CN206345558U - A kind of closed-loop control system of lift - Google Patents

A kind of closed-loop control system of lift Download PDF

Info

Publication number
CN206345558U
CN206345558U CN201621203356.6U CN201621203356U CN206345558U CN 206345558 U CN206345558 U CN 206345558U CN 201621203356 U CN201621203356 U CN 201621203356U CN 206345558 U CN206345558 U CN 206345558U
Authority
CN
China
Prior art keywords
lift
encoder
frequency converter
motor
control system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201621203356.6U
Other languages
Chinese (zh)
Inventor
杭世伟
沈东伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miracle Automation Engineering Co Ltd
Original Assignee
Miracle Automation Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miracle Automation Engineering Co Ltd filed Critical Miracle Automation Engineering Co Ltd
Priority to CN201621203356.6U priority Critical patent/CN206345558U/en
Application granted granted Critical
Publication of CN206345558U publication Critical patent/CN206345558U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model is related to a kind of closed-loop control system of lift.Belong to conveyer control technology field.A kind of closed-loop control system of lift, including controller, frequency converter, motor and lift, controller output control information are rotated to frequency converter, transducer drive motor, and motor drives lift to rise or fall, it is characterized in that:The lift also includes the encoder for being fixed on lifter motor afterbody;The elongated coded scale and the correspondence coded scale being fixed on rail of lifter are located at the absolute encoder ruler reading head moved on the lift with lift, the absolute encoder ruler reading head, by cable connection, is transmitted to the encoder card inside frequency converter to control the position of lift with the encoder card inside the frequency converter by output measuring and calculating information.The utility model row compact conformation, can effectively carry out effectively warning and control to the safe condition of lift gateway, it is ensured that lift it is safe and reliable.

Description

A kind of closed-loop control system of lift
Technical field
The utility model is related to a kind of control system, especially a kind of closed-loop control system of lift.Belong to conveyer control Technical field processed.
Background technology
During automobile production, due to the demand of the limitation in workshop space, and production technology, generally require using lifting Machine equipment, lifts vehicle body to certain altitude from Stall, in conventional design, is typically to be placed above 6 in lift to open Close(Upper limit, in place, it is upper slow down, it is lower slow down, under in place, lower limit), lift uses opened loop control, when lift is in fortune During dynamic, above switch is encountered, switch feeds back to corresponding signal in PLC, PLC passes through the logic of internal processes, control The output of lift frequency converter, to reach the rising of control lift, the action for declining, accelerating, slow down, stopping.This design with Toward design in, be all that design is preferred, but in actual production, the problems such as due to site environment, electric controling element life-span, Lift also occurs at the scene of stall once in a while in action process(Lift reaches speed reducing switch position, and frequency converter output does not have Reduce, or total power output).Therefore, the control system to existing lowering or hoisting gear improved and innovation be necessary and Urgently.
The content of the invention
The purpose of this utility model is to overcome a kind of the deficiencies in the prior art closing there is provided lowering or hoisting gear
Ring control system.The technical scheme provided according to the utility model, a kind of closed-loop control system of lowering or hoisting gear System, including controller, frequency converter, motor and lift, controller output control information turn to frequency converter, transducer drive motor Dynamic, motor drives lift to rise or fall, it is characterized in that:The lift also includes the volume for being fixed on lifter motor afterbody Code device;The elongated coded scale and the correspondence coded scale being fixed on rail of lifter are located on the lift and with lifting The absolute encoder ruler reading head that machine is moved together, the absolute encoder ruler reading head and the encoder cartoon inside the frequency converter Cable connection is crossed, is transmitted to the encoder card inside frequency converter to control the position of lift by output measuring and calculating information.
Encoder card inside the encoder and the frequency converter is by cable connection, so that what the encoder was measured Motor speed information, exports and gives the frequency converter.
The encoder is incremental encoder.
The controller is programmable logic controller (PLC).
Advantage of the present utility model:Controller is made full use of to control frequency converter, then liter is made by encoder, frequency converter etc. Drop machine rise and fall are more stable, more accurate.
Brief description of the drawings
Fig. 1 is the utility model structure principle chart
Description of reference numerals:1- lifts, 2- frequency converters, 3- motors, 4- controllers, 5- encoders, 6- coded scales, 7- are exhausted To value coding ruler reading head, 8- encoder cards.
Embodiment
With reference to specific drawings and examples, the utility model is described in further detail.
As shown in Figure 1:In order to be able to make lift rise and fall it is more stable, more precisely, the utility model include controller 4, Frequency converter 2, motor 3 and lift 1, the output control information of controller 4 are rotated to frequency converter 2, transducer drive motor 3, motor 3 Lift 1 is driven to rise or fall, it is characterized in that:The lift 1 also includes the coding for being fixed on the afterbody of 1 motor of lift 3 Device 5;The elongated coded scale 6 that is fixed on the track of lift 1 and the correspondence coded scale 6 be located on the lift 1 and with The absolute encoder ruler reading head 7 that lift is moved together, the absolute encoder ruler reading head 7 and the coding inside the frequency converter Device card 8 is transmitted to the encoder card 8 inside frequency converter to control the position of lift by cable connection by output measuring and calculating information Put.
Specifically, the utility model is the motion control to lift in automobile conveying 1, the afterbody of the motor 3 of lift 1 Axle on an encoder 5 is installed, motor 3 drives the raising and lowering of lift 1, when lift 1 act, encodes Numerical value in device 5 can and then change, if this numerical value change frequency is big, illustrate that the speed of lift is fast, on the contrary then explanation lifting The speed of machine is slow.
On the movable end of lift 1, an absolute encoder ruler reading head 7 is installed, on the track of lift 1, peace Elongated coded scale 6 is filled, absolute encoder ruler reading head 7 is arranged on coded scale 6, coded scale 6 is carved with bar code, and one above Bar code above the coded scale 6 of lift 1 is not repeated, and absolute encoder ruler reading head 7 can read coded scale 6 within the specific limits The numerical value of bar code, thus comes, and the rise and fall scope of lift 1 is just converted into corresponding numerical value by coded scale 6, different The different height of numerical value correspondence, when lift 1 is raised or lowered to a certain numerical value, program is calculated up to deceleration distance, It can directly control frequency converter to reduce power output, after numerical value reaches program arranges value, directly cut off the output of frequency converter 2, Reach the purpose of control lift 1 position.
The combination of absolute encoder ruler reading head 7 and coded scale 6 is controlled, and can make the ascending and descending process of lift 1 becomes More stablize, reliably, can effectively prevent the process of the rise and fall of lift 1 in the generation of the stall of lift 1, this scheme all There are encoder 5 or coded scale 6 to carry out speed and position feedback, will not occur in traditional design because should caused by certain reason Deceleration can also be controlled without the situation of deceleration, the in addition control for brake of lift 1 by frequency converter 2, can so be made The stopping for obtaining lift 1 is more smooth, determines the fixed position that lift 1 stops.

Claims (4)

1. a kind of closed-loop control system of lift, including controller(4), frequency converter(2), motor(3)And lift(1), control Device processed(4)Output control information is to frequency converter(2), transducer drive motor(3)Rotate, motor(3)Drive lift(1)Rise Or decline, it is characterized in that:The lift(1)Also include being fixed on lift(1)Motor(3)The encoder of afterbody(5);It is fixed In lift(1)Elongated coded scale on track(6)With the correspondence coded scale(6)It is located at the lift(1)On with liter The absolute encoder ruler reading head that drop machine is moved together(7), the absolute encoder ruler reading head(7)With the volume inside the frequency converter Code device card(8)By cable connection, by exporting the encoder card that measuring and calculating information is transmitted to inside frequency converter(8)To control lift Position.
2. a kind of closed-loop control system of lift according to claim 1, it is characterized in that:The encoder(5)With The frequency converter(2)Internal encoder card(8)By cable connection, so that the encoder(5)The motor of measurement(3)Rotating speed is believed Breath, exports and gives the frequency converter(2).
3. a kind of closed-loop control system of lift according to claim 2, it is characterized in that:The encoder(5)To increase Measure encoder.
4. a kind of closed-loop control system of lift according to claim 1, it is characterized in that:The controller(4)For can Programmed logic controller.
CN201621203356.6U 2016-11-08 2016-11-08 A kind of closed-loop control system of lift Active CN206345558U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621203356.6U CN206345558U (en) 2016-11-08 2016-11-08 A kind of closed-loop control system of lift

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621203356.6U CN206345558U (en) 2016-11-08 2016-11-08 A kind of closed-loop control system of lift

Publications (1)

Publication Number Publication Date
CN206345558U true CN206345558U (en) 2017-07-21

Family

ID=59317008

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621203356.6U Active CN206345558U (en) 2016-11-08 2016-11-08 A kind of closed-loop control system of lift

Country Status (1)

Country Link
CN (1) CN206345558U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106672713A (en) * 2016-11-08 2017-05-17 天奇自动化工程股份有限公司 Closed-loop control system of elevator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106672713A (en) * 2016-11-08 2017-05-17 天奇自动化工程股份有限公司 Closed-loop control system of elevator

Similar Documents

Publication Publication Date Title
CN206345558U (en) A kind of closed-loop control system of lift
CN105907918A (en) Control system and method for improving operation safety of converter oxygen lance
CN101935737A (en) Device for integrally detecting height of oxygen lance height and looseness and tightness of steel wire rope of oxygen gun
CN209009895U (en) A kind of arrangement for detecting that elevator wire rope skids
CN104875303B (en) Automatic mold adjusting method and tire vulcanizing machine
CN203865879U (en) Grab bucket bridge crane with trolley sprocket positioning system based on absolute value encoder
CN106672713A (en) Closed-loop control system of elevator
CN109357725B (en) Automatic mud layer height measuring device and measuring method
CN210315435U (en) Quick hoist type double-lifting-point hoist
CN202090012U (en) Integral detection device for height of oxygen lance and tightness of steel wire rope of oxygen lance
CN206407831U (en) The automatic hoisting structure of double hook
CN203946715U (en) A kind of for building pair of cage building hoist that utilizes cylinder pressure to change automatic speed regulation
CN204256462U (en) Gantry scanning support precise positioning electric control system
CN206648648U (en) A kind of architectural engineering horizontal calibrator
CN203638904U (en) Vector closed loop speed controlling system for elevator
CN204297846U (en) Can be used for the rope speed laser online monitoring system of gig and lifting winch
CN206126754U (en) Small -size material grouping elevating platform of electrified magnet
CN109775382A (en) Unpiler positioning system and control method
CN214935717U (en) Jacking steering transfer device
CN108263951A (en) The automatic hoisting structure of double hook and hanging method
CN104675156B (en) A kind of position compensation method based on stage lifting platform
CN216954444U (en) Intelligent crane height calibration device
CN205675925U (en) A kind of mine hoist servomotor memorial archway depth indicator device
CN204298001U (en) Can be used for the rope speed machinery online monitoring system of elevator and hoisting gear
CN209668307U (en) Unpiler positioning system

Legal Events

Date Code Title Description
GR01 Patent grant