CN202971398U - Double-acting type hydraulic cylinder - Google Patents
Double-acting type hydraulic cylinder Download PDFInfo
- Publication number
- CN202971398U CN202971398U CN 201220608235 CN201220608235U CN202971398U CN 202971398 U CN202971398 U CN 202971398U CN 201220608235 CN201220608235 CN 201220608235 CN 201220608235 U CN201220608235 U CN 201220608235U CN 202971398 U CN202971398 U CN 202971398U
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- cylinder
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Abstract
The utility model relates to a double-acting type hydraulic cylinder, which is characterized in that a sub piston is arranged in a cylinder body, a sub piston rod is fixedly arranged in a center position of the sub piston, the end opening part of the cylinder body is fixedly provided with a cylinder cover, a main piston is arranged between the sub piston and the bottom of the cylinder body, a main piston rod passes through the sub piston rod and a center hole of the sub piston to be fixedly connected with the center of the main piston, the bottom of the cylinder body is provided with a main oil inlet and return opening, a sub oil inlet and return opening is arranged in a position of the cylinder body near the end opening, and the waist part of the cylinder body is provided with a gear shifting oil inlet and return opening. The double-acting type hydraulic cylinder has the function of sequentially executing two work tasks, the system complexity can be reduced, and the structural space can be more compact.
Description
Technical field
The utility model relates to oil hydraulic cylinder, is specifically related to a kind of double action oil hydraulic cylinder, belongs to the oil hydraulic cylinder technical field.
Background technique
Oil hydraulic cylinder is a kind of hydraulic actuator, existing oil hydraulic cylinder generally comprises a hydraulic cylinder, and be arranged on piston in cylinder body, be connected and fixed piston rod on described piston, hydraulic oil moves left and right by pushing piston, make synchronous the moving left and right of piston rod, thereby reach the purpose of work, so, existing oil hydraulic cylinder is a kind of oil hydraulic cylinder of single-acting type, if order is completed multinomial work, the oil hydraulic cylinder of respective numbers must be set, this can bring complexity and the comparatively huge defective of structure space of system.
Summary of the invention
The purpose of this utility model is: for the existing defects of existing oil hydraulic cylinder, the utility model provides a kind of novel double action oil hydraulic cylinder, and this kind oil hydraulic cylinder has the function that order is carried out two kinds of tasks.
the technological method that the above-mentioned purpose that realizes the utility model adopts is: described a kind of double action oil hydraulic cylinder, it is by main piston rod, the sub-piston bar, cylinder cap, cylinder body, sub-piston, main piston forms, it is characterized in that: be provided with sub-piston in cylinder body, the center portion of sub-piston arranges and is mounted with the sub-piston bar, port position setting at cylinder body is mounted with cylinder cap, be provided with main piston between sub-piston and cylinder base, main piston rod passes the center hole of sub-piston bar and sub-piston and the center of main piston is connected and fixed, be provided with main oil inlet and oil return mouth in the bottom of cylinder body, close port position at cylinder body is provided with secondary oil inlet and oil return mouth, be provided with gearshift oil inlet and oil return mouth at the waist position of cylinder body.
working procedure of the present utility model is: when starting working, hydraulic oil enters from main oil inlet and oil return mouth, at this moment, because main piston and sub-piston are superimposed, so, main piston moves together with sub-piston, and driving main piston rod moves together with the sub-piston bar, when moving to gear oil inlet and oil return port part together with sub-piston when main piston, at this moment, under the control of control system, main oil inlet and oil return mouth cut-off, gearshift oil inlet and oil return mouth begins to pass into pressure oil, at this moment, main piston and main piston rod stop motion, sub-piston and sub-piston bar independently moving, backhaul can be completed by the opposition that external force is applied on main piston rod and sub-piston bar, also can pass through control system, pass into pressure oil from secondary oil inlet and oil return mouth, and gearshift oil inlet and oil return mouth is realized from the different circuits of main oil inlet and oil return mouth.
Beneficial effect: can be found out by structure principle chart of the present utility model and working principle, the utlity model has the function that order is carried out two kinds of tasks, can reduce the complexity of system, make structure space more compact.
Description of drawings
Accompanying drawing 1 is structural principle plan view of the present utility model.
Accompanying drawing 2 is that the utility model begins the drive range working drawing.
Accompanying drawing 3 is a kind of working position figure after the utility model gearshift.
Shown in figure: 1, main piston rod; 2, sub-piston bar; 3, cylinder cap; 4, cylinder body; 5, sub-piston; 6, main piston; 7, main oil inlet and oil return mouth; 8, gearshift oil inlet and oil return mouth; 9, secondary oil inlet and oil return mouth.
Embodiment
a kind of double action oil hydraulic cylinder, comprise main piston rod (1), sub-piston bar (2), cylinder cap (3), cylinder body (4), sub-piston (5), main piston forms, it is characterized in that: be provided with sub-piston (5) in cylinder body (4), the center portion of sub-piston (5) arranges and is mounted with sub-piston bar (2), port position setting at cylinder body (4) is mounted with cylinder cap (3), be provided with main piston (6) between bottom sub-piston (5) and cylinder body (4), main piston rod (1) passes the center hole of sub-piston bar (2) and sub-piston (5) and the center of main piston (6) is connected and fixed, be provided with main oil inlet and oil return mouth (7) in the bottom of cylinder body (4), close port position at cylinder body (4) is provided with secondary oil inlet and oil return mouth (9), be provided with gearshift oil inlet and oil return mouth (8) at the waist position of cylinder body (4).
Claims (1)
1. double action oil hydraulic cylinder, it is characterized in that: comprise main piston rod (1), sub-piston bar (2), cylinder cap (3), cylinder body (4), sub-piston (5), main piston forms, be provided with sub-piston (5) in cylinder body (4), the center portion of sub-piston (5) arranges and is mounted with sub-piston bar (2), port position setting at cylinder body (4) is mounted with cylinder cap (3), be provided with main piston (6) between bottom sub-piston (5) and cylinder body (4), main piston rod (1) passes the center hole of sub-piston bar (2) and sub-piston (5) and the center of main piston (6) is connected and fixed, be provided with main oil inlet and oil return mouth (7) in the bottom of cylinder body (4), close port position at cylinder body (4) is provided with secondary oil inlet and oil return mouth (9), be provided with gearshift oil inlet and oil return mouth (8) at the waist position of cylinder body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220608235 CN202971398U (en) | 2012-11-18 | 2012-11-18 | Double-acting type hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220608235 CN202971398U (en) | 2012-11-18 | 2012-11-18 | Double-acting type hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971398U true CN202971398U (en) | 2013-06-05 |
Family
ID=48512482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220608235 Expired - Fee Related CN202971398U (en) | 2012-11-18 | 2012-11-18 | Double-acting type hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943783A (en) * | 2012-11-18 | 2013-02-27 | 苏州蓝王机床工具科技有限公司 | Double-acting hydraulic cylinder |
-
2012
- 2012-11-18 CN CN 201220608235 patent/CN202971398U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943783A (en) * | 2012-11-18 | 2013-02-27 | 苏州蓝王机床工具科技有限公司 | Double-acting hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20141118 |
|
| EXPY | Termination of patent right or utility model |