CN102447340B

CN102447340B - Bearing chamber structure for end cap of motor

Info

Publication number: CN102447340B
Application number: CN201010503781.8A
Authority: CN
Inventors: 陈方
Original assignee: Zhongshan Broad Ocean Motor Co Ltd
Current assignee: Zhongshan Broad Ocean Motor Co Ltd
Priority date: 2010-10-01
Filing date: 2010-10-01
Publication date: 2014-06-18
Anticipated expiration: 2030-10-01
Also published as: CN102447340A

Abstract

The invention discloses a bearing chamber structure for an end cap of a motor. The bearing chamber structure is characterized by comprising a bearing support wall surface (2) which protrudes at the middle of the end cap (1); the bearing support wall surface (2) encloses a bearing chamber (21); a plurality of clamping grooves (22) are arranged on the bearing support wall surface (2); the clamping grooves (22) are communicated with the bearing chamber (21) through gaps (23); rubber bars (3) are embedded inside the clamping grooves (22); and one part of each of the rubber bars (3) is extruded into the bearing chamber (21) from the gaps (23). The bearing chamber structure provides an excellent support for a bearing outer ring, is low in noise and little in vibration, and exerts a better denoising and vibration-reducing effect; a plurality of ventilation holes are arranged on the bearing support wall surface, and the outer side of an outer ring of the bearing has a larger contact area with the outside when the bearing is operated, so that the bearing chamber structure is beneficial to the temperature reduction for the bearing chamber, and a better cooling effect is achieved.

Description

A kind of bearing chamber structure for end cap of motor

Technical field:

The present invention relates to a kind of bearing chamber structure for end cap of motor.

Background technology:

The development of existing small and special electric machine more and more trends towards high accuracy, environmental protection and low noise.The cast-aluminum end cover bearing chamber that original small and special electric machine is conventional cannot meet the demand of client's proposition of ask for something harshness, these demands comprise: bearing moves low noise, low vibration and wishes that bearing chamber can have good radiating effect, so just can replace high-temperature bearing with plain bearing, reduce production costs.

Summary of the invention:

The object of this invention is to provide a kind of bearing chamber structure for end cap of motor, the low vibration of its noise is little, and the production cost of plain bearing reduction motor can be installed.

A further object of the present invention is to provide a kind of rapid heat dissipation, the bearing chamber structure for end cap of motor of good heat dissipation effect

The object of the invention is to be achieved by following technical scheme.

A kind of bearing chamber structure for end cap of motor, in the middle of being included in end cap, protrude bearings wall, bearings wall surrounds bearing chamber, several draw-in grooves are set on bearings wall, draw-in groove is communicated with bearing chamber by gap, and at the nested rubber bar in draw-in groove the inside, a part for rubber bar is from gap is expressed to bearing chamber, draw-in groove is circumferentially uniformly distributed along bearings wall, and several draw-in grooves refer to 3 to 12.

Several ventilation holes of outputing on bearings wall described above.

Ventilation hole described above is square or rectangle or triangle.

Ventilation hole described above is circumferentially uniformly distributed along bearings wall, and quantity is 3 to 16 scopes.

Bearings wall described above comprises the link block of outer wall, inwall and connection outer wall and inwall, and inwall circumferentially surrounds bearing chamber, and some ventilation holes connect inwall, link block and outer walls.

Outer wall described above is annular.

Rubber bar described above adopts chloroprene rubber material to make.

The present invention's beneficial effect is compared with prior art: 1) several draw-in grooves are set on bearings wall, draw-in groove is communicated with bearing chamber by gap, at the nested rubber bar in draw-in groove the inside, a part for rubber bar is from gap is expressed to bearing chamber, thereby provide excellent support to bearing outer ring, the low vibration of noise is little, plays good noise reduction and falls the effect of shaking; 2) on bearings wall, output several ventilation holes, in the time of bearing operation, just there is larger area contact in the outside, outer ring of bearing with the external world, like this temperature of bearing chamber is declined favourable, reaches good radiating effect; 3) bearings wall comprises outer wall, inwall and connects the link block of outer wall and inwall, and inwall circumferentially surrounds bearing chamber, and some ventilation holes connect inwall, link block and outer wall, simple and reasonable; 4) aspect ratio outer wall and the inwall of link block described above are little, above link block, form groove between outer wall and inwall, the dowel between adjacent rubber bar is nested in groove the inside, and the dowel between adjacent rubber bar is nested in groove the inside, easy to install, globality is strong.

Brief description of the drawings:

Fig. 1 is the stereogram of invention;

Fig. 2 is exploded view of the present invention;

Fig. 3 is the stereogram removing after rubber bar of the present invention;

Fig. 4 is front view of the present invention;

Fig. 5 is the A-A cutaway view of Fig. 3.

Embodiment:

Below by specific embodiment, also the present invention is described in further detail by reference to the accompanying drawings.

As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, a kind of bearing chamber structure for end cap of motor of the present invention, it protrudes bearings wall 2 in the middle of being included in end cap 1, bearings wall 2 surrounds bearing chamber 21, several draw-in grooves 22 are set on bearings wall 2, draw-in groove 22 is communicated with bearing chamber 21 by gap 23, at the draw-in groove 22 nested rubber bars 3 in the inside, a part for rubber bar 3 is from gap 23 is expressed to bearing chamber 21, draw-in groove 22 is circumferentially uniformly distributed along

bearings wall

2, 3 to 12, several draw-in groove 22 fingers, on bearings wall 2, output several ventilation holes 27, ventilation hole 27 is square or rectangle or triangle, ventilation hole 27 is circumferentially uniformly distributed along bearings wall 2, quantity is 3 to 16 scopes, bearings wall 2 comprises outer wall 24, the link block 26 of inwall 25 and connection outer wall 24 and inwall 25, inwall 25 circumferentially surrounds bearing chamber 21, some ventilation holes 27 connect inwall 25, link block 26 and outer wall 24, outer wall 24 is annulars, aspect ratio outer wall 25 and the inwall 24 of link block 26 are little, above link block 26, between outer wall 24 and inwall 25, form groove 28, dowel 31 between adjacent rubber bar 3 is nested in groove 28 the insides, and this dowel 31 is not essential, rubber bar 3, dowel 31 adopts chloroprene rubber material to make.

Operation principle of the present invention is: on bearings wall 2, output several ventilation holes 27, some ventilation holes 27 connect inwall 25, link block 26 and outer wall 24, the through bearing chamber inwall of these ventilation holes 27, in the time of bearing operation, just there is larger area contact in the outside, outer ring of bearing with the external world, decline favourable to the temperature of bearing chamber like this, reach good radiating effect, several draw-in grooves 22 are set on bearings wall 2, draw-in groove 22 is communicated with bearing chamber 21 by gap 23, at the draw-in groove 22 nested rubber bars 3 in the inside, a part for rubber bar 3 is from gap 23 is expressed to bearing chamber 21, thereby provide excellent support to bearing outer ring, play good noise reduction, the effect of shaking is fallen.

Claims

1. a bearing chamber structure for end cap of motor, it is characterized in that: it protrudes bearings wall (2) in the middle of being included in end cap (1), bearings wall (2) surrounds bearing chamber (21), several draw-in grooves (22) are set on bearings wall (2), draw-in groove (22) is communicated with bearing chamber (21) by gap (23), at draw-in groove (22) the nested rubber bar in the inside (3), (23) to be expressed to bearing chamber (21) from gap for a part for rubber bar (3), draw-in groove (22) is circumferentially uniformly distributed along bearings wall (2), several draw-in grooves (22) refer to 3 to 12.

2. a kind of bearing chamber structure for end cap of motor according to claim 1, is characterized in that: on bearings wall (2), output several ventilation holes (27).

3. a kind of bearing chamber structure for end cap of motor according to claim 2, is characterized in that: ventilation hole (27) is square or rectangle or triangle.

4. a kind of bearing chamber structure for end cap of motor according to claim 3, is characterized in that: ventilation hole (27) is circumferentially uniformly distributed along bearings wall (2), and quantity is 3 to 16 scopes.

5. a kind of bearing chamber structure for end cap of motor according to claim 4, it is characterized in that: bearings wall (2) comprises outer wall (24), inwall (25) and connects the link block (26) of outer wall (24) and inwall (25), inwall (25) circumferentially surrounds bearing chamber (21), and some ventilation holes (27) connect inwall (25), link block (26) and outer wall (24).

6. a kind of bearing chamber structure for end cap of motor according to claim 5, is characterized in that: outer wall (24) is annular.

7. a kind of bearing chamber structure for end cap of motor according to claim 6, is characterized in that: rubber bar (3) adopts chloroprene rubber material to make.