Cleaning device special for coal mine main fan

Abstract

The invention relates to the field of coal mine construction, in particular to a special cleaning device for a main fan of a coal mine, which comprises an axial flow fan body and further comprises a circular frame body arranged on the axial flow fan body, a driving mechanism arranged on the surface of the circular frame body, and a correcting mechanism arranged in the circular frame body and used for positioning fan blades of the axial flow fan in a working state. The synchronizing mechanism comprises a rotating disc arranged in the circular frame body, the rotating disc is matched with the driving mechanism to rotate and work, a plurality of sets of slope notches are formed with the rotating disc as the axis, and the movable assemblies are arranged in the slope notches and move in a matched mode based on the rotating angle of the rotating disc. When the circular frame body and the axial flow fan body are closed, the orientation block makes contact with the gap between the two fan blades, the fan blades are rapidly positioned, due to the fact that the two fan blades are positioned, the other fan blades cannot be influenced by the connecting axis of the fan blades to rotate, and therefore the effect of limiting the fan blades is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of coal mine construction, in particular to a special cleaning device for a coal mine main fan. BACKGROUND

[0002] The coal mine main fan is the core equipment of the coal mine ventilation system, also known as the main ventilation fan or the main fan, and its core function is to ensure the air circulation in the mine by continuously providing stable air volume and air pressure, and to dilute and discharge harmful gases such as gas and dust.

[0003] The fan for coal mine is mainly a mine axial flow fan, and the inside of the fan is mostly eight fan blades. Due to the execution of the limiting speed, the blades are symmetrically and obliquely distributed, and are more likely to vibrate simultaneously to cause resonance during work. Through special design, the noise is smaller than that of ordinary fans, the ventilation efficiency is higher, and the angle of the eight blades connected to the shaft center is thirty to thirty-five degrees, which can balance the high air pressure and dust penetration ability. At the same time, the fan blades will thicken and be hardened in special circumstances to resist coal dust erosion.

[0004] The above scheme better solves the problem of coal mine ventilation, but in the actual operation process, the fan blades are in the center of the air duct, and the surface is easy to be attached with various impurities due to static electricity generated by high-speed rotation. The surface of the shaft connected to the fan blades is also easy to be attached with impurities, and the oil in the coal mine is easy to form sticky impurities on the surface. It is difficult to clean, and at the same time, due to the oblique setting of the multiple fan blades at a set angle, the fan blades near the center of the rotating shaft have overlapping areas (as shown in the figure), which further increases the difficulty of cleaning. The flushing or brushing in the prior art is difficult to clean quickly, which is time-consuming and labor-consuming, and there is certain inconvenience. Figure 1 SUMMARY

[0005] In view of the above or the problem that the fan blades rotate and the overlapping part of the fan blades is difficult for personnel to clean during cleaning in the prior art, the present application is proposed.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a special cleaning device for a coal mine main fan, comprising an axial flow fan body, further comprising a circular frame body arranged on the axial flow fan body, a driving mechanism arranged on the surface of the circular frame body, and a correction mechanism arranged inside the circular frame body. In the working state, the fan blades of the axial flow fan are positioned and synchronized. The synchronous mechanism comprises a rotating disc arranged inside the circular frame body and cooperating with the driving mechanism to rotate. The rotating disc has a plurality of inclined grooves as the shaft, and an active assembly is arranged in the inclined groove and moves in cooperation with the rotating angle of the rotating disc. A cleaning mechanism is arranged at the end of the active assembly and performs cleaning operation based on the shaft of the circular frame body close to or away from the fan blades. An auxiliary mechanism is arranged inside the circular frame body and below the rotating disc, and cooperates with the cleaning mechanism to do cleaning work. ​

[0007] As a preferred scheme of the special cleaning device for the main fan of the coal mine, wherein: the correcting mechanism comprises a fixed plate arranged inside the circular frame, an extension rod arranged inside the fixed plate, a spring one arranged inside the extension rod, and a directional block arranged at the end of the extension rod.

[0008] As a preferred scheme of the special cleaning device for the main fan of the coal mine, wherein: the movable assembly comprises a fixed rod arranged inside the inclined groove, and a top rod arranged at the other end of the fixed rod.

[0009] As a preferred scheme of the special cleaning device for the main fan of the coal mine, wherein: the cleaning mechanism comprises a moving block arranged at the end of the fixed rod, a plurality of brush groups arranged on the surface of the moving block, and an atomizing nozzle arranged inside the moving block.

[0010] As a preferred scheme of the special cleaning device for the main fan of the coal mine, wherein: the auxiliary mechanism comprises a circumferential disc arranged inside the circular frame, a plurality of limiting grooves are arranged inside the circumferential disc with the circular frame as the axis, and a plurality of empty barrels are arranged on the surface of the circumferential disc and at the edge of the limiting grooves.

[0011] As a preferred scheme of the special cleaning device for the main fan of the coal mine, wherein: a plurality of sleeves are arranged on the surface of the circular frame below the circumferential disc, and a spring two is arranged inside the sleeve.

[0012] As a preferred scheme of the special cleaning device for the main fan of the coal mine, wherein: the number of the inclined grooves, the fixed rod, the top rod, and the moving block is eight.

[0013] As a preferred scheme of the special cleaning device for the main fan of the coal mine, wherein: the limiting grooves are used to prevent the moving block from deviating when moving towards the axis of the circular frame.

[0014] As a preferred scheme of the special cleaning device for the main fan of the coal mine, wherein: the moving block is a hollow structure, and a liquid guide pipe is installed inside the moving block away from the axis of the circular frame.

[0015] As a preferred scheme of the special cleaning device for the main fan of the coal mine, wherein: the moving block and the brush are both made of flexible material, and the brush is arranged obliquely.

[0016] The coal mine main fan special cleaning device has the beneficial effects that: through the setting of the correction mechanism and the circular frame body, when the circular frame body is connected with the axial flow fan body, the directional block contacts the gap between the two blades to quickly position the blades, since the two blades are positioned, the remaining blades will not be affected by the connecting shaft of the blades to rotate, so that the limiting effect of the blades is achieved;

[0017] Further, after the blades are limited by the directional block, the stretching rod is extruded and moves the blades towards the synchronous mechanism, producing a secondary calibration effect. The rotating disc drives the moving block to approach or move away from the blades. The angle of the brush is matched with the angle of the blade, so that one side of the blade is cleaned, and the other side is cleaned by another group of brushes. At the same time, the atomizing nozzle intermittently sprays cleaning liquid on both sides of the blade, which enhances the cleaning effect of the brush, so that the surface of the blade and the connection between the blade and the shaft are better cleaned, the corrosion degree is reduced, and the service life of the axial flow fan blade is prolonged.

[0018] Further, through the setting of the auxiliary mechanism, while the cleaning mechanism cleans the blades, the surface of the brush will be affected by too much oil and water during the cleaning work. When the moving block moves away from the blade, the brush will be retracted into the hollow cylinder to produce extrusion force and clean the surface of the brush. Then the brush cleans the surface of the blade again, which enhances the cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is a connection relationship diagram of a coal mine main fan special cleaning device and an axial flow fan body.

[0021] Figure 2 It is a partial disassembly diagram of a coal mine main fan special cleaning device.

[0022] Figure 3 It is a correction mechanism isolated diagram of a coal mine main fan special cleaning device.

[0023] Figure 4 It is a synchronous mechanism disassembly diagram of a coal mine main fan special cleaning device.

[0024] Figure 5 It is a circular frame body internal section diagram of a coal mine main fan special cleaning device.

[0025] Figure 6 It is a kind of coal mine main fan special cleaning device removes the mechanism schematic view.

[0026] Figure 7 It is a kind of coal mine main fan special cleaning device disassembly section view schematic.

[0027] In the figure: 100, axial flow fan body;200, circular frame;300, drive mechanism;400, correction mechanism;401, fixed plate;402, telescopic rod;403, directional block;500, synchronization mechanism;501, rotating disc;502, inclined slot;510, fixed rod;511, ejector rod;600, cleaning mechanism;601, moving block;602, brush;603, atomizing nozzle;700, auxiliary mechanism;701, circumferential disc;702, empty cylinder. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0029] Reference Figures 1-7 A kind of coal mine main fan special cleaning device, including axial flow fan body 100, still include, circular frame 200, it is set on axial flow fan body 100, drive mechanism 300 is set on the surface of circular frame 200, correction mechanism 400 is set in the inside of circular frame 200, in working condition, for positioning axial flow fan blade, synchronization mechanism 500 includes rotating disc 501 being set in the inside of circular frame 200, cooperation drive mechanism 300 carries out rotating work, with rotating disc 501 as the axis, be equipped with several groups of inclined slot 502, movable assembly, it is set in the inside of inclined slot 502, based on rotating angle of rotating disc 501 cooperation movement, cleaning mechanism 600, it is set in the end of movable assembly, based on the cleaning operation of the axis of circular frame 200 close to or far from blade, auxiliary mechanism 700, it is set in the inside of circular frame 200 and is located below rotating disc 501, cooperation cleaning mechanism 600 does cleaning work.

[0030] During use, drive mechanism 300 is drive motor or other driving device, the output end of drive motor is fixedly connected with gear, when drive mechanism 300 works, gear will work, gear is engaged with rotating disc 501, the surface of rotating disc 501 is equipped with gear slot, rotating disc 501 is driven by drive mechanism 300 to operate clockwise and counterclockwise.

[0031] Reference Figure 3The correcting mechanism 400 comprises a fixed plate 401 arranged inside the circular frame 200, an extension rod 402 arranged inside the fixed plate 401, a spring I arranged inside the extension rod 402, and a directional block 403 arranged at the end of the extension rod 402. The directional block 403 is provided with a chamfer close to the axial flow fan body 100, and is triangular when viewed from the axial flow fan body 100 towards the directional block 403. The chamfer is used to quickly contact the fan blades when the two fan blades contact the directional block 403, and does not damage the fan blades. When the fan blades are coated with protective paint, the directional block 403 is made of rubber.

[0032] During use, the directional block 403 quickly contacts the gap between the two fan blades to position the fan blades. As the fan blades are further compressed, the extension rod 402 retracts, and the directional block 403 drives the fan blades along the retraction track towards the rotating disc 501, ensuring that the fan blades can cooperate with the cleaning mechanism 600 for brushing. When the fan blades move away from the directional block 403, the extension rod 402 is reset by the spring I.

[0033] The movable assembly comprises a fixed rod 510 arranged inside the inclined groove 502, and a top rod 511 arranged at the other end of the fixed rod 510.

[0034] The cleaning mechanism 600 comprises a moving block 601 arranged at the end of the fixed rod 510, a plurality of brushes 602 arranged on the surface of the moving block 601, and an atomizing nozzle 603 arranged inside the moving block 601. The moving block 601 moves towards or away from the shaft center of the rotating disc 501 through the movement of the fixed rod 510, and the brushes 602 clean the surface of the fan blades and the shaft connection part connected to the fan blades. When the moving block 601 moves towards the shaft center, the atomizing nozzle 603 sprays once, and then the moving block 601 moves away from each other for brushing the fan blades. At this time, the atomizing nozzle 603 does not work. When the moving block 601 moves towards each other again, the atomizing nozzle 603 sprays again. The atomizing nozzle 603 is at the front end of the moving block 601, and then the brushes 602 clean after spraying.

[0035] The auxiliary mechanism 700 comprises a circumferential disc 701 arranged inside the circular frame 200, a plurality of limiting grooves arranged inside the circumferential disc 701 with the circular frame 200 as the shaft center, a plurality of empty barrels 702 arranged on the surface of the circumferential disc 701 and at the edge of the limiting grooves, and the number of limiting grooves corresponds to the number of moving blocks 601. When the moving blocks 601 work, they are limited to prevent deviation of the moving blocks 601.

[0036] During use, the inside of the empty cylinder 702 can be provided with annular sponge, when the moving block 601 moves towards the inside of the empty cylinder 702, the brushes 602 are received into the inside of the empty cylinder 702, the brushes 602 are pressed close to each other to scrape off the sewage and impurities, the angle of the brushes 602 is greater than or equal to the angle of the fan blade inclination (i.e. the angle of the fan blade inclination setting).

[0037] A plurality of sets of sleeves are arranged below the circumferential disc body 701 on the surface of the circular frame body 200, the inside of the sleeve is provided with spring two.

[0038] When the circular frame body 200 is closed and opened, the sleeve prevents the person from accidentally touching the circular frame body 200.

[0039] The bevel groove 502, the fixed rod 510, the top rod 511 and the moving block 601 are eight sets.

[0040] During use, the inside of the fan is mostly eight fan blades, so the bevel groove 502, the fixed rod 510, the top rod 511 and the moving block 601 correspond to the number of fan blades.

[0041] The limiting groove is used to prevent the moving block 601 from deviating when moving towards the axis direction of the circular frame body 200.

[0042] The inside of the moving block 601 is a hollow structure, and a liquid guide pipe is installed in the inside of the moving block 601 away from the axis direction of the circular frame body 200.

[0043] During use, the liquid guide pipe in the inside of the moving block 601 is connected to an external pressure device, the cleaning liquid is connected to the inside of the liquid guide pipe, and then sprayed out by the atomizing nozzle 603.

[0044] The moving block 601 and the brush 602 are both flexible materials, and the brush 602 is inclined.

[0045] When the fan blade of the axial flow fan body 100 is dirty due to environmental reasons, the circular frame body 200 hinged to the axial flow fan body 100 is buckled at the axial flow fan body 100, and when not in use, the circular frame body 200 is pulled open to avoid affecting the ventilation effect of the axial flow fan body 100.

[0046] When the axis of the circular frame 200 gradually approaches the axis of the axial flow fan body 100, the directional block 403 on the correction mechanism 400 touches the gap between the two leaves inside the axial flow fan body 100, limiting and positioning the leaves to avoid rotation deviation. Then each leaf is corrected to fit the cleaning mechanism 600. Then the driving mechanism 300 starts to work, driving the rotating disc 501 to work, which drives the fixed rod 510 to work. The top rod 511 limits the fixed rod 510. When the inclined groove 502 rotates with the rotating disc 501, the internal fixed rod 510 drives each moving block 601 to move towards the axis of the rotating disc 501. At the same time, the cleaning liquid is sprayed through the atomizing nozzle 603 to the leaves and the leaf axis inside the axial flow fan body 100. Then the brush 602 follows the trajectory of the atomizing nozzle 603 to clean synchronously, cleaning the fan, the leaf axis, and the bolt connection. When each moving block 601 moves to the maximum stroke, the driving mechanism 300 drives in the opposite direction, driving the rotating disc 501 to rotate in the opposite direction. Each moving block 601 moves away from each other. At this time, the atomizing nozzle 603 stops spraying, and the brush 602 is stored in the empty cylinder 702 for cleaning. Then the driving mechanism 300 drives the moving block 601 to move close to each other again to clean the inside of the axial flow fan body 100. When the cleaning work is completed, the staff tilts the axial flow fan body 100 to approach the ground position. Then pull open the circular frame 200 to open the axial flow fan body 100 for rotation, and dry the remaining moisture inside the device by air.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, which should be covered by the claims of the present application.

Claims

1. A special cleaning device for a main fan of a coal mine, comprising an axial flow fan body (100), characterized in that: Also includes: A circular frame (200) is arranged on the axial flow fan body (100); Drive mechanism (300) is arranged on the surface of the circular frame (200); Correcting mechanism (400) is arranged inside the circular frame (200), in working state, for positioning the axial flow fan blade; Synchronization mechanism (500) is arranged on the circular frame (200), which includes a rotating disc (501) arranged inside the circular frame (200), which rotates with the drive mechanism (300) to rotate the disc (501) as the axis, and a plurality of groups of inclined slots (502) are opened; The number of movable components corresponding to the inclined slots (502) is arranged in the corresponding inclined slots (502), and moves based on the rotating angle of the rotating disc (501); The cleaning mechanism (600) is arranged at the end of the movable component, and the cleaning operation is performed based on the circular frame (200) axis close to or away from the blade; The auxiliary mechanism (700) is arranged inside the circular frame (200) and below the rotating disc (501), and cooperates with the cleaning mechanism (600) to clean.

2. A cleaning device for a coal mine main fan as claimed in claim 1, characterized in that: The correcting mechanism (400) includes a fixed plate (401) arranged inside the circular frame (200), a telescopic rod (402) arranged inside the fixed plate (401), a spring one arranged inside the telescopic rod (402), and a directional block (403) arranged at the end of the telescopic rod (402).

3. A cleaning device for a coal mine main fan as claimed in claim 2, characterized in that: The movable component includes a fixed rod (510) arranged inside the inclined slot (502), and the other end of the fixed rod (510) is provided with a top rod (511).

4. A cleaning device for a coal mine main fan as claimed in claim 3, characterized in that: The cleaning mechanism (600) includes a moving block (601) arranged at the end of the fixed rod (510), a plurality of groups of brushes (602) arranged on the surface of the moving block (601), and an atomizing nozzle (603) arranged inside the moving block (601).

5. A cleaning device for a coal mine main fan as claimed in claim 4, characterized in that: The auxiliary mechanism (700) includes a circular disc (701) arranged inside the circular frame (200), and a plurality of groups of limiting slots are opened inside the circular disc (701) with the circular frame (200) as the axis, and a plurality of groups of empty barrels (702) are arranged on the surface of the circular disc (701) and at the edge of the limiting slot.

6. A cleaning device for a coal mine main fan as claimed in claim 5, characterized in that: A plurality of sleeves are arranged below the circular disc (701) on the surface of the circular frame (200), and a spring two is arranged inside the sleeve.

7. A cleaning device for a coal mine main fan as claimed in claim 6, characterised in that: The number of inclined slots (502), fixed rods (510), top rods (511) and moving blocks (601) is eight groups.

8. A cleaning device for a coal mine main fan as claimed in claim 7, characterized in that: The limiting slot is used to prevent the moving block (601) from moving to the axis direction of the circular frame (200).

9. A cleaning device for a coal mine main fan as claimed in claim 8, characterized in that: The moving block (601) is a hollow structure, and a liquid guide pipe is installed inside the moving block (601) away from the axis direction of the circular frame (200).

10. A cleaning device for a coal mine main fan as claimed in claim 9, characterised in that: The moving block (601) and the brush (602) are made of flexible material, and the brush (602) is arranged obliquely.

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