CN211779180U

CN211779180U - Integrated mining hydraulic multiple water cut-off protector

Info

Publication number: CN211779180U
Application number: CN202020264098.2U
Authority: CN
Inventors: 赵青社; 王社旭; 郭海霞; 雷宏涛
Original assignee: Shaanxi Heyang Pneumatic Tool Co ltd
Current assignee: Shaanxi Heyang Pneumatic Tool Co ltd
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-10-27
Anticipated expiration: 2030-03-05

Abstract

The utility model provides a mining hydraulic pressure multiple water break protector of integral type, valve body are provided with a plurality of main entrance that are parallel to each other, and the case separates the main entrance for water pressure room and oil pressure room, is equipped with water passageway and oil passageway between the upper and lower two-layer main entrance wantonly and makes upper and lower two-layer water pressure room and oil pressure room correspond respectively and link up, and the both ends of main entrance are provided with the end cap, be located the end cap of oil pressure room one side with be provided with compression spring between the case. The multiple water cut-off protector is compact in structure, particularly in a coal mine, an emulsion motor is used in a high-power hydraulic cutting tool, the utilization rate of an original emulsion pump station is improved, most importantly, the problem that a linkage device breaks water mechanical faults is effectively solved through a multi-stage pipeline, potential safety hazards existing in the use of the hydraulic cutting tool are eliminated, meanwhile, the integrated structure reduces the production cost, and the protector is energy-saving and environment-friendly and has good social benefits and economic benefits.

Description

Integrated mining hydraulic multiple water cut-off protector

Technical Field

The utility model belongs to the safety valve class controlling means of mine explosion-proof construction, the multiple protector that cuts off the water supply of the mining hydraulic pressure of concretely relates to integral type.

Background

Dig the working face and have the workplace of explosion-proof requirement in the mine pit, use the cutting worker to have pneumatic cutting and hydraulic pressure cutting, but all force to be equipped with cooling shower water installation cooling saw blade and eliminate the metal spark, prior art uses the manual work to spray or the pressure water control gas circuit among the air water linkage water cut-off unit opens and closes, ensure under work and the non-operating condition, the cooling sprays all operation, realize that the water supply side can start, shut down the time delay and stop water, eliminate the potential safety hazard, but the problem that exists is: 1. manual water spraying is carried out, and the mode has asynchronous phenomenon in the hydraulic cutting working process; 2. the plug valve of the linkage water supply and cut-off device is used for controlling and cutting off power, once the plug valve has mechanical failure in the using process, if the water is cut off suddenly, the cutting tool still can be in operation, and because the water is cut off at the moment, the potential safety hazard of spark generation exists; 3. the pressure of mineral oil or emulsified oil is more than ten times of the working pressure of air-water linkage, and the pressure cannot be directly used, so that a driving mode suitable for oil-water linkage is needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of existence among the prior art, the utility model provides a mining hydraulic pressure of integral type multiple protector that cuts off water supply.

The utility model discloses a realize through following technical scheme: an integrated mining hydraulic multiple water cut-off protector comprises a valve body, wherein the valve body is provided with a plurality of main channels which are parallel to each other, the left part and the right part of the main channel positioned at the top layer are respectively provided with a water inlet and an oil inlet which are communicated with the main channel, and the left part and the right part of the main channel positioned at the bottom layer are respectively provided with a water outlet and an oil outlet which are communicated with the main channel; the middle part of the main channel is provided with a narrow channel with the diameter smaller than the inner diameter of the main channel, a valve core is arranged in the narrow channel and divides the main channel into a water pressure chamber and an oil pressure chamber, the length of the valve core is larger than the distance between an inlet of the oil channel and the oil pressure chamber, the diameter of the valve core in the narrow channel is matched with the inner diameter of the narrow channel, the valve core in the narrow channel is also provided with a small diameter with the diameter smaller than the inner diameter of the narrow channel, and an oil pressure communicating chamber is formed between the small diameter and the narrow channel; a water channel and an oil channel are arranged between any upper layer of main channel and any lower layer of main channel, so that the hydraulic pressure chambers and the oil pressure chambers of the upper layer and the lower layer are respectively and correspondingly communicated, the water channel comprises a water channel inlet and a water channel outlet, the water channel inlet is positioned in the hydraulic pressure chamber of the upper layer, the water channel outlet is positioned in the hydraulic pressure chamber of the lower layer, the oil channel comprises an oil channel inlet and an oil channel outlet, the oil channel inlet is positioned in the upper layer of narrow channel, and the oil channel outlet is positioned in the oil pressure chamber of the lower layer; plugs are arranged at two ends of the main channel, and a compression spring is arranged between the plug positioned on one side of the oil pressure chamber and the valve core.

In the scheme, the length of the valve core is greater than that of the narrow channel, a water pressure sealing plug is fixedly arranged at the left end of the valve core, and the diameter of the water pressure sealing plug is matched with that of the water pressure chamber; the right end of the valve core is fixedly provided with an oil pressure sealing plug, and the diameter of the oil pressure sealing plug is larger than that of the narrow passage and smaller than that of the oil pressure chamber.

In the scheme, O-shaped sealing rings are sleeved on the hydraulic sealing plug and the oil pressure sealing plug, a plurality of grooves are formed in the cylindrical surface of the valve core in the narrow channel, and the O-shaped sealing rings are installed in the grooves.

In the above scheme, the hydraulic chamber is provided with a ventilating plug screw for exhausting.

In the above scheme, the water inlet, the oil inlet, the water outlet and the oil outlet are all provided with quick change connectors.

In the scheme, the right end face of the valve core is provided with the spring fixing hole, the left end face of the plug positioned on one side of the oil pressure chamber is provided with the spring fixing hole, and the two fixing holes are internally provided with the compression springs.

In the above scheme, the main channel is at least two layers.

The utility model discloses mining hydraulic pressure multiple water break protector of integral type compares with prior art, and its beneficial effect is: this multiple water break protector compact structure, high durability and convenient use, especially in the pit of the colliery, high-power hydraulic cutting instrument uses the emulsion motor, power comes from working face emulsion pump station, the emulsion pipeline that has laid now of usable, the utilization ratio of original emulsion pump station has been improved, special stopper valve structure is applicable to the big pressure operational environment such as mineral oil or emulsion oil, the most important multistage pipeline has solved linkage device effectively and has interrupted water machinery trouble, the potential safety hazard that exists in the hydraulic cutting instrument use has been eliminated, the structure of integral type has reduced manufacturing cost simultaneously, energy saving and environmental protection, good social and economic benefits have.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the assembly structure of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a cross-sectional view of B-B in fig. 2.

In the figure: 1. the hydraulic valve comprises a valve body, a water inlet, a main channel, a narrow channel, a small channel, an oil inlet, a hydraulic chamber, a hydraulic sealing plug, a sealing ring, an O-shaped seal ring, a valve core, a hydraulic communication chamber, an oil pressure sealing plug, an oil pressure chamber, a compression spring, a plug, an oil channel inlet, an oil channel outlet, a water channel inlet, a water channel outlet, a quick-change connector, a ventilation plug, a valve core spring fixing hole and a plug spring fixing hole, wherein the water channel outlet is 9, the valve core is 10, the oil pressure communication chamber is 11, the small.

Detailed Description

The embodiment of the integrated hydraulic multiple water cut-off protector for mining of the present invention is described below with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of the present invention. FIG. 2 is a schematic view of the assembly structure of the present invention; FIG. 3 is a cross-sectional view A-A of FIG. 2; fig. 4 is a cross-sectional view of B-B in fig. 2. In the figure, the water cut-off protector comprises a valve body 1, wherein the valve body 1 is provided with two layers of main channels 3 which are parallel to each other, the left part and the right part of the main channel 3 positioned at the top layer are respectively provided with a water inlet 2 and an oil inlet 5 which are communicated with the main channel 3, and the left part and the right part of the main channel 3 positioned at the bottom layer are respectively provided with a water outlet 23 and an oil outlet 22 which are communicated with the main channel 3; the middle part of the main channel 3 is provided with a narrow channel 4 with the diameter smaller than the inner diameter of the main channel 3, a valve core 9 is arranged in the narrow channel 4, the valve core 9 divides the main channel 3 into a water pressure chamber 6 and an oil pressure chamber 13, the diameter of the valve core 9 in the narrow channel 4 is matched with the inner diameter of the narrow channel 4, the valve core 9 in the narrow channel 4 is also provided with a small diameter 11 with the diameter smaller than the inner diameter of the narrow channel 9, and an oil pressure communicating chamber 10 is formed between the small diameter 11 and the narrow channel 4; a water channel 20 and an oil channel 17 are arranged between the upper layer and the lower layer of the main channel 3, so that the hydraulic pressure chambers 6 and the oil pressure chambers 13 of the upper layer and the lower layer are respectively and correspondingly communicated, the water channel 10 comprises a water channel inlet 21 and a water channel outlet 19, the water channel inlet 21 is positioned in the hydraulic pressure chamber 6 of the upper layer, the water channel outlet 19 is positioned in the hydraulic pressure chamber 6 of the lower layer, the oil channel 17 comprises an oil channel inlet 16 and an oil channel outlet 18, the oil channel inlet 16 is positioned in the upper layer of the narrow channel 4, and the oil channel outlet 18 is positioned in the oil pressure chamber 13 of; plugs 15 are provided at both ends of the main passage 3, and a compression spring 14 is provided between the plug 15 and the valve element 9 on the side of the oil pressure chamber 13. The length of the valve core 9 is greater than that of the narrow passage 4, a water pressure sealing plug 7 is fixedly arranged at the left end of the valve core 9, and the diameter of the water pressure sealing plug 7 is matched with that of the water pressure chamber 6; the right end of the valve core 9 is fixedly provided with an oil pressure sealing plug 12, and the diameter of the oil pressure sealing plug 12 is larger than that of the narrow passage 4 and smaller than that of the oil pressure chamber 13. The hydraulic sealing plug 7 and the hydraulic sealing plug 12 are sleeved with O-shaped sealing rings 8, a plurality of grooves are formed in the cylindrical surface of the valve core 9 in the narrow channel 4, and the O-shaped sealing rings 8 are installed in the grooves. The hydraulic chamber 6 is provided with a gas-permeable plug screw 25 for venting gas. The water inlet 2, the oil inlet 5, the water outlet 23 and the oil outlet 22 are all provided with quick change connectors 24. The right end face of the valve core 9 is provided with a valve core spring fixing hole 26, the left end face of the plug positioned on one side of the oil pressure chamber is provided with a plug spring fixing hole 27, and the two fixing holes are internally provided with compression springs 14.

When in use, referring to fig. 1 and 2, pressure water enters the main channel 3 in the valve body 2 from the water inlet 2, acts in the water pressure chamber 6 and generates a rightward hydraulic pressure; the emulsion enters the main channel 3 in the valve body 2 from the oil inlet 5 and is isolated in the oil pressure chamber 13 by the oil pressure sealing plug 12. When the hydraulic chamber 6 is conveyed downwards through the water channel 20 to be filled with pressure water, as the diameter of the hydraulic sealing plug 7 is larger than that of the oil pressure sealing plug 12, the hydraulic sealing plug 7 can push the valve core 9 and gradually apply force to the compression spring 14 under the action of hydraulic pressure, at the moment, as shown in fig. 4, the hydraulic sealing plug 7 is positioned on the right side of the water outlet 23, and the pressure water flows out of the water outlet 15 and is sprayed to an operation part through a spray pipe so as to prevent the generation of sparks. Gradually increasing the water pressure, as shown in fig. 3, pushing the oil pressure sealing plug 12 to move right by the valve core 9, and communicating the oil pressure chamber 13 with the oil channel inlet 16 through the oil pressure communicating chamber 10, as shown in fig. 2, and then allowing the emulsion to enter the lower oil pressure chamber 13 from the oil channel 17; as shown in fig. 4, the spool 9 in the lower stage communicates the oil pressure chamber 13 with the oil outlet 22 through the oil pressure communication chamber 10 in the same operation manner again, and the emulsion is delivered from the oil outlet pipe to the hydraulic motor to provide the operation power.

When the valve core on the upper layer has mechanical failure, the compression spring 4 loses the adjusting function, the oil pressure sealing plug 12 is clamped at the rightmost end position of the oil pressure chamber 12, if the water inlet 2 stops supplying water, since the oil passage inlet 16 is not closed, the emulsion can still be transported from the oil passage 17 to the lower layer, at which time the hydraulic pressure chamber 6 located at the lower layer also loses water pressure, but the compression spring 14 can push the oil pressure sealing plug 12, so that the oil pressure sealing plug 12 moves leftwards to cut off the oil supply of the oil pressure communication chamber 10 to the oil outlet 22, the hydraulic motor stops working, thus realizing the control of the opening and closing of the oil path of the emulsion by the pressure water by utilizing the double water-cut linkage, through the linkage of hydraulic oil or emulsion and shower water, the oil circuit can be opened only when pressure water exists, the hydraulic motor can be started to work, mechanical faults of any one stage are guaranteed, if water is cut off, the oil circuit is disconnected, and the motor stops running or cannot be started.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make various changes or modifications equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, changes and modifications of the above embodiments by the technical spirit of the present invention are within the scope of the present invention.

Claims

1. Mining hydraulic pressure of integral type multiple protector that cuts off water, its characterized in that: the valve body is provided with a plurality of mutually parallel main channels, the left part and the right part of the main channel positioned at the top layer are respectively provided with a water inlet and an oil inlet which are communicated with the main channel, and the left part and the right part of the main channel positioned at the bottom layer are respectively provided with a water outlet and an oil outlet which are communicated with the main channel; the middle part of the main channel is provided with a narrow channel with the diameter smaller than the inner diameter of the main channel, a valve core is arranged in the narrow channel and divides the main channel into a water pressure chamber and an oil pressure chamber, the length of the valve core is larger than the distance between an inlet of the oil channel and the oil pressure chamber, the diameter of the valve core in the narrow channel is matched with the inner diameter of the narrow channel, the valve core in the narrow channel is also provided with a small diameter with the diameter smaller than the inner diameter of the narrow channel, and an oil pressure communicating chamber is formed between the small diameter and the narrow channel; a water channel and an oil channel are arranged between any upper layer of main channel and any lower layer of main channel, so that the hydraulic pressure chambers and the oil pressure chambers of the upper layer and the lower layer are respectively and correspondingly communicated, the water channel comprises a water channel inlet and a water channel outlet, the water channel inlet is positioned in the hydraulic pressure chamber of the upper layer, the water channel outlet is positioned in the hydraulic pressure chamber of the lower layer, the oil channel comprises an oil channel inlet and an oil channel outlet, the oil channel inlet is positioned in the upper layer of narrow channel, and the oil channel outlet is positioned in the oil pressure chamber of the lower layer; plugs are arranged at two ends of the main channel, and a compression spring is arranged between the plug positioned on one side of the oil pressure chamber and the valve core.

2. The integrated mining hydraulic multiple water break protector according to claim 1, characterized in that: the length of the valve core is greater than that of the narrow channel, a water pressure sealing plug is fixedly arranged at the left end of the valve core, and the diameter of the water pressure sealing plug is matched with that of the water pressure chamber; the right end of the valve core is fixedly provided with an oil pressure sealing plug, and the diameter of the oil pressure sealing plug is larger than that of the narrow passage and smaller than that of the oil pressure chamber.

3. The integrated mining hydraulic multiple water break protector according to claim 2, characterized in that: o-shaped sealing rings are sleeved on the hydraulic sealing plug and the oil pressure sealing plug, a plurality of grooves are formed in the cylindrical surface of the valve core in the narrow channel, and the O-shaped sealing rings are installed in the grooves.

4. The integrated mining hydraulic multiple water break protector according to claim 1, characterized in that: the hydraulic chamber is provided with a ventilating plug screw for exhausting.

5. The integrated mining hydraulic multiple water break protector according to claim 1, characterized in that: and the water inlet, the oil inlet, the water outlet and the oil outlet are all provided with quick change connectors.

6. The integrated mining hydraulic multiple water break protector according to claim 1, characterized in that: the right end face of the valve core is provided with a spring fixing hole, the left end face of the plug positioned on one side of the oil pressure chamber is provided with a spring fixing hole, and compression springs are arranged in the two fixing holes.

7. The integrated mining hydraulic multiple water break protector according to claim 1, characterized in that: the main channel is at least two layers.