High-resistance stable steering device of semi-trailer tractor

A steering device and tractor technology, applied in the field of vehicle traction, can solve problems such as easy aging or wear, poor rear wheel follow-up steering effect, and tail flicking of semi-trailers, so as to reduce the probability of accidents, narrow the scope, and prevent flicking Tail or rollover effect

Active Publication Date: 2015-06-03
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The semi-trailer is the same as all motor vehicles. During the turning process, the driving wheel traces of the rear wheels and the front wheels are not in the same arc. The turning radius of the front inner wheel is larger, while the turning radius of the rear inner wheel is smaller. The inner wheel forms a difference in turning radius, which easily creates a blind spot, and the driver cannot see the road conditions in the blind spot. If there are cars or pedestrians in the blind spot, the semi-trailer will easily scrape the cars or pedestrians on both sides during the turning process. fall, resulting in a safety accident
[0003] In view of this situation, people have invented a device that can make the rear wheel of a motor vehicle rotate with the front wheel. Steering arm, left front steering shaft, front tie rod, right front steering arm, right front wheel, right front steering shaft connected sequentially, right rear steering shaft, right rear wheel, right rear steering arm, rear tie rod, left rear steering shaft, left rear steering arm 1. The right rear wheels are sequentially connected, the active lever is hinged with the right front steering arm, the driven lever is hinged with the right rear steering arm, and the active lever can slide in the driven lever. This steering device can realize the follow-up steering of the rear wheels, reducing the The radius difference between the rear wheel and the front wheel when turning reduces the blind spot of the motor vehicle when turning. However, when the device is used on a semi-trailer, it will carry the following technical problems. Because the semi-trailer has a long body and a large volume, when turning, If the steering angle of the rear wheels is too small, the follow-up steering effect of the rear wheels is poor, the turning radius difference between the front and rear wheels is still large, and there is still a large range of blind spots. If the steering angle of the rear wheels is too large, it will make the semi-trailer The rear of the vehicle produces a large inertia, which may easily cause the semi-trailer to flick or roll over. Therefore, the steering angle of the rear wheel of the semi-trailer must be controlled within a reasonable range
At the same time, during the operation of the vehicle, the use of the steering device is prone to aging or wear, especially for heavy-duty vehicles such as semi-trailers and trailers. The huge inertia during driving is also an important factor affecting its safe driving. At this time, the steering device The quality and service life of the vehicle will greatly affect the safety of the vehicle

Method used

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  • High-resistance stable steering device of semi-trailer tractor
  • High-resistance stable steering device of semi-trailer tractor
  • High-resistance stable steering device of semi-trailer tractor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The main components of the austenitic steel core are (wt.%): C 0.07%; Si 0.9%; Mn1.3%; Ni 7%; Cr 20%; N 0.23%; Al 1.6%, the balance is Fe and others unavoidable impurities.

[0052] The main raw material of the ceramic layer is (wt.%): Al 2 o 3 50%; ZrO 2 30%; white quartz sand 9%; Cr 2 o 3 1.2%; Kaolin 5%; MgO 1.2%.

[0053] The main raw material (wt.%) of the ceramic layer also includes silicon carbide whiskers 3%.

[0054] The main components of the rubber layer are (in parts by weight): 100 parts of nitrile rubber; 60 parts of styrene-butadiene rubber; 22 parts of coupling agent γ-mercaptopropyltrimethoxysilane; plasticizer diethylene glycol monobutyl ether 16 parts of adipate; 22 parts of porous white carbon black as a reinforcing agent; 8 parts of 0.3-0.5mm steel fiber; friction aid 2-bromo-8-formyl-5,11-di-n-hexylindole [3 , 8 parts of 2-b]-carbazole. Styrene-butadiene rubber and nitrile rubber are kneaded with other additives after kneading, and are read...

Embodiment 2

[0057] The main components of the austenitic steel core are (wt.%): C 0.06%; Si 0.8%; Mn1.0%; Ni 9%; Cr 14%; N 0.20%; Al 1.4%, the balance is Fe and others unavoidable impurities.

[0058] The main raw material of the ceramic layer is (wt.%): Al 2 o 3 55%; ZrO 2 22%; white quartz sand 10%; Cr 2 o 3 1.3%; Kaolin 6%; MgO 1.7%.

[0059] The main raw material (wt.%) of the ceramic layer also includes silicon carbide whiskers 4%.

[0060] The main components of the rubber layer are (in parts by weight): 100 parts of nitrile rubber; 78 parts of styrene-butadiene rubber; 20 parts of coupling agent γ-mercaptopropyltrimethoxysilane; plasticizer diethylene glycol monobutyl ether 15 parts of adipate; 25 parts of porous white carbon black as a reinforcing agent; 10 parts of 0.3-0.5mm steel fiber; friction aid 2-bromo-8-formyl-5,11-di-n-hexylindole [3 , 9 parts of 2-b]-carbazole. Styrene-butadiene rubber and nitrile rubber are kneaded with other additives after kneading, and are re...

Embodiment 3

[0063] The main components of the austenitic steel core are (wt.%): C 0.10%; Si 1.05%; Mn0.8%; Ni 15%; Cr 10%; N0.15%; other unavoidable impurities.

[0064] The main raw material of the ceramic layer is (wt.%): Al 2 o 3 60%; ZrO 2 18%; white quartz sand 10.5%; Cr 2 o 3 1.4%; Kaolin 4.7%; MgO 0.3%.

[0065] The main raw material (wt.%) of the ceramic layer also includes 5% of carbon fiber.

[0066] The main components of the rubber layer are (in parts by weight): 100 parts of nitrile rubber; 80 parts of styrene-butadiene rubber; 25 parts of coupling agent γ-mercaptopropyl trimethoxysilane; plasticizer diethylene glycol monobutyl ether 18 parts of adipate; 20 parts of porous white carbon black as a reinforcing agent; 9 parts of steel fibers of 0.3-0.5mm; friction aid 2-bromo-8-formyl-5,11-di-n-hexylindole [3 , 10 parts of 2-b]-carbazole. Styrene-butadiene rubber and nitrile rubber are kneaded with other additives after kneading, and are ready for use after mixing evenly...

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PUM

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Abstract

The invention discloses a high-resistance stable steering device of a semi-trailer tractor. The high-resistance stable steering device of the semi-trailer tractor comprises a lower pallet and an upper pellet, wherein the lower pallet is connected with the tractor; the upper pallet is connected with the semi-trailer tractor; the lower pallet is connected with the upper pallet; the upper pallet and the lower pallet can rotate relatively; and a steering mechanism which can rotate and is connected with semi-trailer wheels is arranged between the lower pallet and the upper pallet. When the lower pallet steers in a preset angle, the steering mechanism is connected with the lower pallet and rotates along with the lower pallet; and when the lower pallet rotates out of the preset angle, the steering mechanism is separated from the lower pallet and is connected with the upper pallet. The high-resistance stable steering device of the semi-trailer tractor is simple in structure, is practical and convenient and has high wear resistance; and the service life of the high-resistance stable steering device is prolonged.

Description

technical field [0001] The invention belongs to the technical field of vehicle traction, and relates to a steering device, in particular to a high stability steering device for a semi-trailer tractor. Background technique [0002] The semi-trailer is the same as all motor vehicles. During the turning process, the driving wheel traces of the rear wheels and the front wheels are not in the same arc. The turning radius of the front inner wheel is larger, while the turning radius of the rear inner wheel is smaller. The inner wheel forms a difference in turning radius, which easily creates a blind spot, and the driver cannot see the road conditions in the blind spot. If there are cars or pedestrians in the blind spot, the semi-trailer will easily scrape the cars or pedestrians on both sides during the turning process. fall, resulting in a safety accident. [0003] In view of this situation, people have invented a device that can make the rear wheel of a motor vehicle rotate with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D13/00
CPCB62D13/025
Inventor 赵晶邱敏刘锡宁陈晓平
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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