CN201588839U - Hydraulic cylinder capable of automatically increasing pressure force - Google Patents
Hydraulic cylinder capable of automatically increasing pressure force Download PDFInfo
- Publication number
- CN201588839U CN201588839U CN 200920251667 CN200920251667U CN201588839U CN 201588839 U CN201588839 U CN 201588839U CN 200920251667 CN200920251667 CN 200920251667 CN 200920251667 U CN200920251667 U CN 200920251667U CN 201588839 U CN201588839 U CN 201588839U
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- Prior art keywords
- cylinder
- piston
- chamber
- cylinder barrel
- oil
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- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic cylinder capable of automatically increasing the pressure force, which comprises a cylinder barrel, wherein an oil inlet nozzle is formed at the lower part of the cylinder barrel, a return oil inlet nozzle is formed at a cylinder cover on the top, the cylinder cover is fixed on the cylinder barrel, chambers are formed in the cylinder barrel, and pistons are arranged in the chambers; and the hydraulic cylinder is characterized in that the cylinder barrel is divided into two independent chambers by inner covers, the inner covers among layers are pressed and fixed by inner sleeves embedded in the chamber at the upper part, the piston is installed in each chamber, a small head of the piston at the lower part passes through the inner covers and is directly propped against the inner part of an oil chamber of the piston at the upper part, the piston at the upper part is positioned at the opening end of the cylinder barrel, one end of a small head of the piston at the upper part passes through the center of the cylinder cover and is led to the outer part, the oil chamber is formed inside the piston at the upper part and communicated with an oil inlet chamber at the upper end, a pressure cover is fixed at the upper end of the oil inlet chamber, air chambers are formed between the piston at the upper part and the inner cover in the middle, and each air chamber is communicated with the outer air through air valves arranged on the wall of the cylinder barrel. The hydraulic cylinder can utilize smaller liquid pressure to provide larger output pressure by automatically increasing the pressure of hydraulic oil, thereby saving the production cost.
Description
Technical field
The utility model relates to hydraulic pressure installation, relates in particular to a kind of being applicable under smaller liquid pressure, provide relatively large hydraulic pressure from the powerful oil hydraulic cylinder of supercharging.Belong to the hydraulic machinery manufacturing field of equipment.
Background technique
Existing oil hydraulic cylinder comprises: cylinder barrel, and the cylinder barrel bottom is provided with oil intake nozzle, and the place is provided with the backhaul filler opening at the top cylinder cap, is fixed with cylinder cap on the cylinder barrel, is provided with a chamber in the cylinder barrel, and a piston is installed in the chamber.
At present, existing oil hydraulic cylinder generally is to rely on hydraulic station to provide in the rodless cavity that hydraulic oil is carried in oil hydraulic cylinder, and the piston flat bottoms is produced pressure, promotes the oil hydraulic cylinder motion, and pressure externally is provided.Under the situation of constancy of volume, in order to increase pressure, the method for the fuel feeding pressure of employing increase hydraulic station reaches the purpose of boost pressure usually, perhaps by the secondary booster device, increase the oil pressure that enters oil hydraulic cylinder to improve system pressure, improve the delivery pressure of oil hydraulic cylinder.But, no matter be that hydraulic station provides superelevation pressure or adopts the secondary booster technology to come supercharging, for hydraulic station, hydraulic pipe line, hydraulic control system all can have high requirement, and its cost can also can be multiplied; Simultaneously, also increased the danger of using in the operating process.Therefore, the manufacture difficulty of Superhigh Pressure Hydraulic System is very big.
The model utility content
Main purpose of the present utility model is to overcome the above-mentioned shortcoming that existing oil hydraulic cylinder exists, and providing a kind of from the powerful oil hydraulic cylinder of supercharging, it can use less liquid pressure, by the pressure of automatic increase hydraulic oil, bigger delivery pressure is provided, has saved cost of production.
The purpose of this utility model is realized by following technological scheme:
A kind of from the powerful oil hydraulic cylinder of supercharging, comprising: cylinder barrel, the cylinder barrel bottom is provided with oil intake nozzle, and the place is provided with the backhaul filler opening at the top cylinder cap, is fixed with cylinder cap on the cylinder barrel, is provided with chamber in the cylinder barrel, and a piston is installed in the chamber; It is characterized in that: this cylinder barrel is separated into two independent cavity by inner cap, and the interlayer inner cap presses solidly by being positioned at the cover that upper chamber inlays; One piston is installed in each chamber, and lower piston microcephaly passes the oil pocket inside that inner cap directes reach upper piston, upper piston is positioned at the opening end of cylinder barrel, upper piston microcephaly's one end passes the cylinder cap center and leads to the outside, and upper piston inside is provided with an oil pocket, this oil pocket is communicated with the upper end oil suction chamber, and the oil suction chamber upper end is fixed with gland; Form air cavity between lower piston and the middle part inner cap, each gas chamber communicates with ambient atmosphere by the air valve that is located on the cylinder barrel wall.
Piston seal and piston seal back-up ring are installed in the described lower piston mating groove.
Inner cap sealing and inner cap Sealing shield ring are installed in the peripheral groove of described inner cap.
Sealing and Sealing shield ring are installed in the outer groove of described upper piston.
The little sealing of cylinder cap is installed in the inner groove of described cylinder cap; The cylinder cap sealing is installed in the big annular groove of cylinder cap.
Pressed solidly gland seal on the described gland.
The beneficial effects of the utility model: the utility model is owing to adopt technique scheme, and it can less liquid pressure, increases the pressure of hydraulic oil, thereby bigger delivery pressure is provided; Simultaneously, the utility model is easy to manufacture, and volume is little, has saved cost of production.
Description of drawings:
Fig. 1 is the utility model structure master cross-sectional schematic.
Major label description in figure:
1 bolt, 2 packing rings, 3 cylinder caps, the sealing of 4 cylinder caps, cover in 5,6 cylinder barrels, 7 Sealing shield rings, the sealing of 8 big pistons, 9 interior cover sealings, the sealing of 10 inner caps, 11 inner cap Sealing shield rings, 12 inner caps, the little sealing of 13 inner caps, the little Sealing shield ring of 14 inner caps, 15 charged pistons, 16 oil pockets, the sealing of 17 charged pistons, 18 charged piston Sealing shield rings, 19 oil intake nozzles, 20 air cavitys, 21 air valves, 22 oil pockets, 23 oil pockets, 24 big pistons, 25 backhaul filler openings, 26 glands, 27 gland bolts, 28 gland seals, 29 gland seals, 30 oil suction chambers, the little sealing of 31 cylinder caps.
Embodiment
Consult shown in Figure 1, the utility model comprises: cylinder barrel 6, the bottom of cylinder barrel 6 is provided with oil intake nozzle 19,3 places are provided with backhaul filler opening 25 at the top cylinder cap, adopt bolt 1, packing ring 2 Placements to be fixed with cylinder cap 3 on the cylinder barrel 6, be separated into plural independent cavity up and down by inner cap 12 in the cylinder barrel 6, indoor big piston 24 and the charged piston 15 of being separately installed with of upper and lower cavity, charged piston 15 stub ends are placed in the lower chamber of cylinder barrel 6, and the endoporus that little head end passes inner cap 12 directes reach the oil pocket inside of top big piston 24; Top big piston 24 is positioned at cylinder barrel 6 opening ends, and top big piston 24 microcephalies one end passes cylinder cap 3 centers and leads to the outside; Upper piston 24 inside are provided with an oil pocket 22, and this oil pocket 22 is communicated with upper end oil suction chamber 30, and oil suction chamber 30 upper ends are fixed with gland seal 29,28,27; Form air cavity between bottom charged piston 15 and the middle part inner cap 12, each gas chamber communicates with ambient atmosphere by the air valve 21 that is located on the cylinder barrel wall.
Charged piston sealing 17 and charged piston Sealing shield ring 18 are installed in two mating grooves on the charged piston 15; The peripheral groove of inner cap 12 is loaded in the big chamber of cylinder barrel 6 after inner cap sealing 10, inner cap Sealing shield ring 11 are installed; The interior cover 5 that is embedded in upper chamber is pressed on the upper surface of interlayer inner cap 12 by interior cover sealing 9; Big piston sealing 8, Sealing shield ring 7 are installed in big piston 24 outer grooves, and big piston 24 is installed in the inner chamber of interior cover 5; Cylinder cap sealing 4 is installed in the big annular groove of cylinder cap 3, and the little sealing 31 of cylinder cap is installed in cylinder cap 3 inner grooves; Cylinder cap 3 is installed on the cylinder barrel 6 by bolt 1, packing ring 2.
During work, hydraulic oil is entered in the oil pocket 16 by oil intake nozzle 19, and charged piston 15 motions make hydraulic oil supercharging in the oil pocket 22, and the hydraulic oil after the supercharging promotes big piston 24 motions; Air in the air cavity 20 links to each other with the external world by air valve 21; During backhaul, hydraulic oil enters in the oil pocket 23 by backhaul hydraulic fluid port 25, and big piston 24 is pushed back original position, and charged piston 12 also is pushed back original position.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (6)
1. one kind from the powerful oil hydraulic cylinder of supercharging, comprising: cylinder barrel, and the cylinder barrel bottom is provided with oil intake nozzle, and the place is provided with the backhaul filler opening at the top cylinder cap, is fixed with cylinder cap on the cylinder barrel, is provided with chamber in the cylinder barrel, and a piston is installed in the chamber; It is characterized in that: this cylinder barrel is separated into two independent cavity by inner cap, and the interlayer inner cap presses solidly by being positioned at the cover that upper chamber inlays; One piston is installed in each chamber, and lower piston microcephaly passes the oil pocket inside that inner cap directes reach upper piston, upper piston is positioned at the opening end of cylinder barrel, upper piston microcephaly's one end passes the cylinder cap center and leads to the outside, and upper piston inside is provided with an oil pocket, this oil pocket is communicated with the upper end oil suction chamber, and the oil suction chamber upper end is fixed with gland; Form air cavity between lower piston and the middle part inner cap, each gas chamber communicates with ambient atmosphere by the air valve that is located on the cylinder barrel wall.
2. according to claim 1 from the powerful oil hydraulic cylinder of supercharging, it is characterized in that: piston seal and piston seal back-up ring are installed in the described lower piston mating groove.
3. according to claim 1 from the powerful oil hydraulic cylinder of supercharging, it is characterized in that: inner cap sealing and inner cap Sealing shield ring are installed in the peripheral groove of described inner cap.
4. according to claim 1 from the powerful oil hydraulic cylinder of supercharging, it is characterized in that: sealing and Sealing shield ring are installed in the outer groove of described upper piston.
5. according to claim 1 from the powerful oil hydraulic cylinder of supercharging, it is characterized in that: the little sealing of cylinder cap is installed in the inner groove of described cylinder cap; The cylinder cap sealing is installed in the big annular groove of cylinder cap.
6. according to claim 1 from the powerful oil hydraulic cylinder of supercharging, it is characterized in that: pressed solidly gland seal on the described gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920251667 CN201588839U (en) | 2009-12-14 | 2009-12-14 | Hydraulic cylinder capable of automatically increasing pressure force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920251667 CN201588839U (en) | 2009-12-14 | 2009-12-14 | Hydraulic cylinder capable of automatically increasing pressure force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588839U true CN201588839U (en) | 2010-09-22 |
Family
ID=42748618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920251667 Expired - Fee Related CN201588839U (en) | 2009-12-14 | 2009-12-14 | Hydraulic cylinder capable of automatically increasing pressure force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588839U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867525A (en) * | 2014-04-08 | 2014-06-18 | 武汉科技大学 | Variable speed double-piston series-connection hydraulic cylinder |
| CN107355447A (en) * | 2017-09-04 | 2017-11-17 | 朱勉学 | A kind of pressurizing cylinder and superelevation presser blade hydraulic press |
-
2009
- 2009-12-14 CN CN 200920251667 patent/CN201588839U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867525A (en) * | 2014-04-08 | 2014-06-18 | 武汉科技大学 | Variable speed double-piston series-connection hydraulic cylinder |
| CN107355447A (en) * | 2017-09-04 | 2017-11-17 | 朱勉学 | A kind of pressurizing cylinder and superelevation presser blade hydraulic press |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20131214 |