CN202848912U - Portal crane - Google Patents
Portal crane Download PDFInfo
- Publication number
- CN202848912U CN202848912U CN 201220516993 CN201220516993U CN202848912U CN 202848912 U CN202848912 U CN 202848912U CN 201220516993 CN201220516993 CN 201220516993 CN 201220516993 U CN201220516993 U CN 201220516993U CN 202848912 U CN202848912 U CN 202848912U
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- CN
- China
- Prior art keywords
- drive
- hanging beam
- columns
- transfer crane
- portal frame
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- Expired - Fee Related
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Abstract
The utility model relates to a portal crane which comprises a portal frame. The portal frame comprises two column separated left and right, and a main beam bridged at the upper ends of the two columns. The portal crane further comprises a hanging beam for installing a corresponding lifting apparatus, wherein the hanging beam extends in the left-right direction in length. Both ends of the hanging beam are respectively assembled on the two columns through a corresponding guide structures along an up-down direction in a moveable manner. The portal frame is further provided with one or at least two transmission chains connected with the hanging beam to drive the hanging beam to lift up and down. The portal frame is further provided with a chain driving mechanism which drives one transmission chain to move circularly or each transmission chain to move synchronously and circularly. The portal crane provided by the utility model provides a portal frame capable of shortening the vertical distance between the main beam and the corresponding lifting apparatus.
Description
Technical field
The utility model relates to weight-lifting equipment, relates in particular to transfer crane.
Background technology
In the existing zinc-plated production process, often can use transfer crane, transfer crane is arranged at by the corresponding galvanized bath, will need zinc-plated steel construction piece to be lifted in the galvanized bath by transfer crane, carries out zincincation.Existing transfer crane comprises portal frame, portal frame comprises between left and right every two columns that arrange and bridges at the girder of two columns upper ends, two columns are along on the corresponding guide rail of being assemblied in of fore-and-aft direction guiding movement, electric block is installed on the girder, the below of electric block has mounted suspension hook by steel rope, and suspension hook is connected with suspender by corresponding rope again.This just causes existing transfer crane to have following problem: the vertical distance between girder and suspender is large, the suspender lifting altitude is corresponding to be reduced, can't satisfy operating needs, and in order to satisfy the requirement of using, just have to increase the height of column, corresponding column intensity also needs to increase, and the deadweight of hoisting crane is increased; Suspension hook is generally positioned at the middle part of girder simultaneously, reach the rigidity requirement of international middle girder, and girder just must be accomplished larger, and the corresponding like this weight that has increased girder and column is so that hoisting crane power consumption when work is larger.
The utility model content
The purpose of this utility model is to provide a kind of transfer crane that can reduce vertical distance between girder and the corresponding suspender.
In order to address the above problem, the technical solution of the utility model is: transfer crane, comprise portal frame, described portal frame comprises between left and right every two columns that arrange and bridges at the girder of described two columns upper end, described transfer crane comprises that also length is along the left and right directions extension and for the hanging beam that corresponding suspender is installed, the two ends of described hanging beam are being assemblied on two columns of guiding movement along the vertical direction of the guide frame by correspondence respectively, be provided with the driving chain that one or at least two and described hanging beam are in transmission connection to drive described hanging beam oscilaltion on the described portal frame, also be provided with the sprocket drive that drives a described driving chain cycle event or the action of each chain synchronous circulating on the described portal frame.
Described driving chain has two, two driving chains are in transmission connection with the two ends, the left and right sides of described hanging beam respectively, described sprocket drive comprises respectively two chain wheel set of corresponding setting with described two driving chains, each chain wheel set includes drive sprocket and the driven sprocket with corresponding driving chain interlock transmission, and described sprocket drive also comprises the synchronous power output element that rotates of the drive sprocket that drives in described each chain wheel set.
Described two drive sprockets are arranged at respectively the two ends, the left and right sides of described girder, the pivot center of two drive sprockets all extends and coaxial setting along left and right directions, described two driven sprockets are arranged at respectively the lower end of described corresponding column, described power output element comprises the drive motor that is arranged at described girder middle part, described drive motor have two coaxial and export the clutch end of synchronous rotation action with described drive sprocket, two clutch ends of described drive motor are in transmission connection by transmission shaft and described two drive sprockets of correspondence respectively.
Described two drive sprockets be arranged at respectively corresponding column directly over.
Also be respectively arranged with the tightening device for the corresponding driving chain of tensioning on described two columns.
Described guide frame is included in the notch that arranges on described two columns towards guide groove relative and that guide direction is all extended along the vertical direction, the two ends, the left and right sides of described hanging beam are respectively in the guide groove that is plugged in corresponding column of guiding movement, and the two ends of described hanging beam are equipped with two pivots center and extend and be used for track adjusting wheel with the both sides cell wall orienting roll running-fit of corresponding guide groove along left and right directions.
The lower end of described two columns is provided with length along the bearing that fore-and-aft direction extends, and is connected with between described two bearings along the setting of fore-and-aft direction spacing parallel arranging and length and all extends to guarantee the constant pipe link of spacing between described two columns along left and right directions.
Described two pipe links are divided into the both sides, front and back of described column.
The beneficial effects of the utility model are: during use, corresponding suspender directly links to each other with hanging beam, reduced the vertical distance between girder and the suspender, the height that does not so just need to increase column just can satisfy corresponding hoisting height demand, therefore can not increase the deadweight of hoisting crane.
Further, two drive sprockets are arranged at respectively the two ends of girder, the force part of girder is also just at the two ends of girder, the force-bearing situation of girder improves, and it is too large that girder does not need to do, through test, girder section after the improvement is long-pending be girder section before improving long-pending 1/2 ~ 2/3, reduced the deadweight of girder, the deadweight of corresponding column also can reduce, and has also just reduced the deadweight of whole hoisting crane.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the lateral plan of Fig. 1.
The specific embodiment
The embodiment of transfer crane of the present utility model is shown in Fig. 1 ~ 3: comprise between left and right every two guide rails 2 that are set up in parallel and guide direction is extended along fore-and-aft direction, on two guide rails 2 guiding movement be equipped with portal frame, transfer crane also comprises and drives the displacement detector that walking driver train 3 that portal frame wants guide rail to move forward and backward reaches for detection of the portal frame shift motion.Portal frame comprises that guiding movement respectively is assemblied in the column 5 on the corresponding guide rail 2 and bridges at the girder 8 of two column 5 upper ends, transfer crane comprises that also length is along the left and right directions extension and for the hanging beam 10 that corresponding suspender is installed, the two ends of hanging beam 10 are being assemblied on two columns 5 of guiding movement along the vertical direction of the guide frame by correspondence respectively, guide frame is included in the notch of setting on two columns 5 towards guide groove relative and that guide direction is all extended along the vertical direction, the two ends, the left and right sides of hanging beam 10 are respectively in the guide groove that is plugged in corresponding column of guiding movement, the two ends of hanging beam all are rotatably equipped with two pivots center along the track adjusting wheel that left and right directions extends, two track adjusting wheels that are positioned at the same end of hanging beam be distributed in hanging beam the front and back end and with the both sides cell wall orienting roll force fit of corresponding guide groove.Be provided with two on the portal frame and be in transmission connection to drive the driving chain of hanging beam oscilaltion with hanging beam 10, two driving chains are in transmission connection with the two ends, the left and right sides of hanging beam 10 respectively, also be provided with the sprocket drive that drives two driving chain synchronous circulating actions on the portal frame, sprocket drive comprises respectively two chain wheel set with two corresponding settings of driving chain, each chain wheel set includes drive sprocket 6 and the driven sprocket 1 with corresponding driving chain interlock transmission, also be respectively arranged with the tightening device for the corresponding driving chain of tensioning on two columns 5, tightening device comprises the sprocket drive that the corresponding driven sprocket 1 of driving moves up and down, two drive sprockets 6 are divided into the two ends, the left and right sides of girder 8, and two drive sprockets 6 be arranged in respectively corresponding column directly over, the pivot center of two drive sprockets 6 all extends and coaxial setting along left and right directions, and two driven sprockets 1 are arranged at respectively the lower end of corresponding column 5.Sprocket drive also comprises the drive sprocket 6 synchronous power output elements that rotate that drive in each chain wheel set, power output element comprises the drive motor 9 that is arranged at girder 8 middle parts, drive motor 9 have two coaxial and export the clutch end of synchronous rotation action with drive sprocket, two clutch ends of drive motor are in transmission connection with described two drive sprockets 6 by the transmission shaft 7 of correspondence respectively, also are provided with the height detecting device for detection of hanging beam oscilaltion stroke on portal frame.The lower end of two columns 5 is provided with the bearing 11 that length is extended along fore-and-aft direction, two 11 of bearings are connected with along the setting of fore-and-aft direction spacing parallel arranging and length and all extend to guarantee that along left and right directions constant 4, two pipe links 4 of pipe link of spacing between two columns are divided into the both sides, front and back of described column 5.
To the zinc-plated construction of associated workpiece the time, the suspender that is used for the lifting workpiece is directly installed on hanging beam 10, has reduced the vertical distance between girder 8 and the suspender, and corresponding hoisting height demand can be satisfied in the too higher position that column 5 does not need to do; The force part of girder 8 is at two ends rather than in the centre simultaneously, the part of girder 8 is stressed like this can be born by the column 5 of correspondence, the force-bearing situation of girder improves, what girder just can be done like this is too large, not corresponding yet the needs for guaranteeing the stable structural strength that increases column of girder, further reduce the deadweight of hoisting crane, saved the manufacturing cost of hoisting crane, also reduced hoisting crane power consumption in use simultaneously.By height detecting device and displacement detector, realize the accurate adjustment of hanging beam lifting altitude and portal frame walking displacement.By the setting of track adjusting wheel, limited hanging beam swinging in lifting process, thereby made the lifting of suspender pulsation-free.Two pipe links and two bearings consist of square box and strengthen structure, guarantee the spacing between two columns, so that the portal frame span can not be out of shape and change because of the long-term outer support of latter two column or the guide rail of using, because the guide rail of the type is contained on the steel framework apart from 1.5 meters to 2 meters on ground usually, after long-term the use, guide rail may be out of shape.
In other embodiment of the present utility model: driving chain can also only have one, and the middle part of driving chain and hanging beam is in transmission connection, and driving chain can also be three, four or more certainly, needs to guarantee the synchrodrive between each driving chain this moment; Tightening device can also be a tension wheel with corresponding driving chain interlock transmission.
Claims (8)
1. transfer crane, comprise portal frame, described portal frame comprises between left and right every two columns that arrange and bridges at the girder of described two columns upper end, it is characterized in that: described transfer crane comprises that also length is along the left and right directions extension and for the hanging beam that corresponding suspender is installed, the two ends of described hanging beam are being assemblied on two columns of guiding movement along the vertical direction of the guide frame by correspondence respectively, be provided with the driving chain that one or at least two and described hanging beam are in transmission connection to drive described hanging beam oscilaltion on the described portal frame, also be provided with the sprocket drive that drives a described driving chain cycle event or the action of each chain synchronous circulating on the described portal frame.
2. transfer crane according to claim 1, it is characterized in that: described driving chain has two, two driving chains are in transmission connection with the two ends, the left and right sides of described hanging beam respectively, described sprocket drive comprises respectively two chain wheel set of corresponding setting with described two driving chains, each chain wheel set includes drive sprocket and the driven sprocket with corresponding driving chain interlock transmission, and described sprocket drive also comprises the synchronous power output element that rotates of the drive sprocket that drives in described each chain wheel set.
3. transfer crane according to claim 2, it is characterized in that: described two drive sprockets are arranged at respectively the two ends, the left and right sides of described girder, the pivot center of two drive sprockets all extends and coaxial setting along left and right directions, described two driven sprockets are arranged at respectively the lower end of described corresponding column, described power output element comprises the drive motor that is arranged at described girder middle part, described drive motor have two coaxial and export the clutch end of synchronous rotation action with described drive sprocket, two clutch ends of described drive motor are in transmission connection by transmission shaft and described two drive sprockets of correspondence respectively.
4. transfer crane according to claim 3 is characterized in that: described two drive sprockets be arranged at respectively corresponding column directly over.
5. transfer crane according to claim 2 is characterized in that: also be respectively arranged with the tightening device for the corresponding driving chain of tensioning on described two columns.
6. transfer crane according to claim 1, it is characterized in that: described guide frame is included in the notch that arranges on described two columns towards guide groove relative and that guide direction is all extended along the vertical direction, the two ends, the left and right sides of described hanging beam are respectively in the guide groove that is plugged in corresponding column of guiding movement, and the two ends of described hanging beam are equipped with two pivots center and extend and be used for track adjusting wheel with the both sides cell wall orienting roll running-fit of corresponding guide groove along left and right directions.
7. the described transfer crane of any one according to claim 1-5, it is characterized in that: the lower end of described two columns is provided with length along the bearing that fore-and-aft direction extends, and is connected with between described two bearings along the setting of fore-and-aft direction spacing parallel arranging and length and all extends to guarantee the constant pipe link of spacing between described two columns along left and right directions.
8. transfer crane according to claim 7, it is characterized in that: described two pipe links are divided into the both sides, front and back of described column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220516993 CN202848912U (en) | 2012-10-10 | 2012-10-10 | Portal crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220516993 CN202848912U (en) | 2012-10-10 | 2012-10-10 | Portal crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202848912U true CN202848912U (en) | 2013-04-03 |
Family
ID=47980132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220516993 Expired - Fee Related CN202848912U (en) | 2012-10-10 | 2012-10-10 | Portal crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202848912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923582A (en) * | 2012-10-10 | 2013-02-13 | 纽科伦（新乡）起重机有限公司 | Gantry crane |
| CN104370209A (en) * | 2014-09-30 | 2015-02-25 | 福建海源自动化机械股份有限公司 | Large-scale portal frame |
-
2012
- 2012-10-10 CN CN 201220516993 patent/CN202848912U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923582A (en) * | 2012-10-10 | 2013-02-13 | 纽科伦（新乡）起重机有限公司 | Gantry crane |
| CN104370209A (en) * | 2014-09-30 | 2015-02-25 | 福建海源自动化机械股份有限公司 | Large-scale portal frame |
| CN104370209B (en) * | 2014-09-30 | 2016-07-06 | 福建海源自动化机械股份有限公司 | A kind of large-sized gantry frame |
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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: 20130403 Termination date: 20151010 |
|
| EXPY | Termination of patent right or utility model |