CN201235860Y

CN201235860Y - Roll-over type elastic support of automobile driver's cabin

Info

Publication number: CN201235860Y
Application number: CNU2008200138420U
Authority: CN
Inventors: 张锡澄
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-03
Filing date: 2008-07-03
Publication date: 2009-05-13
Anticipated expiration: 2018-07-03

Abstract

The utility model relates to a tipping elastic bracket of an automobile cab, belonging to the technical field of automobile fittings. Two upper supporting rods are arranged at the lower part of the tipping elastic bracket of an automobile cab by adopting a torsion rod spring power mechanism, the upper ends of the upper supporting rods are articulated with the automobile cab, the lower ends of the upper supporting rods are respectively articulated with the upper ends of the two lower supporting rods, the lower ends of the lower supporting rods are articulated with an automotive frame, and a spring is arranged between the upper ends of the two lower supporting rods. The tipping elastic bracket of an automobile cab basically realizes the theoretical property of the self tipping torque curve of the cab with the action of the torsion rod spring power mechanism. When a vehicle is maintained and repaired, the automobile cab is lifted or falls dropped more easily and accurately. The tipping elastic bracket of an automobile cab well solves the problems of the prior large-sized truck that the cab is lifted heavily and can not fall down to the predetermined position.

Description

The turnable cabin of car elastic support

Technical field

The utility model relates to a kind of turnable cabin of car elastic support that belongs to the vehicular spare parts technical field.

Background technology

Existing turnable cabin of car adopts the torsion bar spring servomechanism more, utilizes torsion bar spring to do energy-accumulating element, and the potential energy when operator's compartment is fallen stores.Spring releases energy and produces a torque that makes progress when lifting the operator's compartment maintenance activity, alleviates the thrust of manually lifting operator's compartment.Exist operator's compartment to lift heavy (the automobile more than 3 years of travelling a, people can not lift operator's compartment during maintenance) but existing torsion bar spring servomechanism is common, and be difficult to fall the problem of position when falling.Its reason is that torsion bar spring servomechanism moment of torsion and angle relation characteristic are straight lines, and operator's compartment is a curve by the torque characteristics that self overturns that deadweight produces, when making operator's compartment at level attitude and near level attitude, the torsion bar spring moment of torsion is greater than operator's compartment self upset torque, and other most positions torsion bar spring moment of torsion changes short less than operator's compartment self upset, therefore produced the problems referred to above, this is that existing torsion bar spring servomechanism is insurmountable.

Summary of the invention

The purpose of this utility model provides a kind of lifting or falls the light turnable cabin of car accurately of operator's compartment elastic support for solving disadvantages of background technology exactly.

The purpose of this utility model is achieved in that and is provided with two upper rack posts in the bottom of automobile cab, the upper rack posts upper end is hinged with automobile cab, the upper rack posts lower end is hinged with two lower fulcrum bar upper ends that are provided with respectively, lower fulcrum bar lower end and automotive frame are hinged, are provided with extension spring between two lower fulcrum bar upper ends.

The utility model is compared background technology and is had following advantage: 1. simple in structure, be convenient to automobile repacking; 2. installation of the present utility model makes its torque characteristic curve near operator's compartment self upset torque characteristic curve, lifts or to fall operator's compartment lighter.

Description of drawings

Fig. 1 is the utility model structure principle chart.

Fig. 2 is another structure principle chart of the utility model.

Fig. 3 is the utility model mechanics principle corner torque curve.

The specific embodiment

The utility model is further described by embodiment below in conjunction with accompanying drawing: as shown in Figure 1, existing automobile cab 2 adds torsion bar spring servomechanism 3 with automotive frame 1, the utility model is installed in the outside of automobile cab 2 bottoms, upper rack posts 6 is hinged with lower fulcrum bar 4, their two ends are hinged with automobile cab 2 and automotive frame 1 respectively, are provided with extension spring 5 between two lower fulcrum bars 4.As shown in Figure 3, curve a is a torsion bar spring servomechanism torque characteristic curve among the figure, curve b is operator's compartment self a upset torque characteristic curve, and curve c is the utility model torque characteristic curve, and curve d is the new servomechanism torque characteristic curve in the synthetic back of curve a and curve c.As can be seen from the figure, after the utility model installs additional, realized theoretic curve b characteristic substantially with the combined action of original torsion bar spring servomechanism, the maintainer is lighter accurate when lifting or fall automobile cab 2 like this.

Claims

1, a kind of turnable cabin of car elastic support, it is characterized in that being provided with two upper rack posts in the bottom of automobile cab, the upper rack posts upper end is hinged with automobile cab, the upper rack posts lower end is hinged with two lower fulcrum bar upper ends that are provided with respectively, lower fulcrum bar lower end and automotive frame are hinged, are provided with extension spring between two lower fulcrum bar upper ends.