CN108999038A - A kind of dedicated check washer of railway spike - Google Patents

A kind of dedicated check washer of railway spike Download PDF

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Publication number
CN108999038A
CN108999038A CN201810969698.6A CN201810969698A CN108999038A CN 108999038 A CN108999038 A CN 108999038A CN 201810969698 A CN201810969698 A CN 201810969698A CN 108999038 A CN108999038 A CN 108999038A
Authority
CN
China
Prior art keywords
check washer
spike
spring
shaped
dedicated
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.)
Pending
Application number
CN201810969698.6A
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Chinese (zh)
Inventor
蔡小华
何竞飞
谢阳
车吉星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Central South University
Original Assignee
Central South University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Central South University filed Critical Central South University
Priority to CN201810969698.6A priority Critical patent/CN108999038A/en
Publication of CN108999038A publication Critical patent/CN108999038A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00Fastening rails on sleepers, or the like
    • E01B9/68Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair

Abstract

Loosen gasket the invention discloses a kind of railway spike is dedicated, the structure of the check washer is U-shaped thin plate, upper part is stamped with several concentric knuckle-tooth, its underpart is stamped with U-shaped arc groove, it is placed between screw spike head and spring, effectively prevent the sliding by the contact position on screw spike head when transverse load and the contact surface at the top of spring, to avoid screw spike from generating unwinding under moment of reaction effect, i.e., entire non-fragment orbit fastener system is difficult to loosen under train operation vertical and horizontal dynamic load effect.

Description

A kind of dedicated check washer of railway spike
Technical field
The present invention relates to a kind of dedicated check washers of railway spike, in non-fragment orbit fastener system, be in screw spike with It is a kind of special washer for preventing screw spike from loosening under the various vertical and horizontal dynamic load effects of train between spring.
Background technique
As shown in Figure 1, conventional non-fragment orbit fastener system includes: screw spike 2, flat shim 3, spring 4, rail lower gasket group 5 and pre-buried threaded sleeve 6, screw spike 2 be screwed into pre-buried threaded sleeve 6, by flat shim 3 compress spring 4, to withhold Rail 1.
About 3 flat shim is plane, is anchor ring with 2 head interface of screw spike, is with 4 top surface contact surface of spring U-shaped line, in train operation vertical and horizontal dynamic loading F1Under effect, the contact surface on screw spike 2 head and flat shim 3, spring 4 The U-shaped contact line of top and flat shim 3 is easy sliding;Since screw spike 2 is pre- next, there are the moment of reaction, spiral channels Nail 2 generates unwinding under moment of reaction effect, until relaxation.
Therefore, the contact condition for how improving flat shim 3 and 2 head of screw spike and 4 top of spring, avoids by lateral load The contact surface or contact line at flat shim 3 and 2 head of screw spike and 4 top of spring are also easy to produce sliding when lotus, avoid spiral channel Nail 2 generates unwinding under moment of reaction effect, improves non-fragment orbit fastener system anti-loosing effect, it is ensured that train operating safety, It is a technical problem urgently to be resolved.
Summary of the invention
To solve the problems, such as above-mentioned background technique, the purpose of the present invention is to provide a kind of dedicated locking pads of railway spike Piece is effectively prevented by the contact at the top of spring with the contact position on screw spike head and the gasket of gasket when transverse load Good anti-loose effect is played in the sliding in face.
In order to achieve the above objectives, technical scheme is as follows:
A kind of dedicated check washer of railway spike, the structure of the check washer are U-shaped thin plate, and upper part is stamped with several concentric Knuckle-tooth, its underpart are stamped with U-shaped arc groove.
Preferably, the check washer is placed between screw spike head and spring, several concentric knuckle-tooth of upper part It is close at the top of embeddable screw spike head annulus bottom surface under stress, the U-shaped arc groove of its underpart and the U-shaped round bar of spring Occlusion.
Through the above technical solutions, the dedicated check washer of a kind of railway spike provided by the invention, the check washer are placed in spiral shell Revolve between road nail head and spring, effectively prevent contact position by check washer when transverse load and screw spike head and The sliding of contact surface at the top of the check washer and spring is moved back so that screw spike be avoided to generate under moment of reaction effect Around that is, entire non-fragment orbit fastener system is difficult to loosen under train operation vertical and horizontal dynamic load effect.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the non-fragment orbit fastener system figure that flat shim is used in background technique;
Fig. 2 is a kind of cross-sectional view of the dedicated check washer of railway spike of the present invention;
Fig. 3 is a kind of top view of the dedicated check washer of railway spike of the present invention;
Fig. 4 is a kind of bottom view of the dedicated check washer of railway spike of the present invention;
Fig. 5 is using a kind of non-fragment orbit fastener system figure of the dedicated check washer of railway spike of the present invention;
Fig. 6 is system dynamics simulation result;
Fig. 7 is cross-sectional view when a kind of side in concentric knuckle-tooth towards the center of circle of the dedicated check washer of railway spike of the present invention is vertical;
Bottom view when Fig. 8 is setting U-shaped groove in a kind of U-shaped arc groove of the dedicated check washer of railway spike of the present invention.
Marked in the figure: 1, rail, 2, screw spike, 3, flat shim, 4, spring, 5, rail lower gasket group, 6, pre-buried thread bush Pipe, 7, check washer, 8, concentric knuckle-tooth, 9, U-shaped arc groove, 10, U-shaped groove.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, implements to be to the present invention below Explanation and the invention is not limited to following embodiments.
The present invention is for a kind of check washer between screw spike head and spring top, is a kind of various in train Check washer all difficult to slide under vertical and horizontal dynamic load effect, therefore specific embodiment is with a kind of dedicated locking pad of railway spike Piece is illustrated.
The present invention provides a kind of dedicated check washer of railway spike, and as shown in figs. 2 to 4, the structure of the check washer 7 is U-shaped Sheet metal, upper part are stamped with several concentric knuckle-tooth 8, and its underpart is stamped with U-shaped arc groove 9.
Referring to Fig. 5, the check washer 7 is placed between 2 head of screw spike and spring 4, upper part it is several with one heart Knuckle-tooth 8 is embedded in 2 head annulus bottom surface of screw spike under stress, the U-shaped arc groove 9 of its underpart just with the U-shaped round steel of spring 4 Top rib portion is closely engaged, and effectively prevents contact position and locking pad by check washer 7 when transverse load and 2 head of screw spike The sliding of the contact surface at 4 top of piece 7 and spring, generates unwinding under moment of reaction effect so as to avoid screw spike 2, i.e., Entire non-fragment orbit fastener system is difficult to loosen under train operation vertical and horizontal dynamic loading F1 effect, referring to the system of Fig. 6 Dynamical simulation results show the nothing using the non-fragment orbit fastener system (referring to Fig. 5) of check washer 7 than using flat shim 3 The anti-loosening property of tiny fragments of stone, coal, etc. rail clip system (referring to Fig. 1) improves 30 times, and holding does not loosen persistently.
Referring to Fig. 7, the side of concentric knuckle-tooth 8 towards center of circle side is vertical with check washer 7, and it is horizontal to enhance concentric knuckle-tooth 8 The endurance in direction, convenient for preventing check washer 7 by sliding when transverse load.
Referring to Fig. 8, if being provided with arterial highway U-shaped groove 10 disposed in parallel in U-shaped arc groove 9, enhance U-shaped arc groove 9 with Bite force at the top of the U-shaped round bar of spring 4.
In addition, it should be noted that, described in the invention is used for a kind of dedicated check washer embodiment of railway spike, but not It is confined to this embodiment.Shape, named title of other various bolt screw connection anti-loose gaskets etc. can be different, this specification Described in content be only illustration made for the present invention.Construction, spy described in all inventional ideas according to the present invention The equivalence changes that sign and principle are done, are included within the scope of protection of the patent of the present invention.The related technical personnel of this field, Easily according to examples detailed above, spirit of the invention is understood, and make each variation of different amplifications, but without departing from the present invention Structure or beyond the scope defined by this claim, all within the scope of the present invention.

Claims (4)

1. a kind of dedicated check washer of railway spike, which is characterized in that the structure of the check washer is U-shaped thin plate, upper part punching press There are several concentric knuckle-tooth, its underpart is stamped with U-shaped arc groove.
2. the dedicated check washer of a kind of railway spike according to claim 1, which is characterized in that the check washer is placed in spiral shell It revolves between road nail head and spring, several concentric knuckle-tooth of upper part embeddable screw spike head annulus bottom surface under stress, It is closely engaged at the top of the U-shaped arc groove of its underpart and the U-shaped round bar of spring.
3. the dedicated check washer of a kind of railway spike according to claim 1, which is characterized in that the concentric knuckle-tooth is towards the center of circle The side of side is vertical with check washer.
4. the dedicated check washer of a kind of railway spike according to claim 1, which is characterized in that setting in the U-shaped arc groove If there is arterial highway U-shaped groove disposed in parallel.
CN201810969698.6A 2018-08-23 2018-08-23 A kind of dedicated check washer of railway spike Pending CN108999038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810969698.6A CN108999038A (en) 2018-08-23 2018-08-23 A kind of dedicated check washer of railway spike

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810969698.6A CN108999038A (en) 2018-08-23 2018-08-23 A kind of dedicated check washer of railway spike

Publications (1)

Publication Number Publication Date
CN108999038A true CN108999038A (en) 2018-12-14

Family

ID=64592841

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810969698.6A Pending CN108999038A (en) 2018-08-23 2018-08-23 A kind of dedicated check washer of railway spike

Country Status (1)

Country Link
CN (1) CN108999038A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1006102A (en) * 1961-06-26 1965-09-29 Margarete Hermanus Locking devices for threaded connections
CN204080551U (en) * 2014-05-28 2015-01-07 申书达 The special Anti-rotating grommet of railway elastic bar
CN104747575A (en) * 2013-12-26 2015-07-01 江苏金三力机械制造有限公司 Connecting piece for shearing machine
CN105090223A (en) * 2015-07-20 2015-11-25 同济大学 High-strength bolt connection method and plate-type friction reinforced gasket structure for same
CN207750354U (en) * 2017-11-08 2018-08-21 江苏飞博尔新材料科技有限公司 A kind of glass fiber reinforcement high-strength epoxy nut

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1006102A (en) * 1961-06-26 1965-09-29 Margarete Hermanus Locking devices for threaded connections
CN104747575A (en) * 2013-12-26 2015-07-01 江苏金三力机械制造有限公司 Connecting piece for shearing machine
CN204080551U (en) * 2014-05-28 2015-01-07 申书达 The special Anti-rotating grommet of railway elastic bar
CN105090223A (en) * 2015-07-20 2015-11-25 同济大学 High-strength bolt connection method and plate-type friction reinforced gasket structure for same
CN207750354U (en) * 2017-11-08 2018-08-21 江苏飞博尔新材料科技有限公司 A kind of glass fiber reinforcement high-strength epoxy nut

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Application publication date: 20181214