CN214578010U - Mechanical explosion-proof proportional multi-way valve and valve block for coal mine - Google Patents
Mechanical explosion-proof proportional multi-way valve and valve block for coal mine Download PDFInfo
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- CN214578010U CN214578010U CN202120793343.3U CN202120793343U CN214578010U CN 214578010 U CN214578010 U CN 214578010U CN 202120793343 U CN202120793343 U CN 202120793343U CN 214578010 U CN214578010 U CN 214578010U
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Abstract
The utility model belongs to the technical field of explosion-proof proportional multi-way valves, and discloses a mechanical explosion-proof proportional multi-way valve for coal mines and a valve block, which comprises a valve block body, an oil inlet, a first main valve cavity, a second main valve cavity adapter tube, a first pressure reducing valve cavity, a second pressure reducing valve cavity, a first oil return cavity and a second oil return cavity are arranged in the valve block body, wherein the oil inlet is respectively connected with a first pressure reducing valve cavity and a second pressure reducing valve cavity through oil ducts, the first pressure reducing valve cavity is respectively connected with a first main valve cavity and a first oil return cavity through oil ducts, the second pressure reducing valve cavity is respectively connected with a second main valve cavity adapter tube and a second oil return cavity through oil ducts, the first pressure reducing valve cavity and the second pressure reducing valve cavity are communicated through oil ducts, one side surface of the valve block body is provided with two pressure reducing valve mounting holes, the arrangement positions of the two pressure reducing valve mounting holes correspond to the first pressure reducing valve cavity and the second pressure reducing valve cavity respectively.
Description
Technical Field
The utility model belongs to the technical field of explosion-proof proportion multiple unit valve, concretely relates to explosion-proof proportion multiple unit valve of machinery and valve block for coal mine.
Background
The proportional multi-way valve is often applied to engineering machinery, along with the improvement of the processing technology level, the electro-hydraulic proportional technology is widely applied to various fields, the electro-hydraulic proportional control adopted by a hydraulic system of coal mine machinery is gradually increased, and due to the existence of combustible gas in the application occasions, the proportional multi-way valve with the explosion-proof performance is required to be adopted. The coal mine equipment generally has narrow underground operation space and limited space for installing power control elements, so that the elements need to be installed compactly. Most explosion-proof proportional multi-way valves at present have an explosion-proof function added on the basis of a common proportional multi-way valve, the volume of an explosion-proof proportional electromagnet of the explosion-proof proportional multi-way valve is designed according to the position of a pressure reducing valve element on a multi-way valve body, the explosion-proof proportional electromagnet is generally large, and the explosion-proof proportional multi-way valve is inconvenient to use and manufacture.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide an explosion-proof proportion multiple unit valve of machinery and valve block for coal mine, overcome the problem that exists among the prior art.
In order to solve the technical problem, the technical scheme of the utility model is that: a valve block of a mechanical explosion-proof proportional multi-way valve for a coal mine comprises a valve block body, wherein an oil inlet, a first main valve cavity, a second main valve cavity adapter tube, a first pressure reducing valve cavity, a second pressure reducing valve cavity, a first oil return cavity and a second oil return cavity are arranged in the valve block body, wherein the oil inlet is respectively connected with a first pressure reducing valve cavity and a second pressure reducing valve cavity through oil ducts, the first pressure reducing valve cavity is respectively connected with a first main valve cavity and a first oil return cavity through oil ducts, the second pressure reducing valve cavity is respectively connected with a second main valve cavity adapter tube and a second oil return cavity through oil ducts, the first pressure reducing valve cavity and the second pressure reducing valve cavity are communicated through oil ducts, one side surface of the valve block body is provided with two pressure reducing valve mounting holes, the arrangement positions of the two pressure reducing valve mounting holes correspond to the first pressure reducing valve cavity and the second pressure reducing valve cavity respectively.
Preferably, the two pressure reducing valve mounting holes are formed in the same side face of the valve block body, and the two pressure reducing valve mounting holes are formed in the same horizontal plane.
Preferably, the first main valve cavity is arranged at the upper side position inside the valve block body, the second main valve cavity is connected with the connecting pipe and arranged at the lower side of the first main valve cavity, the oil inlet is arranged at the lower side of the connecting pipe of the second main valve cavity, the first pressure reducing valve cavity and the second pressure reducing valve cavity are arranged at the middle position inside the valve block body, the first oil return cavity and the second oil return cavity are arranged at the lower side position inside the valve block body, one end of the oil inlet, the first main valve cavity, the second main valve cavity is connected with the connecting pipe of the first oil return cavity and the second oil return cavity is connected to the left side surface of the valve block body, and the pressure reducing valve mounting hole is arranged at the right side surface of the valve block body.
Preferably, the oil inlet is connected with a first oil duct, the first oil duct is connected with a second oil duct, the second oil duct is connected with a third oil duct, the third oil duct is connected with a fourth oil duct, and the fourth oil duct is respectively connected with a first pressure reducing valve cavity and a second pressure reducing valve cavity; the first pressure reducing valve cavity is connected with a sixth oil duct and a seventh oil duct through a fifth oil duct respectively, the sixth oil duct is connected to the first main valve cavity, and the seventh oil duct is connected to the first oil return cavity; the second pressure reducing valve cavity is connected with a ninth oil duct and a tenth oil duct through an eighth oil duct respectively, the ninth oil duct is connected to the second main valve cavity adapter tube, and the tenth oil duct is connected to the second oil return cavity.
Preferably, an explosion-proof proportion multiple unit valve of machinery for coal mine, include valve body, two proportion relief pressure valves, explosion-proof electro-magnet and as above arbitrary the valve block of an explosion-proof proportion multiple unit valve of machinery for coal mine, valve block is connected to a valve body side, and two proportion relief pressure valves are installed in the relief pressure valve mounting hole of valve block another side to two proportion relief pressure valves are connected with first relief pressure valve cavity and second relief pressure valve cavity respectively, explosion-proof electro-magnet passes through the bolt fastening and is provided with a side of relief pressure valve mounting hole in the valve block.
Compared with the prior art, the utility model has the advantages of:
(1) the utility model discloses a valve block of a mechanical explosion-proof proportional multi-way valve for coal mines, which changes the installation position of a proportional pressure reducing valve on the multi-way valve, integrates an internal oil duct of the valve block, effectively changes the connection with an explosion-proof electromagnet and is convenient for replacement and maintenance;
(2) the utility model changes the installation position of the proportional pressure reducing valve into the transverse arrangement, so that the position is compact, the proportional pressure reducing valve is installed between the valve block and the explosion-proof electromagnet, the explosion-proof electromagnet with more compact volume is used to be connected with the valve block, two pressure reducing valve cavities in the valve block are communicated through oil duct integration, the control precision is high, and the adjusting performance is good;
(3) the utility model discloses multiple unit valve light in weight, small, the reliability is high, high integration, and the combination is convenient with the adjustment, can satisfy characteristics such as a plurality of actuating mechanism simultaneous workings.
Drawings
FIG. 1 is a schematic structural diagram of a valve block of the mechanical explosion-proof proportional multi-way valve for coal mines of the present invention;
FIG. 2 is a schematic view of a perspective structure of one side of a valve block of the mechanical explosion-proof proportional multi-way valve for coal mine;
FIG. 3 is a schematic view of another side perspective structure of a valve block of the mechanical explosion-proof proportional multi-way valve for coal mine of the present invention;
fig. 4, the utility model relates to a structural schematic diagram of explosion-proof proportion multiple unit valve of machinery for coal mine.
Description of reference numerals:
1. the hydraulic control valve comprises a valve block body, a first main valve cavity, a second main valve cavity, an adapter pipe, a first pressure reducing valve cavity, a second pressure reducing valve cavity, a first oil return cavity, a second oil return cavity, a valve body, a proportional pressure reducing valve, an explosion-proof electromagnet and a pressure reducing valve, wherein the valve block body is provided with a first main valve cavity, a second main valve cavity, a proportional pressure reducing valve, and an explosion-proof electromagnet;
1-1, a pressure reducing valve mounting hole;
2-1 parts of a first oil duct, 2-2 parts of a second oil duct, 2-3 parts of a third oil duct, 2-4 parts of a fourth oil duct, 2-5 parts of a fifth oil duct, 2-6 parts of a sixth oil duct, 2-7 parts of a seventh oil duct, 2-8 parts of an eighth oil duct, 2-9 parts of a ninth oil duct, 2-10 parts of a tenth oil duct.
Detailed Description
The following description of the embodiments of the present invention is provided in connection with the following embodiments:
it should be noted that the structures, ratios, sizes, etc. illustrated in the present specification are only used to cooperate with the contents disclosed in the specification for the understanding and reading of the people skilled in the art, and are not used to limit the limit conditions that the present invention can be implemented, and any modifications of the structures, changes of the ratio relationships or adjustments of the sizes should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the functions and the achievable purposes of the present invention.
Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Example 1
As shown in fig. 1-3, the utility model discloses a valve block of a mechanical explosion-proof proportional multi-way valve for coal mine, which comprises a valve block body 1, wherein an oil inlet 2, a first main valve cavity 3, a second main valve cavity adapter tube 4, a first pressure reducing valve cavity 5, a second pressure reducing valve cavity 6, a first oil return cavity 7 and a second oil return cavity 8 are arranged in the valve block body 1, wherein the oil inlet 2 is respectively connected with the first pressure reducing valve cavity 5 and the second pressure reducing valve cavity 6 through oil ducts, the first pressure reducing valve cavity 5 is respectively connected with the first main valve cavity 3 and the first oil return cavity 7 through oil ducts, the second pressure reducing valve cavity 6 is respectively connected with the second main valve cavity adapter tube 4 and the second oil return cavity 8 through oil ducts, the first pressure reducing valve cavity 5 is communicated with the second pressure reducing valve cavity 6 through oil ducts, one side surface of the valve block body 1 is provided with two pressure reducing valve mounting holes 1-1, the arrangement positions of the two pressure reducing valve mounting holes 1-1 correspond to the first pressure reducing valve cavity 5 and the second pressure reducing valve cavity 6 respectively.
Example 2
As shown in fig. 1, preferably, the two pressure reducing valve mounting holes 1-1 are disposed on the same side of the valve block body 1, and the two pressure reducing valve mounting holes 1-1 are disposed on the same horizontal plane.
Example 3
As shown in fig. 2 and 3, preferably, the first main valve cavity 3 is disposed at an upper side position inside the valve block body 1, the second main valve cavity adapter tube 4 is disposed at a lower side of the first main valve cavity 3, the oil inlet 2 is disposed at a lower side of the second main valve cavity adapter tube 4, the first pressure reducing valve cavity 5 and the second pressure reducing valve cavity 6 are disposed at an intermediate position inside the valve block body 1, the first oil return cavity 7 and the second oil return cavity 8 are disposed at a lower side position inside the valve block body 1, one end of the oil inlet 2, the first main valve cavity 3, the second main valve cavity adapter tube 4, the first oil return cavity 7 and the second oil return cavity 8 are respectively connected to a left side surface of the valve block body 1, and the pressure reducing valve mounting hole 1-1 is disposed at a right side surface of the valve block body 1.
Example 4
As shown in fig. 2 and 3, preferably, the oil inlet 2 is connected to a first oil channel 2-1, the first oil channel 2-1 is connected to a second oil channel 2-2, the second oil channel 2-2 is connected to a third oil channel 2-3, the third oil channel 2-3 is connected to a fourth oil channel 2-4, and the fourth oil channel 2-4 is respectively connected to a first pressure reducing valve cavity 5 and a second pressure reducing valve cavity 6; the first pressure reducing valve cavity 5 is respectively connected with sixth oil ducts 2-6 and seventh oil ducts 2-7 through fifth oil ducts 2-5, the sixth oil ducts 2-6 are connected to the first main valve cavity 3, and the seventh oil ducts 2-7 are connected to the first oil return cavity 7; the second pressure reducing valve cavity 6 is respectively connected with ninth oil ducts 2-9 and tenth oil ducts 2-10 through eighth oil ducts 2-8, the ninth oil ducts 2-9 are connected to the second main valve cavity adapter pipe 4, and the tenth oil ducts 2-10 are connected to the second oil return cavity 8.
Example 5
As shown in fig. 4, preferably, the mechanical explosion-proof proportional multi-way valve for the coal mine comprises a valve body 9, two proportional pressure reducing valves 10, an explosion-proof electromagnet 11 and the valve block of the mechanical explosion-proof proportional multi-way valve for the coal mine, wherein the valve block is connected to one side surface of the valve body 9, the two proportional pressure reducing valves 10 are respectively installed in pressure reducing valve installation holes 1-1 in the other side surface of the valve block, the two proportional pressure reducing valves 10 are respectively connected with a first pressure reducing valve cavity 5 and a second pressure reducing valve cavity 6, and the explosion-proof electromagnet 11 is fixed to one side surface of the valve block, which is provided with the pressure reducing valve installation holes 1-1, through bolts.
The working principle of the utility model is as follows:
the utility model discloses an explosion-proof proportional multi-way valve of machinery for coal mine, which comprises a valve body 9, two proportional pressure reducing valves 10, an explosion-proof electromagnet 11 and a valve block, wherein one side surface of the valve body 9 is connected with the valve block, the other side surface of the valve block is provided with two pressure reducing valve mounting holes 1-1, the two proportional pressure reducing valves 10 are respectively arranged in the two pressure reducing valve mounting holes 1-1, one side of the explosion-proof electromagnet 11 is provided with a connecting part corresponding to the proportional pressure reducing valves 10, and the explosion-proof electromagnet 11 passes through three bolt holes through bolts to be connected with the valve block, an oil inlet 2, a first main valve cavity 3, a second main valve cavity switching pipe 4, a first pressure reducing valve cavity 5, a second pressure reducing valve cavity 6, a first oil return cavity 7 and a second oil return cavity 8 are arranged in the valve block body 1, oil enters the first pressure reducing valve cavity 5 and the second pressure reducing valve cavity 6 through the oil inlet 2, the oil enters the first main valve cavity 3 and the second main valve cavity through the proportional pressure reducing valve 10 in the first pressure reducing valve cavity 5 and the second pressure reducing valve cavity 6 after being reduced in pressure and then respectively enters the first main valve cavity 3 and the second main valve cavity adapter pipe 4, the second main valve cavity adapter pipe 4 is connected with the second main valve cavity arranged in the valve body 9, the oil enters the first main valve cavity 3 and is used for pushing the right valve element to move, the oil enters the second main valve cavity and is used for pushing the left valve element to move, and when the oil in the first main valve cavity 3 and the second main valve cavity is enough, the oil is decompressed and refluxed through the first oil return cavity 7 and the second oil return cavity 8 respectively.
The working process is as follows:
the working state I is as follows: oil enters an oil inlet 2, enters a first pressure reducing valve cavity 5 through a first oil duct 2-1, a second oil duct 2-2, a third oil duct 2-3 and a fourth oil duct 2-4, then enters a first main valve cavity 3 through a fifth oil duct 2-5 and a sixth oil duct 2-6, and acts on the end face of the right side of a valve body 9 to push a valve core to act.
And a second working state: the oil enters the oil inlet 2, enters the second pressure reducing valve cavity 6 through the first oil duct 2-1, the second oil duct 2-2, the third oil duct 2-3 and the fourth oil duct 2-4, then enters the second main valve cavity adapter tube 4 through the eighth oil duct 2-8 and the ninth oil duct 2-9, and then enters the second main valve cavity to act on the left end face of the valve body 9 to push the valve element to move.
And a third working state: the oil enters the oil inlet 2, enters the first pressure reducing valve cavity 5 through the first oil duct 2-1, the second oil duct 2-2, the third oil duct 2-3 and the fourth oil duct 2-4, then enters the first oil return cavity 7 through the fifth oil duct 2-5 and the seventh oil duct 2-7, and is decompressed and refluxed.
And the working state is four: the oil enters the oil inlet 2, enters the second pressure reducing valve cavity 6 through the first oil duct 2-1, the second oil duct 2-2, the third oil duct 2-3 and the fourth oil duct 2-4, then enters the second oil return cavity 8 through the eighth oil duct 2-8 and the tenth oil duct 2-10, and is decompressed and refluxed.
The utility model discloses a valve block of explosion-proof proportion multiple unit valve of machinery for coal mine, this valve block have changed the mounted position of proportional pressure reducing valve on the multiple unit valve, have integrateed the inside oil duct of valve block, effectively change with the linking of explosion-proof electro-magnet, are convenient for change and maintain.
The utility model discloses changed proportion relief pressure valve mounted position, changed into transversal arrangement, made the position compact, installed the proportion relief pressure valve between valve block and explosion-proof electro-magnet, the explosion-proof electro-magnet that the application volume is compacter links up rather than the valve block, and two inside relief pressure valve cavitys of valve block pass through the integrated intercommunication of oil duct, and control accuracy is high, and regulation performance is good.
The utility model discloses multiple unit valve light in weight, small, the reliability is high, high integration, and the combination is convenient with the adjustment, can satisfy characteristics such as a plurality of actuating mechanism simultaneous workings.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.
Claims (5)
1. The utility model provides a valve block of explosion-proof proportional multi-way valve of machinery for coal mine, includes valve block body (1), its characterized in that: an oil inlet (2), a first main valve cavity (3), a second main valve cavity adapter tube (4), a first pressure reducing valve cavity (5), a second pressure reducing valve cavity (6), a first oil return cavity (7) and a second oil return cavity (8) are arranged in the valve block body (1), wherein the oil inlet (2) is respectively connected with the first pressure reducing valve cavity (5) and the second pressure reducing valve cavity (6) through oil ducts, the first pressure reducing valve cavity (5) is respectively connected with the first main valve cavity (3) and the first oil return cavity (7) through oil ducts, the second pressure reducing valve cavity (6) is respectively connected with the second main valve cavity adapter tube (4) and the second oil return cavity (8) through oil ducts, the first pressure reducing valve cavity (5) is communicated with the second pressure reducing valve cavity (6) through oil ducts, and two pressure reducing valve mounting holes (1-1) are formed in one side face of the valve block body (1), the arrangement positions of the two pressure reducing valve mounting holes (1-1) correspond to the first pressure reducing valve cavity (5) and the second pressure reducing valve cavity (6) respectively.
2. The valve block of the mechanical explosion-proof proportional multi-way valve for the coal mine according to claim 1, wherein: the two pressure reducing valve mounting holes (1-1) are formed in the same side face of the valve block body (1), and the two pressure reducing valve mounting holes (1-1) are formed in the same horizontal plane.
3. The valve block of the mechanical explosion-proof proportional multi-way valve for the coal mine according to claim 1, wherein: the hydraulic control valve is characterized in that a first main valve cavity (3) is arranged at the upper side position inside a valve block body (1), a second main valve cavity switching pipe (4) is arranged at the lower side of the first main valve cavity (3), an oil inlet (2) is arranged at the lower side of the second main valve cavity switching pipe (4), a first pressure reducing valve cavity (5) and a second pressure reducing valve cavity (6) are arranged at the middle position inside the valve block body (1), a first oil return cavity (7) and a second oil return cavity (8) are arranged at the lower side position inside the valve block body (1), one ends of the oil inlet (2), the first main valve cavity (3), the second main valve cavity switching pipe (4), the first oil return cavity (7) and the second oil return cavity (8) are respectively connected to the left side face of the valve block body (1), and a pressure reducing valve mounting hole (1-1) is arranged at the right side face of the valve block body (1).
4. The valve block of the mechanical explosion-proof proportional multi-way valve for the coal mine according to claim 1, wherein: the oil inlet (2) is connected with a first oil duct (2-1), the first oil duct (2-1) is connected with a second oil duct (2-2), the second oil duct (2-2) is connected with a third oil duct (2-3), the third oil duct (2-3) is connected with a fourth oil duct (2-4), and the fourth oil duct (2-4) is respectively connected with a first pressure reducing valve cavity (5) and a second pressure reducing valve cavity (6); the first pressure reducing valve cavity (5) is respectively connected with a sixth oil duct (2-6) and a seventh oil duct (2-7) through a fifth oil duct (2-5), the sixth oil duct (2-6) is connected with the first main valve cavity (3), and the seventh oil duct (2-7) is connected with the first oil return cavity (7); the second pressure reducing valve cavity (6) is respectively connected with ninth oil ducts (2-9) and tenth oil ducts (2-10) through eighth oil ducts (2-8), the ninth oil ducts (2-9) are connected to the second main valve cavity adapter pipe (4), and the tenth oil ducts (2-10) are connected to the second oil return cavity (8).
5. The utility model provides an explosion-proof proportional multi-way valve of machinery for coal mine which characterized in that: the mechanical explosion-proof proportional multi-way valve for the coal mine comprises a valve body (9), two proportional pressure reducing valves (10), an explosion-proof electromagnet (11) and any one of claims 1 to 4, wherein one side face of the valve body (9) is connected with the valve block, the two proportional pressure reducing valves (10) are respectively installed in pressure reducing valve installation holes (1-1) in the other side face of the valve block, the two proportional pressure reducing valves (10) are respectively connected with a first pressure reducing valve cavity (5) and a second pressure reducing valve cavity (6), and the explosion-proof electromagnet (11) is fixed on one side face, provided with the pressure reducing valve installation holes (1-1), of the valve block through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120793343.3U CN214578010U (en) | 2021-04-19 | 2021-04-19 | Mechanical explosion-proof proportional multi-way valve and valve block for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120793343.3U CN214578010U (en) | 2021-04-19 | 2021-04-19 | Mechanical explosion-proof proportional multi-way valve and valve block for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214578010U true CN214578010U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120793343.3U Active CN214578010U (en) | 2021-04-19 | 2021-04-19 | Mechanical explosion-proof proportional multi-way valve and valve block for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214578010U (en) |
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2021
- 2021-04-19 CN CN202120793343.3U patent/CN214578010U/en active Active
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