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Radiating fan controlled by moment of force and used for servo motor

A servo motor and cooling fan technology, which is applied to the components, electromechanical devices, electrical components, etc. of the pumping device for elastic fluid, can solve the problems of complicated wiring, decreased ventilation, and decreased heat dissipation capacity of the motor, so as to reduce the extra cost. Wiring, reduce fan noise, prevent the effect of high speed

Active Publication Date: 2012-08-01
NINGBO JUNWEI ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of axial flow fans also brings the following defects: 1. Additional power supply needs to be introduced, resulting in complex system and cumbersome wiring; 2. Axial flow fans are sensitive to dust, and it is easy to cause the fan to overheat and burn out in a dusty environment ;3. The protection level of the axial flow fan is not high, and it is easy to get water when working outdoors, and the dust particles will cause the fan to be burned; 4. In high altitude areas, due to the decrease of air density, the axial flow fan with constant speed also has the problem of decreased ventilation. Insufficient, resulting in a decrease in the cooling capacity of the motor

Method used

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  • Radiating fan controlled by moment of force and used for servo motor
  • Radiating fan controlled by moment of force and used for servo motor
  • Radiating fan controlled by moment of force and used for servo motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A torque-controlled cooling fan for a servo motor, comprising a front end cover 11, a rear end cover 12, a housing 2, a fan shaft 3, a fan key 31, a fan blade 32, a fan shaft bearing 33, and an oil seal 34 , Fan blade retaining ring 35, screw 4, disc shaft 5, disc shaft bearing 51, disc shaft retaining ring 52, intermediate disc shaft 6, front intermediate disc shaft bearing 63, rear intermediate disc shaft bearing 64, intermediate disc shaft bearing 65, Gear shaft 7, first-level gear 71, second-level gear 72, third-level gear 73, fourth-level gear 74, gear key 75, gear retaining ring 76, gear bearing 77, pressing plate 8, steel ball 81, steel ball sliding shoe 82 and spring 83, such as Figure 1 to Figure 5 As shown, the specific structure is:

[0034] The two ends of the housing 2 are respectively fixed with the front end cover 11 and the rear end cover 12 by screws 4, and the middle part of the inner cavity of the housing 2 is provided with a ring-shaped partition 2...

Embodiment 2

[0045] A torque-controlled cooling fan for a servo motor, comprising a front end cover 11, a rear end cover 12, a housing 2, a fan shaft 3, a fan key 31, a fan blade 32, a fan shaft bearing 33, and an oil seal 34 , Fan blade retaining ring 35, screw 4, disc shaft 5, disc shaft bearing 51, disc shaft retaining ring 52, intermediate disc shaft 6, front intermediate disc shaft bearing 63, rear intermediate disc shaft bearing 64, intermediate disc shaft bearing 65, Gear shaft 7, first-level gear 71, second-level gear 72, third-level gear 73, fourth-level gear 74, gear key 75, gear retaining ring 76, gear bearing 77, pressing plate 8, steel ball 81, steel ball sliding shoe 82 and The spring 83, the intermediate disc shaft 6 and the intermediate disc 61 are provided with 4 through holes parallel to the central axis. The central angle of the arc is 120°. Other structures and usage methods are all the same as in Embodiment 1.

Embodiment 3

[0047] A torque-controlled heat dissipation fan for a servo motor, comprising a front end cover 11, a rear end cover 12, a housing 2, a blade shaft 3, a blade key 31, a blade 32, a blade shaft bearing 33, and an oil seal 34 , Fan blade retaining ring 35, screw 4, disc shaft 5, disc shaft bearing 51, disc shaft retaining ring 52, intermediate disc shaft 6, front intermediate disc shaft bearing 63, rear intermediate disc shaft bearing 64, intermediate disc shaft bearing 65, Gear shaft 7, first-level gear 71, second-level gear 72, third-level gear 73, fourth-level gear 74, gear key 75, gear retaining ring 76, gear bearing 77, pressing plate 8, steel ball 81, steel ball sliding shoe 82 and The spring 83, the intermediate disk shaft 6, and the intermediate disk 61 are provided with 8 through holes parallel to the central axis. The central angle of the arc is 150°. Other structures and usage methods are all the same as in Embodiment 1.

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Abstract

The invention relates to the field of non-transfiguration pumps for elastic fluid, in particular to a radiating fan controlled by moment of force and used for a servo motor, which comprises a front end cover (11), a rear end cover (12), a casing (2), a fan blade shaft (3) and fan blades (32). The radiating fan is characterized by further comprising a plate shaft (5), a middle plate shaft (6), a gear shaft (7), steel balls (81) and springs (83). The plate shaft (5) is sleeved in the front end cover (11) through a plate shaft bearing (51), the middle plate shaft (6) is a step shaft, a primary gear (71) is fixedly connected with the middle of the middle plate shaft (6) through a gear key (75), and the steel balls (81), steel ball piston shoes (82) and the springs (83) are all arranged in through holes of a middle plate (61). The radiating fan is simple in structure, high in protection level and wide in application range.

Description

technical field [0001] The invention relates to the field of non-variable pumps for elastic fluids, in particular to a torque-controlled cooling fan for servo motors. Background technique [0002] The motor will emit a lot of heat when it is running. The forced air-cooled motor removes the heat in time by adding a cooling fan inside the motor. The fan blades rotate to achieve forced air cooling. In this way, the specifications of the cooling fan can be designed according to the rated speed of the motor to ensure the ventilation volume. However, since the cooling fan and the motor are always running synchronously, if the motor speed is not constant, the ventilation volume of the cooling fan cannot be kept constant, especially when When the motor is operating at low speed and high torque, the heat generated by the motor rises rapidly. However, at this time, the motor speed is low, and the ventilation volume of the cooling fan is small, which cannot meet the heat dissipation r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D29/40H02K9/06
Inventor 赵一凡王震刚
Owner NINGBO JUNWEI ELECTRICAL
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