Disc type magnetic control speed governing clutch

Abstract

The invention discloses a disc type magnetic control speed governing clutch which aims at providing a speed governing clutch with small wear loss, long service life, high bearing capacity, overload protection function and speed reduction. The clutch comprises a planet transmission mechanism and a brake mechanism. The planet transmission mechanism is provided with a speed governing input end, a power input end and a power output end, wherein the speed governing input end is directly or indirectly connected with the brake mechanism. The brake mechanism comprises one or more than one brake disc 2, one or more than one linkage disc 3 and a governing mechanism 9, wherein a part of or all brake discs 2 and linkage discs 3 are provided with permanent magnets or permanent magnets showing magnetic poles on disc faces, and the rest are conductors. The brake mechanism carries out braking by means of magnetic force between the brake discs 2 and the linkage discs 3. The invention is applicable to the soft start and the soft braking of mechanical equipment.

Description

technical field [0001] The invention relates to a clutch, in particular to a disc-type magnetically controlled speed-regulating clutch capable of stepless speed regulation and used for soft starting and soft braking of mechanical equipment. Background technique [0002] At present, in heavy equipment, due to the large inertia of the moving parts, during the starting process, if the acceleration is too large, it will inevitably cause excessive starting torque. Greatly strengthen its mechanical strength, increase the weight of the machine and the manufacturing cost, on the other hand, it also requires a larger starting power, so that the driving power is much greater than the normal working power, which not only increases the manufacturing cost, but also reduces the power factor of the power source , increasing the reactive power loss, increasing the impact on the grid, and even difficult to start due to the limitation of the grid capacity. [0003] Soft start is to control t...

AI Technical Summary

Problems solved by technology

[0007] (3) The load of the structural parts is increased;

[0009] (1) The local stress of the flat belt is too low, and the belt sags or even is torn;

[0010] (2) The high and low stress ratio at both ends of the brake drum is too large, making the lifting belt slip on the brake drum

This kind of mechanical soft start device is not only complex in structure, short in life, and has high requirements for liquids, but also has high manufacturing, use and maintenance costs, making it difficult to promote on a large scale.

2. Utilize the soft start of worm gear transmission and planetary transmission mechanism. In this soft start mode, the worm gear transmission as the control mechanism requires a large control motor and adjusts the speed of the control motor. Therefore, not only the structure is complicated , and the power is also greatly limited

3. Using the soft start of hydraulic pump, hydraulic motor and planetary transmission mechanism, this structure is not only complex in structure, high in manufacturing cost, but also high in failure rate

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