CN204737593U - Large tonnage hook capable of preventing rotary jamming - Google Patents
Large tonnage hook capable of preventing rotary jamming Download PDFInfo
- Publication number
- CN204737593U CN204737593U CN201520060741.9U CN201520060741U CN204737593U CN 204737593 U CN204737593 U CN 204737593U CN 201520060741 U CN201520060741 U CN 201520060741U CN 204737593 U CN204737593 U CN 204737593U
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- China
- Prior art keywords
- hook
- lifting hook
- lifting beam
- portion linkage
- bearing
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Abstract
The utility model discloses a large tonnage hook capable of preventing rotary jamming. It includes the lifting hook body, lifting beam with hooks and lifting hook nut, lifting hook body upper end has pole portion linkage segment, the lifting beam with hooks cover is on the pole portion linkage segment of lifting hook body, the end of pole portion linkage segment has the external screw thread, the end at the pole portion linkage segment of lifting hook body is connected to the lifting hook nut, installed thrust bearing between lifting hook nut and the lifting beam with hooks, lifting beam with hooks's hole bottom is provided with the annular, it has antifriction bearing to settle in the annular, antifriction bearing's the hole and the major diameter fit of pole portion linkage segment, the antifriction bearing lower part is fixed through a logical cap seal lid. After adopting foretell structure, not only can the bearing load with realize the aligning effect, make the rotation of lifting hook body rely on antifriction bearing's rolling element rotatory completely simultaneously, it be rolling friction to change the sliding friction who in the past designed, solves thoroughly that the phenomenon was hindered to rotatory card of large -tonnage lifting hook in the past, the oil blanket that sets up, only can putting, its emollient leaks.
Description
Technical field
The utility model relates to a kind of crane hook, specifically a kind of large-tonnage suspension hook preventing rotation jam.
Background technology
Existing conventional crane hook generally forms primarily of assembly pulley, yoke plate, lifting beam with hook, hook nut and suspension hook, hook nut is threaded with suspension hook, between hook nut and lifting beam with hook, there is self-aligning thrust roller bearing to support, can rotate freely around its vertical axis to realize suspension hook; There is gap between lifting beam with hook endoporus and suspension hook, when guaranteeing that suspension hook rotates, do not touch lifting beam with hook; Suspension hook in actual use, can according to the position that cleats of handling article, and automatic rotary is to balance position, and therefore suspension hook in use can rotate freely; Existing this Suspension hook structure, particularly on the large-tonnage suspension hook of hoister in large tonnage, because suspension hook deadweight is larger, and top is assembly pulley, when there is the discrepancy in elevation between several groups of steel ropes, suspension hook there will be tilting situation, again because suspension hook bearing has aligning function, bearing can be placed in balance position by automatic inclined, thus just there is suspension hook bar portion and lifting beam with hook endoporus dieback phenomenon, finally just result in suspension hook can not rotate, this situation often occurs on the main hook of large-tonnage shipbuilding gantry crane.
Afterwards in order to avoid the generation of above-mentioned condition, occurred a kind of new suspension hook, specific practice was between suspension hook bar portion and lifting beam with hook endoporus, plain bearing and axle sleeve is adopted to fill, when suspension hook is tilting, reduce steering resistance with axle sleeve, realize suspension hook and also can rotate in tilting state; Although this structure considers suspension hook and interference situation may appear in lifting beam with hook, to realizing flexible rotating with plain bearing, but in actual use, because the diameter of bore of the bar portion of large-tonnage suspension hook, axle sleeve is all larger, processing circularity ensures difficulty, and adopts free-running fit between axle sleeve and suspension rod, and suspension hook is slightly tilting, bar portion will with axle sleeve dieback, and this position poor lubrication; This structure often can use at short notice, and the time has been grown just to there will be again and rotated jam phenomenon.
Summary of the invention
The technical problems to be solved in the utility model is to provide simple, easy to process, the long-lived large-tonnage suspension hook preventing from rotating jam of a kind of structure.
In order to solve the problems of the technologies described above, the large-tonnage suspension hook preventing rotation jam of the present utility model, comprise hook body, lifting beam with hook and hook nut, hook body upper end has bar portion linkage section, lifting beam with hook is enclosed within the bar portion linkage section of hook body, the end of bar portion linkage section has outside thread, hook nut is connected to the end of the bar portion linkage section of hook body, installed thrust bearing between hook nut and lifting beam with hook, annular groove is provided with bottom the endoporus of lifting beam with hook, antifriction-bearing box is mounted with in annular groove, the endoporus of antifriction-bearing box and the major diameter fit of bar portion linkage section, antifriction-bearing box bottom is fixed by a logical cap seal lid.
Described thrust baring is self-aligning thrust roller bearing.
The endoporus of described logical lid is provided with oil sealing.
Described antifriction-bearing box is self-aligning roller bearing or deep groove ball bearing.
After adopting above-mentioned structure, due to installed thrust bearing between hook nut and lifting beam with hook, can bearing load and realize aligning effect, the antifriction-bearing box arranged in simultaneously bottom lifting beam with hook endoporus, the rotation of hook body is made to rely on the rolling body of antifriction-bearing box to rotate completely, changing the cliding friction in the past designed is friction of rolling, thoroughly solves large-tonnage suspension hook in the past and rotates jam phenomenon; The oil sealing arranged, can put only its lubricant and leak.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model can prevent the large-tonnage suspension hook rotating jam;
Fig. 2 is the A place structure for amplifying schematic diagram of Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the large-tonnage suspension hook rotating jam that prevents of the present utility model is described in further detail.
As shown in the figure, the large-tonnage suspension hook preventing rotation jam of the present utility model, comprise hook body 8, lifting beam with hook 4 and hook nut 1, hook body 8 upper end has bar portion linkage section 2, lifting beam with hook 4 has endoporus, lifting beam with hook 4 passes through its inner hole sleeve on the bar portion linkage section 2 of hook body 8, the end of bar portion linkage section is provided with outside thread, hook nut 1 is connected to the end of the bar portion linkage section of hook body 8, make to adopt between hook nut 1 with bar portion linkage section 2 be threaded fixing, installed thrust self-aligning roller bearing 3 between hook nut 1 and lifting beam with hook 4, make between hook nut 1 and lifting beam with hook 4, to adopt self-aligning thrust roller bearing 3 to support, annular groove is had bottom the endoporus of lifting beam with hook 4, the antifriction-bearing box 5 of horizontal positioned is mounted with in annular groove, said antifriction-bearing box 5 both can be self-aligning roller bearing also can be deep groove ball bearing, the inner ring of antifriction-bearing box 5 and the major diameter fit of bar portion linkage section 2, namely make bar portion linkage section 2 and lifting beam with hook 4 be supported by antifriction-bearing box 5 and make, between lifting beam with hook 4 endoporus and bar portion linkage section 2 external diameter, there is gap, antifriction-bearing box 5 bottom is fixed by the capping of a logical lid 6, the endoporus of logical lid 6 is provided with oil sealing 7, leak to place lubricant, guarantee that its lubrication is good.
Wherein, hook nut mainly fixes hook body 8, and support hooks body 8, will be delivered on lifting beam with hook 4 from hook body 8 power.Hook body mainly hangs weight and uses; Self-aligning thrust roller bearing is used for support hooks nut 2 can make gyroscopic movement; Lifting beam with hook is used for support hooks nut 2 and self-aligning thrust roller bearing 3, and by from suspension hook dynamic changes process on yoke plate (because of the pattern handling scheme of the art of this patent mainly between lifting beam with hook 4 and suspension hook 2, therefore other portion structure of suspension hook omits, for conventional structure), antifriction-bearing box 5 mainly prevents the bar portion linkage section 2 of hook body 8 stuck with the endoporus of lifting beam with hook 4, the rotary motion of hook body 8 is realized with its rolling body, change cliding friction is friction of rolling, reduces rotational resistance.
Its principle of work is as follows:
The bar portion linkage section 2 of hook body 8 is comparatively large with the interior interporal lacuna of lifting beam with hook 4, and under hook body 8 vertical or tilting situation, the bar portion linkage section 2 of hook body 8 is fitted all the time with the inner ring of antifriction-bearing box 5, adopts free-running fit therebetween, with convenient for assembly; The rotation of hook body 8 relies on the rolling body of antifriction-bearing box 5 to rotate completely, and changing the cliding friction in the past designed is friction of rolling, can not produce and rotate jam phenomenon.
Claims (4)
1. one kind can prevent the large-tonnage suspension hook rotating jam, comprise hook body (8), lifting beam with hook (4) and hook nut (1), described hook body (8) upper end has bar portion linkage section (2), lifting beam with hook (4) is enclosed within bar portion linkage section (2) of hook body (8), the end of bar portion linkage section has outside thread, hook nut (1) is connected to the end of the bar portion linkage section of hook body (8), it is characterized in that: installed thrust bearing (3) between described hook nut (1) and lifting beam with hook (4), annular groove is provided with bottom the endoporus of described lifting beam with hook (4), antifriction-bearing box (5) is mounted with in described annular groove, the endoporus of described antifriction-bearing box (5) and the major diameter fit in bar portion linkage section (2), described antifriction-bearing box (5) bottom is fixed by (6) capping of a logical lid.
2. prevent according to according to claim 1 the large-tonnage suspension hook rotating jam, it is characterized in that: described thrust baring (3) is self-aligning thrust roller bearing.
3. prevent according to according to claim 1 the large-tonnage suspension hook rotating jam, it is characterized in that: the endoporus of described logical lid (6) is provided with oil sealing (7).
4. prevent according to according to claim 1 the large-tonnage suspension hook rotating jam, it is characterized in that: described antifriction-bearing box (5) is self-aligning roller bearing or deep groove ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520060741.9U CN204737593U (en) | 2015-01-29 | 2015-01-29 | Large tonnage hook capable of preventing rotary jamming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520060741.9U CN204737593U (en) | 2015-01-29 | 2015-01-29 | Large tonnage hook capable of preventing rotary jamming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204737593U true CN204737593U (en) | 2015-11-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520060741.9U Expired - Fee Related CN204737593U (en) | 2015-01-29 | 2015-01-29 | Large tonnage hook capable of preventing rotary jamming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204737593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773651A (en) * | 2015-01-29 | 2015-07-15 | 象王重工股份有限公司 | Large tonnage hook capable of preventing rotary jamming |
-
2015
- 2015-01-29 CN CN201520060741.9U patent/CN204737593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773651A (en) * | 2015-01-29 | 2015-07-15 | 象王重工股份有限公司 | Large tonnage hook capable of preventing rotary jamming |
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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: 20151104 Termination date: 20160129 |
|
| EXPY | Termination of patent right or utility model |