CN201818571U - Hydraulic system controlling two oil cylinders to sequentially telescope - Google Patents
Hydraulic system controlling two oil cylinders to sequentially telescope Download PDFInfo
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- CN201818571U CN201818571U CN 201020544284 CN201020544284U CN201818571U CN 201818571 U CN201818571 U CN 201818571U CN 201020544284 CN201020544284 CN 201020544284 CN 201020544284 U CN201020544284 U CN 201020544284U CN 201818571 U CN201818571 U CN 201818571U
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Abstract
The utility model discloses a hydraulic system controlling two oil cylinders to sequentially telescope. The hydraulic system belongs to a hydraulic transmission system, and is characterized in that a main valve comprises two reversing valves, and the main valve forms two changing and reversing work oil lines respectively between the two oil cylinders and an oil pump through the two reversing valves, wherein the work oil line I of the reversing valve I is connected with a rodless cavity of the oil cylinder I through a balancing valve I; the work oil lines II of the reversing valves I and II are firstly combined and then is connected with a rodless cavity of the oil cylinder II through a balancing valve II; the work oil line I of the reversing valve I is connected with rod cavities of the two oil cylinders, and meanwhile is connected with a first guide oil port of the balancing valve I and an oil outlet of a tee-joint electromagnetic valve; and an oil inlet and an oil drain hole of the tee-joint electromagnetic valve are respectively communicated with a first guide oil port of the balancing valve II and a hydraulic oil tank. In the design, the oil lines are simple and clear; after the work oil lines of the two reversing valves are combined, the work flow is larger than that of a single reversing valve; the telescopic speed of the oil cylinder II is increased; the work efficiency is remarkably improved; and the oil lines are convenient to maintain.
Description
Technical field
The flexible in proper order hydraulic system of two oil cylinders of a kind of control of the utility model belongs to Hydraulic Power Transmission System, is specifically related to control the flexible in proper order Hydraulic Power Transmission System of two oil cylinders.
Background technique
In construction machinery hydraulic system, when two interconnective oil cylinders need be realized successively expanding-contracting action, for reducing the main valve oil circuit, a slice solenoid directional control valve control commonly used, and the installation electro-hydraulic reversing valve switches the working oil path between two oil cylinders, utilize equilibrium valve and solenoid valve to pin one of them oil cylinder simultaneously, make another oil cylinder to stretch arbitrarily.Because hydrovalve is very easily blocked spool by impurity and causes fault, need dismounting and clean, wherein many and pipeline of electro-hydraulic reversing valve hydraulic fluid port connects complicatedly, and during hydraulic system fault, the easy-to-search failure cause does not make maintenance work very inconvenient.
The model utility content
The purpose of this utility model provides the flexible in proper order hydraulic system of two oil cylinders of a kind of control, realizes that with simple and clear connecting pipeline and simple and direct operation the order of two oil cylinders is flexible, and easy maintenance.
The utility model is achieved through the following technical solutions:
The flexible in proper order hydraulic system of two oil cylinders of a kind of control, comprise oil pump, fuel tank, main valve, two oil cylinders, two equilibrium valves and three-way magnetic valve, the piston rod of oil cylinder one can freely stretch, the cylinder barrel of oil cylinder two is completely fixed, the piston rod of oil cylinder two relative fixed then and between the cylinder barrel of oil cylinder one, characteristics are that main valve is made up of selector valve one and 2 two selector valves of selector valve, and main valve passes through these two selector valves respectively at oil cylinder one, two and oil pump between form two working oil path of alternation commutation, the working oil path one of selector valve one is connected with the rodless cavity of oil cylinder one by equilibrium valve one; After the working oil path two of selector valve one, two merges in advance, be connected with the rodless cavity of oil cylinder two by equilibrium valve two again; The working oil path one of selector valve two is connected with the rod chamber of two oil cylinders, also be connected with the oil outlet of equilibrium valve one guide's hydraulic fluid port and three-way magnetic valve simultaneously, the filler opening of three-way magnetic valve, drain tap then are communicated with guide's hydraulic fluid port, the hydraulic oil container of equilibrium valve two respectively.
The utility model oil circuit design is simple and direct, clear, when the hydrovalve spool stops up, need take corresponding equilibrium valve apart or three-way magnetic valve cleans or changes, and maintenance work is easy; During operation, because after the working oil path two of selector valve one, two merges, give the rodless cavity fuel feeding of oil cylinder two by equilibrium valve two, bigger than the working flow of single selector valve, can accelerate the stretching speed of oil cylinder two, increase work efficiency.
Description of drawings
Fig. 1 is the utility model hydraulic control system oil circuit connection diagram.
Embodiment
How now further specify the utility model in conjunction with the accompanying drawings implements:
The flexible in proper order hydraulic system of two oil cylinders of a kind of control of the utility model, comprise oil pump P, fuel tank X, main valve 2, two oil cylinders: oil cylinder A and oil cylinder B, two equilibrium valves: equilibrium valve 3 and equilibrium valve 4, three-way magnetic valve 5, the piston rod of oil cylinder A can freely stretch, the cylinder barrel of oil cylinder B is completely fixed, the piston rod of oil cylinder B relative fixed then and between the cylinder barrel of oil cylinder A, and main valve 2 is made up of selector valve 2-1 and two selector valves of selector valve 2-2, this selector valve is two three-position four-way valves, every change-over valve core meta function is the Y type, i.e. meta off-load, and three-way magnetic valve is open in usual, main valve 2 passes through these two selector valves respectively at two oil cylinder A, form two working oil path of alternation commutation between B and the oil pump P, the working oil path a1 of selector valve 2-1 is connected with the rodless cavity of oil cylinder A by equilibrium valve 3; The working oil path b 1 of selector valve 2-1 and the working oil path b2 of selector valve 2-2 are connected with the rodless cavity of oil cylinder B by equilibrium valve 4 after merging again; A road of the working oil path a2 of selector valve 2-2 directly is connected with the rod chamber of two oil cylinders, another road is connected with the oil outlet of equilibrium valve 3 guide's hydraulic fluid port x1 and three-way magnetic valve 5, and the filler opening of three-way magnetic valve 5, drain tap then are communicated with guide's hydraulic fluid port x2, the hydraulic oil container X of equilibrium valve 4 respectively.
Reversing valve operated 2-1 and selector valve 2-2 are to upper, after the pressure oil of pump P output then passes through working oil path b1, the b2 interflow of selector valve 2-1,2-2 respectively, enter the rodless cavity of oil cylinder B then through equilibrium valve 4, the piston rod of oil cylinder B is stretched out, because relative fixed between the piston rod of oil cylinder B and the cylinder barrel of oil cylinder A, so the cylinder barrel of oil cylinder A and piston rod also move simultaneously together, the oil return of oil cylinder B rod chamber is then flowed back to fuel tank through selector valve 2-2; After the piston rod of oil cylinder B stretches out fully, reversing valve operated again 2-1 is to the next, the pressure oil of working oil path a1 is through equilibrium valve 3, enter the rodless cavity of oil cylinder A, the piston rod of oil cylinder A stretches out, the oil return of oil cylinder A rod chamber is then flowed back to fuel tank X through the spool meta of selector valve 2-2, and oil cylinder B, oil cylinder A stretch out successively thus.
During withdrawal, three-way magnetic valve 5 is got, guide's hydraulic fluid port X2 of equilibrium valve 4 is communicated with off-load through three-way magnetic valve 5 with fuel tank X, equilibrium valve 4 can not reversely be circulated, thereby with oil cylinder B locking, reversing valve operated then 2-2 is to the next, then pressure oil enters the rod chamber of oil cylinder A through working oil path a2, the piston rod withdrawal of oil cylinder A, the oil return of oil cylinder A rodless cavity is through equilibrium valve 3 reverse circulations, and the spool meta through selector valve 2-1 flows back to fuel tank X again; After oil cylinder A piston rod is withdrawn fully, make three-way magnetic valve 5 dead electricity, reversing valve operated again 2-2 is to the next, then pressure oil enters oil cylinder B rod chamber, the piston rod withdrawal of oil cylinder B, also withdrawal together of the cylinder barrel of oil cylinder A and piston rod simultaneously, equilibrium valve 4 reverse circulations are then passed through in the oil return of oil cylinder B rodless cavity, respectively through spool meta and the next fuel tank that flows back to of selector valve 2-2 of selector valve 2-1, oil cylinder A, oil cylinder B withdraw successively thus again.
So, go round and begin again, oil cylinder A, oil cylinder B stretch out successively, successively withdrawal.Thereby reach the purpose of this utility model.
Claims (1)
1. control the flexible in proper order hydraulic system of two oil cylinders for one kind, comprise oil pump, fuel tank, main valve, two oil cylinders, two equilibrium valves and three-way magnetic valve, the piston rod of oil cylinder one can freely stretch, the cylinder barrel of oil cylinder two is completely fixed, the piston rod of oil cylinder two relative fixed then and between the cylinder barrel of oil cylinder one, it is characterized in that main valve is made up of selector valve one and 2 two selector valves of selector valve, main valve by these two selector valves respectively at oil cylinder one, two and oil pump between form two working oil path of alternation commutation, the working oil path one of selector valve one is connected with the rodless cavity of oil cylinder one by equilibrium valve one; After the working oil path two of selector valve one, two merges in advance, be connected with the rodless cavity of oil cylinder two by equilibrium valve two again; An oil circuit of the working oil path one of selector valve two directly is connected with the rod chamber of two oil cylinders, another oil circuit is connected with the oil outlet of equilibrium valve one guide's hydraulic fluid port and three-way magnetic valve, and the filler opening of three-way magnetic valve, drain tap then are communicated with guide's hydraulic fluid port, the hydraulic oil container of equilibrium valve two respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020544284 CN201818571U (en) | 2010-09-27 | 2010-09-27 | Hydraulic system controlling two oil cylinders to sequentially telescope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020544284 CN201818571U (en) | 2010-09-27 | 2010-09-27 | Hydraulic system controlling two oil cylinders to sequentially telescope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818571U true CN201818571U (en) | 2011-05-04 |
Family
ID=43916528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020544284 Expired - Fee Related CN201818571U (en) | 2010-09-27 | 2010-09-27 | Hydraulic system controlling two oil cylinders to sequentially telescope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818571U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322455A (en) * | 2011-10-11 | 2012-01-18 | 江苏卡威专用汽车制造有限公司 | Oil hydraulic circuit by sequence valve and spacing Air Valve Control |
| CN102434510A (en) * | 2011-11-23 | 2012-05-02 | 中联重科股份有限公司 | Pumping equipment, high-low pressure switching system thereof, pumping system and operation method thereof |
| CN103010976A (en) * | 2012-12-17 | 2013-04-03 | 中联重科股份有限公司 | Hydraulic system for controlling oil cylinders to sequentially stretch, horizontal supporting leg system and engineering machinery |
| CN103423221A (en) * | 2013-07-24 | 2013-12-04 | 三一汽车起重机械有限公司 | Multi-oil-cylinder sequence telescopic hydraulic system and engineering machine |
| CN104279199A (en) * | 2014-10-21 | 2015-01-14 | 恒天创丰重工有限公司 | Hydraulic supporting control system and anti-misoperation supporting device |
| CN107061395A (en) * | 2017-04-13 | 2017-08-18 | 宜昌精博艺工程机械设备制造有限公司 | Rock drill air defense is hit, anti-sticking energy-saving type Hydraulic system and control method |
| CN106949108B (en) * | 2017-04-13 | 2018-07-24 | 宜昌精博艺工程机械设备制造有限公司 | Hydraulic system and control method is impacted in rock drill air defense |
| CN108513600A (en) * | 2016-12-28 | 2018-09-07 | 白保忠 | A reciprocating sequence valve and its sequence driving method |
| CN110980528A (en) * | 2019-11-19 | 2020-04-10 | 徐州重型机械有限公司 | Novel single-cylinder plug pin type telescopic system and control method |
| CN113503280A (en) * | 2021-07-13 | 2021-10-15 | 广东伊之密精密机械股份有限公司 | Injection hydraulic system and die casting machine |
-
2010
- 2010-09-27 CN CN 201020544284 patent/CN201818571U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322455A (en) * | 2011-10-11 | 2012-01-18 | 江苏卡威专用汽车制造有限公司 | Oil hydraulic circuit by sequence valve and spacing Air Valve Control |
| CN102322455B (en) * | 2011-10-11 | 2014-06-11 | 江苏卡威专用汽车制造有限公司 | Hydraulic circuit controlled by sequence valve and limit air valve |
| CN102434510B (en) * | 2011-11-23 | 2015-03-18 | 中联重科股份有限公司 | Pumping equipment, high-low pressure switching system thereof, pumping system and operation method thereof |
| CN102434510A (en) * | 2011-11-23 | 2012-05-02 | 中联重科股份有限公司 | Pumping equipment, high-low pressure switching system thereof, pumping system and operation method thereof |
| CN103010976A (en) * | 2012-12-17 | 2013-04-03 | 中联重科股份有限公司 | Hydraulic system for controlling oil cylinders to sequentially stretch, horizontal supporting leg system and engineering machinery |
| CN103010976B (en) * | 2012-12-17 | 2014-12-24 | 中联重科股份有限公司 | Hydraulic system for controlling oil cylinders to sequentially stretch, horizontal supporting leg system and engineering machinery |
| CN103423221B (en) * | 2013-07-24 | 2015-10-28 | 三一汽车起重机械有限公司 | Multi-oil-cylinder sequence telescopic hydraulic system and engineering machinery |
| CN103423221A (en) * | 2013-07-24 | 2013-12-04 | 三一汽车起重机械有限公司 | Multi-oil-cylinder sequence telescopic hydraulic system and engineering machine |
| CN104279199A (en) * | 2014-10-21 | 2015-01-14 | 恒天创丰重工有限公司 | Hydraulic supporting control system and anti-misoperation supporting device |
| CN104279199B (en) * | 2014-10-21 | 2016-06-22 | 恒天创丰重工有限公司 | A kind of hydraulic pressure support controls system and support arrangement is propped up in anti-misoperation |
| CN108513600A (en) * | 2016-12-28 | 2018-09-07 | 白保忠 | A reciprocating sequence valve and its sequence driving method |
| CN107061395A (en) * | 2017-04-13 | 2017-08-18 | 宜昌精博艺工程机械设备制造有限公司 | Rock drill air defense is hit, anti-sticking energy-saving type Hydraulic system and control method |
| CN107061395B (en) * | 2017-04-13 | 2018-07-24 | 宜昌精博艺工程机械设备制造有限公司 | Rock drill air defense hits, anti-sticking energy-saving type Hydraulic system and control method |
| CN106949108B (en) * | 2017-04-13 | 2018-07-24 | 宜昌精博艺工程机械设备制造有限公司 | Hydraulic system and control method is impacted in rock drill air defense |
| CN110980528A (en) * | 2019-11-19 | 2020-04-10 | 徐州重型机械有限公司 | Novel single-cylinder plug pin type telescopic system and control method |
| CN113503280A (en) * | 2021-07-13 | 2021-10-15 | 广东伊之密精密机械股份有限公司 | Injection hydraulic system and die casting machine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20190927 |