A reversing device for an aerial passenger chair

Abstract

The utility model relates to coal mine auxiliary transport equipment technical field, concretely relates to a kind of reversing device of overhead passenger sling chair, mainly used in coal mine overhead passenger device, realize the safe reversing of sling chair in line terminal.The device includes fixed support, reversing track and guide mechanism.The fixed support is installed on the terminal support structure of load-carrying cable;The reversing track is fixed on fixed support, its inside is equipped with the smooth arc passageway for the cable gripper of sling chair to pass;The guide mechanism is arranged at the entrance and / or inside of reversing track, for guiding cable gripper to enter and pass reversing track smoothly.The utility model passes through the mechanical structure of optimization, forcibly guides sling chair cable gripper to turn along predetermined arc path, avoids the risk, such as collision, cable separation, caused by sling chair arbitrary swing in traditional mode, significantly improves the security and stability of personnel transport, simple structure, high reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary transportation equipment in coal mines, specifically a reversing device for an overhead passenger chairlift. Background Technology

[0002] The overhead passenger transport system is an important piece of equipment for long-distance personnel transportation in coal mines. It drives a steel wire rope (carrying cable) to circulate through a drive device. The chair is fixed to the steel wire rope by a cable gripper to realize the transportation of personnel. In a one-way operation system, after the chair reaches the end of the line, it needs to be turned so that the passengers can return or enter the next cycle.

[0003] Currently, most common reversing methods rely on the chairlift reaching the end and detaching from the cable, then swinging naturally by inertia and gravity to achieve reversal. This method has obvious drawbacks: First, the reversing process is uncontrollable, the chairlift swings with a large amplitude, and is prone to collisions with the support structure or other chairlifts, posing a safety hazard; second, the swinging and turning is not smooth, resulting in a poor riding experience, which may cause tension, especially for unfamiliar workers; finally, when the cable grip re-attaches to the reverse-running wire rope during random swinging, it is prone to impact, misalignment, or even failure to detach, affecting the normal operation of the equipment and personnel safety.

[0004] Therefore, there is an urgent need for a device that can guide the chairlift to complete the reversal smoothly, safely and reliably. To this end, a reversal device for an elevated chairlift is proposed. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a reversing device for an elevated passenger chair, which overcomes the shortcomings of the prior art and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reversing device for an elevated passenger chair, comprising a fixed support, a reversing track, and a guiding mechanism.

[0007] The fixed bracket is used to securely install the entire device onto the terminal support structure (such as a beam or column) of the elevated passenger vehicle.

[0008] The reversing track is fixed to the connecting arm of the fixed bracket by bolts or welding.

[0009] The core of the reversing track is a smoothly machined, curved channel specifically designed for the chairlift's cable gripper. The curvature of this channel is designed to be greater than 90 degrees and less than 180 degrees, preferably between 150 and 170 degrees. This angle range ensures that the cable gripper completes most of the turning within the channel, and after exiting the channel, only a small natural swing is needed to accurately engage the reverse steel cable. This achieves forced guidance while avoiding friction and jamming caused by excessive constraint. The reversing track is made of wear-resistant steel plate, either bent or cast in one piece, and its inner wall is polished smooth to reduce friction.

[0010] The guiding mechanism is located at the entrance end of the reversing track. Its function is to center and guide the gripper as it approaches the reversing track, preventing it from colliding with the track entrance. Preferably, the guiding mechanism includes at least one pair of guide rollers, symmetrically arranged on both sides of the arc-shaped channel entrance. The rotation axis of the guide rollers is specially designed to form a certain angle with the horizontal plane, so that the wheel surfaces of the two rollers form a "trumpet-shaped" guiding structure, which can smoothly "capture" and guide the gripper approaching from different angles into the arc-shaped channel. The guide rollers can be made of nylon or polyurethane coated material, which has the advantages of wear resistance, shock absorption, and noise reduction.

[0011] As a preferred embodiment of this invention, it may further include a buffer device located at the exit end of the reversing track. When the cable gripper completes its turn and flies off the track, the buffer device can absorb its remaining kinetic energy, effectively suppressing its swing amplitude, allowing it to more smoothly and accurately align with the reverse-running wire rope and complete the engagement.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By using mechanical tracks to force-guide the reversal, the risk of collision and derailment caused by the chairlift swinging randomly is completely avoided, greatly improving the safety of personnel transportation; the entire reversal process is completed within a smooth arc track without violent shaking, significantly improving the riding comfort.

[0014] 2. The structure is simple, sturdy and durable, requiring no complex power and control systems, with a low failure rate, and is suitable for the harsh working environment of underground coal mines; the device can be adapted to various models of cable grippers, and only requires slight adjustment of the cross-sectional dimensions of the arc-shaped channel according to the shape of the cable gripper, making it easy to promote. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the reversing track structure of this utility model.

[0018] In the diagram: 1. Fixed bracket; 11. Connecting arm; 2. Reversing track; 21. Arc-shaped channel; 3. Guide roller; 4. Buffer device. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-3 A reversing device for an elevated passenger chair mainly includes a fixed support 1, a reversing track 2, and a guide mechanism.

[0021] The fixed bracket 1 is made of channel steel and steel plate welded together and fixed to the support structure of the roof or side wall of the underground roadway by anchor bolts or strong clamps.

[0022] The reversing track 2 is a precisely calculated arc-shaped bend made of 15mm thick wear-resistant NM400 steel plate, rolled and welded together. The reversing track 2 is fixedly mounted to the fixed bracket 1 via connecting arm 11. Its internal arc-shaped channel 21 has a bending angle of approximately 160 degrees and a rectangular cross-section, slightly larger than the outer contour of the cable gripper, ensuring smooth passage and appropriate clearance for the cable gripper. The inner wall of the track is polished and very smooth.

[0023] At the entrance of the reversing track 2, a guiding mechanism is installed. This mechanism consists of a pair of polyurethane-coated guide rollers 3. The two guide rollers 3 are mounted on a bracket via bearings and shafts, and their installation angle causes the working surfaces of the two rollers to form a V-shaped flare, which can effectively guide the obliquely approaching cable holder into the entrance of the arc-shaped channel 21.

[0024] Below the exit of the reversing track 2, there is a rubber buffer device 4. When the gripper completes its turn and flies out, its bottom will slightly collide with the rubber buffer block to absorb energy and reduce sway.

[0025] Working Principle: When the chairlift reaches the end with the load-bearing cable, the cable grip detaches from the wire rope (the detachment mechanism is existing technology and not shown in the figure), and moves forward under inertia. First, the head of the cable grip contacts the guide roller 3 of the guide mechanism, and under the guidance of the roller, it aligns and smoothly enters the arc-shaped channel 21 of the reversing track 2. The cable grip slides along a preset 160-degree arc path within the channel, completing the forced reversal. When it slides out of the exit, its direction of movement is basically parallel to the reverse-moving wire rope. At this time, the buffer device 4 suppresses its residual sway after exiting the bend, allowing the cable grip to stably and accurately align the engagement part with the reverse-moving load-bearing cable, achieving a safe engagement and completing the entire reversing process.

[0026] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 according to the specific circumstances.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reversing device for an elevated passenger chairlift, characterized in that: The device includes a fixed bracket (1), a reversing track (2), and a guiding mechanism. The fixed bracket (1) is used to be fixedly connected to the terminal support structure of the overhead passenger vehicle. The reversing track (2) is fixedly installed on the fixed bracket (1) through a connecting arm (11). An arc-shaped channel (21) is formed inside the reversing track (2) for the cable holder of the chairlift to pass through. The bending angle of the arc-shaped channel (21) is greater than 90 degrees and less than 180 degrees. The guiding mechanism is set at the entrance end of the reversing track (2) and is used to guide the cable holder to smoothly enter the arc-shaped channel (21).

2. The reversing device for an elevated passenger chairlift according to claim 1, characterized in that: The curvature of the arc-shaped channel (21) is between 150 and 170 degrees.

3. The reversing device for an elevated passenger chairlift according to claim 1, characterized in that: The guiding mechanism includes at least one pair of guide rollers (3), which are symmetrically arranged on both sides of the entrance of the arc-shaped channel (21). The rotation axis of the guide rollers (3) forms a certain angle with the horizontal plane, and their wheel surfaces form a funnel-shaped guiding structure.

4. The reversing device for an elevated passenger chairlift according to claim 3, characterized in that: The guide roller (3) is a nylon or polyurethane coated roller.

5. The reversing device for an elevated passenger chairlift according to claim 1, characterized in that: The reversing track (2) is made of wear-resistant steel plate by bending or casting, and its inner wall is smooth.

6. The reversing device for an elevated passenger chairlift according to claim 1, characterized in that: The cross-sectional shape of the arc-shaped channel (21) is adapted to the outline of the gripper.

7. The reversing device for an elevated passenger chairlift according to claim 1, characterized in that: It also includes a buffer device (4), which is located at the exit end of the reversing track (2) and is used to reduce the swing of the gripper after reversing.

8. The reversing device for an elevated passenger chairlift according to claim 7, characterized in that: The buffer device (4) is a buffer block made of rubber.

Images