CN201140732Y

CN201140732Y - Bidirectional traction low flat-plate semitrailer

Info

Publication number: CN201140732Y
Application number: CNU200720027878XU
Authority: CN
Inventors: 陈庆友; 侯涛; 徐恩亮; 钟春来; 潘燕法
Original assignee: SHANDONG LUFENG SPECIAL-PURPOSE AUTOMOBILE Co Ltd
Current assignee: SHANDONG LUFENG SPECIAL-PURPOSE AUTOMOBILE Co Ltd
Priority date: 2007-09-22
Filing date: 2007-09-22
Publication date: 2008-10-29
Anticipated expiration: 2017-09-22

Abstract

A bidirectional traction low flat plate semi-trailer comprises a frame (1), a front bridge, a front wheel (2), a back bridge, a back wheel (3), traction pins (6), and suspension linkages (4) for lifting the front and the back bridges, wherein the front wheel (2) is arranged on the front end lower side of the frame (1) through the front bridge, the back wheel (3) is arranged on the back end lower side of the frame (1) through the back bridge, the tractions pins (6) are respectively arranged on the front end and the lower end of the frame (1), the suspension linkages (4) are arranged among the front bridge, the back bridge and the frame (1). When drives forwards, the front wheel (2) is lifted away the ground through the suspension linkage (4), and the back wheel is loaded, and when drives backwards, the back wheel (3) is lifted away the ground, and the front wheel is loaded, therefore the semi-trailer has the characteristics of suitable application in narrow channels, especial in driving and head back on the special road condition such as tunnels, stable driving, safety and reliability, flexibility, increased load ability, reduced load surface height, and simple structure and convenient operation and the like.

Description

The bivector traction low flat bed semi trailer

Technical field

The utility model relates to a kind of superimposed trailer, specifically a kind of flat bed trailer that can be hanged down carrying surface by main car bivector traction.

Background technology

Existing superimposed trailer is of a great variety, but is unidirectional the connection between tractor truck and the vehicle frame, and promptly vehicle frame is by being connected with tractor truck at its anterior towing pin that is provided with, and the road conditions that can adapt to the gradient and turn to of the vertical and horizontal adjustment superimposed trailer by the tractor truck saddle.Under some working environment, when superimposed trailer is had certain length requirement and is subjected to the path space restriction, above-mentioned superimposed trailer can't realize turning to tune, can only go ahead can't be to return, as dig built tunnel, river-crossing tunnel etc. particularly, owing to need the special monolithic architecture material of transportation, superimposed trailer is required to satisfy certain length, and under the restriction of tunnel width, the minimum turning radius of superimposed trailer can't be returned by former road forward travel after can't realizing turning to tune, superimposed trailer to transport material, brings very big inconvenience to transport.

Summary of the invention

The purpose of this utility model provides a kind of simple in structure, easy to operate, can change the bivector traction low flat bed semi trailer of headstock flexibly, this superimposed trailer not only can satisfy and resembles under this special road conditions in tunnel, superimposed trailer need not turn to, just can reverse end for end to roll away from by former road, also reduce carrying surface, can transport large-scale integral building materials and equipment.

The technical solution adopted in the utility model is: include vehicle frame, propons, front-wheel, back axle, trailing wheel, towing pin and can make the suspension gear of forward and backward bridge lifting, front-wheel is installed on the propons, propons is arranged on the front end downside of vehicle frame, trailing wheel is installed on the back axle, and back axle is arranged on the rear end downside of vehicle frame; The vehicle frame rear and front end is little gooseneck structure, and its gosling neck structure place, two places is provided with towing pin, and tractor truck can connect to ground by described arbitrary towing pin; Be provided with the suspension gear that can make propons, back axle lifting between propons, back axle and the vehicle frame, suspension gear is communicated with the operating control of tractor truck.

When the needs shipping goods, goods is contained on the vehicle frame, vehicle frame is connected with tractor truck by the towing pin of its front end, handle the operating control of tractor truck,, propons is risen by being installed in the suspension gear at propons place, make front-wheel liftoff, again by tractor truck traction walking, shipping goods.When entering slype, when needing tune to travel (after unloading, need withdraw from slype), only need to handle the operating control of tractor truck, suspension gear by the propons place, propons is fallen, front-wheel is landed, dismantle being connected of towing pin of tractor truck and vehicle frame front end, again the towing pin of tractor truck by the vehicle frame rear end is connected with the rear end of vehicle frame, handle the operating control of tractor truck again, the suspension gear at the back axle place by the vehicle frame rear end rises back axle, and it is liftoff that trailing wheel is risen, under the traction of tractor truck, superimposed trailer need not reverse end for end promptly to travel backward, withdraws from slype.

Described suspension gear version is a lot, can adopt air suspension system.

In order to increase load-carrying capacity, back axle can be a plurality of, and as 2～4, trailing wheel also increases (draw back out when travelling, be generally zero load or short range is travelled, carry little or the carrying time lacks, can not set up propons and front-wheel) accordingly.

The utility model is owing to all be designed to little gooseneck structure with the vehicle frame two ends, and respectively be provided with towing pin at gosling neck place, tractor truck just can take off an end of trailer frame like this, reverse end for end the other end traction of vehicle frame again, and whole the semi-trailer direction changing that need not travel just can be realized having reversed end for end, and is particularly suitable for resembling the road conditions of this limited space system in tunnel; Between vehicle frame and forward and backward bridge, be provided with the suspension gear that can make forward and backward bridge lifting, during current line, propons risen, front-wheel is liftoff, when travelling backward, can make that back axle rises, trailing wheel is liftoff, turning to when being convenient to travel, maneuverability travels; Simultaneously can cancel hand supporting leg, reduce the height of vehicle frame, also just reduce the loading height.Therefore the utlity model has and can satisfy slype, particularly resemble travelling and reversing end for end under this special road conditions in tunnel, travel steadily, safe and reliable, characteristics such as maneuverability can increase load-carrying capacity, reduce the height of loading surface, and simple in structure, and is easy to operate.

Description of drawings

Fig. 1 is the utility model scheme drawing;

Scheme drawing when Fig. 2 is the utility model rear haulage.

The specific embodiment

Bivector traction low flat bed semi trailer of the present utility model, include vehicle frame 1, propons, front-wheel 2, back axle, trailing wheel 3, towing pin 6 and can make the suspension gear 4 of forward and backward bridge lifting, front-wheel 2 is installed on the propons, propons is arranged on the front end downside of vehicle frame 1, trailing wheel 3 is installed on the back axle, and back axle is arranged on the rear end downside of vehicle frame 1; Vehicle frame 1 rear and front end is little gooseneck structure, and its gosling neck structure place, two places is provided with towing pin 6, and tractor truck 5 can be connected with vehicle frame 1 by described arbitrary towing pin 6; Be provided with the suspension gear 4 that can make propons, back axle lifting between propons, back axle and the vehicle frame 1, suspension gear 4 is communicated with the operating control of tractor truck 1.

Described suspension gear 4 versions are a lot, and the suspension gear 4 of present embodiment adopts air suspension system.

In order to increase load-carrying capacity, back axle can be a plurality of, and the back axle of present embodiment can be 2, and trailing wheel 3 also increases accordingly.

When the needs shipping goods, goods is contained on the vehicle frame 1, vehicle frame 1 is connected with tractor truck 5 by the towing pin 6 of its front end, handle the operating control of tractor truck 5, the suspension gear 4 by being installed in the propons place rises propons, make front-wheel 2 liftoff, again by tractor truck 5 traction walkings, shipping goods.When entering slype, when needing tune to travel (after unloading, need withdraw from slype), only need to handle the operating control of tractor truck 5, suspension gear 4 by the propons place, propons is fallen, front-wheel 2 is landed, dismantle being connected of towing pin 6 of tractor truck 5 and vehicle frame 1 front end, again the towing pin 6 of tractor truck 5 by vehicle frame 1 rear end is connected with the rear end of vehicle frame 1, handle the operating control of tractor truck 5 again, the suspension gear 4 at the back axle place by vehicle frame 1 rear end rises back axle, makes trailing wheel 3 rise liftoff (as shown in Figure 2), under the traction of tractor truck 5, just can reverse end for end to travel backward, withdraw from slype.

Therefore, the utlity model has and can satisfy slype, it is this special particularly to resemble the tunnel Travelling and reversing end for end under the road conditions travelled steadily, and be safe and reliable, maneuverability, can increase bearing capacity, Reduce the height of loading surface, and simple in structure, the characteristics such as easy to operate.

Claims

1, a kind of bivector traction low flat bed semi trailer, include vehicle frame (1), propons, front-wheel (2), back axle, trailing wheel (3), towing pin (6), front-wheel (2) is installed on the propons, propons is arranged on the front end downside of vehicle frame (1), trailing wheel (3) is installed on the back axle, and back axle is arranged on the rear end downside of vehicle frame (1); It is characterized in that also including the suspension gear (4) that can make forward and backward bridge lifting; Vehicle frame (1) rear and front end is little gooseneck structure, its gosling neck structure place, two places is provided with towing pin (6), be provided with the suspension gear (4) that can make propons, back axle lifting between propons, back axle and the vehicle frame (1), suspension gear (4) is communicated with the operating control of tractor truck (1).

2, bivector traction low flat bed semi trailer according to claim 1 is characterized in that: described suspension gear (4) is an air suspension system.