CN217421696U - Piston sealing structure for hydraulic cylinder - Google Patents
Piston sealing structure for hydraulic cylinder Download PDFInfo
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- CN217421696U CN217421696U CN202221011684.1U CN202221011684U CN217421696U CN 217421696 U CN217421696 U CN 217421696U CN 202221011684 U CN202221011684 U CN 202221011684U CN 217421696 U CN217421696 U CN 217421696U
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- guide sleeve
- piston
- hydraulic cylinder
- sealing ring
- annular side
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Abstract
The utility model provides a piston seal structure for a hydraulic cylinder, which comprises a hydraulic cylinder barrel, a round platform-shaped seal ring main body, a first guide sleeve and a second guide sleeve, wherein a piston rod is transversely arranged in the hydraulic cylinder barrel, a piston is fixed on the annular side surface of the piston rod, a second guide sleeve groove is arranged in the middle of the annular side surface of the piston, the second guide sleeve is fixed in the second guide sleeve groove, the left side and the right side of the annular side surface of the piston are respectively provided with a first guide sleeve groove, the number of specifications of the first guide sleeves is two, the two first guide sleeves are respectively fixed in the two first guide sleeve grooves, the annular side surface of the piston is provided with two seal ring grooves, the design solves the piston seal structure of the original hydraulic cylinder, selects a single seal structure to realize the seal of a hydraulic pressure cabin, and the problem that the wear resistance and the sealing performance of the hydraulic pressure cabin are deteriorated after long-time use, the practicality is good, can reduce frictional resistance and guarantee the leakproofness simultaneously, and can prolong the holistic life of this device.
Description
Technical Field
The utility model relates to a piston seal structure for pneumatic cylinder belongs to pneumatic cylinder equipment technical field.
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 existing piston sealing structure for the hydraulic cylinder adopts a single sealing structure to realize sealing of the hydraulic cabin, and after the piston sealing structure is used for a long time, the wear resistance and the sealing property of the piston sealing structure are poor.
There is an urgent need for a piston sealing structure for a hydraulic cylinder to solve the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a piston seal structure for pneumatic cylinder to solve the problem that proposes in the above-mentioned background art, the utility model discloses rational in infrastructure, the practicality is good, can reduce frictional resistance and guarantee the leakproofness, and can prolong the holistic life of this device.
In order to achieve the above purpose, the present invention is realized by the following technical solution: a piston sealing structure for a hydraulic cylinder comprises a hydraulic cylinder barrel, a round platform-shaped sealing ring main body, a first guide sleeve and a second guide sleeve, wherein a piston rod is transversely arranged in the hydraulic cylinder barrel, a piston is fixed on the annular side surface of the piston rod, a second guide sleeve groove is formed in the middle of the annular side surface of the piston, the second guide sleeve is fixed in the second guide sleeve groove, the first guide sleeve grooves are formed in the left side and the right side of the annular side surface of the piston, two first guide sleeves are arranged in the first guide sleeve grooves in an equal-specification mode, the two first guide sleeves are fixed in the two first guide sleeve grooves respectively, two sealing ring grooves are formed in the annular side surface of the piston, two round platform-shaped sealing ring main bodies are arranged in the equal-specification mode, the two round platform-shaped sealing ring main bodies are fixed in the two sealing ring grooves respectively, and a Glare ring groove is formed in the middle of the annular side surfaces of the two round platform-shaped sealing ring main bodies, and the two GREEN rings are fixed in the two GREEN ring grooves.
Furtherly, two first annular oil groove has all been seted up in the middle of the first uide bushing annular side, second annular oil groove has been seted up in the middle of the second uide bushing annular side.
Furthermore, two all be provided with fluid in the first annular oil groove with in the second annular oil groove.
Furthermore, the circular truncated cone-shaped sealing ring main body on the left side is positioned between the right end of the first guide sleeve on the left side and the left end of the second guide sleeve.
Furthermore, the right circular truncated cone-shaped sealing ring main body is positioned between the left end of the first right guide sleeve and the right end of the second right guide sleeve.
The utility model has the advantages that: the utility model discloses a piston seal structure for pneumatic cylinder, because of the utility model discloses second uide bushing, first uide bushing groove, first uide bushing, first annular oil groove, sealed annular, round platform form sealing ring main part, glary circle groove, glary circle, second uide bushing groove and second annular oil groove have been added to enable the frictional resistance between piston and the pneumatic cylinder barrel and reduce, can guarantee its leakproofness simultaneously, and through our design, can prolong the holistic life of this device.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic cross-sectional view of the overall structure of a piston sealing structure for a hydraulic cylinder according to the present invention;
fig. 2 is an enlarged schematic view of a position a of the piston sealing structure for a hydraulic cylinder according to the present invention;
fig. 3 is a schematic view of the inside of a cylinder barrel of a piston sealing structure for a hydraulic cylinder according to the present invention;
in the figure: the sealing structure comprises the following components, by weight, 1-a hydraulic cylinder barrel, 2-a piston rod, 3-a piston, 4-a first guide sleeve groove, 5-a first guide sleeve, 6-a first annular oil groove, 7-a sealing ring groove, 8-a circular truncated cone-shaped sealing ring main body, 9-a Glare ring groove, 10-a Glare ring, 11-a second guide sleeve groove, 12-a second guide sleeve and 13-a second annular oil groove.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 1-3, the present invention provides a technical solution: a piston sealing structure for a hydraulic cylinder comprises a hydraulic cylinder barrel 1, a circular truncated cone-shaped sealing ring main body 8, a first guide sleeve 5 and a second guide sleeve 12, wherein a piston rod 2 is transversely arranged in the hydraulic cylinder barrel 1, a piston 3 is fixed on the annular side surface of the piston rod 2, a second guide sleeve groove 11 is formed in the middle of the annular side surface of the piston 3, the second guide sleeve 12 is fixed in the second guide sleeve groove 11, first guide sleeve grooves 4 are respectively formed in the left side and the right side of the annular side surface of the piston 3, two first guide sleeves 5 are arranged in an equal specification manner, the two first guide sleeves 5 are respectively fixed in the two first guide sleeve grooves 4, two sealing ring grooves 7 are formed in the annular side surface of the piston 3, two circular truncated cone-shaped sealing ring main bodies 8 are arranged in an equal specification manner, the two circular truncated cone-shaped sealing ring main bodies 8 are respectively fixed in the two sealing ring grooves 7, and a Laegger ring groove 9 is formed in the middle of the annular side surfaces of the two circular truncated cone-shaped sealing ring main bodies 8, the two GREEN grooves 9 are internally fixed with the GREEN rings 10, and the design solves the problems that the piston sealing structure of the original hydraulic cylinder adopts a single sealing structure to seal a hydraulic cabin, and the wear resistance and the sealing performance of the hydraulic cabin are poor after the hydraulic cabin is used for a long time.
First annular oil groove 6 has all been seted up in the middle of 5 annular sides of two first uide bushings, has seted up second annular oil groove 13 in the middle of 12 annular sides of second uide bushing, through two first annular oil grooves 6 and the second annular oil groove 13 of seting up, can add fluid wherein.
All be provided with fluid in two first annular oil grooves 6 and the second annular oil groove 13, through the fluid that adds, can be when two round platform form sealing ring main parts 8 are driven and move about, carry out the humidification lubrication with the meeting department of two round platform form sealing ring main parts 8 left and right sides and 1 inboard side surface of pneumatic cylinder barrel, and then make the friction between two round platform form sealing ring main parts 8 and the pneumatic cylinder barrel 1 can reduce, and when two round platform form sealing ring main parts 8 moved about, two round platform form sealing ring main parts 8 left and right sides can take away pneumatic cylinder barrel 1 inner wall by humidification department fluid, and then when making two glade rings 10 be driven and move about, can not be contacted by the humidification department with 1 inner wall of pneumatic cylinder barrel, make two glade rings 10 can not reduce the leakproofness between piston 3 and the pneumatic cylinder barrel 1.
The left circular truncated cone-shaped sealing ring main body 8 is positioned between the right end of the left first guide sleeve 5 and the left end of the second guide sleeve 12, and the left and right sides of the left circular truncated cone-shaped sealing ring main body 8 can be attached to the inner side surface of the hydraulic cylinder barrel 1 for humidification and lubrication through the added left first guide sleeve 5 and the added second guide sleeve 12.
The right circular truncated cone-shaped sealing ring main body 8 is positioned between the left end of the right first guide sleeve 5 and the right end of the second guide sleeve 12, and the positions, which are attached to the inner side surface of the hydraulic cylinder barrel 1, of the left side of the right circular truncated cone-shaped sealing ring main body 8 can be humidified and lubricated through the added right first guide sleeve 5 and the added second guide sleeve 12.
As an embodiment of the present invention: when the piston rod 2 drives the piston 3 to move left and right in the hydraulic cylinder barrel 1, oil in the two first annular oil grooves 6 and oil in the second annular oil groove 13 can flow out, the left and right sides of the two circular truncated cone-shaped sealing ring main bodies 8 are humidified and lubricated with the positions where the left and right sides of the hydraulic cylinder barrel 1 are attached to the inner side surface of the hydraulic cylinder barrel 1, friction between the two circular truncated cone-shaped sealing ring main bodies 8 and the hydraulic cylinder barrel 1 can be reduced, when the two circular truncated cone-shaped sealing ring main bodies 8 move left and right, the inner walls of the hydraulic cylinder barrel 1 can be taken away by the oil at the humidified positions by the left and right sides of the two circular truncated cone-shaped sealing ring main bodies 8, and when the two GREL rings 10 are driven to move left and right, the two GREL rings do not contact with the humidified positions on the inner walls of the hydraulic cylinder barrel 1, and the tightness between the piston 3 and the hydraulic cylinder barrel 1 can not be reduced by the two GREL rings 10.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a piston seal structure for pneumatic cylinder, includes pneumatic cylinder (1), round platform form sealing ring main part (8), first uide bushing (5) and second uide bushing (12), its characterized in that: the hydraulic cylinder is characterized in that a piston rod (2) is transversely arranged in the hydraulic cylinder barrel (1), a piston (3) is fixed on the annular side surface of the piston rod (2), a second guide sleeve groove (11) is formed in the middle of the annular side surface of the piston (3), a second guide sleeve (12) is fixed in the second guide sleeve groove (11), first guide sleeve grooves (4) are formed in the left side and the right side of the annular side surface of the piston (3), two first guide sleeves (5) are arranged in an equal-specification mode, two first guide sleeves (5) are fixed in the two first guide sleeve grooves (4) respectively, two sealing ring grooves (7) are formed in the annular side surface of the piston (3), two circular platform-shaped sealing ring bodies (8) are arranged in an equal-specification mode, the two circular platform-shaped sealing ring bodies (8) are fixed in the two sealing ring grooves (7) respectively, and a gray ring groove (9) is formed in the middle of the annular side surface of the two circular platform-shaped sealing ring bodies (8), and the two GREEN ring grooves (9) are internally fixed with GREEN rings (10).
2. A piston seal structure for a hydraulic cylinder according to claim 1, characterized in that: two first annular oil groove (6) have all been seted up in the middle of first uide bushing (5) annular side, second annular oil groove (13) have been seted up in the middle of second uide bushing (12) annular side.
3. A piston seal structure for a hydraulic cylinder according to claim 2, characterized in that: and oil liquid is arranged in the first annular oil groove (6) and the second annular oil groove (13).
4. A piston seal structure for a hydraulic cylinder according to claim 1, characterized in that: the circular truncated cone-shaped sealing ring main body (8) on the left side is positioned between the right end of the first guide sleeve (5) on the left side and the left end of the second guide sleeve (12).
5. A piston seal structure for a hydraulic cylinder according to claim 1, characterized in that: and the right circular truncated cone-shaped sealing ring main body (8) is positioned between the left end of the right first guide sleeve (5) and the right end of the right second guide sleeve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221011684.1U CN217421696U (en) | 2022-04-28 | 2022-04-28 | Piston sealing structure for hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221011684.1U CN217421696U (en) | 2022-04-28 | 2022-04-28 | Piston sealing structure for hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217421696U true CN217421696U (en) | 2022-09-13 |
Family
ID=83185684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221011684.1U Active CN217421696U (en) | 2022-04-28 | 2022-04-28 | Piston sealing structure for hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217421696U (en) |
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2022
- 2022-04-28 CN CN202221011684.1U patent/CN217421696U/en active Active
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