CN202243645U

CN202243645U - Double front axle steering mechanism of automobile crane

Info

Publication number: CN202243645U
Application number: CN2011203506093U
Authority: CN
Inventors: 张玉杰; 贾宏飞; 鲍时超; 汪阳
Original assignee: Anhui Liugong Crane Co Ltd
Current assignee: Anhui Liugong Crane Co Ltd
Priority date: 2011-09-19
Filing date: 2011-09-19
Publication date: 2012-05-30
Anticipated expiration: 2021-09-19

Abstract

The double-front-axle steering mechanism of the automobile crane comprises a support welded on a frame, a steering wheel, a steering column, a steering gear, a vertical arm, a first longitudinal pull rod, a front swing arm, a second longitudinal pull rod, a first axle steering knuckle arm, a third longitudinal pull rod, a rear swing arm, a fourth longitudinal pull rod, a second axle steering knuckle arm and a rear steering power cylinder, wherein the steering gear is horizontally arranged; the angle steering gear is arranged on the support and is positioned right below the steering column, and the lower end of the steering column is connected with the angle steering gear through a first universal joint; the front end of the angle steering transmission shaft is connected with the angle steering gear through a second universal joint, and the rear end of the angle steering transmission shaft is connected with the steering gear through a third universal joint. This steering mechanism has obviously improved the security of driving and the travelling comfort of manipulation: the connections between the steering column and the angle steering gear and between the angle steering gear and the steering gear adopt universal joint structures, which make up for manufacturing and mounting errors and adapt to distance changes caused by vehicle body deformation; the impact of the road surface on the steering mechanism can be buffered by adopting the structural forms of the single-steering power cylinder, the angle steering gear, the angle steering transmission shaft and the horizontally-mounted steering gear.

Description

The two Front Axle Steering Mechanism of car hosit

Technical field

The utility model relates to the two Front Axle Steering Mechanism of a kind of car hosit.

Background technology

At present; There is following defective in the two Front Axle Steering Mechanism of existing car hosit: complex structure, and error is big, turns to inharmonious; Cause wear on tyres serious; The feel of bearing circle was heavy when the user operated, and long-duration driving causes muscular fatigue easily, thereby reduced the safety of driving and the traveling comfort of manipulation greatly.

The utility model content

The utility model technical matters to be solved provides the two Front Axle Steering Mechanism of a kind of car hosit, improves the safety of driving and the traveling comfort of manipulation.

For solving the problems of the technologies described above; The utility model provides a kind of car hosit two Front Axle Steering Mechanism; It comprises bearing circle, steering column, direction machine, plumbing arm, first longitudinal tie, front swing arm, second longitudinal tie, the first bridge track arm, the 3rd longitudinal tie, rear-swing arm, the 4th longitudinal tie, the second bridge track arm, the back steering actuation cylinder that is welded on frame lug and is positioned at the bearing homonymy; The steering column upper end is connected through spline with bearing circle; The direction machine is arranged on the bearing; Plumbing arm upper end through spline be connected with the direction machine, the front end of lower end and first longitudinal tie is hinged; The upper end of front swing arm, the upper end of rear-swing arm and bearing are hinged, and the front side, lower end of the rear end of first longitudinal tie and front swing arm is hinged, and the rear and front end of second longitudinal tie is hinged with the lower end rear side and the first bridge track arm of front swing arm respectively; The rear and front end of the 3rd longitudinal tie is hinged with the front side, middle part of the middle part rear side of front swing arm and rear-swing arm respectively; The rear and front end of the 4th longitudinal tie is hinged with the lower end rear side and the second bridge track arm of rear-swing arm respectively, and the rear and front end of back steering actuation cylinder is hinged with the middle part rear side and the bearing of rear-swing arm respectively, and the direction machine is the horizontal layout of level; The angle deflector be arranged on the bearing and be positioned at steering column under, the steering column lower end is connected with the angle deflector through first universal-joint; The front end of angle steering inner articulated shaft through second universal-joint join with the angle deflector, the rear end is connected with the direction machine through the 3rd universal-joint.

For can concise description for the purpose of the problem, below the two Front Axle Steering Mechanism of the said car hosit of the utility model be all abbreviated as this steering hardware.

This steering hardware has obviously improved the safety of driving and the traveling comfort of manipulation: gimbal structure is all adopted in being connected between steering column and the angle deflector, between angle deflector and the direction machine; Manufacturing and installation error have been remedied, to adapt to the variable in distance that causes because of body distortion; The setting of three universal-joints can reduce to the fluctuation range of the variable speed transmission of universal-joint minimum; Adopt the version of single steering actuation cylinder, angle deflector, angle steering inner articulated shaft and the horizontally-mounted direction machine of level, the available buffer road surface is to the impact of steering hardware.

Use later-model optimization as this, the upper end of said front swing arm, the upper end of rear-swing arm are respectively hinged through tapered roller bearing and bearing.

Tapered roller bearing can carry the power of axis direction, makes intensity of this steering hardware and reliability improve.

The cylinder diameter of said direction machine is 120mm, and the length of plumbing arm is 300mm; The length of first longitudinal tie is 556mm, and the length of second longitudinal tie is 580mm, and the length of the 3rd longitudinal tie is 1450mm, and the length of the 4th longitudinal tie is 630mm.

After the length of the length of the cylinder diameter of direction machine, plumbing arm and four longitudinal ties set; When each wheel flutter is turned to all around the turning center rotation of same moment; Satisfy Ackermam theoretical steering characteristic; Each wheel flutter is in pure rolling as far as possible in steering procedure does not have the sideslip state, alleviates wear on tyres greatly, has increased safety, has reduced cost.

Description of drawings

Fig. 1 is the structural representation of this steering hardware.

Fig. 2 is the A-A cutaway view Amplified image of Fig. 1.

The specific embodiment

Further specify the utility model below in conjunction with accompanying drawing and through embodiment.

Embodiment:

Referring to Fig. 1, Fig. 2: the two Front Axle Steering Mechanism of car hosit; Bearing circle 3, steering column 4, direction machine 5, plumbing arm 6, first longitudinal tie 7, front swing arm 8, second longitudinal tie 9, the first bridge track arm 10, the 3rd longitudinal tie 11, rear-swing arm 12, the 4th longitudinal tie 13, the second bridge track arm 14, the back steering actuation cylinder 15 that comprise the bearing 2 that is welded on the vehicle frame 1 and be positioned at bearing 2 homonymies; Steering column 4 upper ends and bearing circle 3 are connected through spline; Direction machine 5 is arranged on the bearing 2; Plumbing arm 6 upper ends through spline be connected with direction machine 5, the front end of lower end and first longitudinal tie 7 is hinged; The upper end of the upper end of front swing arm 8, rear-swing arm 12 and bearing 2 are hinged; The front side, lower end of the rear end of first longitudinal tie 7 and front swing arm 8 is hinged; The rear and front end of second longitudinal tie 9 is hinged with the lower end rear side and the first bridge track arm 10 of front swing arm 8 respectively, and the rear and front end of the 3rd longitudinal tie 11 is hinged with the front side, middle part of the middle part rear side of front swing arm 8 and rear-swing arm 12 respectively, and the rear and front end of the 4th longitudinal tie 13 is hinged with the lower end rear side and the second bridge track arm 14 of rear-swing arm 12 respectively; The rear and front end of back steering actuation cylinder 15 is hinged with the middle part rear side and the bearing 2 of rear-swing arm 12 respectively; Direction machine 5 is the horizontal layout of level, angle deflector 17 be arranged on the bearing 2 and be positioned at steering column 4 under, steering column 4 lower ends are connected with angle deflector 17 through first universal-joint 19; The front end of angle steering inner articulated shaft 18 through second universal-joint 20 join with angle deflector 17, the rear end is connected with direction machine 5 through the 3rd universal-joint 21.

The upper end of the upper end of front swing arm 8, rear-swing arm 12 is respectively hinged through tapered roller bearing 22 and bearing 2.

The cylinder diameter of direction machine 5 is 120mm, and the length of plumbing arm 6 is 300mm; The length of first longitudinal tie 7 is 556mm, and the length of second longitudinal tie 9 is 580mm, and the length of the 3rd longitudinal tie 11 is 1450mm, and the length of the 4th longitudinal tie 13 is 630mm.

Above-described only is a specific embodiment of the utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be regarded as belonging to the protection domain of the utility model.

Claims

1. two Front Axle Steering Mechanism of car hosit; Comprise the bearing circle, steering column, direction machine, plumbing arm, first longitudinal tie, front swing arm, second longitudinal tie, the first bridge track arm, the 3rd longitudinal tie, rear-swing arm, the 4th longitudinal tie, the second bridge track arm, the back steering actuation cylinder that are welded on frame lug and are positioned at the bearing homonymy; The steering column upper end is connected through spline with bearing circle; The direction machine is arranged on the bearing; Plumbing arm upper end through spline be connected with the direction machine, the front end of lower end and first longitudinal tie is hinged; The upper end of front swing arm, the upper end of rear-swing arm and bearing are hinged, and the front side, lower end of the rear end of first longitudinal tie and front swing arm is hinged, and the rear and front end of second longitudinal tie is hinged with the lower end rear side and the first bridge track arm of front swing arm respectively; The rear and front end of the 3rd longitudinal tie is hinged with the front side, middle part of the middle part rear side of front swing arm and rear-swing arm respectively; The rear and front end of the 4th longitudinal tie is hinged with the lower end rear side and the second bridge track arm of rear-swing arm respectively, and the rear and front end of back steering actuation cylinder is hinged with the middle part rear side and the bearing of rear-swing arm respectively, it is characterized in that: the direction machine is the horizontal layout of level; The angle deflector be arranged on the bearing and be positioned at steering column under, the steering column lower end is connected with the angle deflector through first universal-joint; The front end of angle steering inner articulated shaft through second universal-joint join with the angle deflector, the rear end is connected with the direction machine through the 3rd universal-joint.

2. the two Front Axle Steering Mechanism of car hosit according to claim 1 is characterized in that: the upper end of front swing arm, the upper end of rear-swing arm are respectively hinged through tapered roller bearing and bearing.

3. the two Front Axle Steering Mechanism of car hosit according to claim 1, it is characterized in that: the cylinder diameter of direction machine is 120mm, the length of plumbing arm is 300mm; The length of first longitudinal tie is 556mm, and the length of second longitudinal tie is 580mm, and the length of the 3rd longitudinal tie is 1450mm, and the length of the 4th longitudinal tie is 630mm.