CN102032309A - volume variable additional air chamber of air spring - Google Patents
volume variable additional air chamber of air spring Download PDFInfo
- Publication number
- CN102032309A CN102032309A CN 201010549434 CN201010549434A CN102032309A CN 102032309 A CN102032309 A CN 102032309A CN 201010549434 CN201010549434 CN 201010549434 CN 201010549434 A CN201010549434 A CN 201010549434A CN 102032309 A CN102032309 A CN 102032309A
- Authority
- CN
- China
- Prior art keywords
- piston
- gas receiver
- storage barrel
- air
- cover plate
- 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.)
- Granted
Links
Images
Landscapes
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a volume variable additional air chamber of air spring. The outer part of the volume variable additional air chamber is a cylindrical air storage barrel, the inner cavity of the air storage barrel is circumferentially divided into eight equal sector cylindrical cells by the same partition boards, one side of each partition board is fixed on the inner wall of the air storage barrel, and the other side of each partition board stretches towards the center of the air storage barrel to form a closed cylindrical empty cavity tightly matched with a piston; the top end of the piston stretches out of the air storage barrel and is connected with a stepping motor through a screw rod; an altitude sensor is fixedly arranged on the top end face of the piston; the lower part of the air storage barrel is a lower sealing cover board, and a lower closed empty cavity is formed from the air storage barrel, the piston and the lower sealing cover board; a connecting hole communicated with a main air chamber is arranged in the center of the lower sealing cover board; and eight small holes communicated with the eight sector cylindrical cells in sequence are arranged on the side wall face of the cylindrical empty cavity, and the eight small holes are axially distributed along the cylindrical empty cavity from bottom to top in equal altitude difference. The volume of the additional air chamber can be rapidly changed so as to stabilize the air pressure of the main additional air chamber.
Description
Technical field:
The present invention relates to a kind of component that are used to make vehicle air suspension, be specifically related to a kind of air spring for automobile.
Background technique
Airsuspension system is more and more to be adopted by large-scale high-end vehicle, and it comprises pneumatic spring, vibration damper, guide mechanism, compressed air system and vehicle body height control system.After vehicle adopts air suspension, improved vehicle driving smoothness and riding comfort, reduced the impulsive load of driving system component road pavement and had and to have regulated the overhead ability of height of vehicle body within the specific limits.Pneumatic spring is a kind ofly to charge into pressurized air in scalable seal container, and the non-linear elastic element that utilizes the spring of air elastic reaction to carry out work has functions such as buffering, vibration isolation.The pneumatic spring of band auxiliary chamber is the critical component of air suspension, by improving the character that auxiliary chamber can improve pneumatic spring, makes pneumatic spring better be applied to Vehicular system.
At present, generally by injecting the volume that hydraulic oil changes auxiliary chamber, to improve the performance of pneumatic spring to auxiliary chamber.Its defective is: one, the response of auxiliary chamber volume-variation is slow, can change main attached air chamber air pressure in change procedure, causes the change of spring rate, influences vehicle stability.Its two, also need on traditional auxiliary chamber, increase oil-servicing facilities, not only increased fabricating cost, and in the as installed process, taken certain space, be unfavorable for the reasonable Arrangement of air suspension; Hydraulic oil is also easily revealed in the auxiliary chamber, pollutes; The air pocket that produces in the hydraulic oil also can part of damage, build-up of pressure and flowed fluctuation except producing vibration and noise.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art and provide a kind of and need not oil-servicing facilities, simple in structure, variable volume but the constant pneumatic spring auxiliary chamber of pressure.
The technical solution used in the present invention is: its outside is a columniform gas receiver, the gas receiver inner chamber is circumferentially to divide the fan-shaped cylinder cell that is separated with eight equalizations with identical dividing plate, each dividing plate one side is fixed in the gas receiver inwall, the dividing plate opposite side stretch to the gas receiver center and form one with the close-fitting airtight cylindrical cavity of piston; Piston tip is stretched out outside the gas receiver and by leading screw and is connected stepper motor; Fixedly install height sensor on the piston head end face; The gas receiver bottom is the lower seal cover plate, is made of the bottom closed cavity of gas receiver gas receiver, piston and lower cover sealed cover; The attachment hole that is communicated with main gas tank is set in the middle of the lower seal cover plate; On the side wall surface of described cylindrical cavity, be provided with eight apertures that are communicated with eight fan-shaped cylinder cells in turn, eight apertures along described cylindrical cavity axially from top to bottom with equal altitudes difference cloth.
Beneficial effect of the present invention is as follows:
1, the change of auxiliary chamber volume of the present invention is only relevant with depth pistion, does not have the requirement that machinery is adjusted operation, can change the auxiliary chamber volume fast, to the influence of gas pressure, makes the stable gas pressure of main attached air chamber when having reduced to change the auxiliary chamber volume.
2, the height sensor testing range is big, the step motor control sensitivity, can form high-precision measurement electric control system with computer, eliminated oil-servicing facilities, avoid the hidden danger of fluid power controlling type auxiliary chamber equipment oil leakage, overall structure is simpler, satisfies pneumatic spring fully and adapts to the vehicle operating requirement, has better practicability.
Description of drawings
Fig. 1 is a structural representation of the present invention, and lower seal cover plate 8 is for splitting structure;
Fig. 2 is the working state schematic representation that an aperture 10 is communicated with the bottom closed cavity;
Fig. 3 is the working state schematic representation that three apertures 10 are communicated with the bottom closed cavity;
Among the figure: 1-gas receiver; 2-auxiliary chamber demarcation strip; 3-piston; 4-height sensor; 5-upper cover plate; 6-stepper motor; 7-leading screw; 8-lower seal cover plate; 9-attachment hole; 10-aperture; 11-fan-shaped cylinder cell.
Embodiment
Referring to Fig. 1, outside of the present invention is a columniform gas receiver 1, gas receiver 1 inner chamber evenly is separated into the fan-shaped cylinder cell 11 of eight equalizations on the circumferencial direction of gas receiver 1 inner chamber with identical dividing plate 2.One side of each dividing plate 2 is fixed on gas receiver 1 inwall, the opposite side of dividing plate 2 stretches to gas receiver 1 center, and the opposite side of dividing plate 2 is combined into an airtight cylindrical cavity at gas receiver 1 center, and promptly the side wall surface of this cylindrical cavity is made up of the opposite side of all dividing plates 2.This airtight cylindrical cavity is in order to installing piston 3, and closely cooperates with piston 3, and piston 3 can move up and down along center line in this cylindrical cavity.Stretch out outside the gas receiver 1 on the top of piston 3, fixed installation height sensor 4 on piston 3 tops.Have tapped hole in the middle of piston 3 tops, the fixedly connected leading screw of this tapped hole 7 lower ends, leading screw 7 upper ends are by the fixedly connected stepper motor 6 of coupling.Install cover plate 5 on gas receiver 1 top, can avoid dust impurity to fall in gas receiver 1 inner chamber.In gas receiver 1 bottom is lower seal cover plate 8.Stepper motor 6 is placed on the upper cover plate 5.Like this, when stepper motor 6 rotating band movable wire thick sticks 7 rotate, drive piston 3 simultaneously and in cylindrical cavity, move up and down.Because gas receiver 1, piston 3 and lower cover sealed cover 8 have constituted the bottom closed cavity of gas receiver 1, and piston 3 moves up and down Shi Buhui and makes air leakage in cylindrical cavity.
Referring to Fig. 2, at attachment hole 9 of intermediate open position of lower seal cover plate 8, this attachment hole 9 makes the bottom closed cavity directly be communicated with main gas tank by pipeline connection main gas tank.Have eight apertures 10 on the side wall surface of cylindrical cavity, these eight apertures 10 are communicated with eight fan-shaped cylinder cells 11 in turn, and these eight apertures 10 along cylindrical cavity axially from top to bottom with equal altitudes difference cloth.The bottom closed cavity that these eight apertures 10 make gas receiver 1, piston 3 and lower cover sealed cover 8 constitute can communicate with each fan-shaped cylinder cell 11 of gas receiver 1.
Requirement to piston 3 length is when piston 3 is placed in the cylindrical cavity bottommost, its upper-end surface is on the aperture 10 of extreme higher position, can make piston 3 seal up the aperture 10 of extreme higher position, also promptly eight apertures 10 are all sealed by piston 3, do not have aperture 10 to be communicated with the bottom closed cavity.Because the bottom closed cavity directly is communicated with main gas tank, and each aperture 10 is connected with following closed cavity, so when piston 3 was placed in the cylindrical cavity lowest position, main gas tank did not communicate with fan-shaped cylinder cell 11.Be placed in the cylindrical cavity highest point and work as piston 3, the aperture 10 of extreme higher position is communicated with the bottom closed cavity, and also promptly eight apertures 10 all are communicated with the bottom closed cavities.The height sensor 4 of piston 3 top ends can not run into upper cover plate 5, and height sensor 4 can not interfere with upper cover plate 5.This position, main gas tank all communicates with eight fan-shaped cylinder cells 11.
When the present invention works, when gas charging system is inflated pneumatic spring, the valve open between main, the attached air chamber, piston 3 is placed in highest point, makes the winner, attached air chamber is full of air simultaneously and air pressure is identical.When pneumatic spring needs little rigidity, control system is sent instruction to the stepper motor 6 that connects on it, making stepper motor 6 drive leading screw 7 rotates, will drive piston 3 motions like this, in the movement process of piston 3, height sensor 4 can in time be measured the distance between piston 3 and the upper cover plate 5, because the height of upper cover plate 5 and lower seal cover plate 8 is definite values, thereby must go out the distance of piston 3 lower end surfaces and lower seal cover plate 5 upper-end surfaces, having drawn several apertures 10 on this basis is opened, promptly there are several fan-shaped cylinder cells 11 to be connected with main gas tank, and height sensor 4 is given control system with the signal feed back that produces, and control system in time stops the rotation of stepper motor 6 on this basis.As Fig. 2 is after piston 3 moves upward, aperture 10 by and piston 3 and lower seal cover plate 8 between the bottom closed cavity connect, just auxiliary chamber fan-shaped cylinder cell 11 is connected with main gas tank, Fig. 3 is after piston 3 moves upward again, three apertures 10 are communicated with the bottom closed cavity, and promptly three fan-shaped cylinder cells 11 and main gas tank are communicated with.When the rigidity of pneumatic spring need change, the pneumatic spring control system can be sent instruction and give stepper motor 3, rotate the volume that changes the auxiliary chamber that is communicated with main gas tank by stepper motor 3, in this process, control system can be carried out information gathering, realizes the change of master when pressure remains unchanged, attached gas chamber volume better.
Claims (3)
1. the pneumatic spring auxiliary chamber of a variable volume, its outside is a columniform gas receiver (1), it is characterized in that; Gas receiver (1) inner chamber is circumferentially to divide the fan-shaped cylinder cell (11) that is separated with eight equalizations with identical dividing plate (2), each described dividing plate (2) one side is fixed in gas receiver (1) inwall, dividing plate (2) opposite side stretch to gas receiver (1) center and form one with the close-fitting airtight cylindrical cavity of piston (3); Piston (3) top is stretched out outside the gas receiver (1) and by leading screw (7) and is connected stepper motor (6); Fixedly install height sensor (4) on piston (3) top end; Gas receiver (1) bottom is lower seal cover plate (8), is made of the bottom closed cavity of gas receiver (1) gas receiver (1), piston (3) and lower cover sealed cover (8); The attachment hole (9) that is communicated with main gas tank is set in the middle of lower seal cover plate (8); On the side wall surface of described cylindrical cavity, be provided with eight apertures (10) that are communicated with eight fan-shaped cylinder cells (11) in turn, eight apertures (10) along described cylindrical cavity axially from top to bottom with equal altitudes difference cloth.
2. the pneumatic spring auxiliary chamber of a kind of variable volume according to claim 1 is characterized in that; Piston (3) is positioned at described cylindrical cavity bottommost place, is sealed with eight apertures (10); Piston (3) is positioned at described cylindrical cavity highest position, and eight apertures (10) all are communicated with described bottom closed cavity.
3. the pneumatic spring auxiliary chamber of a kind of variable volume according to claim 1 is characterized in that; Gas receiver (1) top has upper cover plate (5), and stepper motor (6) is arranged on the cover plate (5); Upper cover plate (5) is not interfered with height sensor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105494349A CN102032309B (en) | 2010-11-19 | 2010-11-19 | Volume variable additional air chamber of air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105494349A CN102032309B (en) | 2010-11-19 | 2010-11-19 | Volume variable additional air chamber of air spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102032309A true CN102032309A (en) | 2011-04-27 |
| CN102032309B CN102032309B (en) | 2012-06-20 |
Family
ID=43885605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105494349A Expired - Fee Related CN102032309B (en) | 2010-11-19 | 2010-11-19 | Volume variable additional air chamber of air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102032309B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287471A (en) * | 2011-07-19 | 2011-12-21 | 杨洁 | Dynamic stiffness adjusting air spring capable of adapting to pressure-volume combination |
| CN102330775A (en) * | 2011-07-17 | 2012-01-25 | 贺劼 | Air spring with function of regulating dynamic rigidity according to adaptive pressure and buffering step pressure |
| CN102330774A (en) * | 2011-07-17 | 2012-01-25 | 贺劼 | Air spring with stiffness adjusted by filler and pressure and step-pressure buffer |
| CN102401076A (en) * | 2011-06-22 | 2012-04-04 | 贺劼 | Compound air spring combining internal spiral spring with volume adjustment |
| CN102401057A (en) * | 2011-06-21 | 2012-04-04 | 贺劼 | Air spring with static stiffness adjusted through capacity and dynamic stiffness adjusted through throttling |
| CN102401061A (en) * | 2011-06-21 | 2012-04-04 | 贺劼 | Air spring with static stiffness adjusted by charging liquid and dynamic stiffness adjusted by self-adaption |
| CN103016593A (en) * | 2012-12-17 | 2013-04-03 | 江苏大学 | Air spring auxiliary chamber with variable air volume |
| CN109109604A (en) * | 2018-08-31 | 2019-01-01 | 江苏科技大学 | A kind of air spring volume adjustment mechanism and its control method |
| CN113565923A (en) * | 2021-07-26 | 2021-10-29 | 长沙理工大学 | Broadband vibration absorber and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0569721A (en) * | 1991-09-13 | 1993-03-23 | Hino Motors Ltd | Car height adjust device for air suspension car |
| US5255935A (en) * | 1990-03-09 | 1993-10-26 | Nippondenso Co., Ltd. | Air suspension system |
| DE202005005943U1 (en) * | 2005-04-13 | 2005-09-08 | A-PRO Tech Co., Ltd., Tachia | Pneumatic shock absorber has additional air chamber divided in two by floating piston, second additional chamber in deployable sleeve and divided in two by second floating piston |
| CN201240242Y (en) * | 2008-07-29 | 2009-05-20 | 郭孔辉 | Load sensing variable damping or controllable load sensing variable damping shock mitigation system |
| CN201891791U (en) * | 2010-11-19 | 2011-07-06 | 江苏大学 | Additional air chamber with variable volume of air spring |
-
2010
- 2010-11-19 CN CN2010105494349A patent/CN102032309B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5255935A (en) * | 1990-03-09 | 1993-10-26 | Nippondenso Co., Ltd. | Air suspension system |
| JPH0569721A (en) * | 1991-09-13 | 1993-03-23 | Hino Motors Ltd | Car height adjust device for air suspension car |
| DE202005005943U1 (en) * | 2005-04-13 | 2005-09-08 | A-PRO Tech Co., Ltd., Tachia | Pneumatic shock absorber has additional air chamber divided in two by floating piston, second additional chamber in deployable sleeve and divided in two by second floating piston |
| CN201240242Y (en) * | 2008-07-29 | 2009-05-20 | 郭孔辉 | Load sensing variable damping or controllable load sensing variable damping shock mitigation system |
| CN201891791U (en) * | 2010-11-19 | 2011-07-06 | 江苏大学 | Additional air chamber with variable volume of air spring |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401057A (en) * | 2011-06-21 | 2012-04-04 | 贺劼 | Air spring with static stiffness adjusted through capacity and dynamic stiffness adjusted through throttling |
| CN102401061A (en) * | 2011-06-21 | 2012-04-04 | 贺劼 | Air spring with static stiffness adjusted by charging liquid and dynamic stiffness adjusted by self-adaption |
| CN102401076A (en) * | 2011-06-22 | 2012-04-04 | 贺劼 | Compound air spring combining internal spiral spring with volume adjustment |
| CN102330775A (en) * | 2011-07-17 | 2012-01-25 | 贺劼 | Air spring with function of regulating dynamic rigidity according to adaptive pressure and buffering step pressure |
| CN102330774A (en) * | 2011-07-17 | 2012-01-25 | 贺劼 | Air spring with stiffness adjusted by filler and pressure and step-pressure buffer |
| CN102287471A (en) * | 2011-07-19 | 2011-12-21 | 杨洁 | Dynamic stiffness adjusting air spring capable of adapting to pressure-volume combination |
| CN103016593A (en) * | 2012-12-17 | 2013-04-03 | 江苏大学 | Air spring auxiliary chamber with variable air volume |
| CN109109604A (en) * | 2018-08-31 | 2019-01-01 | 江苏科技大学 | A kind of air spring volume adjustment mechanism and its control method |
| CN113565923A (en) * | 2021-07-26 | 2021-10-29 | 长沙理工大学 | Broadband vibration absorber and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102032309B (en) | 2012-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102032309B (en) | Volume variable additional air chamber of air spring | |
| CN201891791U (en) | Additional air chamber with variable volume of air spring | |
| CN104047987B (en) | A kind of Novel oil gas spring | |
| CN102720795A (en) | Hydro-pneumatic spring for amphibious vehicles and hydraulic regulating device for hydro-pneumatic spring for amphibious vehicle | |
| CN201575100U (en) | Controllable extension and retract shock absorber | |
| CN103615549B (en) | A kind of aerodynamic testing equipment heavy caliber high pressure pressure regulator valve | |
| US10348154B2 (en) | Shock absorption mechanism of steering motor | |
| CN104373497A (en) | Parallel-connection liquid-electricity feed suspension system | |
| CN107559372A (en) | A kind of bypass type energy regenerative type Vehicle Semi-active Suspension actuator and its control method | |
| GB786839A (en) | Improvements in or relating to suspensions for vehicles | |
| CN203836059U (en) | Three-cylinder adjustable damper with damping force | |
| CN103410908A (en) | Regulating type hydraulic damper | |
| CN102679140B (en) | A kind of multi-section type rubber film sealing gas chamber | |
| CN1221687A (en) | Automotive tyre explosion safety tyre pressure indicating adjustable suspension system | |
| CN108638778B (en) | Built-in single capsule suspension gas spring | |
| CN202707642U (en) | Adjustable travel piston type energy accumulator | |
| CN203500353U (en) | Shock absorber and vehicle shock absorption system | |
| CN201496460U (en) | Oil-gas separated shock absorber | |
| CN201892620U (en) | Variable volume additional air chamber testing device of air spring | |
| CN101949424B (en) | Automatic adjust control frequency's shock absorber | |
| CN101994774B (en) | Lateral damper with double-acting valve structure | |
| CN102003488B (en) | Variable-volume additional air chamber of constant internal pressure air spring | |
| CN105221632A (en) | A kind of damping continuously adjustabe hydro pneumatic suspension | |
| CN112178110B (en) | Liquid elastic vibration isolator capable of achieving assembly type frequency modulation | |
| CN111828530B (en) | Shock absorber and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20121119 |