A kind of valve block structure of electromagnetic valve double loop hydraulic power station
Technical field
This utility model relates to the valve block structure of a kind of electromagnetic valve double loop hydraulic power station, relates to hydraulic system technology neck
Territory.
Background technology
The valve block of hydraulic power station is the control axis of power station hydraulic system, the valve block hydraulic pressure of traditional hydraulic power station
Circuit is single group, can only realize the normal operation of a use instrument, and structure is complicated, and cost is high, job insecurity;Traditional liquid
Hydraulic flow in the use instrument at pressure power station is unalterable, cannot increase when needed.
Utility model content
In view of the deficiencies in the prior art, technical problem to be solved in the utility model is to provide a kind of electromagnetic valve double loop
The valve block structure of hydraulic power station.
In order to solve above-mentioned technical problem, the technical solution of the utility model is: a kind of electromagnetic valve double loop hydraulic power
The valve block structure stood, including valve body, described valve body is provided with two groups of undergrounds, and described underground all includes that oil inlet pipe connects
Head, flowline male joint, oil return pipe female joint, normally open solenoid valve, valve body oil duct, described valve body is provided with two groups of hydraulic pressure of connection
The oil returning pipe joint of circuit and oil strainer, described inlet connector, normally open solenoid valve, oil strainer, oil returning pipe joint connect
Composition off-load oil circuit, described inlet connector, normally open solenoid valve, flowline male joint, oil return pipe female joint, oil strainer, return
Oil connection connection composition working oil path, described off-load oil circuit and working oil path carry out oil circuit switching through normally open solenoid valve.
Preferably, described underground also includes the overflow valve connecting valve body oil duct.
Preferably, described valve body oil duct include the first oil duct, the second oil duct, the 3rd oil duct, the 4th oil duct, the 5th oil duct,
Oil strainer oil-in, oil strainer oil-out, described inlet connector and the first oil duct connect, and described first oil duct is through second
Oil duct is connected with normally open solenoid valve, and described normally open solenoid valve is connected with oil strainer oil-in through the 3rd oil duct, and described oil filters
Device oil-in is connected with oil strainer oil-out, and described oil strainer oil-out is connected with oil returning pipe joint, described normally opened electromagnetism
Valve is also connected with flowline male joint through the 4th oil duct, described oil return pipe female joint through the 5th oil duct and normally open solenoid valve, the 3rd
Oil duct connects, and described 3rd oil duct and the 5th oil duct are connected with the inside unloading channel end of normally open solenoid valve respectively.
Preferably, described valve body being additionally provided with normally closed solenoid valve, described valve body oil duct includes the 6th oil duct and the 7th oil
Road, described 6th oil duct is provided with the port of the flowline male joint towards one group of underground, and described 7th oil duct is provided with
Towards the port of the flowline male joint of another group underground, described normally closed solenoid valve is connected to the 6th oil duct and the 7th oil duct
Between.
Preferably, described inlet connector and normally open solenoid valve are positioned at the same side of valve body, described flowline male joint with
Oil return pipe female joint is positioned at the same side of valve body, and described overflow valve and normally closed solenoid valve are positioned at the same side of valve body.
Preferably, described overflow valve is positioned on the first oil duct.
Compared with prior art, this utility model has the advantages that this electromagnetic valve double loop hydraulic power station
Valve block structure simple in construction, uses two circuit underground in the design of valve block, completes by controlling normally open solenoid valve
Regulation and control to hydraulic power station hydraulic system, thus reach two use instruments and run well, simple and convenient, work is steady
Fixed;When normally closed solenoid valve is in energising duty, now normally open solenoid valve is also simultaneously in energising duty, due to often
Close electromagnetic valve in running order after connected the flowline male joint of two groups of undergrounds, now two flowline male joints
Pressure oil flow is collected in a passage, and in this condition, if only opening a use instrument, this uses instrument
In hydraulic flow can increasing at double, its power strengthens the most accordingly, and solving needs to strengthen separate unit under special circumstances and make
By a difficult problem for implement power.
The utility model is described in more detail with detailed description of the invention below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the organigram one of this utility model embodiment.
Fig. 2 is the organigram two of this utility model embodiment.
Fig. 3 is the off-load asphalt principle schematic diagram of underground.
Fig. 4 is the working oil path principle schematic of underground.
Fig. 5 is the principle schematic that normally closed solenoid valve is in normally off.
Fig. 6 is the principle schematic that normally closed solenoid valve is in energising duty.
In figure: 1-valve body, 2-inlet connector, 3-flowline male joint, 4-oil return pipe female joint, 5-normally open solenoid valve,
6-oil returning pipe joint, 7-oil strainer, 8-overflow valve, 9-the first oil duct, 10-the second oil duct, 11-the 3rd oil duct, 12-the 4th oil
Road, 13-the 5th oil duct, 14-oil strainer oil-in, 15-uses instrument, 16-normally closed solenoid valve, 17-the 6th oil duct, 18-
Seven oil ducts, 19-port.
Detailed description of the invention
For features described above of the present utility model and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing,
It is described in detail below.
As shown in Fig. 1 ~ 6, the valve block structure of a kind of electromagnetic valve double loop hydraulic power station, including valve body 1, on described valve body
Be provided with two groups of undergrounds, described underground all include inlet connector 2, flowline male joint 3, oil return pipe female joint 4,
Normally open solenoid valve 5, valve body oil duct, described valve body is provided with oil returning pipe joint 6 and the oil strainer connecting two groups of undergrounds
7, described inlet connector, normally open solenoid valve, oil strainer, oil returning pipe joint connection composition off-load oil circuit, described oil inlet pipe connects
Head, normally open solenoid valve, flowline male joint, oil return pipe female joint, oil strainer, oil returning pipe joint connection composition working oil path,
Described off-load oil circuit and working oil path carry out oil circuit switching through normally open solenoid valve.
In this utility model embodiment, described underground also includes the overflow valve 8 connecting valve body oil duct.
In this utility model embodiment, described valve body oil duct include first oil duct the 9, second oil duct the 10, the 3rd oil duct 11,
4th oil duct the 12, the 5th oil duct 13, oil strainer oil-in 14, oil strainer oil-out, described inlet connector and the first oil
Road connects, and described first oil duct is connected with normally open solenoid valve through the second oil duct, and described normally open solenoid valve is through the 3rd oil duct and oil mistake
Filter oil-in connect, described oil strainer oil-in is connected with oil strainer oil-out, described oil strainer oil-out and time
Oil connection connects, and described normally open solenoid valve is also connected with flowline male joint through the 4th oil duct, described oil return pipe female joint warp
5th oil duct is connected with normally open solenoid valve, the 3rd oil duct, described 3rd oil duct and the 5th oil duct respectively with in normally open solenoid valve
Portion's unloading channel end connects.
In this utility model embodiment, described valve body being additionally provided with normally closed solenoid valve 16, described valve body oil duct includes
6th oil duct 17 and the 7th oil duct 18, described 6th oil duct is provided with the port of the flowline male joint towards one group of underground
19, described 7th oil duct is provided with the port of the flowline male joint towards another group underground, and described normally closed solenoid valve is even
It is connected between the 6th oil duct and the 7th oil duct, controls the 6th oil duct and the connection of the 7th oil duct or do not connect.
In this utility model embodiment, described inlet connector and normally open solenoid valve are positioned at the same side of valve body, described
Flowline male joint and oil return pipe female joint are positioned at the same side of valve body, and described overflow valve and normally closed solenoid valve are positioned at the same of valve body
Side.
In this utility model embodiment, described overflow valve is positioned on the first oil duct.
In this utility model embodiment, when normally open solenoid valve is in normally open, pressure oil connects from oil inlet pipe respectively
Head enters, and flows directly into oil strainer through the first oil duct, the second oil duct, the inside unloading channel of normally open solenoid valve, the 3rd oil duct
Oil-in, pressure oil flows to oil strainer from oil strainer oil-in afterwards, fuel-displaced from the oil strainer of filter after filtering
Mouth flows to oil returning pipe joint, then flows into hydraulic oil container, and now hydraulic system is in the dry running of unloading condition.
In this utility model embodiment, when normally open solenoid valve is in energising duty, within normally open solenoid valve
Unloading channel is closed, and now pressure oil enters from inlet connector respectively, through the first oil duct, the second oil duct, normally open solenoid valve
Inner passage, the 4th oil duct flow to flowline male joint, and flow to the oil-in of use instrument 15 from there, pressure after work
Oil flows to oil return pipe female joint from the oil return opening of the instrument of use respectively, and pressure oil is successively through the 5th oil duct, the 3rd oil duct, oil afterwards
Filter oil-in flows to oil strainer, flows to oil returning pipe joint, then from the oil strainer oil-out of filter after filtering
Flowing into hydraulic oil container, now hydraulic system completes the cycle of operation of pressure oil.
In this utility model embodiment, this hydraulic system is battery valve dual circuit device, as long as manipulating two groups of liquid respectively
The normally open solenoid valve on line ball road, will realize singly opening or double opening or double stop of two use instruments.
In this utility model embodiment, when normally closed solenoid valve is in energising duty, now normally open solenoid valve is also
Be simultaneously in energising duty, due to normally closed solenoid valve in running order after, the 6th oil duct and the 7th oil duct communicate, connect
The flowline male joint of two groups of undergrounds, the pressure oil flow of now two flowline male joints is collected at a passage
In, in this condition, if only opening a use instrument, the hydraulic flow in this use instrument can increasing at double,
Its power strengthens the most accordingly, solves the difficult problem needing to strengthen separate unit use implement power under special circumstances.
This utility model is not limited to above-mentioned preferred forms, and anyone can obtain under enlightenment of the present utility model
Go out the valve block structure of other various forms of electromagnetic valve double loop hydraulic power stations.All according to this utility model claim institute
Impartial change and the modification done, all should belong to covering scope of the present utility model.