EP2396216A1 - Entraînement de roue - Google Patents

Entraînement de roue

Info

Publication number
EP2396216A1
EP2396216A1 EP10703405A EP10703405A EP2396216A1 EP 2396216 A1 EP2396216 A1 EP 2396216A1 EP 10703405 A EP10703405 A EP 10703405A EP 10703405 A EP10703405 A EP 10703405A EP 2396216 A1 EP2396216 A1 EP 2396216A1
Authority
EP
European Patent Office
Prior art keywords
wheel axle
wheel
axle
wheel drive
drive
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP10703405A
Other languages
German (de)
English (en)
Inventor
Rudolf Frei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FIDRIVE SWISS AG
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2396216A1 publication Critical patent/EP2396216A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M7/00—Motorcycles characterised by position of motor or engine
    • B62M7/12—Motorcycles characterised by position of motor or engine with the engine beside or within the driven wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K25/00—Axle suspensions
    • B62K25/02—Axle suspensions for mounting axles rigidly on cycle frame or fork, e.g. adjustably
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/60—Rider propelled cycles with auxiliary electric motor power-driven at axle parts
    • B62M6/65—Rider propelled cycles with auxiliary electric motor power-driven at axle parts with axle and driving shaft arranged coaxially

Definitions

  • the invention relates to a wheel drive according to the preamble of claim 1.
  • the present invention relates to wheel drives in which the drive for a wheel is arranged directly in a hub shell on the wheel.
  • wheel drives are particularly suitable for light vehicles such as bicycles and they generate a rotational movement between the wheel axle and the hub shell.
  • a torque must be achieved between the wheel axle and the hub shell of a drive motor.
  • the hub shell is rotatably mounted on the wheel axle with first pivot bearings on the wheel axle.
  • the hub shell is rigidly connected to the rolling surface of the wheel.
  • the diameter of the rolling surface, the type of drive motor and the type of transmission are selected according to the desired drive behavior and matched to each other.
  • DE 602 09 510 T2 shows a wheel drive with a non-shiftable transmission. Wheel drives with shiftable transmissions are known, for example, from DE 100 56 597 A1 and DE 692 11 558 T2.
  • the drive motor of the wheel drive is preferably an electric motor. It would also be possible to use an internal combustion engine or a hydraulic drive. To supply power to the motor used, at least one supply line must be routed into the hub shell. If control signals are also transmitted to or from the engine, appropriate control lines or control Links. For an electric motor, the number of connections required for the supply and, if necessary, for the control depends on the selected motor type. In an internal combustion engine, the fuel must be supplied and at least one gas cable must be provided.
  • the wheel axle is attached to an axle bracket of the light vehicle.
  • the axle holder is designed as a fork.
  • the axle In order for the light vehicle to be set in motion by the wheel drive, the axle must be firmly connected to the axle mount.
  • the cylindrical outer surface of the wheel axle is provided at both ends with a thread, but which is interrupted along the circumference in two mutually remote areas of parallel Achsaussen vom.
  • These axle outer surfaces are introduced as narrowed end regions in a form-fitting manner into slot-shaped openings of adaptation members, wherein the adjustment members are fastened to the fork of a bicycle.
  • the wheel axle With screwed onto the broken threads of the wheel axle nuts, the wheel axle is clamped to the fork or its adjustment members.
  • the broken threads can be damaged, making it difficult to tighten or loosen the nuts.
  • a desired tightening torque of the nuts must be checked only with precision tools.
  • the high torques in the only slightly spaced parallel Achsaussen vom the wheel axle which act due to the wheel drive from the axis of the slots of the fork, can lead to wear in the form of positive connection. If the wear is sufficiently large, it can lead to a spin of the axle in the slots of the fork, which is connected to a twisting of the lines or the cable feed.
  • the radius at the inner end of a slot matches the slot width.
  • the outer diameter of the wheel axle is greater than the slot width due to the narrowed end portions. Therefore, the axis can not be fully applied to the curvature of the inner slot end of the fork. If the wheel axle something of the inner
  • Slot end is spaced, so it is closer to the open end of the fork slot, where the torque generated by the torque easier to widen the slot.
  • the lines are not centrally outwards, but they must still be performed in the fixed inner part of a first pivot bearing to the outside.
  • the diameter of the first pivot bearing is increased in known solutions and this is placed on an intermediate piece.
  • the intermediate piece is fixedly connected to the wheel axle and comprises a passage in the axial direction for the lateral addition of leads.
  • the intermediate piece and the larger bearing lead at least on one side to a larger and more complex design and more weight, which is undesirable.
  • the outgoing lines are susceptible to injury.
  • the inventive task is now to find a simple and lightweight wheel drive, which can be easily and quickly attached to the axle holder of a vehicle, especially at fork slots, and solved. In particular, even at high torques wear and a spinning of the wheel axle should be prevented. Another object is that the lines are guided injury-safe.
  • the wheel axle should have a central hollow area at least at a front end of the wheel axle, which is kept free of lines and in which a clamping element can be used.
  • a clamping element is inserted into the at least one central hollow area.
  • the clamping element is in the mounted state of the wheel drive from the hollow area in the longitudinal direction of the wheel axle the end of the wheel axle outwards, or away from the wheel axle, and includes at the free end in the longitudinal direction of the wheel axle against the inside, and against the wheel axis out, compressible tensioner pressing surface.
  • the tensioner pressing surface abuts the axle bracket on the outside and presses it against an axle-mounted end-pressing surface of the wheel axle.
  • the clamping element extends outside the wheel axle through a passage, in particular a slot, the axle holder.
  • the wheel axle is preferably designed as a hollow axle and the tensioning element as a quick-release, wherein the quick-release comprises a rod-shaped part which can be inserted into the hollow axle and tensioner pressing surfaces pressable against the inside at both ends in the bar direction.
  • the clamping or pressing is preferably achieved via a pivotable lever with eccentric arrangement, wherein the clamping can optionally also be achieved with a screw device.
  • the clamping element extends outside the wheel axle through bushings, in particular slots, the axle holder. This solution is simple and the required parts can be mounted and replaced with little effort.
  • the hub shell is rotatably mounted on the wheel axle via first rotary bearings.
  • the wheel drive is mounted on the axle bracket of a light vehicle.
  • the wheel axle comprises two each on one end face on the end-pressing surface in the slots of the fork projecting engagement elements.
  • the engagement elements are located radially outside the tensioning element relative to the center of the wheel axle. As a result, they can already absorb higher torques without wear than the parallel axis outer surfaces known from the prior art, which are indeed formed radially within the axle diameter. The engagement elements can radially outward far enough extend, as is necessary for the safe torque absorption.
  • the engagement elements can be fastened in two different circumferential positions on the end-pressing surfaces.
  • the end-pressing surfaces are radially expanded over the outer diameter of the wheel axle, so that the best possible support of the end-pressing surfaces is ensured at the Achs- holders.
  • the end-pressing surfaces are formed on plug-in end parts of the wheel axle.
  • the mated parts in the mutual contact area comprise form-fitting adapted engagement shapes, such as gears, which extend in the circumferential direction about the center of the wheel axle.
  • a hard chromium steel is used for the middle part of the wheel axle and an anticorrudal softer material, in particular an aluminum alloy, is used for the end parts.
  • One of the two end parts preferably comprises a cable guide, which takes over the lines guided from the wheel drive at a cable channel of the central part of the hollow wheel axle and radially away relative to the wheel axis, for example, to a connector which is arranged on the end part with the cable guide.
  • the termination part with the cable guide preferably comprises a watertight plug.
  • the termination part with the cable guide the cable and the plug a unit that greatly facilitates mounting and dismounting because the secondary lines are not connected during the work. With a simple plug-in or pull-out handle, the secondary lines can be connected or disconnected.
  • the terminating part connects to the inside of the assigned axle mount, the cable is extremely well protected against damage, even if the radially leading cable guide is slightly away from the axle mount and out to the outside. Because the cable guide is located at the end of the wheel axle, the tensioner can be removed without it remaining in contact with the cable. If in the hollow axle a cable duct parallel to the longitudinal direction tion is formed, lines can be led out laterally within the first pivot bearing from the hub shell laterally without an intermediate piece between the wheel axle and the first pivot bearing is used. It can be used a first pivot bearing whose inner diameter corresponds to the outer diameter of the wheel axle, which allows a small and lightweight design.
  • the preferred electric drive motor includes a stator with the windings.
  • the stator is arranged torsion-proof on the wheel axle and is held on the drive axle via a form-locking rotation lock.
  • the twist lock comprises grooves on the wheel axle and on the stator in the longitudinal direction of the wheel axle and a common wedge inserted in the latter.
  • the rotating motor part comprises the windings facing permanent magnets. It goes without saying that the rotating part may optionally comprise windings, in which case rotary feeders are necessary, which leads to a more complicated construction.
  • the rotating motor part is rotatably mounted on the wheel axle via at least one second rotary bearing and comprises an outer sprocket surrounding the wheel axle.
  • a planetary gear comprises in addition to the outer ring gear a rotatably fixed to the wheel axle arranged gear part and rotatably mounted transmission gears.
  • the hub shell comprises an inner ring gear of the planetary gear. The rotation of the outer sprocket is transmitted via the transmission gears on the inner sprocket.
  • a floating bearing is selected between the wheel axle and the transmission part and elastic bearing elements are used in the bearings of the transmission gears.
  • a positive torsion protection comprises on the wheel axle and on the gear part at least one pair of grooves in the longitudinal direction of the wheel axle and inserted into this each a common wedge. It goes without saying that instead of an inserted wedge on the gear part or optionally on the wheel axle, a tooth or a tooth trace can be formed.
  • a particularly advantageous embodiment of the wheel drive is designed so that all components can be inserted one after the other, on and in the middle part of the wheel axle.
  • the middle part of the wheel axle comprises two cylindrical sections and a radially projecting stop for a second pivot bearing therebetween.
  • two standard ball bearings are pushed together with the rotor of the drive motor on the middle part of the wheel axle and arranged side by side at the stop.
  • a wedge is inserted in the groove of the torsion protection of the stator and the stator pushed onto the middle part of the wheel axle until it is in the desired position on the rotor at the wheel axle.
  • the transmission part with the transmission gears and a wedge between the wheel axle and the transmission part is attached. Subsequently, a second housing part of the hub shell with a second pivot bearing can be partly placed on the middle part of the wheel axle.
  • the two housing parts are connected to each other, in particular screwed together.
  • end parts of the wheel axle are attached to both sides of the middle part, whereby their teeth are inserted into one another under the first pivot bearings.
  • the terminating part with the continuing cable guide is arranged at the stator or at the exiting cable so that the cable passes from the axial channel section of the middle part of the wheel axle into the radially leading away channel section of the terminating part.
  • At the two end parts of the engagement elements are attached, which protrude for the usual Achshalterept or forks with slots preferably from the end-pressing surfaces of the wheel axle.
  • the closed hub shell and the fully assembled wheel axle form a wheel drive in which all parts are plugged together and the housing was screwed without the need for fixing on the axis more fasteners were needed.
  • the assembly is thus easy and it is only a minimum number of parts needed.
  • the remaining parts of a wheel preferably in the form of spokes and a rim, and optionally a brake disc are mounted.
  • the wheel can be mounted with the wheel drive on a fork, in which the wheel axle is inserted into the mounting area of the fork and a quick release is inserted through the central cavity of the wheel axle.
  • FIG. 4c front and side view of an engagement member which can be fixed in two different positions on the end part with cable guide according to Fig. 4b.
  • Fig. 1 shows a wheel drive 1 which is complained to a schematically illustrated fork 2 of the front wheel of a bicycle.
  • the fork 2 comprises at the two free ends the slots 3 for mounting a wheel.
  • the wheel drive 1 comprises a three-part wheel axle 4, which is composed of a middle part 4a and a first and a second end part 4b and 4c.
  • a two-part hub shell 6 is rotatably mounted on the wheel axle 4 via first pivot bearings 5, the two partial housings 6 a and 6 b being connected to one another via a thread 7.
  • a drive motor 8 is arranged, with which the hub shell 6 can be set about the wheel axle 4 in rotary motion.
  • the wheel axle 4 is formed as a hollow axle, in which the central hollow portion extends through the entire wheel axle 4.
  • a clamping element 9 is arranged in the central cavity of the wheel axle 4, which extends through the entire central cavity and protrudes on both sides over the ends of the wheel axle 4 and at both free ends depending on a pressable in the longitudinal direction of the wheel axle 4 against inside tensioner pressing surface 10 includes.
  • the tensioner pressing surfaces 10 abut on both sides on the outside at the free ends of the fork 2, wherein the clamping element 9 is guided through the two slots 3.
  • end-pressing surfaces 11 are formed which are arranged on the inside of the fork 2.
  • the wheel drive 1 comprises at both end-pressing surfaces 11 of the wheel axle 4, an engagement member 14 which ensures a positive engagement with the fork 2, preferably at slots of the fork 2, in the mounted state of the wheel drive 1, wherein the engagement elements 14 relative to the center of the wheel axle 4 radially outside the cylindrical portions of the clamping element 9 between the tensioner pressing surfaces 10 and the end-pressing surfaces 11 are arranged.
  • first and the second end part 4b and 4c due to the engagement elements 14 rotatably connected to the fork 2 must also be formed between the end parts 4b, 4c and the middle part 4a of the wheel axle a rotation, so that the entire wheel axle 4th Turn firmly on the fork 2 is mounted.
  • the adjoining regions of the middle part 4a and each end part 4b, 4c have mating engagement ends which preferably comprise gearing 15, which extend in the circumferential direction around the center of the wheel axle 4.
  • the first pivot bearings 5 surround the mated engagement ends, thereby increasing the stability of the connections of the middle part 4a to the end parts 4b, 4c.
  • the drive motor is an electric motor with a wound stator 24 which is fixedly connected to the stator 16.
  • the rotating motor part 25 is rotatably mounted with two second pivot bearings 26 on the wheel axle 4 and comprises a Radach- se 4 enclosing outer sprocket 27 which engages in transfer gears 28 of a planetary gear.
  • the Studentstagungsstattson 28 are rotatably mounted on a rotationally fixed on the wheel axle 4 arranged gear part 29.
  • the hub shell 6 includes an inner ring gear 30, wherein the rotation of the outer ring gear 27 is transmitted via the transmission gears 28 on the inner ring gear 30 and thus on the hub shell 6. Between the wheel axle 4 and the transmission part 29 a floating bearing and a positive rotation assurance is formed.
  • the anti-rotation device illustrated comprises grooves 17 on the wheel axle 4 and on the transmission part 29 in the longitudinal direction of the wheel axle 4 and a common wedge 18 inserted therein.
  • third rotary bearings 31 are mounted on retaining bolts 33 via elastic support elements 32.
  • an axial cable channel 19 is formed to the second end part 4c.
  • a further cable guide with a further axial channel section 20 and a channel section 21 leading radially away relative to the wheel axle 4 adjoin the axial cable channel 19.
  • a receiving area 22 is formed, to which a plug 23 is attached.
  • the hub shell 6 includes fasteners 34 for securing spokes, not shown. If necessary, a brake disk 35 is attached to the hub shell 6.
  • FIG. 2 shows a wheel axle 4, which comprises a central hollow area with an internal thread at both front ends.
  • clamping elements 9 are screwed into the internal threads of the hollow areas.
  • the clamping elements 9 are in the mounted state of the wheel drive 1 from the hollow areas in the longitudinal direction of the wheel axle 4 via the end of the wheel axle 4 to the outside.
  • the clamping elements comprise, in the longitudinal direction of the wheel axle, compressible clamping surfaces 10 which can be pressed inwards and which press the axle holder, not shown, against abutting end pressing surfaces 11 of the wheel axle 4.
  • the engagement elements 14 ensure the desired anti-rotation.
  • the wheel axle 4 can also be connected to the axle mount only at one end, in which case the wheel axle 4 only comprises a hollow area on this side and only one tensioning element 9 is used.
  • 3a to 3d show a particularly advantageous designed central part 4a of the wheel axle 4.
  • the axial cable channel 19 and provided for the anti-rotation grooves 17 and the teeth 15 are clearly visible.
  • a circumferential groove 36th provided, which holds the stator 16 with a Seeger used in the circumferential groove 36 at the desired location.
  • a stop surface 37 is formed. The narrowed ends 38 can be inserted into the end elements 4b and 4c and reinforce the connections to them.
  • FIGS. 4 a and 4 b show a second end element 4 c with a push-on connection 42, which is adapted to the narrowed end 38 and has a toothing 15.
  • a plug 23 can be fixed with grub screws 44.
  • FIG. 4c shows the engagement element 14 which is fastened to the end pressing surface 11 by a screw 39, wherein the end pressing surface 11 preferably comprises at least two different fixing means for fastening the engagement element 14 and each fixing device preferably has a stop surface 40 for aligning the engagement element Engagement element 14 and a connecting device, in particular a bore 41 with an internal thread comprises.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

L'invention concerne un entraînement de roue (1) comprenant un essieu (4), un carter de moyeu (6) monté à rotation par l'intermédiaire d'un premier palier rotatif (5) sur l'essieu (4) et un moteur d'entraînement (8) qui est disposé dans le carter de moyeu (6) et par lequel le carter de moyeu (6) peut être mis en rotation autour de l'essieu (4), l'entraînement de roue (1) étant à monter sur le support d'essieu (2) d'un véhicule léger. L'essieu (4) comporte au moins à son extrémité frontale une zone creuse centrale dans laquelle un élément de serrage (9) peut être inséré. Quand l'entraînement de roue est monté, l'élément de serrage (9) fait saillie de la zone creuse dans la direction longitudinale de l'essieu (4) au-delà de l'extrémité de l'essieu (4) vers l'extérieur et une surface de pressage (10) de l'élément de serrage pouvant être pressée vers l'intérieur dans la direction longitudinale de l'essieu (4) est formée à l'extrémité en saillie, cette surface de pressage permettant de presser le support d'essieu (2) contre une surface de pressage frontale (11) de l'essieu de roue (4) adjacente au support d'essieu (2). Cet entraînement de roue (1) est structurellement simple et léger. Il peut être fixé sans problème et rapidement sur le support d'essieu d'un véhicule léger et en être enlevé.
EP10703405A 2009-02-16 2010-02-01 Entraînement de roue Withdrawn EP2396216A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2442009A CH700460A2 (de) 2009-02-16 2009-02-16 Radantrieb.
PCT/CH2010/000024 WO2010091524A1 (fr) 2009-02-16 2010-02-01 Entraînement de roue

Publications (1)

Publication Number Publication Date
EP2396216A1 true EP2396216A1 (fr) 2011-12-21

Family

ID=42035547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10703405A Withdrawn EP2396216A1 (fr) 2009-02-16 2010-02-01 Entraînement de roue

Country Status (4)

Country Link
EP (1) EP2396216A1 (fr)
CN (1) CN102317143A (fr)
CH (1) CH700460A2 (fr)
WO (1) WO2010091524A1 (fr)

Families Citing this family (12)

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Publication number Priority date Publication date Assignee Title
US9010792B2 (en) 2012-03-16 2015-04-21 Specialized Bicycle Components, Inc. Torque element for a motor-driven bicycle
US10005352B2 (en) 2014-09-15 2018-06-26 Ford Global Technologies, Llc Electrical bicycle modular powertrain
DE102015203677B3 (de) * 2015-03-02 2016-09-08 Schaeffler Technologies AG & Co. KG Radnabenmotor für ein Fahrrad sowie Fahrrad mit dem Radnabenmotor
JP6853161B2 (ja) * 2017-11-09 2021-03-31 株式会社シマノ 車輪取付具の軸部材及び車輪取付具
DE102019107199B4 (de) * 2019-03-20 2021-02-11 Mechtronic GmbH Einseitig lösbare Befestigung radmontierter Elektromotoren
CN110206019B (zh) * 2019-05-22 2023-12-15 天津港航工程有限公司 一种板桩码头钢拉杆快速张紧装置
CN210455094U (zh) * 2019-07-22 2020-05-05 李海军 一种单摇臂平叉总成
CN112224331A (zh) * 2020-09-28 2021-01-15 深圳市旋力科技有限公司 一种胎皮可拆卸的轮毂电机
TW202224967A (zh) * 2020-12-25 2022-07-01 日商島野股份有限公司 用於人力車輛的輪轂
EP4151513B1 (fr) * 2021-09-16 2024-10-30 MAHLE International GmbH Dispositif de moteur pour bicyclette électrique
DE102022103637A1 (de) 2022-02-16 2023-08-17 Porsche Ebike Performance Gmbh Antriebsvorrichtung, Fahrzeug und modulares System
DE102022133475B3 (de) 2022-12-15 2024-05-29 Porsche Ebike Performance Gmbh Fahrradnabe, System, Fahrrad und Verfahren zur Montage einer Fahrradnabe

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US6089675A (en) * 1997-08-19 2000-07-18 Schlanger; Raphael Quick release bicycle hub assembly
DE10127769B4 (de) * 2001-06-07 2004-09-30 Wingenbach, Martin Antriebsanordnung für ein Fahrrad
US7287772B2 (en) * 2004-01-12 2007-10-30 West Coast Choppers, Inc. Apparatus and method for securing an axle to a frame
CN2868836Y (zh) * 2004-11-02 2007-02-14 贵州群建齿轮有限公司 低噪音分体式电驱动轮
US7494145B2 (en) * 2006-10-27 2009-02-24 Answer Products, Inc. Axle with non-round tapered ends affixed into fork leg dropouts with openings that match the axle ends for a bicycle fork
CN201245225Y (zh) * 2008-06-23 2009-05-27 苏州八方电机科技有限公司 电动轮毂快拆装置

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Title
See also references of WO2010091524A1 *

Also Published As

Publication number Publication date
CN102317143A (zh) 2012-01-11
WO2010091524A1 (fr) 2010-08-19
CH700460A2 (de) 2010-08-31

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