CN103407921A - Lifting mechanism of crane - Google Patents
Lifting mechanism of crane Download PDFInfo
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- CN103407921A CN103407921A CN2013104003589A CN201310400358A CN103407921A CN 103407921 A CN103407921 A CN 103407921A CN 2013104003589 A CN2013104003589 A CN 2013104003589A CN 201310400358 A CN201310400358 A CN 201310400358A CN 103407921 A CN103407921 A CN 103407921A
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Abstract
The invention provides a lifting mechanism of a crane. The lifting mechanism comprises a drive mechanism, a dual-link rolling drum, a steel rope device, a horizontal guide mechanism, a vertical guide mechanism, a balance mechanism and a lifting mechanism; the steel rope device comprises a first steel rope, a second steel rope, a third steel rope and a fourth steel rope; the horizontal guide mechanism comprises at least four horizontal guide pulleys which are arranged symmetrically corresponding to the centerline of the double-link rolling drum; the vertical guide mechanism comprises four vertical guide pulleys; the balance mechanism comprises a large balance arm, two small balance arms and a connecting rod, wherein the small balance arms are arranged symmetrically at the two ends of the large balance arm in a manner of corresponding to the large balance arm; each steel rope extends downwards in the vertical direction after bypassing the corresponding horizontal guide pulley and vertical guide pulley and is then fixedly connected with the lifting mechanism, and when uneven forces are applied on the steel ropes during rolling of the double-link rolling drum, the balance mechanism can swing, and when the forces on the steel ropes are balanced, the balance mechanism stops swinging.
Description
Technical field
The present invention relates to hoisting crane, particularly the lifting mechanism of hoisting crane.
Background technology
Some hoisting crane, in hoisting process, requires proof load necessary vertical lifting in the whole process that hoists.Most hoisting cranes are all to using suspension hook as load-engaging device, and suspension hook is all to use movable pulley device as effort-saving mechanism at present.Particularly for duty ratio larger hang thing, the coiling multiplying power of steel rope is improved.But this means that steel rope wears total hop count of walking around the assembly pulley both sides and increase, thereby cause interfering between steel rope.In order to guarantee not interfere between steel rope, the lower rope angle that a large pulley is adjusted steel rope all can be set, but so just be difficult to the lifting that proof load can be vertical in the process of hoisting.
Summary of the invention
The present invention will hang at the lifting mechanism of hoisting crane while loading with, and makes load keep vertical stable lifting.
For solving the problems of the technologies described above, the invention provides a kind of crane hoisting mechanism and comprise: the symmetrically arranged horizontally-guided of driver train, a duplex reel, wire rope device, two groups mechanism, vertically-guided mechanism, an equalizing gear and a lifting mechanism; This driver train, for driving two reel synchronous rotaries of symmetrically arranged double crosslinking drum, is reeled on this double crosslinking drum thereby drive steel rope; Wire rope device comprises first to fourth steel rope, 2 steel ropes of reeling respectively on each reel of double crosslinking drum; This horizontally-guided mechanism comprises at least four horizontally-guided pulleys altogether, and its line of centers corresponding to this double crosslinking drum is symmetrical arranged; This vertically-guided mechanism comprises 4 vertically-guided pulleys altogether; This equalizing gear comprises a large equilibrium arm, reach the little equilibrium arm and the connecting rod that with respect to this large equilibrium arm, are symmetricly set on large equilibrium arm two ends, each little equilibrium arm and two horizontally-guided pulleys are hinged, this large equilibrium arm is hinged by connecting rod and little equilibrium arm, and this large equilibrium arm is articulated on the pedestal of this crane hoisting mechanism; Wherein, after each steel rope is walked around corresponding horizontally-guided pulley and vertically-guided pulley, extend downward vertically and fix with this lifting mechanism, while in this double crosslinking drum winding process, the steel rope discontinuity occurring, this equalizing gear swings, until the steel rope stress balance stops swinging.
In sum, the present invention guides four steel ropes by horizontally-guided mechanism and vertically-guided mechanism, and by equalizing gear, the steel rope of discontinuity is regulated, and makes in lifting process, and all steel ropes reach balance automatically.And four steel ropes carry out the winding of single multiplying power, between steel rope, can not interfere, thereby realize laborsaving, stable lifting.
The accompanying drawing explanation
Fig. 1 is the birds-eye view of crane hoisting mechanism of the present invention.
Fig. 2 is the birds-eye view of the simplification of lifting mechanism of the present invention.
Fig. 3 is the cutaway view along A-A line in Fig. 1.
Fig. 4 be in Fig. 1 B to schematic diagram.
Fig. 5 be in Fig. 1 B to rough schematic view.
Fig. 6 is the cutaway view of C-C line in Fig. 1
Fig. 7 is the birds-eye view of the suspender of crane hoisting mechanism of the present invention.
Fig. 8 is the cutaway view along B-B line in Fig. 7.
Fig. 9 is that the differ schematic diagram of situation of degree of tightness appears in steel rope.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
Lifting mechanism of the present invention adopts four steel ropes to carry out the winding of single multiplying power, and to realize laborsaving, stable lifting, its concrete structure is as follows.
As shown in Figure 1, crane hoisting mechanism comprises: driver train 1, double crosslinking drum 2, wire rope device 3, two groups of symmetrically arranged horizontally-guided mechanisms 4, vertically-guided mechanism 5, equalizing gear 6 and lifting mechanisms 7.
The present embodiment comprises two groups of driver trains, and each group driver train 1 comprises that electrical motor 11, drg 12 and 13, two groups of driver trains of retarder 1 share a slow-speed shaft coupler 14, and connects left and right two retarder 13 output shafts by slow-speed shaft coupler 14.
Two groups of symmetrically arranged horizontally-guided mechanisms 4 comprise 8 horizontally-guided pulleys altogether, i.e. the first to the 8th horizontally-guided pulley 41-48.First, second, the 5th, the 6th horizontally-guided pulley and the 3rd, the 4th, the 7th, the 8th horizontally-guided pulley be with respect to the Central Symmetry setting of crane hoisting mechanism.Therefore, below to first, second, the 5th, the structure of the 6th horizontally-guided pulley is elaborated.
With reference to Fig. 1,3,4, first, second horizontally-guided pulley 41,42 is the placement that lies low, and it is connected on pedestal 81 by permanent seat 82, and pedestal 81 can be the dolly of hoisting crane.Five, the 6th horizontally-guided pulley 45,46 is vertically to place.
Vertically-guided mechanism 5 comprises 4 vertically-guided pulleys, i.e. first to fourth vertically-guided pulley 51-54.Vertically-guided mechanism 5 is connected on pedestal 81 by permanent seat 83, and as shown in Figure 3, vertically-guided mechanism 5 between symmetrical horizontally-guided mechanism 4, its corresponding lifting mechanism 7 in below.For vertically-guided mechanism 5 clearly is shown, in Fig. 3, only schematically show a vertically-guided mechanism 5.
Equalizing gear 6 comprises little equilibrium arm 61, connecting rod 62 and large equilibrium arm 63.The two ends of large equilibrium arm 63 respectively are provided with one group little equilibrium arm 61 and connecting rod 62.As shown in Figure 1, little equilibrium arm 61 and the connecting rod 62 of large equilibrium arm 63 left ends are walked around four horizontally-guided pulleys on the left side for adjusting, namely first, second, the balance of the steel rope of the 5th, the 6th horizontally-guided pulley 41,42,45,46.The little equilibrium arm 61 of large equilibrium arm 63 right-hand members and connecting rod 62 are walked around four horizontally-guided pulleys on the right, the i.e. balance of the steel rope of the 3rd, the 4th, the 7th, the 8th horizontally-guided pulley 43,44,47,47 for adjusting.The two groups little equilibrium arms 61 in left and right are identical with the structure of connecting rod 62, below only with left side, describe.Little equilibrium arm 61 can be articulated between the 5th, the 6th horizontally-guided pulley 45,46.Large equilibrium arm 63 is articulated in little equilibrium arm 61 by connecting rod 62.In the present embodiment, it is hinged with it that the end of large equilibrium arm 63 respectively is provided with the perforation that the first rotating shaft 631, the first rotating shafts 631 pass on connecting rod 62.Large equilibrium arm 63 is articulated in pedestal 81.In the present embodiment, the middle part of large equilibrium arm 63 is provided with the second rotating shaft 632, the second rotating shafts 632 and is fixed on the bearing 84 of pedestal 81, makes the large equilibrium arm 63 can be with respect to pedestal 81 pivotables.In the present embodiment, when all steel ropes are in the stress balance state, little equilibrium arm 61 and large equilibrium arm 63 approximate horizontal, connecting rod 62 is vertically connected between the two.
Below, the winding mode of steel rope is described.
Wire rope device 3 comprises four steel ropes altogether.As shown in Figure 2, first, second steel rope 31,32 of winding steel wire rope device 3 from outside to inside on the reel of left side, the 3rd of winding steel wire rope device 3 the, the 4th steel rope 33,34 from outside to inside on the reel of right side.One end of the first steel rope 31 is wrapped on the reel of left side, the other end is successively walked around along the direction of arrow on the 5th, first horizontally-guided pulley 45,41, if in Fig. 5, schematically illustrated, make the direction of the first steel rope 31 by shown in Figure 2 vertically changing into laterally, finally laterally moved on the first vertically-guided pulley 51, walk around from it, if in Fig. 3, schematically illustrated, making the direction of the first steel rope 31 is vertical direction by lateral transition shown in Figure 3, and finally this end is fixed on the lifting mechanism 7 of below.
Second, third, canoe and first steel rope 31 of the 4th steel rope 32,33,34 be similar, below they are simply described.
One end of the second steel rope 32 is wrapped on the reel of left side, and the other end is successively walked around the 6th horizontally-guided pulley 46, the second horizontally-guided pulley 42 and the second vertically-guided pulley 52 along the direction of arrow, finally on the lifting mechanism 7 below vertical sagging being fixed in of this end.In the present embodiment, as shown in Figure 2, the first, the 4th vertically-guided pulley 51,54 coaxially arranges, and the lower rope point A1 of the first steel rope 31 is on the right of the first vertically-guided pulley 51, and the lower rope point A2 of the second steel rope 32 is on the right of the second vertically-guided pulley 52.
One end of the 3rd steel rope 33 is wrapped on the reel of right side, the other end is successively walked around the 8th horizontally-guided pulley 48, the 3rd horizontally-guided pulley 43, is reached the 4th vertically-guided pulley 54 along the direction of arrow, finally on the lifting mechanism 7 below vertical sagging being fixed in of this end.
One end of the 4th steel rope 34 is wrapped on the reel of right side, and the other end is successively walked around the 7th horizontally-guided pulley 47, the 4th horizontally-guided pulley 44 and the 3rd vertically-guided pulley 53 along the direction of arrow, finally on the lifting mechanism 7 below vertical sagging being fixed in of this end.
As shown in Figure 7, the first steel rope 31 to the lower rope point A1-A4 of the 4th steel rope 34 lay respectively in figure first, the 3rd, second, in fourth quadrant.
Load weight is born by 4 steel ropes, because of various manufactures and installation error, may cause 4 stressed differences of steel rope, and then it is crooked to cause suspender 71 to have certain level, affects the lifting of load.But equalizing gear 6 head it offs of the present invention.
As shown in Figure 9, it shows first, second steel rope 31,32 and the situation that degree of tightness differs occurs, and wherein, the outgoing line part of the first steel rope 31 is longer than the second steel rope 32, and little equilibrium arm 61 is swung by initial level attitude, presents position shown in Figure 9.The length that arrives the 5th horizontally-guided pulley 45 from reel 2 due to the first steel rope 31 is greater than the length of the second steel rope 32 from reel 2 arrival the 6th horizontally-guided pulleys 46, make the stressed larger of the first steel rope 31, the second steel rope 32 is stressed less, therefore the first steel rope 31 is large for the pressure of reel 2, and the friction force between reel 2 is large, larger friction force can not produce slip while making the first steel rope 31 reel on reel 2, namely, with the coiling that reel 2 is close to fully, the coiling amount is larger; Opposite, because the friction force between the second steel rope 32 and reel 2 is less, therefore, it not is close to reel 2, and the coiling amount is less.Along with the such winding method of first, second steel rope 31,32, the outgoing line part length of final first, second steel rope 31,32 reaches consistent, simultaneously, little equilibrium arm 61 is rocked to initial level attitude by previous obliquity, the stressed balance that reaches of first, second steel rope 31,32.
Similarly, when the two groups of wires in left and right stressed different, by the swing of large equilibrium arm 63 with respect to connecting rod 62, regulate reel 2 stressed of both sides, finally make four steel ropes stressed consistent, reach balance.
In sum, the present invention guides four steel ropes by horizontally-guided mechanism and vertically-guided mechanism, and by equalizing gear, the steel rope of discontinuity is regulated, and makes in lifting process, and all steel ropes reach balance automatically.And four steel ropes carry out the winding of single multiplying power, between steel rope, can not interfere, thereby realize laborsaving, stable lifting.
It should be noted that: the present invention take horizontally-guided mechanism to comprise that eight horizontally-guided pulleys describe as example, in fact, can omit first to fourth horizontally-guided pulley 41-44, namely, for example make the first steel rope after the 5th horizontally-guided pulley 45, directly move on the first vertically-guided pulley 51.Certainly, can according to circumstances increase the quantity of horizontally-guided pulley.
It should be noted that in addition, each concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (6)
1. a crane hoisting mechanism comprises: the symmetrically arranged horizontally-guided of driver train, a duplex reel, wire rope device, two groups mechanism, vertically-guided mechanism, an equalizing gear and a lifting mechanism; This driver train, for driving two reel synchronous rotaries of symmetrically arranged double crosslinking drum, is reeled on this double crosslinking drum thereby drive steel rope; Wire rope device comprises first to fourth steel rope, 2 steel ropes of reeling respectively on each reel of double crosslinking drum; This horizontally-guided mechanism comprises at least four horizontally-guided pulleys altogether, and its line of centers corresponding to this double crosslinking drum is symmetrical arranged; This vertically-guided mechanism comprises 4 vertically-guided pulleys altogether; This equalizing gear comprises a large equilibrium arm, reach the little equilibrium arm and the connecting rod that with respect to this large equilibrium arm, are symmetricly set on large equilibrium arm two ends, each little equilibrium arm and two horizontally-guided pulleys are hinged, this large equilibrium arm is hinged by connecting rod and little equilibrium arm, and this large equilibrium arm is articulated on the pedestal of this crane hoisting mechanism; Wherein, after each steel rope is walked around corresponding horizontally-guided pulley and vertically-guided pulley, extend downward vertically and fix with this lifting mechanism, while in this double crosslinking drum winding process, the steel rope discontinuity occurring, this equalizing gear swings, until the steel rope stress balance stops swinging.
2. crane hoisting mechanism as claimed in claim 1, wherein, one group in these two groups of horizontally-guided mechanisms comprises first, second, the 5th, the 6th horizontally-guided pulley, another group in these two groups of horizontally-guided mechanisms comprises the 3rd, the 4th, the 7th, the 8th horizontally-guided pulley, these two groups of horizontally-guided mechanisms are symmetrical arranged with respect to the line of centers of this double crosslinking drum, this is first years old, second, the 3rd, the 4th horizontally-guided pulley is the placement that lies low, it is connected on this pedestal, the 5th, the 6th, the 7th, the 8th horizontally-guided pulley is vertically to place, and be articulated in the two ends of little equilibrium arm.
3. crane hoisting mechanism as claimed in claim 2, wherein, this vertically-guided mechanism comprises first-Di, tetra-vertically-guided pulleys, this vertically-guided mechanism is connected in this pedestal, this vertically-guided mechanism is between symmetrical horizontally-guided mechanism, and the top that is positioned at this lifting mechanism aligned.
4. crane hoisting mechanism as claimed in claim 3, wherein, one end of this first steel rope is wrapped on one of them reel, the other end is successively walked around the 5th horizontally-guided pulley, the first horizontally-guided pulley and the first vertically-guided pulley, finally vertical sagging being fixed on this lifting mechanism of this end; One end of this second steel rope is wrapped on one of them reel, and the other end is successively walked around the 6th horizontally-guided pulley, the second horizontally-guided pulley and the second vertically-guided pulley, finally vertical sagging being fixed on this lifting mechanism of this end; One end of the 3rd steel rope is wrapped on another reel, and the other end is successively walked around the 3rd horizontally-guided pulley, the 8th horizontally-guided pulley and the 4th vertically-guided pulley, finally vertical sagging being fixed on this lifting mechanism of this end; One end of the 4th steel rope is wrapped on another reel, and the other end is successively walked around the 7th horizontally-guided pulley, the 4th horizontally-guided pulley and the 3rd vertically-guided pulley, finally vertical sagging being fixed on this lifting mechanism of this end.
5. crane hoisting mechanism as claimed in claim 4, wherein, when all steel ropes were in the stress balance state, this little equilibrium arm and large equilibrium arm were in level, and this connecting rod is vertically connected between this little equilibrium arm and large equilibrium arm.
6. crane hoisting mechanism as claimed in claim 4, wherein, this lifting mechanism comprises suspender and hangs fork, the center of this suspender has fixed orifice, and fixed orifice is passed in this upper end of hanging fork, and is fixed by nut, one bearing is between nut and suspender, and the inner ring of this bearing is fixed in this suspender, this nut is fixed in outer ring, and making this hang fork can rotate on this suspender.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310400358.9A CN103407921B (en) | 2013-09-05 | 2013-09-05 | Lifting mechanism of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310400358.9A CN103407921B (en) | 2013-09-05 | 2013-09-05 | Lifting mechanism of crane |
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| Publication Number | Publication Date |
|---|---|
| CN103407921A true CN103407921A (en) | 2013-11-27 |
| CN103407921B CN103407921B (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310400358.9A Active CN103407921B (en) | 2013-09-05 | 2013-09-05 | Lifting mechanism of crane |
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| CN (1) | CN103407921B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109276039A (en) * | 2018-10-16 | 2019-01-29 | 广东顶固集创家居股份有限公司 | Lifting cabinet and its four line locking draw off gears |
| CN109987535A (en) * | 2019-05-13 | 2019-07-09 | 河南剑宏科技有限公司 | It is a kind of can rope closing etc. power draw (tensioning) traction rope traction device |
| CN110407120A (en) * | 2019-08-05 | 2019-11-05 | 希美克(广州)实业有限公司 | Lifting cabinet and its wirerope steering system, wirerope transfer |
| CN118405604A (en) * | 2024-06-28 | 2024-07-30 | 河南科技学院 | Crane sling balancing structure |
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| DE1916644A1 (en) * | 1969-04-01 | 1970-11-05 | Krupp Gmbh | Safety system for casting ladle crane - has transverse and compensation levers for the rope system |
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Family Cites Families (1)
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| DE1916644U (en) * | 1964-11-18 | 1965-05-26 | Eckard Bruns | GLIDER WITH A COMBUSTION ENGINE. |
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| DE1916644A1 (en) * | 1969-04-01 | 1970-11-05 | Krupp Gmbh | Safety system for casting ladle crane - has transverse and compensation levers for the rope system |
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| CN102092649A (en) * | 2011-01-21 | 2011-06-15 | 太原重工股份有限公司 | Lifting mechanism for electromagnetic disc crane |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109276039A (en) * | 2018-10-16 | 2019-01-29 | 广东顶固集创家居股份有限公司 | Lifting cabinet and its four line locking draw off gears |
| CN109276039B (en) * | 2018-10-16 | 2024-05-28 | 广东顶固集创家居股份有限公司 | Lifting cabinet and four-wire synchronous winding and unwinding device thereof |
| CN109987535A (en) * | 2019-05-13 | 2019-07-09 | 河南剑宏科技有限公司 | It is a kind of can rope closing etc. power draw (tensioning) traction rope traction device |
| CN109987535B (en) * | 2019-05-13 | 2023-08-11 | 河南剑宏科技有限公司 | Constant force traction (tensioning) traction rope traction device capable of winding rope |
| CN110407120A (en) * | 2019-08-05 | 2019-11-05 | 希美克(广州)实业有限公司 | Lifting cabinet and its wirerope steering system, wirerope transfer |
| CN118405604A (en) * | 2024-06-28 | 2024-07-30 | 河南科技学院 | Crane sling balancing structure |
| CN118405604B (en) * | 2024-06-28 | 2024-08-30 | 河南科技学院 | Crane sling balancing structure |
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| Publication number | Publication date |
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| CN103407921B (en) | 2015-06-24 |
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