CN201951543U - Vibrational energy power-assisted vehicle steering system - Google Patents

Abstract

The utility model relates to a vibration energy-assisted steering system of an automobile, which comprises a steering wheel and a steering control valve connected to the steering wheel. The output of the steering gear is connected to the steering transmission mechanism, and also includes a shock absorber. The shock absorber is a piston-type structure. The upper chamber of the piston is an oil chamber and the lower chamber is a nitrogen chamber. The upper end of the shock absorber is equipped with a compression valve and an extension valve. The compression valve is connected to the steering oil tank and the steering control valve through the pipeline, and the expansion valve is connected to the accumulator through the pipeline. The output of the steering oil tank is connected to the steering control valve through the steering hydraulic pump, and the accumulator is connected to the steering control valve through the electromagnetic check valve. The output end of the steering hydraulic pump and the steering control valve, the one-way solenoid valve is controlled by the steering wheel. It can reduce the fuel consumption of the automobile, convert part of the vibration energy into hydraulic energy, and has the characteristics of simple structure, convenient use and low cost.

Description

A kind of vibration energy assisted automobile steering system

technical field

The utility model relates to a vibration energy-assisted automobile steering system.

Background technique

At present, most of the power steering systems of automobiles use hydraulic power assist, and all the hydraulic energy comes from the steering oil pump driven by the engine. While the car turns lightly, it also increases fuel consumption.

Utility model content

The purpose of the utility model is to provide a vibration energy-assisted steering system for automobiles, which can reduce the fuel consumption of the automobile, convert part of the vibration energy into hydraulic energy, and has the characteristics of simple structure, convenient use and low cost.

The technical scheme adopted by the utility model in order to achieve the above-mentioned purpose includes, including the steering wheel and the steering control valve connected to the steering wheel, the steering control valve is connected to the right chamber of the steering power cylinder of the power steering gear, and the steering power cylinder is connected to the left chamber of the steering power cylinder. The output of the steering gear is connected to the steering transmission mechanism, and also includes a shock absorber. The shock absorber is a piston structure. The upper chamber of the piston is an oil chamber and the lower chamber is a nitrogen chamber. The upper end of the shock absorber is provided with a compression valve and an extension valve. The compression valve is connected to the steering oil tank and the steering control valve through the pipeline, and the expansion valve is connected to the accumulator through the pipeline. The output of the steering oil tank is connected to the steering control valve through the steering hydraulic pump, and the accumulator is connected to the steering control valve through the electromagnetic check valve. The output end of the steering hydraulic pump and the steering control valve, the one-way solenoid valve is controlled by the steering wheel.

Compared with the prior art, the utility model has the advantages that:

1. Can reduce vehicle fuel consumption;

2. It can convert part of vibration energy into hydraulic energy;

3. It can prolong the service life of the shock absorber;

4. It has the characteristics of simple structure, convenient use and low cost.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Accompanying drawing is the structural principle schematic diagram of the utility model.

In the figure: extension valve 2-compression valve 3-left front shock absorber 4-piston 5-nitrogen chamber 6-steering transmission mechanism 7-right chamber of steering power cylinder 8-power steering gear 9-left chamber of steering power cylinder 10-steering control Valve 11-steering wheel 12-electromagnetic one-way valve 13-steering hydraulic pump 14-steering oil tank 15-accumulator 16-pressure limiting valve 17-right front shock absorber

Detailed ways

It includes a steering wheel 11 and a steering control valve 10 connected to the steering wheel 11. The steering control valve 10 is connected to the right chamber 7 of the steering power cylinder of the power steering gear 8, and is connected to the left chamber 9 of the steering power cylinder. The output of the power steering gear 8 is connected to the steering transmission. Mechanism 6, as shown in the accompanying drawings, also includes a shock absorber. The shock absorber is a piston-type structure. The upper chamber of the piston 4 is an oil chamber and the lower chamber is a nitrogen chamber 5. The upper end of the shock absorber is provided with a compression valve 2 and an extension valve. 1. The compression valve 2 is connected to the steering oil tank 14 and the steering control valve 10 through the pipeline, the expansion valve 1 is connected to the accumulator 15 through the pipeline, and the output of the steering oil tank 14 is connected to the steering control valve 10 through the steering hydraulic pump 13 , the accumulator 15 is connected to the output end of the steering hydraulic pump 13 and the steering control valve 10 through the electromagnetic one-way valve 12 , and the one-way electromagnetic valve 12 is controlled by the steering wheel 11 .

The accumulator 15 is provided with a pressure limiting valve 16, and the pressure limiting valve 16 is connected to the oil tank 14 through a pipeline.

Described shock absorber is provided with two, comprises left front shock absorber 3 and right front shock absorber 17.

Example,

As shown in the drawings, it includes a shock absorber, an accumulator, a steering oil tank, a steering oil pump, an electromagnetic check valve, a power steering gear, a steering control mechanism and a steering transmission mechanism. The shock absorber includes a compression valve and an oil inlet hole, an expansion valve and an oil outlet hole, a piston and a nitrogen chamber; the accumulator is provided with a pressure limiting valve and an oil return hole; the electromagnetic one-way valve is controlled by the steering wheel. The steering system can recover part of the vibration energy of the vehicle and transform it into hydraulic energy for power steering of the vehicle, reducing the burden on the steering oil pump, thereby reducing fuel consumption.

When the car vibrates and the shock absorber is compressed (the wheel is close to the frame to compress the suspension), the piston 4 moves down, compressing the nitrogen chamber 5 under it to increase the pressure, the volume of the oil chamber above the piston increases, and the oil pressure increases. Descending, the oil in the steering oil tank 14 enters the oil chamber through the oil inlet hole and the compression valve 2. When the suspension is in the extension stroke (the wheel leaves the frame and the shock absorber is elongated), the piston 4 moves up to reduce the volume of the oil chamber, the oil pressure rises, the compression valve 2 is closed, and the oil passes through the extension valve 1 and The oil outlet and the accumulator oil inlet pipe enter the accumulator 15. As the oil pressure in the accumulator 15 rises, the oil outlet resistance of the shock absorber is increased, and the damping force is further increased. The high-pressure nitrogen in the nitrogen chamber 5 below the piston can reduce the high-frequency vibration generated when the wheel encounters an impact force, and helps to eliminate noise, and has a certain buffering effect.

The accumulator 15 receives and stores high-pressure oil from the left front shock absorber 3 and the right front shock absorber 17 . When the car turns to the right and the steering wheel 11 turns, the output voltage of the steering wheel 11 controls the one-way solenoid valve 12 to open, and the high-pressure oil in the accumulator 15 enters the steering power cylinder through the oil outlet pipe of the accumulator and the electromagnetic one-way valve 12 The right chamber 7, the oil from the steering oil pump 13 also enters the right chamber 7 of the steering power cylinder, the left chamber 9 of the steering power cylinder is connected to the steering oil tank 14, and under the action of oil pressure, the piston in the steering power cylinder moves downward, The left and right wheels are deflected to the right through the steering transmission mechanism 6, thereby realizing the power steering to the right; and when the automobile turns left, the situation is opposite to the above. The accumulator 15 is provided with a pressure limiting valve 16 and an oil return pipe. When the oil pressure inside reaches a specified value, excess oil returns to the steering oil tank 14 through the pressure limiting valve 16 and the oil return pipe.

Claims (3)

1. vibrational energy booster type automobile steering system, comprise steering handwheel (11) and the steering control valve that is connected steering handwheel (11) (10), steering control valve (10) one tunnel connects the right chamber (7) of power cylinder of power steering (8), one the tunnel switches through to chamber (9), a power cylinder left side, power steering (8) output connects steering gear (6), it is characterized in that, also comprise shock absorber, shock absorber is a piston cylinder operator, piston (4) epicoele is that fluid chamber cavity of resorption is nitrogen chamber (5), the shock absorber upper end is provided with compression valve (2) and rebound valve (1), described compression valve (2) connects steering oil reservoir (14) and steering control valve (10) by the road, rebound valve (1) connects energy storage (15) by the road, described steering oil reservoir (14) output connects steering control valve (10) through steering hydraulic pump (13), described energy storage (15) connects steering hydraulic pump (13) mouth and steering control valve (10) through electromagnetism check valve (12), and described unidirectional electrical magnet valve (12) is controlled by steering handwheel (11).

2. the described a kind of vibrational energy booster type automobile steering system of root a tree name claim 1 is characterized in that described energy storage (15) is provided with limiting valve (16), and limiting valve (16) connects steering oil reservoir (14) by the road.

3. the described a kind of vibrational energy booster type automobile steering system of root a tree name claim 1 is characterized in that described shock absorber is provided with two, comprises left front shock absorber (3) and right front shock absorber (17).

Images