WO2013023370A1 - Structure de lubrification pour un différentiel inter-ponts appartenant à un essieu à entraînement traversant et véhicule - Google Patents

Structure de lubrification pour un différentiel inter-ponts appartenant à un essieu à entraînement traversant et véhicule Download PDF

Info

Publication number
WO2013023370A1
WO2013023370A1 PCT/CN2011/078533 CN2011078533W WO2013023370A1 WO 2013023370 A1 WO2013023370 A1 WO 2013023370A1 CN 2011078533 W CN2011078533 W CN 2011078533W WO 2013023370 A1 WO2013023370 A1 WO 2013023370A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
inter
housing
axle differential
axle
Prior art date
Application number
PCT/CN2011/078533
Other languages
English (en)
Chinese (zh)
Inventor
刘四清
王学刚
杨刚
刘爱萍
万永杰
Original Assignee
长沙中联重工科技发展股份有限公司
湖南中联重科专用车有限责任公司
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 长沙中联重工科技发展股份有限公司, 湖南中联重科专用车有限责任公司 filed Critical 长沙中联重工科技发展股份有限公司
Priority to PCT/CN2011/078533 priority Critical patent/WO2013023370A1/fr
Publication of WO2013023370A1 publication Critical patent/WO2013023370A1/fr

Links

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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F16H57/0445—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control for supply of different gearbox casings or sections
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0482—Gearings with gears having orbital motion
    • F16H57/0483—Axle or inter-axle differentials

Definitions

  • the present invention relates to lubrication of an inter-axle differential of a through-drive axle, and more particularly to an inter-axle differential lubrication structure of a transaxle and a vehicle having the same. Background technique
  • the inter-axle differential 4 of the through-drive axle is typically mounted in a first chamber A formed by a first housing 1 and a second housing 2 (generally referred to collectively as a bridge housing).
  • the second housing 2 and the final drive housing 3 form a second chamber B.
  • the through shaft 5 passes through the first chamber A and the second chamber B, and the inter-axle differential 4 is mounted on the through shaft 5 and located in the first chamber A.
  • the driving gear 6 is mounted on the through shaft 5, and the driving gear 6 and the driven gear 7 are engaged and disposed in the second chamber B.
  • Lubricating oil may be applied to the first chamber A through the fuel filler port 13 provided in the first casing 1 to lubricate the inter-axle differential 4. When the inter-axle differential 4 is in operation, the lubricating oil can be splashed to lubricate the bearing 10 provided at the end of the first casing.
  • the first chamber A and the second chamber B communicate through the assembly gap.
  • Lubricating oil in the first chamber A may flow into the second chamber B through the fitting gap to cause loss of lubricating oil.
  • an oil passage and a pump (for example, a gear pump 7b mounted on the second housing 2 and driven by the gear shaft 7a) are provided between the first chamber A and the second chamber B for use from the second The chamber B replenishes the first chamber A with lubricating oil.
  • the problem to be solved by the present invention is the lubrication of the inter-axle differential between the through-drive axles.
  • the present invention provides an inter-axle differential lubrication structure for a through-drive axle, the lubrication structure including a first housing, a second housing, a final drive housing, and an inter-axle differential, a second housing is disposed between the first housing and the final drive housing, and forms a first chamber and a second chamber with the first housing and the final drive housing, respectively
  • the inter-axle differential is located in the first chamber, wherein the first chamber and the second chamber are communicated by a communication tube, and the position of the communication tube communicating with the first chamber is higher than The position at which the communication tube communicates with the second chamber is low.
  • the lower portion of the first chamber and the lower portion of the second chamber are sealed by a first oil seal.
  • the intermeshing driving gear and the driven gear are disposed in the second chamber, and the first oil seal is disposed on the shoulder of the driven gear.
  • a side of the first housing that is away from the second chamber is provided with a first through hole
  • a side of the second housing that is adjacent to the first chamber is provided with a second through hole
  • an end of the first housing remote from the second chamber is provided with a bearing and a bearing cover, and the bearing and the first housing and the bearing cover are disposed between a communication space in which the first through holes communicate.
  • the end of the bearing cap is provided with a second oil seal.
  • the first housing is provided with a fueling port.
  • the present invention also provides a vehicle, wherein the vehicle includes an inter-axle differential lubrication structure of the through-type transaxle of the present invention.
  • the second The lubricating oil in the chamber can flow into the first chamber through the communication tube to compensate for the above loss. Make sure that the interaxle differential is lubricated.
  • Figure 1 is a schematic view showing the structure of an inter-axle differential lubrication structure of a prior art through-drive axle;
  • Fig. 2 is a schematic view showing the structure of the inter-axle differential lubrication structure of the through-type transaxle of the present invention. Description of the reference numerals
  • first housing la first through hole lb: first gap
  • an inter-axle differential lubrication structure for a through-drive axle, the lubrication structure comprising a first housing 1, a second housing 2, a final drive housing 3 and an inter-axle differential 4.
  • the second housing 2 is disposed between the first housing 1 and the final drive housing 3, and forms a first with the first housing 1 and the final drive housing 3, respectively.
  • a chamber A and a second chamber B the inter-axle differential 4 is located in the first chamber A, wherein the first chamber A and the second chamber B pass through a communication tube 8 is connected, and the position where the communication pipe 8 communicates with the first chamber A is lower than the position where the communication pipe 8 communicates with the second chamber B.
  • the lubricating oil in the first chamber A is caused to flow from the first chamber A to the second chamber B through the assembly gap, thereby causing the lubricating oil loss of the first chamber A.
  • the lubricating oil in the second chamber B (for lubricating the driving gear 6 and the driven gear 7) can flow into the first chamber A through the communication pipe 8 to compensate for the above loss, and ensure that the inter-axle differential can be lubricated.
  • the first chamber A and the second chamber B can only communicate through the connecting tube 8 and cannot be otherwise connected.
  • the lower portion of the first chamber A and the lower portion of the second chamber B are sealed by the first oil seal 9.
  • the first oil seal 9 can be mounted in an appropriate manner as long as the gap between the first chamber A and the second chamber B other than the assembly gap and the communication tube 8 can be avoided.
  • the intermeshing driving gear 6 and the driven gear 7 are disposed in the second chamber, and the first oil seal 9 is disposed on the shoulder of the driven gear 7.
  • the inter-axle differential 4 and the driving gear 6 are respectively mounted on the through shaft 5, and the operation of the driving gear 6 and the driven gear 7 will agitate the lubricating oil in the second chamber B and make the second chamber B
  • the lubricating oil can flow into the first chamber A through the communication pipe 8 to maintain the lubricating oil in the first chamber A at a desired liquid level.
  • the communication tube 8 can be made of various suitable materials.
  • the communication tube 8 may be made of a rigid material, such as a steel tube or other metal or alloy tube, so that For a rigid, sealed connection.
  • the communication pipe 8 may be formed to have an inclined portion such that the position where the communication pipe 8 communicates with the first chamber A is lower than the position where the communication pipe 8 communicates with the second chamber B.
  • the communication tube 8 may be disposed at any appropriate position as long as the first chamber A and the second chamber B can be communicated.
  • a side of the first casing 1 away from the second chamber B is provided with a first through hole la
  • a side of the second casing 2 close to the first chamber A is provided with a second pass
  • the hole 2a has two ends of the communication tube 8 inserted into the first through hole 1a and the second through hole 2a, respectively.
  • the end of the first housing 1 remote from the second chamber B is provided with a bearing 10 and a bearing cover 11 at the bearing 10 and the first housing 1 and the bearing cap A communication space communicating with the first through hole la is provided between the 11 holes. Therefore, by providing the communication space, the lubricating oil flowing from the second chamber B through the communication pipe 8 into the first chamber A can be supplied not only to the inter-axle differential 4 but also to the bearing 10 through the communication space. In other words, a portion of the lubricating oil flowing into the first chamber A through the communication pipe 8 is used to lubricate the inter-axle differential 4, and the other portion can flow into the communication space and lubricate the bearing 10.
  • a first gap lb is formed between the first housing 1 and the outer ring of the bearing 10, and is formed between the bearing 10 and the bearing cover 11.
  • a second gap 11a communicating with the first gap lb (for example, the second gap 11a is formed between the end of the bearing 10 and the bearing cap 11 and between the outer ring of the bearing 10 and the bearing cap 11).
  • the first gap lb and the second gap 11a together form a communication space, and the lubricating oil flowing into the first chamber A through the communication tube 8 may sequentially pass through the first gap lb and the second gap 11a, thereby passing through the outer ring and the end of the bearing 10. Flow to the inner ring to lubricate the rollers of the bearing 10.
  • the end of the bearing cap 11 may be provided with a second oil seal 12 to prevent leakage of lubricating oil from the first chamber A.
  • first oil seal 9 and the second oil seal 12 may have the same or different structures as long as they can function as a seal.
  • Those skilled in the art can select oil seal parts of various suitable structures and materials as the first oil seal 9 and the second oil seal 12 according to design requirements, and do not elaborate here. Description.
  • a fuel filler port 13 may be provided in the first casing 1 to replace or add lubricating oil to the first chamber A as needed.
  • the fuel filler port 13 can be disposed at any suitable position. In the preferred embodiment shown, since the pump and the like are omitted in the present invention, the fuel filler port 13 can be disposed at the lower portion of the first casing 1.
  • a vehicle including an inter-axle differential lubrication structure of the through-drive axle of the present invention.
  • the inter-axle differential lubrication structure of the through-drive axle of the present invention ensures that the inter-axle differential is well lubricated for smooth running of the vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

L'invention porte sur une structure de lubrification pour un différentiel inter-ponts appartenant à un essieu à entraînement traversant et sur un véhicule équipé de la structure de lubrification, la structure de lubrification comprenant un premier carter, un deuxième carter, un carter de couple final et un différentiel inter-ponts, le deuxième carter étant placé entre le premier carter et le carter du couple final en formant respectivement une première cavité et une seconde cavité avec le premier carter et avec le carter de couple final, le différentiel inter-ponts étant placé dans la première cavité ; la première cavité et la seconde cavité communiquant entre elles par un tube de communication, l'emplacement du tube de communication où il communique avec la première cavité étant placé plus bas que l'emplacement du tube de communication où il communique avec la seconde cavité. Lorsque de l'huile lubrifiante contenue dans la première cavité passe par le jeu d'ajustement entre le différentiel inter-ponts, les essieux en tandem et l'engrenage moteur et le jeu de paliers pour atteindre la seconde cavité, ce qui mène à une perte d'huile de lubrifiant dans la première cavité, l'huile lubrifiante contenue dans la seconde cavité peut pénétrer dans la première cavité en passant par le tube de communication pour compenser la perte et faire en sorte que le différentiel inter-ponts soit lubrifié.
PCT/CN2011/078533 2011-08-17 2011-08-17 Structure de lubrification pour un différentiel inter-ponts appartenant à un essieu à entraînement traversant et véhicule WO2013023370A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/078533 WO2013023370A1 (fr) 2011-08-17 2011-08-17 Structure de lubrification pour un différentiel inter-ponts appartenant à un essieu à entraînement traversant et véhicule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/078533 WO2013023370A1 (fr) 2011-08-17 2011-08-17 Structure de lubrification pour un différentiel inter-ponts appartenant à un essieu à entraînement traversant et véhicule

Publications (1)

Publication Number Publication Date
WO2013023370A1 true WO2013023370A1 (fr) 2013-02-21

Family

ID=47714706

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/078533 WO2013023370A1 (fr) 2011-08-17 2011-08-17 Structure de lubrification pour un différentiel inter-ponts appartenant à un essieu à entraînement traversant et véhicule

Country Status (1)

Country Link
WO (1) WO2013023370A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677871A (en) * 1984-07-06 1987-07-07 Toyota Jidosha Kabushiki Kaisha Lubrication mechanism in final drive and differential unit
GB2208689A (en) * 1987-07-01 1989-04-12 Gkn Axles Axle unit for motor vehicle
CN1521428A (zh) * 2003-01-28 2004-08-18 ù 最终传动单元的润滑装置
CN1922048A (zh) * 2004-02-24 2007-02-28 雷诺尔特·特鲁克斯 机械接头组件
CN200989415Y (zh) * 2006-12-30 2007-12-12 中国三江航天工业集团公司 断开式双级贯通式主减速器
CN101629625A (zh) * 2008-07-18 2010-01-20 马自达汽车株式会社 自动变速器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677871A (en) * 1984-07-06 1987-07-07 Toyota Jidosha Kabushiki Kaisha Lubrication mechanism in final drive and differential unit
GB2208689A (en) * 1987-07-01 1989-04-12 Gkn Axles Axle unit for motor vehicle
CN1521428A (zh) * 2003-01-28 2004-08-18 ù 最终传动单元的润滑装置
CN1922048A (zh) * 2004-02-24 2007-02-28 雷诺尔特·特鲁克斯 机械接头组件
CN200989415Y (zh) * 2006-12-30 2007-12-12 中国三江航天工业集团公司 断开式双级贯通式主减速器
CN101629625A (zh) * 2008-07-18 2010-01-20 马自达汽车株式会社 自动变速器

Similar Documents

Publication Publication Date Title
CN101936383B (zh) 传动系统
US8882480B2 (en) Oil pump with air vent structure
US6855083B1 (en) Lubrication pump for inter-axle differential
CN102853064B (zh) 差速器齿轮单元的润滑结构
CN108869023B (zh) 一种取力器的自润滑系统
CN107735599B (zh) 具有润滑剂供给通道和限流器的机动车传动系单元外壳
CN102947594A (zh) 车用内齿轮式油泵
CN107100991B (zh) 一种变速箱
US11867281B2 (en) Pump stage assembly, external gear pump, use of a pump stage assembly and vehicle transmission
US12049951B2 (en) Pump stage assembly, external gear pump, use of a pump stage assembly and vehicle transmission
CN102312995B (zh) 贯通式驱动桥的轴间差速器润滑结构和车辆
CN100545452C (zh) 一种内啮合齿轮泵
WO2013023370A1 (fr) Structure de lubrification pour un différentiel inter-ponts appartenant à un essieu à entraînement traversant et véhicule
CN202220846U (zh) 贯通式驱动桥的轴间差速器润滑结构和车辆
CN100408402C (zh) 高速列车动力车驱动齿轮箱的密封装置
CN110410487B (zh) 驱动桥总成及压路机
CN207364244U (zh) 一种采用螺旋泵进行润滑的取力器、变速箱或液力缓速器
CN105299189B (zh) 一种车轴齿轮箱
CN103899430B (zh) 一种汽车发动机的前罩壳
CN107339409B (zh) 一种变速箱变矩器壳体
CN106704565B (zh) 一种变速箱主壳体
JP2012237352A (ja) 潤滑油供給装置
US11047470B2 (en) Axle assembly with lubrication pump
KR101219973B1 (ko) 상용 차량의 차동장치의 윤활장치
JP2010077983A (ja) デファレンシャル

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11870929

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11870929

Country of ref document: EP

Kind code of ref document: A1