CN103516139A

CN103516139A - Sliding ring for motor

Info

Publication number: CN103516139A
Application number: CN201310005229.XA
Authority: CN
Inventors: 李乐水; 李培德; 李贤明
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-08
Filing date: 2013-01-08
Publication date: 2014-01-15

Abstract

The invention relates to a sliding ring for a winding motor, in particular to a sliding ring which is simple in structure, good in ventilation, cooling and dust-removal effect, of a novel structure and for the motor. The sliding ring for the motor comprises a sliding ring outer cover, a collecting ring, a conducting bar provided with a brush and a sliding ring wire outlet box, and is characterized in that axial ventilation holes are drilled in the collecting ring, a centrifugal fan vane is installed in each axial ventilation hole, an air inlet louver is installed on an end surface of the sliding ring outer cover, an air outlet louver is installed on a lateral surface of the sliding ring outer cover, and a windshield ring and a windshield plate used for separating cold wind and hot wind are installed between the two ends of the collecting ring and a shell. The sliding ring for the motor has the advantages that when the collecting ring rotates along a shaft of the motor, a radial ventilation cooling air duct with air entering from the two ends and exiting from the lateral surface and the bottom surface is formed inside the sliding ring, the heat and duct caused by friction between the brush and the sliding ring and electricity conduction of a conductive screw rod and the collecting ring are taken away, and the phenomena that the temperature of the sliding ring and the brush is too high, dust accumulates on the brush, and electricity discharge inside the sliding ring is caused are avoided. The sliding ring for the motor is good in ventilation, cooling and dust-removal effect, guarantees safe operation of the motor, has the significance of energy conservation and environment protection, and has the advantages of being simple in structure, low in manufacturing cost, short in production period and convenient to maintain.

Description

A kind of motor slip ring

(1) technical field

The present invention relates to a kind of coiling electric motor slip ring, especially a kind of motor slip ring of brand new of simple in structure, ventilate cooling and good dedusting effect.

(2) background technology

Coiling electric motor mainly contains following 3 kinds by the structure of slip ring at present:

1, open type or shell have the natural cooling structure of ventilation hole; 2, there is the enclosed construction of separate fan shell band radiating ribs inside; 3, the enclosed construction of water cooler is housed.The weak point of above 3 kinds of structures is all not have rationally effectively cooling air duct, and cooling effect is bad, often easily causes slip ring and brush excess Temperature, and brush dust is difficult to discharge, and after piling up, causes electric discharge, causes the accident that burns out brush and slip ring.And latter two structure also has complex structure, and cost is high, the shortcoming that operating cost is high.

(3) summary of the invention

The present invention, in order to make up the deficiencies in the prior art, provides a kind of cost simple in structure low, ventilation good cooling results, Inspection and maintenance easy maintenance, the motor slip ring of the brand new of good dedusting effect.

The present invention is achieved by the following scheme:

Motor slip ring of the present invention, on collector ring, be drilled with axial ventilation hole and centrifugal fan leaf has been installed, air inlet/outlet shutter is housed on sliding ring outer cap, nonconducting deep bead is housed between slip ring two ends and cover body, its special character is that collector ring is contained in the effect that centrifugal fan leaf on collector ring has played centrifugal fan while rotating with motor shaft, at the inner Liao Yigecong two ends air intake that forms of slip ring, from the side with the cooling air duct of bottom surface air-out.

The invention has the beneficial effects as follows: owing to forming Liao Yigecong two ends air intake in slip ring inside, from the side with the radial ventilation cooling air duct of bottom surface air-out, cooling and the dust removing effects of ventilating improves greatly, effectively prevented the rising of slip ring and brush temperature, and brush dust accumulation causes electric discharge, guaranteed that motor safety effectively moves, there is energy-conservation and environment protection significance; Because it is simple in structure, there is cost low, with short production cycle and maintenance is advantage easily.

(4) accompanying drawing explanation

Fig. 1 is the general assembly drawing of this motor with slip ring, wherein 1 is that 2 is slip ring outlet box near motor side fan shroud, and 3 is collector ring, 4 is lead end deep bead, 5 is end air feed shutter window, and 6 is side air-out shutter, and 7 is bottom surface air-out dedusting expanded metal lath, 8 is the axial ventilation hole on collector ring, 9 is the centrifugal fan leaf on collector ring, and 10 is brush, and 11 for installing the busbar of brush.

Fig. 2 is along the circumferential direction expanded view of slip ring.

Fig. 3 is the axial view of single collector ring.Wherein 1 is fan leaf, and 2 is ventilation hole, and 3 is collector ring, and 4 is the screw of fan attachment leaf.

Fig. 4 is the cutaway view of Fig. 3.

(5) embodiment

As shown in Figure 1, fan shroud 1 and the deep bead 4 at slip ring two ends can be made with non electrically conductive material, play wind-guiding and divide, thermal insulating wind action, centrifugal fan leaf 9 can form with sheet metal bending, be screwed in slip ring side, on collector ring 3, bore axial ventilation hole, when slip ring rotates with motor shaft between collector ring and the hot-air at two ends and dust be centrifuged fan leaf 9 and throw away to centrifugal direction, air outlet through housing side and bottom surface is discharged, clean cold air outside slip ring is inhaled into from the air feed shutter window of cover body both ends of the surface, through the axial ventilation hole on collector ring, be inhaled into the negative pressuren zone between collector ring, by centrifugal fan leaf 9, radially throw away again, form a radial ventilation cooling air duct, heat and the dust taking away brush and slip ring friction and conductive lever and collector ring conduction and produce, effectively prevent the excessive rising of slip ring and brush temperature, the slip ring internal discharge phenomenon of having avoided the accumulation of brush dust and having caused.

Claims

1. a motor slip ring, comprises sliding ring outer cap and collector ring (3), busbar (11) and the slip ring outlet box (2) of brush is installed.It is characterized in that: at the two ends of collector ring (3), have fan shroud (1) and deep bead (4).

2. motor slip ring according to claim 1, is characterized in that: on three collector rings (3), be drilled with axial ventilation hole (8) and centrifugal fan leaf (9) is housed.

3. motor slip ring according to claim 1, is characterized in that: sliding ring outer cap Shang You end air feed shutter window (5), side air-out shutter (6) and bottom surface air-out dedusting expanded metal lath (7).