CN101618662A - Axle-supporting device - Google Patents

Abstract

A sensor device (4) is provided with a resolver having a stator (21) installed on a suspension member (1) and a rotor (31) provided on an axle member (2). The axle member (2) is constituted of a drive shaft (11) connected to a power transmission device and a hub shaft (12) having a wheel installation portion (13) and fixed to the drive shaft (11). The stator (21) is press-fitted into a wheel-side end portion in the axial direction, of a knuckle (1a) of the suspension member (1). The rotor (31) is press-fitted into the hub shaft (12) of the axle member (2). The stator (21) and the rotor (31) are radially opposed to each other. A rolling bearing (3) has two rows, or left and right rows, of rolling bodies (7). An outer ring (5) is made in one piece having two rows of raceway grooves. An inner ring (6) is a divided type where each division has a row of a raceway groove.

Description

Axle-supporting device

The application is that international application no is that PCT/JP2004/003148, international filing date are that March 10, China national application number in 2004 are dividing an application of 200480006486.4 application for a patent for invention.

Technical field

The present invention relates to a kind of axle-supporting device, described axle-supporting device is used to support the axle of automotive wheel, and the sensor device that becomes one with it and the various information of automobile are detected is installed on described axle-supporting device.

Background technology

In rolling stock and automobile, to axletree or will rotate when the rotating shaft that axletree transmits is supported, for rotations such as the rotating speed of axle, angle of rotation are detected, used the axle-supporting device that has rotation detecting device, it has antifriction-bearing box, be set on the antifriction-bearing box sensor device and as the pulse ring (, opening flat 1-156463 number in fact) of detected portion referring to the open communique of Japanese Utility Model.

In the above-mentioned axle-supporting device that has a rotation detecting device, though people wish to improve resolution capability of rotating detection and the downsizing of realizing detecting device very much, but, in the axle-supporting device that uses pulse ring, since resolution capability depend on pulse ring with number of magnetic poles, so, must increase its number of magnetic poles in order to improve resolution capability.But, if do like this, will cause flux density to descend, the absolute value of the output signal of sensor device diminishes, and produces the problem that can not measure exactly rotating, so the raising of resolution capability is limited.

Order of the present invention is to being, a kind of axle-supporting device that can detect rotation with higher resolution capability is provided.

Summary of the invention

Axle-supporting device of the present invention has: be installed in the sprung parts on the car body; Be used to install the axletree parts of wheel; Antifriction-bearing box, this antifriction-bearing box have the outer shroud that is installed on the sprung parts, be installed in the interior ring on the axletree parts and be configured in rolling body between two orbit rings; Sensor device, it is characterized in that: sensor device has the resolving device that is made of stator and rotor, stator is arranged on in sprung parts and the antifriction-bearing box outer shroud any, rotor is arranged in axletree parts and the antifriction-bearing box on any in the ring, sensor device further has treatment circuit, be provided with in this treatment circuit: rotate test section, this rotation test section is according to the variation of a. g. amount between described stator and the rotor is obtained rotational angle or velocity of rotation as the signal of variation in voltage amount output; Ground connection load operational part stores the arithmetic expression that is used for obtaining according to described variation in voltage amount ground connection load in this ground connection load operational part.

Sprung parts and antifriction-bearing box outer shroud are the parts that are fixed on the car body, and ring is the parts that rotate with respect to car body in axletree parts and the antifriction-bearing box.

Stator is arranged on the sprung parts, and rotor is arranged on the axletree parts.

In this case, stator adopts for example ring-type, and is pressed in the steering swivel of sprung parts on week.The interior Zhou Tongchang of steering swivel is formed cylindric, and can unreally be applied to the processing that is pressed into stator.Certainly, also can on the interior week of steering swivel, implement to be used to be pressed into the processing of stator.Rotor adopts ring-type, and is pressed on the periphery of axletree parts, perhaps implements detected processing of rotor on the axletree parts.The axletree parts are formed and for example have the cylindric or flanged (FLGD) cylindric of ladder, when rotor is pressed into, utilize the end difference of axletree parts or flange portion to position.

According to stator being arranged on the sprung parts and rotor being arranged on the structure of the axle-supporting device on the axletree parts, under state from sine waveform voltage to stator that imported, if sprung parts and axletree parts are relatively rotated, so, along with continuous or discontinuous variation of a. g. amount between stator and rotor detected, on stator, just can obtain voltage corresponding to pivot angle, thus, can detect with non-contacting form and with the rotary state of higher precision the axletree parts.In addition, owing to directly stator is installed on the sprung parts that is fixed on the car body, so, compare with the situation that stator is installed on the outer shroud that is installed on the sprung parts, even outer shroud produces some slips with respect to sprung parts, stator does not move with respect to car body yet, therefore, can eliminate the rotation that the slip because of stator causes and detect error, and the distribution that can prevent from reliably to be connected on the stator fractures.

Stator is made of unshakable in one's determination and stator winding, and the internal diameter of said stator or side are formed for example ring-type of convex-concave shape, and the said stator coiling is formed by the coil that is wrapped in successively on the male member.

It is not the structure of the parts magnetic substance of one that rotor can adopt with the axletree parts, and to make the axletree parts of itself and magnetic material system be the structure of one but also can adopt, and, the needed face of axletree parts is processed into parts as rotor that is.The former is because can use parts of the prior art as the axletree parts, so be suitable for situation that the axletree parts are difficult to process, and the latter is not owing to need to be used as the new parts of rotor, only increase the operation that is pressed into stator to sprung parts, so, have the advantage that can reduce assembling number in man-hour.

The axletree parts are made of axle drive shaft and center shaft, described axle drive shaft is connected on the torque transfer, described center shaft has the wheel installation portion and is fixed on the axle drive shaft, and stator is arranged on axial wheel one side of sprung parts, and rotor is arranged on the center shaft of axletree parts; In addition, also have a kind of mode to be, although the axletree parts also are made of axle drive shaft and center shaft, described axle drive shaft is connected on the torque transfer, described center shaft has the wheel installation portion and is fixed on the axle drive shaft, stator is arranged on axial car body one side of sprung parts, and rotor is arranged on the axle drive shaft of axletree parts.

In addition, stator and rotor can be configured in the axial direction in opposite directions, also can be configured to stator and rotor diametrically in opposite directions.If make the configuration in opposite directions diametrically of stator and rotor, so, stator makes its sensor surface under the state of radial direction inboard, is pressed into and is fixed on the interior week of sprung parts, and the outer surface of rotor is formed detected.If make the configuration in opposite directions in the axial direction of stator and rotor, so, stator makes its sensor surface under the state in the axial outside, is pressed into and is fixed on the interior week of sprung parts, and the medial surface of rotor is formed detected.

Detected of the rotor that disposes in opposite directions with stator diametrically, so long as the surface of staggering with complete barrel surface just can be various forms, for example, can cylindrical portion is whole to be produced eccentricly by making, perhaps on the part of the periphery of barrel surface, otch is set and obtains.For example, when the periphery of rotor or axletree parts is processed, produce with respect to the center shaft of barrel surface by the axle that makes rotary cutting tool eccentric, just can be easily and obtain the accentric barrel surface accurately.Be set at the otch on the barrel surface, it also can be a plurality of can being one, and along the circumferential direction unnecessary be equally spaced.If want such otch barrel surface and axletree parts are formed as one, so, for example the same after having formed the axletree parts with prior art, on axletree parts periphery, form the otch that extends vertically by the method same, just can obtain easily and accurately with for example processing key.Otch is not limited to the groove shape, also can be the otch that for example forms the par on the part of circumference.

Detected of the rotor that disposes in opposite directions with stator in the axial direction, for axially, so long as fully from side that the tabular surface at right angle staggers, just can be various forms, for example, detected recited above can obtain by following mode: side integral body is tilted from the surface at right angle, perhaps side integral body is formed waveform shape, perhaps that the whole formation in side is round table-like, perhaps in the part of side or one or more otch are set on the whole, perhaps in the part of side or one or more convex-concaves are set on the whole.

In Axle bearing device of the present invention, can in the vehicle body-side end portion of axletree parts, free joint be set, and with as rotor detected of the periphery of the outer shroud of free joint.

In this case, stator is made of unshakable in one's determination and stator winding, for example, the internal diameter of above-mentioned iron core is formed the ring-type of wooden comb dentation, said stator coiling is formed by the coil on the part that is wrapped in all teeth unshakable in one's determination successively, and stator is pressed in the steering swivel of sprung parts on week its sensor surface under the state that directly makes progress.

Free joint is that axle drive shaft and torque transfer are carried out the bonded assembly parts, as free joint, for example, employing is configured in Rzeppa universal joint between outer shroud and the interior ring with ball, above-mentioned outer shroud and interior ring are formed on to have on the concentric sphere, and this outer shroud is set on the end of car body one side of axletree parts.

Be used as the structure of detected axle-supporting device of rotor according to the periphery of the outer shroud of free joint, promptly, be used for ABS (promptly using this axle-supporting device to detect, during slip control system) rotation, even detected of the rotor that disposes in opposite directions is the outer shroud outer surface of above-mentioned free joint in the axial direction, also can obtain necessity and abundant high precision, and by it can be reduced manufacturing cost as detected of rotor.And, utilize because of being subjected to causing the distortion that the outer shroud of free joint produces from the power of ball, and do not process and the outer surface of the outer shroud of free joint is used as rotor, do not need new parts thus as rotor, only increase the operation that together stator is pressed on the sprung parts, so, can suppress to follow the cost that uses resolving device to rise.

In axle-supporting device of the present invention, can on the axletree parts, form flange portion, this flange portion is provided with the bolt that is used to install wheel, and with the flange portion of axletree parts as rotor.

In this case, stator is made of unshakable in one's determination and stator winding, the internal diameter of above-mentioned iron core or side are formed for example ring-type of wooden comb dentation, the said stator coiling is formed by the coil on the part that is wrapped in all teeth unshakable in one's determination successively, and stator is fixed on the steering swivel of sprung parts under the state that the detected face that makes its sensor surface and flange portion disposes in opposite directions.The part that stator is fixed is selected from this three of axial end of the periphery of interior week of steering swivel, steering swivel, steering swivel rightly.

The flange portion of axletree parts is owing to be non-circular, so can be used as rotor, for example, the end face that wheel can be installed the usefulness bolt is as detected of rotor.In addition, on the side of flange portion, usually be provided with wheel is installed the heavy section of reinforcing with bolt, and in order to realize reinforcing and these two purposes of lightweight, this heavy section has been made from axially being seen as non-circular heavy section (promptly, being heavy wall near the bolt, is thin-walled away from the position of bolt), also can be with the side face of this heavy section detected as rotor.

According to the flange portion of axletree parts structure as the axle-supporting device of rotor, promptly, utilization has been made into non-circular method with the flange portion of axletree parts, and do not process and the flange portion of axletree parts is used as rotor, do not need to add in addition new parts thus as rotor, only increase the operation that together stator is pressed on the sprung parts, so, can suppress to follow the cost that uses resolving device to rise.And, when using this axle-supporting device to detect the rotation that is used for ABS, even detected of the rotor that disposes in opposite directions is the surface of the regulation of flange portion in the axial direction, also can obtain necessity and abundant high precision, and by it can be reduced manufacturing cost as detected of rotor.

Stator and rotor (the detected face of flange portion) can dispose in the axial direction in opposite directions, also can dispose in opposite directions diametrically.If make its configuration in opposite directions in the axial direction, so for example, just at the end face of wheel being installed the usefulness bolt as in detected of rotor, the sensor surface of stator is disposed in opposite directions from axial inboard and bolt end face.Because flange portion is non-circular, so, also can utilize the flange portion side outside the bolt end face and stator and rotor (side of flange portion) are disposed in the axial direction in opposite directions.In addition, if make the configuration in opposite directions diametrically of its stator and rotor, for example, the outer surface of the non-circular heavy section on the side that will be set at flange portion can make the sensor surface of stator dispose in opposite directions from radial outside and heavy section outer surface as in detected of rotor.

Axle-supporting device of the present invention can not be arranged on stator on the sprung parts yet but it is arranged on the outer shroud of antifriction-bearing box, and, rotor is not arranged on the axletree parts but it is arranged on the interior ring of antifriction-bearing box.

In this case, stator is made of unshakable in one's determination and stator winding, the internal diameter of above-mentioned iron core or side are formed for example ring-type of convex-concave shape, and the said stator coiling is formed by the coil that is wrapped in successively on the male member, and stator was pressed on the interior week of outer shroud.Rotor adopts ring-type, and on the periphery of encircling in being pressed into, perhaps implements detected processing of rotor on interior ring periphery or interior ring side.

According to the structure that stator and rotor is arranged on the axle-supporting device on the antifriction-bearing box, promptly, if under state from sine waveform voltage to stator that imported, sprung parts and axletree parts are relatively rotated, so, the outer shroud of antifriction-bearing box and interior ring just relatively rotate, a. g. amount between detected of stator and rotor is with continuous or discontinuous the variation, can on stator, obtain simultaneously and the pivot angle correspondent voltage, thus, can be with non-contacting form and accurately the rotary state of axletree parts is detected.And, when using this axle-supporting device to detect the rotation that is used for ABS, even diametrically in opposite directions detected of rotor of configuration for the above-mentioned simple eccentric face of cylinder or have the barrel surface of otch, perhaps detected of the rotor that disposes in opposite directions in the axial direction is the side of above-mentioned different shape, also can obtain necessity and abundant high precision, and can reduce manufacturing cost by that rotor is simple as a comparison detected.In addition, because stator and rotor all can preselected group install on the antifriction-bearing box, thus can suppress to follow the increase in the space of using stator, and the assembling of axle device can similarly be carried out easily with the situation of not using resolving device.

Stator can be set at axial wheel one side of outer shroud and axially on any in car body one side, the periphery of the interior ring that will dispose in opposite directions with stator is as detected of rotor, and another kind of situation is, although stator also can be set at axial wheel one side of outer shroud and axially on any in car body one side, on the periphery of the interior ring that disposes in opposite directions with stator, be provided with interior ring be not the parts rotor of one.The former is not owing to need to be used as in addition the new parts of rotor, only be to increase the operation that together stator is pressed on the outer shroud, so have the advantage that can reduce assembling number in man-hour, and the latter is owing to using parts of the prior art, so be suitable for internally encircling the situation that is difficult to process as interior ring.In addition, stator can also be arranged on the central portion of outer shroud, the surface of the interior ring that will dispose in opposite directions with stator is as detected of rotor; And also stator can be arranged on the central portion of outer shroud, on the periphery of the interior ring that disposes in opposite directions with stator, be provided with interior ring be not the parts rotor of one.Even in this case, the former also has the advantage that can reduce assembling number in man-hour, and the latter is suitable for internally encircling the situation that is difficult to process.

In addition, stator and rotor can be configured to diametrically in opposite directions, also can be configured in the axial direction in opposite directions.If make the configuration in opposite directions diametrically of stator and rotor, so, just at the sensor surface that makes stator under the state of radial direction inboard, stator is pressed into and fixedly on interior week of outer shroud, and detected of formation on the outer surface of rotor.If make the configuration in opposite directions in the axial direction of electronics and rotor, so, just at the sensor that makes stator under the state in the axial outside, stator is pressed into and is fixed on the interior week of outer shroud, and detected of formation on the medial surface of rotor.

With stator detected of rotor of configuration in opposite directions diametrically, so long as the surface of staggering mutually with complete barrel surface just can be various forms, for example, can barrel surface is whole to be produced eccentricly by making, perhaps on the part of the periphery of barrel surface, otch is set and obtains above-mentioned detected.For example, when the periphery of rotor or interior ring is processed, produce with respect to the center shaft of barrel surface by the axle that makes rotary cutting tool eccentric, can be easily and obtain the accentric barrel surface accurately.Be set at the otch on the barrel surface, it also can be a plurality of can being one, and along the circumferential direction unnecessary be equally spaced.If want such otch barrel surface and interior annular are become one, so, for example the same after having formed interior ring with prior art, on interior ring periphery, form the otch that extends vertically by the method same with for example processing key, just can obtain easily and accurately.Otch is not limited to the groove shape, also can for example be the otch that forms the par on the part of circumference.

Dispose detected of rotor in opposite directions with stator in the axial direction, for axially, so long as fully from side that the tabular surface at right angle staggers, just can be various forms, for example, detected recited above can obtain by following mode: side integral body is tilted from the surface at right angle, perhaps side integral body is formed waveform shape, perhaps that the whole formation in side is round table-like, perhaps in the part of side or one or more otch are set on the whole, perhaps in the part of side or one or more convex-concaves are set on the whole.

Axle-supporting device of the present invention also can be arranged on rotor on the axletree parts, and stator is arranged on the outer shroud of antifriction-bearing box.

In this case, stator is made of unshakable in one's determination and stator winding, and the internal diameter of above-mentioned iron core or side are formed the ring-type of convex-concave shape, and the said stator coiling is formed by the coil that is wrapped in successively on the male member, and stator was pressed on the interior week of outer shroud.Rotor adopts ring-type, and on the periphery of encircling in being pressed into, perhaps implements detected processing of rotor in axletree parts periphery.

According to the axle-supporting device that stator and rotor is arranged on the antifriction-bearing box, promptly, if under state from sine waveform voltage to stator that imported, sprung parts and axletree parts are relatively rotated, so, the outer shroud and the interior ring that have been fixed on the antifriction-bearing box on the suspension just relatively rotate, a. g. amount between detected of stator and rotor is with continuous or discontinuous the variation, can on stator, obtain simultaneously and the pivot angle correspondent voltage, thus, can be with non-contacting form and accurately the rotary state of axletree parts is detected.And, when using this axle-supporting device to detect the rotation that is used for ABS, even diametrically in opposite directions detected of rotor of configuration for the above-mentioned simple eccentric face of cylinder or have the barrel surface of otch, perhaps detected of the rotor that disposes in opposite directions in the axial direction is the side of above-mentioned different shape, also can obtain necessity and abundant high precision, and can reduce manufacturing cost by that rotor is simple as a comparison detected.

In addition, also stator can be arranged on the axial car body side of outer shroud, and stator be arranged between the axial rolling body of outer shroud.

In addition, stator and rotor can be arranged to diametrically in opposite directions, but also can be arranged in the axial direction in opposite directions.If make the configuration in opposite directions diametrically of stator and rotor, so, just at the sensor surface that makes stator under the state of radially inner side, stator is pressed into and is fixed on the interior week of outer shroud, and detected of formation on the outer surface of axletree parts.If make the configuration in opposite directions in the axial direction of stator and rotor, so, just at the sensor that makes stator under the state in the axial outside, stator is pressed into and is fixed on the interior week of outer shroud, rotor is pressed on the end difference that has been made into stair-stepping axletree parts, and on its side, forms detected.

In addition, the rolling bearing described in the present invention has two row rolling bodys, and outer shroud is formed has the one-piece type of two row rail grooves, and interior ring is formed the Splittable that has a row rail groove respectively.

Can utilize various types of brushless resolving devices or brushless synchro as resolving device, wherein, VR (variable reactance) shape resolving device is the most suitable.

Sensor device has the resolving device that is made of stator and rotor, stator is arranged on in sprung parts and the antifriction-bearing box outer shroud any, rotor is arranged in axletree parts and the antifriction-bearing box on any in the ring, and, form this rotor by any the face in the ring in axletree parts and the antifriction-bearing box is processed.

Change along with the velocity variations of the vehicle that travels or attitude change though put on ground connection load on each tire,, the axletree parts with respect to the location variation of car body therefore ground connection load size and change.The change in location of these axletree parts be and stator and rotor between a. g. amount corresponding, in the relation between the location variation of the ground connection load of obtaining tire in advance and axletree parts, by measure a. g. amount between stator and the rotor by resolving device, can obtain ground connection load accurately according to relational expression between ground connection load and the location variation and a. g. amount.By the tire ground connection load that obtains like this, except alternate data, can also be used for aspects such as propulsive effort control or brake-power control, and can help to improve the precision of vehicle control as the sliding ratio in the ABS control.Resolving device is owing to itself be exactly the instrument that rotation is detected, thus can understand ground connection load and rotation information, and in the such vehicle control of the ground connection load of the rotation of wheel and tire, can obtain important parameters by a sensor.

The invention provides a kind of axle-supporting device in addition, have: be installed in the sprung parts on the car body; Be used to install the axletree parts of wheel; Antifriction-bearing box, this antifriction-bearing box have the outer shroud that is installed on the sprung parts, be installed in the interior ring on the axletree parts and be configured in rolling body between two orbit rings; Sensor device, it is characterized in that: sensor device has the resolving device that is made of stator and rotor, stator is arranged on in sprung parts and the antifriction-bearing box outer shroud any, rotor is arranged in axletree parts and the antifriction-bearing box on any in the ring, and, form this rotor by any the face in the ring in axletree parts and the antifriction-bearing box is processed.

Description of drawings

Fig. 1 is the transverse sectional view of first embodiment of expression axle-supporting device of the present invention.

Fig. 2 is the transverse sectional view of second embodiment of expression axle-supporting device of the present invention.

Fig. 3 is the transverse sectional view of the 3rd embodiment of expression axle-supporting device of the present invention.

Fig. 4 is the transverse sectional view of the 4th embodiment of expression axle-supporting device of the present invention.

Fig. 5 is the transverse sectional view of the 5th embodiment of expression axle-supporting device of the present invention.

Fig. 6 is the transverse sectional view of the 6th embodiment of expression axle-supporting device of the present invention.

Fig. 7 is the transverse sectional view of the 7th embodiment of expression axle-supporting device of the present invention.

Fig. 8 is the transverse sectional view of the 8th embodiment of expression axle-supporting device of the present invention.

Fig. 9 is the transverse sectional view of the 9th embodiment of expression axle-supporting device of the present invention.

Figure 10 is the transverse sectional view of the tenth embodiment of expression axle-supporting device of the present invention.

Figure 11 is the transverse sectional view of the 11 embodiment of expression axle-supporting device of the present invention.

Figure 12 is the transverse sectional view of the 12 embodiment of expression axle-supporting device of the present invention.

Figure 13 is the transverse sectional view of the 13 embodiment of expression axle-supporting device of the present invention.

Figure 14 is the transverse sectional view of the 14 embodiment of expression axle-supporting device of the present invention.

Figure 15 is the transverse sectional view of the 15 embodiment of expression axle-supporting device of the present invention.

Figure 16 is the transverse sectional view of the 16 embodiment of expression axle-supporting device of the present invention.

Figure 17 is the transverse sectional view of the 17 embodiment of expression axle-supporting device of the present invention.

Figure 18 is the transverse sectional view of the 18 embodiment of expression axle-supporting device of the present invention.

Figure 19 is the transverse sectional view of the 19 embodiment of expression axle-supporting device of the present invention.

Figure 20 is the transverse sectional view of the 20 embodiment of expression axle-supporting device of the present invention.

Figure 21 is the transverse sectional view of the 21 embodiment of expression axle-supporting device of the present invention.

Figure 22 is the transverse sectional view of the 22 embodiment of expression axle-supporting device of the present invention.

Figure 23 is the block scheme of the treatment circuit of expression axle-supporting device of the present invention.

The specific embodiment

With reference to the accompanying drawings embodiments of the present invention are described.

In the following description, about described and be meant up and down each figure about and up and down.In addition, a left side is the inboard of vehicle, and the right side is the outside of vehicle.

Axle-supporting device in first embodiment shown in Figure 1 has: be installed in sprung parts 1 on the car body, be used to install wheel axletree parts 2, be installed in outer shroud 5 on the sprung parts 1, be installed in interior ring 6, antifriction-bearing box 3 and sensor device 4 on the axletree parts 2, its centre bearer 3 has the retainer 8 that is configured in a plurality of rolling bodys 7 between two orbit rings 5,6 and keeps these roll packers.

Antifriction-bearing box 3 is multiple row angular contact ball bearings, and two row are as the ball of rolling body 7 about disposing between outer shroud 5 and the interior ring 6, and outer shroud 5 is the one-piece type parts with two row rail grooves, and interior ring 6 is the Splittable parts that have a row rail groove respectively.Outer shroud 5 was embedded on the interior week of the steering swivel 1a that constitutes sprung parts 1, was stopped by near the end difference that is set at its right part, and prevented that by back-up ring 9 outer shroud 5 from moving on axially at it.

Axletree parts 2 are made of axle drive shaft 11 and center shaft 12, and axle drive shaft 11 is attached on the torque transfer (not shown) by means of constant-velocity universal joint (not shown), and center shaft 12 has wheel installation portion 13, and is fixed on the axle drive shaft 11.Axle drive shaft 11 is formed and has the cylindric of end difference, and is provided with the zig-zag projection on the periphery of the right part 11a that is used as lowest calibre.Axle drive shaft 11 has a plurality of end differences such as the first large-diameter portion 11b, the second large-diameter portion 11c, the third-largest footpath 11d of portion, the above-mentioned first large-diameter portion 11b is connected the left end of the minor diameter part 11a in right part of axle drive shaft 11, the above-mentioned second large-diameter portion 11c is connected the left end of the first large-diameter portion 11b, and the above-mentioned the third-largest footpath 11d of portion is connected the left end of the second large-diameter portion 11c.Center shaft 12 has cylindrical portion 12a, left part 12b, interior rim bearing is subjected to the 12c of portion, above-mentioned cylindrical portion 12a is provided with the corresponding zig-zag projection of zig-zag projection with axle drive shaft 11 on interior week, above-mentioned left part 12b links to each other with cylindrical portion 12a, and its internal diameter be made into bigger and be embedded on the first large-diameter portion 11b of axle drive shaft 11 than cylindrical portion 12a, above-mentioned in rim bearing be subjected to periphery that the 12c of portion is set at cylindrical portion 12a roughly on the middle part.Center shaft 12 is entrenched on the axle drive shaft 11 by the zig-zag projection, and is fixed on the axle drive shaft 11 by nut 15 being screwed on the external thread part on the right part that is set at axle drive shaft 11.About in ring 6 be pressed on the periphery of cylindrical portion 12a and left part 12b, and located by the left surface of the 12c of portion by rim bearing in the right surperficial butt of ring 6 in right.Near the right-hand member of cylindrical portion 12a, formed the flange portion that is used as wheel installation portion 13.On this wheel installation portion (flange portion) 13, fixing a plurality of bolts 14 that are used to install wheel.

Sensor device 4 has by being used to measure the stator 21 of radial position variation and the brushless resolving device of VR shape that rotor 22 constitutes.Stator 21 is by making its sensor surface all in the inboard left part (the axially end of car body one side) that is pressed into the steering swivel 1a of sprung parts 1 of radial direction.In the present embodiment, rotor 22 is pressed on the second large-diameter portion 11c of axle drive shaft 11 of axletree parts 2, and with stator 21 configuration in opposite directions diametrically.On the outer surface of rotor 22, formed stator 21 whenever circle detected of the regulation that can detect (camcylinder face, have the barrel surface of otch etc.).Stator 21 is made of iron core 23 and stator winding 24, above-mentioned unshakable in one's determination 23 internal diameter is formed the ring-type of convex-concave shape, said stator coiling 24 is formed by the coil that is wrapped in successively on unshakable in one's determination 23 the male member, and the signal of stator 21 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Fig. 2 represents second embodiment of axle-supporting device of the present invention.The axle-supporting device in this enforcement originating party formula and the difference of first embodiment are sensor device.Only this difference is described below, and for the structure additional phase identical with first embodiment with mark and omit this explanation.

Sensor device 4 in this embodiment has by being used to measure the brushless resolving device of VR shape that stator 26 that axial location changes and rotor 27 constitute, and stator 26 is by making its sensor surface in the axial outside is pressed into the left part (the axially end of car body one side) of the steering swivel 1a of sprung parts 1 on week.And rotor 27 is pressed on the second large-diameter portion 11c of axle drive shaft 11 of axletree parts 2, and with stator 26 configuration in opposite directions in the axial direction.The left surface butt of rotor 27 the right surface of the third-largest footpath 11d of portion, on the right flank of rotor 27, has formed stator 26 whenever circle detected of the regulation that can detect (male and female face, have the tabular surface of otch etc.).

Stator 26 by unshakable in one's determination 28 and stator winding 29 constitute, above-mentioned unshakable in one's determination 28 side is formed the ring-type of convex-concave shape, said stator coiling 29 is formed by the coil that is wrapped in successively on unshakable in one's determination 28 the male member.The signal of stator 26 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Fig. 3 represents the 3rd embodiment of axle-supporting device of the present invention.The axle-supporting device in this enforcement originating party formula and the difference of first embodiment are sensor device.Only this difference is described below, and for the structure additional phase identical with first embodiment with mark and omit this explanation.

Sensor device 4 in this embodiment has by being used to measure the brushless resolving device of VR shape that stator 21 that radial position changes and rotor 31 constitute, and stator 21 is by making its sensor surface in radially inner side is pressed into the right part (the axially end of wheel one side) of the steering swivel 1a of sprung parts 1 on week.In the present embodiment, rotor 31 is pressed on the cylindrical portion 12a periphery of center shaft 12 of axletree parts 2 with stator 21 diametrically opposite to each other from the left side.With comparing of first embodiment, the interior rim bearing of center shaft 12 is subjected to the left surface of the 12c of portion to be positioned at the right side, the location of rotor 31 be right surperficial butt by rotor 31 in this rim bearing carried out by the 12c of portion.The location of interior ring 6 is to be undertaken by the left surface of the right surperficial butt rotor 31 of ring 6 in right.On the outer surface of rotor 31, formed stator 21 whenever circle detected of the regulation that can detect (camcylinder face, have the barrel surface of otch etc.).Stator 21 by unshakable in one's determination 23 and stator winding 24 constitute, above-mentioned unshakable in one's determination 23 internal diameter is formed the ring-type of convex-concave shape, said stator coiling 24 is formed by the coil that is wrapped in successively on unshakable in one's determination 23 the male member.The signal of stator 21 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Fig. 4 represents the 4th embodiment of axle-supporting device of the present invention.The axle-supporting device in this enforcement originating party formula and the difference of first embodiment are sensor device.Only this difference is described below, and for the structure additional phase identical with first embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the brushless resolving device of VR shape that stator 26 that axial location changes and rotor 41 constitute, and stator 26 is by making its sensor surface in the axial outside is pressed into the right part (the axially end of wheel one side) of the steering swivel 1a of sprung parts 1 on week.And rotor 41 is subjected on the 12c of the portion periphery with the interior rim bearing that stator 26 is pressed into the center shaft 12 of axletree parts 2 opposite to each other in the axial direction.The right flank butt of rotor 41 left surface of the base portion of wheel installation portion 13, on the left surface of rotor 41, has formed stator 26 is whenever circled detected (male and female face has the tabular surface of otch etc.) of the regulation that can detect.

Stator 26 by unshakable in one's determination 28 and stator winding 29 constitute, above-mentioned unshakable in one's determination 28 side is formed the ring-type of convex-concave shape, said stator coiling 29 is formed by the coil that is wrapped in successively on unshakable in one's determination 28 the male member.The signal of stator 26 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Fig. 5 represents the 5th embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of first embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with first embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the brushless resolving device of VR shape that stator 21 that radial position changes and rotor 32 constitute, and stator 21 is by making its sensor surface in radially inner side is pressed into the right part (the axially end of wheel one side) of the steering swivel 1a of sprung parts 1 on week.On steering swivel 1a, formed the recess 1b of the ring-type of holding stator 21, made steering swivel 1a and axletree parts 2 that mutual interference not take place.In the present embodiment, rotor 32 is pressed into from the right side on the third-largest footpath 11d of portion of axle drive shaft 11 of axletree parts 2, and with stator 21 diametrically in opposite directions.On the outer surface of rotor 32, formed stator 21 has whenever been circled detected (the camcylinder face has the barrel surface of otch etc.) of the regulation that can detect.Stator 21 by unshakable in one's determination 23 and stator winding 24 constitute, above-mentioned unshakable in one's determination 23 internal diameter is formed the ring-type of convex-concave shape, said stator coiling 29 is formed by the coil that is wrapped in successively on unshakable in one's determination 23 the male member.The signal of stator 21 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Fig. 6 represents the 6th embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of first embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with first embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the brushless resolving device of VR shape that stator 26 that axial location changes and rotor 42 constitute, and stator 26 is by making its sensor surface in the axial outside is pressed into the left part (the axially end of wheel one side) of the steering swivel 1a of sprung parts 1 on week.On steering swivel 1a, formed the recess 1b of the ring-type of holding stator 26, made steering swivel 1a and axletree parts 2 that mutual interference not take place.And rotor 42 is pressed on the third-largest footpath 11d of portion of axle drive shaft 11 of axletree parts 2, and with stator 26 configuration in opposite directions in the axial direction.The left surface butt of rotor 42 the right surface of the fourth-largest footpath 11e of portion, and has formed on the right flank of rotor 42 stator 26 is whenever circled detected (male and female face has the tabular surface of otch etc.) of the regulation that can detect.

Stator 26 by unshakable in one's determination 28 and stator winding 29 constitute, above-mentioned unshakable in one's determination 28 side is formed the ring-type of convex-concave shape, said stator coiling 29 is formed by the coil that is wrapped in successively on unshakable in one's determination 28 the male member.The signal of stator 26 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

In addition, in each above-mentioned embodiment, axle drive shaft 11 or center shaft 12 that rotor 22,27,31,41,32,42 has been made into axletree parts 2 are not the parts of one, and still, the processed rotor that forms also can be passed through in the outer surface of axle drive shaft 11 or center shaft 12 or side.

In the axle-supporting device from each embodiment of above-mentioned first to the 6th, if axletree parts 2 rotate, gap between detected of the sensor surface of stator 21,26 and rotor 22,27,31,41,32,42 just will change so, to obtain the voltage corresponding to pivot angle on stator 21,26, the change of voltage of stator 21,26 is sent to treatment circuit by means of signal wire (SW).In addition, if the ground connection load of tire changes, so, just change with respect to the location variation of the axletree parts 2 of sprung parts 1, stator 21,26 that is detected by resolving device and a. g. amount between the rotor 22,27,31,41,32,42 will change thereupon.As shown in figure 23, the variation of a. g. amount is exported by resolving device as voltage variety, in the rotation test section of the treatment circuit of resolving device (sensor device), obtains needed pivot angle or velocities of rotation such as ABS based on this output signal.In addition, be provided with the ground connection load operational part of storing arithmetic expression in the treatment circuit of resolving device, above-mentioned arithmetic expression is calculated ground connection load according to the location variation of exporting as the variable quantity of voltage, obtains ground connection load by this operational part.The ground connection load that is drawn is exported to controller of vehicle, thus vehicle is implemented appropriate control.

Fig. 7 represents the 7th embodiment of axle-supporting device of the present invention.The axle-supporting device in this enforcement originating party formula and the difference of first embodiment are sensor device.Only this difference is described below, and for the structure additional phase identical with first embodiment with mark and omit this explanation.

The axletree parts 2 of axle-supporting device shown in Figure 7 are made of axle drive shaft 11 and center shaft 12, above-mentioned axle drive shaft 11 is connected on the torque transfer (not shown) by means of free joint 16, above-mentioned center shaft 12 has wheel installation portion 13, and is fixed on the axle drive shaft 11.Axle drive shaft 11 is formed and has the cylindric of ladder, is provided with the zig-zag projection on the periphery of the right part 11a that is used as lowest calibre.The left part of axle drive shaft 11 is stamped to form to left and expands and the bowl type shape of opening, and this bowl type partly is used as the outer shroud 17 of free joint 16.Center shaft 12 has cylindrical portion 12a, left part 12b and interior rim bearing is subjected to the 12c of portion, above-mentioned cylindrical portion 12a on interior week, be provided with the corresponding zig-zag projection of the zig-zag of axle drive shaft 11 projection, above-mentioned left part 12b links to each other with the left part of above-mentioned cylindrical portion 12a, and internal diameter is bigger than cylindrical portion 12a, and be embedded on the end difference of axle drive shaft 11, above-mentioned in rim bearing be subjected to periphery that the 12c of portion is set at cylindrical portion 12a roughly on the middle part.

Free joint 16 is made of outer shroud 17, interior ring 18, ball 19 and retainer 20 etc., above-mentioned outer shroud 17 is set on the left part of axle drive shaft 11, and become one with axle drive shaft 11, ring 18 disposes in opposite directions with outer shroud 17 in above-mentioned, and be fixed on the power transmission shaft 21 that is installed on the differential attachment (not shown), above-mentioned ball 19 and retainer 20 are configured in respectively between outer shroud 17 and the interior ring 18.

Sensor device 4 has by being used to measure the brushless resolving device of VR shape that stator 21 that radial position changes and rotor 33 constitute, and stator 21 is by making its sensor surface in radially inner side is pressed into the left part (the axially end of car body one side) of the steering swivel 1a of sprung parts 1 on week.On steering swivel 1a, formed the recess 1b of the ring-type of holding stator 21, made steering swivel 1a and axletree parts 2 that mutual interference not take place.Detected outer surface that has used the outer shroud 17 that disposes in opposite directions diametrically with stator 21 as rotor 33.Owing to be used on the outer shroud 17 of free joint 16, so the processing that the outer surface of outer shroud 17 need not be implemented other approach promptly can be used as whenever circles detected of the regulation that can detect and utilize to stator 21 from the masterpiece of ball.Stator 21 by unshakable in one's determination 23 and stator winding 24 constitute, above-mentioned unshakable in one's determination 23 internal diameter is formed the ring-type of wooden comb dentation, said stator coiling 24 is formed by the coil on the part that is wrapped in all teeth of unshakable in one's determination 23 successively.The signal of stator 21 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

In the axle-supporting device of above-mentioned the 7th embodiment, if axletree parts 2 rotate, gap between the outer surface of the outer shroud 17 of the sensor surface of stator 21 and free joint 16 (the detected face of rotor 33) just will change so, to obtain the voltage corresponding to pivot angle on stator 21, the change of voltage of stator 21 is sent to treatment circuit by means of signal wire (SW).In addition, if the ground connection load of tire changes, so, just change with respect to the location variation of the axletree parts 2 of sprung parts 1, a. g. amount between the outer surface of the stator 21 that is detected by resolving device and the outer shroud 17 of free joint 16 will change thereupon.As shown in figure 23, the variation of a. g. amount is exported by resolving device as voltage variety, in the rotation test section of the treatment circuit of resolving device (sensor device), obtains needed pivot angle or velocities of rotation such as ABS based on this output signal.In addition, be provided with the ground connection load operational part of storing arithmetic expression in the treatment circuit of resolving device, above-mentioned arithmetic expression is calculated ground connection load according to the location variation of exporting as the variable quantity of voltage, obtains ground connection load by this operational part.The ground connection load that is drawn is exported to controller of vehicle, thus vehicle is implemented appropriate control.

Fig. 8 represents the 8th embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of first embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with first embodiment with mark and omit this explanation.

The sensor device 4 of axle-supporting device shown in Figure 8 has by being used to measure the stator 26 of axial location variation and the brushless resolving device of VR shape that rotor 43 constitutes.Stator 26 is fixed on the right side (the axially end face of car body one side) of the steering swivel 1a of sprung parts 1 towards axially going up the outside by making its sensor surface.The radial position of the sensor surface of stator 26, the pitch circle diameter of installing with bolt 14 with the wheel on the flange portion 13 that is set at center shaft 12 is positioned on the identical position.And, as detected of rotor 43, used this wheel that the end face of using bolt 14 is installed.Wheel is installed and has been set up 4～6 with bolt 14 with equally spaced form, and like this, axletree whenever circles, and stator 26 and wheel are installed with the distance (gap) between the end face of bolt 14 4～6 peak values will occur.Therefore, calculate in a week as rotating by 4～6 peak values that will occur, other rotor need not be set can be detected rotating speed.Stator 26 by unshakable in one's determination 28 and stator winding 29 constitute, above-mentioned unshakable in one's determination 28 internal diameter is formed the ring-type of wooden comb dentation, said stator coiling 29 is formed by the coil on the part that is wrapped in all teeth of unshakable in one's determination 23 successively.The signal of stator 26 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Fig. 9 represents the 9th embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of the 8th embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with the 8th embodiment with mark and omit this explanation.

The sensor device 4 of axle-supporting device shown in Figure 9 has by being used to measure the stator 26 of axial location variation and the brushless resolving device of VR shape that rotor 44 constitutes.Stator 26 is fixed on the right part of the steering swivel 1a of sprung parts 1 (axially on the end of car body one side by making its sensor surface towards the axial outside.The radial position of the sensor surface of stator 26, the pitch circle diameter of installing with bolt 14 with the wheel on the flange portion 13 that is set at center shaft 12 is positioned on the identical position.And, as detected end face that has used this wheel installation to use bolt 14 of rotor 44.Wheel is installed and has been set up 4～6 with bolt 14 with equally spaced form, and thus, stator 26 and wheel are installed with the distance (gap) between the end face of bolt 14, and stator whenever circles and will have the distance of 4～6 peak values.Therefore, by 4～6 peak values are rotated a week, other rotor need not be set can be detected rotating speed.Stator 26 by unshakable in one's determination 28 and stator winding 29 constitute, above-mentioned unshakable in one's determination 28 internal diameter is formed the ring-type of wooden comb dentation, said stator coiling 29 is formed by the coil on the part that is wrapped in all teeth of unshakable in one's determination 28 successively.The signal of stator 26 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Figure 10 represents the tenth embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of the 8th embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with the 8th embodiment with mark and omit this explanation.

This sensor device 4 has by being used to measure the stator 21 of radial position variation and the brushless resolving device of VR shape that rotor 34 constitutes.Stator 21 is by making its sensor surface in radially inner side is pressed into the right part end of wheel one side (axially) of the steering swivel 1a of sprung parts 1 on week.In the right part of steering swivel 1a on week, formed the recess 1b of the ring-type that is used to hold stator 21.In the present embodiment, the side of the axle on the flange portion 13 that is set at center shaft 12 looks up, and detected of rotor 34 is the outer surface of non-circular heavy section 16.When wheel mounting bolt 14 is 4 bolts, see that from birds-eye view this heavy section 16 is the general square shape shape.Thus, the distance (gap) between stator 21 and heavy section 16 outer surfaces whenever circles and will have 4 peak values.Therefore, by 4 peak values are rotated a week, other rotor need not be set can be detected rotating speed.Stator 21 by unshakable in one's determination 23 and stator winding 24 constitute, above-mentioned unshakable in one's determination 23 internal diameter is formed the ring-type of wooden comb dentation, said stator coiling 24 is formed by the coil on the part that is wrapped in all teeth of unshakable in one's determination 23 successively.The signal of stator 21 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Figure 11 represents the 11 embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of the 8th embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with the 8th embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the stator 26 of axial location variation and the brushless resolving device of VR shape that rotor 45 constitutes.Stator 26 is pressed on right part (the axially end of the car body one side) periphery of the steering swivel 1a of sprung parts 1 towards the axial outside by making its sensor surface.In the right part of steering swivel 1a on week, formed the recess 1b of the ring-type that is used to hold stator 26.The radial position of the sensor surface of stator 26 is compared with the pitch garden diameter of bolt 14 with the wheel installation on the flange portion 13 that is set at center shaft 12, is positioned on the less diametrical position.And, as detected of rotor 45, used " chinampa " of flange portion 13.So-called " chinampa " is meant non-circular heavy section, is heavy wall near wheel is installed with bolt 14, is thin-walled at the position of separating therewith.Thus, stator whenever circles, and the distance (gap) between the left surface on stator 26 and chinampa 45 all will have and equal wheel peak value with the number of bolt 14 is installed.By these peak values are done a week, other rotor need not be set can be detected rotating speed.Stator 26 by unshakable in one's determination 28 and stator winding 29 constitute, above-mentioned unshakable in one's determination 28 internal diameter is formed the ring-type of wooden comb dentation, said stator coiling 29 is formed by the coil on the part that is wrapped in all teeth of unshakable in one's determination 28 successively.The signal of stator 26 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

From the axle-supporting device of above-mentioned each embodiment of the 8th to the 11, if axletree parts 2 rotate, the wheel of the flange portion 13 of the sensor surface of stator 21,26 and center shaft 12 gap of installing between the left surface (the detected face of rotor 43,44,34,45) on the outer surface of end face with bolt 14, heavy section 16 or chinampa 45 just will change so, to obtain the voltage corresponding to pivot angle on stator 21,26, the change of voltage of stator 21,26 is sent to treatment circuit by means of signal wire (SW).In addition, if the ground connection load of tire changes, so, just change with respect to the location variation of the axletree parts 2 of sprung parts 1, a. g. amount between detected of stator 21,26 that is detected by resolving device and rotor 43,44,34,45 will change thereupon.As shown in figure 23, the variation of a. g. amount is exported by resolving device as voltage variety, in the rotation test section of the treatment circuit of resolving device (sensor device), obtains needed pivot angle or velocities of rotation such as ABS based on this output signal.In addition, be provided with the ground connection load operational part of storing arithmetic expression in the treatment circuit of resolving device, above-mentioned arithmetic expression is calculated ground connection load according to the location variation of exporting as the variable quantity of voltage, obtains ground connection load by this operational part.The ground connection load that is drawn is exported to controller of vehicle, thus vehicle is implemented appropriate control.

Figure 12 represents the 12 embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of first embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with first embodiment with mark and omit this explanation.

The sensor device 4 of the 12 embodiment shown in Figure 12 has by being used to measure the stator 21 of radial position variation and the brushless resolving device of VR shape that rotor 35 constitutes.Stator 21 is by making its sensor surface in radially inner side is pressed into the left part end of car body one side (axially) of the outer shroud 5 of antifriction-bearing box 3 on week.In this embodiment, rotor 35 adopts the shoulder of ring 6 in the left side that disposes in opposite directions diametrically with stator 21, and on the periphery of the shoulder of interior ring 6, formed detected (the camcylinder face has the barrel surface of otch etc.) to the moving regulation that can detect in a week of stator 21 revolutions.Stator 21 by unshakable in one's determination 23 and stator winding 24 constitute, above-mentioned unshakable in one's determination 23 internal diameter is formed the ring-type of convex-concave shape, said stator coiling 24 is formed by the coil that is wrapped in successively on unshakable in one's determination 23 the male member.The signal of stator 21 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Figure 13 represents the 13 embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of the 12 embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with the 12 embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the stator 21 of radial position variation and the brushless resolving device of VR shape that rotor 36 constitutes.Stator 21 is by making its sensor surface in the inboard left part (the axially end of car body one side) that is pressed into the outer shroud 5 of antifriction-bearing box 3 of radial direction on week.In this embodiment, rotor 36 adopts and the interior ring 6 of antifriction-bearing box 3 is not the parts of one, on the outer surface of rotor 36, formed detected (camcylinder face to the moving regulation that can detect in a week of stator 21 revolutions, have the barrel surface of otch etc.), and rotor 36 is pressed on the shoulder periphery of ring 6 in the left side, with stator 21 configuration in opposite directions diametrically.

Stator 21 by unshakable in one's determination 23 and stator winding 24 constitute, above-mentioned unshakable in one's determination 23 internal diameter is formed the ring-type of convex-concave shape, said stator coiling 24 is formed by the coil that is wrapped in successively on unshakable in one's determination 23 the male member.The signal of stator 21 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Figure 14 represents the 14 embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of the 12 embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with the 12 embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the stator 26 of axial location variation and the brushless resolving device of VR shape that rotor 46 constitutes.Stator 26 is by making its sensor surface in the axial outside is pressed into the left part end of car body one side (axially) of the outer shroud 5 of antifriction-bearing box 3 on week.Rotor 46 adopts ring-type, is pressed into from left on the shoulder periphery of ring 6 in the left side, and disposes in opposite directions from the axial outside and stator 26.On the right flank of rotor 46, formed stator 26 has whenever been circled detected (male and female face has the tabular surface of otch etc.) of the regulation that can detect.Stator 26 by unshakable in one's determination 28 and stator winding 29 constitute, above-mentioned unshakable in one's determination 28 side is formed the ring-type of convex-concave shape, said stator coiling 24 is formed by the coil that is wrapped in successively on unshakable in one's determination 28 the male member.The signal of stator 26 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

In addition, in Figure 14, stator 26 is configured in the inboard, rotor 46 is configured in the outside, but also can make it opposite, the sensor surface by making stator 26 is towards axial inboard, and stator 26 was pressed in the left part of outer shroud 5 of antifriction-bearing box 3 on week, and rotor 46 is pressed on the shoulder periphery of ring 6 in the left side from left, makes rotor 46 dispose not shown in opposite directions) from axial inboard and stator 26.Like this, by stator 26 being configured in the outside of rotor 46, can obtain to draw easily the effect of lead.

Figure 15 represents the 15 embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of the 12 embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with the 12 embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the stator 21 of radial position variation and the brushless resolving device of VR shape that rotor 37 constitutes.Stator 21 is by making its sensor surface in radially inner side is pressed into the right part end of car body one side (axially) of the outer shroud 5 of antifriction-bearing box 3 on week.Rotor 37 adopts and stator 21 shoulder of ring 6 in configuration right in opposite directions diametrically, encircles to have formed on the periphery of 6 shoulder in right stator 21 is whenever circled detected (the camcylinder face has the barrel surface of otch etc.) of the regulation that can detect.

Stator 21 by unshakable in one's determination 23 and stator winding 24 constitute, above-mentioned unshakable in one's determination 23 internal diameter or side are formed the ring-type of convex-concave shape, said stator coiling 24 is formed by the coil that is wrapped in successively on unshakable in one's determination 23 the male member.The signal of stator 21 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Figure 16 represents the 16 embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of the 12 embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with the 12 embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the stator 26 of axial location variation and the brushless resolving device of VR shape that rotor 47 constitutes.Stator 26 is by making its sensor surface in the axial outside is pressed into the right part end of car body one side (axially) of the outer shroud 5 of antifriction-bearing box 3 on week.Rotor 47 adopts ring-types, from right-hand be pressed into right on the shoulder periphery of ring 6, and dispose in opposite directions from the axial outside and stator 26.On the left surface of rotor 47, formed stator 26 has whenever been circled detected (male and female face has the tabular surface of otch etc.) of the regulation that can detect.Stator 26 by unshakable in one's determination 28 and stator winding 29 constitute, above-mentioned unshakable in one's determination 28 side is formed the ring-type of convex-concave shape, said stator coiling 29 is formed by the coil that is wrapped in successively on unshakable in one's determination 28 the male member.The signal of stator 26 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

In addition, in Figure 16, stator 26 is configured in the inboard, rotor 47 is configured in the outside, but also can make it opposite, the sensor surface by making stator 26 is towards axial inboard, and stator 26 was pressed in the right part of outer shroud 5 of antifriction-bearing box 3 on week, and make rotor 47 from right-hand be pressed into right on the shoulder periphery of ring 6, make rotor 47 dispose (not shown) in opposite directions from axial inboard and stator 26.Like this, by stator 26 being configured in the outside of rotor 47, can obtain to draw easily the effect of lead.

Figure 17 represents the 17 embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of the 12 embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with the 12 embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the stator 21 of radial position variation and the brushless resolving device of VR shape that rotor 38 constitutes.Stator 21 is by making its sensor surface in radially inner side is pressed into the substantial middle portion of outer shroud 5 of antifriction-bearing box 3 on week.Rotor 38 adopts the left part of the right interior ring 6 that disposes in opposite directions diametrically with stator 21, in right, encircle to have formed on the periphery of 6 left part stator 21 is whenever circled detected (the camcylinder face has the barrel surface of otch etc.) of the regulation that can detect.

Stator 21 by unshakable in one's determination 23 and stator winding 24 constitute, above-mentioned unshakable in one's determination 23 internal diameter is formed the ring-type of convex-concave shape, said stator coiling 24 is formed by the coil that is wrapped in successively on unshakable in one's determination 23 the male member.The signal of stator 21 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Figure 18 represents the 18 embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of the 12 embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with the 12 embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the stator 21 of radial position variation and the brushless resolving device of VR shape that rotor 39 constitutes.Stator 21 is by making its sensor surface in radially inner side is pressed into the substantial middle portion of outer shroud 5 of antifriction-bearing box 3 on week.Rotor 39 adopts ring-types, be embedded on the periphery of cylindrical portion 12a of center shaft 12, and with stator 21 configuration in opposite directions diametrically, that is, and about in encircle between 6.On the periphery of rotor 39, formed stator 21 has whenever been circled detected (the camcylinder face has the barrel surface of otch etc.) of the regulation that can detect.

Stator 21 by unshakable in one's determination 23 and stator winding 24 constitute, above-mentioned unshakable in one's determination 23 internal diameter is formed the ring-type of convex-concave shape, said stator coiling 24 is formed by the coil that is wrapped in successively on unshakable in one's determination 23 the male member.The signal of stator 21 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Figure 19 represents the 19 embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of the 12 embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with the 12 embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the stator 26 of axial location variation and the brushless resolving device of VR shape that rotor 48 constitutes.Stator 26 is by making its sensor surface in axial right side is pressed into the central portion of outer shroud 5 of antifriction-bearing box 3 on week.About in ring separated the gap between 6, and make the sensor surface of stator 26 face right in the left surface of ring 6.Rotor 48 adopt right in the left surface of ring 6, in right, encircle to have formed on 6 the left surface stator 26 whenever circled detected (male and female face has the tabular surface of otch etc.) of the regulation that can detect.Stator 26 by unshakable in one's determination 28 and stator winding 29 constitute, above-mentioned unshakable in one's determination 28 side is formed the ring-type of convex-concave shape, said stator coiling 29 is formed by the coil that is wrapped in successively on unshakable in one's determination 28 the male member.The signal of stator 26 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

From the axle-supporting device of each embodiment of the above-mentioned the 12 to the 19, if axletree parts 2 rotate, gap between detected of the sensor surface of stator 21,26 and rotor 35,36,46,37,47,38,39,48 just will change so, to obtain the voltage corresponding to pivot angle on stator 21,26, the change of voltage of stator 21,26 is sent to treatment circuit by means of signal wire (SW).In addition, if the ground connection load of tire changes, so, location variation with respect to the axletree parts 2 of sprung parts 1 just changes, and stator 21,26 that is detected by resolving device and a. g. amount between the rotor 35,36,46,37,47,38,39,48 will change thereupon.As shown in figure 23, the variation of a. g. amount is exported by resolving device as voltage variety, in the rotation test section of the treatment circuit of resolving device (sensor device), obtains needed pivot angle or velocities of rotation such as ABS based on this output signal.In addition, be provided with the ground connection load operational part of storing arithmetic expression in the treatment circuit of resolving device, above-mentioned arithmetic expression is calculated ground connection load according to the location variation of exporting as the variable quantity of voltage, obtains ground connection load by this operational part.The ground connection load that is drawn is exported to controller of vehicle, thus vehicle is implemented appropriate control.

Figure 20 represents the 20 embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of first embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with first embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the brushless resolving device of VR shape that stator 26 that axial location changes and rotor 49 constitute, and stator 26 is by making its sensor surface in radially inner side is pressed into left extension (the axially end of the car body one side) 5a of the outer shroud 5 of antifriction-bearing box 3 on week.Rotor 49 is pressed on the second large-diameter portion 11c of axle drive shaft 11 of axletree parts 2, and with stator 26 configuration in opposite directions in the axial direction.The left surface butt of rotor 49 the right surface of the third-largest footpath 11d of portion, on the right flank of rotor 49, has formed stator 26 is whenever circled detected (male and female face has the tabular surface of otch etc.) of the regulation that can detect.Stator 26 by unshakable in one's determination 28 and stator winding 29 constitute, above-mentioned unshakable in one's determination 28 side is formed the ring-type of convex-concave shape, said stator coiling 29 is formed by the coil that is wrapped in successively on unshakable in one's determination 28 the male member.The signal of stator 26 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Figure 21 represents the 21 embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of the 20 embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with the 20 embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the stator 21 of radial position variation and the brushless resolving device of VR shape that rotor 40 constitutes.Stator 21 is by making its sensor surface in radially inner side is pressed into the left extension end of car body one side (axially) 5a of the outer shroud 5 of antifriction-bearing box 3 on week.On the right shoulder of the second large-diameter portion 11c of the axle drive shaft 11 of axletree parts 2, being provided with rotor is pressed into and uses annular recessed portion 11e, and annular recessed portion 11e and stator 21 are disposed diametrically in opposite directions, rotor 40 has formed on outer surface whenever circle detected (camcylinder face of the regulation that can detect of stator 21, have the barrel surface of otch etc.), and be pressed into rotor and be pressed into on the annular recessed portion 11e.

Stator 21 by unshakable in one's determination 23 and stator winding 24 constitute, above-mentioned unshakable in one's determination 23 internal diameter is formed the ring-type of convex-concave shape, said stator coiling 24 is formed by the coil that is wrapped in successively on unshakable in one's determination 23 the male member.The signal of stator 21 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

Figure 22 represents the 22 embodiment of axle-supporting device of the present invention.This implements the axle-supporting device of originating party formula and the difference of the 20 embodiment is sensor device.Only this difference is described below, and for the structure additional phase identical with the 20 embodiment with mark and omit this explanation.

The sensor device 4 of this embodiment has by being used to measure the stator 21 of radial position variation and the brushless resolving device of VR shape that rotor 50 constitutes.Stator 21 is by making its sensor surface in radially inner side is pressed into the central portion (direction of principal axis rolling body) of the outer shroud 5 of antifriction-bearing box 3 on week.In addition, the left extension 5a of outer shroud 5 is omitted in this embodiment.Rotor 50 adopts the periphery of and center shaft 12 that stator 21 in opposite directions dispose inboard from radial direction, and on the periphery of this part of center shaft 12, formed stator 21 has whenever been circled detected (the camcylinder face has the barrel surface of otch etc.) of the regulation that can detect.Stator 21 by unshakable in one's determination 23 and stator winding 24 constitute, above-mentioned unshakable in one's determination 23 internal diameter is formed the ring-type of convex-concave shape, said stator coiling 24 is formed by the coil that is wrapped in successively on unshakable in one's determination 23 the male member.The signal of stator 21 is exported to the outside by means of distribution components such as lead, connecting pin (not shown).

From the axle-supporting device of each embodiment of the above-mentioned the 20 to the 22, if axletree parts 2 rotate, gap between detected of the sensor surface of stator 21,26 and rotor 49,40,50 just will change so, to obtain the voltage corresponding to pivot angle on stator 21,26, the change of voltage of stator 21,26 is sent to treatment circuit by means of signal wire (SW).In addition, if the ground connection load of tire changes, so, just change with respect to the location variation of the axletree parts 2 of sprung parts 1, stator 21,26 that is detected by resolving device and a. g. amount between the rotor 49,40,50 will change thereupon.As shown in figure 23, the variation of a. g. amount is exported by resolving device as voltage variety, in the rotation test section of the treatment circuit of resolving device (sensor device), obtains needed pivot angle or velocities of rotation such as ABS based on this output signal.In addition, be provided with the ground connection load operational part of storing arithmetic expression in the treatment circuit of resolving device, above-mentioned arithmetic expression is calculated ground connection load according to the location variation of exporting as the variable quantity of voltage, obtains ground connection load by this operational part.The ground connection load that is drawn is exported to controller of vehicle, thus vehicle is implemented appropriate control.

The axle-supporting device of the application of the invention, the vehicle that can detect to degree of precision automobile is controlled needed information, thereby can improve the precision of vehicle control.

Claims (22)

1. an axle-supporting device has: be installed in the sprung parts on the car body; Be used to install the axletree parts of wheel; Antifriction-bearing box, this antifriction-bearing box have the outer shroud that is installed on the sprung parts, be installed in the interior ring on the axletree parts and be configured in rolling body between two orbit rings; Sensor device,

It is characterized in that:

Sensor device has the resolving device that is made of stator and rotor, and stator is arranged on in sprung parts and the antifriction-bearing box outer shroud any, and rotor is arranged in axletree parts and the antifriction-bearing box on any in the ring,

Sensor device further has treatment circuit, be provided with in this treatment circuit: rotate test section, this rotation test section is according to the variation of a. g. amount between described stator and the rotor is obtained rotational angle or velocity of rotation as the signal of variation in voltage amount output; Ground connection load operational part stores the arithmetic expression of obtaining ground connection load according to described variation in voltage amount in this ground connection load operational part.

2. axle-supporting device as claimed in claim 1 is characterized in that: stator is arranged on the sprung parts, and rotor is arranged on the axletree parts.

3. axle-supporting device as claimed in claim 2, it is characterized in that: the axletree parts are made of axle drive shaft and center shaft, described axle drive shaft is connected on the torque transfer, described center shaft has the wheel installation portion and is fixed on the axle drive shaft, stator is arranged on the axial wheel side of sprung parts, and rotor is arranged on the center shaft of axletree parts.

4. axle-supporting device as claimed in claim 2, it is characterized in that: the axletree parts are made of axle drive shaft and center shaft, described axle drive shaft is connected on the torque transfer, described center shaft has the wheel installation portion and is fixed on the axle drive shaft, stator is arranged on the axial car body side of sprung parts, and rotor is arranged on the axle drive shaft of axletree parts.

5. axle-supporting device as claimed in claim 1 is characterized in that: stator and rotor be configuration in opposite directions in the axial direction.

6. axle-supporting device as claimed in claim 1 is characterized in that: stator and rotor be configuration in opposite directions diametrically.

7. axle-supporting device as claimed in claim 2 is characterized in that: be provided with free joint in the vehicle body-side end portion of axletree parts, the periphery of the outer shroud of free joint is used as detected of rotor.

8. axle-supporting device as claimed in claim 2 is characterized in that: be formed with flange portion on the axletree parts, this flange portion is provided with the bolt that is used to install wheel, and the flange portion of axletree parts is used as rotor.

9. axle-supporting device as claimed in claim 8 is characterized in that: stator and rotor be configuration in opposite directions in the axial direction.

10. axle-supporting device as claimed in claim 8 is characterized in that: stator and rotor be configuration in opposite directions diametrically.

11. axle-supporting device as claimed in claim 9 is characterized in that: the end face that is used to install the bolt of wheel is used as detected of rotor.

12. axle-supporting device as claimed in claim 10 is characterized in that: on the side of flange portion, be provided with from end on observation and be non-circular heavy section, the side face of heavy section is used as detected of rotor.

13. axle-supporting device as claimed in claim 1 is characterized in that: stator is arranged on the outer shroud of antifriction-bearing box, and rotor is arranged on the interior ring of antifriction-bearing box.

14. axle-supporting device as claimed in claim 13 is characterized in that: stator is arranged on the axial wheel side of outer shroud and axially on any in the car body side, and the periphery of the interior ring that disposes in opposite directions with stator is used as detected of rotor.

15. axle-supporting device as claimed in claim 13 is characterized in that: stator is arranged on the axial wheel side of outer shroud and axially on any in the car body side, and on the periphery of the interior ring that disposes in opposite directions with stator, being provided with interior ring is the rotor of different parts.

16. axle-supporting device as claimed in claim 13 is characterized in that: stator is arranged on the central portion of outer shroud, and the face of the interior ring that disposes in opposite directions with stator is used as detected of rotor.

17. axle-supporting device as claimed in claim 13 is characterized in that: stator is arranged on the central portion of outer shroud, and on the periphery of the interior ring that disposes in opposite directions with stator, being provided with interior ring is the rotor of different parts.

18. axle-supporting device as claimed in claim 1 is characterized in that: stator is arranged on the outer shroud of antifriction-bearing box, and rotor is arranged on the axletree parts.

19. axle-supporting device as claimed in claim 18 is characterized in that: stator is arranged on the axial car body side of outer shroud.

20. axle-supporting device as claimed in claim 18 is characterized in that: stator is arranged between the axial rolling body of outer shroud.

21. any one the described axle-supporting device as in the claim 1～20 is characterized in that: antifriction-bearing box has two row rolling bodys, outer shroud is formed has the one-piece type of two row rail grooves, and interior ring is formed the Splittable that has a row rail groove respectively.

22. an axle-supporting device has: be installed in the sprung parts on the car body; Be used to install the axletree parts of wheel; Antifriction-bearing box, this antifriction-bearing box have the outer shroud that is installed on the sprung parts, be installed in the interior ring on the axletree parts and be configured in rolling body between two orbit rings; Sensor device,

It is characterized in that:

Sensor device has the resolving device that is made of stator and rotor, stator is arranged on in sprung parts and the antifriction-bearing box outer shroud any, rotor is arranged in axletree parts and the antifriction-bearing box on any in the ring, and, form this rotor by any the face in the ring in axletree parts and the antifriction-bearing box is processed.

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