CN203601361U - Automobile power-assisted steering structure - Google Patents

Abstract

The utility model relates to an automobile power steering structure, which mainly adds a power steering oil cylinder fixed on the steering front axle to the original steering system; It is connected with the steering straight rod; the steering knuckle arm on the other side is connected with the output end of the power steering cylinder; the steering gear is connected with the power steering cylinder through the oil circuit. The structure is simple and the installation is convenient, and it can effectively solve the problem of the heavy steering of the heavy-duty vehicle when it is heavily loaded, so that the driver can have better driving comfort and improve the driving safety at the same time.

Description

Automotive Power Steering Structure

technical field

The utility model belongs to the technical field of vehicle steering systems, in particular to an automobile power steering structure.

Background technique

During the use of heavy-duty vehicles, the steering system under heavy load will seriously affect the driving comfort and driving safety of the vehicle, and a reasonable steering system is very important. The traditional steering system includes steering pump, dynamic oil tank, steering wheel, steering gear, steering drop arm, steering straight rod, steering front axle, steering pipeline, etc. The steering gear is fixed on the outside of the frame, and the upper part of the steering gear is connected to the steering wheel through a spline sleeve; the upper end of the steering drop arm is connected to the steering gear, and the lower end is connected to the steering straight rod; the steering straight rod is connected to the knuckle arm of the steering front axle. The dynamic oil tank supplies oil to the steering pump; the steering pump supplies oil to the steering gear; oil is returned to the dynamic oil tank through the oil return port of the steering gear. The left and right turning force of the steering wheel is finally transmitted to the steering knuckle arm of the steering front axle, and the movement of the steering knuckle arm drives the steering front axle to control the rotation of the wheels. At present, heavy-duty vehicles turn heavy due to the increased friction of the wheels when they are heavily loaded, which seriously affects driving comfort and driving safety.

Utility model content

The utility model aims at the deficiencies in the background technology, and proposes a flexible and light power steering structure for automobiles under heavy load, so as to improve driving comfort and driving safety.

The technical solution adopted in the utility model is: the power steering structure of the automobile, including the steering gear, the steering pendant arm, the steering straight rod, the steering front axle, the dynamic oil tank, and the steering pump; the steering gear is fixed on the outside of the vehicle frame; the upper end of the steering pendant arm It is connected with the steering gear, and the lower end is connected with the steering straight rod; the steering straight rod is connected with the steering front axle; the dynamic oil tank is connected with the steering pump through the oil circuit; the steering pump is connected with the steering gear through the oil circuit; the steering gear is connected with the steering gear through the oil circuit The oil tank returns oil; it is characterized in that: it also includes a power steering oil cylinder fixed on the steering front axle; the steering front axle is provided with a first steering knuckle arm on one side and a second steering knuckle arm on the other side; The first steering knuckle arm is connected to the steering straight rod; the second steering knuckle arm is connected to the output end of the power steering oil cylinder; the steering gear is connected to the power steering oil cylinder through an oil circuit.

Preferably, the power steering cylinder is fixed on the through-beam of the steering front axle.

Further preferably, a horizontal installation bracket is provided in the middle of the through-beam, and the power steering cylinder is fixed on the horizontal installation bracket.

The utility model has the beneficial effects of simple structure and convenient installation, and can effectively solve the problem of heavy steering of heavy-duty vehicles under heavy load, so that the driver has better driving comfort and improves driving safety at the same time.

Description of drawings

Fig. 1 is a schematic diagram of the front view of the utility model

Fig. 2 is a top view schematic diagram of the utility model

Detailed ways

As shown in Figure 1 and Figure 2, the automobile power steering structure includes a steering gear 1, a steering drop arm 3, a steering straight rod 4, a steering front axle 5, a dynamic oil tank 6, a steering pump 7, and a power steering cylinder 8; The steering gear 1 is fixed on the outside of the frame 2; the upper end of the steering drop arm 3 is connected with the steering gear 1, and the lower end is connected with the steering straight rod 4; the steering straight rod 4 is connected with the steering front axle 5; the dynamic oil tank 6 passes through the steering pump oil inlet pipe 7.1 It is connected with the steering pump 7; the steering pump 7 is connected with the steering gear 1 through the steering gear oil inlet pipe 1.1; the steering gear 1 returns oil to the dynamic oil tank 6 through the oil return pipe 6.1; the fixed end of the power steering cylinder 8 is fixed on the On the horizontal mounting bracket 5.31 of the steering front axle 5 through the middle part of the beam 5.3; the first steering knuckle arm 5.1 is provided on one side of the steering front axle 5, and the second steering knuckle arm 5.2 is provided on the other side, and the first steering knuckle arm 5.1 It is connected with the straight tie rod 4; the second steering knuckle arm 5.2 is connected with the output end of the power steering cylinder 8; the steering gear 1 is connected with the power steering cylinder 8 through the power steering cylinder oil circuit 8.1.

The power steering cylinder is added on the basis of the original steering system, and the second steering knuckle arm is added to the right side of the steering front axle. The end is connected with the right steering knuckle arm of the steering front axle; the dynamic oil tank supplies oil to the steering pump; the steering pump supplies oil to the steering gear, and the steering gear returns oil to the dynamic oil tank, so that the dynamic oil tank, steering pump and The steering gear forms a large circuit; the steering gear and the power steering cylinder form a small circuit. At the same time, the circuit between the output of the steering gear and the power steering oil cylinder is directly flushed, reducing the setting of the oil circuit. In this way, the steering force when the steering wheel turns left and right is finally transmitted to the left steering knuckle arm of the steering front axle through the steering gear, steering drop arm, and steering straight rod. The movement of the left steering knuckle arm drives the steering front axle to control the rotation of the wheels; The telescopic movement drives the right steering knuckle arm to assist the steering of the wheels. Thereby better driving comfort, but also improve driving safety.

Claims (3)

1. automobile assisted power steering structure, comprises deflector (1), steering drop arm (3), steering drag link (4), front steering axle (5), moving oil tank (6), the steering pump (7) of turning; Deflector (1) is fixed on vehicle frame (2) outside; Steering drop arm (3) upper end is connected with deflector (1), and lower end is connected with steering drag link (4); Steering drag link (4) is connected with front steering axle (5); Moving turn oil tank (6) and be connected with steering pump (7) by oil circuit; Steering pump (7) is connected with deflector (1) by oil circuit; Deflector (1) is turned oil tank (6) and is connected with moving by oil circuit; It is characterized in that: also comprise the servo-steering oil cylinder (8) being fixed on front steering axle (5); Described front steering axle (5) side is provided with the first track arm (5.1), and opposite side is provided with the second track arm (5.2); Described the first track arm (5.1) is connected with steering drag link (4); Described the second track arm (5.2) is connected with the mouth of described servo-steering oil cylinder (8); Deflector (1) is connected with described servo-steering oil cylinder (8) by oil circuit.

2. automobile assisted power steering structure according to claim 1, is characterized in that: described servo-steering oil cylinder (8) is fixed on the through beam (5.3) of described front steering axle (5).

3. automobile assisted power steering structure according to claim 2, is characterized in that: described through beam (5.3) middle part is provided with horizontal mounting bracket (5.31), and described servo-steering oil cylinder (8) is fixed on described horizontal mounting bracket (5.31).

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