IE66983B1 - A method for mounting shaft bearings in particular for rotation sensors a device for effecting this method and rotation sensors thus obtained - Google Patents
A method for mounting shaft bearings in particular for rotation sensors a device for effecting this method and rotation sensors thus obtainedInfo
- Publication number
- IE66983B1 IE66983B1 IE411090A IE411090A IE66983B1 IE 66983 B1 IE66983 B1 IE 66983B1 IE 411090 A IE411090 A IE 411090A IE 411090 A IE411090 A IE 411090A IE 66983 B1 IE66983 B1 IE 66983B1
- Authority
- IE
- Ireland
- Prior art keywords
- shaft
- bearing
- mounting
- bearings
- jig
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/02—Bearings or suspensions for moving parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/063—Fixing them on the shaft
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Automatic Assembly (AREA)
- Support Of The Bearing (AREA)
- Rolling Contact Bearings (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Mounting Of Bearings Or Others (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Replacement Of Web Rolls (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The method is characterised in that it consists essentially in gluing the shaft (2) at the mounting position of the first bearing (1), in fitting the said shaft into the inner race of the said first bearing (1) until butting up against the bottom of a jig (3) for supporting the first bearing (1), in gluing the said shaft (2) at the mounting location of the second bearing (1), in placing it into a jig (4) for mounting the latter, in installing an intermediate pre-stressing spring (5) onto the shaft (2), in fitting the second bearing (1) over the shaft (2), in bringing the said second bearing (1) into its service position by means of a press (6) interacting with the jig (4), then in gluing, on the one hand, the bottom of the bearing part (7) of the rotation sensor (8) at the position of the housing of one of the bearings (1) and, on the other hand, the other bearing (1) on its outer race and, finally, in mounting the shaft (2) with its bearings (1) into the said bearing part (7). <IMAGE>
Description
Ά METHOD FOR MOUNTING SHAFT BEARINGS, IN PARTICULAR FOR ROTATION SEMSQRS, A DEVICE FOR EFFECTING THIS HETHOD AMD ROTATION SENSORS THUS OBTAINED The present invention relates to the field of mounting shafts and bearings, especially in bearing blocks and with prestressing, in particular shafts for rotation sensors, and the invention has for its ’ subject a method for mounting shaft bearinqs, in particular for λ rotation sensors.
The invention also has for its subject a device for effecting this method and the rotation sensors thus obtained.
In the particular case of coding devices such as absolute or incremental coders, for sensing rotational speeds,, numbers of rotations, accelerations and directions of rotations, the mounting of the rotation sensor shafts in their bearing block is generally carried out with variable prestressing depending on specific requirements.
At the present time, there exist for this purpose bearing devices in the form of a shaft provided with two bearing tracks, rings, rollers or parallel needle bearings working together with a cylinder.
Such devices, however, only allow limited adaptability of the shafts to requirements and thus less flexibility of application for utilizing specific shafts, each device being mass produced according to a given standard.
It is the same in relation to the prestressing exerted on the bearing blocks for the shafts, this prestressing remaining constant for a given type of manufacture and not being adaptable to a specific use.
• There also exist simple bearing mountings which are glued by their inner rings to the shaft to be guided, a spacer being mounted between the outer rings.
In this embodiment, adjustment of the prestressing is carried out by means of wedges to which a strictly calibrated force is applied, > this force being however, difficult to maintain constant. „ 1 eo983 It is an object of the present invention is to overcome these disadvantages.
It has, in effect, for its subject, a method for mounting shaft bearings, in particular for rotation sensors, which consists of gluing the shaft at the level of the mounting region for the first bearing, of fitting the said shaft into the inner ring of the said first bearing so as to butt against the base of a jig for supporting the said first bearing, of gluing the said shaft at the level of the mounting region for the second bearing, of placing it in a jig for mounting this latter, of putting an intermediary prestressing spring in place on this shaft, of fitting the second bearing onto the shaft, of bringing the said second bearing into its operating position by means of a press working with the jig, then of gluing, on the one hand, the base of the bearing block of the rotation sensor at the seating level of one of the bearings, and, on the other hand, the other bearing on its outer ring and, finally, of mounting the shaft with its bearings in the said bearing block.
The invention also has for its subject a device for effecting the method described above, which is formed by a station for gluing the shaft, the bearings and the bearing block of the rotation sensor, by a first jig for mounting the first bearing and by an assembly of jigs and presses for mounting with prestressing the second bearing.
The invention will be better understood by virtue of the following description, which relates to a preferred embodiment, given by way of non-limiting example, and explained with reference to the accompanying p schematic drawings, in which 4 Figure 1 is a sectional view of a coder obtained by effecting the method according to the invention^ - 2 Figure 2 is a plan view of the device for effecting the method according to the invention, and Figure 3 is a sectional view, to a larger scale, of a jig and press assembly of the device according to Figure 2.
S According to the invention and as shown more precisely, by way of © example, in Figures 1 to 3 of the accompanying drawings, the method of mounting the bearings 1 of shafts 2, in particular for rotation sensors, consists essentially of gluing the shaft 2 at the level of the mounting region for the first bearing 1, of fitting the said shaft 2 into the inner ring of the said first bearing 1 sufficiently far for it to butt against the base of a jig 3 for supporting the said first bearing 1.
The shaft 2 is then glued at the level of the mounting region for the second bearing 1, then placed into a jig 4 for mounting this latter. Then, an intermediary prestressing spring 5 is put in place on the shaft 2, and the second bearing 1 is fitted onto the shaft 2. This second bearing 1 is brought to its operating position by means of a press 5 cooperating with the jig 4. The base of the bearing block 7 of the rotation sensor 8 (Figure 1) is then glued at the level at which one of the bearings 1 is seated, and the other bearing 1 is glued on its outer ring, and, finally, the shaft 2 with its bearings 1 is mounted in the said bearing block 7.
This embodiment permits mounting and gluing commercial bearings, by their inner ring, directly onto shafts which are plain except for their ends, which are formed as a function of their use in the rotation sensor. This bearing assembly is carried out with prestressing of an intermediary spring which engages against the outer cages of the bearings 1, the prestressing being brought about by means of the press 6 working together with the jig 4, after mounting the second bearing, the polymerisation of the adhesive leading to the relative position of the two bearings being definitively maintained.
The prestressing exercised by the spring 5 may be adjusted in advance by action on this latter, that is to say by an appropriate choice of the cross-section of the wire from which it is formed or of - 3 the number of turns or yet again of its compression path.
Due to the provision of a jig 4 working together with the press 6, it suffices that this latter applies a force sufficient to compress the spring 5 until its surface of application, acting on the corresponding bearing 1 during mounting of this latter, comes to butt against the jig 4.
The mounting and gluing of the shaft 2 - bearings 1 assembly in the IQ bearing block 7 of the rotation sensor 8 is carried out manually with butting of the bearing 1 which corresponds to the base of the bearing block 7 against the said base.
The invention also has for its subject a device for effecting the 15 method described above characterised in that it essentially comprises a station 9 for gluing the shaft 2, the bearings 1 and the bearing block 7 of the rotation sensor 8, a first jig 3 for mounting the first bearing 1 and an assembly of jigs 4 and presses 5 for mounting with prestressing the second bearing 1.
The station 9 for gluing the shaft 2, the bearings 1 and the bearing block 7 of the rotation sensor 8 is advantageously formed by a drum 10 for mounting and driving the shaft 2 or the rotation sensor 8 by means of a chuck and by a pipette 11 for distribution of adhesive at the gluing regions connected to a reservoir for adhesive, rotational drive of the drum simultaneously initiating adhesive delivery and being activatable by a foot pedal.
The first jig 3 is formed by a hollow cylindrical member provided in its upper part with a shoulder 12 for support of the first bearing 1 and enabling seating of the shaft 2, the distance between the support surface of the shoulder 12 and the base of the cylindrical member being equal to the distance between the support surface of the bearing 1 and the opposite end of the shaft 2 (Figure 2).
Thus, after mounting the first bearing 1 on the shaft 2, it suffices to insert the said shaft 2, by its end opposite to the bearing 1, into the jig 3 and to bring the end of the shaft 2 to butt against - 4 the base of the jig 3 and the bearing 1 to butt against the shoulder 12 of the said jig 3.
Each jig 4 working together with a press 6 is formed, as shown in Figure 3, by a hollow cylindrical member, which can be mounted in alignment with the shaft of the jack of the corresponding press 6 by interchangeably fitting it into a cylindrical hole 13 of the support 14 for the said press 6 and the said hollow element having a closed base 15 for support of the end of the shaft 2 and guiding the bearings 1 by their outer ring.
Each press 5 is formed by a jack, the head 16 of which is provided with a hollow cylindrical portion 17 adapted to be fitted onto the corresponding end of the shaft 2 on which the bearings 1 are to be mounted and for engaging against the upper bearing and with a cylindrical portion of greater diameter 18 offset with respect to the hollow portion 17 and adapted to engage against the upper support surface of the corresponding jig 4, the length of the offset between the support surfaces of the portions 17 and 18 corresponding to the path of driving of the portion 17 into the jig 4 which is necessary to bring- about the prestressing of the spring 5.
Thus, after adjustment of this distance, the prestressing of the spring 5 is automatically obtained and the relative positioning of the bearings 1 is assured with absolutely perfect repetition from one shaft 2 to the other for the full duration of manufacture of a series of coders of the same type. In the case of a change in manufacture, it suffices to adapt the sizes of the jigs and of the portions 17 and 18 of the head 16 of each press 6 to the dimensions of the new series of shafts and the bearings which they carry.
Finally, the invention also has for a subject a rotation sensor 8 provided with a shaft mounted with prestressing in its bearing block by means of bearings 1 loaded by a spring 5 acting between their outer rings (Figure 1).
The rotation sensors 8 obtained by effecting the method according to the invention, by means of the device described above, may be perfectly - 5 adapted to their specific use, the mounting of the shaft in the bearing block being perfectly adjustable to a predetermined constraint.
It will be understood that the invention is not limited to the embodiment described and depicted in the accompanying drawings. Modifications remain possible, in particular from the point of view of formation of the various members or by substitution of equivalent techniques without however departing from the field of protection of the invention.
Claims (11)
1. A mounting method for shaft bearings, in particular in rotation sensors, which consists essentially of gluing the shaft (2) at the level of the mounting region for the first bearing (1), of fitting the s said shaft into the inner ring of the said first bearing (1), of fitting the said shaft into the inner ring of the said first bearing (1) so as to butt against the base of a jig (3) for supporting the said first bearing (1), of gluing the said shaft (2) at the level of the mounting region for the second bearing (1), of placing it into a jig (4) for mounting this latter, of putting an intermediary prestressing spring (5) in place on the shaft (2), of fitting the second bearing (1) onto the shaft (2), of bringing the said second bearing (1) into its operating position by means of a press (δ) working together with the jig (4), then of gluing, on the one hand, the base of the bearing block (7) of the rotation sensor (8) at the seating level of one of the bearings (1), and, on the other hand, the other bearing (1) on its outer ring, and, finally, of mounting the shaft (2) with its bearings (1) in the said bearing block (7).
2. A method according to claim 1, characterised in that the mounting and gluing of the shaft (2) bearings (1) assembly in the bearing block (7) of the rotation sensor (8) is carried out manually with butting of the bearing (1) corresponding to the base of the bearing block (7) against the said base,
3. A device for effecting the method according to either of claims 1 and 2, which is essentially formed by a station (9) for gluing the shaft (2), the bearings (1) and the bearing block (7) of the rotation sensor (8), by a first jig (3) for mounting the first bearing (1), and by an assembly of jigs (4) and presses (6) for mounting with prestressing the second bearing (1).
4. A device according to claim 3, characterised in that the station > (9) for gluing the shaft (2), the bearings (1) and the bearing block (7) of the rotation sensor (8) is advantageously formed by a drum (10) for mounting and driving the shaft (2) or (8) by means of a chuck and by a pipette (11) for distribution of adhesive to the regions to be - 7 glued, connected to a reservoir for adhesive, rotational drive of the drum simultaneously triggering delivery of adhesive and being activatable by a foot pedal.
5. A device according to claim 3, characterised in that the first jig (3) is formed by a hollow cylindrical member provided in its upper portion with a shoulder (12) for support of the first bearing (1) and enabling seating of the shaft (2), the distance between the support 10 surface of the shoulder (12) and the base of the cylindrical member being equal to the distance between the support surface of the bearing (1) and the opposite end of the shaft (2).
6. A device according to the claim 3, characterised in that each jig 15 (^) working together with a press (6) is formed by a hollow cylindrical member, which may be mounted in alignment with the axis of the jack of the corresponding press by interchangeably fitting it into a cylindrical hole (13) in the support (14) for the said press (6), and the said hollow member having a closed base (15) for support of the end 20 oi the shaft (2) and guiding the bearings (1) by their outer rings.
7. A device according to any of claims 3 and 6, characterised in that each press (5) is formed by a jack, the head (15) of which is provided with a hollow cylindrical portion (17) adapted to be fitted onto the 25 corresponding end of the shaft (2) for mounting the bearings (1), and to engage against the upper bearing, and by a cylindrical portion (18) of greater diameter, offset with respect to the hollow portion (17), and adapted to engage against the support surface of the corresponding jig (4), the length of the offset between the support surfaces of the 30 portions (17) and (18) corresponding to the driving path of the portion (17) in the jig (4) which is necessary to bring about the prestressing of the spring (5).
8. A method according to claim 1 of mounting shaft bearings, 35 substantially as described herein with reference to the accompanying drawings.
9. A shaft mounted by the method of claim 1, claim 2 or claim 8. - 8
10. A device according to claim 3 for mounting shaft bearings, substantially as described herein with reference to and as shown in Figures 2 and 3 of the accompanying drawings.
11. A rotation sensor substantially as described herein with reference to and as shown in Figure 1 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8915078A FR2654479B1 (en) | 1989-11-14 | 1989-11-14 | METHOD FOR MOUNTING AXLE BEARINGS, PARTICULARLY ENCODERS, DEVICE FOR CARRYING OUT SAID METHOD AND ENCODERS THUS OBTAINED. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE904110A1 IE904110A1 (en) | 1991-05-22 |
| IE66983B1 true IE66983B1 (en) | 1996-02-21 |
Family
ID=9387481
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE411190A IE904111A1 (en) | 1989-11-14 | 1990-11-14 | A device for floating mounting of a shaft, in particular for¹a sensor |
| IE411090A IE66983B1 (en) | 1989-11-14 | 1990-11-14 | A method for mounting shaft bearings in particular for rotation sensors a device for effecting this method and rotation sensors thus obtained |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE411190A IE904111A1 (en) | 1989-11-14 | 1990-11-14 | A device for floating mounting of a shaft, in particular for¹a sensor |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP0428462B1 (en) |
| JP (1) | JPH03186613A (en) |
| KR (1) | KR100193106B1 (en) |
| AT (1) | ATE117612T1 (en) |
| AU (1) | AU649978B2 (en) |
| BR (1) | BR9005784A (en) |
| CA (1) | CA2029735A1 (en) |
| CZ (1) | CZ563090A3 (en) |
| DE (1) | DE69016358T2 (en) |
| FR (1) | FR2654479B1 (en) |
| HU (1) | HU907119D0 (en) |
| IE (2) | IE904111A1 (en) |
| SU (1) | SU1799320A3 (en) |
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| AU2003209853B2 (en) * | 2002-04-26 | 2007-02-01 | David John Thomson | Bearing press support adaptor |
| AUPS194502A0 (en) * | 2002-04-26 | 2002-05-30 | Thomson, David John | A support adaptor for a bearing press |
| CN101315292B (en) * | 2007-05-31 | 2010-11-10 | 鸿富锦精密工业（深圳）有限公司 | Tool |
| CN101745798B (en) * | 2009-12-15 | 2012-05-30 | 中国北车集团大连机车车辆有限公司 | Non-oiling press mounting process between wheel and axle of locomotive |
| CN102114593B (en) * | 2011-03-31 | 2012-11-21 | 中国科学院自动化研究所 | Intelligent pressing device and method of eccentric shaft and bearing |
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| DE102012223003A1 (en) * | 2012-12-13 | 2014-06-18 | Aktiebolaget Skf | Method for mounting a bearing assembly |
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| CN106737385B (en) * | 2016-12-21 | 2018-05-08 | 中国南方航空工业(集团)有限公司 | A kind of bearing assembly method |
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| US3191259A (en) * | 1963-06-21 | 1965-06-29 | Frank E Dalton | Apparatus for mounting bearing assemblies on a shaft |
| DE1525257B2 (en) * | 1965-12-08 | 1973-03-29 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | PROCEDURE FOR DETERMINING THE ADJUSTMENT TRAVEL OF A ROLLER BEARING ARRANGEMENT CORRESPONDING TO A DESIRED PRELOADING FORCE |
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| EP0359247A3 (en) * | 1988-09-16 | 1991-03-06 | Litton Precision Products International Gmbh | Rotation sensor |
-
1989
- 1989-11-14 FR FR8915078A patent/FR2654479B1/en not_active Expired - Fee Related
-
1990
- 1990-11-13 EP EP90440099A patent/EP0428462B1/en not_active Expired - Lifetime
- 1990-11-13 DE DE69016358T patent/DE69016358T2/en not_active Expired - Fee Related
- 1990-11-13 AT AT90440099T patent/ATE117612T1/en not_active IP Right Cessation
- 1990-11-13 CA CA002029735A patent/CA2029735A1/en not_active Abandoned
- 1990-11-13 SU SU904831777A patent/SU1799320A3/en active
- 1990-11-13 HU HU907119A patent/HU907119D0/en unknown
- 1990-11-14 JP JP2308418A patent/JPH03186613A/en active Pending
- 1990-11-14 IE IE411190A patent/IE904111A1/en unknown
- 1990-11-14 CZ CS905630A patent/CZ563090A3/en unknown
- 1990-11-14 KR KR1019900018411A patent/KR100193106B1/en not_active IP Right Cessation
- 1990-11-14 AU AU66585/90A patent/AU649978B2/en not_active Ceased
- 1990-11-14 BR BR909005784A patent/BR9005784A/en not_active IP Right Cessation
- 1990-11-14 IE IE411090A patent/IE66983B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE117612T1 (en) | 1995-02-15 |
| FR2654479B1 (en) | 1992-02-07 |
| EP0428462A1 (en) | 1991-05-22 |
| KR910010078A (en) | 1991-06-28 |
| KR100193106B1 (en) | 1999-06-15 |
| EP0428462B1 (en) | 1995-01-25 |
| DE69016358T2 (en) | 1995-09-28 |
| SU1799320A3 (en) | 1993-02-28 |
| CA2029735A1 (en) | 1991-05-15 |
| AU649978B2 (en) | 1994-06-09 |
| FR2654479A1 (en) | 1991-05-17 |
| JPH03186613A (en) | 1991-08-14 |
| IE904110A1 (en) | 1991-05-22 |
| IE904111A1 (en) | 1991-05-22 |
| BR9005784A (en) | 1991-09-24 |
| CZ563090A3 (en) | 1993-06-16 |
| DE69016358D1 (en) | 1995-03-09 |
| HU907119D0 (en) | 1991-05-28 |
| AU6658590A (en) | 1991-05-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Patent lapsed |