CN204852305U - Two H of commercial car control odd -side and just keep off conversion protection system - Google Patents
Two H of commercial car control odd -side and just keep off conversion protection system Download PDFInfo
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- CN204852305U CN204852305U CN201520394399.6U CN201520394399U CN204852305U CN 204852305 U CN204852305 U CN 204852305U CN 201520394399 U CN201520394399 U CN 201520394399U CN 204852305 U CN204852305 U CN 204852305U
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Abstract
The utility model discloses a two H of commercial car control odd -side and just keep off conversion protection system, including the cylinder block and set up the piston in the cylinder block, cylinder block end -to -end connection gas circuit control valve, gas circuit control valve will be put in order under the control of solenoid valve during the car air supply lets in the terminal gaseous cavity that forms with the cylinder block of piston, and the piston is in the gas that lets in or the effect motion down of spring, make that the odd -side keeps off at the height, the speed of a motor vehicle is higher than the calibration value makes, prevent control in horizontal gear level keep off district's removal to low. The utility model discloses two H manipulation odd -side just keeps off conversion protection system and develops under the demand of guaranteeing derailleur reliability, the synchronous ware quality of promotion odd -side. Through increasing a series of gas circuit protection device, when the height kept off the driving, the gas circuit was opened when the speed of a motor vehicle was higher than the setting value, and protection device comes into force, and couple H handled and to be selected into the low district that keeps off this moment, and odd -side synchronization ware is unable changes low keeping off from high keeping off. The gas circuit is closed when the speed of a motor vehicle is less than the calibration value, and the protection is cancelled, can normally be selected into the low district that keeps off and put into gear.
Description
[technical field]
The utility model belongs to gear changeover protection system technical field, and relate to a kind of two H and handle band odd-side speed changer, the two H of especially a kind of commercial car handles odd-side high to low gear changeover protection system.
[background technique]
Along with the internationalization day by day of product, user requires more and more higher to the quality and performance of gearbox, the fault that the band odd-side speed changer that current company produces exists auxiliary box synchronizer premature wear and comes off, find through investigation and recurrence of failure, one of them major reason is that driver carries out high gear switching low gear when the higher speed of a motor vehicle, this behavior can cause auxiliary box synchronizer Fast Wearing thus lose efficacy, and then can not meet client to the reliability of gearbox and life requirements.Due to the needs that product reliability promotes, need increase the odd-side high to low gear changeover protection system under a set of high speed of a motor vehicle to existing production transmissions, thus improve gearbox reliability, its meaning is very important.Two H control system is one of speed-changer operation system of current main-stream, based on this protective system exploitation that two H operates, very urgently.
[model utility content]
The purpose of this utility model is the shortcoming overcoming above-mentioned prior art, provides the two H of a kind of commercial car to handle odd-side high to low gear changeover protection system.
For achieving the above object, the utility model is achieved by the following technical solutions:
The two H of a kind of commercial car handles odd-side high to low gear changeover protection system, it is characterized in that, comprises cylinder block and be arranged at the piston in cylinder block, be arranged with spring between piston and cylinder block inwall, and one end of spring is by cylinder block location, and the other end is by piston location; Cylinder block end connects protective gear, and protective gear is connected with car load source of the gas, makes odd-side when high gear, the speed of a motor vehicle are higher than calibration value under bleed pressure, stops horizontal gear level in handling to move to low gear district.
Further improvement of the utility model is:
Protective gear comprises gas path control valve, and cylinder block rear portion is connected with gas path control valve by connecting tracheae; Car load source of the gas passes in the gas cavity that piston end and cylinder block formed by gas path control valve under the control of solenoid valve, and piston is at the move under influence of the gas passed into or spring.
Piston is arranged with the O type circle for isolating cylinder block front springs receiving cavity and backside gas cavity.
Solenoid valve is connected with full-vehicle control logic, and its control signal output terminal is connected with the control end of gas path control valve.
Gas path control valve is also provided with venting plug, and when the speed of a motor vehicle is lower than calibration value, solenoid valve interrupts the signal sent to gas path control valve, and gas path control valve disconnects, and connects tracheae and is communicated with venting plug and is exhausted.
The side of cylinder block, offers for during at piston movement in the position of spring receiving cavity, carries out the vent of intake and exhaust.
Compared with prior art, the utility model has following beneficial effect:
It is develop under the demand ensureing transmission reliability, lifting auxiliary box synchronizer quality that the two H of the utility model handles odd-side high to low gear changeover protection system.Driving conditions status information is gathered, and desired data is processed, judges, for protective system work provides basis for estimation.By increasing a series of gas circuit protective gear (as solenoid valve, gas path control valve etc.); when high gear is driven a vehicle, the speed of a motor vehicle is opened higher than gas circuit during setting value, and protective gear comes into force; now two H handles and cannot be selected into low gear district, and auxiliary box synchronizer cannot change low gear from high gear.When the speed of a motor vehicle is closed lower than gas circuit during calibration value, protection is cancelled, and normally can be selected into low gear district and put into gear.The two H of commercial car handles odd-side high to low gear changeover protection system and forms primarily of solenoid valve, gas path control valve, tracheae, protective gear, and protective gear formation is contained in two H and handles end.
Further, the utility model protective gear is in two H manipulation, and only slightly need change manipulation, do not change secondary box of gearbox and other parts, cost is low, risk is little, and repacking is convenient.The utility model can significantly reduce auxiliary box synchronizer fault, especially misoperation fault, promotes gearbox quality.Meet urgency, enough large block selecting power still can be selected by force to low gear district, increases and travels reliability and Security.
[accompanying drawing explanation]
Fig. 1 is the assembling relationship figure of the utility model and odd-side speed changer;
Fig. 2 is overall structure schematic diagram of the present utility model;
Protective system state when Fig. 3 is low gear traveling;
Protective system state when Fig. 4 is high gear low speed driving;
Fig. 5 is high gear protective system state when running at high speed;
Fig. 6 is that protective system automatically terminates instantaneous state;
Fig. 7 forces to select low gear district instantaneous state when being protective system work.
Wherein: 1 is car load source of the gas; 2 is solenoid valve; 3 is gas path control valve; 4 for connecting tracheae; 5 is O type circle; 6 is spring; 7 is piston; 8 is horizontal gear level.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is described in further detail:
See Fig. 1 to Fig. 7, the utility model comprises cylinder block and is arranged at the piston 7 in cylinder block, is arranged with spring 6 between piston 7 and cylinder block inwall, and one end of spring 6 is by cylinder block location, and the other end is located by piston 7; The side of cylinder block, offers in the position of spring receiving cavity for during at piston movement, the vent be exhausted.Piston 7 is arranged with the O type circle 5 for isolating cylinder block front springs receiving cavity and backside gas cavity.Cylinder block rear portion is connected with gas path control valve 3 by connecting tracheae 4.Solenoid valve 2 is connected with full-vehicle control logic, and its control signal output terminal is connected with the control end of gas path control valve 3.Cylinder block end connects gas path control valve 3, car load source of the gas 1 passes in the gas cavity that piston 7 end and cylinder block formed by gas path control valve 3 under the control of solenoid valve 2, piston 7 is at the move under influence of the gas passed into or spring 6, make odd-side when high gear, the speed of a motor vehicle are higher than calibration value, stop horizontal gear level 8 in handling to move to low gear district.
When odd-side is in high gear, when the speed of a motor vehicle is higher than calibration value simultaneously, solenoid valve 2 sends signal to gas path control valve 3, and gas path control valve 3 is opened, and car load source of the gas 1 enters gas cavity by connecting tracheae 4; Piston 7 is under the promotion of gas pressure, and the pressure overcoming spring 6 stretches out cylinder block, until piston 7 and cylinder block are withstood, piston 7 front-end face presses close to horizontal gear level 8 end in the position of high neutral.
Gas path control valve 3 is also provided with venting plug, and when the speed of a motor vehicle is lower than calibration value, solenoid valve 2 interrupts the signal sent to gas path control valve 3, and gas path control valve 3 disconnects, and connects tracheae 4 and is communicated with venting plug and is exhausted.
Principle of the present utility model:
A. gas path control valve 3 normal off, is communicated with venting plug.Open when receiving solenoid valve 2 signal.
B. solenoid valve 2 is by car load logic control, when odd-side meets higher than these two conditions of calibration value in high gear (namely handling in high gear district), the speed of a motor vehicle simultaneously, sends signal to gas path control valve 3.
C. when odd-side is when high gear, the speed of a motor vehicle are higher than calibration value, gas path control valve 3 is opened, and the piston 7 of protective gear stretches out and stops horizontal gear level 8 in manipulation to move to low gear district, makes it still rest on high gear district and cannot be switched to low gear.Because handling not conversion, odd-side is still in high gear, and auxiliary box synchronizer is not changed, thus protects the effect of auxiliary box synchronizer when playing the high speed of a motor vehicle.
Working procedure of the present utility model:
A. when low neutral or low gear travel:
As shown in Figure 3, because odd-side is in low gear, operator cabin handball is positioned at low gear district, and scope gear cylinder is positioned at low gear, and the speed of a motor vehicle is not controlled; Solenoid valve 2 can not send signal to gas path control valve 3, and car load source of the gas 1 is blocked by gas path control valve 3, and piston 7 is retracted in protective gear cylinder block by the pressure of spring 6, and protective system does not work.Driver can continue to travel or select to travel to high gear district.
B. high neutral or high gear, when the speed of a motor vehicle travels lower than calibration value:
As shown in Figure 4, because the speed of a motor vehicle is lower than calibration value, operator cabin handball is positioned at high gear district, and scope gear cylinder is in high gear; Solenoid valve 2 can not send signal to gas path control valve 3, and identical with situation A, protective system does not work.Driver can continue to travel or select to travel to low gear district.
C. high neutral or high gear, when the speed of a motor vehicle travels higher than calibration value:
As shown in Figure 5; operator cabin handball is positioned at high gear district; scope gear cylinder is positioned at high gear, and the speed of a motor vehicle is higher than calibration value simultaneously, and solenoid valve 2 sends signal to gas path control valve 3; gas path control valve 3 is opened; car load source of the gas 1 enters protective gear by connecting tracheae 4, and because O type circle 5 seals, gas is filled with right chamber and promotes piston 7 and overcome spring pressure and be moved to the left; left intracavity gas is discharged by vent, until piston 7 and cylinder block are withstood.Now horizontal gear level 8 end is pressed close in the position of high neutral in piston 7 left side, stops horizontal gear level 8 to move right (namely stop and handle handball choosing to low gear district), protective system work.Driver in high gear district range operation, cannot be selected into low gear district only.
D. when protective system automatically terminates:
As shown in Figure 6, during protective system work, only have when the speed of a motor vehicle is lower than calibration value, protective system just can automatically terminate.Now operator cabin handball is positioned at high gear district, and scope gear cylinder is positioned at high gear, and when the speed of a motor vehicle is lower than calibration value, solenoid valve 2 interrupts the signal sent to gas path control valve 3, and gas path control valve 3 disconnects, and is communicated with venting plug.Car load source of the gas 1 is blocked by gas path control valve 3 and cannot continue to enter gas circuit protective gear; due to the effect of spring 6 pressure; promote piston 7 to move right; right chamber gas is discharged from the venting plug of gas path control valve 3 by connecting tracheae; left chamber is by vent suction gas, until piston 7 right-hand member withstands cylinder head, now piston is all regained in protective gear cylinder block; horizontal gear level 8 can move right, and protective system no longer works.Driver can continue to travel or select to travel to low gear district.
E. force to be selected into low gear district during protective system work:
As shown in Figure 7, as urgency during protective system work, as situations such as brake failure, need enough large power handball to be forced be selected into low gear district from high gear district and put into gear to reach speed limit object.Operator cabin handball is changed to low neutral by high neutral; scope gear cylinder is positioned at high gear; the speed of a motor vehicle is higher than calibration value; horizontal gear level 8 is under enough effects energetically; the thrust overcoming car load air pressure 1 heads on piston 7 and moves right; the left chamber of protective gear is by vent suction gas; right chamber gas overcomes that car load bleed pressure is reverse returns car load gas holder; when handball is forced to be selected into low empty position by high empty position; auxiliary box cylinder can proceed to low gear by high gear; now identical with situation A, protective system no longer works, can be linked into comparatively low gear by motor restricted speed.
By above protective system; ensure that driver does not intervene when normal running, when car load is in high gear, the speed of a motor vehicle higher than calibration value, protective system gets involved and stops manipulation high gear to be switched to low gear; thus ensure that auxiliary box synchronizer is still in high gear position, realize the protection to band odd-side speed changer.While protective system work, allow in case of emergency to force manipulation to be selected into low gear district and put into gear, odd-side high gear is transformed into low gear, realizes, by the object of urgent downshift restricted speed, preventing unexpected generation, enhancing driving safety.
Above content is only and technological thought of the present utility model is described; protection domain of the present utility model can not be limited with this; every technological thought according to the utility model proposes, any change that technological scheme basis is done, within the protection domain all falling into the utility model claims.
Claims (6)
1. the two H of commercial car handles odd-side high to low gear changeover protection system, it is characterized in that, comprise cylinder block and be arranged at the piston (7) in cylinder block, spring (6) is arranged with between piston (7) and cylinder block inwall, one end of spring (6) is by cylinder block location, and the other end is by piston (7) location; Cylinder block end connects protective gear, and protective gear is connected with car load source of the gas (1), makes odd-side when high gear, the speed of a motor vehicle are higher than calibration value under bleed pressure, stops horizontal gear level (8) in handling to move to low gear district.
2. the two H of commercial car according to claim 1 handles odd-side high to low gear changeover protection system, it is characterized in that, described protective gear comprises gas path control valve (3), and cylinder block rear portion is connected with gas path control valve (3) by connecting tracheae (4); Car load source of the gas (1) passes in the gas cavity that piston (7) end and cylinder block formed by gas path control valve (3) under the control of solenoid valve (2), and piston (7) is at the move under influence of the gas passed into or spring (6).
3. the two H of commercial car according to claim 1 and 2 handles odd-side high to low gear changeover protection system; it is characterized in that, described piston (7) being arranged with the O type circle (5) for isolating cylinder block front springs receiving cavity and backside gas cavity.
4. the two H of commercial car according to claim 2 handles odd-side high to low gear changeover protection system; it is characterized in that; described solenoid valve (2) is connected with full-vehicle control logic, and its control signal output terminal is connected with the control end of gas path control valve (3).
5. the two H of commercial car according to claim 2 handles odd-side high to low gear changeover protection system; it is characterized in that; (3) are also provided with venting plug to described gas path control valve; when the speed of a motor vehicle is lower than calibration value; solenoid valve (2) interrupts the signal sent to gas path control valve (3); gas path control valve (3) disconnects, and connects tracheae (4) and is communicated with venting plug and is exhausted.
6. the two H of commercial car according to claim 2 handles odd-side high to low gear changeover protection system, it is characterized in that, the side of described cylinder block, offers for during at piston movement, carry out the vent of intake and exhaust in the position of spring receiving cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520394399.6U CN204852305U (en) | 2015-06-09 | 2015-06-09 | Two H of commercial car control odd -side and just keep off conversion protection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520394399.6U CN204852305U (en) | 2015-06-09 | 2015-06-09 | Two H of commercial car control odd -side and just keep off conversion protection system |
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| CN204852305U true CN204852305U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520394399.6U Active CN204852305U (en) | 2015-06-09 | 2015-06-09 | Two H of commercial car control odd -side and just keep off conversion protection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896083A (en) * | 2015-06-09 | 2015-09-09 | 陕西法士特齿轮有限责任公司 | Double-H control auxiliary box range shifting protection system for commercial vehicle |
| CN110701294A (en) * | 2019-09-27 | 2020-01-17 | 西安法士特汽车传动有限公司 | Transmission control mechanism assembly |
-
2015
- 2015-06-09 CN CN201520394399.6U patent/CN204852305U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896083A (en) * | 2015-06-09 | 2015-09-09 | 陕西法士特齿轮有限责任公司 | Double-H control auxiliary box range shifting protection system for commercial vehicle |
| CN110701294A (en) * | 2019-09-27 | 2020-01-17 | 西安法士特汽车传动有限公司 | Transmission control mechanism assembly |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |