1. How selected hoist overload limiter

2. How should hoist overload limiter Selection Electric hoist is a motor, reducer and rope reel (or chain) as one of the small lifting equipment, most also with trolley, with single-beam bridge or gantry crane, consisting of a complete lifting machinery. With small size, light weight, simple operation, easy to use features, industrial and mining enterprises, storage terminals and other places necessary lifting equipment. Cranes in the process of using different tonnage require lifting weights, and therefore need to be equipped with a real-time monitoring of lifting heavy objects, the current work situation to make judgments, make the appropriate sound and light indication, such as lifting the state of normal, full load condition overload state automated monitoring instruments. From spreader electric wire rope hoist 5 ton There are two main points: one is wire rope electric hoist (left), and the other is a ring chain hoist.electric wire rope hoist 5 ton Currently on the market circulation of electric hoist overload limiter are hoist by feedback to the instrument collection, comparing the corresponding rise since taking power structure (weight sensor), read, display, and its current weight after judgment conditions indicate, quick disconnect electric hoist crane hook over rated after weight lifting loop, so that the electric hoist can not lift heavy objects, so as to protect the electric hoist and operator safety. For the structure of electric hoist, electric hoist overload limiter is divided into one-piece (on behalf of WTZ-A20 hoist overload limiter), split (on behalf of WTZ-A60 hoist overload limiter). Integrated electric hoist overload limiter sensor and display instruments bundled sensor is next to the main use of the pressure sensor. In WTZ-A20, for example, in the selection of such overload limiter, the need to focus on electric hoist load, wire rope magnification, rope diameter and available power and other factors, its comprehensive error typically ± 0.02% FS. One advantage of electric hoist overload limiter is easy to install, explosion proof wire rope hoist low prices. Suitable for wire rope electric hoist. explosion proof wire rope hoist Split hoist overload limiter general use axle pin sensor, S-type sensors or sensor plate ring, according to the electric hoist structure, selection easy to take force sensors. In WTZ-A60, for example, in the selection of the class when the overload limiter, in providing a load hoist, wire rope magnification, rope diameter and available power and other data, you also need to install the appropriate sensors to provide the relevant parameters, in order to purchase After the overload limiter can be put into normal use. Split hoist overload limiter force more freedom to take advantage of that, you can solve more complex security hoist overload problem. Suitable for ring chain hoist.

3. Types of wire rope hoist form Part of the wire rope electric hoist are: motor, transmission, drum and wire rope. Mutual position of the motor and the reel to be roughly divided into four different types.wire rope electric hoist (1) The motor axis is perpendicular to the axis of the reel hoist using worm gear, large width aspect size, structure, bulky, low mechanical efficiency, more difficult process. Manufacturers currently have no such structure type of product. (2) parallel to the axis of the roll axis motor is an electric hoist, the advantage of a small height and length dimensions. Its disadvantage is that the large width dimension, of the packet, the manufacturing and assembly complexity. Track turning radius. (3) motor mounted on the reel inside the electric hoist, the advantage of a small length size, compact structure. Its main disadvantage is that the motor cooling conditions are poor, poor grouping, inspection, installation, maintenance, motor inconvenience, power supply unit complex.electric hoist (4) mounted on the outside of the drum motor hoist, the advantage of grouping is good, high degree of common, easily changing the lift height for easy installation and maintenance. Its disadvantages are: large length dimension.

4. Electric wire rope hoist component parts of each part of the role functions Section consisting of wire rope 3 ton electric hoist can be divided into: reducer, control box, wire rope, cone motor, push button switch.3 ton electric hoist The role and function of each part of which is as follows: Reducer: is the use of three fixed axis helical gear transmission mechanism, gears and gear shafts are heat treated alloy steel, box, cover made from high quality cast iron, assembly tightly sealed. Control Box: is the use of energy off the main circuit in case of emergency, and a trip down the fire protection section of the device with a stopper. Rope: is the use of type lifting rope, it ensures durability. Conical motor: Lifting motor with a larger dynamic moment conical rotor brake asynchronous motor, hand chain hoist no additional brake. Button switch: hand-operated type, lightweight flexible, manipulation of corded and cordless remote control in two ways.hand chain hoist