CN109945767A - A kind of positioning and orientation system indexing mechanism angular contact bearing pretightning force adjusting method - Google Patents
A kind of positioning and orientation system indexing mechanism angular contact bearing pretightning force adjusting method Download PDFInfo
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- CN109945767A CN109945767A CN201910197968.0A CN201910197968A CN109945767A CN 109945767 A CN109945767 A CN 109945767A CN 201910197968 A CN201910197968 A CN 201910197968A CN 109945767 A CN109945767 A CN 109945767A
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Abstract
The invention discloses a kind of positioning and orientation system indexing mechanism angular contact bearing pretightning force adjusting methods, comprising the following steps: 1) measures the Internal and external cycle difference in height h of angular contact bearing；2) measure angular contact bearing cycle surface to outline border mounting surface depth L1；3) the difference in height L2 between the step press-assembling surface and installation end face of the bearing (ball) cover before measurement assembly；4) the step press-assembling surface of the bearing (ball) cover before match grinding assembly, match grinding amount are5) manufacturing specification is the annular aluminum foil pad of 0.01mm thickness, and the outer diameter of annular aluminum foil pad is less than the outer diameter of the outer ring of angular contact bearing, and the internal diameter of annular aluminum foil pad is greater than the internal diameter of the inner ring of angular contact bearing；6) at least one annular aluminum foil pad is mounted on the end face of angular contact bearing, and is compressed annular aluminum foil pad with the bearing (ball) cover with milled, the installation end face of bearing (ball) cover is bonded with the mounting surface of outline border at this time.Suitable for positioning and orientation system.
Description
Technical field
The present invention relates to machinery field, in particular to a kind of positioning and orientation system indexing mechanism angular contact bearing pretightning force tune
Section method.
Background technique
Currently, conventional positioning and orientation system frame usually pass through rotation axis between three frame bodies or two frames and its
Precision bearing (angular contact bearing) realizes the movement of three-dimensional or two-dimensional surface, and structural member has that precision is high, the thin special-shaped, structure of wall
It is compact, size is small, shape and the high feature of dimensional stability requirements.
Specifically, angular contact bearing is usually to use in pairs, detection is adjusted without carrying out bearing pre-fastening.But because of positioning
Orientation system is compact-sized, and used angular contact bearing is unilateral use, so needing technical staff couple after the assembly is completed
The bearing pre-fastening of each angular contact bearing is adjusted, make the bearing pre-fastening of each angular contact bearing be consistent (even if
The bearing pre-fastening of each angular contact bearing is kept in a certain range).
But because of the foozle of the foozle of angular contact axis and bearing (ball) cover, so the step press-assembling surface of bearing (ball) cover
Gap floating between the end face of angular contact bearing is larger, in this way, greatly increasing technical staff adjusts bearing pre-fastening
Difficulty.Once the bearing pre-fastening of each angular contact bearing is not adjusted unanimously, then every set positioning and orientation system frame is not can guarantee
The rotary resistance of frame is consistent, and then will lead to unstable product quality, angular contact bearing damage.
Summary of the invention
The purpose of the invention is to overcome the shortcomings of above-mentioned background technique, and provide a kind of positioning and orientation system indexing machine
Structure angular contact bearing pretightning force adjusting method.
To achieve the goals above, technical solution of the present invention is as follows: a kind of positioning and orientation system indexing mechanism angular contact axis
Hold pretightning force adjusting method, the positioning and orientation system indexing mechanism includes outline border and inside casing, the outline border and the inside casing it
Between be flexibly connected by angular contact bearing and shaft, the position that the angular contact bearing is corresponded on the outline border is pressed with bearing end
Lid, the angular contact bearing pretightning force adjusting method the following steps are included:
1) the Internal and external cycle difference in height h of the angular contact bearing is measured；
2) the depth L1 of mounting surface of the cycle surface of the angular contact bearing to the outline border is measured；
3) the difference in height L2 between the step press-assembling surface and installation end face of the bearing (ball) cover before measurement assembly；
4) the step press-assembling surface of the bearing (ball) cover before match grinding assembly, match grinding amount are
5) manufacturing specification is the annular aluminum foil pad of 0.01mm thickness, and the outer diameter of the annular aluminum foil pad is less than the angular contact
The outer diameter of the outer ring of bearing, the internal diameter of the annular aluminum foil pad are greater than the internal diameter of the inner ring of the angular contact bearing；
6) at least one described annular aluminum foil pad is mounted on the end face of the angular contact bearing, and with the institute with milled
It states bearing (ball) cover to compress the annular aluminum foil pad, at this time the installation end face of the bearing (ball) cover and the outline border
The mounting surface fitting.
By first measuring the cycle surface of the Internal and external cycle difference in height h of angular contact bearing, angular contact bearing to the outline border
Difference in height L2 between the depth L1 of mounting surface and the step press-assembling surface of the bearing (ball) cover before assembly and installation end face, then
The step press-assembling surface of bearing (ball) cover before match grinding assembly, match grinding amount areAngular contact axis can be eliminated in this way
Foozle and bearing (ball) cover foozle, annular aluminum foil is finally added between angular contact bearing and bearing (ball) cover again
Pad can accurately adjust the pretightning force of angular contact bearing, entire angular contact by increasing and decreasing the number of annular aluminum foil pad in this way
Bearing pre-fastening adjusting method is easy to operate, bearing pre-fastening one that is at low cost, high-efficient and can guarantee each angular contact bearing
It causes, so as to improve the stability of product quality, reduces the probability of damage of angular contact bearing.
In the above scheme, the step (1) specifically:
The Internal and external cycle difference in height of 3 or more different locations of the angular contact bearing is measured simultaneously using digital display micrometric depth gauge
It is averaged to obtain h.By measuring the Internal and external cycle difference in height of 3 or more different locations and being averaged to obtain h, can reduce in this way
Measurement error.
In the above scheme, the step (2) specifically:
The cycle surface of the angular contact bearing of 3 or more different locations is measured described in using digital display micrometric depth gauge
The depth of mounting surface simultaneously is averaged to obtain L1.Pass through the outer ring end of the angular contact bearing of measurement 3 or more different locations
Face to the mounting surface depth and be averaged to obtain L1, measurement error can be reduced in this way.
In the above scheme, the step (3) specifically:
The step of the bearing (ball) cover before being measured the assembly of 3 or more different locations using digital display micrometric depth gauge is pressed
Face and installation end face between difference in height and be averaged to obtain L2.Pass through the axis before the assembly of measurement 3 or more different locations
Difference in height between the step press-assembling surface of socket end lid and installation end face simultaneously is averaged to obtain L2, can reduce measurement error in this way.
In the above scheme, the step (4) specifically:
Using the step press-assembling surface of the bearing (ball) cover before high precision plane grinding-in mill assembly, match grinding amount is
In the above scheme, the step (4) further include:
The step press-assembling surface of the bearing (ball) cover before match grinding assembly, is not more than the flatness of the step press-assembling surface
0.01mm.When the step press-assembling surface of match grinding bearing (ball) cover, makes the flatness of step press-assembling surface no more than 0.01mm, can improve in this way
Assembly precision.
The technical program is further comprising the steps of:
7) the rotation stiction m of the inside casing, the rotation stiction of such as described rotation stiction m and design are measured
Error ratio between M | M-m |/M < 10% is then qualified.By measuring the rotation stiction m of inside casing, to measure angle indirectly
The bearing pre-fastening of contact bearing, needed for capable of further assuring that the bearing pre-fastening of the angular contact bearing regulated reaches in this way
It is required that.
In the above scheme, the step (7) specifically:
Spring scale one end is hung on the inside casing, then pulls at the spring scale along the inside casing rotation direction with hand
The other end until the inside casing rotates, while recording the single revolution static friction of the inside casing shown on the spring scale
Power measures 6 times and is averaged to obtain the rotation stiction m of the inside casing, turn of such as described rotation stiction m and design
Error ratio between sound frictional force M | M-m |/M < 10% is then qualified.By measuring 6 times and being averaged to obtain inside casing
Stiction m is rotated, measurement error can be reduced in this way.
Technical solution provided by the invention has the benefit that
1, by first measuring the cycle surface of the Internal and external cycle difference in height h of angular contact bearing, angular contact bearing to the outline border
Mounting surface depth L1 and assembly before bearing (ball) cover step press-assembling surface and installation end face between difference in height L2, so
The step press-assembling surface of the bearing (ball) cover before match grinding assembly, match grinding amount are afterwardsAngular contact axis can be eliminated in this way
Foozle and bearing (ball) cover foozle, annular aluminum foil is finally added between angular contact bearing and bearing (ball) cover again
Pad can accurately adjust the pretightning force of angular contact bearing, entire angular contact by increasing and decreasing the number of annular aluminum foil pad in this way
Bearing pre-fastening adjusting method is easy to operate, bearing pre-fastening one that is at low cost, high-efficient and can guarantee each angular contact bearing
It causes, so as to improve the stability of product quality, reduces the probability of damage of angular contact bearing；
2, by measuring the Internal and external cycle difference in height of 3 or more different locations of angular contact bearing and being averaged to obtain h, this
Sample can reduce measurement error；
3, pass through the depth of the cycle surface of the angular contact bearing of measurement 3 or more different locations to the mounting surface 1a
It spends and is averaged to obtain L1, measurement error can be reduced in this way；
4, by between the step press-assembling surface of the bearing (ball) cover before the assembly of measurement 3 or more different locations and installation end face
Difference in height and be averaged to obtain L2, measurement error can be reduced in this way；
5, when the step press-assembling surface of match grinding bearing (ball) cover, make the flatness of step press-assembling surface no more than 0.01mm, such energy
Improve assembly precision；
6, by measuring the rotation stiction m of inside casing, to measure the bearing pre-fastening of angular contact bearing, such energy indirectly
Further assure that the bearing pre-fastening of the angular contact bearing regulated reaches necessary requirement；
7, by measuring 6 times and being averaged to obtain the rotation stiction m of inside casing, measurement error can be reduced in this way.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of positioning and orientation system indexing mechanism；
Fig. 2 is that Fig. 1 removes structural schematic diagram when measuring L1 after a bearing (ball) cover；
Fig. 3 is the partial enlargement structural representation in Fig. 2 at I；
Fig. 4 be II in Fig. 1 at partial enlargement structural representation；
Fig. 5 is the measurement structural representation of angular contact bearing；
Fig. 6 is the measurement structural representation of bearing (ball) cover；
Structural schematic diagram when Fig. 7 is positioning and orientation system indexing mechanism measurement rotation stiction.
In figure, outline border 1, mounting surface 1a, inside casing 2, angular contact bearing 3, shaft 4, bearing (ball) cover 5, step press-assembling surface 5a, peace
Fill end face 5b, annular aluminum foil pad 6, spring scale 7, fixture 8, test platform 9.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment 1:
A kind of positioning and orientation system indexing mechanism angular contact bearing pretightning force adjusting method is present embodiments provided, it is described fixed
Position orientation system indexing mechanism includes outline border 1 and inside casing 2, between the outline border 1 and the inside casing 2 by angular contact bearing 3 and
Shaft 4 is flexibly connected, and the position that the angular contact bearing 3 is corresponded on the outline border 1 is pressed with bearing (ball) cover 5, the angular contact
Bearing pre-fastening adjusting method the following steps are included:
1) the Internal and external cycle height of 3 or more different locations of the angular contact bearing 3 is measured using digital display micrometric depth gauge
Difference simultaneously is averaged to obtain h；
2) it is arrived using the cycle surface that digital display micrometric depth gauge measures 3 or more the angular contact bearings 3 of different location
The depth of the mounting surface 1a simultaneously is averaged to obtain L1；
3) step of the bearing (ball) cover 5 before 3 or more the assembly of different location is measured using digital display micrometric depth gauge
Press-assembling surface 5a and installation end face 5b between difference in height and be averaged to obtain L2；
4) using the step press-assembling surface 5a of the bearing (ball) cover 5 before high precision plane grinding-in mill assembly, match grinding amount isAnd make the flatness of the step press-assembling surface 5a no more than 0.01mm；
5) manufacturing specification is the annular aluminum foil pad 6 of 0.01mm thickness, and the outer diameter of the annular aluminum foil pad 6 is less than the corner connection
The outer diameter of the outer ring of contact bearing 3, the internal diameter of the annular aluminum foil pad 6 are greater than the internal diameter of the inner ring of the angular contact bearing 3；
6) at least one described annular aluminum foil pad 6 is mounted on the end face of the angular contact bearing 3, and with matching milled
The bearing (ball) cover 5 compresses the annular aluminum foil pad 6, at this time the installation end face 5b of the bearing (ball) cover 5 and institute
State the mounting surface 1a fitting of outline border 1；Wherein, the usage quantity of the annular aluminum foil pad 6 determine according to actual needs, with true
Protect each angular contact bearing 3 bearing pre-fastening it is consistent subject to；
7) 7 one end of spring scale is hung on the inside casing 2, then is pulled at along 2 rotation direction of inside casing with hand described
7 other end of spring scale until the inside casing 2 rotates, while recording the single of the inside casing 2 shown on the spring scale 7
Stiction is rotated, measure 6 times and is averaged to obtain the rotation stiction m of the inside casing 2, such as the rotation stiction
Error ratio between m and the rotation stiction M of design | M-m |/M < 10% is then qualified.When unqualified, repeat to walk
Rapid 3-6, until qualified.
The present embodiment is arrived by the first Internal and external cycle difference in height h of measurement angular contact bearing 3, the cycle surface of angular contact bearing 3
The step press-assembling surface 5a and installation end face 5b of bearing (ball) cover 5 before the depth L1 of the mounting surface 1a of the outline border 1 and assembly it
Between difference in height L2, then the step press-assembling surface 5a of the bearing (ball) cover 5 before match grinding assembly, match grinding amount isThe foozle of angular contact axis and the foozle of bearing (ball) cover can be eliminated in this way, finally again at angle
Annular aluminum foil pad 6 is added between contact bearing 3 and bearing (ball) cover 5, it in this way can be by increasing and decreasing the number of annular aluminum foil pad 6 come quasi-
Really adjust the pretightning force of angular contact bearing 3, entire angular contact bearing pretightning force adjusting method is easy to operate, at low cost, efficiency
It is high and can guarantee that the bearing pre-fastening of each angular contact bearing 3 is consistent, so as to improve the stability of product quality, reduce corner connection
The probability of damage of contact bearing 3.
Meanwhile the present embodiment is by measuring the Internal and external cycle difference in height of 3 or more different locations of angular contact bearing 3 and making even
Mean value obtains h, can reduce measurement error in this way；Pass through the outer ring end of the angular contact bearing 3 of measurement 3 or more different locations
Face to the mounting surface 1a depth and be averaged to obtain L1, measurement error can be reduced in this way；It is different by measurement 3 or more
Difference in height between the step press-assembling surface 5a of bearing (ball) cover 5 before the assembly of position and installation end face 5b simultaneously is averaged to obtain
L2 can reduce measurement error in this way.
Moreover, the present embodiment makes the flatness of step press-assembling surface 5a not in the step press-assembling surface 5a of match grinding bearing (ball) cover 5
Greater than 0.01mm, assembly precision can be improved in this way；By measuring the rotation stiction m of inside casing 2, to measure angular contact axis indirectly
3 bearing pre-fastening is held, required for capable of further assuring that the bearing pre-fastening of the angular contact bearing 3 regulated reaches in this way
It asks；By measuring 6 times and being averaged to obtain the rotation stiction m of inside casing 2, measurement error can be reduced in this way.
Embodiment 2:
Present embodiments provide a kind of pretightning force adjusting method of the angular contact bearing 3 of model 7012C-2RS, the corner connection
The rotation stiction M reference value of the design of contact bearing 3 is 260g.There are two angular contact bearing 3, two corner connections in the present embodiment
The pretightning force adjusting method of contact bearing 3 is the same, in the pretightning force adjusting method that this is specifically described an angular contact bearing 3, institute
Positioning and orientation system indexing mechanism where stating angular contact bearing 3 includes outline border 1 and inside casing 2, the outline border 1 and the inside casing 2
Between be flexibly connected by the angular contact bearing 3 and shaft 4, the position that the angular contact bearing 3 correspond on the outline border 1 is pressed
Equipped with bearing (ball) cover 5, the angular contact bearing pretightning force adjusting method the following steps are included:
1) the Internal and external cycle height of 3 or more different locations of the angular contact bearing 3 is measured using digital display micrometric depth gauge
Difference simultaneously is averaged to obtain h=0.02mm；
2) it is arrived using the cycle surface that digital display micrometric depth gauge measures 3 or more the angular contact bearings 3 of different location
The depth of the mounting surface 1a simultaneously is averaged to obtain L1=3.023mm；
3) step of the bearing (ball) cover 5 before 3 or more the assembly of different location is measured using digital display micrometric depth gauge
Press-assembling surface 5a and installation end face 5b between difference in height and be averaged to obtain L2=3.845mm；
4) using the step press-assembling surface 5a of the bearing (ball) cover 5 before high precision plane grinding-in mill assembly, match grinding amount is And make institute
The flatness of step press-assembling surface 5a is stated no more than 0.01mm；
5) manufacturing specification is the annular aluminum foil pad 6 of 0.01mm thickness, and the outer diameter of the annular aluminum foil pad 6 is less than the corner connection
The outer diameter of the outer ring of contact bearing 3, the internal diameter of the annular aluminum foil pad 6 are greater than the internal diameter of the inner ring of the angular contact bearing 3；
6) at least one described annular aluminum foil pad 6 is mounted on the end face of the angular contact bearing 3, and with matching milled
The bearing (ball) cover 5 compresses the annular aluminum foil pad 6, at this time the installation end face 5b of the bearing (ball) cover 5 and institute
State the mounting surface 1a fitting of outline border 1；Wherein, the usage quantity of the annular aluminum foil pad 6 determine according to actual needs, with true
Protect each angular contact bearing 3 bearing pre-fastening it is consistent subject to；The pretightning force of two angular contact bearings 3 in the present embodiment is all adjusted
(7) below step is carried out after section again；
7) the positioning and orientation system indexing mechanism assembled is mounted on test platform 9 by fixture 8, then by spring
7 one end of scale is hung on the inside casing 2, then pulls at 7 other end of spring scale along 2 rotation direction of inside casing with hand, directly
It is rotated to the inside casing 2, while recording the single revolution stiction of the inside casing 2 shown on the spring scale 7, measured
6 times and it is averaged to obtain the rotation stiction m=235g of the inside casing 2, the rotation of rotation the stiction m and design
Error ratio between stiction M | M-m |/M=| 260-235 |/260=0.09615 < 10% is qualified.When unqualified, weight
Step 3-6 is carried out again, until qualified.
The present embodiment is arrived by the first Internal and external cycle difference in height h of measurement angular contact bearing 3, the cycle surface of angular contact bearing 3
The step press-assembling surface 5a and installation end face 5b of bearing (ball) cover 5 before the depth L1 of the mounting surface 1a of the outline border 1 and assembly it
Between difference in height L2, then the step press-assembling surface 5a of the bearing (ball) cover 5 before match grinding assembly, match grinding amount isThe foozle of angular contact axis and the foozle of bearing (ball) cover can be eliminated in this way, finally again at angle
Annular aluminum foil pad 6 is added between contact bearing 3 and bearing (ball) cover 5, it in this way can be by increasing and decreasing the number of annular aluminum foil pad 6 come quasi-
Really adjust the pretightning force of angular contact bearing 3, entire angular contact bearing pretightning force adjusting method is easy to operate, at low cost, efficiency
It is high and can guarantee that the bearing pre-fastening of each angular contact bearing 3 is consistent, so as to improve the stability of product quality, reduce corner connection
The probability of damage of contact bearing 3.
Meanwhile the present embodiment is by measuring the Internal and external cycle difference in height of 3 or more different locations of angular contact bearing 3 and making even
Mean value obtains h, can reduce measurement error in this way；Pass through the outer ring end of the angular contact bearing 3 of measurement 3 or more different locations
Face to the mounting surface 1a depth and be averaged to obtain L1, measurement error can be reduced in this way；It is different by measurement 3 or more
Difference in height between the step press-assembling surface 5a of bearing (ball) cover 5 before the assembly of position and installation end face 5b simultaneously is averaged to obtain
L2 can reduce measurement error in this way.
Moreover, the present embodiment makes the flatness of step press-assembling surface 5a not in the step press-assembling surface 5a of match grinding bearing (ball) cover 5
Greater than 0.01mm, assembly precision can be improved in this way；By measuring the rotation stiction m of inside casing 2, to measure angular contact axis indirectly
3 bearing pre-fastening is held, required for capable of further assuring that the bearing pre-fastening of the angular contact bearing 3 regulated reaches in this way
It asks；By measuring 6 times and being averaged to obtain the rotation stiction m of inside casing 2, measurement error can be reduced in this way.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of positioning and orientation system indexing mechanism angular contact bearing pretightning force adjusting method, the positioning and orientation system indexing machine
Structure includes outline border (1) and inside casing (2), passes through angular contact bearing (3) and shaft (4) between the outline border (1) and the inside casing (2)
It is flexibly connected, the position that the angular contact bearing (3) is corresponded on the outline border (1) is pressed with bearing (ball) cover (5), and feature exists
In, the angular contact bearing pretightning force adjusting method the following steps are included:
1) the Internal and external cycle difference in height h of the angular contact bearing (3) is measured；
2) the depth L1 of mounting surface (1a) of the cycle surface of the angular contact bearing (3) to the outline border (1) is measured；
3) difference in height between the step press-assembling surface (5a) and installation end face (5b) of the bearing (ball) cover (5) before measurement assembly
L2；
4) the step press-assembling surface (5a) of the bearing (ball) cover (5) before match grinding assembly, match grinding amount are
5) manufacturing specification is the annular aluminum foil pad (6) of 0.01mm thickness, and the outer diameter of the annular aluminum foil pad (6) is less than the corner connection
The outer diameter of the outer ring of contact bearing (3), the internal diameter of the annular aluminum foil pad (6) are greater than the interior of the inner ring of the angular contact bearing (3)
Diameter；
6) at least one described annular aluminum foil pad (6) is mounted on the end face of the angular contact bearing (3), and with matching milled
The bearing (ball) cover (5) compresses the annular aluminum foil pad (6), at this time the installation end face of the bearing (ball) cover (5)
(5b) is bonded with the mounting surface (1a) of the outline border (1).
2. a kind of positioning and orientation system indexing mechanism angular contact bearing pretightning force adjusting method according to claim 1,
It is characterized in that, the step (1) specifically:
The Internal and external cycle difference in height of 3 or more different locations of the angular contact bearing (3) is measured simultaneously using digital display micrometric depth gauge
It is averaged to obtain h.
3. a kind of positioning and orientation system indexing mechanism angular contact bearing pretightning force adjusting method according to claim 1,
It is characterized in that, the step (2) specifically:
The cycle surface of the angular contact bearing (3) of 3 or more different locations is measured described in using digital display micrometric depth gauge
The depth of mounting surface (1a) simultaneously is averaged to obtain L1.
4. a kind of positioning and orientation system indexing mechanism angular contact bearing pretightning force adjusting method according to claim 1,
It is characterized in that, the step (3) specifically:
The step of the bearing (ball) cover (5) before being measured the assembly of 3 or more different locations using digital display micrometric depth gauge is pressed
Face (5a) and installation end face (5b) between difference in height and be averaged to obtain L2.
5. a kind of positioning and orientation system indexing mechanism angular contact bearing pretightning force adjusting method according to claim 1,
It is characterized in that, the step (4) specifically:
Using the step press-assembling surface (5a) of the bearing (ball) cover (5) before high precision plane grinding-in mill assembly, match grinding amount is
6. a kind of positioning and orientation system indexing mechanism angular contact bearing pretightning force adjusting method according to claim 1 or 5,
It is characterized in that, the step (4) further include:
The step press-assembling surface (5a) of the bearing (ball) cover (5) before match grinding assembly, makes the flatness of the step press-assembling surface (5a)
No more than 0.01mm.
7. a kind of positioning and orientation system indexing mechanism angular contact bearing pretightning force adjusting method according to claim 1,
It is characterized in that, further comprising the steps of:
7) the rotation stiction m of the inside casing (2), the rotation stiction M of such as described rotation stiction m and design are measured
Between error ratio | M-m |/M < 10%, then it is qualified.
8. a kind of positioning and orientation system indexing mechanism angular contact bearing pretightning force adjusting method according to claim 7,
It is characterized in that, the step (7) specifically:
Spring scale (7) one end is hung on the inside casing (2), then is pulled at along the inside casing (2) rotation direction with hand described
Spring scale (7) other end until the inside casing (2) rotate, while recording the inside casing shown on the spring scale (7)
(2) single revolution stiction measures 6 times and is averaged to obtain the rotation stiction m of the inside casing (2), such as described
Rotate the error ratio between stiction m and the rotation stiction M of design | M-m |/M < 10% is then qualified.
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| CN201910197968.0A CN109945767B (en) | 2019-03-15 | 2019-03-15 | Angular contact bearing pre-tightening force adjusting method for indexing mechanism of positioning and orienting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664577A (en) * | 2020-12-07 | 2021-04-16 | 河北汉光重工有限责任公司 | Stable platform bearing fixing structure and assembling and adjusting method |
| CN112664575A (en) * | 2020-12-07 | 2021-04-16 | 河北汉光重工有限责任公司 | Reliably-connected and adjustable bearing pre-tightening structure and assembling and adjusting method |
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| CN203156063U (en) * | 2013-01-31 | 2013-08-28 | 上海大众祥易机电技术有限公司 | Device used for regulating pretightening force of motorized spindle |
| CN103182534A (en) * | 2013-03-20 | 2013-07-03 | 北京工业大学 | Bidirectional pressure regulating pre-tensioner for electric spindle angular contact ball bearing |
| CN205209675U (en) * | 2015-12-07 | 2016-05-04 | 新昌县红利机械有限公司 | Measuring force device of test angular contact ball bearing pretightning force |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112664577A (en) * | 2020-12-07 | 2021-04-16 | 河北汉光重工有限责任公司 | Stable platform bearing fixing structure and assembling and adjusting method |
| CN112664575A (en) * | 2020-12-07 | 2021-04-16 | 河北汉光重工有限责任公司 | Reliably-connected and adjustable bearing pre-tightening structure and assembling and adjusting method |
| CN112664575B (en) * | 2020-12-07 | 2022-07-08 | 河北汉光重工有限责任公司 | Reliably-connected and adjustable bearing pre-tightening structure and assembling and adjusting method |
| CN112664577B (en) * | 2020-12-07 | 2022-09-02 | 河北汉光重工有限责任公司 | Stable platform bearing fixing structure and assembling and adjusting method |
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