KR101522497B1 - Transmission of Vehicle - Google Patents
Transmission of Vehicle Download PDFInfo
- Publication number
- KR101522497B1 KR101522497B1 KR1020140029629A KR20140029629A KR101522497B1 KR 101522497 B1 KR101522497 B1 KR 101522497B1 KR 1020140029629 A KR1020140029629 A KR 1020140029629A KR 20140029629 A KR20140029629 A KR 20140029629A KR 101522497 B1 KR101522497 B1 KR 101522497B1
- Authority
- KR
- South Korea
- Prior art keywords
- gear
- shaft
- clutch
- drive
- driven
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/082—Transmissions; Gearings; Power distribution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/20—Off-Road Vehicles
- B60Y2200/22—Agricultural vehicles
- B60Y2200/221—Tractors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Structure Of Transmissions (AREA)
Abstract
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission suitable for a working vehicle such as a tractor, and more particularly to a transmission suitable for a working vehicle such as a tractor and the like. It is.
Hydraulic mechanical transmission (HMT) is used as a power transmission system of a working vehicle such as a tractor by combining a hydraulic type continuously variable transmission (HST) and a mechanical differential.
The hydraulic mechanical transmission is a transmission designed to maximize the benefits of both HST with excellent operability and differential gear with excellent transmission efficiency.
In addition, a conventional working vehicle generally uses a multi-channel transmission having two or more power transmission paths using one or more planetary gears and a continuously variable transmission. This is because, by using a continuously variable transmission in one path, It is an unauthorized transmission.
However, most of the conventional continuously variable-speed tractors employ a wet multi-plate clutch and usually employ a wet multi-plate clutch corresponding to a single number. Therefore, in consideration of the number of stages of a general tractor, at least four to eight sets are adopted.
The operation of the wet type multi-plate clutch is performed by driving the hydraulic pump. Since the driving of the hydraulic pump uses the power of the engine, the more the number of the wet type multi-plate clutch is employed, the more the engine power is used. Therefore, there is a structural problem in that the power of the engine is lost in view of the transmission and the working machine.
In addition, since the wet multi-plate clutch is structurally large and occupies a large space for installation, it is also required to install a cooling device for lubrication for cooling. As a result, the size of the transmission increases, There was a difficult problem.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a tractor transmission having a simple structure and excellent power transmission efficiency while minimizing a wet type multi-plate clutch which is difficult to install and manage.
In order to achieve the above object, according to the present invention, there is provided a transmission comprising a drive input shaft connected to an output portion of the engine, and a carrier shaft and a sun gear shaft which are rotated by receiving a rotational force of the drive input shaft, A third reduction gear and a third reduction gear; A second shift stage and a fourth shift stage, which are provided in association with the sun shaft; And a third shift speed clutch drive gear that transmits the power of the above-mentioned first shift stage drive gear and the third shift stage drive gear. A first and a third speed change synchronous transmission mechanism coupled with a driven gear; Second and fourth driven gears that are rotatably engaged with the first and third driven gears and second and fourth driven gears, respectively, Transmission synchro transmission; A clutch output shaft rotatably coupled to the drive input shaft; A forward driving gear and a reverse driving gear provided to interlock with the clutch output shaft; A second-speed clutch driven gear coupled to the clutch output shaft and receiving power from the second-stage clutch drive gear, and a third-speed clutch driven gear that receives power from the first- A clutch for a tractor, comprising: a clutch;
In addition, in the above-described first-stage to second-speed shifting, the 1 < st > -to-3 speed change-speed synchronizer transmission gear is connected to the above- The transmission clutch disengages the power connected to the 1st and 3rd driven shafts, and is connected to the 2nd and 4th driven shafts. When the 2nd and 3rd shafts are engaged, In the state where the transmission is connected from the 1st speed drive of the 1st speed reduction gear to the 2nd speed 3rd speed drive gear, and the 2nd speed gearshift transmission gear is connected to 2nd speed, the auxiliary speed change clutch disengages the power of the 2nd speed / There is provided a transmission for a tractor to which power transmission is connected to an auxiliary transmission 1 or 3 driven shaft.
The sun gear shaft is freely rotatably connected to the drive input shaft, the carrier shaft is freely rotatably connected to the sun gear shaft, and the clutch output shaft is rotatably connected to the drive input shaft on the drive input shaft. Is provided.
A first sun gear fixed to the drive input shaft; A second sun gear formed on the sun shaft; A ring gear rotatable about the driving input shaft and installed to surround the second sun gear; Further comprising a plurality of planetary gears having first pinion gears connected to the first sun gear and second pinion gears connected to the second sun gear and ring output gears of the ring gear at the same time, Wherein the carrier is coupled to the plurality of planetary gears at the same time.
The driving input shaft is connected to the HST input shaft of the HST unit and the input unit of the ring gear is connected to the HST output shaft of the HST unit A carrier shaft coupled with the power of the drive input shaft and the power of the HST unit to interlock with the carrier, and a tractor transmission transmitted to the sun shaft.
Further, there is provided a tractor transmission in which a driving device driving shaft is connected to the driving input shaft.
The forward and reverse output shafts through which the power of the forward driving gear and the reverse driving gear are transmitted are equipped with forward and backward synchronized transmission shafts having forward driven gears and reverse driven gears respectively corresponding to the forward driving gear and the reverse driving gear, And a reverse idle gear for transmitting the power of the reverse drive gear to the reverse driven gear is engaged between the reverse drive gear and the reverse drive gear.
1 is a diagram showing a configuration of a tractor transmission according to an embodiment of the present invention.
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, it is to be understood that the technical idea of the present invention and its essential structure and operation are not limited thereby.
1 is a diagram showing a configuration of a transmission 1 according to an embodiment of the present invention.
1, the transmission 1 according to the present embodiment is constituted around a
A
The working
As used herein, the term " upstream "means a side to which power is input by one member, and the term" downstream " means a side to which power input from the member is transmitted.
The HST
The
The
Since the structure of the hydraulic type continuously variable transmission that receives and decelerates the driving force of the engine 3 like the
On the other hand, on the downstream side of the
A plurality of
As shown in the figures, the carrier 29 is coupled to the plurality of
The
Therefore, when the engine 3 is driven, the
The rotational driving force of the
On the other hand, when the
At this time, since the revolution speeds of the respective
The carrier 29 and the
That is, according to the present embodiment, the rotational driving force of the
More specifically, the auxiliary transmission 1
A second speed change stage
First, the auxiliary speed change driven one-side driven
In addition, the first and third stages of
In addition, the auxiliary speed-change first-speed and third-speed driven
Further, the second speed-change driven
Meanwhile, a
The
Thus, the second-stage clutch driven
The power of the second-stage clutch driven
The
The forward-
As described above, the forward driven
The power transmitted to the forward /
Hereinafter, the operation of the transmission 1 according to the present embodiment will be described.
[Power transmission path]
As described above, when the engine 3 is rotated to rotate the
The power transmitted to the
The power transmitted to the
Each of the power transmitted to the auxiliary
[Sub shift operation]
First, the components of the auxiliary speed change section will be described. The auxiliary
The first and third speed change
In the second-stage to third-speed shifting, the first-speed-change-speed
[Before and after operation]
First, components of the forward and backward portions are constituted by the forward-backward
At this time, the
In the transmission 1 according to the present embodiment as described above, in place of the wet type multi-plate clutch, there are provided two synchronous transmission gears, that is, a three-step transmission
Further, since each of the
1: Transmission 3: Engine
5: drive input shaft 7: first sun gear
9: HST input drive gear 11: working device drive shaft
13: Clutch 15: Hydraulic stepless speed change unit
17: HST input shaft 19: HST input driven gear
21: Hydraulic pump 23: Hydraulic motor
25: HST output shaft 27: carrier shaft
29: carrier 31: second sun gear
33: planetary gear 35: first pinion gear
37: second pinion gear 39: ring gear
40: ring input gear 41: ring output gear
43: HST output drive gear 45: Negative speed first drive gear
47: Third speed reduction gear drive gear 49: 1st speed reduction gear drive gear
51: Third speed lowering gear 53:
55: Second speed shift second gear drive gear 57: Second shift gear fourth gear drive gear
59: Second speed shifting second driven gear 61: Third shifting fourth speed gear
63: 1, 3-speed shift synchronous transmission gear 65: 1, 3-speed clutch drive gear
67: 2,4-speed clutch drive gear 69: 4, 2-speed shift synchromesh transmission gear
71: Second speed shift 2nd / 4th speed driven shaft 73: Clutch output shaft
75: 2nd and 4th stage clutch driven gear 77: 1st and 3rd stage clutch driven gear
79: auxiliary shift clutch 81: forward gear
83: reverse gear 85: forward / reverse output shaft
87: forward driven gear 89: reverse driven gear
90: Reverse idle gear 91: Forward / reverse synchro transmission
93: Main clutch
Claims (7)
A first shift stage and a third shift stage drive gear (45, 47) coupled to the carrier shaft (27);
A second shift stage and a fourth shift stage drive gear (55, 57) provided in association with the sun gear shaft (53);
Speed driven gears (first and second speed-change driven gears) 45 and 45, which are provided with a third speed change clutch drive gear 65 to which the power of the above- 70, and a third-speed change-speed synchronous transmission mechanism 63 coupled to the first-speed shift stage and the third-stage shift stage three-stage driven gears 49, 51;
A second shift stage driven by the second shift stage 71 and a second shift stage driven by the second shift stage, A 2 < st > speed change speed synchronous transmission mechanism 69 equipped with a gear 67;
A clutch output shaft (73) rotatably coupled to the drive input shaft (5);
A forward drive gear 81 and a reverse drive gear 83 provided to interlock with the clutch output shaft 73;
Stage clutch-driven gear 67 that is coupled to the clutch output shaft 73 and receives power from the second-stage clutch drive gear 67 and a second- A subtransmission clutch (79) provided with a first and a third stage clutch driven gear;
And a control unit for controlling the drive of the tractor.
The first and third speed change synchronous transmission mechanism 63 is connected to the above-described auxiliary speed change one-stage drive gear 45 and the four-speed synchronous transmission mechanism 69 is connected to the above- The auxiliary shift clutch 79 disengages the power connected to the auxiliary shifting and first and third driven shafts 70 while the power is transmitted to the auxiliary shifting gears 55 and 55. Thus, Connected,
In the second-stage to third-speed shifting, the first-speed-change-speed synchronizer transmission mechanism 63 is connected from the first-speed shift stage drive gear 45 to the third shift stage drive gear 47, In the state in which the synchromesh transmission mechanism 69 is connected to the second stage, the auxiliary shift clutch 79 disengages the power of the auxiliary transmission / second / fourth driven shaft 71 and engages the auxiliary transmission / Is connected to the transmission.
The sun gear shaft 53 is freely rotatably connected to the drive input shaft 5 and the carrier shaft 27 is freely rotatably connected to the sun gear shaft 53. The clutch output shaft 73, Is rotatably connected on the drive input shaft (5).
A first sun gear 7 fixed to the drive input shaft 5;
A second sun gear 31 formed on the sun shaft 53;
A ring gear 39 freely rotatable about the driving input shaft 5 and installed to surround the second sun gear 31;
A first pinion gear 35 connected to the first sun gear 7 and a second pinion gear 37 connected simultaneously to the ring output gear 41 of the second sun gear 31 and the ring gear 39, , And a plurality of planetary gears (33)
Wherein the carrier (29) interlocked with the carrier shaft (27) is simultaneously engaged with the plurality of planetary gears (33).
And an HST unit (15) for adjusting the magnitude of the output power by adjusting the internal hydraulic pressure,
The driving input shaft 5 is connected to the HST input shaft 17 of the HST unit 15,
The input portion of the ring gear 39 is connected to the HST output shaft 25 of the HST unit 15 so that the power of the drive input shaft 5 and the power of the HST unit 15 are combined, Is transmitted to the carrier shaft (27) and the sun shaft (53) which are linked together.
And a working device drive shaft (11) is connected to the drive input shaft (5).
The forward and reverse output shafts 85 to which the power of the forward drive gear 81 and the reverse drive gear 83 are transmitted are connected to the forward driven gears 87 and 87 which are respectively opposed to the forward drive gear 81 and the reverse drive gear 83 A forward / backward synchronizing transmission mechanism 91 having a reverse driven gear 89 is mounted,
And a reverse idle gear (90) for transmitting the power of the reverse drive gear (83) to the reverse driven gear (89) is engaged between the reverse drive gear (83) and the reverse driven gear (89) .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140029629A KR101522497B1 (en) | 2014-03-13 | 2014-03-13 | Transmission of Vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140029629A KR101522497B1 (en) | 2014-03-13 | 2014-03-13 | Transmission of Vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
KR101522497B1 true KR101522497B1 (en) | 2015-05-21 |
Family
ID=53395340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020140029629A KR101522497B1 (en) | 2014-03-13 | 2014-03-13 | Transmission of Vehicle |
Country Status (1)
Country | Link |
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KR (1) | KR101522497B1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170084840A (en) * | 2016-01-13 | 2017-07-21 | 엘에스엠트론 주식회사 | Axle Assembly of Agricultural Vehicle and Agricultural Vehicle |
KR20170114459A (en) * | 2016-04-05 | 2017-10-16 | 엘에스엠트론 주식회사 | Transmission of Agricultural Vehicle |
KR20170114484A (en) * | 2016-04-05 | 2017-10-16 | 엘에스엠트론 주식회사 | Transmission of Agricultural Vehicle |
KR20170122416A (en) * | 2016-04-27 | 2017-11-06 | 엘에스엠트론 주식회사 | Transmission of Agricultural Vehicle |
KR101795493B1 (en) | 2016-04-27 | 2017-11-10 | 유원산업(주) | Hydro Mechanical Transmission |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101326351B1 (en) * | 2012-11-13 | 2013-11-11 | 엘에스엠트론 주식회사 | Transmission of vehicle |
KR101401104B1 (en) * | 2012-11-28 | 2014-05-28 | 엘에스엠트론 주식회사 | Hydrostatic mechanical transmission |
-
2014
- 2014-03-13 KR KR1020140029629A patent/KR101522497B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101326351B1 (en) * | 2012-11-13 | 2013-11-11 | 엘에스엠트론 주식회사 | Transmission of vehicle |
KR101401104B1 (en) * | 2012-11-28 | 2014-05-28 | 엘에스엠트론 주식회사 | Hydrostatic mechanical transmission |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170084840A (en) * | 2016-01-13 | 2017-07-21 | 엘에스엠트론 주식회사 | Axle Assembly of Agricultural Vehicle and Agricultural Vehicle |
KR102237328B1 (en) | 2016-01-13 | 2021-04-06 | 엘에스엠트론 주식회사 | Axle Assembly of Agricultural Vehicle and Agricultural Vehicle |
KR20170114459A (en) * | 2016-04-05 | 2017-10-16 | 엘에스엠트론 주식회사 | Transmission of Agricultural Vehicle |
KR20170114484A (en) * | 2016-04-05 | 2017-10-16 | 엘에스엠트론 주식회사 | Transmission of Agricultural Vehicle |
KR102063659B1 (en) | 2016-04-05 | 2020-01-08 | 엘에스엠트론 주식회사 | Transmission of Agricultural Vehicle |
KR102063662B1 (en) | 2016-04-05 | 2020-01-08 | 엘에스엠트론 주식회사 | Transmission of Agricultural Vehicle |
KR20170122416A (en) * | 2016-04-27 | 2017-11-06 | 엘에스엠트론 주식회사 | Transmission of Agricultural Vehicle |
KR101795493B1 (en) | 2016-04-27 | 2017-11-10 | 유원산업(주) | Hydro Mechanical Transmission |
KR102161474B1 (en) | 2016-04-27 | 2020-10-05 | 엘에스엠트론 주식회사 | Transmission of Agricultural Vehicle |
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