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Direct current motor

A DC motor and body technology, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems of large dust, burnt motor, unable to change the distance between the shaft center of the motor shaft and the mounting seat, etc., to prevent damage and prevent arc sparks. , to prevent the effect of not working properly

Pending Publication Date: 2021-12-07
刘炎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a DC motor to solve 1. The installation of the motor is by fixing the bottom support base. The traditional support base cannot change the distance between the shaft center of the motor and the mounting base, and the installation error will make the coupling center of the motor Uncertainty will lead to mechanical imbalance of the load and damage to the device; 2. The motor will generate heat due to long-term work. Traditional motors rely on natural cooling. In addition, the working environment is mostly very harsh, with large dust, and the dust is easy to disperse. 3. The existing graphite brushes are in direct contact with the commutator, and the graphite brushes need to be cleaned and replaced regularly, and when a large current passes through the graphite brushes and the commutator 4. When the motor is overloaded, it will cause damage to the motor

Method used

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Experimental program
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Embodiment approach

[0032] As a specific embodiment of the present invention, the body 1 further includes a first rotating shaft 4, which is movably installed in the center of the body 1, and the center of the outer surface of the first rotating shaft 4 is sleeved with A rotor 12, a stator 13 is fixed inside the body 1 at the position of the rotor 12, a commutator 14 is arranged at one end of the first rotating shaft 4, the rotor 12 penetrates the commutator 14 and is fixedly connected with the commutator 14, The outer surface of the commutator 14 is fixed with a plurality of push-pull parts 32, and the plurality of push-pull parts 32 are fixed on the inner wall of the body 1; the end of the first rotating shaft 4 close to the commutator 14 is provided with a coupling 33 , one end of the coupling 33 is fixed with a fourth rotating shaft 31, and a fan blade 34 is fixedly installed on the fourth rotating shaft 31, and an end cover 3 is fixed at an end of the body 1 close to the fan blade 34, and the f...

specific Embodiment approach

[0038] As a specific embodiment of the present invention, the push-pull member 32 includes a heat-absorbing shell 321, and a T-shaped push rod 322 is movably connected inside the heat-absorbing shell 321, and the T-shaped push rod 322 passes through the sealing ring 144 and Fixed with the moving ring 146, when the DC motor is overheated in the working process, the present invention absorbs the heat in the body 1 through the heat-absorbing shell 321, and uses the principle of thermal expansion and contraction to make the air push the T-shaped push rod 322, and then the T-shaped push rod 322 will be passed through The moving ring 146 attracted by the electromagnet group is pushed away from the surface of the sealing ring 144, thereby realizing the effect of automatic power-off when the DC motor is overheated.

[0039] As a specific embodiment of the present invention, the fixed ring 141 , the sealing ring 144 and the moving ring 146 are all made of non-conductive materials to pre...

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PUM

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Abstract

The invention discloses a direct current motor. The direct current motor comprises a machine body, an end cover is fixedly installed at one end of the machine body, a relay is fixedly installed at the rear end of the outer surface of the upper end of the machine body, a mounting base is arranged at the lower end of the machine body, the mounting base comprises fixing shafts, and the fixing shafts are fixed to the two sides of the lower end of the machine body; and a first supporting plate and a second supporting plate are rotationally connected to the fixing shaft, the bottom end of the first supporting plate and the bottom end of the second supporting plate are rotationally connected with a second rotating shaft and a third rotating shaft respectively, the second rotating shaft and the third rotating shaft are movably connected into an open groove formed in the base, and an adjusting mechanism is arranged in the open groove. The included angle between the first supporting plate and the base and the included angle between the second supporting plate and the base are changed through the adjusting mechanism, and then height adjustment of the axis of the first rotating shaft is achieved; when the fan blades rotate, air circulation in the motor is accelerated, and the heat dissipation efficiency is improved; and through the special design of the commutator, the rotor is not contacted with the electrode plates, and then the generation of arc sparks is prevented.

Description

technical field [0001] The invention relates to the technical field of DC motors, in particular to a DC motor. Background technique [0002] DC motor is a mechanical device that converts DC electric energy into mechanical energy. It is widely used in electric drive because of its good speed regulation performance. The structure of DC motor is composed of two parts: stator and rotor. It has strong versatility. It is easy to use and maintain, and the maintenance cost is low, especially the production line. At the same time, it adopts a new type of sealing device, which has good protection performance and strong adaptability to the environment. It can work continuously in harsh environments such as corrosion and humidity. [0003] In the process of realizing the present invention, it is found that at least the following problems in the prior art have not been solved: 1. The installation of the motor is through fixing the bottom support base, and the traditional support base can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/00H02K5/26H02K9/06H02K5/10H02K11/25H02K13/00H02K13/10
CPCH02K5/00H02K5/26H02K9/06H02K5/10H02K11/25H02K13/006H02K13/10H02K13/105
Inventor 刘炎吴辉
Owner 刘炎