CN103318751A - Lifting hook and crane - Google Patents
Lifting hook and crane Download PDFInfo
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- CN103318751A CN103318751A CN2013103043095A CN201310304309A CN103318751A CN 103318751 A CN103318751 A CN 103318751A CN 2013103043095 A CN2013103043095 A CN 2013103043095A CN 201310304309 A CN201310304309 A CN 201310304309A CN 103318751 A CN103318751 A CN 103318751A
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- hangers
- riser
- load hook
- positioning plate
- left riser
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Abstract
The invention discloses a lifting hook which comprises a left vertical plate (31) and a right vertical plate (32) and also comprises a hanger (37) connected between the left vertical plate (31) and the right vertical plate (32). The central section of the hanger (37) is provided with a wire rope interconnecting piece (371). When multiplying power of the lifting hook is odd number, a wire rope is connected on the wire rope interconnecting piece of the hanger. According to the above lifting hook, as the wire rope interconnecting piece is positioned at the central section of the hanger, that is to say, after the wire rope is connected with the hanger, active force applied on the lifting hook is applied at the central section of a poppethead such that stress of the poppethead tends to be balanced. Thus, a hook assembly is not easy to undergo side load stress so as to reduce hook assembly rupture probability caused by side load stress. The invention also discloses a crane including the above lifting hook.
Description
Technical field
The present invention relates to technical field of engineering machinery, relate in particular to a kind of load hook.The invention still further relates to a kind of hoisting crane with above-mentioned load hook.
Background technology
Load hook is one of important process part of hoisting crane, as shown in Figure 1, this load hook mainly comprises left riser 11, right riser 12, sheave shaft 13, lifting hook pulley group 14, crossbeam 15 and suspension hook 16, sheave shaft 13 and crossbeam 15 all are installed between left riser 11 and the right riser 12, lifting hook pulley group 14 is sheathed on the sheave shaft 13, and suspension hook 16 hang on the crossbeam 15.
Shown in Fig. 2-5, above-mentioned load hook often is suspended on the steel rope of lifting mechanism 21 by means of parts such as assembly pulleys, and it is rear fixing that steel rope is walked around arm head track adjusting wheel 22, principal arm assembly pulley 23 and lifting hook pulley group 14 successively.Different according to the multiplying power of load hook (ratio that hangs load carrying ability and lineoutofservice signal pull of load hook), steel rope will adopt different wire rope handling modes, so that steel rope finally is positioned the wire rope handling mode that different positions: Fig. 2 and Fig. 4 are respectively 7 times and 5 times correspondences, obviously when the multiplying power of load hook was the odd number multiplying power, steel rope finally was positioned on the left riser 11 or the steel rope knock hole 17 on the right riser 12 of load hook; Fig. 3 and Fig. 5 are respectively the wire rope handling mode of 6 times and 4 times correspondences, and obviously, when the multiplying power of load hook was the even number multiplying power, steel rope finally was positioned on the arm dividing plate 24.
Analysis chart 1-Fig. 5 can find out, when the multiplying power of load hook was the even number multiplying power, steel rope was fixed on the arm dividing plate 24, stressed the equating of sheave shaft 13 both sides of load hook, sheave shaft 13 can keep state of equilibrium, and lifting hook pulley group 14 is difficult for occuring side and carries stressed; And when the multiplying power of load hook is the odd number multiplying power, steel rope finally is fixed on the left riser 11 or right riser 12 of load hook, at this moment, and stressed there are differences of whole sheave shaft 13 both sides, cause sheave shaft 13 that deflection occurs, lifting hook pulley group 14 easy sides are carried stressed and are occurred breaking.
In sum, when the multiplying power that how to solve load hook was the odd number multiplying power, the problem of breaking easily appearred in the lifting hook pulley group, has become the technical barrier that those skilled in the art need to be resolved hurrily.
Summary of the invention
The purpose of this invention is to provide a kind of load hook, when the multiplying power of this load hook was the odd number multiplying power, the lifting hook pulley group was not easy to occur breaking.Another object of the present invention provides a kind of hoisting crane.
To achieve these goals, the invention provides a kind of load hook, comprise left riser and right riser, also comprise the hangers that is connected between described left riser and the described right riser, the middle part of described hangers has the steel rope connecting portion.
Preferably, an end of described hangers and described left riser are hinged, and the other end and described right riser are hinged, and the jointed shaft of described hangers and described left riser is perpendicular to described left riser, and the jointed shaft of described hangers and described right riser is perpendicular to described right riser.
Preferably, also comprise the positioning plate be used to the rotational angle that limits described hangers, described positioning plate is arranged in described left riser and the described right riser at least one.
Preferably, have spacing section of spacing section of forward rotation and backward rotation on the profile of described hangers end, have on the described positioning plate can with spacing section of described forward rotation and spacing section confined planes that connects of described backward rotation.
Preferably, described positioning plate is two, the end of described hangers has two spacing planes, and the two ends on described spacing plane form respectively spacing section of spacing section of described forward rotation and described backward rotation, and two described positioning plates act on mutually with two described spacing planes respectively.
Preferably, on described left riser and the described right riser described positioning plate is set all.
Preferably, the described positioning plate on the described left riser is positioned on the outside face of described left riser, and the described positioning plate on the described right riser is positioned on the outside face of described right riser, and the two ends of described hangers are outer described left riser and the described right riser of stretching in respectively.
Preferably, described confined planes is the plane, and described confined planes along continuous straight runs or vertical direction extension.
Preferably, described positioning plate is positioned at the below of the end of described hangers.
In technique scheme, load hook provided by the invention comprise left riser, right riser and be connected in left riser and right riser between hangers, the middle part of hangers has the steel rope connecting portion.When the multiplying power of this load hook is the odd number multiplying power, steel rope is connected on the steel rope connecting portion on the hangers gets final product.The content of introducing in the background technology, in the above-mentioned load hook, because the steel rope connecting portion is in the middle part of hangers, after also just being equivalent to steel rope and hangers be connected, it puts on the middle part that application force on the load hook acts on sheave shaft, so that the stressed of sheave shaft tends to balance, the difficult generation of lifting hook pulley group side is carried stressed, carries the stressed probability that occurs breaking thereby reduce the lifting hook pulley group because of side.
The present invention also provides a kind of hoisting crane, comprises lifting mechanism and the load hook that is connected with described lifting mechanism, and described load hook is above-mentioned each described load hook.Because this load hook has above-mentioned technique effect, the hoisting crane with this load hook also should have corresponding technique effect.
Description of drawings
Fig. 1 is the structural representation of traditional load hook;
Fig. 2 is the wire rope handling mode schematic diagram of the multiplying power of traditional load hook when being 7 times;
Fig. 3 is the wire rope handling mode schematic diagram of the multiplying power of traditional load hook when being 6 times;
Fig. 4 is the wire rope handling mode schematic diagram of the multiplying power of traditional load hook when being 5 times;
Fig. 5 is the wire rope handling mode schematic diagram of the multiplying power of traditional load hook when being 4 times;
The structural representation of the load hook that Fig. 6 provides for the embodiment of the invention;
Wire rope handling mode schematic diagram when the multiplying power of the load hook that Fig. 7 provides for the embodiment of the invention is 5 times;
Fig. 8 is that the A of Fig. 6 is to partial view;
The hangers that Fig. 9 provides for the embodiment of the invention is at the schematic diagram of two extreme position;
A kind of hangers that Figure 10 provides for the embodiment of the invention and the structural representation of positioning plate.
Among upper Fig. 1-5:
Among upper Fig. 6-10:
The specific embodiment
Core of the present invention provides a kind of load hook, and when the multiplying power of this load hook was the odd number multiplying power, the lifting hook pulley group was not easy to occur breaking.Another core of the present invention provides a kind of hoisting crane.
In order to make those skilled in the art understand better technical scheme provided by the invention, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 6, the load hook that provides of the embodiment of the invention comprises left riser 31, right riser 32, sheave shaft 33, lifting hook pulley group 34, crossbeam 35, suspension hook 36 and hangers 37; Sheave shaft 33 and crossbeam 35 all are installed between left riser 31 and the right riser 32, and lifting hook pulley group 34 is installed on the sheave shaft 33, and suspension hook 36 is installed on the crossbeam 35, and suspension hook 36 can be single hook or double hook; The middle part of hangers 37 has steel rope connecting portion 371, and it is connected between left riser 31 and the right riser 32, and particularly, the two ends of hangers 37 can be welded in respectively on left riser 31 and the right riser 32.Steel rope connecting portion 371 is positioned at the middle part of hangers 37, this middle part means the zone in the region near the mid-point on central axis certain limit of hangers 37, so that steel rope puts on the harmful effect reduce that the application force of load hook produces for the force balance between the parts in the load hook.Above-mentioned steel rope connecting portion 371 can be groove, also can be the hole, and the preferred hole of the embodiment of the invention is as steel rope connecting portion 371; The upper end profile of hangers 37 can be camber line, also can be straight line.
As shown in Figure 7, when the multiplying power of load hook is 5 times, walk around successively arm head track adjusting wheel 42, principal arm assembly pulley 43 and lifting hook pulley group 34 from the steel rope that lifting mechanism 41 stretches out, finally be connected in steel rope connecting portion 371 places on the hangers 37.Can see, the power that steel rope puts on sheave shaft 33 roughly acts on the middle part of sheave shaft 33, i.e. the midline position place of the distance between left riser 31 and the right riser 32.The content of introducing in the background technology, the hangers 37 that the embodiment of the invention provides so that the stressed of sheave shaft 33 tend to balance, sheave shaft 33 is difficult for run-off the straight, carry stressed so that lifting hook pulley group 34 is difficult for occuring side, thereby reduce lifting hook pulley group 34 and carry the stressed probability that occurs breaking because of side, at this moment, suspension hook 36 substantially vertically hangs down.
In such scheme, hangers 37 and left riser 31 and right riser 32 be fixedly the time, steel rope with will produce certain moment of flexure after hangers 37 is connected, this moment of flexure even ruptures so that hangers 37 easily deforms.In view of this, in the embodiment of the invention, an end and the left riser 31 of hangers 37 are hinged, and the other end and right riser 32 are hinged, and the jointed shaft of hangers 37 and left riser 31 is perpendicular to left riser 31, and the jointed shaft of hangers 37 and right riser 32 is perpendicular to right riser 32.After so arranging, when steel rope pulling hangers 37, hangers 37 will rotate with respect to left riser 31 and right riser 32, so that the direction of the application force that hangers 37 applies along steel rope is extended, effectively shorten the arm of force, reduce moment of flexure, impel hangers 37 to be difficult for occuring deformation, and then prolong the service life of hangers 37.
Further in the technical scheme, the load hook that the embodiment of the invention provides also comprises the positioning plate 38 for the rotational angle that limits hangers 37, and this positioning plate 38 is arranged in left riser 31 and the right riser 32 at least one.In this scheme, the end of hangers 37 can arrange lever, and according to the spacing requirement of hangers 37, above-mentioned lever can be one, also can be two or more; And positioning plate 38 can be one, two or more, as long as when hangers 37 rotates, the lever on it can with positioning plate 38 butts, get final product to stop that hangers 37 is rotated further.Limit the rotational angle of hangers 37 by positioning plate 38, can prevent effectively that hangers 37 is subject to excessively rotating the situation that causes lifting hook pulley group 34 to be damaged behind the External Force Acting.In most of the cases, the longitudinal plane of symmetry of hangers 37 is about 60 ° at the formed angle in the two ends of its rotational travel.During implementation, above-mentioned positioning plate 38 can be arranged on the inside face of left riser 31 or right riser 32, and this inside face refers on left riser 31 or the right riser 32 surface relative with lifting hook pulley group 34; When being set, positioning plate 38 need guarantee that positioning plate 38 can not interfere with lifting hook pulley group 34.
In the such scheme, hangers 37 needs to realize spacing by the booster action of lever, in order to alleviate the structure complexity of hangers 37, have spacing section of spacing section of forward rotation and backward rotation on the profile of hangers 37 ends that the embodiment of the invention provides, then have on the positioning plate 38 can with spacing section of forward rotation and spacing section confined planes that connects of backward rotation.The spacing section end that can pass through cutting hangers 37 of spacing section of this forward rotation and backward rotation forms, and it can be arc section.When hangers 37 rotates, spacing section of spacing section of forward rotation on it or backward rotation contact with positioning plate 38 gradually, until the radius of gyration of spacing section of spacing section of forward rotation or backward rotation greater than between its center of turn and the positioning plate 38 apart from the time, spacing section of spacing section of forward rotation or backward rotation can't be rotated further, thereby reach spacing purpose.This scheme namely realizes spacing by the improvement to hangers 37 self structure, effectively simplify the structure of load hook.
Above-mentioned confined planes can be curved surface, and in embodiment further, confined planes is the plane, and this confined planes along continuous straight runs or vertical direction extend, shown in Fig. 8-10.Confined planes is set to the plane, not only is conducive to the spacing fast of hangers 37, also helps the processing of positioning plate 28.Certainly, under other operating modes, arbitrary position that the bearing of trend of above-mentioned confined planes also can be between horizontal direction and vertical direction, this paper does not limit this.
For enough spacing power is provided, above-mentioned positioning plate 38 can be set to two, and the end of hangers 37 has two spacing planes, spacing section of spacing section of the two ends formation forward rotation on this spacing plane and backward rotation, two positioning plates 38 act on mutually with two spacing planes respectively, as shown in figure 10.Obviously, in spacing process, apply resistance by two positioning plates 38 to hangers 37, simultaneously bear simultaneously this resistance by spacing section of spacing section of two forward rotation and two backward rotation, so that hangers 37 is spacing more reliable, fast, and so that prolong to some extent the service life of hangers 37 and positioning plate 38.Certainly, under different operating modes, the spacing plane on the hangers 37 and the number of positioning plate 38 also can be more than two, and concrete number is not subjected to the restriction of this paper.
As previously mentioned, on in left riser 31 and the right riser 32 at least one positioning plate 38 is set, therefore, according to the actual requirements, can only at left riser 31 positioning plate 38 be set, also can only at right riser 32 positioning plate 38 be set, in view of the load of hoisting crane usually larger, the embodiment of the invention all arranges positioning plate 38 on left riser 31 and right riser 32, simultaneously hangers 37 is applied resistance with this, so that hangers 37 can stop operating reliably, improve to a greater degree the serviceability of hangers 37 under larger load.
On the basis of such scheme, the positioning plate 38 on the left riser 31 is positioned on the outside face of left riser 31, and the positioning plate 38 on the right riser 32 is positioned on the outside face of right riser, and the two ends of hangers 37 are outer left riser 31 and the right riser 32 of stretching in respectively.The outside face of left riser 31 refers to the surface of away from hook assembly pulley 34 on the left riser 31, also is like this in the right riser 32.This scheme is arranged at positioning plate 38 outside face of left riser 31 and right riser 32, and lip-deep parts are less in addition, the space is larger, therefore positioning plate 38 is difficult for interfering with other parts, so that the parameters such as the size of positioning plate 38, shape are comparatively flexible, the installation of positioning plate 38 is also comparatively convenient.
In specific embodiments, positioning plate 38 can be positioned at the top of hangers 37, and this moment, the upper end of hangers 37 acted on mutually with positioning plate 38.Preferably, the embodiment of the invention is arranged at positioning plate 38 below of the end of hangers 37.The reason that so arranges is, hangers 37 is usually located at the upper end of left riser 31 and right riser 32, the space that causes being positioned on left riser 31 and the right riser 32 hangers 37 tops is less, the space of hangers 37 belows is then relatively large, this also facilitates positioning plate 38 is set, even can in a big way, increase the size of positioning plate 38, improve the intensity of positioning plate 38 with this.
The present invention also provides a kind of hoisting crane, comprises lifting mechanism and the load hook that is connected with this lifting mechanism, and this load hook is the described load hook of above-mentioned arbitrary scheme.Because this load hook has above-mentioned technique effect, the hoisting crane with this load hook also should have corresponding technique effect, repeats no more herein.
Above load hook provided by the present invention and hoisting crane are described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. load hook, comprise left riser (31) and right riser (32), it is characterized in that, also comprise the hangers (37) that is connected between described left riser (31) and the described right riser (32), the middle part of described hangers (37) has steel rope connecting portion (371).
2. load hook according to claim 1, it is characterized in that, one end of described hangers (37) and described left riser (31) are hinged, the other end and described right riser (32) are hinged, and the jointed shaft of described hangers (37) and described left riser (31) is perpendicular to described left riser (31), and the jointed shaft of described hangers (37) and described right riser (32) is perpendicular to described right riser (32).
3. load hook according to claim 2, it is characterized in that, also comprise the positioning plate (38) be used to the rotational angle that limits described hangers (37), described positioning plate (38) is arranged in described left riser (31) and the described right riser (32) at least one.
4. load hook according to claim 3, it is characterized in that, have spacing section of spacing section of forward rotation and backward rotation on the profile of described hangers (37) end, have on the described positioning plate (38) can with spacing section of described forward rotation and spacing section confined planes that connects of described backward rotation.
5. load hook according to claim 4, it is characterized in that, described positioning plate (38) is two, the end of described hangers (37) has two spacing planes, the two ends on described spacing plane form respectively spacing section of spacing section of described forward rotation and described backward rotation, and two described positioning plates (38) act on mutually with two described spacing planes respectively.
6. load hook according to claim 4 is characterized in that, on described left riser (31) and the described right riser (32) described positioning plate (38) is set all.
7. load hook according to claim 6, it is characterized in that, described positioning plate (38) on the described left riser (31) is positioned on the outside face of described left riser (31), described positioning plate (38) on the described right riser (32) is positioned on the outside face of described right riser (32), and the two ends of described hangers (37) are outer described left riser (31) and the described right riser (32) of stretching in respectively.
8. each described load hook is characterized in that according to claim 4-7, and described confined planes is the plane, and described confined planes along continuous straight runs or vertical direction extension.
9. each described load hook is characterized in that according to claim 3-7, and described positioning plate (38) is positioned at the below of the end of described hangers (37).
10. a hoisting crane comprises lifting mechanism and the load hook that is connected with described lifting mechanism, it is characterized in that, described load hook is such as the described load hook of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310304309.5A CN103318751B (en) | 2013-07-18 | 2013-07-18 | Lifting hook and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310304309.5A CN103318751B (en) | 2013-07-18 | 2013-07-18 | Lifting hook and crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103318751A true CN103318751A (en) | 2013-09-25 |
| CN103318751B CN103318751B (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310304309.5A Active CN103318751B (en) | 2013-07-18 | 2013-07-18 | Lifting hook and crane |
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| Country | Link |
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| CN (1) | CN103318751B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108750978A (en) * | 2018-08-02 | 2018-11-06 | 芜湖英特杰智能科技有限公司 | A kind of steel wire rope for tower crane anti-drop device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10338470A (en) * | 1997-06-05 | 1998-12-22 | Sumitomo Constr Mach Co Ltd | Rope hoisting and lowering device of crane |
| JP2000118952A (en) * | 1998-10-06 | 2000-04-25 | Sumitomo Constr Mach Co Ltd | Crane device |
| JP2003327384A (en) * | 2002-05-13 | 2003-11-19 | Sumitomo Heavy Industries Construction Crane Co Ltd | Closing hook device |
| CN201634357U (en) * | 2010-01-22 | 2010-11-17 | 惠生（南通）重工有限公司 | Main lifting winding system |
| CN102530757A (en) * | 2012-03-05 | 2012-07-04 | 徐州重型机械有限公司 | Wire-rope/pulley component and crane |
| CN202625617U (en) * | 2012-06-19 | 2012-12-26 | 宁波雄狮机械制造有限公司 | Crampon with series pulley blocks |
| CN203486749U (en) * | 2013-07-18 | 2014-03-19 | 徐州重型机械有限公司 | Crane hook and crane |
-
2013
- 2013-07-18 CN CN201310304309.5A patent/CN103318751B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10338470A (en) * | 1997-06-05 | 1998-12-22 | Sumitomo Constr Mach Co Ltd | Rope hoisting and lowering device of crane |
| JP2000118952A (en) * | 1998-10-06 | 2000-04-25 | Sumitomo Constr Mach Co Ltd | Crane device |
| JP2003327384A (en) * | 2002-05-13 | 2003-11-19 | Sumitomo Heavy Industries Construction Crane Co Ltd | Closing hook device |
| CN201634357U (en) * | 2010-01-22 | 2010-11-17 | 惠生（南通）重工有限公司 | Main lifting winding system |
| CN102530757A (en) * | 2012-03-05 | 2012-07-04 | 徐州重型机械有限公司 | Wire-rope/pulley component and crane |
| CN202625617U (en) * | 2012-06-19 | 2012-12-26 | 宁波雄狮机械制造有限公司 | Crampon with series pulley blocks |
| CN203486749U (en) * | 2013-07-18 | 2014-03-19 | 徐州重型机械有限公司 | Crane hook and crane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108750978A (en) * | 2018-08-02 | 2018-11-06 | 芜湖英特杰智能科技有限公司 | A kind of steel wire rope for tower crane anti-drop device |
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| Publication number | Publication date |
|---|---|
| CN103318751B (en) | 2014-12-10 |
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