Constant-power electric hoisting device

Abstract

The invention discloses a constant-power electric hoisting device. The hoisting device comprises a hoisting device main body, a control circuit and a bracket, wherein the hoisting device main body comprises a main motor, a main motor brake, a reduction gear assembly, a main friction cylinder assembly, an auxiliary friction cylinder assembly, a rope outlet and pressing device, a rope storage device, a motor controller and a limiting alarm device; the reduction gear assembly comprises a ratchet wheel brake mechanism, a gear III, a transmission shaft and a gear IV; the rope assembly comprises a rope, a buffer and a lifting hook; the motor controller comprises a power supply, a detection circuit, a user interface module, a motor main control circuit, a main motor control circuit and a rope storage motor control circuit; a split structure is formed between a double-friction cylinder structure consisting of the main friction cylinder assembly and the auxiliary friction cylinder assembly andthe rope storage device, and the mounting position can be determined according to needs. The constant-power electric hoisting device has the characteristics of small size, light weight, convenience indisassembly, assembly and maintenance, capability of determining the length of the rope according to needs and flexible arrangement of a rope storage mechanism.

Description

technical field [0001] The invention belongs to the field of electric hoisting devices, in particular to a constant power electric hoisting device with a rope storage mechanism. Background technique [0002] In the process of high-altitude operations, such as power system well tower operations, installation, commissioning and maintenance operations in wind turbine warehouses, it is often necessary to use electric hoisting devices with stable lifting speeds to lift heavy objects such as parts and tools. In addition, it is also used for lifting personnel and materials during high-level rescue and helicopter search and rescue, and for lifting personnel and materials on a lift. [0003] The existing electric lifting devices used in high-altitude operations, especially those used in wind power installation, commissioning and maintenance, generally use electric chain hoists. During the working process, electric chain hoists lift The speed has been kept constant. Since the general...

AI Technical Summary

Problems solved by technology

The winch with this structure uses a hydraulic system as the power source. The hydraulic system has a complex structure and a large volume, which is not suitable for use in places where space and weight are limited, and it is inconvenient to carry and install.

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