CN2591306Y - Hydraulic synchronous oil cylinder with automatic feeding (discharging) liquid zero resetting apparatus - Google Patents
Hydraulic synchronous oil cylinder with automatic feeding (discharging) liquid zero resetting apparatus Download PDFInfo
- Publication number
- CN2591306Y CN2591306Y CN 02261187 CN02261187U CN2591306Y CN 2591306 Y CN2591306 Y CN 2591306Y CN 02261187 CN02261187 CN 02261187 CN 02261187 U CN02261187 U CN 02261187U CN 2591306 Y CN2591306 Y CN 2591306Y
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- oil cylinder
- way valve
- valve body
- utility
- piston
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Abstract
The utility model relates to a tandem type (isometric type) hydraulic synchronous oil cylinder class, particularly a hydraulic synchronous oil cylinder with automatic feeding (discharging) liquid zero resetting device. The utility model mainly comprises a cylinder body, a piston and a piston rod. The utility model is characterized in that the utility model also comprises a one-way valve, a one-way valve body and a push rod, wherein, the one-way valve body and the piston rod are fixedly connected. The one-way valve is arranged in the piston rod, and the pore diameter of the one-way valve body is larger than the diameter of the push rod. A gap is formed between the one-way valve body and the push rod. The utility model has the advantages of simple structure and convenient operation, and fundamentally eliminates synchronous errors.
Description
Technical field
The utility model relates to tandem (isometric(al) type) Hydraulic Synchronizing oil cylinder class, and particularly a kind of band is mended the Hydraulic Synchronizing oil cylinder of (row) liquid zero resetting device automatically.
Background technique
Hydraulic pressure series connection synchronizing circuit is to realize synchronous shift according to the isometric(al) principle by two oil hydraulic cylinders, and is succinct because of its oil hydraulic circuit, synchronization accuracy is high, can adapt to than advantages such as unbalance loadings greatly and obtain extensive use.But because the error between inevitably micro-interior seepage and actual accuracy of manufacturing and isometric(al) theoretical calculation size, what make two oil cylinders back and forth all has a small synchronization discrepancy each time, and the actual synchronization difference that the accumulation of this synchronization discrepancy causes all is unacceptable in various occasions.For this reason, must be in the synchronous oil circuit of this in the past series connection to taking repairing and oil extraction measure between two cylinders, this has just caused the increase and the operational trouble of the complicated and hydraulic element of originally very succinct loop change.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, a kind of interior automatic benefit (row) liquid device of ensconcing on the oil cylinder piston is provided, this device can realize that the synchronous fuel tank of two series connection can both be by automatic fluid infusion discharge opeing return-to-zero in the terminal of each run, thereby eliminate the synchronization error that current stroke may occur because of interior seepage or accuracy of manufacturing, fundamentally eliminate the generation of accumulated error, guaranteed synchronization accuracy.
The utility model purpose realizes being finished by following technological scheme:
The utility model mainly comprises cylinder body, piston, piston rod, it is characterized in that also comprising one-way valve, check valve body, push rod, wherein check valve body is fixedlyed connected with piston rod, and one-way valve places piston rod, the aperture of check valve body is left the space between the two greater than the push rod diameter.
The utility model has the advantages that, simple in structure, easy to operate, fundamentally eliminated synchronization error.
Summary of drawings
Accompanying drawing 1 is the utility model master cylinder sectional view;
Accompanying drawing 2 is the utility model auxiliary oil cylinder sectional view;
Concrete technological scheme
The utility model feature and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
Shown in Fig. 1-2, always representing respectively with reference to label 1-10 in the accompanying drawing: the one-way valve that oil cylinder piston (1), check valve spring (2), steel ball (3), push rod (4), check valve body (5) oil cylinder top are advanced on (row) hydraulic fluid port (6), the piston rod advances (row) hydraulic fluid port (8), cylinder body (9), piston rod (10), label (A) is that master cylinder epicoele, (B) are the master cylinder cavity of resorption, and label (C) is that auxiliary oil cylinder epicoele, (D) are the auxiliary oil cylinder cavity of resorption.
A kind of band is mended the Hydraulic Synchronizing oil cylinder of (row) liquid zero resetting device automatically, mainly comprise cylinder body (9), piston (1), piston rod (10), check valve body (5), push rod (4) and the one-way valve that constitutes by check valve spring (2), steel ball (3), wherein check valve body (5) is threaded with piston rod (10), the one-way valve that check valve spring (2), steel ball (3) constitute places piston rod, the aperture of check valve body (5) is left the space between the two greater than the diameter of push rod (4).
Above-mentioned one-way valve also can be made of cone body or similar structure body and spring part.
As shown in the figure, the view of accompanying drawing 1 master cylinder is before piston (1) does not outreach, the state during closed check valve on the piston, and the view of accompanying drawing 2 auxiliary oil cylinders is after piston (1) outreaches, the state of the one-way valve opens on the piston.
When the series connection synchronous fuel tank is moved first, the utility model can be realized the automatic liquid feeding of (master cylinder epicoele A and auxiliary oil cylinder cavity of resorption D) between two cylinders automatically, its process is: master cylinder cavity of resorption (B) advances pressure oil from oil hydraulic circuit, and main oil cylinder piston rises, and this moment, the auxiliary oil cylinder piston was motionless.When main oil cylinder piston moves to the oil cylinder top, push rod (4) promotes steel ball (3) and spring (2), promptly open one-way valve, make the pressure oil of master cylinder cavity of resorption (B) enter epicoele (A), and enter auxiliary oil cylinder cavity of resorption (D) by connecting oil pipe, promote the auxiliary oil cylinder piston stroking upward, reach the top up to the auxiliary oil cylinder piston, the liquid feeding process finishes automatically.
Automatically it is as follows to mend (row) liquid return-to-zero process: if main oil cylinder piston reaches the top earlier, the working procedure of return-to-zero is as above-mentioned liquid feeding process.If the auxiliary oil cylinder piston reaches the top earlier, then the one-way valve of auxiliary oil cylinder piston tip is opened discharge opeing automatically, makes master cylinder can continue to rise up to the top.
Claims (4)
1, a kind of band is mended the Hydraulic Synchronizing oil cylinder of (row) liquid zero resetting device automatically, mainly comprise cylinder body, piston, piston rod, it is characterized in that also comprising one-way valve, check valve body, push rod, wherein check valve body is fixedlyed connected with piston rod, one-way valve places piston rod, the aperture of check valve body is left the space between the two greater than the push rod diameter.
2, a kind of band according to claim 1 is mended the Hydraulic Synchronizing oil cylinder of (row) liquid zero resetting device automatically, it is characterized in that described one-way valve is made of steel ball and spring.
3, a kind of band according to claim 1 is mended the Hydraulic Synchronizing oil cylinder of (row) liquid zero resetting device automatically, it is characterized in that described one-way valve is made of cone body and spring.
4, a kind of band according to claim 1 is mended the Hydraulic Synchronizing oil cylinder of (row) liquid zero resetting device automatically, and what it is characterized in that described check valve body fixedlys connected employing with piston rod is to be threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02261187 CN2591306Y (en) | 2002-11-01 | 2002-11-01 | Hydraulic synchronous oil cylinder with automatic feeding (discharging) liquid zero resetting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02261187 CN2591306Y (en) | 2002-11-01 | 2002-11-01 | Hydraulic synchronous oil cylinder with automatic feeding (discharging) liquid zero resetting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2591306Y true CN2591306Y (en) | 2003-12-10 |
Family
ID=33728047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02261187 Expired - Fee Related CN2591306Y (en) | 2002-11-01 | 2002-11-01 | Hydraulic synchronous oil cylinder with automatic feeding (discharging) liquid zero resetting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2591306Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893015A (en) * | 2010-07-22 | 2010-11-24 | 烟台未来自动装备有限责任公司 | Hydraulic cylinder with hydraulic on and off function for dump sanitation truck |
| CN102734258A (en) * | 2011-03-31 | 2012-10-17 | 梅西耶-布加蒂-道提公司 | Hydraulic actuator with automatic drain at end of travel |
| CN105840568A (en) * | 2016-06-08 | 2016-08-10 | 山推工程机械股份有限公司 | Method for reducing internal stress of extreme position of mechanism |
| CN112392801A (en) * | 2019-08-02 | 2021-02-23 | 上海梅山钢铁股份有限公司 | Device for preventing oil from being bundled by hydraulic system |
-
2002
- 2002-11-01 CN CN 02261187 patent/CN2591306Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893015A (en) * | 2010-07-22 | 2010-11-24 | 烟台未来自动装备有限责任公司 | Hydraulic cylinder with hydraulic on and off function for dump sanitation truck |
| CN102734258A (en) * | 2011-03-31 | 2012-10-17 | 梅西耶-布加蒂-道提公司 | Hydraulic actuator with automatic drain at end of travel |
| CN102734258B (en) * | 2011-03-31 | 2015-12-09 | 梅西耶-布加蒂-道提公司 | End of travel is with the hydraulic actuator of automatic-discharging |
| CN105840568A (en) * | 2016-06-08 | 2016-08-10 | 山推工程机械股份有限公司 | Method for reducing internal stress of extreme position of mechanism |
| CN105840568B (en) * | 2016-06-08 | 2018-04-13 | 山推工程机械股份有限公司 | A kind of reducing mechanism extreme position internal stress method |
| CN112392801A (en) * | 2019-08-02 | 2021-02-23 | 上海梅山钢铁股份有限公司 | Device for preventing oil from being bundled by hydraulic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |