CN105094162A - Variable speed cruising automatic rotating dining table and control method thereof - Google Patents
Variable speed cruising automatic rotating dining table and control method thereof Download PDFInfo
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- CN105094162A CN105094162A CN201510499135.1A CN201510499135A CN105094162A CN 105094162 A CN105094162 A CN 105094162A CN 201510499135 A CN201510499135 A CN 201510499135A CN 105094162 A CN105094162 A CN 105094162A
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- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
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Abstract
The invention discloses a variable speed cruising automatic rotating dining table and a control method thereof. The automatic rotating dining table comprises a rotating table panel, a driving motor and a controller. A torsion sensor, an electromagnetic clutch, a driving shaft and a rotary encoder are arranged between an output shaft of the driving motor and the rotating table panel; the rotary encoder is arranged on the rotating table panel; one end of the driving shaft is connected with the rotary encoder, and the other end of the driving shaft is connected with the output shaft of the driving motor by the electromagnetic clutch; the torsion sensor is fixed on the output shaft of the driving motor; the control input ends of the electromagnetic clutch and the driving motor are respectively connected with the controller; the output end of the torsion sensor is connected with the controller to sense external torsion, and the controller controls disengagement or engagement of the electromagnetic clutch according to the torsion; the output end of the rotary encoder is connected with the controller to feed back the rotating speed of the table panel, and the controller controls the rotating speed change of the driving motor according to the feedback rotating speed.
Description
Technical field
The present invention relates to automatic rotating table, particularly a kind of speed change is cruised automatic rotating table and control method thereof.
Background technology
Existing lazy Susan generally adopts remote control or install switch control rule under desktop, and its cruise speed only has one, namely otherwise by regulation speed run, or stop, certainly having also with rotating function.Existing automatic rotating table can with reference to Figure of description Fig. 1, wherein 1-turntable panel, 2-table dormant panel, 3-Underframe for table.
As automatic rotating table, it is had dinner for people's party and provides certain facility, but always feel that a kind of speed can not meet request for utilization in use, if waiter is serving or need when being made a clean sweep of by the plate eaten up, may just need faster rotational speed to meet need of work.Guest needs switchover operation between different speed in use sometimes in addition, if only use remote control or install under desktop switch may only convenient near people's operation, and guest slightly a little further just can not operate.
Summary of the invention
The technical problem to be solved in the present invention is: the speed change that Negotiation speed FEEDBACK CONTROL realizes automatic rotating table is cruised, make around dining table everyone can have equal opportunity driven lazy Susan, and lazy Susan can change existing speed according to driving force.
The technical scheme that the present invention takes is specially: a kind of speed change is cruised automatic rotating table, the drive motor comprising turntable panel and drive turntable panel to rotate; It is characterized in that, also comprise controller, between the output shaft of drive motor and turntable panel, be also provided with torsion torque sensor, electromagnetic clutch, driving shaft and rotary encoder;
Rotary encoder is arranged on turntable panel; Driving shaft one end connects rotary encoder, and the other end is connected by electromagnetic clutch with the output shaft of drive motor; Torsion torque sensor coaxially connects the output shaft of drive motor;
The control input end connection control device respectively of electromagnetic clutch and drive motor;
The output terminal connection control device of torsion torque sensor, to transmit contacts status signal, controller controls the separation or closed of electromagnetic clutch according to contacts status signal;
The output terminal connection control device of rotary encoder, to transmit the rotating speed data of turntable panel, controller controls the rotation speed change of drive motor according to rotating speed data.
Middle controller of the present invention can adopt existing microcontroller chip, and as single-chip microcomputer, PLC etc., electromagnetic clutch, torsion torque sensor, rotary encoder are all existing product.When applying, when driving without external force, controller rotation-controlled desktop version rotates with a constant speed under the driving of drive motor; And whenever running into person sponging on an aristocrat's external force and driving, namely torsion torque sensor collects torsion signal.Torsion torque sensor and existing torsion switch, it has a limit torsion (square), is provided with normally opened contact and normally closed contact, the status signal of exportable two contacts of its output terminal; When this torsion is greater than the ultimate torque of torsion torque sensor, then normally opened contact is closed disconnects with normally closed contact, the then controlled clutch coupling contact separation processed of this Time Controller of torsion torque sensor, disconnect drive motor to the driving force of driving shaft, turntable panel can be rotated under the effect of person sponging on an aristocrat's external force, namely rotate according to the speed desired by a person sponging on an aristocrat.Meanwhile, rotary encoder collection also feeds back the rotary speed information of turntable panel, and controller is according to the rotating speed of this rotary speed information adjustment drive motor and direction.Until torsion disappears or is reduced to lower than limit torsion (square), then normally opened contact and normally closed contact reset, and can control electromagnetic clutch contact and recover, rotate under making turntable panel drive motor actuating speed after the adjustment by controller; Do not turn if external force controls turntable panel, then the speed of rotary encoder feedback is 0, and control drive motor also no longer rotates by controller; External force is only needed again to drive turntable panel to rotate can restart according to the speed wanted.Any rotational speed that lazy Susan of the present invention can be able to be ordered about with a person sponging on an aristocrat is cruised, to meet person sponging on an aristocrat's needs.
Further, the present invention also comprises motor drive module, and motor drive module comprises AD conversion unit and frequency converter, and controller, successively through AD conversion module and frequency converter, connects drive motor control input end.AD converter receives the velocity information of the digital signal that controller exports, and be converted to analog signal output to frequency converter, then the rotating speed of drive motor will be changed to new speed.Drive motor of the present invention can adopt alternating current asynchronous reducing motor.
The present invention also comprises power module, and controller adopts PLC, and power module is made up of AC power and direct supply, and AC power is PLC and inverter supply, and direct supply is rotary encoder, torsion torque sensor, electromagnetic clutch coil power supply.Concrete, power module of the present invention can be made up of interchange 220v power supply, interchange 380V power supply and direct current 24v power supply, exchanging 220v power supply is that PLC is powered, exchanging 380V power supply is inverter supply, direct current 24V power supply can be obtained through AC-DC Switching Power Supply by alternating current 220V power supply, and then be rotary encoder, torsion torque sensor, electromagnetic clutch coil power supply.
Because electromagnetic clutch coil working electric current is larger, if be directly electromagnetic clutch coil power supply by the control output end of PLC, then be easy to burn out PLC port, thus, the present invention also comprises auxiliary reclay, and the coil of auxiliary reclay is connected between the signal output part of PLC and direct supply; Connect direct supply after the auxiliary normally opened contact of electromagnetic clutch coil tandem auxiliary reclay; The negative pole of direct supply connects the power supply common port of PLC.
Further, the present invention also comprises the start button and normally closed stop button often opened, and start button and stop button are connected between the signal input port of PLC and direct supply.
Comprise the following steps based on the cruise control method of automatic rotating table of above-mentioned speed change:
1. define the initial speed of turntable panel, controller controls drive motor and drives turntable panel to rotate with initial speed; The contacts status signal of torsion torque sensor output is obtained with Time Controller;
2. when twisting resistance outside suffered by turntable panel causes moment of torsion suffered by torsion torque sensor to be greater than its ultimate torque, in torsion torque sensor, normally opened contact closes, normally closed contact disconnects, then controller controls electromagnetic clutch contact separation, the output shaft of drive motor and driving shaft are disconnected, and turntable panel can rotate with outside twisting resistance;
3. controller obtains the feedback rotating speed of turntable panel by rotary encoder, then controls drive motor and runs to feed back rotating speed;
4. when outside twisting resistance disappears, when torsion torque sensor contact is resetted, controller controls the electromagnetic clutch closing of contact, and the output shaft of drive motor and driving shaft are reconnected, and turntable panel runs to feed back rotating speed under the driving of drive motor.
Further, said method also comprises step:
5. define new rotating speed to hold time, when turntable panel with the time of feed back rotational speed exceed new rotating speed hold time time, controller controls drive motor and drives the operation of turntable panel with initial speed.In the present invention, initial speed can be set to 5 revs/min, is relatively applicable to conventional person sponging on an aristocrat's needs; New rotating speed is held time and can be set to 30 seconds, and when turntable panel maintains in 30s with new rotational speed, without new External Force Acting, then automatic retarding rotates to initial speed.
Beneficial effect of the present invention is: by torsion torque sensor induction, a person sponging on an aristocrat changes demand to the speed of turntable panel, thus disconnects drive motor to the rotary actuation of turntable panel, makes external force can random rotary desktop; And then obtain the rotating speed after ordering about by external force with feedback turntable panel by rotary encoder, export according to the driving rotating speed of this adjustment of rotational speed motor.Structure of the present invention is comparatively simplified, and utilize control method of the present invention to ensure turntable panel can respond person sponging on an aristocrat's speed demand at any time simultaneously, the simultaneously rotation of desktop and speed handoff procedure steady.
Accompanying drawing explanation
Figure 1 shows that lazy Susan structural representation;
Figure 2 shows that mounting structure schematic diagram of the present invention;
Figure 3 shows that control circuit principle schematic of the present invention.
Embodiment
Further describe below in conjunction with the drawings and specific embodiments.
Composition graphs 1 to Fig. 3, speed change of the present invention is cruised automatic rotating table, the drive motor 6 comprising turntable panel 2 and drive turntable panel 2 to rotate; Also comprise controller 10, between the output shaft of drive motor 6 and turntable panel 2, be also provided with torsion torque sensor 7, electromagnetic clutch 8, driving shaft 5 and rotary encoder 4; Rotary encoder 4 is arranged on turntable panel 2; Driving shaft 5 one end connects rotary encoder 4, and the other end is connected by electromagnetic clutch 8 with the output shaft of drive motor 6; Torsion torque sensor 7 is fixed on the output shaft of drive motor 6; The control input end connection control device 10 respectively of electromagnetic clutch 8 and drive motor 6; The output terminal connection control device 10 of torsion torque sensor 7, to transmit torsion torque sensor inner contact status signal, controller 10 controls the separation or closed of electromagnetic clutch 8 according to electric shock status signal; The output terminal connection control device 10 of rotary encoder 4, to transmit the rotating speed data of turntable panel 2, controller 10 controls the rotation speed change of drive motor 6 according to rotating speed data, thus turntable panel is rotated with the new speed needed for a person sponging on an aristocrat.
Embodiment
Please refer to Fig. 3, controller of the present invention adopts existing PLC, and electromagnetic clutch, torsion torque sensor, rotary encoder are all prior art, and drive motor adopts alternating current asynchronous reducing motor.
The present embodiment also comprises motor drive module, and motor drive module comprises AD conversion unit 11 and frequency converter 12, and controller 10, successively through AD conversion module 11 and frequency converter 12, connects the control input end of drive motor 6.AD converter 11 receives the velocity information of the digital signal that controller 10 exports, and be converted to analog signal output to frequency converter 12, then the rotating speed of drive motor 6 will be changed to new speed.
Also comprise power module, power module forms by exchanging 220v power supply, interchange 380V power supply and direct current 24v power supply, exchanging 220v power supply is that PLC is powered, exchanging 380V power supply is inverter supply, direct current 24V power supply can be obtained through AC-DC Switching Power Supply 9 by alternating current 220V power supply, and then be rotary encoder 4, torsion torque sensor 7, electromagnetic clutch coil 8 is powered.
Because electromagnetic clutch coil working electric current is larger, if be directly electromagnetic clutch coil power supply by the control output end of PLC, then be easy to burn out PLC port, thus, the present embodiment also comprises auxiliary reclay 15, and the coil of auxiliary reclay 15 is connected between the signal output part Y4 of PLC and direct supply; Connect direct supply after the auxiliary normally opened contact of electromagnetic clutch coil tandem auxiliary reclay; The negative pole of direct supply connects the power supply common port COM2 of PLC.
Further, the present embodiment also comprises the start button 13 and normally closed stop button 14 often opened, and start button and stop button are connected between signal input port X4, X5 of PLC and direct supply.
PLC carries out increase and decrease counting by its high-speed counter to the pulse that the rotary encoder 4 connecting X0, X1 two input ports inputs, and must speed be had, represent the analog voltage of corresponding speed to the analog voltage control end of frequency converter 12 by AD converter 11 output again, the speed produced by External Force Acting to control reducing motor 6 is run; When PLC counts rotary encoder 4 input pulse, the A phase of two input port X0, X1 difference corresponding rotation scramblers 4 of PLC and B phase, the result of such PLC counting just has positive and negative dividing, they are the rotating and reverse of corresponding reducing motor 6 respectively, namely when the Y0 being counted as timing PLC has output, drive motor 6 rotates forward, and when being counted as negative, the Y1 of PLC has output, and drive motor 6 reverses.Therefore, in certain speed range, the rotating electrodeless variable-speed that the present invention can realize automatic rotating table cruises.
Comprise the following steps based on the cruise control method of automatic rotating table of above-mentioned speed change:
1. define the initial speed of turntable panel, controller controls drive motor and drives turntable panel to rotate with initial speed; The contacts status signal of torsion torque sensor output is obtained with Time Controller;
2. when twisting resistance outside suffered by turntable panel causes moment of torsion suffered by torsion torque sensor to be greater than its ultimate torque, in torsion torque sensor, normally opened contact closes, normally closed contact disconnects, then controller controls electromagnetic clutch contact separation, the output shaft of drive motor and driving shaft are disconnected, and turntable panel can rotate with outside twisting resistance; Middle controller of the present invention controls electromagnetic clutch contact separation, namely controls auxiliary reclay coil electricity, thus makes electromagnetic clutch coil blackout, contact separation;
3. controller obtains the feedback rotating speed of turntable panel by rotary encoder, then controls drive motor and runs to feed back rotating speed;
4. when outside twisting resistance disappears, when torsion torque sensor contact is resetted, controller controls the electromagnetic clutch closing of contact, and the output shaft of drive motor and driving shaft are reconnected, and turntable panel runs to feed back rotating speed under the driving of drive motor
5. define new rotating speed to hold time, when turntable panel with the time of feed back rotational speed exceed new rotating speed hold time time, controller controls drive motor and drives the operation of turntable panel with initial speed.In the present invention, initial speed can be set to 5 revs/min, is relatively applicable to conventional person sponging on an aristocrat's needs; New rotating speed is held time and can be set to 30 seconds, and when turntable panel maintains in 30s with new rotational speed, without new External Force Acting, then automatic retarding rotates to initial speed.
The present invention is when applying, and when driving without external force, controller rotation-controlled desktop version is with a constant speed under the driving of drive motor, and namely initial speed is as 5 revs/min of rotations; And whenever running into person sponging on an aristocrat's external force and driving, namely torsion torque sensor collects torsion signal, this Time Controller is by auxiliary reclay solenoidoperated cluthes contact separation, disconnect drive motor to the driving force of driving shaft, turntable panel can be rotated under the effect of person sponging on an aristocrat's external force, namely rotate according to the speed desired by a person sponging on an aristocrat.Meanwhile, rotary encoder collection also feeds back the rotary speed information of turntable panel, controller is according to the rotating speed of this rotary speed information adjustment drive motor and direction, treat that torsion torque sensor contact resets, can again recover electromagnetic clutch contact, rotate under making turntable panel drive motor actuating speed after the adjustment; Do not turn if external force controls turntable panel, then the speed of rotary encoder feedback is 0, and control drive motor also no longer rotates by controller; Only need external force again to drive turntable panel to rotate can restart according to the speed wanted, or wait for that new rotating speed is held time rear, turntable panel will recover initial speed and rotate.
The electrodeless rotating speed change that Negotiation speed FEEDBACK CONTROL of the present invention realizes automatic rotating table is cruised, make around dining table everyone can have equal opportunity driven lazy Susan, and lazy Susan can change existing speed according to driving force.
Claims (8)
1. kind of a speed change is cruised automatic rotating table, the drive motor comprising turntable panel and drive turntable panel to rotate; It is characterized in that, also comprise controller, between the output shaft of drive motor and turntable panel, be also provided with torsion torque sensor, electromagnetic clutch, driving shaft and rotary encoder;
Rotary encoder is arranged on turntable panel; Driving shaft one end connects rotary encoder, and the other end is connected by electromagnetic clutch with the output shaft of drive motor; Torsion torque sensor coaxially connects the output shaft of drive motor;
The control input end connection control device respectively of electromagnetic clutch and drive motor;
The output terminal connection control device of torsion torque sensor, to transmit contacts status signal, controller controls the separation or closed of electromagnetic clutch according to contacts status signal;
The output terminal connection control device of rotary encoder, to transmit the rotating speed data of turntable panel, controller controls the rotation speed change of drive motor according to rotating speed data.
2. to cruise automatic rotating table according to speed change according to claim 1, it is characterized in that, also comprise motor drive module, motor drive module comprises AD conversion unit and frequency converter, and controller, successively through AD conversion module and frequency converter, connects drive motor control input end.
3. speed change according to claim 2 is cruised automatic rotating table, it is characterized in that, drive motor adopts alternating current asynchronous reducing motor.
4. speed change according to claim 1 is cruised automatic rotating table, and it is characterized in that, also comprise power module, power module is made up of AC power and direct supply; Controller adopts PLC, and AC power is PLC and inverter supply, and direct supply is rotary encoder, torsion torque sensor, electromagnetic clutch coil power supply.
5. speed change according to claim 4 is cruised automatic rotating table, and it is characterized in that, also comprise auxiliary reclay, the coil of auxiliary reclay is connected between the signal output part of PLC and direct supply; Connect direct supply after the auxiliary normally opened contact of electromagnetic clutch coil tandem auxiliary reclay; The negative pole of direct supply connects the power supply common port of PLC.
6. speed change according to claim 1 is cruised automatic rotating table, and it is characterized in that, also comprise the start button and normally closed stop button often opened, start button and stop button are connected between the signal input port of PLC and direct supply.
7. to cruise based on the speed change described in any one of claim 1 to 6 control method of automatic rotating table, it is characterized in that, comprise the following steps:
1) define the initial speed of turntable panel, controller controls drive motor and drives turntable panel to rotate with initial speed; The contacts status signal of torsion torque sensor output is obtained with Time Controller;
2) when twisting resistance outside suffered by turntable panel causes moment of torsion suffered by torsion torque sensor to be greater than its ultimate torque, in torsion torque sensor, normally opened contact closes, normally closed contact disconnects, then controller controls electromagnetic clutch contact separation, the output shaft of drive motor and driving shaft are disconnected, and turntable panel can rotate with outside twisting resistance;
3) controller obtains the feedback rotating speed of turntable panel by rotary encoder, then controls drive motor and runs to feed back rotating speed;
4) when outside twisting resistance disappears, when torsion torque sensor contact is resetted, controller controls the electromagnetic clutch closing of contact, and the output shaft of drive motor and driving shaft are reconnected, and turntable panel runs to feed back rotating speed under the driving of drive motor.
8. method according to claim 7, is characterized in that, also comprises step:
5) define new rotating speed to hold time, when turntable panel with the time of feeding back rotational speed exceed new rotating speed hold time time, controller controls drive motor and drives turntable panel to run with initial speed.
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| CN201510499135.1A CN105094162B (en) | 2015-08-14 | 2015-08-14 | A kind of speed change cruise automatic rotating table and its control method |
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| CN201510499135.1A CN105094162B (en) | 2015-08-14 | 2015-08-14 | A kind of speed change cruise automatic rotating table and its control method |
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| CN105094162B CN105094162B (en) | 2018-02-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105843066A (en) * | 2016-05-23 | 2016-08-10 | 西北民族大学 | Kitchen auxiliary system |
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| CN105094162B (en) | 2018-02-13 |
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