CN111880098B - Detection tool for motor locked rotor test - Google Patents
Detection tool for motor locked rotor test Download PDFInfo
- Publication number
- CN111880098B CN111880098B CN202010922304.9A CN202010922304A CN111880098B CN 111880098 B CN111880098 B CN 111880098B CN 202010922304 A CN202010922304 A CN 202010922304A CN 111880098 B CN111880098 B CN 111880098B
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- China
- Prior art keywords
- motor
- plate
- round hole
- semicircular groove
- bearing
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The invention discloses a detection tool for a motor locked rotor test, which comprises vertical support plates, wherein the vertical support plates are fixed on a tool table in parallel, one of the vertical support plates is provided with a semicircular groove, and the other vertical support plate is provided with a shaft hole; the motor fixing frame comprises two side plates and an intermediate splint, wherein the side plates and the splint enclose into a motor mounting cavity, a round hole is formed in the side plate on one side, the round hole and a semicircular groove of the vertical supporting plate are concentric circles, a plurality of bearings are arranged on the side plate on the outer side of the round hole around the circle center of the round hole, the bearings are in contact with the groove wall of the semicircular groove, a connecting rod is arranged on the side plate on the other side, a one-way bearing is arranged on the connecting rod and is positioned in the shaft hole of the vertical supporting plate, and the end part of the connecting rod is connected with a rotating handle. In the locked rotor test, the motor can rotate 360 degrees, and the locked rotor stator current and the locked rotor torque of the motor can be measured at the full station when rated voltage and rated frequency are measured.
Description
Technical field:
The invention relates to a motor test tool, in particular to a detection tool for a motor locked rotor test.
The background technology is as follows:
In the current motor detection test, the motor is fixed on a test platform, and the test is performed by using a dynamometer (including a tension or pressure sensor), a hysteresis dynamometer, a torque sensor and other devices for measuring the locked-rotor torque. Since the rotation of the stator inside the motor affects the measured data during operation of the motor, which is fixed on the test platform and cannot rotate, the measured value is the value of the rotor at one position. According to the tool, the motor can rotate 360 degrees in the test process, so that the numerical value of more rotated rotor positions is obtained, and the test data is more accurate.
The invention comprises the following steps:
the invention provides a motor locked rotor test tool which is designed to enable a motor to rotate 360 degrees, and locked rotor stator current and locked rotor torque of the motor are measured at a full station when rated voltage and rated frequency are measured.
The technical scheme adopted for solving the technical problems is as follows:
A detection tool for a motor locked rotor test comprises a tool table, a vertical supporting plate and a motor fixing frame;
two vertical support plates are arranged and are fixed on the tool table in parallel, wherein one vertical support plate is provided with a semicircular groove, and the other vertical support plate is provided with a shaft hole;
the motor fixing frame comprises two side plates and an intermediate splint, wherein the side plates and the splint form a motor mounting cavity, a round hole is formed in the side plate on one side, the round hole and a semicircular groove of the vertical supporting plate are concentric circles, a plurality of bearings are arranged on the side plate on the outer side of the round hole around the circle center of the round hole, the bearings are in contact with the groove wall of the semicircular groove, a connecting rod is arranged on the side plate on the other side, a one-way bearing is arranged on the connecting rod, the one-way bearing is located in a shaft hole of the vertical supporting plate, and the end part of the connecting rod is connected with a rotating handle.
The invention further discloses the following technology:
Preferably, a plurality of bearings outside the round hole are provided with supporting pieces, and the supporting pieces are contacted with the groove walls of the semicircular grooves.
Preferably, the support member is specifically an "H" type structural member, the semicircular groove wall is clamped in the "H" type structural member by using the "H" type structure, a stepped hole is formed in the "H" type structural member, the inner diameter of the large hole is equal to the outer diameter of the bearing, and the inner diameter of the small hole is larger than the outer diameter of a rod body connected with the bearing.
Preferably, the rod body structure of the connecting bearing is provided with threads at one end, and the other end is connected with the bearing and is connected to the side plate through threads.
Preferably, the included angle between two ends of the groove wall of the semicircular groove is more than 180 degrees and less than 360 degrees.
The beneficial effects are that:
in the locked rotor test, the motor can rotate 360 degrees, and the locked rotor stator current and the locked rotor torque of the motor can be measured at the full station when rated voltage and rated frequency are measured.
The motor can rotate for 30 degrees and 45 degrees to obtain test data in the test process, and data processing is performed in the later stage.
Description of the drawings:
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed in the description of the embodiments will be briefly described below, it will be apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art;
FIG. 1 is a general assembly view;
FIG. 2 is a view of the vertical support plate on the left side of FIG. 1;
FIG. 3 is a view of the vertical support plate on the right in FIG. 1;
FIG. 4 is a block diagram of a support;
In the figure, 1 is a tooling table, 2 is a vertical supporting plate, 3 is a motor fixing frame, 21 is a semicircular groove, 22 is a shaft hole, 31 is a side plate, 32 is a clamping plate, and 33 is a round hole; reference numeral 34 denotes a bearing, 35 denotes a link, 36 denotes a side plate, 37 denotes a turning handle, and 38 denotes a support.
The specific implementation structure is as follows:
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Example 1: a detection tool for a motor locked rotor test comprises a tool table 1, a vertical supporting plate 2 and a motor fixing frame 3;
The two vertical support plates are arranged and are fixed on the tool table in parallel, a semicircular groove 21 is arranged on one vertical support plate (for prolonging the service life of the tool and improving the safety of test personnel, a semicircular or ring-shaped fixing device is designed according to the torque of the motor, the invention selects semicircle, the included angle between two ends of the groove wall of the semicircle groove is more than 180 degrees and less than 360 degrees), and the other vertical supporting plate is provided with a shaft hole 22;
the motor fixing frame comprises two side plates 31 and an intermediate clamping plate 32, wherein the side plates and the clamping plate enclose a motor mounting cavity, a round hole 33 is formed in one side plate, a semicircular groove of the round hole and a semicircular groove of the vertical supporting plate are concentric circles, a plurality of bearings 34 are arranged on the side plate outside the round hole around the circle center of the round hole, a connecting rod 35 is arranged on the side plate on the other side, a one-way bearing 36 is arranged on the connecting rod, the one-way bearing is located in a shaft hole of the vertical supporting plate, and the end part of the connecting rod is connected with a rotating handle 37.
During test, the vertical supporting plate is fixed on the tool table, the motor is fixed in the motor installation cavity formed by surrounding the side plate and the clamping plate, the main shaft of the motor extends out of the circle center of the round hole, the main shaft of the motor is connected with the locked-rotor torque measuring equipment, the test data acquisition is successful, the handle at the rear is manually rotated, the motor is rotated by a certain angle, and then the acquisition is carried out repeatedly.
Because this kind of direct current motor moment of torsion is slightly less, the biggest 60N, so the detection frock of this kind of motor installs one-way bearing in rotating assembly, and in the test like this, circumference power is the locked rotor force on one side, and on the other side is one-way bearing power, because one-way bearing can not rotate, only needs the manual work to overcome the power of about 10kg when rotatory, rotates the motor, stops the incident that the motor caused because of rotatory.
And a plurality of bearings outside the round holes are provided with supporting pieces 38, and the supporting pieces are contacted with the groove walls of the semicircular grooves.
The support piece is specifically an H-shaped structural piece, the groove walls of the semicircular grooves are clamped in the H-shaped structural piece through the H-shaped structure, step holes are formed in the H-shaped structural piece, the inner diameter of the large holes is equal to the outer diameter of the bearing, and the inner diameter of the small holes is larger than the outer diameter of a rod body connected with the bearing.
The rod body structure of the connecting bearing is provided with threads at one end, and the other end of the rod body structure is connected with the bearing and is connected to the side plate through threads.
The support piece at the front end of the motor tool is designed by the weight and the moment of the motor, 3 rollers are designed in the figure, and bearings are contained (such as the number of the rollers can be increased due to overlarge power and moment, and the track is designed into a closed round shape). Stability of the tool is improved in the test, and the test is better conducted.
For increasing frock life-span and test personnel safety, design semicircle or circle shape fixing device according to the moment of torsion size of motor, let the frock more stable in the test process.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The utility model provides a motor locked rotor test's detection frock which characterized in that: comprises a tool table, a vertical supporting plate and a motor fixing frame;
two vertical support plates are arranged and are fixed on the tool table in parallel, wherein one vertical support plate is provided with a semicircular groove, and the other vertical support plate is provided with a shaft hole;
The motor fixing frame consists of two side plates and an intermediate clamping plate, wherein the side plates and the clamping plate enclose a motor mounting cavity, a round hole is formed in one side plate, the round hole and a semicircular groove of the vertical supporting plate are concentric circles, a plurality of bearings are arranged on the side plate outside the round hole around the center of the round hole, the bearings are in contact with the groove wall of the semicircular groove, a connecting rod is arranged on the side plate on the other side, a one-way bearing is arranged on the connecting rod, the one-way bearing is positioned in a shaft hole of the vertical supporting plate, and the end part of the connecting rod is connected with a rotating handle;
a plurality of bearings outside the round hole are provided with supporting pieces, and the supporting pieces are contacted with the groove walls of the semicircular grooves;
the support piece is specifically an H-shaped structural piece, the groove wall of the semicircular groove is clamped in the H-shaped structural piece by utilizing an H-shaped structure, a stepped hole is formed in the H-shaped structural piece, the inner diameter of a large hole is equal to the outer diameter of the bearing, and the inner diameter of the small hole is larger than the outer diameter of a rod body connected with the bearing;
The rod body structure of the connecting bearing is that one end is provided with threads, and the other end is connected with the bearing and is connected to the side plate through threads;
The included angle between two ends of the groove wall of the semicircular groove is larger than 180 degrees and smaller than 360 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922304.9A CN111880098B (en) | 2020-09-04 | 2020-09-04 | Detection tool for motor locked rotor test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922304.9A CN111880098B (en) | 2020-09-04 | 2020-09-04 | Detection tool for motor locked rotor test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111880098A CN111880098A (en) | 2020-11-03 |
| CN111880098B true CN111880098B (en) | 2024-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010922304.9A Active CN111880098B (en) | 2020-09-04 | 2020-09-04 | Detection tool for motor locked rotor test |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763114B (en) * | 2020-12-03 | 2022-11-22 | 北京航空航天大学宁波创新研究院 | Stalling torque testing device and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212301786U (en) * | 2020-09-04 | 2021-01-05 | 安徽省电机产品及零部件质量监督检验中心 | Motor stalling test detection tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206074767U (en) * | 2016-08-28 | 2017-04-05 | 南京高崎电机有限公司 | A kind of motor rotation blockage assay device |
| SE542499C2 (en) * | 2018-02-05 | 2020-05-26 | Rototest Int Ab | Method and apparatus for dynamometer testing of a motor vehicle |
| CN108983098A (en) * | 2018-08-15 | 2018-12-11 | 上海市特种设备监督检验技术研究院 | A kind of braking motor pilot system |
| CN109132836A (en) * | 2018-11-05 | 2019-01-04 | 成都天马精密机械有限公司 | Large size bearing hanging apparatus and its suspender |
| CN211061657U (en) * | 2019-06-29 | 2020-07-21 | 高夫环 | Locked rotor testing tool for driving motor |
| CN211374985U (en) * | 2019-10-17 | 2020-08-28 | 中国机械设备工程股份有限公司 | Motor stalling test structure |
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2020
- 2020-09-04 CN CN202010922304.9A patent/CN111880098B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212301786U (en) * | 2020-09-04 | 2021-01-05 | 安徽省电机产品及零部件质量监督检验中心 | Motor stalling test detection tool |
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| CN111880098A (en) | 2020-11-03 |
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