CN108288900A - Fully transparent teaching squirrel-cage asynchronous motor - Google Patents
Fully transparent teaching squirrel-cage asynchronous motor Download PDFInfo
- Publication number
- CN108288900A CN108288900A CN201810283898.6A CN201810283898A CN108288900A CN 108288900 A CN108288900 A CN 108288900A CN 201810283898 A CN201810283898 A CN 201810283898A CN 108288900 A CN108288900 A CN 108288900A
- Authority
- CN
- China
- Prior art keywords
- squirrel
- asynchronous motor
- cage asynchronous
- teaching
- rotor assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/188—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
Abstract
The invention discloses a kind of fully transparent teaching squirrel-cage asynchronous motors.The fully transparent teaching squirrel-cage asynchronous motor, including rotor assembly and stator winding, the rotor assembly includes two installation sheets and multiple sensing posts, described two installation sheets are oppositely arranged, the multiple sensing post is connected between described two installation sheets, the multiple sensing post is arranged around the periphery of the installation sheet, and observation gap is formed between sensing post described in each adjacent two.Fully transparent teaching squirrel-cage asynchronous motor provided by the invention, by the way that rack is arranged, stator winding and rotor assembly are mounted in rack simultaneously, and frequency converter is installed in front of stator winding, the operation principle for intuitively demonstrating motor can realize speed governing and convenient for directly observing its internal structure.In addition, the fully transparent teaching squirrel-cage asynchronous motor is simple in structure, and it is easy to operate, suitable for promoting the use of.
Description
Technical field
The present invention relates to teaching aid technical fields, particularly, are related to a kind of fully transparent teaching squirrel-cage asynchronism electricity
Motivation.
Background technology
On Physics Classroom, teacher needs to explain basic principle about motor to student, in actual industrial and the people
In life, the equipment such as a large amount of wind turbine, electric appliance need variable-speed operation, to reduce the operating power consumption of these equipment, in teaching process
In, teacher is not only required to the motor model of demonstration motor basic principle, and it is electronic can to demonstrate speed governing with greater need for one kind
The model of machine, however, the function of the typically no speed governing of existing electromotor teaching model, and be not easy to be directly observed its internal junction
Structure.
Invention content
The technical problem to be solved by the present invention is to：In order to overcome the above-mentioned problems in the prior art, one is now provided
Kind is capable of the fully transparent teaching squirrel-cage asynchronous motor of speed governing.
A kind of fully transparent teaching squirrel-cage asynchronous motor, including rotor assembly and stator winding, the rotor set
Part includes two installation sheets and multiple sensing posts, and described two installation sheets are oppositely arranged, and the multiple sensing post is connected to described
Between two installation sheets, the multiple sensing post is arranged around the periphery of the installation sheet, sensing post described in each adjacent two it
Between be formed with observation gap, the stator winding includes frequency converter and three-phase hot-wire coil, the three-phase hot-wire coil with it is described
Frequency converter is electrically connected, and the three-phase hot-wire coil includes multiple harness, and the multiple harness is set around the rotor assembly
It sets, observation interval, the multiple observation gap and the multiple observation interval at least portion is formed between each adjacent two harness
Divide connection to form observation channel.
In a wherein embodiment, the stator winding and the rotor assembly do not include silicon steel sheet.
In a wherein embodiment, the direction of rotation of the rotor assembly is perpendicular to the ground, and the harness includes straight
Line part, the straight line portion are parallel with the direction of rotation of the rotor assembly.
In a wherein embodiment, the installation sheet is round or circular ring shape copper sheet, and the sensing post is cylinder
The opposite end of shape copper bar, the cylindrical, copper bar is respectively welded on described two installation sheets.
Further include rack in a wherein embodiment, the rack includes pedestal, supporting rack and mounting bracket, institute
State supporting rack setting on the base, the mounting bracket is arranged on support frame as described above, and the mounting bracket includes at least two
Transparent panel and multiple connecting rods, at least two transparent panel is arranged in parallel, and the multiple connecting rod is vertically connected at
On at least two transparent panel, the center of at least two transparent panel offers centre bore and edge offer it is multiple
Card slot, the rotor assembly are located in the centre bore of at least two transparent panel, and the multiple harness is arranged in described respectively
In multiple card slots.
In a wherein embodiment, the multiple connecting rod is arranged around the rotor assembly uniform intervals, described
Multiple mounting holes are offered at least two transparent panels, the multiple connecting rod is arranged in respectively in the multiple mounting hole.
In a wherein embodiment, support frame as described above includes rotating shaft rod, the rotating shaft rod be arranged in it is described extremely
In the centre bore of few two transparent panels, described two installation sheets are ring segment, and described two installation sheets are arranged by bearing
In on the rotating shaft rod.
In a wherein embodiment, support frame as described above further includes first support bar and second support bar, and described
On the base, the both ends of the second support bar are connected to institute for one supporting rod and the equal vertical connection of the rotating shaft rod
It states in first support bar and the rotating shaft rod, the junction of the rotating shaft rod and the second support bar is provided with fixation
Set, the rotating shaft rod are removably mounted in the fixing sleeve.
In a wherein embodiment, the number of at least two transparent panel is three, and three transparent panels are equal
For circular ring shape, and the diameter of the centre bore on the intermediate transparent panel is than the center on the transparent panel at both ends
The diameter in hole is big.
In a wherein embodiment, elastic component is provided in the card slot, the bearing is ceramic bearing.
The beneficial effects of the invention are as follows：Fully transparent teaching squirrel-cage asynchronous motor provided by the invention, due to it
On be formed with observation channel, therefore convenient for being directly observed its internal structure, by the way that rack is arranged, stator winding and rotor
Component is mounted in rack simultaneously, and frequency converter is installed on stator winding, intuitively demonstrates the operation principle of variable-speed motor,
It is simple in structure, it is easy to operate, suitable for promoting the use of, and by frequency converter speed governing can be carried out to the rotor assembly.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the fully transparent teaching squirrel-cage asynchronous motor of the present invention；
Fig. 2 is another visual angle schematic diagram of the transparent panel in fully transparent teaching squirrel-cage asynchronous motor shown in Fig. 1.
In figure：10, rack, 11, pedestal, 12, supporting rack, 121, first support bar, 122, rotating shaft rod, 123, second
Strut, 124, fixing sleeve, 13, mounting bracket, 131, transparent panel, 1311, centre bore, 1312, mounting hole, 1313, card slot, 1314,
Elastic component, 132, connecting rod, 20, stator winding, 21, frequency converter, 22, three-phase hot-wire coil, 30, rotor assembly, 31, squirrel-cage
Rotor, 311, end ring, 312, sensing post, 313, bearing.
Specific implementation mode
Presently in connection with attached drawing, the present invention is described in detail.This figure is the schematic diagram of simplification, is only illustrated in a schematic way
The basic structure of the present invention, therefore it only shows the composition relevant to the invention.
Referring to Fig. 1, the present invention provides a kind of fully transparent teaching squirrel-cage asynchronous motor, the fully transparent religion
Squirrel-cage asynchronous motor includes rack 10, stator winding 20 and rotor assembly 30.
Rack 10 includes pedestal 11, supporting rack 12 and mounting bracket 13, and supporting rack 12 is arranged on the pedestal 11, mounting bracket 13
It is removably disposed on supporting rack 12.
11 generally rectangular plate of pedestal, supporting rack 12 include first support bar 121, rotating shaft rod 122 and second
Supporting rod 123, first support bar 121, rotating shaft rod 122 and second support bar 123 are cylindrical bar, first support bar 121
On the pedestal 11 with 122 equal vertical connection of rotating shaft rod, the both ends of second support bar 123 are connected to first support bar 121
With rotating shaft rod 122, and in one end far from pedestal 11.
Further, the junction of rotating shaft rod 123 and second support bar 123 is provided with fixing sleeve 124, fixing sleeve 124
On be respectively arranged with the first mounting hole (not shown) and the second mounting hole (not shown), rotating shaft rod 123 is mounted on first
In mounting hole, second support bar 123 is mounted in the second mounting hole, and external application fastener is fixed respectively, and later period maintenance is facilitated to dismantle.
It please referring to Fig.1 and Fig. 2, mounting bracket 13 includes multiple transparent panels 131 and multiple connecting rods 132, in present embodiment,
13 generally circular surface plate of transparent panel, it is possible to understand that ground, in other embodiment, transparent panel 131 can also be rectangle
Surface plate, about 131 multiple transparent panels are arranged in parallel, and centre bore 1311, multiple mounting holes are provided on each transparent panel 131
1312 and multiple card slots 1313, centre bore 1311 is arranged at the center of transparent panel 131, corresponding with rotating shaft rod 122, Duo Gean
It fills hole 1312 to arrange around 1311 circular array of centre bore, multiple card slots 1313 are arranged at intervals on the surrounding of transparent panel 131, block
Slot 1313 has an opening, and the opening is arranged far from the transparent panel.
Further, card slot 1313 is internally provided with elastic component 1314, can adjust the size of card slot 1313.
In present embodiment, the number of transparent panel 131 is 3, and positioned at the centre bore 1311 of intermediate transparent panel 131
Diameter is bigger than the diameter of the centre bore 1311 on the transparent panel 131 at both ends.
Connecting rod 132 is cylinder rod-shaped, and connecting rod 132 is corresponding with mounting hole 1312, and about 132 each connecting rod is worn
In in corresponding mounting hole 1312, the both ends of connecting rod 132 are removable with the mounting hole at both ends 1312 respectively on multiple transparent panels 131
It connects with unloading, in present embodiment, the both ends of connecting rod 132 are fixed on the transparent of both ends by the fasteners such as external application bolt, screw
On plate 131.
Referring to Fig. 1, stator winding 20 includes frequency converter 21 and three-phase hot-wire coil 22, frequency converter 21 is connected to each three
One end of phase hot-wire coil 22.
Three-phase hot-wire coil 22 is substantially in strip, and the both ends and middle part of three-phase hot-wire coil 22 are fastened on multiple respectively
In 131 corresponding card slot 1313 of transparent panel, due to being provided with elastic component in card slot 1313, the three-phase of different diameter specifications is made to be powered
Coil 22 can be fastened in card slot 1313.
Frequency converter 21 is connected to one end of three-phase hot-wire coil 22, is powered to three-phase hot-wire coil 22 by frequency converter 21,
And pass through the size of electric current in adjusting three-phase hot-wire coil 22 that can be by adjusting frequency converter 21.
Rotor assembly 30 includes cage rotor 31.
Cage rotor 31 is arranged in the centre bore 1311 on transparent panel 131, and cage rotor 31 includes two end ring
311 and Duo Gen sensing posts 312, end ring 311 are circular annular form, it is possible to understand that ground, end ring 311 can be that stainless steel thin slice or aluminium are thin
Piece, in present embodiment, end ring 311 selects copper foil, and the both ends of every sensing post 312 are separately positioned on two end ring 311
Edge.
The centre of two end ring 311 is set on rotating shaft rod 122, is set between each end ring 311 and rotating shaft rod 122
It is equipped with bearing 313, in present embodiment, bearing 313 is made of the smaller ceramic material of friction coefficient.
Stator winding 20 and rotor assembly 30 are without silicon steel sheet magnetic conduction.
Illustrate the use process of the fully transparent teaching squirrel-cage asynchronous motor of the present invention below in conjunction with the accompanying drawings.
Starting frequency converter 21, electric current is passed through in three-phase hot-wire coil 22,22 surrounding of energization three-phase hot-wire coil generates magnetic field,
Cage rotor 31 rotates under magnetic field induction, adjusts the frequency of frequency converter 21, and the size of current in three-phase hot-wire coil 22 changes
Become, the magnetic field power around energization three-phase hot-wire coil 22 changes so that the rotating speed of cage rotor 31 changes.
The beneficial effects of the invention are as follows：Fully transparent teaching squirrel-cage asynchronous motor provided by the invention, due to it
On be formed with observation channel, therefore convenient for being directly observed its internal structure, by the way that rack is arranged, stator winding and rotor
Component is mounted in rack simultaneously, and frequency converter is installed on stator winding, intuitively demonstrates the operation principle of variable-speed motor,
It is simple in structure, it is easy to operate, suitable for promoting the use of, and by frequency converter speed governing can be carried out to the rotor assembly.
For example, in one embodiment, the fully transparent teaching squirrel-cage asynchronous motor includes rotor assembly and determines
Sub- winding, the rotor assembly include two installation sheets and multiple sensing posts, and described two installation sheets are oppositely arranged, the multiple
Sensing post is connected between described two installation sheets, and the multiple sensing post is arranged around the periphery of the installation sheet, per adjacent
Observation gap is formed between two sensing posts, the stator winding includes frequency converter and three-phase hot-wire coil, and described three
Phase hot-wire coil is electrically connected with the frequency converter, and the three-phase hot-wire coil includes multiple harness, and the multiple harness encloses
It is arranged around the rotor assembly, is formed with observation interval between each adjacent two harness, the multiple observation gap and described more
A observation interval is at least partly connected to form observation channel.The asynchronous motor can be observed by the observation channel
Internal structure.
For example, the stator winding and the rotor assembly do not include silicon steel sheet.The direction of rotation of the rotor assembly
Perpendicular to the ground, the harness includes straight line portion, and the straight line portion is parallel with the direction of rotation of the rotor assembly.It is described
Sensing post is cylindrical, copper bar, and the opposite end of the cylindrical, copper bar is respectively welded on described two installation sheets.Further include
Rack, the rack include pedestal, supporting rack and mounting bracket, and support frame as described above is arranged on the base, the mounting bracket
It is arranged on support frame as described above, the mounting bracket includes at least two transparent panels and multiple connecting rods, and described at least two is transparent
Plate is arranged in parallel, at least two transparent panels described in the multiple equal vertical connection of connecting rod, at least two transparent panel
Center offer centre bore and edge offers multiple card slots, the rotor assembly is located at least two transparent panel
Centre bore in, the multiple harness is arranged in respectively in the multiple card slot.The multiple transparent panel also being capable of supplementary observation
To the internal structure of the asynchronous motor.For example, the multiple connecting rod is arranged around the rotor assembly uniform intervals, institute
It states and offers multiple mounting holes at least two transparent panels, the multiple connecting rod is arranged in the multiple mounting hole respectively
In.Support frame as described above includes rotating shaft rod, and the rotating shaft rod is arranged in the centre bore of at least two transparent panel, described
Two installation sheets are ring segment, and described two installation sheets are set to by bearing holder (housing, cover) on the rotating shaft rod.For example, the support
Frame further includes first support bar and second support bar, and the first support bar and the rotating shaft rod are vertically connected on described
On pedestal, the both ends of the second support bar are connected in the first support bar and the rotating shaft rod, the rotation
The junction of shaft and the second support bar is provided with fixing sleeve, and the rotating shaft rod is removably mounted on the fixing sleeve
In.
For example, for the ease of the rotation of the rotor assembly, the multiple transparent panel is rotationally sheathed on the rotation axis
On bar, wherein being provided with bearing between transparent panel and the pedestal in bottom, it is provided with slip ring at the top of the bearing,
The i.e. described slip ring is located between the transparent panel and the bearing, is penetrated through on the slip ring and is offered multiple installation holes,
Ball is installed in the multiple installation hole, the ball is supported with the ball sliding in the transparent panel and the bearing respectively
It connects, to improve the rotation smoothness of the transparent panel.
It is enlightenment, through the above description, relevant staff with above-mentioned desirable embodiment according to the present invention
Various changes and amendments can be carried out in without departing from the scope of the present invention completely.The technical scope of this invention is not
The content being confined on specification, it is necessary to which its technical scope is determined according to right.
Claims (10)
1. a kind of fully transparent teaching squirrel-cage asynchronous motor, it is characterised in that：Including rotor assembly and stator winding, institute
It includes two installation sheets and multiple sensing posts to state rotor assembly, and described two installation sheets are oppositely arranged, and the multiple sensing post connects
It is connected between described two installation sheets, the multiple sensing post is arranged around the periphery of the installation sheet, described in each adjacent two
Observation gap is formed between sensing post, the stator winding includes frequency converter and three-phase hot-wire coil, the three-phase live wire
Circle is electrically connected with the frequency converter, and the three-phase hot-wire coil includes multiple harness, and the multiple harness turns around described
Sub-component is arranged, and observation interval is formed between each adjacent two harness, between the multiple observation gap and the multiple observation
Every being at least partly connected to channel is observed to be formed.
2. fully transparent teaching squirrel-cage asynchronous motor as described in claim 1, it is characterised in that：The stator winding
And the rotor assembly does not include silicon steel sheet.
3. fully transparent teaching squirrel-cage asynchronous motor as described in claim 1, it is characterised in that：The rotor assembly
Direction of rotation it is perpendicular to the ground, the harness includes straight line portion, the rotation side of the straight line portion and the rotor assembly
To parallel.
4. fully transparent teaching squirrel-cage asynchronous motor as described in claim 1, it is characterised in that：The installation sheet is
Round or circular ring shape copper sheet, the sensing post are cylindrical, copper bar, the opposite end of the cylindrical, copper bar be respectively welded in
On described two installation sheets.
5. fully transparent teaching squirrel-cage asynchronous motor as described in claim 1, it is characterised in that：Further include rack,
The rack includes pedestal, supporting rack and mounting bracket, and support frame as described above is arranged on the base, and the mounting bracket setting exists
On support frame as described above, the mounting bracket includes at least two transparent panels and multiple connecting rods, and at least two transparent panel is mutual
It is arranged in parallel, the multiple connecting rod is vertically connected at least two transparent panel, at least two transparent panel
Center offers centre bore and edge offers multiple card slots, and the rotor assembly is located at least two transparent panel
In centre bore, the multiple harness is arranged in respectively in the multiple card slot.
6. fully transparent teaching squirrel-cage asynchronous motor as claimed in claim 5, it is characterised in that：The multiple connection
Bar is arranged around the rotor assembly uniform intervals, and multiple mounting holes are offered at least two transparent panel, described more
A connecting rod is arranged in respectively in the multiple mounting hole.
7. fully transparent teaching squirrel-cage asynchronous motor as claimed in claim 5, it is characterised in that：Support frame as described above packet
Rotating shaft rod is included, the rotating shaft rod is arranged in the centre bore of at least two transparent panel, and described two installation sheets are
Ring segment, described two installation sheets are set to by bearing holder (housing, cover) on the rotating shaft rod.
8. fully transparent teaching squirrel-cage asynchronous motor as claimed in claim 7, it is characterised in that：Support frame as described above is also
Including first support bar and second support bar, the first support bar and the rotating shaft rod are vertically connected on the pedestal
On, the both ends of the second support bar are connected in the first support bar and the rotating shaft rod, the rotating shaft rod
The junction of the second support bar is provided with fixing sleeve, the rotating shaft rod is removably mounted in the fixing sleeve.
9. fully transparent teaching squirrel-cage asynchronous motor as claimed in claim 8, it is characterised in that：Described at least two
The number of transparent panel is three, and three transparent panels are circular ring shape, and the centre bore on the intermediate transparent panel
Diameter it is bigger than the diameter of the centre bore on the transparent panel at both ends.
10. fully transparent teaching squirrel-cage asynchronous motor as claimed in claim 9, it is characterised in that：In the card slot
It is provided with elastic component, the bearing is ceramic bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810283898.6A CN108288900A (en) | 2018-04-02 | 2018-04-02 | Fully transparent teaching squirrel-cage asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810283898.6A CN108288900A (en) | 2018-04-02 | 2018-04-02 | Fully transparent teaching squirrel-cage asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108288900A true CN108288900A (en) | 2018-07-17 |
Family
ID=62833856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810283898.6A Withdrawn CN108288900A (en) | 2018-04-02 | 2018-04-02 | Fully transparent teaching squirrel-cage asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108288900A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109615990A (en) * | 2019-01-04 | 2019-04-12 | 苏州新派特信息科技有限公司 | A kind of electronic experiment simulator |
-
2018
- 2018-04-02 CN CN201810283898.6A patent/CN108288900A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109615990A (en) * | 2019-01-04 | 2019-04-12 | 苏州新派特信息科技有限公司 | A kind of electronic experiment simulator |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 213017 room 1904, unit 15, Rainbow City, Yongning North Road, Tianning District, Changzhou, Jiangsu Applicant after: Ji Mingjun Address before: 213017 room 1904, unit 15, Cai Cheng, Yongning North Road, Tianning District, Changzhou, Jiangsu, China Applicant before: Ji Mingjun |
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| CB02 | Change of applicant information | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180717 |
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| WW01 | Invention patent application withdrawn after publication |