CN206569852U - A kind of safety guard for door electric cable reel - Google Patents
A kind of safety guard for door electric cable reel Download PDFInfo
- Publication number
- CN206569852U CN206569852U CN201720237995.2U CN201720237995U CN206569852U CN 206569852 U CN206569852 U CN 206569852U CN 201720237995 U CN201720237995 U CN 201720237995U CN 206569852 U CN206569852 U CN 206569852U
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- cable
- speed
- service
- limit switch
- door machine
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Abstract
The utility model is related to a kind of safety guard for door electric cable reel, including controller, the first limit switch for detecting cable laying and for detecting the second limit switch of take-up, the first encoder of the speed of service for detecting door machine large vehicle walking and for the second encoder for the speed of service for detecting the cable drum；First and second limit switch, first and second encoder are communicated to connect with controller；When controller receives the value of feedback of the first or second limit switch, judge cable drum the speed of service whether be less than door machine large vehicle walking the speed of service reach preset value, when the speed of service that the speed of service of cable drum is less than door machine large vehicle walking reaches preset value, controller generates the control signal for controlling door machine cart to stop walking.The device be used to realizing cable is tensed or relaxed state real-time detection, it is highly reliable and sensitivity is high, it is to avoid to damage cable leading truck or cable, extension cable leading truck and cable service life.
Description
Technical field
The utility model belongs to an electric cable reel detection technique field, and in particular to a kind of for door electric cable reel
Safety guard.
Background technology
Gantry crane（Abbreviation door machine）During large vehicle walking, it is often necessary to which door machine from cable aperture to leading to coil of cable
Cable on disk carries out cable laying or take-up, and electric energy is provided for use in each functional part into door machine, the cable one end from
Cable aperture power taking is simultaneously led on cable leading truck, is wrapped in by cable leading truck on cable drum, and the cable other end
It is introduced to and is set with cable drum in integral cable slip ring box through cable drum center, by cable slip ring box by electric energy
Distribute to each functional part to be powered.
Cable drum uses hysteresis cable drum in the door machine of current 40 tons of harbour, and it couples magnetic couple by motor
Device is driven, and its protection device only relates to thermal protection for motors and cable termination position limitation protection.But in actual use,
Occur due to cable drum machinery clamping stagnation caused by cable drum bearing damage, magnetic coupling bearing damage, it is now electric
Cable reel can not normal retractable cable, cause cable slack or excessively pull, when door machine large vehicle walking, cable easily occur
Roll, break or cable leading truck is drawn bad danger by road wheel.The existing safeguard measure to cable is oriented in cable
Mounting torque is switched on frame, is triggered torque switch motion when cable is by excessive pull, is stopped door machine large vehicle walking, but this
Safeguard measure can not detect cable slack state, and can still have cable and rolled by road wheel causes cable bad, and trigger force
Square switch needs very big torque, and cable can be still subjected to significant forces, therefore still suffers from by the risk that drawing is bad or breaks, and torque
The adjusting of switch, the factor such as clamping stagnation can also influence its action sensitivity, cause that the protection to cable can not be realized.
Utility model content
The utility model provides a kind of safety guard for door electric cable reel, for solving in the prior art not
The problem of tension or relaxed state that can be to cable be detected, causes cable to be drawn potential safety hazard that is bad, breaking or roll, real
Now cable is tensed or relaxed state real-time detection, it is highly reliable and sensitivity is high, it is to avoid to cable leading truck or cable
Damage, extension cable leading truck and cable service life.
In order to realize above-mentioned technical purpose, the utility model provides following technical scheme and is achieved：
A kind of safety guard for door electric cable reel, it is characterised in that including controller, be arranged on cable and lead
It is used to detect the first limit switch of cable laying and for detecting the second limit switch of take-up, for detecting door machine cart on to frame
First encoder of the speed of service of walking and for the second encoder for the speed of service for detecting the cable drum；Described
One limit switch, the second limit switch, the first encoder and second encoder are communicated to connect with the controller；When the control
When device processed receives the value of feedback of first limit switch or the second limit switch, the speed of service of the cable drum is judged
The speed of service for whether being less than the door machine large vehicle walking reaches preset value, when the speed of service of the cable drum is less than the door
When the speed of service of machine large vehicle walking reaches the preset value, the controller is generated for controlling the door machine cart to stop walking
Control signal.
Further, it is described to be used for door machine in order to remind driver's large vehicle walking wheel to roll cable or cross tension cable
The safety guard of cable drum, in addition to warning device；Generated in the controller for controlling the door machine cart to stop
During the control signal only walked, sent a warning by warning device described in signal line traffic control.
Further, the warning device is loudspeaker, buzzer or indicator lamp.
In order to realize dual reliable alarm visually and acoustically, the warning device is the knot of loudspeaker and indicator lamp
Close, or be the combination of buzzer and indicator lamp.
It is used as another alternative technologies scheme of warning device, the safety guard for door electric cable reel
Also include loudspeaker and the voice broadcast module being connected with the loudspeaker, the voice broadcast module is connected with the controller；Institute
Controller is stated to generate for controlling the door machine cart to generate alarm signal, the voice while stopping the control signal of walking
Broadcasting module receives the alarm signal and controls the loudspeaker voice broadcast warning information.
Further, first encoder is arranged on the gear shaft of the motor reduction gearbox of the door machine cart, and institute
Second encoder is stated to be arranged on the central shaft of the cable drum.
Compared with prior art, the beneficial effect for the safety guard for door electric cable reel that the utility model is provided
Fruit and advantage are：When door machine cart at cable aperture by starting cable laying, cable encounters the first limit switch, and the first limit switch is anti-
Feedforward information represents current and starts cable laying to controller, and the first encoder detects a speed of service for machine large vehicle walking in real time, and the
Two encoders detect the speed of service of cable drum in real time, when the speed of service of cable drum is less than the operation of door machine large vehicle walking
When speed reaches preset value, represent that cable drum clamping stagnation occurs and causes speed excessively slow, there is the risk for drawing bad cable, therefore control door
Machine cart stops, and is easy to driver to investigate failure, when door machine cart at cable aperture by starting take-up, it is spacing that cable encounters second
Switch, the second limit switch feedback information to controller, expression currently starts take-up, and the first encoder detects a machine cart in real time
The speed of service of walking, and second encoder detects the speed of service of cable drum in real time, when the speed of service of cable drum is small
When the speed of service of door machine large vehicle walking reaches preset value, represent door machine large vehicle walking excessive velocities, there is cable slack and by
Road wheel rolls the risk of cable, therefore control door machine cart stops, and so that driver investigates failure, the safety guard can
The state of detection cable slack or tension is realized, and is controlled in time, it is highly reliable and sensitivity is high, it is to avoid cable is rolled, drawn
Break or draw bad risk, extend cable service life, and cable is tensed by cable leading truck, it is to avoid to the damage of cable leading truck
It is bad.
Brief description of the drawings
, below will be to this practicality in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in new embodiment or description of the prior art is made one and briefly introduced, it should be apparent that, it is described below
Accompanying drawing is some embodiments of the present utility model, for one of ordinary skill in the art, is not paying creative work
On the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of block diagram of embodiment of the safety guard of the present utility model for door electric cable reel.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
, it is necessary to cable power taking from cable aperture during door machine large vehicle walking, and by cable slip ring box by electric energy point
It is assigned to all parts of electric energy needed for a machine.The cable used in general Large-scale Mobile conveying equipment is longer, goes out from cable aperture
The cable come is wrapped on cable drum by cable leading truck, is easy to when using cable cable laying and is received when without using cable
Cable, but pulling cable is likely to occur in cable laying or occurs the potential safety hazard of driving rolling voltage cable in take-up.
The present embodiment is related to a kind of safety guard for door electric cable reel, including controller 1, is arranged on cable
It is used to detect the first limit switch 2 of cable laying and for detecting the second limit switch 3 of take-up, for detecting door machine on leading truck
First encoder 4 of the speed of service of large vehicle walking and for the second encoder 5 for the speed of service for detecting cable drum；The
One limit switch 2, the second limit switch 3, the first encoder 4 and second encoder 5 are communicated to connect with controller 2；Work as control
When device 1 receives the value of feedback of the first limit switch 2 or the second limit switch 3, judge whether the speed of service of cable drum is small
Preset value is reached in the speed of service of door machine large vehicle walking, when the speed of service of cable drum is less than the operation speed of door machine large vehicle walking
When degree reaches preset value, controller 1 generates the control signal for controlling door machine cart to stop walking.
Specifically, typically, the speed of service of door machine large vehicle walking keeps certain value, during door machine large vehicle walking, meeting
Occur because reel cable laying or the speed of take-up are excessively slow caused by cable drum mechanical breakdown, therefore in the present embodiment, the
One encoder 4 is arranged on a gear shaft for the motor reduction gearbox of machine cart, the speed of service for obtaining door machine large vehicle walking；
Second encoder 5 is arranged on the central shaft of cable drum, the speed of service for obtaining cable drum.Door machine large vehicle walking band
The dynamic cable drum being disposed thereon carries out cable laying or take-up, and when cable drum completes take-up or starts cable laying, cable is oriented to
Frame is placed exactly in the surface of cable hole site, and now cable had both touched less than the first limit switch 2 or touched open spacing less than second
3 are closed, represents that cable drum completes to draw over to one's side or start cable laying.When cable drum starts cable laying, door machine cart drives cable drum
Away from cable aperture, because cable stress tilts and causes the cable to touch first and spacing hold between cable aperture and cable leading truck
2 are closed, signal is fed back to controller 1 by the first limit switch 2, controller 1 receives the signal of feedback, represents current coil of cable
Disk carries out cable laying action.When carrying out cable laying, in order to avoid excessively tensing cable, control during door machine large vehicle walking
The operation for the cable drum that the speed of service and second encoder 5 for the door machine large vehicle walking that 1 pair of first encoder 4 of device is detected are detected
Speed is compared, if the speed of service that the speed of service of the cable drum is less than door machine large vehicle walking reaches preset value, table
Show that cable drum speed is excessively slow, now easily draw bad cable leading truck, the cable on cable drum damaged caused by pulling or draw
The problems such as powering off cable, controller 1 sends the control signal for stopping walking for door machine cart to PLC 12, PLC controls
The control door machine cart of device 12 stops, so that driver investigates failure（For example, cable drum bearing damage, magnetic coupling bearing are damaged
It is bad etc.）.When carrying out take-up, in order to avoid being caused during door machine large vehicle walking due to cable slack by rolling of driving a vehicle
Pressure, the speed of service for the door machine large vehicle walking that 1 pair of first encoder 4 of controller is detected and the coil of cable of the detection of second encoder 5
The speed of service of disk is compared, and is preset if the speed of service of the cable drum reaches less than the speed of service of door machine large vehicle walking
During value, door machine large vehicle walking excessive velocities are represented, now loose cable lags behind driving wheel, driving rolling piezoelectricity easily occur
The risk of cable, causes cable bad, and controller 1 sends the control signal for stopping walking for door machine cart to PLC
12, the control door machine cart of PLC 12 stops, so that driver investigates failure.
Further, in order to when failure occurs, notify driver to carry out malfunction elimination in time, in the present embodiment, set
Have a warning device 6, while controller 1 stops door machine large vehicle walking, the alert of warning device 6 to remind driver,
Wherein the warning device 6 can be buzzer 7, loudspeaker 8 or indicator lamp 9, and buzzer 7 or loudspeaker 9 can be controlled hair by controller 1
Go out buzzer or tucket, to transmit to driver's ear；Additionally, when the control door machine cart of controller 1 stops, indicator lamp
7 can be lighted or be flashed by the control of controller 1, visually to remind driver.The warning device 6 can also be buzzer 7
The combination of combination or loudspeaker 8 and indicator lamp 9 with indicator lamp 9, so as to from vision and acoustically double-reminding driver, is realized reliable
Alarm.
Alternatively, controller 1 can be with alert to voice broadcast module 10, should by voice broadcast module 10
Warning message is converted to voice messaging, and the voice messaging is reported away to be conveyed to driver's ear by loudspeaker 11, realizes alarm
The purpose of prompting.
In practice, when door machine cart completes to draw over to one's side or start cable laying, cable leading truck is placed exactly in cable hole site
Surface, now cable both touched less than the first limit switch 2 or touched less than the second limit switch 3, represent that cable drum completes to receive
Pull or start cable laying, such case belongs to the normal condition by cable hole site, even if the now speed of service of cable drum
Less than the speed of service of door machine large vehicle walking, it will not also alarm.
The safety guard for door electric cable reel of the present embodiment, door machine cart at cable aperture by starting cable laying
When, cable encounters the first limit switch 2, and the feedback information of the first limit switch 2 to controller 1, expression currently starts cable laying, first
Encoder 4 detects the speed of service of door machine cart in real time, and second encoder 5 detects the speed of service of cable drum in real time, when
When the speed of service that the speed of service of cable drum is less than door machine large vehicle walking reaches preset value, represent that cable drum clamping stagnation occurs and led
Cause speed excessively slow, there is the risk for breaking or drawing bad cable by cable leading truck, therefore control door machine cart stops walking, just
Failure is investigated in driver（For example, the bearing of cable drum or the bearing of magnetic coupling go wrong）, when door machine cart passes through
When starting take-up at cable aperture, cable encounters the second limit switch 3, and the feedback information of the second limit switch 3 to controller 1 is represented
Current to start take-up, the first encoder 4 detects the speed of service of door machine large vehicle walking in real time, and second encoder 5 is detected in real time
The speed of service of cable drum, when the speed of service that the speed of service of door machine large vehicle walking is more than cable drum reaches preset value,
Door machine large vehicle walking excessive velocities are represented, there is cable slack and the risk of cable is rolled by road wheel, therefore control door machine is big
Car stops walking, and so that driver investigates failure, the safety guard can realize the state of detection cable slack or tension, and
Control, highly reliable and sensitivity is high in time, it is to avoid cable is rolled, breaks or drawn bad risk, extends cable service life,
And cable is tensed by cable leading truck, it is to avoid the damage to cable leading truck.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technology of the utility model
The spirit and scope of scheme.
Claims (6)
1. a kind of safety guard for door electric cable reel, it is characterised in that including controller, be arranged on cable guiding
It is used to detect the first limit switch of cable laying and for detecting the second limit switch of take-up, for detecting that door gate machine is big on frame
First encoder of the speed of service that garage is walked and for the second encoder for the speed of service for detecting the cable drum；It is described
First limit switch, the second limit switch, the first encoder and second encoder are communicated to connect with the controller；When described
When controller receives the value of feedback of first limit switch or the second limit switch, the operation speed of the cable drum is judged
The speed of service whether degree is less than the door machine large vehicle walking reaches preset value, when the speed of service of the cable drum is less than described
When the speed of service of door machine large vehicle walking reaches preset value, the controller is generated for controlling the door machine cart to stop walking
Control signal.
2. the safety guard according to claim 1 for door electric cable reel, it is characterised in that also including alarm
Device；When the controller is generated for controlling the door machine cart to stop the control signal of walking, pass through signal line traffic control
The warning device sends a warning.
3. the safety guard according to claim 2 for door electric cable reel, it is characterised in that the alarm dress
It is set to loudspeaker, buzzer or indicator lamp.
4. the safety guard according to claim 3 for door electric cable reel, it is characterised in that the alarm dress
The combination of loudspeaker and indicator lamp is set to, or is the combination of buzzer and indicator lamp.
5. the safety guard according to claim 1 for door electric cable reel, it is characterised in that also including loudspeaker
The voice broadcast module being connected with the loudspeaker, the voice broadcast module is connected with the controller；The controller life
Into for controlling the door machine cart to generate alarm signal while stopping the control signal of walking, the voice broadcast module connects
Receive the alarm signal and control the loudspeaker voice broadcast warning information.
6. the safety guard for door electric cable reel according to any one of claim 1-5, it is characterised in that
First encoder is arranged on the gear shaft of the motor reduction gearbox of the door machine cart, and the second encoder is arranged on
On the central shaft of the cable drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720237995.2U CN206569852U (en) | 2017-03-13 | 2017-03-13 | A kind of safety guard for door electric cable reel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720237995.2U CN206569852U (en) | 2017-03-13 | 2017-03-13 | A kind of safety guard for door electric cable reel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206569852U true CN206569852U (en) | 2017-10-20 |
Family
ID=60057098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720237995.2U Expired - Fee Related CN206569852U (en) | 2017-03-13 | 2017-03-13 | A kind of safety guard for door electric cable reel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206569852U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021197052A1 (en) * | 2020-03-31 | 2021-10-07 | 三一海洋重工有限公司 | Control method and device for sling cable reel, and crane |
-
2017
- 2017-03-13 CN CN201720237995.2U patent/CN206569852U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021197052A1 (en) * | 2020-03-31 | 2021-10-07 | 三一海洋重工有限公司 | Control method and device for sling cable reel, and crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 Termination date: 20180313 |