CN205553846U - A air suspension system that is used for 2nd steering axle gasbag of commercial car to promote - Google Patents

A air suspension system that is used for 2nd steering axle gasbag of commercial car to promote Download PDF

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Publication number
CN205553846U
CN205553846U CN201620258306.1U CN201620258306U CN205553846U CN 205553846 U CN205553846 U CN 205553846U CN 201620258306 U CN201620258306 U CN 201620258306U CN 205553846 U CN205553846 U CN 205553846U
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China
Prior art keywords
air bag
leaf spring
gasbag
support
lift arm
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CN201620258306.1U
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Chinese (zh)
Inventor
宋显义
燕飞
于远超
代飞
吴永霞
梁伟
张玉航
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HUBEI TRI-RING SPECIAL TRUCK Co Ltd
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HUBEI TRI-RING SPECIAL TRUCK Co Ltd
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Abstract

The utility model provides an air suspension system that is used for 2nd steering axle gasbag of commercial car to promote, including the same hoist mechanism of two nested structures, two sets of hoist mechanism symmetrical arrangement, hoist mechanism is including being used for for the second axle provides the leaf spring that draws that draws with the guide effect, and the front end that draws the leaf spring draws the rear end of leaf spring and is connected with the second axle through drawing support and connected to the frame, draw the leaf spring in the middle of the cover have the promotion support, be equipped with the clamp plate on drawing the leaf spring, the gasbag is born the weight of in the support on the clamp plate, bears the weight of and is equipped with the gasbag support on the gasbag, gasbag support inboard and connected to the frame, gasbag support upper end is equipped with the promotion gasbag, promotes the gasbag upper end and is equipped with the lift arm, the lift arm front end is equipped with the hoist cable, the hoist cable lower extreme with promote the leg joint, the lift arm rear end articulates at gasbag support rear side. The above -mentioned structural design of the all mistakes of this department has effectively overcome the prior art bottleneck.

Description

A kind of airsuspension system for commercial car the second steeraxle airbag lift
Technical field
This utility model relates to automobile steering system technical field, particularly relates to a kind of airsuspension system for commercial car the second steeraxle airbag lift.
Background technology
During commercial car operation cargo dead-weight is checked by national legislation at present, mainly checking overload and transfinite, commercial car is demarcated load and is generally determined with the carrying number of axle, and multiaxle trucks can carry more goods, is conducive to improving efficiency of operation.Same multiaxle trucks 6 × 2 drive form, higher than 6 × 4 drive form economy, because the number of axle is identical, but the lower deadweight of cost is lighter, can fill more goods in the case of same mark carries.Therefore double-front axle vehicle is more common of is applied to long-distance transport.There is certain defect in double-front axle vehicle, the second bridge when heavy duty is must be obligato in transit, but when zero load or underloading, the second bridge role is the most little, and can produce extra running resistance and steering drag, will increase extra oil consumption;Contacting with ground for a long time because of two bridge tires simultaneously, the most especially turn in way, the abrasion of tire is inevitable, and the renewal cost of tire wear is also a part for operation costs.
In recent years, domestic Ge great main engine plants all started to research and develop the second steeraxle zero load lift technique.Present stage mainly researches and develops route two kinds: a kind of scheme is hydraulic pressure lift, it is bigger that the advantage of this scheme is an up power, mechanism takes up space less, shortcoming is also apparent from, need to provide extra hydraulic power, cannot realize handover operation under misfiring condition, structure complex fault rate is high, therefore almost without being applied in actual production.First scheme is airbag lift, and the advantage of this kind of scheme is that power source is simple, uses pressure-air to promote, commercial car is all used to air-pressure brake, it is not necessary to additionally increase power source, and this scheme is easy and simple to handle, reliability is high, and it is bigger that shortcoming is that mechanism takes up space, it is difficult to reasonable Arrangement structure.
Current domestic each main engine plants are substantially all selection first scheme and research and develop.Existing airbag lift bridge technology mainly has two kinds of routes: one is to carry with leaf spring for suspension;The shortcoming of this kind of route is that steel plate suspension rate can not be excessive, and otherwise the lifting force of air bag can not effectively overcome suspension resistance to promote, and therefore, this vehicle two bridge bearing capacitys under case of heavy load are very poor.Two is to carry as compound suspension frame carrying air bag and leaf spring, and this kind of route shortcoming is an up air bag and suspension resistance need to be overcome equally to promote, but compares the first route bearing capacity and get a promotion.But process actually used for vehicle is the most defective, it is simply that two bridge hoisting depths are inadequate, promoting air bag and be only 60mm by platform floor limitation in height lifting maximum height, when crossing bumpy road surface, two bridges are easily by ground shock, damage tire and wheel hub.
Summary of the invention
For overcoming the defect of prior art, the utility model proposes a kind of airsuspension system for commercial car the second steeraxle airbag lift.
For this, the technical solution of the utility model is: a kind of airsuspension system for commercial car the second steeraxle airbag lift, including the hoisting mechanism that two nested structures are identical, two set hoisting mechanisms are arranged symmetrically with, it is characterized in that: described hoisting mechanism includes the traction leaf spring for providing traction and guide effect for the second vehicle bridge, the front end of traction leaf spring is connected with vehicle frame by towing bracket, the rear end of traction leaf spring is connected with the second vehicle bridge, traction leaf spring intermediate sleeve has lifting bracket, traction leaf spring upper end is provided with pressing plate, support on pressing plate and have carrying air bag, carrying air bag upper end is provided with air bag support;Being connected with vehicle frame inside air bag support, air bag support upper end is provided with lifting air bag, promotes air bag upper end and is provided with lift arm, and lift arm front end is provided with hoist cable, and hoist cable lower end is connected with described lifting bracket, and lift arm rear end is hinged on rear side of air bag support.
Operation principle:
During use, two set hoisting mechanisms are symmetrically arranged in vehicle frame both sides;Lift arm uses radial type be arranged on rear side of air bag support, can rotate around pin joint;Being arranged in the middle part of lift arm by lifting air bag, its upper and lower two installed surfaces are connected with lift arm and air bag support respectively;Lift arm plays scale-up version leverage effect, and active force is provided by air bag, and load puts on hoist point position (hoist cable and lift arm junction), vehicle bridge deadweight apply.Air bag has venting and inflation two states, the air bag deflation when the second vehicle bridge needs carrying, the airbag aeration when the second vehicle bridge needs to promote, make lift arm rotate by air bag height change, drive the elevated height of hoist point, by hoist cable, the second vehicle bridge is lifted away from ground and realizes enhanced feature.
In whole work process, promote air bag and carrying air bag can switch mutually;During lifting, promote airbag aeration carrying air bag deflation, lift arm drives hoist cable to be lifted up, hoist cable pulls lifting bracket to drive traction leaf spring and the second vehicle bridge to promote, the effect of towing bracket is that the second vehicle bridge rises traction and guide effect when carrying, traction leaf spring does not play carrying effect, and carrying air bag, traction leaf spring, the second vehicle bridge are connected into entirety, and transmitted to vehicle frame to air bag support to carrying air bag from the second vehicle bridge by bearing capacity when carrying by pressing plate;During carrying, promoting air bag deflation carrying airbag aeration, the two remotely operates realization switching by ecp.
Beneficial effect:
The air suspension structure that this utility model adds carrying air bag by using traction leaf spring replaces original steel plate suspension, makes space arrange more reasonable, traction, guide function is separated with bearing function, efficiently solve the difficult problem overcoming suspension proper drag;Lift arm is set to radial type structure, utilizes leverage principle to amplify lift stroke;Two set hoisting mechanisms use simultaneously, use both arms Synchronous lifting to overcome monosaccate and promote the defect of easy sideslip.This system is designed by said structure, effectively overcomes the bottleneck of prior art so that the hoisting depth of the second steeraxle reaches 150mm, and suspension bearing capacity, up to 13 tons, complies fully with expected design and user's request.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is electric control schematic diagram of the present utility model;
Fig. 3 is schematic diagram of gas circuit of the present utility model.
Figure is numbered: 1, vehicle frame;2, traction leaf spring;3, towing bracket;4, lifting bracket;5, pressing plate;6, carrying air bag;7, air bag support;8, air bag is promoted;9, lift arm;10, hoist cable.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As it is shown in figure 1, a kind of airsuspension system for commercial car the second steeraxle airbag lift, including the hoisting mechanism that two nested structures are identical, two set hoisting mechanisms are arranged symmetrically with use;Described hoisting mechanism includes the traction leaf spring 2 for providing traction and guide effect for the second vehicle bridge, is connected with vehicle frame 1 by towing bracket 3 front end of traction leaf spring 2, is connected with the second vehicle bridge the rear end of traction leaf spring 2;It is cased with lifting bracket 4 in the centre of traction leaf spring 2, is fixedly connected with pressing plate 5 in the upper end of traction leaf spring 2, pressing plate 5 supports and has carrying air bag 6, be fixed with air bag support 7 in the upper end of carrying air bag 6;During assembling, the inner side of air bag support 7 is connected with vehicle frame 1, is fixed with lifting air bag 8 in the upper end of air bag support 7, is provided with lift arm 9 in the upper end promoting air bag 8, makes two installed surfaces up and down of lifting air bag 8 be connected with lift arm 9 and air bag support 7 respectively;It is fixedly arranged at the front end with hoist cable 10 at lift arm 9, the lower end of hoist cable 10 is connected with described lifting bracket 4, the rear end of lift arm 9 is hinged on the rear side of air bag support 7.
During use, two set hoisting mechanisms are symmetrically arranged in vehicle frame both sides;Lift arm use radial type be arranged on rear side of air bag support so that it is can rotate around pin joint;Being arranged in the middle part of lift arm by lifting air bag, its upper and lower two installed surfaces are connected with lift arm and air bag support respectively;Lift arm plays scale-up version leverage effect, and active force is provided by air bag, and load puts on hoist point position (hoist cable and lift arm junction), vehicle bridge deadweight apply.Air bag has venting and inflation two states, the air bag deflation when the second vehicle bridge needs carrying, the airbag aeration when the second vehicle bridge needs to promote, make lift arm rotate by air bag height change, drive the elevated height of hoist point, by hoist cable, the second vehicle bridge is lifted away from ground and realizes enhanced feature.
In whole work process, promote air bag and carrying air bag can switch mutually;During lifting, promote airbag aeration carrying air bag deflation, lift arm drives hoist cable to be lifted up, hoist cable pulls lifting bracket to drive traction leaf spring and the second vehicle bridge to promote, the effect of towing bracket is that the second vehicle bridge rises traction and guide effect when carrying, traction leaf spring does not play carrying effect, and carrying air bag, traction leaf spring, the second vehicle bridge are connected into entirety, and transmitted to vehicle frame to air bag support to carrying air bag from the second vehicle bridge by bearing capacity when carrying by pressing plate;During carrying, promoting air bag deflation carrying airbag aeration, the two remotely operates realization switching by ecp.
It is illustrated in figure 2 electric control schematic diagram of the present utility model, electric-control system is controlled by ignition lock ON shelves, permutator is selecting type, middle load must have one end to connect with heavy duty pattern, two electromagnetic valves of on-off control are controlled by floating axle, the electromagnetic valve of energising forms open circuit, and gas circuit can be passed through, and another electromagnetic valve disconnects gas circuit simultaneously.
Being illustrated in figure 3 schematic diagram of gas circuit of the present utility model, air tank is stand alone type, shares source of the gas with car load, forms independent gas circuit by four-loop protection valve, it is achieved gas circuit energy storage function;Air tank is respectively connected to middle load and heavy duty electromagnetic valve via pressure regulator valve, three way cock, and wherein pressure regulator valve is open in usual, regulates system pressure, and electromagnetic valve is normally closed type, is path after energising;After electromagnetic valve, gas circuit is respectively connected to promote air bag and carrying air bag by quick release valve, and the airbag aeration of path, open circuit air bag is exitted by quick release valve, it is achieved power and energy.
The air suspension structure that this utility model adds carrying air bag by using traction leaf spring replaces original steel plate suspension, makes space arrange more reasonable, traction, guide function is separated with bearing function, efficiently solve the difficult problem overcoming suspension proper drag;Lift arm is set to radial type structure, utilizes leverage principle to amplify lift stroke;Two set hoisting mechanisms use simultaneously, use both arms Synchronous lifting to overcome monosaccate and promote the defect of easy sideslip.This system is designed by said structure, effectively overcomes the bottleneck of prior art so that the hoisting depth of the second steeraxle reaches 150mm, and suspension bearing capacity, up to 13 tons, complies fully with expected design and user's request.
The foregoing is only preferable possible embodiments of the present utility model, and be not used to limit to the scope of the claims of the present utility model, therefore the equivalent transformation that all utilization this utility model description are made, the most in like manner it is included within the scope of this utility model.

Claims (1)

1. the airsuspension system for commercial car the second steeraxle airbag lift, including the hoisting mechanism that two nested structures are identical, two set hoisting mechanisms are arranged symmetrically with, it is characterized in that: described hoisting mechanism includes the traction leaf spring for providing traction and guide effect for the second vehicle bridge, the front end of traction leaf spring is connected with vehicle frame by towing bracket, the rear end of traction leaf spring is connected with the second vehicle bridge, traction leaf spring intermediate sleeve has lifting bracket, traction leaf spring upper end is provided with pressing plate, supporting on pressing plate and have carrying air bag, carrying air bag upper end is provided with air bag support;Being connected with vehicle frame inside air bag support, air bag support upper end is provided with lifting air bag, promotes air bag upper end and is provided with lift arm, and lift arm front end is provided with hoist cable, and hoist cable lower end is connected with described lifting bracket, and lift arm rear end is hinged on rear side of air bag support.
CN201620258306.1U 2016-03-31 2016-03-31 A air suspension system that is used for 2nd steering axle gasbag of commercial car to promote Active CN205553846U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620258306.1U CN205553846U (en) 2016-03-31 2016-03-31 A air suspension system that is used for 2nd steering axle gasbag of commercial car to promote

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620258306.1U CN205553846U (en) 2016-03-31 2016-03-31 A air suspension system that is used for 2nd steering axle gasbag of commercial car to promote

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107458164A (en) * 2017-07-28 2017-12-12 安徽江淮汽车集团股份有限公司 First front axle lifting suspension system
CN108891218A (en) * 2018-06-29 2018-11-27 潍柴动力股份有限公司 A kind of promotion airsuspension system and automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107458164A (en) * 2017-07-28 2017-12-12 安徽江淮汽车集团股份有限公司 First front axle lifting suspension system
CN108891218A (en) * 2018-06-29 2018-11-27 潍柴动力股份有限公司 A kind of promotion airsuspension system and automobile
CN108891218B (en) * 2018-06-29 2020-12-22 潍柴动力股份有限公司 Promote air suspension system and car

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