Underground fan protection device

Abstract

The utility model provides an underground fan protection device which comprises a protection net rack, a filter net rack, an upper walking mechanism, a lower walking mechanism, an upper guide rail and a lower guide rail, wherein the upper walking mechanism and the lower walking mechanism are respectively arranged at the upper end and the lower end of the protection net rack; the protective net rack is arranged in the upper guide rail and the lower guide rail through the upper walking mechanism and the lower walking mechanism respectively and has the freedom degree of walking along the upper guide rail and the lower guide rail. The filter screen frame is hung on the protective screen frame through a hanging mechanism and located at the same horizontal height as the draught fan. According to the technical scheme, the time for workers to disassemble and assemble the protective net can be shortened to be within half a minute from 20 minutes, the time for controlling a fan to stop due to disassembly and assembly of the protective net is greatly shortened, the filter net frame can be quickly disassembled and assembled from the protective net frame without stopping, cleaning and maintenance are easy, and the working efficiency is improved. And potential safety hazards caused by overlong shutdown time of the fan are greatly reduced, and the safety of shutdown maintenance of the fan in the roadway is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mine fan device technical field relates to a fan protection device, especially for a downhole fan protection device. BACKGROUND

[0002] Downhole fan is generally fixed on the wall body of roadway end, is used for the protection net of downhole main fan, generally is using the wire binding connection screen, the screen is connected with the size greater than the installation fan hole, then it is covered in the hole of installation fan, with the electric welding is welded fixedly around the hole around, thereby isolating the fan, avoids the person or thing being hurt by the fan by mistake. When needing to oil maintenance or the motor appears the breakdown of main fan motor and needs to replace, need to dismount the screen, then carry out maintenance work, dismount, install all are very inconvenient, operation time is long. But, main fan is easy to cause the accident in mine for a long time stop, therefore needs to explore the new protection net fixed mode.

[0003] In addition, main fan is easy to suck the light quality sundries in the roadway into the fan, if the sundries volume is big, then easy to wind or damage the blade, influence the normal work of main fan. The existing some fan protection device is improved on the fan main body, needs to stop the fan to clean up or replace the filter screen after operating for a period of time, this will influence the ventilation of roadway and cause the security risk

[0004] Based on this, it is necessary to provide a protection device which can reduce the operation amount and operation time of workers opening the protection net, can effectively filter the light quality sundries in the roadway, can be easily cleaned, can reduce the downtime of main fan, and can reduce the security risk in mine. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a downhole fan protection device, to solve the technical problem that the fan protection net is not easy to open, the filter mechanism needs to be dismounted and cleaned, and the fan needs to be stopped, which influences the ventilation of the roadway.

[0006] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows:

[0007] A downhole fan protection device, which comprises a protection net frame, a filter net frame, an upper walking mechanism and a lower walking mechanism arranged at the upper and lower ends of the protection net frame respectively, an upper guide rail and a lower guide rail arranged horizontally along the width direction of the roadway at the upper and lower ends of the fan respectively, the protection net frame is arranged in the upper guide rail and the lower guide rail through the upper walking mechanism and the lower walking mechanism, and has the freedom of walking along the upper guide rail and the lower guide rail, and the filter net frame is hung on the protection net frame through a hanging mechanism and is at the same horizontal height as the fan.

[0008] The suspension mechanism comprises a hook and a magnetic sheet, the hook is arranged at the upper end of the filter screen frame near the protective screen frame, and the number of the hook is one or more than one, and the magnetic sheet is arranged at the lower end of the filter screen frame near the protective screen frame, and the number of the magnetic sheet is one or more than one.

[0009] The middle part of the protective screen frame is welded with horizontal suspension rods, the number of the suspension rods is two, and the suspension rods are located at the horizontal height of the upper end and the lower end of the fan respectively, and the filter screen frame is hung on the suspension rods through the suspension mechanism.

[0010] The upper walking mechanism comprises walking wheels A, and the number of the walking wheels A is two, and the walking wheels A are arranged at the upper end of the left and right sides of the protective screen frame respectively.

[0011] The lower walking mechanism comprises walking wheels B, and the number of the walking wheels B is two, and the walking wheels B are arranged at the lower end of the left and right sides of the protective screen frame respectively.

[0012] The utility model also comprises locking pins and locking holes, the locking holes are arranged on the roadway end face and located at the left side or the right side of the fan, and the locking pins are arranged on the protective screen frame through the suspension chain and correspond to the locking holes.

[0013] The utility model discloses a kind of underground fan protection devices, by being respectively horizontally laid upper rail and lower rail along the length of roadway end face on roadway end face, then setting the upper walking mechanism and the lower walking mechanism matched with upper rail and lower rail on protective screen frame, it can shield fan by pushing protective screen frame before fan starts, to play the role of protection, when needing to stop oiling or fan maintenance when fan fails, only need to push protective screen frame to fan side along upper rail and lower rail.

[0014] In addition, the utility model also sets up filter screen frame on protective screen frame, and hangs filter screen frame on protective screen frame by suspension mechanism, and uses the mesh of suspension mechanism, protective screen frame and suspension rod to limit filter screen frame, which is convenient to disassemble and assemble, and can effectively filter the airflow entering the fan, to avoid that the lighter sundries in the roadway are sucked into the fan, causing damage to the fan blades or main shaft.

[0015] The technical scheme provided by the utility model can shorten the time of worker disassembling and assembling protective screen from 20 minutes to within half a minute, greatly reduce the time of stopping fan due to disassembling and assembling protective screen, and the filter screen frame can be quickly disassembled and assembled from protective screen frame without stopping, so that the safety hidden danger caused by too long stopping time of fan is greatly reduced, and the safety of stopping and maintaining fan in the roadway is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of the main body structure of the utility model;

[0017] Figure 2 is Figure 1 is a schematic view of the main body structure of the utility model;

[0018] Figure 3 is a simplified structure side view of the filter net rack of the utility model.

[0019] Marked in the figure: 1, roadway end face, 2, protective net rack, 3, filter net rack, 4, upper guide rail, 5, lower guide rail, 6, upper walking mechanism, 7, lower walking mechanism, 8, hook, 9, magnetic suction piece, 10, suspension rod, 11, locking pin, 12, locking hole, 13, suspension chain, 14, fan. DETAILED DESCRIPTION

[0020] In order to better understand the purpose, structure and function of the utility model, the utility model will be described in further detail below in combination with the drawings.

[0021] As Figure 1 , Figure 2 shown, the utility model provides a kind of underground fan protective device, it is applied in the roadway scene where the width of roadway end face is more than twice the width of fan, it includes the protective net rack 2 for isolating fan 14, the filter net rack 3 for filtering the airflow into fan 14, upper walking mechanism 6 and lower walking mechanism 7 respectively being arranged at the upper and lower ends of protective net rack 2, upper guide rail 4 and lower guide rail 5 are arranged at the upper and lower ends of fan 14 along the width direction of roadway, and protective net rack 2 is arranged in upper guide rail 4 and lower guide rail 5 respectively by upper walking mechanism 6 and lower walking mechanism 7, with the freedom degree of walking along upper guide rail 4 and lower guide rail 5;Filter net rack 3 is hung on the protective net rack 2 by suspension mechanism and is located at the same horizontal height with fan 14.Therein, protective net rack 2 is the structure that protective net and frame body A are welded as a whole, and filter net rack 3 is the structure that filter net and frame body B are welded as a whole.

[0022] Further, as Figure 2 , Figure 3 shown, the suspension mechanism in the embodiment includes hook 8 and magnetic suction piece 9, wherein hook 8 is arranged at the upper end of the side of filter net rack 3 close to protective net rack 2, and the number is one or more than one, preferably two;Magnetic suction piece 9 is arranged at the lower end of the side of filter net rack 3 close to protective net rack 2, and the number is one or more than one, preferably three.Filter net rack 3 is hung on protective net rack 2 by hook 8 at upper end, and then positioned by magnetic attraction with protective net rack 2 by magnetic suction piece 9 at lower end, so that it can be moved to the front of fan 14 or out of the area of fan 14 with protective net rack 2.

[0023] In order to reduce the stress of the protective net on the protective net frame 2 and improve the stability of the filter net frame 3 suspended on the protective net frame 2, as shown in the embodiment, horizontal suspension rods 10 are welded on the middle part of the protective net frame 2, the number of the suspension rods 10 is two, and the suspension rods 10 are located at the horizontal height of the upper end and the lower end of the fan 14, respectively, the upper end of the filter net frame 3 is suspended on the suspension rod 10 at the upper end of the fan 14 through the hook 8, and the lower end is fixed with the suspension rod 10 at the lower end of the fan 14 through the magnetic suction piece 9. Figure 2

[0024] In addition, in order to avoid unnecessary displacement of the protective net frame 2 during the operation of the fan 14, the locking hole 12 is arranged on the roadway end face 1 in the embodiment, and the locking pin 11 which can be inserted into the locking hole 12 is arranged on the protective net frame 2. The locking hole 12 is located on the left side or the right side of the fan 14, and in the embodiment, it is located on the left side, and the locking pin 11 is arranged on the left side of the frame body of the protective net frame 2 through the suspension chain 13 and corresponds to the locking hole 12. When the protective net frame 2 is pushed to the front of the fan 14, the locking pin 11 is inserted into the locking hole 12 to effectively limit the protective net frame 2. When it is needed to remove the protective net frame 2, the locking pin 11 can be pulled out after the fan 14 is stopped.

[0025] Further, the upper walking mechanism 6 in the embodiment includes walking wheels A, the number of the walking wheels A is two, and the walking wheels A are arranged at the upper ends of the left and right sides of the protective net frame 2, respectively; the lower walking mechanism 7 includes walking wheels B, the number of the walking wheels B is two, and the walking wheels B are arranged at the lower ends of the left and right sides of the protective net frame 2, respectively.

[0026] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.​

Claims

1. A downhole fan guard, characterized by: It includes protective net frame (2), filter net frame (3), respectively set up in the upper and lower ends of protective net frame (2) upper walking mechanism (6) and lower walking mechanism (7), the upper and lower ends of fan (14) are arranged in the width direction of roadway upper guide rail (4) and lower guide rail (5), the protective net frame (2) is arranged in the upper guide rail (4) and the lower guide rail (5) through the upper walking mechanism (6) and the lower walking mechanism (7), has the freedom of walking along the upper guide rail (4) and the lower guide rail (5);The filter net frame (3) is hung on the protective net frame (2) through the suspension mechanism, which is located at the same horizontal height with the fan (14).

2. A downhole fan guard according to claim 1, characterised in that: The suspension mechanism includes a hook (8) and a magnetic sheet (9), the hook (8) is arranged on the upper end of the filter net frame (3) near the protective net frame (2), the number is one or more than one, the magnetic sheet (9) is arranged on the lower end of the filter net frame (3) near the protective net frame (2), the number is one or more than one.

3. A downhole fan guard according to claim 1, characterised in that: The middle part of the protective net frame (2) is welded with horizontal suspension rod (10), respectively, the number of suspension rod (10) is two, respectively located at the upper end and the lower end of the fan (14) horizontal height, the filter net frame (3) is hung on the suspension rod (10) through the suspension mechanism.

4. A downhole fan guard according to claim 1, characterised in that: The upper walking mechanism (6) includes walking wheel A, the number of walking wheel A is two, respectively arranged on the upper end of the left and right sides of protective net frame (2).

5. A downhole fan guard according to claim 1, characterised in that: The lower walking mechanism (7) includes walking wheel B, the number of walking wheel B is two, respectively arranged on the lower end of the left and right sides of protective net frame (2).

6. A downhole fan guard according to claim 1, characterised in that: It also includes locking pin (11) and locking hole (12), the locking hole (12) is arranged on the roadway end face (1), located on the left side or the right side of the fan (14), the locking pin (11) is arranged on the protective net frame (2) through the suspension chain (13), corresponding to the locking hole (12).

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