CN201867453U

CN201867453U - Steering testing device for electric motor

Info

Publication number: CN201867453U
Application number: CN2010201459430U
Authority: CN
Inventors: 邹维克; 彭建学
Original assignee: SHANGHAI AOBOOR ELECTRONIC CO Ltd
Current assignee: SHANGHAI AOBOOR ELECTRONIC CO Ltd
Priority date: 2010-03-24
Filing date: 2010-03-24
Publication date: 2011-06-15
Anticipated expiration: 2020-03-24

Abstract

The utility model discloses a steering testing device for an electric motor, which comprises a driving module of the electric motor, a vibrating sensor and a steering recognizing module. The driving module of the electric motor provides working voltage to the electric motor. The vibrating sensor is used for testing the vibrating signals of the electric motor in the circumferential tangential direction of a stator. The steering recognizing module is used for recognizing the phase difference information of the vibrating signals relative to the working voltage on-off so as to estimate the steering direction of the electric motor. In the technical scheme provided by the embodiment, only the vibrating sensor needs to be arranged on an electric motor shell or an electric motor base. The vibrating sensor does not need to be positioned on a rotating shaft of the electric motor or other locations difficult to be placed. The steering testing device has the advantages that the installation process is easy, the use is convenient, and other operations are unnecessary during the testing process. Therefore, the steering testing device has convenient installment and testing process, and the production and testing efficiency of the electric motor is improved.

Description

A kind of motor turns to pick-up unit

Technical field

The utility model relates to electric motors, more particularly, relates to a kind of motor and turns to pick-up unit.

Background technology

For the detection that realizes that motor turns to, need motor to turn to pick-up unit to detect usually.Existing motor turns to pick-up unit to be divided into several classes of photo-electric, magnetic inductive or mechanical contact-type, but above-mentioned detection device includes rotatable parts and stationary parts basically.When detecting, earlier rotatable parts are installed on the shaft of motor, again stationary parts is installed on the housing of motor or on the supporting base of motor, rotatable parts are followed the rotor rotation of motor, judge that with respect to the physical signalling of rotatable parts motor turns to by detecting stationary parts.

Though existing motor turns to pick-up unit can judge the rotation direction of motor, but existing motor turns to pick-up unit rotatable parts need be installed on the shaft of motor, pick-up unit complex structure not only, and fitting operation is loaded down with trivial details, has limited motor production test efficient.

The utility model content

In view of this, the utility model provides a kind of motor to turn to pick-up unit, so that carry out under the situation of loaded down with trivial details installation process not needing, just can realize the rotation direction of motor rotor is detected.

The utility model is achieved in that

A kind of motor turns to pick-up unit, comprising: motor drive block, vibration transducer and turn to identification module;

Described motor drive block is used for the operating voltage to described motor input break-make, and provides the signal synchronous with the operating voltage of described break-make to the described identification module that turns to;

Described vibration transducer is used to detect the vibration signal of the stator circumference tangential direction of described motor;

The described identification module that turns to is used to discern the phase differential of the described vibration signal signal synchronous with respect to the operating voltage of described break-make, judges the rotation direction of described motor with this.

Preferably, turn in the pick-up unit, also comprise turning to indicating member at above-mentioned a kind of motor;

The described indicating member that turns to is used to receive the described judged result that turns to identification module that described motor is turned to, and indicates or show the direction of described motor rotation.

Preferably, turn in the pick-up unit at above-mentioned a kind of motor, described vibration transducer is arranged on the shell of described motor.

Preferably, turn in the pick-up unit at above-mentioned a kind of motor, described vibration transducer is arranged on the supporting base of described motor.

Preferably, turn in the pick-up unit at above-mentioned a kind of motor, described motor drive block is a power supply.

The technical scheme that the utility model provides only need be arranged on vibration transducer on motor casing or the motor supporting base, does not need to be arranged on the shaft of motor it or other positions that are difficult for laying, so installation process is very simple, easy to use.Therefore, installation process and testing process are all very convenient, thereby have improved motor production test efficient.

Description of drawings

In order to be illustrated more clearly in the technical solution of the utility model, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is a fundamental diagram provided by the utility model;

Fig. 2 is the synoptic diagram of an embodiment provided by the utility model;

Fig. 3 is the synoptic diagram of another embodiment provided by the utility model.

Embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

Fundamental diagram of the present utility model sees also Fig. 1, comprising: motor drive block 1, vibration transducer 2 and turn to identification module 3; Motor drive block 1 is used for the operating voltage to motor 5 input break-makes, and to turning to identification module 3 that the signal synchronous with the operating voltage of break-make is provided; Vibration transducer 2 is used to detect the vibration signal of the stator circumference tangential direction of motor 5; Turn to identification module 3, be used to discern the phase differential of the vibration signal signal synchronous, judge the rotation direction of motor 5 with this with respect to the operating voltage of break-make.Wherein, the utility model also comprises and turns to indicating member 4; Turn to indicating member 4, be used to receive the judged result that turns to 3 pairs of motor 5 of identification module to turn to, and indicate or show the direction of motor 5 rotations.

Introduce the function of each module above, introduced its principle of work below:

When the motor operating voltage is connected, motor rotor will produce acceleration torque on specific turning to, and when the motor operating voltage is cut off, motor rotor will produce deceleration torque on former turning to, and also promptly produce acceleration torque turning to former switched in opposite.Therefore, when the operating voltage break-make of motor, rotor will produce torque at circumferencial direction to be changed, the direction that torque changes has reflected the variation that turns to, and the torque of rotor variation causes that rotor circumference tangential vibrations, this vibration can be coupled on the stator and pedestal thereof of motor, therefore, by detecting stator or pedestal, just can detect turning to of motor at the phase differential of the tangential vibration signal of rotor circumference with respect to motor operating voltage break-make.

Turn to the detection step as follows:

1, vibration transducer 2 is installed on motor 5 shells or the pedestal;

2, motor drive block 1 is given the operating voltage of motor 5 input break-makes, and motor 5 produces vibration at circumferencial direction under the operating voltage effect of break-make;

3, vibration transducer 2 detects motor 5 in a circumferential direction vibration signal under the voltage effect of break-make;

4, turn to identification module 3 receive motor 5 that vibration transducers 2 detect in a circumferential direction vibration signal and motor drive module 1 output with the synchronous signal of motor 5 break-make operating voltage, according to the phase differential of above-mentioned vibration signal and synchronizing signal, judge turning to of motor 5;

5, turn to indicating member 4 to receive the judged result that turns to 3 pairs of motor 5 of identification module to turn to, and indicate or show.

Embodiment 1 sees also Fig. 2, and this figure is a concrete application scenarios of the present utility model.Wherein, vibration transducer 2 is arranged on the shell on motor 5 tops.Arrow on motor 5 is represented the torque direction that rotor quickens or slows down, and the arrow on vibration transducer 2 represents that this sensor is subjected to the torque direction that opposite rotor quickens or slows down.

Embodiment 2 is referring to Fig. 3, and this figure is another concrete application scenarios of the present utility model.Motor 5 is compressed by cylinder 7, and in order to improve the needs of test speed, vibration transducer 2 on-line equipments and directly do not contact with motor 5 on the supporting base 6 of motor 5.Therefore, of the present utility model to be applied to on-the-spot dirigibility very high, is applicable to various working condition.

In the above-described embodiments, the utility model can offer the operating voltage of motor 5 break-makes by motor drive block 1, rotor along the circumferential direction produces corresponding vibration, motor 5 stators and pedestal 6 thereof also can produce the vibration of circumferencial direction, vibration transducer detects at stator circumference tangential direction vibration signal, turns to identification module to judge the rotation direction of motor 5 with respect to the phase differential of operating voltage break-make according to this vibration signal.

The utlity model has advantage simple in structure, easy to use, thereby can realize the fast detecting that motor turns to.Need to prove that Fig. 2, embodiment shown in Figure 3 are the preferred embodiment that the utility model is introduced, those skilled in the art can design more embodiment on this basis fully, therefore do not give unnecessary details herein.

Need to prove that also the concrete pattern of vibration transducer does not influence the claim of this patent.To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims

1. a motor turns to pick-up unit, it is characterized in that, comprising: motor drive block, be arranged on the vibration transducer on the motor and turn to identification module;

2. a kind of motor according to claim 1 turns to pick-up unit, it is characterized in that, also comprises turning to indicating member;

3. a kind of motor according to claim 1 turns to pick-up unit, it is characterized in that, described vibration transducer is arranged on the shell of described motor.

4. a kind of motor according to claim 1 turns to pick-up unit, it is characterized in that, described vibration transducer is arranged on the supporting base of described motor.

5. a kind of motor according to claim 1 turns to pick-up unit, it is characterized in that, described motor drive block is a power supply.