CN204784658U - Automatic automatically controlled pneumatic actuating mechanism that shifts that selects of mechanical transmission - Google Patents
Automatic automatically controlled pneumatic actuating mechanism that shifts that selects of mechanical transmission Download PDFInfo
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- CN204784658U CN204784658U CN201520350350.0U CN201520350350U CN204784658U CN 204784658 U CN204784658 U CN 204784658U CN 201520350350 U CN201520350350 U CN 201520350350U CN 204784658 U CN204784658 U CN 204784658U
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Abstract
The utility model relates to an automatic automatically controlled pneumatic actuating mechanism that shifts that selects of mechanical transmission is equipped with a built -in selection shelves cylinder in the box, built -in selection shelves cylinder select selector shaft to pass through the crank connection selection to keep off the slider, the solenoid valve is connected to the left and right air inlet of built -in selection shelves cylinder, controls respectively that admitting air in a built -in selection shelves cylinder left side, admits air in the right side, admits air simultaneously through the solenoid valve, realizes control selector shaft left side right -of -center in political views's three gear shift position. Adopt built -in cylinder, selection shelves thrust is direct thrust atress structure by original parallel axis transmission atress structure, avoids the structure to deflect and forms additional drag, reduces selection shelves operate time, has improved shift quality. Having cancelled original outside and having set up the shift structure of cylinder of selection, avoided reversing gear with the gearbox, the interference of neutral position switch, the convenient maintenance is maintained. The cylinder surface adopts the cooling fin structure who only just uses usually on electronic controller, effectively reduce operating temperature, reduces the quick ageing that the cylinder seal circle arouses because of the temperature height, and extension sealing washer life increases product reliability.
Description
Technical field
The utility model relates to a kind of automated mechanical transmission, especially a kind of automated mechanical transmission ecp shift-selecting and changing actuating mechanism being used for new energy (mixed power, pure electronic) passenger vehicle, Large and medium buses and medium and heavy loading.
Background technique
Automated mechanical transmission (AMT) installs micro-processor controlled automatic speed-changing system additional on dry clutch and gear-shift transmission basis.According to bus dynamic data (engine speed, moment of torsion, oil consumption, accelerator pedal position etc.) and the speed of a motor vehicle, driver's operation etc., determine best gear, control clutch separation that reason driver manually completes and joint, gear shifting handle pluck the operating process such as the synchronization regulation of the accelerator open degree of shelves and engage a gear and motor, finally realize the manipulation automation of gearshift procedure.Compare with conventional AT (fluid torque converter automatic transmission), have that transmission efficiency is high, oil consumption is low, working service cost is low, be easy to the advantages such as manufacture, handiness, especially its fuel-efficient feature is suitable for the application of China's commercial car (Large and medium buses and medium and heavy load-carrying vehicle).
In European commercial car field, within 1986, first cover AMT speed changer is brought into use, by AMT entrucking total amount in 2010 more than 70%.Although and just risen in this technology of China, had an optimistic view of by increasing Professional visitors, domestic Duo Jia speed changer enterprise is all at the AMT product that actively research and development are respective.
At present, the AMT of domestic commercial vehicle is still in the trial period, and the overwhelming majority of use is the imported product of ZF and Eton, and also have the product of the domestic depot of part and WABCO co-production, only a few has domestic independent intellectual property right.
Shift-selecting and changing actuating mechanism is the vitals of automated mechanical transmission system.The current following problem of automated mechanical transmission shift-selecting and changing actuating mechanism ubiquity:
1, because of bulky, complex structure, interfere with gearbox designs.Cause maintenance maintenance inconvenient.
2, bad because dispelling the heat, operating temperature is high.Cause aging fast, the malformation jam of seal ring.
3, because stress is unreasonable, gear selecting thrust, low-grade gearshift thrust are less than normal, and the gearshift time is long, and cause shift quality low, neutral return is bad.
4, under winter low temperature environment, because lubricating oil viscosity in speed changer increases, speed-changer synchronizer friction factor reduces, and low grade enters shelves difficulty, shift-selecting and changing actuating mechanism continues the long period and is in stress, can damage actuator's cylinder part and speed-changer synchronizer time serious.
Model utility content
The utility model to provide a kind of automated mechanical transmission ecp shift-selecting and changing actuating mechanism, and effectively shorten the automated mechanical transmission shifting time, improves automated mechanical transmission shift quality, increases the method for automated mechanical transmission reliability; The technical problem mainly solved is: 1, bulky, complex structure, interferes with gearbox designs, repair and maintenance inconvenience 2, dispels the heat bad, and operating temperature is high, and seal ring is soon aging, and the life-span is short, reliably poor; 3, gear selecting thrust, low-grade gearshift thrust are less than normal, and the gearshift time is long, and shift quality is not good, and neutral return is bad.4, under low temperature environment, enter shelves difficulty, shift-selecting and changing actuating mechanism continues the long period and is in stress, can damage actuator's cylinder part and speed-changer synchronizer time serious.
For achieving the above object, the technical solution of the utility model: a kind of automated mechanical transmission ecp shift-selecting and changing actuating mechanism, structure has a mission case, a shifting cylinder being fixedly connected on mission case side, a gear shift sensor fixed base being fixedly connected on mission case opposite side, a solenoid valve for cylinder commutation, described mission case is built with built-in gear selecting cylinder, shifting axle in described built-in gear selecting cylinder connects block selecting slide block by crank, shifting axle in described built-in gear selecting cylinder is connected shifting shaft by crank with shift carriage, a left side for described built-in gear selecting cylinder, right suction port connected electromagnetic valve, the left air inlet of built-in gear selecting cylinder is controlled respectively by solenoid valve, right air inlet, air inlet simultaneously, realize three shift patterns controlling shifting shaft left center right.
Described shifting cylinder outer surface and gear shift sensor fixed base outer surface are provided with heat radiating fin structure, increase heat diffusion area, and for avoiding causing because temperature is high, seal ring is aging, malformation jam phenomenon.
Described shifting cylinder has an inner carrier for increasing low grade gearshift thrust, and a shifting cylinder outer piston, and shifting cylinder outer piston is identical with shifting cylinder inner carrier diameter dimension, can realize the accurate return of neutral.
Described block selecting slide block is placed in longitudinal cylindrical slide, and magnetic core bar is housed after block selecting slide block.
Shifting axle in described built-in gear selecting cylinder is fixedly connected with gear selecting piston shaft, and be provided with piston sleeve between gear selecting piston shaft and cylinder block, gland is equipped with in cylinder block rear end.
Shifting cylinder inner carrier and shifting cylinder outer piston are housed in the cylinder body of described shifting cylinder, and shifting cylinder inner carrier is fixedly connected with shifting shaft, shifting cylinder inner carrier.
Described shifting shaft and gear shift sensor fixed base are connected, and gear selecting extension sensor bar is equipped with in shifting shaft front end.
When described shifting cylinder inner carrier two ends convex position is in left and right position, block left and right ventilating hole, forming elastic compression air cushion in cylinder cavity both sides, for effectively alleviating in synchronizing process the impact deriving from gearbox, avoiding damage actuator's cylinder part and speed-changer synchronizer.
The beneficial effects of the utility model are:
Adopt built-in cylinder, eliminate the structure of original outer installment shifting cylinder, avoid the interference with gearbox reverse gear, neutral position switch.It is direct Thrust force structure that gear selecting thrust transmits force structure by original parallel axes, avoids structure to deflect and forms additional drag, reduces gear selecting actuation time, improves shift quality.
The structural design of cylinder and sensor support base outside heat sink, ensure that the efficiently radiates heat under frequent shifting operating mode, avoids causing because temperature is high that seal ring is aging, malformation jam.
The increasing of range piston diameter, adds low-grade thrust, solves the problem that low-grade shift quality is bad; Shifting cylinder left and right diameter dimension is identical, solves the present situation that neutral return is not good.
Accompanying drawing explanation
Fig. 1 is automated mechanical transmission structural upright schematic diagram of the present utility model;
Fig. 2 is automated mechanical transmission structural front view of the present utility model;
Fig. 3 is along A-A sectional view in Fig. 2;
Fig. 4 is along B-B sectional view in Fig. 2.
Fig. 5 is partial enlarged drawing in Fig. 4.
Embodiment
As shown in Figure 1 to Figure 3, a kind of automated mechanical transmission ecp shift-selecting and changing actuating mechanism, comprise shifting cylinder 1, shift carriage 2, shifting cylinder end cap 3, shifting cylinder inner carrier 4, shifting cylinder outer piston 5, shifting shaft 6, solenoid valve 7, solenoid valve gland 8, gear shift sensor fixed base 9, contiguous block 10, mandrel 11, crank 12, shifting axle 13, lining 14, first y-type seal ring 15, outside framework oil seal 16, second y-type seal ring 17, first displacement transducer 18, second displacement sensor 19, gear selecting extension sensor bar 20, block selecting slide block 21, gear selecting piston shaft 22, cylindrical slide 23, cylindrical slide 24, gland 25, piston sleeve 26, magnetic core bar 27, upper cover 28, cushion seal circle 29, mission case 30.
Mission case 30 side is fixedly connected with shifting cylinder 1, and opposite side is fixedly connected with gear shift sensor fixed base 9.Mission case 30 is built with built-in gear selecting cylinder, shifting axle 13 in built-in gear selecting cylinder connects block selecting slide block 21 by crank 12, shifting axle 13 in built-in gear selecting cylinder is connected shifting shaft 6 by crank 12 with shift carriage 2, the left and right suction port connected electromagnetic valve 7 of described built-in gear selecting cylinder, control the left air inlet of built-in gear selecting cylinder, right air inlet, air inlet simultaneously respectively by solenoid valve 7, realize three shift patterns controlling shifting shaft 6 left center right.
Shifting cylinder 1 and gear shift sensor fixed base 9 outer surface are provided with heat radiating fin structure, and for avoiding causing because temperature is high, seal ring is aging, malformation jam.
Shifting cylinder has an inner carrier 4 for increasing low grade gearshift thrust, and a shifting cylinder outer piston 5, and shifting cylinder outer piston 5 is identical with shifting cylinder inner carrier 4 diameter dimension, can realize neutral return.
Built-in gear selecting cylinder is made up of contiguous block 10, shifting axle 13, gear selecting piston shaft 22, gland 25, piston sleeve 26, controls upper air, lower air inlet, air inlet simultaneously respectively, control three gear selection position of shifting axle 13 upper, middle and lower by solenoid valve 7.
Shifting cylinder is made up of shifting cylinder 1, shifting cylinder end cap 3, shifting cylinder inner carrier 4, shifting cylinder outer piston 5, shifting shaft 6, contiguous block 10, control left air inlet, right air inlet, air inlet simultaneously respectively by solenoid valve 7, control three shift patterns of shifting shaft 6 left center right.The enlarged diameter of shifting cylinder inner carrier 4, adds low-grade thrust, solves the problem that low-grade shift quality is bad; The diameter dimension of shifting cylinder inner carrier 4, shifting cylinder outer piston 5 is identical, solves the present situation that neutral return is not good.As Fig. 4, shown in 5, when the inner carrier 4 two ends convex position of shifting cylinder 1 is in left and right position, left and right ventilating hole 31 can be blocked, 32, form elastic compression air cushion 33 in cylinder cavity both sides, effectively alleviate the impact deriving from gearbox in synchronizing process, avoid damage actuator's cylinder part and speed-changer synchronizer.
Block selecting slide block 21 is placed in longitudinal cylindrical slide 23, and block selecting slide block 21 is equipped with magnetic core bar 27 below.Shifting axle 13 in built-in gear selecting cylinder is fixedly connected with gear selecting piston shaft 22, is provided with piston sleeve 26 between gear selecting piston shaft 22 and cylinder block, gland 25 is equipped with in cylinder block rear end.Shifting cylinder inner carrier 4 and shifting cylinder outer piston 5 are housed in the cylinder body of shifting cylinder 1, and shifting cylinder inner carrier 4 is fixedly connected with shifting shaft 6, shifting cylinder inner carrier 4.Shifting shaft 6 and gear shift sensor fixed base 9 are connected, and gear selecting extension sensor bar 20 is equipped with in shifting shaft 6 front end.
Structural feature of the present utility model is:
A, complex structure bulky for existing product, the present situation of interfering with gearbox designs, Curve guide impeller structure, by ambient around shifting axle, is designed to built-in gear selecting cylinder, and extends shifting pole length, greatly reduce structural volume; Avoid the constructive interference with transmission neutral, reverse gear switch.
B, for existing product heat radiation bad, the present situation that operating temperature is high, at shifting cylinder outer surface, sensor fixed bearing outer surface, the radiating fin that design only just uses usually on electronic controller, efficiently radiates heat, avoids causing because temperature is high that seal ring is aging, malformation jam.
C, less than normal for existing product gear selecting thrust, low-grade gearshift thrust, the present situation that neutral return is not good, changing original gear selecting thrust parallel axes, to transmit force structure be direct Thrust force structure; Changing former gearshift different diameter piston structure is isometrical piston structure.Effective solution shift quality is low, the present situation that neutral return is not good.
D, for under winter low temperature environment, because lubricating oil viscosity in speed changer increases, speed-changer synchronizer friction factor reduces, low grade enters shelves difficulty, shift-selecting and changing actuating mechanism continues the long period and is in stress, the present situation of actuator's cylinder part and speed-changer synchronizer can be damaged time serious, design special air cushion buffering structure, shifting cylinder inner carrier two ends convex position is in a left side, during right position, a left side can be blocked, right ventilating hole, elastic compression air cushion is formed in cylinder cavity both sides, the impact of gearbox is derived from effective alleviation synchronizing process, avoid damage actuator's cylinder part and speed-changer synchronizer.
Claims (8)
1. an automated mechanical transmission ecp shift-selecting and changing actuating mechanism, structure has a mission case (30), a shifting cylinder (1) being fixedly connected on mission case side, a gear shift sensor fixed base (9) being fixedly connected on mission case (30) opposite side, a solenoid valve (7) for cylinder commutation, it is characterized in that: described mission case is built with built-in gear selecting cylinder, shifting axle (13) in described built-in gear selecting cylinder connects block selecting slide block (21) by crank (12), a left side for described built-in gear selecting cylinder, right suction port connected electromagnetic valve (7), the left air inlet of built-in gear selecting cylinder is controlled respectively by solenoid valve (7), right air inlet, air inlet simultaneously, realize three shift patterns controlling shifting shaft (6) left center right.
2. automated mechanical transmission ecp shift-selecting and changing actuating mechanism according to claim 1, it is characterized in that: described shifting cylinder (1) and gear shift sensor fixed base (9) outer surface are provided with heat radiating fin structure, for avoiding causing because temperature is high, seal ring is aging, malformation jam.
3. automated mechanical transmission ecp shift-selecting and changing actuating mechanism according to claim 1, it is characterized in that: described shifting cylinder (1) has an inner carrier (4) for increasing low grade gearshift thrust, and a shifting cylinder outer piston (5), shifting cylinder outer piston (5) is identical with shifting cylinder inner carrier (4) diameter dimension, can realize the accurate return of neutral.
4. automated mechanical transmission ecp shift-selecting and changing actuating mechanism according to claim 1, it is characterized in that: described block selecting slide block (21) is placed in longitudinal cylindrical slide (23), block selecting slide block (21) is equipped with magnetic core bar (27) below.
5. automated mechanical transmission ecp shift-selecting and changing actuating mechanism according to claim 1, it is characterized in that: the shifting axle (13) in described built-in gear selecting cylinder is fixedly connected with gear selecting piston shaft (22), be provided with piston sleeve (26) between gear selecting piston shaft (22) and cylinder block, gland (25) is equipped with in cylinder block rear end.
6. automated mechanical transmission ecp shift-selecting and changing actuating mechanism according to claim 1, it is characterized in that: shifting cylinder inner carrier (4) and shifting cylinder outer piston (5) are housed in the cylinder body of described shifting cylinder (1), shifting cylinder inner carrier (4) is fixedly connected with shifting shaft (6), shifting cylinder inner carrier (4).
7. automated mechanical transmission ecp shift-selecting and changing actuating mechanism according to claim 1, it is characterized in that: described shifting shaft (6) and gear shift sensor fixed base (9) are connected, and gear selecting extension sensor bar (20) is equipped with in shifting shaft (6) front end.
8. automated mechanical transmission ecp shift-selecting and changing actuating mechanism according to claim 3, it is characterized in that: when inner carrier (4) the two ends convex position of described shifting cylinder (1) is in left and right position, block left and right ventilating hole (31,32), elastic compression air cushion (33) is formed in cylinder cavity both sides, for effectively alleviating in synchronizing process the impact deriving from gearbox, avoid damage actuator's cylinder part and speed-changer synchronizer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520350350.0U CN204784658U (en) | 2015-05-27 | 2015-05-27 | Automatic automatically controlled pneumatic actuating mechanism that shifts that selects of mechanical transmission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520350350.0U CN204784658U (en) | 2015-05-27 | 2015-05-27 | Automatic automatically controlled pneumatic actuating mechanism that shifts that selects of mechanical transmission |
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| CN204784658U true CN204784658U (en) | 2015-11-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930183A (en) * | 2015-05-27 | 2015-09-23 | 詹志勇 | Electrically-controlled pneumatic gear selecting and shifting execution mechanism of automatic mechanical transmission |
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- 2015-05-27 CN CN201520350350.0U patent/CN204784658U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930183A (en) * | 2015-05-27 | 2015-09-23 | 詹志勇 | Electrically-controlled pneumatic gear selecting and shifting execution mechanism of automatic mechanical transmission |
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