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High-power diesel brushless direct current motor speed regulating actuator

A brushless DC motor and high-power diesel engine technology, applied in machine/engine, mechanical equipment, engine control, etc., can solve the problems of complex design, high price and cost, and complicated control of limited torque motors, and achieve compact structure and low maintenance. The effect of low cost and high control precision

Active Publication Date: 2015-04-22
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The limited angle torque motor is complex in design, high in price and cost, and complex in control
When used as an actuator, the application is limited due to its large size

Method used

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  • High-power diesel brushless direct current motor speed regulating actuator
  • High-power diesel brushless direct current motor speed regulating actuator
  • High-power diesel brushless direct current motor speed regulating actuator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0020] Implementation Case 1: Combining figure 1 and figure 2 , the present invention includes an inverted T-shaped bracket 5, a DC brushless motor 6 installed on one side of the inverted T-shaped bracket 5, and a guide sleeve 4 installed on the other side of the inverted T-shaped bracket 5, and an end cover is installed on the end of the guide sleeve 4 3. A flange 14 is arranged inside the guide sleeve 4, and the right end surface of the flange 14 is fixedly connected to one end of the reducer 12, and the other end of the reducer 12 is installed on the inverted T-shaped bracket 5, that is, the reducer 12 adopts The double fixing method ensures the strength of the present invention. The output shaft of the brushless DC motor 6 is connected to the input shaft of the reducer 12 through a coupling, and the output shaft of the reducer 12 is connected to the main shaft 2, and the large sector gear is set on the main shaft 2. 15 and the main shaft 2 is integrated with the large se...

Embodiment example 2

[0022] Implementation Case 2: Based on the above implementation cases, the present invention is respectively equipped with a left limit stopper 7 and a right limit stopper 11 on both sides of the sensor bracket 9 on the left end surface of the flange 14. The position of the stopper can be adjusted so that the maximum output angle of the main shaft 2 can be adjusted and limited, which can prevent the main shaft 2 from continuing to move due to inertia, limit the range of rotation angle of the main shaft 2, and improve the control accuracy. The sensor bracket 5 of the present invention, the left limit block 7 and the right limit block 11 are all installed in the guide sleeve 4, fastened on the flange end face of the guide sleeve 4 with screws, and sealed with the end cover 3.

Embodiment example 3

[0023] Implementation case three: Based on the above-mentioned implementation cases, the present invention sets a mouth plate 10 on the end face of the reducer 12 in contact with the inverted T-shaped bracket 5, and through the joints between the mouth plate 10 and the motor 6, the mouth plate 10 and the reducer 12 The spigot is centered to ensure that the reducer 12 is coaxial with the brushless DC motor 6 .

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Abstract

The invention provides a high-power diesel brushless direct current motor speed regulating actuator. The high-power diesel brushless direct current motor speed regulating actuator comprises an inverted T-shaped stand, a brushless direct current motor arranged on one side of the inverted T-shaped stand and a guiding sleeve arranged on the other side of the inverted T-shaped stand. The end of the guiding sleeve is provided with an end cover. A flange plate is arranged inside the guiding sleeve. The right end side of the flange plate is fixedly connected with one end of a decelerator. The other end of the decelerator is arranged on the inverted T-shaped stand. An output shaft of the brushless direct current motor is connected with an input shaft of the decelerator through a coupling joint. An output shaft of the decelerator is connected with a main shaft. A sector big gear wheel is sleeved on the main shaft. The sector big gear wheel and the main shaft are integrated as a whole. The left end side of the flange plate is provided with a sensor stand. A corner displacement sensor is arranged on the sensor stand. The sensor stand is further provided with a sector measuring gear wheel. The sector measuring gear wheel is meshed with the sector big gear wheel. The portion of the main shaft, passes through the end cover, is sleeved on a rocker arm. The rocker arm is connected with a fuel injection pump rack of a diesel engine. The high-power diesel brushless direct current motor speed regulating actuator has the advantages of being applicable to the big-power diesel, simple in structure, and high in accuracy.

Description

technical field [0001] The invention relates to a diesel engine speed-regulating actuator, in particular to a high-power diesel engine DC brushless motor speed-regulating actuator. Background technique [0002] The increasingly serious energy shortage and environmental protection issues require diesel engines to continuously improve their performance in order to reduce fuel consumption and reduce pollutant emissions. As one of the core technologies of diesel engine electronic control, electronic speed regulation technology has a significant impact on diesel engine performance, and the most critical component in diesel engine electronic speed regulation system is the actuator. At present, most of the marine diesel engines in our country use position-controlled electronic speed control actuators. According to the working principle, there are mainly three types: electromagnetic type, electro-hydraulic type and electromechanical type. [0003] Electromagnetic actuators, usually...

Claims

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Application Information

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IPC IPC(8): F02D11/10
Inventor 石勇宁一高
Owner HARBIN ENG UNIV
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