CN204985320U

CN204985320U - Elevator is double column angular contact ball bearing for belt pulley

Info

Publication number: CN204985320U
Application number: CN201520476758.2U
Authority: CN
Inventors: 孙立松
Original assignee: (shanghai) Transmission Technology Co Ltd
Current assignee: (shanghai) Transmission Technology Co Ltd
Priority date: 2015-07-03
Filing date: 2015-07-03
Publication date: 2016-01-20
Anticipated expiration: 2025-07-03

Abstract

The utility model provides an elevator is double column angular contact ball bearing for belt pulley, includes inner circle, outer lane, a plurality of steel ball roller, holder, lubricating grease and two sealing washers, two rings of arc inner circle raceways that axial symmetry arranged have on the outer peripheral face of inner circle, be equipped with the correspondence on the inner peripheral surface of outer lane two rings of arc outer ring raceways of two rings of arc inner circle raceways have the belt tooth's socket on the outer peripheral face of this outer lane, a plurality of steel ball rollers pass through the holder is evenly located between arc inner circle raceway and the arc outer ring raceway, just the roller with arc inner circle raceway and arc outer ring raceway have 15 contact angle, lubricating grease fill in between inner circle and the outer lane, two sealing washers are fixed in respectively between the axial both sides of inner circle and outer lane. The utility model discloses bearing capacity and corrosion -resistant ability reinforce, precision height, it is longe -lived.

Description

Elevator belt wheel double-row angular contact bal bearing

Technical field

The utility model belongs to field of bearings, particularly relates to a kind of elevator belt wheel double-row angular contact bal bearing.

Background technique

At present, as shown in Figure 2, on market, elevator belt pulley mainly adopts two cover standard deep groove ball bearings 2 to be pressed into gear ring housing 3 inside, and the shortcoming that this bearing adds the combination of lining is:

1, due to the restriction in space, the bearing capacity of bearing is difficult to promote, and causes operating life low;

2, bearing press-in gear ring housing, by the extruding of matching allowance, reduces the precision of bearing;

3, due to two cover bearings play, there is some difference unavoidably for size, causes rotary course asynchronous, axial movement value is large, easily produces vibration, and noise is large, and reduces bel-drivenn efficiency, and belt wearing and tearing are also large;

4, due to working environment high humidity, product easily produces corrosion and causes early failue.

Model utility content

Based on this, for above-mentioned technical problem, provide a kind of elevator belt wheel double-row angular contact bal bearing.

For solving the problems of the technologies described above, the utility model adopts following technological scheme:

A kind of elevator belt wheel double-row angular contact bal bearing, comprise inner ring, outer ring, multiple steel ball roller, retainer, lubricating grease and two seal rings, the outer circumferential face of described inner ring have the two circle arc-like inner band raceways be axially arranged symmetrically with, the inner peripheral surface of described outer ring is provided with two circle arc-like outer band raceways of corresponding described two circle arc-like inner band raceways, the outer circumferential face of this outer ring has belt teeth groove, described multiple steel ball roller is evenly located between described arc-like inner band raceway and arc-like outer band raceway by described retainer, and described roller and described arc-like inner band raceway and arc-like outer band raceway have the wrapping angle of 15 °, described lubricating grease is filled between described inner ring and outer ring, described two seal rings are individually fixed between the axial both sides of described inner ring and outer ring.

The outer surface of described inner ring and outer ring all has zinc coat.

The axial both sides of the inner peripheral surface of described outer ring all have draw-in groove, and the outside of described seal ring is arranged in described draw-in groove.

The utility model tool has the following advantages:

1, the integrated design of inner ring, outer ring, adds inner space, steel ball roller quantity and size can be amplified, improve the bearing capacity of bearing, significantly improve the operating life of bearing;

2, Integral design avoids the problem that traditional gear ring housing and bearing interference fit affect bearing accuracy;

3, Integral design, and the form design adopting angle contacting, avoid play, the size difference of tradition two cover bearing, cause rotary course asynchronous, axial movement value is large, easily produces vibrating noise, and reduce bel-drivenn efficiency, the problems such as belt wearing and tearing;

4, adopt zinc-plated process by bearing surface, improve bearing corrosion resistance, avoid product corrosion to cause early failue.

Accompanying drawing explanation

Be described in detail below in conjunction with the drawings and specific embodiments the utility model:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of traditional elevator belt pulley two-row ball bearing.

Embodiment

As shown in Figure 1, a kind of elevator belt wheel double-row angular contact bal bearing, comprises inner ring 110, outer ring 120, multiple steel ball roller 130, retainer 140, lubricating grease and two seal rings 150.

The outer circumferential face of inner ring 110 have the two circle arc-like inner band raceways be axially arranged symmetrically with.

The inner peripheral surface of outer ring 120 is provided with two circle arc-like outer band raceways of corresponding two circle arc-like inner band raceways, the outer circumferential face of this outer ring has belt teeth groove 121.

Adopt two to overlap standard deep groove ball bearing 2 from traditional elevator Pulley shaft bearing apparatus and be pressed into gear ring housing 3 internal type different (see Fig. 2), inner ring 110 of the present utility model, outer ring 120 and on raceway be Integral design, avoid the problem that traditional gear ring housing 3 has an impact to bearing accuracy with standard deep groove ball bearing 2 interference fit; In addition, Integral design adds inner space, the quantity of steel ball roller 130 and size can be amplified, improve the bearing capacity of bearing, significantly improve the operating life of bearing.

Wherein, the outer surface of inner ring 110 and outer ring 120 all has zinc coat, improves bearing corrosion resistance, avoids product corrosion to cause early failue.

Multiple steel ball roller 130 is evenly located between arc-like inner band raceway and arc-like outer band raceway by retainer 140, and roller 130 has the wrapping angle α of 15 ° with arc-like inner band raceway and arc-like outer band raceway.

The integrated design of inner ring 110, outer ring 120, and the design of angle contacting, play, the size difference of tradition two cover standard deep groove ball bearing 2 can be avoided, cause rotary course asynchronous, axial movement value is large, easily produces vibrating noise, and reduces bel-drivenn efficiency, the phenomenons such as belt wearing and tearing, also

Lubricating grease is filled between inner ring 110 and outer ring 120, and two seal rings 150 are individually fixed between the axial both sides of inner ring 110 and outer ring 120.

Particularly, the axial both sides of the inner peripheral surface of outer ring 120 all have draw-in groove, and the outside of seal ring 150 is arranged in draw-in groove, and seal ring 150 and outer ring 120 are synchronized with the movement, with inner ring 110 relative movement.

But, those of ordinary skill in the art will be appreciated that, above embodiment is only used to the utility model is described, and be not used as restriction of the present utility model, as long as in spirit of the present utility model, all will drop in Claims scope of the present utility model the change of the above embodiment, modification.

Claims

1. an elevator belt wheel double-row angular contact bal bearing, it is characterized in that, comprise inner ring, outer ring, multiple steel ball roller, retainer, lubricating grease and two seal rings, the outer circumferential face of described inner ring have the two circle arc-like inner band raceways be axially arranged symmetrically with, the inner peripheral surface of described outer ring is provided with two circle arc-like outer band raceways of corresponding described two circle arc-like inner band raceways, the outer circumferential face of this outer ring has belt teeth groove, described multiple steel ball roller is evenly located between described arc-like inner band raceway and arc-like outer band raceway by described retainer, and described roller and described arc-like inner band raceway and arc-like outer band raceway have the wrapping angle of 15 °, described lubricating grease is filled between described inner ring and outer ring, described two seal rings are individually fixed between the axial both sides of described inner ring and outer ring.

2. a kind of elevator belt wheel double-row angular contact bal bearing according to claim 1, it is characterized in that, the outer surface of described inner ring and outer ring all has zinc coat.

3. a kind of elevator belt wheel double-row angular contact bal bearing according to claim 1 and 2, it is characterized in that, the axial both sides of the inner peripheral surface of described outer ring all have draw-in groove, and the outside of described seal ring is arranged in described draw-in groove.