What types of hoists are there?

HL-type ring chain machine, HL-type ring chain centrifugal bucket elevator, consists of a moving part (hopper and traction chain), an upper section with a driving sprocket, a lower section with a tensioning wheel, an intermediate shell, a driving device and a non-return braking device. The hoppers of this hoist are arranged intermittently, and the "take-out" method is used for charging and the "centrifugal feeding" method for discharging. The traction mechanism of this crane is two endless chains. Working principle of TH series bucket elevator: TH series bucket elevator is suitable for conveying powdery, granular and small-sized materials without grinding or less grinding. TH type is a chain-link bucket elevator, which uses mixing or gravity to discharge and excavate and charge. High-quality alloy steel high-grade circular chain for traction parts. The middle shell is divided into two forms: single channel and double channel, which is the constant and automatic tension of the heavy hammer box in the machine. The sprocket adopts a combined structure with replaceable rims. Long service life and simple wheel rim replacement. The lower part adopts gravity automatic tensioning device, which can keep constant tension and avoid slipping or chain dropping. At the same time, the hopper has a certain tolerance when it encounters jamming caused by accidental factors, which can effectively protect the lower shaft and other components. Bucket hoist is suitable for conveying powdery, granular and small ground grinding materials with bulk density less than 1.5t/m3. Such as coal, cement, gravel, sand, fertilizer, grain, etc. TH bucket elevator is used for vertical transportation of various bulk materials. Suitable for conveying powdery, granular and small block materials, and the material temperature is below 250℃. Ne series plate chain machine and NE series plate chain bucket elevator are inflow feeding machines. The material flows into the hopper, is lifted to the top by the plate chain, and is automatically discharged under the gravity of the material. This series of hoists has many specifications (ne15 ~ ne800 * * *11kind) and heavy lifting capacity; And can gradually replace other types of hoists. The main parameters are shown in the table below. The machine adopts fully enclosed shell, which has low chain speed and almost no material return, so it has less reactive power loss, low noise and long service life. DZC vibration machine, DZC series motor vibration vertical hoist consists of lifting groove, vibration motor, vibration damping system and base. This series of hoists take the vibration motor as the vibration source, and the center lines of two vibration motors of the same model fixed on the lifting groove cross at a certain angle and rotate in opposite directions. The centrifugal force component generated by the eccentric block of the vibration motor at each instant in the rotation process reciprocates in the throwing direction, so that the whole machine supported on the shock absorber vibrates continuously, and the material moves upward while being thrown into the lifting groove. After falling into the feed tank, the material begins to be thrown out, and it can fully contact with the air at this time. The elevator can vertically convey powdery, blocky and short fiber solid materials (except those with high viscosity and easy caking), and can also dry and cool the materials. There are two structures: open and closed. And can be specially designed according to the needs of users. Hydraulic press and hydraulic hoist are a kind of shearless hydraulic lifting platform. It is suitable for the transfer of goods between floors of industrial workshops, restaurants and restaurants on the second and third floors. The low height of the table is 150-300mm, which is more suitable for installation and use in workplaces where it is impossible to dig holes. The platform does not need the upper lifting point, and has various forms (single column, double column and four column), stable operation, simple and reliable operation and landing. Mobile material hoists are mostly used for cargo handling in warehouses, docks and other places. Moving materials to improve opportunities will help you a lot. The solid structure and reliable performance make these devices display their talents in various workplaces. They can safely lift goods weighing 454 kilograms to a height of 8 meters, and each equipment can be operated and moved easily. Mine hoist is a kind of large hoisting machinery and equipment. The motor drives the mechanical equipment to drive the steel wire rope to drive the container to lift in the shaft to complete the conveying task. Mine hoist is gradually evolved from the original water lifting tool. Modern mine hoists have great lifting capacity, high speed and high safety, and have developed into fully automatic heavy mining machinery controlled by computers. Mine hoist is mainly composed of motor, reducer, drum (or friction wheel), braking system, depth indicating system, speed measuring and speed limiting system and control system. It is driven by AC or DC motor. According to the working principle of hoisting wire rope, it can be divided into winding mine hoist and friction mine hoist. There are two kinds of winding mine hoists: single drum and double drum. The winding way of wire rope on the drum is similar to that of general winch. Most single cylinders have only one wire rope, which is connected to a container. Each drum of the double drum is equipped with a wire rope to connect the two containers. During operation, one container rises and the other container falls. Winding mine hoists are mostly used in mines with an annual output of 6.5438+200,000 tons and a well depth of less than 400 meters. The lifting rope of friction mine hoist is hung on the friction wheel, and the container is lifted by friction with the gasket of the friction wheel. Two ends of the hanging rope are respectively connected with the container, or one end is connected with the container, and the other end is connected with the counterweight. Friction mine hoists are divided into tower friction mine hoists (the machine room is located on the tower at the top of the shaft) and floor friction mine hoists (the machine room is directly located on the ground). According to the number of hoisting ropes, it is divided into single rope friction mine hoist and multi-rope friction mine hoist. The advantages of the latter are: thinner steel wire rope and friction wheel with smaller diameter can be used, so the unit is small in size and convenient to manufacture; Fast speed, great lifting capacity and good safety. Most of the shafts with an annual output of more than 6.5438+0.2 million tons and a well depth of less than 265.438+000 meters adopt this kind of hoist. Winding hoist, single rope winding hoist can be divided into single drum and double drum according to the number of drums: ① Single drum hoist, generally single hook hoist. One end of the wire rope is fixed on the drum, and the other end bypasses the crown block and is connected with the lifting container; When the drum rotates, the wire rope is wound or released on the drum to drive the lifting container to rise and fall. (2) Double drum hoist and double hook hoist. Two wire ropes are respectively fixed on the drum and led out from the upper part and the lower part of the drum. When the drum rotates, one lifting container rises and the other container falls. According to the shape of the drum, the winding hoist can be divided into two types: equal-diameter hoist and variable-diameter hoist. Equal diameter drum is widely used because of its simple structure, easy manufacture and low price. When the deep well is lifted, the moment is unbalanced because the length of the steel wire rope on both sides changes greatly. In the early days, the variable diameter hoist (cylindrical cone drum) was used, and now the tail rope balance is mostly used. The main components of winding hoist are spindle, drum, main bearing, rope adjusting clutch, reducer, depth indicator and brake. The drum of the double drum hoist is fixed on the main shaft, and the movable drum is connected with the main shaft through the rope adjusting clutch. The diameter of domestic drum is 2 ~ 5m. With the increase of mine depth and output, the length and diameter of wire rope also increase accordingly. Therefore, the diameter and width of the drum should also be increased, which is not suitable for deep well hoisting. During the operation of multi-rope winding hoist in ultra-deep well, the hanging length of tail rope changes greatly, and the hoisting wire rope bears great alternating stress, which affects the service life of wire rope. Tail rope is also easy to entangle in wellbore, which hinders work. At the end of 1950s, buhrer, an Englishman, designed a 3.2m-diameter double-rope multi-layer winding hoist (also known as buhrer hoist) with a lifting height of 1580 ~ 2349m and a lifting capacity of 10 ~ 20t. Friction hoist, 1938, ASEA company of Sweden installed one in Laver mine. The diameter of double-rope friction hoist 1.96m is at 1947, and the German company G.H.H installed a four-rope friction hoist in Hanover mine. Multi-rope friction hoist has the advantages of high safety, small diameter of wire rope, small diameter of guide pulley, light weight of equipment, low power consumption and low price, and has developed rapidly. Besides being used for deep vertical shaft hoisting, it can also be used for shallow vertical shaft and inclined shaft hoisting. The wire rope is placed on the guide wheel (friction wheel) of the winch, and the lifting container is hung at both ends or the balance weight (hammer) is hung at one end. When working, the friction between the winch friction pad and the steel wire rope drives the steel wire rope to lift the container. Generally, there are 2 ~ 10 wire ropes. The hoist room of the well tower is located at the top floor of the well tower, which is integrated with the well tower to save space; Wire rope is not exposed in the open air and is not corroded by rain and snow, but the tower is heavy, the construction time is long and the cost is high, so it is not suitable for earthquake areas. The machine room of floor hoist is directly located on the ground, with low derrick, small investment and good seismic performance; The disadvantage is that the wire rope is exposed in the open air and bent many times, which affects the working conditions and service life of the wire rope. The main components of multi-rope friction hoist are spindle, winch, main bearing, car groove device, reducer, depth indicator, braking device and guide wheel. Friction pads with rope grooves are installed on the surface of the winch. Liner should have high friction coefficient, wear resistance and pressure resistance, and its material directly affects the production capacity, work safety and application scope of hoist. Commonly used gasket materials are PVC or polyurethane rubber. Due to the inevitable peristalsis and sliding between the wire rope and the winch pad, the depth indicator deviates from zero when parking, so an automatic zero setting device should be set up to make the pointer automatically point to zero when parking. Grooving device is used for turning rope grooves, keeping the same diameter, which is beneficial to the uniform tension of each wire rope. In order to reduce vibration, a spring base reducer can be used. Built-in hoist, built-in friction hoist is a mechatronic whole that integrates working machine and driving machine, microelectronics technology and information technology. It is characterized in that the motor is installed on the roller or friction wheel. This integrated electromechanical whole is both a working machine and a driving machine. In addition, as a motor, it is also different from the traditional structure, not the stator outside, but the rotor inside, but just the opposite. It fundamentally changed the structural concept of the hoist. Built-in hoist started production as early as 1988, and the world's first built-in hoist was put into production in Rumberg 7 well newly built in Haus Arden Mine, Germany. The braking device of mine hoist is an important part of the hoist to ensure the safety of people and things, and its working braking and safety braking performance should meet the safety regulations. According to the structure of the brake, it can be divided into block type and disc type. Disc brake is small in size, sensitive and reliable in action, convenient in maintenance and installation, and widely used. For more information, please consult jiande city Conveying Machinery Equipment Co., Ltd., thank you!