CN220505471U - Hydraulic cylinder with high stability - Google Patents
Hydraulic cylinder with high stability Download PDFInfo
- Publication number
- CN220505471U CN220505471U CN202322078236.4U CN202322078236U CN220505471U CN 220505471 U CN220505471 U CN 220505471U CN 202322078236 U CN202322078236 U CN 202322078236U CN 220505471 U CN220505471 U CN 220505471U
- Authority
- CN
- China
- Prior art keywords
- piston
- gasket
- cylinder body
- cylinder
- cover
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 239000007769 metal material Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a hydraulic cylinder with high stability, which relates to the technical field of hydraulic cylinders and comprises a cylinder body, wherein a rear cylinder cover is fixedly arranged at one end of the cylinder body, a first fluid inlet and outlet are formed in the lower end of the rear cylinder cover, a front cylinder cover is fixedly arranged at the other end of the cylinder body, a second fluid inlet and outlet are formed in the lower end of the front cylinder cover, a piston rod is movably arranged in the cylinder body, a piston is fixedly arranged at one end of the piston rod, the other end of the piston rod penetrates through the front cylinder cover to extend to one end of the front cylinder cover and is fixedly provided with an earring, the piston also comprises a piston seat, a first end cover and a second end cover, and the first end cover and the second end cover are movably arranged at one end of the piston seat. Two sealing rings are installed on the outer side of the piston seat in a penetrating mode, the inner cavity of the cylinder body can be separated and sealed, meanwhile, an annular air bag deformed through acting force of a supporting spring is installed in the sealing rings, the annular air bag can be pressed to expand the sealing rings all the time, and therefore abrasion gaps between the sealing rings and the inner wall of the cylinder body are compensated.
Description
Technical Field
The utility model relates to the technical field of hydraulic cylinders, in particular to a high-stability hydraulic cylinder.
Background
The hydraulic cylinder is an important hydraulic transmission element for realizing the conversion of pressure energy and mechanical energy in a hydraulic system, and consists of a cylinder body, a piston rod, an oil inlet, an oil outlet and other main parts, wherein the working principle of the hydraulic cylinder is to realize the conversion of the pressure energy and the mechanical energy through the movement of the piston in the cylinder body, and when the piston moves in the cylinder body, the pressure difference is generated at an inlet and an outlet of hydraulic oil so as to push a load to move, so that the hydraulic cylinder is widely applied to various mechanical equipment, such as a crane, an excavator, a press and the like, and has an important role in improving the efficiency, the stability and the reliability of the mechanical equipment as a core element in the hydraulic system;
the piston rod in the hydraulic cylinder passes through the output and the input of the cylinder body internal circulation of hydraulic oil in the piston both sides to remove through promoting the piston and make the piston rod remove, and can install the sealing washer in the outside of piston, when moving with the guarantee piston, the cylinder body internal cavity that is located the piston both sides carries out sealed separation, and the piston can rub with the cylinder body inner wall when long-time the reciprocating motion in the cylinder body, after certain time friction use, can make the sealing washer unable make the piston separate the cavity in the cylinder body, consequently, need periodic change, cause maintenance cycle weak point, and if not in time change, can influence hydraulic cylinder's stability in use.
Disclosure of Invention
The utility model aims to provide a hydraulic cylinder with high stability, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a hydraulic cylinder that stability is high, includes the cylinder body, cylinder body one end fixed mounting has the back cylinder cap, first fluid access & exit has been seted up to back cylinder cap lower extreme, cylinder body other end fixed mounting has the preceding cylinder cap, the second fluid access & exit has been seted up to preceding cylinder cap lower extreme, movable mounting has the piston rod in the cylinder body, piston rod one end fixed mounting has the piston, the piston rod other end passes preceding cylinder cap and extends to preceding cylinder cap one end and fixed mounting have the earring, the piston still includes piston seat, first end cover and second end cover movable mounting are in piston seat one end, two sealing washer outside movable mounting have two sealing washer, movable mounting has annular gasbag in the sealing washer that is located annular gasbag both sides still movable mounting has supporting spring in the sealing washer.
As a further preferable scheme of the utility model, screw grooves are formed at two ends of the piston seat, screw rings are fixedly arranged at one sides of the first end cover and the second end cover, which are opposite to each other, respectively, the screw rings are in threaded connection with the corresponding screw grooves, and two limiting rings are fixedly arranged at the outer side of the piston seat.
As a further preferable scheme of the utility model, two fixing rings are fixedly arranged on the inner side of the sealing ring, a plurality of embedded grooves are formed in one side of each fixing ring, screw holes are formed in each embedded groove, and the fixing rings are made of metal materials.
As a further preferable scheme of the utility model, a top groove is formed on the inner side of the sealing ring between the two fixing rings, and the annular air bag is clamped in the top groove.
As a further preferable scheme of the utility model, the two ends of the supporting spring are respectively and fixedly provided with a first gasket and a second gasket, the center position of the second gasket is provided with a jack, and the first gasket and the second gasket are respectively and fixedly arranged on one side of the annular air bag and one side of the fixing ring by utilizing the supporting force of the fixing seat.
As a further preferable scheme of the utility model, the screw hole is internally connected with a mounting screw in a threaded manner, one end of the mounting screw extends to one side of the first gasket through the jack in the corresponding second gasket, and the end part of the mounting screw is embedded and mounted in the embedded groove.
Compared with the prior art, the utility model has the following beneficial effects:
according to the hydraulic cylinder with high stability, the two sealing rings are installed on the outer side of the piston seat in a penetrating mode, the inner cavity of the cylinder body can be sealed in a separated mode, meanwhile, the annular air bag deformed through acting force of the supporting spring is installed in the sealing rings, the annular air bag can be pressed to expand the sealing rings all the time, and therefore abrasion gaps between the sealing rings and the inner wall of the cylinder body are compensated.
Drawings
FIG. 1 is a schematic diagram of the main structure of the present utility model;
FIG. 2 is a split view of a piston structure according to the present utility model;
FIG. 3 is a cross-sectional view of a seal ring of the present utility model;
fig. 4 is an enlarged view at a in fig. 3.
In the figure: 1. a cylinder; 2. a first fluid inlet and outlet; 3. a front cylinder cover; 4. a second fluid inlet and outlet; 5. a piston rod; 6. a piston; 7. ear rings; 8. a piston seat; 9. a first end cap; 10. a second end cap; 11. a seal ring; 12. an annular air bag; 13. a support spring; 14. a limiting ring; 15. a screw groove; 16. a spiro ring; 17. a fixing ring; 18. an embedding groove; 19. a screw hole; 20. a top groove; 21. a first gasket; 22. a second gasket; 23. a fixing seat; 24. a jack; 25. installing a screw; 26. and a rear cylinder cover.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1-4, the hydraulic cylinder with high stability provided by the utility model comprises a cylinder body 1, a rear cylinder cover 26 is fixedly arranged at one end of the cylinder body 1, a first fluid inlet and outlet 2 is formed in the lower end of the rear cylinder cover 26, a front cylinder cover 3 is fixedly arranged at the other end of the cylinder body 1, a second fluid inlet and outlet 4 is formed in the lower end of the front cylinder cover 3, a piston rod 5 is movably arranged in the cylinder body 1, a piston 6 is fixedly arranged at one end of the piston rod 5, the other end of the piston rod 5 penetrates through the front cylinder cover 3 to extend to one end of the front cylinder cover 3 and is fixedly provided with an earring 7, the piston 6 also comprises a piston seat 8, a first end cover 9 and a second end cover 10, the first end cover 9 and the second end cover 10 are movably arranged at one end of the piston seat 8, two sealing rings 11 are movably arranged at the outer side of the piston seat 8, an annular air bag 12 is movably arranged in the sealing rings 11, and supporting springs 13 are movably arranged in the sealing rings 11 positioned at two sides of the annular air bag 12.
Screw grooves 15 are formed in two ends of the piston seat 8, a spiral ring 16 is fixedly arranged on one side, opposite to the second end cover 10, of the first end cover 9, the spiral ring 16 is in threaded connection with the corresponding screw grooves 15, two limiting rings 14 are fixedly arranged on the outer side of the piston seat 8, the piston 6 is divided into three parts of the piston seat 8, the first end cover 9 and the second end cover 10, and the sealing ring 11 and the fixing ring 17 are conveniently mounted by matching the two limiting rings 14 fixedly arranged on the outer side of the piston seat 8;
through the fixed mounting of sealing washer 11 inboard two solid fixed ring 17, gu fixed ring 17 one side has seted up a plurality of embedded grooves 18, set up screw 19 in the embedded groove 18, and gu fixed ring 17 is the metal material, the sealing washer 11 inboard between two solid fixed rings 17 has been seted up roof groove 20, annular gasbag 12 card is installed in roof groove 20, support spring 13 both ends fixed mounting respectively has first gasket 21 and second gasket 22, second gasket 22 central point puts and has seted up jack 24, first gasket 21 and second gasket 22 utilize the holding power of fixing base 23 to attach respectively to install on annular gasbag 12 one side and solid fixed ring 17 one side, screw 19 female connection has mounting screw 25, mounting screw 25 one end is passed the jack 24 in corresponding second gasket 22 and is extended to first gasket 21 one side, and the tip embedding of mounting screw 25 is installed in embedded groove 18, it has first gasket 21 and second gasket 22 to support spring 13 both sides respectively fixed mounting, do benefit to support spring 13 card install between annular gasbag 12 and solid fixed ring 17, and support spring 13 carries out a steady radial removal with the help of mounting screw 25, thereby carry out annular gasbag 12 through the pressure application of force to support spring 13.
It should be noted that, in the hydraulic cylinder with high stability, when installing the sealing ring 11, the structures of the plurality of groups of supporting springs 13, the first gasket 21 and the second gasket 22 are inserted and installed between the annular air bag 12 and the fixed ring 17 at the inner side of the sealing ring 11, the supporting springs 13 are compressed due to the limitation of the annular air bag 12 and the fixed ring 17, then, the installing screws 25 are connected into the screw holes 19 in a threaded manner, one ends of the installing screws 25 penetrate through the insertion holes 24 in the second gasket 22 and are arranged in the supporting springs 13, so that the radial movement of the supporting springs 13 during expansion and contraction can be ensured, the end parts of the installing screws 25 are embedded in the embedded grooves 18, then, the rest supporting springs 13 are operated in the same manner, then, the sealing ring 11 and the inner fixed ring 17 are inserted and installed at the outer side of the piston seat 8, the spiral ring 16 at the side of the first end cover 9 and the second end cover 10 are connected in the corresponding spiral grooves 15, and then, the installation of the whole piston 6 is completed, after the outer side of the sealing ring 11 is worn and the inner wall of the cylinder body 1 generates a gap, the annular air bag 12 is pressed against the annular air bag 12 by the plurality of supporting springs 13, so that the annular air bag 11 is always attached to the outer side of the sealing ring 1.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a hydraulic cylinder that stability is high, includes cylinder body (1), cylinder body (1) one end fixed mounting has back cylinder cap (26), first fluid access & exit (2) have been seted up to back cylinder cap (26) lower extreme, cylinder body (1) other end fixed mounting has preceding cylinder cap (3), second fluid access & exit (4) have been seted up to preceding cylinder cap (3) lower extreme, movable mounting has piston rod (5) in cylinder body (1), piston rod (5) one end fixed mounting has piston (6), the piston rod (5) other end passes preceding cylinder cap (3) and extends to preceding cylinder cap (3) one end and fixed mounting have earrings (7), its characterized in that: the piston (6) further comprises a piston seat (8), a first end cover (9) and a second end cover (10), the first end cover (9) and the second end cover (10) are movably mounted at one end of the piston seat (8), two sealing rings (11) are movably mounted outside the piston seat (8), an annular air bag (12) is movably mounted in each sealing ring (11), and supporting springs (13) are movably mounted in the sealing rings (11) at two sides of the annular air bag (12).
2. The high stability hydraulic ram of claim 1, wherein: screw grooves (15) are formed in two ends of the piston seat (8), a spiral ring (16) is fixedly installed on one side, opposite to the second end cover (10), of the first end cover (9), the spiral ring (16) is in threaded connection with the corresponding screw grooves (15), and two limiting rings (14) are fixedly installed on the outer side of the piston seat (8).
3. The high stability hydraulic ram of claim 2, wherein: two fixing rings (17) are fixedly arranged on the inner side of the sealing ring (11), a plurality of embedded grooves (18) are formed in one side of the fixing rings (17), screw holes (19) are formed in the embedded grooves (18), and the fixing rings (17) are made of metal materials.
4. A highly stable hydraulic ram according to claim 3, wherein: a top groove (20) is formed in the inner side of the sealing ring (11) between the two fixing rings (17), and the annular air bag (12) is clamped in the top groove (20).
5. The high stability hydraulic cylinder of claim 4, wherein: the two ends of the supporting spring (13) are respectively and fixedly provided with a first gasket (21) and a second gasket (22), a jack (24) is formed in the center of the second gasket (22), and the first gasket (21) and the second gasket (22) are respectively and fixedly attached to one side of the annular air bag (12) and one side of the fixed ring (17) by using the supporting force of the fixed seat (23).
6. The high stability hydraulic ram of claim 5, wherein: the screw hole (19) is internally connected with a mounting screw (25) in a threaded manner, one end of the mounting screw (25) penetrates through an insertion hole (24) in the corresponding second gasket (22) to extend to one side of the first gasket (21), and the end part of the mounting screw (25) is embedded and mounted in the embedded groove (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322078236.4U CN220505471U (en) | 2023-08-03 | 2023-08-03 | Hydraulic cylinder with high stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322078236.4U CN220505471U (en) | 2023-08-03 | 2023-08-03 | Hydraulic cylinder with high stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220505471U true CN220505471U (en) | 2024-02-20 |
Family
ID=89879346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322078236.4U Active CN220505471U (en) | 2023-08-03 | 2023-08-03 | Hydraulic cylinder with high stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220505471U (en) |
-
2023
- 2023-08-03 CN CN202322078236.4U patent/CN220505471U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201723713U (en) | Sealing device for hydraulic cylinder | |
| CN220505471U (en) | Hydraulic cylinder with high stability | |
| CN201801346U (en) | Novel hydraulic jack | |
| CN211449272U (en) | Oil cylinder buffer device | |
| CN202646222U (en) | Oil cylinder and hydraulic system | |
| CN217177037U (en) | Landing leg hydro-cylinder with integral bulb piston rod | |
| CN209943237U (en) | Hydraulic cylinder of engineering machinery | |
| CN213541142U (en) | Nitrogen spring with oil-free guide sleeve | |
| CN212959357U (en) | Two-stage hydraulic cylinder | |
| CN210317978U (en) | Piston sensitive excavator oil cylinder | |
| CN102777529A (en) | Nitrogen cushion | |
| CN209800421U (en) | multistage hydraulic cylinder | |
| CN221097446U (en) | 90MPa diaphragm compressor hydro-cylinder hydraulic oil side plunger seal structure | |
| CN112303044A (en) | Pressurizing oil cylinder | |
| CN216812347U (en) | Double-channel hydraulic oil cylinder | |
| CN105171679A (en) | Method and tool for installing U seals on guide vane upper end covers of water turbine | |
| CN221401441U (en) | Wind power generation wind power hydraulic braking device | |
| CN211116903U (en) | High-sealing hydraulic cylinder | |
| CN210889530U (en) | Novel hydraulic cylinder lower cover | |
| CN219176946U (en) | Oil seal sealing structure | |
| CN218031370U (en) | Pneumatic piston rod sealing ring | |
| CN221610305U (en) | Double-force cylinder | |
| CN215370969U (en) | Sealing ring for hydraulic cylinder | |
| CN211501155U (en) | Piston rod sealing ring of hydraulic cylinder | |
| CN213871690U (en) | High-pressure sealing structure of hydraulic pipe expander |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |