CN201446846U

CN201446846U - Shaft riveting hub assembly adopting integrated locating snap ring

Info

Publication number: CN201446846U
Application number: CN2009200555781U
Authority: CN
Inventors: 王鑫; 岳俊华; 贾红玲; 黎桂华
Original assignee: SHAOGUAN SOUTHEAST BEARING CO Ltd
Current assignee: SHAOGUAN SOUTHEAST BEARING CO Ltd
Priority date: 2009-04-28
Filing date: 2009-04-28
Publication date: 2010-05-05
Anticipated expiration: 2019-04-28

Abstract

The utility model relates to a shaft riveting hub assembly adopting an integrated snap ring, which comprises an outer ring, an inner ring, a rolling element and a flange hub, adopts a double row angular contact ball bearing structure, and is proved with a double row rolling element, wherein a locating snap ring is mounted between the flange hub and the outer ring, and the locating snap ring is in interference fit with the outer ring and fixed on the surface of the outer ring. By adopting the shaft riveting structure and the locating snap ring structure, the fluctuation of the bearing working clearance is reduced, and the service life of the product is prolonged; by realizing the function of pre-tightening and locking of the bearing, the axial locating can be realized automatically, and the mounting is simplified when in use; the part number of the automotive brake assembly is reduced, the total weight of the components is reduced, the mounting space is reduced, thereby realizing the purpose of energy-saving, and by designing a contact angle of 36 degrees, the utility model has the radial and axial bearing capacity.

Description

Adopt the axle riveted hub unit of integrated locating ring

[technical field]

The utility model relates to a kind of automotive hub assembly, especially relates to a kind of axle riveted hub unit that has the axial pretightening structure and can realize the integrated locating ring of employing of automatic axial location after installation.

[background technology]

At present, known automobile hub bearing is the end of bearing fixing at axle with jam nut.The shortcoming of this structure is: when cooperating assembling with axle, need nut locking inner ring end face, and will take the locking measure of actv., the working gap of bearing and pretension load are subjected to all multifactor impacts in the use, and product reliability is low; Simultaneously in the bearing process is installed, need circlip for bore of flange installation outside, to realize the axial location of bearing and automobile hub bearing, the shortcoming of this mounting structure is: when circlip for bore is installed, need to reserve certain installing space, the volume of the feasible parts that match increases, and causes the waste of space and material, and installation process is more loaded down with trivial details.

[utility model content]

In order to overcome the above-mentioned shortcoming of prior art, the utility model provides a kind of and realizes the pretension locking functions before use, need not that circlip for bore is installed, simplify install, the axle riveted hub unit of the easy to maintenance and integrated locating ring of employing that reliability is high, the utility model is installed in the drg, connect with suspension, reduce car brake assembly part number, alleviate the total weight of parts, saved installing space.

The technical scheme that its technical matters that solves the utility model adopts is: a kind of axle riveted hub unit that adopts integrated locating ring, comprise outer ring, inner ring, rolling body and flange wheel hub, adopt the double-row angular contact bal bearing structure, has the biserial rolling body, between flange wheel hub and outer ring, locating ring is housed, this locating ring and outer ring interference fit, and be fixed in the surface of outer ring.

There is the biserial raceway groove described outer ring, row inner ring and outer row inner ring in inner ring is divided into, and two inner rings respectively have a row raceway groove, are provided with a riveted construction between the row inner ring end face outside and the flange wheel hub in reaching between the inboard of the outside of row inner ring and outer ring in described.

The inboard of described outer ring is provided with parallel two ditch raceway grooves side by side, the contact surface in its cross section is the arc surface that rolling body matches, below rolling body, be provided with the two halves inner ring of the bear inner ring grooved railway that adapts with rolling body, the inner ring periphery is provided with the shelves limit that adapts with rolling body, and the active line between rolling body and the raceway groove has 31～41 ° angle of contact along between contact point common normal direction and channel plane.

Described biserial rolling body is arranged in the biserial raceway groove of outer ring, reaches the rolling body outside between outer ring raceway and bear inner ring grooved railway retainer is housed.

The beneficial effects of the utility model are: adopt axle riveted construction and locating ring structure, reduced the fluctuation of bearing working play, improved product service life; Bearing is realized the pretension locking functions before use, realizes axial location during use automatically, simplifies and installs; Reduced car brake assembly part number, alleviated the total weight of parts, reduced installing space, realized purpose of energy saving, design has 36 ° angle of contact, has axially and bearing capacity radially.

[description of drawings]

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

Fig. 2 is the partial enlarged drawing at A place among Fig. 1;

Fig. 3 is that the utility model is installed and used cutaway view;

Fig. 4 is the partial enlarged drawing at B place among Fig. 3.

Among the figure: 1-outer ring, the outer row inner ring of 2-, row inner ring in the 3-, 4-flange wheel hub, 5-rolling body, 6-retainer, the 7-combined seal ring, 8-axle riveted construction, 9-inner seal circle, 11-outside seal ring, 12-shelves limit, 13-locating ring, 14-locating ring warping part, 15-outward flange dish, 16-outward flange dish groove, the 17-outer ring raceway, the 18-bear inner ring grooved railway.

[specific embodiment]

Below in conjunction with drawings and Examples the utility model is further specified.

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of axle riveted hub unit that adopts integrated locating ring, comprise outer ring 1, outer row inner ring 2, interior row inner ring 3, flange wheel hub 4, rolling body 5, retainer 6 and combined seal ring 7, the inboard of outer ring 1 is provided with parallel twice outer ring raceway 17 side by side, the contact surface in its cross section is the arc surface that rolling body 5 matches, row inner ring 2 and Nei Lie inner ring 3 outside being provided with below rolling body 5, row inner ring 2 and Nei Lie inner ring 3 are provided with the bear inner ring grooved railway 18 and the periphery that adapt with rolling body 5 and are provided with the shelves limit 12 that adapts with rolling body 5 outside.Outside hub, be provided with parallel bear inner ring grooved railway 18 side by side on row inner ring 2 and the Nei Lie inner ring 3, and place therebetween rolling body 5 with 17 clampings of twice outer ring raceway; Between bear inner ring grooved railway 18 and the outer ring raceway 17 retainer 6 is housed, and can evenly isolates each rolling body 5, guide each rolling body 5 proper motion.Active line between rolling body 5 and outer ring raceway 17 and the bear inner ring grooved railway 18 has angle of contact α along between contact point common normal direction and channel plane, α=36 °, and this hub can bear axially and bearing capacity radially.An end is provided with a riveted construction 8 between the outside of the half-turn end face of the interior row inner ring 3 of described hub and flange wheel hub 4 end faces, can prevent effectively that row inner ring 3 gets loose from flange wheel hub 4 axle heads in the hub, guaranteeing has suitable play in the hub rotary course, prolongs the service life of hub.

Between flange wheel hub 4 and the outer ring 1 locating ring 13 is housed, locating ring 13 and outer ring 1 interference fit make it can be fixed in the surface of outer ring 1 firmly; When use adopting the axle riveted hub unit of integrated locating ring 13, need whole hub unit is packed in the outward flange dish 15 with outside race 1 external diameter interference fit; When outward flange dish 15 was installed to assigned address, locating ring warping part 14 will be absorbed in the outward flange dish groove 16, made outward flange dish 15 and hub unit that relative displacement can not take place, thereby realized the axial location of hub unit, simplify installation, reduced installing space, saved material.

Claims

1. axle riveted hub unit that adopts integrated locating ring, comprise outer ring, inner ring, rolling body and flange wheel hub, it is characterized in that: adopt the double-row angular contact bal bearing structure, has the biserial rolling body, between flange wheel hub and outer ring, locating ring is housed, this locating ring and outer ring interference fit, and be fixed in the surface of outer ring.

2. the axle riveted hub unit of the integrated locating ring of employing as claimed in claim 1, it is characterized in that: there is the biserial raceway groove described outer ring, row inner ring and outer row inner ring in inner ring is divided into, two inner rings respectively have a row raceway groove, are provided with a riveted construction between the row inner ring end face outside and the flange wheel hub in reaching between the inboard of the outside of row inner ring and outer ring in described.

3. the axle riveted hub unit of the integrated locating ring of employing as claimed in claim 1 or 2, it is characterized in that: the inboard of described outer ring is provided with parallel two ditch raceway grooves side by side, the contact surface in its cross section is the arc surface that rolling body matches, below rolling body, be provided with the two halves inner ring of the bear inner ring grooved railway that adapts with rolling body, the inner ring periphery is provided with the shelves limit that adapts with rolling body, and the active line between rolling body and the raceway groove has 31～41 ° angle of contact along between contact point common normal direction and channel plane.

4. the axle riveted hub unit of the integrated locating ring of employing as claimed in claim 1, it is characterized in that: described biserial rolling body is arranged in the biserial raceway groove of outer ring, reaches the rolling body outside between outer ring raceway and bear inner ring grooved railway retainer is housed.