CN101725676A - Power-shifting transmission with nine gears - Google Patents
Power-shifting transmission with nine gears Download PDFInfo
- Publication number
- CN101725676A CN101725676A CN 201019087026 CN201019087026A CN101725676A CN 101725676 A CN101725676 A CN 101725676A CN 201019087026 CN201019087026 CN 201019087026 CN 201019087026 A CN201019087026 A CN 201019087026A CN 101725676 A CN101725676 A CN 101725676A
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- CN
- China
- Prior art keywords
- gear
- shaft
- jack shaft
- fixed gear
- speed changer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
- F16H2003/0935—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts with multiple countershafts comprising only one idle gear and one gear fixed to the countershaft
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention relates to a power-shifting transmission with nine gears, which comprises an input shaft, an output shaft, six wet multi-disc friction clutches and five intermediate shafts. Except the output shaft, each shaft is provided with a gear-shifting clutch, a movable gear and a fixed gear. By the combination of all clutches, the advance of six gears and the retreat of three gears can be realized. The transmission has the characteristics of short transmission route, high transmission efficiency, compact structure, a few components and the like, is particularly suitable for engineering machinery, such as a loader, a backhoe loader, a land leveller, a bulldozer and the like.
Description
Technical field
The present invention relates to the used power-shifting transmission of a kind of power-shifting transmission of engineering machinery, particularly loader, loader-digger, grader and bulldozer.
Background technique
Because the operating mode of engineering machinery is complicated and changeable, gear shift is frequent, for improving operating efficiency, does not need to cut off the power-shifting transmission of power when generally adopting gear shift, and the gear-changing component of power-shifting transmission is a Wet-type multi-disc formula friction clutch.The transmission system of China's engineering machinery adopts two turbine quaternary part fluid torque converters to add the form of planetary power-shifting transmission mostly.This type of belt drive has simple in structure, the advantage of processing ease, but there is following some shortcomings part: the one, the gear number of speed changer is less, be generally two forward gearss and one and retreat shelves, can not adapt to the operation of engineering machinery under the complex working condition condition, be difficult to guarantee that fluid torque converter works in efficient district; The 2nd, the transmission efficiency of two turbine quaternary part fluid torque converters is not high, and energy loss is bigger.Along with the development of technology, this type of belt drive more and more can not adapt to the needs of modern project machinery development.
Be the raising transmission efficiency, energy saving, external large-scale engineering machinery producer generally adopts the kind of drive of the power-shifting transmission of the higher three element fluid torque converter of efficient and many gears.At present, each large-engineering machinery producer of China also begins to adopt the three element fluid torque converter to add the kind of drive of gear power-shifting transmission gradually, but the required multiple-ratio power shift transmission of China engineering machinery producer mainly relies on the product of companies such as buying ZF, Caterpillar, DANA.Therefore, developing the multiple-ratio power shift transmission with independent intellectual property right has great importance.
By the described a kind of clockwise and anticlockwise gearbox of ZL95196765.7, its feature is that axial dimension is little, good rigidly, and the gear number is more.But it comes with some shortcomings: the one, and number of parts is more, and this speed changer has eight transmission shafts and 16 driving gears; The 2nd, the transmission chain length of some gear, transmission efficiency is on the low side, and its one grade of drive path that advances is longer, has six outer gearings.
By the described power-shifting transmission of ZL200320131395.6, be characterized in compact structure, part number is few, drive path is short, but it there are two deficiencys: the one, the gear number is few, can only realize first three back three at most; The 2nd, axial dimension is big, on the axle of this kind speed changer two friction clutches and a plurality of gear is arranged, and on the maximum axles four gears is arranged, thereby makes the rigidity variation of speed changer.
Goal of the invention
The objective of the invention is to overcome the deficiency that existing engineering machinery speed changer exists, provide that a kind of gear is many, good rigidly, volume is little, efficient is high, drive path is short, can adapt to the power-shifting transmission of market demand.
Technological scheme
Transmission scheme of the present invention adopts the fixed shaft type transmission, replaces the planetary transmission of traditional engineering machinery speed changer.In the vehicle of four-wheel drive, planet transmission needs transfer case, but the fixed shaft type speed changer does not need.In addition, the fixed shaft type speed changer has low cost of manufacture, and the power taking mouth is provided with advantages such as easy.For reducing the length of transmission shaft, improve rigidity, two gears at the most on any axle in the speed changer of the present invention.For strengthening speed changer and matching capacity torque-converters, transmission design of the present invention for advance six shelves with retreat three shelves.
Description of drawings
Fig. 1 transmission scheme schematic representation of the present invention;
Fig. 2 end on projection schematic representation of the present invention;
Fig. 3 velocity ratio expansion of the present invention schematic representation;
The graphic symbol explanation
1 fluid torque converter I input shaft
2 fixed gear II jack shafts
3 free gear III jack shafts
4 free gear IV jack shafts
5 fixed gear V jack shafts
6 free gear VI jack shafts
7 fixed gear VII output shafts
8 free gear Q1 gear shift sleeves
9 fixed gear Q2 gear shift sleeves
10 fixed gear HT gear shift sleeves
11 free gear L1 gear shift sleeves
12 fixed gear L2 gear shift sleeves
13 free gear L3 gear shift sleeves
14 fixed gears
Embodiment
The present invention will be described in detail below in conjunction with accompanying drawing.As shown in Figure 1, power-shifting transmission of the present invention and three element fluid torque converter match.Fluid torque converter (1) is installed in the front end of power-shifting transmission, is delivered to the input shaft of speed changer through fluid torque converter (1) from the power of motor output.Power-shifting transmission by input shaft (I), output shaft (VII), jack shaft (II, III, IV, V, VI), fixed gear (2,5,7,9,10,12,14), free gear (3,4,6,8,11,13) and gear shift sleeve (Q1, Q2, HT, L1, L2 L3) forms.Adopt the fixed shaft type structure, each on mission case fixed-site and be parallel to each other, be normal engagement driving between gear and the gear.
A fixed gear (2) is arranged on the input shaft (I), a gear shift sleeve (Q2) and a free gear (3), fixed gear (2) often meshes with free gear (4) and the maintenance of the free gear (6) on the jack shaft (III) on the jack shaft (II), and the fixed gear (5) on free gear (3) and the jack shaft (II) keeps engagement often.
A fixed gear (5) is arranged on the jack shaft (II), a gear shift sleeve (Q1) and a free gear (4), fixed gear (5) often meshes with free gear (3) and the maintenance of the fixed gear (9) on the jack shaft (IV) on the input shaft (I), and the fixed gear (2) on free gear (4) and the input shaft keeps engagement often.
A fixed gear (7) is arranged on the jack shaft (III), a gear shift sleeve (HT) and a free gear (6), fixed gear (7) often meshes with free gear (13) maintenance on the jack shaft (VI), and the fixed gear (2) on free gear (6) and the input shaft keeps engagement often.
Input shaft (I), jack shaft (II), jack shaft (III) and the gear that links to each other with them constitute a front end gear train, the power of input shaft can be shunted to three directions.
A fixing tooth (9) is arranged on the jack shaft (IV), a gear shift sleeve (L1) and a free gear (8), fixed gear (9) is gone up free gear (13) with free gear (11), the fixed gear (5) on the jack shaft (II) and jack shaft (VI) on the jack shaft (V) and is kept engagement often, and the fixed gear (10) on free gear (8) and the jack shaft (V) keeps engagement often.
A fixed gear (10) is arranged on the jack shaft (V), a gear shift sleeve (L3) and a free gear (11), fixed gear (10) often meshes with free gear (8) and the maintenance of the fixed gear (14) on the output shaft (VII) on the jack shaft (IV), and the fixed gear (9) on free gear (11) and the jack shaft (IV) keeps engagement often.
A fixed gear (12) is arranged on the jack shaft (VI), a gear shift sleeve (L2) and a free gear (13), fixed gear (12) often meshes with fixed gear (14) maintenance on the output shaft (VII), and fixed gear (7) on free gear (13) and the jack shaft (III) and the fixed gear (9) on the jack shaft (IV) keep engagement often.
Have only a fixed gear (14) on the output shaft (VII), fixed gear (10) on this gear and the jack shaft (V) and the fixed gear (12) on the jack shaft (VI) keep engagement often.
All gear shift sleeves among the present invention all are Multi-plate Wet Friction Clutch, when the clutch on certain root axle is closed, the friction plate of clutch compresses, the free gear on this root axle just with axle be connected as a whole, the axle with free gear between do not have relative rotation; When clutch disconnected, friction plate unclamped, and free gear can freely rotate around axle.
Closure and disconnection by different clutches can realize different drive paths, and according to actual demands of engineering, speed changer of the present invention can realize three advancing three to move back, four advance three to move back, five advance three and move back and six advance three and various ways such as move back.Now advancing three structures of moving back with six is that example is introduced, the working condition of each clutch and the drive path of gear such as following table.
| Gear | Engaging clutch | The gear of transferring power |
| Advance one grade | ??Q1，L1 | ??2-4-5-9-8-10-14 |
| Second gear advances | ??Q1，L2 | ??2-4-5-9-13-12-14 |
| The third gear of advancing | ??Q1，L3 | ??2-4-5-9-11-10-14 |
| The fourth gear of advancing | ??Q2，L1 | ??3-5-9-8-10-14 |
| Advance five grades | ??Q2，L2 | ??3-5-9-13-12-14 |
| Advance six grades | ??Q2，L3 | ??3-5-9-11-10-14 |
| The slow astern shelves | ??HT，L1 | ??2-6-7-13-9-8-10-14 |
| Retreat second gear | ??HT，L2 | ??2-6-7-13-12-14 |
| Retreat third gear | ??HT，L3 | ??2-6-7-13-9-11-10-14 |
Free gear (13) on the jack shaft (VI) back one grade and the back third gear transmission in serve as idle pulley effect.
Speed changer of the present invention has seven axles, 13 gears and six clutches, and the engagement number of times of forward gears is four times, and the engagement number of times of slow astern shelves and third gear is five times, and the engagement number of times that retreats second gear is three times.Compare with the existing speed changer that same gear number is arranged, it has, and number of parts is few, good rigidly, transmission efficiency advantages of higher.
Figure 2 shows that end on projection schematic representation of the present invention, it has shown the spatial position and the drive connection of each transmission shaft.
Speed changer of the present invention can add the velocity ratio expansion that one or more gears are realized wider range on the part transmission shaft.Fig. 3 is a transmission ratio expansion schematic representation, and going up at jack shaft (V) increases a fixed gear (15), and the fixed gear (14) on fixed gear (15) and the output shaft meshes, thereby realizes the expansion of velocity ratio.
Claims (4)
1. power-shifting transmission with nine gears, it is by an input shaft (I), an output shaft (VII), five jack shafts (II, III, IV, V, VI), six gear shift sleeve (Q1, Q2, HT, L1, L2, L3) and a plurality of free gear (3,4,6,8,11,13) and fixed gear (2,5,7,9,10,12,14) form, except that output shaft, a gear shift sleeve is all arranged on all the other the every axle, a free gear and a fixed gear is characterized in that: fixed gear (2) while on the input shaft (I) often meshes with free gear (4) and the maintenance of the free gear (6) on the jack shaft (III) on the jack shaft (II), and the free gear (3) on the input shaft (I) often meshes with fixed gear (5) maintenance on the jack shaft (II); Fixed gear (7) on the jack shaft (III) often meshes with free gear (13) maintenance on the jack shaft (VI); Free gear (8) on the jack shaft (IV) often meshes with fixed gear (10) maintenance on the jack shaft (V), and fixed gear (9) while and three gears (5,11,13) on the jack shaft (IV) keep engagement often; Fixed gear on the output shaft (14) while often meshes with fixed gear (10) and the maintenance of the fixed gear (12) on the jack shaft (VI) on the jack shaft (V); On the end on projection figure of speed changer, will there be each center of meshing relation to link to each other with line segment to gear, then constitute a pentagon and a quadrilateral; The first five root axle of speed changer (I, II, III, IV, V) with pentagonal array, (VI is VII) with quadrangular array for IV, V for back four axles of speed changer.
2. speed changer according to claim 1 is characterized in that: the topological structure of speed changer is a pentagon and a tetragonal combination, and pentagon and quadrilateral have a limit.
3. speed changer according to claim 1 is characterized in that: the free gear (14) on the jack shaft (5) is served as the role of idle pulley in two transmissions that retreat shelves.
4. speed changer according to claim 1 is characterized in that: can realize the velocity ratio expansion of wider range by add one or more gears on the part transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201019087026 CN101725676A (en) | 2010-02-11 | 2010-02-11 | Power-shifting transmission with nine gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201019087026 CN101725676A (en) | 2010-02-11 | 2010-02-11 | Power-shifting transmission with nine gears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101725676A true CN101725676A (en) | 2010-06-09 |
Family
ID=42447047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201019087026 Pending CN101725676A (en) | 2010-02-11 | 2010-02-11 | Power-shifting transmission with nine gears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101725676A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455235A (en) * | 2014-11-20 | 2015-03-25 | 四川大学 | Power shifting transmission suitable for loader |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4416930A1 (en) * | 1994-05-13 | 1995-11-16 | Zahnradfabrik Friedrichshafen | Under load switchable, multi-speed reversing gear |
| WO2005003592A1 (en) * | 2003-07-04 | 2005-01-13 | Zf Friedrichshafen Ag | Powershift gearbox for construction machines, especially for a tractor backhoe loader and a telescopic handler |
| WO2006128626A1 (en) * | 2005-06-02 | 2006-12-07 | Daimlerchrysler Ag | Dual clutch transmission for a motor vehicle |
| CN2890498Y (en) * | 2006-02-07 | 2007-04-18 | 任守信 | Tractor transmission case with synchronous laterally-arranged power output shaft |
| CN201763901U (en) * | 2010-02-11 | 2011-03-16 | 四川大学 | Power gearshift transmission with nine gears |
-
2010
- 2010-02-11 CN CN 201019087026 patent/CN101725676A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4416930A1 (en) * | 1994-05-13 | 1995-11-16 | Zahnradfabrik Friedrichshafen | Under load switchable, multi-speed reversing gear |
| WO2005003592A1 (en) * | 2003-07-04 | 2005-01-13 | Zf Friedrichshafen Ag | Powershift gearbox for construction machines, especially for a tractor backhoe loader and a telescopic handler |
| WO2006128626A1 (en) * | 2005-06-02 | 2006-12-07 | Daimlerchrysler Ag | Dual clutch transmission for a motor vehicle |
| CN2890498Y (en) * | 2006-02-07 | 2007-04-18 | 任守信 | Tractor transmission case with synchronous laterally-arranged power output shaft |
| CN201763901U (en) * | 2010-02-11 | 2011-03-16 | 四川大学 | Power gearshift transmission with nine gears |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455235A (en) * | 2014-11-20 | 2015-03-25 | 四川大学 | Power shifting transmission suitable for loader |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100609 |