CN216819637U - Explosion-proof three-phase asynchronous motor with speed measuring device - Google Patents
Explosion-proof three-phase asynchronous motor with speed measuring device Download PDFInfo
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- CN216819637U CN216819637U CN202122139704.5U CN202122139704U CN216819637U CN 216819637 U CN216819637 U CN 216819637U CN 202122139704 U CN202122139704 U CN 202122139704U CN 216819637 U CN216819637 U CN 216819637U
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- phase asynchronous
- asynchronous motor
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- impeller
- driving shaft
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Abstract
The utility model relates to the technical field of three-phase asynchronous motors, in particular to an explosion-proof three-phase asynchronous motor with a speed measuring device, which comprises a three-phase asynchronous motor body, wherein an impeller is arranged on a driving shaft, a rotary speed sensor is used for detecting optical fiber transmission reflection once per circle of rotation of a reflection film on the impeller, an electric pulse signal is generated, the detected pulse number can be used, the speed is calculated by a PLC (programmable logic controller) control main board, the PLC control main board calculates the speed and displays the speed through a speed display screen, the rotating speed of the driving shaft of the three-phase asynchronous motor body is detected, the problem that the existing three-phase asynchronous motor does not have a speed measuring structure, so that the rotating speed of the driving shaft is generally measured by a specific speed measuring instrument, the operation is complicated is solved, and therefore, personnel can know the rotating speed of the three-phase asynchronous motor conveniently, the effect of convenient and portable use is achieved.
Description
Technical Field
The utility model relates to the technical field of three-phase asynchronous motors, in particular to an explosion-proof three-phase asynchronous motor with a speed measuring device.
Background
The three-phase asynchronous motor is one of induction motors, the rotating speed of a rotor of the three-phase asynchronous motor is lower than that of a rotating magnetic field, electromotive force and current are generated due to relative motion between a rotor winding and the magnetic field, and electromagnetic torque is generated by interaction of the rotor winding and the magnetic field, so that energy conversion is realized.
In conclusion, the utility model solves the existing problems by designing the explosion-proof type three-phase asynchronous motor with the speed measuring device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an explosion-proof three-phase asynchronous motor with a speed measuring device, and aims to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
a flameproof three-phase asynchronous motor with a speed measuring device comprises a three-phase asynchronous motor body, wherein a motor encoder is arranged on a shell of the three-phase asynchronous motor body, motor mounting plates are symmetrically arranged at the bottom of the three-phase asynchronous motor body, a driving shaft is fixedly arranged on the three-phase asynchronous motor body, a protective cover is connected to the outer wall of the driving shaft and is positioned on the shell of the three-phase asynchronous motor body through screws, a sensor mounting hole is formed in the protective cover, a rotary speed sensor is mounted inside the sensor mounting hole, an impeller is fixedly sleeved inside the protective cover and positioned on the outer wall of the driving shaft, a reflecting film is arranged on the impeller and corresponds to the transmitting end of the rotary speed sensor, a control box body is arranged on the side wall of the three-phase asynchronous motor body, and a speed display screen is mounted at the port of the control box body, the inside of control box body is provided with PLC control mainboard.
In a preferred embodiment of the present invention, the shield is provided with a through hole for the drive shaft, and the through hole for the drive shaft is in clearance fit with the shield.
In a preferred embodiment of the present invention, the rotary speed sensor is connected to the sensor mounting hole by a screw, and the transmitting end of the rotary speed sensor extends into the shield through the sensor mounting hole.
In a preferred embodiment of the present invention, the impeller has a maximum diameter smaller than a diameter of the inside of the shroud, and a linear dimension between the emission end of the rotary speed sensor and the reflection film is 2 to 3 mm.
As a preferable scheme of the present invention, the PLC control main board is respectively connected to the motor encoder and the rotary speed sensor through wires, and the connection manner is electrical connection.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the impeller is arranged on the driving shaft, the optical fiber transmission reflection is carried out once every time the reflection film on the impeller rotates for one circle by utilizing the rotary speed sensor, an electric pulse signal is generated, the detected pulse number can be used, the speed is calculated by the PLC control main board, and the speed is displayed by the speed display screen after the speed is calculated by the PLC control main board, so that the rotating speed of the driving shaft of the three-phase asynchronous motor body is detected, the problem that the existing three-phase asynchronous motor does not have a speed measuring structure, and the rotating speed of the driving shaft is generally measured by a specific speed measuring instrument, so that the operation is complicated is solved, personnel can know the rotating speed of the three-phase asynchronous motor conveniently, and the portable and convenient effect is achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic illustration of the exploded structure of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view of the internal structure of the control box according to the present invention;
fig. 4 is a schematic structural diagram of the impeller of the present invention.
In the figure: 1. a three-phase asynchronous motor body; 2. a motor encoder; 3. a motor mounting plate; 4. a drive shaft; 5. a shield; 6. a sensor mounting hole; 7. a rotary speed sensor; 8. An impeller; 9. a reflective film; 10. a control box body; 11. a speed display screen; 12. the PLC controls the main board.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
While several embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings, in order to facilitate an understanding of the utility model, the utility model may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed to provide a more complete disclosure of the utility model.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, and that the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, the present invention provides a technical solution:
an explosion-proof three-phase asynchronous motor with a speed measuring device comprises a three-phase asynchronous motor body 1, a motor encoder 2 is arranged on a shell of the three-phase asynchronous motor body 1, motor mounting plates 3 are symmetrically arranged at the bottom of the three-phase asynchronous motor body 1, a driving shaft 4 is fixedly arranged on the three-phase asynchronous motor body 1, a shield 5 is connected to the outer wall of the driving shaft 4 and is positioned on the shell of the three-phase asynchronous motor body 1 through screws, a sensor mounting hole 6 is formed in the shield 5, a rotary speed sensor 7 is arranged in the sensor mounting hole 6, an impeller 8 is fixedly sleeved in the shield 5 and is positioned on the outer wall of the driving shaft 4, a reflecting film 9 is arranged on the impeller 8 and corresponds to a transmitting end of the rotary speed sensor 7, a control box body 10 is arranged on the side wall of the three-phase asynchronous motor body 1, and a speed display screen 11 is arranged at the port of the control box body 10, the interior of the control box body 10 is provided with a PLC control main board 12.
As a further preferable aspect of the present invention, the shield 5 is provided with a drive shaft through hole, and the drive shaft through hole is in clearance fit with the drive shaft 4 and the shield 5.
As a further preferable aspect of the present invention, the rotary speed sensor 7 is connected to the sensor mounting hole 6 by a screw, and the transmitting end of the rotary speed sensor 7 extends to the inside of the shield 5 through the sensor mounting hole 6.
In a further preferred embodiment of the present invention, the maximum diameter of the impeller 8 is smaller than the diameter of the inside of the shroud 5, and the linear dimension between the emission end of the rotary speed sensor 7 and the reflection film 9 is 2 to 3 mm.
As a further preferable aspect of the present invention, the PLC control main board 12 is connected to the motor encoder 2 and the rotary speed sensor 7 through wires, and the connection manner is electrical connection.
The working process of the utility model is as follows: when in use, the PLC control mainboard 12 is respectively connected with the motor encoder 2 and the rotary speed sensor 7 through leads, and the connection mode is electrically connected, when the driving shaft 4 rotates, the shield 5 is sequentially provided with driving shaft through holes, the driving shaft through holes are in clearance fit with the driving shaft 4 and the shield 5, the maximum diameter of the impeller 8 is smaller than the diameter inside the shield 5, and the linear dimension between the transmitting end of the rotary speed sensor 7 and the reflective membrane 9 is 2-3 mm, the reflective membrane 9 on the impeller 8 is driven to rotate, so that the rotary speed sensor 7 is not in direct contact with a moving object, the reflective membrane 9 on the impeller 8 drives the impeller 8 to rotate when the driving shaft 4 rotates, the optical fiber transmits light once every time the impeller 8 rotates for one circle, an electric pulse signal is generated, the speed can be calculated by the detected pulse number and the PLC control mainboard 12, after PLC control mainboard 12 calculates speed, show through speed display screen 11, this process sets up impeller 8 on drive shaft 4, and utilize rotation type speed sensor 7 to detect reflective membrane 9 on the impeller 8 and once every rotation a week optical fiber transmission reflection of light, produce an electric pulse signal, can be by the pulse number that detects and calculate speed through PLC control mainboard 12, after PLC control mainboard 12 calculates speed, show through speed display screen 11, realized detecting the rotatory rotational speed of drive shaft 4 of three-phase asynchronous motor body 1, thereby solved current three-phase asynchronous motor and not had the structure of testing the speed, thereby drive shaft rotational speed generally adopts specific tachometer to measure, thereby complex operation's problem, consequently, the personnel of being convenient for know three-phase asynchronous motor's rotational speed, reach the portable convenient effect of use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a take speed sensor's flame-proof type three-phase asynchronous motor, includes three-phase asynchronous motor body (1), its characterized in that: the motor encoder (2) is arranged on a shell of the three-phase asynchronous motor body (1), motor mounting plates (3) are symmetrically arranged at the bottom of the three-phase asynchronous motor body (1), a driving shaft (4) is fixedly arranged on the three-phase asynchronous motor body (1), a protective cover (5) is connected to the outer wall of the driving shaft (4) and is positioned on the shell of the three-phase asynchronous motor body (1) through screws, a sensor mounting hole (6) is formed in the protective cover (5), a rotary speed sensor (7) is arranged in the sensor mounting hole (6), an impeller (8) is fixedly sleeved on the outer wall of the driving shaft (4) and is arranged in the protective cover (5), a reflecting film (9) is arranged on the impeller (8) and corresponds to the transmitting end of the rotary speed sensor (7), and a control box body (10) is arranged on the side wall of the three-phase asynchronous motor body (1), the port department of control box body (10) installs speed display screen (11), the inside of control box body (10) is provided with PLC control mainboard (12).
2. The flameproof three-phase asynchronous motor with the speed measuring device according to claim 1, characterized in that: a drive shaft through hole is formed in the shield (5), and the drive shaft through hole is in clearance fit with the drive shaft (4) and the shield (5).
3. The explosion-proof type three-phase asynchronous motor with the speed measuring device according to claim 1, characterized in that: the rotary speed sensor (7) is connected with the sensor mounting hole (6) in a threaded mode, and the transmitting end of the rotary speed sensor (7) extends into the shield (5) through the sensor mounting hole (6).
4. The flameproof three-phase asynchronous motor with the speed measuring device according to claim 3, characterized in that: the maximum diameter size of the impeller (8) is smaller than the diameter size inside the protective cover (5), and the linear size between the transmitting end of the rotary speed sensor (7) and the reflecting film (9) is 2-3 mm.
5. The flameproof three-phase asynchronous motor with the speed measuring device according to claim 4, characterized in that: the PLC control main board (12) is respectively connected to the motor encoder (2) and the rotary speed sensor (7) through wires, and the connection mode is electric connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122139704.5U CN216819637U (en) | 2021-08-24 | 2021-08-24 | Explosion-proof three-phase asynchronous motor with speed measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122139704.5U CN216819637U (en) | 2021-08-24 | 2021-08-24 | Explosion-proof three-phase asynchronous motor with speed measuring device |
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| CN216819637U true CN216819637U (en) | 2022-06-24 |
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| CN202122139704.5U Active CN216819637U (en) | 2021-08-24 | 2021-08-24 | Explosion-proof three-phase asynchronous motor with speed measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115021474A (en) * | 2022-06-28 | 2022-09-06 | 苏州金钥匙自动化设备有限公司 | Stepping motor with temperature and rotating speed display function and use method thereof |
-
2021
- 2021-08-24 CN CN202122139704.5U patent/CN216819637U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115021474A (en) * | 2022-06-28 | 2022-09-06 | 苏州金钥匙自动化设备有限公司 | Stepping motor with temperature and rotating speed display function and use method thereof |
| CN115021474B (en) * | 2022-06-28 | 2023-08-11 | 苏州金钥匙自动化设备有限公司 | Stepping motor with temperature and rotation speed display function and use method thereof |
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