CN209324954U - A kind of tractor infinitely variable transmission of twin shaft confluence output - Google Patents
A kind of tractor infinitely variable transmission of twin shaft confluence output Download PDFInfo
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- CN209324954U CN209324954U CN201920026149.5U CN201920026149U CN209324954U CN 209324954 U CN209324954 U CN 209324954U CN 201920026149 U CN201920026149 U CN 201920026149U CN 209324954 U CN209324954 U CN 209324954U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 230000002457 bidirectional effect Effects 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 9
- 230000001133 acceleration Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000012913 prioritisation Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a kind of tractor infinitely variable transmissions of twin shaft confluence output, including a 3Z-X planet row, a pump control hydraulic motor, and multiple groups clutch and gear pair, infinitely variable transmission is shunted compared to traditional Multi sectional hydraulic power, the pump control hydraulic motor of the gearbox is in transregional section of acceleration without changing motor drive shaft acceleration direction, when i.e. span accelerates to the operation of pump control hydraulic motor as the gearbox of only one section, change a section process continuous and stable, it is easily controllable, structure is simple, compact, advantageously reduces cost.
Description
Technical field
The utility model relates to tractor infinitely variable transmission field more particularly to a kind of tractors of twin shaft confluence output
Infinitely variable transmission.
Background technique
Hydraulic power shunts infinitely variable transmission has mechanically operated high efficiency and hydraulic drive bearing capacity strong simultaneously
Feature is ideal tractor stepless speed regulating method.Previous Multi sectional hydraulic power shunting infinitely variable transmission not only needs more
Group wet clutch or brake complete section switching, and under different sections pump control hydraulic motor pumpage control law
It is not consistent, cause gearbox designs and control process complex, such as: for two-row planetary gear alternately operating
Hydraulic power shunt gearbox, when working under some section, Running Speed of Tractor with motor drive shaft revolving speed increase
And promoted, and after it shifts to adjacent section, Running Speed of Tractor is but promoted with the reduction of motor drive shaft revolving speed, this just leads
Different sections are caused to correspond to different pump control hydraulic motor control rules.
Summary of the invention
In view of the shortcomings of the prior art, the utility model provides a kind of twin shaft confluence output tractor infinitely variable transmission,
Structure is simple, section is few, and pump control hydraulic motor control rule is single.
The utility model is achieved by the following technical solution, and provides a kind of stepless change of tractor of twin shaft confluence output
Fast case, including power input shaft, pump control hydraulic motor, 3Z-X planet row and power output shaft, the power input shaft are equipped with
Pump shaft I gear；
The pump shaft of pump control hydraulic motor is equipped with the pump shaft II gear engaged with pump shaft I gear, the horse of pump control hydraulic motor
Motor drive shaft I gear is disposed on up to axis；
The 3Z-X planet row includes duplex sun gear, double-planetary gear, the sun gear for being connected with sun wheel shaft and affixed
The gear ring of rack gear axis, double-planetary gear are connect by planet carrier with planet carrier shaft, gear ring axis, sun wheel shaft, planet carrier shaft and
Duplex sun gear coaxial line, the right side gear of duplex sun gear are engaged with the left side gear of double-planetary gear, duplex sun gear
Left side gear is engaged with pump shaft I gear, and the right side gear of double-planetary gear is engaged with gear ring, sun gear respectively；
R sections of I gears and L sections of I gears are connected with by R-L sections of bidirectional clutches on the planet carrier shaft；
The gear ring axis is equipped with the motor drive shaft II gear engaged with motor drive shaft I gear；
H sections of I gears are connected with by H sections of clutches in the sun wheel shaft；
The power output shaft is equipped with the H section II gear engaged with H sections of I gears, the L section II tooth engaged with L sections of I gears
Wheel, and the R section II gear engaged by idle pulley with R sections of I gears.
This programme is in use, power input shaft is connected with engine, power output shaft and tractor rear axle central transmission tooth
Wheel set is connected, and pump control hydraulic motor without changing motor drive shaft acceleration direction, i.e., is controlled pump when span accelerates in transregional section of acceleration
The operation of hydraulic motor changes a section process continuous and stable as the gearbox of only one section, easily controllable.
As optimization, R-L sections of bidirectional clutches and H sections of clutches are wet clutch.This prioritization scheme uses wet type
Clutch is both able to satisfy required function, and power transmitting is smooth, and long service life, failure rate is low, is more suitable for for tractor
On.
As optimization, R-L sections of bidirectional clutches include the wet clutch of two self contained functions.This prioritization scheme pass through by
R-L sections of bidirectional clutches are replaced by the wet clutch of two self contained functions, not only reduce manufacture difficulty, and are overhauled also more
Add conveniently.
As optimization, the pump of pump control hydraulic motor is variable pump, and motor is fixed displacement motor or variable displacement motor.
A kind of application method of the tractor infinitely variable transmission of twin shaft confluence output, includes the following steps:
1, the preparation before tractor starting: R-L sections of bidirectional clutches are in middle position, H sections of clutch separations, pump control hydraulic horse
The pumpage reached is 0；
2, tractor starting and L sections of stepless speed regulations: starting engine, driving power input shaft rotation will then pump draining
After the pumpage of pressure motor is adjusted to maximum, make engagement on the right side of R-L sections of bidirectional clutches, while left side separates, gearbox works in L
Section；Gradually reversely reduce the pumpage of pump control hydraulic motor, the revolving speed of power input shaft steps up, and tractor starts starting simultaneously
In L sections of stepless speed regulations；
3, tractor H sections of stepless speed regulation: after L sections of completions accelerate, R-L sections of bidirectional clutches are made to return to middle position, while making H
Section clutch engagement, gearbox switch to H sections；Continue the reversed pumpage for adjusting pump control hydraulic motor, power input shaft turns
Speed further increases, and tractor is in H sections of stepless speed regulations；When the pumpage of pump control hydraulic motor is adjusted to opposite direction maximum value, drag
Machine drawing reaches its maximum travel speed；
4, tractor fall back driving cycle: if you need to make tractor fall back traveling, engine starting when make R-L sections it is two-way from
Clutch left-interface, at this point, tractor works in R sections；The pumpage of pump control hydraulic motor is adjusted, tractor is under retroversion state
Realize stepless speed regulation.
The utility model has the following beneficial effects:
1, shunt infinitely variable transmission compared to traditional Multi sectional hydraulic power, the pump control hydraulic motor of the gearbox across
Operation and only one area without changing motor drive shaft acceleration direction when section accelerates, i.e., when span accelerates to pump control hydraulic motor
The gearbox of section is the same, changes a section process continuous and stable, easily controllable.
2, the planet carrier shaft of 3Z-X planet row and sun wheel shaft transmit power after can be used as confluence axial direction, structure is simple,
It is compact, advantageously reduce cost.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
It is as shown in the figure:
1, power input shaft, 2, pump shaft I gear, 3, pump shaft II gear, 4, pump shaft, 5, pump control hydraulic motor, 6, motor drive shaft,
7, motor drive shaft I gear, 8, sun gear, 9, motor drive shaft II gear, 10, H sections of I gears, 11, H sections of clutches, 12, sun wheel shaft,
13, H sections of II gears, 14,3Z-X planet row, 15, gear ring axis, 16, gear ring, 17, double-planetary gear, 18, planet carrier, 19, duplex
Sun gear, 20, L sections of II gears, 21, R sections of II gears, 22, power output shaft, 23, idle pulley, 24, planet carrier shaft, 25, R sections of I teeth
Wheel, 26, R-L sections of bidirectional clutches, 27, L sections of I gears.
Specific embodiment
In order to clarify the technical characteristics of the invention, being illustrated below by specific embodiment to this programme.
A kind of tractor infinitely variable transmission of twin shaft confluence output as shown in Figure 1, including power input shaft 1, pump control hydraulic
Motor 5,3Z-X planet row 14 and power output shaft 22, the power input shaft 1 are equipped with pump shaft I gear 2, pump control hydraulic motor
5 pump is variable pump, and motor is fixed displacement motor or variable displacement motor.
The pump shaft 4 of pump control hydraulic motor 5 is equipped with the pump shaft II gear 3 engaged with pump shaft I gear 2, pump control hydraulic motor 5
Motor drive shaft 6 on be disposed with motor drive shaft I gear 7.
3Z-X planet row 14 includes duplex sun gear 19, double-planetary gear 17,8 and of sun gear for being connected with sun wheel shaft 12
The gear ring 16 of affixed rack gear axis 15, double-planetary gear 17 are connect by planet carrier 18 with planet carrier shaft 24, gear ring axis 15, the sun
19 coaxial line of wheel shaft 12, planet carrier shaft 24 and duplex sun gear, right side gear and the double-planetary gear 17 of duplex sun gear 19
Left side gear engagement, the left side gear of duplex sun gear 19 are engaged with pump shaft I gear 2, the right side gear point of double-planetary gear 17
It is not engaged with gear ring 16, sun gear 8.Planet carrier shaft 24 and duplex sun gear 19 are located at the left side of 3Z-X planet row 14, sun gear
Axis 12 and gear ring axis 15 are located at the right side of 3Z-X planet row 14, and planet carrier shaft 24 passes through the center of duplex sun gear 19, sun gear
Axis 12 passes through the center of gear ring axis 15.
R sections of I gears 25 and L sections of I gears 27 are connected with by R-L sections of bidirectional clutches 26 on planet carrier shaft 24；The tooth
Circle axis 15 is equipped with the motor drive shaft II gear 9 engaged with motor drive shaft I gear 7；
H sections of I gears 10 are connected with by H sections of clutches 11 in the sun wheel shaft 12.
Power output shaft 22 is equipped with the H section II gear 13 engaged with H sections of I gears 10, the L section engaged with L sections of I gears 27
II gear 20, and the R section II gear 21 engaged by idle pulley 23 with R sections of I gears 25.
As prioritization scheme, R-L sections of bidirectional clutches 26 of the present embodiment and H sections of clutches 11 are wet clutch, and
And R-L sections of bidirectional clutches 26 include the wet clutch of two self contained functions.
The application method of the tractor infinitely variable transmission of above-mentioned twin shaft confluence output, includes the following steps:
1, the preparation before tractor starting: R-L sections of bidirectional clutches 26 are in middle position, and H sections of clutches 11 separate, and pump draining
The pumpage of pressure motor 5 is 0；
2, tractor starting and L sections of stepless speed regulations: starting engine, driving power input shaft 1 rotate, and will then pump draining
After the pumpage of pressure motor 5 is adjusted to maximum, make to engage on the right side of R-L sections of bidirectional clutches 26, while left side separates, gearbox work
In L sections；Gradually reversely reduce the pumpage of pump control hydraulic motor 5, the revolving speed of power output shaft 22 steps up, and tractor starts
It starts to walk and in L sections of stepless speed regulations；
3, tractor H sections of stepless speed regulation: after L sections of completions accelerate, R-L sections of bidirectional clutches 26 are made to return to middle position, simultaneously
Engage H sections of clutches 11, gearbox switches to H sections；Continue the reversed pumpage for adjusting pump control hydraulic motor 5, power output
The revolving speed of axis 22 further increases, and tractor is in H sections of stepless speed regulations；When the pumpage of pump control hydraulic motor 5 is adjusted to opposite direction most
When big value, tractor reaches its maximum travel speed；
4, tractor fall back driving cycle: if you need to make tractor fall back traveling, engine starting when make R-L sections it is two-way from
26 left-interface of clutch, at this point, tractor works in R sections；The pumpage of pump control hydraulic motor 5 is adjusted, tractor is falling back shape
Stepless speed regulation is realized under state.
Shunt infinitely variable transmission compared to traditional Multi sectional hydraulic power, the pump control hydraulic motor 5 of the gearbox across
It is not necessarily to change motor drive shaft acceleration direction when section accelerates, changes a section process continuous and stable, it is easily controllable；And structure is simple, compact,
Advantageously reduce cost.
Certainly, above description is also not limited to the example above, and technical characteristic of the utility model without description can lead to
It crosses or realizes that details are not described herein using the prior art；Above embodiments and attached drawing are merely to illustrate the technology of the utility model
Scheme is not limitations of the present invention, and the utility model is described in detail referring to preferred embodiment, this
Field it is to be appreciated by one skilled in the art that those skilled in the art institute in the essential scope of the utility model
The variations, modifications, additions or substitutions made without departure from the objective of the utility model, want by the right that also should belong to the utility model
Seek protection scope.
Claims (4)
1. a kind of tractor infinitely variable transmission of twin shaft confluence output, it is characterised in that: including power input shaft (1), pump draining
Pressure motor (5), 3Z-X planet row (14) and power output shaft (22), the power input shaft (1) are equipped with pump shaft I gear (2)；
The pump shaft (4) of pump control hydraulic motor (5) is equipped with the pump shaft II gear (3) engaged with pump shaft I gear (2), pump control hydraulic
Motor drive shaft I gear (7) is disposed on the motor drive shaft (6) of motor (5)；
The 3Z-X planet row (14) includes duplex sun gear (19), double-planetary gear (17), is connected with sun wheel shaft (12)
The gear ring (16) of sun gear (8) and affixed rack gear axis (15), double-planetary gear (17) pass through planet carrier (18) and planet carrier shaft
(24) it connects, gear ring axis (15), sun wheel shaft (12), planet carrier shaft (24) and duplex sun gear (19) coaxial line, the duplex sun
The right side gear of wheel (19) is engaged with the left side gear of double-planetary gear (17), the left side gear and pump shaft of duplex sun gear (19)
I gear (2) engagement, the right side gear of double-planetary gear (17) are engaged with gear ring (16), sun gear (8) respectively；
R sections of I gears (25) and L sections of I gears are connected with by R-L sections of bidirectional clutches (26) on the planet carrier shaft (24)
(27)；
The gear ring axis (15) is equipped with the motor drive shaft II gear (9) engaged with motor drive shaft I gear (7)；
H sections of I gears (10) are connected with by H sections of clutches (11) on the sun wheel shaft (12)；
The power output shaft (22) is equipped with the H section II gear (13) engaged with H sections of I gears (10) and L sections of I gears (27)
The L section II gear (20) of engagement, and the R section II gear (21) engaged by idle pulley (23) with R sections of I gears (25).
2. a kind of tractor infinitely variable transmission of twin shaft confluence output according to claim 1, it is characterised in that: R-L sections
Bidirectional clutch (26) and H sections of clutches (11) are wet clutch.
3. a kind of tractor infinitely variable transmission of twin shaft confluence output according to claim 1, it is characterised in that: R-L sections
Bidirectional clutch (26) includes the wet clutch of two self contained functions.
4. a kind of tractor infinitely variable transmission of twin shaft confluence output according to claim 1, it is characterised in that: pump draining
The pump of pressure motor (5) is variable pump, and motor is fixed displacement motor or variable displacement motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920026149.5U CN209324954U (en) | 2019-01-08 | 2019-01-08 | A kind of tractor infinitely variable transmission of twin shaft confluence output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920026149.5U CN209324954U (en) | 2019-01-08 | 2019-01-08 | A kind of tractor infinitely variable transmission of twin shaft confluence output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209324954U true CN209324954U (en) | 2019-08-30 |
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ID=67730813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920026149.5U Expired - Fee Related CN209324954U (en) | 2019-01-08 | 2019-01-08 | A kind of tractor infinitely variable transmission of twin shaft confluence output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209324954U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677824A (en) * | 2020-06-12 | 2020-09-18 | 吉林大学 | In-wheel two-gear automatic speed change mechanism of compound planetary gear train and gear shifting control method thereof |
| CN114017484A (en) * | 2021-11-05 | 2022-02-08 | 南京农业大学 | Three-planetary-row three-section type hydraulic mechanical continuously variable transmission of high-power tractor |
-
2019
- 2019-01-08 CN CN201920026149.5U patent/CN209324954U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677824A (en) * | 2020-06-12 | 2020-09-18 | 吉林大学 | In-wheel two-gear automatic speed change mechanism of compound planetary gear train and gear shifting control method thereof |
| CN114017484A (en) * | 2021-11-05 | 2022-02-08 | 南京农业大学 | Three-planetary-row three-section type hydraulic mechanical continuously variable transmission of high-power tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190830 |