CN108825744A - A kind of Hydromechanical continuous variable transmission device - Google Patents
A kind of Hydromechanical continuous variable transmission device Download PDFInfo
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- CN108825744A CN108825744A CN201811050735.XA CN201811050735A CN108825744A CN 108825744 A CN108825744 A CN 108825744A CN 201811050735 A CN201811050735 A CN 201811050735A CN 108825744 A CN108825744 A CN 108825744A
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- gear
- shaft
- transmission
- hollow
- output shaft
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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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
-
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention proposes a kind of Hydromechanical continuous variable transmission device, solve the problems, such as that the prior art drive system structure is complicated.The device includes engine and the hydraulic buncher that is connected on the engine, hydraulic buncher includes fixed displacement motor and variable pump, the spindle nose of variable pump is connected with transmission shaft by connector sleeve, the gear ring that can be rotated about is coaxially installed on transmission shaft, the planet carrier that can be rotated about also is coaxially installed on transmission shaft, multiple planet wheel spindles are uniformly installed on planet carrier, double-planetary gear is equipped on each planet wheel spindle, the outside of transmission shaft is successively arranged with coaxial Hollow Transmission Shafts from inside to outside, Hollow Transmission Shafts are fixed on the planet carrier, transmission shaft is also arranged in parallel with output shaft, bell housing is also fixedly installed on output shaft, the periphery of output shaft is also arranged with hollow shaft, reverse gear wheel shaft in parallel is additionally provided between transmission shaft and output shaft.Drive system structure of the invention is simple, has good practicability.
Description
Technical field
The present invention relates to transmission device technical fields, particularly relate to a kind of stepless change of hydraulic machinery applied on tractor
Fast transmission device.
Background technique
It is all mechanical type shifting that country's tractor is most of at present, and a small amount of is power shifting, these shift modes are respectively kept off
Transmission ratio is discontinuous, can not select suitable transmission ratio according to vehicle load, oil consumption is still higher.
Hydromechanical continuous variable transmission tractor, working principle are dynamic to transmit respectively using hydraulic and machine driving
Power, transmission efficiency is higher, and transmission ratio can interrupt power transmitting with step-less adjustment, adjustment process, can control engine
Always it works under peak efficiency operating condition.But this Tractor Power Train is with high content of technology, and power train layout difficulty is big, especially
Miniaturization Design difficulty is big, and there are no the sale of domestic Hydromechanical continuous variable transmission tractor currently on the market.
Summary of the invention
The present invention proposes a kind of Hydromechanical continuous variable transmission device, and it is multiple to solve the prior art drive system structure
Miscellaneous problem.
The technical proposal of the invention is realized in this way：Hydromechanical continuous variable transmission device, including engine (1) and
The hydraulic buncher (4) being connected on the engine (1), the hydraulic buncher (4) includes fixed displacement motor
(4.1) and variable pump (4.2), the spindle nose of the variable pump (4.2) are connected with transmission shaft (11), the biography by connector sleeve (3)
It is coaxially installed with the gear ring (5) that can be rotated about on moving axis (11), is fixed with gear (Z4) and internal gear on the gear ring (5)
(Z9)；
Fixed displacement motor (4.1) driving has gear (Z3), and the gear (Z3) is engaged with gear (Z4), to realize tooth
Take turns (Z3) driven gear ring (5) rotation；
It is also coaxially installed with the planet carrier (7) that can be rotated about on the transmission shaft (11), is evenly distributed on the planet carrier (7)
It is equipped with multiple planet wheel spindles (15), is equipped with double-planetary gear (6), the double-planetary gear on each planet wheel spindle (15)
(6) gear (Z5) and gear (Z7) are machined on；
It is fixed with gear (Z6) on the transmission shaft (11), the gear (Z6) is engaged with gear (Z5), the transmission shaft
(11) gear (Z8) that can be rotated about also is arranged on, the gear (Z7) is meshed with gear (Z8), internal gear (Z9)；
The outside of the transmission shaft (11) is successively arranged with coaxial Hollow Transmission Shafts (9) and Hollow Transmission Shafts from inside to outside
(8), the Hollow Transmission Shafts (8) are fixed on the planet carrier (7), and the Hollow Transmission Shafts (9) are fixed on the gear
(Z8) on, it is fixed with gear (Z10) and gear (Z15) on the Hollow Transmission Shafts (8), is fixed on the Hollow Transmission Shafts (9)
There is gear (Z12)；
The transmission shaft (11) is also arranged in parallel with output shaft (13), is arranged on the output shaft (13) and to rotate about
Gear (Z11), the gear (Z11) are engaged with gear (Z10), are also fixedly installed with bell housing on the output shaft (13)
(10), be respectively equipped with clutch (K1) and clutch (K2) in the bell housing (10), the clutch (K1) for realizing
Clutch between gear (Z11) and output shaft (13)；
The periphery of the output shaft (13) is also arranged with hollow shaft (14), and the clutch (K2) is for realizing hollow shaft
(14) clutch between output shaft (13) is arranged with the gear (Z16) and gear rotated about on the hollow shaft (14)
(Z13), the gear (Z13) is engaged with gear (Z12), is additionally provided with engaging sleeve (12), the engagement on the hollow shaft (14)
Set (12) is used to gear (Z16) or gear (Z13) being fixed on hollow shaft (14)；
Reverse gear wheel shaft (16) in parallel, the reverse gear wheel are additionally provided between the transmission shaft (11) and output shaft (13)
Axis (16) is equipped with gear (Z14), and the gear (Z14) is engaged with gear (Z15), gear (Z16).
It is filled as a preferred embodiment, being equipped with damping between the engine (1) and hydraulic buncher (4)
It sets (2), the damping device (2) connects the variable pump (4.2).
As a preferred embodiment, the number of the planet wheel spindle (15) is three.
After above-mentioned technical proposal, the beneficial effects of the invention are as follows：Transmission device of the invention utilizes hydraulic stepless
Speed changer realizes the transmitting of power, and structure is simple, small in size, reliable operation, is coaxially disposed between transmission shaft and engine, speed change
Box structure arrangement simplifies, and transmits power using double-planetary gear, compared to conventional multistage planetary gear structure, structure is simply tight
It gathers, expands range of infinitely variable speeds eventually by two clutches, bigger power transfer can be born.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the principle schematic diagram of an embodiment of the present invention；
Fig. 2 is the schematic diagram of the embodiment low-speed forward operating condition；
Fig. 3 is that the embodiment advances at utmost speed the schematic diagram of operating condition；
Fig. 4 is the schematic diagram that the embodiment retreats operating condition；
In figure：1- engine；2- damping device；3- connector sleeve；The hydraulic buncher of 4-；4.1- fixed displacement motor；4.2-
Variable pump；4.3- electrodeless speed regulator；5- gear ring；6- double-planetary gear；7- planet carrier；8,9- Hollow Transmission Shafts；10- clutch
Shell；11- transmission shaft；12- engaging sleeve；13- output shaft；14- hollow shaft；15- planet wheel spindle；16- reverse gear wheel shaft；Z3,Z4,Z5,
Z6, Z7, Z8, Z9, Z10, Z11, Z12, Z13, Z14, Z15, Z16- gear；K1, K2- clutch.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment：
As shown in Figure 1, being a kind of principle schematic diagram of Hydromechanical continuous variable transmission device of the present invention, including liquid
Press stepless transmission 4, gear ring 5, double-planetary gear 6, planet carrier 7 etc..The rear end of engine 1 is equipped with damping device 2, damping dress
The rear end for setting 2 is connected to the spindle nose of variable pump 4.2, and the other end spindle nose of variable pump 4.2 connects transmission shaft 11 by connector sleeve 3,
Gear Z3 is installed on the axis of fixed displacement motor 4.1, gear z4 and internal gear z9 are installed on gear ring 5, gear ring 5 and transmission shaft 11 are same
Axis is installed and can be enclosed and rotates about, and gear z3 is engaged with gear z4, and fixed displacement motor 4.1 is rotated by gear z3 driven gear ring 5.Row
7 rear end of carrier is fixedly installed with Hollow Transmission Shafts 8, and planet carrier 7 is co-axially mounted with transmission shaft 11 and can enclose and rotates about.Planet carrier
7 front ends are uniformly installed there are three planet wheel spindle 15, and double-planetary gear 6 is hingedly mounted on planet carrier 7 by planet wheel spindle 15.Duplex
Gear z5 and gear z7 are machined on planetary gear 6, gear z5 is engaged with gear z6, and gear z7 is engaged with gear z8, internal gear z9,
For transmitting power.Gear z6 is fixedly mounted on transmission shaft 11, can impart power to the gear z5 on double-planetary gear 6.
The rear end gear z8 is equipped with Hollow Transmission Shafts 9, is Hollow Transmission Shafts 8 outside Hollow Transmission Shafts 9, and inside is transmission shaft 11, three
It is co-axially mounted.Gear z10 and gear z15 are installed, gear z10 is engaged with gear z11, and gear z11 is empty in Hollow Transmission Shafts 8
Set is mounted on output shaft 13, and bell housing 10 is fixedly installed on output shaft 13, and there are clutch k1 and clutch in inside respectively
Gear z11 can be fixed on output shaft 13 by k2, clutch k1, and hollow shaft 14 can be fixed to output shaft 13 by clutch k2
On.Gear z14 is hinged on gear box by the wheel shaft 16 that reverses gear, and gear z14 is engaged with gear z15, gear z16.Gear z16
It is mounted in hollow shaft 14 with gear z13 empty set, engaging sleeve 12 is installed in hollow shaft 14, engaging sleeve 12 can be by gear z13
Or gear z16 is fixed in hollow shaft 14.9 rear end of Hollow Transmission Shafts is fixedly installed with gear z12, and gear z12 is nibbled with gear z13
It closes.11 rear end of transmission shaft connects tractor PTO transmission device (not showing in figure), and 13 rear end of output shaft connects tractor end
Power train (is not shown) in figure, the power of transmitting is transmitted to wheel, for driving vehicle to advance.
Hydraulic continuously variable transmission 4 includes fixed displacement motor 4.1, variable pump 4.2, electrodeless speed regulator 4.3, by adjusting electrodeless tune
Fast device 4.3 can make the output revolving speed of fixed displacement motor 4.1 step-less adjustment between reversed maximum (top) speed and positive maximum (top) speed.
In order to preferably describe the working principle of the invention, working condition of the invention is three kinds of works shown in Fig. 2,3,4
One of condition is manually controlled by operator or controls (not shown) by electronic control unit.
Fig. 2 show the schematic diagram (low speed of Hydromechanical continuous variable transmission device of the invention under the first operating condition
Advance operating mode).Engine 1 transfers power to the mechanically and hydraulically part of output shaft 13 under the operating condition.When work, from
Clutch k1 combines (engagement), and clutch k2 is disconnected.Therefore, power transmission line is：Gear z6 → gear z5 → planet wheel spindle 15
7 → Hollow Transmission Shafts of → planet carrier, 8 → gear z10 → gear z11 → clutch k1 → 10 → output shaft of bell housing 13.
In order to change the speed (still maintaining low-speed forward mode) of output shaft 13, the adjustable electrodeless speed regulator of operator
4.3 adjust the revolving speed of hydraulic motor 4.1, then the revolving speed of adjustable gear ring 5, finally makes the velocity variations of output shaft 13.By
It is more much bigger than gear z5 in the diameter of gear z6, high torque and the slow-speed of revolution are generated on output shaft 13.
In order to be switched to the operating condition that advances at utmost speed at this moment, electronic control unit controls clutch k1 and disconnects, clutch k2 knot
It closes (shown in Fig. 3), meanwhile, gear z13 is fixed in hollow shaft 14 by mesh control set 12.At this point, power transmission line is：Tooth
Wheel z6 → gear z5 → 6 → gear of double-planetary gear z7 → gear z8 → 9 → gear of Hollow Transmission Shafts z12 → gear z13 → is nibbled
12 → hollow shaft of trap, 14 → clutch k2 → 10 → output shaft of bell housing 13.
Since under the operating condition of Fig. 3, the rotation of output shaft 13 is driven by gear z6 → gear z5 → gear z7 → gear z8
Dynamic, due to have passed through two-stage speed-raising, so that the rotation speed of gear z13 is faster than the speed of gear z11, to make output shaft 13
Revolving speed increase.
It similarly with a upper operating condition, is the speed (while still in high speed mode) for changing output shaft 13, operator can adjust
Electrodeless speed regulator 4.3 is saved to adjust the revolving speed of hydraulic motor 4.1, then the revolving speed of adjustable gear ring 5, finally makes output shaft 13
Velocity variations.
Fig. 4 is schematic diagram of the present invention in the third operating condition, i.e. retrogressing operating mode.Under such conditions, engaging sleeve 12
First that gear z16 and hollow shaft 14 is fixed, clutch k2 combines (as shown in Figure 4).Therefore, gear z15 is still with identical side
To rotation, gear z14 reverses the direction of rotation of gear z16, to make the direction of rotation of output shaft 13 change, to make vehicle
It retreats.As previously mentioned, by adjust electrodeless speed regulator 4.3 can regulation output shaft 13 speed.
Drive system structure of the invention is simple, small in size, reliable operation, has good practicability.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (3)
1. Hydromechanical continuous variable transmission device, it is characterised in that：Including engine (1) and it is connected to the engine (1)
On hydraulic buncher (4), the hydraulic buncher (4) includes fixed displacement motor (4.1) and variable pump (4.2), institute
The spindle nose for stating variable pump (4.2) is connected with transmission shaft (11) by connector sleeve (3), and being coaxially installed on the transmission shaft (11) can
The gear ring (5) rotated about is fixed with gear (Z4) and internal gear (Z9) on the gear ring (5)；
Fixed displacement motor (4.1) driving has gear (Z3), and the gear (Z3) is engaged with gear (Z4), to realize gear
(Z3) driven gear ring (5) rotates；
It is also coaxially installed with the planet carrier (7) that can be rotated about on the transmission shaft (11), is uniformly installed on the planet carrier (7)
Have multiple planet wheel spindles (15), be equipped with double-planetary gear (6) on each planet wheel spindle (15), on the double-planetary gear (6)
It is machined with gear (Z5) and gear (Z7)；
It is fixed with gear (Z6) on the transmission shaft (11), the gear (Z6) is engaged with gear (Z5), the transmission shaft (11)
On be also arranged with the gear (Z8) that can be rotated about, the gear (Z7) is meshed with gear (Z8), internal gear (Z9)；
The outside of the transmission shaft (11) is successively arranged with coaxial Hollow Transmission Shafts (9) and Hollow Transmission Shafts (8) from inside to outside,
The Hollow Transmission Shafts (8) are fixed on the planet carrier (7), and the Hollow Transmission Shafts (9) are fixed on the gear (Z8),
It is fixed with gear (Z10) and gear (Z15) on the Hollow Transmission Shafts (8), is fixed with gear on the Hollow Transmission Shafts (9)
(Z12)；
The transmission shaft (11) is also arranged in parallel with output shaft (13), is arranged with the gear rotated about on the output shaft (13)
(Z11), the gear (Z11) is engaged with gear (Z10), is also fixedly installed with bell housing (10) on the output shaft (13),
It is respectively equipped with clutch (K1) and clutch (K2) in the bell housing (10), the clutch (K1) is for realizing gear
(Z11) clutch between output shaft (13)；
The periphery of the output shaft (13) is also arranged with hollow shaft (14), the clutch (K2) for realizing hollow shaft (14) with
Clutch between output shaft (13) is arranged with the gear (Z16) and gear (Z13) rotated about, institute on the hollow shaft (14)
It states gear (Z13) to engage with gear (Z12), be additionally provided with engaging sleeve (12) on the hollow shaft (14), the engaging sleeve (12) is used
It is fixed on hollow shaft (14) in by gear (Z16) or gear (Z13)；
Reverse gear wheel shaft (16) in parallel, the reverse gear wheel shaft are additionally provided between the transmission shaft (11) and output shaft (13)
(16) it is equipped with gear (Z14), the gear (Z14) is engaged with gear (Z15), gear (Z16).
2. Hydromechanical continuous variable transmission device as described in claim 1, it is characterised in that：The planet wheel spindle (15)
Number is three.
3. Hydromechanical continuous variable transmission device as described in claim 1, it is characterised in that：The engine (1) and liquid
It presses and is equipped with damping device (2) between buncher (4), the damping device (2) connects the variable pump (4.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811050735.XA CN108825744A (en) | 2018-09-10 | 2018-09-10 | A kind of Hydromechanical continuous variable transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811050735.XA CN108825744A (en) | 2018-09-10 | 2018-09-10 | A kind of Hydromechanical continuous variable transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108825744A true CN108825744A (en) | 2018-11-16 |
Family
ID=64149213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811050735.XA Pending CN108825744A (en) | 2018-09-10 | 2018-09-10 | A kind of Hydromechanical continuous variable transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825744A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488740A (en) * | 2019-01-02 | 2019-03-19 | 石河子大学 | A kind of single bipolar system hydraulic mechanical stepless gearbox |
| CN111059277A (en) * | 2019-12-24 | 2020-04-24 | 潍柴动力股份有限公司 | Gear shifting control method and device |
-
2018
- 2018-09-10 CN CN201811050735.XA patent/CN108825744A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488740A (en) * | 2019-01-02 | 2019-03-19 | 石河子大学 | A kind of single bipolar system hydraulic mechanical stepless gearbox |
| CN109488740B (en) * | 2019-01-02 | 2024-09-24 | 石河子大学 | Single-row bipolar type hydraulic mechanical stepless speed changer |
| CN111059277A (en) * | 2019-12-24 | 2020-04-24 | 潍柴动力股份有限公司 | Gear shifting control method and device |
| CN111059277B (en) * | 2019-12-24 | 2021-03-16 | 潍柴动力股份有限公司 | Gear shifting control method and device |
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