CN104709811A - Lifting eye nut - Google Patents
Lifting eye nut Download PDFInfo
- Publication number
- CN104709811A CN104709811A CN201310726168.6A CN201310726168A CN104709811A CN 104709811 A CN104709811 A CN 104709811A CN 201310726168 A CN201310726168 A CN 201310726168A CN 104709811 A CN104709811 A CN 104709811A
- Authority
- CN
- China
- Prior art keywords
- eyenut
- stud
- lifting eye
- nut
- undercut
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
Abstract
The invention discloses a lifting eye nut. The lifting eye nut comprises a lifting eye part and a nut part, wherein a thread is arranged at the upper end inside a screw hole of the nut part, the lower end of the nut part is provided with an unthreaded clearance groove. The clearance groove solves the problem that a stud connected with the lifting eye nut easily factures at the end of the thread when the lifting eye nut is subjected to loads inclining or perpendicular to the plane of the lifting eye in a using process; therefore, a situation that the hoisted machines and devices are damaged due to facture of the stud in the hoisting process is avoided, a hoisting operator is prevented from injury and potential safety hazards are reduced.
Description
One, technical field
The present invention relates to a kind of mechanical component gauge member, be specifically related to a kind of eyenut.
Two, background technology
Eyenut is a kind of mechanical component gauge member being widely used in lifting machinery, utensil, eyenut and stud are threaded connection, stud is connected in any way with lifted machinery, utensil, or stud is the part on lifted machinery, utensil.Its screw of prior art eyenut is perfect thread structure, after equipped with stud, the screw tip of stud is just in time near the soffit plane of eyenut, and the screw tip of stud is the most thin spot of stud intensity, in the course of the work when tilted or load perpendicular to suspension ring plane time, it is subject to the tangential force effect of transmitting bottom eyenut, often makes stud at screw tip generation fracture defect.
Three, summary of the invention
The object of the present invention is to provide a kind of new eyenut, solve eyenut in use, because being tilted or making perpendicular to the load of suspension ring plane the stud connected with it that the problem of fracture easily occurs at screw tip.
Principle of the present invention and technical scheme are: a kind of eyenut, comprise eye portion and nut portion, and at screw tip designs one section of threadless undercut of nut portion, namely described screw inner upper end is screw thread, and lower end is one section of threadless undercut.After eyenut and stud are equipped with, it is inner that the existence of this undercut makes the position of the screw tip of spiro column in eyenut screw rise to this undercut, this undercut part in eyenut screw and there is certain interval between one section of threadless spiro column external diameter.
Undercut in above-mentioned eyenut screw, its diameter dimension D
kto equal or slightly larger than the Major Diam D corresponding to screw thread specification, as D
kscope can be: D≤D
k≤ D+0.1D; Its height dimension h sets as required, and the scope as h can be set as 0.5D≤h≤2D.
The invention has the beneficial effects as follows: when eyenut is tilted or perpendicular to the load of suspension ring plane, after causing stud generation slight curves to be out of shape, first eyenut nut portion undercut end contacts with external diameter corresponding position threadless on stud, when load strengthens further, comparatively macrobending distortion can be there is in stud near above-mentioned contact site and circumference, and the screw tip of stud is because being positioned at eyenut undercut, directly do not contact with eyenut nut portion undercut end, only there is infinitesimal deformation, stress can not be produced concentrate, thus avoid stud at screw tip breakage problem.
A kind of eyenut of employing the present invention further beneficial effect is: can avoid causing lifted machinery, implement damage because stud ruptures in hoisting process, prevent hoisting personnel to be subject to personal injury, reduce potential safety hazard.
Four, accompanying drawing explanation
Fig. 1: be a kind of eyenut schematic diagram of the present invention;
Fig. 2: be a kind of eyenut of the present invention and Stud connection schematic diagram;
Fig. 3: be a kind of eyenut of the present invention and the stressed schematic diagram of stud cooperating.
In figure: 1, eye portion, 2, nut portion, 3, undercut, 4, stud
Five, detailed description of the invention
Below in conjunction with accompanying drawing, embodiment is described in detail.
A kind of eyenut of the present invention, comprise eye portion 1 and nut portion 2, nut portion 2 screw inner upper end is screw thread, and lower end is one section of threadless undercut 3, this its diameter dimension of undercut 3 D
kslightly larger than the Major Diam D corresponding to screw thread specification, D
kscope be D≤D
k≤ D+0.1D; Its height dimension h sets as required, and the scope of h is 0.5D≤h≤2D.
In the course of the work, when eyenut is tilted or perpendicular to the load of suspension ring plane, and after causing stud generation slight curves to be out of shape, first undercut 3 end of eyenut nut portion 2 contacts with external diameter corresponding position A threadless on stud 4, when load strengthens further, comparatively macrobending distortion can be there is in stud 4 near above-mentioned contact site A and circumference, and the screw tip of stud 4 is because being positioned at eyenut undercut 3, directly do not contact with described undercut 3 end, only there is infinitesimal deformation, stress can not be produced concentrate, thus avoid stud 4 at screw tip breakage problem.
A kind of eyenut of the application of the invention, can avoid causing lifted machinery, implement damage because stud ruptures in hoisting process, prevent hoisting personnel to be subject to personal injury, reduce potential safety hazard.
It should be pointed out that those skilled in the art are not departing from the improvement made under the prerequisite of the technology of the present invention principle, all should be included within protection scope of the present invention.
Claims (4)
1. an eyenut, comprises eye portion (1) and nut portion (2), it is characterized in that the screw inner upper end of nut portion (2) is screw thread, and lower end is one section of threadless undercut (3).
2. a kind of eyenut according to claim 1, is characterized in that the diameter dimension D of described undercut (3)
kto equal or slightly larger than the Major Diam D corresponding to screw thread specification.
3. a kind of eyenut according to claim 2, is characterized in that the diameter dimension D of described undercut (3)
kfor D≤D
k≤ D+0.1D.
4. a kind of eyenut according to claim 1, is characterized in that the height dimension h of described undercut (3) is 0.5D≤h≤2D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310726168.6A CN104709811A (en) | 2013-12-17 | 2013-12-17 | Lifting eye nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310726168.6A CN104709811A (en) | 2013-12-17 | 2013-12-17 | Lifting eye nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104709811A true CN104709811A (en) | 2015-06-17 |
Family
ID=53409623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310726168.6A Pending CN104709811A (en) | 2013-12-17 | 2013-12-17 | Lifting eye nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104709811A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050901U (en) * | 1989-03-18 | 1990-01-10 | 苏成俊 | Half-screw nut |
| US5690457A (en) * | 1993-10-25 | 1997-11-25 | Rud-Kettenfabrik Rieger & Dietz Gmbh. U. Co. | Eyebolt |
| CN2674178Y (en) * | 2004-02-12 | 2005-01-26 | 张绍玉 | Guiding type screw nut |
| CN1699768A (en) * | 2005-06-16 | 2005-11-23 | 孙海鑫 | Nut with an anchor eye |
| KR20090091907A (en) * | 2008-02-26 | 2009-08-31 | 이현 | Eye nut and anchor for installing for eye nut |
| KR20090126460A (en) * | 2008-06-04 | 2009-12-09 | 주식회사 근하기공 | Fixing system of the gang form lifting apparatus |
| CN201671935U (en) * | 2009-12-23 | 2010-12-15 | 康佳集团股份有限公司 | Stud bolt and suspension ring adopting same |
| CN202441693U (en) * | 2012-01-05 | 2012-09-19 | 东方蓝天钛金科技有限公司 | Titanium alloy short-thread ending bolt for aerospace |
| CN102756624A (en) * | 2012-07-25 | 2012-10-31 | 奇瑞汽车股份有限公司 | Pintle hook |
| CN203653045U (en) * | 2013-12-17 | 2014-06-18 | 山东华源莱动内燃机有限公司 | Lifting eye nut |
-
2013
- 2013-12-17 CN CN201310726168.6A patent/CN104709811A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050901U (en) * | 1989-03-18 | 1990-01-10 | 苏成俊 | Half-screw nut |
| US5690457A (en) * | 1993-10-25 | 1997-11-25 | Rud-Kettenfabrik Rieger & Dietz Gmbh. U. Co. | Eyebolt |
| CN2674178Y (en) * | 2004-02-12 | 2005-01-26 | 张绍玉 | Guiding type screw nut |
| CN1699768A (en) * | 2005-06-16 | 2005-11-23 | 孙海鑫 | Nut with an anchor eye |
| KR20090091907A (en) * | 2008-02-26 | 2009-08-31 | 이현 | Eye nut and anchor for installing for eye nut |
| KR20090126460A (en) * | 2008-06-04 | 2009-12-09 | 주식회사 근하기공 | Fixing system of the gang form lifting apparatus |
| CN201671935U (en) * | 2009-12-23 | 2010-12-15 | 康佳集团股份有限公司 | Stud bolt and suspension ring adopting same |
| CN202441693U (en) * | 2012-01-05 | 2012-09-19 | 东方蓝天钛金科技有限公司 | Titanium alloy short-thread ending bolt for aerospace |
| CN102756624A (en) * | 2012-07-25 | 2012-10-31 | 奇瑞汽车股份有限公司 | Pintle hook |
| CN203653045U (en) * | 2013-12-17 | 2014-06-18 | 山东华源莱动内燃机有限公司 | Lifting eye nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150617 |