Power conveying device and power conveying method

Abstract

The invention relates to the technical field of power conveying equipment and methods, in particular to a power conveying device and a power conveying method. The power conveying device comprises a variable-thickness planetary gear box and a torque control device. A transmission structure is arranged at the input end of the variable-thickness planetary gear box and connected with a planetary framethrough a plurality of planetary pins. Each planetary pin is sleeved with a double variable-thickness planetary gear, wherein the surface of the double variable-thickness planetary gear is provided with a first gear structure and a second gear structure. A first variable-thickness gear ring is connected with an output shaft shell on the outer side of an output shaft of the variable-thickness planetary gear box. Compared with the prior art, the power conveying device is reasonable in design and compact in structure, a driving motor can be started in a no-load mode and is stably and slowly started when loaded, the starting time is prolonged, the loading acceleration moment is lowered, and therefore the use performance of a conveying belt is improved, and the service life of the conveying belt is prolonged. Meanwhile, automatic control over controllable and flexible speed adjustment of a driving system is better facilitated, and mounting and dismounting are easy.

Description

technical field [0001] The present invention relates to the technical field of power transmission equipment and methods, in particular to a power transmission device and a power transmission method. Background technique [0002] At present, large-capacity, long-distance, and high-speed bulk material conveyors are widely used in the transportation of bulk materials such as coal and ore. There are mainly two ways to start the transmission device: one is the electrode, and the moment-limiting hydraulic Composed of a coupler and a reducer, because it is affected by the torque-limited hydraulic coupler during the drive transmission process, the start-up time is short, and the belt start cannot be precisely controlled according to the control curve requirements, and there are problems such as poor start-up stability and large impact , its serious consequences will cause transverse cracks in the conveyor belt, which becomes the biggest hidden danger of production safety; the other ...

AI Technical Summary

Problems solved by technology

Existing reducers mainly include cycloidal gear boxes, ordinary planetary gearboxes, worm gear boxes and harmonic gearboxes, among which the reduction ratio range of ordinary single-stage and double-stage planetary gearboxes is small, and worm gear boxes The deceleration ratio is large, but the input speed is low, and the application range is limited. The most critical application at present is that the cycloidal pinwheel gearbox is driven by a crankshaft, and the transmission accuracy is high, but the mechanism is complicated and the processing technology is extremely high; the harmonic gearbox is Surface contact and multi-tooth meshing, compact structure, but the output is an elastic piece cup-shaped ring, the meshing position and the output part must be elastically deformed, and the structure has poor impact resistance

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