CN203888564U - Air bag vibration damping device of rear overhang of heavy type lorry cab - Google Patents

Air bag vibration damping device of rear overhang of heavy type lorry cab Download PDF

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Publication number
CN203888564U
CN203888564U CN201420180710.2U CN201420180710U CN203888564U CN 203888564 U CN203888564 U CN 203888564U CN 201420180710 U CN201420180710 U CN 201420180710U CN 203888564 U CN203888564 U CN 203888564U
Authority
CN
China
Prior art keywords
overhang
cab
shock absorber
hydraulic lock
air bag
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420180710.2U
Other languages
Chinese (zh)
Inventor
信思勇
曹东海
李鑫
崔志军
常勇
李正鲁
李庆榜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SINOTRUK GROUP JINING COMMERCIAL VEHICAL CO Ltd
China National Heavy Duty Truck Group Taian Wuyue Special Vehicle Co Ltd
Original Assignee
SINOTRUK GROUP JINING COMMERCIAL VEHICAL CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SINOTRUK GROUP JINING COMMERCIAL VEHICAL CO Ltd filed Critical SINOTRUK GROUP JINING COMMERCIAL VEHICAL CO Ltd
Priority to CN201420180710.2U priority Critical patent/CN203888564U/en
Application granted granted Critical
Publication of CN203888564U publication Critical patent/CN203888564U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides an air bag vibration damping device of a rear overhang of a heavy type lorry cab. The vibration damping device comprises an air bag vibration damper with a height control valve. The upper part of the air bag vibration damper is connected with a hydraulic lock. The hydraulic lock is fixed on a cab floor longitudinal beam via an upper locking support. The lower part of the air bag vibration damper is connected with the vehicle frame via a rear overhang support assembly. The hydraulic lock is connected with a transverse stabilization vibration damper. The transverse stabilization vibration damper is connected with the rear overhang support assembly. One end of the height control valve is fixed on the rear overhang support assembly, and the other end is fixed on an installing support via an adjusting push rod. The installing support is fixed on the hydraulic lock. According to the utility model, requirements for connecting the cab and the vehicle frame can be satisfied; amplitude caused by bumping of the cab is reduced; stability of a rear overhang system is greatly improved; and comfort level and safety of driving are increased.

Description

A kind of cab of heavy truck rear overhang air bag shock attenuation unit
Technical field
The utility model relates to a kind of rear overhang air bag shock attenuation unit for cab of heavy truck.
Background technology
In the prior art, known technology is that heavy duty truck is widely used in carrier, has become the key factor that driver and crew consider occupant's traveling comfort, properties of product and service life.Traditional steering room back suspension adopts spring damping, rear overhang two side stand absolute construction, but jounce bumper is in effectiveness in vibration suppression and not ideal enough on service life, and independently steering room back suspension support can not ensure the stability of rear overhang system., this is the existing weak point of prior art.
Summary of the invention
The purpose of this utility model, be exactly for the existing deficiency of prior art, and provide a kind of technical scheme of cab of heavy truck rear overhang air bag shock attenuation unit, the shock attenuation unit of this scheme has adopted air-bag shock absorber, because air-bag shock absorber does not have static shift, by height-control valve, can make the operating altitude of air-bag shock absorber under any load, keep necessarily, also can making air-bag shock absorber under same load, there is different height; And vibration isolating effect and magnitude of load are substantially irrelevant, can not change in any load lower gasbag shock absorber natural frequency of vibration, thereby air-bag shock absorber has metastable performance.Use this device not only can meet the connection request of operator's compartment and vehicle frame, dwindle operator's compartment the jolt amplitude causing and the stability that greatly improves rear overhang system, can also improve traveling comfort and the safety of driving.
This programme is achieved by the following technical measures: a kind of cab of heavy truck rear overhang air bag shock attenuation unit, comprise the air-bag shock absorber with height-control valve, the feature of this programme is: the top of air-bag shock absorber is connected with hydraulic lock, and hydraulic lock is fixed on cab floor longeron by upper locking support; The bottom of air-bag shock absorber is connected with vehicle frame by rear suspension rack assembly, described hydraulic lock is connected with lateral stabilizer shock absorber, lateral stabilizer shock absorber is connected with rear suspension rack assembly, described height-control valve one end is fixed on rear suspension rack assembly, the other end of height-control valve is fixed on mounting bracket by regulating pushing rod, and mounting bracket is fixed in hydraulic lock.
Described hydraulic lock engages with upper locking support.
The bottom of air-bag shock absorber is connected with the bottom of rear suspension rack assembly.
Lateral stabilizer shock absorber is connected with the top of rear suspension rack assembly.
The top of rear suspension rack assembly is connected with rear overhang crossbeam.
Described regulating pushing rod is L shaped.
The beneficial effect of this programme can be learnt according to the narration to such scheme, owing to adopting air-bag shock absorber can reduce fatigue damage, improve the service life of shock absorber in this scheme, and makes operator's compartment have good ride comfort and stability; Hydraulic lock is fixed on cab floor longeron by upper locking support, and hydraulic lock just can be moved with operator's compartment like this; Height-control valve is fixed on mounting bracket by regulating pushing rod, and mounting bracket is fixed in hydraulic lock, when hydraulic lock motion, just can drive regulating pushing rod motion, and then control height-control valve, realize inflation and the exhaust of air-bag shock absorber, realize the buffering to operator's compartment; Regulating pushing rod is L shaped, is more conducive to like this adapt to installing and using of air-bag shock absorber; Described hydraulic lock engages with upper locking support, in operator's compartment up-and-down movement process, hydraulic lock is tight upper locking bracket lock, has ensured being connected of operator's compartment and rear-suspending; Hydraulic lock is connected with lateral stabilizer shock absorber, lateral stabilizer shock absorber is connected with rear suspension rack assembly, in the time of the horizontal roll motion of operator's compartment, the larger dumping force of the stressed flexible generation of lateral stabilizer shock absorber, thereby consume transverse energy, make to vibrate rapid decay, realize operator's compartment lateral stability.As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model detailed description of the invention.
In figure, 1 is upper locking support, and 2 is hydraulic lock, and 3 is lateral stabilizer shock absorber, and 4 is mounting bracket, and 5 is regulating pushing rod, and 6 is air-bag shock absorber, and 7 is height-control valve, and 8 is rear suspension rack assembly, and 9 is vehicle frame, and 10 is cab floor longeron, and 11 is rear overhang crossbeam.
Detailed description of the invention
For clearly demonstrating the technical characterstic of this programme, below by a detailed description of the invention, and in conjunction with its accompanying drawing, this programme is set forth.
Can find out by accompanying drawing, a kind of cab of heavy truck rear overhang air bag shock attenuation unit of this programme, comprise the air-bag shock absorber 6 with height-control valve 7, the top of air-bag shock absorber 6 is connected with hydraulic lock 2, and hydraulic lock 2 is fixed on cab floor longeron 10 by upper locking support 1; Described hydraulic lock engages with upper locking support.The bottom of air-bag shock absorber 6 is connected with vehicle frame 9 by rear suspension rack assembly 8, described hydraulic lock 2 is connected with lateral stabilizer shock absorber 3, lateral stabilizer shock absorber 3 is connected with rear suspension rack assembly 8, described height-control valve 7 one end are fixed on rear suspension rack assembly 8, the other end of height-control valve 7 is fixed on mounting bracket 4 by regulating pushing rod 5, described regulating pushing rod is L shaped, and mounting bracket 4 is fixed in hydraulic lock 2.
The bottom of air-bag shock absorber 6 is connected with the bottom of rear suspension rack assembly 8.Lateral stabilizer shock absorber 3 is connected with the top of rear suspension rack 8 assemblies.The top of rear suspension rack assembly 8 is connected with rear overhang crossbeam 11.
In Vehicle Driving Cycle, because driving the mounting bracket 4 being assemblied in hydraulic lock 2, car chassis balleting handles height-control valve 7 by regulating pushing rod 5, because the action of height-control valve 7 regulates the exhaust of filling of air-bag shock absorber 6, thereby reduce the amplitude up and down of operator's compartment in driving; In operator's compartment jolts process, hydraulic lock 2 drives lateral stabilizer shock absorber 3 to move, and by stretching of lateral damper 3, reduces the teeter amplitude of operator's compartment in driving.By the combined action of air-bag shock absorber 6, lateral stabilizer shock absorber 3, alleviate the impact of ground in the face of operator's compartment.
In the time of relative vehicle frame 9 upward movement of operator's compartment, mounting bracket 4 in hydraulic lock 2 drives regulating pushing rod 5 upward movements, cause height-control valve 7 upwards to rotate, air-bag shock absorber 6 is Exhaust Gas in the time that height-control valve 7 upwards rotates, air-bag shock absorber 6 shortens, operator's compartment is subject to downward application force, makes to vibrate rapid decay, reduces upward movement stroke, and operator's compartment upward movement is releived;
In the time of the relative vehicle frame 9 downward return of operator's compartment, mounting bracket 4 in hydraulic lock 2 drives regulating pushing rod 5 to move downward, cause height-control valve 7 to rotate, air-bag shock absorber 6 is filled with gas in the time that height-control valve 7 rotates, operator's compartment is subject to application force upwards, make to vibrate rapid decay, reduce to move downward stroke, operator's compartment moves downward releives.In operator's compartment up-and-down movement process, hydraulic lock 2 is locked locking support 1 on rear overhang, has ensured being connected of operator's compartment and rear-suspending.In the time of the horizontal roll motion of operator's compartment, the larger dumping force of the stressed flexible generation of lateral stabilizer shock absorber 3, thus consume transverse energy, make to vibrate rapid decay, realize operator's compartment lateral stability.

Claims (6)

1. a cab of heavy truck rear overhang air bag shock attenuation unit, comprises the air-bag shock absorber with height-control valve, it is characterized in that: the top of air-bag shock absorber is by being connected with hydraulic lock, and hydraulic lock is fixed on cab floor longeron by upper locking support; The bottom of air-bag shock absorber is connected with vehicle frame by rear suspension rack assembly, described hydraulic lock is connected with lateral stabilizer shock absorber, lateral stabilizer shock absorber is connected with rear suspension rack assembly, described height-control valve one end is fixed on rear suspension rack assembly, the other end of height-control valve is fixed on mounting bracket by regulating pushing rod, and mounting bracket is fixed in hydraulic lock.
2. cab of heavy truck rear overhang air bag shock attenuation unit according to claim 1, is characterized in that: described hydraulic lock engages with upper locking support.
3. cab of heavy truck rear overhang air bag shock attenuation unit according to claim 1, is characterized in that: the bottom of air-bag shock absorber is connected with the bottom of rear suspension rack assembly.
4. cab of heavy truck rear overhang air bag shock attenuation unit according to claim 3, is characterized in that: lateral stabilizer shock absorber is connected with the top of rear suspension rack assembly.
5. according to the cab of heavy truck rear overhang air bag shock attenuation unit described in claim 1 or 3 or 4, it is characterized in that: the top of rear suspension rack assembly is connected with rear overhang crossbeam.
6. cab of heavy truck rear overhang air bag shock attenuation unit according to claim 1, is characterized in that: described regulating pushing rod is L shaped.
CN201420180710.2U 2014-04-15 2014-04-15 Air bag vibration damping device of rear overhang of heavy type lorry cab Expired - Fee Related CN203888564U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420180710.2U CN203888564U (en) 2014-04-15 2014-04-15 Air bag vibration damping device of rear overhang of heavy type lorry cab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420180710.2U CN203888564U (en) 2014-04-15 2014-04-15 Air bag vibration damping device of rear overhang of heavy type lorry cab

Publications (1)

Publication Number Publication Date
CN203888564U true CN203888564U (en) 2014-10-22

Family

ID=51715009

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420180710.2U Expired - Fee Related CN203888564U (en) 2014-04-15 2014-04-15 Air bag vibration damping device of rear overhang of heavy type lorry cab

Country Status (1)

Country Link
CN (1) CN203888564U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141022

Termination date: 20190415