CN106672713A - Closed-loop control system of elevator - Google Patents
Closed-loop control system of elevator Download PDFInfo
- Publication number
- CN106672713A CN106672713A CN201610980559.4A CN201610980559A CN106672713A CN 106672713 A CN106672713 A CN 106672713A CN 201610980559 A CN201610980559 A CN 201610980559A CN 106672713 A CN106672713 A CN 106672713A
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- CN
- China
- Prior art keywords
- elevator
- encoder
- control system
- closed
- motor
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention discloses a closed-loop control system of an elevator and belongs to the technical field of conveyor control. The closed-loop control system of the elevator comprises a controller, a frequency converter, a motor and an elevator; and the controller output control information to the frequency converter, the frequency converter drives the motor to rotate, and the motor drives the elevator to rise or fall down. The closed-loop control system of the elevator is characterized in that the elevator further comprises an encoder which is fixed to the tail of the elevator driving motor, a full-long coded ruler which is fixed onto an elevator rail and an absolute coded ruler reading head which corresponds to the coded ruler and is installed on the elevator and moves along the elevator; the absolute coded ruler reading head and an encoder card in the frequency converter are connected through cables; and the position of the elevator is controlled in the way that the absolute coded ruler reading head output measuring and calculating information to the encoder card in the frequency converter. According to the closed-loop control system of the elevator, the structure is simple, the safe states of an entrance and exit of the elevator can be effectively warned and controlled, and safety and reliability of the elevator are ensured.
Description
Technical field
The present invention relates to a kind of control system, especially a kind of closed-loop control system of elevator.Category conveyer control skill
Art field.
Background technology
During automobile production, due to the restriction in workshop space, and the demand of production technology, generally require using lifting
Machine equipment, lifts vehicle body to certain altitude from Stall, in conventional design, is typically placed above 6 in elevator and opens
Close（Upper limit, in place, upper deceleration, lower deceleration, under in place, lower limit）, elevator adopts opened loop control, when elevator is in fortune
During dynamic, above switch is encountered, switch feeds back to corresponding signal in PLC, the logic that PLC passes through internal processes, control
The output of elevator converter controls the action of elevator rising, decline, acceleration, deceleration, stopping reaching.This design with
Toward design in, be all that design is first-selected, but in actual production, the problems such as due to site environment, electric controling element life-span,
The scene of elevator stall in course of action also occurs once in a while（Elevator reaches speed reducing switch position, and converter output does not have
Reduce, or total power output）.Therefore, the control system of existing lowering or hoisting gear is improved and innovation be necessary and
Urgently.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of closed loop control system of lowering or hoisting gear
System.According to the present invention provide technical scheme, a kind of closed-loop control system of lowering or hoisting gear, including controller, converter,
Motor and elevator, controller output control information is rotated to converter, transducer drive motor, and motor drives elevator to rise
Or decline, it is characterized in that：The elevator also includes being fixed on the encoder of elevator drives motor afterbody；It is fixed on elevator
Elongated coded scale on track and the correspondence coded scale be located in the elevator and with elevator move it is absolute
Value coding ruler reading head, the absolute encoder ruler reading head passes through cable connection, passes through with the encoder card inside the converter
Output measuring and calculating information passes to the encoder card inside converter to control the position of elevator.
The encoder passes through cable connection with the encoder card inside the converter, so that the encoder
The motor speed information of measurement, exports and gives the converter.
The encoder is incremental encoder.
The controller is programmable logic controller (PLC).
Advantages of the present invention：Make full use of controller to control converter, then elevator is made by encoder, converter etc.
Rise and fall are more stable, more accurate.
Description of the drawings
Fig. 1 is present configuration schematic diagram
Description of reference numerals：1- elevator, 2- converters, 3- motors, 4- controllers, 5- encoders, 6- coded scales, 7- absolute values
Coding ruler reading head, 8- encoder cards.
Specific embodiment
With reference to concrete drawings and Examples, the invention will be further described.
As shown in Figure 1：：In order to be able to make elevator rise and fall more stable, more accurate, the present invention includes controller 4, frequency conversion
Device 2, motor 3 and elevator 1, the output control information of controller 4 is rotated to converter 2, transducer drive motor 3, and motor 3 drives
Elevator 1 rises or falls, and it is characterized in that：The elevator 1 also includes being fixed on the coding of the afterbody of 1 motor of elevator 3
Device 5；The elongated coded scale 6 that is fixed on the track of elevator 1 and the correspondence coded scale 6 be located in the elevator 1 and with
Coding inside the absolute encoder ruler reading head 7 that elevator is moved together, the absolute encoder ruler reading head 7 and the converter
Device card 8 passes to the encoder card 8 inside converter to control the position of elevator by cable connection by output measuring and calculating information
Put.
Specifically, the present invention is the motor control to elevator in automobile conveying 1, the afterbody of the motor 3 of elevator 1
Axle on an encoder 5 is installed, motor 3 drives the raising and lowering of elevator 1, when 1 action of elevator, coding
Numerical value in device 5 can and then change, if this change in value frequency is big, illustrate that the speed of elevator is fast, on the contrary then explanation lifting
The speed of machine is slow.
On the movable end of elevator 1, an absolute encoder ruler reading head 7 is installed, on the track of elevator 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 individual elevator 1 does not repeat, and absolute encoder ruler reading head 7 can read within the specific limits coding
The numerical value of the bar code of chi 6, thus comes, and coded scale 6 is just converted into corresponding numerical value the rise and fall scope of elevator 1, no
The different height of same numerical value correspondence, when elevator 1 is raised or lowered to a certain numerical value, program is calculated up to deceleration distance
, can directly control converter and reduce output, after numerical value reaches program arranges value, directly cut off the defeated of converter 2
Go out, reach the purpose of control elevator 1 position.
Absolute encoder ruler reading head 7 is controlled with the combination of coded scale 6, and can make the ascending and descending process of elevator 1 becomes
It is more stable, reliable, the generation of the stall of elevator 1 can be effectively prevented, the process of the rise and fall of elevator 1 is all in this scheme
There are encoder 5 or coded scale 6 to carry out speed and position feedback, will not occur in traditional design because of being somebody's turn to do that certain reason causes
Deceleration can also be controlled without the situation of deceleration, the in addition control for brake of elevator 1 by converter 2, so can be made
The stopping for obtaining elevator 1 is more smoothed, and determines the fixed position that elevator 1 stops.
Claims (4)
1. a kind of closed-loop control system of elevator, including controller（4）, converter（2）, motor（3）And elevator（1）, control
Device processed（4）Output control information is to converter（2）, transducer drive motor（3）Rotate, motor（3）Drive elevator（1）Rise
Or decline, it is characterized in that：The elevator（1）Also include being fixed on elevator（1）Motor（3）The encoder of afterbody（5）；
It is fixed on elevator（1）Elongated coded scale on track（6）With the correspondence coded scale（6）It is located at the elevator（1）On
The absolute encoder ruler reading head moved with elevator（7）, the absolute encoder ruler reading head（7）Inside the converter
Encoder card（8）By cable connection, the encoder card inside converter is passed to by output measuring and calculating information（8）To control to rise
The position of drop machine.
2. a kind of closed-loop control system of the elevator according to claim 1, is characterized in that：It is described
Encoder（5）With the converter（2）Internal encoder card（8）By cable connection, so that the encoder（5）Survey
The motor of amount（3）Rotary speed information, exports and gives the converter（2）.
3. a kind of closed-loop control system of elevator according to claim 2, is characterized in that：The encoder（5）To increase
Amount encoder.
4. a kind of closed-loop control system of elevator according to claim 1, is characterized in that：The controller（4）For can
Programmed logic controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610980559.4A CN106672713A (en) | 2016-11-08 | 2016-11-08 | Closed-loop control system of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610980559.4A CN106672713A (en) | 2016-11-08 | 2016-11-08 | Closed-loop control system of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106672713A true CN106672713A (en) | 2017-05-17 |
Family
ID=58840260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610980559.4A Pending CN106672713A (en) | 2016-11-08 | 2016-11-08 | Closed-loop control system of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106672713A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115092849A (en) * | 2022-05-26 | 2022-09-23 | 中国第一汽车股份有限公司 | Multi-position control system and control method for elevator |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1349686A (en) * | 1970-04-20 | 1974-04-10 | Hitachi Ltd | Apparatus for controlling an elevator |
| CN101901773A (en) * | 2010-03-17 | 2010-12-01 | 中国电子科技集团公司第四十五研究所 | Automatic loading system suitable for stacking silicon chips in automatic equipment |
| CN103508371A (en) * | 2013-09-25 | 2014-01-15 | 芜湖艾蔓设备工程有限公司 | Lifter and control system thereof |
| CN103625907A (en) * | 2013-12-09 | 2014-03-12 | 机科发展科技股份有限公司 | Directly-butted elevation-type transfer trolley structure |
| CN203638904U (en) * | 2013-11-18 | 2014-06-11 | 天奇自动化工程股份有限公司 | Vector closed loop speed controlling system for elevator |
| CN104295132A (en) * | 2014-08-11 | 2015-01-21 | 烟台威明空间建筑工程有限公司 | Novel lifting device of vertically-lifted type stereo garage |
| CN106020127A (en) * | 2016-07-29 | 2016-10-12 | 中国第汽车股份有限公司 | High-speed roller machine control system used for transporting trolley and control method thereof |
| CN206345558U (en) * | 2016-11-08 | 2017-07-21 | 天奇自动化工程股份有限公司 | A kind of closed-loop control system of lift |
-
2016
- 2016-11-08 CN CN201610980559.4A patent/CN106672713A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1349686A (en) * | 1970-04-20 | 1974-04-10 | Hitachi Ltd | Apparatus for controlling an elevator |
| CN101901773A (en) * | 2010-03-17 | 2010-12-01 | 中国电子科技集团公司第四十五研究所 | Automatic loading system suitable for stacking silicon chips in automatic equipment |
| CN103508371A (en) * | 2013-09-25 | 2014-01-15 | 芜湖艾蔓设备工程有限公司 | Lifter and control system thereof |
| CN203638904U (en) * | 2013-11-18 | 2014-06-11 | 天奇自动化工程股份有限公司 | Vector closed loop speed controlling system for elevator |
| CN103625907A (en) * | 2013-12-09 | 2014-03-12 | 机科发展科技股份有限公司 | Directly-butted elevation-type transfer trolley structure |
| CN104295132A (en) * | 2014-08-11 | 2015-01-21 | 烟台威明空间建筑工程有限公司 | Novel lifting device of vertically-lifted type stereo garage |
| CN106020127A (en) * | 2016-07-29 | 2016-10-12 | 中国第汽车股份有限公司 | High-speed roller machine control system used for transporting trolley and control method thereof |
| CN206345558U (en) * | 2016-11-08 | 2017-07-21 | 天奇自动化工程股份有限公司 | A kind of closed-loop control system of lift |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115092849A (en) * | 2022-05-26 | 2022-09-23 | 中国第一汽车股份有限公司 | Multi-position control system and control method for elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
|
| RJ01 | Rejection of invention patent application after publication |