Lifting device for coal mine material transportation

Abstract

The invention discloses a lifting device for coal mine material transportation, which comprises a skip car, a lifting assembly, two first fixing devices, a second fixing device and a driving device, the lifting assembly is arranged in a mine, the skip car is arranged on the lifting assembly, and the two first fixing devices and the second fixing device are respectively arranged on the lifting assembly. The lifting assembly and the driving device are connected, the lifting assembly comprises a supporting assembly, the driving device comprises a rotating shaft, a shaft body of the rotating shaft is sleeved with a first bevel gear and two second bevel gears, the first fixing device comprises a first adjusting assembly and a first fixing assembly, and the first adjusting assembly is connected with the corresponding second bevel gear in an engaged mode. The second fixing device comprises a second adjusting assembly and a second fixing assembly, and the second adjusting assembly is connected with the first bevel gear in an engaged mode. Therefore, the skip car can be effectively prevented from sliding or shaking in the box body, and the dynamic stability of the skip car is improved, so that the material loss and the probability of secondary disasters are effectively reduced.

Description

Technical Field

[0001] This application relates to the technical field of coal mine material transportation, and particularly to a lifting device for coal mine material transportation. Background Art

[0002] Coal mining is generally divided into underground coal mines and surface coal mines. When the coal seam is far from the surface, it is generally chosen to dig roadways underground to extract coal, which is an underground coal mine. The exploitation of underground coal mines is an important way to obtain coal resources. During the exploitation of underground coal mines, materials need to be transported, and the stability of its material transportation system directly affects the mining efficiency and operation safety. In the traditional underground coal mine transportation system, the lifting component mainly realizes the vertical lifting of materials through transmission mechanisms such as electric or pneumatic winches and steel cables. When the coal seam is buried deep, the transportation box needs to perform long-distance lifting operations along the shaft or inclined shaft roadway.

[0003] In related technologies, the connection between the transportation box and the material truck usually adopts an open bearing structure, and the material truck only contacts the bottom surface of the transportation box by gravity. However, during the lifting process, due to mechanical vibration, roadway undulation and inertia, the transportation box is prone to horizontal displacement and angular displacement, resulting in the material truck sliding or jittering inside the box, and the dynamic stability is insufficient; secondly, the shaking of the material truck will also cause coal to spill during transportation, which not only causes material loss, but may also trigger secondary disasters such as shaft blockage and equipment failure. Summary of the Invention

[0004] This application aims to solve at least one of the technical problems in the related technologies to some extent.

[0005] To this end, an object of this application is to provide a lifting device for coal mine material transportation, which can effectively prevent the material truck from sliding or jittering inside the box, improve the dynamic stability of the material truck, and thus effectively reduce the probability of material loss and occurrence of secondary disasters.

[0006] To achieve the above object, an embodiment of the first aspect of the present application provides a lifting device for coal mine material transportation, including a material cart, a lifting assembly, two first fixing devices, a second fixing device, and a driving device. Among them, the lifting assembly is arranged in the mine shaft, and the material cart is arranged on the lifting assembly; the two first fixing devices and the second fixing device are respectively arranged on the lifting assembly and are respectively connected to the driving device; the lifting assembly includes a support assembly, and the driving device includes a rotating shaft rotatably arranged on the support assembly; a first bevel gear and two second bevel gears are respectively sleeved on the shaft body of the rotating shaft, and the two second bevel gears are respectively meshed and connected to the two first fixing devices; the first fixing device includes a first adjusting assembly and a first fixing assembly, the first adjusting assembly is meshed and connected to the corresponding second bevel gear, and the first fixing assembly is arranged on the first adjusting assembly; the second fixing device includes a second adjusting assembly and a second fixing assembly, the second adjusting assembly is meshed and connected to the first bevel gear, and the second fixing assembly is arranged on the second adjusting assembly.

[0007] The lifting device for coal mine material transportation according to the embodiment of the present application can effectively prevent the material cart from sliding or shaking in the box body, improve the dynamic stability of the material cart, and thus effectively reduce the probability of material loss and the occurrence of secondary disasters.

[0008] In addition, the lifting device for coal mine material transportation proposed above according to the present application may also have the following additional technical features: In an embodiment of the present application, the support assembly includes a material box for placing the material cart. A support seat is fixedly installed at the top end of the material box. A box door for tightly closing the material box is movably connected to the front end of the material box, and two locking blocks are fixedly installed at the front end of the box door.

[0009] In an embodiment of the present application, two sliding grooves for the material cart to slide are opened at the bottom end of the material box, and a locking groove for cooperating with the locking block is opened at the bottom end of the material box.

[0010] In an embodiment of the present application, a handle for pushing the material cart to move is fixedly installed at the front end of the material cart, and rollers for moving in the sliding groove are arranged below the material cart.

[0011] In an embodiment of the present application, the first adjusting assembly includes a third bevel gear arranged in the material box for meshing with the second bevel gear. A first threaded rod for driving the first fixing assembly to move left and right is fixedly installed at the end of the third bevel gear away from the second bevel gear.

[0012] In one embodiment of the present application, the first fixing component includes a first threaded sleeve plate threadedly connected to the first threaded rod. One end of the first threaded sleeve plate away from the third bevel gear is fixedly installed with a fixing strip for fixing the rollers in the chute, and there are two fixing strips.

[0013] In one embodiment of the present application, the second adjusting component includes a fourth bevel gear arranged in the feed bin for meshing connection with the first bevel gear. One end of the fourth bevel gear away from the first bevel gear is fixedly installed with a second threaded rod for driving the second fixing component to move left and right.

[0014] In one embodiment of the present application, the second fixing component includes a second threaded sleeve plate threadedly connected to the second threaded rod for moving left and right. One end of the second threaded sleeve plate away from the fourth bevel gear is fixedly installed with a fixing rod for fixing the locking blocks in the locking grooves, and there are two fixing rods.

[0015] In one embodiment of the present application, an electric hoisting mechanism is provided above the mine shaft. The electric hoisting mechanism includes a first motor and a winding drum. Among them, the winding drum is rotatably arranged above the mine shaft through a mounting frame, and the winding drum is connected to the support seat through a steel rope; one end of the steel rope is wound around the winding drum, and the other end of the steel rope is fixedly connected to the support seat; the first motor is fixedly arranged on the mounting frame and is coaxially connected to one end of the winding drum.

[0016] In one embodiment of the present application, the driving device further includes a second motor. The second motor is fixedly arranged on the support component, and the output shaft of the second motor is coaxially connected to one end of the rotating shaft.

[0017] Compared with the prior art, the beneficial effects of the present application are as follows: 1. Improved dynamic stability: Through the mechanical locking structure of the first fixing device and the trolley rollers, combined with the double locking of the second fixing device on the box door, a three-point stable support system is formed, effectively suppressing the horizontal displacement and angular displacement of the transport box during vertical lifting, and significantly improving the dynamic stability of the trolley.

[0018] 2. Control of material loss: The locking block-fixing rod matching structure between the box door and the feed bin, combined with the mechanical limit design of the trolley rollers, forms a fully enclosed transportation space, which can significantly reduce coal spillage, avoid the risk of shaft blockage, and reduce resource waste and equipment maintenance costs.

[0019] 3. Enhanced equipment adaptability: The threaded rod-threaded sleeve plate structure of the first adjusting component can adjust the distance between the fixing strips to adapt to trolley of various specifications. The fixing rods of the second fixing component adopt a modular design, and different types of box doors can be adapted by replacing the lock heads, improving the versatility of the equipment.

[0020] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above-mentioned and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein: Figure 1 FIG. is a schematic structural diagram of a lifting device for coal mine material transportation according to an embodiment of the present application; Figure 2 FIG. is a schematic structural diagram of a lifting assembly of a lifting device for coal mine material transportation according to an embodiment of the present application; Figure 3 FIG. is a schematic structural diagram of a support assembly of a lifting device for coal mine material transportation according to an embodiment of the present application; Figure 4 FIG. is a schematic structural diagram of a material cart of a lifting device for coal mine material transportation according to an embodiment of the present application; Figure 5 FIG. is a schematic structural diagram of a driving device of a lifting device for coal mine material transportation according to an embodiment of the present application; Figure 6 FIG. is a mating diagram of a first fixing device and a second fixing device of a lifting device for coal mine material transportation according to an embodiment of the present application; Figure 7 For a lifting device for coal mine material transportation according to an embodiment of the present application Figure 6 Enlarged view at A in; Figure 8 For a lifting device for coal mine material transportation according to an embodiment of the present application Figure 6 Enlarged view at B in.

[0022] As shown in the figure: 100, mine; 200, lifting assembly; 210, first motor; 220, winding drum; 230, support assembly; 231, material box; 232, support base; 233, box door; 234, locking block; 235, chute; 236, locking groove; 300, material cart; 301, handle; 302, roller; 400, drive device; 410, second motor; 420, rotating shaft; 430, first bevel gear; 440, second bevel gear; 500, first fixing device; 510, first adjusting assembly; 511, third bevel gear; 512, first threaded rod; 520, first fixing assembly; 521, first threaded sleeve plate; 522, fixing bar; 600, second fixing device; 610, second adjusting assembly; 611, fourth bevel gear; 612, second threaded rod; 620, second fixing assembly; 621, second threaded sleeve plate; 622, fixing rod. Detailed implementation mode

[0023] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, but should not be construed as a limitation to the present application.

[0024] The lifting device for coal mine material transportation according to the embodiment of the present application will be described below with reference to the accompanying drawings.

[0025] As Figures 1-8 shown, the lifting device for coal mine material transportation according to the embodiment of the present application may include a material cart 300. The material cart 300 is arranged in the mine 100. The hopper 300 is used for storing coal mine. A lifting assembly 200 for driving the material cart 300 to lift is arranged in the mine 100. A first fixing device 500 for fixing the material cart 300 in the lifting assembly 200 is arranged in the lifting assembly 200, and there are two groups of the first fixing devices 500.

[0026] A second fixing device 600 is provided inside the lifting assembly 200. A driving device 400 is provided inside the lifting assembly 200 for driving the first fixing device 500 and the second fixing device 600 to move synchronously. The lifting assembly 200 may include a support assembly 230 provided in the mine 100 for storing the material truck 300. The driving device 400 may include a rotating shaft 420 provided in the support assembly 230 for rotation. A second motor 410 for driving the rotation of the rotating shaft 420 is provided at the front end of the rotating shaft 420. A second bevel gear 440 for driving the first fixing device 500 to fix the material truck 300 is provided on the shaft body of the rotating shaft 420. And there are two second bevel gears 440, and the two second bevel gears 440 are respectively meshed and connected with the two first fixing devices 500. A first bevel gear 430 for driving the second fixing device 600 to fix the support assembly 230 is provided on the shaft body of the rotating shaft 420. The first fixing device 500 may include a first adjusting assembly 510 provided in the support assembly 230 for meshing and connecting with the second bevel gear 440. A first fixing assembly 520 for fixing the material truck 300 in the support assembly 230 is provided on the shaft body of the first adjusting assembly 510. The second fixing device 600 may include a second adjusting assembly 610 provided in the support assembly 230 for meshing and connecting with the first bevel gear 430. A second fixing assembly 620 for covering and tightening the support assembly 230 is provided on the shaft body of the second adjusting assembly 610.

[0027] In an embodiment of the present application, as Figure 2 and Figure 3 shown, an electric hoisting mechanism (not specifically shown in the figure) for lifting the support assembly 230 is provided above the mine 100. The electric hoisting mechanism includes a first motor 210 and a winding drum 220. Among them, the winding drum 220 is rotatably provided above the mine 100 through a mounting frame, and the winding drum 220 is connected to the support base 232 through a steel wire rope. One end of the steel wire rope is wound around the winding drum 220, and the other end of the steel wire rope is fixedly connected to the support base 232. The first motor 210 is fixedly provided on the mounting frame and is coaxially connected to one end of the winding drum 220. Therefore, when the first motor 210 drives the winding drum 220 to rotate, the support assembly 230 can be lifted upward, so that it is convenient to lift the material truck 300 in the support assembly 230. When the winding drum 220 rotates in the reverse direction, the material truck 300 is driven to descend. In addition, a speed control box is installed on one side of the first motor 210 for adjusting the running speed of the first motor 210 to maintain the stable transportation during the up and down movement of the support assembly 230 and prevent shaking.

[0028] As a possible scenario, the electric winch mechanism described in this embodiment can also be replaced by a pneumatic winch. The power source of the pneumatic winch is compressed air. When it is necessary to lift the skip 300, the pneumatic system valve is opened, and the compressed air enters the pneumatic motor. The pneumatic motor converts the pressure energy of the compressed air into mechanical energy, driving the take-up reel 220 to start rotating. As the take-up reel 220 rotates, the steel rope is gradually retracted. Since the steel wire rope is connected to the support seat 232, the entire support assembly 230 is lifted upward, realizing the rise of the skip 300. During this process, the pressure and flow rate of the compressed air entering the pneumatic motor can be precisely controlled by adjusting the pressure reducing valve and flow control valve in the pneumatic system, thereby controlling the rotation speed of the reel, ensuring the smooth rising process of the support assembly 230, and preventing the skip 300 from shaking and causing coal to spill.

[0029] When it is necessary to lower the skip 300, it is also controlled by the pneumatic system. The relevant valves are adjusted to change the flow direction of the compressed air, causing the pneumatic motor to rotate in the reverse direction, and the reel rotates in the reverse direction accordingly, and the steel wire rope is gradually released. At this time, under the action of the self-weight of the skip 300 and the support assembly 230, it moves downward along the mine shaft 100, realizing the lowering of the skip 300. During the lowering process, the pressure and flow rate of the compressed air are still controlled to regulate the lowering speed, ensuring the safety and stability of the lowering process. Compared with electric drive, the pneumatic winch has advantages such as good explosion-proof performance and adaptability to the complex environment in coal mines, further improving the safety and reliability of coal mine material transportation.

[0030] Furthermore, the support assembly 230 may include a skip box 231 for placing the skip 300, and the front side of the skip box 231 remains unobstructed to facilitate moving the skip 300 into the skip box 231. A support seat 232 is fixedly installed at the top of the skip box 231, and there are two support seats 232, which are welded symmetrically left and right at the top of the skip box 231. The front end of the skip box 231 is movably connected with a box door 233 for closing the skip box 231 tightly. Two locking blocks 234 are fixedly installed at the front end of the box door 233. Thus, when it is necessary to transfer the skip 300 into the skip box 231, the box door 233 can be flipped upward around the skip box 231 to keep the front side of the skip box 231 unobstructed, and then the skip 300 can be transferred into the skip box 231.

[0031] Furthermore, two sliding grooves 235 for the sliding of the feeding vehicle 300 are formed at the bottom end of the bin 231, and the two sliding grooves 235 are symmetrically distributed left and right at the bottom end of the bin 231 to facilitate quickly moving the feeding vehicle 300 into the bin 231 along the sliding grooves 235. A locking groove 236 for cooperating with the locking block 234 is formed at the bottom end of the bin 231, and there are two locking grooves 236 which are symmetrically distributed left and right on both sides of the two sliding grooves 235. At the same time, the shape and size of the locking groove 236 are the same as those of the locking block 234. Thus, when the coal in the feeding vehicle 300 needs to be transported out of the mine 100, the box door 233 can be turned upward around the bin 231 to keep the front side of the bin 231 unblocked. Then, the feeding vehicle 300 is moved into the bin 231 along the two sliding grooves 235, so that the rear end of the feeding vehicle 300 is closely attached to the inner wall of the bin 231. Next, the box door 233 is lowered, and the two locking blocks 234 are placed into the locking grooves 236. Then, the driving device 400 not only drives the first fixing device 500 to fix the feeding vehicle 300 to prevent the feeding vehicle 300 from shaking in the bin 231 and causing the coal to spill, but also can synchronously fix the locking blocks 234 in the locking grooves 236 by the second fixing device 600 to prevent the box door 233 from opening during the up and down movement of the bin 231.

[0032] In an embodiment of the present application, as Figure 4 shown, a handle 301 for pushing the feeding vehicle 300 to move is fixedly installed at the front end of the feeding vehicle 300, and there are two handles 301 which are symmetrically welded left and right at the front end of the feeding vehicle 300 to facilitate the operator to push the feeding vehicle 300 through the two handles 301. Rollers 302 for moving in the sliding grooves 235 are arranged below the feeding vehicle 300, and there are four rollers 302 which are distributed in a rectangular array below the feeding vehicle 300. Thus, the four rollers 302 can be used to move along the sliding grooves 235, and the feeding vehicle 300 can be moved into the bin 231, which is beneficial to more quickly transporting the feeding vehicle 300 for minerals into the bin 231.

[0033] In an embodiment of the present application, as Figure 5 、 Figure 6 and Figure 7As shown in the figure, there are two first adjusting components 510, and the two first adjusting components 510 are symmetrically distributed left and right in the material box 231. At the same time, the upper parts of the two first adjusting components 510 are connected to the material box 231 by bolts on the mounting plate through threads, so that the two first adjusting components 510 can maintain a clean space, and at the same time, it is also convenient to repair the first adjusting components 510. The first adjusting component 510 includes a third bevel gear 511 arranged in the material box 231 for meshing with the second bevel gear 440. One end of the third bevel gear 511 away from the second bevel gear 440 is fixedly installed with a first threaded rod 512 for driving the first fixing component 520 to move left and right. And the right end of the pair of first threaded rods 512 is connected to the box body of the material box 231 through a bearing to facilitate the rotation of the first threaded rod 512.

[0034] Furthermore, the first fixing component 520 includes a first threaded sleeve plate 521 threadedly connected to the first threaded rod 512, and the shape and size of the first threaded sleeve plate 521 are the same as the shape and size of the long groove for placing the first threaded rod 512 in the material box 231. To facilitate the left and right movement of the first threaded sleeve plate 521 along the first threaded rod 512, the first threaded sleeve plate 521 can always move left and right without rotating. One end of the first threaded sleeve plate 521 away from the third bevel gear 511 is fixedly installed with a fixing strip 522 for fixing the roller 302 in the chute 235. And there are two fixing strips 522, and the two fixing strips 522 are symmetrically welded on the plate body of the first threaded sleeve plate 521 front and back. Thus, when it is necessary to fix the roller 302 in the material box 231, the second motor 410 can be driven to drive the rotating shaft 420 to rotate, and under the meshing connection between the second bevel gear 440 and the third bevel gear 511, the first threaded sleeve plate 521 can be driven to move away from the direction of the rotating shaft 420. At the same time, the two fixing strips 522 penetrate through the chute 235 and pass above the roller 302 and are inserted into the groove wall of the chute 235. Therefore, the four rollers 302 of the trolley 300 can be locked to prevent the trolley 300 from moving in the material box 231 and causing the coal mine to fall from the trolley 300.

[0035] In an embodiment of the present application, as Figure 6 and Figure 5As shown in the figure, there are two second adjustment components 610, and the two second adjustment components 610 are symmetrically distributed left and right in the material box 231. At the same time, the upper part of the two second adjustment components 610 is threadedly connected between the mounting plate and the material box 231 by bolts, so that the second adjustment component 610 can maintain a clean space and is also convenient for overhauling the second adjustment component 610. The second adjustment component 610 includes a fourth bevel gear 611 disposed in the material box 231 and meshed with the first bevel gear 430. A second threaded rod 612 for driving the second fixing component 620 to move left and right is fixedly installed at one end of the fourth bevel gear 611 away from the first bevel gear 430, and one end of the second threaded rod 612 away from the first bevel gear 430 is connected to the material box 231 through a bearing to facilitate the rotation of the second threaded rod 612.

[0036] Further, the second fixing component 620 includes a second threaded sleeve plate 621 threadedly connected to the second threaded rod 612 for moving left and right. The shape and size of the second threaded sleeve plate 621 are the same as the shape and size of the long groove for placing the second threaded rod 612 in the material box 231, so as to facilitate the second threaded sleeve plate 621 to move left and right along the second threaded rod 612 and always keep the second threaded sleeve plate 621 moving left and right without rotating. At the same time, the position of the second threaded sleeve plate 621 on the second threaded rod 612 can be adjusted accordingly when the first threaded sleeve plate 521 drives the two fixing bars 522 to fix the roller 302, so as to ensure that when the two fixing bars 522 fix the roller 302, the two fixing rods 622 on the second threaded sleeve plate 621 synchronously lock the locking block 234 in the locking groove 236. A fixing rod 622 for fixing the locking block 234 in the locking groove 236 is fixedly installed at one end of the second threaded sleeve plate 621 away from the fourth bevel gear 611. There are two fixing rods 622, and the two fixing rods 622 are symmetrically welded front and back on the second threaded sleeve plate 621. Thus, when the box door 233 needs to be locked, the second motor 410 can be driven to drive the rotating shaft 420 to rotate, and under the meshing connection between the first bevel gear 430 and the fourth bevel gear 611, the second threaded rod 612 rotates synchronously, so as to drive the second threaded sleeve plate 621 to move away from the rotating shaft 420 along the second threaded rod 612. At the same time, the two fixing rods 622 penetrate through the sliding groove 235 and the locking groove 236 and pass through the locking block 234, and are inserted into the groove wall of the locking groove 236. Therefore, the box door 233 can cover the material box 231 tightly to prevent the box door 233 from opening during the lifting process of the material box 231.

[0037] Specifically, the overall working process of the present application is as follows: Skip car loading: The operator pushes the skip car 300 along the chute 235 at the bottom end of the bin 231 through the grip 301, so that the rear end of the skip car is closely attached to the inner wall of the bin, closes the bin door 233, aligns the locking block 234 at the front end of the bin door with the locking groove 236 at the bottom end of the bin, and inserts it.

[0038] Dual fixation start: Start the second motor 410 to drive the rotation of the rotating shaft 420, and synchronously trigger the dual fixation device through the bevel gear transmission system: The first fixation device 500: The second bevel gear 440 drives the third bevel gear 511 of the first adjustment component 510 to rotate, and the first threaded rod 512 drives the first threaded sleeve plate 521 to move horizontally, so that the fixing strip 522 passes through the chute 235 and inserts into the groove wall directly above the roller 302, realizing the mechanical locking of the four rollers of the skip car 300.

[0039] The second fixation device 600: The first bevel gear 430 drives the fourth bevel gear 611 of the second adjustment component 610 to rotate, and the second threaded rod 612 drives the second threaded sleeve plate 621 to move horizontally, so that the fixing rod 622 passes through the locking groove 236 and inserts into the positioning hole of the locking block 234, realizing the rigid connection between the bin door 233 and the bin 231.

[0040] Material lifting and transportation: Start the first motor 210 to drive the winding drum 220 to rotate, lift the support base 232 through the steel rope, so that the bin 231 vertically rises and falls along the shaft. During the transportation process, the dual fixation device forms a three-point stable support to inhibit the shaking of the skip car 300 and the displacement of the bin door 233.

[0041] Unloading and reset: After reaching the target position, the second motor 410 rotates reversely to drive the rotating shaft 420 to reset, the dual fixation device is released synchronously, the bin door 233 is opened, and the skip car 300 is removed through the chute 235 for unloading, completing the transportation cycle.

[0042] In summary, the lifting device for coal mine material transportation in the embodiment of the present application can effectively prevent the skip car from sliding or shaking in the box, improve the dynamic stability of the skip car, and thus effectively reduce the probability of material loss and secondary disasters.

[0043] In the description of this specification, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0044] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" 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 this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0045] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A lifting device for transporting coal and mineral materials, characterized in that: It includes a trolley, a lifting assembly, two first fixing devices, a second fixing device and a driving device, wherein: The lifting assembly is arranged in the mine, and the material vehicle is arranged on the lifting assembly; The two first fixing devices and the second fixing devices are respectively arranged on the lifting assembly and are respectively connected to the driving device; The lifting assembly includes a supporting assembly, and the driving device includes a rotating shaft, and the rotating shaft is rotatably arranged on the supporting assembly; The shaft body of the rotating shaft is respectively sleeved with a first bevel gear and two second bevel gears, and the two second bevel gears are respectively meshed and connected with the two first fixing devices; The first fixing device comprises a first adjusting component and a first fixing component, the first adjusting component is meshed and connected with the corresponding second bevel gear, and the first fixing component is arranged on the first adjusting component; The second fixing device includes a second adjusting component and a second fixing component. The second adjusting component is meshed and connected with the first bevel gear. The second fixing component is arranged on the second adjusting component.

2. The lifting device for coal and mineral material transportation according to claim 1, characterized in that: The support assembly includes a material box for placing the material cart, a support seat is fixedly installed on the top of the material box, a box door for closing the material box is movably connected to the front end of the material box, and two locking blocks are fixedly installed on the front end of the box door.

3. The lifting device for coal and mineral material transportation according to claim 2, characterized in that: The bottom end of the material box is provided with two slide grooves for the sliding of the feeding vehicle, and the bottom end of the material box is provided with a locking groove for cooperating with the locking block.

4. The lifting device for coal and mineral material transportation according to claim 3, characterized in that: A handle for pushing the material trolley to move is fixedly installed at the front end of the material trolley, and rollers for moving in the slide groove are arranged at the bottom of the material trolley.

5. The lifting device for coal and mineral material transportation according to claim 4, characterized in that: The first adjustment assembly includes a third bevel gear disposed in the material box for meshing with the second bevel gear, and a first threaded rod for driving the first fixing assembly to move left and right is fixedly mounted on one end of the third bevel gear away from the second bevel gear.

6. The lifting device for coal and mineral material transportation according to claim 5, characterized in that: The first fixing component comprises a first threaded sleeve plate threadedly connected to the first threaded rod, and one end of the first threaded sleeve plate away from the third bevel gear is fixedly mounted with a fixing bar for fixing the roller in the slide groove, and there are two fixing bars.

7. The lifting device for coal and mineral material transportation according to claim 4, characterized in that: The second adjustment assembly includes a fourth bevel gear disposed in the material box for meshing with the first bevel gear, and a second threaded rod for driving the second fixed assembly to move left and right is fixedly mounted on one end of the fourth bevel gear away from the first bevel gear.

8. The lifting device for coal and mineral material transportation according to claim 7, characterized in that: The second fixing assembly includes a second threaded sleeve plate threadedly connected to the second threaded rod for left and right movement, and one end of the second threaded sleeve plate away from the fourth bevel gear is fixedly installed with a fixing rod for fixing the locking block in the locking groove, and there are two fixing rods.

9. The lifting device for coal and mineral material transportation according to claim 2, characterized in that: An electric hoisting mechanism is arranged above the mine, and the electric hoisting mechanism comprises a first motor and a winding drum, wherein: The winding drum is rotatably arranged above the mine through a mounting frame, and the winding drum is connected to the support seat through a steel rope; One end of the steel rope is wound around the winding drum, and the other end of the steel rope is fixedly connected to the support seat; The first motor is fixedly arranged on the mounting frame and is coaxially connected to one end of the winding drum.

10. The lifting device for coal and mineral material transportation according to claim 1, characterized in that: The driving device further comprises a second motor, the second motor is fixedly arranged on the supporting assembly, and an output shaft of the second motor is coaxially connected to one end of the rotating shaft.

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