CN2623486Y

CN2623486Y - Air suspension elevating mechanism for automobile

Info

Publication number: CN2623486Y
Application number: CN 03216702
Authority: CN
Inventors: 方修君; 李永纲; 王建青
Original assignee: FANGZHENG MACHINERY CO LTD QINGDAO
Current assignee: FANGZHENG MACHINERY CO LTD QINGDAO
Priority date: 2003-04-22
Filing date: 2003-04-22
Publication date: 2004-07-07
Anticipated expiration: 2013-04-22

Abstract

The utility model discloses an air suspension elevating mechanism for automobile, wherein a vehicle-bridge fixing frame is arranged at the lower of vertical disc of vehicle chassis, the lower parts of the two ends are fixed with relative lifting brackets, the lower part of which is provided with a pivot while the upper part is a lifting arm, the lifting arm assembly with a draw-arm at lower part is arranged on the pivot, one end of a lifting air-bag is arranged on the lifting air-bag seat while the other end is fixed on the lifting bracket, the draw-arm end is arranged on the vehicle-bridge fixing frame, the upper end of a supporting air-bag is connected with the vehicle-bridge fixing frame while the lower end is arranged on the supporting air-bag seat; the supporting air-bag and the lifting air-bag are respectively communicated with a gas storage cylinder via a pressure regulating valve and a control valve. When an adding wheel is required to lift, the control valve is operated to release the support air-bag and inflate the lifting air-bag, so the wheel is driven to lift; when overloading is operated, the control valve is operated to release the lifting air-bag and inflate the support air-bag, so the lifting arm assembly is rotated, and the wheel is released, therefore not only the problem of vehicle overload can be solved, but also the resistance of motion and the abrasion of tyres can be reduced when no-load or light load.

Description

Vehicle air hangs lift system

Technical field

The utility model belongs to Transport Machinery, the carrying vehicle bridge that specifically installs additional under the car chassis longeron and the lift system of wheel.

Background technology

Load problem for solving autotruck, generally will install load-bearing vehicle bridge and a pair of wheel additional, but when vehicle zero load or underloading, can increase resistance of motion and to the wearing and tearing of increase wheel tyre because of many a pair of wheels in its bottom, chassis than heavy articles.

The utility model content

Want to make the load-bearing vehicle bridge that installs additional and a pair of wheel when vehicle zero load or underloading, do not increase the resistance of motion of vehicle and externally add the wheel Tyte Wear, the technical solution of the utility model is: the axle attachment frame is installed below the vehicle chassis longeron, be fixed with relative lifting support respectively in its bottom, two ends, fulcrum is arranged at the bottom of support, the lift arm assembly is housed on the fulcrum, this assembly top is lift arm, the bottom is torque arm, promoting air bag one end is installed on the lifting gasbag seat on lift arm top, the other end is fixed on and promotes on the support, the arm end bearing of torque arm is on the axle attachment frame, the upper end of carrying air bag is connected with the axle attachment frame, and the lower end is sitting on the carrying gasbag seat on the vehicle bridge; Air tank is communicated with carrying air bag and lifting air bag respectively through pressure regulating valve, control cock.

When a pair of wheel that installs additional need promote, the gas of air tank is set up through pressure regulating valve, handle control cock, in the carrying air bag deflation, to promoting airbag aeration, promote air bag and promote lift arm, the lift arm assembly is rotated around fulcrum, drive with torque arm end bonded assembly axle attachment frame on move, thereby drive vehicle bridge below it, drive wheel by vehicle bridge and promote; When the vehicle heavy service, handle control cock and make the lifting air bag deflation, simultaneously to the carrying airbag aeration, carrying air bag pushing torque arm this moment rotates around fulcrum, lift arm end is lifted simultaneously, can finish the function of putting down bearing wheed, like this, both solved the problem of load-carrying vehicle overload, reduced its resistance of motion when having reached vehicle zero load or underloading again and the Tyte Wear problem.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a partial front elevation view of the present utility model;

Fig. 2 is half the view of right elevation of Fig. 1;

Fig. 3 is the front view of lift arm assembly among Fig. 2;

Fig. 4 is the birds-eye view of Fig. 3;

Fig. 5 is the A-A section 90 degree revolved views of Fig. 4;

Fig. 6 is a gas circuit scheme drawing of the present utility model.

The specific embodiment

Among Fig. 1, axle attachment frame 4 is installed below vehicle chassis longeron 13, be fixed with relative lifting support 12 respectively in its bottom, two ends, in the lower support hole 3.4 of support fulcrum 1 is installed, lift arm assembly 3 is (referring to Fig. 3, support holes 3.4 Fig. 4) is contained on the fulcrum 1, lift arm assembly 3 tops are lift arm 3.1, the bottom is torque arm 3.2, an end that promotes air bag 2 is installed on the capsule seat 3.3 on lift arm 3.1 tops, the other end is fixed on and promotes on the support 12, the arm end bearing of torque arm 3.2 is on the axle attachment frame 8 of carrying air bag 6 bottoms, the upper end of carrying air bag 6 is connected with axle attachment frame 4, and the lower end is sitting on the carrying gasbag seat 11 on the vehicle bridge 9 (referring to Fig. 2).

Cause problems such as distortion to vehicle, vibration for solving in the vehicle operating, in the torque arm stomidium 3.5 in support holes 3.4 and torque arm 3.2, be separately installed with the resilient sleeve 3.6,3.7 (referring to Fig. 4, Fig. 5) of polyurethane material because of the impact that is subjected to road.

Among Fig. 6, air tank 14 is communicated with carrying air bag 6 and lifting air bag 2 respectively after pressure regulating valve 15, control cock 16.

Claims

1, a kind of vehicle air hangs lift system, it is characterized in that: axle attachment frame (4) is installed below vehicle chassis longeron (13), be fixed with relative lifting support (12) respectively in its bottom, two ends, fulcrum (1) is arranged at the bottom of support, lift arm assembly (3) is housed on the fulcrum (1), this assembly top is lift arm (3.1), the bottom is torque arm (3.2), promoting air bag (2) one ends is installed on the lifting gasbag seat (3.3) on lift arm (3.1) top, the other end is fixed on and promotes on the support (12), the arm end bearing of torque arm (3.2) is on axle attachment frame (8), the upper end of carrying air bag (6) is connected with axle attachment frame (4), and the lower end is sitting on the carrying gasbag seat (11) on the vehicle bridge (9); Air tank (14) is communicated with carrying air bag (6) and lifting air bag (2) respectively through pressure regulating valve (15), control cock (16).

2, vehicle air as claimed in claim 1 hangs lift system, it is characterized in that: in the support holes (3.4) and torque arm stomidium (3.5) of torque arm (3.2), be separately installed with resilient sleeve (3.6) and (3.7).