CN111856274A - Motor rotation detection device - Google Patents
Motor rotation detection device Download PDFInfo
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- CN111856274A CN111856274A CN202010624836.4A CN202010624836A CN111856274A CN 111856274 A CN111856274 A CN 111856274A CN 202010624836 A CN202010624836 A CN 202010624836A CN 111856274 A CN111856274 A CN 111856274A
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- 238000001514 detection method Methods 0.000 title claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 230000000694 effects Effects 0.000 abstract description 6
- 230000000007 visual effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 5
- 230000000737 periodic effect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- Electromagnetism (AREA)
- Power Engineering (AREA)
Abstract
The application relates to a motor rotation detection device belongs to motor detection technical field, and this application includes: the rotating mechanism is provided with a central shaft hole and is matched with the motor shaft, and the rotating mechanism is provided with an arc-shaped protruding part in the axial plane direction; two or more photodetecting elements configured to: the photoelectric detection elements are distributed around the rotating mechanism, when the motor drives the rotating mechanism to rotate, the arc-shaped protruding parts can pass through between the transmitting parts and the receiving parts of the photoelectric detection elements so as to be sequentially detected by the photoelectric detection elements, and binary codes formed by signals output by the photoelectric detection elements at the same time are periodically changed. According to the motor rotation detection device, a manual visual observation and judgment mode is replaced, and the motor rotation detection effect and efficiency are guaranteed.
Description
Technical Field
The application belongs to the technical field of motor detection, and particularly relates to a motor rotation detection device.
Background
In the related art of detecting the rotation of the motor, for example, the motor is determined by installing a fan blade and a direction indicator (for example, an arrow indicator) and the like, and observing the rotating fan blade and the direction indicator by manual visual observation. The problem that exists is that the pivoted fan blade and direction indicator are observed to the eye, and it has certain length of time requirement of observing, and this arouses visual fatigue easily, and simultaneously, under static state, direction indicator's indicating effect is obvious, but under rotatory state, probably can make the detection personnel produce visual erroneous judgement. The above-mentioned problem, lead to the artifical visual inspection observation to judge detection effect and efficiency difficult to guarantee.
Disclosure of Invention
For overcoming the problem that exists in the correlation technique to a certain extent at least, this application provides the rotatory detection device of motor to replace artifical range estimation observation judgement mode, help guaranteeing the rotatory effect and the efficiency that detect of motor.
In order to achieve the purpose, the following technical scheme is adopted in the application:
a motor rotation detecting device comprising:
the rotating mechanism is provided with a central shaft hole so as to be matched and installed with the motor shaft, and the rotating mechanism is provided with an arc-shaped protruding part in the axial plane direction;
two or more photodetecting elements configured to: each photoelectric detection element is distributed around the rotating mechanism, when the motor drives the rotating mechanism to rotate, the arc-shaped protruding part can pass through between the transmitting part and the receiving part of each photoelectric detection element so as to be sequentially detected by each photoelectric detection element, and binary codes formed by signals output by each photoelectric detection element simultaneously are changed periodically.
Further, the arc-shaped protrusion portion can be simultaneously detected by at least two of the photodetecting elements.
Furthermore, the number of the photoelectric detection elements is two, and the two photoelectric detection elements are arranged at an angle of 90 degrees by taking the circle center of the central shaft hole as a reference.
Further, the arc-shaped protrusion part is a semi-arc-shaped protrusion part.
Further, the rotating mechanism has a disk-shaped body, the central axis hole is formed in the disk-shaped body, and the arc-shaped protrusion extending out of the disk-shaped body in a facing direction is formed at an outer edge of the disk-shaped body.
Further, the rotation mechanism further includes:
and the fixing part is used for fixing the rotating mechanism on a motor shaft.
Further, the motor rotation detecting device further includes:
the motor accommodating mechanism is provided with an accommodating cavity for positioning and fixing the motor.
Further, each photoelectric detection element is arranged on the inner wall of the outlet of the accommodating cavity, so that the rotating mechanism arranged on a motor shaft is matched with each photoelectric detection element in the accommodating cavity when the motor is positioned and fixed in the accommodating cavity.
Further, the motor rotation detecting device further includes:
and the controller is connected with each photoelectric detection element.
Further, the motor rotation detecting device further includes:
and the computer terminal is connected with the controller.
This application adopts above technical scheme, possesses following beneficial effect at least:
The rotating mechanism is provided with the arc-shaped protruding part, the arc-shaped protruding part is matched with two or more than two photoelectric detection elements, when the motor rotation detection is carried out, the rotating mechanism is installed on a motor shaft, the motor drives the rotating mechanism to rotate, the arc-shaped protruding part sequentially passes through each photoelectric detection element, and binary codes formed by signals output by each photoelectric detection element simultaneously are changed periodically, so that the motor rotation is detected. The detection mode is used for replacing a manual visual observation and judgment mode, and the effect and the efficiency of motor rotation detection are favorably ensured.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view showing a motor rotation detecting apparatus according to an exemplary embodiment;
fig. 2 is a schematic structural view of a motor rotation detecting apparatus according to another exemplary embodiment;
fig. 3 is a schematic structural view of a motor rotation detecting apparatus according to another exemplary embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a schematic structural view illustrating a motor rotation detecting apparatus according to an exemplary embodiment, and as shown in fig. 1, the motor rotation detecting apparatus 1 includes:
the rotating mechanism 11 is provided with a central shaft hole 101 for being matched and installed with a motor shaft, and the rotating mechanism 11 is provided with an arc-shaped protruding part 102 in the axial plane direction;
two or more photo-detection elements 12 configured to: each of the photodetection elements 12 is formed to be distributed around the rotation mechanism 11, and when the motor drives the rotation mechanism 11 to rotate, the arc-shaped protrusion 102 can pass between the emitting portion and the receiving portion of each of the photodetection elements 12, so as to be sequentially detected by each of the photodetection elements 12, so that the binary code formed by the signals output by each of the photodetection elements 12 at the same time is periodically changed.
Specifically, with respect to the rotary mechanism 11, as shown in fig. 1, in one embodiment, the rotary mechanism 11 has a disk-shaped body on which a central shaft hole 101 is formed, and an arc-shaped protrusion 102 extending out of the disk-shaped body in a facing direction is formed on an outer edge of the disk-shaped body. With the photodetection element 12, the emitting portion and the receiving portion thereof are disposed facing each other, and light signals are emitted to the receiving portion through the emitting portion, and if the space between the emitting portion and the receiving portion is not blocked by the arc-shaped projection 102, the receiving portion receives the light signals emitted from the emitting portion, and generates a signal indicating that the arc-shaped projection 102 is not detected, whereas if the space between the emitting portion and the receiving portion is blocked by the arc-shaped projection 102, the light signals emitted from the emitting portion are not received by the receiving portion, and generates a signal indicating that the arc-shaped projection 102 is detected. In practical applications, the arc-shaped protrusion 102 can be detected in a non-contact manner by using the photoelectric detection element 12.
At the time of motor rotation detection, the rotating mechanism 11 is mounted on the motor shaft, and the respective photodetecting elements 12 are distributed around the rotating mechanism 11. The rotating mechanism 11 is driven by the motor to rotate, so that the arc-shaped protruding part 102 passes through between the transmitting part and the receiving part of each photoelectric detection element 12, and thus are sequentially detected by the respective photodetecting elements 12, the photodetecting elements 12, in the case where the arc-shaped convex portion 102 is not detected, can output a high level signal, when the arc-shaped protrusion 102 is detected, a low-level signal can be output, and the arc-shaped protrusion 102 is matched with two or more than two photoelectric detection elements 12, so that binary codes formed by the simultaneous output signals of the photoelectric detection elements 12 are periodically changed (the low level is represented by 0, the high level is represented by 1), taking the example of using two photodetecting elements 12, the two photodetecting elements 12 may form a binary code according to whether the arc-shaped protrusion 102 is detected or not, and the output signals at the same time may be as follows: 00. 01, 11 and 10, each of which contains two characters corresponding to the signals simultaneously output by the two photodetecting elements 12. Referring to fig. 1, for example, the signal output by the photodetection element 12a corresponds to the first character of the binary code, the signal output by the photodetection element 12b corresponds to the first character of the binary code, and with the state shown in fig. 1 as the current state, both the photodetection element 12a and the photodetection element 12b detect the arc-shaped protrusion 102, and the binary code formed by the output signal is 11, if the motor drives the rotation mechanism 11 to rotate clockwise, a periodic variation is formed as follows: 11 → 01 → 00 → 10; if the motor drives the rotating mechanism 11 to rotate counterclockwise, a periodic variation is formed as follows: 11 → 10 → 00 → 01. In the process that the motor drives the rotating mechanism 11 to rotate, the detection of the rotating direction of the motor can be realized according to the binary code which changes periodically, and in a change period, the rotating speed can be calculated according to the duration of the level signal corresponding to a single character. Therefore, the detection mode is used for replacing a manual visual observation judgment mode, and the effect and the efficiency of motor rotation detection are favorably ensured.
In a specific application, if three photo-detecting elements 12 are used, the signals output by the three photo-detecting elements 12 at the same time form a binary code with three characters, and the periodic variation of the binary code can be exemplified by referring to the periodic variation of the binary code in the case of the above two characters. Other numbers of photo-detection elements 12 and so on.
In one embodiment, the arc-shaped protrusion 102 can be detected by at least two of the photodetecting elements 12 at the same time.
Specifically, as an implementation of this scheme, referring to fig. 1, fig. 1 shows a case where two photodetecting elements 12 are used, and the arc-shaped protrusion 102 can be detected by two photodetecting elements 12 at the same time. As another specific implementation of this embodiment, for example, in the case of three photodetecting elements 12, the arc-shaped protrusion 102 can be simultaneously detected by two adjacent photodetecting elements 12. In the case of four photodetecting elements 12, the arc-shaped convex portion 102 can be simultaneously detected by two adjacent photodetecting elements 12 or three adjacent photodetecting elements 12.
Referring to fig. 1, in an embodiment, the number of the photodetection elements 12 is two, and the two photodetection elements 12 are disposed at 90 ° with reference to the center of the central axis hole 101.
Referring to fig. 1, in one embodiment, the arc-shaped protrusion 102 is a semi-arc-shaped protrusion 102.
Specifically, referring to fig. 1, it is shown in fig. 1 that two photoelectric detection elements 12 are disposed at 90 ° with reference to the center of the central axis hole 101, and the semicircular arc-shaped protrusion 102 is adopted, so that the state switching changes of two consecutive ones of 00, 01, 11 and 10 can be the same rotation angle, that is, the state switching is performed through 90 ° rotation.
Referring to fig. 1, in an embodiment, the rotating mechanism 11 further includes:
and a fixing part 103 for fixing the rotating mechanism 11 to a motor shaft.
Specifically, the rotating mechanism 11 is fixed on the motor shaft by using the fixing part 103, and for the fixing part 103, reference may be made to a design of fixing the fan blade on the motor shaft in the related art.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a motor rotation detecting apparatus according to another exemplary embodiment, and as shown in fig. 2, the motor rotation detecting apparatus 1 further includes:
the motor accommodating mechanism 13 has an accommodating cavity for positioning and fixing the motor 2.
Specifically, the motor accommodating mechanism 13 provides a positioning and fixing installation place for motor detection, and can position and fix the motor 2.
Referring to fig. 2, in an embodiment, each of the photodetecting elements 12 (only one light spot detecting unit 12a is shown in fig. 2) is disposed on the inner wall at the outlet of the accommodating cavity, so that the rotating mechanism 11 mounted on the motor shaft cooperates with each of the photodetecting elements 12 in the accommodating cavity when the motor 2 is positioned and fixed in the accommodating cavity.
Specifically, through this scheme, in the rotatory testing process of motor 2, rotary mechanism 11 also is located and holds the cavity, holds the cavity and has formed the isolation protection to rotary mechanism 11 of rotation, has all played the guard action to detection personnel and rotary mechanism 11.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a motor rotation detecting apparatus according to another exemplary embodiment, and as shown in fig. 3, the motor rotation detecting apparatus 1 further includes:
and a controller 14 connected to each of the photodetecting elements 12.
Specifically, the controller 14 receives the output signals of the respective photodetecting elements 12, performs processing such as filtering on the received signals, and forms a binary code from the simultaneous output signals of the photodetecting elements 12, and outputs the binary code.
Referring to fig. 3, in an embodiment, the motor rotation detecting device 1 further includes:
And the computer terminal 15 is connected with the controller 14.
Specifically, the computer terminal 15 receives and stores the binary code sent by the controller 14 to provide for a detection person to analyze the motor rotation direction and the rotation speed, or the computer terminal 15 starts running analysis software to analyze and process the received binary code to obtain the motor rotation direction and the rotation speed, and the like.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present application, the meaning of "plurality" means at least two unless otherwise specified.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present; 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 further, as used herein, connected may include wirelessly connected; the term "and/or" is used to include any and all combinations of one or more of the associated listed items.
Any process or method descriptions in flow charts or otherwise described herein may be understood as: represents modules, segments or portions of code which include one or more executable instructions for implementing specific logical functions or steps of a process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. Motor rotation detection device, its characterized in that includes:
the rotating mechanism is provided with a central shaft hole so as to be matched and installed with the motor shaft, and the rotating mechanism is provided with an arc-shaped protruding part in the axial plane direction;
two or more photodetecting elements configured to: each photoelectric detection element is distributed around the rotating mechanism, when the motor drives the rotating mechanism to rotate, the arc-shaped protruding part can pass through between the transmitting part and the receiving part of each photoelectric detection element so as to be sequentially detected by each photoelectric detection element, and binary codes formed by signals output by each photoelectric detection element simultaneously are changed periodically.
2. The motor rotation detecting device according to claim 1, wherein the arc-shaped protrusion is simultaneously detectable by at least two of the photodetecting elements.
3. The motor rotation detecting device according to claim 1 or 2, wherein the number of the photodetecting elements is two, and the two photodetecting elements are disposed at 90 ° with reference to a center of the center axis hole.
4. The motor rotation detecting device according to claim 3, wherein the arc-shaped protrusion is a semi-arc-shaped protrusion.
5. The motor rotation detecting device according to claim 1, wherein the rotation mechanism has a disk-shaped body, the central shaft hole is formed in the disk-shaped body, and the arc-shaped protrusion extending out of the disk-shaped body in a facing direction is formed at an outer edge of the disk-shaped body.
6. The motor rotation detecting device according to claim 1, wherein the rotating mechanism further comprises:
and the fixing part is used for fixing the rotating mechanism on a motor shaft.
7. The motor rotation detecting device according to claim 1, further comprising:
the motor accommodating mechanism is provided with an accommodating cavity for positioning and fixing the motor.
8. The motor rotation detecting device according to claim 7, wherein each of the photodetecting elements is provided on an inner wall at an outlet of the housing cavity to form a fitting of the rotation mechanism mounted on a motor shaft with each of the photodetecting elements in the housing cavity when the motor is positioned and fixed in the housing cavity.
9. The motor rotation detecting device according to claim 1, further comprising:
and the controller is connected with each photoelectric detection element.
10. The motor rotation detecting device according to claim 9, further comprising:
and the computer terminal is connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010624836.4A CN111856274A (en) | 2020-07-02 | 2020-07-02 | Motor rotation detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010624836.4A CN111856274A (en) | 2020-07-02 | 2020-07-02 | Motor rotation detection device |
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| CN111856274A true CN111856274A (en) | 2020-10-30 |
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| US4658133A (en) * | 1983-08-26 | 1987-04-14 | Fuji Electric Corporate Research And Dev. Inc. | Rotational angle detecting device with full circumference illumination and detection |
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| US20020005476A1 (en) * | 2000-07-17 | 2002-01-17 | Shuichi Takeuchi | Apparatus for detecting rotational angle |
| US20020177973A1 (en) * | 2001-05-22 | 2002-11-28 | Funai Electric Co., Ltd. | Rotation direction detecting apparatus |
| CN101701968A (en) * | 2009-11-10 | 2010-05-05 | 三一重工股份有限公司 | Detecting device and method for detecting at least one rotation parameter of rotating object |
| CN104634993A (en) * | 2015-02-10 | 2015-05-20 | 广州广电运通金融电子股份有限公司 | Motor rotating direction and rotating speed detection device and method |
| CN111121890A (en) * | 2019-12-06 | 2020-05-08 | 金卡智能集团股份有限公司 | Photoelectric sampling device and method for meter and meter |
| US20200149930A1 (en) * | 2017-12-12 | 2020-05-14 | SZ DJI Technology Co., Ltd. | Rotation parameter detection method, encoder, laser radar and unmanned aerial vehicle |
| CN212723232U (en) * | 2020-07-02 | 2021-03-16 | 长沙格力暖通制冷设备有限公司 | Motor rotation detection device |
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2020
- 2020-07-02 CN CN202010624836.4A patent/CN111856274A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4658133A (en) * | 1983-08-26 | 1987-04-14 | Fuji Electric Corporate Research And Dev. Inc. | Rotational angle detecting device with full circumference illumination and detection |
| JPH04184259A (en) * | 1990-11-19 | 1992-07-01 | Matsushita Electric Ind Co Ltd | Simple rotary direction detector |
| US20020005476A1 (en) * | 2000-07-17 | 2002-01-17 | Shuichi Takeuchi | Apparatus for detecting rotational angle |
| US20020177973A1 (en) * | 2001-05-22 | 2002-11-28 | Funai Electric Co., Ltd. | Rotation direction detecting apparatus |
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| CN212723232U (en) * | 2020-07-02 | 2021-03-16 | 长沙格力暖通制冷设备有限公司 | Motor rotation detection device |
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