CN106441195A - Block stator external diameter calculation apparatus based on interference equivalent substitution principle, and calculation method thereof - Google Patents

Block stator external diameter calculation apparatus based on interference equivalent substitution principle, and calculation method thereof Download PDF

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Publication number
CN106441195A
CN106441195A CN201610909025.2A CN201610909025A CN106441195A CN 106441195 A CN106441195 A CN 106441195A CN 201610909025 A CN201610909025 A CN 201610909025A CN 106441195 A CN106441195 A CN 106441195A
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China
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block
stator
external diameter
standard
sample
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CN201610909025.2A
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Chinese (zh)
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CN106441195B (en
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严刚
王淑旺
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合肥工业大学
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Publication of CN106441195B publication Critical patent/CN106441195B/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups
    • G01B21/10Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups for measuring diameters

Abstract

The invention relates to a block stator external diameter calculation apparatus based on an interference equivalent substitution principle, and a calculation method thereof, for solving the defect of difficulty in detecting an external diameter value of a block stator under a corresponding radial load effect compared to the prior art. An internal-diameter hole of a circular base is of an inclined-plane structure, the internal diameter of the upper surface of the circular base is greater than the internal diameter of the lower surface, a standard measurement sample cylinder seat is of a truncated cone inverted structure, the axial center of the standard measurement sample cylinder seat is of a hollow structure, the internal-diameter hole of the standard measurement sample cylinder seat is of an inclined-surface structure, the internal diameter of the upper surface of the standard measurement sample cylinder seat is greater than the internal diameter of the lower surface, the standard measurement sample cylinder seat is placed in the circular base, when the standard measurement sample cylinder seat is placed in the circular base, a gap is generated between the standard measurement sample cylinder seat and a circular base plate. According to the invention, the external diameter value of the block stator under the corresponding radial load effect can be detected, and the problem of evaluating real interference between the block stator and a water channel housing is solved.

Description

A kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle and its Computational methods
Technical field
The present invention relates to severe hybrid power automobile technical field, specifically a kind of former based on magnitude of interference equivalent substitution The block stator external diameter computing device of reason and its computational methods.
Background technology
Become increasingly conspicuous with the problems such as global energy crisis, environmental pollution, new-energy automobile becomes domestic and international motor corporation The emphasis of development.But because pure electric automobile course continuation mileage is short, the limiting factor such as battery life is short, hybrid vehicle becomes The development priority of each motor corporation.In China, severe hybrid power automobile has advantageous development condition and wide Application prospect.
Because severe hybrid power automobile one side requires very strictly to automotive performance, another aspect motor is also subject to Arrive the restriction of space arrangement, offline and obtain higher copper factor for convenience, stator must make sectional type.As Fig. 1 institute Show, because the overall structure of stator is to be spliced by monolithic stator, the radial force applying in a circumferential direction is different, and piecemeal is fixed The external diameter of son is also just different, thus the true external diameter value of block stator cannot be obtained, also just cannot assess block stator and water channel Whether the magnitude of interference of housing meets design requirement.If block stator is inadequate with the actual magnitude of interference of water channel housing, in motor fortune In the process of row, the axial direction of rotor is collected together, and rotor is by magnetic, axially will be applied to one axial direction of block stator Power, long-term tired axial force, may result in block stator and come off with water channel housing and separate, considerably increase the wind of motor failure Danger.
The overall structure of block stator is to be spliced by monolithic stator, and it leads to not detect true external diameter, also just no Method assessment block stator and the true magnitude of interference of water channel housing.Therefore, how to develop block stator and meet corresponding radial direction masterpiece Have become as the technical problem being badly in need of solving with the computing device and its computational methods of its external diameter lower.
Content of the invention
The invention aims to being difficult in solution prior art detect that block stator is outer under corresponding radial force acts on Footpath value defect, provide a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle and its computational methods Lai 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 circle Cup dolly on base plate,
The inner diameter hole of described cup dolly is that the internal diameter of ramp structure and cup dolly upper surface is more than the internal diameter of lower surface, standard Measurement 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 base Inner diameter hole is that the internal diameter of ramp structure and canonical measure sample cylinder base upper surface is more than the internal diameter of lower surface, and canonical measure sample cylinder base is put Put in cup dolly and when canonical measure sample cylinder base is placed in cup dolly, canonical measure sample cylinder base and circular bottom plate it Between produce gap;
Block stator mounting assembly is placed in canonical measure sample cylinder base, and block stator mounting assembly includes support block and Shang Gai Block, support block is divided into cylinder and lower cylinder, upper cylinder and lower cylinder to be structure as a whole from top to bottom, upper cylinder External diameter be less than down cylindrical external diameter, under cylindrical external diameter 0.5-1.5mm less than canonical measure sample cylinder base internal diameter minima, Upper cylindrical external diameter is identical with the inner diameter values of standard stator sample block, and the external diameter of upper raggle block is more minimum than canonical measure sample cylinder base internal diameter It is worth little 0.5-1.5mm;
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 top of support block, Upper raggle block under cylindrical vertical dimension identical with the thickness of standard stator sample block, standard stator sample block or block stator to be measured It is placed between raggle block and lower cylinder and around upper cylinder arrangement, bolt is arranged on the inner diameter hole of hollow bolt.
Cylindrical external diameter 1mm less than canonical measure sample cylinder base internal diameter minima under described, the external diameter of upper raggle block is than mark The little 1mm of locating tab assembly sample cylinder base internal diameter minima.
The bus of described 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 0.02mm bigger than standard stator sample block largest outside diameter tolerance value of described canonical measure sample cylinder base, mark The internal diameter minima 0.02mm less than standard stator sample block minimum outer diameter tolerance value of locating tab assembly sample cylinder base.
The height in described 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, walk including following Suddenly:
The setting of calculating parameter, the upper internal diameter being marked with quasi- test specimens cylinder base is D1, lower internal diameter is D2, block stator to be measured Outside dimension is D0;
The magnitude of interference size of the active force subscript certainly increment block press-in in torsion F1 for the measuring and calculating;
The magnitude of interference size of measuring and calculating block stator press-in to be measured under the active force of torsion F1;
The calculating of block stator external diameter to be measured, extrapolates piecemeal to be measured according to identical torque value press-in identical interference magnitude relation fixed The external diameter value of son.
The magnitude of interference size of the active force subscript certainly increment block press-in in torsion F1 for the described measuring and calculating comprises the following steps:
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, calculates lower surface and the mark of standard testing sample cylinder base using difference in height calculating method The lower surface difference in height of certainly increment block is h1;
Calculate under the active force of torsion F1, magnitude of interference size δ 1 of standard stator sample block press-in, its computing 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 under the lower surface and standard stator sample block of standard testing sample cylinder base Surface height difference, D2 is the lower internal diameter of standard testing sample cylinder base.
Described measuring and calculating magnitude of interference size of block stator press-in to be measured under the active force of torsion F1 comprises the following steps:
Block stator to be measured is arranged between upper raggle block and support block, torsion F1 is applied on bolt;
Calculate the lower surface of block stator to be measured using difference in height calculating method and the lower surface difference in height of standard stator sample block is h2;
Calculate under the active force of torsion F1, the magnitude of interference δ 2 of block stator press-in to be measured, its computing formula is as follows:
δ2=2×(D0/2-(h2×tan45°+D2/2)),
Wherein, D0 be the outside dimension of block stator to be measured, h2 be block stator to be measured lower surface and standard stator sample block Lower surface difference in height, D2 are the lower internal diameter of standard testing sample cylinder base.
The calculating of block stator external diameter to be measured comprises the following steps:
It is pressed into identical interference magnitude relation according to identical torque value to obtain, δ 1=δ 2, thus extrapolate:
D0=D-2 × h1 × tan45 °+2 × h2 × tan45 °,
Wherein, D is under the lower surface and standard stator sample block of standard testing sample cylinder base for the external diameter value of standard stator sample block, h1 Surface height difference, h2 are the lower surface of block stator to be measured and the lower surface difference in height of standard stator sample block;
Setting 3 different torque value Fa, Fb and Fc, obtain the external diameter of block stator to be measured produced by torque value Fa, Fb and Fc Value D0a, D0b and D0c;
Calculate external diameter value D0a, D0b of block stator to be measured and the meansigma methodss of D0c, external diameter value D0a, D0b of block stator to be measured Meansigma methodss with D0c are the external diameter value of block stator to be measured.
Described difference in height calculating method comprises the following steps:
The vertical drop being marked with quasi- test specimens cylinder base upper surface with lower surface is H;
In calculating difference in height A1 of lower surface of the upper surface of raggle block and standard stator sample block or calculate the upper surface of upper raggle block with The difference in height of the lower surface of block stator to be measured is A2;
Under the active force of torsion F1, the difference in height that the upper surface of upper raggle block declines is h0, then:
The lower surface of standard testing sample cylinder base is as follows with the lower surface difference in height h1 computing formula of standard stator sample block:
h1=(H+h0-A1);
Or
The lower surface of block stator to be measured is that h2 computing formula is as follows with the lower surface difference in height of standard stator sample block:
h2=(H+h0-A2).
Beneficial effect
A kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle of the present invention and its computational methods, with now Technology is had to compare the external diameter value being capable of detecting when block stator under corresponding radial force acts on, thus solving block stator and water The evaluation problem of the true magnitude of interference of road housing, is that the reliability of motor provides correct theoretical foundation.
The present invention by different torque value sizes are applied to device, first with standard stator sample block, standard testing sample cylinder The distance that on the taper of seat and upper raggle block, plane declines, the standard stator sample block extrapolated under different torque value sizes is surveyed with standard The magnitude of interference of sample cylinder base, the range measurement declining further according to plane on raggle block upper under identical torque value calculates block stator to be measured External diameter under different torque values.
By the detection method of the present invention, calculate the true external diameter value of block stator to be measured, thus it is fixed to calculate piecemeal Son and the magnitude of interference of water channel housing, compared with the design magnitude of interference of product field frame assembly.If being unsatisfactory for design requirement, permissible The external diameter design tolerance value extrapolating block stator needs to be adjusted according to actual product processing situation, finally makes product stator The block stator of assembly meets requirement with the magnitude of interference of water channel housing, and then ensures reliability and the safety of motor.
Brief description
Fig. 1 is the assembly structure figure of stator and water channel housing in prior art;
Fig. 2 is the longitudinal sectional view of device in the present invention;
Fig. 3 is the exploded perspective figure that in the present invention, device does not install standard stator sample block additional;
Fig. 4 is the method precedence diagram of Computational Methods of the present invention;
Wherein, 1- circular bottom plate, 2- cup dolly, 3- canonical measure sample cylinder base, 4- hollow bolt, 5- bolt, the upper raggle block of 6-, 7- Standard stator sample block, 8- support block, 9- gap, cylinder, the upper cylinder of 11- under 10-.
Specific embodiment
Effect for making the architectural feature to the present invention and reached has a better understanding and awareness, in order to preferably Embodiment and accompanying drawing cooperation detailed description, are described as follows:
As shown in Figures 2 and 3, a kind of block stator external diameter based on magnitude of interference equivalent substitution principle of the present invention calculates dress Put, including circular bottom plate 1 and the cup dolly 2 being arranged in circular bottom plate 1, cup dolly 2 can be arranged on circle by bolt On shape base plate 1, cup dolly 2 is traditional hollow structure, by between the magnitude of interference equivalent substitution principle that produces in mechanical assembly Connect the actual outside diameter extrapolating 24 pieces of splicing stators.
The inner diameter hole of cup dolly 2 is ramp structure, and the internal diameter of cup dolly 2 upper surface is more than the internal diameter of lower surface, that is, 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 hollow structure, that is, canonical measure sample cylinder base 3 there is also inner diameter hole.Canonical measure The inner diameter hole of sample cylinder base 3 is also ramp structure, and the internal diameter of same canonical measure sample cylinder base 3 upper surface 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, between canonical measure sample cylinder base 3 and circular bottom plate 1, produce gap 9. Because canonical measure sample cylinder base 3 is in measurement process, by axial force(Above-below direction)Switch to radial force(Left and right directions), Therefore it, in the state of being placed in cup dolly 2, produces gap 9 and circular bottom plate 1 between, and the height in gap 9 is best More than the thickness of standard stator sample block 7, in order to in standard stator sample block 7 measurement process, support block 8 have abundant under Between sounding.
Block stator mounting assembly is placed in canonical measure sample cylinder base 3, and block stator mounting assembly includes support block 8 He Upper raggle block 6, support block 8 and upper raggle block 6 are used for carrying out spacing use up and down to standard stator sample block 7 or to be measured block stator.? Bracer 8 is used for placing standard stator sample block 7 or to be measured block stator, 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 standard stator sample block 7 or to be measured block stator is installed When, it is directly installed on lower cylinder 10, standard stator sample block 7 or to be measured block stator is arranged around upper cylinder 11.Therefore, The external diameter 0.5-1.5mm less than canonical measure sample cylinder base 3 internal diameter minima of lower cylinder 10, preferably descends the external diameter ratio of cylinder 10 The little 1mm of canonical measure sample cylinder base 3 internal diameter minima, that is, descend cylinder 10 not contact with canonical measure sample cylinder base 3, and block stator is pacified Arrangement by the cooperation between the standard stator sample block 7 or to be measured block stator installed thereon and canonical measure sample cylinder base 3 and Carry out spacing.
The external diameter of upper cylinder 11 is identical with the inner diameter values of standard stator sample block 7, that is, be used for standard stator sample block 7 or to be measured Block stator is arranged around upper cylinder 11 and is used.In the same manner, the external diameter of upper raggle block 6 is than canonical measure sample cylinder base 3 internal diameter minima Little 0.5-1.5mm, preferably goes up the external diameter 1mm less than canonical measure sample cylinder base 3 internal diameter minima of raggle block 6, 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 dimension 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, simultaneously standard stator sample block 7 or block stator to be measured be placed on raggle block 6 with Arrange between cylinder 10 and around upper cylinder 11, thus will be fixed to standard to 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)Spacing.Bolt 5 is arranged on the inner diameter hole of hollow bolt 4, Now swivel bolt 5 then can drive whole block stator mounting assembly motion, and due to standard stator sample block 7 or to be measured piecemeal Stator has been capped block 6 and support block 8 has carried out longitudinal spacing, in the case that therefore here applies certain torsion for bolt 5, Torsion is made to be 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 base 3 Internal diameter curved surface on.The effect of the action effect according to power and power is mutual mechanics principle, standard testing sample cylinder base 3 retroaction 2 effect power are produced on standard stator sample block 7 or to be measured block stator, 1 power is used for and gravity and applying vertically upward Power balance each other, 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 canonical measure sample cylinder base 3 endoporus in calculating process, need to be calculated, therefore calculate for convenience, mark The bus of locating tab assembly sample cylinder base 3 inner surface can be designed as 45 degree, so in interference with the angle of canonical measure sample cylinder base 3 bottom surface In amount size calculation procedure, tan45 ° of value can be directly 1, reduces computation complexity.In the same manner, canonical measure sample cylinder base 3 Internal diameter maximum can 0.02mm bigger than standard stator sample block 7 largest outside diameter tolerance value, the internal diameter of canonical measure sample cylinder base 3 is Little value can 0.02mm less than standard stator sample block 7 minimum outer diameter tolerance value, this measure can reduce the bolt 5 when calculating as far as possible Number of revolutions.
As shown in figure 4, here also provides a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle Computational methods, comprise the following steps:
The first step, the setting of calculating parameter.The upper internal diameter being marked with quasi- test specimens cylinder base 3 is D1, lower internal diameter is D2, to be measured point The outside dimension of block stator is D0.
Second step, the magnitude of interference size of active force subscript certainly increment block 7 press-in in torsion F1 for the measuring and calculating.First with standard The distance that on stator sample block 7, the taper of standard testing sample cylinder base 3 and upper raggle block 6, plane declines, 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 on upper raggle block 6, plane declines calculates external diameter under different torque values for the block stator to be measured.Its concrete steps is such as Under:
(1)Standard stator sample block 7 is arranged between upper raggle block 6 and support block 8, will hollow bolt 4 from upper raggle block 6 and support Take out on block 8, standard stator sample block 7 is contained between upper raggle block 6 and support block 8, by upper raggle block 6 and propped up by hollow bolt 4 Bracer 8 standard stator sample block 7 is carried out spacing up and down, finally will combination install after upper raggle block 6, support block 8 and standard fixed Increment block 7 is placed in standard testing sample cylinder base 3.Torsion F1 is applied on bolt 5, torsion F1 can be set using torque spanner A fixed specific value will be applied on bolt 5.
(2)The external diameter value of standard stator sample block 7 is D, is calculated under standard testing sample cylinder base 3 using difference in height calculating method Surface is h1 with the lower surface difference in height of standard stator sample block 7.Difference in height calculating method not only can design standard testing sample cylinder The lower surface of seat 3 and the lower surface difference in height of standard stator sample block 7 are h1, can also be calculated in piecemeal to be measured using equally convenient 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 The lower surface difference in height of lower surface and standard stator sample block 7 be shown in the comprising the following steps that of h1:
The vertical drop of A, quasi- test specimens cylinder base 3 upper surface of bidding and lower surface is H.
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 draws i.e. Can.
C, under the active force of torsion F1, the difference in height that the upper surface of upper raggle block 6 declines is h0.In observation, raggle block 6 is upper Eaily method is can to design rule near standard testing sample cylinder base 3 upper surface, directly to the difference in height that surface declines Connect observation rule.
The lower surface of standard testing sample cylinder base 3 is as follows with the lower surface difference in height h1 computing formula of standard stator sample block 7:
h1=(H+h0-A1).
(3)Calculate under the active force of torsion F1, magnitude of interference size δ 1 of standard stator sample block 7 press-in, its computing formula 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 lower surface and the standard stator sample block 7 of standard testing sample cylinder base 3 Lower surface difference in height, D2 be standard testing sample cylinder base 3 lower internal diameter.
3rd step, the magnitude of interference size of measuring and calculating block stator press-in to be measured under the active force of torsion F1, with same torsion Power F1, calculates the magnitude of interference size of block stator press-in to be measured.It comprises the following steps that:
(1)Block stator to be measured use is installed same method with standard stator sample block 7 and is arranged on upper raggle block 6 and support block 8 Between, and equally torsion F1 is being applied on bolt 5.
(2)Equally calculated using difference in height calculating method under lower surface and the standard stator sample block 7 of block stator to be measured Surface height difference is h2, and it comprises the following steps that:
The vertical drop of A, quasi- test specimens cylinder base 3 upper surface of bidding and lower surface is H;
On B, calculating, the upper surface of raggle block 6 and the difference in height of the lower surface of block stator to be measured are A2;
C, under the active force of torsion F1, the difference in height that the upper surface of upper raggle block 6 declines is h0, then:
The lower surface of block stator to be measured is that h2 computing formula is as follows with the lower surface difference in height of standard stator sample block 7:
h2=(H+h0-A2).
(3)Calculate under the active force of torsion F1, the magnitude of interference δ 2 of block stator press-in to be measured, its computing formula is as follows:
δ2=2×(D0/2-(h2×tan45°+D2/2)),
Wherein, D0 be the outside dimension of block stator to be measured, h2 be block stator to be measured lower surface and standard stator sample block 7 Lower surface difference in height, D2 are the lower internal diameter of standard testing sample cylinder base 3.
4th step, the calculating of block stator external diameter to be measured, identical interference magnitude relation is pressed into according to identical torque value and calculates Go out the external diameter value of block stator to be measured.It comprises the following steps that:
(1)It is pressed into identical interference magnitude relation according to identical torque value to obtain, δ 1=δ 2, thus extrapolate:
D0=D-2 × h1 × tan45 °+2 × h2 × tan45 °,
Wherein, D be the external diameter value of standard stator sample block 7, h1 be standard testing sample cylinder base 3 lower surface and standard stator sample block 7 Lower surface difference in height, h2 be the lower surface of block stator to be measured and the lower surface difference in height of standard stator sample block 7.
(2)Setting 3 different torque value Fa, Fb and Fc, can obtain torque value Fa, Fb and Fc by the computing formula of D0 External diameter value D0a, D0b of produced block stator to be measured and D0c.
(3)Calculate external diameter value D0a, D0b of block stator to be measured and the meansigma methodss of D0c, three values are carried out count except average Calculation, external diameter value D0a, D0b of block stator to be measured and the meansigma methodss of D0c are then the external diameter value of block stator to be measured, that is, meet mark Certainly under conditions of increment block 7 magnitude of interference, the true external diameter value of block stator to be measured.
Ultimate principle, principal character and the advantages of the present invention of the present invention have been shown and described above.The technology of the industry The simply present invention it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description for the personnel Principle, without departing from the spirit and scope of the present invention the present invention also have various changes and modifications, these change and Improvement both falls within the range of claimed invention.The protection domain of application claims by appending claims and its Equivalent defines.

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 In circular bottom plate(1)On cup dolly(2)It is characterised in that:
Described cup dolly(2)Inner diameter hole be ramp structure and cup dolly(2)The internal diameter of upper surface is more than the interior of lower surface Footpath, canonical measure sample cylinder base(3)For round platform inverted structure, canonical measure sample cylinder base(3)Axial centre be hollow structure, standard Measurement sample cylinder base(3)Inner diameter hole be ramp structure and canonical measure sample cylinder base(3)The internal diameter of upper surface is more than the interior of lower surface Footpath, canonical measure sample cylinder base(3)It is placed on cup dolly(2)Interior and work as canonical measure sample cylinder base(3)It is placed on cup dolly(2) When interior, canonical measure sample cylinder base(3)With circular bottom plate(1)Between produce gap(9);
Block stator mounting assembly is placed on canonical measure sample cylinder base(3)Interior, block stator mounting assembly includes support block(8)With Upper raggle block(6), support block(8)It is divided into cylinder from top to bottom(11)With lower cylinder(10), upper cylinder(11)With lower circle Cylinder(10)It is structure as a whole, upper cylinder(11)External diameter be less than lower cylinder(10)External diameter, lower cylinder(10)Outer Footpath is than canonical measure sample cylinder base(3)The little 0.5-1.5mm of internal diameter minima, upper cylinder(11)External diameter and standard stator sample block (7)Inner diameter values identical, upper raggle block(6)External diameter than canonical measure sample cylinder base(3)The little 0.5-1.5mm of internal diameter minima;
Hollow bolt(4)It is installed through raggle block(6)Circle centre position and support block(8)Circle centre position, upper raggle block(6)It is located at and prop up Bracer(8)Top, upper raggle block(6)To lower cylinder(10)Vertical dimension and standard stator sample block(7)Thickness identical, mark Certainly increment block(7)Or block stator to be measured is placed on raggle block(6)With lower cylinder(10)Between and around upper cylinder (11)Arrangement, bolt(5)It is arranged on hollow bolt(4)Inner diameter hole on.
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:Described lower cylinder(10)External diameter than canonical measure sample cylinder base(3)The little 1mm of internal diameter minima, upper raggle block(6) External diameter than canonical measure sample cylinder base(3)The little 1mm of internal diameter minima.
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:Described canonical measure sample cylinder base(3)The bus of inner surface and canonical measure sample cylinder base(3)The angle of bottom surface is 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:Described canonical measure sample cylinder base(3)Internal diameter maximum than standard stator sample block(7)Largest outside diameter tolerance value is big 0.02mm, canonical measure sample cylinder base(3)Internal diameter minima than standard stator sample block(7)The little 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:Described gap(9)Height be more than standard stator sample block(7)Thickness.
6. the meter of a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle according to claim 3 Calculation method is it is characterised in that comprise the following steps:
61)The setting of calculating parameter, is marked with quasi- test specimens cylinder base(3)Upper internal diameter be D1, lower internal diameter be D2, piecemeal to be measured The outside dimension of stator is D0;
62)Measuring and calculating is in the active force subscript certainly increment block of torsion F1(7)The magnitude of interference size of press-in;
63)The magnitude of interference size of measuring and calculating block stator press-in to be measured under the active force of torsion F1;
64)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.
7. the meter of a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle according to claim 6 Calculation method is it is characterised in that the big parcel of the magnitude of interference of the active force subscript certainly increment block press-in in torsion F1 for the described measuring and calculating Include following steps:
71)By standard stator sample block(7)It is arranged on raggle block(6)And support block(8)Between, torsion F1 is applied to bolt(5) On;
72)Standard stator sample block(7)External diameter value be D, calculate standard testing sample cylinder base using difference in height calculating method(3)Under Surface and standard stator sample block(7)Lower surface difference in height be h1;
73)Calculate under the active force of torsion F1, standard stator sample block(7)Magnitude of interference size δ 1 of press-in, its computing formula is such as Under:
δ1=2×(D/2-(h1×tan45°+D2/2)),
Wherein, D is standard stator sample block(7)External diameter value, h1 be standard testing sample cylinder base(3)Lower surface and standard stator sample Block(7)Lower surface difference in height, D2 be standard testing sample cylinder base(3)Lower internal diameter.
8. the meter of a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle according to claim 6 Calculation method is it is characterised in that described calculates the big parcel of the magnitude of interference that block stator to be measured is pressed under the active force of torsion F1 Include following steps:
81)Block stator to be measured is arranged on upper raggle block(6)And support block(8)Between, torsion F1 is applied to bolt(5)On;
82)Calculate lower surface and the standard stator sample block of block stator to be measured using difference in height calculating method(7)Lower surface high Degree difference is h2;
83)Calculate under the active force of torsion F1, the magnitude of interference δ 2 of block stator press-in to be measured, its computing formula is as follows:
δ2=2×(D0/2-(h2×tan45°+D2/2)),
Wherein, D0 be the outside dimension of block stator to be measured, h2 be 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. the meter of a kind of block stator external diameter computing device based on magnitude of interference equivalent substitution principle according to claim 6 Calculation method is 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, δ 1=δ 2, thus extrapolate:
D0=D-2 × h1 × tan45 °+2 × h2 × tan45 °,
Wherein, D is standard stator sample block(7)External diameter value, h1 be standard testing sample cylinder base(3)Lower surface and standard stator sample Block(7)Lower surface difference in height, h2 be block stator to be measured lower surface and standard stator sample block(7)Lower surface difference in height;
92)Setting 3 different torque value Fa, Fb and Fc, obtain the outer of block stator to be measured produced by torque value Fa, Fb and Fc Footpath value D0a, D0b and D0c;
93)Calculate external diameter value D0a, D0b of block stator to be measured and the meansigma methodss of D0c, external diameter value D0a of block stator to be measured, The meansigma methodss of D0b and D0c are 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 described difference in height calculating method comprises the following steps:
101)It is marked with quasi- test specimens cylinder base(3)Upper surface is H with the vertical drop of lower surface;
102)Raggle block in calculating(6)Upper surface and standard stator sample block(7)Difference in height A1 of lower surface or calculate upper raggle block (6)The difference in height of the lower surface of upper surface and block stator to be measured be A2;
103)Under the active force of torsion F1, upper raggle block(6)Upper surface decline difference in height be h0, then:
Standard testing sample cylinder base(3)Lower surface and standard stator sample block(7)Lower surface difference in height h1 computing formula as follows:
h1=(H+h0-A1);
Or
The lower surface of block stator to be measured and standard stator sample block(7)Lower surface difference in height be h2 computing formula as follows:
h2=(H+h0-A2).
CN201610909025.2A 2016-10-18 2016-10-18 A kind of block stator external diameter computing device and its computational methods based on magnitude of interference equivalent substitution principle CN106441195B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120065525A (en) * 2010-12-13 2012-06-21 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
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
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
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
CN206192317U (en) * 2016-10-18 2017-05-24 合肥工业大学 Comprises a workbench,

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120065525A (en) * 2010-12-13 2012-06-21 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
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
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
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
CN206192317U (en) * 2016-10-18 2017-05-24 合肥工业大学 Comprises a workbench,

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