Spraying device for fully mechanized coal mining face

Abstract

The utility model belongs to the field of mining equipment, and particularly relates to a spraying device for a fully mechanized coal mining face, which comprises a mounting bracket, a spraying device and a spraying device, the spray heads are mounted on the mounting bracket, and at least one spray head is a swing spray head movably connected with the mounting bracket, so that the swing spray head can swing in the direction perpendicular to the rocker arm; the transmission assembly comprises a driving part and a transmission part, the driving part is installed on a roller of the coal mining machine, the transmission part is movably installed on the installation support, the transmission part is connected with the swing spray head, and when the roller rotates, the driving part drives the swing spray head to swing through the transmission part. And the spraying range of spraying and dust falling is increased, the dust falling effect is improved, and the problems existing in the prior art are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of mining equipment, especially relates to a fully mechanized working face spraying device. BACKGROUND

[0002] In the production process of the fully mechanized working face, a large amount of dust will be generated when the drum of the coal mining machine cuts the coal wall, and the prior art mostly adopts a fixed drum spraying device. However, such a device has obvious defects:

[0003] The fixed spray head has a limited coverage range and cannot block the dust diffused along the shaft;

[0004] The additional electric swing mechanism increases the complexity of the equipment and has a safety hazard in the underground explosion-proof environment;

[0005] The traditional transmission mechanism lacks a dustproof design, and the invasion of coal slime easily causes the jamming and failure of the moving parts;

[0006] Based on this, the utility model is provided. UTILITY MODEL CONTENTS

[0007] To solve the above technical problems, the utility model provides a fully mechanized working face spraying device, which drives the swing spray head to swing through the rotation of the drum, increases the spraying range of the spray dust reduction, improves the dust reduction effect, and effectively solves the problems in the prior art.

[0008] To solve the above problems, the utility model provides a fully mechanized working face spraying device, which comprises: a mounting bracket mounted on the top of the rocker arm of the coal mining machine; a spray head mounted on the mounting bracket, and at least one of the spray heads is a swing spray head movably connected with the mounting bracket, so that the swing spray head can swing in a direction perpendicular to the rocker arm; a transmission assembly comprising a driving part mounted on the drum of the coal mining machine and a transmission part movably mounted on the mounting bracket, the transmission part being connected with the swing spray head, and the driving part driving the swing spray head to swing through the transmission part when the drum rotates.

[0009] Further, the driving part is a protrusion fixedly arranged on the outer circumferential surface of the drum; the driving part comprises a driving rod and a spring arranged on the driving rod, the driving rod is provided with a driving head extending to the rotation path of the driving part, the driving part pushes the driving head to move in a first direction when the drum rotates, and when the driving part is separated from the driving head, the spring pushes the driving rod to move in a direction opposite to the first direction, one end of the driving rod away from the driving head is connected with the swing spray head in a matching mode, so that the swing spray head swings when the driving rod moves.

[0010] Further, an outer screw is arranged at one end of the driving rod away from the driving head, and a rotating block with an inner screw is arranged at a lower end of the swing nozzle, the rotating block is rotatably connected with the mounting bracket, and the outer screw is matched with the inner screw.

[0011] Further, the spraying device further comprises a mounting box, the mounting box is buckled outside the mounting bracket, and the nozzle extends outside the mounting box.

[0012] Further, the swing nozzle is provided with a rubber cylinder, and the rubber cylinder connects the swing nozzle and the mounting box.

[0013] Further, a top surface of the mounting box is arc-shaped.

[0014] Further, the mounting box is detachably connected with the mounting bracket.

[0015] Further, the mounting box is connected with the mounting bracket through bolts.

[0016] Further, the mounting box is connected with the mounting bracket through buckles.

[0017] The utility model discloses the beneficial effect lies in, the utility model discloses a roller rotation drives swing nozzle swing, has increased the spraying range of spraying dust fall, has improved the effect of dust fall, effectively solved the problem in prior art. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural schematic diagram of an embodiment of the utility model.

[0019] Figure 2 It is Figure 1 It is the structural schematic diagram of another view angle after removing the mounting box of the shown embodiment.

[0020] Wherein, 1, coal winning machine;101, rocker arm;2, nozzle;201, swing nozzle;3, mounting bracket;4, lug;5, driving rod;501, driving head;6, spring;7, rotating block;8, mounting box;9, rubber cylinder. DETAILED DESCRIPTION

[0021] In order to make the personnel of the prior art better understand the technical scheme of the utility model, the technical scheme of the utility model is described clearly and completely below in combination with the drawings of the utility model, based on the embodiment in the application, other similar embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the application. In addition, the direction words mentioned in the following embodiments, such as "up", "down", "left", "right" and the like, are only the direction of the drawings, therefore, the direction words used are used to explain but not limit the present application.

[0022] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0023] In this utility model, such as Figures 1 to 2 As shown, a spraying device for a fully mechanized mining face is provided, comprising: a mounting bracket 3, mounted on the top of the rocker arm 101 of a coal mining machine 1; a nozzle 2, mounted on the mounting bracket 3, wherein at least one of the nozzles 2 is a swing nozzle 201 movably connected to the mounting bracket 3, so that the swing nozzle 201 can swing in a direction perpendicular to the rocker arm 101; and a transmission assembly, comprising a drive unit mounted on the drum of the coal mining machine 1 and a transmission unit movably mounted on the mounting bracket 3, wherein the transmission unit is connected to the swing nozzle 201, and when the drum rotates, the drive unit drives the swing nozzle 201 to swing through the transmission unit.

[0024] When the spraying device of this utility model is used in coal mining, it can spray dust at the rocker arm 101 of the coal mining machine 1. The nozzle 2 of the rocker arm 101 of the coal mining machine 1 can form a fog wall distributed along the extension direction of the rocker arm 101 to reduce the diffusion of coal dust. At the same time, when the drum rotates, the drive part on the drum swings through the transmission part, so that the swing nozzle 201 swings in the direction perpendicular to the rocker arm 101, thereby making the swing nozzle 201 swing to form a fog wall, reducing the diffusion of coal dust along the extension direction of the rocker arm 101.

[0025] Meanwhile, the oscillating nozzle 201 is rotated by the drum, eliminating the need for additional drive components; moreover, the drum cutting coal and the oscillation of the oscillating nozzle 201 can be synchronized, which is more conducive to the formation of a fog wall and makes the oscillation of the oscillating nozzle 201 more stable and continuous.

[0026] In the illustrated embodiment, the driving unit and transmission assembly are further specifically described as follows: the driving unit is a protrusion 4 disposed on the roller; the driving unit includes a driving rod 5 and a spring 6 disposed on the driving rod 5; the driving rod 5 is provided with a driving head 501 extending into the rotation path of the driving unit; when the roller rotates, the driving unit pushes the driving head 501 to move in a first direction; when the driving unit separates from the driving head 501, the spring 6 pushes the driving rod 5 to move in the opposite direction to the first direction; one end of the driving rod 5 away from the driving head 501 is connected to the oscillating nozzle 201 so that the oscillating nozzle 201 oscillates when the driving rod 5 moves.

[0027] As shown in the figure, the driving rod 5 is provided with a convex ring, and the mounting bracket 3 is provided with a limiting ring through which the driving rod 5 passes, the limiting ring being located at the right side of the convex ring. When the roller rotates, the convex block 4 can push the driving head 501 to the right, and the spring 6 is compressed. After the convex block 4 separates from the driving head 501, the spring 6 pushes the driving rod 5 to the left, so that the driving rod 5 realizes reciprocating movement.

[0028] For the connection and cooperation between the driving rod 5 and the swing nozzle 201, in the embodiment shown, further specifically, an outer screw is arranged at the end of the driving rod 5 away from the driving head 501, and a rotating block 7 with an inner screw is arranged at the lower end of the swing nozzle 201, the rotating block 7 being rotationally connected with the mounting bracket 3, and the outer screw being cooperated with the inner screw. As shown in the figure, the mounting bracket 3 is provided with a mounting ring, the rotating block 7 of the swing nozzle 201 is arranged to rotate in the mounting ring, and the driving rod 5 passes through the rotating block 7. The top of the rotating block 7 forms a gap for the swing nozzle 201 to leak out.

[0029] For the embodiment shown, further specifically, the spray device further comprises a mounting box 8, the mounting box 8 being buckled on the outer side of the mounting bracket 3, and the nozzle 2 extending out of the outer side of the mounting box 8. As shown in the figure, by arranging the mounting box 8, the mounting bracket 3 and the transmission assembly can be protected, and the transmission assembly can be prevented from being damaged by falling coal.

[0030] Further optimization is that the swing nozzle 201 is provided with a rubber cylinder 9, the rubber cylinder 9 connecting the swing nozzle 201 and the mounting box 8. As shown in the figure, at the position of the swing nozzle 201, the mounting box 8 has a gap for the swing nozzle 201 to extend out, so that the swing nozzle 201 can swing, and the arrangement of the rubber cylinder 9 can prevent falling coal from entering the mounting box 8 through the gap. The rubber cylinder 9 can be made of a rubber sheet that can be deformed greatly, and the rubber cylinder 9 is connected with the parts of the mounting box 8 on both sides of the gap.

[0031] Further optimization is that the top surface of the mounting box 8 is arc-shaped. By arranging the top of the mounting box 8 to be arc-shaped, it is beneficial to reduce the accumulation of falling coal in the mounting box 8.

[0032] In the preferred embodiment, the mounting box 8 and the mounting bracket 3 are detachably connected. Thus, by detachably connecting the mounting box 8 and the mounting bracket 3, it is convenient to install, maintain and replace the nozzle 2.

[0033] For the detachable connection between the mounting box 8 and the mounting bracket 3, in the preferred embodiment, the mounting box 8 and the mounting bracket 3 are connected by bolts, further specifically, a threaded hole can be arranged on the mounting bracket 3, and an outward flange can be arranged on the side wall of the mounting box 8, and the bolt passes through the outward flange and is screw-connected with the threaded hole.

[0034] Alternatively, in a preferred embodiment, the mounting box 8 is connected with the mounting bracket 3 through a snap connection. Further specifically, a hook can be arranged on the outer edge of the mounting bracket 3, and a clamping hole can be arranged on the side wall of the mounting box 8. During mounting, the hook is clamped into the clamping hole. Alternatively, the mounting box 8 can be integrally connected with the mounting bracket 3 through welding. As for the connection between the mounting bracket 3 and the rocker arm 101, in a preferred embodiment, the mounting bracket 3 can be directly welded on the rocker arm 101.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and in the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to the process, method, product or device.

[0036] Optionally, the specific examples in the embodiments can refer to the examples described in the above embodiments, and the embodiments will not be described here.

[0037] The serial numbers of the embodiments of the present application described above are only for description, and do not represent the advantages or disadvantages of the embodiments.

[0038] In the above embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0039] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A spraying device for a fully mechanized coal mining face, characterized in that The utility model relates to a spraying device for coal mining machine, comprising: a mounting bracket mounted on the top of a rocker arm of a coal mining machine; a plurality of spray heads mounted on the mounting bracket, at least one of the spray heads being a swing spray head movably connected to the mounting bracket so as to swing in a direction perpendicular to the rocker arm; a transmission assembly comprising a driving part mounted on a driving shaft of a drum of the coal mining machine and a transmission part movably mounted on the mounting bracket, the transmission part being connected to the swing spray head, the driving part driving the swing spray head to swing through the transmission part when the drum rotates.

2. The fully-mechanized coal mining face spraying device according to claim 1, characterized in that, The driving part is a protrusion fixedly arranged on an outer circumferential surface of the drum. The driving part comprises a driving rod and a spring arranged on the driving rod, the driving rod being provided with a driving head extending to a rotation path of the driving part, the driving part pushing the driving head to move in a first direction when the drum rotates, the spring pushing the driving rod to move in a direction opposite to the first direction when the driving part is separated from the driving head, one end of the driving rod away from the driving head being connected to the swing spray head so as to drive the swing spray head to swing when the driving rod moves.

3. The fully-mechanized coal mining face spraying device according to claim 2, characterized in that, One end of the driving rod away from the driving head is provided with an external screw, a lower end of the swing spray head is provided with a rotating block with an internal screw, the rotating block being rotatably connected to the mounting bracket, the external screw being matched with the internal screw.

4. The fully-mechanized coal mining face spraying device according to claim 1, characterized in that, The spraying device further comprises a mounting box, the mounting box being fastened to an outer side of the mounting bracket, the spray heads extending out of the mounting box.

5. The fully-mechanized coal mining face spraying device according to claim 4, characterized in that, The swing spray head is provided with a rubber cylinder, the rubber cylinder connecting the swing spray head and the mounting box.

6. The fully-mechanized coal mining face spraying device according to claim 4, characterized in that, A top surface of the mounting box is arc-shaped.

7. The fully-mechanized coal mining face spraying device according to claim 4, characterized in that, The mounting box is detachably connected to the mounting bracket.

8. The fully-mechanized coal mining face spraying device according to claim 7, characterized in that, The mounting box is connected to the mounting bracket through bolts.

9. The fully-mechanized coal mining face spraying device according to claim 7, characterized in that, The mounting box is connected to the mounting bracket through buckles.

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