CN112611297A - Process and equipment for detecting air gap between stator and rotor of motor - Google Patents
Process and equipment for detecting air gap between stator and rotor of motor Download PDFInfo
- Publication number
- CN112611297A CN112611297A CN202011622351.8A CN202011622351A CN112611297A CN 112611297 A CN112611297 A CN 112611297A CN 202011622351 A CN202011622351 A CN 202011622351A CN 112611297 A CN112611297 A CN 112611297A
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- air gap
- stator
- detecting
- rotor
- plug gauge
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- General Physics & Mathematics (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The equipment for detecting the air gap between the stator and the rotor of the motor comprises a fixed seat, wherein the center of the bottom of the fixed seat is provided with a mounting groove; one end of the plug gauge shaft is fixedly arranged in the mounting groove; the upper connecting seat is fixedly connected with the fixed seat through a long screw; the plug gauge detecting body is sleeved at one end of a plug gauge shaft and simulates a rotor core, and is used for detecting whether an air gap between an inner hole of the stator component and the rotor core meets requirements or not after the processed stator component is installed. The device provided by the invention has the advantages of exquisite structure, convenience in operation and high detection efficiency, simulates the state of the stator and the rotor during assembly, detects whether the air gap between the rotors meets the use requirement or not by the plug gauge detection body, provides an effective detection means for detecting whether the air gap of the processed stator component is qualified or not, and lays a foundation for the assembly of subsequent motor components.
Description
Technical Field
The invention relates to a method and equipment for detecting an air gap between a stator and a rotor of a motor, in particular to the detection of the air gap between a stator component and the rotor of the motor after machining.
Background
The size of the air gap is an important parameter for normal operation of the motor, and if the air gap is too small, the stator and the rotor are easy to sweep, so that the assembly precision is influenced; if the air gap is too large, the magnetic resistance is increased, the magnetic induction of a motor coil is influenced, and the power of the motor is directly influenced. At present, because the stator hole is thick reference surface, in addition the clamping error to cause the air gap homogeneity after stator part and the rotor assembly not enough, sweep the thorax phenomenon and take place occasionally, bring very big puzzlement for the assembly. To ensure the smooth assembly of the motor, it is important to effectively detect the air gap between the stator and the rotor before assembly.
Disclosure of Invention
To solve the above problems, a method and apparatus for detecting an air gap between a stator and a rotor of an electric machine are provided.
The object of the invention is achieved in the following way:
an apparatus for detecting an air gap between a stator and a rotor of an electric machine, comprising
The center of the bottom of the fixed seat is provided with an installation groove;
one end of the plug gauge shaft is fixedly arranged in the mounting groove;
the upper connecting seat is fixedly connected with the fixed seat through a long screw;
the plug gauge detecting body is sleeved at one end of a plug gauge shaft and simulates a rotor core, and is used for detecting whether an air gap between an inner hole of the stator component and the rotor core meets requirements or not after the processed stator component is installed.
The upper connecting seat is of a circular ring structure, and a threaded hole matched with the screw is formed in the circular ring.
The plug gauge shaft is the same as the motor rotating shaft in structure and adopts a stepped shaft.
The bottom surface of the fixing seat is circular, a raised circular ring is arranged on the circumference of the fixing seat, and a threaded hole matched with the screw is formed in the circular ring.
The fixed seat and the upper connecting seat are respectively provided with an inner spigot, and the inner spigot is matched with a spigot on the processed motor shell.
The plug gauge detecting body comprises a handheld portion and a measuring portion integrally arranged with the handheld portion, the measuring portion is of an open hollow cylindrical structure, and when the measuring portion is sleeved on a plug gauge shaft, a gap between an outer circle of the measuring portion and an inner hole of a stator component is 0.1 mm.
The thickness of the inner wall and the outer wall of the measuring part is not less than that of the rotor core.
A process for detecting an air gap between a stator and a rotor of an electric machine, the process comprising:
a: respectively carrying out rough machining on the fixed seat and the plug gauge shaft, and assembling and fixing by spot welding after rough machining;
b: integrally and finely machining the assembled fixed seat and the plug gauge shaft to ensure that the coaxiality of an inner spigot on the fixed seat and the excircle of the plug gauge shaft is consistent;
c: the inner rabbets on the fixed seat and the upper connecting seat are matched with the outer rabbets on the motor base provided with the stator part after being processed, and the base is fixed between the fixed seat and the upper connecting seat by using the inner hexagonal long screws;
d: after the processed stator is installed in place, a plug gauge detecting body is used for detecting whether an air gap between an inner hole of a stator component and a rotor core meets the use requirement.
Whether the air gap of the workpiece is qualified or not can be judged by completely putting the plug gauge detector into the stator, if the air gap can be put into the stator, the air gap deviation after the rotor core is assembled is within 0.1mm, the air gap meets the requirement, and if the air gap can not be put into the stator, the air gap deviation is too large, so that the subsequent assembly is influenced.
Compared with the prior art, the device has the advantages of exquisite structure, convenient operation and high detection efficiency, simulates the state of the stator and the rotor during assembly, detects whether the air gap between the rotors meets the use requirement or not by the plug gauge detection body, provides an effective detection means for detecting whether the air gap of the processed stator part is qualified or not, and lays a foundation for the assembly of subsequent motor parts.
Drawings
Fig. 1 is a schematic view of the overall structure of the apparatus for detecting an air gap between a stator and a rotor of an electric machine according to the present invention.
Fig. 2 is a schematic view of the stator and base of the present invention in place.
FIG. 3 is a cross-sectional view of FIG. 2
FIG. 4 is a schematic view showing the structure of the fixing base and the plug gauge shaft
Fig. 5 is a schematic structural view of the upper connecting seat.
Fig. 6 is a schematic diagram of the structure of the plug gauge detector.
The measuring device comprises a fixed seat 1, a feeler gauge shaft 2, an upper connecting seat 3, a feeler gauge detecting body 4, a long screw 5, a handheld part 6, a measuring part 7, a stator part 8 and an inner spigot 9.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same technical meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and it should be further understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of the stated features, steps, operations, devices, components, and/or combinations thereof.
In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the respective parts or elements of the present invention, and are not intended to refer to any part or element of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.
An apparatus for detecting an air gap between a stator and a rotor of an electric machine, comprising
The fixing seat 1 is provided with an installation groove in the center of the bottom of the fixing seat 1;
one end of the plug gauge shaft 2 is fixedly arranged in the mounting groove;
the upper connecting seat 3 is fixedly connected with the fixed seat through a long screw;
a stopper gauge detects body 4 cup joints in 2 one ends of stopper gauge axle, simulation rotor core for with the stator part installation back after the processing, act as rotor core and insert stator part hole, detect whether the air gap meets the requirements between stator part hole and the rotor core.
The upper connecting seat 3 is of a circular ring structure, and a threaded hole matched with a screw is formed in the circular ring.
The plug gauge shaft 2 is the same as a motor rotating shaft in structure and adopts a stepped shaft.
The bottom surface of the fixing seat 1 is circular, a raised circular ring is arranged on the circumference, and a threaded hole matched with the long screw 5 is formed in the circular ring.
And the fixed seat 1 and the upper connecting seat 3 are provided with inner rabbets 9, and the inner rabbets are matched with the rabbets on the processed motor shell.
The plug gauge detecting body 4 comprises a handheld portion 6 and a measuring portion 7 integrally arranged with the handheld portion, the measuring portion 7 is of an open hollow cylindrical structure, and when the measuring portion 7 is sleeved on a plug gauge shaft, a gap between an outer circle of the measuring portion 7 and an inner hole of a stator component is 0.1 mm.
The thickness of the inner wall and the outer wall of the measuring part 7 is not less than that of the rotor core.
A process for detecting an air gap between a stator and a rotor of an electric machine, the process comprising:
a: respectively carrying out rough machining on the fixed seat 1 and the plug gauge shaft 2, and assembling and fixing by spot welding after rough machining;
b: integrally and finely machining the assembled fixed seat 1 and the plug gauge shaft 2 to ensure that the coaxiality of an inner spigot 9 of the fixed seat 1 and the outer circle of the plug gauge shaft is consistent; the precision requirement is guaranteed for the follow-up air gap detection, and the accuracy is higher.
C: the inner rabbets 9 on the fixed seat 1 and the upper connecting seat 3 are matched with the outer rabbets on the motor base provided with the stator part after being processed, and the base is fixed between the fixed seat 1 and the upper connecting seat 3 by using the inner hexagonal long screws 5; wherein the plug gauge shaft 2 simulates the role of a rotor rotating shaft, and the fixing seat and the upper connecting seat simulate the roles of the rear end cover and the speed reducer box cover during actual assembly, thereby creating the same assembly conditions as those in actual production and further ensuring the accuracy of detection.
D: after the processed stator is installed in place, a plug gauge detecting body is used for detecting whether an air gap between an inner hole of a stator component and a rotor core meets the use requirement. The deviation of the air gap is generally required to be less than or equal to 0.1mm in a static state after the stator component and the rotor core are assembled, and the plug gauge detecting body simulates the role of the processed rotor core and processes the outer circle of the plug gauge detecting body to form a gap of 0.1mm with the inner hole of the stator.
The plug gauge can be used for detecting whether the air gap of the workpiece is qualified or not by completely placing the plug gauge into an inner hole of a stator component, if the air gap can be placed into the inner hole, the air gap deviation is within 0.1mm after the rotor core is assembled, the air gap meets the requirement, and if the air gap deviation cannot be placed into the inner hole, the air gap deviation is too large, and subsequent assembly is influenced.
The plug gauge shaft 2 and the plug gauge detecting body 4 are in a matching relation, so that the plug gauge detecting body 4 is ensured to be vertical when being inserted into an inner hole of the stator component, and the plug gauge shaft plays a guiding role.
The device provided by the invention has the advantages of exquisite structure, convenience in operation and high detection efficiency, simulates the state of the stator and the rotor during assembly, detects whether the air gap between the rotors meets the use requirement or not by the plug gauge detection body, provides an effective detection means for detecting whether the air gap of the processed stator component is qualified or not, and lays a foundation for the assembly of subsequent motor components.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (9)
1. An apparatus for detecting an air gap between a stator and a rotor of an electrical machine, characterized by: comprises that
The center of the bottom of the fixed seat is provided with an installation groove;
one end of the plug gauge shaft is fixedly arranged in the mounting groove;
the upper connecting seat is fixedly connected with the fixed seat through a long screw;
the plug gauge detecting body is sleeved at one end of a plug gauge shaft and simulates a rotor core, and is used for detecting whether an air gap between an inner hole of the stator component and the rotor core meets requirements or not after the processed stator component is installed.
2. The apparatus for detecting an air gap between a stator and a rotor of an electrical machine of claim 1, wherein: the upper connecting seat is of a circular ring structure, and a threaded hole matched with the screw is formed in the circular ring.
3. The apparatus for detecting an air gap between a stator and a rotor of an electrical machine of claim 1, wherein: the plug gauge shaft is the same as the motor rotating shaft in structure and adopts a stepped shaft.
4. The apparatus for detecting an air gap between a stator and a rotor of an electrical machine of claim 1, wherein: the bottom surface of the fixing seat is circular, a raised circular ring is arranged on the circumference of the fixing seat, and a threaded hole matched with the screw is formed in the circular ring.
5. The apparatus for detecting an air gap between a stator and a rotor of an electrical machine of claim 1, wherein: the fixed seat and the upper connecting seat are respectively provided with an inner spigot, and the inner spigot is matched with a spigot on the processed motor shell.
6. The apparatus for detecting an air gap between a stator and a rotor of an electrical machine of claim 1, wherein: the plug gauge detecting body comprises a handheld portion and a measuring portion integrally arranged with the handheld portion, the measuring portion is of an open hollow cylindrical structure, and when the measuring portion is sleeved on a plug gauge shaft, a gap between an outer circle of the measuring portion and an inner hole of a stator component is 0.1 mm.
7. The apparatus for detecting an air gap between a stator and a rotor of an electrical machine of claim 6, wherein: the thickness of the inner wall and the outer wall of the measuring part is not less than that of the rotor core.
8. A process method for detecting the air gap between the stator and the rotor of a motor is characterized in that: the method comprises the following steps:
a: respectively carrying out rough machining on the fixed seat and the plug gauge shaft, and assembling and fixing by spot welding after rough machining;
b: integrally and finely machining the assembled fixed seat and the plug gauge shaft to ensure that the coaxiality of an inner spigot on the fixed seat and the excircle of the plug gauge shaft is consistent;
c: the inner rabbets on the fixed seat and the upper connecting seat are matched with the outer rabbets on the motor base provided with the stator part after being processed, and the base is fixed between the fixed seat and the upper connecting seat by using the inner hexagonal long screws;
d: after the processed stator is installed in place, a plug gauge detecting body is used for detecting whether an air gap between an inner hole of a stator component and a rotor core meets the use requirement.
9. The process for detecting the air gap between the stator and the rotor of an electric machine according to claim 8, characterized in that: whether the air gap of the workpiece is qualified or not can be judged by completely putting the plug gauge detector into the stator, if the air gap can be put into the stator, the air gap deviation after the rotor core is assembled is within 0.1mm, the air gap meets the requirement, and if the air gap can not be put into the stator, the air gap deviation is too large, so that the subsequent assembly is influenced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011622351.8A CN112611297A (en) | 2020-12-31 | 2020-12-31 | Process and equipment for detecting air gap between stator and rotor of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011622351.8A CN112611297A (en) | 2020-12-31 | 2020-12-31 | Process and equipment for detecting air gap between stator and rotor of motor |
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| Publication Number | Publication Date |
|---|---|
| CN112611297A true CN112611297A (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011622351.8A Pending CN112611297A (en) | 2020-12-31 | 2020-12-31 | Process and equipment for detecting air gap between stator and rotor of motor |
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| CN (1) | CN112611297A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Application publication date: 20210406 |