CN203948424U - A kind of car haul bolt of meeting and discussing - Google Patents
A kind of car haul bolt of meeting and discussing Download PDFInfo
- Publication number
- CN203948424U CN203948424U CN201420291413.5U CN201420291413U CN203948424U CN 203948424 U CN203948424 U CN 203948424U CN 201420291413 U CN201420291413 U CN 201420291413U CN 203948424 U CN203948424 U CN 203948424U
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- China
- Prior art keywords
- bolt
- nut
- draw bolt
- utility
- model
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of car haul bolt of meeting and discussing, comprise draw bolt, in one end of described draw bolt is arranged on and meets and discusses, double nut is set on the other end, on described draw bolt, be also provided with locking nut away from nut one end, on the draw bolt between described locking nut and double nut, cover has holddown spring.The utility model is simple in structure, reasonable in design, the utility model is simple in structure, connect reliably, solved double nut and used for a long time the loosening and releasing causing and cause mine car unhook problem, improved greatly the working life of car haul device, improve manufacturing efficiency, effectively ensured safety in production, meanwhile, underground labour's life is further ensured safely.
Description
Technical field
The utility model relates to mining car haul device field, relates in particular to a kind of car haul bolt of meeting and discussing.
Background technique
Between mine car, collide or be pulled in process, when buffer spring assembling, leave decrement, by compression or the momentary action power lower nut stretched of traction and the junction plane of hook housing must there is certain distance, and draw bolt and nut are coarse thread, because the two screw thread junction plane fit tolerance is larger, also there is certain gap.Cotter pin is in use often because following two kinds of factors are damaged: 1, tunnel moisture corrosion; 2, the impulsive load that produces makes nut frequently accept impact endurance test shock locomotive haulage mine car moment, nut can along the screw thread on draw bolt gradually the loosening axial float that produces its cut-out is made.After cotter pin is destroyed, time is once long double nut loosening and releasing, locomotive haulage power mainly passes to mine car by the thread joint face of draw bolt and double nut again, therefore when double nut is threaded off after landing from draw bolt, whole traction delivery system will be destroyed, must cause mine car to break off relations and security incident occurs, affecting carrying out in order of underground transportation production.In order to prevent the generation of similar hazard event, the safety coefficient while improving mine car operation, must arrange a kind of safe and reliable anti-thread-releasing device and solve this problem.Therefore,, for addressing the above problem, spy provides a kind of new technological scheme.
Model utility content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of car haul bolt of meeting and discussing is provided.
The utility model is to be achieved through the following technical solutions:
A kind of car haul bolt of meeting and discussing, comprise draw bolt, in one end of described draw bolt is arranged on and meets and discusses, double nut is set on the other end, on described draw bolt, be also provided with locking nut away from nut one end, on the draw bolt between described locking nut and double nut, cover has holddown spring.
As preferably, on described draw bolt away from being also provided with cotter pin on nut one end.
As preferably, described holddown spring and draw bolt are coaxially arranged.
As preferably, the two ends of described holddown spring are plane.
As preferably, described holddown spring is that spring steel is made.
Compared with prior art, the beneficial effects of the utility model are: the utility model is simple in structure, reasonable in design, the utility model has solved double nut and has used the loosening and releasing causing for a long time and cause mine car unhook problem, improve greatly the working life of car haul device, improved manufacturing efficiency, effectively ensured safety in production, meanwhile, underground labour's life is further ensured safely.
Brief description of the drawings
Fig. 1 is mounting structure schematic diagram of the present utility model;
Fig. 2 is structural representation of the present utility model.
In figure: 1. meet and discuss; 2. draw bolt; 3. end support; 4. spring; 5. hook housing; 6. double nut; 7. holddown spring; 8. locking nut; 9. cotter pin.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1 and Fig. 2, a kind of car haul bolt of meeting and discussing, comprise draw bolt 2, one end of described draw bolt 2 is arranged on meets and discusses in 1, and double nut 6 is set on the other end, on described draw bolt 2, be also provided with locking nut 8 away from nut one end, on draw bolt 2 between described locking nut 8 and double nut 6, cover has holddown spring 7, and described holddown spring 7 is coaxially arranged with draw bolt 2, in the time that reality is used, the two ends of described holddown spring 7 are plane, and described holddown spring 7 is made for spring steel.On described draw bolt 2, away from being also provided with cotter pin 9 on nut one end, can further stop coming off of locking spring 8.
Its embodiment is: when use, draw bolt 2 is arranged on end support 3 by spring 4 and hook housing 5.Now holddown spring 7 can produce between the screw thread that pretightening force makes locking nut 8, double nut 6 and draw bolt 2 and produce impacting force, can effectively stop that locking nut 8 and double nut 6, because of loosening, play occurs, therefore double nut 6 just there will not be dropout phenomenon.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. the car haul bolt of meeting and discussing, comprise draw bolt (2), one end of described draw bolt (2) is arranged on meets and discusses in (1), double nut (6) is set on the other end, it is characterized in that: described draw bolt (2) is upper is also provided with locking nut (8) away from nut one end, the upper cover of draw bolt (2) between described locking nut (8) and double nut (6) has holddown spring (7).
2. a kind of car haul according to claim 1 bolt of meeting and discussing, is characterized in that: described draw bolt (2) is upper away from being also provided with cotter pin (9) on nut one end.
3. a kind of car haul according to claim 1 bolt of meeting and discussing, is characterized in that: described holddown spring (7) is coaxially arranged with draw bolt (2).
4. according to the bolt of meeting and discussing of a kind of car haul described in claim 1 or 3, it is characterized in that: the two ends of described holddown spring (7) are plane.
5. according to the bolt of meeting and discussing of a kind of car haul described in claim 1 or 4, it is characterized in that: described holddown spring (7) is made for spring steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291413.5U CN203948424U (en) | 2014-06-04 | 2014-06-04 | A kind of car haul bolt of meeting and discussing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291413.5U CN203948424U (en) | 2014-06-04 | 2014-06-04 | A kind of car haul bolt of meeting and discussing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948424U true CN203948424U (en) | 2014-11-19 |
Family
ID=51890461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420291413.5U Expired - Fee Related CN203948424U (en) | 2014-06-04 | 2014-06-04 | A kind of car haul bolt of meeting and discussing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203948424U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154095A (en) * | 2014-06-04 | 2014-11-19 | 苏州***仪器有限公司 | Anti-collision part bolt for drawing mine car |
| CN104819235A (en) * | 2015-03-24 | 2015-08-05 | 烟台鲁宝钢管有限责任公司 | Stepless adjustable swing touch head device |
-
2014
- 2014-06-04 CN CN201420291413.5U patent/CN203948424U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154095A (en) * | 2014-06-04 | 2014-11-19 | 苏州***仪器有限公司 | Anti-collision part bolt for drawing mine car |
| CN104819235A (en) * | 2015-03-24 | 2015-08-05 | 烟台鲁宝钢管有限责任公司 | Stepless adjustable swing touch head device |
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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: 20141119 Termination date: 20160604 |