CN206268166U - A kind of engineering machinery oil hydraulic cylinder - Google Patents
A kind of engineering machinery oil hydraulic cylinder Download PDFInfo
- Publication number
- CN206268166U CN206268166U CN201621224996.5U CN201621224996U CN206268166U CN 206268166 U CN206268166 U CN 206268166U CN 201621224996 U CN201621224996 U CN 201621224996U CN 206268166 U CN206268166 U CN 206268166U
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- China
- Prior art keywords
- piston
- piston rod
- cylinder
- hydraulic cylinder
- oil hydraulic
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Abstract
The utility model discloses a kind of engineering machinery oil hydraulic cylinder, including the first screw, cylinder head, cushion collar, first piston, flange, the second screw, flange, rear end cushion collar, cylinder bottom, air bleeding valve, second piston, the 3rd screw, pouring orifice, cylinder body, locking nut, buffer throttling valve, end cap, end cap, piston rod, first piston left side is provided with piston rod lubricating sleeve, dust ring, guide ring are provided between second piston and cylinder body, O-ring seals are provided between second piston and piston rod, rear end cushion collar is provided between piston rod afterbody and cylinder body.This practical piston rod lubricating sleeve can effectively lubricating valve rod, solve the problems, such as that piston rod is easy to wear.
Description
Technical field
The utility model is related to engineering machinery accessory field, and in particular to a kind of engineering machinery oil hydraulic cylinder.
Background technology
For oil hydraulic cylinder, oil hydraulic cylinder is stretched out under state when such as piston rod jacking etc., generally by hydraulic lock
Hydraulic cylinder is locked under expected working condition, i.e., under hydraulic cylinder loading condition, in order to prevent seal fails or interior let out
Cause oil cylinder to sink, lock oil hydraulic cylinder using hydraulic lock generally in hydraulic system, but because the reliability of hydraulic lock is by more
The restriction of the factor of kind, its reliability is relative especially in the oil hydraulic cylinder of long-time continuous load can reduce, therefore hydraulic lock has mistake
Effect situation, making the reliability of system reduces, and has the risk that contingency occurs, and hydraulic lock also has certain internal leakage wind
Danger, when long-time continuous load works, due to the internal leakage of hydraulic system, hydraulic cylinder has certain sinking, causes hydraulic pressure to set
Standby unstability, in addition piston rod easily wear and tear, piston rod easily easily causes to cylinder bottom to clash into high-speed motion.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide effectively lubricating valve rod, solves piston rod easy
The problem of abrasion, while reducing a kind of engineering machinery oil hydraulic cylinder of the piston rod to the impact of cylinder bottom.
To achieve these goals, the utility model is adopted the following technical scheme that：Including the first screw, cylinder head, cushion collar,
First piston, flange, the second screw, flange, rear end cushion collar, cylinder bottom, air bleeding valve, second piston, the 3rd screw, oiling
Mouth, cylinder body, locking nut, buffer throttling valve, end cap, end cap, piston rod, it is characterised in that：The first piston left side is provided with
Piston rod lubricating sleeve
Further, dust ring, guide ring are provided between the second piston and cylinder body；
Further, O-ring seals are provided between the second piston and piston rod；
Further, it is provided with rear end cushion collar between the piston rod afterbody and cylinder body.
The beneficial effects of the utility model are：
The utility model piston rod lubricating sleeve can effectively lubricating valve rod, solve the problems, such as that piston rod is easy to wear, it is effectively anti-
Only extraneous dust enters in cylinder body by piston rod, the normal service life for using, improving oil hydraulic cylinder of influence oil hydraulic cylinder, should
Piston rod lubricating sleeve can effectively protect piston rod；Dust ring is provided between piston rod and cylinder cap, Main Function is to remove back and forth
Moving piston bar is exposed at the dirts such as dust accompanying on cylinder outer surface, sand-lime, rainwater and frost, prevents external dust, rain
Water enters inside sealing mechanism, and dust ring reduces the abrasion of hydraulic cylinder；Guide ring, it can prevent piston rod in motion process
There is directly contact and friction with cylinder body, play a part of protection cylinder body and be not damaged by with piston rod；O-ring seals, the sealing of O shapes
Circle has good sealing property, and increase with pressure can automatically improve sealing, in addition, frictional resistance is small, oil resistant, anti-corruption
Erosion, wear-resisting, convenient disassembly, can facilitate the maintenance of hydraulic cylinder；Rear end cushion collar is provided between piston rod afterbody and cylinder body, can
With damper piston bar to the rigid shock of cylinder bottom.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described：
Fig. 1 is structural representation of the present utility model.
Drawing reference numeral is：The screws of 1- first, 2- cylinder heads, 3- cushion collars, 4- first pistons, 5- piston rods lubricating sleeve, 6- methods
Orchid, the screws of 7- second, 8- dust rings, 9- guide rings, 10- flanges, 11- rear ends cushion collar, 12- cylinder bottoms, 13- air bleeding valves, 14-
O-ring seals 15- second pistons, the screws of 16- the 3rd, 17- pouring orifices, 18- cylinder bodies, 19- locking nuts, 20- buffer throttling valves,
21- end caps, 22- end caps, 23- piston rods.
Specific embodiment
Refering to a kind of engineering machinery oil hydraulic cylinder shown in accompanying drawing 1, the right side of cylinder body 18 is provided with cylinder head 2, cylinder head 2 and cylinder body 18
Between be connected with locking nut 19, cylinder head 2 is provided with buffer throttling valve 20, and the right side of cylinder head 2 is provided with end cap 22, end cap 22 and cylinder head
The first screw 1 is connected between 2, fairlead 21 is provided between end cap 22 and cylinder head 2, the left side of cylinder body 18 is provided with cylinder bottom 12, cylinder bottom
12 are provided with air bleeding valve 13, and the right side of cylinder bottom 12 is provided with second flange 10, piston rod 23, the middle-end of piston rod 23 are provided with inside cylinder body 18
Cushion collar 3, first piston 4 are provided between cylindrical wall and cylinder body 18, the left side of first piston 4 is provided with piston rod lubricating sleeve 5, piston rod
Lubricating sleeve 5 can effectively lubricating piston rod 23, solve the problems, such as that piston rod 23 is easy to wear, effectively prevent extraneous dust pass through piston
Enter in cylinder body 18 on bar 23, the normal service life for using, improving oil hydraulic cylinder of influence oil hydraulic cylinder, the piston rod lubricating sleeve energy
Enough effectively protection piston rods 23；Piston rod lubricating sleeve 5 is provided with pouring orifice, and is provided between piston rod lubricating sleeve 5 and cylinder body 18
One flange 6, is connected with the second screw 7 between first flange 6 and piston rod lubricating sleeve 5, the tail end of piston rod 23 is provided with second piston
15, it is provided with O-ring seals 14 between second piston 15 and piston rod 15, O-ring seals 14 have a good sealing property, and with
The increase of pressure can automatically improve sealing, and frictional resistance is small in addition, oil resistant, anticorrosive, wear-resisting, convenient disassembly, can be conveniently
Dust ring 8 and guide ring 9 are provided between the maintenance second piston 15 and cylinder body 18 of hydraulic cylinder, dust ring 8 reduces hydraulic cylinder
Abrasion；Guide ring 9 can prevent piston rod 23 from directly contact and friction occurring with cylinder body 18 in motion process, play protection cylinder body
18 effects being not damaged by with piston rod 23；Rear end cushion collar 11, rear end are provided between the afterbody of piston rod 23 and cylinder body 12
Cushion collar 11 can be with damper piston bar to the rigid shock of cylinder bottom.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any change or replacement expected without creative work should all be covered within protection domain of the present utility model.
Therefore, protection domain of the present utility model should be determined by the scope of protection defined in the claims.
Claims (4)
1. a kind of engineering machinery oil hydraulic cylinder, including the first screw, cylinder head, cushion collar, first piston, flange, the second screw, method
Orchid, rear end cushion collar, cylinder bottom, air bleeding valve, second piston, the 3rd screw, pouring orifice, cylinder body, locking nut, buffering throttling
Valve, end cap, end cap, piston rod, it is characterised in that：The first piston left side is provided with piston rod lubricating sleeve.
2. a kind of engineering machinery oil hydraulic cylinder according to claim 1, it is characterised in that：The second piston and cylinder body it
Between be provided with dust ring, guide ring.
3. a kind of engineering machinery oil hydraulic cylinder according to claim 1, it is characterised in that：The second piston and piston rod
Between be provided with O-ring seals.
4. a kind of engineering machinery oil hydraulic cylinder according to claim 1, it is characterised in that：The piston rod afterbody and cylinder body
Between be provided with rear end cushion collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621224996.5U CN206268166U (en) | 2016-11-14 | 2016-11-14 | A kind of engineering machinery oil hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621224996.5U CN206268166U (en) | 2016-11-14 | 2016-11-14 | A kind of engineering machinery oil hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206268166U true CN206268166U (en) | 2017-06-20 |
Family
ID=59041324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621224996.5U Expired - Fee Related CN206268166U (en) | 2016-11-14 | 2016-11-14 | A kind of engineering machinery oil hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206268166U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778570A (en) * | 2019-11-11 | 2020-02-11 | 合肥合锻智能制造股份有限公司 | Double-plunger type return oil cylinder device |
| CN112412923A (en) * | 2020-11-27 | 2021-02-26 | 徐州徐工液压件有限公司 | Flange type connecting vertical hydraulic cylinder with embedded guide sleeve |
| CN113803319A (en) * | 2021-09-29 | 2021-12-17 | 深圳市宽田科技有限公司 | Cylinder with internal driving lubricating function |
-
2016
- 2016-11-14 CN CN201621224996.5U patent/CN206268166U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778570A (en) * | 2019-11-11 | 2020-02-11 | 合肥合锻智能制造股份有限公司 | Double-plunger type return oil cylinder device |
| CN110778570B (en) * | 2019-11-11 | 2021-11-02 | 合肥合锻智能制造股份有限公司 | Double-plunger type return oil cylinder device |
| CN112412923A (en) * | 2020-11-27 | 2021-02-26 | 徐州徐工液压件有限公司 | Flange type connecting vertical hydraulic cylinder with embedded guide sleeve |
| CN113803319A (en) * | 2021-09-29 | 2021-12-17 | 深圳市宽田科技有限公司 | Cylinder with internal driving lubricating function |
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Legal Events
| 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: 20170620 Termination date: 20171114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |