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Semitrailer floating shaft suspension device

A suspension device, floating shaft technology, applied in the direction of suspension, elastic suspension, vehicle parts, etc.

Inactive Publication Date: 2011-01-19
ZHONGTONG AUTOMOBILE IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At no-load and full load, the wheels of each axle are in contact with the ground to keep the frame balanced. When the load is heavy, the force is uniform and the load is balanced. However, if the wheels of each axle are still in contact with the ground when driving without load, it will cause All the tires have rolling friction with the ground, the resistance is large, the tires wear more, and the fuel consumption rate is high

Method used

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  • Semitrailer floating shaft suspension device
  • Semitrailer floating shaft suspension device
  • Semitrailer floating shaft suspension device

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Embodiment Construction

[0017] refer to image 3 , the upper end of two sets of airbags 4 symmetrically arranged is fixedly connected to the frame crossbeam 3, the lower end is connected to the front axle 12, the middle bracket 6 is fixed on both sides of the vehicle frame 2, and two sets of front leaf springs 13 are installed on both ends of the front axle 12 respectively .

[0018] refer to Figure 4 , the connection structure between the front bracket 1 and the front leaf spring 13 in the no-load state, the front bracket 1 is provided with a vertical adjustment slot T, and the leaf spring pin 15 at the front end of the front leaf spring 13 can be fitted up and down in the adjustment slot T Move, offer a dowel hole D next to the lower section of the adjustment slot T, which can be fitted with the dowel 14. Under the heavy load state of the semi-trailer, the vehicle frame 2 sinks under pressure, driving the front bracket 1 to descend, and the front leaf spring 13 front end leaf spring pin 15 is lo...

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Abstract

The invention relates to a semitrailer floating shaft suspension device, wherein a pair of vertical gasbags (4) are symmetrically arranged between a frame cross (3) and a front axle (12), a front support (1) is provided with a vertical adjustment slot (T) and a location pinhole (D) is arranged beside the vertical adjustment slot (T); the tops of the gasbags are fixedly connected with the frame cross (3), the bottom is moveably connected with the front axle (12). In unloaded state, the gasbags (4) is filled with gas to lift a frame (2), the front axle (12) is pressed to deflect forward, a backshaft (10) and back wheels (9) are forced to rise and leave the ground, a front-end plate spring pin (15) of a front plate spring (13) falls to the bottom in the adjustment slot (T) of the front support (1). A location pin (14) is inserted in the location pinhole (D) to press the front end of the front plate spring (13), a balancing pin (16) is inserted in a balancing pinhole (P) on a middle support (6) to support a balancing support (5), then the gas in the gasbags (4) is discharged to maintain the suspending state of the back wheels (9). In a car is in movement status, the back wheels can not suffer frictional wear so as to prolong the service life, reduce the unloaded resistance, lower the oil consumption and reduce the pollution.

Description

technical field [0001] The invention relates to an automobile semi-trailer, in particular to a suspension device of the semi-trailer. Background technique [0002] As a kind of mobile carrier, semi-trailer is widely used, especially suitable for transporting large components. Two-axle and three-axle semi-trailer are commonly used. The suspension system usually uses leaf springs in series, and the middle part is fixed on the axle by U-shaped bolts. The end is erected on the leaf spring bracket at the bottom of the frame, balanced and suspended on the inner side of the wheel, and symmetrically arranged on both sides. This structural form is a fixed structure. At no-load and full load, the wheels of each axle are in contact with the ground to keep the frame balanced. When the load is heavy, the force is uniform and the load is balanced. However, if the wheels of each axle are still in contact with the ground when driving without load, it will cause All the tires have rolling...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G11/46
Inventor 颜承敏刘英孙治本肖际生宁东兴王月岭洪岩
Owner ZHONGTONG AUTOMOBILE IND GROUP
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