CN205802817U - A kind of programmable derrick crane automatic counterweight system - Google Patents
A kind of programmable derrick crane automatic counterweight system Download PDFInfo
- Publication number
- CN205802817U CN205802817U CN201620166993.4U CN201620166993U CN205802817U CN 205802817 U CN205802817 U CN 205802817U CN 201620166993 U CN201620166993 U CN 201620166993U CN 205802817 U CN205802817 U CN 205802817U
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- signal
- programmable controller
- programmable
- tension
- amplifier
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Abstract
This utility model relates to technical field of engineering machinery, a kind of programmable derrick crane automatic counterweight system.It includes audible-visual annunciator, programmable controller, man machine interface, signal processing module, tension-compression sensor, converter and counterweight motor；Tension-compression sensor detects the pressure signal of tower crane in real time and inputs a signal into signal processing module, signal is carried out processing and inputting a signal into programmable controller by signal processing module, signal is carried out arranging and signal feeding back to audible-visual annunciator, man machine interface and converter by programmable controller, signal is carried out display signal back programmable controller by man machine interface, and converter is by generation frequency variation signal and inputs a signal into counterweight motor.This utility model realizes pulling force and the detection of pressure of tower crane by tension-compression sensor；Utilize Programmable Controller to control the able to programme of program, thus meet the job requirement when different operating state.
Description
Technical field
This utility model relates to technical field of engineering machinery, and a kind of programmable derrick crane is certainly
Dynamic Weighting system.
Background technology
It is known that derrick crane (hereinafter referred to as tower crane) as urban architecture, construction transport and hangs
Pretending the important motivity equipment of industry, traditional tower crane generally uses disposable counterweight, under no-load condition,
The quality of counter-jib end is more than crane arm end quality；When being fully loaded with or overload, there is also crane arm end quality
More than counter-jib end quality.Tower crane is chronically at the mechanical strength under this unbalanced state, to its support
Require the highest.Aging along with tower crane equipment, easily produces serious eccentric phenomena, occurs great
Accident, causes serious casualties and huge property loss.
Utility model content
For above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide one to compile
The derrick crane automatic counterweight system of journey.
To achieve these goals, this utility model adopts the following technical scheme that
A kind of programmable derrick crane automatic counterweight system, it includes audible-visual annunciator, programmable
Controller, man machine interface, signal processing module, tension-compression sensor, converter and counterweight motor；
Described tension-compression sensor detects the pressure signal of tower crane in real time and inputs a signal into signal processing mould
Block, signal is carried out processing and inputting a signal into programmable controller, institute by described signal processing module
State programmable controller carry out signal arranging and fed back to by signal audible-visual annunciator, man machine interface and
Converter, signal is carried out display signal back programmable controller by described man machine interface, described
Converter is by generation frequency variation signal and inputs a signal into counterweight motor.
Preferably, described signal processing module includes filter circuit and amplifies comparison circuit, and described tension and compression pass
Sensor is connected with filter circuit, and signal is filtered processing and inputting a signal into putting by described filter circuit
Big comparison circuit, signal is amplified processing and inputting a signal into able to programme by described amplification comparison circuit
Sequence controller.
Preferably, described filter circuit includes the first amplifier, and the in-phase end of described first amplifier is by successively
Second resistance and first resistance of series connection are connected with tension-compression sensor, described first resistance and the second resistance it
Between by the outfan connection of the second electric capacity and the first amplifier, the in-phase end of described first amplifier and end of oppisite phase
Respectively by the first electric capacity and the 3rd resistance eutral grounding, the end of oppisite phase of described first amplifier by the 4th resistance with
The outfan of self connects, and described 4th resistor coupled in parallel has the 3rd electric capacity, the outfan of described first amplifier
It is connected with amplifying comparison circuit.
Owing to have employed such scheme, this utility model realizes pulling force and the pressure of tower crane by tension-compression sensor
The detection of power；Meanwhile, utilize Programmable Controller to control the able to programme of program, thus meet
Job requirement during different operating state；Further, breeding motor is utilized to realize the counterweight work of tower crane, profit
Danger early warning is realized with audible-visual annunciator.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of this utility model embodiment；
Fig. 2 is the electrical block diagram of the filter circuit of this utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but this utility model can
Implement with the multitude of different ways being defined by the claims and covering.
As it is shown in figure 1, the one programmable derrick crane automatic counterweight system that the present embodiment provides,
It includes audible-visual annunciator 1, programmable controller 2, man machine interface 3, signal processing module 9, draws
Pressure sensor 7, converter 4 and counterweight motor 8；
Tension-compression sensor 7 detects the pressure signal of tower crane in real time and inputs a signal into signal processing module
9, signal is carried out processing and inputting a signal into programmable controller 2 by signal processing module 9, can compile
Signal is carried out arranging and being fed back to by signal audible-visual annunciator 1, man machine interface 3 and become by cyclelog 2
Frequently device 4, signal is carried out display signal back programmable controller 2, converter by man machine interface 3
4 by generation frequency variation signal and input a signal into counterweight motor 8.
Further, signal processing module 9 includes filter circuit 6 and amplifies comparison circuit 5, tension-compression sensor
7 are connected with filter circuit 6, and signal is filtered processing and inputting a signal into amplification ratio by filter circuit 6
Relatively circuit 5, amplifies comparison circuit 5 and is amplified signal processing and inputting a signal into program controller PLC
Device 2.
The present embodiment tension-compression sensor 7 realizes the detection to tower crane pressure, and the signal detected then utilizes
Signal processing module 9 inputs to programmable controller 2 after processing, and utilizes programmable controller 2 to carry out
The arrangement of signal, wherein utilizes programmable controller 2 to realize, and wants for the work under different conditions
Ask, and be programmed, such that it is able to properer arrangement to signal that realizes controls.When finding detection
When signal occurs abnormal, then audible-visual annunciator 1 is utilized to send hydropac.The present embodiment utilizes man-machine boundary
Face realizes operator and checks specific works and operate, and utilizes counterweight motor 8 counterweight concrete to tower crane
The realization of work.
The filter circuit 6 of the present embodiment can use circuit structure as shown in Figure 2, i.e. includes the first amplifier
A1, the in-phase end of the first amplifier A1 is by the second resistance R2 being sequentially connected in series and the first resistance R1 and tension and compression
Sensor 7 connects, by the second electric capacity C2 and the first amplifier between the first resistance R1 and the second resistance R2
The outfan of A1 connects, and the in-phase end of the first amplifier A1 and end of oppisite phase are respectively by the first electric capacity C1 and the
Three resistance R3 ground connection, the end of oppisite phase of the first amplifier A1 is connected with the outfan of self by the 4th resistance R4,
4th resistance R4 is parallel with the 3rd electric capacity C3, and the outfan of the first amplifier A1 connects with amplifying comparison circuit 5
Connect.
The foregoing is only preferred embodiment of the present utility model, not thereby limit of the present utility model specially
Profit scope, every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process
Conversion, or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in this utility model
Scope of patent protection in.
Claims (3)
1. a programmable derrick crane automatic counterweight system, it is characterised in that: it includes acousto-optic report
Alert device, programmable controller, man machine interface, signal processing module, tension-compression sensor, converter and
Counterweight motor；
Described tension-compression sensor detects the pressure signal of tower crane in real time and inputs a signal into signal processing mould
Block, signal is carried out processing and inputting a signal into programmable controller, institute by described signal processing module
State programmable controller carry out signal arranging and fed back to by signal audible-visual annunciator, man machine interface and
Converter, signal is carried out display signal back programmable controller by described man machine interface, described
Converter is by generation frequency variation signal and inputs a signal into counterweight motor.
A kind of programmable derrick crane automatic counterweight system the most as claimed in claim 1, its feature
Be: described signal processing module include filter circuit and amplify comparison circuit, described tension-compression sensor with
Filter circuit connects, and signal is filtered processing and inputting a signal into amplification ratio relatively by described filter circuit
Circuit, signal is amplified processing and inputting a signal into program controller PLC by described amplification comparison circuit
Device.
A kind of programmable derrick crane automatic counterweight system the most as claimed in claim 2, its feature
Being: described filter circuit includes the first amplifier, the in-phase end of described first amplifier is by being sequentially connected in series
Second resistance and the first resistance are connected with tension-compression sensor, pass through between described first resistance and the second resistance
The outfan of the second electric capacity and the first amplifier connects, and in-phase end and the end of oppisite phase of described first amplifier lead to respectively
Cross the first electric capacity and the 3rd resistance eutral grounding, the end of oppisite phase of described first amplifier by the 4th resistance with self
Outfan connects, and described 4th resistor coupled in parallel has the 3rd electric capacity, the outfan of described first amplifier and amplification
Comparison circuit connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620166993.4U CN205802817U (en) | 2016-03-04 | 2016-03-04 | A kind of programmable derrick crane automatic counterweight system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620166993.4U CN205802817U (en) | 2016-03-04 | 2016-03-04 | A kind of programmable derrick crane automatic counterweight system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205802817U true CN205802817U (en) | 2016-12-14 |
Family
ID=58143435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620166993.4U Expired - Fee Related CN205802817U (en) | 2016-03-04 | 2016-03-04 | A kind of programmable derrick crane automatic counterweight system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205802817U (en) |
-
2016
- 2016-03-04 CN CN201620166993.4U patent/CN205802817U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20170304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |