Electric motor and elevator traction machine with the same
A technology for motors and casings, which is applied to elevators, electric components, electromechanical devices, etc. in buildings, and can solve problems affecting motor output, increased leakage flux, and complex structures, achieving high reliability and small leakage flux , The effect of high torque density
Active Publication Date: 2018-08-24
浙江西子富沃德电机有限公司
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The traditional asynchronous motor plus mechanical gearbox solution is large in size, complex in structure and low in efficiency
The multi-pole permanent magnet direct drive solution will increase the leakage flux and affect the output of the motor because of the large number of pole pairs of the motor, and in order to achieve low speed and high torque, the volume is generally large
Method used
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[0036] In order to make the object, technical solution and beneficial technical effect of the present invention clearer, the technical content and specific implementation methods of the present invention will be further described below in conjunction with the accompanying drawings.
[0037] Such as figure 1 As shown, the traction machine is composed of a motor 1 , a traction wheel 2 , a junction box 3 , a brake 4 , and an encoder 5 . The electric motor 1 is responsible for driving the traction wheel 2 to rotate. The traction sheave 2 is fixed on the front end of the shaft 106 of the motor 1, and the traction sheave 2 has a rope groove on its surface. The brake 4 is connected to the rear end of the shaft 106 of the motor 1 through a brake disc, and is responsible for braking the traction machine to stop. The encoder 5 is connected with the shaft 106 of the motor and is responsible for feeding back the rotation speed of the motor 1 .
[0038] The front bearing 105 and the rea...
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The invention discloses a motor comprising a housing, a shaft, a stator component fixed inside the housing, and a rotor component synchronously rotating with the shaft. The stator component and the rotor component are in serial distribution along the axial direction. The housing is internally equipped with a magnetic modulation component which surrounds the stator component and the rotor component, and there is a gap between the magnetic modulation component and the stator component and a gap between the magnetic modulation component and the rotor component. The magnetic modulation component is used for modulating an armature magnetic field produced after the stator component is electrified and producing a harmonic magnetic field driving the shaft at the gap outside the rotor component. The invention further discloses an elevator tractor with the motor. Low speed and high torque are achieved by using the harmonic magnetic field to transmit energy based on the permanent-magnet gear magnetic field modulation principle. Meanwhile, by adoption of a double-permanent magnet excitation mode, the motor and the elevator tractor have the characteristics of high torque density and high efficiency.
Description
technical field [0001] The invention relates to a power device of an elevator, in particular to an electric motor and an elevator traction machine with the electric motor. Background technique [0002] The elevator traction machine is the power equipment of the elevator, also known as the elevator host. The function is to convey and transmit power to make the elevator run. It is composed of motor, brake, coupling, reduction box, traction wheel, frame, guide wheel and auxiliary turning hand wheel. [0003] In the machine room, one end of the traction wire rope is connected to the car through the traction sheave, and the other end is connected to the counterweight device. In order to make the car and the counterweight in the hoistway run along the guide rails in the hoistway without rubbing against each other, guide wheels are set on the traction machine to separate the two. The gravity of the car and the counterweight makes the traction wire rope compressed in the traction...
Claims
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IPC IPC(8): H02K3/28H02K3/493H02K1/27H02K1/16B66B11/04
Inventor 李庆潘范坚坚
Owner 浙江西子富沃德电机有限公司