CN102447340A

CN102447340A - Bearing chamber structure for end cap of motor

Info

Publication number: CN102447340A
Application number: CN2010105037818A
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: 2012-05-09
Anticipated expiration: 2030-10-01
Also published as: CN102447340B

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 electric motor end cap bearing chamber structure

Technical field:

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

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 aluminium end cap bearing chamber that original small and special electric machine is commonly used can't satisfy the demand that the harsh client of ask for something proposes; These demands comprise: bearing moves low noise, low vibration and hopes that bearing chamber can have better heat radiating effect; So just can replace high-temperature bearing, reduce production costs with plain bearing.

Summary of the invention:

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

Further purpose of the present invention provides the electric motor end cap bearing chamber structure of a kind of rapid heat dissipation, good heat dissipation effect.

The objective of the invention is to be achieved through following technical scheme.

A kind of electric motor end cap bearing chamber structure; Protrude the bearings wall in the middle of being included in end cap; The bearings wall surrounds bearing chamber, and several draw-in grooves are set on the bearings wall, and draw-in groove is communicated with bearing chamber through the slit; The nested rubber bar in the draw-in groove the inside, the part of rubber bar is expressed in the bearing chamber from the slit.

Above-mentioned described draw-in groove circumferentially evenly distributes along the bearings wall.

Above-mentioned several draw-in grooves refer to 3 to 12.

Above-mentioned said several ventilation holes of on the bearings wall, leaving.

Above-mentioned described ventilation hole is square or rectangle or triangle.

Above-mentioned described ventilation hole circumferentially evenly distributes along the bearings wall, and quantity is 3 to 16 scopes.

Above-mentioned described bearings wall comprises outer wall, inwall and the link block that connects outer wall and inwall, and inwall circumferentially surrounds bearing chamber, and some ventilation holes connect inwall, link block and outer wall.

Above-mentioned described outer wall is an annular.

The aspect ratio outer wall and the inwall of above-mentioned described link block are little, and above the link block, form groove between outer wall and the inwall, the dowel between the adjacent rubber bar is nested in the groove the inside.

Above-mentioned described rubber bar, dowel adopt chloroprene rubber material to process.

The present invention's beneficial effect compared with prior art is: 1) several draw-in grooves are set on the bearings wall; Draw-in groove is communicated with bearing chamber through the slit; The nested rubber bar in the draw-in groove the inside, the part of rubber bar is expressed in the bearing chamber from the slit, thereby to bearing outer ring excellent support is provided; The low vibration of noise is little, and playing preferably, the effect of shaking falls in noise reduction; 2) on the bearings wall, leave several ventilation holes, when bearing operation, just there is the larger area contact in the foreign country outside of bearing with the external world, and is favourable to the temperature decline of bearing chamber like this, reaches better radiating effect; 2) the bearings wall comprises outer wall, inwall and the link block that connects outer wall and inwall, and inwall circumferentially surrounds bearing chamber, and some ventilation holes connect inwall, link block and outer wall, and are simple and reasonable; 4) the aspect ratio outer wall and the inwall of above-mentioned described link block are little; Above the link block, form groove between outer wall and the inwall, the dowel between the adjacent rubber bar is nested in the groove the inside, and the dowel between the adjacent rubber bar is nested in the groove the inside; Easy to install, globality is strong.

Description of drawings:

Fig. 1 is the stereogram of invention;

Fig. 2 is an exploded view of the present invention;

Fig. 3 is the stereogram that removes behind the rubber bar of the present invention;

Fig. 4 is the front view after the present invention removes rubber bar;

Fig. 5 is the A-A cutaway view of Fig. 4.

Embodiment:

Below through specific embodiment and combine accompanying drawing that the present invention is described in further detail.Like Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, a kind of electric motor end cap bearing chamber structure 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, and several draw-in grooves 22 are set on bearings wall 2, and draw-in groove 22 is communicated with bearing chamber 21 through slit 23; The nested rubber bar 3 in draw-in groove 22 the insides, the part of rubber bar 3 23 are expressed to 21 li of bearing chambers from the slit, and draw-in groove 22 circumferentially evenly distributes along bearings wall 2; Several draw-in grooves 22 refer to 3 to 12, on bearings wall 2, leave several ventilation holes 27, and ventilation hole 27 is square or rectangle or triangle; Ventilation hole 15 circumferentially evenly distributes along bearings wall 2, and quantity is 3 to 16 scopes, and bearings wall 2 comprises outer wall 24, inwall 25 and the link block 26 that connects 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 27, and outer wall 24 is annulars, and the aspect ratio outer wall 25 of link block 26 is little with inwall 24; Forming groove 28 above the link block 26, between outer wall 24 and the inwall 25; Dowel 31 between the adjacent rubber bar 3 is nested in groove 28 the insides, and this dowel 31 is not essential, and rubber bar 3, dowel 31 adopt chloroprene rubber material to process.

Operation principle of the present invention is: on bearings wall 2, leave several ventilation holes 27, some ventilation holes 27 connect inwall 25, link block 26 and outer wall 24, these ventilation hole 27 through bearing chamber inwalls; When bearing operation; Just there is the larger area contact in the outside, outer ring of bearing with the external world, and is favourable to the temperature decline of bearing chamber like this, reaches better radiating effect; Several draw-in grooves 22 are set on bearings wall 2; Draw-in groove 22 is communicated with bearing chamber 21 through slit 23, the nested rubber bar 3 in draw-in groove 22 the insides, and the part of rubber bar 3 23 is expressed to 21 li of bearing chambers from the slit; Thereby to bearing outer ring excellent support is provided, plays preferably noise reduction, fall the effect of shaking.

Claims

1. electric motor end cap bearing chamber structure; 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), and several draw-in grooves (22) are set on bearings wall (2), and draw-in groove (22) is communicated with bearing chamber (21) through slit (23); The nested rubber bar (3) in draw-in groove (22) the inside, (23) are expressed to bearing chamber (21) lining to the part of rubber bar (3) from the slit.

2. a kind of electric motor end cap bearing chamber structure according to claim 1 is characterized in that: draw-in groove (22) circumferentially evenly distributes along bearings wall (2).

3. a kind of electric motor end cap bearing chamber structure according to claim 2 is characterized in that: several draw-in grooves (22) refer to 3 to 12.

4. according to claim 1 or 2 or 3 described a kind of electric motor end cap bearing chamber structures, it is characterized in that: on bearings wall (2), leave several ventilation holes (27).

5. a kind of electric motor end cap bearing chamber structure according to claim 4, it is characterized in that: ventilation hole (27) is square or rectangle or triangle.

6. a kind of electric motor end cap bearing chamber structure according to claim 5 is characterized in that: ventilation hole (15) circumferentially evenly distributes along bearings wall (2), and quantity is 3 to 16 scopes.

7. a kind of electric motor end cap bearing chamber structure according to claim 4; It is characterized in that: bearings wall (2) comprises outer wall (24), inwall (25) and the link block (26) that connects 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 (27).

8. a kind of electric motor end cap bearing chamber structure according to claim 7 is characterized in that: outer wall (24) is an annular.

9. a kind of electric motor end cap bearing chamber structure according to claim 7; It is characterized in that: the aspect ratio outer wall (25) and the inwall (24) of link block (26) are little; Between top, outer wall (24) and the inwall (25) of link block (26), form groove (28), the dowel (31) between the adjacent rubber bar (3) is nested in groove (28) the inside.

10. a kind of electric motor end cap bearing chamber structure according to claim 8 is characterized in that: rubber bar (3), dowel (31) adopt chloroprene rubber material to process.