CN206495843U - A kind of single rod high-pressure balancing oil cylinder rear end cap - Google Patents
A kind of single rod high-pressure balancing oil cylinder rear end cap Download PDFInfo
- Publication number
- CN206495843U CN206495843U CN201720004025.8U CN201720004025U CN206495843U CN 206495843 U CN206495843 U CN 206495843U CN 201720004025 U CN201720004025 U CN 201720004025U CN 206495843 U CN206495843 U CN 206495843U
- Authority
- CN
- China
- Prior art keywords
- rear end
- end cap
- support hole
- limited support
- piston rod
- 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.)
- Expired - Fee Related
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Abstract
The utility model is related to a kind of single rod high-pressure balancing oil cylinder rear end cap, rear end cap main body co-axial seal is packed in axial one end of cylinder body, the coaxial only one of which limited support hole in the middle part of the rear end cap main body of side for installing cylinder body, the coaxial end for being embedded with piston rod in limited support hole, piston rod coaxial spacing movement in limited support hole under driving force effect, the internal orifice in limited support hole and the contact position of piston rod are formed with the outer wall that sealing bulge loop is fitted close piston rod；Limited support hole is blind hole structure, and a steam vent is formed with the bottom in limited support hole, and an exhaust outlet for leading to outside is fixed with the steam vent.The utility model reasonable in design, composition is simple and reliable, and fault rate is low, the cavity of piston both sides is rod chamber, it is ensured that lifting activity flexibility on the premise of sealing, mitigates abrasion, and service life is long, from the functional reliability and whole service life of lift elements.
Description
Technical field
The utility model is applied to high-voltage oil cylinder field, especially a kind of single rod high-pressure balancing oil cylinder rear end cap.
Background technology
Hydraulic cylinder is that hydraulic energy is changed into mechanical energy, the hydraulic actuator of straight reciprocating motion is done.The letter of its structure
Single, reliable operation.Realized with it during reciprocating motion, can remove deceleration device from, and without drive gap, stable movement, because
This is used widely in various mechanical hydraulic systems.At present, single pole hydraulic jack internal structure is that piston one side is fixedly mounted with
Piston rod, drives piston to be moved back and forth in cylinder block by hydraulic oil, but cylinder body is divided into rod chamber and nothing by piston
The motion mode of rod cavity, occurs both sides force unbalance in piston rod driving, and the problem of Bit andits control is inaccurate influences defeated
Go out pressure and job stability.
Utility model content
The purpose of this utility model is to overcome in place of the deficiencies in the prior art that there is provided a kind of single rod high-pressure balancing oil cylinder
Rear end cap, using metal structure as rack body, strengthens service life, mitigates abrasion.
The utility model solves its technical problem and takes following technical scheme to realize：
A kind of single rod high-pressure balancing oil cylinder rear end cap, rear end cap main body co-axial seal is packed in axial one end of cylinder body,
It is characterized in that：Coaxial only one of which limited support hole, limited support hole in the middle part of the rear end cap main body of side for installing cylinder body
The interior coaxial end for being embedded with piston rod, piston rod coaxial spacing movement in limited support hole under driving force effect is spacing
The internal orifice of supported hole and the contact position of piston rod are formed with the outer wall that sealing bulge loop is fitted close piston rod；Limited support hole is blind
Pore structure, a steam vent is formed with the bottom in limited support hole, and an exhaust outlet for leading to outside is fixed with the steam vent.
Moreover, the radial direction side of rear end cap main body is formed with an oiling passage, oiling passage connection inner chamber of cylinder block and outside
Oiling equipment.
Moreover, an O-ring is embedded with the middle part of the link position of rear end cap and cylinder body, after the radially inner side of the O-ring
The end face of end cover body is formed with an annular groove, and the bulge loop coordinated with the annular groove is formed with the axial end of cylinder body, embedded
In annular groove.
Moreover, an oblique annular section is formed with the rear end cap main body end face periphery of the radial outside of O-ring, in cylinder body
Axial end is formed with the wedge shape setting-in ring structure with the oblique annular engagement.
Advantage of the present utility model and good effect are：
The utility model reasonable in design, composition is simple and reliable, and fault rate is low, and the cavity of piston both sides is to have bar
Chamber, it is ensured that lifting activity flexibility on the premise of sealing, mitigates abrasion, and service life is long, from the work of lift elements
Reliability and whole service life.
Brief description of the drawings
Fig. 1 is half-sectional structural representation of the present utility model；
Fig. 2 is the left view of rear end cap.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by specific embodiment, following examples are to retouch
The property stated, be not limited, it is impossible to limit protection domain of the present utility model with this.
A kind of single rod high-pressure balancing oil cylinder rear end cap, is a cylindrical steel ladder knot referring to rear end cap main body shown in accompanying drawing 1
Structure, the co-axial seal of this rear end cap main body 2 is packed in axial one end of cylinder body 7, in the rear end cap main body of side of cylinder body is installed
The coaxial end for being embedded with piston rod 6 in the coaxial only one of which limited support hole in portion, limited support hole, piston rod is in driving masterpiece
The coaxial spacing movement in limited support hole under, the internal orifice in limited support hole and the contact position of piston rod are formed with sealing bulge loop
5 outer walls for being fitted close piston rod ensure being slidingly sealed property；
Limited support hole is blind hole structure, is formed with a steam vent in the bottom in limited support hole, is fixed with the steam vent
One leads to the exhaust outlet 1 of outside, for balancing pressure in limited support hole.
The structure of rear end cap is formed with an oiling passage 9 referring to accompanying drawing, the radial direction side of rear end cap main body, and the oiling passage connects
Logical inner chamber of cylinder block and outside oiling equipment, for input or pressure oil output；
The outer end outer of rear end cap is made as circular arc chamfering, it is to avoid damage of colliding with.
In order to ensure the connection sealing of rear end cap and cylinder body, an O is embedded with the middle part of the link position of rear end cap and cylinder body
Shape ring 3, is formed with an annular groove 4, in the axial end system of cylinder body in the end face of the rear end cap main body of the radially inner side of the O-ring
There is the bulge loop coordinated with the annular groove, it is embedded to be arranged in annular groove；In the rear end cap main body of the radial outside of the O-ring
End face periphery is formed with an oblique annular section 8, and the wedge shape setting-in ring with the oblique annular engagement is formed with the axial end of cylinder body
Structure.
Although disclosing embodiment of the present utility model and accompanying drawing for the purpose of illustration, those skilled in the art can be with
Understand：Do not departing from the utility model and spirit and scope of the appended claims, it is various replace, change and modifications all be can
Can, therefore, scope of the present utility model is not limited to embodiment and accompanying drawing disclosure of that.
Claims (4)
1. a kind of single rod high-pressure balancing oil cylinder rear end cap, rear end cap main body co-axial seal is packed in axial one end of cylinder body, its
It is characterised by：In the middle part of the rear end cap main body of side for installing cylinder body in coaxial only one of which limited support hole, limited support hole
The coaxial end for being embedded with piston rod, piston rod coaxial spacing movement, spacing branch in limited support hole under driving force effect
The contact position of the internal orifice and piston rod that support hole is formed with the outer wall that sealing bulge loop is fitted close piston rod；Limited support hole is blind hole
Structure, a steam vent is formed with the bottom in limited support hole, and an exhaust outlet for leading to outside is fixed with the steam vent.
2. single rod high-pressure balancing oil cylinder rear end cap according to claim 1, it is characterised in that：The radial direction of rear end cap main body
Side is formed with an oiling passage, oiling passage connection inner chamber of cylinder block and outside oiling equipment.
3. single rod high-pressure balancing oil cylinder rear end cap according to claim 1, it is characterised in that：The company of rear end cap and cylinder body
Connect and be embedded with an O-ring in the middle part of position, an annular groove is formed with the end face of the rear end cap main body of the radially inner side of the O-ring,
The bulge loop coordinated with the annular groove is formed with the axial end of cylinder body, it is embedded to be arranged in annular groove.
4. single rod high-pressure balancing oil cylinder rear end cap according to claim 3, it is characterised in that：It is outside in the footpath of O-ring
The rear end cap main body end face periphery of side is formed with an oblique annular section, is formed with and the oblique annular engagement in the axial end of cylinder body
Wedge shape setting-in ring structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004025.8U CN206495843U (en) | 2017-01-03 | 2017-01-03 | A kind of single rod high-pressure balancing oil cylinder rear end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004025.8U CN206495843U (en) | 2017-01-03 | 2017-01-03 | A kind of single rod high-pressure balancing oil cylinder rear end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206495843U true CN206495843U (en) | 2017-09-15 |
Family
ID=59802873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720004025.8U Expired - Fee Related CN206495843U (en) | 2017-01-03 | 2017-01-03 | A kind of single rod high-pressure balancing oil cylinder rear end cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206495843U (en) |
-
2017
- 2017-01-03 CN CN201720004025.8U patent/CN206495843U/en not_active Expired - Fee Related
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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: 20170915 Termination date: 20200103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |