CN217879549U - Permanent magnet synchronous motor does not have speed sensor's start-up detection device - Google Patents
Permanent magnet synchronous motor does not have speed sensor's start-up detection device Download PDFInfo
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- CN217879549U CN217879549U CN202222013982.0U CN202222013982U CN217879549U CN 217879549 U CN217879549 U CN 217879549U CN 202222013982 U CN202222013982 U CN 202222013982U CN 217879549 U CN217879549 U CN 217879549U
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Abstract
The utility model provides a PMSM does not have speed sensor's start detection device, including the mounting panel, fixed auxiliary starting module that is equipped with on the mounting panel, auxiliary starting module one side is equipped with detection module, and detection module one side is equipped with tested motor and places the module, and tested motor places module and detection module all with mounting panel fixed connection; the auxiliary starting module comprises an auxiliary starting motor, a first motor fixing frame fixedly connected is arranged below the auxiliary starting motor, symmetrically distributed sliding grooves are formed in the first motor fixing frame, a first guide rail in sliding fit is arranged in the sliding grooves, and a first friction wheel fixedly connected is arranged at the output end of the auxiliary starting motor; the utility model provides a permanent magnet synchronous motor does not have speedtransmitter's start-up detection device can start synchronous motor to synchronous motor's when will starting speed, acceleration, and the stationarity of rotational speed etc. data detect, and easy operation is convenient, and detection efficiency is high.
Description
Technical Field
The utility model belongs to the synchronous machine field, concretely relates to PMSM does not have speed sensor's start-up detection device.
Background
A synchronous motor is an alternating-current motor that generates torque by interaction between a dc-supplied excitation magnetic field and a rotating magnetic field of an armature, and rotates at a synchronous rotational speed. Synchronous motors can only produce an average torque at synchronous speed. If the stator is connected to the electric network and the rotor is excited by DC excitation, the rotating magnetic field of stator rotates at synchronous speed and the magnetic field of rotor is stopped temporarily because of inertia of rotor, so the generated electromagnetic torque will alternate in positive and negative and its average value is zero. Other methods are required to start the synchronous motor, one of which is the auxiliary motor start method: usually, an induction motor (with the same pole number as that of the synchronous motor and the capacity of about 10-15% of that of the main machine) is selected as an auxiliary motor, the main machine is dragged to be close to the synchronous speed, the auxiliary motor is separated, then a power supply is switched to a stator of the main machine, exciting current is introduced into an exciting winding, and the main machine is dragged to be in the synchronous speed.
After synchronous motor production is accomplished, need detect synchronous motor's rotational speed usually, start acceleration, performance such as whether break down, but synchronous motor's start-up needs auxiliary motor's drive, detects and just need connect auxiliary motor and synchronous motor once, then once again the separation, the installation, the very trouble of process of dismantlement, to the synchronous machine that does not have built-in velocity sensor, can't carry out the start-up speed and detect moreover.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to provide a PMSM does not have speed sensor's start-up detection device to solve the problem in the above-mentioned background art.
The purpose of the utility model can be realized by the following technical scheme:
a starting detection device of a permanent magnet synchronous motor speed sensorless comprises a mounting plate, wherein an auxiliary starting module is fixedly arranged on the mounting plate, a detection module is arranged on one side of the auxiliary starting module, a tested motor placing module is arranged on one side of the detection module, and the tested motor placing module and the detection module are both fixedly connected with the mounting plate;
the auxiliary starting module comprises an auxiliary starting motor, a first motor fixing frame fixedly connected is arranged below the auxiliary starting motor, symmetrically distributed sliding grooves are formed in the first motor fixing frame, a first guide rail in sliding fit is arranged in the sliding grooves, the first guide rail is fixedly connected with the mounting plate, and a first friction wheel fixedly connected is arranged at the output end of the auxiliary starting motor;
the detection module comprises a test gear, bearing seats which are symmetrically distributed are arranged on two sides of the test gear, the bearing seats are fixedly connected with the mounting plate, a shaft which is rotatably connected is arranged on each bearing seat, the shaft is fixedly connected with the test gear, one end of the shaft, which is close to the auxiliary starting module, is fixedly connected with a second friction wheel, and the other end of the shaft is fixedly connected with a third friction wheel;
the detection module also comprises a rotating speed sensor, the detection end of the rotating speed sensor is close to the test gear, and the rotating speed sensor is electrically connected with the data analysis processor;
the module is placed to the measured motor includes second motor mount, is equipped with the spout of symmetric distribution on the second motor mount, is equipped with sliding fit's second guide rail in the spout, second guide rail and mounting panel fixed connection, the fixed detachable synchronous motor that is equipped with on the second motor mount, the fixed detachable adapter sleeve that is equipped with on synchronous motor's the output, synchronous motor's one end is kept away from to the adapter sleeve is fixed and is equipped with the connecting rod, the one end of connecting rod is equipped with fixed connection's fourth friction pulley.
Preferably, one side of the first motor fixing frame, which is far away from the first friction wheel, is provided with a first telescopic cylinder fixing frame which is fixedly connected, the first telescopic cylinder fixing frame is provided with a first telescopic cylinder which is fixedly connected, the output end of the first telescopic cylinder is fixedly connected with the first motor fixing frame, and the first telescopic cylinder fixing frame is fixedly connected with the mounting plate.
Preferably, a sensor frame fixedly connected with the rotating speed sensor is arranged on the rotating speed sensor, and the sensor frame is fixedly connected with the mounting plate.
Preferably, the tested motor placing module further comprises a second telescopic cylinder, an output end of the second telescopic cylinder is fixedly connected with a second motor fixing frame, a second telescopic cylinder fixing frame which is fixedly connected is arranged on the second telescopic cylinder, and the second telescopic cylinder fixing frame is fixedly connected with the mounting plate.
The utility model has the advantages that:
the utility model provides a permanent magnet synchronous motor does not have speedtransmitter's start-up detection device can start synchronous motor to synchronous motor's when will starting speed, acceleration, and the stationarity of rotational speed etc. data detect, and easy operation is convenient, and detection efficiency is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a part of the structure of the present invention;
FIG. 3 is a partial schematic structural view of the present invention;
FIG. 4 is a partial schematic structural view of the present invention;
fig. 5 is an enlarged schematic view of the structure at a in fig. 4 according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Referring to fig. 1 to 5, a start detection device of a permanent magnet synchronous motor non-speed sensor includes a mounting plate 1, an auxiliary start module 2 is fixedly disposed on the mounting plate 1, a detection module 3 is disposed on one side of the auxiliary start module 2, a measured motor placement module 4 is disposed on one side of the detection module 3, and the measured motor placement module 4 and the detection module 3 are both fixedly connected to the mounting plate 1.
Further, the auxiliary starting module 2 includes an auxiliary starting motor 26, the first motor fixing frame 23 of fixed connection is arranged below the auxiliary starting motor 26, a sliding groove which is symmetrically distributed is formed in the first motor fixing frame 23, a first guide rail 24 which is in sliding fit is arranged in the sliding groove, the first guide rail 24 is fixedly connected with the mounting plate 1, a first friction wheel 25 of fixed connection is arranged at the output end of the auxiliary starting motor 26, a first telescopic cylinder fixing frame 21 of fixed connection is arranged on one side, away from the first friction wheel 25, of the first motor fixing frame 23, a first telescopic cylinder 22 of fixed connection is arranged on the first telescopic cylinder fixing frame 21, the output end of the first telescopic cylinder 22 is fixedly connected with the first motor fixing frame 23, and the first telescopic cylinder fixing frame 21 is fixedly connected with the mounting plate 1.
Further, detection module 3 includes test gear 35, and test gear 35's both sides are equipped with the bearing frame 31 of symmetric distribution, and bearing frame 31 and mounting panel 1 fixed connection are equipped with the axle 37 of rotating the connection on the bearing frame 31, and axle 37 and test gear 35 fixed connection, the one end that axle 37 is close supplementary start module 2 is equipped with fixed connection second friction pulley 32, and the other end of axle 37 is equipped with fixed connection's third friction pulley 36.
Further, the detection module 3 further includes a rotation speed sensor 34, a detection end of the rotation speed sensor 34 is close to the test gear 35, the rotation speed sensor 34 is electrically connected with the data analysis processor, a sensor frame 33 fixedly connected with the rotation speed sensor 34 is arranged on the rotation speed sensor 34, and the sensor frame 33 is fixedly connected with the mounting plate 1.
Further, the module 4 is placed to the motor under test includes second motor mount 43, is equipped with the spout of symmetric distribution on the second motor mount 43, is equipped with sliding fit's second guide rail 44 in the spout, second guide rail 44 and mounting panel 1 fixed connection, the fixed detachable synchronous motor 45 that is equipped with on the second motor mount 43, the fixed detachable adapter sleeve 46 that is equipped with on synchronous motor 45's the output, the fixed connecting rod 47 that is equipped with of one end that synchronous motor 45 was kept away from to the adapter sleeve, the one end of connecting rod 47 is equipped with fixed connection's fourth friction pulley 48.
Further, the tested motor placing module 4 further comprises a second telescopic cylinder 42, an output end of the second telescopic cylinder 42 is fixedly connected with a second motor fixing frame 43, a second telescopic cylinder fixing frame 41 fixedly connected with the second telescopic cylinder 42 is arranged on the second telescopic cylinder 42, and the second telescopic cylinder fixing frame 41 is fixedly connected with the mounting plate 1.
When the device is used, the output end of a tested synchronous motor 45 is connected with a connecting sleeve 46, then the synchronous motor 45 is installed on a second motor fixing frame 43, then the first telescopic cylinder 22 and the second telescopic cylinder 42 are started, the first friction wheel 25 and the second friction wheel 32 are tightly pressed, the third friction wheel 36 and the fourth friction wheel 48 are tightly pressed, then the auxiliary starting motor 26 is started, the four friction wheels synchronously rotate under the static friction effect, the synchronous motor 45 is driven to rotate, the testing gear 35 rotates at the same time, and the rotating speed sensor 34 transmits collected rotating speed data to the data processor;
when the speed of the auxiliary starting motor 26 is increased to be close to the synchronous rotating speed of the synchronous motor 45, the synchronous motor 45 is connected with a power supply and simultaneously controls the output end of the first telescopic cylinder 22 to retract, the first friction wheel 25 and the second friction wheel 32 are separated, then the auxiliary starting motor 26 is turned off, the synchronous motor 45 drives, the test gear 35 rotates and transmits rotating speed data to the data processor through the rotating speed sensor 34;
and after the test is finished, the output end of the second telescopic cylinder 42 retracts, the power supply of the synchronous motor 45 is cut off, and the synchronous motor 45 is disassembled.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean 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 invention. 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.
The foregoing shows and describes the basic principles, essential 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 above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (4)
1. A starting detection device of a permanent magnet synchronous motor speed sensorless comprises a mounting plate (1), and is characterized in that an auxiliary starting module (2) is fixedly arranged on the mounting plate (1), a detection module (3) is arranged on one side of the auxiliary starting module (2), a detected motor placing module (4) is arranged on one side of the detection module (3), and the detected motor placing module (4) and the detection module (3) are both fixedly connected with the mounting plate (1);
the auxiliary starting module (2) comprises an auxiliary starting motor (26), a first motor fixing frame (23) fixedly connected is arranged below the auxiliary starting motor (26), symmetrically distributed sliding grooves are formed in the first motor fixing frame (23), first guide rails (24) in sliding fit are arranged in the sliding grooves, the first guide rails (24) are fixedly connected with the mounting plate (1), and first friction wheels (25) fixedly connected are arranged at the output end of the auxiliary starting motor (26);
the detection module (3) comprises a test gear (35), bearing seats (31) which are symmetrically distributed are arranged on two sides of the test gear (35), the bearing seats (31) are fixedly connected with the mounting plate (1), a shaft (37) which is rotatably connected is arranged on each bearing seat (31), the shaft (37) is fixedly connected with the test gear (35), one end, close to the auxiliary starting module (2), of each shaft (37) is fixedly connected with a second friction wheel (32), and the other end of each shaft (37) is provided with a third friction wheel (36) which is fixedly connected;
the detection module (3) further comprises a rotating speed sensor (34), the detection end of the rotating speed sensor (34) is close to the test gear (35), and the rotating speed sensor (34) is electrically connected with the data analysis processor;
the measured motor placing module (4) comprises a second motor fixing frame (43), sliding grooves are symmetrically distributed in the second motor fixing frame (43), a sliding fit second guide rail (44) is arranged in the sliding grooves, the second guide rail (44) is fixedly connected with the mounting plate (1), a detachable synchronous motor (45) is fixedly arranged on the second motor fixing frame (43), a detachable connecting sleeve (46) is fixedly arranged at the output end of the synchronous motor (45), a connecting rod (47) is fixedly arranged at one end, far away from the synchronous motor (45), of the connecting sleeve, and a fourth friction wheel (48) of fixed connection is arranged at one end of the connecting rod (47).
2. The device for detecting the starting of the PMSM non-speed sensor according to claim 1, characterized in that a first telescopic cylinder fixing frame (21) fixedly connected is arranged on one side of the first motor fixing frame (23) far away from the first friction wheel (25), a first telescopic cylinder (22) fixedly connected is arranged on the first telescopic cylinder fixing frame (21), the output end of the first telescopic cylinder (22) is fixedly connected with the first motor fixing frame (23), and the first telescopic cylinder fixing frame (21) is fixedly connected with the mounting plate (1).
3. The sensorless starting detection device of the permanent magnet synchronous motor according to claim 1, wherein the rotation speed sensor (34) is provided with a fixedly connected sensor frame (33), and the sensor frame (33) is fixedly connected with the mounting plate (1).
4. The device for detecting the starting of the PMSM non-speed sensor according to claim 1, wherein the tested motor placing module (4) further comprises a second telescopic cylinder (42), the output end of the second telescopic cylinder (42) is fixedly connected with a second motor fixing frame (43), a second telescopic cylinder fixing frame (41) fixedly connected with the second telescopic cylinder (42) is arranged on the second telescopic cylinder (42), and the second telescopic cylinder fixing frame (41) is fixedly connected with the mounting plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222013982.0U CN217879549U (en) | 2022-07-29 | 2022-07-29 | Permanent magnet synchronous motor does not have speed sensor's start-up detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222013982.0U CN217879549U (en) | 2022-07-29 | 2022-07-29 | Permanent magnet synchronous motor does not have speed sensor's start-up detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217879549U true CN217879549U (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222013982.0U Active CN217879549U (en) | 2022-07-29 | 2022-07-29 | Permanent magnet synchronous motor does not have speed sensor's start-up detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217879549U (en) |
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2022
- 2022-07-29 CN CN202222013982.0U patent/CN217879549U/en active Active
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