What are the parts of the construction elevator and what is the civil part of the elevator?

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The simple construction elevator is composed of several parts, such as the car, the drive mechanism, the standard section, the attached wall, the chassis, the fence, the electrical system, etc., and is the manned and cargo construction machinery often used in the building, because of its unique box structure to make it comfortable and safe to ride, the construction elevator is usually used with the tower crane on the construction site, the general load capacity is 1-5 tons, and the running speed is 1-60m min.

Construction elevators are often referred to as construction hoists, but construction hoists include a broader definition, and construction platforms also belong to the construction hoist series. The simple construction elevator is composed of several parts, such as the car, the drive mechanism, the standard section, the attached wall, the chassis, the fence, the electrical system, etc., and is the manned and cargo construction machinery often used in the building, because of its unique box structure to make it comfortable and safe to ride, the construction elevator is usually used with the tower crane on the construction site, the general load capacity is 1-5 tons, and the running speed is 1-60m min.

Hoistway and machine room part This is the part of the house construction required for the normal operation of the elevator. Transmission part The transmission part is the traction machine, which is mainly composed of a motor and a steel cable. Lifting equipment part Lifting equipment generally includes car, counterweight, balance chain, guide rail, hallway.

Safety devices Safety devices generally include speed reduction devices and electrical safety equipment. Control part The control part usually refers to the electrical control equipment and necessary wiring, including control cabinets, excitation cabinets and layer selectors, etc.

The elevator is a large-scale and complex product integrating electromechanical, the mechanical part is equivalent to the human body, and the electrical part is equivalent to the human nerve. The high degree of integration of machine and electricity makes the elevator a comprehensive product of modern science and technology. For the structure of the elevator, the traditional method is to divide it into mechanical parts and electrical parts, but to describe it as a functional system, it can better reflect the characteristics of the elevator.

The following is a brief introduction to the structure of the mechanical part of the elevator, and our main purpose is how to control it.

One. Traction system The main function of the traction system is to output and transmit power to make the elevator run. The traction system is mainly composed of traction wire rope, guide wheel and anti-rope wheel.

Two. Guiding system The main function of the guiding system is to limit the freedom of movement of the car and the counterweight, so that the car and the counterweight can only be lifted and lowered along the guide rail. The guide system is mainly composed of guide rails, guide shoes and guide rail frames.

Three. Car The car is an elevator component that transports passengers and goods, and is the working part of the elevator. The car is composed of a car frame and a car body.

Four. Door system The main function of the door system is to seal the landing entrance and the car entrance. The door system consists of a car door, a landing door, a door opener, and a door lock device.

Five. Weight Balance System The main function of the system is to balance the weight of the car relatively well, and to keep the weight difference between the car and the counterweight within the limit in the elevator work, so as to ensure the normal traction transmission of the elevator. The system is mainly composed of counterweight and weight compensation devices.

Six. Electric Traction System The function of the electric traction system is to provide power and implement elevator speed control. The electric traction system is composed of a traction motor, a power supply system, a speed feedback device, a motor speed regulating device, etc.

Seven. Electrical control system The main function of the electrical control system is to operate and control the operation of the elevator. The electrical control system is mainly composed of a control device, a position display device, a control panel (cabinet), a leveling device, a layer selector, etc.

Eight. The safety protection system ensures the safe use of the elevator and prevents all accidents that endanger personal safety. It is composed of a speed limiter, a safety gear, a buffer, and an end station protection device.

machine room, hoistway, car;

An elevator refers to a permanent transportation equipment that serves a number of specific floors in a building, and its car runs on at least two rigid rails that are perpendicular to the horizontal plane or have an inclination angle of less than 15° to the plumb line. There is also a stepped type, and the tread plate is mounted on the track for continuous operation, commonly known as escalator or moving walk. Stationary lifting equipment serving the specified floors.

A vertical lift has a car that runs between at least two rows of rigid rails that are vertical or have an inclination angle of less than 15°. The size and structure of the car are convenient for passengers to enter and exit or load and unload goods. It is customary to use elevators as a general term for vertical transportation within a building, regardless of the mode of drive.

According to the speed, it can be divided into low-speed elevators (less than 4 meters second), fast elevators 4 12 meters second) and high-speed elevators (more than 12 meters second).

Hydraulic elevators began to appear in the mid-19th century, and are still used on low-rise buildings. In 1852, Otis of the United States developed a safety elevator for wire rope lifting. In the 80s, the drive device was further improved, such as the electric motor through the worm drive belt animal is winding the drum, the use of counterweight, etc.

At the end of the 19th century, friction wheel transmission was adopted, which greatly increased the lifting height of the elevator.

At the end of the 20th century, the elevator was powered by a permanent magnet synchronous traction machine. It greatly reduces the area of the computer room, and has the advantages of low energy consumption, high energy efficiency and fast lifting speed, which greatly promotes the development of real estate in the direction of super high-rise.

Answer]: B, C, Parsley D, E

This question calls for the assessment of the composition of the elevator. The elevator is generally composed of four parts: the machine room, the shaft, the Zhengshuliang car, and the landing station.

Closed balance answer]: b, c, d, e

The elevator is generally composed of four parts: machine room, hoistway, car and landing station. The elevator is usually made of eight major systems, including traction system, guidance system, car system, door system, weight balance system, drive system, control system, and full protection system.