CN102745072A

CN102745072A - Novel suspension device for back stay of gear box

Info

Publication number: CN102745072A
Application number: CN2012102189112A
Authority: CN
Inventors: 刘乾; 徐驰; 陈长平
Original assignee: Ningbo Tuopu Group Co Ltd
Current assignee: Ningbo Tuopu Group Co Ltd
Priority date: 2012-06-26
Filing date: 2012-06-26
Publication date: 2012-10-24
Anticipated expiration: 2032-06-26
Also published as: CN102745072B

Abstract

The invention discloses a novel suspension device for a back stay of a gear box, which comprises a large bush and a small bush connected through a support, and the large bush comprises an external tube connected through vulcanization and a core and is characterized in that arc grooves are arranged at the front end and the rear end of the core, rubber is distributed in the groove at the rear end so as to form a convex part, the rubber is distributed along the arc of the groove at the front end so as to form a first convex part, a second convex part and a third convex part, the first convex part and the second convex part are arranged at the tips of two ends of the groove at the front end, the second convex part is arranged at the middle part of the groove at the front end, a main collision block is vulcanized at the position of the second convex part right corresponding to the internal wall of the external tube, a first collision block and a second collision block are symmetrically arranged at two sides of the main collision block, the first collision block corresponds to the position of the first convex part, and the second collision block corresponds to the position of the third convex part. The novel suspension device has the advantages that the suspension device is light, has low cost and good buffer performance, effectively lightens internal vibration and lowers the noise.

Description

A kind of novel change speed gear box back stay suspends

Technical field

The present invention relates to a kind of suspending, relate in particular to a kind of novel change speed gear box back stay and suspend.

Background technology

It is power assembly suspension system a kind of structure comparatively commonly used that the change speed gear box back stay suspends, and main effect is control dynamic assembly moving displacement and windup-degree, reduces the vibration and the noise of car body.

Existing change speed gear box back stay suspends and generally is made up of Large lining, little lining and support; The direct interference fit of Large lining and support; Iron ring of the outer sulfuration of little lining; Lean on iron ring and support interference fit, Operating Weight like this is big, cost is high, and Large lining rotates and causes the inefficacy of part easily when specifically working.Main collision block of operated by rotary motion in the Large lining in addition, when automobile quickening with moderating process in, a collision process takes place with main collision block in the rubber spring in the lining, cushion characteristic is relatively poor relatively, thereby makes in the car appearance shake and problems such as noise.

Summary of the invention

Technical matters to be solved by this invention provides the novel preferably change speed gear box back stay of a kind of cushion characteristic and suspends.

The present invention solves the problems of the technologies described above the technical scheme that is adopted:

A kind of novel change speed gear box back stay suspends; Comprise Large lining and little lining, described Large lining is connected through support with little lining, and described Large lining comprises outer tube and inner core; Described inner core is connected through the vulcanization of rubber with outer tube; The front-end and back-end of described inner core are provided with the inner groovy of circular arc, and described rubber is distributed in and forms one and the corresponding lug boss of inner groovy in the inner groovy of rear end, and described rubber forms first lug boss, second lug boss and the 3rd lug boss along the arc distribution of front end inner groovy; Described first lug boss and the 3rd lug boss are arranged on the wedge angle position at front end inner groovy two ends; Described second lug boss is arranged on the middle part of front end inner groovy, in the sulfuration on the inwall of said outer tube of second lug boss a main collision block is arranged, and is symmetrically arranged with first collision block and second collision block on the both sides of main collision block; Described first collision block is corresponding with the position of first lug boss, and described second collision block is corresponding with the position of the 3rd lug boss.

Straight-line distance between described second lug boss and the main collision block is 2-4mm.

Described support comprises Large lining installing ring and little lining installing ring; Described Large lining installing ring inwall is provided with the boss that is uniformly distributed with; Described Large lining is through described boss and Large lining installing ring interference fit, described little lining and the direct interference fit of described little lining installing ring.

Compared with prior art, the invention has the advantages that:

(1) follows collision block at a plurality of lug bosses of Large lining set inside; When automobile quickening and moderating process in; A plurality of collision processes take place in each rubber bumps portion and collision block in the lining, cushion characteristic is better relatively, thereby have solved the problems such as shake and noise in the car preferably.

(2) the direct interference fit of little lining installing ring on little lining and the support has reduced sub-part count, has alleviated the total mass that suspends, cost-cutting, and effect is better.

(3), in the assurance extrusion pressure, prevented effectively that Large lining from rotating and the part failure that causes through inner convex platform of Large lining installing ring on the support and Large lining outer tube interference assembling.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of medium-height trestle of the present invention;

Fig. 3 is the structural representation of Large lining among the present invention.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:

A kind of novel change speed gear box back stay suspends, and comprises Large lining 1 and little lining 5, and this Large lining 1 is connected through support 4 with little lining 5.Large lining 1 comprises outer tube 2 and inner core 3, and inner core 3 and outer tube 1 are connected through the vulcanization of rubber, are provided with the inner groovy of circular arc in the front-end and back-end of inner core 3; Rubber be distributed in form in the rear end inner groovy 31 one with the corresponding lug bosses 12 of inner groovy, rubber distributes along the arc of front end inner groovy 33 and forms first lug boss 7, second lug boss 6 and the 3rd lug boss 11; First lug boss 7 and the 3rd lug boss 11 are arranged on wedge angle 32 positions at front end inner groovy 33 two ends, and second lug boss 6 is arranged on the middle part of front end inner groovy 33; In the sulfuration on the inwall of outer tube 2 of second lug boss 6 a main collision block 9 is arranged; Be symmetrically arranged with first collision block 8 and second collision block 10 on the both sides of main collision block 9; First collision block 8 is corresponding with the position of first lug boss 7, and second collision block 10 is corresponding with the position of the 3rd lug boss 11.

Wherein, the straight-line distance between second lug boss 6 and the main collision block 9 is 2-4mm.

Support 4 comprises Large lining installing ring 41 and little lining installing ring 43, and Large lining installing ring 41 inwalls are provided with the boss 42 that is uniformly distributed with, and Large lining 1 passes through boss 42 and Large lining installing ring 41 interference fit, little lining 5 and little lining installing ring 43 direct interference fit.

Claims

1. a novel change speed gear box back stay suspends; Comprise Large lining and little lining, described Large lining is connected through support with little lining, and described Large lining comprises outer tube and inner core; Described inner core is connected through the vulcanization of rubber with outer tube; It is characterized in that the front-end and back-end of described inner core are provided with the inner groovy of circular arc, described rubber is distributed in and forms one and the corresponding lug boss of inner groovy in the inner groovy of rear end, and described rubber forms first lug boss, second lug boss and the 3rd lug boss along the arc distribution of front end inner groovy; Described first lug boss and the 3rd lug boss are arranged on the wedge angle position at front end inner groovy two ends; Described second lug boss is arranged on the middle part of front end inner groovy, in the sulfuration on the inwall of said outer tube of second lug boss a main collision block is arranged, and is symmetrically arranged with first collision block and second collision block on the both sides of main collision block; Described first collision block is corresponding with the position of first lug boss, and described second collision block is corresponding with the position of the 3rd lug boss.

2. a kind of novel change speed gear box back stay as claimed in claim 1 suspends, and it is characterized in that the straight-line distance between described second lug boss and the main collision block is 2-4mm.

3. a kind of novel change speed gear box back stay as claimed in claim 1 suspends; It is characterized in that described support comprises Large lining installing ring and little lining installing ring; Described Large lining installing ring inwall is provided with the boss that is uniformly distributed with; Described Large lining is through described boss and Large lining installing ring interference fit, described little lining and the direct interference fit of described little lining installing ring.