CN107214662B - A kind of back-to-back taper roll bearing configuration calculation method - Google Patents
A kind of back-to-back taper roll bearing configuration calculation method Download PDFInfo
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- CN107214662B CN107214662B CN201710417868.5A CN201710417868A CN107214662B CN 107214662 B CN107214662 B CN 107214662B CN 201710417868 A CN201710417868 A CN 201710417868A CN 107214662 B CN107214662 B CN 107214662B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
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Abstract
The invention discloses a kind of back-to-back taper roll bearing configuration calculation method, the bearing outer ring spacer ring width of fixed bearing block (5) determines the preload of bearing by calculating the width of inner split ring (4).Present invention employs metering toolings and subtraction method, improve the inaccurate problem of the multi-measuring point of more measuring units；Using calculating axle sleeve and bearing interference volume, the influence of the interference volume of axle sleeve and axis to bearing pre-tightened solves the problems, such as to accurately calculate back-to-back taper roll bearing configuration preload；The computational methods of use are simple, science, effectively, solve the problems, such as back-to-back taper roll bearing configuration batch production.
Description
Technical field
The invention belongs to taper roll bearing technical fields, are related to a kind of back-to-back taper roll bearing configuration calculating side
Method.
Background technology
Currently, back-to-back taper roll bearing pre-tighten configuration method generally using measure respectively outer ring spacer ring and inner ring every
Ring removes the width of inner ring spacer ring or outer ring spacer ring according to preload amount, has the function that preloaded bearing.Commonsense method is not examined generally
Consider the radial interference fit relationship between bearing and axis, does not consider the radial interference fit relationship between bearing and axle sleeve, do not examine
The width for considering different bearings, the influence to the preload of back-to-back taper roll bearing, these can produce the carrying of bearing and service life
It is raw to influence.Commonsense method is difficult to meet the requirement of mass production, needs the width of multiple different location metering spacer ring, metering tired
It is difficult, cumbersome and inaccurate.
Invention content
(1) goal of the invention
The purpose of the present invention is：A kind of back-to-back taper roll bearing configuration calculation method is provided, is solved back to back cone
The preload problem of roller bearing configuration；The interference volume of solution axle sleeve and bearing interference volume, axle sleeve and axis matches taper roll bearing
The preload problem set；It solves to produce the metering and computational problem that back-to-back taper roll bearing configures in batches.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of back-to-back taper roll bearing configuration calculation method, institutes
Stating back-to-back taper roll bearing includes：Axis 1, axle sleeve 2, bearing A3, inner split ring 4, bearing block 5 and bearing B6；Axle sleeve 2 is assemblied in
On axis 1, bearing A3 and bearing B6 are assemblied on axle sleeve 2, and inner split ring 4 and 2, axle sleeve are assemblied between bearing A3 and bearing B6, axis
Bearing 5 is assemblied in bearing A3 and the outer rings bearing B6, and the spacer ring of bearing block 5 is between bearing A3 and bearing B6；Wherein, the meter
Calculation method includes the following steps：
Step 1：Design metering tooling
The metering tooling includes the bearing A3 of tooling sleeve 7, tooling core 8, screw 9 and back-to-back taper roll bearing
With bearing B6；Tooling sleeve 7 is sleeve-shaped, and tooling core 8 is column, and tooling sleeve 7 is inserted into 8 bottom of tooling core by 7 bottom of tooling sleeve
In centre bore, tooling sleeve 7 and tooling core 8 are fixed by screw 9；It is arranged installation axle outside tooling sleeve 7 and holds A3 and bearing B6；
Step 2：Measure inner ring difference L1
Based on the metering tooling in step 1, it is arranged outside tooling sleeve 7 with reference to inner split ring 10, is located at reference to inner split ring 10
Between bearing A3 and bearing B6；With reference to the width H of inner split ring 10, the screw-down torque of adjusting screw 9 is 1Nm, is counted after assembly for metering
Inner ring difference L1 is measured, inner ring difference L1 is distance of 7 top end surface of tooling sleeve to 8 bottom of tooling core；
Step 3：Measure outer ring difference L2
Based on the metering tooling in step 1, bearing block 5, the spacer ring of bearing block 5 are installed in bearing A3 and the outer rings bearing B6
Between bearing A3 and bearing B6；The screw-down torque of adjusting screw 9 is 1Nm, and outer ring difference L2, outer ring difference are measured after assembly
L2 is distance of 7 top end surface of tooling sleeve to 8 bottom of tooling core；
Step 4：Measure the width that back-to-back taper roll bearing configures inner split ring 4 between middle (center) bearing A3 and bearing B6
First, formula is obtained according to inner ring difference L1 in step 2 and step 3 and outer ring difference L2：H1=H-[(L1–L2)+
α], wherein α is the preload amount determined according to actual conditions, is the desired value of axial pretightening amount；
Next, measuring the flat of 1 overall diameter D1 of axis, 2 interior diameter D2 of axle sleeve, 2 overall diameter D3 of axle sleeve, bearing A3 and bearing B6
Equal internal diameter D4, can obtain：H2=2 × γ ×s [(D3–D4)+((D1–D2)×β)], wherein β is that 1 diameter of inner shaft reduces and axle sleeve 2
The increased ratio of overall diameter, γ are the coefficient of angularity of taper roll bearing；
Finally, according to above obtained H1, H2, determine that the width of inner split ring 4 is：He=H1+H2.
Wherein, in the step 1, the top of tooling sleeve 7 setting circumferential outer outstanding outward, bottom open up three it is parallel
In its axial threaded hole；Circumferential outer outstanding outward is arranged in 8 top of tooling core, and being arranged three on outer is parallel to its axial direction
The through-hole with counterbore；Screw 9 passes through through-hole and threaded hole to fix tooling sleeve 7 and tooling core 8.
Wherein, in the step 1, bearing A3, bearing B6 and tooling sleeve 7 are clearance fit.
Wherein, in the step 1, tooling sleeve 7 is clearance fit with tooling core 8.
Wherein, it is clearance fit with reference to inner split ring 10 and tooling sleeve 7 in the step 2.
Wherein, in the step 4, α values are 0.02~0.05.
Wherein, in the step 4, β values are that 0.5~0.8, γ values are 1.2~1.8.
Wherein, in the step 4, the width He of the inner split ring 4 is the value with the margin of tolerance, the width of inner split ring 4
It is worked into this margin of tolerance, you can continue assembling link, complete back-to-back taper roll bearing configuration work.
(3) advantageous effect
The back-to-back taper roll bearing configuration calculation method that above-mentioned technical proposal is provided has following remarkable result：
1) present invention employs metering tooling and subtraction method, the inaccuracy of the multi-measuring point of more measuring units is improved
Problem；
2) present invention is using calculating axle sleeve and bearing interference volume, the influence of the interference volume of axle sleeve and axis to bearing pre-tightened, solution
It has determined and has accurately calculated back-to-back taper roll bearing configuration preload problem；
3) computational methods that use of the present invention are simple, science, effectively, solve back-to-back taper roll bearing configuration batch
Production problem.
Description of the drawings
Fig. 1 be the invention solves back-to-back taper roll bearing structural schematic diagram；
Fig. 2 is the tooling schematic diagram for measuring inner ring difference L1；
Fig. 3 is the tooling schematic diagram for measuring outer ring difference L2；
Fig. 4 is with reference to inner split ring schematic diagram；
Fig. 5 is with reference to tooling sleeve schematic diagram；
Fig. 6 is with reference to tooling core schematic diagram；
In figure：1. axis；2. axle sleeve；3. bearing A；4. inner split ring；5. bearing block；6. bearing B；7. tooling sleeve；8. tooling core；
9. screw；10. referring to inner split ring.
Specific implementation mode
To keep the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to the tool of the present invention
Body embodiment is described in further detail.
The present invention carry out back-to-back taper roll bearing configuration calculation method include a set of metering tooling, a reference it is interior every
Ring.Because back-to-back taper roll bearing configuration outer ring spacer and cone spacer type are various, the present invention only illustrates a kind of structure type,
He is similar.The invention further relates to an outer bearing carrier, an axle sleeve and an axis.Taper roller inner ring is assemblied in metering tooling
On, in order to which the screw-down torque that preloaded bearing tightens screw is 1Nm, the size inner ring difference L1 in tooling is measured, bearing outer ring
It is assemblied on bearing block, bearing is assemblied in metering tooling, and the screw-down torque for tightening screw is 1Nm, measures the size in tooling
Outer ring difference L2；Measure axis overall diameter D1, axle sleeve interior diameter D2, axle sleeve overall diameter D3, two sets of bearing mean inside diameter D4 and reference
The width H of inner split ring.The corresponding inner split ring width He of this group part is determined by the empirical coefficient in formula and formula, this
Group part includes：One outer bearing carrier (determining outer spacer ring width), an axle sleeve, an axis and two sets of bearings, that is, complete a set of
Back-to-back taper roll bearing configuration.
Specifically, as shown in Figure 1, the present embodiment carry out the configuration of back-to-back taper roll bearing calculate be related to it is back-to-back
Taper roll bearing includes：Axis 1, axle sleeve 2, bearing A3, inner split ring 4, bearing block 5 and bearing B6；2 general elastic conjunction of axle sleeve in
On axis 1, if it is clearance fit, respective calculated is negative value, bearing A 3 and the general elastic conjunctions of bearing B6 on axle sleeve 2, such as
Fruit is clearance fit, and respective calculated is negative value, and inner split ring 4 and 2, axle sleeve are assemblied between bearing A3 and bearing B6, bearing block
5 are assemblied in bearing A3 and the outer rings bearing B6, and the spacer ring of bearing block 5 is between bearing A3 and bearing B6.By adjusting inner split ring 4
Width and the width of bearing block 5 corresponding outer spacer ring determine the preload of bearing A3 and bearing B6, it is under normal circumstances, fixed outer
4 width of spacer ring width adjustment inner split ring, the width of correct inner split ring 4 determine the preload amount of bearing, determine the function of bearing group
With the service life.
The back-to-back taper roll bearing configuration calculation method of the present embodiment includes the following steps：
Step 1：Design metering tooling
With reference to shown in Fig. 2 and Fig. 3, metering tooling includes tooling sleeve 7, tooling core 8, screw 9, bearing A3 and bearing B6；Work
Encapsulation 7 is sleeve-shaped, and circumferential outer outstanding, bottom open up three and be parallel to its axial threaded hole outward for top setting；
Tooling core 8 is column, and circumferential outer outstanding outward is arranged in top, and being arranged three on outer is parallel to its axial band counterbore
Through-hole；8 bottom of tooling core is inserted by 7 bottom of tooling sleeve in the centre bore of tooling sleeve 7, and through-hole and screw thread are passed through by screw 9
Tooling sleeve 7 and tooling core 8 are fixed in hole；It is arranged installation axle outside tooling sleeve 7 and holds A3 and bearing B6.
Bearing A3, bearing B6 and tooling sleeve 7 are clearance fit, and tooling sleeve 7 is clearance fit with tooling core 8.
Step 2：Measure inner ring difference L1
As shown in Fig. 2, based on the metering tooling in step 1, it is arranged outside tooling sleeve 7 with reference to inner split ring 10, with reference to interior
Spacer ring 10 is between bearing A3 and bearing B6.
As shown in figure 4, metering is the measurement accuracy of H with reference to the width H ± a, a of inner split ring 10, it can be true according to actual conditions
It is fixed.It is clearance fit with reference to inner split ring 10 and tooling sleeve 7.
The screw-down torque of adjusting screw 9 be 1Nm, after assembly measure inner ring difference L1, tolerance value determines according to actual conditions,
Inner ring difference L1 be as in Fig. 27 top end surface of tooling sleeve to the distance of 8 bottom of tooling core.
Step 3：Measure outer ring difference L2
As shown in figure 3, based on the metering tooling in step 1, bearing block 5, bearing are installed in bearing A3 and the outer rings bearing B6
The spacer ring of seat 5 is between bearing A3 and bearing B6.The screw-down torque of adjusting screw 9 is 1Nm, and outer ring difference is measured after assembly
L2, tolerance value determines according to actual conditions, outer ring difference L2 be as in Fig. 37 top end surface of tooling sleeve to 8 bottom of tooling core away from
From.
Step 4：Measure the width that back-to-back taper roll bearing configures inner split ring 4 between middle (center) bearing A3 and bearing B6
First, formula is obtained according to inner ring difference L1 in step 2 and step 3 and outer ring difference L2：H1=H-[(L1–L2)+
α], wherein α is the preload amount determined according to actual conditions, is the desired value of axial pretightening amount, and α values are 0.02~0.05,
The value of (L1-L2) subtracts theoretical inner split ring (i.e. equal to the width H with reference to inner split ring 10：Inner split ring 4) width, i.e. H-[(L1–
L2)]Value be equal to the value of theoretical inner split ring width, so not determining the value of H1 with reference to the width value H of inner split ring 10, H1 is equal to reason
Preload amount α is subtracted by the width of inner split ring.The method solves bearing inner race width, bearing outer ring width, inner split ring, outer spacer ring
Etc. the accuracy problems of the multi-measuring point of more measuring units.
As shown in Figure 5,6, respectively the structure chart of tooling sleeve 7 and tooling core 8, the design of this two tooling are only to measure inner ring
The value of difference L1 and outer ring difference L2 because this programme it is desirable that L1 and L2 difference, this difference counteracts tooling sleeve 7 and work
The specific size precision that cored 8 itself manufactures and designs has obtained theoretical inner split ring width value, has disappeared dexterously by relation of equality
Influence in addition to manufacturing and designing dimensional accuracy.
Next, measuring the flat of 1 overall diameter D1 of axis, 2 interior diameter D2 of axle sleeve, 2 overall diameter D3 of axle sleeve, bearing A3 and bearing B6
Equal internal diameter D4, can obtain：H2=2 × γ ×s [(D3–D4)+((D1–D2)×β)], wherein β is that 1 diameter of inner shaft reduces and axle sleeve 2
The increased ratio of overall diameter, γ are the coefficient of angularity of taper roll bearing, and β values are that 0.5~0.8, γ values are 1.2~1.8,
β and γ is empirical coefficient, can be determines according to actual conditions.
Finally, according to above obtained H1, H2, determine that the width of inner split ring 4 is：He=H1+H2, He are that a band is public
The width of inner split ring 4 is worked into this margin of tolerance by the value of poor range, you can is continued assembling link, is completed configuration work.
The present invention is suitable for the configuration of back-to-back taper roll bearing and calculates.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of back-to-back taper roll bearing configuration calculation method, the back-to-back taper roll bearing include：Axis (1), axis
Cover (2), bearing A (3), inner split ring (4), bearing block (5) and bearing B (6)；Axle sleeve (2) is assemblied on axis (1), bearing A (3) and
Bearing B (6) is assemblied on axle sleeve (2), inner split ring (4) be located above axle sleeve (2) and be assemblied in bearing A (3) and bearing B (6) it
Between, bearing block (5) is assemblied in bearing A (3) and bearing B (6) outer ring, and the spacer ring of bearing block (5) is located at bearing A (3) and bearing B
(6) between；It is characterized in that, the computational methods include the following steps：
Step 1：Design metering tooling
The metering tooling includes the bearing A of tooling sleeve (7), tooling core (8), screw (9) and back-to-back taper roll bearing
(3) and bearing B (6)；Tooling sleeve (7) is sleeve-shaped, and tooling core (8) is column, and tooling core (8) bottom is by tooling sleeve (7) bottom
It is inserted into the centre bore of tooling sleeve (7), it is by screw (9) that tooling sleeve (7) and tooling core (8) is fixed；Tooling sleeve (7) outer cover
If installing bearing A (3) and bearing B (6)；
Step 2：Measure inner ring difference L1
Based on the metering tooling in step 1, it is arranged with reference to inner split ring (10) outside tooling sleeve (7), with reference to inner split ring (10) position
Between bearing A (3) and bearing B (6)；Metering refers to the width H of inner split ring (10), and the screw-down torque of adjusting screw (9) is
1Nm, measures inner ring difference L1 after assembly, inner ring difference L1 is distance of tooling sleeve (7) top end surface to tooling core (8) bottom；
Step 3：Measure outer ring difference L2
Based on the metering tooling in step 1, bearing block (5) is installed in bearing A (3) and bearing B (6) outer ring, bearing block (5)
Spacer ring is located between bearing A (3) and bearing B (6)；The screw-down torque of adjusting screw (9) is 1Nm, and outer ring difference is measured after assembly
L2, outer ring difference L2 are distance of tooling sleeve (7) top end surface to tooling core (8) bottom；
Step 4：Measure the width of inner split ring (4) between back-to-back taper roll bearing configuration middle (center) bearing A (3) and bearing B (6)
First, formula is obtained according to inner ring difference L1 in step 2 and step 3 and outer ring difference L2：H1=H-[(L1–L2)+α],
Wherein, α is the preload amount determined according to actual conditions, is the desired value of axial pretightening amount；
Next, metering axis (1) overall diameter D1, axle sleeve (2) interior diameter D2, axle sleeve (2) overall diameter D3, bearing A (3) and bearing B
(6) mean inside diameter D4, can obtain：H2=2 × γ ×s [(D3–D4)+((D1–D2)×β)], wherein β reduces for axis (1) diameter
With the increased ratio of axle sleeve (2) overall diameter, γ is the coefficient of angularity of taper roll bearing；
Finally, according to above obtained H1, H2, determine that the width of inner split ring (4) is：He=H1+H2.
2. back-to-back taper roll bearing configuration calculation method as described in claim 1, which is characterized in that the step 1
In, circumferential outer outstanding, bottom open up three and are parallel to its axial threaded hole outward for setting at the top of tooling sleeve (7)；Tooling
Circumferential outer outstanding outward is set at the top of core (8), and being arranged three on outer is parallel to its axial through-hole with counterbore；Screw
(9) pass through through-hole and threaded hole that tooling sleeve (7) and tooling core (8) is fixed.
3. back-to-back taper roll bearing configuration calculation method as described in claim 1, which is characterized in that the step 1
In, bearing A (3), bearing B (6) they are clearance fit with tooling sleeve (7).
4. back-to-back taper roll bearing configuration calculation method as claimed in claim 3, which is characterized in that the step 1
In, tooling sleeve (7) is clearance fit with tooling core (8).
5. back-to-back taper roll bearing configuration calculation method as described in claim 1, which is characterized in that the step 2
In, it is clearance fit with reference to inner split ring (10) and tooling sleeve (7).
6. back-to-back taper roll bearing configuration calculation method as claimed in claim 2, which is characterized in that the step 4
In, α values are 0.02~0.05.
7. back-to-back taper roll bearing configuration calculation method as claimed in claim 6, which is characterized in that the step 4
In, β values are that 0.5~0.8, γ values are 1.2~1.8.
8. back-to-back taper roll bearing configuration calculation method as claimed in claim 7, which is characterized in that the step 4
In, the width He of the inner split ring (4) is the value with the margin of tolerance, the width of inner split ring (4) is worked into this margin of tolerance, i.e.,
It can continue assembling link, complete back-to-back taper roll bearing configuration work.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710417868.5A CN107214662B (en) | 2017-06-06 | 2017-06-06 | A kind of back-to-back taper roll bearing configuration calculation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710417868.5A CN107214662B (en) | 2017-06-06 | 2017-06-06 | A kind of back-to-back taper roll bearing configuration calculation method |
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| CN107214662B true CN107214662B (en) | 2018-10-26 |
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| CN201710417868.5A Active CN107214662B (en) | 2017-06-06 | 2017-06-06 | A kind of back-to-back taper roll bearing configuration calculation method |
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| CN107968513A (en) * | 2017-12-28 | 2018-04-27 | 南京磁谷科技有限公司 | The pre-fastening structure to protecting bearing is added in a kind of magnetic suspension motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4910846A (en) * | 1988-01-22 | 1990-03-27 | Volvo Hydraulik Ab | Method of adjusting the axial play between a journalled shaft and a surrounding bearing casing |
| CN101113940A (en) * | 2007-06-13 | 2008-01-30 | 贵州力源液压股份有限公司 | Method and device for measuring serial pairing gap of single-row conical bearing |
| CN101761584A (en) * | 2010-02-08 | 2010-06-30 | 成都科华重型轴承有限公司 | High rigidity installation method of rolling bearing and novel structure of bearing |
-
2017
- 2017-06-06 CN CN201710417868.5A patent/CN107214662B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4910846A (en) * | 1988-01-22 | 1990-03-27 | Volvo Hydraulik Ab | Method of adjusting the axial play between a journalled shaft and a surrounding bearing casing |
| CN101113940A (en) * | 2007-06-13 | 2008-01-30 | 贵州力源液压股份有限公司 | Method and device for measuring serial pairing gap of single-row conical bearing |
| CN101761584A (en) * | 2010-02-08 | 2010-06-30 | 成都科华重型轴承有限公司 | High rigidity installation method of rolling bearing and novel structure of bearing |
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| CN107214662A (en) | 2017-09-29 |
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