CN87213346U - One-way synchronism expansible sleeve ram - Google Patents
One-way synchronism expansible sleeve ram Download PDFInfo
- Publication number
- CN87213346U CN87213346U CN 87213346 CN87213346U CN87213346U CN 87213346 U CN87213346 U CN 87213346U CN 87213346 CN87213346 CN 87213346 CN 87213346 U CN87213346 U CN 87213346U CN 87213346 U CN87213346 U CN 87213346U
- Authority
- CN
- China
- Prior art keywords
- plunger
- oil cylinder
- expansible sleeve
- core pipe
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a one-way synchronism expansible sleeve barrel oil cylinder. While in use, an isolating core pipe which is arranged in the inner of the plunger piston [3] can respectively do oil supplying for the plunger pistons of all levels of the expansible sleeve barrel oil cylinder. The speed of the plunger pistons of the two stage are adjusted respectively, so the expansible sleeve barrel oil cylinder can keep constant speed in the course of movement, and the stable pressure of the hydraulic system can be realized.
Description
The utility model belongs to fluid drive apparatus, and it is a kind ofly to distinguish fuel feeding for two-stage plunger in that oil cylinder is inner, and is made it to reach the single-acting extension sleeve oil cylinder of synchronous purpose by the speed that the hydraulic pressure bridge circuit that series flow control valve and one-way valve are formed is regulated plungers at different levels.This model utility since adopted the two-stage oil cylinder respectively the method for oil-feed make two-stage plunger motion simultaneously all the time in the overall process of work, thereby the unexpected variation that can not produce speed, and pressure stability are so can be widely used in elevation and subsidence mechanical.
Use single-acting extension sleeve oil cylinder and can under the short condition of oil cylinder, obtain bigger stroke, and processing technology is also fairly simple.But at present used single-acting extension sleeve oil cylinder all is a pipeline fuel feeding in the elevation and subsidence mechanical, so the rising of plungers at different levels and descending can only be carried out successively.Because the area difference of two-stage plunger just makes the speed of oil cylinder change suddenly and fuel supply flow rate is the same all the time.This is obviously inappropriate for elevation and subsidence mechanical.Required flow when certainly this also can change plunger motion at different levels with the method for two-stage speed governing makes the speed of two-stage plunger motion reach consistent.But the garden of convergence part component velocity transition that wants to make the two-stage plunger motion is sliding and also be very difficult naturally.
The purpose of this utility model is to be plungers at different levels fuel feeding respectively in the inside of oil cylinder, and the speed of its at different levels plugs is adjusted by the bridge circuit that series flow control valve and one-way valve are formed respectively.Two-stage plunger just can rise or descend in whole motion process all the time simultaneously like this.Thereby guaranteed the stable of oil cylinder movement velocity.And the pressure of hydraulic system does not change.
The visible accompanying drawing 1 of structure of the present utility model, it is by cylinder body＜1 〉, plunger (2), plunger (3) is every stream core pipe (4), chassis (5), guide sleeve (6), guide sleeve (7), seal ring (8), (9), (10), and locking nut (11), (12) are formed.A chamber and B chamber are by being separated every stream core pipe (4), be contained on the chassis (5) every stream core pipe (4), and be sleeved in the plunger (3), and the plug of plunger (2) can gone up slip every stream core pipe (4), and is sealed by seal ring (10).
Working principle of the present utility model is seen accompanying drawing 2, by the pressure oil of oil pump output through one-way valve, H type three-position four-way valve, the bridge circuit that the series flow control valve of two parallel connections and one-way valve are formed reaches A chamber and B chamber that two Pilot operated check valves enter single-acting extension sleeve oil cylinder at last respectively.In the bridge circuit of series flow control valve and one-way valve composition, the one-way valve group has played the effect of rectification.It makes oil cylinder pressure oil when rising and descend to pass through series flow control valve along a direction all the time.Adjust two series flow control valves respectively and just can make two-stage plunger motion simultaneously under the effect of the pressure oil of different pressures.The pressure of hydraulic system is set up by relief valve, and Pilot operated check valve has prevented that oil hydraulic cylinder from descending automatically when stop motion.If the series flow control valve in the system is replaced with proportional velocity regulating valve then can improve synchronization accuracy greatly, but expense is than higher.
The pressure of two-stage plunger, flow, the relation formula of sectional area of plunger and load and speed:
P
1=(F)/(S
b) (P
1)/(P
2)=(S
a)/(S
b)
(Q
2)/(Q
3)=(S
a)/(S
2) V
2=V
3=(Q
2)/(S
a)
S
a=S
1-S
3S
b=S
2-S
3
F---load
P
1---B chamber oil pressure
P
2---A chamber oil pressure
Q
2---A chamber flow
Q
3---B chamber flow
S
1---plunger (2) sectional area
S
2---plunger (3) sectional area
S
3---every stream core pipe (4) sectional area
V
2---the speed of plunger (2) motion
V
3---the speed of plunger (3) motion
Characteristics of the present utility model are: by every stream the core pipe (4) in oil cylinder inside every stream, make the flow that enters A chamber and B chamber respectively adjusted, just to reach the pressure of speed and system in the process of work constant for the extension sleeve oil cylinder like this, reaches the stable operation of equipment.
Claims (1)
- The utility model belongs to fluid drive apparatus, it is a kind of single-acting synchronization telescope sleeve oil cylinder, it is characterized in that by chassis [5] every stream core pipe [4], cylinder body [1], plunger [2], plunger [3], guide sleeve [6], guide sleeve [7], seal ring [8], [9], [10], locking nut [1], [2] form, be contained on the chassis [5] every stream core pipe [4], and be sleeved on plunger [3] inside, one end of cylinder body [1] is fixed on the chassis [5], plunger [2] is sleeved on the inside of cylinder body [1] by guide sleeve [6], the plug of plunger [2] lower end can gone up slip every stream core pipe [5], its sealing is realized that by seal ring [10] plunger [3] is sleeved on the inside of plunger [2] by guide sleeve [7].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213346 CN87213346U (en) | 1987-09-16 | 1987-09-16 | One-way synchronism expansible sleeve ram |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213346 CN87213346U (en) | 1987-09-16 | 1987-09-16 | One-way synchronism expansible sleeve ram |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87213346U true CN87213346U (en) | 1988-08-10 |
Family
ID=4827861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87213346 Withdrawn CN87213346U (en) | 1987-09-16 | 1987-09-16 | One-way synchronism expansible sleeve ram |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87213346U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788250A (en) * | 2009-12-31 | 2010-07-28 | 中国科学院空间科学与应用研究中心 | Rocket-carrying telescope-feed boom deployment mechanism |
| CN101949398A (en) * | 2010-09-13 | 2011-01-19 | 三一重工股份有限公司 | Single-action hydraulic oil cylinder and paver with same |
| CN101966904A (en) * | 2010-09-13 | 2011-02-09 | 常州亿晶光电科技有限公司 | Cell laminate cache car |
| CN105545875A (en) * | 2016-01-27 | 2016-05-04 | 徐存然 | Lifting arm hydraulic rod of grassland fence machine |
| CN106640840A (en) * | 2017-01-22 | 2017-05-10 | 重庆市巴山液压附件厂有限公司 | Two-stage double-acting lifting hydraulic oil cylinder used on scout car |
| CN106808582A (en) * | 2017-01-23 | 2017-06-09 | 山西高行液压股份有限公司 | High-speed railway track plate pre-tensioning system flowing water unit production line integral elevating pedestal |
| CN111071965A (en) * | 2019-12-01 | 2020-04-28 | 王磊 | Lifting equipment applied to auxiliary power line erection |
-
1987
- 1987-09-16 CN CN 87213346 patent/CN87213346U/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788250A (en) * | 2009-12-31 | 2010-07-28 | 中国科学院空间科学与应用研究中心 | Rocket-carrying telescope-feed boom deployment mechanism |
| CN101788250B (en) * | 2009-12-31 | 2013-03-20 | 中国科学院空间科学与应用研究中心 | Rocket-carrying telescope-feed boom deployment mechanism |
| CN101949398A (en) * | 2010-09-13 | 2011-01-19 | 三一重工股份有限公司 | Single-action hydraulic oil cylinder and paver with same |
| CN101966904A (en) * | 2010-09-13 | 2011-02-09 | 常州亿晶光电科技有限公司 | Cell laminate cache car |
| CN101966904B (en) * | 2010-09-13 | 2013-12-04 | 常州亿晶光电科技有限公司 | Cell laminate cache car |
| CN105545875A (en) * | 2016-01-27 | 2016-05-04 | 徐存然 | Lifting arm hydraulic rod of grassland fence machine |
| CN106640840A (en) * | 2017-01-22 | 2017-05-10 | 重庆市巴山液压附件厂有限公司 | Two-stage double-acting lifting hydraulic oil cylinder used on scout car |
| CN106808582A (en) * | 2017-01-23 | 2017-06-09 | 山西高行液压股份有限公司 | High-speed railway track plate pre-tensioning system flowing water unit production line integral elevating pedestal |
| CN111071965A (en) * | 2019-12-01 | 2020-04-28 | 王磊 | Lifting equipment applied to auxiliary power line erection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |