CN207881963U - Structural life-time detects load lifting limiter equipment - Google Patents
Structural life-time detects load lifting limiter equipment Download PDFInfo
- Publication number
- CN207881963U CN207881963U CN201720839624.1U CN201720839624U CN207881963U CN 207881963 U CN207881963 U CN 207881963U CN 201720839624 U CN201720839624 U CN 201720839624U CN 207881963 U CN207881963 U CN 207881963U
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- CN
- China
- Prior art keywords
- controller
- comparator
- load lifting
- structural life
- lifting limiter
- 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.)
- Expired - Fee Related
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- Control And Safety Of Cranes (AREA)
Abstract
The utility model discloses a kind of structural life-times to detect load lifting limiter equipment, including means for anti-jamming, gravity sensor, comparator, controller, delay circuit, gate circuit, monitoring system, the means for anti-jamming is connected with gravity sensor to exclude the interference signal, the gravity sensor is connected with comparator transmits gravitational cue, the comparator is connected with controller, comparison result is transmitted to controller by comparator, controller is separately connected delay circuit processed and starts and lift control ring current, delay circuit AND gate circuit is connected, gate circuit is connected with lift control ring current controls its break-make, controller is by control signal transmission to monitoring device.The utility model may be implemented to monitor stress and load in real time by multiple comparators and means for anti-jamming, realize structural life-time assessment, and promoted and applied on crane.
Description
Technical field
The utility model belongs to machinery equipment field, more particularly relates to intelligent life appraisal detection load lifting limiter
Equipment.
Background technology
Crane is indispensable in the industries such as petrochemical industry, metallurgy, building, hydraulic and electric engineering, harbour, machinery important sets
It is standby.Existing equipment has been on active service for many years mostly in enterprise, their remaining life or the prediction of limiting condition are that enterprise closes very much
The heart and problem in the urgent need to address.In the design process, lifetime limitation is according to load spectral coefficient and working level in specification
Determining, and the two should be combined by real load and be determined.But real load combination is difficult that precognition is accurate in the design process,
This can lead to designed service life and physical presence difference, or even very large deviation occur.Therefore in-service crane is determined
The life appraisal of phase is very important, and load lifting limiter is most important component part in life appraisal.
Load lifting limiter is one kind by detection coil electric current, pulling force sensor and pressure signal, and is converted into
Hoisting weight prevents hoisting machinery to be in the protective device of overload operation dangerous situation, also referred to as overload crane limiter.Lifting capacity limits
Device processed is a kind of control device of crane, includes mainly sensor and control instrument two parts.Sensor is lifted by crane for detecting
Weight signal, control instrument are judged according to hoisting weight, export desired status signal.Load lifting limiter is super in weight
Have the function of alarming and cutting off the power supply that crane corresponds to hoisting circuit when load, while can also show lifting weight of object, is
Integrate the important equipment of display, control and warning function.
Utility model content
1, purpose of utility model.
The utility model is in order to solve can not to monitor the load and life problems of crane, it is proposed that a kind of structural life-time inspection
Survey load lifting limiter equipment.
2, technical solution used by the utility model.
The utility model proposes a kind of structural life-times to detect load lifting limiter equipment, including means for anti-jamming, gravity
Sensor, comparator, controller, delay circuit, gate circuit, monitoring system, the means for anti-jamming and gravity sensor phase
Company excludes the interference signal, and the gravity sensor is connected with comparator transmits gravitational cue, the comparator and controller
It is connected, comparison result is transmitted to controller by comparator, and controller is separately connected delay circuit processed and starts and lift control circuit
Power supply, delay circuit AND gate circuit are connected, and gate circuit is connected with lift control ring current controls its break-make, and controller will control
Signal transmission is to monitoring device.
Further include solar powered module in further specific implementation mode, the solar powered module with it is anti-
Countermeasure set, gravity sensor are respectively connected with power supply, lasting can be powered for two devices external.
In further specific implementation mode, the comparator is that 3 independent comparators are connected with controller respectively.
Wherein three comparators independent of each other are acted respectively compared with different reference voltages.
In further specific implementation mode, further include that acoustic-optic alarm is connected with controller, once excess load is report
Alert prompt.
In further specific implementation mode, further include display screen, be connected with monitoring device, can intuitively see entire
Monitoring data.
In further specific implementation mode, the monitoring device further includes that wireless transmitter module and external equipment are logical
Letter, can carry out remote monitoring.
In further specific implementation mode, the monitoring device and external mobile communication can be at cell phone ends
End is monitored.
3, technique effect caused by the utility model.
The utility model may be implemented to monitor stress and load in real time by multiple comparators and means for anti-jamming,
Structural life-time assessment is realized, and is promoted and applied on crane.
Description of the drawings
Fig. 1 is the utility model building-block of logic.
Fig. 2 is the specific mounting means schematic diagram of the utility model.
Specific implementation mode
Embodiment 1
The load of crane is detected by resistance strain weighing transducer, and after crane loading object, sensor is pressurized
The voltage signal proportional to load is generated, weight is completed and is converted with voltage signal.Sensor output signal is by the integrated fortune of two-stage
Device is put to be amplified, amplified signal is sent into comparator, wherein three comparators independent of each other respectively from different benchmark
Voltage compares, and benchmark is set in 90%, 105%, the 130% of rated value respectively, and when load reaches 90%, pre-alarm is compared
Device acts, and buzzer sends out pulsed sound, and yellow indicator lamp is bright, but controls relay and be failure to actuate.It, should when load reaches 105%
The comparator of set-point acts, and moment falseness caused by shock loading overloads when to avoid starting, and is provided with a delay circuit,
After delay 3-4 seconds, if there are still judgement is really to overload, and cuts off hoisting motor power supply, red beacon lamp immediately for overload
It is bright.If load is more than 130%, directly gate circuit is made to open, cuts off crane hoisting control loop power supply immediately, be simultaneously emitted by
Sound-light alarm.The relay for executing control uses small-sized high-power DC relay, and when normal lifting, relay is failure to actuate,
Present apparatus control relay contact is connected in crane lifting.When overload, the actuating of relay is controlled, hoisting circuit is cut
Disconnected, crane stops raising operation, but does not influence the operation in other directions.
Installation method
A) it should check whether the type and spec of product nameplate is consistent with driving lifting capacity, multiplying power first, tighten spiral shell everywhere
Nail.Sensor installation form generally has two kinds：Bearing seat type and fixed pulley formula.(pay attention to：Sensor can be only installed at non-transmission
One end of power)
B) installation and wiring of electric control box opens instrument case, instrument is fixed in drivers' cab just with 2 M6 screws
In on the position of observation.Installation is secured, if drivers' cab vibration is excessively strong, should take vibration protection appropriate.
C) it must not be installed on and directly drench with rain and have in the environment of aggressive medium.
D) AC power of electric control box should be connected on the end of incoming cables of lifting electromechanical source, not controlled by other electrical equipments
System.
E) electric control box is after installation is complete, by line standard suspension in being moved together with monkey on cable trough,
Connecting correspondence markings can not wrong.
F) line RVVP4 × 0.6mm between sensor and electric control box2Shielded cable connects, sensor mask
Line ground connection is had to reliable.Power cord connects instrument power end, and control line is serially connected in crane hoisting control loop.Conducting wire is selected
Rubber flexible cable, the circuit of low-voltage control, control line should be as thick as possible, if control voltage is DC36V hereinafter, control line should add
Slightly arrive 1.5mm2。
G) the necessary reliable ground of shell, installation and wiring should meet GB3811-2008《Hoist design specification》It is related to want
It asks.
To the model of each device in addition to doing specified otherwise, the model of other devices does not limit the utility model embodiment
System, as long as the device of above-mentioned function can be completed.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiment of the utility model is not by above-mentioned
The limitation of embodiment, under other any Spirit Essences and principle without departing from the utility model made by change, modify, replace
In generation, simplifies combination, should be equivalent substitute mode, is included within the scope of protection of the utility model.
Claims (6)
1. a kind of structural life-time detects load lifting limiter equipment, it is characterised in that：Including means for anti-jamming, gravity sensor,
Comparator, controller, delay circuit, gate circuit, monitoring system, the means for anti-jamming is connected with gravity sensor to be excluded to do
Signal is disturbed, the gravity sensor is connected with comparator transmits gravitational cue, and the comparator is connected with controller, compares
Comparison result is transmitted to controller by device, and controller is separately connected delay circuit processed and starts and lift control ring current, delay
Circuit AND gate circuit is connected, and gate circuit is connected control its break-make with lift control ring current, and controller is by control signal transmission
To monitoring device, the comparator is that 3 independent comparators are connected with controller respectively.
2. structural life-time according to claim 1 detects load lifting limiter equipment, it is characterised in that：Further include solar energy
Power supply module, the solar powered module are respectively connected with power supply with means for anti-jamming, gravity sensor.
3. structural life-time according to claim 1 detects load lifting limiter equipment, it is characterised in that：It further include acousto-optic report
Alarm device is connected with controller.
4. structural life-time according to claim 1 detects load lifting limiter equipment, it is characterised in that：It further include display
Screen, is connected with monitoring device.
5. structural life-time according to claim 1 detects load lifting limiter equipment, it is characterised in that：The monitoring dress
Set further includes wireless transmitter module and external device communication.
6. structural life-time according to claim 1 detects load lifting limiter equipment, it is characterised in that：The monitoring dress
It sets and external mobile communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720839624.1U CN207881963U (en) | 2017-07-12 | 2017-07-12 | Structural life-time detects load lifting limiter equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720839624.1U CN207881963U (en) | 2017-07-12 | 2017-07-12 | Structural life-time detects load lifting limiter equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207881963U true CN207881963U (en) | 2018-09-18 |
Family
ID=63499910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720839624.1U Expired - Fee Related CN207881963U (en) | 2017-07-12 | 2017-07-12 | Structural life-time detects load lifting limiter equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207881963U (en) |
-
2017
- 2017-07-12 CN CN201720839624.1U patent/CN207881963U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215500 No.9, research institute road, Changshu Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: Leading optical technology (Changshu) Co.,Ltd. Address before: Room 209, Changshu Research Institute, Dalian University of technology, No. 9, research institute road, Changshu Economic and Technological Development Zone, Suzhou, Jiangsu 215513 Patentee before: SUZHOU ANZHISHANG ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180918 Termination date: 20210712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |