CN202577063U - Split-type locknut component - Google Patents
Split-type locknut component Download PDFInfo
- Publication number
- CN202577063U CN202577063U CN 201220006063 CN201220006063U CN202577063U CN 202577063 U CN202577063 U CN 202577063U CN 201220006063 CN201220006063 CN 201220006063 CN 201220006063 U CN201220006063 U CN 201220006063U CN 202577063 U CN202577063 U CN 202577063U
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- China
- Prior art keywords
- pin
- hole
- nut
- packing ring
- screw nut
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- Expired - Fee Related
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Abstract
The utility model relates to a split-type locknut component, which is fixed on an elastic bar of a rail transit rail fastening piece, and includes a screw nut provided with first pin holes formed therein, a gasket arranged under the screw nut and provided with second pin holes, and a pin sequentially penetrating through the first and the second pin holes. Compared with the prior art, the split-type locknut component has the advantages of simple structure, high reliability, low cost and the like.
Description
Technical field
The utility model relates to a kind of nut assembly, especially relates to a kind of split type anti-loosen screw nut component.
Background technology
For train balance on rail is gone, and reduce of the influence of vehicle dynamic load, the rail fastening of maintenance rail gauge and stationarity should be installed on sleeper sleeper and railway roadbed.Fastener is fixed in rail on the sleeper through spring and securing member.Produce loosening possibility because the effect of vibration and power, fastener nut have, behind the nut loosening, be difficult for finding that this not becoming flexible when angle causes fastener to get loose fully not quite, as yet more is difficult to discover that its result can endanger line security, causes accident.Especially on gapless track, a certain amount of nut loosening makes fastener can not keep the buckle press of rail, causes the winter rail to be broken, and summer, the rail buck of rail directly influenced traffic safety.Therefore, railway interests's regulation, annual spring and autumn, rail fastening nut screwing clamping on the reply circuit overhauls, and workload is very heavy.At present, China is just in Develop High-Speed Railway, and city rail is also greatly developed, and this will make fastener nut loosening problem more outstanding.
Publication number is that the CN2119532U utility model patent discloses " a kind of railway track fastener does not have the packing ring locknut ".This nut self contains gasket function, has adopted flange and locking groove.Rail fastening is when work, and in the fastening elastic rod embedded groove, under the moment of torsion, nut just can not produce loosening outside not increasing.This nut still has inconvenience in practicality: 1, installation and removal inconvenience, particularly after spring has embedded locking groove, screw or unscrew all must spring be broken away from behind the locking groove with bigger moment of torsion could turn; 2, because locking groove number is limited, play locking effect in order to get into groove, must revolve than wide-angle, the buckle press that different fasteners produce differs greatly; When 3, being installation code, because the spacing effect of groove causes measuring true mounting torque as if moment of torsion with nut; 4, this is a kind of all-in-one-piece part, must use same material processing; 5, because the existence of flange is difficult for processing, waste material; 6, fastening different elasticity fastener must be changed whole locknut.
The utility model content
The purpose of the utility model is exactly that a kind of simple in structure, reliability is high, cost is low split type anti-loosen screw nut component is provided in order to overcome the defective that above-mentioned prior art exists.
The purpose of the utility model can realize through following technical scheme:
A kind of split type anti-loosen screw nut component, this nut assembly are fixed on the track traffic rail fastening spring, it is characterized in that, comprising:
Nut, this nut is provided with first pin-and-hole;
Packing ring, this packing ring are located at the nut below, and are provided with second pin-and-hole;
Pin, this pin passes first pin-and-hole, second pin-and-hole successively.
Described packing ring below is provided with and the identical groove of track traffic rail fastening spring shape.
Rail fastening is when work, and fastening elastic rod embeds in the locking groove of packing ring, and the nut of screwing inserts pin in first pin-and-hole and second pin-and-hole that connects after institute's palpus angle; After nut and packing ring were connected into one through pin, nut assembly was not having under the effect of outer torsion square, and spring can not skid off groove; Nut assembly just can not produce loosening phenomenon, during dismounting, pulls out pin; Unscrew nut, take off nut, take off packing ring again.
The pin-and-hole somewhat larger in diameter that runs through on the nuts and washers is in pin, makes the dress pin easily, because packing ring is spacing by spring through groove, therefore can not rotate, if nut assembly has and looseningly revolves cunning and must occur between nut and the packing ring.When nut takes place by a little loosening revolving when sliding, understand the jam-packed pin naturally.
The number of the number of described second pin-and-hole and first pin-and-hole concerns as follows:
The number of described second pin-and-hole is different with the number of first pin-and-hole.
The number of the number of described second pin-and-hole and first pin-and-hole concerns as follows:
M=N ± q, wherein M is the number of second pin-and-hole, N is the number of first pin-and-hole.
Described 1≤q≤5.
After one group of pin-and-hole consistency from top to bottom is arranged on nut and the packing ring, no matter be clockwise or be rotated counterclockwise (360 °/n)-[360 °/(M)] after, another group pin-and-hole alignment is all arranged.Anglec of rotation this moment self angular interval when n hole is uniformly distributed with.Under the operating mode of this permission low-angle adjustment, buckle press differs less between different fasteners.
According to actual condition, packing ring adopts the material that damping capacity is arranged, and can play the effect that partially absorbs vibration.
Adopt the made packing ring of the little or negative expansion coefficient of coefficient of thermal expansion, can alleviate because the phenomenon that variations in temperature causes tightening force to change.
Can change packing ring according to the shape of spring secures rail to sleeper, and nut does not need to change with different locking grooves.
Compared with prior art, the utlity model has following advantage:
1, fastener is not produced at dynamic load effect lower nut loosening, and overcome the inconvenience of existing locknut, and it has simple in structure, high reliability features;
2, adopt split-type structural, maturation process easy to use is processed nut and packing ring respectively, effectively reduces processing cost.
Description of drawings
Fig. 1 is the main TV structure sketch map of the utility model;
Fig. 2 is the plan structure sketch map of the utility model;
Fig. 3 is the gasket construction sketch map of the utility model;
Fig. 4 is the A-A sectional view of Fig. 3;
Fig. 5 is the nut structure sketch map of the utility model;
Fig. 6 is the B-B sectional view of Fig. 5.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
Like Fig. 1～shown in Figure 6, a kind of split type anti-loosen screw nut component, this nut assembly are fixed on the track traffic rail fastening spring, comprising:
Nut 1, this nut 1 is provided with first pin-and-hole 11;
Packing ring 2, this packing ring 2 is located at nut 1 below, and is provided with second pin-and-hole 21;
Described packing ring 2 belows are provided with and the identical groove 4 of track traffic rail fastening spring shape.
The utility model is used in and need not to change the existing equipment component.Installation and application and original parts nut are basic identical.Packing ring 2 is put on the screw spike, pushed down spring, make spring embed locking groove 4; Again locknut 1 is put on the screw spike, with fastened tools it is tightened until being pressed on the packing ring 2, and compress spring gradually along with tightening both.When torsional moment reaches the value of regulation, continue low-angle twisting nut 1, on nut 1 and packing ring 2, there is the pin-and-hole that runs through to aim at integral body up and down and runs through; Insert pin 3, anti-loosen screw nut component gets into duty.Otherwise be demounting procedure.
In the present embodiment,, 7 second pin-and-holes 21 are arranged on the packing ring if on the nut 6 first pin-and-holes 11 are arranged, then when nut 1 with after packing ring 2 contact, every rotation 360/6-360/7=8.57 degree just has upward next organize hole aligning can to insert and pin 3.Under this operating mode adjustment, buckle press differs less between different fasteners.As if the anti-loosen screw nut component of screwing with instruments such as torque wrenches, can accurately learn and control the moment of torsion when screwing.
After installing by the said mode of present embodiment, cut off pin, otherwise that anti-loosen screw nut component can not produce is loosening only if meet extreme case.
Claims (4)
1. split type anti-loosen screw nut component, this nut assembly is fixed on the track traffic rail fastening spring, it is characterized in that, comprising:
Nut, this nut is provided with first pin-and-hole;
Packing ring, this packing ring are located at the nut below, and are provided with second pin-and-hole;
Pin, this pin passes first pin-and-hole, second pin-and-hole successively.
2. a kind of split type anti-loosen screw nut component according to claim 1 is characterized in that, described packing ring below is provided with and the identical groove of track traffic rail fastening spring shape.
3. a kind of split type anti-loosen screw nut component according to claim 1 is characterized in that the number of described second pin-and-hole is different with the number of first pin-and-hole.
4. a kind of split type anti-loosen screw nut component according to claim 3 is characterized in that, the number of the number of described second pin-and-hole and first pin-and-hole concerns as follows:
M=N ± q, wherein M is the number of second pin-and-hole, N is the number of first pin-and-hole;
Described 1≤q≤5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220006063 CN202577063U (en) | 2012-01-06 | 2012-01-06 | Split-type locknut component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220006063 CN202577063U (en) | 2012-01-06 | 2012-01-06 | Split-type locknut component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202577063U true CN202577063U (en) | 2012-12-05 |
Family
ID=47246492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220006063 Expired - Fee Related CN202577063U (en) | 2012-01-06 | 2012-01-06 | Split-type locknut component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202577063U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443300A (en) * | 2018-05-11 | 2018-08-24 | 万雷 | A kind of thread connector for preventing from loosening |
| CN110459117A (en) * | 2019-08-16 | 2019-11-15 | 西南石油大学 | A kind of liftable compact process control experimental teaching unit |
| CN110904743A (en) * | 2019-12-10 | 2020-03-24 | 中铁山桥集团有限公司 | Mechanical anti-loosening structure of turnout fastener |
-
2012
- 2012-01-06 CN CN 201220006063 patent/CN202577063U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443300A (en) * | 2018-05-11 | 2018-08-24 | 万雷 | A kind of thread connector for preventing from loosening |
| CN110459117A (en) * | 2019-08-16 | 2019-11-15 | 西南石油大学 | A kind of liftable compact process control experimental teaching unit |
| CN110904743A (en) * | 2019-12-10 | 2020-03-24 | 中铁山桥集团有限公司 | Mechanical anti-loosening structure of turnout fastener |
| CN110904743B (en) * | 2019-12-10 | 2021-10-29 | 中铁山桥集团有限公司 | Mechanical anti-loosening structure of turnout fastener |
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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: 20121205 Termination date: 20160106 |