CN2620906Y - Three-speed motor control training device - Google Patents

Abstract

The utility model relates to a three-speed motor control training device, belonging to a teaching demonstration mould, which includes a control circuit board and a three-speed squirrel cage type asynchronous electrical motor M. The control circuit board is composed of a wiring connection mounting board (1) arranged with components, testing meters and a trunking board (2). All the components and the testing meters are regularly arranged on the wiring connection board according to the wiring connection rules of the control circuit. All the components and the testing meters are arranged with an automatic air switch QF, fuses FU, contactors KM, thermorelays FR, a connection terminal board XT, a voltmeter V, current meters A, indicator lights EL, and push-button switches SB. All the components, the testing meters and the electrical motor M are electrically connected according to the three-speed motor control circuit. All the components, the testing meters and the indicator lights of the utility model are simple, clear, and standard in arrangement. The connections of the leads are intuitive, and convenient for standard, intuitive teaching and demo operation.

Description

Three-speed motor Control Training device

Technical field

The utility model belongs to the teaching mould technical field, makes the device of skill training and examination, evaluation in fact in particular for electrical towage control circuit.

Background technology

In the Electric Traction course teaching of school especially skilled workers school, relate to the teaching of three-speed motor operation circuit, except allowing the student grasp theoretically the ABC of operation circuit, it more is the mode of connection that will allow the student from practical operation, be familiar with the principle of work of operation circuit intuitively and expertly grasp operation circuit, whether in the examination of electrician specialty workman's vocational skills and identifying, it is correct also to need the operation circuit that the device of a cover standard checks the examination personnel of institute to run in.Yet, in existing school instruction, be mostly that making some coarse, simple and crude operation circuit trainers by teacher oneself according to the needs of teaching starts to learn for the student.These Electrical Engineering Practice trainers normally teacher are made according to own understanding and teaching needs to teaching material, and randomness is bigger, and standardization is relatively poor, do not possess versatility yet, the practical operation knowledge standard that causes the student to acquire differs, and level is uneven, being poor in basic training of grasp; Simultaneously, do not have unified and standard teaching and training device, brought certain inconvenience yet to teachers ' teaching.In addition, in existing electrician's vocational skills examination and identifying, that adopt or traditional checks the operation circuit wiring correctness that is run in by the examination personnel one by one by the chief examiner teacher, still the device that does not have the cover examination check workman practical operation level that relatively standard is perfect, cause disunity, the factor and individual subjective factor of appraisal standards big easily, the accuracy and the fairness of influence examination qualification result.

Summary of the invention

The purpose of this utility model provides a kind of course of work that can demonstrate the three-speed motor operation circuit intuitively of unifying standard in order to overcome above-mentioned the deficiencies in the prior art just, can also be used for the mode of connection of student's hands-on three-speed motor operation circuit and operation steps, and can be used to examine the three-speed motor Control Training device of identifying student's physical cabling operant level.

The purpose of this utility model is achieved by the following technical solution.

This three-speed motor Control Training device includes control circuit board and three fast squirrel-cage asynchronous motor M, described control circuit board is that the wiring installing plate is provided with components and parts, test instrumentation and wire casing plate, each components and parts and test instrumentation are arranged regularly by operation circuit wiring rule on the wiring installing plate, set components and parts and test instrumentation have automatic air-break switch QF, fuse FU, contactor KM, electrothermal relay FR, terminal board XT, voltage table V, reometer A, display lamp EL, pushbutton switch SB, each components and parts, test instrumentation, be electrically connected by the three-speed motor operation circuit between the motor M.

The location arrangements of each components and parts on the wiring installing plate is divided into left and right two big zones, and left area first row is arranged in order automatic air-break switch QF, three-phase fuse FU ₁, two-phase fuse FU ₂, second row is arranged 4 contactor KM ₁～KM ₄, the third line is arranged 3 electrothermal relay FR ₁～FR ₃, fourth line is arranged terminal board XT, is provided with the wire casing plate between the periphery of left area and the per two row components and parts, and all leads that connect components and parts all are arranged in the wire casing plate; Zone, the right first row are vertically arranged 4 display lamp EL ₁～EL ₄, secondary series is vertically arranged 1 voltage table V and 3 reometer A ₁～A ₃, 4 pushbutton switch SB of horizontally set below display lamp and reometer ₁～SB ₄

Each components and parts also can be set on the wiring installing plate, and left area first row is arranged in order automatic air-break switch QF, three-phase fuse FU ₁, two-phase fuse FU ₂, second row is arranged 5 contactor KM ₁～KM ₅, the third line is arranged 3 electrothermal relay FR ₁～FR ₃With 2 time relay KT ₁, KT ₂, fourth line is arranged terminal board XT, is provided with the wire casing plate between the periphery of left area and the per two row components and parts, and all leads that connect components and parts all are arranged in the wire casing plate; Zone, the right first row are vertically arranged 4 display lamp EL ₁～EL ₄, secondary series is vertically arranged 1 voltage table V and 3 reometer A ₁～A ₃, 2 pushbutton switch SB of horizontally set below display lamp and reometer ₁, SB ₂

On contactor, also be plugged with auxiliary contact.

Three-speed motor operation circuit principle is the knowledge that the electrician specialty those of ordinary skill is known altogether, also is the content that must learn in electrician's teaching materials at different levels.Components and parts that the utility model is required with the three-speed motor operation circuit and test instrumentation all reasonably are provided with in order according to the wiring characteristics of its operation circuit and are installed on the wiring installing plate, and the wire casing plate has been installed on the wiring installing plate on demand, can between each components and parts, have been carried out the soft wiring of laying easily; Set measuring instrument can detect the working condition of operation circuit and the course of work of three-speed motor control device at any time.Each components and parts that the utility model is installed on the wiring installing plate are provided with succinct, clear, lead connects directly perceived, visual, instrument, display lamp are arranged in order, button is convenient to operation, be convenient to operation circuit is carried out fault analysis, inspection, eliminating, be applied to have certain practical value on the industrial electric opertaing device.Use the utility model, the teacher demonstrates after can carefully connecting the wire, and the principle of work and the process of three-speed motor control device shown intuitively, can also be done it yourself after the wiring by the student, and whether the check wiring is correct.In examination is identified, the control circuit board that is run in addition by the examination personnel can be inserted the operation circuit that terminal board replaces this device, the correctness of its winding displacement of energising check.

Further set forth the utility model below in conjunction with Figure of description.

Description of drawings

Fig. 1 is the manually front view of control of the utility model,

Fig. 2 is A '-A ' cut-open view of Fig. 1,

Fig. 3 is B '-B ' cut-open view of Fig. 1,

Fig. 4 is the wiring schematic diagram of terminal board when manually controlling,

Fig. 5 is the electrical schematic diagram of three-speed motor manual overvide,

Fig. 6 is the utility model front view of control automatically,

Fig. 7 is C '-C ' cut-open view of Fig. 6,

Fig. 8 is D '-D ' cut-open view of Fig. 6,

Fig. 9 is the wiring schematic diagram of terminal board when controlling automatically,

Figure 10 is the electrical schematic diagram of three-speed motor automaton.

Embodiment

As Fig. 1～shown in Figure 3, on wiring installing plate 1, be provided with each components and parts and test instrumentation are installed, the position distribution of each components and parts on wiring installing plate 1 is divided into left and right two big zones, and left area first row is arranged in order automatic air-break switch QF, three-phase fuse FU ₁, two-phase fuse FU ₂, second row is arranged 4 contactor KM ₁～KM ₄, the third line is arranged 3 electrothermal relay FR ₁～FR ₃, fourth line is arranged terminal board XT, between the periphery of left area and the per two row components and parts wire casing plate 2 is set all, and all leads that connect components and parts all are arranged in the wire casing plate; Zone, the right first row are vertically arranged 4 display lamp EL ₁～EL ₄, secondary series is vertically arranged 1 voltage table V and 3 reometer A ₁～A ₃, 4 pushbutton switch SB of horizontally set below display lamp and reometer ₁～SB ₄Be electrically connected by Fig. 4 and Fig. 5 between each components and parts, test instrumentation and the motor M, just constituted the utility model.Also can a contactor KM be set as Fig. 6～second row in wiring installing plate left area shown in Figure 10 more ₅, 2 time relay KT are set at the third line more ₁, KT ₂, the corresponding button switch just only need be provided with two.The control three-speed motor has dual mode: a kind of is that (Fig. 1～Fig. 5), another kind are automatic control (Fig. 6～Figure 10) in manual control.For ease of wiring, the auxiliary contact of also can on contactor, pegging graft.Three-phase fuse FU is set ₁Can form protection, two-phase fuse FU to main circuit ₂Control loop is protected electrothermal relay FR ₁～FR ₃Can form overload protection to motor.Power turn-on switch QF, voltage table V, display lamp EL ₁Show whether operation circuit voltage is normal.As shown in Figure 5, when manually controlling, press the button switch S B ₁, KM ₁Get electric closure, motor M gets the electric low-speed running (710 rev/mins) that carries out, at this moment, and display lamp EL ₂With reometer A ₁Demonstration is arranged; Press the button switch S B ₄, KM ₁Disconnect, motor shuts down; Utilize the motor rotatory inertia then to press SB ₂, KM ₂Get electric closure, motor begins middling speed running (950 rev/mins), at this moment, and display lamp EL ₃With reometer A ₂Demonstration is arranged, press SB ₄, motor shuts down again; Utilize the rotatory inertia of motor middling speed to press SB again ₃, KM ₃Get electric closure, motor begins to run up (1440 rev/mins), at this moment, and display lamp EL ₄With reometer A ₃Demonstration is arranged, press SB again ₄, motor shuts down again.As shown in figure 10, when controlling automatically, press the button switch S B ₂, KM ₅Get electric closure, KM ₁Closure, KT ₁Must be electric, motor begins low-speed running, behind the running certain hour, time relay KT ₁The normally open contact closure, normally closed interlock disconnects, thereupon KM ₂Get electric closure, KT ₂Must be electric, while KM ₁Disconnect, motor begins the middling speed running, behind the running certain hour, and time relay KT ₂The normally open contact closure, normally closed interlock disconnects, KM ₄Get electric closure, motor begins to run up, and presses SB ₁, motor shuts down.Be simplification device, also can change the operational situation that replaces motor, can not insert motor with the demonstration of display lamp.The utility model can show the principle of work and the course of work when three-speed motor is manually controlled and controlled automatically intuitively.

Claims (4)

1, three-speed motor Control Training device, the wiring that is used to demonstrate the course of work of three-speed motor operation circuit and carry out the three-speed motor operation circuit is trained and examination, it is characterized in that, it includes control circuit board and three fast squirrel-cage asynchronous motor M, described control circuit board is that wiring installing plate (1) is provided with components and parts, test instrumentation and wire casing plate (2), each components and parts and test instrumentation are arranged regularly by operation circuit wiring rule on the wiring installing plate, set components and parts and test instrumentation have automatic air-break switch QF, fuse FU, contactor KM, electrothermal relay FR, terminal board XT, voltage table V, reometer A, display lamp EL, pushbutton switch SB, each components and parts, test instrumentation, be electrically connected by the three-speed motor operation circuit between the motor M.

2, trainer according to claim 1, it is characterized in that, described control circuit board, the location arrangements of its each components and parts on wiring installing plate (1) are divided into left and right two big zones, and left area first row is arranged in order automatic air-break switch QF, three-phase fuse FU ₁, two-phase fuse FU ₂, second row is arranged 4 contactor KM ₁～KM ₄, the third line is arranged 3 electrothermal relay FR ₁～FR ₃, fourth line is arranged terminal board XT, is provided with wire casing plate (2) between the periphery of left area and the per two row components and parts, and all leads that connect components and parts all are arranged in the wire casing plate; Zone, the right first row are vertically arranged 4 display lamp EL ₁～EL ₄, secondary series is vertically arranged 1 voltage table V and 3 reometer A ₁～A ₃, 4 pushbutton switch SB of horizontally set below display lamp and reometer ₁～SB ₄

3, trainer according to claim 1 is characterized in that, each components and parts also can be set on wiring installing plate (1), and left area first row is arranged in order automatic air-break switch QF, three-phase fuse FU ₁, two-phase fuse FU ₂, second row is arranged 5 contactor KM ₁～KM ₅, the third line is arranged 3 electrothermal relay FR ₁～FR ₃With 2 time relay KT ₁, KT ₂, fourth line is arranged terminal board XT, is provided with wire casing plate (2) between the periphery of left area and the per two row components and parts, and all leads that connect components and parts all are arranged in the wire casing plate; Zone, the right first row are vertically arranged 4 display lamp EL ₁～EL ₄, secondary series is vertically arranged 1 voltage table V and 3 reometer A ₁～A ₃, 2 pushbutton switch SB of horizontally set below display lamp and reometer ₁, SB ₂

4, trainer according to claim 1 is characterized in that, also is plugged with auxiliary contact on contactor.

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