CN102322459A - Double-speed hydraulic cylinder - Google Patents
Double-speed hydraulic cylinder Download PDFInfo
- Publication number
- CN102322459A CN102322459A CN201110257683A CN201110257683A CN102322459A CN 102322459 A CN102322459 A CN 102322459A CN 201110257683 A CN201110257683 A CN 201110257683A CN 201110257683 A CN201110257683 A CN 201110257683A CN 102322459 A CN102322459 A CN 102322459A
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- hydraulic cylinder
- piston rod
- auxiliary
- main
- main piston
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Abstract
The invention discloses a double-speed hydraulic cylinder. A main piston is fixedly connected with a main piston rod, the main piston and the main piston rod are installed in a main hydraulic cylinder, an end cover is fixedly installed at the opening of the main hydraulic cylinder, an auxiliary hydraulic cylinder is arranged in the middle of the main piston rod, an auxiliary piston rod is fixedly installed in the auxiliary hydraulic cylinder after passing through the bottom of the hydraulic cylinder, a through hole is arranged in the middle of an auxiliary piston rod, the outer end of the auxiliary piston rod and a flange are fixedly installed together, and the flange is fixedly connected with the bottom of the hydraulic cylinder through a fastening bolt. Hydraulic oil flows through the middle through hole of the auxiliary piston rod, and the effective sectional area of the auxiliary hydraulic cylinder is smaller, therefore, the main piston rod can be pushed to feed quickly. Pressure oil is introduced from a piston cylinder of the main hydraulic cylinder when the double-speed hydraulic cylinder works. Because the effective work sectional area of the main hydraulic cylinder is bigger, the work with higher pressure can be realized.
Description
Technical field
The present invention relates to a kind of hydraulic element technology, specifically is a kind of dual-speed hydraulic cylinder with fast jogging speed.
Background technique
Oil hydraulic cylinder is work, the executive component in the hydraulic system, in hydraulic system, in order to increase work efficiency, needs the piston rod of oil hydraulic cylinder near workpiece the time, to have higher movement velocity; Need oil hydraulic cylinder to have higher pressure and when work, have.At present, realizing the fast feed of oil hydraulic cylinder and the work of big pressure, all is that the hydraulic system by peripheral hardware realizes, so have complex structure, the higher scarce limit of rate of fault cost higher, equipment; Simultaneously, owing to need the complicated hydraulic system of a cover,, be unfavorable for that equipment installs and uses in less space so whole device systems is also comparatively huge.
Summary of the invention
The objective of the invention is to: the dual-speed hydraulic cylinder that provides a kind of finger to have fast jogging speed; Overcome existing oil hydraulic cylinder the time fast with two kinds of working staties at a slow speed; Need complicated peripheral hardware hydraulic system, and the hydraulic system structure that causes therefrom is complicated, rate of fault cost higher, equipment is higher, be unfavorable for the scarce limit that equipment is installed and used in less space.
The present invention realizes that the technological scheme that above-mentioned purpose adopts is: this a kind of dual-speed hydraulic cylinder comprises bolt, flange, auxiliary piston rod, through hole, master hydraulic cylinder, main piston, main piston rod, auxiliary hydraulic cylinder, end cap; Said main piston and main piston rod are fixedly connected; And main piston and main piston rod are installed in the master hydraulic cylinder, and the oral area of master hydraulic cylinder is installed with end cap; The centre of main piston rod is shaped on auxiliary hydraulic cylinder; Auxiliary piston rod passes from the bottom of oil hydraulic cylinder, installs in the auxiliary hydraulic cylinder internal fixation, is provided with through hole in the middle of the auxiliary piston rod; Auxiliary piston rod outer end and flange are fixedly installed togather, and flange is fixedly connected with the bottom of oil hydraulic cylinder through fixing bolt.Through logical hydraulic oil from the intermediate throughholes of auxiliary piston rod; Because the net sectional area of auxiliary hydraulic cylinder is less, so, just can promote main piston rod fast feed; When work, then in the piston cylinder of master hydraulic cylinder, feed pressure oil; Because effective working sections of master hydraulic cylinder is long-pending bigger, so, can realize big pressure work.
Beneficial effect of the present invention: the present invention can overcome existing oil hydraulic cylinder fast with two kinds of working staties at a slow speed the time; Need complicated peripheral hardware hydraulic system, and the hydraulic system structure that causes therefrom is complicated, rate of fault cost higher, equipment is higher, be unfavorable for the scarce limit that equipment is installed and used in less space.
Description of drawings
Accompanying drawing 1 is a structure principle chart of the present invention.
Shown in the figure: 1. bolt, 2. flange, 3. auxiliary piston rod, 4. through hole, 5. master hydraulic cylinder, 6. main piston, 7. main piston rod, 8. auxiliary hydraulic cylinder, 9. end cap.
Embodiment
In the drawings; This a kind of dual-speed hydraulic cylinder comprises bolt 1, flange 2, auxiliary piston rod 3, through hole 4, master hydraulic cylinder 5, main piston 6, main piston rod 7, auxiliary hydraulic cylinder 8, end cap 9, and said main piston 6 is fixedly connected with main piston rod 7, and main piston 6 is installed in the master hydraulic cylinder 5 with main piston rod 7; The oral area of master hydraulic cylinder 5; Be installed with end cap 9, the centre of main piston rod 7 is shaped on auxiliary hydraulic cylinder 8, and auxiliary piston rod 3 passes from the bottom of oil hydraulic cylinder 5; Install in auxiliary hydraulic cylinder 8 internal fixation; Be provided with through hole 4 in the middle of the auxiliary piston rod 3, auxiliary piston rod 3 outer ends and flange 2 are fixedly installed togather, and flange 2 is fixedly connected with the bottom of oil hydraulic cylinder 5 through fixing bolt 1.Through logical hydraulic oil from the intermediate throughholes 4 of auxiliary piston rod 3; Because the net sectional area of auxiliary hydraulic cylinder 8 is less, so, main piston rod 7 fast feeds just can be promoted; When work, then in the piston cylinder of master hydraulic cylinder 5, feed pressure oil; Because effective working sections of master hydraulic cylinder 5 is long-pending bigger, so, can realize big pressure work.
Claims (1)
1. dual-speed hydraulic cylinder; This a kind of dual-speed hydraulic cylinder comprises bolt (1), flange (2), auxiliary piston rod (3), through hole (4), master hydraulic cylinder (5), main piston (6), main piston rod (7), auxiliary hydraulic cylinder (8), end cap (9); It is characterized in that: said main piston (6) is fixedly connected with main piston rod (7); And main piston (6) is installed in the master hydraulic cylinder (5) with main piston rod (7), and the oral area of master hydraulic cylinder (5) is installed with end cap (9); The centre of main piston rod (7) is shaped on auxiliary hydraulic cylinder (8); Auxiliary piston rod (3) passes from the bottom of oil hydraulic cylinder (5), installs in auxiliary hydraulic cylinder (8) internal fixation, is provided with through hole (4) in the middle of the auxiliary piston rod (3); Auxiliary piston rod (3) outer end and flange (2) are fixedly installed togather, and flange (2) is fixedly connected with the bottom of oil hydraulic cylinder (5) through fixing bolt (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110257683A CN102322459A (en) | 2011-09-02 | 2011-09-02 | Double-speed hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110257683A CN102322459A (en) | 2011-09-02 | 2011-09-02 | Double-speed hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102322459A true CN102322459A (en) | 2012-01-18 |
Family
ID=45450264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110257683A Pending CN102322459A (en) | 2011-09-02 | 2011-09-02 | Double-speed hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102322459A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748341A (en) * | 2012-06-19 | 2012-10-24 | 江苏金三力机械制造有限公司 | Quick cylinder hydraulic system |
| CN103867525A (en) * | 2014-04-08 | 2014-06-18 | 武汉科技大学 | Variable speed double-piston series-connection hydraulic cylinder |
| CN104339419A (en) * | 2013-08-02 | 2015-02-11 | 阿托姆公开有限公司 | Die-cutting machine with driving assemblies |
| CN105782160A (en) * | 2016-05-11 | 2016-07-20 | 中国工程物理研究院总体工程研究所 | Single-rod inlet and outlet bi-direction equal-load hydraulic cylinder |
-
2011
- 2011-09-02 CN CN201110257683A patent/CN102322459A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748341A (en) * | 2012-06-19 | 2012-10-24 | 江苏金三力机械制造有限公司 | Quick cylinder hydraulic system |
| CN104339419A (en) * | 2013-08-02 | 2015-02-11 | 阿托姆公开有限公司 | Die-cutting machine with driving assemblies |
| CN103867525A (en) * | 2014-04-08 | 2014-06-18 | 武汉科技大学 | Variable speed double-piston series-connection hydraulic cylinder |
| CN105782160A (en) * | 2016-05-11 | 2016-07-20 | 中国工程物理研究院总体工程研究所 | Single-rod inlet and outlet bi-direction equal-load hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120118 |