CN201561056U

CN201561056U - Rubber bearing of balancing shaft of automobile rear suspension

Info

Publication number: CN201561056U
Application number: CN 200920179758
Authority: CN
Inventors: 武小卫; 马生平; 胡波; 季红丽
Original assignee: Shaanxi Automobile Group Co Ltd
Current assignee: Shaanxi Automobile Group Co Ltd
Priority date: 2009-09-30
Filing date: 2009-09-30
Publication date: 2010-08-25
Anticipated expiration: 2019-09-30

Abstract

The utility model relates to a bearing structure of a balancing shaft of an automobile rear suspension, in particular to a rubber bearing of the balancing shaft of the automobile rear suspension. The rubber bearing is formed by abutting and assembling two bushes; flanges are respectively arranged at the outer ends of the two bushes; strengthened layers are arranged at both the inner end surface and the outer end surface of each flange; and a strengthened layer is arranged on the inner surface of each bush. As the rubber bearing implemented by the technical scheme is adopted between the balancing shaft and the housing of a leaf spring seat, the motion relationship between the housing of the leaf spring seat and the balancing shaft is built, and the number of parts and components is reduced and the entire structure is simplified because of the elimination of an oil supply lubricating system and a sealing system, so that the mounting, the maintenance and the operation are more convenient, and the product cost is lower. Therefore, the rubber bearing having a reasonable structural design achieves a beneficial improvement.

Description

The rubber bush bearing of rear overhang rack trunnion shaft

Technical field

The utility model relates to the bearing structure of rear overhang rack trunnion shaft, especially about a kind of rubber bush bearing of rear overhang rack trunnion shaft.

Background technique

At present, the heavy motor truck double drive axle adopts equalizing type of suspension mostly, what most of cargo vehicle rear suspension trunnion shafves were before this adopted is by metal spherical bearing 5, structure as shown in Figure 2, because of metal spherical bearing 5 is a kind of rigid bearings, so its wear resistance is relatively poor, and run duration also needs to add lubricant oil, so the bearing of this rigid construction need be equipped with oil feeding mechanism.Adopt spherical bearing between the trunnion shaft of original structure and the spring perch, need lubricating oil filling in the using process, just need oil filler, ventilating hole, oil groove sealing and dustproof etc. on the structure.Thereby cause its sealing poor, operation and later stage work that give to install, safeguard are brought certain loaded down with trivial details difficulty, also have complex structure, component are many, processing cost is higher and noise in service is big defective simultaneously.

The model utility content

The purpose of this utility model, provide a kind of rubber bush bearing of rear overhang rack trunnion shaft, it has overcome the existing complex structure of existing rear overhang rack trunnion shaft rigid bearing, sealing is poor, noise reaches aspects such as installation and maintenance difficulty greatly deficiency, need not to lubricate, simple in structure, easy to assembly.

For achieving the above object, the technical solution adopted in the utility model is: a kind of rubber bush bearing of rear overhang rack trunnion shaft, it is characterized in that: constitute by two lining butt joint assemblings, the outer end of two linings is respectively equipped with flange, the inside and outside end face of flange is equipped with reinforced layer, and the internal surface of lining is provided with reinforced layer; Be provided with metal sandwich in the flange end, the reinforced layer of the inside and outside end face of flange is made as a metal cirque, and the reinforced layer of sleeve inner surface is made as metal tube, and metal sandwich is the metal cirque that is embedded in the flange end; Lining is made by rubber.

Press the rubber bush bearing that this programme is implemented, owing to adopt rubber bush bearing between trunnion shaft and the spring perch, not only realized the kinematic relation between spring perch and the trunnion shaft equally, and because of having cancelled lubricated, the sealing system of fuel feeding, and reduced component and simplified overall structure, make installation and maintenance more convenient to operate, cost of production is also lower.The utility model reasonable in design is a kind of useful improvement.

Description of drawings

Fig. 1 is a kind of embodiment's of the utility model a cross-sectional view;

Fig. 2 is the structural representation of existing balance shaft bearing;

Fig. 3 is the structure enlarged diagram of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.The lining 3 butt joint assemblings that the rubber bush bearing of the said rear overhang rack trunnion shaft of present embodiment is made by two rubber materials constitute, the outer end of two rubber bushings 3 is respectively equipped with the rubber flange 31 of consubstantiality, the exterior edge face of two flanges 31 is equipped with annotating and is the reinforced layer 33 of one, reinforced layer 33 be one by metal annulus, in like manner, the interior edge face of two flanges also is provided with annotating and is the reinforced layer of one---metal cirque 35, and the metal ring of inside and outside end face is in order to increase the wear resistance and the crush resistance of rubber bush bearing.For the rigidity of reinforcing flange 31 with bear the ability of extruding, also be provided with metal sandwich 32 in the flange 31, metal sandwich 32 is by metal annulus, metal sandwich 32 when making rubber bushing 3 pressure injection in flange.For the ease of installing and prevent rubber deformation, with the surface of contact of other parts, especially be provided with annotating and be the metal sandwich of one---metal tube 34 with the equipped sleeve inner surface of trunnion shaft.

The combine and assemble process of the said rubber bush bearing of the utility model is to carry out following description by illustrated left and right directions.Earlier a rubber bushing 3 on the right side is loaded on the shaft shoulder end of trunnion shaft 1, again spring perch 2 is loaded on thereupon the cylindrical of lining 3, fit up gap between trunnion shaft 1, lining 3, the spring perch 2 is zero cooperation, and then the lining 3 on the left side is packed between spring perch 2 and the trunnion shaft 1 thereupon, refill upper end cap 4 usefulness bolts with rubber bush bearing firm be fixed in trunnion shaft.

Claims

1. the rubber bush bearing of a rear overhang rack trunnion shaft is characterized in that: be made of two linings butt joint assemblings, the outer end of two linings is respectively equipped with flange, and the inside and outside end face of flange is equipped with reinforced layer, and the internal surface of lining is provided with reinforced layer.

2. the rubber bush bearing of rear overhang rack trunnion shaft according to claim 1 is characterized in that: be provided with metal sandwich in the flange.

3. the rubber bush bearing of rear overhang rack trunnion shaft according to claim 1, it is characterized in that: the reinforced layer of the inside and outside end face of flange is made as a metal cirque.

4. the rubber bush bearing of rear overhang rack trunnion shaft according to claim 1, it is characterized in that: the reinforced layer of sleeve inner surface is a metal tube.

5. as the rubber bush bearing of rear overhang rack trunnion shaft as described in the claim 2, it is characterized in that: metal sandwich is the metal cirque that is embedded in the flange.

6. the rubber bush bearing of rear overhang rack trunnion shaft according to claim 1, it is characterized in that: lining is made by rubber.