CN104196865A - Anti-looseness interlocking and fastening device with irregularly-shaped ratchet pad for high-speed-rail contact net - Google Patents
Anti-looseness interlocking and fastening device with irregularly-shaped ratchet pad for high-speed-rail contact net Download PDFInfo
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- CN104196865A CN104196865A CN201410497330.6A CN201410497330A CN104196865A CN 104196865 A CN104196865 A CN 104196865A CN 201410497330 A CN201410497330 A CN 201410497330A CN 104196865 A CN104196865 A CN 104196865A
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- ratchet
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- nut
- hand thread
- interlocking
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Abstract
The invention provides an anti-looseness interlocking and fastening device with an irregularly-shaped ratchet pad for a high-speed-rail contact net. A lock nut of which the turning direction is opposite to that of an internal thread of a mother nut and the irregularly-shaped ratchet pad are adopted to lock the mother nut, a rotary force generated in case of looseness of the mother nut promotes the irregularly-shaped ratchet pad to drive the lock nut to rotate, and at the moment, the mother nut moves in the locking proceeding direction, so that looseness of the mother nut is prevented. The technical scheme is that the anti-looseness interlocking and fastening device comprises a main bolt, a mother nut, a ratchet pad and a lock nut, wherein a right-hand thread is formed on the main bolt; a left-hand thread is formed in the right-hand thread region, close to the end part, of the main bolt; the mother nut is matched with the right-hand thread; the lock nut is matched with the left-hand thread; the ratchet pad is arranged between the mother nut and the lock nut; ratchets distributed in the circumferential direction are respectively arranged on two end surfaces of the ratchet pad; notched blades of the ratchets are arranged in the radial direction.
Description
Technical field
The present invention relates to securing means technical field, be specifically related to the special-shaped sour jujube pad locking securing means of interlocking for a kind of high ferro contact net.
Background technique
The fastener using on China Express Railway electrified contacting nets, it is mainly the technology of Introduced From Abroad, generally at the bolt connecting, the helical thread portion of nut, before screwing, installation coats a kind of special viscose glue, this viscose glue Yao Cong U.S. and Japanese import, price is very expensive, uses and preserve all limited restrictions.Importantly use pretty troublesomely, workpiece will thoroughly clean up before gluing, finish-drying, and rainy day, large greasy weather, large sun sky, blow day, all inconvenience constructions in freezing day.After having constructed, can not come into operation immediately, after viscose glue solidifies thoroughly, just can bear vibration force.Because contact net will be adjusted the height of wire and track sometimes, fastening piece must unclamp and tighten.This screw that has been coated with viscose glue is generally difficult to unclamp with spanner, sometimes must be sawed-off.
Existing other forms of fastener, as increased compression spring, due to equipment vibrations, is difficult to continue fastening, easily occurs loosening and does not have a fastening effect.
Summary of the invention
The invention provides the special-shaped sour jujube pad locking securing means of interlocking for a kind of high ferro contact net, adopt the locking nut contrary with mother nut rotation direction and special-shaped sour jujube pad to lock mother nut, the rotating force that mother nut produces when loosening impels the moving locking nut of special-shaped sour jujube rim strip towards the movement of advancing of the direction of mother nut locking, thereby stops the loosening of mother nut.
Technical program of the present invention lies in: comprise kingbolt, mother nut, ratchet pad and locking nut, described kingbolt is provided with right-hand thread, one section of right-hand thread region near end on described kingbolt is also provided with left hand thread, the spiral shell footpath of described right-hand thread and left hand thread, pitch are identical, described mother nut coordinates with described right-hand thread, and described locking nut coordinates with described left hand thread; Described ratchet pad is located between described mother nut and locking nut, and both ends of the surface are respectively equipped with the ratchet along the circumferential direction distributing, and the land of described ratchet is disposed radially.
Preferably described ratchet anterior angle tilts towards ratchet inner side as of the present invention, with the axial angle of ratchet pad be 3～5 °.
As of the present invention preferred, described ratchet is divided into interior ratchet and outer ratchet, and the sense of rotation of described interior ratchet and outer ratchet is identical, between interior ratchet and outer ratchet, is provided with annular groove.
As of the present invention preferred, the angle between described adjacent outer ratchet land is 30 °, and the angle between described adjacent interior ratchet land and outer ratchet land is 15 °.
As of the present invention preferred, the projection of the ratchet sense of rotation of described ratchet pad both ends of the surface in the plane axial perpendicular to ratchet pad is contrary.
As of the present invention preferred, the land hardness of described ratchet pad is greater than the hardness of described mother nut and locking nut.
Beneficial effect of the present invention is:
1, owing to being provided with the locking nut contrary with mother nut rotation direction in this device, between mother nut and locking nut, be provided with the special-shaped sour jujube pad with ratchet simultaneously, when mother nut occurs to become flexible, direction of advance by the moving locking nut of special-shaped sour jujube rim strip towards mother nut locking moves, form " locking ", play the locking effect of good braking.
2, special-shaped sour jujube pad is provided with annular groove, and by inside and outside pad face separately, and ratchet on inside and outside pad face staggers mutually (15 degree stagger), has improved the strength and stiffness of sour jujube pad, also makes each ratchet stressed even as far as possible.
3, the present invention is simple in structure, with low cost, reliable lock, easy installation and removal.Applied widely, can realize all weather operations, greatly improve equipment operation benefits.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of this device.
Fig. 2 is the partial structurtes schematic diagram of kingbolt.
Fig. 3 is the end-face structure schematic diagram of special-shaped sour jujube pad.
Fig. 4 be in Fig. 2 A-A to partial structurtes schematic diagram.
Fig. 5 be in Fig. 2 B-B to partial structurtes schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, describe embodiments of the invention in detail.
As shown in Figure 1, special-shaped sour jujube pad described in the present embodiment locking securing means of interlocking comprises kingbolt 1, mother nut 2, ratchet pad 3 and locking nut 4, kingbolt 1 is provided with right-hand thread 11, one section of right-hand thread region near end on kingbolt 1 is also provided with left hand thread 12, and spiral shell footpath, the pitch of right-hand thread 11 and left hand thread 12 are identical; Mother nut 2 coordinates with right-hand thread 11, and locking nut 4 coordinates with left hand thread 12; Ratchet pad 3 is located between mother nut 2 and locking nut 4, and both ends of the surface are respectively equipped with the ratchet along the circumferential direction distributing, and the land 34 of ratchet is disposed radially.
In the present embodiment, rear corner surface 36 tail ends of last ratchet are connected with front edged surface 35 tail ends of a rear ratchet, and edged surface 35 tilts to ratchet inner side before ratchet, with the axial angle of ratchet pad be 3～5 °.
In the present embodiment, ratchet is divided into interior ratchet 31 and outer ratchet 32, and interior ratchet 31 is identical with outer ratchet 32 sense of rotation, between interior ratchet 31 and outer ratchet 32, is provided with annular groove 33.Angle C2 between adjacent outer ratchet 32 lands is 30 °, and the angle C1 between adjacent interior ratchet 31 lands and outer ratchet 32 lands is 15 °.
In the present embodiment, the projection of the ratchet sense of rotation of ratchet pad 3 both ends of the surface in the plane axial perpendicular to ratchet pad is contrary.
In the present embodiment, the hardness of ratchet pad 3 is greater than the hardness of mother nut 2 and locking nut 4.
Below describe working principle of the present invention in detail:
The special-shaped sour jujube pad locking securing means of interlocking for a kind of high ferro contact net as shown in Figure 1, comprises and mother nut that kingbolt is threaded togather and locking nut and embedding are clipped in the special-shaped ratchet pad between two nuts.Locking nut is identical with spiral shell footpath, the pitch of mother nut, and rotation direction is contrary.Kingbolt is carved with positive and negative two kinds of identical screw threads in locking section simultaneously, after mother nut is in place, puts into sour jujube pad, then counter-tightened locking nut.So structure, makes master, split nut become mutually " left-hand thread " or " locking " relation.The reverse pine that is mother nut moves back direction, is just the tightening direction that advances of locking nut; Otherwise, locking nut unclamp direction of retreat, be just also the direction of advance of tightening of mother nut.Safe and reliable this interlock of realizing of energy, special-shaped sour jujube is paving vital effect.As shown in Figure 2, sour jujube pad two sides is carved with that structure is identical, the ratchet of opposite direction, and the relief angle of ratchet is mild, anterior angle is precipitous, the angle C3 that the anterior angle of ratchet tilts towards ratchet inner side is 3～5 °, and the crown of formation is sharp, the nut end face hardness that quenching rear tooth point hardness contacts with it during much larger than work.Every of sour jujube pad is separated by annular groove, the inside and outside circle identical ratchet that distributes, but 15 degree that stagger mutually, to increase the Rigidity and strength of sour jujube pad, also make ratchet stressed more even.
During apparatus of the present invention work, the land of ratchet is all met the direction of unclamping facing to nut.Because ratchet hardness is greater than mother nut and locking nut, so after being subject to the extruding of mother nut and locking nut, ratchet can embed mother nut and locking nut end face to a certain extent, realize engaging to a certain degree with mother nut and locking nut.When mother nut is because of reasons such as vibrations, likely retreat while becoming flexible, just must drive sour jujube pad to reverse together, and the ratchet of sour jujube pad another side is also just being met facing to locking nut, like this, the reversion of sour jujube pad must drive again locking nut also to reverse, but locking nut just oppositely turns and tightens up when mounted, and the internal thread opposite direction of the internal thread of mother nut and locking nut, so now possible reversion only can make locking nut more tighten and advance, i.e. retreating of mother nut, what cause is more advancing of locking nut, so mother nut just cannot retreat loosening.This is due to structural reason, and the pine of mother nut moves back, and by the effect of sour jujube pad, suffers the prevention that locking nut is absolute.
Situation for locking nut, when locking nut is under nature, likely be rotated in the forward and retreat while becoming flexible, just must drive sour jujube pad forward together by sour jujube point, and the sour jujube point of sour jujube pad another side can drive also forward of mother nut, but mother nut be also early when mounted just forward tighten, so time mother nut want again forward just can not, so locking nut also can not be just under nature then is being become flexible.This is also due to structural reason, and the forward pine of locking nut moves back, and because of the effect of sour jujube pad, suffers the prevention of mother nut.
From the above mentioned, this device can either prevent the oppositely loosening of mother nut, also can prevent that the forward of locking nut is loosening simultaneously, improves the locking effect of equipment upper locking device, guarantees the security of operation of equipment.
But during the dismounting of this device, situation is just different, during dismounting, must first unclamp separately locking nut, when pine with wrench to locking nut by force forward turn, make locking nut towards loosening direction rotation, when stubborn power excessive, sour jujube pad just has small resiliently deformable, so locking nut will retreat slightly, continue the application of force, be out of shape more, retreat larger, so go down, locking nut has just unclamped, this process is " release ", artificial turning with spanner brute force, when device is when normally working, which type of vibration at one's discretion, all must not naturally to locking nut, cause the so large torsion that unclamps, be that mechanism can natural release.This is that than turning on general nut firmly, much bigger, therefore, this locking device is in use that overall safety is reliable because the effect of keeping out of ratchet point is unscrewed locking nut firmly.
Also it should be noted that, mother nut and locking nut tighten up the rear axial tension that all produces equidirectional on kingbolt, therefore the actual pulling force on bolt is the compound of two kinds of nut effects, this just can make mother nut design thinnerly, and locking nut has been locking braking action, can be thinner, thus, mechanism can try one's best lightly.
Again as shown in Figure 1: while installing and using, kingbolt is pierced in connected piece, the mother nut of screwing on reaches the normal Operating torque of GB and TB/T2075-2010 regulation, pack sour jujube pad into, oppositely be screwed into again locking nut, while twisting, with another, pull hand Bing and live mother nut (prevent mother nut be with pine), also make locking nut reach regulation moment.If the dismounting of this mechanism time is first revolved mother nut, be definitely to revolve motionlessly, twisting by force, only can twist off screw rod.After working specification dismounting, if each part is without obvious damage, reusable.Two nuts with after on the face being affixed with ratchet as just some impression or slight plucking, the soundness of being combined with sour jujube pad after only can increasing, can reuse more.
Claims (6)
1. the special-shaped sour jujube pad locking securing means of interlocking for a high ferro contact net, it is characterized in that: comprise kingbolt, mother nut, ratchet pad and locking nut, described kingbolt is provided with right-hand thread, one section of right-hand thread region near end on described kingbolt is also provided with left hand thread, the spiral shell footpath of described right-hand thread and left hand thread, pitch are identical, described mother nut coordinates with described right-hand thread, and described locking nut coordinates with described left hand thread; Described ratchet pad is located between described mother nut and locking nut, and described ratchet pad both ends of the surface are respectively equipped with the ratchet along the circumferential direction distributing, and the land of described ratchet is disposed radially.
2. the special-shaped sour jujube pad locking securing means of interlocking for a kind of high ferro contact net according to claim 1, is characterized in that: described ratchet anterior angle tilts towards ratchet inner side, with the axial angle of ratchet pad be 3～5 °.
3. the special-shaped sour jujube pad locking securing means of interlocking for a kind of high ferro contact net according to claim 2, it is characterized in that: described ratchet is divided into interior ratchet and outer ratchet, the sense of rotation of described interior ratchet and outer ratchet is identical, between interior ratchet and outer ratchet, is provided with annular groove.
4. the special-shaped sour jujube pad locking securing means of interlocking for a kind of high ferro contact net according to claim 3, is characterized in that: the angle between described adjacent outer ratchet land is 30 °, and the angle between described adjacent interior ratchet land and outer ratchet land is 15 °.
5. according to the special-shaped sour jujube pad locking securing means of interlocking for arbitrary described a kind of high ferro contact net in claim 1-4, it is characterized in that: the projection of the ratchet sense of rotation of described ratchet pad both ends of the surface in the plane axial perpendicular to ratchet pad is contrary.
6. according to the special-shaped sour jujube pad locking securing means of interlocking for arbitrary described a kind of high ferro contact net in claim 1-4, it is characterized in that: the land hardness of described ratchet pad is greater than the hardness of described mother nut and locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410497330.6A CN104196865A (en) | 2014-09-25 | 2014-09-25 | Anti-looseness interlocking and fastening device with irregularly-shaped ratchet pad for high-speed-rail contact net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410497330.6A CN104196865A (en) | 2014-09-25 | 2014-09-25 | Anti-looseness interlocking and fastening device with irregularly-shaped ratchet pad for high-speed-rail contact net |
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| CN104196865A true CN104196865A (en) | 2014-12-10 |
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| CN201410497330.6A Pending CN104196865A (en) | 2014-09-25 | 2014-09-25 | Anti-looseness interlocking and fastening device with irregularly-shaped ratchet pad for high-speed-rail contact net |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240380A (en) * | 2015-09-29 | 2016-01-13 | 玉环胜友工具有限公司 | Unidirectional rotation structure used for looseness preventing mechanical fastening mechanism |
| CN105257665A (en) * | 2015-09-29 | 2016-01-20 | 玉环胜友工具有限公司 | Self-tightening multi-screw-pair anti-loose mechanical fastening mechanism |
| CN105257667A (en) * | 2015-09-29 | 2016-01-20 | 玉环胜友工具有限公司 | Looseness-proof machinery fastening mechanism |
| CN107143568A (en) * | 2017-04-14 | 2017-09-08 | 廖华勇 | Many reciprocal retaining mechanisms of nut |
| CN107846110A (en) * | 2016-09-20 | 2018-03-27 | 西门子公司 | tool locating structure, decoder, encoder and motor |
| CN108533600A (en) * | 2018-06-10 | 2018-09-14 | 汪友根 | A kind of positive and negative silk tooth nut structure |
| CN110985509A (en) * | 2019-12-31 | 2020-04-10 | 封国玉 | Double-nut same-diameter positive and negative bidirectional composite thread anti-loose and anti-theft self-locking bolt |
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| GB191213964A (en) * | 1912-06-15 | 1912-11-21 | Hermann Frank | Improvements in Nut-locks. |
| US1557361A (en) * | 1925-07-23 | 1925-10-13 | Grimm Jesse | Nut lock |
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| US1557361A (en) * | 1925-07-23 | 1925-10-13 | Grimm Jesse | Nut lock |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240380A (en) * | 2015-09-29 | 2016-01-13 | 玉环胜友工具有限公司 | Unidirectional rotation structure used for looseness preventing mechanical fastening mechanism |
| CN105257665A (en) * | 2015-09-29 | 2016-01-20 | 玉环胜友工具有限公司 | Self-tightening multi-screw-pair anti-loose mechanical fastening mechanism |
| CN105257667A (en) * | 2015-09-29 | 2016-01-20 | 玉环胜友工具有限公司 | Looseness-proof machinery fastening mechanism |
| CN105240380B (en) * | 2015-09-29 | 2018-04-13 | 玉环胜友工具有限公司 | One-directional rotation structure for anti-loose mechanical retention mechanism |
| CN105257665B (en) * | 2015-09-29 | 2018-05-25 | 玉环胜友工具有限公司 | The anti-loose mechanical retention mechanism of the more screw pairs of self-tightening type |
| CN105257667B (en) * | 2015-09-29 | 2018-05-25 | 玉环胜友工具有限公司 | Anti-loose machinery retention mechanism |
| CN107846110A (en) * | 2016-09-20 | 2018-03-27 | 西门子公司 | tool locating structure, decoder, encoder and motor |
| CN107143568A (en) * | 2017-04-14 | 2017-09-08 | 廖华勇 | Many reciprocal retaining mechanisms of nut |
| CN108533600A (en) * | 2018-06-10 | 2018-09-14 | 汪友根 | A kind of positive and negative silk tooth nut structure |
| CN110985509A (en) * | 2019-12-31 | 2020-04-10 | 封国玉 | Double-nut same-diameter positive and negative bidirectional composite thread anti-loose and anti-theft self-locking bolt |
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Application publication date: 20141210 |