CN103016593B - Air spring auxiliary chamber with variable air volume - Google Patents
Air spring auxiliary chamber with variable air volume Download PDFInfo
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- CN103016593B CN103016593B CN201210544878.2A CN201210544878A CN103016593B CN 103016593 B CN103016593 B CN 103016593B CN 201210544878 A CN201210544878 A CN 201210544878A CN 103016593 B CN103016593 B CN 103016593B
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- fan
- cylinder body
- dividing plate
- central shaft
- shaped valve
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Abstract
The invention discloses an air spring auxiliary chamber of a vehicle air suspension, which has a variable volume. N separators are arranged in a cylindrical cylinder body to uniformly divide a cylinder body inner cavity into n small chambers along the axial direction; a center shaft extends into the cylinder body from the outside of one end of the cylinder body and is inserted in center holes of the n separators; the first separator is tightly attached to the other end face of the cylinder body; the same position on each separator is provided with a sector through hole which is coaxial with the center holes; the middle of each separator is provided with a cylindrical hollow slot which is coaxial with the center holes; a sector valve plate is arranged in each cylindrical hollow slot; all the sector valve plates are axially in rigid connection with the center shaft in a spiral manner along the center shaft; one end of the center shaft positioned outside the cylinder body is connected with a stepping motor and an angle sensor is arranged on the end face of the one end of the center shaft; and when the center shaft rotates by a certain angle every time, different sector valve plates are driven to seal the corresponding sector through holes, so that automatic and rapid change of the volume of the auxiliary chamber is implemented and an air spring obtains a large rigid variation range.
Description
Technical field
The invention belongs to vehicle air suspension system field, specifically the air spring additional air chamber of air suspension.
Background technique
The rigidity of the pneumatic spring in vehicle air suspension system and damping characteristic change along with the change of throttle valve opening.If air spring additional air chamber volume is fixed unadjustable, then the stiffness variation scope of pneumatic spring is just smaller.Increase the scope of air spring rigidity, air spring additional air chamber can be designed to adjustable.At present, the adjustment of volume is mainly realized by changing not isometric auxiliary chamber, this method cannot realize the Rapid Variable Design of auxiliary chamber, inconvenient operation, labor intensity is large, and the volume that cannot obtain auxiliary chamber quickly and accurately change in the stiffness characteristics of pneumatic spring, the greatly stability that travels of influence power vehicle.
Be in the patent documentation of CN 102003488 A and CN 102032309 A, propose structure auxiliary chamber being designed to multiple little cavity and being connected by through hole in patent publication No., realized the number of cavities be communicated with main gas tank by the opening and closing quantity controlling through hole, thus realize additional volume change.The requirement of stickiness and accuracy when but this structure cannot meet for the change of air spring rigidity, because gas has very large intake resistance when entering aperture, cause intake velocity very slow, and when auxiliary chamber is made up of multiple cavity, because gas is slow by the speed of aperture, be difficult to ensure that the pressure of each cavity is equal or close, therefore this structure the pressure difference of different cavity can be caused, so cannot obtain the stiffness characteristics of pneumatic spring in the volume change of auxiliary chamber quickly and accurately.
Summary of the invention
The object of the invention is to solve that the air spring rigidity excursion existed in above-mentioned prior art is little, auxiliary chamber volume can not the problem of quick adjustment, and the change improving air spring rigidity stickiness and accuracy and propose a kind of structure of air spring additional air chamber of variable volume when meeting, while the requirement of the excursion of satisfied increase air spring rigidity, improve the time stickiness and accuracy requirement to the rigidity of pneumatic spring of air spring additional air chamber volume adjustment.
The technical solution used in the present invention is: have a cylinder block, n dividing plate is had coaxially to be fixed on inboard wall of cylinder block in cylinder block, inner chamber of cylinder block is divided into n capacitor by this n dividing plate vertically, central shaft to stretch into from the outside of cylinder body one end in cylinder body and is through the center hole of n dividing plate, the other end of cylinder body there is the manhole being communicated with main gas tank, together with first dividing plate fits tightly with cylinder body other end; Same position place on every layer of dividing plate has the fan-shaped pylone coaxial with the center hole of dividing plate; The cylindric groove that one coaxial with the center hole of dividing plate is had in the middle of every layer of dividing plate, a fan-shaped valve block is provided with in each cylindric groove, the inner radius of fan-shaped valve block is fixedly connected with central shaft, the external diameter of fan-shaped valve block is identical with the external diameter of fan-shaped pylone, and the bi-side of fan-shaped valve block and the both ends of the surface of cylindric groove fit tightly; All fan-shaped valve blocks centrally axle axially helically formula to be rigidly connected central shaft, often adjacent two pieces of fan-shaped valve blocks stagger identical angle; Central shaft often turns over certain angle, drives different fan-shaped valve blocks to close corresponding fan-shaped pylone.
Further, central shaft one end that the present invention is being positioned at cylinder body outside connects stepper motor and arrange angle transducer on this end end face of central shaft, and angle transducer is through conditioning circuit connection control device, and controller connects stepper motor.
The present invention is when the fan-shaped valve block of diverse location communicates with corresponding fan-shaped pylone, and the capacitor having the corresponding number of plies communicates with main gas tank, thus realizes the automatic Rapid Variable Design of auxiliary chamber volume, makes pneumatic spring obtain larger stiffness variation scope.The present invention adopts electron controls technology to achieve the quick and precisely change of auxiliary chamber volume, pneumatic spring is made to obtain larger stiffness variation scope, and the time stickiness and accuracy requirement to the rigidity requirement of pneumatic spring met air spring additional air chamber volume adjustment, car riding stability and riding comfort can be improved, eliminate the artificial inconvenience changing auxiliary chamber simultaneously, save time and human cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of main body of the present invention;
Fig. 2 is central shaft in Fig. 1 and associated member schematic diagram thereof;
Fig. 3 is I partial enlarged drawing in Fig. 2;
Fig. 4 is the structural representation after removing central shaft, fan-shaped valve block in Fig. 1;
In figure: 1-cylinder body; 2-dividing plate; 3-fan-shaped pylone; 4-central shaft; 5-stepper motor; 6-angle transducer; 7-conditioning circuit; 8-controller; The fan-shaped valve block of 9-; 10-manhole; The cylindric groove of 11-.
Embodiment
As shown in Fig. 1,2,4, main body of the present invention is a cylinder block 1 and cylinder body 1 internal structure, and in cylinder block 1, have n dividing plate 2 to be coaxially fixed on the inwall of cylinder body 1, cylinder body 1 inner chamber is divided into n capacitor by this n dividing plate 2 vertically.Central shaft 4 stretches in cylinder body 1 from the outside of cylinder body 1 one end, is fixed on the other end of cylinder body 1, and central shaft 4 is through in the center hole of n dividing plate 2 in cylinder body 1.The other end of cylinder body 1 processes a manhole 10, auxiliary chamber is done to be communicated with main gas tank by pipeline by this manhole 10.Wherein, together with first dividing plate 2 fits tightly with the other end of cylinder body 1.
Same position place on every layer of dividing plate 2 has a fan-shaped pylone 3, and fan-shaped pylone 3 is coaxial with the center hole of dividing plate 2, and the internal diameter of fan-shaped pylone 3 is exactly the center bore of dividing plate 2, and namely fan-shaped pylone 3 communicates with the center hole of dividing plate 2.From the axis of cylinder body 1, the projection of the fan-shaped pylone 3 on every layer of dividing plate 2 is overlapped.And from axial, the axis projection of manhole 10 is within the axis projection of fan-shaped pylone 3.
As shown in Figure 1, 2, have a cylindric groove 11 in the middle of every layer of dividing plate 2, cylindric groove 11 is coaxial with dividing plate 2 center hole.A fan-shaped valve block 9 is provided with in each cylindric groove 11, the shape of fan-shaped valve block 9 is identical with the shape of the fan-shaped pylone 3 on dividing plate 2, the inner radius of fan-shaped valve block 9 is fixedly connected on central shaft 4, and the external diameter of fan-shaped valve block 9 is identical with the external diameter of fan-shaped pylone 3.The bi-side of fan-shaped valve block 9 and the both ends of the surface of dividing plate 2 inner circle cylindrical hollow groove 11 fit tightly.All fan-shaped valve blocks 9 centrally axle 4 axially helically formula be rigidly attached on central shaft 4, often adjacent two pieces of fan-shaped valve blocks 9 stagger identical angle.
As shown in Figure 2,3, central shaft 4 one end being positioned at cylinder body 1 outside connects stepper motor 5, and arranges angle transducer 6 on the end face of this end of central shaft 4.Angle transducer 6 connects conditioning circuit 7, and conditioning circuit 7 is connection control device 8 again, and controller 8 connects stepper motor 5.When stepper motor 5 receives the pulse signal of controller 8, stepper motor 5 is with central shaft 4 to rotate, and certain angular displacement occurs central shaft 4, and angle transducer 6 records the angle signal of central shaft 4, after conditioning circuit 7 processes, is transferred to controller 8.The pulse number receiving controller 8 along with stepper motor 5 is different, and the angle that central shaft 4 turns over will be different.Central shaft 4 often turns over an angle, central shaft 4 drives different fan-shaped valve blocks 9 just in time to enclose corresponding fan-shaped pylone 3 on dividing plate 2, thus make in cylinder body 1, have different capacitors to communicate with main gas tank, determining the volume be communicated with between main attached air chamber will be different, thus the volume that change auxiliary chamber is communicated with main gas tank.
As Figure 1-4, when corresponding fan-shaped pylone 3 is closed by the fan-shaped valve block 9 of the first near manhole 10 that central shaft 4 rotates on it, now in cylinder body 1, all capacitors are not communicated with main gas tank, and the available space of auxiliary chamber is zero.Corresponding fan-shaped pylone 3 is closed by the second slice fan-shaped valve block 9 adjacent to the fan-shaped valve block of first 9 rotated on it when central shaft 4, now the fan-shaped valve block 9 of first communicates with manhole 10, and all the other fan-shaped valve blocks 9 all communicate with fan-shaped pylone 3 on corresponding dividing plate.But because the fan-shaped pylone 3 on second layer dividing plate 2 is closed, so only have first layer capacitor to communicate with main gas tank, namely fan-shaped valve block 9 correspondence of first is communicated with first layer capacitor.When corresponding fan-shaped pylone 3 is closed by last a slice quadrant valve sheet 9 that central shaft 4 rotates on it, all communicate with main gas tank from first layer to layer capacitor second from the bottom.When last a slice quadrant valve sheet 9 that central shaft 4 rotates on it communicates with the fan-shaped pylone 3 on last one deck dividing plate 2, now, in cylinder body 1, all capacitors are all communicated with main gas tank.
Claims (3)
1. the air spring additional air chamber of a variable volume, there is a cylinder block (1), n dividing plate (2) is had coaxially to be fixed on cylinder body (1) inwall in cylinder block (1), it is characterized in that: cylinder body (1) inner chamber is divided into n capacitor by this n dividing plate (2) vertically, central shaft (4) to stretch into from the outside of cylinder body (1) one end in cylinder body (1) and is through the center hole of n dividing plate (2), the other end of cylinder body (1) there is the manhole (10) being communicated with main gas tank, together with first dividing plate (2) fits tightly with cylinder body (1) other end, same position place on every layer of dividing plate (2) has the fan-shaped pylone (3) coaxial with the center hole of dividing plate (2), the cylindric groove (11) that one coaxial with the center hole of dividing plate (2) is had in the middle of every layer of dividing plate (2), a fan-shaped valve block (9) is provided with in each cylindric groove (11), the inner radius of fan-shaped valve block (9) is fixedly connected with central shaft (4), the external diameter of fan-shaped valve block (9) is identical with the external diameter of fan-shaped pylone (3), and the bi-side of fan-shaped valve block (9) and the both ends of the surface of cylindric groove (11) fit tightly, all fan-shaped valve blocks (9) centrally axle (4) axially helically formula to be rigidly connected central shaft (4), often adjacent two pieces of fan-shaped valve blocks (9) are staggered identical angle, central shaft (4) often turns over certain angle, drives different fan-shaped valve blocks (9) to close corresponding fan-shaped pylone (3).
2. the air spring additional air chamber of a kind of variable volume according to claim 1, is characterized in that:
Be positioned at outside central shaft (4) one end of cylinder body (1) connect stepper motor (5) and arrange angle transducer (6) on this end end face of central shaft (4), angle transducer (6) is through conditioning circuit (7) connection control device (8), and controller (8) connects stepper motor (5).
3. the air spring additional air chamber of a kind of variable volume according to claim 1, is characterized in that: the axis projection of manhole (10) is within the axis projection of fan-shaped pylone (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544878.2A CN103016593B (en) | 2012-12-17 | 2012-12-17 | Air spring auxiliary chamber with variable air volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544878.2A CN103016593B (en) | 2012-12-17 | 2012-12-17 | Air spring auxiliary chamber with variable air volume |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016593A CN103016593A (en) | 2013-04-03 |
| CN103016593B true CN103016593B (en) | 2014-12-24 |
Family
ID=47965545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210544878.2A Expired - Fee Related CN103016593B (en) | 2012-12-17 | 2012-12-17 | Air spring auxiliary chamber with variable air volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103016593B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109083964B (en) * | 2018-08-31 | 2020-11-24 | 江苏科技大学 | Air spring volume adjusting mechanism and application and control method thereof |
| CN115723501A (en) * | 2022-11-08 | 2023-03-03 | 北京长安汽车工程技术研究有限责任公司 | Air spring assembly and car |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5255935A (en) * | 1990-03-09 | 1993-10-26 | Nippondenso Co., Ltd. | Air suspension system |
| JPH04211739A (en) * | 1990-03-09 | 1992-08-03 | Nippondenso Co Ltd | Air spring type suspension |
| CN102003488B (en) * | 2010-11-18 | 2012-05-23 | 江苏大学 | Variable-volume additional air chamber of constant internal pressure air spring |
| CN102003489B (en) * | 2010-11-19 | 2013-01-23 | 江苏大学 | Volume-variable multi-cavity air spring auxiliary chamber and working method thereof |
| CN102032309B (en) * | 2010-11-19 | 2012-06-20 | 江苏大学 | Volume variable additional air chamber of air spring |
| CN102207161B (en) * | 2011-04-02 | 2013-01-23 | 江苏大学 | Additional air chamber of air spring with variable volume |
| CN202280776U (en) * | 2011-09-26 | 2012-06-20 | 江苏大学 | Air spring auxiliary air chamber structure with variable volume |
| CN203067640U (en) * | 2012-12-17 | 2013-07-17 | 江苏大学 | Air spring additional air chamber with variable volume |
-
2012
- 2012-12-17 CN CN201210544878.2A patent/CN103016593B/en not_active Expired - Fee Related
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| CN103016593A (en) | 2013-04-03 |
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Granted publication date: 20141224 Termination date: 20161217 |