CN201934643U - Gas circuit control system for front auxiliary box of transmission - Google Patents
Gas circuit control system for front auxiliary box of transmission Download PDFInfo
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- CN201934643U CN201934643U CN2011200545715U CN201120054571U CN201934643U CN 201934643 U CN201934643 U CN 201934643U CN 2011200545715 U CN2011200545715 U CN 2011200545715U CN 201120054571 U CN201120054571 U CN 201120054571U CN 201934643 U CN201934643 U CN 201934643U
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- 230000005540 biological transmission Effects 0.000 title description 3
- 239000000945 filler Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 abstract 3
- 239000010727 cylinder oil Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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Abstract
The utility model provides a derailleur forebox gas circuit control system, includes air supply, two-position three-way valve, relay valve and forebox cylinder, two-position three-way valve is integrated on the booster, this booster includes piston and the oil control cylinder of mutually supporting, the cylinder air inlet of oil control cylinder is connected with the air supply, the cylinder oil inlet of oil control cylinder is connected with the master cylinder, the other clutch footboard that is provided with rather than matched with of master cylinder, the air supply is connected with two-position three-way valve's logical valve air inlet, two-position three-way valve's logical valve gas outlet is connected with the relay valve air inlet of relay valve, No. one gas outlet and No. two gas outlets of relay valve are connected with the forebox cylinder through a relief valve, No. two relief valves are respectively connected, the preset mouth of relay valve is connected with the control valve gas outlet of handle control. This design not only reacts very fast, can avoid the appearance of derailleur front auxiliary box tooth phenomenon moreover.
Description
Technical field
The utility model relates to the control gear of the preceding odd-side of a kind of speed changer, relates in particular to the preceding odd-side air-path control system of a kind of speed changer, specifically is applicable to the crash change of speed of the preceding odd-side of multi-speed transmission.
Background technique
The preceding odd-side gas control gearshift of multi-speed transmission both at home and abroad at present is divided into two kinds:
First kind is to select the mechanical solenoid valve of gear shift action control to carry out gas circuit to switch by gearshift axle; thereby the switching of odd-side high and low shift before realizing; because this operation has two neutral positions usually; select the total kilometres of gear shift bigger in the operator cabin; therefore make the miscellaneous part touching in manipulator and the operator cabin easily, fragile component, simultaneously; gear is more, handles tired easily.
Second kind is to carry out gas circuit by handle control valve control high and low shift control valve to switch, and promptly adopts the preceding odd-side cylinder gearshift of pressurized gas control.Because the switching of odd-side high and low shift is controlled by gas circuit fully before this, connect irrational situation in case gas circuit in manipulation process, occurs, then can cause air pressure not enough, and the gearshift action is lagged behind, simultaneously, before the control of handle control valve, in the process of odd-side gearshift,, then can cause the preceding odd-side of speed changer to play the appearance of tooth phenomenon if clutch separates fully.
Prior art is at above-mentioned shortcoming; improve by odd-side gearshift before increasing by 13 pairs of existing two position three-way valves; referring to Fig. 1; let slip the clutch 10 is behind certain position; the existing two position three-way valve 13 that is integrated on the clutch pedal 10 is open-minded, the while clutch separation, but this protection is not comprehensive yet; can not guarantee after clutch pedal 10 is floored that clutch separates fully, and clutch separate fully will cause speed changer before odd-side beat the tooth phenomenon.
The Chinese patent publication number is CN101520089A, the patent of invention that open day is on September 2nd, 2009 discloses the Pneumatic shift operating system of secondary box of gearbox in a kind of AE field, comprise: air-strainer and reduction valve, the high and low shift control valve, the shunt control valve, branch switch, back power taking mistake proofing valve, compound gear control cylinder and power take-off valve, this invention moves on to the control gas circuit with the shunt control valve in the original system from main gas circuit, power taking mistake proofing valve after before the low-grade suction port of compound gear control cylinder, having increased by one, and the structure of original two control valves and a branch switch redesigned.The misoperation problem when though this invention can solve power taking behind the vehicle, and can avoid the out of supply of odd-side synchronizer, it still can not avoid odd-side before the speed changer to play the appearance of tooth phenomenon, and reaction is slower.
Summary of the invention
The purpose of this utility model be overcome the reaction that exists in the prior art slow, can cause speed changer before odd-side beat defective and the problem that the tooth phenomenon occurs, provide a kind of and react very fast, can avoid odd-side before the speed changer to beat odd-side air-path control system before the speed changer that the tooth phenomenon occurs.
For realizing above purpose, technical solution of the present utility model is: odd-side air-path control system before a kind of speed changer, comprise source of the gas, two position three-way valve, relay valve and preceding odd-side cylinder, described source of the gas is connected with the logical valve suction port of two position three-way valve, the logical valve air gate of two position three-way valve is connected with the relay valve suction port of relay valve, an air outlet of relay valve, No. two air outlets all are connected with preceding odd-side cylinder, and the default mouth of relay valve is connected with the control valve air outlet of handle control valve; Described two position three-way valve is integrated on the booster, this booster comprises the piston and oil control cylinder that cooperatively interacts, the cylinder air inlet of oil control cylinder is connected with source of the gas, and the cylinder filler opening of oil control cylinder is connected with master cylinder, and at the other clutch pedal that matches with it that is provided with of master cylinder.
Described source of the gas is connected with the control valve suction port of handle control valve, and the control valve air outlet of handle control valve is connected with the default mouth of relay valve.
An air outlet on the described relay valve is connected with preceding odd-side cylinder by a reduction valve, No. two reduction valve respectively with No. two air outlets.
The pressure of a described reduction valve, No. two reduction valve input ends is 6 – 8bar, and the pressure of output terminal is 2.8 – 3.2bar.
The pressure of described source of the gas is 6 – 8bar.
Described handle control valve is a high and low shift gas path on-off control valve.
Compared with prior art, the beneficial effects of the utility model are:
1, because the handle control valve before a kind of speed changer of the utility model in the odd-side air-path control system directly is connected with source of the gas, be that source of the gas directly is connected with the control valve suction port of handle control valve, the control valve air outlet of handle control valve is connected with the default mouth of relay valve, during use, press the switch of lower handle control valve, enter the handle control valve from the high-pressure air of 6 – 8bar of car load source of the gas through the control valve suction port of handle control valve, again successively by the control valve air outlet, default mouth enters the control cylinder of relay valve, make relay valve realize high and low shift gas circuit preliminary election function, thereby guarantee that a let slip the clutch just can shift gears immediately, react very fast, do not have hysteresis.Therefore reaction of the present utility model is very fast.
2, owing to an air outlet on the relay valve in the odd-side air-path control system before a kind of speed changer of the utility model is connected with preceding odd-side cylinder by a reduction valve, No. two reduction valve respectively with No. two air outlets, this kind can guarantee that with the design that reduction valve, No. two reduction valve are arranged between relay valve and the preceding odd-side cylinder air pressure of handling gas circuit is in higher degree, and once flowing out gas circuit is carried out step-down by reduction valve unlike source of the gas in the prior art, thereby the air pressure of handling gas circuit in the utility model is higher, helps the raising of reaction velocity.Therefore reaction of the present utility model is very fast.
3, because two position three-way valve is integrated on the booster in the preceding odd-side air-path control system of a kind of speed changer of the utility model, this booster comprises the piston and oil control cylinder that cooperatively interacts, the cylinder air inlet of oil control cylinder is connected with source of the gas, the cylinder filler opening of oil control cylinder is connected with master cylinder, the other clutch pedal that matches with it that is provided with of master cylinder, this design has realized the linkage function of two position three-way valve and booster, in the use, have only when booster demonstrates clutch and separated fully, two position three-way valve just can be opened and handle gas circuit with conducting, really realized the gearshift after clutch thoroughly separates, avoided not beating the tooth phenomenon, prolonged the working life of speed changer owing to clutch thoroughly separates the preceding odd-side of the speed changer that causes.Therefore the utility model can avoid the preceding odd-side of speed changer to play the appearance of tooth phenomenon.
Description of drawings
Fig. 1 is the prior art constructions schematic representation.
Fig. 2 is a structural representation of the present utility model.
Among the figure: source of the gas 1, two position three-way valve 2, logical valve suction port 21, logical valve air gate 22, relay valve 3,32, No. two air outlets 33,31, numbers air outlets of relay valve suction port, default mouthful 34, preceding odd-side cylinder 4, handle control valve 5, control valve suction port 51, control valve air outlet 52, booster 6, piston 7, oil control cylinder 8, cylinder air inlet 81, cylinder filler opening 82, master cylinder 9,10, numbers reduction valve 11 of clutch pedal, No. two reduction valve 12, existing two position three-way valve 13, three-way union 14, existing reduction valve 15.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is described in further detail.
Referring to Fig. 2, odd-side air-path control system before a kind of speed changer, comprise source of the gas 1, two position three-way valve 2, relay valve 3 and preceding odd-side cylinder 4, described source of the gas 1 is connected with the logical valve suction port 21 of two position three-way valve 2, the logical valve air gate 22 of two position three-way valve 2 is connected with the relay valve suction port 31 of relay valve 3, the air outlet 32 of relay valve 3, No. two air outlets 33 all are connected with preceding odd-side cylinder 4, and default mouthful 34 of relay valve 3 is connected with the control valve air outlet 52 of handle control valve 5; Described two position three-way valve 2 is integrated on the booster 6, this booster 6 comprises the piston 7 and oil control cylinder 8 that cooperatively interacts, the cylinder air inlet 81 of oil control cylinder 8 is connected with source of the gas 1, the cylinder filler opening 82 of oil control cylinder 8 is connected with master cylinder 9, and at the master cylinder 9 other clutch pedals 10 that match with it that are provided with.
Described source of the gas 1 is connected with the control valve suction port 51 of handle control valve 5, and the control valve air outlet 52 of handle control valve 5 is connected with the default mouth 34 of relay valve 3.
The pressure of a described reduction valve 11, No. two reduction valve 12 input ends is 6 – 8bar, and the pressure of output terminal is 2.8 – 3.2bar.
The pressure of described source of the gas 1 is 6 – 8bar.
Described handle control valve 5 is a high and low shift gas path on-off control valve.
During use, press earlier the switch of lower handle control valve 5, subsequently, enter handle control valve 5 from the high-pressure air of 6 – 8bar of car load source of the gas 1 through the control valve suction port 51 of handle control valve 5, again successively by control valve air outlet 52, default mouthful 34 control cylinder that enters relay valve 3, make relay valve 3 realize high and low shift gas circuit preliminary election function, let slip the clutch 10 is to open master cylinder 9 then, the oil control cylinder 8 that master cylinder 9 drives in the booster 6, driven plunger 7 motions again of oil control cylinder 8, when moving to certain displacement, clutch separates fully, because two position three-way valve 2 is the serial verb constructions that integrate with booster 6, therefore when booster 6 demonstrates clutch and has separated fully, just can open two position three-way valve 2 and handle gas circuit with conducting, car load source of the gas 1 is successively by logical valve suction port 21, two position three-way valve 2, logical valve air gate 22 enters the relay valve suction port 31 of relay valve 3, thereby arrive the high and low shift preliminary election gas circuit of relay valve 3, and respectively through an air outlet 32, a reduction valve 11 and No. two air outlets 33, odd-side cylinder 4 before No. two reduction valve 12 enters is realized gearshift work.
Therefore the utility model not only reacts comparatively fast, and can avoid the preceding odd-side of speed changer to play the appearance of tooth phenomenon.
Claims (6)
1. odd-side air-path control system before the speed changer, comprise source of the gas (1), two position three-way valve (2), relay valve (3) and preceding odd-side cylinder (4), described source of the gas (1) is connected with the logical valve suction port (21) of two position three-way valve (2), the logical valve air gate (22) of two position three-way valve (2) is connected with the relay valve suction port (31) of relay valve (3), an air outlet (32) of relay valve (3), No. two air outlets (33) all are connected with preceding odd-side cylinder (4), and default mouthful (34) of relay valve (3) are connected with the control valve air outlet (52) of handle control valve (5), it is characterized in that: described two position three-way valve (2) is integrated on the booster (6), this booster (6) comprises the piston (7) and oil control cylinder (8) that cooperatively interacts, the cylinder air inlet (81) of oil control cylinder (8) is connected with source of the gas (1), the cylinder filler opening (82) of oil control cylinder (8) is connected with master cylinder (9), and at the other clutch pedal (10) that matches with it that is provided with of master cylinder (9).
2. odd-side air-path control system before a kind of speed changer according to claim 1, it is characterized in that: described source of the gas (1) is connected with the control valve suction port (51) of handle control valve (5), and the control valve air outlet (52) of handle control valve (5) is connected with default mouthful (34) of relay valve (3).
3. odd-side air-path control system before a kind of speed changer according to claim 1 and 2, it is characterized in that: the air outlet (32) on the described relay valve (3) is connected with preceding odd-side cylinder (4) by a reduction valve (11), No. two reduction valve (12) respectively with No. two air outlets (33).
4. odd-side air-path control system before a kind of speed changer according to claim 3, it is characterized in that: the pressure of a described reduction valve (11), No. two reduction valve (12) input end is 6 – 8bar, and the pressure of output terminal is 2.8 – 3.2bar.
5. odd-side air-path control system before a kind of speed changer according to claim 3, it is characterized in that: the pressure of described source of the gas (1) is 6 – 8bar.
6. odd-side air-path control system before a kind of speed changer according to claim 3, it is characterized in that: described handle control valve (5) is a high and low shift gas path on-off control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200545715U CN201934643U (en) | 2011-03-04 | 2011-03-04 | Gas circuit control system for front auxiliary box of transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200545715U CN201934643U (en) | 2011-03-04 | 2011-03-04 | Gas circuit control system for front auxiliary box of transmission |
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| CN201934643U true CN201934643U (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200545715U Expired - Lifetime CN201934643U (en) | 2011-03-04 | 2011-03-04 | Gas circuit control system for front auxiliary box of transmission |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954206A (en) * | 2012-12-03 | 2013-03-06 | 浙江亿日气动科技有限公司 | Integrated pneumatic shifting operation system |
| CN102966731A (en) * | 2012-12-03 | 2013-03-13 | 浙江亿日气动科技有限公司 | Pneumatic shifting control system for transmission |
| CN104747706A (en) * | 2015-03-24 | 2015-07-01 | 陕西法士特汽车传动集团有限责任公司 | Transmission auxiliary box synchronizer protection system with power takeoff |
| CN108454399A (en) * | 2018-03-30 | 2018-08-28 | 东风商用车有限公司 | Hydraulic electric control system of power takeoff with clutch and application method thereof |
| CN113700828A (en) * | 2021-08-31 | 2021-11-26 | 东风商用车有限公司 | Bearing lubricating structure, front shell device and transmission |
| CN115289215A (en) * | 2022-07-05 | 2022-11-04 | 一汽解放汽车有限公司 | Automatic transmission pneumatic system and automatic transmission |
-
2011
- 2011-03-04 CN CN2011200545715U patent/CN201934643U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954206A (en) * | 2012-12-03 | 2013-03-06 | 浙江亿日气动科技有限公司 | Integrated pneumatic shifting operation system |
| CN102966731A (en) * | 2012-12-03 | 2013-03-13 | 浙江亿日气动科技有限公司 | Pneumatic shifting control system for transmission |
| CN102966731B (en) * | 2012-12-03 | 2016-05-04 | 浙江亿日气动科技有限公司 | Speed changer Pneumatic shift operating system |
| CN104747706A (en) * | 2015-03-24 | 2015-07-01 | 陕西法士特汽车传动集团有限责任公司 | Transmission auxiliary box synchronizer protection system with power takeoff |
| CN104747706B (en) * | 2015-03-24 | 2017-07-28 | 陕西法士特汽车传动集团有限责任公司 | A kind of secondary box of gearbox synchronizer protection system with power takeoff |
| CN108454399A (en) * | 2018-03-30 | 2018-08-28 | 东风商用车有限公司 | Hydraulic electric control system of power takeoff with clutch and application method thereof |
| CN108454399B (en) * | 2018-03-30 | 2023-10-20 | 东风商用车有限公司 | Hydraulic and electric control system of power takeoff with clutch and application method thereof |
| CN113700828A (en) * | 2021-08-31 | 2021-11-26 | 东风商用车有限公司 | Bearing lubricating structure, front shell device and transmission |
| CN115289215A (en) * | 2022-07-05 | 2022-11-04 | 一汽解放汽车有限公司 | Automatic transmission pneumatic system and automatic transmission |
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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: 20130903 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430056 WUHAN, HUBEI PROVINCE TO: 442001 SHIYAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130903 Address after: 442001 Shiyan City, Hubei province city Zhangwan District Road No. 2 Patentee after: DONGFENG TRUCKS Co.,Ltd. Address before: 430056 Dongfeng Road, Wuhan Economic Development Zone, Hanyang District, Hubei, China, No. 10, No. Patentee before: DONGFENG MOTER Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| CX01 | Expiry of patent term |