CN207645650U - Tower crane lifting luffing linkage - Google Patents
Tower crane lifting luffing linkage Download PDFInfo
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- CN207645650U CN207645650U CN201721788455.XU CN201721788455U CN207645650U CN 207645650 U CN207645650 U CN 207645650U CN 201721788455 U CN201721788455 U CN 201721788455U CN 207645650 U CN207645650 U CN 207645650U
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- tower crane
- luffing
- frequency converter
- motor
- controller
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Abstract
The utility model is suitable for movable arm tower crane technical field, provide a kind of tower crane lifting luffing linkage, including hoisting motor and luffing motor, it further include the first frequency converter, second frequency converter, angular transducer and controller, first frequency converter connects hoisting motor, second frequency converter connects luffing motor, first frequency converter, second frequency converter and angular transducer are all connected with controller, angular transducer is used to detect the magnitude of inclination of tower crane swing arm, first frequency converter is used to control the rotating speed of hoisting motor, second frequency converter is used to control the rotating speed of luffing motor, controller controls the work of the first frequency converter and the second frequency converter.It realizes in this manner and carries out automatic linkage between hoisting motor and luffing motor, it can ensure that weight holding is horizontal when luffing motor rotates, operator only needs the rotating speed of operation and control luffing motor, reduces the operation requirement to operator, keeps operation simpler.
Description
Technical field
The utility model belongs to movable arm tower crane technical field more particularly to a kind of tower crane lifting luffing linkage.
Background technology
Along with derrick crane development in science and technology, urban architecture density is gradually increased.According to the development of current building industry
Trend, movable arm type increasingly increase from tower crane demand is risen.The movable arm type tower crane tail portion radius of gyration is small, can in tearing down and building reconstruction project
It effectively avoids the occurrence of that derrick runway girder bumps against with Adjacent Buildings, is suitable for the building site of narrow space.Have simultaneously super
Big hoisting moment, superelevation lifting altitude, higher lifting velocity can give full play to advantage in the construction of skyscraper.Movable arm type
The design of tower crane arm uses " bar " structure, and more preferable relative to horizontal arm tower crane " beam " structural stability can, boom structure accounts for complete machine
The ratio smaller of structure weight, and the biggest lifting capacity then bigger.This kind of tower crane uses revolving platform mechanism new design, such design
It can be effectively improved stress, enhance horizontal rigidity.Movable arm type tower crane be also equipped with it is outer climb, it is interior the functions such as climb, walk, to meet respectively
The different working conditions of class building.
But movable arm tower crane has a disadvantage, when needing lifting weight to move horizontally, needs lifting amplitude-change while the ability that links
It realizes.Traditional type tower crane speed control is controlled using different stalls, at this time because moving brachiocubital angle change, lifts weight
The position movement that will produce both direction, the shifting of weight level could be allowed by needing to allow the raising of swing arm and luffing to act simultaneously at this time
It is dynamic.And forearm, in different angle, the two direction displacements that luffing generates are also different, and lifting mechanism is needed to change different speed at any time
It spends to coordinate, therefore this demand for control is very high to the skill set requirements of tower crane operator.
Utility model content
In view of this, the utility model embodiment provides a kind of tower crane lifting luffing linkage, to solve existing skill
It needs when movable arm tower crane translates weight in art while manipulating the speed of hoisting motor and luffing motor, high ask is required to operator
Topic has the effect of autobalance weight horizontal velocity and vertical speed, keeps weight translation.
In order to solve the above technical problems, technical solution adopted in the utility model is：A kind of tower crane lifting luffing linkage
Device, including hoisting motor and luffing motor further include the first frequency converter, the second frequency converter, angular transducer and controller, institute
It states the first frequency converter and connects the hoisting motor, second frequency converter connects the luffing motor, first frequency converter, institute
It states the second frequency converter and the angular transducer is all connected with the controller, the angular transducer is for detecting tower crane swing arm
Magnitude of inclination, first frequency converter are used to control the rotating speed of hoisting motor, and second frequency converter is for controlling the luffing
The rotating speed of motor, the controller control the work of first frequency converter and second frequency converter.
Further, tower crane lifting luffing linkage further includes operation panel, and the operation panel is mounted on tower crane
In control room, the operation panel connects the controller, and the operation panel is inputted for command information.
Further, tower crane lifting luffing linkage further includes display device, and the display device is mounted on tower crane
In control room, the display device connects the controller, for showing tower crane working condition.
Further, tower crane lifting luffing linkage further includes warning device, and the warning device is mounted on tower crane control
System is indoor, and the warning device connects the controller.
Further, the warning device includes flash lamp and buzzer.
Further, the controller is microcontroller or PLC.
Further, the hoisting motor and the included encoder of luffing motor.
It is using advantageous effect caused by above-mentioned technical proposal：The utility model is by designing tower crane lifting luffing connection
Dynamic device, including hoisting motor and luffing motor, further include the first frequency converter, the second frequency converter, angular transducer and controller,
First frequency converter connects hoisting motor, and the second frequency converter connects luffing motor, the first frequency converter, the second frequency converter and angle sensor
Device is all connected with controller, and angular transducer is used to detect the magnitude of inclination of tower crane swing arm, and the first frequency converter is for controlling raising electricity
The rotating speed of machine, rotating speed of second frequency converter for controlling luffing motor, controller the first frequency converter of control and the second frequency converter
Work.When tower crane lifting weight is translated, starts controller and rotated by the second Frequency Converter Control luffing motor, same to time control
The elevation angle for the rotating speed and swing arm that device processed monitors tower crane luffing motor by the second frequency converter and angular transducer changes, according to luffing
Motor speed and the variation of the swing arm elevation angle calculate the variation of weight upright position, i.e. lifting velocity, controller passes through the first frequency converter
Control hoisting motor is rotated with calculated lifting velocity, realizes carried out between hoisting motor and luffing motor in this manner
Automatic linkage can ensure that weight holding is horizontal when luffing motor rotates, and operator only needs operation and control luffing motor
Rotating speed reduces the operation requirement to operator, keeps operation simpler.
Description of the drawings
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new
Some embodiments of type for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the functional block diagram for the tower crane lifting luffing linkage that the utility model embodiment one provides；
Fig. 2 is the functional block diagram for the tower crane lifting luffing linkage that the utility model embodiment two provides；
Fig. 3 is the functional block diagram for the tower crane lifting luffing linkage that the utility model embodiment three provides；
Fig. 4 is the functional block diagram for the tower crane lifting luffing linkage that the utility model embodiment four provides.
Specific implementation mode
In being described below, for illustration and not for limitation, it is proposed that such as tool of particular system structure, technology etc
Body details, to understand thoroughly the utility model embodiment.However, it will be clear to one skilled in the art that there is no these
The utility model can also be realized in the other embodiments of detail.In other situations, omit to well-known system,
The detailed description of apparatus, circuit and method, in case unnecessary details interferes the description of the utility model.
In order to illustrate technical solution described in the utility model, illustrated below by specific embodiment.
As shown in Figure 1, the functional block diagram of the tower crane lifting luffing linkage provided for the utility model embodiment one, tower
Machine lifting amplitude-change linkage includes hoisting motor and luffing motor, further includes the first frequency converter, the second frequency converter, angle sensor
Device and controller, the first frequency converter connect hoisting motor, and the second frequency converter connects luffing motor, the first frequency converter, the second frequency conversion
Device and angular transducer are all connected with controller, and angular transducer is used to detect the magnitude of inclination of tower crane swing arm, and the first frequency converter is used
In the rotating speed of control hoisting motor, the second frequency converter is used to control the rotating speed of luffing motor, controller control the first frequency converter and
The work of second frequency converter.
When tower crane lifting weight is translated, starts controller and rotated by the second Frequency Converter Control luffing motor, together
When controller rotating speed and swing arm that tower crane luffing motor is monitored by the second frequency converter and angular transducer the elevation angle change, according to
Luffing motor speed and the variation of the swing arm elevation angle calculate the variation of weight upright position, i.e. lifting velocity, controller becomes by first
Frequency device control hoisting motor is rotated with calculated lifting velocity, is realized between hoisting motor and luffing motor in this manner
Automatic linkage is carried out, can ensure that weight holding is horizontal when luffing motor rotates, operator only needs operation and control luffing electric
The rotating speed of machine reduces the operation requirement to operator, keeps operation simpler.
In one embodiment of the utility model, controller is microcontroller or PLC.
As shown in Fig. 2, the functional block diagram of the tower crane lifting luffing linkage provided for the utility model embodiment two, tower
Machine lifting amplitude-change linkage further includes operation panel, and operation panel is mounted in the control room of tower crane, operation panel connection control
Device processed, operation panel are inputted for command information.
Operator can control the action of hoisting motor and luffing motor by operation panel, at the same can also realize manually and
Automatically switching, the operability of intensifier entirety.
As shown in figure 3, the functional block diagram of the tower crane lifting luffing linkage provided for the utility model embodiment three, tower
Machine lifting amplitude-change linkage further includes display device, and display device is mounted in the control room of tower crane, display device connection control
Device processed, for showing tower crane working condition.
Display device can show the various working conditions of tower crane, such as hoisting motor rotating speed, luffing motor speed, tower crane
Swing arm elevation angle etc., operator can get information about the working condition of tower crane by display device, and member easy to operation is to tower crane
Control.
As shown in figure 4, the functional block diagram of the tower crane lifting luffing linkage provided for the utility model embodiment four, tower
Machine lifting amplitude-change linkage further includes warning device, and warning device is mounted in tower crane control room, warning device connection control
Device.
Since controller can be monitored hoisting motor, luffing motor and the tower crane swing arm elevation angle, when it is therein some
When part is broken down, controller control warning device is alarmed, and enables the operator to recognize fault message at the first time,
It is handled in time, prevents accident, increase the characteristic that warning device improves tower crane safe handling.
In one embodiment of the utility model, warning device includes flash lamp and buzzer.It is reported in warning device
When alert, flash lamp carries out fast blink, and buzzer sends out the sound simultaneously, carries out sound-light alarm, ensures that operator can receive report
Alert information, improves the effective percentage of alarm.
In one embodiment of the utility model, hoisting motor and the included encoder of luffing motor.Hoisting motor and change
Width motor carries the intercommunication that encoder is easy to implement motor and frequency converter, reduces the difficulty of device design.
Embodiment described above is only to illustrate the technical solution of the utility model, rather than its limitations；Although with reference to before
Embodiment is stated the utility model is described in detail, it will be understood by those of ordinary skill in the art that：It still can be with
Technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；And
These modifications or replacements, the spirit for various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
And range, it should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of tower crane lifting luffing linkage, including hoisting motor and luffing motor, which is characterized in that further include the first change
Frequency device, the second frequency converter, angular transducer and controller, first frequency converter connect the hoisting motor, and described second becomes
Frequency device connects the luffing motor, and first frequency converter, second frequency converter and the angular transducer are all connected with described
Controller, the angular transducer are used to detect the magnitude of inclination of tower crane swing arm, and first frequency converter is for controlling raising electricity
The rotating speed of machine, second frequency converter are used to control the rotating speed of the luffing motor, and the controller controls first frequency conversion
The work of device and second frequency converter.
2. tower crane lifting luffing linkage according to claim 1, which is characterized in that further include operation panel, it is described
Operation panel is mounted in the control room of tower crane, and the operation panel connects the controller, and the operation panel is for instructing
Information input.
3. tower crane lifting luffing linkage according to claim 1, which is characterized in that further include display device, it is described
Display device is mounted in the control room of tower crane, and the display device connects the controller, for showing tower crane working condition.
4. tower crane lifting luffing linkage according to claim 1, which is characterized in that further include warning device, it is described
Warning device is mounted in tower crane control room, and the warning device connects the controller.
5. tower crane lifting luffing linkage according to claim 4, which is characterized in that the warning device includes flash of light
Lamp and buzzer.
6. tower crane lifting luffing linkage according to claim 1, which is characterized in that the controller be microcontroller or
PLC。
7. tower crane lifting luffing linkage according to claim 1, which is characterized in that the hoisting motor and luffing electricity
The included encoder of machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721788455.XU CN207645650U (en) | 2017-12-20 | 2017-12-20 | Tower crane lifting luffing linkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721788455.XU CN207645650U (en) | 2017-12-20 | 2017-12-20 | Tower crane lifting luffing linkage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207645650U true CN207645650U (en) | 2018-07-24 |
Family
ID=62877733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721788455.XU Active CN207645650U (en) | 2017-12-20 | 2017-12-20 | Tower crane lifting luffing linkage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207645650U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302244A (en) * | 2020-02-28 | 2020-06-19 | 徐州建机工程机械有限公司 | Backward-tilting prevention control system and method for movable arm tower crane |
-
2017
- 2017-12-20 CN CN201721788455.XU patent/CN207645650U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302244A (en) * | 2020-02-28 | 2020-06-19 | 徐州建机工程机械有限公司 | Backward-tilting prevention control system and method for movable arm tower crane |
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