CN211995852U

CN211995852U - Power-assisted steering device for lengthened lorry

Info

Publication number: CN211995852U
Application number: CN202020497116.1U
Authority: CN
Inventors: 周林
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-11-24
Anticipated expiration: 2030-04-08

Abstract

The utility model relates to a turn to the device, concretely relates to power assisted steering device for extension lorry. The steering device consists of a radial lifter, a swinging wheel and a traveling motor, wherein the lower end of the radial lifter is provided with the swinging wheel through the traveling motor; the upper end of the radial lifter is provided with a fixed plate through a hinge, and the end head of the radial lifter is provided with a swing hydraulic cylinder. The steering device is simple in structure, and the steering wheel can be retracted by matching the radial lifter with the swing hydraulic cylinder, so that the steering wheel does not influence the normal running of a vehicle; the steering wheel is matched with the walking motor, so that the steering angle of the automobile can be adjusted, the automobile does not need to be steered repeatedly through a small angle, the operation and the control are simple, the problem of difficulty in steering the lengthened automobile in special occasions is solved, and the steering wheel is particularly suitable for being used when the automobile is steered.

Description

Power-assisted steering device for lengthened lorry

Technical Field

The utility model relates to a turn to the device, concretely relates to power assisted steering device for extension lorry.

Background

For automobiles, particularly semitrailers and lengthened trucks or buses, the angle of a curve is small, turning or backing is often difficult, steering can be carried out to a proper angle only by repeatedly steering at a small angle for many times, and the operation and control are particularly difficult for novice drivers or drivers with low driving level, so that safety accidents can happen slightly carelessly; meanwhile, in special occasions such as a goods yard, a parking lot and the like, because vehicles are more, the field is small, and steering is more difficult, a device capable of assisting steering needs to be developed.

Disclosure of Invention

The utility model aims at: aiming at the defects of the prior art, the power auxiliary steering device for the lengthened lorry is simple to control, can be suitable for auxiliary steering in different occasions and solves the problem of difficult steering in special occasions of the lengthened lorry.

The technical scheme of the utility model is that:

the utility model provides a power assisted steering device for extension lorry, it comprises radial riser, fixed plate, swing hydraulic cylinder, pendulum to wheel and walking motor, its characterized in that: the upper end of the radial lifter is provided with a fixed plate through a hinge, the end of the fixed plate at one side of the radial lifter is provided with a swing hydraulic cylinder, the end of the top of the swing hydraulic cylinder is hinged with the fixed plate, and the end of a piston rod of the swing hydraulic cylinder is connected with the radial lifter; the lower end of the radial lifter is provided with a walking motor through a supporting plate, and the walking motor is provided with a swinging wheel.

The radial lifter consists of an assembly plate, a lifting hydraulic cylinder and an installation plate, wherein the lifting hydraulic cylinder is arranged on the lower surface of the assembly plate, and the installation plate is arranged at the end of a piston rod of the lifting hydraulic cylinder; the assembly plates on the two sides of the lifting hydraulic cylinder are symmetrically provided with support rods, the ends of the support rods are movably sleeved with telescopic rods, and the ends of the telescopic rods are fixedly connected with the mounting plate.

The lower end of the support rod is hinged with the swing hydraulic cylinder.

The assembly plate is hinged with the fixed plate through a hinge.

The supporting plate is fixedly connected with the lower surface of the mounting plate.

Furthermore, the radial lifter consists of an assembly plate, supporting hydraulic cylinders and a mounting plate, the supporting hydraulic cylinders are symmetrically arranged on the lower surface of the assembly plate, and the mounting plate is arranged at the end head of a piston rod of each supporting hydraulic cylinder; the cylinder barrel of the supporting hydraulic cylinder is provided with a reinforcing plate through a guide sleeve, and the reinforcing plate is movably connected with the fixed plate through a swing hydraulic cylinder.

The beneficial effects of the utility model reside in that:

the power-assisted steering device for the lengthened lorry has a simple structure, and the steering wheel can be horizontally retracted by matching the radial lifter with the swing hydraulic cylinder, so that the steering wheel does not influence the normal running of the lorry; the steering wheel is matched with the walking motor, so that the automobile can be steered by an angle adjusting mode without repeatedly steering at a small angle, the operation and the control are simple, the problem of difficulty in steering in special occasions of lengthened automobiles is solved, and the steering wheel is particularly suitable for being used when lengthened trucks are steered.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic right-side view of FIG. 1;

fig. 3 is a schematic view of the utility model in a furled state;

fig. 4 is a schematic view of the working state of the present invention;

fig. 5 is a schematic structural diagram of a modified form of the present invention;

fig. 6 is a schematic right view of fig. 5.

In the figure: 1. the device comprises a fixing plate, 2, a swing hydraulic cylinder, 3, a walking motor, 4, a swing wheel, 5, a hinge, 6, a supporting plate, 7, an assembling plate, 8, a lifting hydraulic cylinder, 9, an installing plate, 10, a supporting rod, 11, a telescopic rod, 12, a supporting hydraulic cylinder, 13, a reinforcing plate, 14 and a guide sleeve.

Detailed Description

This power assisted steering device for extension lorry is by radial riser, fixed plate 1, swing hydraulic cylinder 2, walking motor 3 and pendulum are to wheel 4 constitution, fixed plate 1 is equipped with through hinge 5 in radial riser upper end, during the installation, through welding or fixing bolt, fix fixed plate 1 at automobile body afterbody bottom plate (girder) lower surface, hoist and mount radial riser on automobile body bottom plate through fixed plate 1, simultaneously through the area of contact of fixed plate 1 increase with automobile body afterbody bottom plate, prevent radial riser during operation, can not lead to automobile body afterbody bottom plate damaged because of the too big pressure of jacking force to automobile body afterbody bottom plate. The radial lifter comprises an assembly plate 7, a lifting hydraulic cylinder 8 and an installation plate 9, wherein the lifting hydraulic cylinder 8 is arranged on the lower surface of the assembly plate 7, the installation plate 9 is arranged at the end of a piston rod of the lifting hydraulic cylinder 8, the end of the top of the lifting hydraulic cylinder 8 is fixedly connected with the assembly plate 7, the end of the piston rod of the lifting hydraulic cylinder is connected with the installation plate 9, the installation plate 9 can be driven to move up and down when the piston rod of the lifting hydraulic cylinder 8 moves up and down, and then the distance between the installation plate 9 and the assembly plate 7 is changed, namely the height of; the assembly plates 7 on two sides of the lifting hydraulic cylinder 8 are symmetrically provided with support rods 10, telescopic rods 11 are movably sleeved in the support rods 10, one ends of the telescopic rods 11 are fixedly connected with the mounting plate 9, when the mounting plate 9 transversely moves, the mounting plate 9 can form transverse thrust on the assembly plates 7 by matching the support rods 10 with the telescopic rods 11, so that the mounting plate 9 can drive the assembly plates 7 to transversely move through the support rods 10 and the telescopic rods 11, and further the assembly plates 7 can drive the tail of the vehicle body to transversely move, so that the tail of the vehicle body can be steered at any angle by taking front wheels of a vehicle head as axes, small-angle repeated steering is not needed, the control difficulty is greatly reduced, and the probability of safety accidents caused by steering is reduced; meanwhile, the supporting rod 10 is matched with the telescopic rod 11, so that the mounting plate 9 can only move up and down along with the lifting hydraulic cylinder 8, and the mounting plate 9 is prevented from being dislocated or inclined relative to the assembling plate 7; reduce mounting panel 9 and assembly plate 7 through bracing piece 10 and telescopic link 11 and to the horizontal shear stress of hydraulic cylinder 8, make hydraulic cylinder 8 atress on the horizontal direction less to produce great space between the sealing washer of avoiding in the hydraulic cylinder 8 and the hydro-cylinder inner wall, and then keep hydraulic cylinder 8's leakproofness, and avoid the hydraulic oil leakage in the hydraulic cylinder 8. The upper surface of the assembly plate 7 is provided with a hinge 5, and the assembly plate 7 is hinged with the fixed plate 1 through the hinge 5; the end head of the other end of the fixed plate 1 is provided with a swing hydraulic cylinder 2, one end of the swing hydraulic cylinder 2 is hinged with the lower end of the support rod 10, the other end of the swing hydraulic cylinder 2 is hinged with the fixed plate 1, the swing hydraulic cylinder 2 is used for laterally folding or unfolding the support rod 10, when the swing hydraulic cylinder 2 folds the support rod 10, the mounting plate 9 can be laterally folded through the support rod 10, and then the height between the mounting plate 9 and the ground is increased, so that the normal running of a vehicle is prevented from being influenced; when the swing hydraulic cylinder 2 expands the support rod 10, the swing hydraulic cylinder 2 can expand the support rod 10 to a vertical state, and then the lifting hydraulic cylinder 8 can form a support in the vertical direction to the fixed plate 1 through a hinge, namely, a support in the vertical direction is formed to the tail of the vehicle body.

The lower surface of the supporting plate 3 is fixedly connected with the lower surface of the mounting plate 9, the walking motor 3 is arranged on the supporting plate 3, the walking motor 3 is provided with a swinging wheel 4, and the swinging wheel is arranged on the walking motor 3.

The auxiliary steering device is arranged at the bottom of a crossbeam at the tail part of a vehicle body, the lifting hydraulic cylinder 8 and the traveling motor 3 are respectively connected with a hydraulic system of the vehicle, and the swing hydraulic cylinder 2, the lifting hydraulic cylinder 8 and the traveling motor 3 are respectively driven to work by the hydraulic system of the vehicle.

When the turning radius of the road is smaller and the vehicle body can not turn normally, the steering angle can be adjusted by the auxiliary steering device, namely, firstly, the vehicle is stopped, after the vehicle is stopped, the swing hydraulic cylinder 2 is started to work, the piston rod of the swing hydraulic cylinder 2 extends out to drive the support rod 10 to rotate by taking the hinge 5 at the end of the fixed plate 1 as an axis, so that the whole auxiliary steering device is in a vertical state relative to the bottom plate of the vehicle body, then the lifting hydraulic cylinder 8 is started to work, the piston rod of the lifting hydraulic cylinder 8 extends out to drive the mounting plate 9 to move downwards, the swinging wheel 4 is gradually contacted with the ground, after the swinging wheel 4 is contacted with the ground and stressed, the lifting hydraulic cylinder 8 continues to work, the ground supports the swinging wheel 4, the rear wheel of the vehicle body is gradually separated from the ground, the tail part of the vehicle body is lifted, after the rear wheel of the vehicle body is separated from the ground, the running motor 3 is started to work, so that the steering angle adjustment of the vehicle body swing is realized through the rotation of the swinging wheel 4.

After the vehicle body is turned, the running motor 3 is stopped, the lifting hydraulic cylinder 8 is started to reset, the tail part of the vehicle body gradually descends, the rear wheel of the vehicle body is contacted with the ground and supports the tail part of the vehicle body, and the swinging hydraulic cylinder 2 is started to reset the piston rod of the swinging hydraulic cylinder 2 upwards, so that the whole auxiliary steering device is folded towards one side of the bottom plate of the vehicle body by taking the hinge 5 as an axis, and the swinging wheel 4 does not influence the normal running of the vehicle.

As an improvement of the auxiliary steering device, the radial lifter can also be composed of an assembly plate 7, a supporting hydraulic cylinder 12 and a mounting plate 9, the supporting hydraulic cylinder 12 is symmetrically arranged on the lower surface of the assembly plate 7, and the mounting plate 9 is arranged at the end of a piston rod of the supporting hydraulic cylinder 12; a cylinder barrel of the supporting hydraulic cylinder 12 is provided with a reinforcing plate 13 through a guide sleeve 14, and the reinforcing plate 13 is movably connected with the fixed plate 1 through the swing hydraulic cylinder 2.

When the vehicle body needs to be adjusted in steering angle, firstly, the vehicle is stopped, and the swing hydraulic cylinder 2 is started to work, so that the swing wheel 4 and a vehicle body bottom plate are in a vertical state; then the supporting hydraulic cylinder 12 is started to work, the swinging wheel 4 is gradually contacted with the ground, and the rear wheel of the vehicle body is separated from the ground after the swinging wheel 4 is contacted with the ground. After the rear wheel of the vehicle body is separated from the ground, the walking motor 3 is started to work, and the steering angle of the vehicle body can be adjusted through the steering wheel 4.

The auxiliary steering device has a simple structure, and the steering wheel can be retracted by matching the radial lifter with the swing hydraulic cylinder 2, so that the steering wheel 4 does not influence the normal running of the vehicle; the steering wheel 4 is matched with the walking motor 3, so that the automobile can be adjusted in steering angle, the small-angle repeated steering is not needed, the control is simple, the problem of difficulty in steering the lengthened automobile in special occasions is solved, and the steering device is particularly suitable for being used when the lengthened lorry steers.

Claims

1. The utility model provides a power assisted steering device for extension lorry, it comprises radial riser, fixed plate (1), swing hydraulic cylinder (2), walking motor (3) and pendulum to wheel (4), its characterized in that: the upper end of the radial lifter is provided with a fixed plate (1) through a hinge (5), the end of the fixed plate (1) at one side of the radial lifter is provided with a swing hydraulic cylinder (2), the top end of the swing hydraulic cylinder (2) is hinged with the fixed plate (1), and the end of a piston rod of the swing hydraulic cylinder (2) is movably connected with the radial lifter; the lower end of the radial lifter is provided with a traveling motor (3) through a supporting plate (6), and the traveling motor (3) is provided with a swinging wheel (4).

2. The power assisted steering apparatus for an extended truck according to claim 1, characterized in that: the radial lifter is composed of an assembly plate (7), a lifting hydraulic cylinder (8) and a mounting plate (9), the lifting hydraulic cylinder (8) is mounted on the lower surface of the assembly plate (7), and the mounting plate (9) is mounted at the end of a piston rod of the lifting hydraulic cylinder (8); the assembly plates (7) on the two sides of the lifting hydraulic cylinder (8) are symmetrically provided with support rods (10), telescopic rods (11) are movably sleeved in the support rods (10), and the telescopic rods (11) are fixedly connected with the mounting plate (9).

3. The power-assisted steering device for the lengthened lorry as claimed in claim 2, characterized in that: the lower end of the supporting rod (10) is hinged with the end of a piston rod of the swing hydraulic cylinder (2).

4. The power-assisted steering device for the lengthened lorry as claimed in claim 2, characterized in that: the assembly plate (7) is hinged with the fixed plate (1) through a hinge (5).

5. The power assisted steering apparatus for an extended truck according to claim 1, characterized in that: the supporting plate (6) is fixedly connected with the lower surface of the mounting plate (9).

6. The power assisted steering apparatus for an extended truck according to claim 1, characterized in that: the radial lifter is composed of an assembly plate (7), a supporting hydraulic cylinder (12) and a mounting plate (9), the supporting hydraulic cylinder (12) is symmetrically arranged on the lower surface of the assembly plate (7), the mounting plate (9) is mounted at the end of a piston rod of the supporting hydraulic cylinder (12), and a reinforcing plate (13) is mounted on a cylinder barrel of the supporting hydraulic cylinder (12) through a guide sleeve (14); the reinforcing plate (13) is movably connected with the fixed plate (1) through the swing hydraulic cylinder (2).