CN2675941Y

CN2675941Y - Elastic body lining of composite bearing

Info

Publication number: CN2675941Y
Application number: CN 200320131518
Authority: CN
Inventors: 张经建
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-29
Filing date: 2003-12-29
Publication date: 2005-02-02
Anticipated expiration: 2013-12-29

Abstract

The utility model relates to an elastic body lining of composite bearing, comprising the association formed by an inner jacket layer (6), a middle jacket layer (7) and an outer jacket layer (8), a bearing (5), a retainer ring (4), a spacer (3), a clamp spring (2) and a rotating central axis (1). The middle part of the rotating central axis is a projecting ring-form convex step (1f), and rotating central axes (1) on both sides of the axial direction of the ring-form convex step (1f) is equipped with the bearing (5), the retainer ring (4), the spacer (3) and the clamp spring (2). The utility model has beneficial effects that after matching with the rigidity outer jacket layer, non-rigidity material is matched with a distance rod, which enables the physical property such as direct-coupling position specific heat, coefficient of elasticity and magnification ratio, etc to match; compared with the prior art, the utility model has enlarged area of cohesion and even stress, and the performances of abrasion proofing, twisting resistance, antifatigue and firm connection, etc are raised substantially; safe running can be ensured on the road which is heavy duty and is provided with complicated road status, and each technical index is remarkably superior to the prior art.

Description

The composite bearing elastomeric bushing

Technical field the utility model relates to automotive field, particularly a kind of pair of composite bearing elastomeric bushing that back axle automobile chassis balancing suspension system connects with track bar.

The chassis balancing suspension system of background technique automobile and the elastomeric bushing of track bar are the main easily worn parts of two back axle heavy-duty car balance sysmtes, 12 of car load preparations, its role is to make the load balancing when complex road surface travels of two back axle trucies to distribute, improve the whole antivibration of vehicle, torsional property.At present, the elastomeric bushing that the of the prior art pair of back axle automobile chassis balancing suspension system connects with track bar adopt elastomer directly and track bar join work, because physical parameter proportionings such as the specific heat of elastomer and rigidity structure material, elasticity coefficient, magnification imbalance, difference is bigger, thereby make parts be equipped with imprecision, connect insecurely, influence gravity balance and distribute, reduction of service life.At above-mentioned problem, the inventor provides four kinds of technological schemes in ZL03270793, ZL03276770, four patents of ZL03276771, ZL03263133, and scientific development is endless, and this technical field awaits constantly to improve and development.

Model utility content the purpose of this utility model provides the composite bearing elastomeric bushing that a kind of two back axle automobile chassis balancing suspension systems that improved connect with track bar, it is insecure that this device has overcome connection of the prior art, equipped unreasonable, deficiency such as working life is short.

The technical solution of the utility model is: a kind of pair of composite bearing elastomeric bushing that back axle automobile chassis balancing suspension system connects with track bar, comprise by interior jacket layer, middle jacket layer, the combination that jacket layer constitutes, rotary middle spindle, it is characterized in that: the convex annular step of the middle part of rotary middle spindle for protruding, on the rotary middle spindle of the axial both sides of convex annular step, be provided with bearing, back-up ring, pad, jump ring, at the convex annular step, bearing, back-up ring, the radial outside of pad is by interior jacket layer, middle jacket layer, the combination that jacket layer constitutes, bearing, back-up ring, pad is nested with on rotary middle spindle and at interior jacket layer, middle jacket layer, between the combination that jacket layer constitutes.

Jacket layer, middle jacket layer in described, the mutual socket of jacket layer is combined as a whole, and interior jacket layer, jacket layer are rigid material, and middle jacket layer is a nonrigid material.

The madial wall of jacket layer is provided with the convex annular step in described, and the convex annular step of interior jacket layer and the convex annular step and the bearing of rotary middle spindle are joined work.

Jacket layer end madial wall is provided with annular groove in described, and annular groove and pad are joined work.

Described rotary middle spindle is post shapes, the convex annular step of rotary middle spindle middle part for protruding, in the axial both sides of convex annular step is the cylindrical body of running in bearings, the rotary middle spindle two end part are irregular cylinder, it between the cylindrical body of irregular cylinder and running in bearings the thread section of assembling jump ring annular groove, assembling pad cylindrical body and assembling back-up ring, irregular cylinder is axially arranged with two planes of symmetry, irregular cylinder radially is provided with a through hole, irregular cylinder and two planes and through hole with connect track bar and join work.

Described back-up ring is provided with internal thread.

The beneficial effects of the utility model are: after nonrigid material and rigidity jacket layer are joined work, joining work with track bar, make physical property couplings such as direct point of attachment specific heat, elasticity coefficient, magnification, increase than the prior art bonded area, stressed even, wear-resisting, antitorque, endurance, connection are firm etc., and performance is greatly improved, and the utility model can guarantee safety traffic especially on the road of heavy load, road shape complexity, and every technical order significantly is better than prior art.

Description of drawings

Fig. 1 is the organigram of composite bearing elastomeric bushing;

Fig. 2 is the plan view of Fig. 1;

Fig. 3 is the rotary middle spindle structural front view of composite bearing elastomeric bushing;

Fig. 4 is the plan view of Fig. 3;

Fig. 5 is the interior jacket layer of composite bearing elastomeric bushing, middle jacket layer, jacket layer combination

The body structure plan view;

Fig. 6 is the plan view of Fig. 5.

Embodiment

Figure of description is the optimal way that the utility model is implemented, and describes the utility model in detail below in conjunction with accompanying drawing.

Fig. 1, shown in 2: the composite bearing elastomeric bushing that two back axle automobile chassis balancing suspension systems connect with track bar, by interior jacket layer 6, middle jacket layer 7, the combination that jacket layer 8 constitutes, bearing 5, back-up ring 4, pad 3, jump ring 2 rotary middle spindles 1 constitute, the convex annular step 1f of the middle part of rotary middle spindle 1 for protruding, on the rotary middle spindle 1 of the axial both sides of convex annular step 1f, be provided with bearing 5, back-up ring 4, pad 3, jump ring 2, at convex annular step 1f, bearing 5, back-up ring 4, the radial outside of pad 3 is by interior jacket layer 6, middle jacket layer 7, the combination that jacket layer 8 constitutes, bearing 5, back-up ring 4, pad 3 is nested with on rotary middle spindle 1 and at interior jacket layer 6, middle jacket layer 7, between the combination that jacket layer 8 constitutes.Described back-up ring 4 is provided with internal thread.

Fig. 3, shown in 4: rotary middle spindle 1 is post shapes, the convex annular step 1f of rotary middle spindle 1 middle part for protruding, in the axial both sides of convex annular step 1f is the cylindrical body 1e of running in bearings 5, rotary middle spindle 1 two end part are irregular cylinder, between the cylindrical body 1e of irregular cylinder and running in bearings 5 the annular groove 1c of assembling jump ring 2, the thread section 1d of the cylindrical body of assembling pad 3 and assembling back-up ring 4, irregular cylinder is axially arranged with two plane 1a of symmetry, irregular cylinder radially is provided with a through hole 1b, irregular cylinder and two plane 1a and through hole 1b with connect track bar and join work.

Shown in Fig. 5,6: interior jacket layer 6, middle jacket layer 7, jacket layer 8 mutual sockets are combined as a whole, the madial wall of interior jacket layer 6 is provided with convex annular step 6b, jacket layer 6 axial middle parts in the convex annular step 6b of interior jacket layer 6 is located at, the convex annular step 6b of interior jacket layer and the convex annular step 1f of rotary middle spindle 1 and bearing 5 are joined work, and described interior jacket layer 6 end madial walls are provided with annular groove 6a, and annular groove 6a and pad 3 are joined work, interior jacket layer 6, jacket layer 8 are rigid material, and middle jacket layer 7 is a nonrigid material.

Claims

1, a kind of composite bearing elastomeric bushing, comprise by interior jacket layer (6), middle jacket layer (7), the combination that jacket layer (8) constitutes, rotary middle spindle (1), it is characterized in that: the convex annular step (1f) of the middle part of rotary middle spindle (1) for protruding, on the rotary middle spindle (1) of axial two Side of convex annular step (1f), be provided with bearing (5), back-up ring (4), pad (3), jump ring (2), at convex annular step (1f), bearing (5), back-up ring (4), the outside Side in footpath of pad (3) is by interior jacket layer (6), middle jacket layer (7), the combination that jacket layer (8) constitutes, bearing (5), back-up ring (4), pad (3) is nested with on rotary middle spindle (1) and in interior jacket layer (6), middle jacket layer (7), between the combination that jacket layer (8) constitutes.

2, composite bearing elastomeric bushing according to claim 1, it is characterized in that: interior jacket layer (6), middle jacket layer (7), jacket layer (8) socket mutually is combined as a whole, and interior jacket layer (6), jacket layer (8) are rigid material, and middle jacket layer (7) is a nonrigid material.

3, composite bearing elastomeric bushing according to claim 1, it is characterized in that: rotary middle spindle (1) is post shapes, the convex annular step (1f) of rotary middle spindle (1) middle part for protruding, at axial two Side of convex annular step (1f) cylindrical body (1e) that is running in bearings (5), rotary middle spindle (1) two end part are irregular cylinder, it between the cylindrical body (1e) of irregular cylinder and running in bearings (5) annular groove (1c) of assembling jump ring (2), the thread section (1d) of the cylindrical body of assembling pad (3) and assembling back-up ring (4), irregular cylinder is axially arranged with two planes (1a) of symmetry, irregular cylinder radially is provided with a through hole (1b), irregular cylinder and two planes (1a) and through hole (1b) with connect track bar and join work.

4, composite bearing elastomeric bushing according to claim 1, it is characterized in that: the madial wall of jacket layer 6 is provided with convex annular step (6b) in described, and the convex annular step (6b) of interior jacket layer (6) is joined work with the convex annular step (1f) of rotary middle spindle (1) and bearing (5).

5, composite bearing elastomeric bushing according to claim 1 is characterized in that: jacket layer (6) end madial wall is provided with annular groove (6a) in described, and annular groove (6a) is joined work with pad (3).

6, according to the described composite bearing elastomeric bushing of claim (1), it is characterized in that: described back-up ring (4) is provided with internal thread.