CN104235358A - Hydraulic cylinder piston and hydraulic cylinder with same - Google Patents
Hydraulic cylinder piston and hydraulic cylinder with same Download PDFInfo
- Publication number
- CN104235358A CN104235358A CN201310227408.8A CN201310227408A CN104235358A CN 104235358 A CN104235358 A CN 104235358A CN 201310227408 A CN201310227408 A CN 201310227408A CN 104235358 A CN104235358 A CN 104235358A
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- piston
- cylinder
- cover plate
- hydraulic cylinder
- piston rod
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Abstract
The invention relates to a hydraulic cylinder piston and a hydraulic cylinder with the same. The piston structurally comprises a cover plate and a circular cylinder, an opening in one end of the circular cylinder is sealed by the cover plate, and the cover plate is provided with a threaded hole connected with a piston rod, so that the weight of the piston and material cost are effectively reduced. In addition, three annular grooves for mounting a sealing ring are formed in the outer edge of the piston, and the sealing performance of the piston and a cylinder body is effectively improved. The piston is simple in structure, scientific and reasonable in design and simple to mount, and the cost of the piston is effectively reduced.
Description
Technical field
The invention belongs to oil hydraulic cylinder technical field, specifically, is a kind of hydraulic cylinder piston and the oil hydraulic cylinder using this piston thereof.
Background technique
The piston used in traditional oil hydraulic cylinder normally molten iron is cast into an entirety, then piston rod and piston is solidly installed, and piston rod drives piston to do linear reciprocating motion in cylinder body.
Above-mentioned piston Problems existing is: piston is wearout parts, and disassembly process is complicated, the waste plenty of time, because its volume is large, and has certain weight, require great effort very much, and its cost of material is higher during replacing.
How to alleviate the weight of piston and to improve its wear resistance be the key issue that need solve at present.
By retrieval, find following patent publication us related with the present patent application, publication number is CN201368085, the document discloses a kind of single-action sleeve type hydraulic cylinder, comprise outer cover, outer cylinder, multistage cylinder barrel, overcoat is fixed on the outer wall of outer cylinder, the barrel of outer cylinder is provided with fuel inlet fitting, the sequentially classification of multistage cylinder barrel is arranged on outer cylinder inside, spacing by the step bottom cylinder barrel between cylinder barrel at different levels, step bottom every grade of cylinder barrel is equipped with oil leak hole, distance between the center line of described every grade of cylinder barrel tail end oil leak hole and this grade of cylinder barrel bottom stage end face is 2.0 ~ 2.45cm.
By contrast, above-mentioned patent publication us and present patent application have relatively big difference in technological scheme.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide hydraulic cylinder piston and use the oil hydraulic cylinder of this piston, this piston uses material few, lightweight, is easy to dismounting.
Technical solution of the present invention is achieved in that
A kind of hydraulic cylinder piston, is characterized in that: the structure of described piston is a cylindrical tube, and the opening of this cylindrical tube encapsulates a cover plate, and this cover plate is shaped with one for connecting the tapped hole of piston rod.
And the inboard end face of described cover plate is integrally shaped with an annular protrusion, and this annular protrusion and cover plate are coaxially shaped with a tapped hole coordinated with piston rod.
And the outer rim coaxial spaced of described piston is shaped with three annular grooves.
A kind of oil hydraulic cylinder, comprise cylinder body, cylinder body two ends are sealed and installed with cylinder cap and cylinder bottom respectively, in cylinder cap, coaxial slip installs a piston rod, one end of this piston rod is fixed with piston, the other end of this piston rod is positioned at cylinder body outside and is fixedly mounted with suspension ring, these suspension ring and piston rod are solidly installed, cylinder body end walls is separately installed with filler opening and oil outlet, it is characterized in that: the structure of described piston is a cylindrical tube, the opening of this cylindrical tube encapsulates a cover plate, and this cover plate is shaped with one for connecting the tapped hole of piston rod.
And the structure of described cylinder cap is a cylindrical structure, and the outer rim of this cylinder cap and inboard wall of cylinder block coaxially install a seal ring, coaxially installs a dust-proof cushion in the outboard end of cylinder cap.
Advantage of the present invention and good effect are:
This piston comprises cover plate and circular cylinder body, and cover plate is encapsulated in the one end open place of circular cylinder body, thus effectively reduces the weight of piston, reduces cost of material; In addition, being shaped with three for installing the annular groove of seal ring in piston outer rim, effectively improve the sealability of piston and cylinder body.Structure of the present invention is simple, design science reasonable, installs simple, effectively reduces the cost of piston.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
Plant hydraulic cylinder piston, as shown in Figure 1, comprise cylinder body 5, cylinder body two ends are sealed and installed with cylinder cap 2 and cylinder bottom 12 respectively, in cylinder cap, coaxial slip installs a piston rod 6, and one end of this piston rod is fixed with piston 9, and the other end of this piston rod is positioned at cylinder body outside and is fixedly mounted with suspension ring 1, these suspension ring and piston rod are solidly installed, and cylinder body end walls are separately installed with filler opening 4 and oil outlet 11.
In the present embodiment, the structure of described piston is a cylindrical tube, opening seal welding one cover plate 7 of this cylindrical tube, the inboard end face of this cover plate is integrally shaped with an annular protrusion 8, this annular protrusion and cover plate are coaxially shaped with a tapped hole coordinated with piston rod, in this tapped hole, co-axial seal connects piston rod, and this structure effectively reduces the weight of piston, reduces cost of material; The outer rim of piston is coaxially shaped with three annular grooves, is embedded with O RunddichtringO 10 in corresponding each annular groove, this arrangement enhances the sealability of piston and inboard wall of cylinder block.
The structure of described cylinder cap is a cylindrical structure, the outer rim of this cylinder cap and inboard wall of cylinder block coaxially install a seal ring 3, coaxially install a dust-proof cushion 13 in the outboard end of cylinder cap, and the cylinder cap of this structure has taken into account the function of guide sleeve, install simple, ensure that hydraulic cylinder works operates steadily reliably.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a hydraulic cylinder piston, is characterized in that: the structure of described piston is a cylindrical tube, and the opening of this cylindrical tube encapsulates a cover plate, and this cover plate is shaped with one for connecting the tapped hole of piston rod.
2. hydraulic cylinder piston according to claim 1, is characterized in that: the inboard end face of described cover plate is integrally shaped with an annular protrusion, and this annular protrusion and cover plate are coaxially shaped with a tapped hole coordinated with piston rod.
3. hydraulic cylinder piston according to claim 1, is characterized in that: the outer rim coaxial spaced of described piston is shaped with three annular grooves.
4. an oil hydraulic cylinder, comprise cylinder body, cylinder body two ends are sealed and installed with cylinder cap and cylinder bottom respectively, in cylinder cap, coaxial slip installs a piston rod, one end of this piston rod is fixed with piston, the other end of this piston rod is positioned at cylinder body outside and is fixedly mounted with suspension ring, these suspension ring and piston rod are solidly installed, cylinder body end walls is separately installed with filler opening and oil outlet, it is characterized in that: the structure of described piston is a cylindrical tube, the opening of this cylindrical tube encapsulates a cover plate, and this cover plate is shaped with one for connecting the tapped hole of piston rod.
5. oil hydraulic cylinder according to claim 4, is characterized in that: the structure of described cylinder cap is a cylindrical structure, and the outer rim of this cylinder cap and inboard wall of cylinder block coaxially install a seal ring, coaxially installs a dust-proof cushion in the outboard end of cylinder cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310227408.8A CN104235358A (en) | 2013-06-08 | 2013-06-08 | Hydraulic cylinder piston and hydraulic cylinder with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310227408.8A CN104235358A (en) | 2013-06-08 | 2013-06-08 | Hydraulic cylinder piston and hydraulic cylinder with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104235358A true CN104235358A (en) | 2014-12-24 |
Family
ID=52224004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310227408.8A Pending CN104235358A (en) | 2013-06-08 | 2013-06-08 | Hydraulic cylinder piston and hydraulic cylinder with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104235358A (en) |
-
2013
- 2013-06-08 CN CN201310227408.8A patent/CN104235358A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |