Novel integrated type refrigeration semitrailer

Abstract

The invention provides a novel integrated type refrigeration semitrailer. A traction disc is integrally arranged on a framework vehicle; a connecting structure is arranged between the framework vehicle and a refrigeration semitrailer carriage body; the connecting structure comprises a center connecting structure, side edge connecting structures and a rear end connecting structure. The semitrailerfurther comprises a wind resistance reducing structure; the wind resistance reducing structure comprises large-arc wrap-angle type profiles arranged at the corners of two sides of the front part of the refrigeration carriage body and arc-shaped profiles arranged on two sides of the front end of the traction disc; the semitrailer is divided into an upper-mounted module refrigeration carriage body and a lower-mounted module straight beam framework vehicle through modular design; and the upper part and the lower part are assembled together through fasteners to form the integral semitrailer. A framework vehicle penetrating beam is used for floor bearing, a cross beam is manufactured on the framework vehicle, the form of the penetrating beam is adopted, the upper plane of the penetrating beam is flush with the plane of the framework vehicle, the bearing surface height is reduced, height limit values are the same, the carriage height is increased, and the internal volume is increased.

Description

technical field [0001] The invention relates to the field of transportation equipment, in particular to a novel integrated refrigerated semi-trailer. Background technique [0002] A semi-trailer is a trailer whose axle is placed behind the vehicle's center of gravity (when the vehicle is evenly loaded) and is fitted with hitches that transmit horizontal and vertical forces to the tractor. The integrated refrigerated semi-trailer in the prior art often has the following defects: [0003] (1) The current integrated refrigerated semi-trailer mostly adopts the method of split compartment (also known as the top of the semi-trailer) and the skeleton vehicle (also known as the bottom of the semi-trailer). connect. This kind of structure is actually not a one-piece refrigerated semi-trailer in the true sense. Its connection performance and load-carrying performance are often not very good, and its connection is not reliable. Gaps, poor connection performance. Moreover, due to st...

AI Technical Summary

Problems solved by technology

This kind of structure is actually not a one-piece refrigerated semi-trailer in the true sense. Its connection performance and load-carrying performance are often not very good, and its connection is not reliable. Gaps, poor connection performance

Moreover, due to structural reasons, it is easy to be damaged and has a short service life. In actual use, the car body and the frame car will shake due to transportation, which will bring impact and wear, and the welding between the car body and the frame car will be affected. Welding failure will occur, and the bolt connection between the box body and the frame car will cause bolt failure, which will cause damage to the box body and reduce the service life

[0004] (2) The traction disc of the current semi-trailer is fixed to the beam of the semi-trailer and is fixedly connected to the tractor through the traction pin, and the conventional traction disc is only concentrated between the frame beams

Its load-bearing capacity is not good, and the connection with the car body is not high; the traction plate is equipped with a traction pin at the bottom, and the tractor is connected with the traction pin at the bottom of the semi-trailer. Scratch damage to the bottom of the traction disc, the durability of the traction disc is often not good; because the traction pin is in the process of use, when it is pulled by the tractor, the direction of the traction force is the forward direction of the semi-trailer, and the traction pin is prone to deformation during long-term use , desoldering or even failure, causing danger

[0005] (3) At present, the skeleton vehicle of the refrigerated semi-trailer (also known as the bottom of the semi-trailer), its main body is composed of a skeleton vehicle girder connected with a traction disc. Due to the simple structure of the bottom, the bearing capacity is not good. Once the transportation capacity increases, it will It will cause excessive pressure on the frame frame of the car, which is easy to damage the frame frame of the car, and the safety cannot be guaranteed, so it is not suitable for large-capacity refrigerated transportation

And because the opening and closing door of the refrigerated semi-trailer body (also known as the semi-trailer top) is set in the middle of the refrigerated semi-trailer, frequent loading and unloading and manual handling, the middle part of the skeleton vehicle often supports the bearing pressure brought by loading and unloading for a long time. There has been no targeted reinforcement structure to strengthen it, so it is prone to damage

[0006] (4) Due to the high freight weight of the refrigerated semi-trailer, usually a 40-ton refrigerated semi-trailer is heavy during transportation and suffers a lot of wind resistance when driving. The current refrigerated semi-trailer does not have a specially developed structure for reducing wind resistance. Conducive to the use of refrigerated semi-trailers

Images