WO2014102949A1 - 車輪用オイル供給装置、車輪駆動装置 - Google Patents
車輪用オイル供給装置、車輪駆動装置 Download PDFInfo
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- WO2014102949A1 WO2014102949A1 PCT/JP2012/083801 JP2012083801W WO2014102949A1 WO 2014102949 A1 WO2014102949 A1 WO 2014102949A1 JP 2012083801 W JP2012083801 W JP 2012083801W WO 2014102949 A1 WO2014102949 A1 WO 2014102949A1
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- WIPO (PCT)
- Prior art keywords
- oil
- wheel
- hub bearing
- oil supply
- hub
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0047—Hubs characterised by functional integration of other elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0005—Hubs with ball bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0073—Hubs characterised by sealing means
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- 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
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
-
- 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
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
- B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
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- 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
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6685—Details of collecting or draining, e.g. returning the liquid to a sump
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/50—Improvement of
- B60B2900/561—Lubrication
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- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
-
- 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
- B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/03—Lubrication
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
Definitions
- the present invention relates to an oil supply device assigned to a wheel.
- Patent Document 1 discloses an oil supply device assigned to a wheel.
- This oil supply device has a structure for supplying oil to a hub bearing that rotatably supports a hub connected to a disk wheel of a wheel. According to this structure, the oil lubrication function is performed in the hub bearing.
- a known oil seal is generally used to seal the oil supplied to the hub bearing. The oil seal functions to seal the oil supplied to the hub bearing by the seal lip being in sliding contact with the sliding surface of the hub bearing.
- the present invention has been made in view of the above points, and one of its purposes is to rotatably support a hub connected to a disc wheel of a wheel in a wheel oil supply device assigned to the wheel. It is an object of the present invention to provide an effective technique for preventing oil supplied to a hub bearing from leaking to an unplanned area outside the hub bearing.
- the wheel oil supply device is a device assigned to a vehicle wheel, and includes an oil supply path, an oil seal, and an oil guide path.
- the oil supply path is a path for supplying oil to a hub bearing that rotatably supports a hub connected to a disc wheel of the wheel. Lubricating oil is supplied to the hub bearing through this oil supply path.
- the oil seal is interposed between the hub bearing and the outer region of the hub bearing, and functions to seal the oil supplied to the hub bearing through the oil supply path.
- the oil guiding path is a path for guiding oil leaking from the hub bearing through the oil seal to the outside area of the hub bearing to a preset discharging area.
- the oil guiding path can be configured using a space in which a predetermined amount of oil can be stored, a groove-shaped or hole-shaped communication path, and the like.
- the wheel oil supply device further includes a dust seal interposed between the hub bearing and the outer region of the hub bearing and sealing dust flowing into the hub bearing from the outer region of the hub bearing.
- the oil guide path preferably includes a space defined by the oil seal and the dust seal in the outer region of the hub bearing, and a communication path that communicates the space with the discharge region.
- the discharge region is preferably provided in a region excluding a brake mechanism that applies a braking force to the wheel. Accordingly, it is possible to prevent the oil leaked from the hub bearing to the hub bearing outer region from flowing into the brake mechanism and reducing the braking force applied to the wheel.
- the discharge region is preferably an oil reservoir in which oil supplied to the hub bearing is stored.
- the wheel drive device is a device for driving a vehicle wheel, and includes an in-wheel motor, a hub, a hub bearing, a first oil supply mechanism, and a second oil supply mechanism.
- the in-wheel motor is an electric motor provided as a drive source for wheels.
- the hub is rotated by the driving force of the in-wheel motor and is connected to the disc wheel of the wheel.
- the hub bearing functions to rotatably support the hub.
- the first oil supply mechanism functions to supply oil to the in-wheel motor.
- the second oil supply mechanism functions to supply oil to the hub bearing. This second oil supply mechanism is configured using the aforementioned wheel oil supply device.
- an annular ring is used in order to secure a region for arranging a power transmission mechanism such as a speed reducer interposed between the in-wheel motor and the hub.
- the diameter of the hub bearing is larger than the structure without the in-wheel motor.
- the negative pressure pressure difference between the hub bearing and the outer area of the hub bearing
- Oil can be prevented from leaking into areas that are not planned.
- the oil supplied to the hub bearing that rotatably supports the hub connected to the disc wheel of the wheel is in the hub bearing outer region. It has become possible to prevent leaking into unplanned areas.
- FIG. 1 It is a figure which shows schematic structure of the oil supply apparatus 100 provided in the wheel drive mechanism for driving the wheel 101.
- FIG. It is an enlarged view of B area
- FIG. 1 shows a wheel drive mechanism (also referred to as “wheel drive device”) for independently driving each of a plurality of wheels (also referred to as “wheels”) 101 provided in the vehicle.
- the wheel 101 is driven using the driving force of an electric motor (also referred to as “in-wheel motor”) 110 as a driving source.
- This motor 110 corresponds to the “in-wheel motor” of the present invention.
- the wheel 101 includes a tire (not shown) and a disc wheel 102.
- the disc wheel 102 includes a rim that holds a tire and a disc that is coupled to the hub 140.
- the hub 140 is rotated by the driving force of the motor 110, and thereby the wheel 101 is driven.
- an arrow D1 indicates the vehicle outer side
- an arrow D2 in the drawing indicates the vehicle inner side.
- a stator core 112 around which a stator coil is wound, a rotor 113, and a gear 114 are accommodated.
- the rotor 113 extends in a long axis shape, and a gear 114 is integrally provided at one end 113a thereof.
- a permanent magnet is attached to the rotor 113. Therefore, a rotating magnetic field is formed by passing an alternating current through the stator coil wound around the stator core 112, and the rotor 113 attracted to the rotating magnetic field rotates together with the gear 114.
- the driving force of the motor 110 is transmitted to the rotating shaft (driving shaft) 121 engaged with the gear 114, and the rotating shaft 121 rotates around the axle A.
- a planetary gear (planetary gear) 130 is interposed between the rotating shaft 121 and the hub 140. More specifically, a sun gear (not shown) provided on the rotating shaft 121 and a ring gear (not shown) provided on the inner race 104 fixed to the vehicle body side fixing member (typically, a knuckle or carrier) 103. The planetary gear 130 is interposed between them. The planetary gear 130 meshes with both the sun gear and the ring gear, and is connected to the hub 140. The planetary gear 130 revolves around the sun gear when the rotary shaft 121 is driven to rotate, thereby serving as a speed reducer that reduces the rotation of the rotary shaft 121 and transmits it to the hub 140.
- the hub 140 is driven to rotate, and the driving force is transmitted to the wheel 101 (tire and disk wheel 102) connected to the hub 140.
- the hub 140 is rotatably supported by a hub bearing 142 configured in an annular shape.
- the hub 140 and the hub bearing 142 here correspond to the “hub” and the “hub bearing” of the present invention, respectively.
- the wheel drive mechanism described above includes a disc brake mechanism 190 that applies a braking force to the wheel 101.
- the disc brake mechanism 190 is disposed radially outward of the hub bearing 142 and includes a brake disc rotor 191 and a brake caliper 192.
- the brake disc rotor 191 is fixed to the hub 140 and configured as a member that rotates integrally with the wheel 101.
- the brake caliper 192 functions to generate a frictional force that serves as a braking force for the wheels 101 by pressing a brake pad, which is a friction material, against the brake disc rotor 191.
- the disc brake mechanism 190 corresponds to the “brake mechanism” of the present invention.
- the wheel drive mechanism includes an oil supply device 100 that is an embodiment of the “wheel oil supply device” of the present invention.
- This oil supply device 100 is assigned to the wheel 101. That is, the oil supply device 100 can also be regarded as one component of the wheel drive mechanism of the wheel 101.
- the oil supply apparatus 100 includes an oil pump 120, an oil reservoir 150, a suction path 160, a first oil supply path 170, a first oil discharge path 171, a second oil supply path 180, and a second oil discharge path 183. including.
- the oil pump 120 is built in the rotating shaft 121 and is operated by the rotational driving force of the rotating shaft 121.
- the oil reservoir (also referred to as “reservoir tank”) 150 functions to store lubricating or cooling oil (also referred to as “lubricating oil”). In the operating state of the oil pump 120, the oil stored in the oil reservoir 150 is sucked into the oil pump 120 through the suction path 160, is increased in pressure, and is discharged.
- This oil reservoir 150 corresponds to the “
- Oil discharged from the oil pump 120 is supplied to a predetermined oil supply destination of the wheel drive mechanism through each of the first oil supply path 170 and the second oil supply path 180. Accordingly, at least one of an oil lubrication function and a cooling function is performed at the oil supply destination. Thereafter, the oil is discharged to the oil reservoir 150 through the first oil discharge path 171 with respect to the first oil supply path 170, whereby the oil circulation path between the oil supply destination and the oil reservoir 150 is obtained. Is established. Similarly, the oil is circulated between the oil supply destination and the oil reservoir 150 by discharging the oil to the oil reservoir 150 through the second oil discharge path 183 with respect to the second oil supply path 180. A route is established.
- the first oil supply path 170 is a path for connecting the oil pump 120 to the space in the motor housing 111 of the motor 110, and the oil discharged from the oil pump 120 passes through the first oil supply path 170.
- the oil is supplied to an oil supply destination such as a stator coil of the motor 110 or a speed reducer.
- the oil pump 120 and the first oil supply path 170 constitute a mechanism for supplying oil to the motor 110 (the “first oil supply mechanism” in the present invention).
- the second oil supply path 180 is a path that connects the oil pump 120 and the hub bearing 142, and the oil discharged from the oil pump 120 passes through the second oil supply path 180 to the hub bearing 142. Supplied.
- the oil pump 120 and the second oil supply path 180 constitute a mechanism for supplying oil to the hub bearing 142 (the “second oil supply mechanism” in the present invention).
- the second oil supply path 180 is constituted by oil flow paths 181 and 182 in particular.
- the oil flow passage 181 is a flow passage that extends in the axle direction (extending direction of the axle A) in the center of the wheel 101 and in which oil flows from the inside of the wheel toward the outside of the wheel.
- the oil flow passage 181 is provided in the rotating shaft 121 so as to extend in the axle direction. That is, the oil flow passage 181 is configured by the rotating shaft 121.
- the oil flow passage 182 is a flow passage for connecting the oil flow passage 181 and the region of the hub bearing 142.
- the oil flow passage 182 is provided in the hub 140. That is, the oil flow passage 182 is configured by the hub 140.
- the hub bearing 142 includes an inner race 104 that is a stationary member, an outer race 141 that is a rotating member that rotates integrally with the hub 140 with respect to the inner race 104, and the inner race 104. And a bearing ball 143 held between the outer race 141 and the outer race 141.
- a partitioned region 144 region inside the hub bearing 142 defined by the outer peripheral surface 105a of the cylindrical radial facing portion 105 of the inner race 104 and the inner peripheral surface 141a of the cylindrical outer race 141 is formed. This is a rolling region where the bearing ball 143 rolls.
- annular oil seal 145 and a dust seal 146 are attached to the outer race 141.
- the oil seal 145 is interposed between the hub bearing 142 and a region outside the hub bearing 142 (the hub bearing outer region 148), an outer peripheral surface thereof is fixed to the outer race 141, and a seal lip ( Oil lip) 145a.
- the seal lip 145 a is in sliding contact with the outer peripheral surface 105 a of the radially facing portion 105 of the inner race 104. Therefore, when the outer race 141 rotates about the axle A with respect to the inner race 104, the outer peripheral surface 105a of the radially facing portion 105 becomes a sliding surface with the seal lip 145a of the oil seal 145, and the sliding surface is substantially the same.
- a typical oil seal function (function of sealing oil supplied to the hub bearing 142 through the second oil supply path 180) is achieved.
- This oil seal 145 corresponds to the “oil seal” of the present invention.
- the dust seal 146 is interposed between the hub bearing 142 and the hub bearing outer region 148, the outer edge of the vehicle is fixed to the outer race 141, and a seal lip (dust strip) 146 a is attached to the inner edge of the vehicle.
- the seal lip 146 a is in sliding contact with the facing surface 106 a of the axially facing portion 106 of the inner race 104. Accordingly, when the outer race 141 rotates about the axle A with respect to the inner race 104, the facing surface 106a of the axial facing portion 106 becomes a sliding surface with the seal lip 146a of the dust seal 146, and the sliding surface is substantially the same.
- a dust seal function (function of sealing dust flowing into the hub bearing 142) is achieved.
- the dust seal 146 corresponds to the “dust seal” of the present invention.
- the dust seal 146 together with the oil seal 145 and the inner race 104, defines a space 147 that is a part of the hub bearing outer region 148.
- a communication path 149 configured by a path 103 a provided in the vehicle body side fixing member 103 and a path 104 a provided in the inner race 104 is provided.
- the communication path 149 has one end communicating with the space 147 and the other end communicating with the second oil discharge path 183. Therefore, the space 147 and the communication path 149 are oil guides that guide oil leaked from the hub bearing 142 through the oil seal 145 to the hub bearing outer region 148 to a preset discharge region (the oil reservoir 150 in the present embodiment). Acts as a pathway.
- the oil reservoir 150 which is a discharge area is provided in an area excluding the disc brake mechanism 190 in each area of the vehicle or the wheel drive mechanism.
- the space 147 and the communication path 149 correspond to the “space” and “communication path” of the present invention, respectively.
- the space 147 and the communication path 149 further add a second oil discharge path 183 to constitute the “oil guide path” of the present invention.
- the space 147 communicates with the second oil discharge path 183 through the communication path 149, a negative pressure is generated by the fluid suction action of the seal lip 145a, and the hub bearing 142 and the hub are separated from the seal lip 145a of the oil seal 145. It is possible to prevent a pressure difference from occurring between the outer region 148 and the bearing. As a result, the oil leaked from the hub bearing 142 into the space 147 flows preferentially into the communication path 149, and the oil adversely affects the brake parts such as the disc brake mechanism 190 and the hub bearing outer region 148. It is possible to prevent entry into areas that are not planned to be affected.
- the oil supply device 100 suitable for the wheel driving device that drives the wheel 101 by the driving force of the motor 110 can be realized.
- the present invention is not limited to the above exemplary embodiment, and various applications and modifications are possible.
- each of the following embodiments to which the above embodiment is applied can be implemented.
- the oil reservoir 150 is set as a discharge region in which oil leaked from the hub bearing 142 into the space 147 is described.
- various types other than the oil reservoir 150 are used as the discharge region. It is also possible to select a region, particularly preferably a region excluding the brake mechanism.
- the structure of the oil guide path is not limited to this, and the oil guide path can be configured by using, for example, at least one of a space and a groove-shaped or hole-shaped communication path.
- the space 147 is partitioned by using the oil seal 145 and the dust seal 146 has been described.
- at least a member corresponding to the oil seal 145 is used to define a region corresponding to the space 147.
- a compartment can be formed.
- the dust seal 146 can be omitted if necessary.
- the oil supply device 100 assigned to the wheel drive mechanism in which the drive source of the wheel 101 is the motor 110 has been described, but all or part of the drive source of the wheel is a drive source other than the motor 110 (typically Specifically, the present invention can also be applied to an oil supply device assigned to a wheel drive mechanism that is an internal combustion engine.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims (5)
- 車両の車輪に割り当てられる車輪用オイル供給装置であって、
前記車輪のディスクホイールに連結されるハブを回転可能に支持するハブベアリングにオイルを供給するためのオイル供給経路と、
前記ハブベアリングとハブベアリング外領域との間に介装され、前記オイル供給経路を通じて前記ハブベアリングに供給されたオイルをシールするためのオイルシールと、
前記ハブベアリングから前記オイルシールを経て前記ハブベアリング外領域に漏れたオイルを予め設定された排出領域に誘導するためのオイル誘導経路と、
を含む、車輪用オイル供給装置。 - 請求項1に記載の車輪用オイル供給装置であって、
前記ハブベアリングと前記ハブベアリング外領域との間に介装され、前記ハブベアリング外領域から前記ハブベアリングに流入する塵埃をシールするダストシールを含み、
前記オイル誘導経路は、前記ハブベアリング外領域のうち前記オイルシールと前記ダストシールとによって区画される空間と、前記空間を前記排出領域に連通させる連通路と、を含む、車輪用オイル供給装置。 - 請求項1又は2に記載の車輪用オイル供給装置であって、
前記排出領域は、前記車輪に制動力を付与するブレーキ機構を除く領域に設けられている、車輪用オイル供給装置。 - 請求項1から3のうちのいずれか一項に記載の車輪用オイル供給装置であって、
前記排出領域は、前記ハブベアリングに供給するオイルが貯留されるオイルリザーバである、車輪用オイル供給装置。 - 車両の車輪を駆動する車輪駆動装置であって、
前記車輪の駆動源として設けられる電動のインホイールモータと、
前記インホイールモータの駆動力によって回転するとともに、前記車輪のディスクホイールに連結されるハブと、
前記ハブを回転可能に支持するハブベアリングと、
前記インホイールモータにオイルを供給するための第1のオイル供給機構と、
前記ハブベアリングにオイルを供給するための第2のオイル供給機構と、
を含み、
前記第2のオイル供給機構は、請求項1~4のいずれか一項に記載の車輪用オイル供給装置を用いて構成されている、車輪駆動装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/655,511 US9387722B2 (en) | 2012-12-27 | 2012-12-27 | Wheel oil supply device and wheel driving device |
EP12891320.9A EP2940328A4 (en) | 2012-12-27 | 2012-12-27 | OIL SUPPLY DEVICE FOR WHEELS AND WHEEL DRIVE DEVICE |
JP2014553953A JPWO2014102949A1 (ja) | 2012-12-27 | 2012-12-27 | 車輪用オイル供給装置、車輪駆動装置 |
PCT/JP2012/083801 WO2014102949A1 (ja) | 2012-12-27 | 2012-12-27 | 車輪用オイル供給装置、車輪駆動装置 |
CN201280078037.5A CN104884829A (zh) | 2012-12-27 | 2012-12-27 | 车轮用机油供给装置、车轮驱动装置 |
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PCT/JP2012/083801 WO2014102949A1 (ja) | 2012-12-27 | 2012-12-27 | 車輪用オイル供給装置、車輪駆動装置 |
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US (1) | US9387722B2 (ja) |
EP (1) | EP2940328A4 (ja) |
JP (1) | JPWO2014102949A1 (ja) |
CN (1) | CN104884829A (ja) |
WO (1) | WO2014102949A1 (ja) |
Cited By (3)
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EP3138715A1 (en) * | 2015-08-29 | 2017-03-08 | Fairfield Manufacturing Company, Inc. | Wheel motor cooling system with equally divided flow |
JP2018065470A (ja) * | 2016-10-19 | 2018-04-26 | トヨタ自動車株式会社 | インホイールモータのオイル漏れ監視構造 |
CN113954577A (zh) * | 2021-11-17 | 2022-01-21 | 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 |
Families Citing this family (4)
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US9505299B1 (en) * | 2015-10-07 | 2016-11-29 | Deere & Company | Fluid evacuation system for drive chamber |
DE102017208742A1 (de) * | 2017-05-23 | 2018-11-29 | Zf Friedrichshafen Ag | Radkopfanordnung |
CN108953972A (zh) * | 2018-08-07 | 2018-12-07 | 湖北火鑫消防车辆装备有限公司 | 一种车辆从动轮轴承润滑油的循环冷却系统 |
CN108870055A (zh) * | 2018-08-07 | 2018-11-23 | 湖北火鑫消防车辆装备有限公司 | 一种车辆主动轮轮轴润滑油的循环冷却系统 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3138715A1 (en) * | 2015-08-29 | 2017-03-08 | Fairfield Manufacturing Company, Inc. | Wheel motor cooling system with equally divided flow |
US9853523B2 (en) | 2015-08-29 | 2017-12-26 | Fairfield Manufacturing Company, Inc. | Wheel motor cooling system with equally divided flow |
KR101838621B1 (ko) | 2015-08-29 | 2018-03-14 | 페이필드 매뉴팩처링 컴파니, 인코포레이티드 | 균등 분할 흐름을 갖는 휠 모터 냉각 시스템 |
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CN113954577A (zh) * | 2021-11-17 | 2022-01-21 | 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 |
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 |
Also Published As
Publication number | Publication date |
---|---|
US9387722B2 (en) | 2016-07-12 |
EP2940328A1 (en) | 2015-11-04 |
JPWO2014102949A1 (ja) | 2017-01-12 |
EP2940328A4 (en) | 2016-11-23 |
CN104884829A (zh) | 2015-09-02 |
US20150328925A1 (en) | 2015-11-19 |
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