WO2022257188A1 - Transmission de tracteur - Google Patents

Transmission de tracteur Download PDF

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Publication number
WO2022257188A1
WO2022257188A1 PCT/CN2021/101820 CN2021101820W WO2022257188A1 WO 2022257188 A1 WO2022257188 A1 WO 2022257188A1 CN 2021101820 W CN2021101820 W CN 2021101820W WO 2022257188 A1 WO2022257188 A1 WO 2022257188A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
shaft
output
gear shaft
reduction mechanism
Prior art date
Application number
PCT/CN2021/101820
Other languages
English (en)
Chinese (zh)
Inventor
王文亮
胡黎明
陶亮锦
Original Assignee
温岭市明华齿轮有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 温岭市明华齿轮有限公司 filed Critical 温岭市明华齿轮有限公司
Publication of WO2022257188A1 publication Critical patent/WO2022257188A1/fr

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Classifications

    • 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
    • F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
    • F16H47/04—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion

Definitions

  • the invention belongs to the technical field of agricultural tractors, in particular to a tractor gearbox.
  • the purpose of the present invention is to provide a tractor gearbox, which realizes interval stepless speed change through the combination of mechanical transmission, hydraulic drive and planetary reduction mechanism, which not only has the high efficiency of mechanical transmission, but also has hydraulic stepless speed change.
  • a tractor gearbox comprising a housing, the housing is rotationally connected with an input bevel gear shaft, a shaft, an intermediate gear shaft and an output gear shaft, the input bevel gear shaft is linked with a shaft through a spline sleeve, and the first shaft passes through
  • the meshing gear is meshed with the ring gear of the planetary reduction mechanism
  • the input bevel gear shaft is meshed with the HMT input bevel gear through the transmission input bevel gear
  • the HMT output bevel gear is connected with the sun gear of the planetary reduction mechanism.
  • the planet carrier of the mechanism is equipped with an output gear
  • the intermediate gear shaft is equipped with an input gear that meshes with the output gear.
  • the intermediate gear shaft and the output gear shaft are connected through a transmission gear set, and the output gear shaft is provided with a planetary reduction gear.
  • the mechanism is connected with the engagement tooth sleeve, and the axial movement of the engagement tooth sleeve can be engaged with the output gear shaft or the planet carrier of the planetary reduction mechanism.
  • the planetary reduction mechanism includes a ring gear 1, a sun gear shaft, a sun gear 1 arranged on the sun gear shaft, and a sun gear 1 arranged between the sun gear 1 and the ring gear 1 and Rotate the planetary gear 1 connected to the planetary carrier 1, and the input end of the central gear shaft is equipped with a transmission output bevel gear meshed with the HMT output bevel gear.
  • the planetary reduction mechanism includes the second sun gear arranged on the output gear shaft, the second ring gear arranged on the housing, and the second sun gear arranged between the second sun gear and the second ring gear. And rotate the planetary gear 2 that is connected on the planetary carrier 2, and the described engaging gear sleeve can be combined with the sun gear 2 or the planetary carrier 2.
  • the gear set includes a first-speed driving gear and a first-speed passive gear, a second-speed driving gear and a second-speed passive gear, a third-speed driving gear and a third-speed passive gear , the driving gear of fourth gear and the passive gear of fourth gear, the driving gear of second gear, the driving gear of third gear and the driving gear of fourth gear are all set on the intermediate gear shaft, the passive gear of first gear, the passive gear of second gear and the passive gear of third gear are all set on the On the output gear shaft, there is an integrated structure between the first gear driving gear and the intermediate gear shaft, and between the fourth gear passive gear and the output gear shaft.
  • the intermediate gear shaft can be connected with the third gear driving gear or the fourth gear shaft through the third and fourth gear synchronizers.
  • the driving gear is combined, and the output gear shaft can be combined with the first gear driven gear or the second gear driven gear through the first and second gear synchronizers.
  • the housing includes a front housing and a rear case, the input bevel gear shaft, the first shaft, and the planetary reduction mechanism are all arranged on the front housing, and the intermediate gear The shaft, the output gear shaft, the gear set and the planetary reduction mechanism are all arranged on the rear case.
  • the present invention adopts the parallel combination of mechanical transmission, hydraulic transmission and planetary deceleration mechanism, so that it has the advantages of high efficiency of mechanical transmission and comfortable shifting of stepless speed change of hydraulic transmission, and is an upgraded product of the current mechanical transmission;
  • the present invention adopts the high efficiency of mechanical power transmission and the infinitely variable speed of hydraulic transmission to form a multi-interval infinitely variable speed assembly, so that each gear interval can realize the maximum speed from 0 speed to the corresponding gear, and the driving of the tractor
  • the speed can be adjusted between 0-50 km/h, which meets the speed requirements of various operations on the tractor, greatly improves the performance of the product, and greatly improves the applicability of the whole machine.
  • Fig. 1 is the overall structure diagram of the present invention.
  • a tractor gearbox comprising a housing, in which an input bevel gear shaft 1, a first shaft 2, an intermediate gear shaft 3 and an output gear shaft 4 are rotatably connected, and the input bevel gear shaft 1 is connected to a spline sleeve 5 through a
  • the shaft 2 is linked, the first shaft 2 is meshed with the ring gear 13 of the planetary reduction mechanism through the meshing gear 6, the input bevel gear shaft 1 is meshed with the HMT input bevel gear 8 through the transmission input bevel gear 7, and the HMT output bevel gear 9 is meshed with the HMT
  • the sun gear 15 of the planetary reduction mechanism is connected in transmission, the planet carrier 16 of the planetary reduction mechanism is equipped with an output gear 10, the intermediate gear shaft 3 is equipped with an input gear 11 meshing with the output gear 10, the intermediate gear shaft 3 and The output gear shafts 4 are connected through a transmission gear set.
  • the output gear shaft 4 is provided with a planetary reduction mechanism and an engaging gear sleeve 12, and the engaging gear sleeve 12 can move axially with the output gear shaft 4 or the planet carrier of the planetary reduction mechanism.
  • Two 21 are joined together.
  • the HMT input bevel gear 8 and the HMT output bevel gear 9 serve as the input and output ends of the HST hydraulic system in the prior art; meanwhile, the above-mentioned meshing teeth 6 are directly set on the outer peripheral wall of the shaft 2 .
  • the power output by the engine is divided into two transmission routes at the input bevel gear shaft 1.
  • One axis 2 is transmitted to the ring gear 13 of the planetary reduction mechanism, and the other is transmitted to the gear wheel by the HMT output bevel gear 9 through the HST hydraulic system after the transmission input bevel gear 7 meshes with the HMT input bevel gear 8 to drive and reversing.
  • the two transmission lines are combined in the planetary reduction mechanism and then output to the intermediate gear shaft 3, the gear set and the output gear shaft 4 in sequence. Cooperate to achieve high and low gear switching.
  • the present invention adopts the high efficiency of mechanical power transmission and the infinitely variable speed of hydraulic transmission to form a multi-interval infinitely variable speed assembly, so that each gear interval can realize the maximum speed from 0 speed to the corresponding gear, and the driving speed of the tractor It can be adjusted between 0-50 km/h to meet the speed requirements of various operations on the tractor, greatly improve the performance of the product, and greatly improve the applicability of the whole machine.
  • the specific setting structure of the planetary reduction mechanism is: the planetary reduction mechanism includes a ring gear 13, a central gear shaft 14, The sun gear one 15 that is arranged on the sun gear shaft 14, and the planetary gear one 17 that is arranged between the sun gear one 15 and the ring gear one 13 and is rotatably connected on the planet carrier one 16, the input end of the sun gear shaft 14 is sleeved There is a transmission output bevel gear 18 meshing with the HMT output bevel gear 9 .
  • the specific setting of the planetary reduction mechanism includes a sun gear 19 arranged on the output gear shaft 4, a ring gear 20 arranged on the housing, and a sun gear 2 19 and a ring gear 20 arranged between the second sun gear 19 and the ring gear 20 to rotate
  • the second planetary gear 22 connected to the second planetary carrier 21 , the engaging tooth sleeve 12 can be combined with the second sun gear 19 or the second planetary carrier 21 .
  • this product is equipped with four speed gears, that is, the specific setting structure of the gear set is as follows:
  • the gear set includes a first gear driving gear 23 and a first gear passive gear that are meshed.
  • the fourth gear driving gear 29 is all set on the intermediate gear shaft 3
  • the first gear driven gear 24, the second gear driven gear 26 and the third gear driven gear 28 are all sleeved on the output gear shaft 4
  • the first gear driving gear 23 and the intermediate gear shaft 3 between the fourth-speed passive gear 30 and the output gear shaft 4 are all integral structures, that is, the tooth surface of the first-speed driving gear 23 is directly set on the outer peripheral wall surface of the intermediate gear shaft 3, and the tooth surface of the fourth-speed passive gear 30
  • the surface is directly set on the outer peripheral wall of the output gear shaft 4; the intermediate gear shaft 3 can be combined with the third gear driving
  • the housing includes a front housing 33 and a rear case 34.
  • the input bevel gear shaft 1, the first shaft 2 and the planetary reduction mechanism are all arranged on the front housing 33.
  • the output gear shaft 4 , the gear set and the planetary reduction mechanism are all arranged on the rear case 34 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

Transmission de tracteur, comprenant un logement. Un arbre d'engrenage conique d'entrée, un arbre, un arbre d'engrenage intermédiaire et un arbre d'engrenage de sortie sont reliés dans le boîtier ; l'arbre d'engrenage conique d'entrée est relié à l'arbre au moyen d'un logement cannelé ; l'arbre est en transmission de mise en prise avec un premier anneau d'engrenage d'un mécanisme de réduction de vitesse épicycloïdal au moyen d'une dent de mise en prise ; l'arbre d'engrenage conique d'entrée est en transmission de mise en prise avec un engrenage conique d'entrée HMT ; un engrenage conique de sortie HMT est relié en transmission à un premier engrenage solaire du mécanisme de réduction de vitesse épicycloïdal ; un engrenage de sortie est emmanché sur un premier porte-satellites du mécanisme de réduction de vitesse épicycloïdal ; un engrenage d'entrée est emmanché sur l'arbre d'engrenage intermédiaire ; l'arbre d'engrenage intermédiaire est relié en transmission à l'arbre d'engrenage de sortie ; et l'arbre d'engrenage de sortie est doté d'un mécanisme de réduction de vitesse planétaire et d'un manchon de dent de mise en prise. Au moyen d'une combinaison parallèle de transmission mécanique, de transmission hydraulique, et du mécanisme de réduction de vitesse épicycloïdal, la transmission de tracteur présente l'avantage d'une efficacité élevée de transmission mécanique et du confort de changement de vitesse apporté par une transmission à variation continue de la transmission hydraulique, de sorte que l'applicabilité de l'ensemble de la machine est considérablement améliorée.
PCT/CN2021/101820 2021-06-10 2021-06-23 Transmission de tracteur WO2022257188A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110647199.7 2021-06-10
CN202110647199.7A CN113175515A (zh) 2021-06-10 2021-06-10 一种拖拉机变速箱

Publications (1)

Publication Number Publication Date
WO2022257188A1 true WO2022257188A1 (fr) 2022-12-15

Family

ID=76927922

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/101820 WO2022257188A1 (fr) 2021-06-10 2021-06-23 Transmission de tracteur

Country Status (2)

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CN (1) CN113175515A (fr)
WO (1) WO2022257188A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116985627A (zh) * 2023-07-25 2023-11-03 温岭市明华齿轮有限公司 一种拖拉机的机械液压无级传动系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002139126A (ja) * 2000-11-06 2002-05-17 Yanmar Agricult Equip Co Ltd 油圧−機械式無段変速装置
CN2814017Y (zh) * 2005-07-20 2006-09-06 山东福田重工股份有限公司 拖拉机变速箱总成
CN110397732A (zh) * 2019-08-02 2019-11-01 合肥工业大学 一种考虑hmt变速器效率的动力性变速优化控制方法
CN111271430A (zh) * 2020-02-13 2020-06-12 山东省农业机械科学研究院 一种机械液压耦合传动无级变速箱及传动系统及拖拉机
CN111577859A (zh) * 2020-06-19 2020-08-25 盐城市盐海拖拉机制造有限公司 一种园艺拖拉机静液压无级变速传动箱
CN212509411U (zh) * 2020-06-19 2021-02-09 盐城市盐海拖拉机制造有限公司 一种园艺拖拉机的并联式静液压无级变速传动机构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205064751U (zh) * 2015-10-22 2016-03-02 吉首市宗南重工制造有限公司 机液直联智能驱动式变速箱
JP6843338B2 (ja) * 2016-07-05 2021-03-17 株式会社 神崎高級工機製作所 Ｈｍｔユニット及びｈｍｔ構造
JP6994239B2 (ja) * 2017-11-15 2022-01-14 株式会社 神崎高級工機製作所 作業車輌
CN209587062U (zh) * 2019-01-11 2019-11-05 洛阳丰收农业机械装备有限公司 一种大功率拖拉机12f+12r梭式换挡传动系
CN210661264U (zh) * 2019-10-10 2020-06-02 浙江海天机械有限公司 一种收获机械用机械液压并联传动变速箱总成
CN213117321U (zh) * 2020-07-09 2021-05-04 道依茨法尔机械有限公司 一种微爬型拖拉机变速箱

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002139126A (ja) * 2000-11-06 2002-05-17 Yanmar Agricult Equip Co Ltd 油圧−機械式無段変速装置
CN2814017Y (zh) * 2005-07-20 2006-09-06 山东福田重工股份有限公司 拖拉机变速箱总成
CN110397732A (zh) * 2019-08-02 2019-11-01 合肥工业大学 一种考虑hmt变速器效率的动力性变速优化控制方法
CN111271430A (zh) * 2020-02-13 2020-06-12 山东省农业机械科学研究院 一种机械液压耦合传动无级变速箱及传动系统及拖拉机
CN111577859A (zh) * 2020-06-19 2020-08-25 盐城市盐海拖拉机制造有限公司 一种园艺拖拉机静液压无级变速传动箱
CN212509411U (zh) * 2020-06-19 2021-02-09 盐城市盐海拖拉机制造有限公司 一种园艺拖拉机的并联式静液压无级变速传动机构

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