CN2584914Y - Special connecting bolt for tower crame - Google Patents
Special connecting bolt for tower crame Download PDFInfo
- Publication number
- CN2584914Y CN2584914Y CN 02289913 CN02289913U CN2584914Y CN 2584914 Y CN2584914 Y CN 2584914Y CN 02289913 CN02289913 CN 02289913 CN 02289913 U CN02289913 U CN 02289913U CN 2584914 Y CN2584914 Y CN 2584914Y
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- Prior art keywords
- bolt
- utility
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- head
- cone
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- Expired - Fee Related
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Abstract
The utility model relates to a special connecting bolt for a tower body standard knot of a tower type crane. The head part of the bolt is a cone head, the cone head is connected with a screw rod part into one unit by a circular arc transition, and both sides at the top end of cone head are provided with positioning lug bosses. When the utility model is installed, the special connecting bolt is arranged in a connecting sleeve of the adjacent standard knots, and the cone head of the bolt is matched with a cone hole of the connecting sleeve. The positioning lug boss of the bolt is clamped and arranged in a positioning groove of the connecting sleeve, the bolt can be tightly fixed by a nut, and the tower body and the standard knot can be connected together one by one. The utility model can avoid the defects of the stress concentration of the bolt caused by heat treatment, and easy break at the root segment; the head of the bolt is positioned by the lug boss, and the utility model can be operated by single person. The utility model has the advantages of reasonable structural design, convenient assembly and disassembly and safe use. The utility model is a new generation high intensity connecting bolt used for the connection of the tower body standard knot of the existing tower type crane.
Description
(1) technical field
The utility model belongs to link, is specifically related to the special-purpose connecting bolt of a kind of stacker crane body standard knot.
(2) background technique
In the tower crane installation process for building, need to be connected and fixed with bolt between each standard knot of body of the tower, employed connecting bolt is high powerful hex head bolt.Because the heat treatment industry technical merit of processing bolt and capacity of equipment are also relatively weaker at present, when heat treatment process, make bolt root produce stress easily and concentrate and microscopic crack, bolt total quality control relative difficult; Applying working condition is abominable in addition, though have ten thousand/ reject all must cause security incident.In the using process of tower crane,, bring great loss for lives and properties and economic construction because the bolt root fracture causes the accident that tower crane integral body is collapsed to happen occasionally.
In addition, fastening body of the tower standard knot bolt need be in high-altitude narrow space two people operation simultaneously in the installation process, and careless manipulation falls easily, brings certain hidden danger to safety in production.
(3) summary of the invention
The technical problem that the utility model mainly solves is that the shape and structure that has high-strength bolt now is improved, and makes it to be difficult for causing stress to concentrate when heat treatment, and can singlely when mounted finish the fastening operation of bolt.
The technical solution of the utility model is: the special-purpose connecting bolt head of tower crane is the cone head, and the cone head connects as one by arc transition and screw portion, is provided with positioning boss in the both sides, top of cone head.
During installation, special-purpose connecting bolt is placed in the connecting sleeve of adjacent standard knot, the connecting sleeve top that is positioned at the upper end is processed as taper hole, bolt cone head matches with the connecting sleeve taper hole, the connecting sleeve top is processed with the groove that is complementary with a bolt cone positioning boss, bolt boss is installed in the groove of connecting sleeve, by two nut clamping bolts, the stacker crane body standard knot can be linked together one by one.
The utility model bolt cone head adopts arc transition to be connected with screw portion, and the bolt stress of having avoided heat treatment to cause is concentrated the drawback of root easy-rupturing; Bolt head adopts boss location, single can the operation.The special-purpose connecting bolt reasonable in design of tower crane, easy installation and removal, safe and reliable, practical, be the of new generation high-strength connecting bolt that existing stacker crane body standard knot connects.
(4) description of drawings
Fig. 1 is special-purpose connecting bolt structure of tower crane and user mode figure;
Fig. 2 is special-purpose connecting bolt side view.
Wherein: 1, cone 2, positioning boss 3, positioning groove 4, upper joint sleeve 5, connecting bolt 6, go up standard knot 7, lower joint sleeve 8, locking nut 9, standard knot down
(5) mode of execution
The utility model is a kind of improvement to existing stacker crane body standard knot connecting bolt.As shown in Figure 1 and Figure 2, the head design of high-strength connecting bolt 5 is a cone 1, and end both sides, the cone crown are processed with positioning boss 2, and the cone head is connected by the circular arc R transition with screw portion.During installation, connecting bolt 5 passes the upper joint sleeve 4 and the lower joint sleeve 7 of body of the tower standard knot, bolt cone 1 matches with the taper hole of body of the tower upper joint sleeve 4, the connecting sleeve upper end is processed with positioning groove 3, bolt positioning boss 2 is installed in the positioning groove 3 of connecting sleeve, by locking nut 8 that connecting bolt is fastening, standard knot on the body of the tower 6 and following standard knot 9 are consolidated, finish the installation exercise of whole stacker crane body thus.
The special-purpose connecting bolt of the utility model can be made into the special-purpose high-strength connecting bolt of different length, different-diameter according to the requirement of tower crane different size model.
Claims (2)
1, the special-purpose connecting bolt of a kind of tower crane is characterized in that bolt head is the cone head, and the cone head connects as one by arc transition and screw portion, is provided with positioning boss in the both sides, top of cone head.
2, the special-purpose connecting bolt of tower crane according to claim 1, it is characterized in that body of the tower standard knot connecting sleeve top is processed as taper hole, bolt cone head matches with the connecting sleeve taper hole, and the connecting sleeve top is processed with the positioning groove that is complementary with a bolt cone positioning boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02289913 CN2584914Y (en) | 2002-12-04 | 2002-12-04 | Special connecting bolt for tower crame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02289913 CN2584914Y (en) | 2002-12-04 | 2002-12-04 | Special connecting bolt for tower crame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2584914Y true CN2584914Y (en) | 2003-11-05 |
Family
ID=33749333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02289913 Expired - Fee Related CN2584914Y (en) | 2002-12-04 | 2002-12-04 | Special connecting bolt for tower crame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2584914Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033464A (en) * | 2014-06-19 | 2014-09-10 | 宁波浩渤工贸有限公司 | Novel bolt and manufacturing method thereof |
| CN106894915A (en) * | 2017-03-24 | 2017-06-27 | 中国北方发动机研究所(天津) | A kind of variable cross-section engine body sutures bolt arrangement and its assembly technology |
| CN109441934A (en) * | 2018-10-19 | 2019-03-08 | 湘电风能有限公司 | A kind of device improving bolt strength |
| CN110821005A (en) * | 2019-05-10 | 2020-02-21 | 浙江亚厦幕墙有限公司 | Pottery tile dry hanging type curtain wall structure unit |
-
2002
- 2002-12-04 CN CN 02289913 patent/CN2584914Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033464A (en) * | 2014-06-19 | 2014-09-10 | 宁波浩渤工贸有限公司 | Novel bolt and manufacturing method thereof |
| CN104033464B (en) * | 2014-06-19 | 2016-04-13 | 宁波浩渤工贸有限公司 | A kind of preparation method of bolt |
| CN106894915A (en) * | 2017-03-24 | 2017-06-27 | 中国北方发动机研究所(天津) | A kind of variable cross-section engine body sutures bolt arrangement and its assembly technology |
| CN106894915B (en) * | 2017-03-24 | 2018-06-08 | 中国北方发动机研究所(天津) | A kind of variable cross-section engine body suture bolt arrangement and its assembly technology |
| CN109441934A (en) * | 2018-10-19 | 2019-03-08 | 湘电风能有限公司 | A kind of device improving bolt strength |
| CN110821005A (en) * | 2019-05-10 | 2020-02-21 | 浙江亚厦幕墙有限公司 | Pottery tile dry hanging type curtain wall structure unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |