CN110482345A - A kind of home lift - Google Patents
A kind of home lift Download PDFInfo
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- CN110482345A CN110482345A CN201910798551.XA CN201910798551A CN110482345A CN 110482345 A CN110482345 A CN 110482345A CN 201910798551 A CN201910798551 A CN 201910798551A CN 110482345 A CN110482345 A CN 110482345A
- Authority
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- China
- Prior art keywords
- plc
- switch
- home lift
- relay
- frequency converter
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- 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.)
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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
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
- B66B1/308—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor with AC powered elevator drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/14—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads
Abstract
The embodiment of the present application provides a kind of home lift comprising: the triggering of rising button of the upstream switch based on home lift, and rising switch state is made to change.PLC is used to be based on rising switch state change, controls frequency converter by the first relay so that motor rotates in a first direction, and then starts the rising process of home lift.Declines button of the downing switch based on home lift is triggered, and downing switch state is made to change.PLC is used to be based on downing switch state change, controls frequency converter by the second relay so that motor rotates in a second direction, and then starts the rising process of home lift.Frequency converter controls motor stalls in the case where disconnecting close to switch and/or the time relay.Through the above technical solutions, the accurate fixed of elevator operation can effectively be improved, improve the user experience.
Description
Technical field
The present invention relates to elevator technology field more particularly to a kind of home lifts.
Background technique
Elevator, which refers to, serves several specific floors in building, and carriage operates at least two column perpendicular to horizontal plane
Or the permanent transporting equipment of the rigid track movement with plumb line inclination angle less than 15 °.
It is a kind of just to be answered suitable for the home lift of villa quarter or small sized multiple story building with the innovation of technology and the development of society
It transports and gives birth to, bring great convenience for the life of user, the specified floor of the arrival for keeping user safe and efficient.
Existing home lift is in the process of running, not accurate enough to elevator, elevator operation inaccuracy, to generate
Biggish error tends not to accurately run to target leveling, and home lift in use also can there is safety
Hidden danger.
Summary of the invention
The embodiment of the invention provides a kind of home lifts, home lift safety and steady can be made to run, so that band is employed
The designated floor of the arrival user of family fast accurate, solves problems of the prior art.
The embodiment of the present application provides a kind of home lift comprising: programmable logic controller (PLC) (Programmable
Logic Controller, PLC), upstream switch, downing switch, the first relay, the second relay, frequency converter, motor, connect
Nearly switch, the time relay.Upstream switch is connected with PLC, the triggering of rising button of the upstream switch based on home lift, and makes
Rising switch state changes.First relay one end is connected with PLC, and the other end is connected with frequency converter, frequency converter and motor
It is connected.PLC be used for be based on rising switch state change, by the first relay control frequency converter so that motor in a first direction
Rotation, and then start the rising process of home lift.Downing switch is connected with PLC, decline of the downing switch based on home lift
Button is triggered, and downing switch state is made to change.Second relay one end is connected with PLC, the other end and frequency converter
It is connected.PLC be used for be based on downing switch state change, by the second relay control frequency converter so that motor in a second direction
Rotation, and then start the decline process of home lift.One end of the time relay is connected with PLC, and the other end passes through close to switch
It is connected to frequency converter.Frequency converter is used in the case where disconnecting close to switch and/or the time relay, and control motor stops turning
It is dynamic.Wherein, PLC is used to control and disconnect close to switch in the case where the moving distance of home lift is equal to preset threshold；And
PLC is also used in the case where the traveling time of home lift is equal to preset time, and the control time relay disconnects.
In a kind of mode in the cards, home lift further include: encoder.The input terminal of encoder is connected with PLC,
The output end of encoder is connected with frequency converter.Signal of the PLC based on the throw-over detection module from home lift, and make encoder
Corresponding coding structure is obtained, so that frequency converter controls the revolving speed of motor according to the coding result of encoder, and then starts household
The deceleration process of elevator.Wherein, throw-over detection module includes throw-over detection piece and multiple throw-over actuated pieces, the setting of throw-over detection piece
Car side wall in home lift and the position close to car top, each throw-over actuated piece are set on the guide rail of home lift,
Each throw-over brake component is identical as the distance between corresponding leveling, the corresponding throw-over actuated piece of each leveling.The actuated piece that replaces is used
When reaching the position of throw-over actuated piece in throw-over detection piece, throw-over detection piece is triggered.Throw-over detection piece is used to be based on triggering, to
PLC sends corresponding signal.
In a kind of mode in the cards, home lift further includes light curtain switch, emergency stop switch, light curtain switch, emergency stop
Switch is connected with PLC.It is deposited at the elevator door for detecting home lift when abnormal, light curtain switch state changes, with
PLC is set to control motor stalls.Emergency stop switch is triggered for the scram button based on home lift, and makes emergency stop switch shape
State changes, so that PLC controls motor stalls.
In a kind of mode in the cards, elevator further includes upper limit switch, lower position switch, and upper limit switch is under
Limit switch is connected with PLC.Upper limit switch is used for being triggered based on upper limit detection piece, and makes upper limit switch state
It changes, so that PLC controls motor stalls, so that the rising process of home lift be made to stop.Lower position switch is based on
Lower limit detection piece is triggered, and upper limit switch state is made to change, so that PLC controls motor stalls, thus
Stop the decline of home lift.
In a kind of mode in the cards, frequency converter is connected by PG card with encoder.
In a kind of mode in the cards, the first relay and the second relay form interlock circuit.
In a kind of mode in the cards, home lift further includes third relay, the 4th relay, third relay
It is connected respectively with PLC with the 4th relay.PLC controls the lighting source of elevator by third relay.And PLC passes through the 4th
Relay control elevator stops in abnormal cases.PLC controls elevator by the 5th relay and sends alarm in abnormal cases
Signal.
In a kind of mode in the cards, home lift further includes braking resistor, braking resistor and the frequency converter phase
Even.Braking resistor is for cooperating the 4th relay to realize that PLC control home lift stops in abnormal cases.
The embodiment of the present application provides a kind of home lift, passes through upstream switch, downing switch, the first relay, second
Relay, close mutual cooperation between switch, the time relay, frequency converter, PLC and motor.PLC according to upstream switch or
The state change of downing switch by the first relay or the second relay to control frequency converter, and passes through the control to frequency converter
The rotation direction of system adjustment motor, the upstream or downstream of elevator are realized with this.Also, PLC passes through close to switch and time relay
Device effectively reduces error present in elevator operation.Through the above technical solutions, improve elevator operation accuracy and
Stability effectively improves user experience.
Detailed description of the invention
Fig. 1 is a kind of electrical block diagram of home lift provided by the embodiments of the present application；
Fig. 2 is a kind of local circuit structural schematic diagram of home lift provided by the embodiments of the present application；
Fig. 3 is a kind of structural schematic diagram of home lift provided by the embodiments of the present application；
Fig. 4 is a kind of structural schematic diagram of home lift provided by the embodiments of the present application；
Fig. 5 is a kind of partial structural diagram of home lift shown in Fig. 4.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this hair
It is bright to be described in detail.
Fig. 1 is a kind of electrical block diagram of home lift provided by the embodiments of the present application.As shown in Figure 1, the household
Elevator includes: PLC, upstream switch S4, downing switch S5, the first relay KA1, the second relay KA2, frequency converter 110, motor
120, close to switch SQ, time relay KT, encoder 130.
Upstream switch S4, downing switch S5, the first relay KA1, the second relay KA2, time relay KT respectively at
PLC is connected, and the first relay KA1, the second relay KA2, is connected close to switch SQ respectively at frequency converter 110, close to switch SQ
It connects with time relay KT.Frequency converter 110 is connected by its three-phase output end with motor 120, the input terminal of encoder 130 and
PLC is connected, and the output end of encoder 130 is connected with frequency converter.
Wherein, the three-phase output end of above-mentioned frequency converter 110 is U, V, W interface.In the embodiment of the present application, frequency converter 410
Model AS320.It is understood that the model of frequency converter can be suitable for the change of the embodiment of the present application for any one
The model of frequency device.
Upstream switch S4 is triggered based on elevator rising button, and rising switch state is made to change, so that PLC passes through
First relay KA1 controls frequency converter 110, to realize that motor 120 rotates in a first direction, and then starts the upper of home lift
The process of liter.For example, rising switch S4 being triggered based on elevator rising button, rising switch S4 become on state from disconnection,
PLC can control frequency converter 110 by the first relay KA1 according to the on state of upstream switch S4 and control motor 2 the at this time
One side is rotated up, so that carriage rises.Through the above scheme, lift car can be made to move up, accurately arrives at mesh
Mark floor.
Similarly, downing switch S5 being triggered based on elevator declines button, so that down switch state is made to change, with
So that PLC is controlled frequency converter 110 by the second relay KA2 to realize that motor 120 rotates in a second direction, and then starts household
The decline process of elevator.Through the above scheme, it can be carriage to move down, accurately reach destination, improve the standard of elevator
True rate.
In running process of elevator, PLC is in the case where the moving distance for detecting lift car is equal to respective threshold, control
It makes close to switch SQ and disconnects.PLC detect lift car traveling time be equal to respective threshold in the case where, control the time after
Electric appliance KT is disconnected.Furthermore it connects close to switch SQ with time relay KT.Frequency converter 110 close to switch SQ and/or time after
In the case that electric appliance KT is disconnected, motor stalls are controlled.Based on the above principles, when the movement of the moving distance of elevator and elevator
Any one in time reaches preset value, triggered time relay KT or disconnects close to switch SQ, such three-phase output end and
The motor disconnects, frequency converter no longer output power of motor, to realize the stroke and runing time according to elevator, to elevator into
Row multiple protective.It, can be with by calculating the mobile moving distance of lift car and traveling time in addition, in running process of elevator
Further increase the accuracy that lift car reaches destination.
Fig. 2 is a kind of local circuit structural schematic diagram of home lift provided by the embodiments of the present application.The one of the application
In kind embodiment, the first relay KA1 and the second relay KA2 form interlock circuit, as shown in Fig. 2, to avoid the occurrence of
Situation existing for raising and lowering further strengthens elevator reliability of operation with this.
In a kind of embodiment of the application, frequency converter 110 can pass through PG card (not shown) and conducting wire and volume
Code device 130 is connected.
In a kind of embodiment of the application, throw-over detection module is provided on home lift, the throw-over detection module
Including throw-over detection piece 5 and transposition actuated piece 6, as shown in Figure 3.Fig. 3 is a kind of home lift provided by the embodiments of the present application
Structural schematic diagram, as shown in figure 3, throw-over detection piece 5 is set to the car side wall of home lift and the position close to car top,
Each throw-over actuated piece 6 is set to the guide rail of the corresponding home lift of corresponding leveling, between each throw-over brake component 6 and corresponding leveling
Apart from identical, the corresponding throw-over actuated piece 6 of each leveling.
In lift car moving process, when throw-over detection piece 5 reaches the position of transposition actuated piece 6, replace actuated piece 6
Triggering transposition detection piece 5.The detection switch 5 that replaces is based on the triggering, sends corresponding signal to PLC.PLC is based on examining from throw-over
The signal for surveying part, makes 130 state of encoder change, so that the state change of 410 encoder 420 of frequency converter controls motor 2
Revolving speed, and then start home lift deceleration process, that is to say, that carriage starts to run slowly.
In the embodiment of the present application, slow down before carriage can be made to reach destination, avoid reaching target in carriage
Rapidly stop when floor, improves the stability of elevator operation.
As shown in Figure 1, home lift provided by the embodiments of the present application further include upper limit switch S1, lower position switch S2,
Emergency stop switch S6, tilt switch S7, power failure instruction switch S8, display board 140 in light curtain switch S3, case.
Upper limit switch S1 being triggered based on the upper limit level detecting apparatus of home lift, change the shape of its own
State, such as be connected from being disconnected to.Similarly, lower position switch S2 can also being triggered based on upper limit level detecting apparatus, change it
The state of itself.
In elevator uphill process, upper limit switch S1 is triggered based on upper limit level detecting apparatus, makes upper limit switch S1
State changes, and PLC controls motor 120 by frequency converter 110 and stops operating, so that the rising process of home lift be made to stop
Only.
During elevator decline, lower position switch S2 is triggered based on lower limit level detecting apparatus, makes lower position switch S2
State changes, and PLC controls motor 120 by frequency converter 110 and stops operating, so that the decline process of home lift be made to stop
Only.
In the embodiment of the present application, can further decrease lift car reach destination when and the destination between
Error, so that the bottom for making lift car and destination in same level, improve the usage experience of user.
Above-mentioned light curtain switch S3 is used to control the closing of elevator cab door.It can be set on elevator cab door and opened with light curtain
The corresponding light curtain device of S3 is closed, light curtain device can incude at the elevator cab door of unlatching whether have foreign matter.If the elevator opened
There is foreign matter at car door, then light curtain switch S3 can send signal to PLC, and PLC controls elevator cab door holding by the signal and opens
The state opened, does not turn off.If not having foreign matter at the elevator cab door opened, light curtain switch S3 can send signal to PLC,
PLC is closed according to the signal control elevator cab door received.
Emergency stop switch S6 is used to control the disconnection of elevator power supply.It may be provided in elevator corresponding with emergency stop switch S6
Scram button, in emergency situations, user, to send signal to PLC by emergency stop switch S6, can be made by triggering scram button
Controller PLC controls elevator power supply and disconnects.
Display board 140 indicates elevator for floor where showing lift car, and by showing arrow upward or downward
Carriage is in rising or decline state, to prompt user in the process of running.
In addition, as shown in Figure 1, home lift provided by the embodiments of the present application can also include third relay KA3, the 4th
Relay KA4, the 5th relay KA5.Third relay KA3, the 4th relay KA4, the 5th relay KA5 are respectively at PLC phase
Even.
PLC can control the open and close of the illumination of lift car by third relay KA3.Wherein, PLC can be in elevator
Car door is opened, load-carrying is more than control cage illumination unlatching under the conditions of preset threshold etc..
PLC can control lift car by the 4th relay KA4 to be stopped in abnormal cases, that is, realizes braking, above-mentioned
Unusual condition is the situation such as falling suddenly that elevator occurs in the process of running.Such as elevator does not stop transporting in destination
Row etc. brakes lift car under unusual conditions or when elevator meets other preset conditions so that elevator can and
When stop, improving the safety of elevator.
In a kind of embodiment of the application, it is also connected on frequency converter 410 and matches with the 4th relay KA4
Braking resistor R1.Braking resistor R1 is for cooperating the 4th relay KA4 to execute emergency braking.
PLC can send alarm signal by the 5th relay KA5, and prevent the closing of car door, so that in elevator car
Compartment 1 exceeds when default load-carrying, to guarantee the safety of elevator operation.
As shown in Figure 1, home lift further includes upper anti-collision switch Q1, lower anti-collision switch Q2, upper anti-collision switch Q1, lower anticollision
Switch Q2 is respectively at PLC connection.
It should be noted that being provided with upper anticollision detection corresponding with upper anti-collision switch Q1 in the home lift of the application
Device, lower anti-collision detection device corresponding with lower anti-collision switch Q2.
In the case where elevator operates normally, since the height of lift car is less than the height of single layer floor, elevator
The top of carriage will not usually encounter the top of floor.But (such as upper limit switch fails when elevator is operating abnormally
Deng), elevator is not braked in time after reaching destination, but continues up operation, to make elevator car roof and building
Bump against at layer top.In this case, upper anti-collision detection device is triggered, and is sent out based on anti-collision detection device in the triggering to PLC
Send corresponding signal, PLC controls upper anti-collision switch Q1 state according to the signal and changes, such as upper anticollision limit switch Q1 from
Disconnection becomes being connected, to make PLC control motor 120 stop operating, even if carriage stops movement.
Corresponding, when elevator is operating abnormally, elevator is not braked in time after reaching destination,
And be to continue with and run down, so that lift car bottom and floor bottom be made to bump against.In this case, lower anti-collision detection device
It is triggered, corresponding signal is sent to PLC based on anti-collision detection device under the triggering, so that PLC controls lower anti-collision switch Q2 shape
State changes, to make PLC control motor 120 stop operating, even if carriage stops movement.
Upper anti-collision switch Q1 and lower anti-collision switch Q2 can be effectively when elevator will collide with building, by controller
PLC control motor 120 is out of service, and realization in time brakes elevator, further enhances the safety of elevator, improves electricity
The reliability of ladder.
Fig. 4 is a kind of structural schematic diagram of home lift provided by the embodiments of the present application, and Fig. 5 is a kind of family shown in Fig. 4
With the partial structural diagram of elevator.As shown in Figure 4,5, home lift includes: carriage 1, rope 4, supporting element 11, articulated shaft
51, tilt detection part 53 and tilt-activated part 53.
Motor 2 is set to 1 outer surface of cupular part of carriage, and 4 one end of rope is connected with motor 2, on 4 other end of rope and carriage 1
Side.Rope 4 follows the rotation of motor 2 to collapse or discharge, so that carriage 1 is mobile.
Supporting element 11 is connected to 1 external surface top middle position of carriage, one end of motor 2 and supporting element by articulated shaft 51
11 are connected.Supporting element 11 is used to rotate along articulated shaft 51 to the side of the big rope of deflection, and the location following support of motor 2
The rotation of part 51 changes.Tilt detection part 52 is set to motor 2 and close to one end that motor 2 is connected with supporting element 11, inclines
Tiltedly the change in location of the location following motor 2 of detection 52 changes.Tilt-activated part 53 is set to tilt detection part 52
Lower section, and tilt-activated part 53 is connect with carriage 1.
In the present embodiment, the deflection difference of two ropes 4 can be such that supporting element 72 rotates along articulated shaft 73, two ropes 4
Deflection difference variation angle that supporting element 72 can be made to rotate to big 4 side of rope of deflection it is different, load it is bigger, two
The difference of 4 deflection of root rope is bigger, then the rotational angle of supporting element 72 is bigger, when load reaches the specified maximum negative of carriage 1
When load, the amount of spin of supporting element 72 is specified amount of spin at this time, and when carriage 1 overloads, the difference of the deflection of two ropes 4 is super
Rated capacity is crossed, and then the amount of spin of supporting element 72 is made to be more than specified amount of spin.
In running process of elevator, with the movement of motor 2 change in location can occur for tilt detection part 52, according to default
Tilt detection part 52 and tilt-activated part 53 between relative positional relationship, when elevator overload, tilt detection part 52 is moved to
The position of tilt-activated part 53.At this point, tilt-activated part 53 triggers tilt detection part 52.Tilt detection part 52 is based on the triggering,
Corresponding signal can be sent to electronic control module, so that electronic control module stops operating according to the signal control motor 2.
The embodiment of the present application provides a kind of home lift, passes through upstream switch, downing switch, the first relay, second
Relay, close mutual cooperation between switch, the time relay, frequency converter, PLC and motor.PLC according to upstream switch or
The state change of downing switch by the first relay or the second relay to control frequency converter, and passes through the control to frequency converter
The rotation direction of system adjustment motor, the upstream or downstream of elevator are realized with this.PLC passes through close switch and the time relay, with
This realizes that elevator accurately runs stopping.Through the above technical solutions, effectively reducing error present in elevator operation, mention
The high Stability and veracity of elevator operation, improves user experience.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
The above is only embodiments herein, are not intended to limit this application.To those skilled in the art,
Various changes and changes are possible in this application.It is all within the spirit and principles of the present application made by any modification, equivalent replacement,
Improve etc., it should be included within the scope of the claims of this specification.
Claims (8)
1. a kind of home lift, which is characterized in that the home lift include: programmable logic controller (PLC) PLC, upstream switch,
Downing switch, the first relay, the second relay, frequency converter, motor, close switch, the time relay；
The upstream switch is connected with the PLC, and rising button of the upstream switch based on the home lift is triggered,
And the rising switch state is made to change；First relay one end is connected with the PLC, the other end and the frequency conversion
Device is connected, and the frequency converter is connected with the motor；The PLC is used to be based on the rising switch state change, by described
First relay controls the frequency converter so that the motor rotates in a first direction, and then starts the upper of the home lift
The process of liter；
The downing switch is connected with the PLC, and declines button of the downing switch based on the home lift is triggered,
And the downing switch state is made to change；Second relay one end is connected with the PLC, the other end and the frequency conversion
Device is connected；The PLC is used to be based on the downing switch state change, by second relay control the frequency converter with
It rotates the motor in a second direction, and then starts the decline process of the home lift；
One end of the time relay is connected with the PLC, and the other end, which passes through close to switch, is connected to the frequency converter；It is described
Frequency converter is used to control the motor stalls close in the case where switch and/or the time relay disconnects described；
Wherein, the PLC is used in the case where the moving distance of the home lift is equal to preset threshold, is controlled described close to switch
It disconnects；And the PLC is also used in the case where the traveling time of the home lift is equal to preset time, when controlling described
Between relay disconnect.
2. home lift according to claim 1, which is characterized in that the home lift further include: encoder, the volume
The input terminal of code device is connected with the PLC, and the output end of the encoder is connected with the frequency converter；
Signal of the PLC based on the throw-over detection module from the home lift, and obtain the encoder accordingly
Coding result so that the frequency converter controls the revolving speed of the motor according to the coding result of the encoder, and then starts institute
State the deceleration process of home lift；
Wherein, the throw-over detection module includes throw-over detection piece and multiple throw-over actuated pieces, and the throw-over detection piece is set to
The position of the car side wall of the home lift and the close car top, each throw-over actuated piece are set to the home lift
Guide rail on, each throw-over brake component is identical as the distance between corresponding leveling, the corresponding throw-over actuated piece of each leveling；
The transposition actuated piece is used for when the throw-over detection piece reaches the position of the throw-over actuated piece, triggers the throw-over
Detection piece；
The throw-over detection piece is used to be based on the triggering, and Xiang Suoshu PLC sends corresponding signal.
3. home lift according to claim 1, which is characterized in that the home lift further includes light curtain switch, emergency stop
Switch, the light curtain switch, the emergency stop switch are connected with the PLC；
It is deposited at the elevator door for detecting the home lift when abnormal, the light curtain switch state changes, so that institute
It states PLC and controls the motor stalls；
The emergency stop switch is triggered for the scram button based on the home lift, and the emergency stop switch state occurs
Variation, so that the PLC controls the motor stalls.
4. home lift according to claim 1, which is characterized in that the elevator further includes upper limit switch, lower limit
Switch, the upper limit switch and the lower position switch are connected with the PLC；
The upper limit switch is used to be triggered based on the upper limit level detecting apparatus, and becomes upper limit switch state
Change, so that the PLC controls the motor stalls, so that the rising process of the home lift be made to stop；
The lower position switch is triggered based on the lower limit level detecting apparatus, and upper limit switch state is made to change,
So that the PLC controls the motor stalls, so that the decline of the home lift be made to be stopped.
5. home lift according to claim 1, which is characterized in that the frequency converter passes through PG card and the encoder phase
Even.
6. home lift according to claim 1, which is characterized in that first relay and the second relay group
At interlock circuit.
7. elevator according to claim 1, which is characterized in that the home lift further include third relay, the 4th after
Electric appliance, the third relay are not connected with the PLC with the 4th Ji electricity Qi Alto；
The PLC controls the lighting source of elevator by the third relay；And
The PLC controls elevator by the 4th relay to be stopped in abnormal cases；
The PLC controls the elevator by the 5th relay and sends alarm signal in abnormal cases.
8. home lift according to claim 7, which is characterized in that the home lift further includes braking resistor, described
Braking resistor is connected with the frequency converter；
The braking resistor is for cooperating the 4th relay to realize that the PLC control home lift stops in abnormal cases
Only.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910798551.XA CN110482345A (en) | 2019-08-27 | 2019-08-27 | A kind of home lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910798551.XA CN110482345A (en) | 2019-08-27 | 2019-08-27 | A kind of home lift |
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| Publication Number | Publication Date |
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| CN110482345A true CN110482345A (en) | 2019-11-22 |
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| CN201910798551.XA Pending CN110482345A (en) | 2019-08-27 | 2019-08-27 | A kind of home lift |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165133A (en) * | 2021-11-11 | 2022-03-11 | 张韶明 | Control method of safety door for mine |
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2019
- 2019-08-27 CN CN201910798551.XA patent/CN110482345A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165133A (en) * | 2021-11-11 | 2022-03-11 | 张韶明 | Control method of safety door for mine |
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