CN205858957U

CN205858957U - In double half, ring is from pretension three-point contact ball bearing

Info

Publication number: CN205858957U
Application number: CN201620750573.0U
Authority: CN
Inventors: 李洪亮; 郭长建; 赵文胜
Original assignee: WENZHOU C&U AUTOMOBILE BEARING CO Ltd
Current assignee: WENZHOU C&U AUTOMOBILE BEARING CO Ltd
Priority date: 2016-07-14
Filing date: 2016-07-14
Publication date: 2017-01-04
Anticipated expiration: 2026-07-14

Abstract

This utility model relates to a kind of double half interior ring from pretension three-point contact ball bearing, including bearing outer ring, double half inner rings, spin, and cross sectional shape is U-shaped, ring-type punching press cup, spin and bearing outer ring, raceway three point contact between double half inner rings coordinates, punching press cup includes axially extended sleeve part, the axial two ends of sleeve part are provided with the turned-out axial back-up ring in footpath and surround annular fitting recess, double half inner rings are assemblied in fitting recess, wherein half inner ring be interference fitted on sleeve part fix half inner ring, second half inner ring is activity half inner ring with sleeve part matched in clearance, fix half inner ring and movable half inner ring axially between matched in clearance, it is embedded with between movable half inner ring and adjacent axial back-up ring and constitutes the flexible member that axial elasticity pushing tow coordinates.Said structure eliminates the original play between spin and raceway groove, reduces the play of bearing, improves rigidity, and flexible member can vibrate by absorption system, decreases the transmission of vibration.

Description

In double half, ring is from pretension three-point contact ball bearing

Technical field

This utility model relates to technical field of bearings, is specifically 3 angular contact ball bearings, more precisely be double half Interior ring three-point contact ball bearing.

Background technology

Three-point contact ball bearing has more preferable rigidity relative to common deep groove ball bearing, but three-point contact ball bearing is deposited At original play, bearing yet suffers from shifting amount；Exist when vibration occasion uses this bearing at some and there is play, cause bearing Raceway groove fretting wear, muting function are bad, and precision is the highest.

Summary of the invention

The present utility model purpose: for the defect overcoming prior art to exist, this utility model provides a kind of structure to set Meter is rationally, it is achieved zero original play, have high stiffness, and in double the half of good damping result, ring are from pretension three point contact ball axle Hold.

For achieving the above object, this utility model provides following technical scheme:

In a kind of double half, ring is from pretension three-point contact ball bearing, including bearing outer ring, double half inner ring and spin, bearing Outer ring and double half inner ring are provided with corresponding matching and form the raceway groove of raceway, and spin is assemblied in raceway, and spin connects with raceway 3 Touch and coordinate, it is characterised in that: also including cross sectional shape is U-shaped, ring-type punching press cup, and punching press cup includes axially prolonging The sleeve part stretched, the axial two ends of sleeve part are provided with the turned-out axial back-up ring in footpath and surround the fitting recess of annular, in described double half Circle is assemblied in fitting recess, and the wherein half inner ring of double half inner rings is half inner ring of fixing being interference fitted on sleeve part, and double half Second half inner ring of inner ring is activity half inner ring with sleeve part matched in clearance, fix half inner ring and movable half inner ring axially between Matched in clearance, is embedded with flexible member between movable half inner ring and adjacent axial back-up ring, movable half inner ring is axial with adjacent Constitute axial elasticity pushing tow through flexible member between back-up ring to coordinate.

By using technique scheme, punching press cup realizes the installation of double half inner ring, will double half inner rings one of them is solid Fixed, another is movable, coordinates through flexible member pushing tow, flexible member between movable half inner ring and the axial back-up ring of punching press cup By half movable inner ring to half fixing inner ring pushing tow, half movable inner ring pushing tow spin, it is ensured that spin contacts with double half inner rings Reliably, spin is simultaneously movable to the raceway groove of bearing outer ring, and flexible member is applied with axial level pressure pretension, thus eliminates spin and ditch Original play between road, thus reduce the play of bearing, improve rigidity；Additionally, flexible member can absorption system Vibration, decreases the transmission of vibration, improves Consumer's Experience, and example is shaken as used in can effectively reduce steering wheel on steering gear tubing string Dynamic.

Preferably, described flexible member is wavy spring packing ring.

Preferably, the outer circumference surface of described sleeve part is step shaft-like, sleeve part include big footpath section that external diameter is bigger and The path section that external diameter is less, described half inner ring interference of fixing is in the section of big footpath, and movable half inner ring is in the way of matched in clearance It is sleeved in path section.

Preferably, being additionally provided with retainer between described bearing outer ring and double half inner ring, spin is assemblied on retainer, spin Through retainer even partition.

Below in conjunction with the accompanying drawings this utility model is further described.

Accompanying drawing explanation

Fig. 1 is that the double half interior ring of this utility model specific embodiment is from pretension three-point contact ball bearing structural representation；

Fig. 2 is the partial enlarged view of part A in Fig. 1；

Fig. 3 is this utility model specific embodiment punching press cup structure schematic diagram；

Fig. 4 is this utility model specific embodiment wavy spring gasket construction schematic diagram.

Detailed description of the invention

Seeing accompanying drawing 1 to accompanying drawing 4, disclosed in this utility model, a kind of double half interior ring are from pretension three-point contact ball bearing, It is provided with corresponding matching including bearing outer ring 1, double half inner ring 2,3 and spin 4, bearing outer ring 1 and double half inner ring 2,3 and forms rolling The raceway groove in road, spin 4 is assemblied in raceway, and spin 4 coordinates composition three-point contact ball bearing with raceway three point contact, also includes Having cross sectional shape is U-shaped, ring-type punching press cup 5, and punching press cup 5 includes axially extended sleeve part 51, sleeve part 51 Axially two ends are provided with the turned-out axial back-up ring in footpath 52,53, sleeve part 51 and two axial back-up rings 52,53 and surround annular assembling Groove 50, described double half inner rings 2,3 are assemblied in fitting recess 50, and the wherein half inner ring 2 of double half inner rings 2,3 is for being interference fitted in set Fixing half inner ring 2 in cylinder portion 51, second half inner ring 3 of double half inner rings is activity half inner ring 3 with sleeve part 51 matched in clearance, Fix half inner ring 2 and movable half inner ring 3 axially between matched in clearance, embedding between movable half inner ring 3 and adjacent axial back-up ring 53 Equipped with flexible member 6, constitute axial elasticity pushing tow through flexible member 6 between movable half inner ring 3 and adjacent axial back-up ring 53 and join Close.Be achieved in that axial level pressure pretension, flexible member by half movable inner ring to half fixing inner ring pushing tow, half movable inner ring Pushing tow spin, spin is close to bearing outer ring channel to fixing while half inner ring moves, thus eliminates between spin and raceway groove Original play, reduces the play of bearing, improves rigidity；Additionally, flexible member can vibrate by absorption system, decrease and shake Dynamic transmission, improves Consumer's Experience, and example is as used in can effectively reduce steering wheel vibration sense on steering gear tubing string.

Flexible member 6 therein can use flexible rubber packing ring, volute spring or helical spring or radiation fins etc., this Using described flexible member 6 in specific embodiment is wavy spring packing ring.It is little that wavy spring packing ring has thrust, sealing effectiveness Good feature, compact conformation, the advantage such as easy to assembly.

Interference fit and the matched in clearance of movable half inner ring of half inner ring is fixed in guarantee preferably, described sleeve part 51 Outer circumference surface is step shaft-like, and sleeve part 51 includes big footpath section 511 that external diameter is bigger and the less path section 512 of external diameter, institute Stating and fix half inner ring 2 interference in big footpath section 511, movable half inner ring 3 is sleeved on path section 512 in the way of matched in clearance On.Simple in construction, easy to process, the internal orifice dimension difference that certainly may be used without double half inner ring realizes.

Good, between described bearing outer ring 1 and double half inner ring 2,3 for ensureing angular contact ball bearing motion stabilization, load performance Being additionally provided with retainer 7, spin 4 is assemblied on retainer 7, and spin 4 is through retainer 7 even partition.

Claims

1. double half interior ring are from a pretension three-point contact ball bearing, including bearing outer ring, double half inner ring and spin, outside bearing Circle and double half inner ring are provided with corresponding matching and form the raceway groove of raceway, and spin is assemblied in raceway, spin and raceway three point contact Coordinate, it is characterised in that: also including cross sectional shape is U-shaped, ring-type punching press cup, and punching press cup includes axially extending Sleeve part, the axial two ends of sleeve part are provided with the turned-out axial back-up ring in footpath and surround the fitting recess of annular, described double half inner rings Being assemblied in fitting recess, the wherein half inner ring of double half inner rings is half inner ring of fixing being interference fitted on sleeve part, in double half Second half inner ring of circle is activity half inner ring with sleeve part matched in clearance, fix half inner ring and movable half inner ring axially between Gap coordinates, and is embedded with flexible member, movable half inner ring and adjacent axial gear between movable half inner ring and adjacent axial back-up ring Constitute axial elasticity pushing tow through flexible member between circle to coordinate.

In the most double half, ring is from pretension three-point contact ball bearing, it is characterised in that: described flexible member For wavy spring packing ring.

In the most according to claim 1 or claim 2 double half, ring is from pretension three-point contact ball bearing, it is characterised in that: described sleeve The outer circumference surface in portion is step shaft-like, and sleeve part includes big footpath section that external diameter is bigger and the less path section of external diameter, described solid Fixed half inner ring interference is in the section of big footpath, and movable half inner ring is sleeved in path section in the way of matched in clearance.

In the most according to claim 1 or claim 2 double half, ring is from pretension three-point contact ball bearing, it is characterised in that: described bearing Being additionally provided with retainer between outer ring and double half inner ring, spin is assemblied on retainer, and spin is through retainer even partition.