CN201338920Y - Lifting mechanism of crane - Google Patents
Lifting mechanism of crane Download PDFInfo
- Publication number
- CN201338920Y CN201338920Y CNU2008202230008U CN200820223000U CN201338920Y CN 201338920 Y CN201338920 Y CN 201338920Y CN U2008202230008 U CNU2008202230008 U CN U2008202230008U CN 200820223000 U CN200820223000 U CN 200820223000U CN 201338920 Y CN201338920 Y CN 201338920Y
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- CN
- China
- Prior art keywords
- crane
- pulley
- reel
- actuating device
- drive devices
- 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 - Lifetime
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Abstract
The utility model discloses a lifting mechanism of a crane, which relates to a lifting component of the crane and comprises drive devices; each drive device comprises a motor, a coupling, an arrester, a decelerator and a winding drum. The number of the drive devices is two and the two drive devices are arranged on a trolley frame in an axis-symmetric manner; at least two pulleys are arranged between the winding drum of the two drive devices. The lifting mechanism can be widely applied to bridge cranes and gantry cranes, especially applicable to crane with large tonnage; two drive devices are adopted; therefore, even one drive device fails, the normal work of the whole crane is not affected, thereby causing the crane to be safer and more reliable.
Description
Technical field
The utility model relates to the weight-lifting equipment technical field, exactly relates to the heavy parts that rises of hoisting crane.
Background technology
In recent years, the construction that starts along with the many emphasis mega projects of country (as water power, flood control, harbour etc.), the market demand of various large-tonnage bridge-types and transfer crane constantly increases, and the utilization of novel crane hoisting mechanism will be played good impetus to the technological advance of hoisting crane.
At present, existing hoisting crane has only a cover actuating device mostly, its basic structure comprises electrical motor, coupler, drg, reductor, reel, the pulley gear of forming by fixed pulley and movable pulley device, trolley frame and steel rope etc., the hoist mechanism of this structure is owing to only adopt a cover actuating device, the canoe of steel rope is single relatively, in case motor et out of order, whole hoist mechanism is with regard to the state that paralyses fully, work speed and efficient are very low, for bridge-type and transfer crane, and large-tonnage hoisting crane particularly, the hoisting crane of said structure can not adapt to fully, near the edge that is eliminated.
The utility model content
For solving the problems of the technologies described above, it is fast to the utility model proposes a kind of work speed, the crane hoisting mechanism that efficient is high, the utility model can be widely used on bridge-type and the transfer crane, be specially adapted to the large-tonnage hoisting crane, adopt two cover actuating devices, even the motor et out of order of a cover actuating device wherein, do not influence the normal operation of whole hoist mechanism yet, make hoisting crane more safe and reliable.
The utility model is achieved by the following technical solution:
A kind of crane hoisting mechanism, comprise actuating device, actuating device comprises electrical motor, coupler, drg, reductor and reel, it is characterized in that: described actuating device is two covers, two cover driving unit shafts are symmetricly set on the trolley frame, pulley gear is at least two, and pulley gear is between the reel of two actuating devices.
Described pulley gear comprises fixed pulley and movable pulley device.
Equalizer pulley is combined in movable pulley device or the fixed pulley.
Described reel is a double crosslinking drum.
Advantage of the present utility model is:
Because the utility model adopts two cover actuating devices, the dolly height dimension is little, compact conformation, the oblique pull-up that can satisfy vertical and spool axis direction rises operating mode, therein one the cover actuating device the motor et out of order time, can be under the situation of this side brake brake application braking, by another set of actuating device half with the hoisting crane command speed, normal operation in half scope of specified lifting altitude, thereby the work speed and the work efficiency of hoisting crane have been improved greatly, make hoisting crane more safe and reliable, can be widely used in bridge-type and transfer crane, be specially adapted to the large-tonnage hoisting crane.
Description of drawings
Below in conjunction with specification drawings and specific embodiments the utility model is made further supplemental instruction, wherein:
Fig. 1 is a floor plan scheme drawing on the crane hoisting mechanism
Fig. 2 twines scheme drawing for the crane hoisting mechanism steel rope
The specific embodiment
The utility model discloses a kind of crane hoisting mechanism, comprise actuating device, actuating device comprises electrical motor 1, coupler 2, drg 3, reductor 4 and reel 5, it is characterized in that; Described actuating device is two covers, and two cover driving unit shafts are symmetricly set on the trolley frame 7, and pulley gear 6 is at least two, and pulley gear 6 is between the reel 5 of two actuating devices.Described pulley gear 6 comprises fixed pulley and movable pulley device.Equalizer pulley 9 is combined in movable pulley device or the fixed pulley.Described reel 5 is a double crosslinking drum 5.
As a better embodiment of the present utility model:
Shown in Figure 1, it comprises electrical motor 1, coupler 2, drg 3, reductor 4, reel 5, pulley gear 6, trolley frame 7 and steel rope 8, the whole lifting mechanism of hoisting crane is made up of two cover actuating devices, and every cover actuating device comprises electrical motor 1, coupler 2, drg 3, reductor 4 and reel 5; The reel 5 of two cover actuating devices adopts parallel axisymmetric arrangement arranged side by side, and pulley gear 6 comprises fixed pulley and movable pulley device, and fixed pulley is divided into two groups and is arranged between the two cover reels 5, and equalizer pulley 9 and fixed sliding combining are no longer ad hoc.
Adopt this technology,, the actuating device of its lifting mechanism is divided into two parts the large-tonnage weight-lifting equipment, can make parts such as motor, retarder transfer common model to by nonstandard big, thereby reduce making, the mounting process technical risk of equipment, and can reduce the height of equipment greatly, reduce investment.
Shown in Figure 2, two reels 5 all are left and right sides double crosslinking drums 5, but steel rope 8 windings of single layer, but also multiple wraps adopts two identical steel ropes 8.The canoe of steel rope 8 is: wherein steel cable 8 is begun by 1 end of reel 5M, arrives the I end of reel 5N through the pulley g → c → f → b → e → a in movable pulley device and the fixed pulley → d; Another root steel rope 8 is begun by 2 ends of reel 5M, arrives the II end of reel 5N through the pulley G → C → F → B → E → A in movable pulley device and the fixed pulley → D.
When steel rope 8 was the two ends installation at 1,2 ends of reel 5M, then steel rope 8 was installed for middle at I, the II of reel 5N end; 1 end of two winding drum 5 is consistent with the grooving rotation direction of I end, 2 ends and II end; When steel rope 8 was the two ends installation at reel 5M, its rope stretching at first entered the intermediate pulley of movable pulley device, and when steel rope 8 was middle the installation at reel 5N, its rope stretching at first entered the outside pulley of movable pulley device.
Adopt the utility model two cover actuating devices, and adopt this canoe, the oblique pull-up that can satisfy vertical and reel 5 axis directions rises operating mode; Simultaneously, if the motor et out of order of a cover actuating device, can be under the situation of this side brake 3 brake applications braking, by another set of actuating device with half of hoisting crane command speed, in half scope of specified lifting altitude normal operation, under the prerequisite of reserving total (pumping) head twice capacity steel rope 8 on the reel 5, can be in the total head scope normal operation.Improve the work speed and the work efficiency of hoisting crane greatly, make hoisting crane more safe and reliable.
Claims (4)
1, a kind of crane hoisting mechanism, comprise actuating device, actuating device comprises electrical motor (1), coupler (2), drg (3), reductor (4) and reel (5), it is characterized in that: described actuating device is two covers, two cover driving unit shafts are symmetricly set on the trolley frame (7), pulley gear (6) is at least two, and pulley gear (6) is positioned between the reel (5) of two actuating devices.
2, crane hoisting mechanism according to claim 1 is characterized in that: described pulley gear (6) comprises fixed pulley and movable pulley device.
3, crane hoisting mechanism according to claim 2 is characterized in that: equalizer pulley (9) is combined in movable pulley device or the fixed pulley.
4, crane hoisting mechanism according to claim 1 is characterized in that: described reel (5) is a double crosslinking drum (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202230008U CN201338920Y (en) | 2008-11-27 | 2008-11-27 | Lifting mechanism of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202230008U CN201338920Y (en) | 2008-11-27 | 2008-11-27 | Lifting mechanism of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201338920Y true CN201338920Y (en) | 2009-11-04 |
Family
ID=41234464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202230008U Expired - Lifetime CN201338920Y (en) | 2008-11-27 | 2008-11-27 | Lifting mechanism of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201338920Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556869A (en) * | 2011-12-30 | 2012-07-11 | 大连华锐重工集团股份有限公司 | Mechanism for lifting two rotary drums |
| CN103803434A (en) * | 2014-02-13 | 2014-05-21 | 山东大汉建设机械有限公司 | Linkage double hoisting mechanisms of tower crane and speed regulating method |
| CN104176668A (en) * | 2014-09-10 | 2014-12-03 | 山东丰汇设备技术有限公司 | Double-connection double-reel rope winding system |
| CN105174097A (en) * | 2015-08-25 | 2015-12-23 | 大连华锐重工集团股份有限公司 | Nuclear power plant crane carriage with double-rectangle steel wire rope lower guide rope winding system |
| CN107339487A (en) * | 2017-08-29 | 2017-11-10 | 中国水利水电夹江水工机械有限公司 | A kind of gate segmentation method for opening and closing and its headstock gear |
-
2008
- 2008-11-27 CN CNU2008202230008U patent/CN201338920Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556869A (en) * | 2011-12-30 | 2012-07-11 | 大连华锐重工集团股份有限公司 | Mechanism for lifting two rotary drums |
| CN103803434A (en) * | 2014-02-13 | 2014-05-21 | 山东大汉建设机械有限公司 | Linkage double hoisting mechanisms of tower crane and speed regulating method |
| CN103803434B (en) * | 2014-02-13 | 2016-01-20 | 山东大汉建设机械股份有限公司 | The two lifting mechanism of a kind of tower crane linkage and speed regulating method |
| CN104176668A (en) * | 2014-09-10 | 2014-12-03 | 山东丰汇设备技术有限公司 | Double-connection double-reel rope winding system |
| CN105174097A (en) * | 2015-08-25 | 2015-12-23 | 大连华锐重工集团股份有限公司 | Nuclear power plant crane carriage with double-rectangle steel wire rope lower guide rope winding system |
| CN105174097B (en) * | 2015-08-25 | 2017-06-16 | 大连华锐重工集团股份有限公司 | The nuclear power station trolley of conductor rope winding system under double square steel wire rope |
| CN107339487A (en) * | 2017-08-29 | 2017-11-10 | 中国水利水电夹江水工机械有限公司 | A kind of gate segmentation method for opening and closing and its headstock gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091104 |
|
| CX01 | Expiry of patent term |