CN101852289A

CN101852289A - Heavy-duty and rear-drive automobile wet-type double-clutch automatic speed-change power transmission device

Info

Publication number: CN101852289A
Application number: CN201010199557A
Authority: CN
Inventors: 程秀生
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-13
Filing date: 2010-06-13
Publication date: 2010-10-06

Abstract

The invention belongs to important transmission components and assemblies for a heavy-duty and rear-drive automobile. A heavy-duty and rear-drive automobile wet-type double-clutch automatic speed-change power transmission device mainly comprises a front clutch assembly, a speed changer shift gear assembly, a speed changer shift selecting mechanism, and a rear clutch assembly. The front and rear clutches are wet-type clutches, wherein the front wet-type clutch is arranged between an input shaft (31) and a first shaft (28) of a speed changer; a driving part (30) of the front wet-type clutch is coupled to the input shaft (31); a driven part (29) of the front wet-type clutch is coupled to the first shaft (28) of the speed changer; the rear wet-type clutch is arranged at the tail end of a second shaft (13) of the speed changer; a driving gear (18) of the rear wet-type clutch is coupled to an intermediate shaft (17) of the speed changer; a driven gear (14) is coupled to a driving part (15) of the rear wet-type clutch; and a driven part (16) of the rear wet-type clutch is coupled to the second shaft (13) of the speed changer.

Description

Heavy type and rear-drive automobile wet-type double-clutch automatic speed-change power transmission device

Technical field

The present invention relates to the important transmission part and the assembly of heavy type and rear-drive automobile, particularly a kind of heavy type and double-clutch type automatic gear shifting transmission device of rear drive automobile based on wet-type dual-clutch.

Technical background

At present in heavy type and the rear-drive automobile transmission system, its transmission device mainly contains: 1. 2. electric control mechanical type automatic speed variator (AMT) of mechanical type manual speed-changer (MT).

And above-mentioned transmission device all has the shortcoming of himself.1. scheme handles complexity, and the driver is easily tired out, can't realize power shfit, can not realize automaitc shfit.2. AMT will carry out Comprehensive Control to clutch and throttle owing to structural reason in gearshift procedure, has power interruption in gearshift procedure, can't realize power shfit, and property of automatic shft is poor.Because transmitting torque interrupts when quickening to upgrade, riding comfort is poor, thereby influences the extensive use of AMT.

This device has the advantage of traditional hydraulic automatic speed variator AT and AMT concurrently as a kind of new-type automatic speed-change power transmission device, and the mechanism of its wet clutch adapts to the requirement of power transmission system more.Heavy type and double-clutch type automatic gear shifting transmission device of rear drive automobile are innovation and the transformations on the AMT basis, it has inherited AMT efficient height, advantage that cost is low, interruption of AMT gearshift procedure medium power and starting stationarity problem rambunctious have been solved simultaneously again, make heavy type and rear-drive automobile have outstanding economical and power character, greatly improved the market competitiveness of this automatic transmission.

Heavy type and rear-drive automobile wet-type double-clutch automatic speed-change power transmission device are compared with other transmission device, mainly contain following advantage:

(1) transmission efficiency height.

(2) can realize power shfit and automaitc shfit, property of automatic shft and starting stationarity are good.

(3) torque capacity is big, can realize many gears, is applicable to heavy type and rear-drive automobile, can guarantee that it has good power character, Economy.

(4) production inheritance is good, and cost is low, can make full use of the manufacturing mechanism and the resource of traditional armstrong's patent speed changer.

Summary of the invention

The objective of the invention is to: heavy-duty car and rear-drive automobile electric control mechanical type automatic speed variator AMT gearshift procedure medium power interrupt and starting stationarity problem rambunctious in order to solve, propose a kind of based on wet-type double-clutch automatic speed-change power transmission device, to improve the power character and the Economy of automobile, when vehicle starting and speed changer are in the gearshift procedure, by the combination and the separation process of control front and back wet clutch respectively, realize that gentle start and power do not interrupt gear shift.

In conjunction with the accompanying drawings, be described as follows:

Heavy type and rear-drive automobile wet-type double-clutch automatic speed-change power transmission device, mainly consist of the following components: front clutch assembly, shifting of transmission gear assembly, speed changer gear selecting and shifting mechanism, back clutch assembly, described front and back clutch is wet clutch, wherein preceding wet clutch assembly is arranged between input shaft 31 and the clutch spindle 28, and back wet clutch assembly is arranged in the end of transmission main shaft 13.

Wet clutch active part 30 links with input shaft 31 before described, and preceding wet clutch secondary part 29 links with clutch spindle 28; Back wet clutch driving gear 18 links with transmission countershaft 17, and driven gear 14 links with back wet clutch active part 15, and back wet clutch secondary part 16 links with transmission main shaft 13.

Beneficial effect of the present invention: the combination that this device can be by controlling back wet clutch driving and driven

part

15,16 realizes the automobile power gearshift procedure with separating, can realize that power does not interrupt gear shift and automaitc shfit, property of automatic shft is good, realize the automobile balance starting by the cohesive process of the driving and driven

part

30,29 of wet clutch before controlling, this device transmission efficiency height, the production inheritance is good, and cost is low, can make full use of the manufacturing mechanism and the resource of traditional armstrong's patent speed changer.This device torque capacity is big, can realize many gears, is applicable to heavy-duty car and rear-drive automobile, can guarantee that it has good power character, Economy.

Description of drawings

Accompanying drawing 1 is the schematic diagram of this device;

Accompanying drawing 2 is assembly figure of this device.

In the accompanying drawing: 1. the first axle constant mesh gear 2. 5, six grades of synchronizeds 3. select selector device 4. first axle six shift of gears 5. first axle fourth gears 6. 3, fourth gear synchronized 7. first axle third gears 8. first axle intermediate gears 9. 1, one grade of gear 11. reverse gear of second gear synchronized 10. first axles in conjunction with normal engaged transmission gear 28. clutch spindles of gear ring 12. first axle back gear 13. transmission main shafts, 14. rear wet clutch driven gear 15. rear wet clutch active part 16. rear wet clutch secondary part 17. transmission countershafts, 18. rear wet clutch driving gear 19. reversing shafts, 20. countershaft reverse gear's 21. reverse idler gears, 22. jackshafts one grade of gear, 23 secondary gear of intermediate shaft, 24. third-speed gear of intermediate shaft, 25. jackshaft fourth gears, 26. jackshaft six shift of gears, 27. jackshafts 29. front wet clutch secondary part 30. front wet clutch active part 31. power shafts

Embodiment

Above-mentioned purpose of the present invention is achieved through the following technical solutions, in conjunction with the accompanying drawings 1 and accompanying drawing 2 be described as follows:

Described shifting of transmission gear train comprises: first constant mesh gear 1, five, six grades of synchronizers 2, first six shift of gears 4, first fourth gear 5, three, fourth gear synchronizer 6, first three-range transmission 7, first intermediate gear 8, one,

second gear synchronizer

9,10 casees reverse gears of first one grade gear are in conjunction with gear ring 11, first reverse gear 12, transmission main shaft 13, transmission countershaft 17, reverse gear shaft 19, countershaft reverse gear 20, reverse idler gear 21, one grade of gear 22 of jack shaft, secondary gear of intermediate shaft 23, third-speed gear of intermediate shaft 24, jack shaft fourth gear 25, jack shaft six shift of gears 26, the normal engagement driving gear 27 of jack shaft, clutch spindle 28.

Wet clutch active part 30, preceding wet clutch secondary part 29 before the wet clutch assembly comprises before described.Described back wet clutch assembly comprises back wet clutch driving gear 18, back wet clutch driven gear 14, afterwards closes device initiative part 15, back wet clutch secondary part 16 from wet type.

Preceding wet clutch assembly is arranged between input shaft 31 and the clutch spindle 28, and preceding wet clutch active part 30 links with input shaft 31, and preceding wet clutch secondary part 29 links with clutch spindle 28.Back wet clutch assembly is arranged in the end of transmission main shaft 13, back wet clutch driving gear 18 links by spline and transmission countershaft 17, driven gear 14 links with back wet clutch active part 15, and back wet clutch secondary part 16 links with transmission main shaft 13.

For heavy type and rear-drive automobile, when vehicle starting,, the existence of fluid has been arranged because the front clutch assembly is the wet clutch assembly, preceding wet clutch active part is softer when combining with secondary part, can solve dry clutch starting stationarity problem rambunctious in the past.In starting-up process, realize the automobile balance starting by the cohesive process of the driving and driven

part

30,29 of control wet type front clutch.

And in gearshift procedure, speed changer has following several running state, and changing second gear with one grade is that example is seen Fig. 1 and 2:

1, when main tank put in first gear operation, back wet clutch was in separated state.Power is from clutch spindle 28 inputs, be delivered to transmission countershaft 17 through first constant mesh gear 1 and the normal engagement driving gear 27 of jack shaft, then through one grade of gear 22 of jack shaft and first one grade of gear 10 be delivered to one, second gear synchronizer 9, thereby be delivered to transmission main shaft 13, thereby outputting power.

2, change to by one grade in the process of second gear when speed changer, speed changer one, second gear synchronizer separate with gear, and transmission main shaft 13 is transferring power not.At this moment, power passes to transmission countershaft 17 by the engagement of clutch spindle 28 by first constant mesh gear of main tank 1 and the normal engagement driving gear 27 of main tank jack shaft, successively through later wet clutch driving gear 18, back wet clutch driven gear 14, be delivered to wet clutch active part 15 afterwards then.Because this moment, the back wet clutch was in bonding state, then power can be delivered to back wet clutch secondary part 16 by back wet clutch active part 15, passes at last on the transmission main shaft 13.In this process, though the gear pair of speed changer transferring power not can realize that power does not interrupt gear shift by transmission countershaft 17 and back wet clutch outputting power.

3, hang when moving into second gear when speed changer, back wet clutch is in separated state.Power is from clutch spindle 28 inputs, be delivered to transmission countershaft 17 through first constant mesh gear 1 and the normal engagement driving gear 27 of jack shaft, then through secondary gear of intermediate shaft 23 and first intermediate gear 8 be delivered to one, second gear synchronizer 9, thereby be delivered to transmission main shaft 13, thereby outputting power.

4, in the above-mentioned gearshift procedure, the driving and driven

part

30,29 of preceding wet clutch is in bonding state.

Claims

1. heavy type and rear-drive automobile wet-type double-clutch automatic speed-change power transmission device, mainly consist of the following components: front clutch assembly, shifting of transmission gear assembly, speed changer gear selecting and shifting mechanism, back clutch assembly, it is characterized in that: described front and back clutch is wet clutch, wherein preceding wet clutch assembly is arranged between input shaft (31) and the clutch spindle (28), and back wet clutch assembly is arranged in the end of transmission main shaft (13).

2. heavy type according to claim 1 and rear-drive automobile wet-type double-clutch automatic speed-change power transmission device, it is characterized in that: wet clutch active part (30) links with input shaft (31) before described, and preceding wet clutch secondary part (29) links with clutch spindle (28); Back wet clutch driving gear (18) links with transmission countershaft (17), and driven gear (14) links with back wet clutch active part (15), and back wet clutch secondary part (16) links with transmission main shaft (13).