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An electric double-screw steering gear
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A double-helix, steering gear technology, applied in the direction of the electric steering mechanism, etc., to achieve the effect of stable steering and precise steering control
Active Publication Date: 2018-05-04
CHONGQING QIAOMAI SCI & TECH CO LTD
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3. The uneven impact of the road surface does not affect the direction control device
Method used
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Embodiment 1
[0025] Such as figure 1 Shown: an electric double-helix steering gear, including a motor 1, a left lead ball screw 2, a right lead ball screw 3, a left ball nut cylinder 4, a right ball nut cylinder 5, a steering position Hall sensor 6, a One permanent magnet 7, left steering ball head 8, right steering ball head 9, steering fixed support 10.
[0026] The motor is provided with a rotor, and the left lead ball screw and the right lead ball screw are respectively located at the left and right ends of the motor and are coaxially and rigidly connected with the rotor. The left ball nut barrel and the right ball nut barrel are sleeved on the left lead ball screw and the right lead ball screw respectively; when the motor drives the left lead ball screw and the right lead ball screw to rotate, the left ball nut barrel, right The ball nut barrel makes linear motion in the same direction. The steering fixed bracket is sheathed on the outside of the motor, the left lead ball screw, the...
Embodiment 2
[0031] Such as image 3 , Figure 4 As shown, the electric twin-screw steering gear of embodiment 1 is used in conjunction with the electronic steering wheel device. The electronic steering wheel device includes a steering wheel 100 , a fixed plate 101 , a steering resistance adjuster 102 , a fixed hollow bracket 103 , a steering wheel touch sensor 104 , a steering position indicator 105 , a second permanent magnet 106 and a commutation Hall sensor 107 .
[0032] The steering resistance adjuster is connected to the top of the fixed hollow bracket, the center of the steering wheel is connected to the steering resistance adjuster, the fixed plate cover is arranged at the center of the steering wheel and the fixed plate is connected to the fixed hollow bracket. Fixed connection at the top. The fixed hollow support and the fixed disk do not rotate when the direction rotating disk rotates. A ring of second permanent magnets is arranged on the steering wheel below the fixed wheel...
Embodiment 3
[0035] The difference between embodiment 3 and embodiment 1 is that the first permanent magnet in embodiment 1 is installed on the outer wall of the right ball nut barrel, the steering position Hall sensor is installed on the inner wall of the steering fixed bracket and the steering position Hall sensor The position corresponds to the position of the first permanent magnet.
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Abstract
The invention discloses an electric double helix steering machine, which relates to the field of automobile steering system. The electric double helix steering machine comprises an electric motor (1), a left lead ball screw (2), a right lead ball screw (3), a left ball nut cylinder (4), a right ball nut cylinder (5), a steering position Hall sensor (6), a first permanent magnet (7), a left steering ball (8), a right steering ball (9) and a steering fixed bracket (10). The invention can be used together with a direction control device in the field and is advantaged in that manual phase shifting and manual rotation speed of the steering electric motor are realized, the steering direction is easily and accurately controlled as the direction control device is in non-mechanical connection with the steering machine, and the direction control device is not affected by pavement unevenness impact.
Description
technical field [0001] The invention relates to the field of automobile steering systems, in particular to an electric double-screw steering gear. Background technique [0002] The electric double helical steering gear is used to control the steering of the car wheels. [0003] The Chinese patent application number CN201410320359.7 discloses a steering gear of an automobile steering system, a steering system of an automobile, and an automobile. steering torque; and a steering actuator for driving steering of the steered wheels. Wherein, the steering gear further includes a transmission ratio adjustment device, through which the steering input shaft is in transmission connection with the steering actuator. Through the solution of the invention, the car can realize rapid steering with a smaller steering wheel angle at low speed, and can realize safe steering with a larger steering wheel angle at high speed, so as to maintain the stability and safety of the car. [0004] The...
Claims
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Application Information
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