An underground mine hoisting structure

Abstract

The utility model relates to the technical field of mine hoisting structure, disclose a kind of underground mining hoisting structure, including main frame and hoisting integration, hoisting integration is slidably connected in main frame, hoisting integration includes shell, first lifting device, second lifting device and material placing device, the fixed end of first lifting device is set to shell top surface, first lifting device lifting end connects material placing device top surface, the fixed end of second lifting device is set to shell side, the lifting end of second lifting device connects material placing device top surface, material placing device is slidably connected in shell. The utility model is driven to lift material placing device by setting first lifting device and the two drive structures of second lifting device, when one of drive structure fails, another drive structure can still continue to work, avoid the problem that single drive source cannot work when damaging, greatly improve the reliability of hoisting structure.

Description

Technical Field

[0001] This utility model relates to the field of hoisting structure technology in mines, specifically a hoisting structure for underground mining sites. Background Technology

[0002] During production operations in underground mining sites, equipment maintenance requires hoisting operations. In the past, hoisting operations typically used an "anchor bolt hoisting structure," which involves drilling two anchor bolt holes in the rock roof of the underground mining site, installing anchor bolts, and finally welding the exposed ends of the two anchor bolts together and attaching a "hand-operated hoist" to carry out the hoisting operation.

[0003] Most existing hoisting structures use a single motor drive, employing a combination of fixed and movable pulleys to pull the object using four ropes. The motor only needs to overcome one-quarter of the object's weight, reducing power consumption. However, in complex underground environments, how can the stability and safety of the hoisting process be guaranteed if the motor malfunctions or lacks sufficient power? A single motor drive means that if the motor fails, the entire hoisting process will be immediately interrupted, potentially causing the object to suddenly fall, posing a safety hazard.

[0004] To address the aforementioned issues, we propose a hoisting structure for underground mining sites. Utility Model Content

[0005] The purpose of this utility model is to provide a hoisting structure for underground mining sites to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an underground mining hoisting structure, comprising a main frame and a hoisting assembly; the hoisting assembly is slidably connected to the main frame;

[0007] The hoisting assembly includes an outer shell, a first lifting device, a second lifting device, and a material placement device; the fixed end of the first lifting device is disposed on the top surface of the outer shell; the lifting end of the first lifting device is connected to the top surface of the material placement device; the fixed end of the second lifting device is disposed on the side surface of the outer shell; the lifting end of the second lifting device is connected to the top surface of the material placement device; the material placement device is slidably connected inside the outer shell.

[0008] Preferably, the first lifting device includes a dual-axis motor and two steel rope winding roller devices; the steel rope winding roller device includes a winding roller, a first steel rope, and a bearing seat; one end of the winding roller is connected to the drive end of the dual-axis motor; the other end of the winding roller is connected to the top surface of the outer casing through the bearing seat; one end of the first steel rope is fixed to the circumferential side of the winding roller; the other end of the first steel rope is connected to the top surface of the material placement device.

[0009] Preferably, the second lifting device includes a geared motor, a support shaft, and a second steel rope; the fixed end of the geared motor is connected to the side of the outer casing; the driving end of the geared motor passes through the side of the outer casing and is connected to one end of the support shaft; the other end of the support shaft is rotatably connected to the inner side of the outer casing; one end of the second steel rope is fixedly connected to the circumferential side of the support shaft; the other end of the second steel rope is connected to the top surface of the material placement device.

[0010] Preferably, the material feeding device includes a hopper, a first connecting structure, and a second connecting structure; the top surface of the hopper is provided with the first connecting structure and the second connecting structure; the lifting end of the first lifting device is connected to the first connecting structure; the lifting end of the second lifting device is connected to the second connecting structure.

[0011] Preferably, the hoisting assembly further includes a lifting slide rail; the lifting slide rail is disposed on the inner side of the outer shell; the material placement device further includes a limiting pulley frame; one end of the limiting pulley frame is fixedly connected to the side wall of the hopper; the pulley end of the limiting pulley frame is slidably connected to the lifting slide rail.

[0012] Preferably, the hoisting integration further includes a moving device; the moving device is sleeved on the outer side of the outer shell; the moving device includes a frame and a sliding drive assembly; the sliding drive assembly includes a motor and multiple rollers; the frame is a hollow structure; multiple rollers are rotatably connected inside the frame; the fixed end of the motor is connected to the outer side of the frame; the driving end of the motor passes through the side of the frame and connects to one of the rollers; the circumferential side of the roller in the sliding drive assembly abuts against the top surface of the main frame.

[0013] Preferably, the main frame includes a horizontal frame and a vertical frame; the vertical frame is slidably connected to the top surface of the horizontal frame; the sliding drive assembly is slidably connected to the top surface of the vertical frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Improved reliability: By setting up two drive structures, the first and second lifting devices, to drive and lift the material placement device, if one drive structure fails, the other drive structure can still continue to work, avoiding the problem of a single drive source failing to work when damaged, and greatly improving the reliability of the hoisting structure.

[0016] Enhanced stability: The combination of the limiting pulley frame and the lifting slide can limit the sliding direction of the material placement device, ensuring its stability during lifting and lowering, preventing swaying and deviation, and improving the safety of hoisting operations.

[0017] Expanding the operating range: The main frame adopts a sliding connection structure of horizontal and vertical frames, as well as a sliding design for hoisting integrated into the main frame, which enables the hoisting structure to lift and transport materials over a larger range, thus improving operating efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point B;

[0021] Figure 4 This is a schematic diagram of the hoisting and integration structure in this utility model.

[0022] In the diagram: 1-Main frame, 11-Horizontal frame, 12-Longitudinal frame;

[0023] 2-Lifting integration, 21-Outer shell, 22-First lifting device, 221-Dual shaft motor, 222-Steel rope winding device, 2221-Roller, 2222-First steel rope, 2223-Bearing seat;

[0024] 23-Second lifting device, 231-Reduction motor, 232-Support shaft, 233-Second steel rope;

[0025] 24-Material feeding device, 241-Hopper, 242-First connecting structure, 243-Second connecting structure, 244-Limiting pulley frame;

[0026] 25-Lifting slide, 26-Moving device, 261-Frame, 262-Sliding drive kit. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model provides a technical solution: a hoisting structure for underground mining sites, including a main frame 1 and a hoisting assembly 2, wherein the hoisting assembly 2 is slidably connected to the main frame 1.

[0029] The hoisting assembly 2 includes an outer shell 21, a first lifting device 22, a second lifting device 23, and a material placement device 24. The fixed end of the first lifting device 22 is disposed on the top surface of the outer shell 21, and the lifting end of the first lifting device 22 is connected to the top surface of the material placement device 24. The fixed end of the second lifting device 23 is disposed on the side of the outer shell 21, and the lifting end of the second lifting device 23 is connected to the top surface of the material placement device 24. The material placement device 24 is slidably connected inside the outer shell 21.

[0030] Furthermore, the main frame 1 includes a horizontal frame 11 and a vertical frame 12, the vertical frame 12 being slidably connected to the top surface of the horizontal frame 11, and the sliding drive kit 262 being slidably connected to the top surface of the vertical frame 12.

[0031] In underground mining operations, workers need to install the main frame 1 in a suitable position, ensuring a stable and reliable sliding connection between the horizontal frame 11 and the vertical frame 12. The hoisting assembly 2 is then slidably connected to the vertical frame 12 via the moving device 26 and its position adjusted.

[0032] When material lifting is required, the first lifting device 22 or the second lifting device 23 can be selected according to the actual situation, or both lifting devices can be used simultaneously.

[0033] Furthermore, the first lifting device 22 includes a dual-axis motor 221 and two steel rope winding devices 222. The steel rope winding device 222 includes a winding roller 2221, a first steel rope 2222, and a bearing seat 2223. One end of the winding roller 2221 is connected to the drive end of the dual-axis motor 221, and the other end of the winding roller 2221 is connected to the top surface of the outer shell 21 through the bearing seat 2223. One end of the first steel rope 2222 is fixed to the circumferential side of the winding roller 2221, and the other end of the first steel rope 2222 is connected to the top surface of the material placement device 24.

[0034] Furthermore, the second lifting device 23 includes a reduction motor 231, a support shaft 232, and a second steel rope 233. The fixed end of the reduction motor 231 is connected to the side of the outer casing 21, and the driving end of the reduction motor 231 passes through the side of the outer casing 21 and connects to one end of the support shaft 232. The other end of the support shaft 232 is rotatably connected to the inner side of the outer casing 21. One end of the second steel rope 233 is fixedly connected to the circumferential side of the support shaft 232, and the other end of the second steel rope 233 is connected to the top surface of the material placement device 24. It should be noted that the dual-axis motor 221 and the reduction motor 231 use corresponding motors with the same reduction ratio, and the first steel rope 2222 and the second steel rope 233 use the same specifications. The cross-sectional diameter of the support shaft 232 and the roller 2221 is also the same. This design can prevent uneven force on the material placement device 24 caused by different reduction ratios or diameters when the first lifting device 22 and the second lifting device 23 work simultaneously.

[0035] Furthermore, the feeding device 24 includes a hopper 241, a first connecting structure 242 and a second connecting structure 243. The top surface of the hopper 241 is provided with the first connecting structure 242 and the second connecting structure 243. The lifting end of the first lifting device 22 is connected to the first connecting structure 242, and the lifting end of the second lifting device 23 is connected to the second connecting structure 243.

[0036] The connection points between the other end of the first steel rope 2222 and the top surface of the material placement device 24, and the connection points between the other end of the second steel rope 233 and the top surface of the material placement device 24, are both connected by lifting points. Lifting points are key load-bearing components in lifting operations, connecting the load to the object being lifted. The selection of lifting points requires scientific calculation based on the object's shape, center of gravity, and material properties. In terms of quality control, lifting points must undergo multiple tests, including spectral analysis and magnetic particle testing, and are classified into different strength levels. In practical applications, operational procedures such as trial lifting verification and symmetrical layout must be followed to avoid accidents such as detachment or overturning due to improper lifting point placement. Therefore, the lifting points in this invention are not limited, as long as they can meet the maximum load-bearing capacity.

[0037] Furthermore, the hoisting assembly 2 also includes a lifting slide 25, which is disposed on the inner side of the outer shell 21. The material placement device 24 also includes a limiting pulley frame 244, one end of which is fixedly connected to the side wall of the hopper 241, and the pulley end of which is slidably connected to the lifting slide 25. During the lifting process, the limiting pulley frame 244 slides in the lifting slide 25 to ensure the stability of the material placement device 24 and avoid damage caused by shaking and collisions during the lifting process.

[0038] Furthermore, the hoisting assembly 2 also includes a moving device 26, which is sleeved on the outer side of the outer shell 21. The moving device 26 includes a frame 261 and a sliding drive assembly 262. The sliding drive assembly 262 includes a motor and multiple rollers. The frame 261 is a hollow structure, and multiple rollers are rotatably connected inside the frame 261. The fixed end of the motor is connected to the outer side of the frame 261, and the driving end of the motor passes through the side of the frame 261 and connects to one of the rollers. The circumferential side of the roller in the sliding drive assembly 262 abuts against the top surface of the main frame 1.

[0039] According to the appendix Figure 4 As can be seen, the motor and the roller appear to be off-axis. The sleeve 261 is formed by a hollow tube, and the inner side of the sleeve 261 is equipped with rollers. The connecting shaft of the rollers is equipped with gears. The motor drive end completes the drive by meshing the motor gear with the gear on the rollers. This connection and drive method is existing technology and will not be described in detail.

[0040] Working principle:

[0041] In the underground mining site, the main frame 1 is first installed in a suitable position, ensuring that the sliding connection between the horizontal frame 11 and the vertical frame 12 is stable and reliable. The hoisting assembly 2 is then slidably connected to the vertical frame 12 via the moving device 26 and its position is adjusted.

[0042] When material lifting is required, the first lifting device 22 or the second lifting device 23 can be selected according to the actual situation, or both lifting devices can be used simultaneously. If the first lifting device 22 is used, the dual-axis motor 221 is started, driving the winding roller 2221 to rotate. The first steel rope 2222 is wound around the winding roller 2221, thereby lifting the material placement device 24. If the second lifting device 23 is used, the reduction motor 231 is started, driving the support shaft 232 to rotate. The second steel rope 233 is wound around the support shaft 232, achieving the lifting of the material placement device 24. During the lifting process, the limiting pulley frame 244 slides in the lifting slide 25 to ensure the stability of the material placement device 24.

[0043] When it is necessary to move the material placement device 24 to another position, the motor in the sliding drive assembly 262 is activated, and the motor drives the rollers to rotate, causing the hoisting assembly 24 to slide on the longitudinal frame 12. At the same time, the longitudinal frame 12 can also slide on the transverse frame 11 to further adjust the position of the hoisting assembly 24.

[0044] When it is necessary to lower the material placement device 24, the dual-axis motor 221 or the reduction motor 231 is operated in reverse to release the first steel rope 2222 or the second steel rope 233. The material placement device 24 descends under the action of gravity until it reaches the designated position.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hoisting structure for underground mining operations, characterized in that, It includes a main frame (1) and a hoisting assembly (2); the hoisting assembly (2) is slidably connected to the main frame (1); The hoisting assembly (2) includes an outer shell (21), a first lifting device (22), a second lifting device (23), and a material placement device (24); the fixed end of the first lifting device (22) is disposed on the top surface of the outer shell (21); the lifting end of the first lifting device (22) is connected to the top surface of the material placement device (24); the fixed end of the second lifting device (23) is disposed on the side of the outer shell (21); the lifting end of the second lifting device (23) is connected to the top surface of the material placement device (24); the material placement device (24) is slidably connected inside the outer shell (21).

2. The hoisting structure for underground mining operations according to claim 1, characterized in that, The first lifting device (22) includes a dual-axis motor (221) and two steel rope winding devices (222); the steel rope winding device (222) includes a winding roller (2221), a first steel rope (2222) and a bearing seat (2223); one end of the winding roller (2221) is connected to the drive end of the dual-axis motor (221); the other end of the winding roller (2221) is connected to the top surface of the outer shell (21) through the bearing seat (2223); one end of the first steel rope (2222) is fixed to the circumferential side of the winding roller (2221); the other end of the first steel rope (2222) is connected to the top surface of the material placement device (24).

3. The hoisting structure for underground mining operations according to claim 1, characterized in that, The second lifting device (23) includes a reduction motor (231), a support shaft (232), and a second steel rope (233); the fixed end of the reduction motor (231) is connected to the side of the outer shell (21); the driving end of the reduction motor (231) passes through the side of the outer shell (21) and is connected to one end of the support shaft (232); the other end of the support shaft (232) is rotatably connected to the inner side of the outer shell (21); one end of the second steel rope (233) is fixedly connected to the circumferential side of the support shaft (232); the other end of the second steel rope (233) is connected to the top surface of the material placement device (24).

4. The hoisting structure for underground mining operations according to claim 1, characterized in that, The feeding device (24) includes a hopper (241), a first connecting structure (242) and a second connecting structure (243); the top surface of the hopper (241) is provided with the first connecting structure (242) and the second connecting structure (243); the lifting end of the first lifting device (22) is connected to the first connecting structure (242); the lifting end of the second lifting device (23) is connected to the second connecting structure (243).

5. The hoisting structure for underground mining operations according to claim 4, characterized in that, The hoisting assembly (2) also includes a lifting slide (25); the lifting slide (25) is located on the inner side of the outer shell (21); the material placement device (24) also includes a limiting pulley frame (244); one end of the limiting pulley frame (244) is fixedly connected to the side wall of the hopper (241); the pulley end of the limiting pulley frame (244) is slidably connected to the lifting slide (25).

6. The hoisting structure for underground mining operations according to claim 1, characterized in that, The hoisting assembly (2) also includes a moving device (26); the moving device (26) is sleeved on the outer side of the outer shell (21); the moving device (26) includes a sleeve (261) and a sliding drive kit (262); the sliding drive kit (262) includes a motor and multiple rollers; the sleeve (261) is a hollow structure; multiple rollers are rotatably connected inside the sleeve (261); the fixed end of the motor is connected to the outer side of the sleeve (261); the driving end of the motor passes through the side of the sleeve (261) and connects to one of the rollers; the circumferential side of the roller in the sliding drive kit (262) abuts against the top surface of the main frame (1).

7. The hoisting structure for underground mining operations according to claim 6, characterized in that, The main frame (1) includes a cross frame (11) and a longitudinal frame (12); the longitudinal frame (12) is slidably connected to the top surface of the cross frame (11); the sliding drive kit (262) is slidably connected to the top surface of the longitudinal frame (12).

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