CN209524077U - A kind of first three latter electro-hydraulic manipulation valve of loading machine gearbox - Google Patents
A kind of first three latter electro-hydraulic manipulation valve of loading machine gearbox Download PDFInfo
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- CN209524077U CN209524077U CN201920249718.2U CN201920249718U CN209524077U CN 209524077 U CN209524077 U CN 209524077U CN 201920249718 U CN201920249718 U CN 201920249718U CN 209524077 U CN209524077 U CN 209524077U
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- loading machine
- solenoid
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Abstract
The application belongs to technical field of hydraulic pressure, a kind of first three latter electro-hydraulic manipulation valve of loading machine gearbox is provided, including valve body, the side of valve body is equipped with the buffer gear that spool and spring form, the front and back side of valve body is respectively equipped with solenoid valve, buffer gear, safety valve, magnetic valve control part and pressure interface part, if the front and rear sides of valve body are respectively equipped with two groups of solenoid valves, one end of buffer gear connects oil inlet, valve inner is equipped with oil circuit corresponding with several groups actuator port, actuator port is located at the rear side of valve body, and solenoid valve controls with actuator port connect respectively；Torque-converters oil-feed port and oil return opening are additionally provided on the valve body of oil inlet；Solenoid valve is separately connected corresponding electric control handle.The application can satisfy the cooperation between each gear, can effective and transmission mechanisms perfect cooperation, raising travel speed, efficiency are easy to operate, simple and reliable.
Description
Technical field
The utility model belongs to technical field of hydraulic pressure, and in particular to a kind of small-sized loader gear box speed change operating valve.
Background technique
Country's small-sized loader gear box clutch is mostly II type after preceding II at present, and direction of advance is divided into 2 gears, low
Speed and high speed.Mostly direction of advance when loading machine works, II grade of speed per hour of advancing is only between 30km ~ 40km, long-distance transportation
Shi Sudu is slow, leads to waste of time, inefficient.
Summary of the invention
The purpose of this utility model is to solve existing loading machine gearbox gear control problem, by II type after original preceding II
I type after being changed to preceding III, maneuverability are electrichydraulic control, operating voltage 24V, operating oil pressure 1.5Mpa.
To achieve the goals above, the utility model provides a kind of electro-hydraulic manipulation valve of loading machine gearbox, a kind of loading machine
First three latter electro-hydraulic manipulation valve of gearbox, including valve body, the side of valve body are equipped with the buffer gear that spool and spring form, valve body
Front and back side be respectively equipped with solenoid valve, buffer gear, safety valve, magnetic valve control part and pressure interface part, the valve body
If front and rear sides be respectively equipped with two groups of solenoid valves, one end of the buffer gear connects oil inlet, if valve inner be equipped with
The corresponding oil circuit of dry group actuator port, the actuator port are located at the rear side of valve body, the solenoid valve respectively with actuator port control
System connection；Torque-converters oil-feed port and oil return opening are additionally provided on the valve body of the oil inlet；Solenoid valve is separately connected corresponding automatically controlled
Handle.
Preferably, the control connection forward respectively of 3 groups in the actuator port and corresponding solenoid valve, another group of control
System connection retreats gear.
Preferably, the other side of the buffer gear is equipped with safety valve.
Preferably, the solenoid valve is 24V two-bit triplet plugged electric magnet valve.
The utility model is beneficial in that, can satisfy the cooperation between each gear, being capable of effective and gearbox
Mechanism perfect cooperation improves travel speed, efficiency, easy to operate, simple and reliable.
Detailed description of the invention
Fig. 1 the utility model front interface structure schematic diagram；
Fig. 2 the utility model back side mounting-positioning holes structural schematic diagram；
1. valve body in figure, 2. solenoid valves, 3. top actuator ports, 4. safety valves, 5. oil return openings, 6. torque-converters oil-feed ports,
7.T oil return opening, 8. oil inlets, 9. lower part actuator ports, 10. fixation holes, 11 pressure taps.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As depicted in figs. 1 and 2, the application provides a kind of first three latter electro-hydraulic manipulation valve of loading machine gearbox, the manipulation valve
Including valve body, four solenoid valves, buffer gear, principal pressure regulating mechanism, safety valve 4, magnetic valve control part and pressure interface
Part, if solenoid valve uses two-bit triplet electromagnetic cartridge valve, its designing points to be respectively equipped with two groups of electricity for the front and rear sides of valve body
Magnet valve 2, solenoid valve connects top actuator port 3 and lower part actuator port 9, and buffer gear is located at the side of valve body, buffer
The lower end of structure connects oil inlet 8, and oil inlet passes through oil circuit respectively and connect with actuator port, and valve inner is equipped with to work with several groups
The corresponding oil circuit of hydraulic fluid port, actuator port are located at the rear side of valve body, are realized by the opening and closing of solenoid valve and control connection to actuator port；
Pressure interface part further includes being additionally provided with torque-converters oil-feed port 6, oil return opening 5 and T oil return opening 7 on the valve body of oil inlet.Electricity
Magnet valve is separately connected corresponding electric control handle.
Workflow includes: that 1. buffer gears solve the impact from gearbox oil liquid in the application, smoothly impact
Release, hydraulic oil enter in the buffer gear of spool and spring composition slowly, hydraulic oil are adjusted to needed for machine operation
Pressure.
2. electrically-controlled valve is equipped with advance I, II, III grade, retrogressing 5 I grade, neutral gear gears.3 two-bit triplet electromagnetic valve core difference
I, II, III grade, 1 solenoid valve control of control advance retreats I gear, and all solenoid valves are neutral gear in obstructed electricity condition.For protection
When clutch, drive shift and reverse drive gear solenoid valve do not contact, there is interlock function, all solenoid valves do not work, corresponding mating automatically controlled
Handle completes the above gear switch.
3. relief valve device, when oil cleanliness is not up to standard encounters card valve phenomenon, the discharge of safety valve oil liquid is effectively cut
Oil-break liquid enters valve body, so that protection valve body is played, Electromagnetic Control part.
By above structure, pressure oil enters by oil inlet when the application works, subsequently into buffer area adjustment of oil pressure
For 1.5Mpa, the work of Electromagnetic Control part changes the flow direction of pressure oil, so that the advance I, II, III for controlling loading machine is kept off, retreats
Gear, neutral gear.
In the description of the present invention, it should be noted that the orientation of instructions such as term " end ", " the other end " or
Positional relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when the side usually put
Position or positional relationship, are merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning
Or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (4)
1. the side of a kind of first three latter electro-hydraulic manipulation valve of loading machine gearbox, including valve body, valve body is equipped with spool and groups of springs
At buffer gear, the front and back side of valve body is respectively equipped with solenoid valve, buffer gear, safety valve, magnetic valve control part and pressure
Interface section, which is characterized in that if the front and rear sides of the valve body are respectively equipped with two groups of solenoid valves, one end of the buffer gear
Oil inlet is connected, valve inner is equipped with oil circuit corresponding with several groups actuator port, and the actuator port is located at the rear side of valve body,
The solenoid valve controls with actuator port connect respectively；Torque-converters oil-feed port and oil return are additionally provided on the valve body of the oil inlet
Mouthful；Solenoid valve is separately connected corresponding electric control handle.
2. first three latter electro-hydraulic manipulation valve of loading machine gearbox according to claim 1, which is characterized in that the working oil
Control connection forward, another group of control connection retreat gear to 3 groups in mouth and corresponding solenoid valve respectively.
3. first three latter electro-hydraulic manipulation valve of loading machine gearbox according to claim 1, which is characterized in that the buffer
The other side of structure is equipped with safety valve.
4. first three latter electro-hydraulic manipulation valve of loading machine gearbox according to claim 1, which is characterized in that the solenoid valve
For 24V two-bit triplet plugged electric magnet valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920249718.2U CN209524077U (en) | 2019-02-28 | 2019-02-28 | A kind of first three latter electro-hydraulic manipulation valve of loading machine gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920249718.2U CN209524077U (en) | 2019-02-28 | 2019-02-28 | A kind of first three latter electro-hydraulic manipulation valve of loading machine gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209524077U true CN209524077U (en) | 2019-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920249718.2U Active CN209524077U (en) | 2019-02-28 | 2019-02-28 | A kind of first three latter electro-hydraulic manipulation valve of loading machine gearbox |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737201A (en) * | 2019-02-28 | 2019-05-10 | 山东郯工液压科技有限公司 | A kind of first three latter electro-hydraulic manipulation valve of loading machine gearbox |
-
2019
- 2019-02-28 CN CN201920249718.2U patent/CN209524077U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737201A (en) * | 2019-02-28 | 2019-05-10 | 山东郯工液压科技有限公司 | A kind of first three latter electro-hydraulic manipulation valve of loading machine gearbox |
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