CN109282976A - A kind of stator test tooling, the appraisal procedure of stator heating jacket magnitude of interference and motor - Google Patents
A kind of stator test tooling, the appraisal procedure of stator heating jacket magnitude of interference and motor Download PDFInfo
- Publication number
- CN109282976A CN109282976A CN201811002487.1A CN201811002487A CN109282976A CN 109282976 A CN109282976 A CN 109282976A CN 201811002487 A CN201811002487 A CN 201811002487A CN 109282976 A CN109282976 A CN 109282976A
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- Prior art keywords
- stator
- tooling
- interference
- torque
- heating jacket
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of stator test tooling, the appraisal procedure and motor of stator heating jacket magnitude of interference, the appraisal procedure includes that tooling is inserted into the stator for completing hot cover process；On the polygonal head of the tooling that torque spanner is set in tooling；Fixing shell body remain stationary it, incrementally increases the torque of torque spanner, until stator rotates, obtains the current torque value of current torque spanner；If the current torque value is greater than the born maximum torque of rotor in motor calibrating parameters, the assessment result of stator heating jacket magnitude of interference is determined for qualification, otherwise assessment result is unqualified.Appraisal procedure of the invention can assess the design rationality of the stator heating jacket magnitude of interference of compressor electric motor, effectively prevent stator transfer, to ensure Product Safety and stability.
Description
Technical field
The present invention relates to compressor field, in particular to a kind of stator test assessments of tooling, stator heating jacket magnitude of interference
Method and motor.
Background technique
The motor majority of electric scroll compressor is inner-rotor type, and rotor is formed by silicon steel sheet die casting, and stator is then by three-phase
Winding is entwined in sequence.Stator is put into outer housing due to will use hot cover process most of in industry,
Guarantee stator not transfer by certain magnitude of interference.If magnitude of interference design it is unreasonable, during compressor operation, stator with
The skin-friction force of outer housing is insufficiently resistant to rotor to the gravitation of stator, then stator will transfer, break three-phase windings, lead
Compressor is caused to can not work normally.If the three-phase windings broken encounter compressor case, vehicle defective insulation, automobile will lead to
It can not start, vehicle shell band high-voltage electricity can make one to get an electric shock when serious dead.
Summary of the invention
In order to solve problems in the prior art, the present invention provides a kind of stator test toolings, stator heating jacket magnitude of interference
Appraisal procedure and motor, the design for assessing the stator of newly-designed compressor electric motor and the hot jacket magnitude of interference of outer housing it is reasonable
Property, it is ensured that the safety and stability of product component, the technical solution is as follows:
On the one hand, the present invention provides a kind of stator test toolings, including columned tooling ontology, protrusion setting to exist
Tooling boss on tooling ontology cylinder and the polygonal head of tooling that tooling body upper surface and/or lower surface are set, the work
Dress boss is matched with the stator groove of stator to be tested, and the cylinder of the tooling ontology and the inner wall of the stator match
It closes.
Further, the quantity of the tooling boss is three, and three tooling boss are evenly distributed on the tooling ontology
Cylinder on, alternatively, the quantity of the tooling boss is consistent with the quantity of the stator groove of the stator and corresponds.
Further, the height of the tooling ontology is greater than or equal to the height of the stator, the column of the tooling ontology
Gap between face and the inner wall of the stator is less than 5mm.
Further, the polygonal head of the tooling is hexagon head structure.
On the other hand, the present invention provides a kind of using stator test tooling as described above to stator heating jacket magnitude of interference
Appraisal procedure, comprising:
Tooling is inserted into the stator for completing hot cover process；
On the polygonal head of the tooling that torque spanner is set in tooling；
Fixing shell body remain stationary it, incrementally increases the torque of torque spanner, until stator rotates, is worked as
The current torque value of preceding torque spanner；
If the current torque value is greater than the born maximum torque of rotor in motor calibrating parameters, stator heat is determined
The assessment result for covering magnitude of interference is qualification, and otherwise assessment result is unqualified.
Further, the hot cover process includes: that after outer housing is heated to preset first temperature threshold, stator is filled
It is fitted in the outer housing, and is reduced to preset second temperature threshold value, the second temperature threshold value to the shell temperature
Lower than first temperature threshold.
Further, the torque spanner is torque-indicating wrench.
Further, first temperature threshold is determined by following formula:
δ=k*L* Δ T, in which: δ is metal heated expansion variable quantity (mm), and k is linear expansion coefficient (10-6/ DEG C), L
For the diameter (mm) of outer housing, Δ T is that temperature change is poor (DEG C).
Further, under the premise of the assessment result of judgement stator heating jacket magnitude of interference is qualification, according to current outer housing
It is produced and is assembled with the size of stator.
In another aspect, being produced and being assembled including the use of method as described above the present invention provides a kind of motor
Outer housing and stator.
Technical solution bring provided by the invention has the beneficial effect that:
Whether the magnitude of interference for a. assessing electric scroll compressor stator heating jacket designs rationally, and unreasonable magnitude of interference is avoided to lead
Cause stator that safety accident occurs with transferring；
B. the special tooling of test development is assessed for magnitude of interference, structure is simple, and applicability is wide；
C. magnitude of interference evaluation operation is simple, and assessment result is objective and accurate.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the top view of stator test tooling provided in an embodiment of the present invention；
Fig. 2 is the top view of stator to be tested provided in an embodiment of the present invention；
Fig. 3 is the assembled state top view of stator test tooling provided in an embodiment of the present invention and stator；
Fig. 4 is the flow chart of the appraisal procedure of stator heating jacket magnitude of interference provided in an embodiment of the present invention.
Wherein, appended drawing reference includes: 1- tooling ontology, 2- tooling boss, the polygonal head of 3- tooling, 4- stator, and 41- stator is recessed
Slot.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Covering non-exclusive includes to be not necessarily limited to for example, containing the process, method of a series of steps or units, device, product or equipment
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
In order to which stator can be firmly embedded in outer housing, deliberately it is slightly less than stator outer diameter for what outer housing internal diameter designed, so
Use hot cover process afterwards, outer housing and stator using the method expanded with heat and contract with cold it is bushing together with.I.e. outer housing is in heater
After being heated to set temperature, internal diameter is slightly larger than stator outer diameter size, and stator is put into outer housing, assembles in place, until
Temperature is cooled to room temperature, together with stator will tightly be inlayed with outer housing.The difference of outer housing internal diameter and stator outer diameter claims
Be magnitude of interference, magnitude of interference design it is reasonable whether directly determine in actual use, whether stator can transfer.
In a preferred embodiment of the invention, a kind of stator test tooling is provided, as shown in Figure 1, the work
Dress includes columned tooling ontology 1, protrudes the tooling boss 2 being arranged on 1 cylinder of tooling ontology and be arranged in tooling ontology 1
The stator groove 41 of the polygonal head 3 of the tooling of upper surface and/or lower surface, the tooling boss 2 and stator 4 to be tested matches
It closes, the cylinder of the tooling ontology 1 is matched with the inner wall of the stator 4.Preferably, the polygonal head 3 of the tooling is turret head
Structure, as shown in figures 1 and 3, it should be understood that, in addition to tooling turret head, other such as trigonocephalias can also be selected
Or octagonal header structure, accordingly, it is only necessary to select the connector with the torque spanner of polygonal 3 Corresponding matching of head of tooling.
In an alternate embodiment of the present invention where, the stator groove 41 of the stator 4 is six, as shown in Fig. 2, six
Stator groove 41 is uniformly distributed one week, and accordingly, the quantity of the tooling boss 2 is three, as shown in figure 3, three toolings are convex
Platform 2 is evenly distributed on the cylinder of the tooling ontology 1, can be with holding even circumference equal dividing is three equal parts by tooling boss 2
In the stator groove 41 at interval；In another embodiment of the present invention, the quantity of the tooling boss 2 and the stator 4
Stator groove 41 quantity it is consistent and correspond.The former is simplified technique because three tooling boss 2 sufficiently stable to
Stator provide torsion, although and the latter be complex process a bit, have more advantage in torsion precision aspect.
In the above-described embodiments, the height of the tooling ontology 1 is greater than or equal to the stator as a preferred method,
4 height (avoiding the polygonal contracting of head 3 of tooling in bore of stator, torque spanner is hindered to exert a force it), the cylinder of the tooling ontology 1
Gap between the inner wall of the stator 4 is less than 5mm, due in actual product, between the rotor in stator and bore of stator
Gap about in 0.5mm, therefore, in order to improve tooling to the simulation precision of rotor, the cylinder of the tooling ontology 1 with it is described
Gap between the inner wall of stator 4 is preferably 0.5-1mm.It should be understood that tooling receives torsion and further shifts
During on to stator 4, tooling boss 2 is depended on, therefore, even if the gap is greater than 1mm, the influence to simulation precision
Also it is limited, therefore, the numerical example in above-mentioned gap is only preferred embodiment, and not as the limit of the scope of the present invention
System.
In another embodiment of the present invention, it provides and a kind of utilizes stator test tooling described in above-described embodiment
To the appraisal procedure of stator heating jacket magnitude of interference, referring to fig. 4, the appraisal procedure includes following below scheme:
S1, tooling is inserted into the stator for completing hot cover process.
Specifically, the hot cover process includes: that after outer housing is heated to preset first temperature threshold, stator is assembled
It is reduced to preset second temperature threshold value into the outer housing, and to the shell temperature, the second temperature threshold value is low
In first temperature threshold.
Expansion of metal degree formula is as follows:
δ=k*L* Δ T, in which: δ is metal heated expansion variable quantity (mm), and k is linear expansion coefficient (10-6/ DEG C), L
For the diameter (mm) of outer housing, Δ T is that temperature change is poor (DEG C).
Wherein, k has metal material decision, and therefore, (diameter is also for the cylindrical shell made of a certain determining metal
Fixed), expansion variable quantity is determined by temperature change difference.Assuming that the internal diameter of designed enclosures body is d2 according to stator outer diameter d1
(d2<d1), in order to the outer housing being installed to stator after heat expansion, then δ>(d1-d2), acquires the minimum value of Δ T, then described
The minimum value of first temperature threshold is the minimum value that Current Temperatures add Δ T.
Further contemplating compressor and generating heat in the running leads to expanding with heat and contract with cold for metal shell, does the evaluation test
When, shell can slightly be heated, heat is suitable with heat in actual work, i.e., above-mentioned second temperature threshold value is set as real
The temperature of outer housing when border works.
S2, torque spanner is set on the polygonal head of tooling of tooling.
Preferably, the torque spanner is torque-indicating wrench, i.e., torque spanner is equipped with for showing torsion/torque ginseng
Several displays.
S3, fixing shell body remain stationary it, incrementally increase the torque of torque spanner, until stator rotates, obtain
To the current torque value of current torque spanner.
If S4, the current torque value are greater than the born maximum torque of rotor in motor calibrating parameters, it is fixed to determine
The assessment result of sub- hot jacket magnitude of interference is qualification, and otherwise assessment result is unqualified.
The born maximum torque of rotor in the motor calibrating parameters is per a compressor product according to practical peace
One of the calibrating parameters for filling scene (such as the vehicle for being mounted on vehicle) or compressor actual condition demand and formulating.
The principle of assessment is as follows: since above-mentioned tooling is the rotor simulated in actual work, a qualified motor product,
It must assure that when rotor bears the peak torque in allowed band, stator still does not occur to turn with rotor relative to outer housing
It is dynamic, therefore, if current torque value is greater than the born maximum torque of rotor in motor calibrating parameters, when the maximum of calibration is turned round
When square is applied on rotor, stator is also not up to the current torque value (stator rotate current torque value), then stator
It does not rotate, assesses magnitude of interference qualified；If current torque value is less than the born maximum of rotor in motor calibrating parameters
Torque value, then when the peak torque of calibration is applied on rotor, stator early has reached the current torque value, and (stator occurs to turn
Move current torque value), then stator rotates already, and assessment interference figureofmerit is unqualified.
Further, under the premise of the assessment result of judgement stator heating jacket magnitude of interference is qualification, according to current outer housing
It is produced and is assembled with the size of stator.
A kind of motor is also claimed in the present invention, which is produced and filled including the use of the method for such as above-described embodiment
The outer housing and stator matched.
The safety problem of auto parts and components is to rank the first always, and tooling and appraisal procedure provided by the invention can
Rationally assess a newly-designed compressor stator hot jacket magnitude of interference, it is ensured that product safety is reliable, improves user satisfaction.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of stator test tooling, which is characterized in that be arranged including columned tooling ontology (1), protrusion in tooling sheet
Tooling boss (2) on body (1) cylinder and setting tooling ontology (1) upper surface and/or lower surface the polygonal head of tooling (3),
The tooling boss (2) matches with the stator groove (41) of stator (4) to be tested, the cylinder of the tooling ontology (1) with
The inner wall of the stator (4) matches.
2. stator test tooling according to claim 1, which is characterized in that the quantity of the tooling boss (2) is three
A, three tooling boss (2) are evenly distributed on the cylinder of the tooling ontology (1), alternatively, the number of the tooling boss (2)
It measures consistent with the quantity of stator groove (41) of the stator (4) and corresponds.
3. stator test tooling according to claim 1, which is characterized in that the height of the tooling ontology (1) is greater than
Or it is equal to the height of the stator (4), the gap between the cylinder of the tooling ontology (1) and the inner wall of the stator (4) is small
In 5mm.
4. stator test tooling according to claim 1, which is characterized in that the polygonal head of tooling (3) is turret head
Structure.
5. a kind of utilize assessment of the stator test tooling to stator heating jacket magnitude of interference described in any one of claim 1-4
Method characterized by comprising
Tooling is inserted into the stator for completing hot cover process；
On the polygonal head of the tooling that torque spanner is set in tooling；
Fixing shell body remain stationary it, incrementally increases the torque of torque spanner, until stator rotates, is currently turned round
The current torque value of torque wrench；
If the current torque value is greater than the born maximum torque of rotor in motor calibrating parameters, stator heating jacket mistake is determined
The assessment result for the amount of being full of is qualification, and otherwise assessment result is unqualified.
6. the appraisal procedure according to claim 5 to stator heating jacket magnitude of interference, which is characterized in that the hot cover process packet
It includes: after outer housing is heated to preset first temperature threshold, stator being assembled in the outer housing, and to the outer housing
Temperature is reduced to preset second temperature threshold value, and the second temperature threshold value is lower than first temperature threshold.
7. the appraisal procedure according to claim 5 to stator heating jacket magnitude of interference, which is characterized in that the torque spanner is
Torque-indicating wrench.
8. the appraisal procedure according to claim 6 to stator heating jacket magnitude of interference, which is characterized in that first temperature threshold
Value is determined by following formula:
δ=k*L* Δ T, in which: δ is metal heated expansion variable quantity, and k is linear expansion coefficient (10-6/ DEG C), and L is outer housing
Diameter (mm), Δ T be temperature change it is poor (DEG C).
9. the appraisal procedure according to claim 5 to stator heating jacket magnitude of interference, which is characterized in that determine stator heating jacket mistake
Under the premise of the assessment result for the amount of being full of is qualified, is produced and assembled according to the size of current outer housing and stator.
10. a kind of motor, which is characterized in that the shell for being produced and being assembled including the use of method as claimed in claim 9
Body and stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002487.1A CN109282976A (en) | 2018-08-30 | 2018-08-30 | A kind of stator test tooling, the appraisal procedure of stator heating jacket magnitude of interference and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002487.1A CN109282976A (en) | 2018-08-30 | 2018-08-30 | A kind of stator test tooling, the appraisal procedure of stator heating jacket magnitude of interference and motor |
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| Publication Number | Publication Date |
|---|---|
| CN109282976A true CN109282976A (en) | 2019-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811002487.1A Pending CN109282976A (en) | 2018-08-30 | 2018-08-30 | A kind of stator test tooling, the appraisal procedure of stator heating jacket magnitude of interference and motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957872A (en) * | 2019-12-24 | 2020-04-03 | 江西麦克斯韦科技有限公司 | Processing method for improving stress distribution of stator after hot sleeving |
| CN111397888A (en) * | 2020-04-30 | 2020-07-10 | 庆安集团有限公司 | Rotation detection device and detection method for magnetic suspension centrifugal compressor |
| CN114112359A (en) * | 2021-11-19 | 2022-03-01 | 中车长春轨道客车股份有限公司 | Ultra-deep cold assembly interference connection reliability experiment method |
| CN114413725A (en) * | 2022-01-26 | 2022-04-29 | 株洲齿轮有限责任公司 | Method for judging stator assembly qualification on motor stator hot jacket assembly line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957872A (en) * | 2019-12-24 | 2020-04-03 | 江西麦克斯韦科技有限公司 | Processing method for improving stress distribution of stator after hot sleeving |
| CN111397888A (en) * | 2020-04-30 | 2020-07-10 | 庆安集团有限公司 | Rotation detection device and detection method for magnetic suspension centrifugal compressor |
| CN114112359A (en) * | 2021-11-19 | 2022-03-01 | 中车长春轨道客车股份有限公司 | Ultra-deep cold assembly interference connection reliability experiment method |
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| CN114413725A (en) * | 2022-01-26 | 2022-04-29 | 株洲齿轮有限责任公司 | Method for judging stator assembly qualification on motor stator hot jacket assembly line |
| CN114413725B (en) * | 2022-01-26 | 2023-09-01 | 株洲齿轮有限责任公司 | Method for judging stator assembly qualification on motor stator hot jacket assembly line |
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