SU656944A1 - Hoist-addressing device - Google Patents

Description

one

The invention relates to the field of hoisting-and-transport devices and can be used to stop the load-carrying body of the elevator at a predetermined level of loading and unloading LOADING PLATFORMS.

The closest technical solution of the known ones is the elevator addresser, which contains a floor impulse sensor, generates impulses during the passage of floors, a descrambler of impulses and equipped with an indicator of the position of the load-carrying body of the program-control unit, the output of which is connected to the control circuit of the elevator drive l.

The disadvantages of this addressee are relatively complex construction and lack of information with:; the position of the load-carrying body when the latter moves between floors.

The aim of the invention is to simplify the design and increase operational safety by more precisely indicating the position of the load-carrying body.

This goal is achieved due to the fact that in the proposed elevator sender, the pre-diffuser of pulses contains a relay with opening and closing contacts and a single-phase stepper motor of the right rotation and a single-phase stepper motor of the left rotation of the pointer installed on the axis of the position indicator. position, the addressee, is supplied with a DC power source with negative and positive terminals, connected via a disconnecting contact of the relay to the beginnings of stepper motor windings at the position of the load-carrying body at the level of the floor, and when the load-carrying organization is located between floors, connected through the closing contacts of the relay to the ends windings of stepper motors.

FIG. Figure 1 shows the kinematic scheme of the described address 0 of the lift body; in fig. 2 - index of the position of the carrying body; in fig. 3 - the principal electrical diagram of the addressee; in fig. 4 - control circuit diagram

5 driven lift.

Claims (2)

The address contains two single-phase stepper motors 1 and 2 with an active rotor and magnetic fixation, similar, for example, to motors of secondary electric clocks. Stepper motors are planted on a common axis with an arrow 3 of the indicator of the position of the body. Since single-phase stepper motors are not reversible, the shafts of motors 1 and 2 are connected so that, when the alternating polarity is applied to the motor 1, the arrow 3 moves, for example, to the right, and when the pulse is applied to the engine 2, moves, for example, to the right. On the fixed dial 4 there are divisions with the number of the floor. The angular step of the floor divisions on the q. Dial 4 is equal to two steps of engines 1 and 2. The programming unit consists of a movable track sensor 5, for example, of induction type, fixed on the pointer b by lock 7 and moved around dial 4 by means of knob 8 .; The electrical circuit of the addressee is powered by a constant voltage source. The circuit contains a relay 9, which, through its expansion contacts 9.1 and 9.2, connects the positive terminal of the power source to the beginning of the winding of the stepping motor with the load carrying body at the floor level. When positioned, the body of the body between the floors of the relay 9 through its closing contacts 9.3 3.4 connects the positive terminal of the power source to the end of the winding of the stepper motor. The floor sensor 10 pulses, for example, of the induction type: is connected to the relay 9, turned on when the floor plate is inserted into the working gap of the sensor 10. The coils of the elevator drive contactors 12 and 13 are connected to the start buttons 14 and 15, which are blocked by the block contacts 12, 1 and 13.1. The circuit also contains a relay 16, the start buttons are connected to the 17-stop button, in series with which the switch 16.1 of the relay .16 is turned on, the coil of which is connected to the MOBILE track sensor 5, the closing block blocks 12.2 and 13.2 are connected to the beginning windings of stepper motors. The addressee works in the following way. The operator installs the sensor of the 5th programmer unit opposite the de Lenin of the required floor on the dial of 5 te 4 and presses button 15, depending on the required direction of movement of the load-carrying body up or down. In this case, the contactor 12 is turned on, for example, the load-carrying unit starts moving upwards and the stepper motor winding connects. When the floor plate 11 leaves the working gap of the sensor 10, the relay 9 switches on and connects the positive power supply terminal to the end of the winding, motor 1 through its short circuit. which at the same time makes one step. As a result, arrow 3 moves and indicates to the operator the location of the load carrying body between floors. When the floor plate enters the gap of the sensor 10, the relay 9 is disconnected and through its breaker contacts connects the positive terminal of the power source to the start of the motor winding 1, which takes the second step, and arrow 3 indicates the position of the load-carrying body at the floor level. The movement is continued until arrow 3 enters the working gap of sensor 5 of the programming unit. In this case, a snubber relay of 16 v. Will be charged, will break the power supply circuit of the contactor 12 and will make an exact shutdown of the load-carrying body at the level of the given floor. f The invention of the elevator Addresser, containing the floor impulse sensor, generating impulses during the passage of floors, the decoder of impulses and equipped with a position indicator of the load-carrying body programming unit, the output of which is connected to the elevator drive control circuit, characterized in that, to simplify the design and increase safety In operation, by more precise indication of the position of the load-carrying body, the pulse decoder contains a relay with opening and closing con, bars and The position indicators on the axis are a single-phase stepper motor of the right rotation and a single-phase stepper motor of the left rotation of the position indicator, and the addresser is supplied with a DC power source with a negative and positive terminal, connected through the breaker contact of the relay to the beginning of 1 windings of stepper motors at the position of the load-carrying unit at the level at the floor, and during the loading of the load-carrying body between the floors, we connect, via the closing contacts of the relay, to the ends of the entire “step-by-step” motors. Sources of information taken into account in the examination 1. USSR author's certificate No. 243799, cl. В 66 В 1/16, 17.11.65 21 .2