CN209228870U

CN209228870U - Nonstandard four point contact is usherd to seat roller bearing units

Info

Publication number: CN209228870U
Application number: CN201822021732.5U
Authority: CN
Inventors: 陈庆熙; 王冰; 赵荣多; 李飞燕; 李碧梅; 刘静; 陈太平
Original assignee: TCB BEARING MANUFACTURING Co Ltd
Current assignee: TCB BEARING MANUFACTURING Co Ltd
Priority date: 2018-12-04
Filing date: 2018-12-04
Publication date: 2019-08-09
Anticipated expiration: 2028-12-04

Abstract

The utility model embodiment discloses a kind of nonstandard four point contact and ushers to seat roller bearing units, including bearing block and four-point contact ball；Bearing block offers bearing mounting hole, and the inner surface of the bearing mounting hole is Internal Spherical Surface；Four-point contact ball, for nonstandard four point contacts roller bearing units, it includes at least outer ring, inner ring and the steel ball between outer ring and inner ring, the first contact angle a1 and the second contact angle a2 are formed between the line and bearing sagittal plane of the contact point of steel ball and inside and outside circle annular channel, the outer surface of outer ring is spherical outside surface, and the spherical outside surface of outer ring is matched with the Internal Spherical Surface of the bearing mounting hole on bearing block.The utility model embodiment, both radial load can be born, it can also bear axial load, or radial and axial connected load is born simultaneously, and there is higher load-carrying ability, higher tilting moment can be also born simultaneously, even if by tilting moment automatic aligning correction can also be carried out by the spherical outside surface of its outer ring and the Internal Spherical Surface of bearing block mounting hole.

Description

Nonstandard four point contact is usherd to seat roller bearing units

Technical field:

The utility model relates to a kind of rolling bearing units, especially a kind of nonstandard four point contact is usherd to seat roller bearing units.

Background technique:

Rolling bearing units are by rolling bearing and the combined bearing unit of bearing block, because its is easy to install and use, accounts for Bit space is small and maintenance cost is low and is used widely.Existing four-point contact ball of usheing to seat, generally comprise bearing seat, Outer ring, inner ring, several steel balls and retainer between Internal and external cycle.In practical applications, if installation shaft declivity is inclined Greatly or there are when long shaft deflection, bending, large axial force or tilting moment can be generated, because it cannot achieve automatic aligning, will be led Bearing is caused quickly to damage.

Summary of the invention:

To overcome the problems, such as that existing four-point contact ball of usheing to seat cannot achieve automatic aligning, the utility model embodiment is mentioned A kind of nonstandard four point contact has been supplied to usher to seat roller bearing units.

Nonstandard four point contact is usherd to seat roller bearing units, including bearing block and four-point contact ball；

Bearing block offers bearing mounting hole, and the inner surface of the bearing mounting hole is Internal Spherical Surface；

Four-point contact ball is nonstandard four point contacts roller bearing units, includes at least outer ring, inner ring, Yi Jishe Between the line and bearing sagittal plane of the contact point of steel ball between outer ring and inner ring, steel ball and inside and outside circle annular channel Form the first contact angle a1 and the second contact angle a2, the outer surface of outer ring is spherical outside surface, on the spherical outside surface and bearing block of outer ring The Internal Spherical Surface of bearing mounting hole matches.

The utility model embodiment can both bear radial load, can also bear axial load, or bear simultaneously it is radial and Axial connected load, and there is higher load-carrying ability, while can also bear higher tilting moment, by the outer surface of outer ring It is designed to spherical outside surface, is matched with the bearing block with Internal Spherical Surface mounting hole, even if its outer ring can also be passed through by tilting moment The Internal Spherical Surface of spherical outside surface and bearing block mounting hole carries out automatic aligning correction.

Detailed description of the invention:

It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the utility model Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings Obtain other attached drawings.

Fig. 1 is that nonstandard four point contact of the utility model embodiment is usherd to seat the sectional structure exploded pictorials of roller bearing units Figure；

Fig. 2 is the structural schematic diagram of the bearing block of the utility model embodiment；

Fig. 3 is the portion the A enlarged drawing of Fig. 1.

Specific embodiment:

The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below In conjunction with accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific implementation described herein Example is only used to explain the utility model, is not used to limit the utility model.

Roller bearing units, including bearing block 4 and four-point contact ball as shown in Figure 1, a kind of nonstandard four point contact is usherd to seat Bearing.

Bearing block 4 offers bearing mounting hole 41, and the inner surface of the bearing mounting hole 41 is Internal Spherical Surface；

Four-point contact ball, be nonstandard four point contacts roller bearing units, include at least outer ring 1, inner ring 2 and The line and bearing of the contact point of steel ball 3 between outer ring 1 and inner ring 2, steel ball 3 and inside and outside circle annular channel are radially flat The first contact angle a1 and the second contact angle a2 are formed between face, the outer surface of outer ring 1 is spherical outside surface, the spherical outside surface and axis of outer ring 1 The Internal Spherical Surface for holding the bearing mounting hole 41 on seat 4 matches.

Further, non-limiting as preferred embodiments of the present invention, as shown in Figure 1 and Figure 2, on bearing block 4 Locating notch 42 is offered, the locating notch 42 is for preventing outer ring 1 from rotating in a circumferential direction with respect to bearing mounting hole 41.Specifically, fixed The detent balls 13 of position notch 42 and 1 spherical outside surface of outer ring cooperate.

Still further, non-limiting as preferred embodiments of the present invention, as shown in Figure 1 and Figure 2, positioning is lacked Mouth 42 is opened in Internal Spherical Surface along axial direction.Structure is simple.

Further, non-limiting as preferred embodiments of the present invention, as shown in Figure 1 and Figure 2, Internal Spherical Surface On set there are two locating notch 42, two locating notches 42 are located at the same side of bearing block 4, and are symmetrically set.Structure is simple.

Further, non-limiting as preferred embodiments of the present invention, as shown in Fig. 2, bearing block 4 is outer Surface is equipped with lubricating oil filling mouth 43, offers oil-way 44 in the Internal Spherical Surface of bearing block 4, oil-way 44 adds with lubricating oil Geat 43 is interconnected, meanwhile, oil-way 44 is also interconnected with the oilhole 12 opened up on outer ring 1.Structure is simple, profit Sliding effect is good.

Further, non-limiting as preferred embodiments of the present invention, as shown in Figure 1, the first contact angle a1 It is 28 ° with the second contact angle a2.While guaranteeing axial bearing capacity, it can meet than usually bigger radial bearing capacity need It asks.

Still further, it is non-limiting as preferred embodiments of the present invention, as shown in Figure 1, left end face And/or right side is equipped with dust-proof composite structure.Structure is simple, and dust-proof effect is good.

Further, non-limiting as preferred embodiments of the present invention, as shown in Figure 1, dust-proof combination is tied Structure includes set on the dust slinger 21 and sealing ring 11 between inner ring 2 and outer ring 1.Structure is simple, and dust-proof effect is good.

Further, non-limiting as preferred embodiments of the present invention, as shown in Figure 1, Figure 3, this is practical In novel dust-proof composite structure,

Dust slinger 21, is fixedly arranged on 2 outer peripheral surface of inner ring, and lateral surface and 1 end face of outer ring are located at same sagittal plane；

Sealing ring 11 is located at 21 inside of dust slinger, and the upper end is flush-mounted in the mounting groove of 1 inner surface of outer ring, and lower end is close Envelope lip offsets with 2 appearance surface elastic of inner ring, and the first dust-proof chamber 10 is formed between sealing ring 11 and dust slinger 21.Structure letter Single, dust-proof composite structure is easy for installation, and dust-proof effect is good.

Still further, it is non-limiting as preferred embodiments of the present invention, as shown in Figure 1, Figure 3, outside inner ring 2 Circumferential surface is equipped with axial socket part 22 and positioned at 22 inside of socket part and above the annular protrusion of socket part 22 23, dustproof baffle Circle 21 is installed in socket part 22, and sealing lip and the 22 appearance surface elastic of socket part of sealing ring 11 offset, the sealing lip of sealing ring 11 The second dust-proof chamber 20 is formed between medial surface and the lateral surface of annular protrusion 23.First dust-proof chamber 10 and the second dust-proof chamber 20 mutually partitions, structure is simple, forms multiple independent dust-proof chamber, and dust-proof effect is good.

Further, non-limiting as preferred embodiments of the present invention, as shown in Figure 1, Figure 3, outside inner ring 2 The annular channel of circumferential surface is opened in annular protrusion 23.Structure is simple, and dust-proof effect is good, and the radial direction for being conducive to improve bearing is held Loading capability.

Further, non-limiting as preferred embodiments of the present invention, as shown in Figure 1, inner ring 2 or so two The socket part 22 at end protrudes from the corresponding end surface of outer ring 1.Structure is simple.

Still further, it is non-limiting as preferred embodiments of the present invention, as shown in Figure 1, being opened up on outer ring 1 There is oilhole 12, oilhole 12 is extended radially through from 1 spherical outside surface of outer ring to 1 inner surface of outer ring.Structure is simple, lubricant effect It is good.

It is the one or more embodiments provided in conjunction with particular content as described above, does not assert the tool of the utility model Body implementation is only limited to these instructions.It is all approximate with the method for the utility model, structure etc., identical or practical new for this Several technology deduction or replace are made under type concept thereof, all should be considered as the protection scope of the utility model.

Claims

Roller bearing units, including bearing block and four-point contact ball 1. nonstandard four point contact is usherd to seat, which is characterized in that

Bearing block offers bearing mounting hole, and the inner surface of the bearing mounting hole is Internal Spherical Surface；

Four-point contact ball is nonstandard four point contacts roller bearing units, includes at least outer ring, inner ring and is set to outer It is formed between the line and bearing sagittal plane of the contact point of steel ball between circle and inner ring, steel ball and inside and outside circle annular channel First contact angle a1 and the second contact angle a2, the outer surface of outer ring are spherical outside surface, the bearing on the spherical outside surface and bearing block of outer ring The Internal Spherical Surface of mounting hole matches.
The roller bearing units 2. nonstandard four point contact as described in claim 1 is usherd to seat, which is characterized in that offered on bearing block Locating notch, the locating notch is for preventing outer ring from rotating in a circumferential direction with respect to bearing mounting hole.
The roller bearing units 3. nonstandard four point contact as claimed in claim 2 is usherd to seat, which is characterized in that locating notch is along axial It is opened in Internal Spherical Surface.
The roller bearing units 4. nonstandard four point contact as claimed in claim 3 is usherd to seat, which is characterized in that Internal Spherical Surface is equipped with two A locating notch, two locating notches are located at the same side of bearing block, and are symmetrically set.
The roller bearing units 5. such as described in any item nonstandard four point contacts of Claims 1-4 are usherd to seat, which is characterized in that bearing The outer surface of seat is equipped with lubricating oil filling mouth, offers oil-way in the Internal Spherical Surface of bearing block, oil-way adds with lubricating oil Geat is interconnected.
The roller bearing units 6. such as described in any item nonstandard four point contacts of Claims 1-4 are usherd to seat, which is characterized in that first Contact angle a1 and the second contact angle a2 is 28 °.
The roller bearing units 7. such as described in any item nonstandard four point contacts of Claims 1-4 are usherd to seat, which is characterized in that bearing Left side and/or right side are equipped with dust-proof composite structure.
The roller bearing units 8. nonstandard four point contact as claimed in claim 7 is usherd to seat, which is characterized in that dust-proof composite structure packet Include the dust slinger and sealing ring being set between inner ring and outer ring；

Dust slinger, is fixedly arranged on inner ring outer peripheral surface, and lateral surface and cycle surface are located at same sagittal plane；

Sealing ring is located on the inside of dust slinger, and the upper end is flush-mounted in the mounting groove of inner surface, lower end sealing lip and inner ring Appearance surface elastic offsets, and the first dust-proof chamber is formed between sealing ring and dust slinger.
The roller bearing units 9. nonstandard four point contact as claimed in claim 8 is usherd to seat, which is characterized in that inner ring outer peripheral surface is equipped with Axial socket part and on the inside of the socket part and above the annular protrusion of socket part, dust slinger is installed in socket part, close The sealing lip of seal offsets with socket part appearance surface elastic, between the sealing lip medial surface of sealing ring and the lateral surface of annular protrusion Form the second dust-proof chamber.
The roller bearing units 10. nonstandard four point contact as claimed in claim 9 is usherd to seat, which is characterized in that inner ring left and right ends Socket part protrude from the corresponding end surface of outer ring.