Rail transfer cart
Encyclopedia
A Rail transfer cart is a kind of materials handling equipment which is widely used in modern factory
Factory
A factory or manufacturing plant is an industrial building where laborers manufacture goods or supervise machines processing one product into another. Most modern factories have large warehouses or warehouse-like facilities that contain heavy equipment used for assembly line production...

 bays. A Rail transfer cart can also be known as a motorized transfer cart, motorized transfer trolleys, table car, climbing car, crossing car.

The rail transporting car needs to run on the rails so it is necessary to pave the rails on the ground. The cart is driven by electricity
Electricity
Electricity is a general term encompassing a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning, static electricity, and the flow of electrical current in an electrical wire...

, it runs automatically under the driving force of the motor. It is a flatbed car
Flatbed trolley
Flatbed Trolleys are some of the most common form of transport in warehousing and distribution environments, for moving bulk loads. A very simple design that offer a basic flat platform with four castors and a fixed handle which is used to either push or pull the platform with the load on the...

, the table is flat and without cover(cap). For some uses the table is not flat such as ladle transfer cart or coil transfer cart.

Type of transfer cart

Rail transfer carts can be divided into the following types according to the different power supply
Power supply
A power supply is a device that supplies electrical energy to one or more electric loads. The term is most commonly applied to devices that convert one form of electrical energy to another, though it may also refer to devices that convert another form of energy to electrical energy...

 modes:

Low voltage rail transfer cart has its power supplied with single-phase 36v low voltage unit. DC motor drive
Motor drive
A motor drive, in the field of photography, is a powered film transport mechanism. Historically, film loading, advancing, and rewinding were all manually driven functions...

. The working principle: AC 380v is transformed into AC 36v by way of transformer into rails and then sent to the current rectifier
Rectifier
A rectifier is an electrical device that converts alternating current , which periodically reverses direction, to direct current , which flows in only one direction. The process is known as rectification...

 on the truck which supply 36v direct current
Direct current
Direct current is the unidirectional flow of electric charge. Direct current is produced by such sources as batteries, thermocouples, solar cells, and commutator-type electric machines of the dynamo type. Direct current may flow in a conductor such as a wire, but can also flow through...

 to DC motor.
Battery power rail transfer cart is equipped and powered with storage battery. DC motor drive, large start torque and overload ratio, no insulation
Insulation
Insulation means:* Building insulation, added to buildings for comfort and energy efficiency* Soundproofing, also known as acoustic insulation, any means of reducing the intensity of sound...

 requirement and more safer, erection convenient and low cost, no limited running distance. The battery transfer cart is widely applied for heavy manufacturing industry
Heavy industry
Heavy industry does not have a single fixed meaning as compared to light industry. It can mean production of products which are either heavy in weight or in the processes leading to their production. In general, it is a popular term used within the name of many Japanese and Korean firms, meaning...

 as well as other industries.

Cable power rail transfer cart (Cable power includes cable reel
Cable reel
A cable reel is a round, drum-shaped object such as a spool used to carry various types of electrical wires. Cable reel which can also be termed as drums have been used for many years to transport electric cables, fiber optic cables and wire products...

 and line mobile cable) Cable reel cart is equipped with cable reel which operates in hysteresis
Hysteresis
Hysteresis is the dependence of a system not just on its current environment but also on its past. This dependence arises because the system can be in more than one internal state. To predict its future evolution, either its internal state or its history must be known. If a given input alternately...

 coupling way to insure cable safe pulling and winding in and to prevent it injured. 380V power supply to YZ motor, VFD speed adjustment, largest transporting distance 200 meters. Line mobile cable cart is supported by the cable-power. One end of the cable connects the ground power, then via cable pulleys and traction wire-steel rope to the control box and at last supply electric power
Electric power
Electric power is the rate at which electric energy is transferred by an electric circuit. The SI unit of power is the watt.-Circuits:Electric power, like mechanical power, is represented by the letter P in electrical equations...

to YZ motor which makes transfer wagon work. However, the transporting distance is generally not more than 50 meters,or the cable will be wound easily.

External links

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