CN108386409A - Protective hydraulic oil cylinder - Google Patents
Protective hydraulic oil cylinder Download PDFInfo
- Publication number
- CN108386409A CN108386409A CN201810201533.4A CN201810201533A CN108386409A CN 108386409 A CN108386409 A CN 108386409A CN 201810201533 A CN201810201533 A CN 201810201533A CN 108386409 A CN108386409 A CN 108386409A
- Authority
- CN
- China
- Prior art keywords
- gum cover
- rubber gum
- extension rubber
- piston rod
- cylinder
- 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
-
- 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
- F15B15/1457—Piston rods
-
- 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
- F15B15/1457—Piston rods
- F15B15/1461—Piston rod sealings
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention announces a kind of protective hydraulic oil cylinder, belongs to hydraulic device technical field.Including cylinder body, piston, piston rod, cylinder cap and pouring orifice；The piston rod outer end is equipped with shelves platform, and upper cover of piston rod is equipped with extension rubber gum cover；The extension rubber gum cover；Extension rubber gum cover one end is fixedly connected with shelves platform, and the extension rubber gum cover other end is fixedly connected with cylinder cap, and there are gaps between extension rubber gum cover and piston rod；The venthole in gap between extension rubber gum cover and piston rod is connected to there are one being opened on the shelves platform；The ventilation outer end of hole is connected with tracheae, and the tracheae is connected with air bag.The present invention is by being arranged extension rubber gum cover, and the part that piston rod is exposed to cylinder body is isolated from the outside sealing, and waterproof and dustproof, anticorrosion have effectively ensured the normal work of oil cylinder, extended service life；In addition, the setting of air bag protects extension rubber gum cover, extend its service life.
Description
Technical field
The present invention relates to hydraulic device technical field, specifically a kind of protective hydraulic oil cylinder.
Background technology
Hydraulic cylinder is the executive component in Hydraulic Power Transmission System, it is the energy conversion converted hydraulic energy to mechanical energy
Device, for driving operating mechanism to make straight reciprocating motion or reciprocally swinging.Hydraulic cylinder generally comprises cylinder barrel and piston rod group
Part, piston rod assembly include piston and piston rod.Wherein, piston is fixedly connected on the end of piston rod, the outer circumference surface of piston
It is slidably matched with inner cavity of cylinder, inner cavity of cylinder is separated into rod chamber and rodless cavity by piston, and in rod chamber or rodless cavity
One of chamber it is oil-filled and push piston driving piston rod move, to make piston rod stretch out cylinder barrel drive operating mechanism.
Existing hydraulic cylinder, which is designed with dustband, to be used for stopping extraneous dust, but in the long-term reciprocating motion of piston rod
In, not only piston rod is chronically exposed to outer, and subject to damage, dustband can also loosen deformation, and dust, sewage is easily made to enter cylinder body,
Performance is influenced, is shortened the working life.
Invention content
In order to solve the above technical problems, the present invention provides a kind of protective hydraulic oil cylinder.
The invention is realized by the following technical scheme：A kind of protective hydraulic oil cylinder, including cylinder body, piston, piston rod, cylinder
Lid and pouring orifice；The piston is placed in cylinder body and is fixedly connected with piston rod；The pouring orifice is located on cylinder body, in cylinder body
Chamber is connected to；The piston rod passes through cylinder cap, the piston rod outer end to be equipped with shelves platform, and upper cover of piston rod is equipped with extension rubber gum cover；Institute
State extension rubber gum cover；Extension rubber gum cover one end is fixedly connected with shelves platform, and the extension rubber gum cover other end is fixedly connected with cylinder cap,
There are gaps between extension rubber gum cover and piston rod；Opened on the shelves platform there are one be connected to extension rubber gum cover and piston rod it
Between gap venthole；The ventilation outer end of hole is connected with tracheae, and the tracheae is connected with air bag.
Preferably：The both ends of the extension rubber gum cover are fixed with ring flange；The ring flange at extension rubber gum cover both ends leads to respectively
Cross washer, bolt and shelves platform, cylinder cap connection.
Preferably：The extension rubber gum cover is the cylindrical drum of pleated structure.
Preferably：The extension rubber gum cover is the conically shaped of pleated structure.
Compared with prior art, the beneficial effects of the invention are as follows：By the way that extension rubber gum cover is arranged, piston rod is exposed into cylinder body
Part be isolated from the outside sealing, waterproof and dustproof, anticorrosion have effectively ensured the normal work of oil cylinder, have extended using the longevity
Life；In addition, the flexible of piston rod will drive extension rubber gum cover to stretch together, this will cause extension rubber gum cover inner space to become
Change, expands the lower damage that can accelerate extension rubber gum cover for a long time, therefore the present invention devises one and extension rubber gum cover inner space
The air bag of connection；Air bag can both ensure there is certain air pressure in extension rubber gum cover so that extension rubber gum cover not with piston rod
Fitting, and when can ensure that extension rubber gum cover is retracted, in air pressure will not rise excessively high, to swelling transition, protect and stretch
Contracting rubber sleeve extends its service life.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：1, cylinder body；2, piston；3, piston rod；3-1, shelves platform；3-2, venthole；4, cylinder cap；5, pouring orifice；6, it stretches
Contracting rubber sleeve；6-1, ring flange；7, tracheae；8, air bag.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of protective hydraulic oil cylinder, including cylinder body 1, piston 2, piston rod 3, cylinder cap 4 and pouring orifice 5；
The piston 2 is placed in cylinder body 1 and is fixedly connected with piston rod 3；The pouring orifice 5 is located on cylinder body 1, connects with 1 inner cavity of cylinder body
It is logical；The piston rod 3 passes through cylinder cap 4.
The present invention's thes improvement is that：3 outer end of piston rod is equipped with shelves platform 3-1, and extension rubber gum cover is set on piston rod 3
6；The both ends of extension rubber gum cover 6 are fixed with ring flange 6-1；The ring flange 6-1 at 6 both ends of extension rubber gum cover passes through washer, spiral shell respectively
Bolt is connect with shelves platform 3-1, cylinder cap 4.Extension rubber gum cover 6 is using the cylindrical drum of pleated structure or the conically shaped of pleated structure.It stretches
There are gap between contracting rubber sleeve 6 and piston rod 3, opened on shelves platform 3-1 there are one being connected to extension rubber gum cover 6 and piston rod 3
Between gap venthole 3-2；The outer ends venthole 3-2 are connected with tracheae 7, and tracheae 7 is connected with air bag 8.
By the way that extension rubber gum cover is arranged, the part that piston rod is exposed to cylinder body is isolated from the outside sealing the present invention, and waterproof is prevented
Dirt, anticorrosion have effectively ensured the normal work of oil cylinder, have extended service life.
In addition, the flexible of piston rod will drive extension rubber gum cover to stretch together, this will lead to extension rubber gum cover inner space
It changes, expands the lower damage that can accelerate extension rubber gum cover for a long time, therefore the present invention devises in one and extension rubber gum cover
The air bag of portion space connection；Air bag can both ensure there is certain air pressure in extension rubber gum cover so that extension rubber gum cover not with
Piston rod is bonded, and when can ensure that extension rubber gum cover is retracted, in air pressure will not rise excessively high, to swelling transition, protect
Extension rubber gum cover has been protected, its service life is extended.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of protective hydraulic oil cylinder, including cylinder body（1）, piston（2）, piston rod（3）, cylinder cap（4）And pouring orifice（5）；Institute
State piston（2）It is placed in cylinder body（1）Interior and and piston rod（3）It is fixedly connected；The pouring orifice（5）Positioned at cylinder body（1）On, with cylinder body
（1）Inner cavity is connected to；The piston rod（3）Across cylinder cap（4）, it is characterised in that：
The piston rod（3）Outer end is equipped with shelves platform（3-1）, piston rod（3）On be set with extension rubber gum cover（6）；The extension rubber
Gum cover（6）；The extension rubber gum cover（6）One end and shelves platform（3-1）It is fixedly connected, extension rubber gum cover（6）The other end and cylinder cap（4）
It is fixedly connected, extension rubber gum cover（6）With piston rod（3）Between there are gaps；In the shelves platform（3-1）On open there are one being connected to
Extension rubber gum cover（6）With piston rod（3）Between gap venthole（3-2）；The venthole（3-2）Outer end is connected with tracheae
（7）, the tracheae（7）It is connected with air bag（8）.
2. protective hydraulic oil cylinder according to claim 1, it is characterised in that：The extension rubber gum cover（6）Both ends it is solid
Surely there is ring flange（6-1）；Extension rubber gum cover（6）The ring flange at both ends（6-1）Pass through washer, bolt and shelves platform respectively（3-1）, cylinder
Lid（4）Connection.
3. protective hydraulic oil cylinder according to claim 1, it is characterised in that：The extension rubber gum cover（6）For fold knot
The cylindrical drum of structure.
4. protective hydraulic oil cylinder according to claim 1, it is characterised in that：The extension rubber gum cover（6）For fold knot
The conically shaped of structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201533.4A CN108386409A (en) | 2018-03-12 | 2018-03-12 | Protective hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201533.4A CN108386409A (en) | 2018-03-12 | 2018-03-12 | Protective hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108386409A true CN108386409A (en) | 2018-08-10 |
Family
ID=63067466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810201533.4A Pending CN108386409A (en) | 2018-03-12 | 2018-03-12 | Protective hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108386409A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630583A (en) * | 2019-09-27 | 2019-12-31 | 上海三一重机股份有限公司 | Hydraulic cylinder protector and engineering vehicle |
| CN110864026A (en) * | 2019-11-21 | 2020-03-06 | 衡阳市林肯液压设备有限公司 | Buffering hydraulic cylinder with good sealing performance |
| CN110937190A (en) * | 2019-12-06 | 2020-03-31 | 浙江厚达智能科技股份有限公司 | Method for preventing object clamping during cylinder retraction |
| CN111350718A (en) * | 2020-02-22 | 2020-06-30 | 襄阳永力通机械有限公司 | Hydro-cylinder protector convenient to dismantle |
| CN112814966A (en) * | 2020-12-29 | 2021-05-18 | 常德迪格机械制造有限公司 | Hydraulic oil cylinder body and manufacturing method thereof |
| CN113958557A (en) * | 2021-10-15 | 2022-01-21 | 浙江中铭工程机械有限公司 | Middle arm oil cylinder with protection function |
| CN113983026A (en) * | 2021-10-12 | 2022-01-28 | 中国重型机械研究院股份公司 | Long-life high-frequency actuating servo hydraulic cylinder |
| CN114458656A (en) * | 2022-04-13 | 2022-05-10 | 徐州强宏液压科技有限公司 | Hydraulic oil cylinder with axial support protection |
| CN114568072A (en) * | 2022-03-15 | 2022-06-03 | 合肥绿叶生态园林集团有限公司 | Greening ecological restoration system |
-
2018
- 2018-03-12 CN CN201810201533.4A patent/CN108386409A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630583A (en) * | 2019-09-27 | 2019-12-31 | 上海三一重机股份有限公司 | Hydraulic cylinder protector and engineering vehicle |
| CN110864026A (en) * | 2019-11-21 | 2020-03-06 | 衡阳市林肯液压设备有限公司 | Buffering hydraulic cylinder with good sealing performance |
| CN110937190A (en) * | 2019-12-06 | 2020-03-31 | 浙江厚达智能科技股份有限公司 | Method for preventing object clamping during cylinder retraction |
| CN110937190B (en) * | 2019-12-06 | 2021-08-20 | 浙江厚达智能科技股份有限公司 | Method for preventing object clamping during cylinder retraction |
| CN111350718B (en) * | 2020-02-22 | 2022-07-08 | 襄阳永力通机械有限公司 | Hydro-cylinder protector convenient to dismantle |
| CN111350718A (en) * | 2020-02-22 | 2020-06-30 | 襄阳永力通机械有限公司 | Hydro-cylinder protector convenient to dismantle |
| CN112814966A (en) * | 2020-12-29 | 2021-05-18 | 常德迪格机械制造有限公司 | Hydraulic oil cylinder body and manufacturing method thereof |
| CN112814966B (en) * | 2020-12-29 | 2023-04-25 | 常德迪格机械制造有限公司 | Hydraulic cylinder body and manufacturing method thereof |
| CN113983026A (en) * | 2021-10-12 | 2022-01-28 | 中国重型机械研究院股份公司 | Long-life high-frequency actuating servo hydraulic cylinder |
| CN113958557A (en) * | 2021-10-15 | 2022-01-21 | 浙江中铭工程机械有限公司 | Middle arm oil cylinder with protection function |
| CN113958557B (en) * | 2021-10-15 | 2023-11-24 | 浙江中铭工程机械有限公司 | Middle arm oil cylinder with protection function |
| CN114568072A (en) * | 2022-03-15 | 2022-06-03 | 合肥绿叶生态园林集团有限公司 | Greening ecological restoration system |
| CN114568072B (en) * | 2022-03-15 | 2024-04-09 | 合肥绿叶生态园林集团有限公司 | Greening ecological restoration system |
| CN114458656B (en) * | 2022-04-13 | 2022-07-12 | 徐州强宏液压科技有限公司 | Hydraulic oil cylinder with axial support protection |
| CN114458656A (en) * | 2022-04-13 | 2022-05-10 | 徐州强宏液压科技有限公司 | Hydraulic oil cylinder with axial support protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180810 |
|
| WD01 | Invention patent application deemed withdrawn after publication |