CN216861080U - Novel rear three-shaft semitrailer lifting axle mechanism - Google Patents

Abstract

The utility model discloses a novel rear three-axle semitrailer lifting axle mechanism, which belongs to the technical field of mechanical manufacturing and aims to solve the problem of high oil consumption of a semitrailer in no-load; the utility model comprises a front axle, a middle axle, a rear axle, a lifting axle bracket, a U-shaped bolt, an air spring, a lifting axle base, an air suspension, a tire and a blocking nut; the lifting bridge is characterized in that the lifting bridge base is fixed on the middle bridge through the U-shaped bolt, the air spring is fixed on the lifting bridge base, the top end of the air spring is fixedly connected with the lifting bridge support, one end of the lifting bridge support is fixedly connected with the front bridge through the U-shaped bolt, and the other end of the lifting bridge support is connected with the rear bridge through the U-shaped bolt; when the semitrailer is unloaded, the air pressure in the air spring is increased, so that the air spring is extended, and the heights of the front axle and the rear axle are increased; the utility model has simple structure, smart design and low cost. The oil consumption of the semitrailer in no-load can be effectively reduced.

Description

A new rear three-axle semi-trailer lifting axle mechanism

technical field

The utility model relates to the technical field of machinery manufacturing, in particular to a novel rear three-axle semi-trailer lifting axle mechanism.

Background technique

When the semi-trailer is unloaded, the tires of the rear three axles are in contact with the ground, which results in high driving resistance, high fuel consumption, and tire wear.

SUMMARY OF THE INVENTION

In order to overcome the above technical problems, the utility model provides a novel rear three-axle semi-trailer lifting axle mechanism.

The technical scheme of the utility model is: a novel rear three-axle semi-trailer lifting axle mechanism, the utility model comprises a front axle, a middle axle, a rear axle, a lifting axle bracket, a U-bolt, an air spring, a lifting axle base, and an air suspension , tires, and blocking nuts; it is characterized in that the lifting bridge base is fixed on the middle bridge through the U-shaped bolts, the air spring is fixed on the lifting bridge base, and the top of the air spring is connected to the The lifting axle bracket is fixedly connected, one end of the lifting axle bracket is fixedly connected to the front axle through the U-shaped bolt, and the other end of the lifting axle bracket is connected to the rear axle through the U-shaped bolt; When the semi-trailer is unloaded, by increasing the air pressure in the air spring, the air spring is extended, and the length of the air spring in the air suspension on the front axle and the rear axle is shortened, so as to increase the air pressure. The height of the front axle and the rear axle.

Further, there are two guide rods on the lifting bridge base, and the air spring extends and contracts up and down along the guide rods; the top of the guide rod is provided with a blocking nut, which prevents the The air spring is overextended.

The beneficial effects of the present utility model are:

The utility model is a novel rear three-axle semi-trailer hoisting axle mechanism, which utilizes the extension and compression of the air spring to control the lifting and lowering of the hoisting axle mechanism; the utility model has the advantages of simple structure, ingenious design, low cost, and can effectively reduce Fuel consumption of a semi-trailer with no load.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the partial structure schematic diagram of the utility model;

Fig. 3 is the partial structure schematic diagram of the lifting bridge of the present utility model;

In the picture: 1-front axle; 2-air suspension; 3-tire; 4-middle axle; 5-rear axle; 6-U-bolt; 7-lifting axle bracket; 8-air spring; 9-lifting axle base ; 10 - Blocking nut.

Detailed ways

Referring to the accompanying drawings 1 to 3 of the specification, a new rear three-axle semi-trailer lifting axle mechanism of the present invention will be described in detail below.

A novel rear three-axle semi-trailer lifting axle mechanism, the utility model includes a front axle 1, a middle axle 4, a rear axle 5, a lifting axle bracket 7, a U-bolt 6, an air spring 8, a lifting axle base 9, an air suspension 2. Tire 3, blocking nut 10; it is characterized in that the lifting bridge base 9 is fixed on the middle bridge 4 through the U-bolt 6, and the air spring 8 is fixed on the lifting bridge base 9, The top end of the air spring 8 is fixedly connected to the lifting axle bracket 7 , one end of the lifting axle bracket 7 is fixedly connected to the front axle 1 through the U-bolt 6 , and the other end of the lifting axle bracket 7 is connected to the front axle 1 through the U-bolt 6 . The U-bolt 6 is connected to the rear axle 5; when the semi-trailer is unloaded, by increasing the air pressure in the air spring 8, the air spring 8 is extended, and the front axle 1 and the The length of the air spring in the air suspension 2 on the rear axle 5 increases the height of the front axle 1 and the rear axle 5 .

Further, there are two guide rods on the lifting axle base 9, and the air spring 8 extends and contracts up and down along the guide rods. The top end of the guide rod is provided with a blocking nut 10 , and the blocking nut 10 prevents the air spring 8 from being stretched excessively.

A novel rear three-axle semi-trailer lifting axle mechanism utilizes the extension and compression of the air spring to control the lifting and lowering of the lifting axle mechanism. The utility model has the advantages of simple structure, ingenious design and low cost, and can effectively reduce the fuel consumption of the semi-trailer when it is not loaded.

The above are only specific embodiments of the present invention, and changes that can be easily conceived by those skilled in the art within the scope disclosed by the present invention should be included within the protection scope of the present invention.

Claims (2)

1. A novel rear three-axle semitrailer lifting axle mechanism comprises a front axle, a middle axle, a rear axle, a lifting axle bracket, U-shaped bolts, an air spring, a lifting axle base, an air suspension and tires; the method is characterized in that: the lifting bridge base is fixed on the middle bridge through the U-shaped bolt, the air spring is fixed on the lifting bridge base, the top end of the air spring is fixedly connected with the lifting bridge support, one end of the lifting bridge support is fixedly connected with the front bridge through the U-shaped bolt, and the other end of the lifting bridge support is connected with the rear bridge through the U-shaped bolt.

2. The novel rear three-axle semitrailer lift axle mechanism of claim 1, characterized in that: two guide rods are arranged on the lifting bridge base, and the air spring extends and contracts up and down along the guide rods; and a blocking nut is arranged at the top end of the guide rod and prevents the air spring from being excessively extended.

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