CN108488124A - A kind of hydraulic drill rig hydraulic control one-way valve - Google Patents
A kind of hydraulic drill rig hydraulic control one-way valve Download PDFInfo
- Publication number
- CN108488124A CN108488124A CN201810385669.5A CN201810385669A CN108488124A CN 108488124 A CN108488124 A CN 108488124A CN 201810385669 A CN201810385669 A CN 201810385669A CN 108488124 A CN108488124 A CN 108488124A
- Authority
- CN
- China
- Prior art keywords
- control
- check valve
- hydraulic
- valve
- valve body
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/027—Check valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of bidirectional hydraulic control check valve, including valve body, opposite corresponding two check valves are provided in valve body, the left control piston and right control piston being arranged between two check valves, it is left, it is provided with control spool between right control piston, it is provided with oil inlet passage on the valve body, oil inlet passage passes through the new structural bidirectional hydraulic control check valve of respective check valve respectively, it can also internal control with external control, it can use the opening of channel interior oil circuit control check valve that the opening for controlling check valve by external oil circuit can be used again, to meet in hydraulic drill rig, it is used on drill carriage, to simplify hydraulic system operation.
Description
Technical field
The present invention relates to a kind of hydraulic control one-way valves, more particularly to a kind of bidirectional hydraulic lock.
Background technology
It is in existing hydraulic system (the especially engineering machinery such as hydraulic drill rig, hydraulic drill rig) to be applied to check valve more, be
The control valve for only allowing one direction of fluid to flow.Hydraulic control one-way valve is check valve can be made anti-by the pressure of control fluid
To the valve of flowing.
Two hydraulic control one-way valves are arranged symmetrically, and existing frequently-used bidirectional hydraulic is just constituted with a control piston control
Lock, control oil circuit are internal control (such as Fig. 1).V1, V2 mouthfuls connect reversal valve, and C1, C2 mouthfuls connect executive component.Two pipeline oils can be controlled
The on-off of liquid.Its operation principle is exactly that a road binders forward stream can directly be passed through when logical by check valve, and another road binders is reversed
Must rely on the pressure in previous circuit that control piston is pushed to open check valve hydraulic pressure when circulation could circulate.When two chamber forward directions all
When obstructed oil, reversely since the effect of check valve is also obstructed, is not interfered by external world's load, play the work of locking executing agency
With.First mechanism oil inlet and outlet one bidirectional hydraulic lock of concatenation typically is being executed, so that executing agency can be in office in not fuel feeding
Meaning position stops.
Invention content
Solving coal mine present invention aims at offer one kind, hydraulic lock had not only needed external control but also had needed in systems with hydraulic drill rig
A kind of hydraulic drill rig hydraulic control one-way valve of the problem of internal control.
To achieve the above object, the present invention can take following technical proposals：
A kind of bidirectional hydraulic control check valve of the present invention, including valve body are provided with opposite corresponding two lists in valve body
To valve, the left control piston being arranged between two check valves and right control piston, control is provided between left and right control piston
Spool is provided with oil inlet passage on the valve body, and oil inlet passage passes through respective check valve respectively.
The invention has the advantages that.New structural bidirectional hydraulic control check valve, can also internal control with external control, you can with pipe
The opening that check valve is controlled by external oil circuit can be used in the opening of road internal oil passages control check valve again, to meet in hydraulic drill
It is used on machine, drill carriage, to simplify hydraulic system operation.
Description of the drawings
Fig. 1 is the structural schematic diagram of traditional bidirectional hydraulic lock.
Fig. 2 is the structural schematic diagram of the bidirectional hydraulic control check valve of the present invention.
Fig. 3 is the oil circuit figure of the present invention.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of bidirectional hydraulic control check valve of the present invention, including valve body are provided with opposite corresponding two lists in valve body
To valve, the left control piston being arranged between two check valves and right control piston, control is provided between left and right control piston
Spool is provided with oil inlet passage on the valve body, and oil inlet passage passes through respective check valve respectively.
With reference to attached drawing 2, oil inlet is divided into V1 and V2, V1 mono- through to C1, V2 mono- through to C2, be additionally provided on valve body with
The X control mouths that spool communicates, if V1 mouthfuls of oil inlets, fluid enter C1 mouthfuls by check valve.V1 mouthfuls of high pressure oil acts on a left side simultaneously
On the left side for controlling piston, left control piston, spool and right control piston is pushed to move right, the open-top right side of right control piston
The spool of check valve, fluid flow to V2 mouthfuls from C2 mouthfuls.Vice versa.If x control mouth fuel feeding, high pressure oil enters where spool
Control chamber, be respectively acting on it is left control piston right side and it is right control piston left side, push two control pistons to
Both sides move, and push the spool of both sides check valve open respectively, then allow fluid to flow freely.
Attached drawing 3 is bidirectional hydraulic control check valve making a practical application of a principle in hydraulic drill rig hydraulic system, is changed when pushing right side
When being moved upwards to the spool of valve, high pressure oil is exited into from the hydraulic fluid port for indicating advance on the right side of pilot operated directional control valve, pushes check valve
Spool, which is opened, enters oil cylinder rodless cavity, and cylinder piston rod is pushed to stretch out.The check valve in left side is passed through in the oil return of cylinder rod chamber, because
It is right side with the presence of high pressure oil, so piston pushes left side check valve to open, fluid flows back to reversal valve through this check valve.Above-mentioned mistake
Journey oily internal control in order to control.Oil cylinder can be allowed to lock at an arbitrary position.When needing oil-tank floating and right side change-over valve core is in
Position, but when oil cylinder can shift one's position under the effect of external force inverts when to lead to oil at X mouthful be that left side change-over valve core moves downward
Hydraulic fluid port is fuel-displaced, then oil cylinder can float.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (1)
1. a kind of bidirectional hydraulic control check valve, which is characterized in that including valve body, opposite corresponding two are provided in valve body unidirectionally
Valve, the left control piston being arranged between two check valves and right control piston are provided with control valve between left and right control piston
Core, is provided with oil inlet passage on the valve body, and oil inlet passage is additionally provided with logical respectively by respective check valve on the valve body
To the control mouth of control spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810385669.5A CN108488124A (en) | 2018-04-26 | 2018-04-26 | A kind of hydraulic drill rig hydraulic control one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810385669.5A CN108488124A (en) | 2018-04-26 | 2018-04-26 | A kind of hydraulic drill rig hydraulic control one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108488124A true CN108488124A (en) | 2018-09-04 |
Family
ID=63313124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810385669.5A Pending CN108488124A (en) | 2018-04-26 | 2018-04-26 | A kind of hydraulic drill rig hydraulic control one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108488124A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109956A (en) * | 2022-01-04 | 2022-03-01 | 力源液压（苏州）有限公司 | Two-way variable pump end cover assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2215045Y (en) * | 1994-03-23 | 1995-12-13 | 哈尔滨四海工程机械制造公司 | Double liquid control locking-valve |
| RU51670U1 (en) * | 2005-09-07 | 2006-02-27 | Открытое акционерное общество "Подмосковный научно-исследовательский и проектно-конструкторский угольный институт" (ОАО "ПНИУИ") | BILATERAL LOCK BILATERAL |
| CN201065870Y (en) * | 2007-05-28 | 2008-05-28 | 徐金山 | Superposed type hydraulic control one-way valve |
| CN202360110U (en) * | 2011-10-28 | 2012-08-01 | 乐清市东风煤矿设备有限公司 | Floating hydraulic bidirectional lock |
| CN206346977U (en) * | 2016-12-23 | 2017-07-21 | 东洋重工机（大连）有限公司 | A kind of dual hydraulic control one-way valve |
| CN208281258U (en) * | 2018-04-26 | 2018-12-25 | 冀凯河北机电科技有限公司 | A kind of hydraulic drill rig hydraulic control one-way valve |
-
2018
- 2018-04-26 CN CN201810385669.5A patent/CN108488124A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2215045Y (en) * | 1994-03-23 | 1995-12-13 | 哈尔滨四海工程机械制造公司 | Double liquid control locking-valve |
| RU51670U1 (en) * | 2005-09-07 | 2006-02-27 | Открытое акционерное общество "Подмосковный научно-исследовательский и проектно-конструкторский угольный институт" (ОАО "ПНИУИ") | BILATERAL LOCK BILATERAL |
| CN201065870Y (en) * | 2007-05-28 | 2008-05-28 | 徐金山 | Superposed type hydraulic control one-way valve |
| CN202360110U (en) * | 2011-10-28 | 2012-08-01 | 乐清市东风煤矿设备有限公司 | Floating hydraulic bidirectional lock |
| CN206346977U (en) * | 2016-12-23 | 2017-07-21 | 东洋重工机（大连）有限公司 | A kind of dual hydraulic control one-way valve |
| CN208281258U (en) * | 2018-04-26 | 2018-12-25 | 冀凯河北机电科技有限公司 | A kind of hydraulic drill rig hydraulic control one-way valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109956A (en) * | 2022-01-04 | 2022-03-01 | 力源液压（苏州）有限公司 | Two-way variable pump end cover assembly |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |