CN108189636B - Secondary lifting device for axle of medium and heavy truck - Google Patents
Secondary lifting device for axle of medium and heavy truck Download PDFInfo
- Publication number
- CN108189636B CN108189636B CN201810029797.6A CN201810029797A CN108189636B CN 108189636 B CN108189636 B CN 108189636B CN 201810029797 A CN201810029797 A CN 201810029797A CN 108189636 B CN108189636 B CN 108189636B
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- air
- lifting
- air bag
- pressure
- bearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
Abstract
The invention discloses a secondary lifting device for a middle-heavy truck axle, which relates to the field of automobile equipment.A technical scheme is that the secondary lifting device comprises an energy storage device which takes a high-pressure air source of a whole truck chassis as an air supply source, the energy storage device is respectively communicated with air source ports of a lifting electromagnetic valve and a high-low pressure electromagnetic valve through air pipes to provide air sources for the lifting electromagnetic valve and the high-low pressure electromagnetic valve, and an air outlet A of the high-low pressure electromagnetic valve is sequentially connected with a low-pressure regulating valve, a one-way; the air outlet B of the high-low pressure electromagnetic valve is sequentially communicated with the one-way valve and the air source port of the relay valve, and the air outlet of the relay valve is respectively communicated with the bearing air bag through an air pipe. The invention has the beneficial effects that: compared with the prior art, the axle secondary lifting device has the advantages that the structure is compact, the assembly space is saved, the universality is good, and the assembly efficiency of the whole vehicle is improved. The invention has the advantages of small required assembly space and reasonable layout, and can greatly meet the requirements of medium and heavy-duty automobiles with mixed air suspensions and steel plate spring balance suspensions.
Description
Technical Field
The invention relates to the field of automobile equipment, in particular to a secondary lifting device for an axle of a medium and heavy truck.
Background
At present, the lifting of the axle of a medium and heavy truck can be realized by two modes of mechanical and electric control regulation. The mechanical type is economical and practical, and only simple adjustment control of the no-load state and the full-load state of the axle can be realized; the electric control type can realize three states of no-load, light load and full load, but has complex structure and high cost. The invention can make the vehicle bridge realize three states of no-load, light load and full load. The invention provides a new solution by combining mechanical and electronic modes, and meets the practical and economic characteristics of the system on the basis of ensuring the relevant functions of short response time, high reliability and the like.
Disclosure of Invention
In order to achieve the purpose, the invention provides a two-stage lifting device which is good in stability and high in reliability and aims at the axle of a medium-heavy type automobile, aiming at the problem of lifting of the axle of the medium-heavy type automobile.
A secondary lifting device for a middle-heavy truck axle comprises an energy storage device 5 taking a high-pressure air source of a whole truck chassis as an air supply source, wherein the energy storage device 5 is respectively communicated with air source ports of a lifting electromagnetic valve 8 and a high-low pressure electromagnetic valve 9 through air pipes to provide air sources for the energy storage device, and an air outlet A of the high-low pressure electromagnetic valve 9 is sequentially connected with a low-pressure regulating valve 12, a one-way valve 13 and an air source port of a relay valve 27 in series to form an air passage; the air outlet B of the high-low pressure electromagnetic valve 9 is sequentially communicated with the one-way valve 15 and an air source port of the relay valve 27, and the air outlet of the relay valve 27 is respectively communicated with the first bearing air bag 25 and the second bearing air bag 29 through air pipes;
the air outlet A of the lifting electromagnetic valve 8 is communicated with the control ports of the pressure switching electromagnetic valve 20, the high-pressure regulating valve 16 and the relay valve 27 in sequence; the air outlet B of the lifting electromagnetic valve 8 is communicated with the axle lifting air bag I14 and the axle lifting air bag II 19 through air pipes;
one ends of the first bearing air bag 25 and the second bearing air bag 29 are respectively fixed on the axle through brackets, and the other ends of the first bearing air bag and the second bearing air bag are fixed at the lower wing surface position of the frame through brackets; when the two bearing airbags are inflated, the bearing airbags stretch along the axis direction to complete the lifting of the frame; when exhausting, the bearing air bag is compressed along the axis direction to complete the height reduction action of the frame.
One end of the first lifting air bag 14 and one end of the second lifting air bag 19 are fixed on the frame through lifting brackets, and the other ends of the first lifting air bag and the second lifting air bag are connected with the axle through tension rods. When the two lifting air bags are inflated, the lifting air bags stretch along the axis direction, and meanwhile, the tension rods move together to drive the axle to realize lifting action; when exhausting, the lifting air bag is compressed along the axis direction of the air bag under the action of the gravity of the axle, and meanwhile, the tension rods move together to drive the axle to realize height reduction.
The high-low pressure change-over switch 1 is connected with the high-low pressure electromagnetic valve 9 to form a control passage; when the high-low pressure change-over switch 1 is switched off, the air outlet B of the high-low pressure electromagnetic valve 9 is communicated with the air source port of the relay valve 27; when the high-low pressure change-over switch 1 is closed, the air outlet A of the high-low pressure electromagnetic valve 9 is communicated with the air source port of the relay valve 27;
the lifting switch 2 is connected with the lifting electromagnetic valve 8 to form a control passage; when the lifting switch 2 is switched off, the air outlet B of the lifting electromagnetic valve 8 is communicated with the first lifting air bag 14 and the second lifting air bag 19 to inflate the two lifting air bags, at the moment, the air outlet A of the lifting electromagnetic valve 8 and the air pipe 18 are cut off, the first bearing air bag 25 and the second bearing air bag 29 are exhausted through the air outlet of the relay valve 27, and the axle is lifted to a set position; when the lifting switch 2 is closed, the air outlet B of the lifting electromagnetic valve 8 is cut off, the first lifting air bag 14 and the second lifting air bag 19 are exhausted through the air outlet of the lifting electromagnetic valve 8, at the moment, the air outlet A of the lifting electromagnetic valve 8 and the air pipe 18 are ventilated, the first bearing air bag 25 and the second bearing air bag 29 are inflated, and the axle is loaded until the set position height is reached;
the pressure switch (3) is connected with the pressure switching electromagnetic valve (20) to form a control passage; when the pressure switch 3 is in a disconnected state, the air outlet of the pressure switching electromagnetic valve 20 is ventilated and is regulated by the high-pressure regulating valve 16, a high-pressure air source set by the high-pressure regulating valve 16 is communicated with a control port of the relay valve 27, and the air outlet 2 of the relay valve 27 inflates the first bearing air bag 25 and the second bearing air bag 29; when the pressure switch 3 is closed, the air outlet of the pressure switch solenoid valve 20 is cut off, and the first bearing air bag 25 and the second bearing air bag 29 perform air exhaust operation through the air outlet of the relay valve 27.
Preferably, the low pressure regulator valve 12 and the high pressure regulator valve 16 are both pressure regulator valves with backflow.
Preferably, the first bearing air bag 25 and the second bearing air bag 29 are provided with air pressure sensors, and the air pressure sensors are electrically connected with indicator lights arranged on the high-low voltage change-over switch 1. Through the conversion of pressure and electric signals, the light flicker is finally reflected to the high-low voltage change-over switch 1.
An axle lifting method of a secondary lifting device of an axle of a heavy truck,
when the high-low voltage change-over switch 1, the lifting switch 2 and the pressure change-over switch 3 are all switched off, the lifting air bag I14 and the lifting air bag II 19 are inflated, the bearing air bag I25 and the bearing air bag II 29 are in an exhaust state, and the lifting axle can be in an idle-load lifting state;
when the lifting switch 2 is closed, the first lifting air bag 14 and the second lifting air bag 19 are exhausted, the first bearing air bag 25 and the second bearing air bag 29 are in an inflated state, and the lifting axle is in a full-load bearing state;
when the liftable axle is in a full-load bearing state, the high-low pressure change-over switch 1 is pressed, the air outlet of the high-low pressure electromagnetic valve 9 is ventilated, and low air pressure is adjusted by the low-pressure adjusting valve 12 to supply air to the air source port of the relay valve 27; the pressure switch 3 is pressed, the air outlet of the pressure switching electromagnetic valve 20 is cut off, the control port of the relay valve 27 is cut off, and the bearing air bag I25 and the bearing air bag II 29 are exhausted from the air outlet of the relay valve 27 through an air pipe;
when the pressure values in the first bearing air bag 25 and the second bearing air bag 29 reach the numerical value required by the air pressure sensor, the indicator lamp on the high-low pressure switch 1 flickers to give an early warning prompt, at the moment, the pressure switch 3 is pressed again to rebound, the air outlet of the pressure switching electromagnetic valve 20 is ventilated, the pressure is regulated through the high-pressure regulating valve 16, the control port of the relay valve 27 is ventilated, the air outlet of the relay valve 27 is ventilated, and therefore the first bearing air bag 25 and the second bearing air bag 29 are inflated with low pressure air pressure, and the light load state of the air bags can be improved.
Through the steps, the conversion of the empty load state, the light load state and the heavy load state of the axle of the medium-heavy automobile is realized, and the safety, the reliability and the stability of the running of the automobile are improved.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: compared with the prior art, the axle secondary lifting device has the advantages that the structure is compact, the cost is low, the assembly space is saved, the universality is good, and the assembly efficiency of the whole vehicle is improved. The invention has the advantages of small required assembly space and reasonable layout, and can greatly meet the requirements of medium and heavy-duty automobiles with mixed air suspensions and steel plate spring balance suspensions.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Wherein the reference numerals are: 1. a high-low voltage change-over switch; 2. a lift switch; 3. a pressure switch; 4. an energy storage device gas source tube; 5. an energy storage device; 6. lifting the electromagnetic valve air source pipe; 7. a high-low pressure switching solenoid valve air source pipe; 8. lifting the electromagnetic valve; 9. a high-low pressure solenoid valve; 10. an air tube; 11. an air tube; 12. low pressure regulator valves (with reverse flow); 13. a one-way valve; 14. lifting the first air bag; 15. a one-way valve; 16. high pressure regulating valves (with reverse flow); 17. an air tube; 18. an air tube; 19. lifting the air bag II; 20. a pressure switching solenoid valve; 21. an air tube; 22. an air tube; 23. an air tube; 24. an air pressure sensor; 25. a first bearing air bag; 26. an air tube; 27. a relay valve; 28. an air tube; 29. and a second bearing air bag.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting.
Example 1
Referring to fig. 1, the invention provides an example of a device capable of realizing secondary lifting of an axle of a medium and heavy duty vehicle, which is composed of a high-low pressure change-over switch 1, a lifting switch 2, a pressure change-over switch 3, a lifting electromagnetic valve 8, a high-low pressure electromagnetic valve 9, a pressure change-over electromagnetic valve 20, a low-pressure regulating valve (with reverse flow) 12 and a high-pressure regulating valve (with reverse flow) 16. The energy storage device 5 receives a high-pressure air source from a chassis of the whole vehicle through an energy storage device air source pipe 4, and the energy storage device 5 respectively provides required air sources for an air source port P of a lifting electromagnetic valve 8 and a high-low pressure electromagnetic valve 9 through a lifting electromagnetic valve air source pipe 6 and a high-low pressure switching electromagnetic valve air source pipe 7; the air outlet A of the high-low pressure electromagnetic valve 9 is communicated with the air source port 1 of a low-pressure regulating valve (with a counter flow) 12 through an air pipe 11, the air outlet 2 of the low-pressure regulating valve (with a counter flow) 12 is assembled with the air inlet 1 of a check valve 13, the air outlet 2 of the check valve 13 is connected with the air source port 1 of a relay valve 27 through an air pipe 23, the air outlet B of the high-low pressure electromagnetic valve 9 is connected with the air inlet 1 of a check valve 15 through an air pipe 10, and the air outlet 2 of the check valve 15 is connected with; the air outlet 2 of the relay valve 27 is respectively communicated with a first bearing air bag 25 and a second bearing air bag 29 through air pipes 26 and 28; the air outlet A of the lifting electromagnetic valve 8 is communicated with the air inlet P of the pressure switching electromagnetic valve 20 through an air pipe 18, the air outlet B of the pressure switching electromagnetic valve 20 is communicated with the air inlet 1 of the high-pressure regulating valve (with countercurrent) 16 through an air pipe 21, and the air outlet 2 of the high-pressure regulating valve (with countercurrent) 16 is communicated with the control port 4 of the relay valve 27; an air outlet B of the lifting electromagnetic valve 8 is communicated with a first axle lifting air bag 14 and a second axle lifting air bag 19 through an air pipe 17; wherein, the high-low pressure change-over switch 1 controls the high-low pressure electromagnetic valve 9, and in the off state, the air outlet B of the high-low pressure electromagnetic valve 9, the air pipe 10, the air source port 1 of the relay valve 27 are communicated with the one-way valve 15 and the air pipe 22; in a closed state, an air outlet A of the high-low pressure electromagnetic valve 9, an air pipe 11 and a low-pressure regulating valve (with countercurrent) 12 are communicated and are regulated by the low-pressure regulating valve (with countercurrent) 12, and a low-pressure air source set by the low-pressure regulating valve (with countercurrent) 12 is communicated with an air source port 1 of the relay valve 27 through a one-way valve 13 and an air pipe 23; the lifting switch 2 controls the lifting electromagnetic valve 8, the air outlet B of the lifting electromagnetic valve 8, the air pipe 17, the lifting air bag I14 and the lifting air bag II 19 are communicated in an open state, the lifting air bag is inflated, at the moment, the air outlet A of the lifting electromagnetic valve 8 and the air pipe 18 are cut off, the bearing air bag is exhausted, the axle is lifted until the set position is reached, in a closed state, the air outlet B of the lifting electromagnetic valve 8 is cut off, the lifting air bag I14 and the lifting air bag II 19 are exhausted through the air pipe 17 and the air outlet of the lifting electromagnetic valve 8, at the moment, the air outlet A of the lifting electromagnetic valve 8 and the air pipe 18 are ventilated, the bearing air; the pressure switch 3 and the pressure switch solenoid valve 20 are controlled by the high pressure regulating valve (with reverse flow) 16 through the air outlet B of the pressure switch solenoid valve 20 and the air pipe 21 in the off state, the high pressure air source set by the high pressure regulating valve (with reverse flow) 16 is communicated with the control port 4 of the relay valve 27, the air outlet 2 of the relay valve 27 and the air pipes 26 and 28 inflate the first bearing air bag 25 and the second bearing air bag 29, and in the on state, the air outlet B of the pressure switch solenoid valve 20, the air pipe 21, the high pressure regulating valve (with reverse flow) 16 and the control port 4 of the relay valve 27 are cut off, and the first bearing air bag 25 and the second bearing air bag 29 perform exhaust action through the air pipes 26 and 28 and the exhaust. The air pressure sensor is arranged on the first bearing air bag 25, and is finally reflected to the high-low voltage change-over switch 1 in a light flickering mode through conversion of pressure and electric signals.
The high-low pressure change-over switch 1, the lifting switch 2 and the pressure change-over switch 3 are all in an off state, at the moment, the first lifting air bag 14 and the second lifting air bag 19 are inflated, the first bearing air bag 25 and the second bearing air bag 29 are in an exhaust state, the liftable axle is in an idle lifting state, when the lifting switch 2 is closed, the first lifting air bag 14 and the second lifting air bag 19 are exhausted, the first bearing air bag 25 and the second bearing air bag 29 are in an inflated state, and the liftable axle is in a full-load bearing state, at the moment, the high-low pressure change-over switch 1 is pressed, the air outlet A of the high-low pressure electromagnetic valve 9 is ventilated, low air pressure is regulated through the low-pressure regulating valve (with reverse flow) 12 to supply air to the air source port 1 of the relay valve 27, the pressure switch 3 is pressed, the air outlet B of the pressure change-over electromagnetic valve, 28, the air exhaust process is realized at the air outlet 3 of the relay valve 27, when the pressure value in the air bag reaches the value required by the air pressure sensor, the lamp on the high-low pressure switch 1 flickers to give an early warning prompt, at the moment, the pressure switch 3 is pressed again to rebound, the air outlet B of the pressure switching electromagnetic valve 20 is ventilated, the air passes through the high-pressure regulating valve (with reverse flow) 16, the control port 4 of the relay valve 27 is ventilated, the air outlet 2 of the relay valve 27 is ventilated, and finally the bearing air bags 25 and 29 are inflated with low pressure air pressure through the air pipes 26 and 28, so that the light load state of the air bags. Through the steps, the conversion of the empty load state, the light load state and the heavy load state of the axle of the medium-heavy automobile is realized, and the safety, the reliability and the stability of the running of the automobile are improved.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. A secondary lifting device for a middle and heavy truck axle is characterized by comprising an energy storage device (5) taking a high-pressure air source of a whole truck chassis as an air supply source, wherein the energy storage device (5) is respectively communicated with air source ports of a lifting electromagnetic valve (8) and a high-low pressure electromagnetic valve (9) through air pipes to provide air sources for the energy storage device, and an air outlet A of the high-low pressure electromagnetic valve (9) is sequentially connected with a low-pressure regulating valve (12), a one-way valve (13) in series and is connected with an air source port of a relay valve (27) to pass; the air outlet B of the high-low pressure electromagnetic valve (9) is sequentially communicated with a one-way valve (15) and an air source port of a relay valve (27), and the air outlet of the relay valve (27) is respectively communicated with a first bearing air bag (25) and a second bearing air bag (29) through air pipes;
the air outlet A of the lifting electromagnetic valve (8) is communicated with the control ports of the pressure switching electromagnetic valve (20), the high-pressure regulating valve (16) and the relay valve (27) in sequence; an air outlet B of the lifting electromagnetic valve (8) is communicated with a first axle lifting air bag (14) and a second axle lifting air bag (19) through an air pipe;
one ends of the first bearing air bag (25) and the second bearing air bag (29) are respectively fixed on the axle through brackets, and the other ends of the first bearing air bag and the second bearing air bag are fixed at the lower wing surface position of the frame through brackets; one ends of the first lifting air bag (14) and the second lifting air bag (19) are fixed on the frame through lifting brackets, and the other ends of the first lifting air bag and the second lifting air bag are connected with the axle through tension rods;
the high-low voltage change-over switch (1) is connected with the high-low voltage electromagnetic valve (9) to form a control passage;
the lifting switch (2) is connected with the lifting electromagnetic valve (8) to form a control passage;
the pressure switch (3) is connected with the pressure switching electromagnetic valve (20) to form a control passage;
when the high-low voltage change-over switch (1), the lifting switch (2) and the pressure change-over switch (3) are all switched off, a first lifting air bag (14) and a second lifting air bag (19) are inflated, a first bearing air bag (25) and a second bearing air bag (29) are in an exhaust state, and a liftable axle is in an idle lifting state;
when the lifting switch (2) is closed, the first lifting air bag (14) and the second lifting air bag (19) are exhausted, the first bearing air bag (25) and the second bearing air bag (29) are in an inflated state, and the lifting axle can be in a full-load bearing state;
when the liftable axle is in a full-load bearing state, the high-low pressure change-over switch (1) is pressed, the air outlet A of the high-low pressure electromagnetic valve (9) is ventilated, and low air pressure is adjusted through the low-pressure adjusting valve (12) to supply air to the air source opening of the relay valve (27); and (3) pressing the pressure switch (3), stopping air supply from the air outlet of the pressure switching electromagnetic valve (20), further stopping air supply from the control port of the relay valve (27), and exhausting air from the air outlet of the relay valve (27) through the air pipe by the first bearing air bag (25) and the second bearing air bag (29).
2. The axle secondary lifting device for medium and heavy duty vehicles according to claim 1, wherein the low pressure regulating valve (12) and the high pressure regulating valve (16) are both pressure regulating valves with reverse flow.
3. The axle secondary lifting device for the medium and heavy duty vehicle is characterized in that a first bearing air bag (25) and a second bearing air bag (29) are provided with air pressure sensors, and the air pressure sensors are electrically connected with indicator lights arranged on the high-low voltage change-over switch (1).
4. An axle lifting method of the axle secondary lifting device of the medium and heavy duty car according to claim 3,
when the high-low voltage change-over switch (1), the lifting switch (2) and the pressure change-over switch (3) are all switched off, the first lifting air bag (14) and the second lifting air bag (19) are inflated, the first bearing air bag (25) and the second bearing air bag (29) are in an exhaust state, and the liftable axle is in an idle-load lifting state;
when the lifting switch (2) is closed, the first lifting air bag (14) and the second lifting air bag (19) are exhausted, the first bearing air bag (25) and the second bearing air bag (29) are in an inflated state, and the lifting axle can be in a full-load bearing state;
when the liftable axle is in a full-load bearing state, the high-low pressure change-over switch (1) is pressed, the air outlet A of the high-low pressure electromagnetic valve (9) is ventilated, and low air pressure is adjusted through the low-pressure adjusting valve (12) to supply air to the air source opening of the relay valve (27); pressing down the pressure switch (3), cutting off air at an air outlet of the pressure switching electromagnetic valve (20), further cutting off air at a control port of the relay valve (27), and exhausting air at an exhaust port of the relay valve (27) through an air pipe by the bearing air bag I (25) and the bearing air bag II (29);
when the pressure values in the first bearing air bag (25) and the second bearing air bag (29) reach the numerical value required by the air pressure sensor, the indicator lamp on the high-low pressure change-over switch (1) flickers to give an early warning prompt, at the moment, the pressure switch (3) is pressed again to rebound, the air outlet of the pressure change-over electromagnetic valve (20) is ventilated, the pressure is regulated through the high-pressure regulating valve (16), the control port of the relay valve (27) is ventilated, the ventilation of the air outlet of the relay valve (27) is realized, the low-pressure air pressure is filled into the first bearing air bag (25) and the second bearing air bag (29), and the light-load state of the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029797.6A CN108189636B (en) | 2018-01-12 | 2018-01-12 | Secondary lifting device for axle of medium and heavy truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029797.6A CN108189636B (en) | 2018-01-12 | 2018-01-12 | Secondary lifting device for axle of medium and heavy truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108189636A CN108189636A (en) | 2018-06-22 |
| CN108189636B true CN108189636B (en) | 2021-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810029797.6A Active CN108189636B (en) | 2018-01-12 | 2018-01-12 | Secondary lifting device for axle of medium and heavy truck |
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| CN (1) | CN108189636B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002519231A (en) * | 1998-06-30 | 2002-07-02 | アライド・シグナル・インコーポレーテツド | Improved traction and suspension control |
| CN2837129Y (en) * | 2005-09-26 | 2006-11-15 | 东风汽车有限公司 | Floating bridge control system |
| KR20080023817A (en) * | 2006-09-12 | 2008-03-17 | 현대자동차주식회사 | Hils system for semi-active suspension |
| CN201172364Y (en) * | 2008-01-24 | 2008-12-31 | 一汽解放青岛汽车厂 | Electrical control device of air bag of air suspension follow-up bridge |
| EP2050596A1 (en) * | 2007-10-20 | 2009-04-22 | WABCO GmbH | Electronic air supply device |
| CN201544749U (en) * | 2009-11-25 | 2010-08-11 | 中通客车控股股份有限公司 | Axle lifting device |
| CN105034739A (en) * | 2015-06-29 | 2015-11-11 | 三环集团有限公司 | Air suspension control system for commercial vehicle |
| CN106627027A (en) * | 2016-11-18 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | Air suspension system with lifting function and control method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6523625B2 (en) * | 2000-12-20 | 2003-02-25 | Bendix Commercial Vehicle Systems Llc | 6×2 suspension control for automatic traction control |
-
2018
- 2018-01-12 CN CN201810029797.6A patent/CN108189636B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002519231A (en) * | 1998-06-30 | 2002-07-02 | アライド・シグナル・インコーポレーテツド | Improved traction and suspension control |
| CN2837129Y (en) * | 2005-09-26 | 2006-11-15 | 东风汽车有限公司 | Floating bridge control system |
| KR20080023817A (en) * | 2006-09-12 | 2008-03-17 | 현대자동차주식회사 | Hils system for semi-active suspension |
| EP2050596A1 (en) * | 2007-10-20 | 2009-04-22 | WABCO GmbH | Electronic air supply device |
| CN201172364Y (en) * | 2008-01-24 | 2008-12-31 | 一汽解放青岛汽车厂 | Electrical control device of air bag of air suspension follow-up bridge |
| CN201544749U (en) * | 2009-11-25 | 2010-08-11 | 中通客车控股股份有限公司 | Axle lifting device |
| CN105034739A (en) * | 2015-06-29 | 2015-11-11 | 三环集团有限公司 | Air suspension control system for commercial vehicle |
| CN106627027A (en) * | 2016-11-18 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | Air suspension system with lifting function and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN108189636A (en) | 2018-06-22 |
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