CN108412835A - Hydraulic cylinder with piston rod protection - Google Patents
Hydraulic cylinder with piston rod protection Download PDFInfo
- Publication number
- CN108412835A CN108412835A CN201810186331.7A CN201810186331A CN108412835A CN 108412835 A CN108412835 A CN 108412835A CN 201810186331 A CN201810186331 A CN 201810186331A CN 108412835 A CN108412835 A CN 108412835A
- Authority
- CN
- China
- Prior art keywords
- piston rod
- gum cover
- rubber gum
- extension rubber
- 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
-
- 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
- F15B15/1447—Pistons; Piston to piston rod assemblies
- F15B15/1452—Piston sealings
-
- 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
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The present invention announces a kind of hydraulic cylinder with piston rod protection, belongs to hydraulic device technical field.Including cylinder body, piston, piston rod, cylinder cap and pouring orifice；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 equipped with air cleaner.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.It in addition, air cleaner can not only ensure to connect with the external world inside extension rubber gum cover, but also can prevent extraneous dust from entering, be further ensured that piston rod exposes the cleaning of the part of cylinder body.
Description
Technical field
The present invention relates to hydraulic device technical field, specifically a kind of hydraulic cylinder with piston rod protection.
Background technology
The hydraulic industry in China passes through nearly development in 50 years, has had quite production strength and technical merit, can expire substantially
The primary demand of sufficient economic development, wherein the mating rate of great outfit has reached 60% or more.Especially downstream in the past 10 years
The Fast Growth of industry has actively promoted the growth of Hydraulic Industry.Oil cylinder be product the most ripe in China's hydraulic product it
One.Industry keeps rapid growth for many years, has formd more mature supply and demand chain, has had larger market scale.
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 hydraulic cylinder with piston rod protection.
The invention is realized by the following technical scheme：A kind of hydraulic cylinder with piston rod protection, including cylinder body, work
Plug, piston rod, cylinder cap and pouring orifice；The piston is placed in cylinder body and is fixedly connected with piston rod；The pouring orifice is located at cylinder
On body, it is connected to inner chamber of cylinder block；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；The extension rubber gum cover；Extension rubber gum cover one end is fixedly connected with shelves platform, the extension rubber gum cover other end with
Cylinder cap is fixedly connected, and there are gaps between extension rubber gum cover and piston rod；It is connected to extension rubber there are one being opened on the shelves platform
The venthole in gap between gum cover and piston rod；The ventilation outer end of hole is equipped with air cleaner.
Preferably：The air cleaner venthole is fixedly connected with tracheae；The tracheae end is provided with external screw thread；It is described
Venthole inner wall is provided with internal thread；Tracheae end is connected through a screw thread in venthole.
Preferably：It is cased with rubber washer on the tracheae.
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 present invention devises an air cleaner being connected to extension rubber gum cover inner space；Air cleaner both can be with
Ensure to connect with the external world inside extension rubber gum cover, and can prevent extraneous dust from entering, is further ensured that piston rod exposes cylinder body
Partial cleaning.
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, air cleaner；8, tracheae；9, rubber washer.
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 hydraulic cylinder with piston rod protection, including cylinder body 1, piston 2, piston rod 3, cylinder cap 4
With 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, with cylinder
1 inner cavity of body is connected to；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, venthole 3-2 inner walls are provided with internal thread.7 venthole of air cleaner is fixedly connected with tracheae 8；
8 end of tracheae is provided with external screw thread；8 end of tracheae is connected through a screw thread in venthole 3-2.It is cased with rubber pad on tracheae 8
Circle 9.
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 present invention devise one with stretch
The air cleaner of contracting rubber sleeve inner space connection；Air cleaner can both ensure to connect with extraneous inside extension rubber gum cover
It connects, and can prevent extraneous dust from entering, be further ensured that piston rod exposes the cleaning of the part of cylinder body.
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 (6)
1. a kind of hydraulic cylinder with piston rod protection, including cylinder body（1）, piston（2）, piston rod（3）, cylinder cap（4）And note
Hydraulic fluid port（5）；The 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 equipped with air filter
Clear device（7）.
2. the hydraulic cylinder according to claim 1 with piston rod protection, it is characterised in that：The air cleaner
（7）Venthole is fixedly connected with tracheae（8）；The tracheae（8）End is provided with external screw thread；The venthole（3-2）Inner wall is provided with
Internal thread；Tracheae（8）End is connected through a screw thread mounted on venthole（3-2）It is interior.
3. the hydraulic cylinder according to claim 1 with piston rod protection, it is characterised in that：The tracheae（8）Upper set
There is rubber washer（9）.
4. the hydraulic cylinder according to claim 1 with piston rod protection, it is characterised in that：The extension rubber gum cover
（6）Both ends be fixed with ring flange（6-1）；Extension rubber gum cover（6）The ring flange at both ends（6-1）Respectively by washer, bolt with
Shelves platform（3-1）, cylinder cap（4）Connection.
5. the hydraulic cylinder according to claim 1 with piston rod protection, it is characterised in that：The extension rubber gum cover
（6）For the cylindrical drum of pleated structure.
6. the hydraulic cylinder according to claim 1 with piston rod protection, it is characterised in that：The extension rubber gum cover
（6）For the conically shaped of pleated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810186331.7A CN108412835A (en) | 2018-03-07 | 2018-03-07 | Hydraulic cylinder with piston rod protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810186331.7A CN108412835A (en) | 2018-03-07 | 2018-03-07 | Hydraulic cylinder with piston rod protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108412835A true CN108412835A (en) | 2018-08-17 |
Family
ID=63130346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810186331.7A Pending CN108412835A (en) | 2018-03-07 | 2018-03-07 | Hydraulic cylinder with piston rod protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108412835A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178005A (en) * | 2020-09-25 | 2021-01-05 | 韩振华 | Tunneling hydraulic cylinder |
| 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 |
-
2018
- 2018-03-07 CN CN201810186331.7A patent/CN108412835A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178005A (en) * | 2020-09-25 | 2021-01-05 | 韩振华 | Tunneling hydraulic cylinder |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180817 |