A mine underground prying trolley

Abstract

The utility model relates to the technical field of mining prying car, specifically is a kind of mining underground prying car, including prying car body, two groups of adjusting mechanism box symmetrically installed in the both sides of the front part of car body, adjusting mechanism box is internally provided with lifting swing mechanism, the top of lifting swing mechanism is installed with dust-absorbing fan by fan mounting plate, dust-absorbing fan is driven under lifting swing mechanism, carries out rotary swing and height adjustment, and the dust around car body is absorbed, two sides dust-absorbing fan are jointly connected to communicating pipe by soft air pipe, and the bottom of communicating pipe is communicated with filter air pipe, and multiple filter screens are located in filter air pipe, and filter air pipe bottom is communicated with exhaust bin, and the both sides of exhaust bin are equipped with exhaust hole net.The utility model absorbs surrounding dust-containing gas by dust-absorbing fan, and clean air is discharged after multistage filtration, effectively reduces the dust concentration in operating environment, protects equipment and personnel safety, and simultaneously improves operating visual field definition.

Description

Technical Field

[0001] This utility model relates to the technical field of mining skid trolleys, specifically a mining underground skid trolley. Background Technology

[0002] The prying trolley is used in underground mining operations. After blasting, it is necessary to remove broken and unstable loose rocks from the roof and sides of the work site to ensure the safety of on-site personnel and equipment. Based on the use of handheld prying tools, the mine developed the prying trolley, realizing the mechanization of prying work.

[0003] The existing patent authorization number is CN218669352U, which discloses a mining underground scraping trolley, including a scraping trolley body. A central control plate is fixedly connected to the top of the top plate in the middle of the scraping trolley body. A vertical frame is fixedly connected to the top of the right side of the scraping trolley body. A top plate is fixedly connected to the top of the vertical frame. A servo motor is installed on the top of the top plate. A threaded rod is fixedly sleeved on the output shaft of the servo motor. This mining underground scraping trolley allows the scraper brush to be removed from the inside of the linkage frame and replaced with a clean scraper brush. The scraper brush is fixed inside the linkage frame with bolts. When the servo motor is started, it drives the threaded rod to move the linkage frame and scraper brush in a lifting motion. During the lifting and lowering of the scraper brush, dust is cleaned from the glass baffle inside the vertical frame. This improves the convenience of replacing the scraper brush and the efficiency of dust removal, and enhances the visibility environment of the scraping trolley during operation in the mine. Analysis of the plating trolley revealed that due to the working environment, a large amount of dust is generated around the trolley during operation. While cleaning the glass baffles can improve the workers' visibility, the increased dust makes simple cleaning of the glass baffles insufficient to guarantee a clear view in real time. Furthermore, excessive dust can damage some electronic components or mechanical connection structures of the plating trolley. To address this issue, this technical solution proposes a mining underground skid trolley that can solve the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a mining underground skid trolley to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A mining underground skid trolley includes two sets of adjustment mechanism boxes symmetrically installed on both sides of the front of the skid trolley body. The adjustment mechanism boxes are equipped with a lifting and swinging mechanism. A dust suction fan is installed on the top of the lifting and swinging mechanism through a fan mounting plate. Driven by the lifting and swinging mechanism, the dust suction fan rotates, swings, and adjusts its height to absorb dust around the skid trolley body. The two dust suction fans are connected to a set of connecting pipes through flexible air ducts. The bottom of the connecting pipe is connected to a filter air duct. The filter air duct performs multi-stage filtration on the input dust-laden gas. The bottom of the filter air duct is connected to an exhaust chamber. The exhaust chamber has exhaust holes on both sides, so that the dust-laden gas cleaned inside the filter air duct is discharged outward. This process is repeated to quickly remove dust from the dust-laden gas around the skid trolley body. The lifting and swinging mechanism includes a support rod connected to the bottom of the fan mounting plate. A spur gear is connected to the bottom of the support rod and placed inside the adjustment mechanism box. A hydraulic rod is connected to the bottom of the spur gear via a rotating component. A hydraulic cylinder, fixed inside the adjustment mechanism box, is connected to the bottom of the hydraulic rod. The hydraulic cylinder is activated to control the lifting and lowering of the hydraulic rod. Then, with the connection of the rotating component, the suction height of the spur gear, support rod, and the dust extraction fan on the fan mounting plate is adjusted. Simultaneously, a set of main drive spur gears is located on one side inside the adjustment mechanism box. The main drive spur gears mesh with the spur gear. The bottom center of the main drive spur gears is connected to an angle adjustment motor fixed inside the adjustment mechanism box via a connecting rod. Utilizing the meshing between the main drive spur gear and the spur gear, as well as the straight tooth groove structure of the spur gear and main drive spur gear, the angle adjustment motor controls the main drive spur gear to drive the spur gear to rotate, thereby adjusting the swing absorption angle of the dust extraction fan on the upper side of the fan mounting plate. Simultaneously, with the connection of the rotating component, the spur gear rotates relative to the hydraulic rod without affecting the hydraulic rod's adjustment of the spur gear height.

[0006] Compared with the prior art, the beneficial effects of this utility model are: by setting two sets of dust suction fans and cooperating with the lifting and swinging mechanism, the height and angle of the dust suction fans can be adjusted, thereby flexibly absorbing the dust around the body of the prying trolley. The gas is connected to a filter duct via a flexible duct, and multi-stage filters are used to filter dust-laden gas in stages, effectively removing dust particles of different sizes. The filtered clean gas is then discharged through the exhaust chamber.

[0007] This technical solution enables the active absorption and filtration of dust in the work environment, greatly reducing dust concentration, thereby ensuring a clear working field of vision, reducing damage to electronic devices and mechanical structures, and improving the health environment for workers. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of a mining underground skid trolley.

[0009] Figure 2 This is a schematic diagram of the main structure of a mining underground skid trolley.

[0010] Figure 3 for Figure 2 A magnified structural diagram of A in the diagram.

[0011] Figure 4 This is a schematic diagram of the dust collection bin in a mining underground skid trolley.

[0012] The components include: 10 (shaving trolley body), 11 (vacuum fan motor), 12 (adjustment mechanism box), 13 (angle adjustment motor), 14 (fan mounting plate), 15 (vacuum fan), 16 (exhaust pipe), 17 (flexible duct), 18 (connecting pipe), 19 (filter duct), 20 (filter screen), 21 (exhaust chamber), 22 (exhaust hole screen), 24 (hydraulic cylinder), 25 (hydraulic rod), 26 (spur gear), 27 (main drive spur gear), 28 (rotating groove column), and 29 (rotating column). Detailed Implementation

[0013] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0014] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] Please see Figures 1-4 A mining underground skid trolley includes two sets of adjustment mechanism boxes 12 symmetrically installed on both sides of the front of the skid trolley body 10. The adjustment mechanism box 12 is equipped with a lifting and swinging mechanism. The top of the lifting and swinging mechanism is equipped with a dust suction fan 15 through a fan mounting plate 14. Driven by the lifting and swinging mechanism, the dust suction fan 15 rotates and swings and adjusts its height to absorb dust around the skid trolley body 10. The two dust suction fans 15 are connected to a set of connecting pipes 18 through flexible air ducts 17. The bottom of the connecting pipes 18 is connected to a filter air duct 19. The filter air duct 19 performs multi-stage filtration of the input dust-laden gas. The bottom of the filter air duct 19 is connected to an exhaust chamber 21. The exhaust chamber 21 has exhaust holes 22 on both sides, so that the dust-laden gas after being cleaned inside the filter air duct 19 is discharged outward. This process is repeated to quickly remove dust from the dust-laden gas around the skid trolley body 10. The lifting and swinging mechanism includes a support rod connected to the bottom of the fan mounting plate 14. A spur gear 26, located inside the adjustment mechanism box 12, is connected to the bottom of the support rod. A hydraulic rod 25 is connected to the bottom of the spur gear 26 via a rotating component. A hydraulic cylinder 24, fixed inside the adjustment mechanism box 12, is connected to the bottom of the hydraulic rod 25. The hydraulic rod 25 is raised and lowered by activating the hydraulic cylinder 24. Then, with the rotating component in place, the suction height of the spur gear 26, the support rod, and the suction fan 15 on the fan mounting plate 14 is adjusted. Simultaneously, a set of main drive spur gears 27 is located on one side inside the adjustment mechanism box 12. Gear 27 meshes with spur gear 26. The bottom center of the main drive spur gear 27 is connected to an angle adjustment motor 13 fixed inside the adjustment mechanism box 12 via a connecting rod. By utilizing the meshing between the main drive spur gear 27 and the spur gear 26, as well as the straight tooth groove structure of the spur gear 26 and the main drive spur gear 27, the angle adjustment motor 13 controls the main drive spur gear 27 to drive the spur gear 26 to rotate, thereby adjusting the swing absorption angle of the dust suction fan 15 on the upper side of the fan mounting plate 14. At the same time, under the connection of the rotating parts, the spur gear 26 rotates relative to the hydraulic rod 25 without affecting the hydraulic rod 25's adjustment of the height of the spur gear 26. It should be noted that the range of height adjustment of the vacuum cleaner 15 by the hydraulic cylinder 24 is within the meshing height distance between the main drive spur gear 27 and the spur rack 26, that is, it depends on the axial length of the spur rack 26.

[0018] The flexible duct 17 is made of a flexible material, which gives it a certain degree of elasticity and allows it to swing, ensuring that the air blower 15 does not affect the transmission of air inside the flexible duct 17 when it swings or adjusts its height. The flexible duct 17 is usually made of rubber hose, thermoplastic polyurethane hose, silicone hose, etc. The specific choice depends on the actual situation, and will not be elaborated on or limited here.

[0019] In this embodiment of the invention, multiple sets of filter screens 20 with decreasing mesh diameters are arranged sequentially from top to bottom inside the filter duct 19. The gas entering along the connecting pipe 18 passes through the filter screens 20 to filter dust to different degrees, thereby reducing its dust content, and then is discharged to the outside through the exhaust chamber 21 and the exhaust hole screen 22. One end of the vacuum blower 15 is connected to the vacuum blower motor 11. The bottom of the vacuum blower motor 11 is fixed on the blower mounting plate 14. The end of the flexible air duct 17 away from the connecting pipe 18 is connected to the exhaust pipe 16 installed on the vacuum blower 15. The flexible air duct 17 and the exhaust pipe 16 are detachably connected, that is, a suitable length and type of flexible air duct 17 can be selected according to the transmission requirements. A silicone dust collector (not shown in the figure) is installed at the end of the exhaust pipe 16. By pinching the outlet of the dust collector, the dust can be easily discharged.

[0020] The rotating component includes a rotating column 29 mounted on the top of the hydraulic rod 25. A rotating groove column 28 is rotatably connected to the top of the rotating column 29. The top of the rotating groove column 28 is fixed to the bottom of the straight toothed rod 26. The vertical section of the rotating groove column 29 is set as T-shaped to keep the rotating column 29 axially limited and rotated within the rotating groove column 28.

[0021] In one embodiment of the present invention, the top of the adjusting mechanism box 12 is set to an open shape corresponding to the position of the straight toothed rod 26. That is, the opening is only used for the straight toothed rod 26 and the support rod to move up and down. At the same time, an elastic sealing ring is provided on the inner side of the opening to prevent external dust from entering and to not affect the up and down movement of the straight toothed rod 26 and the support rod. Meanwhile, in order to ensure that the dust collector 15 can continuously oscillate during operation, the angle adjustment motor 13 can be connected to the PLC control system. The control terminal of the PLC control system is set as an internal button in the cab and installed in an easily accessible position in the cab to facilitate the control of the lifting and oscillation of the adjustment mechanism box 12. At the same time, the angle adjustment motor 13 is set as a bidirectional servo motor, that is, through program settings, the angle adjustment motor 13 is controlled to rotate back and forth within a certain arc range, that is, to control the dust collector 15 to fully absorb and process the dust-laden gas around it. The dust extraction fan 15 generally adopts an explosion-proof centrifugal fan, which has an explosion-proof design, high wear resistance, and good sealing performance, and can effectively deal with complex underground mining environments.

[0022] In a preferred embodiment of the present invention, the filter screen 20 is configured from top to bottom as a coarse pre-filter screen, an electrostatic coalescing layer, and a high-efficiency main filter screen; Coarse pre-filter material: stainless steel woven mesh, mesh size: 1-5mm, used to intercept large particles of gravel, fibers and other debris, and protect the downstream filter media; or corrugated aluminum filter with anodized surface.

[0023] Electrostatic coalescing layer; Electrostatic coalescing filter screen: Material: Conductive metal fiber + electret coating Function: To charge 0.5-10μm dust particles and agglomerate them into clusters, making them easier to capture in the next stage.

[0024] High-efficiency main filter Material: Membrane-coated antistatic filter cartridge Substrate: Polyester fiber (PET) or glass fiber Surface treatment: ePTFE (expanded polytetrafluoroethylene) coating Features: 0.3μm filtration accuracy (captures respirable dust) Smooth surface, dust-free, supports pulse backflushing regeneration Nanofiber composite filter paper: A PA / PPS nanofiber layer (fiber diameter ≤ 0.5 μm) is sprayed onto a substrate.

[0025] The working principle of this utility model is as follows: In the idle position of this device, all the aforementioned driving components, referring to power elements, electrical components, and compatible power supplies, are connected via wires. The electrical connections are completed in sequence between the working components. The detailed connection methods are well-known in the field. The following mainly describes the working principle and process, without further explanation of the electrical control. During operation, the vacuum cleaner motor 11 is started, and the vacuum cleaner 15 begins to work, drawing in the surrounding dust-laden gas. This gas is then transported through the exhaust pipe 16 and the flexible duct 17 to the connecting pipe 18, and then enters the filter duct 19. Dust-laden gas passes sequentially through a coarse pre-filter, an electrostatic agglomeration layer, and a high-efficiency main filter. The dust is filtered step by step, and the clean gas enters the exhaust chamber 21 and is discharged through the exhaust port 22. At the same time, the height of the vacuum cleaner 15 can be adjusted by raising and lowering the hydraulic rod 25 controlled by the hydraulic cylinder 24. The main drive spur gear 27 is rotated by the angle adjustment motor 13, which drives the spur gear 26 to rotate, thereby adjusting the swing angle of the vacuum cleaner 15. The PLC control system can set the angle adjustment motor 13 to swing repeatedly within a certain angle range, so that the vacuum cleaner 15 can cover a wider area and improve the dust collection effect.

[0026] It should be understood that in this application, all rotating, sliding, meshing, belt-driven and other moving parts are well lubricated and not prone to slippage or wear, and each part is provided with a corresponding protective shell. However, in the accompanying drawings of this application, the connection state of each moving part is not shown. It should also be understood that all parts in this application are made of metal or plastic materials with suitable strength in the relevant field to ensure that their structural rigidity meets the actual requirements.

[0027] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A mining underground skid trolley, characterized in that, The device includes a prying trolley body (10), characterized in that it also includes two sets of adjustment mechanism boxes (12) symmetrically installed on both sides of the front of the prying trolley body (10). The adjustment mechanism box (12) is provided with a lifting swing mechanism. The top of the lifting swing mechanism is equipped with a dust suction fan (15) through a fan mounting plate (14). The dust suction fan (15) rotates and swings and adjusts its height under the drive of the lifting swing mechanism. The dust suction fans (15) on both sides are connected by a set of connecting pipes (18) through a soft air duct (17). The bottom of the connecting pipe (18) is connected to a filter air duct (19). The filter air duct (19) is provided with a multi-stage filter screen (20). The bottom of the filter air duct (19) is connected to an exhaust chamber (21). The exhaust chamber (21) has exhaust holes (22) on both sides.

2. The mining underground skid trolley according to claim 1, characterized in that, The lifting and swinging mechanism includes a support rod connected to the bottom of the fan mounting plate (14), and a straight toothed rod (26) placed inside the adjustment mechanism box (12) is connected to the bottom of the support rod. The bottom end of the straight toothed rod (26) is connected to a hydraulic rod (25) through a rotating part. The bottom end of the hydraulic rod (25) is connected to a hydraulic cylinder (24) fixed inside the adjustment mechanism box (12). A set of main drive spur gears (27) is provided on one side inside the adjustment mechanism box (12). The main drive spur gears (27) mesh with the spur rack (26). The bottom center of the main drive spur gears (27) is connected to an angle adjustment motor (13) fixed inside the adjustment mechanism box (12) via a connecting rod.

3. A mining underground skid trolley according to claim 2, characterized in that, The rotating component includes a rotating column (29) mounted on the top of a hydraulic rod (25), and a rotating groove column (28) is rotatably connected to the top of the rotating column (29). The top of the rotating groove column (28) is fixed to the bottom of a straight toothed rod (26).

4. A mining underground skid trolley according to claim 1, characterized in that, The filter duct (19) is provided with multiple levels of filter screens (20) with decreasing mesh diameter from top to bottom, including a coarse pre-filter, an electrostatic coalescing layer and a high-efficiency main filter.

5. A mining underground skid trolley according to claim 1, characterized in that, One end of the vacuum blower (15) is connected to a vacuum blower motor (11), the bottom of the vacuum blower motor (11) is fixed on the blower mounting plate (14), the end of the flexible air duct (17) away from the connecting pipe (18) is connected to an exhaust pipe (16) installed on the vacuum blower (15), and a silicone dust collector is installed at the end of the exhaust pipe (16).

6. A mining underground skid trolley according to claim 2, characterized in that, The top of the adjustment mechanism box (12) is set in an open shape corresponding to the position of the straight toothed rod (26), and an elastic sealing ring is provided on the inner side of the opening.

7. A mining underground skid trolley according to claim 2, characterized in that, The angle adjustment motor (13) is a bidirectional servo motor and is connected to the PLC control system to control the dust collector (15) to swing back and forth within a certain arc range. The control terminal of the PLC control system is set as an internal button in the cab and is installed in a position in the cab that is easy to operate.

8. A mining underground skid trolley according to claim 1, characterized in that, The dust extraction fan (15) is an explosion-proof centrifugal fan.

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