Coupler with controllable start function
A technology of couplings and brakes, which is applied in the direction of brake types, liquid resistance brakes, mechanical equipment, etc., can solve the problems of poor safety performance, large volume of hydraulic couplings, and heavy maintenance workload, etc., and achieves easy combination and use. The effect of small dynamic torque and easy control
Inactive Publication Date: 2015-11-25
方振江
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Problems solved by technology
High-power inverters have high requirements on ambient temperature and cleanliness, are expensive, and require heat dissipation and explosion protection, which restricts their application
The hydraulic coupling has large volume, slippage, low efficiency and poor safety performance
The patent CN201739448U controllable start-up transmission device uses mechanical means to realize start-up control. However, the braking torque of the hydraulic viscous brake is very high, the friction plate has a large size and complex structure, the maintenance workload is large and the cycle is long, and the power loss is large. short life
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[0009] exist figure 1 Among them, the motor (1) is connected with the left half-shaft (2) of the bevel gear planetary mechanism, and the right half-shaft (6) is used as the output. When the hydraulic brake (5) is released, the planetary carrier (4) rotates freely, and the right half-shaft ( 6) The output torque is close to zero. Controlling the pressure of the fluid viscous brake (5) can realize gradual loading, then the speed of the left half shaft (2) will gradually decrease, and the torque of the left and right half shafts will gradually increase. When the increase is large enough, the right half shaft (6) will start to drive The load starts.
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The invention provides a coupler capable of achieving stable start. A motor is connected with a left half shaft of a bevel gear planet differential mechanism. A right half shaft is an output shaft. A planet carrier is connected with a friction plate in a hydro-viscous brake. The output torque is controlled by controlling the braking torque of the hydro-viscous brake.
Description
technical field [0001] The invention relates to a connection device with controllable start, in particular to a controllable start and stepless speed regulation device for heavy-duty equipment. Background technique [0002] The motor directly drives the load through the reducer, and the current of the motor is very large at the moment of starting, and the output torque is very large, which will not only cause impact on the power grid, but also easily cause equipment damage. At present, motor frequency conversion speed regulation and hydraulic coupling are usually used to achieve smooth start. High-power inverters have high requirements on ambient temperature and cleanliness, are expensive, and require heat dissipation and explosion protection, which restricts their application. The hydraulic coupling has large volume, slippage, low efficiency and poor safety performance. The patent CN201739448U controllable start-up transmission device uses mechanical means to realize star...
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IPC IPC(8): F16D57/00
Inventor 方振江
Owner 方振江
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