CN209888961U

CN209888961U - Cab front suspension stabilizer bar assembly

Info

Publication number: CN209888961U
Application number: CN201822274341.4U
Authority: CN
Inventors: 陈振; 文世红; 陈东萍; 董昕昕
Original assignee: Dongfeng Special Parts Co Ltd
Current assignee: Dongfeng Special Parts Co Ltd
Priority date: 2018-12-31
Filing date: 2018-12-31
Publication date: 2020-01-03
Anticipated expiration: 2028-12-31

Abstract

The utility model provides a cab front suspension stabilizer bar assembly, which comprises a fixed shaft, a stabilizer bar and a positioning pin, wherein the fixed shaft is of a stepped shaft structure, a shock absorber is arranged at the end part of the fixed shaft, an upper bracket of a vehicle body front suspension is arranged at the stepped shaft, and three bolt holes at the middle side and a turnover arm are fixed through bolts; two ends of the stabilizer bar are fixedly connected with the fixed shaft; the locating pin is installed on the fixed shaft through interference fit. The utility model adopts a hollow reducing thick structure, light weight and good reliability; a front suspension of a cab is additionally provided with a positioning pin for limiting, so that transverse movement and abnormal sound are eliminated; the shock absorber center, the overturning center and the stabilizer bar center are of a three-in-one structure, so that the stress is simple; the cab front suspension is compact in structure and simple in assembly and adjustment operation.

Description

Cab front suspension stabilizer bar assembly

Technical Field

The utility model relates to an automobile parts, especially a driver's cabin front suspension stabilizer bar assembly.

Background

The existing cab front suspension stabilizer bar assembly adopts two structural forms, namely a solid structure, which has better reliability, heavier weight and higher cost; one is a hollow structure, light in weight, but poor in reliability, easy to crack and low in fatigue life. In order to solve the problem, a dun thick process is generally adopted to enhance the strength, but the equal-diameter dun thick process is generally adopted at present, so that the reliability improvement is limited. In addition, the overturning center and the shock absorber fulcrum of the front suspension of the existing cab are not concentric with the center of the stabilizer bar at the same time, hard points are arranged highly, the system is complex, the cab is easily subjected to roll moment and longitudinal moment due to unreasonable arrangement, the roll stability and the longitudinal stability are poor, the stabilizer bar is easy to shift transversely, abnormal sound is easy to generate, and the comfort is poor.

Disclosure of Invention

The utility model aims at providing a suspension stabilizer bar assembly before driver's cabin, the thick scheme of hollow reducing of special adoption is dun, alleviates stabilizer bar weight, improves fatigue life, increases transversely spacing, reduces the abnormal sound, promotes driver's cabin side stability of inclining and longitudinal stability to promote the vehicle travelling comfort.

In order to solve the technical problem, the technical scheme of the utility model as follows: the utility model provides a driver's cabin front suspension stabilizer bar assembly which characterized in that: the automobile body front suspension frame comprises a fixed shaft, a stabilizer bar and a positioning pin, wherein the fixed shaft is of a stepped shaft structure, a shock absorber is arranged at the end part of the fixed shaft, an upper bracket of an automobile body front suspension frame is arranged at the stepped shaft, and three bolt holes at the middle side are fixed with a turnover arm through bolts; two ends of the stabilizer bar are fixedly connected with the fixed shaft; the locating pin is installed on the fixed shaft through interference fit.

The improvement of the technical scheme is as follows: the stabilizer bar is hollow, and body of rod middle part constant diameter, both ends are thick dun, and the internal and external surface of the body of rod is reducing simultaneously and is sent out thickly, and reducing department circular arc passes through.

The technical scheme is further improved as follows: the positioning pin is of a stepped shaft structure, and a shaft on one side of the positioning pin is inserted into a pin hole of the fixing shaft and is in clearance fit with the pin hole; the shaft in the middle of the positioning pin is inserted into the pin hole of the fixed shaft and is in interference fit with the pin hole of the fixed shaft; the shaft on the other side of the positioning pin plays a role in guiding and positioning, is inserted into the front suspension turning arm and can play a role in secondary transverse limiting.

Has the advantages that:

the utility model has the characteristics that:

1) the stabilizer bar adopts a hollow reducing dun-thick structure, so that the weight is light and the reliability is good;

2) a front suspension of a cab is additionally provided with a positioning pin for limiting, so that transverse movement and abnormal sound are eliminated;

3) the shock absorber center, the overturning center and the stabilizer bar center are of a three-in-one structure, so that the stress is simple;

4) the cab front suspension is compact in structure and simple in assembly and adjustment operation.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a bottom view of the present invention.

Fig. 3 is a schematic view of a stationary shaft structure.

Fig. 4 is a schematic view of a stabilizer bar structure.

Detailed Description

The utility model discloses the structure includes fixed axle 1, stabilizer bar 2, locating pin 3 as shown in fig. 1-4, the shock absorber is installed to fixed axle 1 tip, and step shaft department installation automobile body front suspension upper bracket, the three bolt hole of well side are fixed through the bolt with the upset arm. And two ends of the stabilizer bar 2 are welded with the fixed shaft 1 by adopting carbon dioxide arc welding. The positioning pin 3 is arranged on the fixed shaft 1 in an interference fit mode.

Further preferred structure, fixed axle 1 adopts the step shaft structure, and the thin axle terminal surface in left side increases the screw hole for fixed shock absorber can play once horizontal limiting displacement. The end parts of the two sides of the long shaft close to the thin shaft are chamfered, so that the front suspension can be conveniently installed and guided on the upper bracket. The thick shaft on the right side is provided with a chamfer type opening, the convex boss is inserted into the stabilizer bar 2, and circular seam welding is adopted. The front and back surfaces of the middle part are planes, the overturning arms are connected and fixed through bolts, and the mounting holes of the positioning pins 3 are arranged on the back surface. The lower end arc surface can play a role in lower limit by contacting with the limit block in the up-and-down motion process of the front suspension.

Further preferred structure, stabilizer bar 2 adopts hollow rod scheme, and the middle part constant diameter, both ends are thick, and the internal and external surface reducing is sent out thickly simultaneously, and reducing department circular arc transition does not have thick stress of mound, and the internal circumference further processing, and the fixed axle 1 of being convenient for inserts clearance fit. The end part is provided with a chamfer type opening and is welded by a circular welding seam.

In a further preferable structure, the positioning pin 3 is in a stepped shaft structure, and a thin shaft on the left side is inserted into a pin hole of the fixing shaft 1 and is in clearance fit with the pin hole. The middle thick shaft is inserted into the pin hole of the fixed shaft 1 and is in interference fit, the right thin shaft plays a role in guiding and positioning, and the middle thick shaft is inserted into the front suspension overturning arm and can play a role in secondary transverse limiting.

The utility model discloses a 2

fixed axles

1, 1

stabilizer bar

2, 2 locating pins 3, the stabilizer bar assembly is whole to be from symmetrical structure, and simultaneously, both ends have the protective cap, play the guard action, and the appearance is pleasing to the eye.

In use, two positioning pins 3 in fig. 1-2 are inserted into the cab front suspension tilting arm to perform transverse limiting. The front surface in fig. 4 is towards the plantago direction, and 3 bolt holes are vertical a line, and stabilizer bar assembly both ends adopt 3 bolts and upset arm to be connected respectively. The lower cambered surface in fig. 4 contacts with a limiting block fixed on the frame to play a limiting role in the downward movement process of the cab. The circumferential surface of the long shaft in fig. 4 is provided with an upper bracket of a front suspension of the cab for supporting.

When the cab is overturned, the center of the stabilizer bar is used as an overturning center to rotate around the shaft. The left thin shaft in the figure 4 is provided with a shock absorber which plays a role of transverse limiting, the damping force of the shock absorber directly acts on the overturning center of the cab, and the end part of the shock absorber is tightened by adopting a bolt.

The end parts of the stabilizer bar 2 and the fixed shaft 1 are chamfered and notched, and 2 circular seam welding is adopted. The stabilizer bar 2 and the two fixing shafts 1 form three points and one line, the number of welding lines is small, the manufacturing process flow is simplified, the whole structure is optimized, and the system structure and the stress are simple.

Claims

1. The utility model provides a driver's cabin front suspension stabilizer bar assembly which characterized in that: the automobile body front suspension frame comprises a fixed shaft, a stabilizer bar and a positioning pin, wherein the fixed shaft is of a stepped shaft structure, a shock absorber is arranged at the end part of the fixed shaft, an upper bracket of an automobile body front suspension frame is arranged at the stepped shaft, and three bolt holes at the middle side are fixed with a turnover arm through bolts; two ends of the stabilizer bar are fixedly connected with the fixed shaft; the locating pin is installed on the fixed shaft through interference fit.

2. A cab front suspension stabilizer bar assembly in accordance with claim 1, wherein: the stabilizer bar is hollow, and body of rod middle part constant diameter, both ends are thick dun, and the internal and external surface of the body of rod is reducing simultaneously and is sent out thickly, and reducing department circular arc passes through.

3. A cab front suspension stabilizer bar assembly in accordance with claim 1, wherein: the positioning pin is of a stepped shaft structure, and a shaft on one side of the positioning pin is inserted into a pin hole of the fixing shaft and is in clearance fit with the pin hole; the shaft in the middle of the positioning pin is inserted into the pin hole of the fixed shaft and is in interference fit with the pin hole of the fixed shaft; the shaft on the other side of the positioning pin plays a role in guiding and positioning, is inserted into the front suspension turning arm and can play a role in secondary transverse limiting.