CN201991531U - Connecting bolt anti-loosing device - Google Patents
Connecting bolt anti-loosing device Download PDFInfo
- Publication number
- CN201991531U CN201991531U CN2011200919910U CN201120091991U CN201991531U CN 201991531 U CN201991531 U CN 201991531U CN 2011200919910 U CN2011200919910 U CN 2011200919910U CN 201120091991 U CN201120091991 U CN 201120091991U CN 201991531 U CN201991531 U CN 201991531U
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- CN
- China
- Prior art keywords
- bolt
- connecting bolt
- loosing
- sleeve
- loose
- 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 connecting bolt anti-loosing device, which comprises a connecting bolt (3). A screw cap (7) of the connecting bolt (3) is sleeved in an anti-loosing sleeve (4) which limits peripheral rotation of the connecting bolt (3), and a limiting bolt (6) which mounts the anti-loosing sleeve (4) onto a cutting head is disposed on the anti-loosing sleeve (4). The anti-loosing sleeve is made by a profiling method, namely, the anti-loosing sleeve is made into an internally hexagonal sleeve according to an externally hexagonal screw cap on the special bolt, is in sleeve connection with the special bolt during mounting, can limit peripheral rotation of the bolt and accordingly prevents the bolt from loosing. The connecting bolt anti-loosing device is convenient to be assembled and disassembled, simple in manufacture, high in safety and remarkable in anti-loosing effect.
Description
Technical field
The utility model relates to a kind of attachment bolt locking device, belongs to field of mechanical technique.
Background technology
In cutting head of roadheader and cutter head shaft connection process, locking thread method commonly used mainly contains that friction is locking, machinery is locking, permanent locking etc.Rubbing locking is to produce the thrust that does not change with load change in screw pair.For example to top nut method, because cutterhead and cutter head shaft are to utilize screw attachment, this method is obstructed; Packing ring method, the pretightning force of utilizing packing ring to produce are not enough to overcome the high pulling torque of cutterhead and cutter head shaft generation, and this method also can not.Mechanical seal split shed nut and cottor pin, monaural, ears thrust washer etc. all be have carry out on the basis of nut locking, inapplicable; Wherein the head eye bolt is convenient owing to installing and removing with the steel wire method of connecting, and it is more extensive to connect application with cutter head shaft at cutterhead, but there is certain potential safety hazard in the linking intensity deficiency.And for use that the screw thread pair do not open realizes permanent locking at cutterhead with also inapplicable on cutter head shaft connects because cutterhead belongs to consumable accessories in development machine work, often carry out dismounting and replacing.Thereby cutting head of roadheader and locking the becoming of cutter head shaft attachment bolt have a technical problem to be solved.
The utility model content
Technical problem to be solved in the utility model provides a kind of easy accessibility, makes simple, safe, the significant attachment bolt locking device of anti-loosing effect.
In order to solve the problems of the technologies described above, the basic technical scheme that the utility model adopts is: the attachment bolt locking device comprises that connecting bolt and nut thereof, loose-proof sleeve, caging bolt form, the spiro cap of described connecting bolt is contained in the loose-proof sleeve that restricted described connecting bolt circumferentially rotates, and described loose-proof sleeve is provided with described loose-proof sleeve is installed in caging bolt on the cutterhead.
As one of improvement project of the utility model basic technical scheme: hexagonal cover in described loose-proof sleeve is made according to the outer-hexagonal nut on the described connecting bolt.Adopt the cutting head of roadheader and the cutter head shaft attachment bolt locking device of technique scheme, utilize a loose-proof sleeve to be socketed on the outer-hexagonal head of nut of connecting bolt, can limit the circumferential rotation of connecting bolt.
As two of the improvement project of the utility model basic technical scheme: the end away from its screw rod on described connecting bolt also is provided with cylindrical bar, also be provided with circlip groove on the described cylindrical bar, be provided with the back-up ring that described loose-proof sleeve is spacing in the described circlip groove.On connecting bolt, have circlip groove, spacing after loose-proof sleeve and the connecting bolt socket with back-up ring; Caging bolt is this device to be connected time institute to use with cutterhead, can carry out lockingly to bolt, more can play locking effect.
The beneficial effects of the utility model provide a kind of easy accessibility, it is simple, safe to make, the significant cutting head of roadheader of anti-loosing effect and cutter head shaft attachment bolt locking device.
Description of drawings
Fig. 1 is applied in schematic diagram on the cutting head of roadheader for this device;
Fig. 2 is cutting head of roadheader and cutter head shaft attachment bolt locking device assembly relation schematic diagram;
Fig. 3 is the connecting bolt structural representation;
Fig. 4 is the loose-proof sleeve cut-away view;
Fig. 5 is the loose-proof sleeve vertical view.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, cutterhead 2 is connected with cutter head shaft 1 by connecting bolt 3, the nut 7 of connecting bolt 3 is sleeved in the restricted connecting bolt 3 circumferential loose-proof sleeves 4 that rotate, end away from its screw rod on the connecting bolt 3 is provided with cylindrical bar 8, cylindrical bar 8 is provided with circlip groove 9, be provided with in the circlip groove 9 loose-proof sleeve 4 spacing back-up rings 5 on cylindrical bar 8, loose-proof sleeve 4 is provided with loose-proof sleeve 4 is installed in caging bolt 6 on the cutterhead 2.
Referring to Fig. 2, loose-proof sleeve 4 and connecting bolt 3 sockets, the circumferential rotation of restriction connecting bolt 3, spacing with back-up ring 5, moving axially of restriction loose-proof sleeve 4, connecting bolt 3 is connected to cutterhead 2 on the cutter head shaft 1, and caging bolt 6 connects loose-proof sleeve 4 with cutterhead 2 simultaneously.
Referring to Fig. 4 and Fig. 5, utilize form cutting to make loose-proof sleeve 4, hexagonal cover in promptly loose-proof sleeve 4 is made according to the outer-hexagonal nut on the connecting bolt 3 is during installation and nut 7 sockets of connecting bolt 3, can limit the circumferential rotation of connecting bolt 3, and then connecting bolt 3 is played locking effect.
Though the utility model is an example with cutting head of roadheader and cutter head shaft attachment bolt locking device; but concerning the mechanical field technician; this device design principle also can be applied to the locking control of other equipment attachment bolt; as long as the technology contents that has adopted the utility model claim to limit also belongs to protection domain of the present utility model.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. attachment bolt locking device, comprise connecting bolt (3) and nut (7) thereof, loose-proof sleeve (4), caging bolt (6), it is characterized in that: the nut (7) of described connecting bolt (3) is sleeved in the loose-proof sleeve (4) that restricted described connecting bolt (3) circumferentially rotates, and described loose-proof sleeve (4) is provided with described loose-proof sleeve (4) is installed in caging bolt (6) on the cutterhead.
2. attachment bolt locking device according to claim 1 is characterized in that: hexagonal cover in described loose-proof sleeve (4) is made according to the outer-hexagonal nut (7) on the described connecting bolt (3).
3. attachment bolt locking device according to claim 1, it is characterized in that: the end that described connecting bolt (8) is gone up away from its screw rod is provided with cylindrical bar (8), described cylindrical bar (8) is provided with circlip groove (9), is provided with the back-up ring (5) that described loose-proof sleeve (4) is spacing in the described circlip groove (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200919910U CN201991531U (en) | 2011-03-31 | 2011-03-31 | Connecting bolt anti-loosing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200919910U CN201991531U (en) | 2011-03-31 | 2011-03-31 | Connecting bolt anti-loosing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201991531U true CN201991531U (en) | 2011-09-28 |
Family
ID=44668021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200919910U Expired - Fee Related CN201991531U (en) | 2011-03-31 | 2011-03-31 | Connecting bolt anti-loosing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201991531U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062197A (en) * | 2012-12-31 | 2013-04-24 | 福建海源自动化机械股份有限公司 | Anti-loosening device for socket head cap screw |
| CN105508389A (en) * | 2016-01-27 | 2016-04-20 | 江西稀有金属钨业控股集团有限公司 | Nut looseness preventing device |
| CN108412837A (en) * | 2018-05-16 | 2018-08-17 | 无锡市威特机械有限公司 | Part retaining mechanism in a kind of extruder |
| CN109931073A (en) * | 2019-03-20 | 2019-06-25 | 三一重型装备有限公司 | Locking device and heading equipment |
| CN110994874A (en) * | 2019-12-13 | 2020-04-10 | 重庆文理学院 | Special servo motor for high-precision robot |
-
2011
- 2011-03-31 CN CN2011200919910U patent/CN201991531U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062197A (en) * | 2012-12-31 | 2013-04-24 | 福建海源自动化机械股份有限公司 | Anti-loosening device for socket head cap screw |
| CN105508389A (en) * | 2016-01-27 | 2016-04-20 | 江西稀有金属钨业控股集团有限公司 | Nut looseness preventing device |
| CN108412837A (en) * | 2018-05-16 | 2018-08-17 | 无锡市威特机械有限公司 | Part retaining mechanism in a kind of extruder |
| CN109931073A (en) * | 2019-03-20 | 2019-06-25 | 三一重型装备有限公司 | Locking device and heading equipment |
| CN109931073B (en) * | 2019-03-20 | 2021-01-05 | 三一重型装备有限公司 | Anti-loosening device and tunneling equipment |
| CN110994874A (en) * | 2019-12-13 | 2020-04-10 | 重庆文理学院 | Special servo motor for high-precision robot |
| CN110994874B (en) * | 2019-12-13 | 2020-11-13 | 重庆文理学院 | Special servo motor for high-precision robot |
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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: 20110928 Termination date: 20150331 |
|
| EXPY | Termination of patent right or utility model |