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CN205154927U - Wheel hub bearing pretightning force is adjusted structure - Google Patents

Wheel hub bearing pretightning force is adjusted structure Download PDF

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Publication number
CN205154927U
CN205154927U CN201520991615.5U CN201520991615U CN205154927U CN 205154927 U CN205154927 U CN 205154927U CN 201520991615 U CN201520991615 U CN 201520991615U CN 205154927 U CN205154927 U CN 205154927U
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CN
China
Prior art keywords
wheel hub
hub bearing
bearing
spacer
adjustment pad
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Expired - Fee Related
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CN201520991615.5U
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Chinese (zh)
Inventor
李媛华
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Individual
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Individual
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Priority to CN201520991615.5U priority Critical patent/CN205154927U/en
Application granted granted Critical
Publication of CN205154927U publication Critical patent/CN205154927U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a wheel hub bearing pretightning force is adjusted structure belongs to the automobile manufacturing field. The pretightning force of interior wheel hub bearing, outer wheel hub bearing is adjusted through adjusting shim's thickness, need not to readjust during the dismouting again after pretightning force adjustment is accomplished. In wheel hub or knuckle are arranged respectively in to the outer lane of wheel hub bearing, outer wheel hub bearing in during the assembly, press axle housing or semi -axis with the inner circle of interior wheel hub bearing and roller assembly earlier on, the wheel hub assembly or the knuckle assembly that will have bearing inner race are installed on axle housing or semi -axis, then load onto spacer and adjusting shim, install the inner circle and the roller assembly of outer wheel hub bearing on axle housing or semi -axis. Between wheel hub bearing, the outer wheel hub bearing, the inner circle with interior wheel hub bearing, outer wheel hub bearing contacts respectively including adjusting shim, the spacer installation, lock nut adopts the fixed end taken about the point of fixation to screw up. The advantage lies in: can directly improve tradition wheel limit structure, simple and convenient, with low costs, the maintenance is easy, can improve the life -span of bearing and transaxle by a wide margin.

Description

Hub bearing pre-tightening force adjust structure
Technical field
The utility model relates to automobile manufacturing field, particularly a kind of hub bearing pre-tightening force adjust structure.Be applicable to all types of vehicles such as commercial car, passenger vehicle, go-anywhere vehicle, engineering machinery.
Background technique
Because tapered roller bearing has larger radial and axial bearing capacity simultaneously, be widely used in the pivoting support-hub bearing of commercial vehicle wheel.When changing hub oil seal or wheel other parts of limit in the structure of tradition wheel limit when needing repairing, need locking nut to pull down, now will destroy the initial pretightening force of hub bearing, need when reconstituted to readjust, measure wheel hub tripping force, and often tear open and once just need to readjust once.Cause maintenance load large, waste time and energy, and destroy the adjustment state of former car, if the installation experience of assembler is not enough, adjust the improper working life that can affect hub bearing.For reducing maintenance load and ensureing the pretightening force of bearing, increasing vehicle adopts hub-bearing unit at present, it is simple that hub-bearing unit has structure, without the need to measuring the advantages such as hub bearing pre-tightening force, but in hub-bearing unit, outer wheel hub bearing generally adopts the tapered roller bearing of same size, to be applied to most of commercial car that market exists, go-anywhere vehicle, the vehicles such as engineering machinery, limit structure must be taken turns and dimensional parameters is modified to it, can not directly replace, and compare common wheel hub bearing structure, manufacture cost improves a lot, integral vehicle cost is caused to increase many.
Summary of the invention
The purpose of this utility model is to provide a kind of hub bearing pre-tightening force adjust structure, solves the problems referred to above that prior art exists.Formerly take turns on the constant basis of limit structure in maintenance, reduce maintenance load, former car can be kept to adjust state constant, improve the working life of hub bearing.And structure is simple, all directly can improve, not change the dimensional parameters of original structure, can be applied to all types of vehicles such as commercial car, go-anywhere vehicle, passenger vehicle, engineering machinery for existing most of vehicle.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
Hub bearing pre-tightening force adjust structure, comprise wheel hub 1, locking nut 2, semiaxis 3, axle housing 4 or knuckle 10, inner wheel hub bearing 5, outer wheel hub bearing 6, adjustment pad 7, spacer 8, the pretightening force of described inner wheel hub bearing 5, outer wheel hub bearing 6 is adjusted by the thickness adjusting pad 7, after pretightening force has adjusted again dismounting time without the need to readjusting; The outer ring of described inner wheel hub bearing 5, outer wheel hub bearing 6 is placed in wheel hub 1 or knuckle 10 respectively, and inner ring and roller assembly are arranged on axle housing 4 or semiaxis 3 respectively; Described adjustment pad 7, spacer 8 are arranged between inner wheel hub bearing 5, outer wheel hub bearing 6, and adjustment pad 7, spacer 8 contact with the inner ring of inner wheel hub bearing 5, outer wheel hub bearing 6 respectively; Described locking nut 2 adopts fixing moment to tighten.When keeping in repair hub oil seal or other take turns limit part, owing to adjusting the existence of pad 7 and spacer 8, the bearing pre-fastening that adjusted is good can not be destroyed, during recovery, directly tighten locking nut 2 with fixed end taken about the point of fixation, without the need to readjusting bearing pre-fastening.
It is identical that the physical dimension of described wheel hub 1, locking nut 2, semiaxis 3, axle housing 4, inner wheel hub bearing 5 and outer wheel hub bearing 6 and parameter and tradition take turns limit structure; Described adjustment pad 7 and spacer 8 can directly be assemblied in the structure of tradition wheel limit.
Described adjustment pad 7 divides into groups by thickness size, selects the adjustment pad 7 of different-thickness size to combinationally use the size that can control bearing pre-fastening with spacer 8.
The beneficial effects of the utility model are: structure is simple, can directly improve tradition wheel limit structure, adjust easy, easy realization, cost is low, bearing pre-fastening can be made to maintain adjustment state when dispatching from the factory, significantly can improve the working life of bearing and ransaxle, all types of vehicles such as commercial car, go-anywhere vehicle, passenger vehicle, engineering machinery can be applied to.Practical.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a application's part, and illustrative example of the present utility model and explanation thereof, for explaining the utility model, are not formed improper restriction of the present utility model.
Fig. 1 is the cross-sectional schematic of full floationg axle structure of the present utility model;
Fig. 2 is the cross-sectional schematic of half-floating axle structure of the present utility model or slewing journal structure;
Fig. 3 is the adjustment process schematic diagram of full floationg axle structure of the present utility model;
Fig. 4 is the adjustment process schematic diagram of half-floating axle structure of the present utility model or slewing journal structure.
In figure: 1, wheel hub; 2, locking nut; 3, semiaxis; 4, axle housing; 5, inner wheel hub bearing; 6, outer wheel hub bearing; 7, pad is adjusted; 8, spacer; 9, technique sleeve; 10, knuckle.
Embodiment
Detailed content of the present utility model and embodiment thereof is further illustrated below in conjunction with accompanying drawing.
Shown in Fig. 1 and Fig. 2, hub bearing pre-tightening force adjust structure of the present utility model, comprise wheel hub 1, locking nut 2, semiaxis 3, axle housing 4 (or knuckle 10), inner wheel hub bearing 5, outer wheel hub bearing 6, adjustment pad 7, spacer 8 etc., the pretightening force of described inside and outside hub bearing 5,6 is undertaken adjusting by changing the thickness adjusting pad 7; After pretightening force has adjusted again dismounting time without the need to readjusting; Structure is simple, directly can improve, without the need to change structure parameter common wheel limit structure.The thickness of described adjustment pad 7 divides into groups according to certain rule, can be changed the pretightening force size of bearing by its thickness of choose reasonable.
Shown in Figure 3, full floationg axle structure of the present utility model is when assembling, and be pressed in wheel hub 1 respectively by the outer ring of inside and outside hub bearing 5,6, during press-in, fitting surface should be coated with a small amount of lubricant oil; The inner ring of inner wheel hub bearing 5 and roller assembly are pressed onto on axle housing 4, during press-in, the diameter of axle should be coated with a small amount of lubricant oil; Hub assembly with bearing outer ring is encased on axle housing 4, loads onto spacer 8, select the adjustment pad 7 of suitable thickness, then the inner ring of outer wheel hub bearing 6 and roller assembly are installed on axle housing 4; Load onto process sleeve 9, with power F pressing process sleeve (the pretightening force size of size needed for hub bearing of power F is determined), the moment of torsion of rotary hub 1 should within suitable scope (moment of torsion is determined according to service condition).Reach required bearing pre-fastening by the thickness changing adjustment pad 7, detecting bearing pre-fastening should carry out after lubricating and forward some circles at bearing; Load onto locking nut 2, tighten with fixing moment, and by locking nut locking.
Shown in Figure 4, half-floating axle structure of the present utility model or slewing journal structure are when assembling, and be pressed in knuckle 10 respectively by the outer ring of inside and outside hub bearing 5,6, during press-in, fitting surface should be coated with a small amount of lubricant oil; The inner ring of inner wheel hub bearing 5 and roller assembly are pressed onto on semiaxis 3, during press-in, the diameter of axle should be coated with a small amount of lubricant oil; Semiaxis 3 is encased on knuckle 10, loads onto spacer 8, select the adjustment pad 7 of suitable thickness, then the inner ring of outer wheel hub bearing 6 and roller assembly are installed on semiaxis 3; Load onto process sleeve 9, with power F pressing process sleeve (the pretightening force size of size needed for hub bearing of power F is determined), the moment of torsion rotating semiaxis 3 should within suitable scope (moment of torsion is determined according to service condition).Reach required bearing pre-fastening by the thickness changing adjustment pad 7, detecting bearing pre-fastening should carry out after lubricating and forward some circles at bearing; Load onto locking nut 2, tighten with fixing moment, and by locking nut locking.
After adopting the utility model hub bearing pre-tightening force adjust structure to adjust the pretightening force of bearing, as long as ensure the screw-down torque of locking nut, later stage dismounting can not affect the pretightening force of hub bearing.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All the utility model is done any amendment, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (3)

1. a hub bearing pre-tightening force adjust structure, it is characterized in that: comprise wheel hub (1), locking nut (2), semiaxis (3), axle housing (4) or knuckle (10), inner wheel hub bearing (5), outer wheel hub bearing (6), adjustment pad (7), spacer (8), the pretightening force of described inner wheel hub bearing (5), outer wheel hub bearing (6) is adjusted by the thickness of adjustment pad (7), after pretightening force has adjusted again dismounting time without the need to readjusting; The outer ring of described inner wheel hub bearing (5), outer wheel hub bearing (6) is placed in wheel hub (1) or knuckle (10) respectively, and inner ring and roller assembly are arranged on axle housing (4) or semiaxis (3) respectively; Described adjustment pad (7), spacer (8) are arranged between inner wheel hub bearing (5), outer wheel hub bearing (6), and adjustment pad (7), spacer (8) contacts with the inner ring of inner wheel hub bearing (5), outer wheel hub bearing (6) respectively; Described locking nut (2) adopts fixing moment to tighten.
2. hub bearing pre-tightening force adjust structure according to claim 1, is characterized in that: it is identical that the physical dimension of described wheel hub (1), locking nut (2), semiaxis (3), axle housing (4), inner wheel hub bearing (5) and outer wheel hub bearing (6) and parameter and tradition take turns limit structure; Described adjustment pad (7) and spacer (8) can directly be assemblied in the structure of tradition wheel limit.
3. hub bearing pre-tightening force adjust structure according to claim 1, it is characterized in that: described adjustment pad (7) is divided into groups by thickness size, select the adjustment pad (7) of different-thickness size and spacer (8) to combinationally use the size that can control bearing pre-fastening.
CN201520991615.5U 2015-12-04 2015-12-04 Wheel hub bearing pretightning force is adjusted structure Expired - Fee Related CN205154927U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520991615.5U CN205154927U (en) 2015-12-04 2015-12-04 Wheel hub bearing pretightning force is adjusted structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520991615.5U CN205154927U (en) 2015-12-04 2015-12-04 Wheel hub bearing pretightning force is adjusted structure

Publications (1)

Publication Number Publication Date
CN205154927U true CN205154927U (en) 2016-04-13

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CN201520991615.5U Expired - Fee Related CN205154927U (en) 2015-12-04 2015-12-04 Wheel hub bearing pretightning force is adjusted structure

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107618315A (en) * 2017-09-25 2018-01-23 中国第汽车股份有限公司 A kind of commercial vehicle commander changes oil hub assembly and its Method of Adjustment
CN109780179A (en) * 2019-01-08 2019-05-21 一汽解放汽车有限公司 A commercial vehicle main taper bearing preload structure and its assembling and adjusting method
CN110159661A (en) * 2019-04-16 2019-08-23 深圳市速腾聚创科技有限公司 The bearing pre-tightening structure of mechanical laser radar
CN110561970A (en) * 2019-09-17 2019-12-13 泰州神舟传动科技有限公司 Waterproof wheel limit system of engineering mixer truck
CN110608230A (en) * 2019-08-30 2019-12-24 杭州永固汽车零部件有限公司 A new type of automobile hub bearing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107618315A (en) * 2017-09-25 2018-01-23 中国第汽车股份有限公司 A kind of commercial vehicle commander changes oil hub assembly and its Method of Adjustment
CN109780179A (en) * 2019-01-08 2019-05-21 一汽解放汽车有限公司 A commercial vehicle main taper bearing preload structure and its assembling and adjusting method
CN110159661A (en) * 2019-04-16 2019-08-23 深圳市速腾聚创科技有限公司 The bearing pre-tightening structure of mechanical laser radar
CN110608230A (en) * 2019-08-30 2019-12-24 杭州永固汽车零部件有限公司 A new type of automobile hub bearing
CN110561970A (en) * 2019-09-17 2019-12-13 泰州神舟传动科技有限公司 Waterproof wheel limit system of engineering mixer truck

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160413

Termination date: 20171204

CF01 Termination of patent right due to non-payment of annual fee