CN212774289U

CN212774289U - Nozzle protection device for coal mining machine

Info

Publication number: CN212774289U
Application number: CN202021693419.7U
Authority: CN
Inventors: 刘义; 郝山林
Original assignee: Xuzhou Zhongkuang Huihong Mining Equipment Co ltd
Current assignee: Xuzhou Zhongkuang Huihong Mining Equipment Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-03-23
Anticipated expiration: 2030-08-14

Abstract

The utility model discloses a nozzle protector for coal-winning machine, include the water pipe, with water piping connection's nozzle protector and install the nozzle in nozzle protector, nozzle protector include with water pipe threaded connection and the communicating protection seat of inner chamber, arrange water pressure drive arrangement on the protection seat lateral wall and cover outside the protection seat and with protection seat fixed connection's protecting crust, the top fixedly connected with of protection seat and its communicating nozzle of inner chamber are equipped with the protection casing that articulates on the protecting crust directly over the nozzle. The utility model discloses a set up protection seat, protecting crust and protection casing for the nozzle is protected well, prevents that dust or coal cinder from blockking up the damage nozzle, does not influence the normal use of nozzle again simultaneously.

Description

Nozzle protection device for coal mining machine

Technical Field

The utility model relates to a nozzle protector for coal-winning machine belongs to mining machinery equipment technical field.

Background

The coal mining machine mainly mines a coal bed by rotatably milling a coal wall through cutting teeth arranged on a spiral drum of the coal mining machine, a large amount of dust is generated during mining, the largest source of the dust in a coal well is the dust, and a concentrated dust production area is arranged around the spiral drum of the coal mining machine. The better dust fall method is to carry out spray treatment when powder around the cutting teeth is diffused, most nozzles are cylindrical, the nozzles are exposed on the blades and fixed by using U-shaped clamps, but due to the complicated situation in mines, the nozzles are easily blocked by dust when the machine is stopped for a long time, and sometimes the nozzles are broken by falling coal blocks, so that the production is influenced.

Therefore, we have devised a nozzle guard for a coal mining machine that solves at least part of the above problems.

SUMMERY OF THE UTILITY MODEL

To the problem that above-mentioned prior art exists, the utility model provides a nozzle protector for coal-winning machine through setting up the protection casing, can cover the nozzle when the nozzle does not use, puts aside when the nozzle uses, does not influence the nozzle and uses, can protect the nozzle when the nozzle does not use simultaneously, prevents that the dust or the coal cinder that drops from blockking up or pounding the nozzle by a crashing object, leads to the condition emergence that needs shut down to maintain.

In order to achieve the purpose, the nozzle protection device for the coal mining machine comprises a water pipe, a nozzle protection device connected with the water pipe and a nozzle installed in the nozzle protection device, wherein the nozzle protection device comprises a protection seat in threaded connection with the water pipe and communicated with the inner cavity of the protection seat, a water pressure driving device arranged on the side wall of the protection seat and a protection shell covering the outside of the protection seat and fixedly connected with the protection seat; the inner wall of the protective shell is provided with a transmission device, and the transmission device is driven by a water pressure driving device to control the opening and closing of the protective cover.

Furthermore, the water pressure driving device comprises a through hole which is formed in the side wall of the protection seat and communicated with the inner cavity of the protection seat, a liquid sealing column which is arranged in the through hole and matched with the through hole, and a push rod which is fixed on one side of the liquid sealing column far away from the inner cavity of the protection seat, a hole cover is arranged outside the through hole, the push rod penetrates through the hole cover and is connected with a transmission device, and a spring is sleeved on the part, located between the hole cover and the liquid sealing column, of the push rod.

Furthermore, a third sealing ring is arranged on the liquid sealing column.

Furthermore, a limiting block for preventing the liquid sealing column from entering the inner cavity of the protection seat is arranged on the inner wall of the through hole close to the inner cavity of the protection seat.

Furthermore, the transmission device comprises a sliding rail arranged on the inner wall of the protective shell, a sliding block matched with the sliding rail, a first connecting rod with one end hinged to the push rod and the other end hinged to the sliding block, and a driving lever arranged on the inner side of the protective shell and fixedly connected with the protective shell, wherein a hinged second connecting rod is arranged between the driving lever and the sliding block.

Furthermore, a first sealing ring is arranged between the protection seat and the water pipe, and a second sealing ring is arranged between the protection seat and the nozzle.

Furthermore, the nozzle is connected with the protective seat through a second bolt, and the protective shell is connected with the protective seat through a first bolt.

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

1. the nozzle is well protected by arranging the protection seat, the protection shell and the protection cover, so that the nozzle is prevented from being damaged by dust or coal blocks, and the normal use of the nozzle is not influenced; through setting up water pressure drive arrangement, utilize high-pressure rivers to promote and seal liquid post compression spring and will do all can transmit for transmission by the push rod, open the protection casing, and when closing high-pressure rivers, the spring pushes back and seals the liquid post, and the push rod is pulled back, and transmission pulls back the protection casing, and the structure is ingenious, has realized that the protection casing opens and closes along with the user state of nozzle.

2. The nozzle is connected with the protection seat through the bolt, the protection seat is connected with the water pipe through the thread, and the nozzle is convenient to detach, install and maintain and replace.

Drawings

Fig. 1 is an external perspective view of the present invention;

FIG. 2 is a perspective view of the utility model in use;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a partially enlarged view of a portion a in fig. 3 according to the present invention.

In the figure: 1. the water pipe, 2, the protection seat, 3, the protective shell, 4, the protection casing, 5, the first sealing washer, 6, the first bolt, 7, the water pressure drive device, 71, the stopper, 72, the through-hole, 73, the liquid sealing column, 74, the third sealing washer, 75, the push rod, 76, the spring, 77, the handhole door, 8, the nozzle, 9, the second sealing washer, 10, the second bolt, 11, the first connecting rod, 12, the slide rail, 13, the slider, 14, the second connecting rod, 15, the driving lever.

Detailed Description

The technical solutions in the implementation of the present invention will be clear from the following description and accompanying drawings, and the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 4, an embodiment of the present invention provides a nozzle protection device for a coal mining machine, including a water pipe 1, a nozzle protection device connected to the water pipe 1, and a nozzle 8 installed in the nozzle protection device, the nozzle protection device includes a protection seat 2 connected to the water pipe 1 by screw threads and having an inner cavity communicated with each other, a water pressure driving device 7 arranged on a side wall of the protection seat 2, and a protection shell 3 covering an outside of the protection seat 2 and fixedly connected to the protection seat 2, a nozzle 8 communicated to an inner cavity of the protection seat 2 is fixedly connected to a top of the protection seat 2, and a protection cover 4 hinged to the protection shell 3 is provided right above the nozzle 8; the inner wall of the protective shell 3 is provided with a transmission device, and the transmission device is driven by a water pressure driving device 7 to control the opening and closing of the protective cover 4. As shown in fig. 3, the transmission device is arranged inside the protective shell 3, so that the structural stability is improved and the transmission device is not easy to damage. The traditional spraying device has the advantages that the nozzle is directly arranged on the water pipe, the water pipe is fixed on the coal mining machine, and the nozzle is exposed, so that the working environment is severe, and the nozzle is frequently damaged. The utility model provides a atomizer has set up parts such as protection seat 2, protection casing 4 and protecting crust 3 between nozzle 8 and water pipe 1 and has protected nozzle 8, realizes following of protecting crust 3 again through water pressure drive arrangement 7 and transmission simultaneously and opens or be closed, and the structure is ingenious, convenient to use.

Further, the hydraulic driving device 7 comprises a through hole 72 formed in the side wall of the protection seat 2 and communicated with the inner cavity of the protection seat 2, a liquid sealing column 73 arranged in the through hole 72 and matched with the through hole 72, and a push rod 75 fixed on one side of the liquid sealing column 73 far away from the inner cavity of the protection seat 2, a hole cover 77 is arranged outside the through hole 72, the push rod 75 penetrates through the hole cover 77 and is connected with a transmission device, and a spring 76 is sleeved on a part of the push rod 75 located between the hole cover 77 and the liquid sealing column 73. As shown in fig. 4, the hydraulic driving device 7 utilizes the high-pressure water flow in the inner cavity of the protection seat 2 to push the liquid sealing column 73 to compress the spring 76 and transmit the force to the transmission device through the push rod 75, so as to open the protection cover 4, and when the high-pressure water flow is closed, the spring 76 pushes back the liquid sealing column 73, the push rod 75 is pulled back, the transmission device pulls back the protection cover 4, the structure is ingenious, and the protection cover 4 is opened and closed along with the use state of the nozzle 8.

Further, a third seal ring 74 is provided on the liquid seal column 73. Water is prevented from flowing out through the gap between the liquid seal column 73 and the through hole 72.

Furthermore, a limiting block 71 for preventing the liquid sealing column 73 from entering the inner cavity of the protection seat 2 is arranged on the inner wall of the through hole 72 close to the inner cavity of the protection seat 2.

Further, the transmission device comprises a sliding rail 12 mounted on the inner wall of the protective shell 3, a sliding block 13 matched with the sliding rail 12, a first connecting rod 11 with one end hinged to the push rod 75 and the other end hinged to the sliding block 13, and a shift lever 15 arranged on the inner side of the protective shell 3 and fixedly connected with the protective cover 4, wherein a hinged second connecting rod 14 is arranged between the shift lever 15 and the sliding block 13. As shown in fig. 3, the left and right movement of the push rod 75 is converted into the movement of the slider 13 on the slide rail 12 through the first connecting rod 11, and the slider 13 pulls the shift lever 15 through the second connecting rod 14 to control the rotation of the shield 4 around the hinge shaft thereof with the shield shell 3, thereby realizing the opening and closing of the shield 4.

Further, a first sealing ring 5 is arranged between the protection seat 2 and the water pipe 1, and a second sealing ring 9 is arranged between the protection seat 2 and the nozzle 8. Prevent water leakage and increase the sealing performance.

Further, the nozzle 8 is connected with the protection seat 2 through a second bolt 10, and the protection shell 3 is connected with the protection seat 2 through a first bolt 6. Is convenient to be disassembled and assembled.

When in use: high-pressure water flow gets into the inner chamber of protection seat 2 through the inner chamber of water pipe 1 and passes through nozzle 8 blowout at last, high-pressure rivers in the inner chamber of protection seat 2 promote to seal liquid post 73 compression spring 76 and give transmission by push rod 75 with power, open protection casing 4, and when closing high-pressure rivers, spring 76 pushes back and seals liquid post 73, push rod 75 pullback, transmission pulls back protection casing 4, and the structure is ingenious, it opens and closes along with the user state of nozzle 8 to have realized protection casing 4, make nozzle 8 protected well, prevent that dust or coal cinder from blockking up damage nozzle 8, do not influence nozzle 8's normal use simultaneously again, the problem that nozzle 8 often was blockked up by the dust or was pounded by the coal cinder in the past has been solved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.

Claims

1. A nozzle protection device for a coal mining machine is characterized by comprising a water pipe (1), a nozzle protection device connected with the water pipe (1) and a nozzle (8) installed in the nozzle protection device, wherein the nozzle protection device comprises a protection seat (2) which is in threaded connection with the water pipe (1) and is communicated with the inner cavity of the protection seat, a water pressure driving device (7) arranged on the side wall of the protection seat (2) and a protection shell (3) which covers the outer part of the protection seat (2) and is fixedly connected with the protection seat (2), the top of the protection seat (2) is fixedly connected with the nozzle (8) communicated with the inner cavity of the protection seat, and a protection cover (4) hinged to the protection shell (3) is arranged right above the nozzle (8); the inner wall of the protective shell (3) is provided with a transmission device, and the transmission device is driven by a water pressure driving device (7) to control the opening and closing of the protective cover (4).

2. A nozzle guard for a coal mining machine according to claim 1, characterized in that the hydraulic driving device (7) comprises a through hole (72) which is opened on the side wall of the guard base (2) and is communicated with the inner cavity of the guard base (2), a liquid sealing column (73) which is arranged in the through hole (72) and is matched with the through hole (72), and a push rod (75) which is fixed on one side of the liquid sealing column (73) far away from the inner cavity of the guard base (2), wherein the through hole (72) is externally provided with a hole cover (77), the push rod (75) penetrates through the hole cover (77) and is connected with a transmission device, and a spring (76) is sleeved on the part of the push rod (75) which is positioned between the hole cover (77) and the liquid sealing column (73).

3. A nozzle guard for a coal mining machine according to claim 2, characterized in that a third sealing ring (74) is provided on the liquid sealing column (73).

4. The nozzle protection device for the coal mining machine is characterized in that a limiting block (71) used for preventing the liquid sealing column (73) from entering the inner cavity of the protection seat (2) is arranged on the inner wall, close to the inner cavity of the protection seat (2), of the through hole (72).

5. The nozzle guard for the coal mining machine is characterized in that the transmission device comprises a sliding rail (12) arranged on the inner wall of the guard shell (3), a sliding block (13) matched with the sliding rail (12), a first connecting rod (11) with one end hinged with a push rod (75) and the other end hinged with the sliding block (13), and a driving lever (15) arranged on the inner side of the guard shell (3) and fixedly connected with the guard cover (4), wherein a hinged second connecting rod (14) is arranged between the driving lever (15) and the sliding block (13).

6. A nozzle guard for a coal mining machine according to claim 1, characterized in that a first sealing ring (5) is arranged between the guard base (2) and the water pipe (1), and a second sealing ring (9) is arranged between the guard base (2) and the nozzle (8).

7. A nozzle guard for a coal mining machine according to claim 1, characterized in that the nozzle (8) and the guard base (2) are connected by a second bolt (10), and the guard casing (3) and the guard base (2) are connected by a first bolt (6).