Rotary traction device for cableway transport systems

Abstract

The invention relates to a traction device for cableway transport systems, which is an electromechanical apparatus used to propel transport vehicles along the cableway. The device is characterised in that it comprises a rotation system, which allows traction units installed on a support to rotate about a shaft. As a result, the device maintains the traction in the system, despite being disposed on inclined sections of the cableway, and provides stability by preventing changes in the orientation of the transport system, thereby reducing possible derailments.

Description

[0001] ROTATING TRACTION DEVICE FOR CABLE TRAIL TRANSPORT SYSTEMS

[0002] TECHNICAL FIELD OF THE INVENTION

[0003] This document describes the characteristics of an electromechanical device designed to propel systems that travel along cableways. Specifically, it refers to a subsystem installed on vehicles used for loading and unloading supplies and personnel mounted on cableway systems to provide traction and balance to the vehicle. More specifically, the device is capable of rotating on a central axis, which allows freedom of movement to the drive unit and keeps the vehicle balanced in the face of variations in the cableway's height.

[0004] BACKGROUND OF THE INVENTION

[0005] The technical problem lies in the need for a device that provides traction for cable-assisted transportation systems while also giving the vehicle the flexibility to travel on straight sections and inclines. This device must also be capable of maneuvering on long-distance, fixed cable-assisted systems where there is only a single steel cable supported by lateral hooks and where there are variations in height. Based on this, the inventions detailed below are presented.

[0006] Invention CN104129728A describes a hydraulic traction system for cableways. The system includes a hydraulic motor, a hydraulic pump, a pressure relief valve, and a traction reel. The pump circulates oil to activate the hydraulic motor, which controls the traction reel via a reduction gear, thus performing the traction operation. The system pressure is adjusted by the relief valve and is load-dependent. Higher loads require higher system pressure. This invention details a reel-based traction system designed for straight cableway sections due to its operating principle and is therefore not compatible with the cableways described in the technical problem. DESCRIPTION OF THE INVENTION

[0007] The traction device with rotation for cableway transport systems, hereinafter referred to as the traction head, is an electromechanical device that is coupled to transport systems that travel along cableways (rigid steel cables along which supplies and personnel are transported), propelling the transport system and moving as part of it. The traction head reduces derailments and provides stability to the transport system.

[0008] The traction head is a device that uses a sprocket and chain system to produce traction. It consists of three sprockets interconnected by a roller chain. One of these sprockets is linked to the motor shaft, while the other two are for traction. These latter two drive the traction unit, resulting in the movement of the system.

[0009] The traction head is able to rotate on an axis at the top so that, in the event of variations in the height of the cable track, the device is able to adjust to the path without causing a tilting of the entire displacement system.

[0010] BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1. Front and back views of traction device for cableway transport systems (traction head).

[0012] Figure 2. Traction heads mounted on a cableway transport system.

[0013] Figure 3. Detailed view of the traction head assembly on the chassis of the cableway transport system.

[0014] Figure 4. Visualization of the rotation range of the traction head.

[0015] DETAILED DESCRIPTION OF THE INVENTION

[0016] The following section presents a breakdown of the figures and numbered parts, as well as a more in-depth explanation of how the invention works.

[0017] Figure 1 shows the front and back of the traction head. This includes the rotating shaft (2), traction pack support (3), traction packs (4), reinforced chain (5), head body (6), and joint.

Claims

rotary (7), traction motor (8), head base (9), traction pack pinion (10) and traction motor pinion (11). Figure 2 shows two traction heads (1) mounted on a transport system (12) by means of a cableway (13). Figure 3 shows a close-up of the traction head (1) mounted on the cable-track transport system (12). The device is secured by a screw passing through the transport system assembly and a rotational joint (7) of the device itself. Figure 4 shows the traction head's rotation capability. The traction pack support (3) can rotate around the pivot axis (2) to a maximum tilt of 24°, providing a wide compensation range. When the conveyor system needs to pass over a section where the cableway is inclined, the traction head will maintain the system's stability and orientation thanks to its rotation. The traction head is equipped with a swivel system that facilitates the rotational movement of the traction package support (3) around the rotating axis (2). This device is configured so that the axis passes through the front plane of the traction package support and is held by the head body (6). The axis is secured by pressure pins, thus ensuring its immobility while allowing the traction package support to retain a degree of freedom for rotation. CLAIMS 1. The traction device for cableway transport systems comprises: • Rotation system 2. A traction head according to claim 1, characterized in that it has a swivel system designed to preserve stability by maintaining the base of the transport system in a constant horizontal position. When the cableway tilts, the head is the only component that rotates, resulting in a significant reduction in derailments. Furthermore, the head's ability to rotate about an axis allows it to dynamically adapt to the cableway's tilt, thus enabling smooth and safe movement of the transport system.

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