CN209294244U

CN209294244U - A sealing nylon cages double-row self-aligning roller bearing

Info

Publication number: CN209294244U
Application number: CN201821984247.1U
Authority: CN
Inventors: 闫慧菊; 洪斌; 张继云
Original assignee: HUANGSHI RENBEN BEARING CO Ltd
Current assignee: HUANGSHI RENBEN BEARING CO Ltd
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2019-08-23
Anticipated expiration: 2028-11-28

Abstract

The utility model relates to self-aligning roller bearing technical fields, especially a sealing nylon cages double-row self-aligning roller bearing, including race bearing and inner-ring bearing, the inner-ring bearing is double raceway inner ring bearings, and the race bearing is connected to outside the inner-ring bearing, being socketed in outside the inner-ring bearing between the race bearing and the inner-ring bearing has the first retainer and the second retainer, end face is by compressing connection between first retainer and second retainer, roller is connected between first retainer and second retainer, the roller uses II grade of roller, roundness control is at 0.8 μm or less, percent ripple is controlled at 1.5 μm or less, roughness Ra controls below 0.5, two sides are connected with sealing element between the race bearing and the inner-ring bearing, the utility model valence Lattice are cheaply easy to spread, and operation vibration low noise, long service life.

Description

A sealing nylon cages double-row self-aligning roller bearing

Technical field

The utility model relates to self-aligning roller bearing technical field more particularly to a sealing nylon cages double-row self-alignings Roller bearing.

Background technique

The self-aligning roller bearing used on elevator traction machine, to the vibrating noise of bearing, sealing reliability has very high want It asks, common brass solid cage price is higher, and is unfavorable for environmental requirement, and stamped steel retainer vibrating noise is difficult to meet It is required that conventional sealing structure is not able to satisfy the reliability seal request of aligning, conventional roller is easy to draw in assembling process Hurt raceway, cause vibrating noise larger, cannot meet the requirements.

Utility model content

Purpose of the utility model is to solve existing in the prior art, self-aligning roller bearing material cost is big, and vibration is made an uproar The shortcomings that sound cannot be met the requirements, and a sealing nylon cages double-row self-aligning roller bearing proposed.

To achieve the goals above, the utility model adopts the technical scheme that

A sealing nylon cages double-row self-aligning roller bearing, including race bearing and inner-ring bearing are designed, it is described interior Enclosing bearing is double raceway inner ring bearings, and the race bearing is connected to outside the inner-ring bearing, the race bearing and institute State to be socketed between inner-ring bearing outside the inner-ring bearing and have the first retainer and the second retainer, first retainer and Second retainer is a kind of mutually isostructural nylon cages, and first retainer and the second retainer phase The one end connect is continuously fixed with salient point and concave point, and can be mutually clamped, first retainer and second retainer it Between be connected with roller, two sides are connected with sealing element between the race bearing and the inner-ring bearing.

Preferably, the race bearing and the inner-ring bearing are completed the process using super grinding.

Preferably, the roller uses II grade of roller, and roundness control is at μm hereinafter, percent ripple is controlled at μm hereinafter, thick Rugosity Ra control is in hereinafter, an end chamfer that roller connects with the inner-ring bearing and opening up pilot angle.

Preferably, the sealing element uses RS structure, and the sealing element is using double with race bearing and inner-ring bearing The structure that lip connects.

The utility model proposes a sealing nylon cages double-row self-aligning roller bearing, beneficial effect is: using The nylon cages of PA46-30GF material keep the self-lubricating effect of bearing more preferable by special RS structure, and can subtract Few friction of the roller to retainer, while when elevator traction machine needs positive and negative rotation, there is more good stability, and make It is long with the service life.

Detailed description of the invention

Fig. 1 be the utility model proposes a sealing nylon cages double-row self-aligning roller bearing sectional structure signal Figure；

Fig. 2 be the utility model proposes a sealing nylon cages double-row self-aligning roller bearing internal structure signal Figure.

In figure: race bearing 1, inner-ring bearing 2, roller 3, sealing element 4, the first retainer 5, the second retainer 6.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

Referring to Fig.1-2, a sealing nylon cages double-row self-aligning roller bearing, including race bearing 1 and inner-ring bearing 2, inner-ring bearing 2 is double raceway inner ring bearings, and race bearing 1 is connected to outside inner-ring bearing 2, race bearing 1 and inner ring axis It holds 2 to complete the process using super grinding, being socketed between race bearing 1 and inner-ring bearing 2 outside inner-ring bearing 2 has the first retainer 5 and second retainer 6, the first retainer 5 is a kind of mutually isostructural nylon cages with the second retainer 6, and is all made of One end that PA46-30GF material, the first retainer 5 and the second retainer 6 connect continuously is fixed with salient point and concave point, Neng Gouxiang Mutually engaging, and end face is kept by compressing connection, the first of PA46-30GF material between the first retainer 5 and the second retainer 6 Frame 5 and the second retainer 6, it is economically more advantageous compared with brass solid cage material, it is good for the environment use, and certainly Lubricant effect is more preferable, and the abrasion between the first retainer 5 and the second retainer 6 and roller 3 is reduced, and is more advantageous to mentioning for bearing life The weight of height, the first retainer 5 and the second retainer 6 is compared with brass solid cage, and steel plate punched retainer is lighter, more conducively axis It holds realization to operate under the conditions of height, and more and more precious in land resource, the height of floor is being continuously increased, to elevator Speed requires, thus more come revolving speed that elevator machine shaft is held also by it is higher and higher nowadays, the holding of PA46-30GF material Frame is advantageously.

Roller 3 is connected between first retainer 5 and the second retainer 6, roller 3 uses II grade of roller, and roundness control exists 0.8 μm hereinafter, percent ripple is controlled at 1.5 μm hereinafter, roughness Ra is controlled 0.5 hereinafter, what roller 3 connected with inner-ring bearing 2 One end chamfer simultaneously opens up pilot angle, avoids scratching increase of the raceway so as to cause vibrating noise, outer ring in roller assembling process Two sides are connected with sealing element 4 between bearing 1 and inner-ring bearing 2, and sealing element 4 uses RS structure, and sealing element 4 uses and outer ring The structure that bearing 1 and the equal double-lip of inner-ring bearing 2 connect, due to using special sealing structure, bearing has high sealing reliable Property, and the vibrating noise value of bearing compares brass solid cage, and stamping steel plate retainer has larger decline, especially bearing The intermediate frequency of vibration speed value, the corresponding vibration speed value of low frequency decline 20%-30%.

The utility model makes bearing by special RS structure by using the nylon cages of PA46-30GF material Self-lubricating effect it is more preferable, and friction of the roller 3 to the first retainer 5 and the second retainer 6 can be reduced, while in elevator When traction machine needs positive and negative rotation, there is more good stability, and long service life.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims

1. a sealing nylon cages double-row self-aligning roller bearing, including race bearing (1) and inner-ring bearing (2), described interior Enclosing bearing (2) is double raceway inner ring bearings, and the race bearing (1) is connected to the inner-ring bearing (2) outside, and feature exists In being socketed in outside the inner-ring bearing (2) between the race bearing (1) and the inner-ring bearing (2) has the first retainer (5) and the second retainer (6), first retainer (5) are a kind of mutually isostructural nylon with second retainer (6) Retainer, and one end for connecting of first retainer (5) and second retainer (6) is continuously fixed with salient point and recessed Point, and can be mutually clamped, it is connected with roller (3) between first retainer (5) and second retainer (6), it is described outer Two sides are connected with sealing element (4) between circle bearing (1) and the inner-ring bearing (2).

2. a sealing nylon cages double-row self-aligning roller bearing according to claim 1, which is characterized in that described outer Circle bearing (1) and the inner-ring bearing (2) are completed the process using super grinding.

3. a sealing nylon cages double-row self-aligning roller bearing according to claim 1, which is characterized in that the rolling Sub (3) use II grade of roller, and roundness control is at 0.8 μm hereinafter, percent ripple is controlled at 1.5 μm hereinafter, roughness Ra control is 0.5 Hereinafter, an end chamfer that the roller (3) connects with the inner-ring bearing (2) and opening up pilot angle.

4. a sealing nylon cages double-row self-aligning roller bearing according to claim 1, which is characterized in that described close Sealing (4) uses RS structure, and the sealing element (4) with the equal double-lip of race bearing (1) and inner-ring bearing (2) using connecting Structure.