External spraying and dust-settling device of coal mining machine

Abstract

The utility model discloses an external spraying and dust falling device of a coal mining machine, and relates to the technical field of dust falling of coal mining machines. The external spraying and dust falling device of the coal mining machine comprises a fixing plate and a plurality of spraying units, the fixing plate is used for being installed on a rocker arm, the spraying units are arranged on the fixing plate at intervals, each spraying unit comprises a connecting base, an installing plate, a connecting pipe, a spraying head and a water conveying pipe, the connecting base is arranged on the fixing plate, and the installing plate is arranged on the connecting pipe. The mounting plate is rotatably arranged on the connecting seat, the connecting pipe is rotatably arranged on the mounting plate and is provided with a working position and a maintenance position, the axis of the connecting pipe is parallel to the mounting plate at the working position, and the axis of the connecting pipe and the extension line of the mounting plate are arranged at an included angle at the maintenance position. The spray head and the water conveying pipe are detachably connected to the two ends of the connecting pipe respectively. According to the external spraying and dust falling device of the coal mining machine, the spraying angle of the spray head can be adjusted, the spray head can be conveniently replaced, and the dust falling effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal machine dust falling technology field, specifically, relate to a kind of coal winning machine external spray dust falling device. BACKGROUND

[0002] In the process of coal mining operation, high-pressure water is supplied to coal machine by pump station system, and the high-pressure water is atomized into small water droplets by coal machine external spray device, which is sprayed to the coal cutting drum, which can effectively control the raising and diffusion of coal dust, thereby improving the working environment, protecting the health of workers, reducing the risk of dust explosion accidents, and improving the safety and environmental protection of coal mining operation. However, during use, the spray nozzle is often used with special matching equipment for coal mining machine, and the spray nozzle is fixedly installed on the coal mining machine, and the spray angle cannot be adjusted, which causes problems such as disorder of spray direction and angle, and the spray nozzle is easy to be blocked, which is troublesome to disassemble and replace, and seriously affects the dust falling effect of the working face. SUMMARY

[0003] The utility model aims to solve at least one of the technical problems in the related art to some extent.

[0004] Therefore, the utility model embodiment proposes a coal winning machine external spray dust falling device, which can adjust the spray angle of the spray head and facilitate the replacement of the spray head, thereby ensuring the dust falling effect.

[0005] The coal winning machine external spray dust falling device of the utility model embodiment comprises:

[0006] A fixed plate is used to install a rocker arm.

[0007] A plurality of spray units are arranged on the fixed plate and spaced apart along the extension direction of the fixed plate, and the spray unit comprises a connecting seat, a mounting plate, a connecting pipe, a spray head and a water delivery pipe. The connecting seat is arranged on the fixed plate, the mounting plate is rotatably arranged on the connecting seat, the connecting pipe is rotatably arranged on the mounting plate and has a working position and a maintenance position. In the working position, the axis of the connecting pipe is parallel to the mounting plate, and in the maintenance position, the axis of the connecting pipe is arranged at an angle with the extension line of the mounting plate. The spray head and the water delivery pipe are detachably connected to both ends of the connecting pipe, and the mounting plate is used to drive the rotation of the spray head.

[0008] The coal winning machine external spray dust falling device of the utility model embodiment can adjust the spray angle of the spray head, and is convenient for replacing the spray head, thereby ensuring the dust falling effect.

[0009] In some embodiments, the connecting seat comprises a fixed segment and a movable segment connected rotatably, the fixed segment is fixedly arranged on the fixed plate, the mounting plate is arranged on the movable segment, a first limiting piece is slidingly arranged on the fixed segment along the extension direction, the first limiting piece is rotationally matched with the fixed segment, and the movable segment is provided with a first limiting portion, the first limiting portion has a locking position, and the first limiting piece is rotationally matched with the first limiting portion at the locking position.

[0010] In some embodiments, the first limiting piece is a limiting sleeve, a plurality of limiting tooth grooves are sequentially arranged on the inner wall of the limiting sleeve in the circumferential direction, the first limiting portion is a plurality of limiting tooth racks sequentially arranged in the circumferential direction of the movable segment, the limiting tooth racks and the limiting tooth grooves are one-to-one corresponding and size-fittingly arranged, and the limiting sleeve is arranged on the first limiting portion at the locking position.

[0011] In some embodiments, a first driving piece is arranged between the first limiting piece and the fixed plate, and the first driving piece is used to drive the first limiting piece to move away from the fixed plate.

[0012] In some embodiments, a second limiting piece is arranged on the connecting seat, two connecting lugs are arranged on the connecting seat, a rotating shaft is arranged on the connecting lug, a positioning disc is arranged on the side of the mounting plate close to the connecting seat, the second limiting piece is movably arranged on the connecting lug and matched with the positioning disc to fix the connecting seat.

[0013] In some embodiments, the positioning disc is coaxially arranged with the rotating shaft, a plurality of first through holes are arranged on the positioning disc in the circumferential direction at intervals, and the distances from the plurality of first through holes to the rotating shaft are equal, a second through hole is arranged on the connecting lug corresponding to the first through hole, and the second limiting piece is used to be simultaneously inserted and matched with the first through hole and the second through hole.

[0014] In some embodiments, a plurality of second through holes are arranged corresponding to the first through holes, or a second driving piece is arranged, the second driving piece is connected with the second limiting piece and the connecting lug and is used to drive the second limiting piece to move close to the connecting lug.

[0015] In some embodiments, a third limiting piece is slidingly arranged on the mounting plate, and the third limiting piece is provided with a limiting hole, and the spray head is inserted and matched with the limiting hole at the working position.

[0016] In some embodiments, a third driving piece and a guide rod are arranged, the guide rod is arranged on the mounting plate, the third limiting piece is slidingly arranged on the guide rod, and the third driving piece is sleeved on the guide rod and is used to drive the third limiting piece to move close to the spray head.

[0017] In some embodiments, the mounting plate is provided with a relief groove corresponding to the connecting pipe, and a circle corresponding to the relief groove has a diameter not less than that of the connecting pipe. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the coal mining machine external spray dust-settling device according to an embodiment of the present application.

[0019] Figure 2 is a structural schematic view of a spray unit in the coal mining machine external spray dust-settling device according to an embodiment of the present application.

[0020] Figure 3 is a connection schematic view of a connecting seat and a mounting plate in the coal mining machine external spray dust-settling device according to an embodiment of the present application.

[0021] Figure 4 is a connection schematic view of a mounting plate and a connecting pipe in the coal mining machine external spray dust-settling device according to an embodiment of the present application.

[0022] REFERENCE SIGNS:

[0023] The fixed plate 100;

[0024] The spray unit 200;

[0025] The connecting seat 1; the fixed section 11; the movable section 12; the first limiting part 121; the first limiting member 13; the first driving member 14; the connecting lug 15; the second perforation 151;

[0026] The mounting plate 2; the positioning disc 21; the first perforation 211; the relief groove 22;

[0027] The connecting pipe 3; the spray head 4; the water delivery pipe 5; the second limiting member 6; the third limiting member 7; the limiting hole 71; the third driving member 8; the guide rod 9. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0029] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the coal mining machine external spray dust falling device of the embodiment of the utility model includes fixed plate 100 and multiple spray units 200, the fixed plate 100 is used to install in the rocker arm, multiple spray units 200 are arranged in the fixed plate 100 and are arranged along the extension direction of the fixed plate 100, the spray unit 200 includes connecting seat 1, mounting plate 2, connecting pipe 3, spray head 4 and water delivery pipe 5, connecting seat 1 is arranged in the fixed plate 100, mounting plate 2 is rotatably arranged in connecting seat 1, connecting pipe 3 is rotatably arranged in mounting plate 2 and has operation position and maintenance position, in the operation position, the axis of connecting pipe 3 is parallel to mounting plate 2, in the maintenance position, the axis of connecting pipe 3 is arranged at an angle with the extension line of mounting plate 2, spray head 4 and water delivery pipe 5 are detachably connected to both ends of connecting pipe 3 respectively, and mounting plate 2 is used to drive spray head 4 to rotate.

[0030] The coal mining machine external spray dust falling device of the embodiment of the utility model can adjust the spray angle of spray head 4, and the spray head 4 is convenient to replace, so that the dust falling effect is guaranteed.

[0031] The coal mining machine external spray dust falling device of the embodiment of the utility model can adjust the spray angle of spray head 4, and the spray head 4 is convenient to replace, so that the dust falling effect is guaranteed.

[0032] Optionally, the fixed plate 100 is made of a metal plate, the fixed plate 100 can be bent to a certain radian to fit the planetary head position of the rocker arm, and when the fixed plate 100 is fixed, the fixed plate 100 can be welded and fixed by welding bolts or fastened and fixed by fastening bolts.

[0033] Optionally, the water delivery pipe 5 is connected with the coal mining machine spray pump of the pump station system to ensure the pumping pressure of the water body in the water delivery pipe 5.

[0034] Optionally, in the maintenance position, the angle between the axis of connecting pipe 3 and the extension line of mounting plate 2 is a right angle.

[0035] In some embodiments, as shown in Figure 1 and Figure 2 The connecting seat 1 includes a fixed segment 11 and a movable segment 12 rotatably connected, the fixed segment 11 is fixedly arranged in the fixed plate 100, the mounting plate 2 is arranged in the movable segment 12, a first limiting piece 13 is slidably arranged on the fixed segment 11 along the extension direction, the first limiting piece 13 is rotationally matched with the fixed segment 11, the movable segment 12 is provided with a first limiting part 121, the first limiting part 121 has a locking position, and in the locking position, the first limiting piece 13 is rotationally matched with the first limiting part 121.

[0036] The movable section 12 is rotatably connected with the fixed section 11 through a bearing, and the direction of the mounting plate 2 and the nozzle 4 can be adjusted by rotating the movable section 12, so as to adjust the spraying direction, which is convenient to operate. The angle of the movable section 12 relative to the fixed section 11 after rotation can be fixed by setting the locking position of the first limiting part 13, so as to fix the spraying direction of the nozzle 4, which is safe and reliable, so as to improve the dust-settling efficiency.

[0037] In some embodiments, as shown in Figure 1 and Figure 2 , the first limiting part 13 is a limiting sleeve, and a plurality of limiting tooth grooves are sequentially arranged on the inner wall of the limiting sleeve in the circumferential direction. The first limiting part 121 is a plurality of limiting racks sequentially arranged in the circumferential direction of the movable section 12, and the limiting racks and the limiting tooth grooves are one-to-one corresponding and size-fitting. In the locking position, the limiting sleeve is sleeved on the first limiting part 121.

[0038] When adjusting the movable section 12, the position of the limiting sleeve is moved so that the limiting sleeve is located on the fixed section 11. When the movable section 12 is adjusted to the position, the limiting sleeve is sleeved on the fixed section 11 and the first limiting part 121 at the same time. The limiting tooth grooves and the limiting tooth racks are in sliding fit. By arranging a plurality of continuous limiting tooth racks in the circumferential direction of the movable section 12, the rotation of the movable section 12 at the corresponding angle can be realized by each limiting tooth rack, which is convenient for adjusting and controlling the rotation angle of the movable section 12. The limiting sleeve can fix the movable section 12 and the fixed section 11 together, which is convenient to operate and reliable in connection.

[0039] Optionally, a guide rack is arranged on the fixed section 11 corresponding to the limiting tooth groove, and the cross-sectional size of the guide rack is equal to the cross-sectional size of the limiting rack.

[0040] In some embodiments, as shown in Figure 1 and Figure 2 , the first driving part 14 is arranged between the first limiting part 13 and the fixed plate 100, and the first driving part 14 is used for driving the first limiting part 13 to move away from the fixed plate 100. By arranging the first driving part 14, the first limiting part 13 can be driven to the locking position, and the position of the first limiting part 13 can be fixed when the first limiting part 13 is in the locking position, so as to fix the movable section 12 and ensure the connection.

[0041] Optionally, the first driving part 14 is a supporting spring, and is sleeved on the fixed section 11.

[0042] In some embodiments, as shown in Figure 2 and Figure 3As shown, the connecting seat 1 is provided with two connecting lugs 15, and the connecting lugs 15 are provided with rotating shafts. The mounting plate 2 is provided with a positioning disc 21 on the side close to the connecting seat 1. The second limiting member 6 is movably arranged on the connecting lug 15 and cooperates with the positioning disc 21 to fix the connecting seat 1.

[0043] The mounting plate 2 is rotated by the rotating shafts, thereby driving the connecting pipe 3 and the spray head 4 to rotate, so as to adjust the spray angle of the spray head 4. The second limiting member 6 and the positioning disc 21 cooperate to adjust the inclined angle after rotation, so as to ensure that the spray angle of the spray head 4 meets the requirements, thereby ensuring the dust-settling effect.

[0044] In some embodiments, as shown in Figure 2 and Figure 3 The positioning disc 21 is coaxially arranged with the rotating shafts. The positioning disc 21 is provided with a plurality of first perforations 211 arranged at intervals in the circumferential direction, and the distances from the plurality of first perforations 211 to the rotating shafts are equal. The connecting lug 15 is provided with a second perforation 151 corresponding to the first perforation 211. The second limiting member 6 is used to simultaneously plug and cooperate with the first perforation 211 and the second perforation 151.

[0045] The positioning disc 21 is rotated. By selecting different first perforations 211 corresponding to the second perforations 151, the second limiting member 6 is inserted and fixed, so that the second limiting member 6 simultaneously passes through the second perforation 151 and the first perforation 211, thereby fixing the positioning disc 21 and the mounting plate 2. The operation is convenient, and the rotating angle of the mounting plate 2 can be quickly adjusted to ensure the spray coverage area and the dust-settling effect of the spray head 4.

[0046] In some embodiments, as shown in Figure 2 and Figure 3 The second perforation 151 corresponds to the first perforation 211 and is provided with a plurality of second perforations. By selecting different second perforations and first perforations, the rotating angle range of the positioning plate can be adjusted, and the selectable fixing angle of the positioning disc 21 can be increased by the second perforations at different positions, thereby ensuring the spray dust-settling effect of the spray head 4.

[0047] In some embodiments, the second drive member is connected with the second limiting member 6 and the connecting lug 15 and is used to drive the second limiting member 6 to move towards the connecting lug 15.

[0048] Specifically, the second limiting member 6 includes a limiting plate and a limiting rod fixedly connected. The limiting rod is used to plug and cooperate with the first perforation 211 and the second perforation 151. The second drive member is a tension spring. The second drive member is sleeved on the limiting rod and is fixedly connected with the limiting plate and the connecting lug 15 at both ends. The second drive member is used to drive the limiting plate to move towards the connecting lug 15, so as to ensure that the limiting rod is simultaneously arranged in the first perforation 211 and the second perforation 151, thereby avoiding the second limiting member 6 from slipping off.

[0049] In some embodiments, as shown in Figure 2 and Figure 4 The third limiting piece 7 is slidingly arranged on the mounting plate 2, and the third limiting piece 7 is provided with a limiting hole 71. In the working position, the spray head 4 is inserted and matched in the limiting hole 71. When the spray head 4 normally works, the third limiting piece 7 is sleeved on the spray head 4 through the limiting hole 71, so as to avoid the rotation of the spray head 4 relative to the mounting plate 2, and to ensure the spray angle to ensure the spray coverage area. When the spray head 4 needs to be replaced, the third limiting piece 7 can be moved to release the fixing of the spray head 4, so as to rotate the connecting pipe 3 from the working position to the maintenance position, which is convenient to operate and replace, and ensures the dust suppression effect on the pulverized coal.

[0050] In some embodiments, as shown in Figure 4 The third driving piece 8 and the guide rod 9 are arranged on the mounting plate 2. The third limiting piece 7 is slidingly arranged on the guide rod 9. The third driving piece 8 is sleeved on the guide rod 9 and is used to drive the third limiting piece 7 to move towards the direction close to the spray head 4.

[0051] Specifically, the guide rod 9 is provided with two guide rods 9. The mounting plate 2 is provided with a support plate corresponding to the guide rod 9, and the support plate is arranged at both ends of the guide rod 9. The third limiting piece 7 is slidingly arranged on the guide rod 9. The third driving piece 8 is a supporting spring. The third driving piece 8 is sleeved on the guide rod 9 and located on the side of the third limiting piece 7 away from the spray head 4. When the spray head 4 normally works, the third driving piece 8 applies a pushing force to the third limiting piece 7 to ensure the fixing of the position of the spray head 4 relative to the mounting plate 2.

[0052] In some embodiments, as shown in Figure 4 The mounting plate 2 is provided with an avoiding groove 22 corresponding to the connecting pipe 3. The diameter of the circle corresponding to the avoiding groove 22 is not less than the diameter of the connecting pipe 3. By arranging the avoiding groove 22, the rotating angle of the connecting pipe 3 relative to the mounting plate 2 can be increased under the condition of meeting the rotating requirement of the connecting pipe 3 relative to the mounting plate 2. The spray head 4 is convenient to disassemble and install, and the distance between the rotating axis of the connecting pipe 3 and the mounting plate 2 is reduced, the overall size of the device is reduced, and the safety and reliability are improved.

[0053] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0054] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0055] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection or communication with each other; it can be directly connected, or indirectly connected through intermediate medium, or the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0056] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0057] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0058] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A coal mining machine external spray dust reduction device, characterized in that, The utility model relates to a spraying device for a swing arm, comprising: a fixing plate for mounting on a swing arm; a plurality of spraying units arranged on the fixing plate and spaced along the extension direction of the fixing plate, each spraying unit comprising a connecting seat, a mounting plate, a connecting pipe, a spray head and a water delivery pipe, the connecting seat being arranged on the fixing plate, the mounting plate being rotatably arranged on the connecting seat, the connecting pipe being rotatably arranged on the mounting plate and having a working position and a maintenance position, in the working position, the axis of the connecting pipe is parallel to the mounting plate, in the maintenance position, the axis of the connecting pipe is arranged at an angle to the extension line of the mounting plate, the spray head and the water delivery pipe being detachably connected to the two ends of the connecting pipe respectively, the mounting plate being used to drive the rotation of the spray head.

2. The coal mining machine external spraying dust-settling device according to claim 1, characterized in that, The connecting seat comprises a fixed segment and a movable segment which are rotatably connected, the fixed segment being fixedly arranged on the fixing plate, the mounting plate being arranged on the movable segment, a first limiting member being slidably arranged on the fixed segment along the extension direction, the first limiting member being rotationally engaged with the fixed segment, the movable segment being provided with a first limiting portion, the first limiting portion having a locking position, in the locking position, the first limiting member is rotationally engaged with the first limiting portion.

3. The coal mining machine external spraying dust-settling device according to claim 2, characterized in that, The first limiting member is a limiting sleeve, a plurality of limiting tooth grooves being sequentially arranged on the inner wall of the limiting sleeve along the circumference, the first limiting portion being a plurality of limiting tooth racks sequentially arranged along the circumference of the movable segment, the limiting tooth racks and the limiting tooth grooves being one-to-one corresponding and size-fitting, in the locking position, the limiting sleeve is sleeved on the first limiting portion.

4. The coal mining machine external spraying dust-settling device according to claim 2, characterized in that, A first driving member is arranged between the first limiting member and the fixing plate, the first driving member being used to drive the first limiting member to move away from the fixing plate.

5. The coal mining machine external spray dust reduction device of claim 1, wherein, A second limiting member is arranged on the connecting seat, two connecting lugs being arranged on the connecting seat, a rotating shaft being arranged on the connecting lugs, a positioning disc being arranged on the side of the mounting plate close to the connecting seat, the second limiting member being movably arranged on the connecting lugs and being engaged with the positioning disc to fix the connecting seat.

6. The coal mining machine external spraying dust-settling device according to claim 5, characterized in that, The positioning disc and the rotating shaft are coaxially arranged, a plurality of first through holes being spaced along the circumference of the positioning disc, the distances from the first through holes to the rotating shaft being equal, a second through hole corresponding to the first through hole being arranged on the connecting lug, the second limiting member being inserted into the first through hole and the second through hole.

7. The coal mining machine external spray dust reduction device of claim 6, wherein, The second through hole corresponding to the first through hole has a plurality of second through holes, or a second driving member is arranged, the second driving member being connected with the second limiting member and the connecting lug and being used to drive the second limiting member to move towards the connecting lug.

8. The coal mining machine external spray dust suppression device of claim 1, wherein, A third limiting member is slidably arranged on the mounting plate, the third limiting member being provided with a limiting hole, in the working position, the spray head is inserted into the limiting hole.

9. The coal mining machine external spray dust suppression device of claim 8, wherein, A third driving member and a guide rod are arranged, the guide rod being arranged on the mounting plate, the third limiting member being slidably arranged on the guide rod, the third driving member being sleeved on the guide rod and being used to drive the third limiting member to move towards the spray head.

10. The coal mining machine external spray dust suppression device of claim 1, wherein, The mounting plate is provided with a avoiding slot corresponding to the connecting pipe, and the diameter of the circle corresponding to the avoiding slot is not less than the diameter of the connecting pipe.

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