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Automatic anti-folding device for tractor-semitrailer

A technology for folding devices and automobiles and trains, applied in the direction of mechanical brake transmission devices, brakes, etc., can solve the problems of not being widely used in practical applications, insufficient real-time and accurate control, high energy consumption of anti-folding devices, etc., to meet the requirements of hanging and hanging Transportation requirements, ease of repair and replacement, and the effect of preventing folding

Inactive Publication Date: 2011-04-27
NORTHEASTERN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the disadvantages of this type of anti-folding device, such as high energy consumption, more components, and unsuitability for drop-and-hook transportation, especially the lack of real-time and accurate control, they have not been widely used in practical applications.

Method used

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  • Automatic anti-folding device for tractor-semitrailer
  • Automatic anti-folding device for tractor-semitrailer
  • Automatic anti-folding device for tractor-semitrailer

Examples

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Embodiment Construction

[0044] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

[0045] In the following examples: STC89S52 is used for the microcontroller, ADC0831 is used for the ADC, KMI1-15 is used for the vehicle speed sensor, SP2801A502 is used for the steering wheel angle sensor, SP2821A502 is used for the fifth wheel angle sensor, 4V430 is used for the quick release solenoid valve, and 4V430 is used for the brake solenoid valve .

[0046] like Figure 1 to Figure 4 As shown, the automatic anti-folding device for semi-trailer trains of the present invention includes a cam drum brake 11, a crank linkage and a control system;

[0047] Described cam drum brake 11 is prior art, and it comprises brake shoe 12, brake camshaft 13, brake bottom plate 14, brake drum 15, brake air chamber 16 and return spring 17;

[0048] The crank-link mechanism is composed of a crank 21 and a combined connecting rod 22. The combined connecting rod 2...

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Abstract

The invention discloses an automatic anti-folding device for a tractor-semitrailer. The device comprises a cam drum type brake (11), a crank connecting rod mechanism and a control system, when four conditions, namely a vehicle speed, a rotation angle of a steering wheel, a rotation angle of a fifth wheel and a position of a brake pedal, meet corresponding conditions simultaneously, the control system transmits a brake command to a brake solenoid valve (K1), the relative rotation between a tractor (4) and a semitrailer (5) is restrained by the cam drum type brake 11 and the crank connecting rod mechanism, and the folding is prevented during brake; and the device can adjust the length of a combined connecting rod (22) so as to adapt to different types of tractors or mounting positions and be convenient to maintain and replace. The device can be applied to various tractor-semitrailers, and is used for preventing folding the semitrailer (5) caused by inertia due to braking deceleration oremergency braking during high-speed running.

Description

technical field [0001] The invention belongs to the technical field of automobile trains, in particular to an automatic anti-folding device during high-speed emergency braking of semi-trailer automobile trains. Background technique [0002] Relevant data show that within a certain transportation radius, the transportation efficiency and transportation cost of semi-trailer trains are the most economical, which is much higher than that of railway transportation and sea transportation. The outstanding advantages of the semi-trailer train in road transportation make its application more and more extensive. On the other hand, due to the characteristics of its own structure, in the process of high-speed emergency braking, its stability is reduced compared with that of a single bicycle, and it is easy to produce a special instability phenomenon-folding, which increases the occurrence of this phenomenon. The possibility of traffic accidents is a great obstacle in the use of semi-tr...

Claims

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Application Information

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IPC IPC(8): B60T11/08B60T8/17
Inventor 周淑文张思奇刘冲唐传茵陈泽宇
Owner NORTHEASTERN UNIV
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