CN212838666U

CN212838666U - Pilot valve group

Info

Publication number: CN212838666U
Application number: CN202021246197.4U
Authority: CN
Inventors: 时少雷; 王世东; 牛肇
Original assignee: Shandong Lingong Construction Machinery Co Ltd
Current assignee: Shandong Lingong Construction Machinery Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-03-30
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses a pilot valve group, it belongs to engineering machine tool technical field. The electromagnetic valve overcomes the defects that the traditional electromagnetic valve is installed on a main control valve in the prior art, the design, manufacture and later-stage maintenance cost are high, and the general production of the main control valve is poor. The main structure of the hydraulic control valve comprises a valve block, wherein a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve … … nth electromagnetic valve are installed on the valve block, An oil port Pa, An oil port Pb, An oil port T1, An oil port T2, An oil port T3 … …, An oil port A1, An oil port A2 and An oil port A3 … … oil port An are arranged on the valve block, and the oil port Pa and the oil port Pb are communicated with the oil port P1 of the first electromagnetic valve, the oil port P2 of the second electromagnetic valve and the oil port P3 … … nth electromagnetic valve simultaneously in the valve block. The utility model discloses mainly used engineering machine tool is last.

Description

Pilot valve group

The technical field is as follows:

the utility model belongs to the technical field of engineering machine tool, specifically speaking especially relates to a guide's valves.

Background art:

along with the standardization of domestic engineering such as mines, capital construction and the like, the target market of the engineering machinery is subdivided more and more, the use working condition is more and more complex, the construction range is wider and wider, the implementation period is shorter and shorter, the working time of the whole machine is longer and longer, the operation intensity of a driver is higher and higher, and the engineering machinery such as electric control, remote control and the like is gradually pushed to the market in combination with the current national requirements on energy conservation and emission reduction.

In the prior art, an electromagnetic valve is generally designed again and installed on an end cover of a main control valve, so that the design, manufacture and later-stage maintenance cost is high, and the universal production of the main control valve is not facilitated.

The invention content is as follows:

the to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a guide's valves, its overall arrangement is compact, can install and fix arbitrary suitable position between engineering machine tool guide handle, foot valve and the main control valve, through electrical control, can realize functions such as automatically controlled, remote control, can remain original guide handle hydraulic control system under the obstructed electric condition simultaneously.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

the pilot valve group comprises a valve block, wherein a first electromagnetic valve, a second electromagnetic valve and An n-th electromagnetic valve … … are mounted on the valve block, An oil port Pa, An oil port Pb, An oil port T1, An oil port T2, An oil port T3 … …, An oil port A1, An oil port A2 and An oil port A3 … … are arranged on the valve block, the oil port Pa and the oil port Pb are communicated with the inside of the valve block and are simultaneously communicated with An oil port P1 of the first electromagnetic valve, An oil port P2 of the second electromagnetic valve and An oil port P3 … … of the third electromagnetic valve, and the oil port Pn of the n-th electromagnetic valve, wherein n is An integer greater than or equal to 4.

Preferably, the oil port Pa or Pb is connected to a pilot oil source.

Preferably, the oil port a1, the oil port a2 and the oil port A3 … … are respectively connected with a pilot oil port of the main control valve.

Preferably, the oil port T1, the oil port T2 and the oil port T3 … … are connected to a pilot handle or a foot valve, respectively.

Preferably, the valve block is fixedly installed on a pilot handle or a foot valve or a main control valve.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has compact layout, can be installed and fixed at any suitable position between the pilot handle of the engineering machinery, the foot valve and the main control valve, can realize the functions of electric control, remote control and the like through electric control, and can keep the original pilot handle hydraulic control system under the condition of no electricity;

2. the number of the oil ports on the valve block can be increased or decreased according to the actual control number, and meanwhile, the valve block can be lengthened or shortened in the length direction according to the number of the oil ports during machining;

3. the utility model discloses do not change any structure of engineering machine tool master control valve, through increasing the utility model discloses just can realize functions such as automatically controlled, remote control with automatically controlled module.

Description of the drawings:

fig. 1 is a front view of the present invention;

fig. 2 is a left side view of the present invention;

fig. 3 is a rear view of the present invention;

fig. 4 is a right side view of the present invention;

fig. 5 is a top view of the present invention;

FIG. 6 is an isometric view of the present invention;

FIG. 7 is a cross-sectional view A-A of FIG. 4;

FIG. 8 is a cross-sectional view of B-B of FIG. 7 (T in communication with A);

FIG. 9 is a cross-sectional view of B-B of FIG. 7 (P in communication with A);

FIG. 10 is a cross-sectional view taken along line D-D of FIG. 1;

fig. 11 is a hydraulic schematic diagram of the present invention.

In the figure: 1. a first solenoid valve; 2. a second solenoid valve; 3. a third electromagnetic valve; 4. a fourth solenoid valve; 5. a fifth solenoid valve; 6. a sixth electromagnetic valve; 7. a seventh electromagnetic valve; 8. an eighth solenoid valve; 9. a ninth electromagnetic valve; 10. a tenth solenoid valve; 11. an eleventh electromagnetic valve; 12. a twelfth electromagnetic valve; 13. a thirteenth electromagnetic valve; 14. a valve block; 15. a master control valve; 16. a pilot handle; 17. a foot valve.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Example 1:

this embodiment will be described by taking n equal to 13 as an example.

As shown in fig. 1-6 and 11, a pilot valve group includes a valve block 14, a first solenoid valve 1, a second solenoid valve 2, a third solenoid valve 3, a fourth solenoid valve 4, a fifth solenoid valve 5, a sixth solenoid valve 6, a seventh solenoid valve 7, an eighth solenoid valve 8, a ninth solenoid valve 9, a tenth solenoid valve 10, an eleventh solenoid valve 11, a twelfth solenoid valve 12 and a thirteenth solenoid valve 13 are mounted on the valve block 14, oil ports Pa and Pb are disposed on both side end surfaces of the valve block 14, oil ports T1, oil ports T2, oil ports T3, oil ports T4, oil ports T5, oil ports T6, oil ports T7, oil ports T8, oil ports T9, oil ports T10, T11, oil ports T12, T13, oil ports a1, oil ports a2, oil ports A3, oil ports a4, oil ports a2, oil ports 6, oil ports a7, oil ports A8, oil ports a 867, oil ports a 87458 a, 11 a, and 11 a of the oil ports a11 and 13 are disposed, An oil port A13; as shown in fig. 10, the port Pa and the port Pb communicate with the inside of the valve block 14, and simultaneously communicate with the port P1 of the first solenoid valve 1, the port P2 of the second solenoid valve 2, and the port P3 … … of the third solenoid valve 3, and the port P13 of the thirteenth solenoid valve 13.

Example 2:

a pilot valve group is characterized in that an oil port Pa or an oil port Pb is connected with a pilot oil source of an engineering mechanical system, so that pilot pressure is provided for an oil port A1, an oil port A2, an oil port A3, an oil port A4, an oil port A5, an oil port A6, an oil port A7, an oil port A8, an oil port A9, an oil port A10, an oil port A11, an oil port A12 and an oil port A13 when a first electromagnetic valve 1, a second electromagnetic valve 2, a third electromagnetic valve 3, a fourth electromagnetic valve 4, a fifth electromagnetic valve 5, a sixth electromagnetic valve 6, a seventh electromagnetic valve 7, an eighth electromagnetic valve 8, a ninth electromagnetic valve 9, a tenth electromagnetic valve 10, an eleventh electromagnetic valve 11, a twelfth electromagnetic valve 12 or a thirteenth electromagnetic valve 13 acts.

The oil port A1, the oil port A2, the oil port A3, the oil port A4, the oil port A5, the oil port A6, the oil port A7, the oil port A8, the oil port A9, the oil port A10, the oil port A11, the oil port A12 and the oil port A13 are respectively connected with a pilot oil port of the engineering machine main control valve 15.

The oil port T1, the oil port T2, the oil port T3, the oil port T4, the oil port T5, the oil port T6, the oil port T7, the oil port T8, the oil port T9, the oil port T10, the oil port T11, the oil port T12 and the oil port T13 are respectively connected with the engineering machinery pilot handle 16 and/or the foot valve 17. The valve block 14 is fixed on the pilot handle 16 or the foot valve 17 or the main control valve 15. The other portions are the same as in example 1.

The utility model discloses a theory of operation does:

as shown in fig. 8, under the condition that the first solenoid valve 1, the second solenoid valve 2, the third solenoid valve 3, the fourth solenoid valve 4, the fifth solenoid valve 5, the sixth solenoid valve 6, the seventh solenoid valve 7, the eighth solenoid valve 8, the ninth solenoid valve 9, the tenth solenoid valve 10, the eleventh solenoid valve 11, the twelfth solenoid valve 12 and the thirteenth solenoid valve 13 are not energized, an oil port T1 is respectively communicated with an oil port a1, an oil port T2 is respectively communicated with an oil port a2, an oil port T3 is respectively communicated with an oil port A3, an oil port T4 is respectively communicated with an oil port a9, an oil port T5 is respectively communicated with an oil port A5, an oil port T6 is respectively communicated with an oil port A6, an oil port T7 is respectively communicated with an oil port a7, an oil port T8 is respectively communicated with an oil port A8, an oil port T8 is respectively communicated with an oil port T8, an oil port T8 is respectively communicated with an oil port A8, a pilot valve handle 16 of the engineering machine, and/or a pilot-operated handle 3617, and then reaches any one or more positions of the oil ports A1-A13, and finally, the hydraulic oil reaches the pilot oil port of the main control valve 15 through any one or more positions of the oil ports A1-A13, so that the control of the main control valve 15 is realized.

As shown in fig. 9, when any one or more of the first solenoid valve 1, the second solenoid valve 2, the third solenoid valve 3, the fourth solenoid valve 4, the fifth solenoid valve 5, the sixth solenoid valve 6, the seventh solenoid valve 7, the eighth solenoid valve 8, the ninth solenoid valve 9, the tenth solenoid valve 10, the eleventh solenoid valve 11, the twelfth solenoid valve 12, and the thirteenth solenoid valve 13 is energized, the position of the solenoid valve reaches the position shown in fig. 4, and since the port Pa or the port Pb is connected to a pilot oil source of the construction machine system, oil of the pilot oil source passes through the solenoid valve or the solenoid valves and reaches the ports a1 to a13 through the ports P1 to P13, the ports a1 to a13 are communicated with pilot oil ports of the construction machine main control valve 15, and each pilot oil port controls the main control valve 15.

Through ECU control mode, can with the utility model discloses on using engineering machine tools such as excavator, loader to further realize engineering machine tools such as excavator, loader's control mode such as full automatically controlled, remote control.

The number of the oil ports can be increased or decreased, the valve block 14 can be lengthened in the length direction if the number of the oil ports is increased, and the valve block 14 can be shortened in the length direction if the number of the oil ports is decreased.

Claims

1. A pilot valve group is characterized in that: the hydraulic control valve comprises a valve block (14), wherein a first electromagnetic valve (1), a second electromagnetic valve (2) and a third electromagnetic valve (3) … … are installed on the valve block (14), An nth electromagnetic valve is arranged on the valve block (14), An oil port Pa, An oil port Pb, An oil port T1, An oil port T2, An oil port T3 … …, An oil port A1, An oil port A2 and An oil port A3 … …, the oil port Pa and the oil port Pb are communicated with the oil port P1 of the first electromagnetic valve (1), the oil port P2 of the second electromagnetic valve (2) and the oil port P3 … … of the third electromagnetic valve (3) in the valve block (14), and the oil port Pn is An integer greater than or equal to 4.

2. Pilot valve group according to claim 1, characterized in that: and the oil port Pa or the oil port Pb is connected with a pilot oil source.

3. Pilot valve group according to claim 2, characterized in that: the oil port A1, the oil port A2 and the oil port A3 … … are respectively connected with a pilot oil port of the main control valve (15).

4. Pilot valve group according to claim 3, characterized in that: the oil port T1, the oil port T2 and the oil port T3 … … are respectively connected with the pilot handle (16) and/or the foot valve (17).

5. The pilot valve group according to claim 4, wherein: the valve block (14) is arranged and fixed on a pilot handle (16) or a foot valve (17) or a main control valve (15).