CN2837129Y - Floating bridge control system - Google Patents
Floating bridge control system Download PDFInfo
- Publication number
- CN2837129Y CN2837129Y CN 200520098216 CN200520098216U CN2837129Y CN 2837129 Y CN2837129 Y CN 2837129Y CN 200520098216 CN200520098216 CN 200520098216 CN 200520098216 U CN200520098216 U CN 200520098216U CN 2837129 Y CN2837129 Y CN 2837129Y
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- CN
- China
- Prior art keywords
- valve
- lifting
- carrying
- electromagnetic valve
- floating axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000001105 regulatory effect Effects 0.000 claims description 19
- 210000004712 air sac Anatomy 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
A floating bridge control system comprises an air source, an electromagnetic valve and an inflation mode control part consisting of a control button connected with the electromagnetic valve; an air bag exhaust part composed of a quick release valve and an electromagnetic valve shared with the inflation mode control part; the air pressure adjusting part is composed of a pressure adjusting valve and a relay valve; the improvement point is that: the electromagnetic valve is a double-electric-control electromagnetic reversing valve, and when the control system is powered off, the floating bridge can be kept in a state before the power is off. The electromagnetic valve of the system is provided with two coils, the state of the floating bridge is unchanged when the system is powered off, and the front and rear bridges are prevented from bearing too much load.
Description
Technical field
The utility model relates to a kind of control system, is the floating axle control system of autotruck specifically.
Background technology
Along with the development of communications and transportation cause, automobile carrying quality is increasing, the corresponding increase of carrying vehicle bridge number.In order to improve economy, the part vehicle bridge is designed relocatable form, and promptly at full load puts down carrying, promotes when unloaded.
The prior art control system is set lifting and carrying two states.Loaded state is referring to Fig. 4, electromagnetic valve 34 1 end belt coils one end band spring, and when control button 35 was closed, the coil of electromagnetic valve 34 was charged, and the coil-end of electromagnetic valve 34 is connected, 40 inflations of carrying air bag, Lifting air sac 39 venting; The lifting state is referring to Fig. 5, and when control button 35 disconnected, the coil of electromagnetic valve 34 did not have electric current, and electromagnetic valve 34 spring terminals are connected under action of the spring, Lifting air sac 39 inflations, 40 venting of carrying air bag; Simultaneously, be used to regulate the function that the pressure regulating valve 32 that carries gasbag pressure does not have the restriction maximum pressure.
The problem that prior art exists: when system is in loaded state, if system cut-off, when for example stopping, the spring terminal of electromagnetic valve will be connected, and system will become the lifting state, and the bridge carrying is bigger before and after causing; Simultaneously, too high because of pressure regulating valve does not have the function of restriction maximum pressure if misoperation causes carrying gasbag pressure, will make floating axle and carrying air bag overload cause bearing load and other bridge unreasonable distribution, the carrying air bag might lose efficacy.
Summary of the invention
Floating axle can only be in the problem of lifting state when cutting off the power supply for resolution system, floating axle kept the floating axle control system of original state when the utility model provided a kind of control system to cut off the power supply, simultaneously, control is too high because of the floating axle bearing load that maloperation causes, bearing load and other bridge unreasonable distribution, and the carrying airbag fails that therefore causes of prevention.
The utility model floating axle control system comprises: source of the gas reaches
Inflation mode control part: comprise two automatically controlled solenoid directional control valves and coupled control button, by handling lifting of selection floating axle or the carrying that control button makes electromagnetic valve, when control system was cut off the power supply, floating axle kept the preceding state of outage;
Air bags part: comprise rapid release valve and fill and inflate the public two automatically controlled solenoid directional control valve of mode control part, when the carrying air bag is in deflated state, gas in the carrying air bag is discharged in the atmosphere by rapid release valve, when Lifting air sac was in deflated state, the gas in the Lifting air sac was discharged in the atmosphere by electromagnetic valve;
Air pressure adjustment part: comprise pressure regulating valve and relay valve, by adjusting air pressure in the pressure regulating valve adjustment carrying air bag with pressure limiting function;
On function, the utility model is described further below.
Electromagnetic valve has two coils, handles control button, can select certain charged in two coils of solenoid directional control valve, makes system be in lifting or loaded state; During system cut-off, floating axle will keep the state before the outage.
By the air pressure in the pressure regulating valve adjustable carrier air bag, thereby regulate its bearing load, pressure regulating valve inside has the pressure limiting function, regulates pressure regulating valve in any case, and its output pressure can not surpass the voltage limiting value of setting.
In sum, the beneficial effects of the utility model are as follows:
The utility model electromagnetic valve has two coils, and the floating axle state is constant during system cut-off, and the bridge carrying is excessive before and after avoiding.
Pressure regulating valve has the pressure limiting function, prevents that the carrying gasbag pressure is too high, the floating axle overload because of misoperation makes, bearing load and other bridge unreasonable distribution, and avoid carrying the inefficacy that therefore air bag causes.
Description of drawings
Fig. 1 is a floating axle control system loaded state schematic diagram;
Fig. 2 is a floating axle control system lifting state schematic diagram;
Fig. 3 is the pressure regulating valve performance diagram;
Fig. 4 is a prior art control system loaded state schematic diagram;
Fig. 5 is a prior art control system lifting state schematic diagram.
The specific embodiment
As shown in Figure 1, the floating axle control system comprises: air receiver 1, inflation mode control part 20, left and right carrying air bags part 21a, 21b, left and right Lifting air sac 12a, 12b discharge portion, carrying air pressure adjustment part 22.
Inflation mode control part 20: comprise two automatically controlled solenoid directional control valves 3, with the control button 4 that two automatically controlled solenoid directional control valves 3 link to each other, left and right carrying air bags part 21a, 21b, reverse gear switch 13, long enclosed relay 6, lifting indicator lamp 14.
Two automatically controlled solenoid directional control valves 3 have carrying coil 3a, lifting coil 3b, admission port 3c, exhausr port 3d, bearing interface 3e, lifting interface 3f.Carrying coil 3a links to each other with relay 6 and control button 4; Lifting coil 3b links to each other with control button 4, links to each other with reverse gear switch 13 by diode 15, and simultaneously, lifting coil 3b also is connected with lifting indicator lamp 14; Bearing interface 3e communicates with relay valve 2; Lifting interface 3f communicates with left and right Lifting air sac 12a, 12b;
Control button 4 has two to be communicated with end, i.e. carrying is communicated with end 24 and lifting is communicated with end 23;
Left and right carrying air bags part 21a, 21b comprise left and right rapid release valve 9a, 9b and left and right sides safety valve 10a, 10b;
Relay 6 links to each other with the carrying coil 3a and the reverse gear switch 13 of two automatically controlled solenoid directional control valves 3;
Diode 15 is connected between the lifting coil 3b of reverse gear switch 13 and two automatically controlled solenoid directional control valves 3, and electric current can flow to electromagnetic valve 3 through diode 15;
Carrying air pressure adjustment part 22: comprise pressure regulating valve 7, and relay valve 2.Described pressure regulating valve 7 has the function of restriction maximum pressure.
On function, present embodiment is described further below.
Referring to Fig. 1, when control button 4 is positioned at carrying and is communicated with end 24, the carrying coil 3a of two automatically controlled solenoid directional control valves 3 is charged, the bearing interface 3e and the admission port 3c of two automatically controlled solenoid directional control valves 3 connect, the lifting interface 3f and the exhausr port 3d of two automatically controlled solenoid directional control valves 3 connect, high pressure gas in the air receiver 1 are by the admission port 3c of two automatically controlled solenoid directional control valves 3, bearing interface 3e, relay valve 2, a left side, right rapid release valve 9a, carrying air bag 11a about 9b enters, 11b, simultaneously, a left side, right Lifting air sac 12a, gas among the 12b is discharged by the exhausr port 3d of two automatically controlled solenoid directional control valves 3, the floating axle carrying.
Referring to Fig. 2, when control button 4 is positioned at lifting and is communicated with end 23, the lifting coil 3b of two automatically controlled solenoid directional control valves 3 is charged, the lifting interface 3f and the admission port 3c of two automatically controlled solenoid directional control valves 3 connect, the bearing interface 3e and the exhausr port 3d of two automatically controlled solenoid directional control valves 3 connect, high pressure gas in the air receiver 1 are by the admission port 3c of two automatically controlled solenoid directional control valves 3, lifting interface 3f, enter left and right sides Lifting air sac 12a, 12b, simultaneously, gas among left and right carrying air bag 11a, the 11b is discharged by left and right rapid release valve 9a, 9b, the floating axle lifting.
During system cut-off, control system can make the state before floating axle keeps outage, and promptly loaded state still is in loaded state behind system cut-off, and the lifting state still is in the lifting state behind system cut-off.
During reversing, if 3a is charged for the carrying coil, system is in the carrying state of a control, the closure switch 13 that reverses gear, normally closed relay 6 is connected, and the ground terminal of the carrying coil 3a of two automatically controlled solenoid directional control valves 3 disconnects, simultaneously, the electric current reverse gear switch 13, diode 15 of flowing through arrives the lifting coil 3b of two automatically controlled solenoid directional control valves 3, and system becomes " lifting " state, floating axle lifting; When disconnecting reverse gear switch 13, the lifting coil 3b of two automatically controlled solenoid directional control valves 3 outage, normally closed relay 6 is connected, and the carrying coil 3a of two automatically controlled solenoid directional control valves 3 is charged, the automatic recovering bearing state of system.
By the air pressure of the left and right carrying air bag of pressure regulating valve 7 scalable 11a, 11b, thereby regulate its bearing load, pressure regulating valve 7 has the pressure limiting function, and its characteristic curve is seen Fig. 3, regulates pressure regulating valve in any case, and its output pressure can not surpass the voltage limiting value of setting among the figure.
Electric current can only be by reverse gear switch 13 way flow through diode 15, and flow through diode 15 of electric current impassabitity control button 4 arrives relays 6.
Air-pressure gauge 8 can show the air pressure that carries air bag 11.
In sum, the beneficial effect of present embodiment is as follows:
The two automatically controlled solenoid directional control valves 3 of present embodiment have carrying coil 3a and lifting coil 3b, can make floating axle keep the preceding state of outage during system cut-off.
Pressure regulating valve 7 has the pressure limiting function, prevents because of misoperation makes left and right carrying air bag 11a, 11b hypertonia floating axle overload, bearing load and other bridge unreasonable distribution, and the inefficacy of avoiding left and right carrying air bag 11a, 11b therefore to cause.
Diode 15 restriction current directions, when control button 4 lifting ends 23 were connected, relay 6 was not charged, avoids relay 6 to be in electriferous state for a long time.
Adopt normally closed relay 6, floating axle is in the lifting state when reversing gear, and avoids the floating axle wheel to be stuck and damages.
Claims (2)
1, a kind of floating axle control system comprises: source of the gas reaches
Inflation mode control part: comprise electromagnetic valve and coupled control button, select floating axle lifting or carrying by handling control button;
Air bags part: comprise that rapid release valve reaches and the public electromagnetic valve of inflation mode control part, when the carrying air bag is in deflated state, gas in the carrying air bag is discharged in the atmosphere by rapid release valve, and when Lifting air sac was in deflated state, the gas in the Lifting air sac was discharged in the atmosphere by electromagnetic valve;
Air pressure adjustment part: comprise pressure regulating valve and relay valve, by adjusting air pressure in the pressure regulating valve adjustment carrying air bag;
It is characterized in that:
Described electromagnetic valve is two automatically controlled solenoid directional control valves, when control system is cut off the power supply, can make floating axle keep the preceding state of outage.
2, floating axle control system according to claim 1 is characterized in that: described pressure regulating valve is the pressure regulating valve with pressure limiting function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520098216 CN2837129Y (en) | 2005-09-26 | 2005-09-26 | Floating bridge control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520098216 CN2837129Y (en) | 2005-09-26 | 2005-09-26 | Floating bridge control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2837129Y true CN2837129Y (en) | 2006-11-15 |
Family
ID=37391611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520098216 Expired - Lifetime CN2837129Y (en) | 2005-09-26 | 2005-09-26 | Floating bridge control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2837129Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244685B (en) * | 2008-01-24 | 2010-06-09 | 一汽解放青岛汽车厂 | Electric control device of air chamber for air suspension follow-up bridge and control method |
| WO2015139299A1 (en) * | 2014-03-21 | 2015-09-24 | 吴江川 | Wheel lifting apparatus and pipeline assembly for control thereof |
| CN105034739A (en) * | 2015-06-29 | 2015-11-11 | 三环集团有限公司 | Air suspension control system for commercial vehicle |
| CN105691141A (en) * | 2015-12-31 | 2016-06-22 | 芜湖联合新能源重卡产业技术研究院有限公司 | Electrical joint control braking system for lifting axle of commercial vehicle |
| CN108189636A (en) * | 2018-01-12 | 2018-06-22 | 中国重汽集团济南动力有限公司 | A kind of medium-heavy automobile vehicle bridge secondary lifting device |
-
2005
- 2005-09-26 CN CN 200520098216 patent/CN2837129Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244685B (en) * | 2008-01-24 | 2010-06-09 | 一汽解放青岛汽车厂 | Electric control device of air chamber for air suspension follow-up bridge and control method |
| WO2015139299A1 (en) * | 2014-03-21 | 2015-09-24 | 吴江川 | Wheel lifting apparatus and pipeline assembly for control thereof |
| CN105034739A (en) * | 2015-06-29 | 2015-11-11 | 三环集团有限公司 | Air suspension control system for commercial vehicle |
| CN105691141A (en) * | 2015-12-31 | 2016-06-22 | 芜湖联合新能源重卡产业技术研究院有限公司 | Electrical joint control braking system for lifting axle of commercial vehicle |
| CN105691141B (en) * | 2015-12-31 | 2017-12-26 | 芜湖联合新能源重卡产业技术研究院有限公司 | It is a kind of electrically to jointly control brakes for commercial car lift bridge |
| CN108189636A (en) * | 2018-01-12 | 2018-06-22 | 中国重汽集团济南动力有限公司 | A kind of medium-heavy automobile vehicle bridge secondary lifting device |
| CN108189636B (en) * | 2018-01-12 | 2021-01-22 | 中国重汽集团济南动力有限公司 | Secondary lifting device for axle of medium and heavy truck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGFENG COMMERCIAL VEHICLE CO., LTD. Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD. Effective date: 20130912 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130912 Address after: 442001 Shiyan City, Hubei province city Zhangwan District Road No. 2 Patentee after: DONGFENG TRUCKS Co.,Ltd. Address before: Shiyan City, Hubei province 442001 City Road No. 9 Patentee before: DONGFENG MOTER Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20061115 |
|
| EXPY | Termination of patent right or utility model |