SQ series endless continuous tractor -SQ1 host

The SQ series endless rope continuous tractor is a coal mine auxiliary transportation system that is pulled by steel wire ropes, and is equipped with endless rope traction winches, five-wheel heavy hammer tensioning devices, hydraulic tensioning devices, shuttle cars, tail wheels, main and auxiliary pressure rope pulley groups, rope supporting pulley groups, and turning wheel groups. Leakage communication system, electronic control protection system. It is mainly used in underground working faces, uphill and downhill mining areas, and centralized track lanes. It directly utilizes the existing underground track system to achieve continuous and direct transportation without transfer. It is suitable for ordinary rail transportation under long-distance, large inclination, variable slope, and large tonnage industrial and mining conditions. It mainly solves the transportation of materials, equipment, and personnel in working faces, especially the overall transportation of hydraulic supports. It can also be used for underground roadway and surface rail transportation in metal mines.

Product category and technical parameter table (mechanical speed regulation)

System characteristics

The system mainly consists of a main machine part, an auxiliary machine part, and supporting electrical parts. The main engine is composed of a winch; The auxiliary machine part is composed of a tensioning device, a shuttle car, a tail wheel, a wheel set, etc; The supporting part consists of a comprehensive protection device with endless rope, a mining flameproof vacuum reversible magnetic starter, a steel wire rope, and a leakage communication system.
A practical new auxiliary transportation system creatively developed by the endless rope tractor, which draws on some excellent technologies of rope traction rail cars and references the experience of traditional endless rope tractors, is a perfect and further improvement of the underground auxiliary transportation system, and has the following characteristics:
① High reliability. The winch adopts mechanical transmission mode.
② Industrial control display, button control, centralized signal control, easy to operate. It greatly improves the operability and visibility of workers and reduces the physical consumption of operating drivers.
③ Flexible system layout. The winch can be arranged facing the track, parallel to the track, or perpendicular to the track. The steel wire rope is in the same track, or the main rope can be arranged inside the track while the auxiliary rope is arranged outside the track.
④ Strong adaptability and wide use. The endless rope tractor can be used not only in the chute, but also in the uphill (downhill) mining area, as well as in the centralized track roadway, auxiliary inclined shaft, and supporting services after excavation.
⑤ Easy to configure and install. It is equipped with main and auxiliary rope pressing pulley groups, rope supporting pulley groups, and turning pulley groups, with strong rope pressing capacity and small turning radius, which can adapt to the transportation requirements of fluctuating ramps and horizontal turns. Flexible fixation, convenient disassembly and movement.

Product Type and Technical Parameters Table (Variable Frequency Speed Regulation)

System Composition

SQ series endless rope continuous tractor generally has winches, tensioning devices, shuttles, tail wheels, rope-pressing wheels, rope-supporting wheels and supporting electronic control, etc., which are combined into a transport system by wire ropes.

Winch main engine

The winch is the power source of the whole system and has a variety of structural forms. According to the speed regulation mode is divided into mechanical speed regulation; Frequency conversion speed regulation, according to the friction wheel divided into parabola and rope groove type two structures. Parabolic friction wheel has one wheel and two wheels. The winch is mainly composed of base, reducer, roller part, coupling, electro-hydraulic brake, manual brake and other components. Rope diameter ratio of driving drum is more than 50 times, in line with MT/T998-2006 standard requirements.

tensioning gear

It can absorb the elongated part of the wire rope system due to elastic deformation. At the same time, it can provide tension for the winch and ensure that the wire rope has a stable positive pressure on the line lining of the coil drum. The tensioning device is composed of heavy weight tensioning and hydraulic tensioning. Due to the restricted height of roadway, it is not suitable to use heavy weight tensioning, hydraulic tensioning device can be equipped, which can be arranged in the head or the tail of the machine. The tensioning device is equipped with tensioning force reduction protection device, which meets the requirements of Coal Mine Safety Regulations. The tensioning device is divided into three rounds and five rounds, which are selected according to the slope size and roadway length.

shuttle car

The shuttle car is used to connect the mine car, flat car, material car and other cars, and has the function of broken rope protection and fixed, storage rope function. The front and back ends are contacts, which connect the train. Shuttle car mainly consists of the following parts: frame, storage rope drum, wheel assembly, etc. Shuttle car has 600mm and 900mm rail distance two specifications, divided into the following types: normal light shuttle car, heavy shuttle car, hydraulic brake shuttle car and so on.

Guide wheel set

Used to change the direction of the wire rope, to guide the rope to change the role.

tailblock

The tail wheel or return rope station is fixed in the terminal of the distance, supporting the reaction of the whole system, the steel wire rope can also play a fixed role, and with the advance of the working face, can be conveniently moved to achieve the change of the distance. When transporting the support, the tailwheel must be fixed with cement foundation. In other cases, the tailwheel can be fixed with anchor rod or other methods. Tailwheel has single tailwheel, double tailwheel, big tailwheel and through type tailwheel, according to user requirements and specific conditions of the roadway.

Tailwheel retaining seat

Used to fix tailwheel and support system traction.

wheels

In order to adapt to the fluctuation and change of the ramp, there are wheel sets along the way, which can not only prevent the vehicle from falling off the road when the wire rope is raised, but also avoid the friction of the wire rope on the roadway floor. Including the main press rope wheel group, auxiliary press rope wheel group, rope support wheel group and crossing wheel group. The main press rope wheel has two wheel sets, also has three wheel sets; According to the different way of laying rope, the wheel group is divided into the inner wheel group and the outer wheel group.

Leakage communication and electronic control protection system

Equipped with leakage communication/signal system and the integrated protection device of the winch. The former has the function of dot, call, emergency stop, etc.; The latter is based on imported high-speed programmable controller (PLC) as the core, with professional man-machine interface, with real-time monitoring, speed display, position display, emergency stop, over-winding and over-releasing, over-speed, underspeed and other protective functions, and with fork road voice warning, along the road voice communication and other functions, and the electric control switch of the endless rope winch to achieve automatic control of the winch.

The variable frequency control system can realize the start-stop control, positive and negative operation control, acceleration and deceleration speed control, manual and automatic operation control of the winch. To realize the brake start-stop and start-stop control; All controls are integrated on the same operating platform. The operating platform is equipped with 10.4 "color LCD screen to display the operating state and fault state of the system, mainly including current and voltage display, speed display and shuttle car running position display. The monitoring screen has the roadway diagram (with special section marks such as slope change points, forks, bends, etc.). The system has the function of real-time detection and control for the winch with the endless rope. Run once automatically reset zero, eliminate accumulated error, and can be modified according to different field conditions. Four quadrant operation with 100% energy feedback function; Overload capacity 200%; Anti-interference to other electrical equipment in the mine; The protection functions of load and frequency converter are complete, such as: over current, over/under voltage, power/load phase loss, overload, power instant power failure, short circuit and other protection functions.

钢丝绳布置在轨道内侧

钢丝绳均布置在轨道内侧，该布置方式适用于单道往返式运输。

主要优点
① 尾轮不影响其它车辆通过，可实现其它车辆更远距离的运行；
② 由于尾轮的固定与轨道不发生关系，当运距需要变化时，可快速方便地移动尾轮，节省巷道空间

布置示意图

The wire rope is arranged inside and outside the track

This arrangement is suitable for single-channel round-trip transportation. One wire rope is arranged on the center line of the track, and the other wire rope is arranged on the outside of the track.

major advantage
(1) The diameter of the tail wheel is not limited, which can be designed according to the requirements of the rope diameter ratio. The working condition of the rope is better and the life is relatively long.
② The wire rope outside the track has nothing to do with the running vehicle, the pressure rope and the support rope are convenient, can achieve a structure, strong interchangeability;
(3) The wire rope runs smoothly during ultra-long distance transportation;
④ the ability of wire rope to avoid turnout is strong;
⑤ the interference problem of shaft card is solved.

Layout diagram