CN208764019U - A kind of interlayer makees the two-action multi-stage cylinder of oil supply gallery - Google Patents
A kind of interlayer makees the two-action multi-stage cylinder of oil supply gallery Download PDFInfo
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- CN208764019U CN208764019U CN201821208530.5U CN201821208530U CN208764019U CN 208764019 U CN208764019 U CN 208764019U CN 201821208530 U CN201821208530 U CN 201821208530U CN 208764019 U CN208764019 U CN 208764019U
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- outer layer
- piston rod
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Abstract
The utility model relates to a kind of two-action multi-stage cylinders for making oil supply gallery with interlayer, it is welded by piston, bar outer layer, bar internal layer and guide sleeve are integrated, wherein piston is arranged on the outside of cylinder barrel, and it is made of chopped-off head piston rod assembly, second piston bar assembly and three-level piston rod assembly, wherein second piston bar assembly and three-level piston rod assembly are divided into bar internal layer and bar outer layer, outer layer aperture is provided on bar outer layer, bar internal layer is equipped with internal layer aperture, it is equipped with logical oily straight trough between bar outer layer and bar internal layer, three connects to realize the entering in cylinder barrel of oil liquid.Piston rod rigidity is not being influenced, under the premise of not increasing difficulty of processing, the fuel feeding to the rod chamber of Multi-stage cylinder is realized with most simple and effective way, achievees the purpose that piston rod bounces back, the limitation for overcoming hydraulic cylinder structure size itself to realize function.
Description
Technical field
The utility model belongs to Multi-stage cylinder technical field, is related to the two-action multi-stage cylinder that a kind of interlayer makees oil supply gallery.
Background technique
Mechanical automation is one of the direction of modern mechanical development.Hydraulic technique is to realize the technology base of mechanical automation
Plinth.Executive component of the hydraulic cylinder as hydraulic unit, its successful operation are to realize the necessary condition of mechanical automation.According to existing
The requirement of real use condition, multistage hydraulic cylinder is suitable for that stroke is big and locating distance or the small occasion of overall length, thus in given sky
It is interior to realize stroke longer than single stage hydraulic cylinder, it is widely used in the case where installation space anxiety, it is such hydraulic
Cylinder is divided into single-acting and two kinds of double acting by the mode of action of hydraulic oil, and flexible 2~5 grades of series differs.Such hydraulic cylinder is being answered
If retracting piston rod without external force in, this when must just use two-action multi-stage cylinder.Two-action multi-stage cylinder is routinely adopted
Mode with internal multi-stage casing is rod chamber fuel feeding, but when the cylinder diameter of hydraulic cylinder, bar diameter size are all smaller, it is clear that it is this
Mode just cannot achieve, because carrying out arranging multiplayer fuel feeding casing without enough spaces at all.
Utility model content
In order to overcome the disadvantages mentioned above of the prior art, the utility model provides the double acting that a kind of interlayer makees oil supply gallery
Multi-stage cylinder is not being influenced piston rod rigidity, under the premise of not increasing difficulty of processing, is being realized with most simple and effective way to multistage
The fuel feeding of the rod chamber of cylinder achievees the purpose that piston rod bounces back, the limitation for overcoming hydraulic cylinder structure size itself to realize function.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of interlayer makees the double cropping of oil supply gallery
With Multi-stage cylinder, it is welded by piston, bar outer layer, bar internal layer and guide sleeve are integrated, wherein piston is arranged on the outside of cylinder barrel, and by
Chopped-off head piston rod assembly, second piston bar assembly and three-level piston rod assembly composition, wherein second piston bar assembly and three-level are living
Stopper rod component is divided into bar internal layer and bar outer layer, is provided with outer layer aperture on bar outer layer, and bar internal layer is equipped with internal layer aperture, outside bar
It is equipped with logical oily straight trough between layer and bar internal layer, three connects to realize the entering in cylinder barrel of oil liquid.
Rod chamber hydraulic fluid port is equipped on the piston for flowing into oil liquid.
The piston end surface, which is equipped with cross recess, can prevent piston rod to be closed oil liquid when running to stroke terminal.
It is its in addition to chopped-off head piston rod the beneficial effects of the utility model are: make the mode of oil supply gallery with interlayer
His piston rods at different levels are divided into two layers inside and outside, are connected to rod chambers at different levels using the oil groove between inside and outside two layers, realize that piston rod returns
Contracting has the characteristics that structure is simple easy to accomplish, piston rod rigidity is not being influenced, under the premise of not increasing difficulty of processing, with most
Simple and effective way realizes the fuel feeding to the rod chamber of Multi-stage cylinder, achievees the purpose that piston rod bounces back, overcomes hydraulic cylinder itself
The limitation that structure size realizes function.
Detailed description of the invention
Fig. 1 is the utility model structure diagram；
Fig. 2 is the B direction view of Fig. 1；
Fig. 3 is C-C cross-sectional view in Fig. 1；
Fig. 4 is the A-A cross-sectional view of Fig. 2.
In figure: 1- piston；2- bar internal layer；3- bar outer layer；4- guide sleeve；5- cross recess；6- rod chamber hydraulic fluid port；7- chopped-off head is living
Stopper rod component；8- second piston bar assembly；9- three-level piston rod assembly；10- outer layer aperture；11- internal layer aperture；The logical oil of 12- is straight
Slot.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to figs. 1 to 4, a kind of interlayer makees the two-action multi-stage cylinder of oil supply gallery, by piston 1, bar outer layer 3, bar
Layer 2 and guide sleeve 4, which integrate, to be welded, and wherein piston 1 is arranged on the outside of cylinder barrel, and by chopped-off head piston rod assembly 7, second piston
Bar assembly 8 and three-level piston rod assembly 9 form, and wherein second piston bar assembly 8 and three-level piston rod assembly 9 divide for bar internal layer 2
With bar outer layer 3, outer layer aperture 10 is provided on bar outer layer 3, bar internal layer 2 is equipped with internal layer aperture 11, bar outer layer 3 and bar internal layer
It is equipped with logical oily straight trough 12 between 2, three connects to realize the entering in cylinder barrel of oil liquid.
Rod chamber hydraulic fluid port 6 is equipped on the piston 1 for flowing into oil liquid.
1 end face of piston, which is equipped with cross recess 5, can prevent 1 bar of piston from closing oil liquid when running to stroke terminal
Come.
The utility model interlayer makees the mode of oil supply gallery, is other 1 bars of piston at different levels in addition to 1 bar of chopped-off head piston
Two layers inside and outside being divided into, it is connected to rod chambers at different levels using the oil groove between inside and outside two layers, realizes 1 bar of piston retraction, there is structure
Simple feature easy to accomplish is not influencing piston 1 bar rigidity, under the premise of not increasing difficulty of processing, with most simply and effectively
Mode realizes the fuel feeding to the rod chamber of Multi-stage cylinder, achievees the purpose that 1 bar of piston bounces back, overcomes hydraulic cylinder structure size pair itself
The limitation that function is realized.
Claims (3)
1. the two-action multi-stage cylinder that a kind of interlayer makees oil supply gallery, it is characterised in that: by piston, bar outer layer, bar internal layer and lead
It is welded to set is integrated, wherein piston is arranged on the outside of cylinder barrel, and by chopped-off head piston rod assembly, second piston bar assembly and three
Grade piston rod assembly composition, wherein second piston bar assembly and three-level piston rod assembly are divided into bar internal layer and bar outer layer, outside bar
Outer layer aperture is provided on layer, bar internal layer is equipped with internal layer aperture, and logical oily straight trough, San Zhexiang are equipped between bar outer layer and bar internal layer
In entrance cylinder barrel of the perforation to realize oil liquid.
2. making the two-action multi-stage cylinder of oil supply gallery with interlayer as described in claim 1, it is characterised in that: set on the piston
There is rod chamber hydraulic fluid port for flowing into oil liquid.
3. making the two-action multi-stage cylinder of oil supply gallery with interlayer as described in claim 1, it is characterised in that: the piston end surface is set
There is cross recess that piston rod can be prevented to be closed oil liquid when running to stroke terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821208530.5U CN208764019U (en) | 2018-07-28 | 2018-07-28 | A kind of interlayer makees the two-action multi-stage cylinder of oil supply gallery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821208530.5U CN208764019U (en) | 2018-07-28 | 2018-07-28 | A kind of interlayer makees the two-action multi-stage cylinder of oil supply gallery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208764019U true CN208764019U (en) | 2019-04-19 |
Family
ID=66129974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821208530.5U Active CN208764019U (en) | 2018-07-28 | 2018-07-28 | A kind of interlayer makees the two-action multi-stage cylinder of oil supply gallery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208764019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606220A (en) * | 2021-06-07 | 2021-11-05 | 中国北方车辆研究所 | Multi-stage oil cylinder with forward and backward oil filling ports fixed on outer cylinder |
-
2018
- 2018-07-28 CN CN201821208530.5U patent/CN208764019U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606220A (en) * | 2021-06-07 | 2021-11-05 | 中国北方车辆研究所 | Multi-stage oil cylinder with forward and backward oil filling ports fixed on outer cylinder |
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