CN206221422U - A kind of reliability test of solenoid directional control valve - Google Patents
A kind of reliability test of solenoid directional control valve Download PDFInfo
- Publication number
- CN206221422U CN206221422U CN201621222495.3U CN201621222495U CN206221422U CN 206221422 U CN206221422 U CN 206221422U CN 201621222495 U CN201621222495 U CN 201621222495U CN 206221422 U CN206221422 U CN 206221422U
- Authority
- CN
- China
- Prior art keywords
- control valve
- directional control
- solenoid directional
- time relay
- valve
- 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.)
- Active
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model provides a kind of reliability test of solenoid directional control valve, including solenoid directional control valve, and the oil inlet end of the solenoid directional control valve is connected by oil pump with fuel tank, and two ports of export of solenoid directional control valve are connected by pressure switch with counter respectively；Connected between two coil-ends of solenoid directional control valve a time relay group, a total counter of being connected between the solenoid directional control valve and time relay group；The time relay group is connected as solenoid directional control valve and provides working power with the first power supply, and heater is provided with the fuel tank.Experimental rig of the present utility model can simulate actual condition of the solenoid directional control valve on vehicle, while overall test cycle-index, reversal interval time can be set.The gearshift implementation rate of tested reversing solenoid valve is calculated respectively so as to judge to be tested the reliability of solenoid directional control valve, so as to improve the overall performance of fork truck finally by perform respectively number of times and total ratio for performing number of times of advance, neutral gear, reverse drive gear.
Description
Technical field
The utility model is related to a kind of solenoid directional control valve, and in particular to a kind of reliability test of solenoid directional control valve.
Background technology
It, with the industrial equipment of Electromagnetic Control, is the automatic foundamental element for controlling fluid that three position four-way electromagnetic valve is,
Belong to actuator, direction, flow, speed and other parameters of medium are adjusted in industrial control system.Have in magnetic valve
Closed chamber, through hole is provided with diverse location, and each hole connects different oil pipes, is piston in the middle of chamber, and two sides is two blocks of electromagnetism
Which side iron, the magnet coil energization valve body in which face will be attracted to, the magnetic valve internally spring in the case of cold
Middle position is automatically returned under effect and oil circuit is cut off.Different outages are turned on and off by the movement of application valve body, and are entered
Oilhole is normally opened, and hydraulic oil will enter different oil exit pipes, so as to just be controlled by controlling the current switching of electromagnet
Mechanical movement.
Solenoid directional control valve is the part of fork truck hydrodynamic gearbox assembly, it by change the flow direction of transmission oil respectively to
Advance, back clutch squeezes into the transmission oil with certain pressure, and engages corresponding friction plate, so as to realize that fork truck advances
Shelves, neutral gear, the conversion of reverse drive gear.But solenoid directional control valve is in practical work process due to originals such as oil product cleannes or electromagnetic attenuations
Because card valve or random failure phenomenon can often occur, once failure phenomenon occurs in solenoid directional control valve, fork truck just occurs that gear disappears
Lose, make its ability of losing the job.So the reliability of solenoid directional control valve is directly connected to the overall performance of fork truck, but industry at present
Reliability test also inside is carried out to it without special testing equipment.
The content of the invention
It is an object of the invention to provide a kind of reliability test of solenoid directional control valve.
The technical solution of the utility model is as follows：
A kind of reliability test of solenoid directional control valve, including solenoid directional control valve, the oil inlet end of the solenoid directional control valve
It is connected with fuel tank by oil pump, two ports of export of solenoid directional control valve are connected by pressure switch with counter respectively；Electromagnetism is changed
To a time relay group of being connected between two coil-ends of valve, connected between the solenoid directional control valve and time relay group one
Total counter；The time relay group is connected as solenoid directional control valve and provides working power with the first power supply, is set in the fuel tank
Having heaters.
Further scheme, the oil revolving end of the solenoid directional control valve is connected with fuel tank.
Further scheme, is provided with the overflow valve being connected with fuel tank between the oil pump and solenoid directional control valve.
The time relay group is formed in parallel by very first time relay and second time relay, the time relay
The promising second source that it provides working power of device group connection.
Transmission oil in fuel tank can be heated to suitable temperature and can for a long time enter trip temperature keep by heater, from
And simulate the oil temperature under solenoid directional control valve actual condition.Overflow valve serves the effect set up and adjust whole system pressure.
Experimental rig of the present utility model can simulate actual condition of the solenoid directional control valve on vehicle such as transmission oil temperature, pass
Carrying out under the operating modes such as dynamic oil pressure constantly repeatedly is commutated, while overall test cycle-index, reversal interval time can be set.And
Can respectively show that real-time test theory performs cycle-index and advance, the actual execution time of the difference of reverse drive gear by counter
Number.Tested reversing solenoid valve is calculated respectively with total ratio for performing number of times finally by the number of times that performs respectively of forward-reverse shelves
Gearshift implementation rate so as to judge the reliability of tested solenoid directional control valve.
So this experimental rig can detect the reliability of solenoid directional control valve, so as to improve the overall performance of fork truck.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is the utility model structural representation；
Fig. 2 is the schematic diagram of time relay group；
In figure：1- fuel tanks, 2- heaters, 3- oil pumps, 4- overflow valves, 5- solenoid directional control valves, 6.1- first pressures switch,
6.2- second pressures are switched, 7.1- reverse drive gear counters, 7.2- drive shift counters, 7.3- total counters；The 8- time relays
Group, the power supplys of 9- first, 10- second sources.
Specific embodiment
Below in conjunction with the accompanying drawings, by embodiment, the utility model is further described.
As shown in figure 1, a kind of reliability test of solenoid directional control valve, including solenoid directional control valve 5, the electromagnetic switch
The oil inlet end of valve 5 is connected by oil pump 3 with fuel tank 1, and two ports of export of solenoid directional control valve 5 are respectively by pressure switch and counting
Device is connected；Connected between two coil-ends of solenoid directional control valve 5 a time relay group 8, the solenoid directional control valve 5 and time relay
One total counter 7.3 of series connection between device group 8；The time relay group 8 is connected as solenoid directional control valve 5 and carries with the first power supply 9
For working power, heater 2 is provided with the fuel tank 1.
Further scheme, the oil revolving end H of the solenoid directional control valve 5 is connected with fuel tank 1.
Further scheme, is provided with the overflow valve 4 being connected with fuel tank 1 between the oil pump 3 and solenoid directional control valve 5.
When on-test, the transmission oil of heating can be sucked through B mouthfuls of outflow by oil pump 3 from its inlet port A ends, then
Squeeze into respectively in the oiler E for entering oilhole C and tested solenoid directional control valve 5 of overflow valve 4.Transmission oil into overflow valve 4
Can be returned directly in fuel tank 1 by the oil return opening D of overflow valve.Transmission oil simultaneous with pressure enters electromagnetism by oil inlet E
In reversal valve 5, the first power supply 9 is using time relay group 8 by M-M1, N-N1 alternately respectively to the two of solenoid directional control valve 5
Individual coil M1, N1 end powers respectively, causes the coil of solenoid directional control valve 5 to replace adhesive, so as to realize that it is past that solenoid directional control valve 5 is carried out
Multiple commutation, is often once advanced, retreats commutation and be set to a circulation, often carries out one cycle, and total counter 7.3 will increase
Once count and show.Also can arbitrarily be set per the interval between circulating twice.When reversing solenoid valve 5 changes to drive shift, band
The transmission oil of pressure will flow out and pressure transmission is switched to second pressure by being tested the port of export G of solenoid directional control valve 5
6.2, when the pressure for passing to second pressure switch 6.2 meets setting requirements, then second pressure switch 6.2 will be connected；
Forward counter 7.2 will increase and once count simultaneously.When not reaching sets requirement value if there is card valve or pressure, the
Two pressure switches 6.2 would not be connected, and forward counter 7.2 there will not be change.Similarly every time in circulation when tested electricity
When magnetic reversal valve 5 changes to retrogressing gear, the transmission oil with pressure will be flowed out simultaneously by being tested the port of export F of solenoid directional control valve 5
Pressure transmission is connected to first pressure switch 6.1；Reverse drive gear digit counter 7.1 can also be acted accordingly.Final ratio
Counting compared with total counter 7.3, forward counter 7.2 and reverse drive gear digit counter 7.1 can just detect tested electromagnetism
The unfailing performance of reversal valve 5.
As shown in Fig. 2 time relay group 8 is formed in parallel by very first time relay J1 and the second time relay J2,
The time relay group 8 connects the promising second source 10 that it provides working power.Specially：In very first time relay J1
For it resets when W1 and W2 ends connect, for it resets when W3 and W4 ends connect in the second time relay J2.First electricity in Fig. 2
Source 9 is solenoid directional control valve working power, and second source 10 is the working power of time relay group 8.Very first time relay J1
In M, N contact be connected with two coils of solenoid directional control valve 5 respectively.
During on-test, very first time relay J1 is in reset state, and its T is communicated with M ends, T1 is communicated with M2 ends, then
The electric current of the first power supply 9 will be powered by its M end to a coil M1 end of solenoid directional control valve, simultaneously because T1 ends and M2 ends
It is also what is communicated；Be connected with the W3 ends of the second time relay J2 due to M2 ends, the W4 ends of T1 ends and the second time relay J2
It is connected, so the second time relay J2 is in reset state.Now, M3 is communicated with T2 ends, M4 is communicated with T3 ends.By first
After the time that time relay J1 is set, T ends and N-terminal are communicated in very first time relay J1, while T1 and N2 ends communicate.And
T is communicated with N-terminal will be so that the operating current of solenoid directional control valve enters solenoid directional control valve by coil N1 ends and total counter 7.3
5 another coil M1 ends, now solenoid directional control valve 5 will carry out switch operation, while total counter 7.3 increases once counting
Number.Result in the second time relay J2 and enter working condition because now T1 is communicated with N2 ends, now the second time relay
M4 is communicated with T3 ends in device J2, M3 is communicated with T2 ends.After the time that the second time relay J2 is set, N4 and T3 ends phase
N3 is communicated with T2 ends while logical, because N3 is communicated with W1 ends, T2 with W2 ends, so now in the second time relay J2
In the presence of cause very first time relay J1 to reset, experiment will again occur in very first time relay J1 after resetting initial
When operating mode, that is, T communicates with M ends, T1 with M2 ends, and causes the second time relay J2 to reset.A now experiment is followed
Ring terminates and enters next circulation.
When the equal no power of two coil-ends M1, N1 of solenoid directional control valve 5, solenoid directional control valve is neutral gear.
Above example is not limited only to protection domain of the present utility model, all based on basic thought of the present utility model
And modify or change belong to protection domain of the present utility model.
Claims (4)
1. a kind of reliability test of solenoid directional control valve, including solenoid directional control valve（5）, it is characterised in that：The electromagnetism is changed
To valve（5）Oil inlet end pass through oil pump（3）With fuel tank（1）Connection, solenoid directional control valve（5）Two ports of export respectively pass through pressure
Switch is connected with counter；Solenoid directional control valve（5）Two coil-ends between connect a time relay group（8）, the electromagnetism changes
To valve（5）With time relay group（8）Between connect a total counter（7.3）；The time relay group（8）With the first electricity
Source（9）It is connected as solenoid directional control valve（5）Working power, the fuel tank are provided（1）Inside it is provided with heater（2）.
2. the reliability test of a kind of solenoid directional control valve according to claim 1, it is characterised in that：The electromagnetism is changed
To valve（5）Oil revolving end and fuel tank（1）Connection.
3. the reliability test of a kind of solenoid directional control valve according to claim 1, it is characterised in that：The oil pump
（3）And solenoid directional control valve（5）Between be provided with and fuel tank（1）The overflow valve of connection（4）.
4. the reliability test of a kind of solenoid directional control valve according to claim 1, it is characterised in that：The time after
Electrical equipment group（8）By very first time relay（J1）With second time relay（J2）It is formed in parallel, the time relay group（8）
The promising second source that it provides working power of connection（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621222495.3U CN206221422U (en) | 2016-11-14 | 2016-11-14 | A kind of reliability test of solenoid directional control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621222495.3U CN206221422U (en) | 2016-11-14 | 2016-11-14 | A kind of reliability test of solenoid directional control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206221422U true CN206221422U (en) | 2017-06-06 |
Family
ID=58793416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621222495.3U Active CN206221422U (en) | 2016-11-14 | 2016-11-14 | A kind of reliability test of solenoid directional control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206221422U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649027A (en) * | 2019-07-02 | 2020-09-11 | 涌镇液压机械（上海）有限公司 | Device and method for detecting jamming of electromagnetic directional valve |
-
2016
- 2016-11-14 CN CN201621222495.3U patent/CN206221422U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649027A (en) * | 2019-07-02 | 2020-09-11 | 涌镇液压机械（上海）有限公司 | Device and method for detecting jamming of electromagnetic directional valve |
| CN111649027B (en) * | 2019-07-02 | 2022-03-04 | 涌镇液压机械（上海）有限公司 | Device and method for detecting jamming of electromagnetic directional valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203614812U (en) | Control valve capable of simultaneously controlling multiple fluid flow passages | |
| CN104196777A (en) | Programmable integrated control system capable of controlling inlet and outlet oil ways independently | |
| CN101260938A (en) | Automobile electric control mechanical type automatic speed variator hydraulic system and its control method | |
| CN104163385A (en) | Hydraulic control system for winch | |
| RU2737073C1 (en) | Multistage multipurpose hydraulic supercharger with controlled pressure | |
| CN206221422U (en) | A kind of reliability test of solenoid directional control valve | |
| CN102889259B (en) | Multipath valve and engineering machinery | |
| CN103591083A (en) | Hydraulic test stand for oil cylinders | |
| CN106838376A (en) | A kind of three-position electromagnetic high voltage pulse reversal valve | |
| CN204312689U (en) | The shifting control system of automatic transmission | |
| CN103511403A (en) | Hydraulic cooling system and engineering machinery with same | |
| CN103213494A (en) | Self-walking mechanical double-speed walking electro-hydraulic control system | |
| CN103354874B (en) | The method of fluid-working machine and control low pressure valve and high pressure valve | |
| CN102734241B (en) | Opened and closed hydraulic system and engineering machinery | |
| CN203412844U (en) | On-line circulation and detection device of hydraulic cylinder | |
| CN104564862A (en) | Combined pump-controlled cylinder electric hydraulic control system | |
| CN204729675U (en) | Six-way transfer valve | |
| CN104482252A (en) | Integrated reversing valve | |
| CN104481944B (en) | Depressurizing system and engineering machinery | |
| CN108317244A (en) | Double-clutch automatic gearbox and its fork controls method, apparatus | |
| CN108006015B (en) | Hydraulic circulation system for oil supply and return of dynamic test bed | |
| CN107269633B (en) | Open variable pump system integrating constant-pressure function and load-sensitive function | |
| CN202707652U (en) | Hydraulic control one-way valve reset structure | |
| CN104896139A (en) | Six-way reversing valve | |
| CN107575505B (en) | Automobile, double-clutch speed changer hydraulic control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |