CN106441195B - A kind of block stator external diameter computing device and its computational methods based on magnitude of interference equivalent substitution principle - Google Patents
A kind of block stator external diameter computing device and its computational methods based on magnitude of interference equivalent substitution principle Download PDFInfo
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- CN106441195B CN106441195B CN201610909025.2A CN201610909025A CN106441195B CN 106441195 B CN106441195 B CN 106441195B CN 201610909025 A CN201610909025 A CN 201610909025A CN 106441195 B CN106441195 B CN 106441195B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
Abstract
The present invention relates to a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle and its computational methods, the defect for being difficult to detect block stator external diameter value under the effect of corresponding radial load is solved compared with prior art.The inner diameter hole of cup dolly of the present invention is ramp structure and internal diameter of the internal diameter more than lower surface of cup dolly upper surface, canonical measure sample cylinder base is round platform inverted structure, the axial centre of canonical measure sample cylinder base is hollow structure, the inner diameter hole of canonical measure sample cylinder base is ramp structure and internal diameter of the internal diameter more than lower surface of canonical measure sample cylinder base upper surface, canonical measure sample cylinder base is placed in cup dolly and when canonical measure sample cylinder base is placed in cup dolly, and gap is produced between canonical measure sample cylinder base and circular bottom plate.The present invention is capable of detecting when external diameter value of the block stator under the effect of corresponding radial load, so as to solve the evaluation problem of block stator and the true magnitude of interference of water channel housing.
Description
Technical field
It is specifically a kind of former based on magnitude of interference equivalent substitution the present invention relates to severe hybrid power automobile technical field
The block stator external diameter computing device and its computational methods of reason.
Background technology
The problems such as with global energy crisis, environmental pollution, becomes increasingly conspicuous, and new-energy automobile turns into domestic and international motor corporation
The emphasis of development.But it is due to that pure electric automobile course continuation mileage is short, the limiting factor such as battery life is short, hybrid vehicle turns into
The development priority of each motor corporation.In China, severe hybrid power automobile has advantageous development condition and wide
Application prospect.
Due to severe hybrid power automobile on the one hand to automotive performance require it is very strict, another aspect motor also by
The limitation of space arrangement is arrived, offline and obtain higher copper factor for convenience, stator must make sectional type.Such as Fig. 1 institutes
Show, because the overall structure of stator is spliced by monolithic stator, the radial load applied in a circumferential direction is different, and piecemeal is fixed
The external diameter of son is also just different, so that the true external diameter value of block stator can not be obtained, also can not just assess block stator and water channel
Whether the magnitude of interference of housing meets design requirement.If the actual magnitude of interference of block stator and water channel housing is inadequate, in motor fortune
In capable process, the axial moving of rotor, rotor is, by magnetic, axially will to be applied to one axial direction of block stator
Power, long-term tired axial force may result in block stator and be come off with water channel housing and separates, and considerably increase the wind of motor failure
Danger.
The overall structure of block stator is spliced by monolithic stator, and it leads to not detect true external diameter, also with regard to nothing
Method assesses block stator and the true magnitude of interference of water channel housing.Therefore, how to develop block stator and meet corresponding radial direction masterpiece
The technical problem for being badly in need of solving is had become with the computing device and its computational methods of its lower external diameter.
The content of the invention
The invention aims to solve to be difficult to detection block stator in the prior art under the effect of corresponding radial load outside
The defect of footpath value there is provided a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle and its computational methods come
Solve the above problems.
To achieve these goals, technical scheme is as follows：
A kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle, including circular bottom plate and be arranged on
Cup dolly in circular bottom plate,
The inner diameter hole of the cup dolly is more than the internal diameter of lower surface for ramp structure and the internal diameter of cup dolly upper surface,
Canonical measure sample cylinder base is round platform inverted structure, and the axial centre of canonical measure sample cylinder base is hollow structure, canonical measure sample cylinder
The inner diameter hole of seat is more than the internal diameter of lower surface, canonical measure sample cylinder for ramp structure and the internal diameter of canonical measure sample cylinder base upper surface
Seat is placed in cup dolly and when canonical measure sample cylinder base is placed in cup dolly, canonical measure sample cylinder base and circular base
Gap is produced between plate；
Block stator mounting assembly is placed in canonical measure sample cylinder base, and block stator mounting assembly includes support block and upper
Raggle block, support block is divided into cylinder and lower cylinder from top to bottom, and upper cylinder and lower cylinder are structure as a whole, upper cylinder
The external diameter of body is less than the external diameter of lower cylinder, and the external diameter of lower cylinder is than the small 0.5- of canonical measure sample cylinder base internal diameter minimum value
1.5mm, the external diameter of upper cylinder is identical with the inner diameter values of standard stator sample block, and the external diameter of upper raggle block is than in canonical measure sample cylinder base
The small 0.5-1.5mm of footpath minimum value；
Hollow bolt is installed through the circle centre position of raggle block and the circle centre position of support block, and upper raggle block is located at the upper of support block
Side, the vertical range of upper raggle block to lower cylinder is identical with the thickness of standard stator sample block, standard stator sample block or piecemeal to be measured
Stator is placed between raggle block and lower cylinder and around upper cylinder arrangement, and bolt is arranged on the inner diameter hole of hollow bolt
On.
The external diameter of described lower cylinder is than the canonical measure sample cylinder base small 1mm of internal diameter minimum value, and the external diameter of upper raggle block is than mark
The small 1mm of locating tab assembly sample cylinder base internal diameter minimum value.
The bus of the canonical measure sample cylinder base inner surface and the angle of canonical measure sample cylinder base bottom surface are 45 degree.
The internal diameter maximum of the canonical measure sample cylinder base is than the standard stator sample block big 0.02mm of largest outside diameter tolerance value, mark
The internal diameter minimum value of locating tab assembly sample cylinder base is than the small 0.02mm of standard stator sample block minimum outer diameter tolerance value.
The height in the gap is more than the thickness of standard stator sample block.
A kind of computational methods of the block stator external diameter computing device based on magnitude of interference equivalent substitution principle, including following step
Suddenly：
The setting of calculating parameter, the upper internal diameter for being marked with quasi- test specimens cylinder base is that D1, lower internal diameter are D2, and piecemeal to be measured is determined
The outside dimension of son is D0；
Calculate the magnitude of interference size in torsion F1 active force subscript certainly increment block press-in；
Calculate the magnitude of interference size of the block stator press-in to be measured under torsion F1 active force；
The calculating of block stator external diameter to be measured, is pressed into identical interference magnitude relation according to identical torque value and extrapolates to be measured point
The external diameter value of block stator.
Described measuring and calculating comprises the following steps in the magnitude of interference size of torsion F1 active force subscript certainly increment block press-in：
Standard stator sample block is arranged between upper raggle block and support block, torsion F1 is applied on bolt；
The external diameter value of standard stator sample block is D, and the lower surface of standard testing sample cylinder base is calculated using difference in height calculating method
Lower surface difference in height with standard stator sample block is h1；
Calculate under torsion F1 active force, the magnitude of interference size δ 1 of standard stator sample block press-in, its calculation formula is as follows：
δ1=2×（D/2-（h1×tan45°+D2/2））,
Wherein, D is the external diameter value of standard stator sample block, and h1 is the lower surface and standard stator sample block of standard testing sample cylinder base
Lower surface difference in height, D2 be standard testing sample cylinder base lower internal diameter.
Described measuring and calculating magnitude of interference size of block stator press-in to be measured under torsion F1 active force comprises the following steps：
Block stator to be measured is arranged between upper raggle block and support block, torsion F1 is applied on bolt；
The lower surface height of the lower surface and standard stator sample block of block stator to be measured is calculated using difference in height calculating method
Difference is h2；
Calculate under torsion F1 active force, the magnitude of interference δ 2 of block stator press-in to be measured, its calculation formula is as follows：
δ2=2×（D0/2-（h2×tan45°+D2/2））,
Wherein, D0 is the outside dimension of block stator to be measured, h2 is block stator to be measured lower surface and standard stator sample
The lower surface difference in height of block, the lower internal diameter that D2 is standard testing sample cylinder base.
The calculating of block stator external diameter to be measured comprises the following steps：
Identical interference magnitude relation is pressed into according to identical torque value to obtain, thus 1=δ of δ 2 extrapolate：
D0=D-2 × h1 × tan45 °+2 × h2 × tan45 °,
Wherein, D is the external diameter value of standard stator sample block, h1 is standard testing sample cylinder base lower surface and standard stator sample block
Lower surface difference in height, h2 for block stator to be measured lower surface and standard stator sample block lower surface difference in height；
3 different torque value Fa, Fb and Fc are set, block stator to be measured produced by torque value Fa, Fb and Fc is obtained
External diameter value D0a, D0b and D0c；
Calculate external diameter value D0a, D0b and D0c of block stator to be measured average value, the external diameter value D0a of block stator to be measured,
D0b and D0c average value is the external diameter value of block stator to be measured.
The difference in height calculating method comprises the following steps：
The vertical drop for being marked with quasi- test specimens cylinder base upper surface and lower surface is H；
The upper surface of raggle block and the difference in height A1 of the lower surface of standard stator sample block or the upper raggle block of calculating upper table in calculating
The difference in height of face and the lower surface of block stator to be measured is A2；
Under torsion F1 active force, the difference in height that the upper surface of upper raggle block declines is h0, then：
The lower surface difference in height h1 calculation formula of the lower surface of standard testing sample cylinder base and standard stator sample block are as follows：
h1=（H+h0-A1）；
Or
The lower surface difference in height of the lower surface of block stator to be measured and standard stator sample block is as follows for h2 calculation formula：
h2=（H+h0-A2）.
Beneficial effect
A kind of the block stator external diameter computing device and its computational methods based on magnitude of interference equivalent substitution principle of the present invention,
External diameter value of the block stator under the effect of corresponding radial load is capable of detecting when compared with prior art, so as to solve block stator
With the evaluation problem of the true magnitude of interference of water channel housing, correct theoretical foundation is provided for the reliability of motor.
The present invention is by applying different torque value sizes to device, first with standard stator sample block, standard testing sample cylinder
The distance that plane declines on the taper and upper raggle block of seat, the standard stator sample block extrapolated under different torque value sizes is surveyed with standard
The magnitude of interference of sample cylinder base, block stator to be measured is calculated further according to the range measurement that plane declines on upper raggle block under identical torque value
External diameter under different torque values.
By the detection method of the present invention, the true external diameter value of block stator to be measured is calculated, is determined so as to calculate piecemeal
The magnitude of interference of son and water channel housing, compared with the design magnitude of interference of product field frame assembly., can be with if being unsatisfactory for design requirement
Extrapolating the external diameter design tolerance value of block stator needs to be adjusted according to actual product processing situation, finally makes product stator
The block stator of assembly meets with the magnitude of interference of water channel housing and required, and then ensures the reliability and security of motor.
Brief description of the drawings
Fig. 1 is stator in the prior art and the assembly structure figure of water channel housing；
Fig. 2 is the longitudinal sectional view of device in the present invention；
Fig. 3 does not install the exploded perspective figure of standard stator sample block additional for device in the present invention；
Fig. 4 is the method precedence diagram of Computational Methods of the present invention；
Wherein, 1- circular bottom plates, 2- cup dollies, 3- canonical measure samples cylinder base, 4- hollow bolts, 5- bolts, cover on 6-
Cylinder, the upper cylinders of 11- under block, 7- standard stator samples block, 8- support blocks, 9- gaps, 10-.
Embodiment
To make to have a better understanding and awareness to architectural feature of the invention and the effect reached, to preferably
Embodiment and accompanying drawing coordinate detailed description, are described as follows：
As shown in Figures 2 and 3, a kind of block stator external diameter meter based on magnitude of interference equivalent substitution principle of the present invention
Device, including circular bottom plate 1 and the cup dolly 2 in circular bottom plate 1 are calculated, cup dolly 2 can be installed by bolt
In circular bottom plate 1, cup dolly 2 is traditional hollow structure, former by the magnitude of interference equivalent substitution produced in Automatic manual transmission
Reason extrapolates the actual outside diameter of 24 pieces of splicing stators indirectly.
The inner diameter hole of cup dolly 2 is ramp structure, and the internal diameter of the upper surface of cup dolly 2 is more than the internal diameter of lower surface, i.e.,
The inner diameter hole of cup dolly 2 is design wide at the top and narrow at the bottom.Canonical measure sample cylinder base 3 is round platform inverted structure, is inverted round platform,
But the axial centre of canonical measure sample cylinder base 3 is that there is also inner diameter hole for hollow structure, i.e. canonical measure sample cylinder base 3.Canonical measure
The inner diameter hole of sample cylinder base 3 is also ramp structure, and the internal diameter of the same upper surface of canonical measure sample cylinder base 3 is more than the internal diameter of lower surface,
The inner diameter hole of canonical measure sample cylinder base 3 is also design wide at the top and narrow at the bottom.Canonical measure sample cylinder base 3 be placed in cup dolly 2 and
When canonical measure sample cylinder base 3 is placed in cup dolly 2, gap 9 is produced between canonical measure sample cylinder base 3 and circular bottom plate 1.
Because canonical measure sample cylinder base 3 is used in measurement process, by axial force（Above-below direction）Switch to radial load（Left and right directions）,
Therefore it produces gap 9 in the state of being placed in cup dolly 2 between circular bottom plate 1, and the height in gap 9 is best
More than the thickness of standard stator sample block 7, in order in the measurement process of standard stator sample block 7, support block 8 possess it is abundant under
Between sounding.
Block stator mounting assembly is placed in canonical measure sample cylinder base 3, and block stator mounting assembly includes the He of support block 8
Upper raggle block 6, support block 8 and upper raggle block 6 are used to use spacing above and below the progress of the block stator of standard stator sample block 7 or to be measured.Branch
Bracer 8 is used to place the block stator of standard stator sample block 7 or to be measured, and support block 8 is divided into cylinder 11 and lower circle from top to bottom
Cylinder 10, upper cylinder 11 and lower cylinder 10 are structure as a whole, and the external diameter of upper cylinder 11 is less than the external diameter of lower cylinder 10,
Upper cylinder 11 is in plateau form on lower cylinder 10.As shown in Fig. 2 the block stator of standard stator sample block 7 or to be measured is installed
When, it is directly installed on lower cylinder 10, the block stator of standard stator sample block 7 or to be measured is arranged around upper cylinder 11.Therefore,
The external diameter of lower cylinder 10 preferably descends the external diameter ratio of cylinder 10 than the small 0.5-1.5mm of internal diameter minimum value of canonical measure sample cylinder base 3
The small 1mm of internal diameter minimum value of canonical measure sample cylinder base 3, that is, descend cylinder 10 not contacted with canonical measure sample cylinder base 3, block stator peace
Arrangement by the cooperation between the block stator of standard stator sample block 7 or to be measured and canonical measure sample cylinder base 3 installed thereon and
Carry out spacing.
The external diameter of upper cylinder 11 is identical with the inner diameter values of standard stator sample block 7, i.e., for standard stator sample block 7 or to be measured
Block stator is used around upper cylinder 11 arrangement.Similarly, the external diameter of upper raggle block 6 is than the internal diameter minimum value of canonical measure sample cylinder base 3
Small 0.5-1.5mm, the external diameter of preferably upper raggle block 6 is than the small 1mm of internal diameter minimum value of canonical measure sample cylinder base 3, and it is also for realization
Upper raggle block 6 is not contacted with canonical measure sample cylinder base 3 so that block stator mounting assembly passes through the standard stator sample block installed thereon
Cooperation between 7 or to be measured block stators and canonical measure sample cylinder base 3 and carry out spacing.
Hollow bolt 4 is installed through the circle centre position of raggle block 6 and the circle centre position of support block 8, and upper raggle block 6 is located at support block
8 top, the vertical range of upper raggle block 6 to lower cylinder 10 is identical with the thickness of standard stator sample block 7, and hollow bolt 4 will be upper
Raggle block 6 and support block 8 are fixedly installed togather, while the block stator of standard stator sample block 7 or to be measured is placed on raggle block 6 with
Arranged between cylinder 10 and around upper cylinder 11, so as to be determined standard upper raggle block 6 and support block 8 by hollow bolt 4
Increment block 7 or block stator to be measured carry out longitudinal direction（Above-below direction）It is spacing.Bolt 5 is arranged on the inner diameter hole of hollow bolt 4,
Now swivel bolt 5 can then drive whole block stator mounting assembly to move, and due to the piecemeal of standard stator sample block 7 or to be measured
Stator has been capped block 6 and support block 8 has carried out longitudinal spacing, therefore in the case of applying certain torsion for bolt 5 herein,
So that torsion is converted into the identical magnitude of interference.
The theoretical principle that identical torque value is pressed into the identical magnitude of interference is as follows：
When being applied on bolt 5 power vertically downward, by the transmission of power, perpendicular acting is in standard testing sample cylinder
On the internal diameter curved surface of seat 3.It is mutual mechanics principle according to the effect of the action effect of power and power, standard testing sample cylinder base 3 is anti-
Act on the block stator of standard stator sample block 7 or to be measured 2 effect power of generation, 1 power be used for vertically upward with gravity and
The power of application balances each other, and another is exactly that horizontal radial power produces the magnitude of interference, and this model can be equivalent to the principle of Hookean spring,
According to power and the proportional relation of displacement, you can show that identical torque value is pressed into the theoretical principle of the identical magnitude of interference.
Due to the inclined-plane of the endoporus of canonical measure sample cylinder base 3 in calculating process, need to be calculated, therefore calculate, mark for convenience
The bus of the inner surface of locating tab assembly sample cylinder base 3 can be designed as 45 degree with the angle of the bottom surface of canonical measure sample cylinder base 3, so in interference
Measure in size calculation procedure, tan45 ° of value can directly be 1, reduce computation complexity.Similarly, canonical measure sample cylinder base 3
Internal diameter maximum can be than the big 0.02mm of largest outside diameter tolerance value of standard stator sample block 7, the internal diameter of canonical measure sample cylinder base 3 is most
Small value can as far as possible reduce the bolt 5 when calculating than the small 0.02mm of minimum outer diameter tolerance value of standard stator sample block 7, this measure
Number of revolutions.
As shown in figure 4, also providing a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle herein
Computational methods, comprise the following steps：
The first step, the setting of calculating parameter.The upper internal diameter for being marked with quasi- test specimens cylinder base 3 is that D1, lower internal diameter are D2, is treated
The outside dimension for surveying block stator is D0.
Second step, the magnitude of interference size that the active force subscript certainly increment block 7 calculated in torsion F1 is pressed into.First with standard
The distance that plane declines on stator sample block 7, the taper of standard testing sample cylinder base 3 and upper raggle block 6, extrapolates different torque value sizes
（Torsion F1）Under standard stator sample block 7 and standard testing sample cylinder base 3 the magnitude of interference, further according to identical torque value（Torsion F1）Under
The range measurement that plane declines on upper raggle block 6 calculates external diameter of the block stator to be measured under different torque values.Its specific steps is such as
Under：
（1）Standard stator sample block 7 is arranged between upper raggle block 6 and support block 8, i.e., by hollow bolt 4 from the upper He of raggle block 6
Taken out in support block 8, standard stator sample block 7 is mounted between upper raggle block 6 and support block 8, by hollow bolt 4 by upper raggle block 6
With support block 8 to spacing above and below the progress of standard stator sample block 7, the upper raggle block 6 after installing, support block 8 and mark will be finally combined
Certainly increment block 7 is placed in standard testing sample cylinder base 3.Torsion F1 is applied on bolt 5, torsion F1 can use torsion to pull
Hand sets a specific value and will be applied on bolt 5.
（2）The external diameter value of standard stator sample block 7 is D, is calculated using difference in height calculating method under standard testing sample cylinder base 3
The lower surface difference in height of surface and standard stator sample block 7 is h1.Difference in height calculating method not only can be designed that standard testing sample cylinder
The lower surface of seat 3 is h1 with the lower surface difference in height of standard stator sample block 7, can also use equally convenient calculate in piecemeal to be measured
The lower surface of stator is h2 with the lower surface difference in height of standard stator sample block 7.Difference in height calculating method calculates standard testing sample cylinder base 3
Lower surface and standard stator sample block 7 lower surface difference in height for shown in the comprising the following steps that of h1：
A, the quasi- upper surface of test specimens cylinder base 3 of bidding and lower surface vertical drop are H.
The difference in height A1 of the lower surface of the upper surface of raggle block 6 and standard stator sample block 7 on B, calculating, direct measurement is drawn i.e.
Can.
C, under torsion F1 active force, the difference in height that the upper surface of upper raggle block 6 declines is h0.Raggle block 6 is upper in observation
Eaily method is can to design graduated scale near the upper surface of standard testing sample cylinder base 3 to the difference in height that surface declines, directly
Connect observation graduated scale.
The lower surface difference in height h1 calculation formula of the lower surface of standard testing sample cylinder base 3 and standard stator sample block 7 are as follows：
h1=（H+h0-A1）.
（3）Calculate under torsion F1 active force, the magnitude of interference size δ 1 that standard stator sample block 7 is pressed into, its calculation formula
It is as follows：
δ1=2×（D/2-（h1×tan45°+D2/2））,
Wherein, D is the external diameter value of standard stator sample block 7, and h1 is the lower surface and standard stator sample of standard testing sample cylinder base 3
The lower surface difference in height of block 7, D2 is the lower internal diameter of standard testing sample cylinder base 3.
3rd step, calculates the magnitude of interference size of the block stator press-in to be measured under torsion F1 active force, with same torsion
Power F1, calculates the magnitude of interference size of block stator press-in to be measured.It is comprised the following steps that：
（1）Block stator to be measured is used same method is installed installed in upper raggle block 6 and support with standard stator sample block 7
Between block 8, and it is same in the application torsion F1 on bolt 5.
（2）Under the same lower surface and standard stator sample block 7 that block stator to be measured is calculated using difference in height calculating method
Surface height difference is h2, and it is comprised the following steps that：
A, the quasi- upper surface of test specimens cylinder base 3 of bidding and lower surface vertical drop are H；
The difference in height of the upper surface of raggle block 6 and the lower surface of block stator to be measured is A2 on B, calculating；
C, under torsion F1 active force, the difference in height that the upper surface of upper raggle block 6 declines is h0, then：
The lower surface difference in height of the lower surface of block stator to be measured and standard stator sample block 7 is as follows for h2 calculation formula：
h2=（H+h0-A2）.
（3）Calculate under torsion F1 active force, the magnitude of interference δ 2 of block stator press-in to be measured, its calculation formula is as follows：
δ2=2×（D0/2-（h2×tan45°+D2/2））,
Wherein, D0 is the outside dimension of block stator to be measured, h2 is block stator to be measured lower surface and standard stator sample
The lower surface difference in height of block 7, the lower internal diameter that D2 is standard testing sample cylinder base 3.
4th step, the calculating of block stator external diameter to be measured is pressed into identical interference magnitude relation according to identical torque value and calculated
Go out the external diameter value of block stator to be measured.It is comprised the following steps that：
（1）Identical interference magnitude relation is pressed into according to identical torque value to obtain, thus 1=δ of δ 2 extrapolate：
D0=D-2 × h1 × tan45 °+2 × h2 × tan45 °,
Wherein, D is the external diameter value of standard stator sample block 7, h1 is standard testing sample cylinder base 3 lower surface and standard stator sample
The lower surface difference in height of block 7, h2 are the lower surface of block stator to be measured and the lower surface difference in height of standard stator sample block 7.
（2）3 different torque value Fa, Fb and Fc are set, torque value Fa, Fb and Fc can be obtained by D0 calculation formula
External diameter value D0a, D0b and D0c of produced block stator to be measured.
（3）External diameter value D0a, D0b and D0c of block stator to be measured average value are calculated, three values are carried out except average meter
Calculate, external diameter value D0a, D0b and D0c of block stator to be measured average value are then the external diameter value of block stator to be measured, that is, meet mark
Certainly under conditions of the magnitude of interference of increment block 7, the true external diameter value of block stator to be measured.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and that described in above-described embodiment and specification is the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appended claims and its
Equivalent is defined.
Claims (10)
1. a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle, including circular bottom plate (1) and installation
Cup dolly (2) in circular bottom plate (1), it is characterised in that：
The inner diameter hole of the cup dolly (2) is ramp structure and the internal diameter of cup dolly (2) upper surface is more than the interior of lower surface
Footpath, canonical measure sample cylinder base (3) is round platform inverted structure, and the axial centre of canonical measure sample cylinder base (3) is hollow structure, standard
The inner diameter hole of sample cylinder base (3) is measured for ramp structure and the internal diameter of canonical measure sample cylinder base (3) upper surface is more than the interior of lower surface
Footpath, canonical measure sample cylinder base (3) is placed in cup dolly (2) and when canonical measure sample cylinder base (3) is placed on cup dolly (2)
When interior, gap (9) are produced between canonical measure sample cylinder base (3) and circular bottom plate (1)；
Block stator mounting assembly is placed in canonical measure sample cylinder base (3), block stator mounting assembly include support block (8) and
Upper raggle block (6), support block (8) is divided into cylinder (11) and lower cylinder (10), upper cylinder (11) and lower circle from top to bottom
Cylinder (10) is structure as a whole, and the external diameter of upper cylinder (11) is less than outside the external diameter of lower cylinder (10), lower cylinder (10)
Footpath is than canonical measure sample cylinder base (3) the small 0.5-1.5mm of internal diameter minimum value, external diameter and the standard stator sample block of upper cylinder (11)
(7) inner diameter values are identical, and the external diameter of upper raggle block (6) is than canonical measure sample cylinder base (3) the small 0.5-1.5mm of internal diameter minimum value；
Hollow bolt (4) is installed through the circle centre position of raggle block (6) and the circle centre position of support block (8), and upper raggle block (6) is located at branch
The top of bracer (8), the vertical range of upper raggle block (6) to lower cylinder (10) is identical with the thickness of standard stator sample block (7), mark
Certainly increment block (7) or block stator to be measured are placed between raggle block (6) and lower cylinder (10) and around upper cylinder
(11) arrange, bolt (5) is arranged on the inner diameter hole of hollow bolt (4).
2. a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle according to claim 1, its
It is characterised by：The external diameter of described lower cylinder (10) is than canonical measure sample cylinder base (3) the small 1mm of internal diameter minimum value, upper raggle block (6)
External diameter than canonical measure sample cylinder base (3) the small 1mm of internal diameter minimum value.
3. a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle according to claim 1, its
It is characterised by：The bus of canonical measure sample cylinder base (3) inner surface and the angle of canonical measure sample cylinder base (3) bottom surface are 45
Degree.
4. a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle according to claim 1, its
It is characterised by：The internal diameter maximum of the canonical measure sample cylinder base (3) is bigger than standard stator sample block (7) largest outside diameter tolerance value
0.02mm, the internal diameter minimum value of canonical measure sample cylinder base (3) is than standard stator sample block (7) the small 0.02mm of minimum outer diameter tolerance value.
5. a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle according to claim 1, its
It is characterised by：The height of the gap (9) is more than the thickness of standard stator sample block (7).
6. a kind of meter of block stator external diameter computing device based on magnitude of interference equivalent substitution principle according to claim 3
Calculation method, it is characterised in that comprise the following steps：
61) setting of calculating parameter, the upper internal diameter for being marked with quasi- test specimens cylinder base (3) is that D1, lower internal diameter are D2, piecemeal to be measured
The outside dimension of stator is D0；
62) magnitude of interference size of the measuring and calculating in torsion F1 active force subscript certainly increment block (7) press-in；
63) magnitude of interference size of measuring and calculating block stator press-in to be measured under torsion F1 active force；
64) calculating of block stator external diameter to be measured, is pressed into identical interference magnitude relation according to identical torque value and extrapolates to be measured point
The external diameter value of block stator.
7. a kind of meter of block stator external diameter computing device based on magnitude of interference equivalent substitution principle according to claim 6
Calculation method, it is characterised in that the magnitude of interference big parcel of the described measuring and calculating in torsion F1 active force subscript certainly increment block press-in
Include following steps：
71) standard stator sample block (7) is arranged between upper raggle block (6) and support block (8), torsion F1 is applied to bolt (5)
On；
72) the external diameter value of standard stator sample block (7) is D, is calculated using difference in height calculating method under standard testing sample cylinder base (3)
The lower surface difference in height of surface and standard stator sample block (7) is h1；
73) calculate under torsion F1 active force, the magnitude of interference size δ 1 of standard stator sample block (7) press-in, its calculation formula is such as
Under：
δ 1=2 × (D/2- (h1 × tan45 ° of+D2/2)),
Wherein, D is the external diameter value of standard stator sample block (7), and h1 is the lower surface and standard stator sample of standard testing sample cylinder base (3)
The lower surface difference in height of block (7), D2 is the lower internal diameter of standard testing sample cylinder base (3).
8. a kind of meter of block stator external diameter computing device based on magnitude of interference equivalent substitution principle according to claim 6
Calculation method, it is characterised in that the big parcel of the magnitude of interference of described measuring and calculating block stator press-in to be measured under torsion F1 active force
Include following steps：
81) block stator to be measured is arranged between upper raggle block (6) and support block (8), torsion F1 is applied on bolt (5)；
82) lower surface that the lower surface and standard stator sample block (7) of block stator to be measured are calculated using difference in height calculating method is high
Degree difference is h2；
83) calculate under torsion F1 active force, the magnitude of interference δ 2 of block stator press-in to be measured, its calculation formula is as follows：
δ 2=2 × (D0/2- (h2 × tan45 ° of+D2/2)),
Wherein, D0 is the outside dimension of block stator to be measured, h2 is block stator to be measured lower surface and standard stator sample block (7)
Lower surface difference in height, D2 be standard testing sample cylinder base (3) lower internal diameter.
9. a kind of meter of block stator external diameter computing device based on magnitude of interference equivalent substitution principle according to claim 6
Calculation method, it is characterised in that the calculating of block stator external diameter to be measured comprises the following steps：
91) it is pressed into identical interference magnitude relation according to identical torque value to obtain, thus δ 1=δ 2 extrapolate：
D0=D-2 × h1 × tan45 °+2 × h2 × tan45 °,
Wherein, D is the external diameter value of standard stator sample block (7), h1 is standard testing sample cylinder base (3) lower surface and standard stator sample
The lower surface difference in height of block (7), h2 are the lower surface of block stator to be measured and the lower surface difference in height of standard stator sample block (7)；
92) 3 different torque value Fa, Fb and Fc are set, the outer of block stator to be measured produced by torque value Fa, Fb and Fc is obtained
Footpath value D0a, D0b and D0c；
93) external diameter value D0a, D0b and D0c of calculating block stator to be measured average value, the external diameter value D0a of block stator to be measured,
D0b and D0c average value is the external diameter value of block stator to be measured.
10. a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle according to claim 7 or 8
Computational methods, it is characterised in that the difference in height calculating method comprises the following steps：
101) vertical drop for being marked with quasi- test specimens cylinder base (3) upper surface and lower surface is H；
102) upper surface of upper raggle block (6) and the difference in height A1 of the lower surface of standard stator sample block (7) or the upper raggle block of calculating are calculated
(6) difference in height of upper surface and the lower surface of block stator to be measured is A2；
103) under torsion F1 active force, the difference in height that the upper surface of upper raggle block (6) declines is h0, then：
The lower surface difference in height h1 calculation formula of the lower surface of standard testing sample cylinder base (3) and standard stator sample block (7) are as follows：
H1=(H+h0-A1)；
Or
The lower surface difference in height h2 calculation formula of the lower surface of block stator to be measured and standard stator sample block (7) are as follows：
H2=(H+h0-A2).
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| KR101214185B1 (en) * | 2010-12-13 | 2012-12-21 | 한국생산기술연구원 | Measuring Apparatus For Measuring Outer Diameter Of Object Using Displacement Sensor |
| CN103604348A (en) * | 2013-10-18 | 2014-02-26 | 泰信电机(苏州)有限公司 | Motor stator core inner circle detection device |
| CN204007430U (en) * | 2014-07-23 | 2014-12-10 | 台州市突突电机有限公司 | A kind of stator pick-up unit |
| CN204007429U (en) * | 2014-07-23 | 2014-12-10 | 台州市突突电机有限公司 | Motor stator internal-and external diameter sample work piece |
| CN203949608U (en) * | 2014-07-23 | 2014-11-19 | 台州市突突电机有限公司 | Stator inner and outer diameter measurement device |
| CN206192317U (en) * | 2016-10-18 | 2017-05-24 | 合肥工业大学 | Comprises a workbench, |
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