CN211893431U

CN211893431U - Stabilizer bar with rocker arm assembly for front suspension of cab

Info

Publication number: CN211893431U
Application number: CN202020109333.9U
Authority: CN
Inventors: 韩瑞远; 田立胜; 阮余发
Original assignee: Dongfeng Shiyan Cab Parts Co ltd
Current assignee: Dongshi Body Parts Hubei Co ltd
Priority date: 2020-01-18
Filing date: 2020-01-18
Publication date: 2020-11-10
Anticipated expiration: 2030-01-18

Abstract

The utility model discloses a stabilizer bar with rocker arm assembly used in front suspension of a cab, which comprises a stabilizer bar and two sets of rocker arms, wherein the two sets of rocker arms are respectively fixed on two ends of the stabilizer bar; the two ends of the stabilizer bar are respectively provided with a first buffering and vibration absorbing component which plays roles of buffering and vibration absorbing between the stabilizer bar and the overturning support; the other ends of the two sets of rocker arms are internally provided with second buffer vibration absorption components which play roles in buffering and absorbing vibration between the rocker arms and the suspension upper bracket; the two hinged parts are respectively provided with a buffering and vibration absorbing assembly which has a protection effect on a connected structural part, particularly has a good protection effect on the transverse stabilizer bar, prolongs the service life of the stabilizer bar and improves the riding comfort of drivers and passengers; the two hinged parts adopt self-lubricating composite bushings, and are additionally provided with vibration absorbing elements and buffer pads, so that hard connection between parts is avoided.

Description

Stabilizer bar with rocker arm assembly for front suspension of cab

Technical Field

The utility model belongs to suspension field before the driver's cabin, especially a stabilizer bar area rocking arm assembly for among suspension before the driver's cabin.

Background

Along with the improvement of living standard of people, people have higher and higher requirements on comfort, safety and reliability of commercial vehicles.

As shown in fig. 1, the front suspension structure of the cab mainly comprises a stabilizer bar with a rocker arm assembly, a left overturning support, a right overturning support hinge, a left suspension upper support, a right suspension upper support, a left air bag shock absorber and a right air bag shock absorber; the stabilizer bar with rocker arm assembly is composed of a stabilizer bar 1 and two sets of rocker arms 2 fixed on two ends of the stabilizer bar, two ends of the stabilizer bar are respectively hinged with a left turning support 3 and a right turning support 4, the other ends of the two sets of rocker arms are respectively hinged with a left suspension upper support 6 and a right suspension upper support 7 through a turning shaft 5, a left air bag shock absorber 8 is hinged between the left turning support and the left suspension upper support, and a right air bag shock absorber 9 is hinged between the right turning support and the right suspension upper support. The connection of the stabilizer bar and the overturning support, the connection of the rocker arm and the suspension upper bracket are mostly hinged by adopting structures such as a rolling bearing, a composite bushing and the like; the rolling bearing connection structure is adopted, so that the bearing is easy to wear, block and the like, and the defects that the cab is difficult to turn over, the stabilizer bar is easy to twist off and the like are overcome; the structure of the composite bushing is directly adopted, and the defects of abrasion, abnormal sound, poor comfort performance, twisting off of the stabilizer bar and the like of the composite bushing are easy to appear in the after-sale market.

Disclosure of Invention

To the technical problem, the utility model provides a stabilizer bar takes rocking arm assembly structure for in suspension before the driver's cabin, solve stabilizer bar and suspension upper bracket, rocking arm become with the connection problem of upset support.

In order to solve the technical problem, the technical scheme of the utility model is that: a stabilizer bar with rocker arm assembly for front suspension of a cab comprises a stabilizer bar and two sets of rocker arms, wherein the two sets of rocker arms are respectively fixed on two ends of the stabilizer bar; the method is characterized in that: the two ends of the stabilizer bar are respectively provided with a first buffering and vibration absorbing component which plays roles of buffering and vibration absorbing between the stabilizer bar and the overturning support; and a second buffering vibration absorption component is arranged in the other end of each of the two rocker arms, and plays a role in buffering and absorbing vibration between the rocker arms and the suspension upper bracket.

The technical scheme is further limited, the first buffering vibration absorption assembly consists of a first vibration absorption element, a first self-lubricating composite bushing, a first left buffer cushion and a first right buffer cushion, the first vibration absorption element is pressed in a hole on the overturning support, the first self-lubricating composite bushing is pressed in the hole of the first vibration absorption element, and the first buffer cushion and the first right buffer cushion are respectively assembled on two sides of the first vibration absorption element; the end part of the stabilizer bar is in clearance fit with the first self-lubricating composite bushing.

The above technical solution is further defined, the second buffering vibration-absorbing assembly is composed of a second vibration-absorbing element, a second self-lubricating composite bushing, a second left cushion pad and a second right cushion pad, the second vibration-absorbing element is press-fitted into a hole on the other end of the rocker arm, the second self-lubricating composite bushing is press-fitted into the second vibration-absorbing element, and the second left cushion pad and the second right cushion pad are fitted to both sides of the second vibration-absorbing element; the suspension upper bracket is hinged with the second self-lubricating composite bushing through the turnover shaft.

In a further aspect of the above technical solution, the first vibration absorbing element and the second vibration absorbing element are made of rubber.

Has the advantages that: 1) the hinged parts of the stabilizer bar and the overturning support, and the hinged parts of the rocker arm and the suspension upper bracket are respectively provided with a buffering and vibration absorbing component which has buffering and vibration absorbing functions, and the buffering and vibration absorbing component has a protection effect on a connected structural part, particularly a good protection effect on the transverse stabilizer bar, so that the service life of the stabilizer bar is prolonged, and the riding comfort of drivers and passengers is improved; 2) the hinge joint of the stabilizer bar and the overturning support adopts the self-lubricating composite bushing, and the vibration absorbing element and the buffer pad are additionally arranged, so that the hard connection of the stabilizer bar and the self-lubricating composite bushing is avoided, the abrasion of the hinge joint of the end part of the stabilizer bar is greatly reduced, and the phenomenon of 'blocking' is avoided; 3) the hinged part of the turnover shaft and the rocker arm is provided with a self-lubricating composite bushing, and in addition, a vibration absorbing element and a buffer pad are additionally arranged, so that the hard connection between the turnover shaft and the self-lubricating composite bushing is avoided, the problems of abrasion, abnormal sound and the like of the turnover shaft are solved, and the service life of the turnover shaft is prolonged.

Drawings

Fig. 1 is a schematic diagram of a structure in the background art.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic view of the hinge joint of the stabilizer bar and the roll-over support of the present invention.

Fig. 4 is a schematic diagram of the hinge connection between the rocker arm and the suspension upper bracket according to the present invention.

Fig. 5 is a usage state diagram of the present invention.

Detailed Description

As shown in fig. 2, a stabilizer bar with rocker arm assembly for use in front suspension of a cab comprises a stabilizer bar 1 and two sets of rocker arms 2, wherein the two sets of rocker arms are respectively fixed on two ends of the stabilizer bar; the two ends of the stabilizer bar 1 are respectively provided with a first buffering and vibration absorbing component 10 which plays roles of buffering and vibration absorbing between the stabilizer bar and the overturning support; the other ends of the two sets of rocker arms are internally provided with a second buffering and vibration absorbing component 11 which plays roles of buffering and vibration absorbing between the rocker arms and the suspension upper bracket;

as shown in fig. 3 and 5, both ends of the stabilizer bar are the same as the hinge structure of the left and right tilting brackets, and thus, the hinge structure of the stabilizer bar and the left tilting bracket will be described in detail; the first buffering vibration absorption assembly 10 consists of a first vibration absorption element 101, a first self-lubricating composite bushing 102, a first left buffer pad 103 and a first right buffer pad 104, wherein the first vibration absorption element is made of rubber materials, the first vibration absorption element is pressed into a hole on the left overturning support, the first self-lubricating composite bushing is pressed into the hole of the first vibration absorption element, and the first left buffer pad and the first right buffer pad are respectively assembled on two sides of the first vibration absorption element; the left end of the stabilizer bar is limited in a first self-lubricating composite bushing through a bolt 105 and a washer 106; namely, the bolt is in clearance fit with the first self-lubricating composite bushing, the first gasket plays a role in axial limiting, and the bolt plays a role in fastening; in the running process of the whole vehicle, the first vibration absorption element performs buffering and vibration absorption, so that the service life of the stabilizer bar and the riding comfort of drivers and passengers are improved;

as shown in fig. 4 and 5, the swing arm is identical to the hinge structure of the left and right suspension upper brackets, and thus, the hinge structure of the swing arm and the right suspension upper bracket is explained in detail; the second shock-absorbing assembly 11 is composed of a second shock-absorbing element 111 made of a rubber material, a second self-lubricating composite bushing 112 press-fitted into a hole at the other end of the rocker arm, a second left cushion 113 and a second right cushion 114 press-fitted into the second shock-absorbing element, the second left cushion and the second right cushion being fitted to both sides of the second shock-absorbing element; the right suspension upper bracket 7 is hinged with a second self-lubricating composite bushing through a turnover shaft 5; namely, the overturning shaft is in clearance fit with the second self-lubricating composite bushing, and two ends of the overturning shaft are fixedly connected with the suspension upper bracket through nuts; in the running process of the whole vehicle, the second vibration absorption element performs buffering and vibration absorption, so that the service life of the turnover shaft and the riding comfort of drivers and passengers are improved;

the self-lubricating composite bushing is made of P21O, and has an elastic modulus of 2200MPa, a compressive strength of 50MPa and a coefficient of friction to steel movement of 0.2-0.3. The abrasion loss can not be larger than 0.25mm after the normal temperature radial loading of 5KN, the frequency of 2Hz, the swing angle of 1.5 degrees and 2000 ten thousand times.

Those skilled in the art will appreciate that the details of the present invention are not described in detail herein.

Claims

1. A stabilizer bar with rocker arm assembly for front suspension of a cab comprises a stabilizer bar and two sets of rocker arms, wherein the two sets of rocker arms are respectively fixed on two ends of the stabilizer bar; the method is characterized in that: the two ends of the stabilizer bar are respectively provided with a first buffering and vibration absorbing component which plays roles of buffering and vibration absorbing between the stabilizer bar and the overturning support; and a second buffering vibration absorption component is arranged in the other end of each of the two rocker arms, and plays a role in buffering and absorbing vibration between the rocker arms and the suspension upper bracket.

2. The stabilizer strap rocker assembly for use in front cab suspension of claim 1, wherein: the first buffering vibration absorption assembly consists of a first vibration absorption element, a first self-lubricating composite bushing, a first buffering cushion and a first gasket, the first vibration absorption element is pressed into a hole in the overturning support, the first self-lubricating composite bushing is pressed into the hole in the first vibration absorption element, and the first buffering cushion and the first gasket are respectively assembled on two sides of the first vibration absorption element; the end part of the stabilizer bar is limited in the first self-lubricating composite bushing through a bolt and a first washer.

3. A stabilizer bar with rocker arm assembly for use in cab front suspension according to claim 1 or 2, wherein: the second buffering vibration absorption assembly consists of a second vibration absorption element, a second self-lubricating composite bushing, a second left cushion pad and a second right cushion pad, the second vibration absorption element is pressed into a hole in the other end of the rocker arm, the second self-lubricating composite bushing is pressed into the second vibration absorption element, and the second left cushion pad and the second right cushion pad are assembled on two sides of the second vibration absorption element; the suspension upper bracket is hinged with the second self-lubricating composite bushing through the turnover shaft.

4. The stabilizer strap rocker assembly for use in front cab suspension of claim 2, wherein: the first vibration absorbing element and the second vibration absorbing element are made of rubber materials.