WO2019091162A1 - Système d'entraînement de moyeu - Google Patents

Système d'entraînement de moyeu Download PDF

Info

Publication number
WO2019091162A1
WO2019091162A1 PCT/CN2018/098976 CN2018098976W WO2019091162A1 WO 2019091162 A1 WO2019091162 A1 WO 2019091162A1 CN 2018098976 W CN2018098976 W CN 2018098976W WO 2019091162 A1 WO2019091162 A1 WO 2019091162A1
Authority
WO
WIPO (PCT)
Prior art keywords
hub
reducer
drive system
oil
cavity
Prior art date
Application number
PCT/CN2018/098976
Other languages
English (en)
Chinese (zh)
Inventor
黄超
姜伟
Original Assignee
舍弗勒技术股份两合公司
黄超
姜伟
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 舍弗勒技术股份两合公司, 黄超, 姜伟 filed Critical 舍弗勒技术股份两合公司
Publication of WO2019091162A1 publication Critical patent/WO2019091162A1/fr

Links

Images

Classifications

    • 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
    • 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel

Definitions

  • the present invention relates to the field of vehicles, and in particular to a hub drive system.
  • the hub drive system also known as the wheel-mounted motor system, has the greatest feature of integrating the power unit, the transmission and the brake device into the hub, thus greatly simplifying the mechanical part of the electric vehicle.
  • the hub housing includes a motor cavity and a reducer cavity.
  • the motor is mounted in the motor cavity as a power unit of the hub drive system, and the reducer is mounted as a transmission in the reducer cavity.
  • a lip seal is arranged between the hub shell and the rotor bracket for sealing the reducer cavity, preventing the reducer cavity from communicating with the motor cavity, ensuring that impurities in the reducer cavity do not enter the motor cavity, and the motor The motor inside the cavity is contaminated.
  • the hub drive due to the relative rotation between the rotor bracket and the hub housing, there is sliding friction between the lip seal and the rotor bracket that are fixedly coupled to the hub bracket.
  • a rolling bearing is also mounted between the hub shell and the rotor bracket, a gap space is formed between the hub shell, the rolling bearing, the rotor bracket and the lip seal. Due to the existence of the gap space, it is difficult for the lubricating oil in the reducer chamber to flow into the gap space through the rolling bearing to lubricate the lip seal, thereby aggravating the wear of the lip seal.
  • the technical problem solved by the present invention is that the lip seal in the hub drive system is not lubricated, which exacerbates the wear of the lip seal.
  • the present invention provides a hub drive system including: a hub housing in which a reducer cavity and a motor cavity are formed; a rotor bracket, and the rotor bracket is mounted between the hub bracket and the hub shell a rolling bearing; a lip seal mounted between the hub housing and the rotor bracket for sealing the reducer cavity, the lip seal and the hub housing a gap space is formed between the rolling bearing and the rotor bracket; and a lubrication hole is disposed on the hub shell for communicating the reducer chamber and the gap space.
  • the lubrication hole comprises: an oil inlet and an oil outlet.
  • one of the oil inlet and one of the oil outlets are disposed in a radial direction of the hub shell.
  • a plurality of the lubrication holes are disposed on the hub shell, and the distance between each of the oil inlets and the center of the hub shell is equal, and each of the oil outlets is The distance between the centers of the hub shells is equal.
  • the oil inlet, the oil outlet, and the hub shell formed in the same radial direction have a trumpet shape, and a large diameter of the cross section faces the reducer cavity.
  • the lubrication hole is a through hole, and the lubrication hole has an oil inlet surface and an oil discharge surface.
  • a plurality of the lubrication holes are disposed on the hub shell, and the distance between each of the lubrication holes and the center of the hub shell is equal.
  • the lubricating hole has a flared cross section, and a large diameter of the cross section faces the reducer cavity.
  • the method further includes: a motor, the motor is installed in the motor cavity; a reducer, the reducer is installed in the reducer cavity; and the rotor support is respectively connected to an output shaft of the motor The input shaft of the reducer is coupled for transmitting torque of the motor to the reducer.
  • a lubricating hole is arranged on the hub shell, so that the speed reducer cavity is connected with the gap space.
  • the lubricating oil flows into the clearance space from the reducer cavity through the above-mentioned lubrication hole, thereby lubricating the lip seal in the clearance space, increasing the service life of the lip seal.
  • Figure 1 is a prior art hub drive system
  • Figure 2 is a partial enlarged view of the hub drive system of Figure 1 at A;
  • Figure 3 is a cross-sectional view of the hub shell of the first embodiment of the present invention, showing the oil inlet and the oil outlet;
  • Figure 4 is a partial enlarged view of the hub housing of Figure 3 at B, showing an oil inlet and an oil outlet;
  • Figure 5 is a front elevational view of the hub housing of Figure 3, showing a plurality of oil inlets and a plurality of oil outlets;
  • Figure 6 is a cross-sectional view showing a hub shell of a second embodiment of the present invention, showing a through hole;
  • Figure 7 is a partial enlarged view of the hub housing of Figure 6 at C, showing a through hole
  • Figure 8 is a front elevational view of the hub housing of Figure 6 showing a plurality of through holes.
  • the present invention provides a lubrication hole on the hub shell.
  • the lubricating oil in the reducer chamber contacts the lip seal through the lubrication hole, and the lip seal is lubricated, thereby effectively improving the service life of the lip seal.
  • a prior art hub drive system 1 includes a hub housing 10, a rotor bracket 20, and a lip seal 30.
  • the reducer chamber 10a and the motor chamber 10b are formed in the hub housing 10, the speed reducer 11 is mounted in the speed reducer chamber 10a, and the motor 12 is mounted in the motor chamber 10b.
  • the lip seal 30 is installed between the hub housing 10 and the rotor holder 20 for sealing the speed reducer chamber 10a, preventing the speed reducer chamber 10a from communicating with the motor chamber 10b, and ensuring impurities generated in the speed reducer chamber 10a of the speed reducer 11 It does not enter the motor cavity 10b, causing contamination of the motor 12 in the motor cavity 10b.
  • the output shaft of the motor 12 is coupled to the rotor holder 20, and the input shaft of the speed reducer 11 is coupled to the rotor holder.
  • the torque of the output shaft of the motor 12 passes through the rotor holder 20 and is transmitted to the input shaft of the speed reducer 11. on.
  • a rolling bearing 40 is mounted between the rotor bracket 20 and the hub housing 10. Therein, a gap space 50 is formed between the lip seal 30, the hub housing 10, the rolling bearing 40, and the rotor holder 20.
  • the lip seal 30 fixedly coupled to the hub bracket 10 has sliding friction between the rotor bracket 20 and the reducer chamber 10a. It is difficult for the lubricating oil to lubricate the lip seal 30 by the rolling bearing 40. Since the lip seal 30 is not lubricated, the wear of the lip seal 30 is exacerbated.
  • the present embodiment provides a lubrication hole 60 in the hub housing 10, and the lubrication hole 60 communicates with the reducer chamber 10a and the clearance space 50, so that the lubrication in the speed reducer chamber 10a is performed when the hub drive system 1 is in operation.
  • the oil enters the gap space 50 through the lubrication hole 60 due to the centrifugal force, and the lubricating oil comes into contact with the lip seal 30, thereby lubricating the lip seal 30, reducing wear and heat of the lip seal 30. Increase the service life of the lip seal 30.
  • the lubrication hole 60 includes an oil inlet port 61 and an oil outlet port 62.
  • the lubricating oil in the retarder chamber 10a enters the gap space 50 from the oil inlet 61, and then the lip seal 30 is lubricated, and then the lubricating oil exits the gap space 50 from the oil outlet 62, thus forming an oil circuit circulation.
  • a plurality of lubrication holes 60 are generally provided on the hub housing 10.
  • an oil inlet 61 and an oil outlet 62 are provided in the radial direction of the hub housing 10.
  • the distance between each of the oil inlets 61 and the center of the hub shell 10 is equal, and the distance between each of the oil outlets 62 and the center of the hub shell 10 is equal. That is, the oil inlet port 61 forms an oil inlet ring around the center of the hub shell 10, and the oil outlet port 62 forms an oil outlet ring around the center of the hub shell 10.
  • the lubricating oil moves radially outward from the central position of the hub housing 10, and the distance between the oil outlet 62 and the center of the hub housing 10 is greater than the distance between the oil inlet 61 and the center of the hub housing 10, Therefore, the radius of the oil outlet ring is larger than the radius of the oil inlet ring.
  • the oil inlet 61, the oil outlet 62, and the hub housing 10 formed in the same radial direction have a flared cross section, wherein the large diameter of the cross section faces the reducer chamber 10a.
  • the lubricating oil in the reducer chamber 10a is facilitated to enter the gap space 50 from the oil inlet 61, and exits the gap space 50 from the oil outlet 62.
  • the lip seal 30 is fully lubricated.
  • the lubrication hole 60 includes a plurality of oil inlet ports 61 and a plurality of oil outlet ports 62.
  • An oil inlet 61 and an oil outlet 62 are provided in the radial direction of the hub housing 10 to form an oil circuit circulation.
  • the lubrication holes 60 are provided as one through hole, each of which has an oil inlet surface 60a and an oil discharge surface 60b.
  • the lubricating oil in the retarder chamber 10a enters the gap space 50 through the oil inlet surface 60a due to the centrifugal force, and then the lip seal 30 is lubricated, leaving the gap space 50 from the oil discharge surface 60b. , thus forming an oil circuit cycle.
  • the lubricating oil moves radially outward from the center position of the hub housing 10, so the distance of the oil discharge surface 60b from the center of the hub housing 10 is greater than the distance between the oil inlet surface 60a and the center of the hub housing 10.
  • the cross section of the lubrication hole 60 is flared, with the large diameter of the cross section of the lubrication hole 60 facing the reducer chamber 10a. Also, due to the centrifugal force, when the large diameter of the cross section of the lubrication hole 60 faces the reducer chamber 10a, the lubricating oil in the reducer chamber 10a is facilitated to enter the gap space 50 from the oil inlet surface 60a, leaving the gap from the oil discharge surface 60b. The space 50 thus provides sufficient lubrication for the lip seal 30.
  • a plurality of lubrication holes 60 are typically provided on the hub housing 10.
  • the distance between the plurality of lubrication holes 60 and the center of the hub housing 10 is equal.
  • the lubrication hole 60 forms a lubrication eyelet around the center of the hub housing 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Sealing Of Bearings (AREA)

Abstract

L'invention concerne un système d'entraînement de moyeu, comprenant : une coque de moyeu (10), la coque de moyeu (10) comprenant à l'intérieur une cavité de réducteur de vitesse (10a) et une cavité de moteur électrique (10b) ; un croisillon de rotor (20), un palier de roulement (40) étant monté entre le croisillon de rotor (20) et la coque de moyeu (10) ; un élément d'étanchéité en forme de lèvre (30), l'élément d'étanchéité en forme de lèvre (30) étant monté entre la coque de moyeu (10) et le croisillon de rotor (20), et étant utilisé pour fermer de façon étanche la cavité de réducteur de vitesse (10a), et un espace de dégagement (50) étant formé entre l'élément d'étanchéité en forme de lèvre (30) et la coque de moyeu (10), le palier de roulement (40) et le croisillon de rotor (20) ; et un trou de lubrification (60), le trou de lubrification (60) étant disposé sur la coque de moyeu (10), et étant utilisé pour raccorder la cavité de réducteur de vitesse (10a) à l'espace de dégagement (50). Lorsqu'un dispositif d'entraînement de moyeu fonctionne, de l'huile de lubrification dans la cavité de réducteur de vitesse (10a) vient en contact avec l'élément d'étanchéité en forme de lèvre (30) par le trou de lubrification (60) pour lubrifier l'élément d'étanchéité en forme de lèvre (30), ce qui prolonge efficacement la durée de vie de l'élément d'étanchéité en forme de lèvre (30).
PCT/CN2018/098976 2017-11-09 2018-08-06 Système d'entraînement de moyeu WO2019091162A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711099450.0A CN109760505A (zh) 2017-11-09 2017-11-09 轮毂驱动系统
CN201711099450.0 2017-11-09

Publications (1)

Publication Number Publication Date
WO2019091162A1 true WO2019091162A1 (fr) 2019-05-16

Family

ID=66439098

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/098976 WO2019091162A1 (fr) 2017-11-09 2018-08-06 Système d'entraînement de moyeu

Country Status (2)

Country Link
CN (1) CN109760505A (fr)
WO (1) WO2019091162A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113954577B (zh) * 2021-11-17 2024-03-12 浙江四和机械有限公司 一种带abs传感器的轻量节能型轮毂单元

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750409A (en) * 1987-01-20 1988-06-14 Michael Ladney, Jr. Apparatus for compressing a gas
CN102792564A (zh) * 2011-03-07 2012-11-21 Ntn株式会社 电动车用驱动装置
CN103874871A (zh) * 2011-09-27 2014-06-18 Ntn株式会社 轮内马达驱动装置
WO2014168032A1 (fr) * 2013-04-11 2014-10-16 日産自動車株式会社 Unité de moteur roue pour véhicule
CN107302288A (zh) * 2016-04-01 2017-10-27 舍弗勒技术股份两合公司 轮毂驱动器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4234831C1 (de) * 1992-10-15 1994-01-05 Siemens Ag Antrieb für ein Fahrzeugrad
JP2562918Y2 (ja) * 1992-12-10 1998-02-16 株式会社小松製作所 車輪駆動装置の潤滑構造
JP2005048864A (ja) * 2003-07-28 2005-02-24 Hitachi Constr Mach Co Ltd 減速装置
JP5952045B2 (ja) * 2012-03-21 2016-07-13 アイシン・エィ・ダブリュ株式会社 駆動装置、及びインホイールモータ駆動装置
JP6192919B2 (ja) * 2012-11-02 2017-09-06 Ntn株式会社 インホイールモータ駆動装置
JP5475919B1 (ja) * 2013-11-01 2014-04-16 巴工業株式会社 密閉タイプのデカンタ型遠心分離機
US9914349B2 (en) * 2014-01-08 2018-03-13 Ntn Corporation In-wheel motor drive device
WO2016002287A1 (fr) * 2014-07-03 2016-01-07 株式会社小松製作所 Dispositif de transmission d'entraînement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750409A (en) * 1987-01-20 1988-06-14 Michael Ladney, Jr. Apparatus for compressing a gas
CN102792564A (zh) * 2011-03-07 2012-11-21 Ntn株式会社 电动车用驱动装置
CN103874871A (zh) * 2011-09-27 2014-06-18 Ntn株式会社 轮内马达驱动装置
WO2014168032A1 (fr) * 2013-04-11 2014-10-16 日産自動車株式会社 Unité de moteur roue pour véhicule
CN107302288A (zh) * 2016-04-01 2017-10-27 舍弗勒技术股份两合公司 轮毂驱动器

Also Published As

Publication number Publication date
CN109760505A (zh) 2019-05-17

Similar Documents

Publication Publication Date Title
CN105599591B (zh) 轮毂驱动总成
WO2016082628A1 (fr) Ensemble d'entraînement de moyeu
US9233604B2 (en) In-wheel motor drive assembly
EP3181937B1 (fr) Ensemble bride de raccordement et disque de frein
US2290542A (en) Clutch
CN107453538B (zh) 一种带有立柱的轮毂电机
JP6099965B2 (ja) インホイールモータ駆動装置
CN202348696U (zh) 具有外循环机构的屏蔽泵
CN201944013U (zh) 一种核电站用乏燃料水池冷却泵
WO2019091162A1 (fr) Système d'entraînement de moyeu
CN110388451B (zh) 一种中间轴制动器的油路循环结构
CN105691185B (zh) 轮毂驱动总成
JP2015080386A (ja) 電動機
CN111089154A (zh) 一种驱动桥差速器的润滑结构及驱动桥差速器总成
JP6115131B2 (ja) 乾式多板クラッチ装置
US3373927A (en) Fluid compressor
CN219242233U (zh) 一种离心式空压机的电机与叶轮间密封结构
CN112879534A (zh) 一种应用于新能源商用车的行星减速器总成
WO2023185010A1 (fr) Ralentisseur hydraulique
CN103115072A (zh) 一种油润滑轴承的密封结构
CN210111791U (zh) 一种内置减速机构的轮毂电机润滑冷却系统
WO2022227552A1 (fr) Dispositif d'embrayage et véhicule
WO2019100804A1 (fr) Ensemble d'entraînement de moyeu et véhicule
KR20060100418A (ko) 유체 역학적 클러치
CN219655123U (zh) 离合器的转毂、离合器和车辆

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: 18876619

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: 18876619

Country of ref document: EP

Kind code of ref document: A1