JP3065391B2 - Rolling bearing with adjustable information pickup position - Google Patents

Abstract

PURPOSE: To enable an information pick-up device to be easily mounted and dismounted and prevented from contacting an outer surface by forming a ring- shaped supporting member movably supporting a coding element and engaging the engagement edge of the ring-shaped supporting member with the side surface of a groove formed on the outer race of a bearing. CONSTITUTION: A hooked end portion 27 of the distal end is formed in a ring- shaped supporting member 26 integral with a pick-up element sensor 25. The hooked end portion 27 is engaged with the surface of a groove 31 formed on the outer cylindrical surface of an outer race 16. A supporting face 29a is fixed on the surface 29 of the outer race 16 in a manner of elastic contact. A coding element 18 is fixedly mounted on a spiral plate 19 of a sealing gasket so as to move the front of the pick-up element 25. The upper surface 60 of the outer race 16 of the ring-shaped supporting member 26 is accommodated in the interior of a bore 170 without any interference.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is, to pick up the information
That position is Ru der relates adjustable rolling bearings.
The invention particularly has a ring-shaped coding element which rotates together with the rotating part of the bearing, the ring-shaped coding element being in front of at least one pickup element.
Moved, the pickup element has become a support integrally fixed with respect to the rotating member of the bearing, ring-shaped code
Doping element is permissible in the performance of pickup element (sensor)
Fixed in a location separated by the largest gap
And rolling bearings.

[0002]

2. Description of the Related Art German Patent DE-A-2,505,802 describes a bearing incorporating an information pickup device. In this bearing, it is necessary to use an assembling method for accurately positioning the angular position of the bearing in order to position the output line of the information signal in an appropriate direction. In this bearing, a collar is attached to the side surface of the bearing or press-fitted to fix the axial position inside the bearing accommodating portion. At that time, it is necessary to apply strong mechanical stress. However, the bearing moves angularly in the housing due to thermal expansion differences due to temperature changes. Then, when the pickup moves, the information transmission cable and the electrical connection connected thereto are separated. French Patent No. FA-A-2,618,516 describes a pickup incorporated in an outer race via a steel plate member. In this case, the steel plate member is accommodated in an annular groove formed in the outer race. In this configuration, the pickup cannot be securely fixed, and it is difficult to airtightly mount the pickup on the bearing. The pick-up described in FR-A-88 / 16,795 maintains an angular position by means of a notch in the housing. In this device, when mounting the bearing in the housing, it is necessary to determine the orientation of the bearing with respect to the notch.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, especially the problems of the pickup and / or its support. Another object of the present invention is to provide an information pickup device without any contact with the outer surface of the bearing.
It is an object of the present invention to provide a method for mounting an information pickup device that can position and hold the information pickup device. Still another object of the present invention is to provide a bearing which can be detached without a specific tool and which can be operated without any problem when the information pickup device is attached or detached.

[0004]

According to the rolling bearing provided by the present invention, the support of the pickup element is in the form of a ring-shaped support, and the locking edge of the ring-shaped support is formed on the outside of the bearing. It is characterized in that it engages with the side surface of the groove formed in the race. In a bearing having this construction, the pick-up element can be accurately positioned axially and radially in front of, at a predetermined distance from, the surface of the coding element integral with the rotating part of the bearing, and Can be displaced in the angular direction. Further, the angular position of the pickup element can be fixed by using an outer fixing member for attaching the bearing to the housing. Other features and advantages of the present invention will become apparent from the following description of embodiments with reference to the accompanying drawings.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The device shown in FIG. 1 shows a bearing surface 10 of a bearing of a hub 9 which is driven via a grooved shaft 12 integral with a driven element 11 of a transmission coupling. A bearing 13 is mounted on the support surface 10. The bearing 13 has two rows of rotating bodies 14 arranged between an inner race 15 and an outer race 16 which are divided into two. The bearing 13 is sealed with a sealing gasket incorporating a lip seal, such as the sealing gasket described in U.S. Pat. No. 4,434,985. The bearing 13 is mounted in a bore 170 formed in the housing 17 such as a spindle support, abuts the shoulder 50 of the bore 170, and is axially fixed by a retaining ring 51.

[0006] As shown in FIG. 3, the information pickup device is known, the pickup element or sensor 25 and co
And a switching element 18. The coding element 18 is fixed to the baffle 19 of the sealing gasket of the bearing 13 and rotates with the hub 9. In the embodiment shown in FIG. 3, the coding element 18 is a ring-shaped magnet 18 having a large number of NS poles.
The ring-shaped magnet 18 is fixed to the deflector 19 of the sealing gasket by any known fixing means, for example, bonding, welding, or integral molding, but it can also be made with simple magnetization. This coding element 18 moves in front of the pickup element 25. The pick-up element 25 itself is known and comprises one or more information pick-up elements connected to an electronic circuit. The pickup element sensor 25 is integrated with the ring-shaped support member 26. this
The ring-shaped support member 26 is elastically held in a state of a retaining ring fixed on the outer race 16. That is,
Ring-like support member 26 has a tapered hook end 27, the hook end 27 side engage correspondingly shaped grooves 31 formed on the outer cylindrical surface of the outer race 16. Ring-shaped support member 26
The supporting surface 29a elastically in contact with the surface 29 of the outer race 16, Ru is fixed. The ring-shaped support member 26 fits perfectly into the groove 31 by the radial component of the elastically abutting and fixing force.

The upper surface 60 of the outer race 16 of the ring-shaped support member 26 is housed inside the bore 170 without any interference. As shown in FIG. 6, the ring-shaped support member 26 is formed into an elliptical shape E, and is elastically abutted and fixed at points A and B on both sides in the diameter direction inside the bore 170 of the housing 17. /> by Rukoto may be ring-shaped support member 26 is prevented from vibrating in the bore 1 70. -Ring-shaped support member 26
Support surface 29a of the pickup element 25 constitutes a part of the holding head 35 of the pickup element 25.

As shown in FIGS. 4 and 5, the holding head 35 is constituted by a sliding member 37 whose lateral movement is restricted by two projections 38. Each projection 38 has a threaded hole 39 into which a screw 43 for fixing the pickup element 25 is inserted. The pick-up element 25 is housed inside a protection device 40 having two fixing holes 41 corresponding to the threaded holes 39. A connection cable 42 for transmitting a signal is connected to the protection device 40.

[0009] As shown in FIG. 3, when the rolling bearing fitted with a ring-shaped support member 26 is mounted within the bore 170 of the housing 17, a ring-shaped portion of the ring-shaped support member 26 constitutes the receiving portion of the outer race 16 It is held in the interior of the groove 31 of the inner and outer races 16 of the bore 170 of the housing 17. By adopting the mounting method of this structure, the ring-shaped support member
26 will not come out. Also, since nothing prevents the relative rotation of the ring-shaped support member 26 with respect to the outer race 16, the bearing 13 is mounted on the housing 17, so that the pickup element 25 and its ring-shaped support member 26 are mounted. kill at positioned at a desired angular position.

As shown in FIG. 2, the pickup element 25 is inserted into a tenon hole 20 formed in the housing 17 to prevent the ring-shaped support member 26 and the pickup element 25 from rotating. Therefore, the outer race 16 c
Sometimes stress in pickup element 25 has moved to the angular degree direction Ujingu within 17 will not be applied.

In the embodiment of the bearing described with reference to FIGS. 1 to 5, the pickup element 25 is fixed to the ring-shaped support member 26 by screws, but the present invention is not limited to this fixing method. Instead, any other known holding means can be used. If it is not necessary to remove the pickup element 25, the ring-shaped support member 26 and the pickup element 25 may be formed, for example, in the form of a semicircular elastic armature, on which a so-called pickup part may be formed.

In the bearing shown in FIG. 7, the corresponding parts in FIG. The outer race 216 of the bearing 213 shown in this figure is fitted into a bore 270 formed in the housing 217, and a stop ring 226 fitted inside the receiving grooves 231 and 231 'of the outer race 216. twenty two
It is fixed so as not to move in the axial direction by 6 '.
On one of the retaining ring 226 radially legs 235 bent toward the center of the outer race 216 is formed.
This radial leg 235 constitutes a holding means 225 for the pick-up element, as before.

[0013] As shown in FIG. 8, the housing 217 is the axis
Has a projection 258 extending in a direction, the projection 258 is disposed in the plane of the groove 231 of the outer race 216, Howe bearing 213
This projection extends in the axial direction when attached to the jing 217.
258 outer race 2 16 fits into the notch formed in the outer race 226 is adapted to prevent rotation of.
This axially extending protrusion 258 is a cable 242 integral with the pickup element 225 mounted on the radial leg 235.
Is formed on the housing 217 at an angular position such that the light can be branched to an appropriate position.

[0014] Figure 9 shows another embodiment of the present invention. In this embodiment, the rotating shaft 310 is supported by the bearing 313,
Bearing 313 has a series of rolling components 314 between inner race 315 and outer race 316. The bearing 313 is mounted in a bore formed in the housing 317, and its axial position is positioned by the shoulder 350, and is fixed by the cover 351 so as not to move in the axial direction. The axial position of the cover 351 relative to the outer surface 329 of the outer race 316 is adjusted by shims 352. Accordingly, the outer race 316 is fixed so as not to move in the axial direction with respect to the housing 317. A seal 355 is arranged between the cover 351 and the rotating shaft 310. The information pickup device is composed of a coding element 318, and this coding element 3
18 rotates with rotating parts such as inner race 315. Coding element 318 is a ring-shaped pickup element
Move before 325. The pick-up element 325 comprises one or more information pick-up elements connected to a suitable electronic circuit.

The pick-up element 325 includes an outer race 316
It is housed inside a groove 316 formed in the inner bore of the inner race, and retains its axial direction, but is capable of moving in an angular direction with respect to the outer race 316. Pickup element 325 has an extension 354 which extends
54 holds a connection cable 342. Extension 354
Are located in holes 320 formed in the cover 351.
The hole 320 forms a passage for the connection cable 342.
The connection cable 342 occupies a predetermined angular position with respect to the reference point. The reference point can be constituted, for example, by fixing the cover to the housing. Extension 354 has hole 3
It is sealed by an outer peripheral seal provided inside 20, so that the angular direction of the pickup element with respect to the cover 351 is fixed. Pickup element for outer race
Positioning of 325 can be performed by positioning of cover 351. That is, if the cover 351 is fixed to the housing 317, the rotational position with respect to the pickup element 325 is fixed. Even in the event of rotation, there is no risk that the pickup element 325 will be damaged.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view taken along line Y1-Y2 of FIG. 2 without a pickup element, showing one embodiment of a device for mounting a steering and drive shaft bearing.

FIG. 2 is a partial cross-sectional view taken along line XX of FIG .

FIG. 3 is an enlarged view showing a method of attaching the pickup element support member shown in FIG.

FIG. 4 is an exploded view of one embodiment of each component of the bearing before mounting.

FIG. 5 is a side view of the pickup element support member and the pickup element shown in FIG. 4;

FIG. 6 is a plan view of another embodiment of the pickup element supporting member shown in FIG.

FIG. 7 is an axial cross-sectional view of a steering / drive shaft bearing.

FIG. 8 is a partial cross-sectional view taken along line VIII-VIII of FIG. 7, showing a rotation stopping member of the pickup element supporting member.

FIG. 9 is an axial cross-sectional view of one embodiment of a bearing having one row of rotating bodies.

[Explanation of symbols]

 14, 214, 314 Rotating body 13, 213, 313 Bearing 17, 117, 317 Housing 18, 218, 318 Coding element 26, 226, 326 Support 25, 225, 325 Pickup element 16, 216, 316 Outer race 20 Tenon Hole 21

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-U 3-83873 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F16C 19/00 F16C 41/00 G01P 3 / 488 B60T 8/00

Claims (12)

(57) [Claims] 1. A bore (17) formed in a housing (17).
0), wherein the outer bearing has a groove (31) on the inner or outer surface.
Relative to the outer race (16) and the outer race (16)
Possible inner lace (15), outer lace (16) and inner lace
A plurality of rotating bodies (14) disposed between the base (15),
Annular coding element rotatable with inner race (15)
(18) and can be engaged in the groove (31) of the outer race (16)
Ring-shaped support with hook end (27) extending in the axial direction
Holding member (26) and this ring-shaped support member (26)
Pickup element (25) that composes the
And the annular coding element (18) is a pickup element
(25) a rolling shaft moving in front of
Receiving . 2. The pickup element (25) includes a housing (1).
It is housed in the tenon hole (20) formed in the bore (170) of 7).
And rolling bearing according to claim 1 and. 3. The groove (31) has an outer surface of the outer race (16).
The rolling bearing according to claim 1 or 2, wherein the rolling bearing is formed thereon . 4. An axially extending ring-shaped support member (26).
Part of the hooked end (27) is bored in the housing (17).
The rolling bearing according to any one of claims 1 to 3, which is inside (170) . 5. The ring-shaped support member (26) has an oval shape.
Rolling bearing according to any one of claims 1 to 4 that. 6. A ring-shaped support member having two free ends.
The rolling bearing according to any one of claims 1 to 5, wherein the rolling bearing has one split pin . 7. A housing (217) having a projection (258).
In order to prevent the rotation of the ring-shaped support member (226),
The protrusions (258) are the two free ends of the ring-shaped support member (226)
The rolling bearing according to claim 6, which is inserted between the rolling bearings. 8. Two free ends of a ring-shaped support member (26).
Project obliquely from the surface of the ring-shaped support member (26).
And the ring-shaped support member (26) is the groove of the outer race (16) .
(6) The elastic member is adapted to be retained elastically therein.
The rolling bearing described in the above . 9. A phosphor (17) in a bore (170) of a housing (17).
Support member (26) also holds the outer race (16)
The rolling bearing according to claim 1 . 10. The groove (353) being inside the outer race (316).
3. The rolling bearing according to claim 1, which is formed on a surface . 11. A housing (17) mounted on a housing (17).
A rolling bearing having an outer race having a groove (31) on an inner surface or an outer surface.
Relative to the outer race (16) and the outer race (16)
Possible inner lace (15), outer lace (16) and inner lace
A plurality of rotating bodies (14) disposed between the base (15),
Annular coding element rotatable with inner race (15)
(18) and the pickup element that constitutes the sensor (25)
And this pickup element (25) is connected to the annular coding element (1
8) Fixed in the immediate axial and radial position of
Fixing means for fixing the pickup.
Element (25) can be moved in the circumferential direction
Rolling bearing . 12. A housing mounted on a housing (17).
A rolling bearing having an outer race having a groove (31) on an inner surface or an outer surface.
Relative to the outer race (16) and the outer race (16)
Possible inner lace (15), outer lace (16) and inner lace
A plurality of rotating bodies (14) disposed between the base (15),
Annular coding element rotatable with inner race (15)
(18) and the pickup element that constitutes the sensor (25)
And the axial direction that can be engaged in the groove (31) of the outer race (16)
Ring-shaped support member having a hook end (27) extending in the opposite direction
(26) and attached to the ring-shaped support member (26).
Pickup element (25) that constitutes the sensor
And the annular coding element (18) is a pickup element (25)
The ring-shaped support member (26)
Radially inwardly extending projections (3
8) A rolling bearing characterized by having: