributed are fixedly connected to the upper surface of the sealing block 10, a sealing ring 14 is arranged above the cylinder body 3, an oil scraping sheet 13 is fixedly connected to the inner wall of the sealing ring 14, oil scraped by the oil scraping sheet 13 to the piston connecting rod 8 is prevented from being brought out by the piston connecting rod 8, and the oil scraping sheet 13 is connected with the piston connecting rod 8 in a sliding mode, two oil drainage ports 9 which are symmetrically arranged are formed in the position, between the sealing block 10 and the friction cotton 15, of the upper surface of the cylinder body 3, so that oil separated from the friction cotton 15 and the oil scraping sheet 13 flows into the oil drainage ports 9.
The dead lever 11 is kept away from sealed piece 10 one end and sealing ring 14 bottom fixed connection, and the fixed connection has sealing rubber 12 between sealed piece 10 upper surface central point puts and sealing ring 14 keeps away from 8 one sides of piston connecting rod, avoids being flowed from sealed piece 10 one side by the fluid of scraping oil piece 13 and the cotton 15 separation of friction through sealing rubber 12. A piston 7 is arranged in an oil cavity 6 in the cylinder body 3, and one end of a piston connecting rod 8 in the cylinder body 3 is fixedly connected with the upper surface of the piston 7.
An oil discharge passage 1 is formed between the oil drain port 9 and the inner side wall of the oil cavity 6 of the cylinder body 3, an oil discharge passage reserved when the cylinder body 3 is cast is formed in the oil discharge passage 1, oil separated by the oil scraping piece 13 and the friction cotton 15 flows into the oil cavity 6 through the oil drain port 9 and the oil discharge passage 1, and a one-way valve 2 is arranged in the oil discharge passage 1. An oil inlet 4 is formed in any one side of the bottom of the cylinder body 3, an oil outlet 5 is formed in one side, away from the oil inlet 4, of the bottom of the cylinder body 3, and the oil inlet 4 and the oil outlet 5 are both penetrated through the oil cavity 6. The cylinder body 3, the piston connecting rod 8, the sealing block 10, the fixing rod 11 and the sealing ring 14 are made of manganese steel materials, the strength is high, the quality is good, the damage of parts such as the cylinder body 3 is avoided, the oil scraping sheet 13 is a rubber scraping sheet, the rubber scraping sheet is soft, and the damage of the oil scraping sheet 13 to the piston connecting rod 8 is avoided.
The working principle is as follows: the staff starts the pneumatic cylinder, and when piston 7 pushed up piston connecting rod 8, piston connecting rod 8 can be kept off a part by the cotton 15 fender of friction through the position piston connecting rod 8 outer wall of sliding port 16, and remaining meeting is scraped when the scraper 13, and the fluid of being separated by the cotton 15 of friction and the cotton 15 of friction passes through draining port 9 and draining way 1 and flows into oil pocket 6 again.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. A sealing element for hydraulic cylinders, comprising a cylinder body (3), characterized in that: offer oil pocket (6) in cylinder body (3), cylinder body (3) top central point puts and has seted up sliding opening (16), sliding opening (16) are with oil pocket (6) and run through the setting, sliding opening (16) position sliding connection has piston connecting rod (8), cylinder body (3) top is located sliding opening (16) outside position fixedly connected with friction cotton (15), fixedly connected with seal block (10) is inlayed to cylinder body (3) top position in friction cotton (15) outside position, seal block (10) upper surface is close to friction cotton (15) one side fixedly connected with a plurality of evenly distributed's dead lever (11), cylinder body (3) top position is provided with sealing ring (14), sealing ring (14) inner wall fixedly connected with scrapes oil blade (13), scrape oil blade (13) and piston connecting rod (8) sliding connection, the position that cylinder body (3) upper surface is located between seal block (10) and friction cotton (15) has been seted up two and has been right to the friction cotton (15) position The arranged oil drainage port (9) is weighed.
2. The seal member for a hydraulic cylinder according to claim 1, wherein: one end of the fixing rod (11) far away from the sealing block (10) is fixedly connected with the bottom of the sealing ring (14), and sealing rubber (12) is fixedly connected between the central position of the upper surface of the sealing block (10) and one side of the sealing ring (14) far away from the piston connecting rod (8).
3. The seal member for a hydraulic cylinder according to claim 1, wherein: a piston (7) is arranged in an oil cavity (6) in the cylinder body (3), and one end, located in the cylinder body (3), of the piston connecting rod (8) is fixedly connected with the upper surface of the piston (7).
4. The seal member for a hydraulic cylinder according to claim 1, wherein: an oil discharge passage (1) is formed between the oil discharge port (9) and the inner side wall of the oil cavity (6) of the cylinder body (3), and a one-way valve (2) is arranged in the oil discharge passage (1).
5. The seal member for a hydraulic cylinder according to claim 1, wherein: an oil inlet (4) is formed in any one side of the bottom of the cylinder body (3), an oil outlet (5) is formed in one side, away from the oil inlet (4), of the bottom of the cylinder body (3), and the oil inlet (4) and the oil outlet (5) are both penetrated through the oil cavity (6).
6. The seal member for a hydraulic cylinder according to claim 1, wherein: the cylinder body (3), the piston connecting rod (8), the sealing block (10), the fixing rod (11) and the sealing ring (14) are made of manganese steel materials, and the oil scraping sheet (13) is a rubber scraping sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020261829.8U CN213744228U (en) | 2020-03-05 | 2020-03-05 | Sealing element for hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020261829.8U CN213744228U (en) | 2020-03-05 | 2020-03-05 | Sealing element for hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213744228U true CN213744228U (en) | 2021-07-20 |
Family
ID=76813751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020261829.8U Expired - Fee Related CN213744228U (en) | 2020-03-05 | 2020-03-05 | Sealing element for hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213744228U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439809A (en) * | 2022-01-13 | 2022-05-06 | 丁安琦 | Hydraulic oil cylinder assembly |
-
2020
- 2020-03-05 CN CN202020261829.8U patent/CN213744228U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439809A (en) * | 2022-01-13 | 2022-05-06 | 丁安琦 | Hydraulic oil cylinder assembly |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210720 |
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| CF01 | Termination of patent right due to non-payment of annual fee |