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Follow-up device capable of driving semitrailer carriage to move longitudinally and semitrailer

A follow-up device and semi-trailer technology, which is applied in the direction of motor vehicles, tractor-trailer combination, transportation and packaging, etc., can solve the problems of semi-trailer turning blocked, etc., and achieve the goal of improving market competitiveness, reducing wind resistance and reducing transportation costs Effect

Pending Publication Date: 2021-08-06
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For reducing the gap between the tractor cab and the semi-trailer compartment of the semi-trailer, there will be interference contact between the front corner of the semi-trailer compartment and the rear edge of the tractor cab when turning, causing the semi-trailer to be blocked from turning.

Method used

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  • Follow-up device capable of driving semitrailer carriage to move longitudinally and semitrailer
  • Follow-up device capable of driving semitrailer carriage to move longitudinally and semitrailer
  • Follow-up device capable of driving semitrailer carriage to move longitudinally and semitrailer

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] First of all, it needs to be explained that the "horizontal" mentioned in this technical solution refers to the width direction of the semi-trailer, and the "longitudinal" refers to the length direction of the semi-trailer.

[0027] A follow-up device that can drive the longitudinal movement of the semi-trailer compartment, such as Figure 1 ~ Figure 3 with Figure 5 As shown, the follower is located between the tractor 100 and the semi-trailer compartment 200, and its bottom is fixed with the tractor 100, including the saddle 1, the slider crank mechanism, the generating mechanism and the driving mechanism.

[0028] The saddle 1 is located at the rear of the tractor 100 and is connected with the semi-trailer compartment 200 through the traction pin shaft. When the semi-trailer turns, the semi-trailer compartment 200 rotates along the traction pin shaft.

[0029] The generating mechanism is vertically arranged, and is a multiplication mechanism in which gears and racks...

Embodiment 2

[0038] Such as Figure 4 As shown, the specific structure of the driving mechanism can also be replaced by a servo motor 51 connected to the center of the crank part, and the servo motor 51 is connected to a control output end of a controller 52 .

[0039] Wherein, the controller 52 is a programmable logic controller based on PLC, and the control button of the controller 52 is arranged in the cab of the tractor, which is convenient for the driver to control the operation when turning. Specifically, when the semi-trailer enters a turning state, the driver presses the start button, and the controller 52 controls the operation of the servo motor 51 to start the operation of the slider crank mechanism, so that the longitudinal movement of the semi-trailer compartment 200 is achieved, so that out of the turning gap. When the relative rotation returns to the straight-ahead state after the turn is completed, the crank part rotates for a full circle, driving the multiplication slide ...

Embodiment 3

[0042] For embodiment one and embodiment two are further preferred, in order to ensure that when turning, the saddle 1 drives the semi-trailer compartment 200 to give enough distance backwards, that is, the gap between the tractor 100 and the semi-trailer compartment 200 can be made Minimal, to minimize the wind resistance during the driving of the semi-trailer. The distance between the connecting end of the crank part and the transverse groove 311 and the rotation center of the crank part is greater than or equal to 300-360 mm.

[0043] Moreover, at least three multiplication planetary gears 23 arranged longitudinally are connected to each longitudinal sliding block 312 . Drive strength can be guaranteed.

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Abstract

The invention discloses a follow-up device capable of driving a semitrailer carriage to move longitudinally and a semitrailer applying the follow-up device. The follow-up device is located between a tractor and a semitrailer carriage and comprises a saddle, a slider-crank mechanism, a generating mechanism and a driving mechanism. When the semitrailer turns, as an included angle is formed between a tractor cab and the axis of the semitrailer carriage, the driving mechanism drives the crank sliding block mechanism to drive a multiplication planetary gear to longitudinally move backwards in a tooth groove formed by a fixed rack and a movable rack, the fixed rack drives the multiplication planetary gear to rotate, and therefore the multiplication planetary gear drives a saddle bottom plate to longitudinally move backwards; the follow-up backward movement adjustment of the semitrailer carriage is achieved, and the gap between the tractor cab and the semitrailer carriage of the semitrailer is enlarged; after turning is finished and the relative rotation returns to the straight running, the driving mechanism drives the generating mechanism to reset, the saddle longitudinally moves forwards, the gap between the tractor cab and the semitrailer carriage is reduced again, and the whole vehicle recovers to the wind resistance reducing state.

Description

technical field [0001] The invention relates to the field of semi-trailers, in particular to a follow-up device capable of driving the longitudinal movement of the compartment of the semi-trailer and the semi-trailer. Background technique [0002] The competition in the semi-trailer market is becoming increasingly fierce, which requires manufacturers to continuously reduce fuel consumption, improve their transportation capacity, and reduce the wind resistance of trucks, thereby improving market competitiveness. Studies have confirmed that when the vehicle is running at high speed, the greatest resistance comes from the air. The higher the vehicle speed, the greater the air resistance the vehicle receives. The increase in air resistance is proportional to the square of the increase in vehicle speed. Experiments have shown that when the vehicle speed is higher than 80km / h, nearly half of the fuel consumption is used to overcome air resistance. [0003] When the semi-trailer i...

Claims

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Application Information

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IPC IPC(8): B62D53/08
CPCB62D53/0814
Inventor 陈青果
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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