CN102954206A - Integrated pneumatic shifting operation system - Google Patents
Integrated pneumatic shifting operation system Download PDFInfo
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- CN102954206A CN102954206A CN2012105048686A CN201210504868A CN102954206A CN 102954206 A CN102954206 A CN 102954206A CN 2012105048686 A CN2012105048686 A CN 2012105048686A CN 201210504868 A CN201210504868 A CN 201210504868A CN 102954206 A CN102954206 A CN 102954206A
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Abstract
The invention provides an integrated pneumatic shifting operation system, comprising an air filtering adjuster, an air way control valve, a handle valve, a double pneumatic single H valve, a speed changer cylinder and two O-rings, wherein the double pneumatic single H valve is locked on the speed changer cylinder through screws, the low shift control end outlet of the double pneumatic single H valve is hermetically connected with the low shift air inlet end of the speed changer cylinder through one O-ring, and the high shift control end outlet of the double pneumatic single H valve is hermetically connected with the high shift air inlet of the speed changer cylinder through the other O-ring. According to the integrated pneumatic shifting operation system, the structure is simple and compact, the operation is easy, the fault rate is reduced, and the service life is longer.
Description
Technical field
The present invention relates to a kind of vehicle shift system, be specifically related to a kind of vehicle unit loading type Pneumatic shift operating system.
Background technique
Along with constantly standardization of highway in China carrier management, it is efficient, the epoch of lean running arrive, this requires industry to conduct oneself with dignity by Lifting Convey efficient, reduction vehicle body, and the measures such as fuel consumption level of the reduction unit volume of goods transported realize the higher level of profitability.And the heavy jig of highway freight customer requirements standby high-speed overload, lightweight, the attribute such as fuel economy is good, the rate of attendance is high, product demand is gradually to high-endization transfer.Estimate, the heavily card product that carries high-power, more gear gearboxes will more and more become main flow, such as 16 gears, 20 gears, 24 shift transmissions.
Existing shift control system by the gas path control valve of a control two-position five-way list H valve of air cylinder of speed changer and bi-bit bi-pass, and the shift handle valve of two-position three way etc. forms to realize what secondary box of gearbox was shifted gears, although this Pneumatic shift operating system connects simple, but necessarily require the handle valve preliminary election of user elder generation, gear shift operation again, if the user operates first gearshift, again handle valve preliminary election air cylinder of speed changer inside can occur and collaborate, and causes speed changer high to low gear switching failure.This cover system can not make piston remain under the thrust of high pressure air on high gear or the low gear position owing to after speed changer changes to gear, not having high pressure air in the air cylinder of speed changer, therefore so that speed changer easy off-gear in the Vehicle Driving Cycle process.Although can by at air cylinder of speed changer and auxiliary box synchronizer band self-locking device, so that speed changer structure is complicated, increase manufacture cost; Original handle valve all is the two-position three way valve arrangement, be used for controlling an end gas control end of single H valve, because this valve is without memory function, so after air cylinder of speed changer is entering high gear district or low gear district, because gas path control valve can disconnect source of the gas, air cylinder of speed changer loses high pressure air and can not stop in high gear or low gear position, existing technology is to increase self-locking mechanism by the declutch shift shaft at air cylinder of speed changer, although also can reach the effect of self-locking, but can make speed changer structure complicated, increase manufacture cost.Therefore, there are some technical problems anxious to be resolved on the Pneumatic shift operating system of prior art.
Summary of the invention
For defects, the purpose of this invention is to provide a kind of simple in structure and working life of improving product, reduce trouble is with the technical problem of the Pneumatic shift operating system that solves prior art.
For achieving the above object, the present invention has adopted following technological scheme:
A kind of unit loading type Pneumatic shift operating system, comprise: an air filtering regulator, a double air controlled list H valve, a gas path control valve, one handle valve and an air cylinder of speed changer, annexation wherein is: the input end of described air filtering regulator links to each other with the car load source of the gas; Described air filtering regulator connects respectively described double air controlled list H valve and described gas path control valve; Described gas path control valve is connected with described handle valve; Described handle valve is connected with described double air controlled list H valve; Described double air controlled list H valve is connected with described air cylinder of speed changer; Also comprise in addition two O type circles, described double air controlled list H valve is paid on described air cylinder of speed changer with screw lock, the low gear control end outlet of described double air controlled list H valve is tightly connected with described O type circle with the low gear suction port of described air cylinder of speed changer, and the high gear control end outlet of described double air controlled list H valve is tightly connected with described O type circle with the high gear suction port of described air cylinder of speed changer.
According to the described unit loading type Pneumatic shift operating system of the embodiment of the invention, described double air controlled list H valve comprises: a valve body, a spool, two pistons, two V-type circles and a self-locking device; Wherein: described spool is assemblied among the described valve body; A piston is respectively assembled at the two ends of described spool, and on described piston sheathed described V-type circle; Described self-locking device comprises a steel ball, a spring and a Cock screw, described Cock screw lock is paid in the screw hole of described valve body and is vertical with described spool, one end of described spring is connected with described Cock screw, the other end of described spring is connected with described steel ball, offer two grooves that are parallel to spool corresponding to described steel ball on the described spool, described steel ball is mobile link between two grooves.
According to the described unit loading type Pneumatic shift operating system of the embodiment of the invention, described air cylinder of speed changer comprises: cylinder body, the high to low gear piston, limiting stopper and declutch shift shaft, wherein: described limiting stopper be connected the high to low gear piston and be set in parallel in successively described cylinder interior and being connected with described declutch shift shaft successively, the cavity of described air cylinder of speed changer is divided into two cavitys by described high to low gear piston, the cavity of described limiting stopper one side is the low gear chamber, the cavity of an other side is the high gear chamber, described low gear suction port communicates with described low gear chamber, and described high gear suction port communicates with described high gear chamber.
According to the described unit loading type Pneumatic shift operating system of the embodiment of the invention, described handle valve is two-position five-way formula shift handle valve.
Since adopted above technical characteristics, so that the present invention has following advantage and good effect than prior art:
The first, project organization of the present invention is simply compact, and two outlets of double air controlled list H valve directly adopt the board-like O of adding type circle to link to each other with the interface of air cylinder of speed changer, have saved 4 jointings and tracheae, reduced leakage point, so that connection is more reliable, reduce production hour, saved cost;
The second, Pneumatic shift operating system of the present invention, thoroughly solved the problem that air cylinder of speed changer that the user may occur occurring not according to predetermined operation is collaborated, also avoided simultaneously the off-gear problem of auxiliary box synchronizer, and air cylinder of speed changer and synchronizer do not need to be designed to the mechanism arrangement with self-locking, reduces speed changer manufacture cost and longer service life;
Three, air cylinder of speed changer of the present invention does not carry self-locking mechanism, and declutch shift shaft is not subject to lateral force in movement process, reduced the operational failure rates such as cylinder leakage tester, scuffing of cylinder bore.
Certainly, implement any one specific embodiment of content of the present invention, might not have simultaneously above whole technique effect.
Description of drawings
Fig. 1 is structure gas circuit schematic diagram of the present invention;
Fig. 2 is double air controlled list H valve arrangement schematic diagram of the present invention;
Fig. 3 is self-locking device structural representation of the present invention;
Fig. 4 is another structure gas circuit schematic diagram of the present invention;
Fig. 5 is double air controlled list H valve of the present invention and air cylinder of speed changer connection diagram;
Fig. 6 is the cutaway view of air cylinder of speed changer.
Embodiment
For ease of understanding, preferred embodiment of the present invention is done being described in further detail below in conjunction with accompanying drawing.
Please refer to Fig. 1 and Fig. 2, a kind of Pneumatic shift operating system of vehicle comprises: air filtering regulator 10, double air controlled list H valve 20, gas path control valve 30, handle valve 40 and air cylinder of speed changer 50, and annexation wherein is:
The input end of air filtering regulator 10 links to each other with the car load source of the gas, and accepting pressurized air air pressure at the input end of air filtering regulator 10 is 7-8Bar, and the output terminal output pressure of air filtering regulator 10 is 5.5-6Bar; In addition,
The output terminal of air filtering regulator 10 connects respectively the first input end 213 of double air controlled list H valve 20 and the input end of gas path control valve 30,
And the output terminal of gas path control valve 30 is connected with the input end of handle valve 40, forms gas circuit A;
The first output terminal of handle valve 40 connects the first suction port 211 of double air controlled list H valve 20, forms gas circuit B;
The second output terminal of handle valve 40 connects the second suction port 212 of double air controlled list H valve 20, forms gas circuit C;
The low gear control end of double air controlled list H valve 20 outlet 214 is connected with the low gear suction port 55 of air cylinder of speed changer 50,
The high gear control end of double air controlled list H valve 20 outlet 215 is connected with the high gear suction port 56 of air cylinder of speed changer 50.
In addition, please refer to Fig. 2, itself inventing utilizes double air controlled list H valve itself with the principle of self-locking, and on spool, increase again self-locking mechanism, reach the protection of double self locking, under this design, described double air controlled list H valve 20 comprises: a valve body 21, a spool 22, two pistons 23, two V-type circles 24 and self-locking device 25, in the present embodiment, the quantity of self-locking device 25 is two, but can not be used for limiting this patent; Wherein the annexation of part is as follows: described spool 22 is assemblied among the described valve body 21;
A piston 23 is respectively assembled at the two ends of described spool 22, and on described piston 23 sheathed described V-type circle 24;
Please please refer to simultaneously Fig. 3, each self-locking device 25 comprises a steel ball 251, a spring 252 and a Cock screw 253,
Described Cock screw 253 locks are paid in the screw hole of described valve body 21 and are vertical with described spool 22,
One end of described spring 252 is connected with described Cock screw 253,
The other end of described spring 252 is connected with described steel ball 251,
Offer two grooves 221 that are parallel to spool 22 corresponding to described steel ball 251 on the described spool 22, described steel ball 251 is at 221 mobile links of two grooves, in the present embodiment, the quantity of self-locking device 25 is two, so the groove 221 that corresponding steel ball 251 is offered is two row altogether, whenever show two grooves 221.Be noted that at this, double air controlled list H valve 20 is comprised of above part, also offering some pores in addition on the valve body 21 of double air controlled list H valve, is respectively the first suction port 211, the second suction port 212, first input end 213, low gear control end outlet 214, high gear control end outlet 215, low gear control leakage port 216 and high gear control leakage port 217.
The first suction port 211 and the second suction port 212 are separately positioned on the valve body 21 at spool 22 two ends, when high pressure air is come in from the first suction port 211, promoting spool 22 moves to right, and when high pressure air is come in from the second suction port 212, promotion spool 22 left direction moves, at this moment, piston 23 and V-type circle 24 have been brought into play airtight effect, high pressure air can disorderly not gone here and there, when spool 22 move left and right, steel ball 251 221 li of grooves is subjected to the pressure of spool 22 to leave groove 221, mobile between two grooves 221, after arriving another groove 221, spool 22 is subject to spacing no longer mobile, and steel ball 251 is entered in the groove 221 by the pressure of spring 252, not greater than the strength of spring 252 time, steel ball 251 is withstood in the groove 221 by the pressure of spring 252, can not move so that spool 22 is fixed in the valve body 21, reaches the function of locking.
When high pressure air is come in from the first suction port 211, promote spool 22 and move to right, this moment, first input end 213 was connected ventilation with high gear control end outlet 215, and the low gear control end exports 214 and is connected leakage port 216 connections with low gear and ventilates; When high pressure air is come in from the second suction port 212, promote spool 22 left direction move, this moment, first input end 213 was connected ventilation with low gear control end outlet 214, and the high gear control end exports 215 and is connected leakage port 217 connections with high gear and ventilates.
Then, please refer to Fig. 4 and Fig. 5, another kind of embodiment of the present invention, two outlets of double air controlled list H valve 20 directly adopt the board-like O of adding type circle 57 to link to each other with the interface of air cylinder of speed changer 50, described double air controlled list H valve 20 is paid on described air cylinder of speed changer 50 with screw lock, to pay with three screw locks in the present embodiment, but can not be used for limiting this patent, the low gear control end outlet 214 of described double air controlled list H valve 20 is tightly connected with O type circle 57 with the low gear suction port 55 of described air cylinder of speed changer 50, and the high gear control end outlet 215 of described double air controlled list H valve 20 is tightly connected with O type circle 57 with the high gear suction port 56 of described air cylinder of speed changer 50.
In addition, please refer to Fig. 6, described air cylinder of speed changer 50 comprises: cylinder body 51, high to low gear piston 52, limiting stopper 53, declutch shift shaft 54, low gear suction port 55 and high gear suction port 56, wherein: to be set in parallel in successively described cylinder body 51 inner and be connected with described declutch shift shaft 54 successively with being connected high to low gear piston 52 for described limiting stopper 53, the cavity of described air cylinder of speed changer 50 is divided into two cavitys by described high to low gear piston 52, the cavity of described limiting stopper 53 1 sides is the low gear chamber, the cavity of an other side is the high gear chamber, described low gear suction port 55 communicates with described low gear chamber, and described high gear suction port 56 communicates with described high gear chamber.Described limiting stopper 53 is to limit the limit that high to low gear piston 52 is advanced left, guarantees that low gear suction port 55 communicates with low gear chamber air-flow.
Comprehensive, when high pressure air is come in from the first suction port 211, promoting spool 22 moves to right, this moment, first input end 213 was connected ventilation with high gear control end outlet 215, high pressure air enters from the high gear suction port 56 on the air cylinder of speed changer 50, promotes high to low gear piston 52 to left movement, drives declutch shift shaft 54 and changes to high gear to left movement, and low gear control end outlet this moment 214 be connected leakage port 216 and is connected and ventilate with low gear, is discharged into thus the atmosphere from low gear chamber gas out; And when high pressure air is come in from the second suction port 212, promotion spool 22 left direction moves, this moment, first input end 213 was connected ventilation with low gear control end outlet 214, high pressure air enters from the low gear suction port 55 on the air cylinder of speed changer 50, promoting high to low gear piston 52 moves right, drive declutch shift shaft 54 and move right and change to low gear, and high gear control end outlet this moment 215 be connected leakage port 217 and connected and ventilate with high gear, be discharged into the atmosphere thus from high gear chamber gas out.
What will say in addition is that the handle valve 40 of the present invention's design is two-position five-way formula shift handle valve 40, is used for controlling double air controlled list H valve 20 and then controls air cylinder of speed changer 50, thereby so that air cylinder of speed changer 50 does not need self-locking device, reduce the fabricating cost of speed changer.
The present embodiment carries out work in the following manner:
In main gas circuit, behind the 7-8Bar high-pressure air process air filtering regulator 10 from the car load source of the gas, stream pressure drops to about 5.5-6Bar.
When high gear control end outlet 215 was opened, high pressure air will enter from the high gear suction port 56 on the air cylinder of speed changer 50, promotes high to low gear piston 52 to left movement, drove declutch shift shaft 54 and changed to high gear to left movement;
When low gear control end outlet 214 was opened, high pressure air will enter from the low gear suction port 55 on the air cylinder of speed changer 50, promotes high to low gear piston 52 and moves right, and drove declutch shift shaft 54 and moved right and change to low gear.
In the control gas circuit, handle valve 40 is that 40, two gas ports of a two-position five-way formula shift handle valve link to each other with two control gas interfaces of double air controlled list H valve 20, is responsible for respectively opening the outlet 215 of high gear control end and the low gear control end outlet 214 of double air controlled list H valve 20.
When gas path control valve 30 is in on-state: this moment, high voltage control gas was come handle valve 40 through gas circuit A, and handle valve 40 is controlled respectively opening or closing of double air controlled list H valve 20 high and low gear control end outlets 214 by gas circuit B and C; When gas circuit B ventilated, high gear control end outlet 215 was opened, and the high pressure air of coming through air filtering regulator 10 will promote high to low gear piston 52 to left movement from the high gear chamber that high gear suction port 56 enters air cylinder of speed changer 50, drive declutch shift shaft 54 to left movement.Otherwise, when gas circuit C ventilates, low gear control end outlet 214 is opened, and the high pressure air of coming through air filtering regulator 10 will promote high to low gear piston 52 from the low gear chamber that low gear suction port 55 enters air cylinder of speed changer 50 and move right, and drive declutch shift shaft 54 and move right.One end of declutch shift shaft 54 connects air cylinder of speed changer 50, and an other end of declutch shift shaft 54 connects the auxiliary box synchronizer shift fork, is used for adjusting transmission gear.
Design of the present invention is the deficiency that exists for prior art, a kind of Pneumatic shift operating system is provided, gas circuit is divided into main gas circuit and control gas circuit, main gas circuit is controlled air cylinder of speed changer 50 by a double air controlled list H valve 20 with self-locking mechanism, the control gas circuit is by the gas path control valve 30 of two-position three way, outlet connects the handle valve 40 of two-position five-way, and 40 liang of outlets of handle valve connect respectively the gas control end of double air controlled list H valve 20.Thoroughly solved the problem that air cylinder of speed changer 50 that the user may occur occurring not according to predetermined operation is collaborated, also avoided simultaneously the off-gear problem of auxiliary box synchronizer, and air cylinder of speed changer 50 and synchronizer do not need to be designed to the mechanism arrangement with self-locking, reduces the speed changer manufacture cost; Utilize double air controlled list H valve 20 itself with the principle of self-locking, and on spool 22, increase again self-locking mechanism, reach the protection of double self locking.
In addition, by directly adopting the board-like O of adding type circle 57 to link to each other with the interface of air cylinder of speed changer 50 20 liang of outlets of double air controlled list H valve, by 3 screws double air controlled list H valve 20 is installed in and has saved 4 jointings and tracheae on the air cylinder of speed changer 50, reduced leakage point, so that connect more reliable, shortened the response time of air cylinder of speed changer 50 actions, improved the gearshift time of speed-changer synchronizer, effectively reduce the fault of synchronizer, priorly reduced assembling, and maintenance is very convenient, and cost reduces greatly; Also have, the invention provides a kind of two-position five-way formula shift handle, be used for controlling double air controlled list H valve 20 and control air cylinder of speed changer 50, thereby so that air cylinder of speed changer 50 does not need self-locking device, reduce the fabricating cost of speed changer.
Since adopted above technical characteristics, so that the present invention has following advantage and good effect than prior art:
The first, project organization of the present invention is simply compact, and two outlets of double air controlled list H valve directly adopt the board-like O of adding type circle to link to each other with the interface of air cylinder of speed changer, have saved 4 jointings and tracheae, reduced leakage point, so that connection is more reliable, reduce production hour, saved cost;
The second, Pneumatic shift operating system of the present invention, thoroughly solved the problem that air cylinder of speed changer that the user may occur occurring not according to predetermined operation is collaborated, also avoided simultaneously the off-gear problem of auxiliary box synchronizer, and air cylinder of speed changer and synchronizer do not need to be designed to the mechanism arrangement with self-locking, reduces speed changer manufacture cost and longer service life;
Three, air cylinder of speed changer of the present invention does not carry self-locking mechanism, and declutch shift shaft is not subject to lateral force in movement process, reduced the operational failure rates such as cylinder leakage tester, scuffing of cylinder bore.
Certainly, implement any one specific embodiment of content of the present invention, might not have simultaneously above whole technique effect.
The invention preferred embodiment just is used for helping to set forth the present invention.Preferred embodiment does not have all details of detailed descriptionthe, does not limit this invention yet and only is described embodiment.Obviously, according to the content of this specification, can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to explain better principle of the present invention and practical application, thereby the technical field technician can utilize the present invention well under making.The present invention only is subjected to the restriction of claims and four corner and equivalent.Above disclosed only be preferred embodiment of the present invention; but be not to limit itself; anyly have the knack of those skilled in the art in the situation that without prejudice to spiritual connotation of the present invention, the equalization of doing changes and changes, and all should drop in protection scope of the present invention.
Claims (4)
1. unit loading type Pneumatic shift operating system, it is characterized in that, comprise: an air filtering regulator, a double air controlled list H valve, a gas path control valve, one handle valve and an air cylinder of speed changer, annexation wherein is: the input end of described air filtering regulator links to each other with the car load source of the gas; Described air filtering regulator connects respectively described double air controlled list H valve and described gas path control valve; Described gas path control valve is connected with described handle valve; Described handle valve is connected with described double air controlled list H valve; Described double air controlled list H valve is connected with described air cylinder of speed changer; Also comprise in addition two O type circles, described double air controlled list H valve is paid on described air cylinder of speed changer with screw lock, the low gear control end outlet of described double air controlled list H valve is tightly connected with described O type circle with the low gear suction port of described air cylinder of speed changer, and the high gear control end outlet of described double air controlled list H valve is tightly connected with described O type circle with the high gear suction port of described air cylinder of speed changer.
2. unit loading type Pneumatic shift operating system as claimed in claim 1 is characterized in that, described double air controlled list H valve comprises: a valve body, a spool, two pistons, two V-type circles and a self-locking device; Wherein: described spool is assemblied among the described valve body;
A piston is respectively assembled at the two ends of described spool, and on described piston sheathed described V-type circle;
Described self-locking device comprises a steel ball, a spring and a Cock screw,
Described Cock screw lock is paid in the screw hole of described valve body and is vertical with described spool,
One end of described spring is connected with described Cock screw,
The other end of described spring is connected with described steel ball,
Offer two grooves that are parallel to spool corresponding to described steel ball on the described spool, described steel ball is mobile link between two grooves.
3. unit loading type Pneumatic shift operating system as claimed in claim 2, it is characterized in that, described air cylinder of speed changer comprises: cylinder body, the high to low gear piston, limiting stopper and declutch shift shaft, wherein: described limiting stopper be connected the high to low gear piston and be set in parallel in successively described cylinder interior and being connected with described declutch shift shaft successively, the cavity of described air cylinder of speed changer is divided into two cavitys by described high to low gear piston, the cavity of described limiting stopper one side is the low gear chamber, the cavity of an other side is the high gear chamber, described low gear suction port communicates with described low gear chamber, and described high gear suction port communicates with described high gear chamber.
4. unit loading type Pneumatic shift operating system as claimed in claim 3 is characterized in that, described handle valve is two-position five-way formula shift handle valve.
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| CN201210504868.6A CN102954206B (en) | 2012-12-03 | 2012-12-03 | Packaging type Pneumatic shift operating system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104832638A (en) * | 2015-05-12 | 2015-08-12 | 陕西法士特汽车传动集团有限责任公司 | System and method for high-low gear conversion protection of transmission with auxiliary box |
| CN106051139A (en) * | 2016-08-12 | 2016-10-26 | 中国第汽车股份有限公司 | Pneumatic gear shifting control system assembly for auxiliary box of multi-gear transmission |
| CN110296232A (en) * | 2019-05-31 | 2019-10-01 | 陕西法士特齿轮有限责任公司 | A kind of list H gas circuit |
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| CN202252113U (en) * | 2011-09-06 | 2012-05-30 | 浙江科力车辆控制系统有限公司 | Novel double-H valve for transmission case of commercial vehicle |
| CN202251915U (en) * | 2011-09-20 | 2012-05-30 | 东风汽车有限公司 | AMT auxiliary box gear shifting cylinder assembly |
| CN202971867U (en) * | 2012-12-03 | 2013-06-05 | 浙江亿日气动科技有限公司 | Pneumatic gearshift operating system of transmission |
| CN202971866U (en) * | 2012-12-03 | 2013-06-05 | 浙江亿日气动科技有限公司 | Assembled pneumatic shifting operation system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832638A (en) * | 2015-05-12 | 2015-08-12 | 陕西法士特汽车传动集团有限责任公司 | System and method for high-low gear conversion protection of transmission with auxiliary box |
| CN106051139A (en) * | 2016-08-12 | 2016-10-26 | 中国第汽车股份有限公司 | Pneumatic gear shifting control system assembly for auxiliary box of multi-gear transmission |
| CN110296232A (en) * | 2019-05-31 | 2019-10-01 | 陕西法士特齿轮有限责任公司 | A kind of list H gas circuit |
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