CN110794304A

CN110794304A - Micro-special motor simulation load

Info

Publication number: CN110794304A
Application number: CN201911107251.9A
Authority: CN
Inventors: 索盼龙
Original assignee: Xi'an Wanxiang Aviation Technology Co Ltd
Current assignee: Xi'an Wanxiang Aviation Technology Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-02-14

Abstract

The invention discloses a micro special motor simulation load, which comprises a body and a base, wherein the body is fixed above one side of the base, the body is provided with a torque display instrument and a rotating speed display instrument, the body is also provided with a group of electromagnetic coils, a light weight measuring turntable is arranged in the middle of the electromagnetic coils, the base is also provided with a bracket for fixing a V-shaped clamp, an object clamped by the V-shaped clamp is positioned on one side of the light weight measuring turntable and is kept horizontal with the central position of the light weight measuring turntable, the invention only conducts energy through one ring to the ring, and a large number of errors caused by mechanical connection and rotational inertia in the order of magnitude load simulation process are greatly reduced; the control of load adjustment is more accurate, and the precision can reach 10 g.cm; the device has various built-in functions, such as angle measurement and torque conversion, accurate algorithm control, digital display, overload protection and the like; the necessary conditions of the electrical performance test of the micro-special motor during delivery and regular inspection tests are completed by simulating the accurate rated load.

Description

Micro-special motor simulation load

Technical Field

The invention relates to an inspection tester, in particular to a micro-special motor simulation load.

Background

With the increasing degree of intelligence, micro-motors are increasingly used in various electronic automatic control mechanical devices, and the micro-motors cover the fields of household appliances, office automation, automobile industry, medical instruments, aviation industry, weaponry and the like. Statistically, the total output of global micro-motors exceeds 140 hundred million by 2015. In the production, operation and design process of the micro-motor, the performance, parameters and the like of the motor are very necessary to be tested, whether the tested motor meets the regulations of relevant technical requirements or not is periodically detected so as to carry out maintenance and design improvement, and the key parameters in the performance test of the motor need to simulate the electrical performance and the mechanical performance under the rated state.

The current load simulation method and device used at home and abroad is shown in fig. 5, and the torque of a micro-motor in a certain specific output torque range (such as 2-100 Nm). The simulation of rated load needs to transmit the transmission system of the tested device to the testing system, and because the output torque of the tested micro motor is very small and even has an order of magnitude with the rotational inertia of the loading system, due to the factors of materials, processes and the like, great errors are caused.

Disclosure of Invention

The invention aims to provide a micro special motor simulation load to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a little special motor artificial load, includes body and base, the body is fixed in base one side top, is equipped with torque indicator and rotational speed display appearance on the body, still is equipped with a set of solenoid on the body, is equipped with the light weight in the middle of the solenoid and measures the carousel, still is equipped with the support that is used for fixed V type anchor clamps on the base, and the object that V type anchor clamps were held is located one side of light weight measurement carousel, and keeps the level with the central point of light weight measurement carousel.

As a further scheme of the invention: and a level ruler is also arranged on the base.

As a further scheme of the invention: one set of electromagnetic coils comprises a left coil winding and a right coil winding.

As a further scheme of the invention: the back of the body is provided with a power switch.

As a further scheme of the invention: the back of the body is provided with a power input module.

As a further scheme of the invention: the power input module is connected with 220V alternating current commercial power.

As a further scheme of the invention: the body is also provided with a power indicator light.

Compared with the prior art, the invention has the beneficial effects that: the invention conducts energy only through one ring, thus greatly reducing a large amount of errors caused by mechanical connection and rotational inertia in the load simulation process of the order of magnitude; the control of load adjustment is more accurate, and the precision can reach 10 g.cm; the device has various built-in functions, such as angle measurement and torque conversion, accurate algorithm control, digital display, overload protection and the like; the necessary conditions of the electrical performance test of the micro-special motor during delivery and regular inspection tests are completed by simulating the accurate rated load.

Drawings

Fig. 1 is an overall structural view of the present invention.

Fig. 2 is an overall block diagram of a simulation load test bed system of the micro-special motor.

Fig. 3 is a core principle illustration diagram of a simulation load test bed of the micro special motor.

Fig. 4 is a rear view of the present invention.

Fig. 5 is a schematic diagram of the prior art.

In the figure, 1-power input module, 2-power switch, 3-torque display instrument, 4-rotating speed display instrument, 5-electromagnetic coil, 6-light weight measuring turntable, 7-V type clamp, 8-level bar, 9-body, 10-base, 11-power source, 12-coupling and 13-load.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, example 1: in the embodiment of the invention, the micro special motor simulation load comprises a body 9 and a base 10, wherein the body 9 is fixed above one side of the base 10, the body 9 is provided with a torque display instrument 3 and a rotating speed display instrument 4, the body 9 is also provided with a group of electromagnetic coils 5, a light weight measuring turntable 6 is arranged in the middle of the electromagnetic coils 5, the base 10 is also provided with a bracket for fixing a V-shaped clamp 7, and an object clamped by the V-shaped clamp 7 is positioned on one side of the light weight measuring turntable 6 and is kept horizontal to the center position of the light weight measuring turntable 6. The power supply is input, and the test bed supplies power to the mains supply AC 220V; the power switch of the test bed is turned on, and meanwhile, the indicator light is turned on to prompt that the test bed supplies power; the torque display instrument displays the torque of the tested motor; the rotating speed display instrument is used for displaying the rotating speed of the tested motor; the number of turns, materials, weight and the like of the two groups of electromagnetic coils are completely equal; the light-weight measuring turntable is used for transmitting the torque and the rotating speed of the motor; the adjustable structure of the V-shaped clamp can meet the fixation of motors with different sizes; and a level ruler for indicating so as to adjust the level of the test bed.

Fig. 3 shows a core principle illustration diagram of a novel micro special motor simulation load test bed, and the measurement utilizes the eddy current braking principle, when a disc rotates, a magnetic field and the magnetic field at any point on the inner surface of the disc generate alternating change, so that 'eddy current' is induced, and under the coupling action of the 'eddy current' and the magnetic field, braking torque is generated on the disc. Because the disc is fixed on the output shaft of the motor, the braking force can enable the two magnetic poles to deflect, the deflection angle shows a stable braking characteristic curve that the torque depends on the rotating speed, and the torque generated on the disc can be indicated by calibrating the deflection angle.

Fig. 4 shows a simulation load part diagram of the simulation load test bed of the novel micro special motor. The test bed uses the electrified coil as a magnetic pole, the motor is electrified to work, and the output shaft drives the disc to rotate. The disc is positioned in the two electromagnet poles, and when the disc is not electrified, the two completely consistent electromagnets keep balance; when the disc is electrified, the electromagnet can generate braking torque opposite to the rotation direction on the disc, and the electromagnet deflects under the action of the torque. The torque of the motor to be measured can be read according to the scale after the deflection angle is corrected and calibrated.

When the test is carried out, the test bed is firstly placed on a horizontal operation platform, a level meter is checked, and the four-pin nut is adjusted to ensure that the test bed is horizontally placed. Then fixing the measuring turntable on the output shaft of the tested motor, slowly putting the turntable into the gap of the electromagnetic iron magnetic core (note that the turntable does not touch any side), and simultaneously putting the motor on the V-shaped clamp, and adjusting the height to enable the motor shaft to be slightly higher than the electromagnetic iron magnetic core.

And after the detection is correct, the tested motor is electrified, and the motor shaft drives the measuring turntable to rotate. The tester AC220 power is turned on, turning on the tester switch. The display of the tachometer is the rotating speed of the motor, the input power supply of the motor is adjusted by referring to the motor nameplate, so that the rotating speed of the motor is kept at the rated rotating speed, and the display of the torquemeter is the torque of the tested motor at the rated rotating speed.

Example 2: on the basis of embodiment 1, a level 8 is further provided on the base 10. The electromagnetic coil 5 includes two coil windings on the left and right. The back of the body 9 is provided with a power switch 2. The back of the body 9 is provided with a power input module 1. The power input module 1 is connected with 220V alternating current commercial power. The body 9 is also provided with a power indicator light.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a little special motor artificial load, includes body (9) and base (10), its characterized in that, body (9) are fixed in base (10) one side top, be equipped with torque display appearance (3) and rotational speed display appearance (4) on body (9), still be equipped with a set of solenoid (5) on body (9), be equipped with light weight measurement carousel (6) in the middle of solenoid (5), still be equipped with the support that is used for fixed V type anchor clamps (7) on base (10), the object that V type anchor clamps (7) were centre gripping is located one side of light weight measurement carousel (6), and keep the level with the central point of light weight measurement carousel (6).

2. A miniature motor simulation load according to claim 1, wherein a level (8) is further provided on said base (10).

3. A microtest motor dummy load according to claim 2, characterised in that a set of electromagnetic coils (5) comprises two coil windings, left and right.

4. A microtest motor dummy load according to any one of claims 1-3, characterised in that the back of the body (9) is provided with a power switch (2).

5. A microtest motor dummy load according to claim 1, characterised in that the back of the body (9) is provided with a power input module (1).

6. A micro-special motor analog load according to claim 5, characterized in that the power input module (1) is connected with 220V AC mains.

7. A microtest motor dummy load according to claim 1, characterised in that the body (9) is also provided with a power indicator light.