CN202936094U - Crane and hook assembly thereof - Google Patents
Crane and hook assembly thereof Download PDFInfo
- Publication number
- CN202936094U CN202936094U CN 201220654961 CN201220654961U CN202936094U CN 202936094 U CN202936094 U CN 202936094U CN 201220654961 CN201220654961 CN 201220654961 CN 201220654961 U CN201220654961 U CN 201220654961U CN 202936094 U CN202936094 U CN 202936094U
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- rope
- gear
- pulley
- cargo hook
- utility
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Abstract
The utility model discloses a hook assembly. The hook assembly comprises hook side plates which are symmetrically distributed and a pulley which is arranged between the hook side plates; the hook assembly further comprises at least two rope stoppers, wherein slidable and rotatable sleeves are sleeved on the rope stoppers; and the rope stoppers are symmetrically distributed on the left and right sides of the pulley so as to prevent a steel wire rope which is wound on the pulley from skipping. According to the hook assembly provided by the utility model, the slidable and rotatable sleeves are sleeved on the rope stoppers, so that the steel wire rope is directly contacted with the sleeves and in rolling contact with the sleeves, thus, the sliding friction of the steel wire rope and the rope stoppers of the prior art is changed into the rolling friction of the steel wire rope and the rope stoppers, the abrasion of the steel wire rope is reduced, and the service life of the steel wire rope is prolonged. In addition, the utility model further provides a crane which comprising the hook assembly.
Description
Technical field
The utility model relates to the hoisting crane technical field, particularly relates to a kind of cargo hook gear of hoisting crane.In addition, the utility model also relates to a kind of hoisting crane that comprises above-mentioned cargo hook gear.
Background technology
Cargo hook gear is load-engaging device most widely used on hoisting crane.The frequency of utilization of cargo hook gear is high, and common cargo hook gear comprises the rope gear, is used for preventing the steel rope rope skipping.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of typical cargo hook gear in prior art.
As shown in Figure 1, described cargo hook gear comprises the suspension hook side plate 101 that is arranged symmetrically with, the pulley 102 that connects two suspension hook side plates 101 and a plurality of rope gear 103; Described rope gear 103 is arranged between two suspension hook side plates 101 by bolt 104, and described rope gear 103 is the quadrntnt arc, left and rightly is staggered successively; Steel rope 105 is wrapped on pulley 102, due to the setting of rope gear 103, can prevent steel rope 105 rope skippings.
It is pointed out that above-mentioned left and right is to be arranged in figure and parts positions each other defines with parts in Fig. 1, just for sake of clarity and convenient.
Although above-mentioned cargo hook gear can prevent steel rope 105 rope skippings effectively, but owing to being moving contact between steel rope 105 and rope gear 103, in use, inevitably contact friction between steel rope 105 and rope gear 103, long-term use certainly will cause steel rope 105 severe wears, reduces the service life of steel rope 105.In addition, in this kind structure, rope gear 103 numbers are more, are unfavorable for installing/dismounting.
For this reason, the another kind of mode of taking in prior art is: rope processing device is set in cargo hook gear substitutes the rope gear, play the effect that prevents steel rope rope skipping and wearing and tearing.
Please refer to Fig. 2, Fig. 2 is the structural representation of a kind of rope processing device in prior art.
As shown in Figure 2, rope processing device comprises pressure rope roller 201, bolster 202 and bearing 203; Press rope roller 201 to be sleeved on bolster 202 by bearing 203, the two ends of bolster 202 are connected with the main structure of rope processing device.Rope processing device is applied to rope processing device in the principle of cargo hook gear and prior art, and to be applied to the principle of winch similar, repeats no more here.Although the wearing and tearing that rope processing device can effectively prevent the rope skipping of steel rope and reduce steel rope are set on cargo hook gear, but the manufacturing cost of rope processing device is higher, and in use bolster 202 will bear larger radial weight, easy to wear, and inconvenience arranges rope processing device on the cargo hook gear of minor crane.
In view of this, how to design a kind of cargo hook gear, this cargo hook gear is simple in structure, not only can prevent the steel rope rope skipping, can also effectively reduce the wearing and tearing of steel rope, extend the service life of steel rope, be the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model is to provide a kind of cargo hook gear, and this cargo hook gear is simple in structure, not only can prevent the steel rope rope skipping, can also effectively reduce the wearing and tearing of steel rope, extends the service life of steel rope.Another purpose of the present utility model is to provide a kind of hoisting crane that comprises above-mentioned cargo hook gear.
For solving the problems of the technologies described above, the utility model provides a kind of cargo hook gear, comprises the suspension hook side plate that is arranged symmetrically with and is arranged at pulley between described suspension hook side plate, also comprising at least two rope gears, and described rope is blocked and is set with the sleeve pipe that can trackslip; Described rope gear is arranged symmetrically in the left and right sides of described pulley.
Preferably, two described rope gears are on the horizontal center line of described pulley.
Preferably, described rope gear is four, and two described rope gears are arranged symmetrically on the horizontal center line of described pulley, and all the other two described rope gears are arranged symmetrically in the bottom of described pulley.
Preferably, described rope gear is the first thru-bolt, fixes by packing ring and nut and described suspension hook side plate.
Preferably, described sleeve pipe is steel pipe.
Preferably, pass through the second thru-bolt captive joint between described suspension hook side plate.
Preferably, described the second thru-bolt is two, is arranged symmetrically with along the vertical center line of described suspension hook side plate, and is positioned at the below of described pulley.
Relative above-mentioned background technology, cargo hook gear provided by the utility model comprise the suspension hook side plate that is arranged symmetrically with and be arranged at pulley between described suspension hook side plate, and also comprising at least two rope gears, described rope is blocked and is set with the sleeve pipe that can trackslip; Described rope gear is arranged symmetrically in the left and right sides of described pulley, in order to prevent from being wrapped in the steel rope rope skipping on described pulley.block at the rope of cargo hook gear and be set with sleeve pipe, and described sleeve pipe can trackslip, steel rope and rope gear have been isolated in the existence of sleeve pipe, make that in working process, steel rope directly contacts with sleeve pipe, because sleeve pipe can trackslip, make steel rope be with contacting of sleeve pipe the contact of rolling, and it is fixing due to the rope gear in prior art, steel rope is moving contact with the contacting between gear of restricting, and friction of rolling is much smaller than cliding friction, so compare with the cliding friction between the rope gear with steel rope in prior art, friction of rolling in the utility model between steel rope and sleeve pipe will reduce the wearing and tearing of steel rope greatly, thereby extend the service life of steel rope.
The utility model also provides a kind of hoisting crane, comprises lifting mechanism and the load-engaging device that is arranged at described lifting mechanism, and described load-engaging device is the described cargo hook gear of above-mentioned any one.
Preferably, described hoisting crane is specifically tower crane.
Because above-mentioned cargo hook gear has above-mentioned technique effect, also possess above-mentioned technique effect so have the hoisting crane of this cargo hook gear, repeat no more.
Description of drawings
Fig. 1 is the structural representation of a kind of typical cargo hook gear in prior art;
Fig. 2 is the structural representation of a kind of rope processing device in prior art;
Fig. 3 provides the structural representation of a kind of specific embodiment of cargo hook gear for the utility model;
Fig. 4 be cargo hook gear shown in Fig. 3 A-A to part sectional view.
The specific embodiment
Core of the present utility model is to provide a kind of cargo hook gear, and this cargo hook gear is simple in structure, not only can prevent the steel rope rope skipping, can also effectively reduce the wearing and tearing of steel rope, extends the service life of steel rope.Another core of the present utility model is to provide a kind of hoisting crane that comprises above-mentioned cargo hook gear.
In order to make those skilled in the art person understand better the utility model scheme, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
It is pointed out that the left and right and inferior noun of locality in the utility model is all to be arranged in figure and parts positions each other defines with parts in Fig. 3 and Fig. 4, just clear and convenient for the expression technology scheme.Should be appreciated that the noun of locality that this paper adopts should not limit the scope that the application asks for protection.
Please refer to Fig. 3 and Fig. 4, Fig. 3 provides the structural representation of a kind of specific embodiment of cargo hook gear for the utility model; Fig. 4 be cargo hook gear shown in Fig. 3 A-A to part sectional view.
In a kind of concrete embodiment, the cargo hook gear that the utility model provides comprises the suspension hook side plate 1 that is arranged symmetrically with, and is provided with pulley 2 between described suspension hook side plate 1, and steel rope 3 is wound on described pulley 2.
Described cargo hook gear also comprises at least two rope gears, is specially in this embodiment two rope gears; Here it is pointed out that above-mentioned rope gear refers to the parts that prevent that the steel rope in work from skidding off from the grooving of pulley 2, hereinafter consistent therewith, repeat no more.
Described rope is blocked and further is set with sleeve pipe 5, and described sleeve pipe 5 can trackslip around described rope gear.Restrict gears between described suspension hook side plate 1 for described two, and be arranged symmetrically in the left and right sides of described pulley 2, so that rope skipping phenomenons occur the steel rope 3 that prevents from being wrapped on described pulley 2.
Preferably, two described rope gears can be arranged on the horizontal center line of described pulley 2.
Here it is pointed out that the steel rope 3 that is wrapped on pulley 2 contact with being sleeved on the sleeve pipe 5 that rope blocks, and 5 pairs of steel ropes 3 of sleeve pipe there are certain squeezing action, at work, during steel rope 3 motion, can avoid skipping rope under the squeezing action of sleeve pipe 5.During actual the setting, the distance between rope gear and pulley 2 can be set as required, so that steel rope 3 can avoid rope skipping to be as the criterion.
Wherein, the rope gear can have various ways, wherein a kind of comparatively easy and failure-free form is for selecting the first thru-bolt 4, and the two ends of described the first thru-bolt 4 are passed respectively in the bolt hole of the suspension hook side plate 1 that is arranged symmetrically with, and fixing with suspension hook side plate 1 by packing ring 41 and nut 42.
In addition, can pass through the second thru-bolt 6 captive joints between two suspension hook side plates 1, two the second thru-bolts 6 can be set particularly, and described the second thru-bolt 6 is arranged symmetrically with along the vertical center line of suspension hook side plate 1, is arranged in the below (being shown in Fig. 3) of pulley 2.
in the course of the work, when the needs hoisting heavy, by cargo hook gear, weight is lifted by crane, then be transported to the appointed place, the steel rope 3 that is wrapped on pulley 2 is regulated length by the equalizer pulley of lifting mechanism, in the motion process of steel rope 3, be subject to the iris action of the first thru-bolt 4, can avoid steel rope 3 that rope skipping phenomenon occurs, and be set with sleeve pipe 5 on the first thru-bolt 4, steel rope 3 directly contacts with sleeve pipe 5, and because sleeve pipe 5 can trackslip, so contacting between steel rope 3 and sleeve pipe 5 is the contact of rolling, friction between steel rope 3 and sleeve pipe 5 is friction of rolling, the wearing and tearing of steel rope 3 have been reduced widely, extended the life-span of steel rope 3.
In addition, because the first thru-bolt 4 as the rope gear is simple in structure with the sleeve pipe 5 that is sleeved on described the first thru-bolt 4, be convenient to make, correspondingly reduced the productive costs of cargo hook gear.
Further, in order to prevent better steel rope 3 rope skippings, described the first thru-bolt 4 can be set to four, be arranged symmetrically in the left and right sides of pulley 2.Particularly, wherein two the first thru-bolts 4 are arranged symmetrically on the horizontal center line of described pulley 2, are positioned at the both sides of described pulley 2, and all the other two the first thru-bolts 4 are arranged in the below of described pulley 2, and are symmetrical along the vertical center line of described pulley 2.
Similarly, the distance between the first thru-bolt 4 and pulley 2 is can avoid steel rope 3 rope skippings to be as the criterion.
When actual the setting, number and the position of rope gear can be set as required, be not limited to above-described embodiment restricted portion, as long as can effectively avoid the steel rope rope skipping.
Compared with prior art, cargo hook gear provided by the utility model blocks at rope the sleeve pipe that suit can trackslip, steel rope in prior art and moving contact between rope gear are improved to steel rope to be contacted with rolling between sleeve pipe, thereby between steel rope and sleeve pipe be friction of rolling, reduce the wearing and tearing of steel rope, extended the service life of steel rope.In addition, the rope gear that provides due to the utility model and the simple structure of sleeve pipe are convenient to manufacturing, so also correspondingly reduced manufacturing cost.
Except above-mentioned cargo hook gear, the utility model also provides a kind of hoisting crane, comprises lifting mechanism and the load-engaging device that is arranged at described lifting mechanism, and described load-engaging device is specially above-mentioned cargo hook gear.The structure of these other each several parts of hoisting crane please refer to prior art, and this paper repeats no more.
Particularly, above-mentioned hoisting crane is specifically tower crane.
Above hoisting crane provided by the utility model and cargo hook gear thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (9)
1. cargo hook gear comprises the suspension hook side plate that is arranged symmetrically with and is arranged at pulley between described suspension hook side plate that it is characterized in that, also comprising at least two rope gears, described rope is blocked and is set with the sleeve pipe that can trackslip; Described rope gear is arranged symmetrically in the left and right sides of described pulley.
2. cargo hook gear as claimed in claim 1, is characterized in that, two described rope gears are on the horizontal center line of described pulley.
3. cargo hook gear as claimed in claim 1, is characterized in that, described rope gear is four, and two described rope gears are arranged symmetrically on the horizontal center line of described pulley, and all the other two described rope gears are arranged symmetrically in the bottom of described pulley.
4. cargo hook gear as described in the claims 1 to 3 any one, is characterized in that, described rope gear is the first thru-bolt, fixes by packing ring and nut and described suspension hook side plate.
5. cargo hook gear as described in the claims 1 to 3 any one, is characterized in that, described sleeve pipe is steel pipe.
6. cargo hook gear as described in the claims 1 to 3 any one, is characterized in that, passes through the second thru-bolt captive joint between described suspension hook side plate.
7. cargo hook gear as claimed in claim 6, is characterized in that, described the second thru-bolt is two, is arranged symmetrically with along the vertical center line of described suspension hook side plate, and is positioned at the below of described pulley.
8. a hoisting crane, comprise lifting mechanism and the load-engaging device that is arranged at described lifting mechanism, it is characterized in that, described load-engaging device is the described cargo hook gear of claim 1 to 7 any one.
9. hoisting crane as claimed in claim 8, is characterized in that, described hoisting crane is specifically tower crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220654961 CN202936094U (en) | 2012-12-03 | 2012-12-03 | Crane and hook assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220654961 CN202936094U (en) | 2012-12-03 | 2012-12-03 | Crane and hook assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202936094U true CN202936094U (en) | 2013-05-15 |
Family
ID=48320346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220654961 Expired - Fee Related CN202936094U (en) | 2012-12-03 | 2012-12-03 | Crane and hook assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202936094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109573815A (en) * | 2018-12-10 | 2019-04-05 | 中联重科股份有限公司 | Movable pulley mounting frame of crane hook, hook assembly and crane |
-
2012
- 2012-12-03 CN CN 201220654961 patent/CN202936094U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109573815A (en) * | 2018-12-10 | 2019-04-05 | 中联重科股份有限公司 | Movable pulley mounting frame of crane hook, hook assembly and crane |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20171203 |