Driving face dust removal air duct hanging and moving device

Abstract

The utility model discloses a hanging and moving device for a dedusting air duct on a driving working face. The hanging and moving device comprises a frame main body, at least two groups of wheels rotationally mounted on the frame main body, a hanging unit and a driving unit, a rotating seat is fixedly mounted in the center of the bottom of the frame main body; the hanging unit comprises a hanging seat, a hanging frame and a telescopic oil cylinder, the hanging seat is rotationally arranged on the outer side of the rotating seat matched with the hanging seat in a sleeving mode, the hanging frame is fixedly installed at the bottom of the hanging seat, and a connecting hanging lug is fixedly arranged on the circumferential outer side wall of the hanging seat; the telescopic oil cylinder is fixed to the bottom of the frame body and located beside the rotating base, and the tail end of a piston rod of the telescopic oil cylinder is hinged to the connecting hanging lug. And the driving unit is used for driving the whole device and the dust removal air duct to move. The device is simple in structure, automatic movement and position adjustment of the air duct are achieved, the frequency and complexity of high-altitude operation are reduced, the safety risk is reduced, the working face pause time caused by manual operation is shortened, and the dust removal efficiency of the coal mine driving working face is improved.

Description

Technical Field

[0001] This utility model relates to the field of mine ventilation and dust removal technology, specifically to a hoisting and moving device for dust removal ventilation ducts in tunneling faces. Background Technology

[0002] During the tunneling process of roadheaders in coal mine roadways, a large amount of dust is generated, severely reducing visibility. The accumulation of dust within the roadways is difficult to clean and poses flammable and explosive safety hazards, resulting in a harsh working environment and significant challenges. Current technology typically uses dust collectors in conjunction with dust collection ducts to extract the dust. These ducts are usually suspended directly from the roadway roof by wires, located above the roadheader, to collect dust at the working face. However, roadheaders frequently move during tunneling, making the installation and relocation of dust collection equipment a critical aspect of safety and efficiency in coal mine tunneling. Whenever a dust collection duct needs to be moved or installed, operators must climb ladders to its original location and manually reposition it above the roadheader, involving high-altitude work, posing safety risks. Furthermore, frequent repositioning, complex operations, and the constant climbing are time-consuming and labor-intensive. Furthermore, traditional moving and installation methods are difficult to standardize and regulate, affecting tunneling efficiency and air quality at the working face. Faced with increasingly stringent safety standards and environmental requirements, relying solely on traditional methods is no longer sufficient to meet the needs of modern coal mine production. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing background technology and provide a device that can move the dust removal duct efficiently and safely. Therefore, a dust removal duct hoisting and moving device for tunneling face is provided.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a dust removal duct hanging and moving device for a tunneling face, used in conjunction with a monorail, comprising a frame body, wheels mounted on the frame body, a suspension unit set at the bottom of the frame body, and a drive unit for the entire device. At least two sets of wheels are symmetrically arranged and rotatably mounted on the two vertical side walls of the frame body; a rotating seat is fixedly mounted at the bottom center of the frame body, and a sliding groove is provided on the circumferential side wall of the rotating seat; the suspension unit includes a suspension seat, a hanging frame, and a telescopic cylinder, wherein the suspension seat is adapted to the rotating seat and rotatably fitted on the outside of the rotating seat, and two parallel hanging frames are fixedly mounted on its bottom; the telescopic cylinder is horizontally fixed to the bottom of the frame body by a support plate, located beside the rotating seat; a connecting lug is provided on the outer side wall of the suspension seat, and the piston rod end of the telescopic cylinder is hinged to the connecting lug; the drive unit is used to drive the entire device and the dust removal duct to move.

[0005] Furthermore, the cross-section of the main body of the frame is U-shaped, and inner plates are fixedly installed on the inner sides of its two vertical side walls. A transverse fixing rod is provided on the inner side of the inner plate, and the wheel is rotatably mounted on the corresponding fixing rod through a bearing.

[0006] Furthermore, the inner plate is made of sheet metal and has a certain degree of bending elasticity. A compression spring is fixedly installed between the back side of the fixing rod and the vertical side wall of the frame body.

[0007] Furthermore, each of the aforementioned sets of wheels includes two wheels arranged opposite each other, and each wheel has a coaxially fixed rim at its outer end.

[0008] Furthermore, the suspension unit has a cavity structure for the suspension seat, and its inner sidewall is provided with a sliding protrusion around its circumference, which is fitted into the sliding groove of the aforementioned rotating seat.

[0009] Furthermore, the length extension direction of the suspension bracket is always parallel to the driving direction of the vehicle frame body.

[0010] Furthermore, the drive unit is a winch.

[0011] Furthermore, the drive unit is equipped with a signal sensor, which enables remote control of the drive to rotate the wheels and move along the monorail track.

[0012] Furthermore, the dust removal duct is fixed to the hanging frame at the bottom of the main body of the vehicle frame via a C-shaped support frame and connecting bolts.

[0013] Compared with the prior art, the present invention has the following advantages: The present invention has a simple structure, is easy to install and maintain, realizes the hanging movement and position adjustment of the ventilation duct, reduces the frequency and complexity of high-altitude operations, significantly reduces and eliminates the safety risks that may exist due to high-altitude operations in the past, and improves the safety factor and working comfort of employees; at the same time, it solves the problem of working face downtime caused by manual operation, improves the dust removal efficiency of coal mine tunneling faces, and ensures the continuity and efficiency of tunneling operations. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2This is a schematic diagram of the main structure of the vehicle frame in this utility model;

[0017] Figure 3 This is a schematic diagram of the suspension unit in this utility model;

[0018] In the diagram: 1. Frame body, 2. Wheel, 3. Suspension seat, 4. Hanger, 5. Telescopic cylinder, 6. Bearing, 7. Snap ring, 11. Inner plate, 12. Fixing rod, 13. Rotating seat, 14. Sliding groove, 15. Support plate, 21. Wheel flange, 31. Sliding protrusion, 32. Connecting lug. Detailed Implementation

[0019] It should be noted that in the description of this utility model, terms such as "upper," "lower," "coaxial," "center," "front," "rear," "left," "right," "one end," and "the other end," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. These terms are merely used to facilitate the description of the structural relationships of the components in this utility model and do not specifically imply that any component in this utility model must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this utility model. Furthermore, "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage.

[0020] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting," etc., 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0022] like Figures 1 to 3As shown, a dust removal ventilation duct hoisting and moving device for a tunneling face includes a frame body 1, wheels 2 mounted on the frame body 1, a suspension unit mounted at the bottom of the frame body 1, and a drive unit for moving the entire device. The frame body 1, serving as the supporting foundation for the entire device, is made of U-shaped steel with a U-shaped cross-section. Inner plates 11 are welded to the inner sides of the two vertical sidewalls of the frame body 1. Two fixing rods 12 at the same horizontal height are welded to the inner sides of each inner plate 11. The fixing rods 12 are perpendicular to the inner sides of the inner plates 11. The wheels 2 are rotatably mounted on the corresponding fixing rods 12 via bearings 6 and fixed to the inner sides of the bearings 6 by retaining springs 7, ensuring that the wheels 2 always rotate around the central axis of the fixing rods 12. There are four wheels 2 in total, arranged in pairs and opposite each other, which makes it easy to clamp and hang them on the monorail. Each wheel 2 also has a wheel flange 21 coaxially fixed at the end near the corresponding inner plate 11, which is integrally formed to prevent the wheel 2 from separating from the track during movement.

[0023] A rotating seat 13, cylindrical in shape, is fixedly installed at the center of the bottom of the frame body 1, with a sliding groove 14 circumferentially arranged on its circumferential sidewall. The suspension unit includes a suspension seat 3, a hanger 4, and a telescopic cylinder 5. The suspension seat 3 is adapted to the rotating seat 13 and has a cavity structure with an open upper end, coaxially fitted to the outside of the rotating seat 13. The inner sidewall of the suspension seat 3 has a sliding protrusion 31 circumferentially arranged, which is adapted to the sliding groove 14 on the rotating seat 13. During assembly, the sliding protrusion 31 is embedded in the sliding groove 14 and can rotate relative to it. Wear-resistant grease can be injected between the two. Two mutually spaced and parallel hangers 4 are welded to the bottom of the suspension seat 3. Each hanger 4 is an inverted π shape with the bottom crossbeam at the same height. A connecting lug 32 perpendicular to its tangent and extending outward is also welded to the outer circumferential sidewall of the suspension seat 3. A support plate 15 is welded and fixed to the bottom of the frame body 1, which is perpendicular to the bottom surface of the frame body 1 and downward. The base of the telescopic cylinder 5 is fixed on the support plate 15, arranged horizontally, and located next to the rotating seat 13. The end of the piston rod in the telescopic cylinder 5 is hinged to the connecting lug 32, which drives the suspension seat 3 to rotate coaxially around the rotating seat 13.

[0024] The drive unit is a winch, which is connected to the dust collection duct that needs to be moved, and drives the moving device and the dust collection duct to move through mechanical power.

[0025] In a further optimized technical solution, the inner plate 11 of the frame body 1 is made of sheet metal material and has a certain degree of bending elasticity. Its center position is fixed to the vertical side wall of the frame body 1 by bolts, and both ends are slightly tilted inward. A compression spring is fixedly installed between the back of the fixed rod 12 and the vertical side wall of the frame body 1, so that the wheel 2 can always be clamped and engaged with the monorail rail to avoid wheel slippage.

[0026] In use, the dust collection duct is first supported from below by a C-shaped support frame. The two ends of the C-shaped support frame are then fixed to the two hanging frames 4 using corresponding connecting bolts, ensuring the length of the dust collection duct aligns with the length of the hanging frames 4. Alternatively, it can be directly hung to the bottom of the vehicle frame 1 using rotating hooks. The dust collection duct is suspended from multiple mobile devices, evenly spaced, which are then mounted on a rail connected to the tunneling machine, working together to lift the dust collection duct. Subsequently, the winch is used to move the dust collection duct forward and stop. During the tunneling face advance, the front end of the dust collection duct is always kept 5-10 meters away from the tunneling face, using a "long pressure, short extraction" ventilation technology to efficiently clean dust from the tunneling face. Meanwhile, during the advancement of the tunneling face, the overhead rails are laid out along the tunneling roadway, and there may be curved areas. When the aforementioned mobile device moves to a curved area, in order to prevent the dust removal duct from bending or twisting, the telescopic cylinder 5 in the mobile device is activated. Through its extension and retraction, it drives the suspension seat 3 to rotate around the rotating seat 13, thereby driving the hanging frame 4 to rotate and make fine adjustments, which in turn drives the dust removal duct to adjust so that it always remains parallel to the traveling direction of the chassis body 1. This completes the precise adjustment of the duct position, achieves efficient dust removal, significantly improves the air quality of the coal mine tunneling face, and greatly reduces the health risks to workers.

[0027] As a further optimized technical solution of this utility model, the drive unit is equipped with a signal sensor, which can be remotely controlled by the ground control system to control the rotation of its wheels 2, thereby controlling the dust removal duct to move forward and stop along the hanging rail.

[0028] The aforementioned suspension seat 3 is also equipped with an anti-detachment device to prevent it from suddenly separating from the rotating seat 13 and to increase the safety factor.

[0029] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A hoisting and moving device for a dust removal ventilation duct in a tunneling face, characterized in that: The device includes a frame body, wheels mounted on the frame body, a suspension unit located at the bottom of the frame body, and a drive unit for the entire device. At least two sets of wheels are symmetrically arranged and rotatably mounted on the two vertical side walls of the frame body. A rotating seat is fixedly mounted at the center of the bottom of the frame body, and the circumferential side wall of the rotating seat has a sliding groove circumferentially therearound. The suspension unit includes a suspension seat, a hanger, and a telescopic cylinder. The suspension seat is adapted to the rotating seat and rotatably fitted onto the outside of the rotating seat. Two parallel hangers are fixedly mounted on its bottom. The telescopic cylinder is laterally fixed to the bottom of the frame body via a support plate, located beside the rotating seat. A connecting lug is provided on the outer side wall of the suspension seat, and the piston rod end of the telescopic cylinder is hinged to the connecting lug. The drive unit is used to move the entire device and the dust collection duct.

2. The dust removal ventilation duct hanging and moving device for a tunneling face according to claim 1, characterized in that: The main body of the frame has a U-shaped cross-section, and inner plates are fixedly installed on the inner sides of its two vertical side walls. The inner side of the inner plate is provided with a transverse fixing rod, and the wheel is rotatably mounted on the corresponding fixing rod through a bearing.

3. The dust removal ventilation duct hanging and moving device for a tunneling face according to claim 2, characterized in that: The inner panel is made of sheet metal and has a certain degree of bending elasticity. A compression spring is fixedly installed between the back side of the fixing rod and the vertical side wall of the frame body.

4. The dust removal ventilation duct hanging and moving device for a tunneling face according to claim 1, characterized in that: Each set of wheels consists of two wheels arranged opposite each other, and each wheel has a coaxially fixed rim at its outer end.

5. The dust removal ventilation duct hanging and moving device for a tunneling face according to claim 1, characterized in that: The suspension unit has a cavity structure for the suspension seat, and its inner side wall is provided with a sliding protrusion around its circumference, which is fitted into the sliding groove of the aforementioned rotating seat.

6. The dust removal ventilation duct hanging and moving device for a tunneling face according to claim 1, characterized in that: The length extension direction of the suspension bracket is always parallel to the driving direction of the vehicle frame.

7. The dust removal ventilation duct hanging and moving device for a tunneling face according to claim 1, characterized in that: The drive unit is a winch.

8. The dust removal ventilation duct hanging and moving device for a tunneling face according to claim 1, characterized in that: The drive unit is equipped with a signal sensor, which can remotely control the drive, drive the wheels to rotate, and move along the monorail track.

9. A hoisting and moving device for dust removal ventilation ducts in a tunneling face according to claim 1, characterized in that: The dust removal duct is fixed to the hanging frame at the bottom of the main body of the vehicle frame via a C-shaped support frame and connecting bolts.

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