CN201487072U - Slack-preventing device of coupling - Google Patents
Slack-preventing device of coupling Download PDFInfo
- Publication number
- CN201487072U CN201487072U CN200920137901XU CN200920137901U CN201487072U CN 201487072 U CN201487072 U CN 201487072U CN 200920137901X U CN200920137901X U CN 200920137901XU CN 200920137901 U CN200920137901 U CN 200920137901U CN 201487072 U CN201487072 U CN 201487072U
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- CN
- China
- Prior art keywords
- coupling
- hole
- slack
- locking plate
- preventing
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a slack-preventing device of a coupling, comprising a slack-preventing plate and a locking bolt, wherein the slack-preventing plate is provided with a through hole for penetrating the locking bolt; the coupling is provided with a thread hole corresponding to the through hole; the slack-preventing plate is locked and fixed on the coupling through the locking bolt and the thread hole; the slack-preventing plate is provided with an inner hexangular bolt hole corresponding to the outer diameter of a coupling nut; and the coupling nut passes through the inner hexangular bolt hole and is connected with a shaft. The slack-preventing plate is locked and fixed on the coupling through the locking bolt, and the rotation of the coupling nut is limited through the inner hexangular bolt hole of the slack-preventing plate. The strength and the reliability of the slack-preventing device are far larger than that of a slack-preventing gasket in the prior art and the slack-preventing device has better slack-preventing effect.
Description
Technical field
The present invention relates to the locking device of coupling in the lifting mechanism of tower crane.
Background technique
In the existing equipment, it all is the locking effect of playing fastening coupling nut by check washer to retarder by coupling that the master of lifting mechanism of tower crane hangs motor, its principle is that double wedge by check washer embeds the rotation that limits self in the keyway of motor shaft and plays locking effect, but because the insufficient strength of check washer, its double wedge easy deformation fracture, cause self rotating the locking effect that do not have, if coupling becomes flexible galloping in the time of can making crane loading, vibration, find that untimely meeting makes the damage of motor or retarder key, cause motor idle running, security incident takes place in the free fall out of hand of tower machine suspension hook.
The model utility content
The purpose of this utility model is to provide a kind of anti-loosing effect locking device of coupling preferably.
The technical solution of the utility model is such: the locking device of coupling, comprise locking plate and lock bolt, offer the through hole that passes for above-mentioned lock bolt on this locking plate, offer the corresponding tapped hole of through hole therewith on the coupling, this locking plate is locked on the coupling by this lock bolt and tapped hole, offer on this locking plate and the corresponding hexagon socket head cap screw of the external diameter of coupling nut hole, the coupling nut passes this hexagon socket head cap screw hole and links with axle.
Above-mentioned through hole is oval slotted hole.
The thickness of above-mentioned locking plate is 10-15mm.
The hexagon socket head cap screw hole internal diameter of above-mentioned locking plate is than the big 1-2mm of external diameter of coupling nut.After adopting such scheme, the locking device of coupling of the present utility model, by lock bolt locking plate is locked on coupling, offer on the locking plate and the corresponding hexagon socket head cap screw of coupling nut external diameter hole, rotation by this hexagon socket head cap screw hole restriction coupling nut, its intensity and reliability are far longer than check washer of the prior art, have anti-loosing effect preferably.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the cut-away view of Fig. 1.
Fig. 3 is the structure enlarged diagram of locking plate among Fig. 1.
Embodiment
The locking device of coupling of the present utility model as shown in Figure 1, 2, 3, comprises locking plate 1 and lock bolt 2,3, offers 11 through holes on the locking plate 1, and lock bolt 2,3 is corresponding to two through holes 11,12 at diagonal angle in these 11 through holes.Offer on the coupling 4 respectively and through hole 11,12 corresponding tapped holes, lock bolt 2,3 passes through hole 11,12 respectively after putting elastic washer 21,31 (not shown)s respectively again, enter tapped hole corresponding on the coupling 4 at last, lock bolt 2,3 is tightened in respectively in the tapped hole corresponding on the coupling 4, thereby will prevents that loose spot 1 is locked on the coupling 4.Locking plate 1 middle part offers and the corresponding hexagon socket head cap screw of the external diameter of coupling nut 5 hole 13, and coupling nut 5 passes this hexagon socket head cap screw hole 13 and links with axle 6.
In the utility model, the thickness of locking plate 1 is 10-15mm; Hexagon socket head cap screw hole 13 internal diameters of locking plate 1 are than the big 1-2mm of external diameter of coupling nut 5; Through hole 11,12 is done the ovalisation slotted hole, is convenient to the dismounting of locking plate 1; And when all the other 9 oval slotted holes are for next dismounting on the locking plate 1 spiro keyhole position is used.
The locking device of coupling of the present utility model, by lock bolt 2,3 locking plate 1 is locked on coupling 4, rotation by the 13 restriction coupling nuts 5 of the hexagon socket head cap screw hole on the locking plate 1, its intensity and reliability are far longer than check washer of the prior art, have anti-loosing effect preferably.
Claims (4)
1. the locking device of coupling, it is characterized in that: comprise locking plate and lock bolt, offer the through hole that passes for above-mentioned lock bolt on this locking plate, offer the corresponding tapped hole of through hole therewith on the coupling, this locking plate is locked on the coupling by this lock bolt and tapped hole, offer on this locking plate and the corresponding hexagon socket head cap screw of the external diameter of coupling nut hole, the coupling nut passes this hexagon socket head cap screw hole and links with axle.
2. the locking device of coupling according to claim 1, it is characterized in that: above-mentioned through hole is oval slotted hole.
3. the locking device of coupling according to claim 1, it is characterized in that: the thickness of above-mentioned locking plate is 10-15mm.
4. the locking device of coupling according to claim 1, it is characterized in that: the hexagon socket head cap screw hole internal diameter of above-mentioned locking plate is than the big 1-2mm of external diameter of coupling nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920137901XU CN201487072U (en) | 2009-04-29 | 2009-04-29 | Slack-preventing device of coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920137901XU CN201487072U (en) | 2009-04-29 | 2009-04-29 | Slack-preventing device of coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487072U true CN201487072U (en) | 2010-05-26 |
Family
ID=42425951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920137901XU Expired - Fee Related CN201487072U (en) | 2009-04-29 | 2009-04-29 | Slack-preventing device of coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487072U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852990A (en) * | 2012-07-31 | 2013-01-02 | 苏州柏德纳科技有限公司 | Mechanical connection installation disc of hole shafts |
| CN104110529A (en) * | 2014-07-07 | 2014-10-22 | 张家港市顺佳隔热技术有限公司 | Pipe clamp of pipe of LNG gas station |
| CN104329384A (en) * | 2014-11-12 | 2015-02-04 | 苏州思莱特电子科技有限公司 | Wheel disk |
| CN105197638A (en) * | 2015-10-27 | 2015-12-30 | 天津市天塑科技集团有限公司第二塑料制品厂 | Double-position double-cylinder coiling machine and plastic film coiling system |
| CN106286557A (en) * | 2015-05-26 | 2017-01-04 | 上海梅山钢铁股份有限公司 | The mechanical locking device of locking nut and the mechanical locking method of locking nut |
| CN108644240A (en) * | 2018-06-28 | 2018-10-12 | 江西昌河汽车有限责任公司 | A kind of large main arbor half a coupler axial positioning structure |
| CN110159638A (en) * | 2019-06-19 | 2019-08-23 | 青岛同辉汽车技术有限公司 | A kind of shaft end nut three-level anti-loosening locking mechanism |
-
2009
- 2009-04-29 CN CN200920137901XU patent/CN201487072U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852990A (en) * | 2012-07-31 | 2013-01-02 | 苏州柏德纳科技有限公司 | Mechanical connection installation disc of hole shafts |
| CN104110529A (en) * | 2014-07-07 | 2014-10-22 | 张家港市顺佳隔热技术有限公司 | Pipe clamp of pipe of LNG gas station |
| CN104329384A (en) * | 2014-11-12 | 2015-02-04 | 苏州思莱特电子科技有限公司 | Wheel disk |
| CN106286557A (en) * | 2015-05-26 | 2017-01-04 | 上海梅山钢铁股份有限公司 | The mechanical locking device of locking nut and the mechanical locking method of locking nut |
| CN106286557B (en) * | 2015-05-26 | 2018-09-25 | 上海梅山钢铁股份有限公司 | The mechanical locking method of the mechanical locking device and locking nut of locking nut |
| CN105197638A (en) * | 2015-10-27 | 2015-12-30 | 天津市天塑科技集团有限公司第二塑料制品厂 | Double-position double-cylinder coiling machine and plastic film coiling system |
| CN108644240A (en) * | 2018-06-28 | 2018-10-12 | 江西昌河汽车有限责任公司 | A kind of large main arbor half a coupler axial positioning structure |
| CN110159638A (en) * | 2019-06-19 | 2019-08-23 | 青岛同辉汽车技术有限公司 | A kind of shaft end nut three-level anti-loosening locking mechanism |
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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: 20100526 Termination date: 20150429 |
|
| EXPY | Termination of patent right or utility model |