CN203229332U - Four-drum gantry crane - Google Patents
Four-drum gantry crane Download PDFInfo
- Publication number
- CN203229332U CN203229332U CN 201320214226 CN201320214226U CN203229332U CN 203229332 U CN203229332 U CN 203229332U CN 201320214226 CN201320214226 CN 201320214226 CN 201320214226 U CN201320214226 U CN 201320214226U CN 203229332 U CN203229332 U CN 203229332U
- Authority
- CN
- China
- Prior art keywords
- reel
- drive motor
- suspender
- movement
- gantry crane
- 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
Links
Images
Landscapes
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The utility model provides a four-drum gantry crane which comprises a gantry frame, a drive motor and a controller unit, wherein drums are arranged at the bottoms on the left and right sides of the gantry frame respectively; steel wire ropes are wound on the drums; one end of each steel wire rope correspondingly bypasses a fixed pulley of a trolley on the gantry frame and a movable pulley on a lifting appliance in sequence and is fixedly connected with the trolley; the drive motor is connected with the drums in a transmission way; the controller unit is electrically connected with the drive motor and used for controlling rotary states of the drums on the left and right sides of the gantry frame to control the trolley and the lifting appliance to move so as to enable the lifting appliance to generate a two-dimensional compound movement. According to the four-drum gantry crane, the lifting appliance can be enabled to generate a compound movement in a two-dimensional space, the compound movement can be decomposed into an up-and-down movement and a left-and-right movement, and a path of the compound movement is shorter than the sum of the paths of the up-and-down movement and the left-and-right movement. Therefore, by adopting the compound movement, the work efficiency of the lifting appliance is improved.
Description
Technical field
The utility model relates to the hoisting crane technical field, relates in particular to a kind of four winding drum gantry crane.
Background technology
Along with the development of Chinese national economy and the growth of international trade, China's freight container transportation development is very fast.General container handling crane generally comprises door frame at present, by parallel orbit dolly is installed on the door frame, actuating device is installed above the trolley frame is connected suspender, at trolley frame the movement that independent actuating device drives dolly is installed simultaneously.As seen, existing container handling crane drives the movement of dolly and the up-and-down movement of suspender respectively by the independent actuating device of two covers, and this kind structure causes container handling crane deadweight and scantling of structure all bigger.For solving all bigger problems of container handling crane deadweight and scantling of structure, and the four winding drum hoisting crane occurred, the hoisting crane of this form drives the movement of dolly and the up-and-down movement of suspender by four reels that are arranged in both sides, door frame bottom.Existing four winding drum hoisting crane can only carry out independent perpendicular movement or horizontal motion, and can not carry out compound motion, causes work efficiency lower.
The utility model content
Provide hereinafter about brief overview of the present utility model, in order to basic comprehension about some aspect of the present utility model is provided.Should be appreciated that this general introduction is not about exhaustive general introduction of the present utility model.It is not that intention is determined key of the present utility model or pith, neither be intended to limit scope of the present utility model.Its purpose only is that the form of simplifying provides some concept, with this as the preorder of discussing after a while in greater detail.
The utility model provides a kind of four winding drum gantry crane, after solving employing four winding drum control technology realization container handling crane complete machine lightness, suspender can not carry out compound motion, ineffective problem, make the four winding drum hoisting crane under the prerequisite that reduces equipment investment and maintenance cost, have higher work efficiency.
The utility model provides a kind of four winding drum gantry crane, comprising:
Door frame;
The bottom of the described door frame left and right sides is respectively arranged with reel, equal lay winding wire ropes on each described reel, and an end of each described steel rope is corresponding successively walks around the fixed pulley of dolly on the described door frame, the movable pulley on the suspender, and is connected with described cart stationary;
Drive motor is in transmission connection with described reel;
Controller unit is electrically connected with described drive motor, is used for controlling the rotary state of the described reel in the left and right sides, controls described dolly and described suspender moves, so that two-dimentional compound motion takes place described suspender.
The four winding drum gantry crane that the utility model provides, can make suspender compound motion in two-dimensional space, this compound motion can be decomposed into up-and-down movement and side-to-side movement, the path of compound motion is less than the path sum of up-and-down movement and side-to-side movement, therefore, adopt compound motion to improve the work efficiency of suspender.
Description of drawings
With reference to below in conjunction with the explanation of accompanying drawing to the utility model embodiment, can understand above and other purpose of the present utility model, characteristics and advantage more easily.Parts in the accompanying drawing are just in order to illustrate principle of the present utility model.In the accompanying drawings, same or similar technical characterictic or parts will adopt identical or similar Reference numeral to represent.
Fig. 1 is for realizing the hoisting crane schematic diagram of the four winding drum gantry crane that the utility model embodiment provides.
Description of reference numerals:
Reel-1; Change speed gear box-2; Steel rope-3;
Drive motor-4; Pulley-5; Movable pulley-6;
Movable pulley-7; Suspender-8; Frequency converter-9;
Control module-10.
The specific embodiment
Embodiment of the present utility model is described with reference to the accompanying drawings.The element of describing in an accompanying drawing of the present utility model or a kind of embodiment and feature can combine with element and the feature shown in one or more other accompanying drawing or the embodiment.Should be noted that for purpose clearly, omitted in accompanying drawing and the explanation and the utility model parts irrelevant, that those of ordinary skills are known and expression and the description of processing.
Fig. 1 is for realizing the hoisting crane schematic diagram of the four winding drum gantry crane that the utility model embodiment provides.As shown in Figure 1, the four winding drum gantry crane that the utility model embodiment provides comprises door frame; The bottom of the door frame left and right sides is respectively arranged with reel, equal lay winding wire ropes on each reel, and an end of each steel rope is corresponding successively walks around the fixed pulley of dolly on the door frame, the movable pulley on the suspender, and is connected with cart stationary; Drive motor and reel are in transmission connection; Controller unit is electrically connected with drive motor, is used for controlling the rotary state of the described reel in the left and right sides, controls described dolly and described suspender moves, so that two-dimentional compound motion takes place suspender.
The four winding drum gantry crane that the utility model provides, can make suspender compound motion in two-dimensional space, this compound motion can be decomposed into up-and-down movement and side-to-side movement, the path of compound motion is less than the path sum of up-and-down movement and side-to-side movement, therefore, adopt compound motion to improve the work efficiency of suspender.
Particularly, door frame can be the steel structure portal frame of welding in actual the use, the below of door frame is equipped with the road wheel device, the road wheel device can adopt rubber-tyred, also can adopt rail mounted.In the left and right sides of door frame two reels 1 are installed all, because door frame structure on two sides symmetry, only the leftmost side describes here.Referring to about this paper is said, is a left side over against the hoisting crane left-hand side, and right-hand side is right.Two reels, the 1 coaxial setting in left side, and be connected with the output shaft of same change speed gear box 2, a drive motor 4 connected on the input shaft of change speed gear box 2.Drive motor 4 rotates by two reels of change speed gear box 2 driven in synchronism 1.All twine steel cable 3 on each reel 1, steel rope 3 is on the movable pulley 6 on the dolly after pulley 5 commutation at door frame top, and through after movable pulley 6 commutation again on the movable pulley 7 on the suspender 8, requirement according to propulsive effort and maximum load can optionally be twined circle or a multi-turn at movable pulley 7 and 8 on fixed pulley, and an end of final steel rope 3 is fixedly connected on the dolly.
When carrying out lifting operation, respectively by control door frame left and right sides reel 1 turn to and rotating speed is controlled the final motion morphology of suspender 8.The final motion morphology of suspender 8 comprises up-and-down movement, with the motion of translation of dolly and compound motion (being the resultant motion of horizontal motion and vertical direction motion).
Further, rotation to reel 1 can realize that namely described controller unit comprises frequency converter 9 by frequency converter, and frequency converter 9 is electrically connected with drive motor, be used for each drive motor rotating speed that control drives left and right sides reel 1, control the rotary state of respective reel.Frequency converter 9 changes rotating speed of motor by the power frequency that changes the input value drive motor, and then the rotation of control respective reel.
Rotate by frequency converter 9 control motors, and then drive reel 1 rotation, make the motion of reel 1, dolly and suspender 8 satisfy following relation:
Wherein, v
xSpeed for suspender 8 horizontal directions; v
ySpeed for suspender 8 vertical directions; v
1Steel rope 3 coiling speeds of drawing for left side reel 1; v
2Steel rope 3 coiling speeds of drawing for right side reel 1.
When having only suspender 8 to carry out up-and-down movement (also being dipping and heaving), the drive motor 4 of door frame both sides rotates synchronously, controls each reel 1 of door frame both sides accordingly with the folding and unfolding steel rope 3 of speed.With receiving steel rope 3 suspender 8 is risen, suspender 9 descends when putting steel rope 3 together.At this moment namely, v
x=0, v
2=v
1
When having only the dolly sway, a control one side reel 1 in two drive motor 4 in door frame both sides is received steel rope 3, and the reel 1 of another control opposite side is put steel rope 3 with speed.At this moment, v
y=0, v
2=-v
1
When suspender 8 carried out two-dimentional compound motion, namely the componental movement of suspender 8 existing levels also had vertical componental movement.
The rotating speed of door frame both sides reel 1 can see table 1, and following table 1 has provided the data of corresponding suspender 8 up-and-down movements, dolly sway, suspender 8 two-dimentional compound motions.The data that following table 1 provides are wherein a kind of implementations of the utility model, should not be construed as restriction of the present utility model.
Table 1
Further, based on above-described embodiment, control unit comprises that also control module 10 is connected with frequency converter electricity 9, be used for according to predetermined velocity amplitude, obtain the power frequency that frequency converter exports two drive motor respectively to, can be referring to table 1, each drive motor rotates according to the power frequency of input, controls the rotary state of corresponding reel.According to the data of last table 1, control the frequency of power supply in the input drive motor 4 accordingly by a frequency converter, and then obtain the different rotating speeds of drive motor 4, realize the action in the table 1 accordingly.The mode that aforesaid way, the type of drive that the reel 1 of the left and right sides rotates have all adopted AC frequency conversion to drive, because frequency can change continuously, therefore, dolly, suspender 8 are starting when stopping relative steadily, have reduced impact.
Further, based on above-described embodiment, also comprise tachogen, be arranged at the end of described reel.Wherein, tachogen can be code-disc, and it is fixed on the end of reel, and with the coaxial setting of rotating cylinder.Tachogen can also be other magnetic or opto-electronic pickup.
The velocity amplitude that control module records in real time according to tachogen and prefabricated target speed value compare, if the real-time speed value is different with target speed value, then change the power frequency of drive motor with the rotating speed of change drive motor by frequency converter, make real-time speed consistent with target speed value.Each gear has one-to-one relationship in target speed value and the table 1.
Particularly, if the real-time rotating speed of a certain reel is then heightened the power frequency that frequency converter exports the drive motor of this reel correspondence to greater than predetermined velocity amplitude; If the real-time rotating speed of a certain reel is then turned down the power frequency that frequency converter exports the drive motor of this reel correspondence to less than predetermined velocity amplitude.
The folding and unfolding speed of steel rope 3 and the rotating speed of reel 1 have corresponding relation, and along with the variation of reel 1 speed, the folding and unfolding speed of steel rope 3 is respective change also, be that reel 1 speed accelerates, then steel rope 3 folding and unfolding speed accelerate, and reel 1 rotating speed is slack-off, and then steel rope 3 folding and unfolding speed are also slack-off.
The rotating speed of power frequency and drive motor 4 has corresponding relation, i.e. the rotating speed of the unique corresponding drive motor of a certain power frequency.
It should be noted that at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (4)
1. a four winding drum gantry crane is characterized in that, comprising:
Door frame;
The bottom of the described door frame left and right sides is respectively arranged with reel, equal lay winding wire ropes on each described reel, and an end of each described steel rope is corresponding successively walks around the fixed pulley of dolly on the described door frame, the movable pulley on the suspender, and is connected with described cart stationary;
Drive motor is in transmission connection with described reel;
Controller unit is electrically connected with described drive motor, is used for controlling the rotary state of the described reel in the left and right sides, controls described dolly and described suspender moves, so that two-dimentional compound motion takes place described suspender.
2. four winding drum gantry crane according to claim 1, it is characterized in that described controller unit comprises frequency converter, described frequency converter is electrically connected with described drive motor, be used for each drive motor rotating speed that control drives the described reel in the left and right sides, control the rotary state of respective reel.
3. four winding drum gantry crane according to claim 2 is characterized in that, described control unit also comprises:
Control module, be electrically connected with described frequency converter, be used for obtaining the power frequency that frequency converter exports two described drive motor respectively to according to predetermined velocity amplitude, each described drive motor rotates according to the described power frequency of input, controls the rotary state of corresponding reel.
4. according to the arbitrary described four winding drum gantry crane of claim 1-3, it is characterized in that, also comprise: tachogen is arranged at the end of described reel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214226 CN203229332U (en) | 2013-04-24 | 2013-04-24 | Four-drum gantry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214226 CN203229332U (en) | 2013-04-24 | 2013-04-24 | Four-drum gantry crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203229332U true CN203229332U (en) | 2013-10-09 |
Family
ID=49285470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320214226 Expired - Fee Related CN203229332U (en) | 2013-04-24 | 2013-04-24 | Four-drum gantry crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203229332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264961A (en) * | 2013-04-24 | 2013-08-28 | 交通运输部水运科学研究所 | Four-reel gantry crane |
-
2013
- 2013-04-24 CN CN 201320214226 patent/CN203229332U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264961A (en) * | 2013-04-24 | 2013-08-28 | 交通运输部水运科学研究所 | Four-reel gantry crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103264961A (en) | Four-reel gantry crane | |
| CN205772414U (en) | A kind of efficient cable rewinding machine | |
| CN204614662U (en) | Based on the dry-type air-core reactor spooling equipment of tension automatic control | |
| CN103287983A (en) | Gantry-type four-drum wheeled crane | |
| CN202936110U (en) | Crane machinery | |
| CN203229332U (en) | Four-drum gantry crane | |
| CN201080414Y (en) | Container multipurpose machine for assembling and disassembling door | |
| CN103264957B (en) | Regenerative braking crane | |
| CN203319559U (en) | Regenerative braking crane | |
| CN103287975B (en) | Hoisting crane compound motion control method | |
| CN203946809U (en) | Light-type boom crane | |
| CN203922561U (en) | The electronic active heave compensation control system of a kind of Novel pure | |
| CN203199909U (en) | Gantry-type four-winding-drum wheel crane | |
| CN208265661U (en) | A kind of Small-size crane for building construction | |
| CN207713245U (en) | The anti-torsion control device of suspender | |
| CN105174104A (en) | Novel pure electric active heave compensation control system and control method thereof | |
| CN106081927A (en) | Gantry container crane suspender is the most anti-shakes method | |
| CN204057804U (en) | The two hoisting-point electric cucurbit of unit that a kind of electromagnetic braking is slowed down | |
| CN209583457U (en) | Micro radio controls high pedestal jib crane device | |
| CN203112358U (en) | System for electrical compensation of luffing mechanism of gantry crane | |
| CN209143534U (en) | A kind of direct-drive intelligent bridge-type double beam crane | |
| CN207861724U (en) | A kind of monkey and crane | |
| CN202185485U (en) | Automatic pay-off conversion device of cantilever | |
| CN207030223U (en) | It is a kind of can be with the steady type elevator of direction movement | |
| CN202643150U (en) | Space six degrees of freedom large-scale heavy load hoisting cooperation soft cable parallel configuration device |
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: 20131009 Termination date: 20170424 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |