CN207793766U - A kind of steel rail vibration reduction fastener bottom plate - Google Patents
A kind of steel rail vibration reduction fastener bottom plate Download PDFInfo
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- CN207793766U CN207793766U CN201720623209.2U CN201720623209U CN207793766U CN 207793766 U CN207793766 U CN 207793766U CN 201720623209 U CN201720623209 U CN 201720623209U CN 207793766 U CN207793766 U CN 207793766U
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Abstract
A kind of steel rail vibration reduction fastener bottom plate, including bottom plate are disclosed herein；Positioning column is provided on the bottom plate, the positioning column is used to run through locating piece to be installed, and for connecting fastening mechanism with the fixation locating piece；The application can be applied to field of track traffic, can effectively solve the problem that problems of the prior art using the application, can realize the convenient installation operation of locating piece；Further, additionally it is possible to optimize the composition of existing steel rail vibration reduction fastener, can realize that more easily installation maintenance operates.
Description
Technical field
This application involves but be not limited to field of track traffic, especially a kind of steel rail vibration reduction fastener bottom plate.
Background technology
In recent years, it with the fast development with subway, inter-city passenger rail etc. for the Rail Transit System of representative, effectively alleviates
The nervous situation of urban transportation, and at the same time, vibration that these modes of transportation are brought, noise pollution also give the production of people to give birth to
Work brings very big puzzlement.Rail fastening is playing the same of fixed rail function as the connecting component between rail and sleeper
When, vibration and noise reducing function is also increasingly valued by people.
Currently, being proposed a series of rail fastening products with vibration and noise reducing function in the market.And subtract numerous
It shakes in fastener product, it is a kind of rail to be clamped to the Damping fastening lifted from rail both sides there is higher effectiveness in vibration suppression, and can
To conveniently realize the dismounting and change of parts, therefore widely applied, it is deep to be favored by market.
The Damping fastening design for lifting rail is clamped from both sides in order to realize, it is public in the numerous patents of ZL00810625.8
Multiple technologies scheme is opened；Wherein, these disclosed prior arts are：Rail both sides are equipped with elastomer, pass through support construction
The rail both sides that elastomer is clamped have the shoulder arrangement of protrusion on bottom plate, there is locating piece between support construction and shoulder block, fixed
Support construction is positioned and the clamping force for clamping rail is transmitted on the shoulder arrangement of bottom plate by position block.
The above-mentioned prior art gives full play to the cutting performance of rail two-side elastic body so that this kind of fastener has higher subtract
It shakes effect.However, there is also following deficiencies in the long-term use：
1, in order to fix the support construction of support elastomer, the prior art is used is placed on support construction and bottom by locating piece
Design between plate shoulder block achieves the goal.But track Damping fastening is a long lifespan, service life is long, safeguard at
This high track product；The prior art in the long-term use, due to train wheel and rail continuous shock vibrate so that
Locating piece is gradually loosened and is moved upwards, and is eventually led to and is occurred between locating piece and elastomer support structure, bottom plate shoulder block
It detaches and pops up, a whole set of fastener system is caused to fail；Fastener system forfeiture is caused to support and fix ability to rail, there are rows
Vehicle security risk.
2, fastener system in the prior art needs the pressue device using speciality, such as by hydraulic jack to elastomer
Support construction applies certain pressure, to ensure that elastomer clamps rail.However, as above problem occurrence frequency increases, track
Maintenance and Repair workload and fund input greatly increase；Especially rail transportation operation circuit, operation is very busy,
Stop normal operation to carry out railway maintenance being unpractical；Of short duration operation interval can only be relied on to carry out repair and maintenance；
Therefore, it in practical operation, is not easy to operate since special pressue device is very heavy, construction personnel often uses its other party
Method such as strikes the problems such as locating piece pressure is pounded into positioning, cause fastener damage of components, dimensional discrepancy in the course of time by the method for pounding, instead
And the development of problem described in 1 is exacerbated, form vicious circle.
Utility model content
The technical issues of the application solves is to provide a kind of steel rail vibration reduction fastener bottom plate, can effectively solve the problem that in the prior art
There are the problem of, can realize the convenient installation operation of locating piece；Further, additionally it is possible to optimize existing steel rail vibration reduction fastener
Composition can realize that more easily installation maintenance operates.
In order to solve the above technical problems, this application provides a kind of steel rail vibration reduction fastener bottom plate, including bottom plate；
Positioning column is provided on the bottom plate, the positioning column is used to run through locating piece to be installed, and for connecting
Retention mechanism is with the fixation locating piece.
Above-mentioned steel rail vibration reduction fastener bottom plate can also have following features,
The retention mechanism includes fastener and locking cover board, and the fastener is connect with the positioning column, the fastening
Part compresses the locating piece by the locking cover board.
Above-mentioned steel rail vibration reduction fastener bottom plate can also have following features,
The fastener includes screw bolt and nut, and the second through-hole, the head card of the bolt are offered on the positioning column
Tightly on the bottom end outer of second through-hole, the threaded shank of the bolt wears second through-hole, and end extends to institute
State the top of positioning column；
The nut is bolted with described, and the lower surface of the nut compresses the locking cover board.
Above-mentioned steel rail vibration reduction fastener bottom plate can also have following features,
The fastener is bolt, and the top of the positioning column is provided with internal thread；
The bolt wears the locking cover board and is tightened on the internal thread of the positioning column.
Above-mentioned steel rail vibration reduction fastener bottom plate can also have following features,
The fastener is nut, and the top of the positioning column is provided with external screw thread；
The nut is tightened on the outer bolt of the positioning column, and the lower surface of the nut compresses the locking lid
Plate.
Above-mentioned steel rail vibration reduction fastener bottom plate can also have following features,
Third through-hole is provided on the bottom plate, the third through-hole wears for anchor bolt and is fixed on the bottom plate
On track foundation.
Above-mentioned steel rail vibration reduction fastener bottom plate can also have following features,
The fastener is anchor bolt, and the second through-hole is offered on the positioning column；
The anchor bolt wears the locking cover board successively, the locating piece is fixed on the bottom by second through-hole
On plate, and the bottom plate is fixed on track foundation.
Above-mentioned steel rail vibration reduction fastener bottom plate can also have following features,
At least two positioning columns are provided on the bottom plate, the positioning column is arranged in the both sides of the bottom plate.
Above-mentioned steel rail vibration reduction fastener bottom plate can also have following features,
Limit shoulder block is additionally provided on the bottom plate, the limit shoulder block, which is arranged, deviates from the one of rail in the positioning column
Side.
Above-mentioned steel rail vibration reduction fastener bottom plate can also have following features,
At least two limit shoulder blocks are provided on the bottom plate, the limit shoulder block is arranged in the both sides of the bottom plate.
The application above-mentioned technical proposal has the advantages that：
Compared with the prior art, the utility model can coordinate the use of locating piece by the setting of above-mentioned positioning column, can
Rail is applied to the cross force of support plate, located piece is transferred at positioning column；Above-mentioned positioning column can be integrated with bottom plate
Design, and then effective carrying of above-mentioned cross force can be integrally realized by bottom plate and positioning column.
Further, the utility model can also be by the setting of above-mentioned limit shoulder block, can be by the cross force of rail application
By support plate, locating piece, it is transferred at limit shoulder block；That is, effectively holding for cross force can be realized by above-mentioned limit shoulder block
It carries；By the setting of above-mentioned limit shoulder block, the whole structural stability in the process of running of fastener system can be effectively improved.
Other features and advantage will illustrate in the following description, also, partly become from specification
It obtains it is clear that being understood by implementing the utility model embodiment.The purpose of the application and other advantages can by
Specifically noted structure is realized and is obtained in specification, claims and attached drawing.
Description of the drawings
Attached drawing is used for providing further understanding technical scheme, and a part for constitution instruction, with this
The embodiment of application is used to explain the technical solution of the application together, does not constitute the limitation to technical scheme.
Fig. 1 is the stereoscopic schematic diagram of one bottom plate of the utility model embodiment；
Fig. 2 is the perspective diagram of one bottom plate of the utility model embodiment；
Fig. 3 is the application schematic diagram one of one bottom plate of the utility model embodiment；
Fig. 4 is the application schematic diagram two of one bottom plate of the utility model embodiment；
Fig. 5 is the structural schematic diagram of the support plate in the utility model embodiment one；
Fig. 6 is the structural schematic diagram of the locating piece in the utility model embodiment one；
Fig. 7 is the structural schematic diagram of the locking cover board in the utility model embodiment one；
Fig. 8 is the structural schematic diagram of the coupling backing plate in the utility model embodiment one；
Fig. 9 is the application schematic diagram of two bottom plate of the utility model embodiment；
Figure 10 is the stereoscopic schematic diagram of three bottom plate of the utility model embodiment；
Figure 11 is the application schematic diagram of three bottom plate of the utility model embodiment；
Figure 12 is the application schematic diagram of four bottom plate of the utility model embodiment；
It illustrates：
1- bottom plates, cushion under 2- rails, 3- rail, 4 one elastomers, 5- support plates, 6-T type bolts, 7- lock cover board, 8-
Locating piece, 9- positioning columns, 10- limit shoulder block, and 11- couples backing plate, 12- anchor bolts, 13- nuts, 14- hex bolts, 101-
First side, 102- second sides, 103- annular step surfaces.
Specific implementation mode
Embodiments herein is described in detail below in conjunction with attached drawing.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application mutually can be combined arbitrarily.
Embodiment one：
In conjunction with shown in Fig. 1-Fig. 4, the utility model embodiment one provides a kind of steel rail vibration reduction fastener bottom plate, and application
The fastener system of above-mentioned steel rail vibration reduction fastener bottom plate.
Above-mentioned Damping fastening bottom plate includes bottom plate 1, positioning column 9 is may be provided on bottom plate 1, above-mentioned positioning column 9 is for running through
Locating piece 8 to be installed, and for connecting fastening mechanism with the fixation locating piece 8.
Above-mentioned fastener system may include bottom plate 1, elastomer 4, support plate 5, locating piece 8 and retention mechanism；On locating piece 8
First through hole is offered, locating piece 8 is set in the outside of positioning column 9 by first through hole；Wherein, above-mentioned locating piece 8 can be along fixed
Position column 9 carries out position sliding, you can to adjust the vertical position of locating piece 8；Above-mentioned positioning column 9 is preferably vertically arranged in bottom plate
On 1, i.e., locating piece 8 can be moved along the position of the progress vertical direction of positioning column 9.
In the present embodiment, above-mentioned retention mechanism includes fastener and locking cover board 7, and fastener is connect with positioning column 9, is fastened
Part compresses locating piece 8 by locking cover board 7；The side of support plate 5 is connect with elastomer 4, and elastomer 4 is fixed on rail 3
At the web of the rail, the other side of support plate 5 is resisted against on locating piece 8；Contact surface between support plate 5 and locating piece 8 is inclined-plane, inclined-plane
Top tilted to close to the side of rail 3.
In concrete operations, it can realize that position of the locating piece 8 on positioning column 9 is fixed by the setting of retention mechanism；
Support plate 5 can be enabled to be pressed to the movement of 3 side of rail by the contact of incline plane between above-mentioned support plate 5 and locating piece 8,
To effectively improve the structural stability of rail 3；One end of above-mentioned support plate 5 can realize position fixed operation by locating piece 8；
The other end of above-mentioned support plate 5 can firmly hold out against elastomer 4 in the web of the rail position of rail 3, to realize the clamping of rail 3
The technique effect lifted；Rail 3 can be applied to the cross force of support plate 5 by the setting of above-mentioned positioning column 9, through fixed
Position block 8 is transferred at positioning column 9；Above-mentioned positioning column 9 can be integrated design with bottom plate 1, and then can pass through bottom plate 1 and positioning column
The 9 whole effective carryings for realizing above-mentioned cross force.
In conjunction with shown in Fig. 3, Fig. 4：
In the present embodiment, above-mentioned fastener includes screw bolt and nut 13, and the second through-hole, spiral shell are offered on above-mentioned positioning column 9
The head of bolt is clamped on the bottom end outer of the second through-hole, and the threaded shank of bolt wears the second through-hole, and end extends to positioning
The top of column 9；Nut 13 be bolted, the lower surface of nut 13 compresses locking cover board 7；Between nut 13 and locking cover board 7
Gasket and spring washer can be set；Above-mentioned bolt is preferably the T-bolt 6 in illustrating, and above-mentioned T-bolt 6 is in handstand posture
Carry out installation operation.
In concrete operations, as shown in figure 3, before tightening T-bolt 6, the upper surface of locating piece 8 is high in the horizontal direction
In the upper surface of positioning column 9；During gradually tightening nut 13, locating piece 8 moves gradually downward, until locating piece 8
The upper surface flush of upper surface and positioning column 9；At this point, as shown in figure 4, the lower surface of locking cover board 7 is also pressed on positioning column 9
Upper surface, nut 13 reach tight condition.
Aforesaid operations aim at effectively tightening for nut 13；That is, if without positioning column 9, or locking cover board 7 does not have
It is close to the upper surface of positioning column 9, then nut 13 just can not be tightened really, when vibrating, nut 13 is likely to occur
It loosens, and then T-bolt 6 is caused to loosen, loosened so as to cause locating piece 8；According to said program, locking cover board 7 and positioning column 9
It is close to upper surface, it can be ensured that nut 13 is tightened, it is ensured that clamping screw and locating piece 8 do not loosen.
In concrete operations, the handstand of above-mentioned T-bolt 6 is arranged, and T-bolt 6 can be effectively prevent to extract upwards；It is positioning
Locking cover board 7 is placed in the top of block 8, and above locking cover board 7, spring washer can be arranged with accessories such as attaching nuts 13 by T-type spiral shell
Bolt 6 is tightened, to be locked between locating piece 8 and bottom plate 1.
In the present embodiment, above-mentioned fastener system further includes anchor bolt 12, and third through-hole is provided on bottom plate 1, anchors spiral shell
Bolt 12 wears third through-hole and bottom plate 1 is fixed on track foundation.In concrete operations, the setting of above-mentioned anchor bolt 12, bottom plate 1
It realizes and is bonded between track foundation；In addition, cushion 2 under rail, above-mentioned rail are arranged between above-mentioned bottom plate 1 and rail 3
The setting of lower cushion 2, can effectively improve the damping property of fastener entirety.
As shown in Figure 1, Figure 2：
Preferably, in order to effectively improving the structural stability of fastener system entirety；In the present embodiment, above-mentioned bottom plate 1
On be additionally provided with limit shoulder block 10, limit shoulder block 10 be arranged positioning column 9 deviate from rail side, locating piece 8 deviate from the branch
The side of fagging 5 is resisted against on the side of limit shoulder block 10.
In concrete operations, the setting of above-mentioned limit shoulder block 10, the cross force that can apply rail 3 passes through support plate 5, fixed
Position block 8 is transferred at limit shoulder block 10；That is, effective carrying of cross force can be realized by above-mentioned limit shoulder block 10；By upper
The setting for stating limit shoulder block 10 can effectively improve the whole structural stability in the process of running of fastener system.
Preferably, the first through hole sectional area of above-mentioned locating piece 8 is more than the sectional area of positioning column 9, is positioned after being installed in place
Column 9 can contact between locating piece 8 without position, and locating piece 8 is contacted away from the side of support plate 5 with limit shoulder block 10, can be incited somebody to action
Rail 3 is applied to the cross force of support plate 5, and the position of limit shoulder block 10 is transferred to by locating piece 8, and then can realize above-mentioned cross
Effective carrying to power.
In concrete operations, at least two positioning columns 9 are provided on above-mentioned bottom plate, positioning column 9 is arranged the two of above-mentioned bottom plate 1
Side, to meet the installation needs of the locating piece 8 positioned at rail both sides；Further, at least two are also equipped on above-mentioned bottom plate
Shoulder block 10 is limited, above-mentioned limit shoulder block 10 is arranged in the both sides of the bottom plate, to coordinate the above-mentioned locating piece 8 positioned at rail both sides
Limit need.
Referring to figs 5 and 6：
The first side 101 of support plate 5 is connected with each other with the second side 102 of locating piece 8,101 He of above-mentioned first side
Second side 102 constitutes the inclined-plane to contact with each other.
In concrete operations, this characteristic is tilted to close to the side of rail 3 based on the top on inclined-plane, as nut 13 is continuous
It tightens, downward movement occurs for locating piece 8；In turn, locating piece 8 can pass through the second side 102 of itself and the first of support plate 5
Side 101 interacts, and support plate 5 is pushed to be moved to 3 side of rail, occurs in the moving process elastomer 4 of support plate 5
Flexible deformation generates clamping force to rail 3, and then can realize being fixedly clamped for rail 3.
As shown in Figure 7：
In the present embodiment, the setting of above-mentioned locking cover board 7, it is intended to which attaching nut 13 tightens operation, in twisting for nut 13
During tight, locating piece 8 can effectively be compressed by locking cover board 7.
As shown in Figure 8：
In the present embodiment, the setting of above-mentioned coupling backing plate 11, it is intended to the rigidity between track foundation and bottom plate 1 be avoided to connect
It touches；In order to coordinate the attended operation of anchor bolt 12, offered on above-mentioned coupling backing plate 11 perforative logical for anchor bolt 12
Hole.
Preferably, in order to realize 3 clamping force of rail convenient adjusting operation；Above-mentioned fastener system further includes adjusting pad
Piece, adjust pad are set to the upper surface of locking cover board 7, and/or the lower surface of locking cover board 7.In the present embodiment, above-mentioned adjusting pad
Piece can be set to the lower surface of locking cover board 7.
In concrete operations, during long-term use, a degree of abrasion can occur Damping fastening for elastomer 4, into
And clamping force is caused to lose；When not reaching replacement and requiring, clamping of the fastener to rail 3 can be adjusted by the following method
Power：The nut 13 of clamping screw is unclamped, adjust pad is placed between locating piece 8 and locking cover board 7；In above-mentioned adjust pad
Through-hole can be set, the through-hole of screw bolt passes locating piece 8, the through-hole of adjust pad and after locking the through-hole of cover board 7, with spiral shell
Mother 13 tightens connection.
Compare non-mounting and adjusting gasket when, the distance that the locating piece 8 after above-mentioned mounting and adjusting gasket moves down will increase
Add, and then the distance that support plate 5 is moved to rail direction also accordingly increases, clamping force caused by elastomer 4 is worn is made up with this
Loss；Effective adjusting of 3 pretightning force of rail can be realized, based on the adjust pad of different-thickness to adapt to no track circuit
Design requirement.
It should be noted that the adjusting of above-mentioned rail pretightning force, it also can be by using the locking of different-thickness, different number
Cover board 7, or realized using without the locating piece 8 of thickness；The purpose of above-mentioned setting, it is intended to enable to support plate 5 towards steel
The further movement of rail with further compresses elastomeric 4, and then realizes the adjusting operation of the pretightning force of rail 3.
Embodiment two：
The utility model embodiment two provides a kind of steel rail vibration reduction fastener bottom plate, and agent structure is similar with embodiment one；
About the record of agent structure, the detailed record in previous embodiment one is referred to；It is intended to illustrate difference between the two herein.
As shown in Figure 9：
In the present embodiment, fastener is bolt, and the top of positioning column 9 is provided with internal thread；Bolt wears locking cover board and twists
Tightly on the internal thread of positioning column 9.Wherein, above-mentioned bolt can be the hex bolts 14 or other structures form in diagram
Bolt.
In concrete operations, above-mentioned positioning column 9 may be provided with pore structure, and internal surface of hole is provided with screw thread；When locating piece set
It is located at after 9 outside of positioning column, locking cover board can be arranged above locating piece, and by the threaded shank of hex bolts 14 through lock
Tight cover board, and tighten and connect with the internal thread opened up on positioning column 9, to realize that effective clamping of locating piece operates.
Embodiment three：
The utility model embodiment three provides a kind of steel rail vibration reduction fastener bottom plate, and agent structure is similar with embodiment one；
About the record of agent structure, the detailed record in previous embodiment one is referred to；It is intended to illustrate difference between the two herein.
In conjunction with shown in Figure 10, Figure 11：
In the present embodiment, fastener is nut 13, and the top of positioning column 9 is provided with external screw thread；Nut 13 is tightened in positioning
On the outer bolt of column 9, and the lower surface of nut 13 compresses locking cover board.Above-mentioned nut 13 can be common hex nut, or
The nut of other structures form.
In concrete operations, the external screw thread of certain length can be offered on the top of positioning column 9, when locating piece is set in positioning
After 9 outside of column, cover board setting can will be locked above locating piece, and the external screw thread that nut 13 and 9 top of positioning column are opened up
Connection is tightened, to realize that effective clamping of locating piece operates.
Further, in the present embodiment, above-mentioned positioning column 9 includes the cylindrical section of the thread segment and lower part on top, above-mentioned circle
The diameter of shell of column is more than the diameter of thread segment, has annular step surface 103 between above-mentioned cylindrical section and the contact surface of the end of thread.
In concrete operations, before not tightening clamping screw, locking cover board upper surface is higher than the annular step surface of positioning column 9
103 certain distances, the distance are got by calculating according to clamping force demand；During tightening clamping screw, locating piece
It moves down, and support plate is pushed to be moved to rail direction, the elastomer of rail both sides occurs flexible deformation simultaneously and compressed, steel
Rail is by certain clamping force effect.In addition, the adjusting of rail pretightning force, before also can tightening clamping screw by change, locking
The distance between cover board upper surface and the annular step surface 103 of positioning column 9 are realized.
Example IV：
The utility model embodiment four provides a kind of steel rail vibration reduction fastener bottom plate, and agent structure is similar with embodiment one；
About the record of agent structure, the detailed record in previous embodiment one is referred to；It is intended to illustrate difference between the two herein.
As shown in figure 12,
In the present embodiment, above-mentioned fastener is anchor bolt 12, and the second through-hole is offered on positioning column 9；Anchor bolt 12
Locking cover board is worn successively, locating piece is fixed on bottom plate, and secures a base plate on track foundation by the second through-hole.
In concrete operations, locating piece can be set in the outside of positioning column 9, and locking cover board is arranged in the upper of locating piece
Side；In turn, it after can anchor bolt 12 being worn to locking cover board, the second through-hole successively, and tightens and connect with track foundation；Above-mentioned anchor
After fixing bolt 12 is tightened with track foundation, locating piece can be effectively fixed on bottom plate, while bottom plate is also effectively fixed in rail
On the basis of road.
It should be noted that in the present embodiment, above-mentioned bottom plate is not provided with limit shoulder block, the transverse direction that above-mentioned rail applies
Power can be transferred to by support plate, locating piece on the positioning column on bottom plate.
One, embodiment two, embodiment three and example IV are it is found that the utility model can be by above-mentioned fixed in conjunction with the embodiments
The setting of position column, coordinates the use of locating piece, rail can be applied to the cross force of support plate, located piece is transferred to positioning
At column；Above-mentioned positioning column can be integrated design with bottom plate, and then can integrally realize above-mentioned cross force by bottom plate and positioning column
Effective carrying.
Further, the utility model can also be by the setting of above-mentioned limit shoulder block, can be by the cross force of rail application
By support plate, locating piece, it is transferred at limit shoulder block；That is, effectively holding for cross force can be realized by above-mentioned limit shoulder block
It carries；By the setting of above-mentioned limit shoulder block, the whole structural stability in the process of running of fastener system can be effectively improved.
In the description of the present application, term " installation ", " connected ", " connection ", " fixation " etc. shall be understood in a broad sense, example
Such as, " connection " may be fixed connection or may be dismantle connection, or integral connection；It can be directly connected, it can also
Indirectly connected through an intermediary.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in this application.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the application
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
Although those skilled in the art should be understood that the embodiment disclosed by the utility model embodiment is as above,
The content only the utility model embodiment and the embodiment that uses for ease of understanding, are not limited to the utility model
Embodiment.Technical staff in any the utility model embodiment fields, is taken off not departing from the utility model embodiment
Under the premise of the spirit and scope of dew, any modification and variation, but this practicality can be carried out in the form and details of implementation
The scope of patent protection of new embodiment, still should be subject to the scope of the claims as defined in the appended claims.
Claims (9)
1. a kind of steel rail vibration reduction fastener bottom plate, including bottom plate；It is characterized in that,
Positioning column is provided on the bottom plate, the positioning column is used to run through locating piece to be installed, and for connecting fastening
Mechanism with the fixation locating piece,
Wherein, the retention mechanism includes fastener and locking cover board, and the fastener is connect with the positioning column, the fastening
Part compresses the locating piece by the locking cover board.
2. steel rail vibration reduction fastener bottom plate according to claim 1, which is characterized in that
The fastener includes screw bolt and nut, and the second through-hole is offered on the positioning column, and the head of the bolt is clamped on
On the bottom end outer of second through-hole, the threaded shank of the bolt wears second through-hole, and end extend to it is described fixed
The top of position column；
The nut is bolted with described, and the lower surface of the nut compresses the locking cover board.
3. steel rail vibration reduction fastener bottom plate according to claim 1, which is characterized in that
The fastener is bolt, and the top of the positioning column is provided with internal thread；
The bolt wears the locking cover board and is tightened on the internal thread of the positioning column.
4. steel rail vibration reduction fastener bottom plate according to claim 1, which is characterized in that
The fastener is nut, and the top of the positioning column is provided with external screw thread；
The nut is tightened on the outer bolt of the positioning column, and the lower surface of the nut compresses the locking cover board.
5. the steel rail vibration reduction fastener bottom plate according to Claims 2 or 3 or 4, which is characterized in that
Third through-hole is provided on the bottom plate, the third through-hole wears for anchor bolt the bottom plate being fixed on track
On the basis of.
6. steel rail vibration reduction fastener bottom plate according to claim 1, which is characterized in that
The fastener is anchor bolt, and the second through-hole is offered on the positioning column；
The anchor bolt wears the locking cover board successively, the locating piece is fixed on the bottom plate by second through-hole
On, and the bottom plate is fixed on track foundation.
7. steel rail vibration reduction fastener bottom plate according to claim 1 or 2 or 3, which is characterized in that
At least two positioning columns are provided on the bottom plate, the positioning column is arranged in the both sides of the bottom plate.
8. steel rail vibration reduction fastener bottom plate according to claim 7, which is characterized in that
Limit shoulder block is additionally provided on the bottom plate, the side for deviating from rail in the positioning column is arranged in the limit shoulder block.
9. steel rail vibration reduction fastener bottom plate according to claim 8, which is characterized in that
At least two limit shoulder blocks are provided on the bottom plate, the limit shoulder block is arranged in the both sides of the bottom plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720623209.2U CN207793766U (en) | 2017-05-31 | 2017-05-31 | A kind of steel rail vibration reduction fastener bottom plate |
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| CN201720623209.2U CN207793766U (en) | 2017-05-31 | 2017-05-31 | A kind of steel rail vibration reduction fastener bottom plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924248A (en) * | 2019-12-06 | 2020-03-27 | 中铁一局集团新运工程有限公司 | Scattered nail coupling piece installation control device that spreads |
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2017
- 2017-05-31 CN CN201720623209.2U patent/CN207793766U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924248A (en) * | 2019-12-06 | 2020-03-27 | 中铁一局集团新运工程有限公司 | Scattered nail coupling piece installation control device that spreads |
| CN110924248B (en) * | 2019-12-06 | 2021-07-09 | 中铁一局集团新运工程有限公司 | Scattered nail coupling piece installation control device that spreads |
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