WO2019053940A1 - シャシダイナモ装置用負荷モータ - Google Patents
シャシダイナモ装置用負荷モータ Download PDFInfo
- Publication number
- WO2019053940A1 WO2019053940A1 PCT/JP2018/018071 JP2018018071W WO2019053940A1 WO 2019053940 A1 WO2019053940 A1 WO 2019053940A1 JP 2018018071 W JP2018018071 W JP 2018018071W WO 2019053940 A1 WO2019053940 A1 WO 2019053940A1
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- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- axial direction
- connecting portion
- peripheral wall
- load motor
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/24—Devices for sensing torque, or actuated thereby
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1735—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at only one end of the rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/16—Rotary-absorption dynamometers, e.g. of brake type
- G01L3/22—Rotary-absorption dynamometers, e.g. of brake type electrically or magnetically actuated
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Definitions
- the present invention relates to a load motor for a chassis dynamo device provided in a chassis dynamo device for performing a performance test of an automobile.
- a chassis dynamo apparatus of this type has a load motor whose rotor shaft is coupled non-rotatably to a drive wheel of an automobile, a contact roller rotatably supported by a machine frame, and a rotation shaft of the contact roller. And a compensation motor in which a rotor shaft is fixed so as not to relatively rotate (see, for example, Patent Document 1).
- a load motor whose rotor shaft is coupled non-rotatably to a drive wheel of an automobile, a contact roller rotatably supported by a machine frame, and a rotation shaft of the contact roller.
- a compensation motor in which a rotor shaft is fixed so as not to relatively rotate (see, for example, Patent Document 1).
- an intermediate shaft extending outward of the case is connected to the rotor shaft.
- the flange portion at the tip of the intermediate shaft is fixed by bolts to the hub portion of the drive wheel via the spacer.
- the current or frequency flowing to the load motor is controlled to provide an actual load, ie
- chassis dynamo device a flange portion at the tip of an intermediate shaft extending outward of the case of the load motor is connected to the drive wheel connection portion while the drive wheel is removed from the drive wheel connection portion of the automobile.
- the load motor of this chassis dynamo device is greatly projected to the outside of the vehicle body, like the load motor provided in the conventional chassis dynamo device.
- the present invention is a load motor for a chassis dynamo device provided in a chassis dynamo device for performing a performance test of an automobile, and is surrounded by a peripheral wall portion, an end wall portion, a peripheral wall portion and an end wall portion.
- the peripheral wall portion of the case has an axial direction with the vehicle width direction of the car as the axial direction, the vehicle width direction outward as the axial direction outward, and the vehicle width direction inward as the axial inward direction.
- the end wall portion of the case is provided on the axially outer end of the peripheral wall portion, and the case can be inserted from the axially outer side into the tire house of the automobile when the load motor for chassis dynamo device is installed.
- the hollow part of is The brake disc and the brake caliper of the car can be inserted into the part, and the rotor can be connected to the driving wheel connecting part of the car and the rotor connecting part and the rotor connecting part connected to the driving wheel connecting part
- a rotor peripheral wall extending radially outward at an axially outward position, and a rotor peripheral wall extending axially inward from a connecting portion between the radially outer end of the rotor frame and the radially outer end of the rotor frame.
- a magnet fixed to the rotor peripheral wall portion, and a brake caliper is inserted into a space radially inward of the rotor peripheral wall portion in a state where the rotor connecting portion is connected to the drive wheel connecting portion Do.
- the brake caliper since the brake caliper is inserted into the radially inward space of the rotor circumferential wall in a state where the rotor coupling portion is coupled to the drive wheel coupling portion, the axial distance between the rotor frame and the brake caliper The axial distance from the rotor connection to the end wall of the case can also be shortened. Accordingly, in the state where the rotor connecting portion is connected to the drive wheel connecting portion of the vehicle, the end wall portion of the case can be prevented from protruding largely outward of the tire house of the vehicle.
- the rotor coupling portion is integrally provided with the rotor frame, and the rotor frame extends radially outwardly offset axially outward so as to bypass the brake caliper from the rotor coupling portion, or
- a shaft member separate from the rotor frame is provided on the rotor, and the shaft member has a rotor connecting portion axially inward, and the rotor frame is connected to the shaft member at its radially inner end.
- a torque sensor be provided on the rotor frame.
- the load motor for the chassis dynamo apparatus incorporates a torque sensor for detecting the torque applied to the shaft, and the torque sensor does not protrude outward in the vehicle width direction. Detection can be further suppressed.
- a load motor for chassis dynamo device (hereinafter abbreviated as load motor) 1 will be described with reference to FIGS. 1 and 2.
- the load motor 1 is provided in a chassis dynamo apparatus that performs a performance test of a vehicle, and can be attached to a drive wheel connection 8 provided at an axle end of the vehicle.
- the drive wheel connecting portion 8 is a portion including the brake disc 8a, a wheel hub and the like although it differs depending on the structure of the vehicle suspension system of the automobile.
- the load motor 1 includes a case 2, a stator 3 and a rotor 4.
- the radial direction is r, and the outside and the inside are o and i, respectively.
- the vehicle width direction of the automobile is taken as the axial direction x, the outer side in the vehicle width direction as the outer direction o of the axial direction x, and the inner side in the vehicle width direction as the inner direction i in the axial direction x.
- the case 2 has a peripheral wall 5, an end wall 6, and a hollow portion 7 surrounded by the peripheral wall 5 and the end wall 6.
- the peripheral wall portion 5 extends in the axial direction x and can be, for example, cylindrical or the like.
- the end wall 6 is provided at the outer end of the circumferential wall 5 in the axial direction x. The details of the end wall 6 will be described later.
- the stator 3 is fixed to the inner surface of the peripheral wall 5 of the case 2.
- a coil is wound around the stator 3 so that power can be supplied from the chassis dynamo device.
- the rotor 4 is housed inside the hollow portion 7 of the case 2 and provided rotatably inward i of the stator 3 in the radial direction r.
- the rotor 4 is also connectable to a drive wheel connection 8 of the motor vehicle.
- the case 2 can be inserted into the tire house from the outside o in the axial direction x when installing the load motor 1 as described later, and at the time of insertion, inside the hollow portion 7 to the drive wheel connecting portion 8 of the automobile.
- the included brake disc 8a and the brake caliper 9 are inserted.
- the rotor 4 includes a rotor connecting portion 10, a rotor frame 11, a rotor peripheral wall portion 12, and a magnet 13.
- the rotor connecting portion 10 is a portion responsible for connecting to the drive wheel connecting portion 8 of the vehicle.
- a cylindrical cylindrical shaft 10 a is fixed to the rotor connecting portion 10 at the inward end in the radial direction r.
- the cylindrical shaft 10 a extends outward from the inward end of the rotor connecting portion 10 in the axial direction x.
- the rotor connecting portion 10 is provided with a plurality of first insertion holes 14 penetrating in the axial direction x.
- the first insertion holes 14 enable insertion of fasteners such as bolts and are arranged concentrically at predetermined intervals.
- the first insertion holes 14 can face the drive wheel connecting portion 8 in a one-to-one relationship with the plurality of screw holes 15 which are opened through in the vehicle width direction. Furthermore, the hole diameter of the first insertion hole 14 is not constant, and the hole diameter o in the axial direction x is larger than the hole diameter in the inner direction i. The largest hole diameter enables the insertion of a fastening tool for connecting the rotor connection 10 to the drive wheel connection 8 using a fastener such as a bolt. The smallest hole diameter allows for the insertion of parts other than the head of the fastener such as bolts. And, in the first embodiment, the rotor connecting portion 10 is provided integrally with the rotor frame 11.
- the rotor frame 11 extends outward in the radial direction r at an outer position in the axial direction x than the brake caliper 9 in a state where the rotor connecting portion 10 is connected to the drive wheel connecting portion 8.
- the rotor frame 11 is offset outward in the axial direction x and extends outward in the radial direction r so as to bypass the brake caliper 9 from the rotor connection portion 10.
- the rotor frame 11 is separate from the detour 11a that detours the brake caliper 9 from the rotor connecting portion 10 and offsets outward in the axial direction x, and the detour 11a, and the radial direction r And an annular upright portion 11b extending straight outward o.
- the offset of the bypass portion 11 a causes the rotor frame 11 to be out of contact with the brake caliper 9 and not to interfere with each other. Therefore, when installing the load motor 1, it is not necessary to remove the brake caliper 9 from the vehicle body.
- the upright portion 11b is disposed at an interval in the radial direction r with respect to the bypass portion 11a, and the torque sensor 16 is provided between the bypass portion 11a and the upright portion 11b.
- the torque sensor 16 is a sensor that measures the torque applied to the shaft, and can adopt, for example, a non-contact type that detects the torque in a non-contact manner using the magnetostriction effect. In this case, as shown in FIG.
- the torque sensor 16 can be provided with the transmitter 17 on the side facing the end wall 6.
- the transmitter 17 may comprise, for example, a strain gauge, a converter for converting the output signal of the strain gauge into a voltage, and an antenna for transmitting the resulting voltage signal.
- the strain gauge can be counterbored at a predetermined interval on the side facing the end wall 6 in the torque sensor 16 and attached to the formed counterbore. Also, the strain gauge can be similarly provided to a portion of the upright portion 11b opposite to the side opposite to the end wall 6 as well.
- the antenna can be provided on the opposite side of the torque sensor 16 to the end wall 6.
- the receiver 18 that receives the transmission signal from the antenna can be provided on the inward end surface of the end wall 6 facing the transmitter 17 in the axial direction x.
- the receiver 18 can adopt a loop antenna system, a pickup system or the like.
- the torque sensor 16 does not contact the bypass portion 11 a and the upright portion 11 b because the receiver 18 of any type protrudes inward in the axial direction x from the inward end surface in the axial direction x of the end wall 6. It is provided on the inward portion in the axial direction x of the bypass portion 11a and the upright portion 11b.
- the receiver 18 can be connected via an electrical cable 19 to an evaluation unit 20 of the chassis dynamo arrangement, as shown in FIG. By inputting the signal received by the receiver 18 to the evaluation unit 20, it becomes possible to analyze torque etc.
- the rotor peripheral wall portion 12 is connected to the outer end of the rotor frame 11 in the radial direction r, and extends inward in the axial direction x from a connecting portion 11 c with the outer end of the rotor frame 11 in the radial direction r.
- the rotor peripheral wall portion 12 is connected to the outer end of the upright portion 11b of the rotor frame 11 in the radial direction r, and has a cylindrical shape extending inward in the axial direction x from the connecting portion 11c. .
- the brake caliper 9 is inserted into the space 7 a inward i in the radial direction r of the rotor peripheral wall 12 in the hollow portion 7.
- the distance in the axial direction x between the rotor frame 11 and the brake caliper 9 can be shortened, and the distance in the axial direction x from the rotor connecting portion 10 to the end wall 6 of the case 2 can also be shortened. Accordingly, in the state where the rotor connecting portion 10 is connected to the drive wheel connecting portion 8 of the automobile, the end wall 6 of the case 2 can be prevented from protruding largely outward of the tire house of the automobile.
- the position of the outer end 12a of the rotor peripheral wall 12 in the axial direction x is the closest to the inward end of the axial direction x of the end wall 6 in the axial direction x of the end wall 6. It is not in contact with the inner end face.
- the outer end 12a is bent outward in the radial direction r.
- the outer end position in the radial direction r at the outer end 12a is in a range in which the outer end 12a is not in contact with the stator 3.
- a plurality of magnets 13 are provided at predetermined intervals in the circumferential direction of the rotor peripheral wall portion 12, and the outer end surface of each magnet 13 in the radial direction r and the inner end surface of the stator 3 in the radial direction r A predetermined gap g is provided between them.
- the outer end position of the outer end 12a in the radial direction r is a range in which the gap g can be secured. Ru.
- the outer end 12a can be used as positioning when fixing the magnet 13, and by fixing the fixing member 21 to the inner end 12b of the rotor peripheral wall 12 using the bolt 22, The outer end 12 a can sandwich the magnet 13 with the fixing member 21.
- the first cover 23 is attached to the inward end in the axial direction x of the peripheral wall portion 5 of the case 2.
- the attachment of the first cover 23 can suppress, for example, the entry of foreign matter or the like into the gap g between the stator 3 and the magnet 13 of the rotor 4.
- the first cover 23 can be a ring-shaped member extending inward in the radial direction r from the peripheral wall portion 5.
- the inward end position of the first cover 23 in the radial direction r is in the range where it does not contact the brake caliper 9.
- the first cover 23 is attached to the inward end surface of the peripheral wall portion 5 in the axial direction x by screwing a bolt 24.
- a plurality of screw holes which allow screwing of the bolts 24 are concentrically formed at predetermined intervals on the inward end surface of the peripheral wall 5 in the axial direction x.
- an insertion hole is formed concentrically in the axial direction x at a position where it can face the screw hole of the peripheral wall portion 5. The position of the inward end 12 b in the axial direction x of the rotor peripheral wall 12 is not in contact with the first cover 23 up to the inward end in the axial direction x of the case 2.
- the end wall 6 is formed of the rotation support 25 and the second cover 26.
- the rotation support portion 25 is located at the central portion in the radial direction r of the end wall portion 6 and from the central portion of the ring 27 disposed at the outer end in the axial direction x and the inward end face in the axial direction x of the ring 27 And a fixed shaft 28 extending inward in the axial direction x.
- a first counterbore 29 is formed on the outer peripheral end face located outward in the axial direction x. In the first counterbore portion 29, a plurality of screw holes penetrating in the axial direction x are concentrically opened at predetermined intervals.
- a second insertion hole 30 penetrates in the axial direction x at a position that can face the first insertion hole 14 formed in the rotor connecting portion 10. It is established concentrically.
- the second insertion hole 30 is capable of inserting a fixing tool for connecting the rotor connecting portion 10 to the drive shaft connecting portion 8 using a fixing tool such as a bolt. Therefore, the hole diameter of the second insertion hole 30 is made equal to the maximum hole diameter of the first insertion hole 14. Further, the second insertion holes 30 face the first insertion holes 14 in a one-to-one relationship.
- the second cover 26 is also a ring-shaped member, and is disposed outward of the ring 27 in the radial direction r.
- a second counterbore 31 is formed at an inner end edge of the second cover 26 positioned inward in the axial direction x at the inward end in the radial direction r of the second cover 26.
- the second counterbore 31 is polymerizable to the first counterbore 29 of the ring 27. Further, in the second counterbore portion 31, a plurality of insertion holes which can face the screw holes formed in the first counterbore portion 29 are concentrically opened.
- a plurality of insertion holes are formed concentrically at predetermined intervals through the axial direction x at the outer end edge portion 26a of the second cover 26 in the radial direction r.
- a plurality of screw holes are concentrically opened at the outer end in the axial direction x of the peripheral wall 5 corresponding to the insertion holes formed in the outer end edge 26a.
- the second cover 26 superposes the second counterbore 31 on the first counterbore 29 of the ring 27 from the outer side in the axial direction x, and the outer end edge 26a in the axial direction of the peripheral wall 5 It can be fixed to the peripheral wall 5 together with the ring 27 by polymerizing on the outer end face of x, inserting the bolts 32, 33 into the insertion holes and screwing them into the screw holes. Thus, the end wall 6 is formed.
- the rotor 4 is rotatably supported by the case 2 on the cylindrical shaft 10 a via the bearing 34 attached to the outer periphery of the fixed shaft 28.
- the bearing 34 is of the outer ring rotating type, but may be of the inner ring rotating type.
- the ring 27 forming the end wall 6 has a ring-shaped third cover 35 and a circular shape that covers the second insertion hole 30 and the central portion from the outer side o in the axial direction x.
- a cap 36 is attached.
- the third cover 35 is fixed to the outer end face of the ring 27 in the axial direction x by a bolt 37 and the circular cap 36 by a screw 38.
- the load motor 1 can be connected to a drive wheel connecting portion 8 to which a wheel 40 corresponding to a drive wheel is connected in the performance test of the automobile 39, as shown in FIG.
- the drive system of the car 39 is a front wheel drive system
- the connection to the drive wheel connection section 8 is two front wheels, if it is a rear wheel system, two rear wheels, if it is a four wheel system, four wheel drive wheel connection parts Can be linked to eight.
- the wheel 40 of the automobile 39 is removed together with the wheel 42 to which the tire 41 is attached, and the load motor 1 is inserted into the tire house 43 of the automobile 39 from the outside o in the axial direction x.
- the end wall 6 is, for example, the outer end of the tire house 43 in the axial direction x It can also be arranged on the same plane. Therefore, it is suppressed that the various sensors provided in the motor vehicle 39 misdetect the load motor 1 as an obstacle, and the malfunction of the motor vehicle 39 based on the erroneous detection of a sensor can be suppressed. Reliable performance test of the automobile 39 is possible.
- the accommodation of the load motor 1 inside the tire house 43 is not only intended that the peripheral wall portion 5 and the end wall portion 6 of the load motor 1 completely fit within the tire house 43. As long as the sensor does not erroneously detect the load motor 1 as an obstacle, it implies that the peripheral wall 5 and the end wall 6 project outward from the inside of the tire house 43 in the axial direction x.
- the load motor 1 of the first embodiment since the torque sensor 16 is provided on the rotor frame 11, the load motor 1 incorporates the torque sensor 16, and the torque sensor 16 protrudes outward in the vehicle width direction. do not do. For this reason, the misdetection by the various sensors provided in the motor vehicle 39 can be suppressed more.
- the torque sensor 16 does not have to be provided on the rotor frame 11 as long as false detection by various sensors provided on the automobile 39 can be suppressed.
- the measuring device for measuring the torque can also be provided separately from the load motor 1.
- the third cover 35 is removed from the end wall 6 in advance.
- the plurality of second insertion holes 30 opened in the end wall portion 6 have a 1: 1 relationship with the plurality of first insertion holes 14 opened in the rotor connecting portion 10 shown in FIG. Face up. Therefore, the second insertion hole 30 can insert a wrench or a driver as a bolt and a tool for fixing the bolt into the hollow portion 7 of the case 2. Then, a bolt is inserted into the first insertion hole 14 using a wrench or a driver, and screwed into the screw hole 15 of the brake disc 8a to fix the rotor connecting portion 10 to the drive wheel connecting portion 8 including the brake disc 8a. be able to.
- the drive wheel connecting portion 8 connected to the rotor connecting portion 10 is a wheel hub
- a plurality of bolts are concentrically planted on the wheel hub at predetermined intervals, and the bolts project outward in the vehicle width direction
- the bolt is inserted into the first insertion hole 14 formed in the rotor connecting portion 10 from the inward direction i in the axial direction x, and is protruded into the hollow portion 7 of the case 2.
- a nut capable of being screwed onto the bolt and a wrench which is a tool for fixing the nut are inserted into the second insertion hole 30 and inserted into the hollow portion 7 of the case 2. Then, the rotor connecting portion 10 can be fixed to the drive wheel connecting portion 8 by screwing the nut onto the bolt using a wrench.
- a pedestal 44 is provided at the lower end portion of the peripheral wall portion 5 of the case 2.
- the pedestal 44 is disposed on a seating surface 45 which can be, for example, an arc-shaped curved surface along the outer peripheral surface of the peripheral wall portion 5 and an installation surface on which the automobile 39 is installed at the performance test.
- a mounting surface 46 which can be The pedestal 44 stabilizes the installation state of the load motor 1 at the time of the performance test of the automobile 39 shown in FIG.
- the pedestal 44 can be provided with a damping material on the upper surface portion of the seating surface 45 or the lower surface portion of the installation surface 46 or the like.
- these effects extend the pedestal 44 from the peripheral wall 5 so that the installation surface 46 is positioned lower than the lower end of the case 2 when the load motor 1 is installed. It can raise more by letting it go out and providing it.
- such pedestals 44 are provided one each at two positions of the outer end and the inner end in the axial direction x of the peripheral wall 5 of the case 2.
- load motor for chassis dynamo device 1a according to a second embodiment of the present invention
- load motor 1a a load motor for chassis dynamo device
- FIGS. 1 and 2 parts that are the same as the parts of the load motor 1 shown in FIGS. 1 and 2 are given the same reference numerals, and descriptions thereof will be omitted below.
- a shaft member 47 separate from the rotor frame 111 is provided on the rotor 4, and the shaft member 47 has a rotor connecting portion 101 inward in the axial direction x, and the rotor frame 111 has a radial direction r
- the inner end portion 111 a is connected to the shaft member 47.
- the shaft member 47 is a member extending in the axial direction x, and includes a cylindrical rotor frame fixing portion 47a and a cylindrical rotor frame fixing positioning portion 47b. Thread grooves are formed on the outer peripheral surface of the rotor frame fixing portion 47a from the outer end to the middle in the axial direction x.
- the inward end in the axial direction x of the rotor frame fixing portion 47a is bent outward in the radial direction r, and the outward end of the bending portion 47a 1 is bent inward i in the axial direction x
- the rotor frame fixing and positioning portion 47b is formed, and the rotor frame fixing and positioning portion 47b extends inward in the axial direction x.
- Some of the outer end face in the axial direction x at the base of the bent portion 47a 1 of the rotor frame fixing portion 47a has a conical surface 47a 2 of the flared outwardly o the radial direction r.
- a plurality of pins 48 projecting outward in the axial direction x are implanted concentrically at predetermined intervals. Further, the inward end in the axial direction x of the rotor frame fixing and positioning portion 47 b is bent outward in the radial direction r, and this bent portion is the rotor connecting portion 101.
- the rotor connecting portion 101 is provided with a plurality of insertion holes 141 penetrating in the axial direction x. The insertion holes 141 enable insertion of fasteners such as bolts and are arranged concentrically at predetermined intervals.
- the insertion holes 141 can face one to one in a plurality of screw holes (not shown) opened through in the vehicle width direction in the drive wheel connecting portion 8 such as the brake disc 8a.
- the shaft member 47 is connected to the drive wheel connection portion 8 by inserting a fastener such as a bolt from the insertion hole 141 of the rotor connection portion 101 and screwing it into the screw hole of the drive wheel connection portion 8.
- the rotor frame 111 extends outward in the radial direction r at an outer position in the axial direction x than the brake caliper 9 in a state where the rotor connecting portion 101 is connected to the drive wheel connecting portion 8.
- the rotor frame 111 is separate from the first upright portion 111a extending outward in the radial direction r and the first upright portion 111a, and extends straight outward in the radial direction r. And 2 upright portions 111b.
- Inner end 111a 1 of the radial direction r of the first upright portion 111a is adapted to bend outwardly o the axial direction x, and has a protruding portion 111a 2 which projects inwardly i in the radial direction r .
- the inner end portion 111a 1, the inner portion of the axial x, insertion of the pin 48 is a plurality of pin holes 48a capable is provided.
- both inner peripheral end faces of the inner and outer ends in the axial direction x of the projecting portion 111a 2 are conical surfaces spreading out in the outer direction o of the radial direction r.
- the outer end portion 111a 3 in the radial direction r of the first upright portion 111a is bent inward in the axial direction x so as not to contact the brake caliper 9, it has a flange-like.
- the intermediate portion between the inner end portion 111a 1 and the outer end portion 111a 2 of the first upright portion 111a, a cylindrical cylinder shaft 111d is protruded outwardly o the axial direction x.
- the cylindrical shaft 111d is integrally formed with the first upright portion 111a.
- the first upright portion 111a and the second upright portion 111b are connected to each other via a torque sensor 16 as in the load motor 1 of the first embodiment shown in FIG. That is, the inner end in the radial direction r of the second upright portion 111b is a similar flange-like and the outer end portion 111a 3 of the first upright portion 111a, outer end of the first upright portion 111a A plurality of screw holes penetrating in the axial direction x are formed in each of the inner end portions of the 111a 3 and the second upright portion 111b.
- the axial direction x of the inner end of the outer end 111a 3 and the second upright portion 111b of the first upright portion 111a of the inner end surface in the axial direction x of the inner and outer end portions of the radial direction r of the torque sensor 16 The first upright portion 111 a and the second upright portion 111 b are engaged with the torque sensor 16 by screwing the bolt 50 into the screw hole from the outer side o of the torque sensor 16 in the axial direction x. It is connected.
- the rotor peripheral wall portion 12 is connected to an outer end of the second upright portion 111b of the rotor frame 111 in the radial direction r, and an axial direction from a connecting portion 111c with the outer end of the second upright portion 111b in the radial direction r. It extends inward i of x.
- the outer peripheral surface of the inward end of the axial direction x of the nut 49 is also a conical surface of which the outer edge extends outward in the axial direction x, and the axial direction of the inward end surface of the axial direction x of the nut 49 and the projecting portion 111a 2 Closely contact with the outer end face of x outward o.
- the rotor frame 111 is connected to the shaft member 47 at the inward end portion 111 a 1 , and the rotor 4 can rotate together with the drive wheel connecting portion 8.
- the brake caliper 9 is inserted into the space 7 a inward i in the radial direction r of the rotor peripheral wall portion 12 in the hollow portion 7. Therefore, the distance in the axial direction x from the rotor connection portion 101 to the end wall portion 6 of the case 2 can be shortened, and the end of the case 2 is connected with the rotor connection portion 101 connected to the drive wheel connection portion 8 of the vehicle. It is possible to prevent the wall 6 from protruding largely outward of the tire house 43 of the automobile 39.
- the second cover 26 forming a part of the end wall 6 of the case 2 is formed of an outer cover 26b forming an outer peripheral part and an inner cover 26c located inside the outer cover 26b. And both are connected on the same plane.
- the connection method between the outer cover portion 26b and the inner cover portion 26c is the same as the connection method between the second cover 26 and the ring 27 in the load motor 1 of the first embodiment shown in FIG. This is due to the polymerization of the second counterbore portion and the screwing of the bolt 51 at the polymerization portion.
- the inward end of the inner cover portion 26 c in the radial direction r is bent outward in the axial direction x to form a body portion 25 a of the rotation support portion 25.
- the body 25a has a cylindrical shape, and an inner ring rotation type bearing 52 is attached to the inner surface of the body 25a.
- the cylindrical shaft 111d of the rotor frame 111 protrudes inward in the radial direction r of the body 25a, and a bearing 52 is interposed between the cylindrical shaft 111d and the body 25a.
- the bearing 52 is larger in diameter than the bearing 34 of the first embodiment, and hence the support rigidity of the rotor 2 is improved as compared with the first embodiment.
- the space between the inward end portion 111a of the rotor frame 111 and the cylindrical shaft 111d is hollow, and the rotation sensor 53 is accommodated in the space 25b.
- the rotation sensor 53 includes a magnetic pickup 53 a attached by a screw 56 to a mounting bracket 55 fixed by an screw 54 to an outer end face in the axial direction x of the body 25 a, and an inner side of a first upright portion 111 a of the rotor frame 111.
- the sensor gear 53 b is externally fitted and fixed to the end 111 a 1 .
- the inside of the rotation support 25 including the rotation sensor 53 is covered from outside in the axial direction x by a fourth cover 57 attached to the mounting bracket 55 by a screw 58.
- the fourth cover 57 is ring-shaped, a sub-cover 59, which is removed when the nut 49 is removed, is screwed to the central portion of the fourth cover 57.
- the overhang of the rotational support 25 of the load motor 1a is larger than that of the rotational support 25 of the load motor 1 according to the first embodiment shown in FIG.
- the wheel 40 When the wheel 40 is operated to move the wheel 40 to the left and right, the wheel 40 can be smaller than the protrusion that pops out of the tire house 43, and false detection by various sensors provided in the automobile 39 can be suppressed.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Braking Arrangements (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims (4)
- 自動車の性能試験を行うシャシダイナモ装置に設けられるシャシダイナモ装置用負荷モータであって、周壁部と端壁部と周壁部及び端壁部により囲まれた中空部とを有するケースと、ケースの周壁部内面に固定されたステータと、ケースの中空部内部に収納され、ステータの径方向内方に回転自在に設けられ、且つ自動車の駆動輪連結部に連結可能なロータとを備えるものにおいて、
自動車の車幅方向を軸方向、車幅方向外方を軸方向外方、車幅方向内方を軸方向内方として、ケースの周壁部は軸方向に延び、ケースの端壁部は周壁部の軸方向外方端に設けられ、ケースは、シャシダイナモ装置用負荷モータの設置時に、自動車のタイヤハウスに軸方向外方から挿入可能であり、ケースの中空部は、内部に自動車のブレーキディスクとブレーキキャリパとを挿入可能であり、
ロータは、自動車の駆動輪連結部に連結可能なロータ連結部と、ロータ連結部を駆動輪連結部に連結した状態でブレーキキャリパよりも軸方向外方位置で径方向外方に延びるロータフレームと、ロータフレームの径方向外方端に接続され、ロータフレームの径方向外方端との接続部から軸方向内方に延びるロータ周壁部と、ロータ周壁部に固定された磁石とを備え、ロータ連結部を駆動輪連結部に連結した状態でロータ周壁部の径方向内方の空間内にブレーキキャリパが挿入される
ことを特徴とするシャシダイナモ装置用負荷モータ。 - ロータ連結部はロータフレームと一体に設けられ、ロータフレームは、ロータ連結部からブレーキキャリパを迂回するように軸方向外方にオフセットして径方向外方に延びることを特徴とする請求項1記載のシャシダイナモ装置用負荷モータ。
- ロータフレームと別体の軸部材がロータに設けられ、軸部材は軸方向内方にロータ連結部を有し、ロータフレームはその径方向内方端部において軸部材に連結されることを特徴とする請求項1記載のシャシダイナモ装置用負荷モータ。
- ロータフレームにトルクセンサが設けられていることを特徴とする請求項2又は3記載のシャシダイナモ装置用負荷モータ。
Priority Applications (5)
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JP2019541636A JP7048623B2 (ja) | 2017-09-15 | 2018-05-10 | シャシダイナモ装置用負荷モータ |
US16/641,051 US11215533B2 (en) | 2017-09-15 | 2018-05-10 | Load motor for chassis dynamometer apparatus |
CN201880057013.9A CN111094928B (zh) | 2017-09-15 | 2018-05-10 | 底盘测功装置用负载马达 |
KR1020207008786A KR102457734B1 (ko) | 2017-09-15 | 2018-05-10 | 섀시 다이너모 장치용 부하 모터 |
EP18855613.8A EP3683562B1 (en) | 2017-09-15 | 2018-05-10 | Load motor for chassis dynamometer apparatus |
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JP2017-178352 | 2017-09-15 | ||
JP2017178352 | 2017-09-15 |
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US (1) | US11215533B2 (ja) |
EP (1) | EP3683562B1 (ja) |
JP (1) | JP7048623B2 (ja) |
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JP2021032613A (ja) * | 2019-08-20 | 2021-03-01 | 株式会社小野測器 | 自動車試験装置 |
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CN112525525B (zh) * | 2020-11-27 | 2022-03-11 | 苏州英特模汽车科技有限公司 | 一种同轴式电驱动桥齿轮箱的测试装置 |
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- 2018-05-10 KR KR1020207008786A patent/KR102457734B1/ko active IP Right Grant
- 2018-05-10 CN CN201880057013.9A patent/CN111094928B/zh active Active
- 2018-05-10 US US16/641,051 patent/US11215533B2/en active Active
- 2018-05-10 JP JP2019541636A patent/JP7048623B2/ja active Active
- 2018-05-10 EP EP18855613.8A patent/EP3683562B1/en active Active
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US11215533B2 (en) | 2022-01-04 |
KR20200054217A (ko) | 2020-05-19 |
EP3683562A4 (en) | 2021-06-09 |
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JPWO2019053940A1 (ja) | 2020-10-29 |
CN111094928A (zh) | 2020-05-01 |
US20210048372A1 (en) | 2021-02-18 |
KR102457734B1 (ko) | 2022-10-21 |
EP3683562A1 (en) | 2020-07-22 |
EP3683562B1 (en) | 2023-10-04 |
CN111094928B (zh) | 2022-02-11 |
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