CN204055420U - Railway contact line intermediate joint of busbar - Google Patents

Railway contact line intermediate joint of busbar Download PDF

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Publication number
CN204055420U
CN204055420U CN201420536633.XU CN201420536633U CN204055420U CN 204055420 U CN204055420 U CN 204055420U CN 201420536633 U CN201420536633 U CN 201420536633U CN 204055420 U CN204055420 U CN 204055420U
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CN
China
Prior art keywords
screw
thread
clamping plate
screw thread
bolt
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Active
Application number
CN201420536633.XU
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Chinese (zh)
Inventor
陆佳
张亮
张敏
王旭
李东升
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China Railway Construction Electrification Bureau Group Rail Transit Equipment Co Ltd
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China Railway Construction Electrification Bureau Group Rail Transit Equipment Co Ltd
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Application filed by China Railway Construction Electrification Bureau Group Rail Transit Equipment Co Ltd filed Critical China Railway Construction Electrification Bureau Group Rail Transit Equipment Co Ltd
Priority to CN201420536633.XU priority Critical patent/CN204055420U/en
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Publication of CN204055420U publication Critical patent/CN204055420U/en
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Abstract

The utility model relates to the technical field of Highspeed Catenary, especially a kind of railway contact line intermediate joint of busbar, overcome the problem easily loosened in frequent impact situation between existing contact system bus duct, scheme is: this center coupling has a pair point and is located at the screw thread clamping plate connecting two bus ducts in the double wall of bus duct both sides, with bolt screw thread clamping plate two ends fixed with two bus ducts respectively through the hole on bus duct, mounting hole on screw thread clamping plate has the unthreaded hole section of the contraction of oral area and the thread segment of bottom, center coupling also there is ring-type inside and outside be all the steel screw collar of screw thread, the outside thread of screw collar is suitable for the thread segment being screwed into screw thread clamping plate, the negative thread of screw collar is suitable for being screwed into of bolt, the internal diameter of the unthreaded hole section that screw thread clamping plate shrink is greater than the spiral shell footpath of bolt, center coupling also has the plain cushion being enclosed within and bolt being positioned at outside bus duct hole.

Description

Railway contact line intermediate joint of busbar
Technical field
The utility model relates to the technical field of Highspeed Catenary, especially a kind of railway contact line intermediate joint of busbar.
Background technology
In recent years, along with socioeconomic fast development, railway traffic being had higher requirement, in order to adapt to the continuous speed-raising of railway under the new situation, also elements of contacting net being had higher requirement in technical requirements.
Along with the increase of the time of putting into effect, and rate of traffic flow is more and more higher, and the contact of pantograph and shock pressure stack power in shuttle trffic process, impacts without the rigid suspended of Uplifting amount, needs whole contact net system autodigestion.
Clamping contact line be the bus duct of segmentation, the shape of cross section of bus duct is as accompanying drawing 1, there is the double wall of both sides, the jaws of clamping contact wire is arranged at bottom, the center coupling connecting segmentation bus duct is the position the most easily occurring degree of speeding in whole system, center coupling main body is the screw thread clamping plate of a pair connection, two bus ducts, two screw thread clamping plate to set up separately two bus ducts in the double wall of both sides by Bolt Connection, bolt is screwed in the tapped through hole of screw thread clamping plate through the hole on double wall, because bolt is steel part, and screw thread clamping plate are conduction aluminum component, both hardness are different, expansion and contraction is different, bus duct connection part is in the process of digestion pantograph impact, there is sliding dental phenomenon in this thread connection form of center coupling, whole suspension parts are caused to loosen, thus very large threat is caused to the safety of tractive power supply system.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of center coupling, makes the connection between contact system bus duct reliable all the time.
The utility model solves the technical scheme that its technical matters adopts: a kind of railway contact line intermediate joint of busbar, there is a pair point and be located at the screw thread clamping plate connecting two bus ducts in the double wall of bus duct both sides, with bolt screw thread clamping plate two ends fixed with two bus ducts respectively through the hole on bus duct, mounting hole on described screw thread clamping plate has the unthreaded hole section of the contraction of oral area and the thread segment of bottom, described center coupling also there is ring-type inside and outside be all the steel screw collar of screw thread, the outside thread of described screw collar is suitable for the thread segment being screwed into screw thread clamping plate, the negative thread of screw collar is suitable for being screwed into of bolt, the internal diameter of the unthreaded hole section that described screw thread clamping plate shrink is greater than the spiral shell footpath of bolt, described center coupling also has the plain cushion being enclosed within and bolt being positioned at outside bus duct hole.
For the ease of using the bolt of standard specification, on described screw thread clamping plate, the thread segment of mounting hole is minus thread, and the outside thread of described screw collar is minus thread, and the negative thread of described screw collar is right-hand screw thread.
It should be noted that: when producing this center coupling in enormous quantities, also screw collar can be made tap bolt, thread segment on such screw thread clamping plate is only processed into unthreaded hole in advance, follow-up direct for screw collar self tapping to be screwed into, this is with aforesaid to have thread segment be same technological means, under normal circumstances, no matter is that concrete form, the screw collar of this center coupling all just can be screwed into screw thread clamping plate when Workshop Production, in an automated fashion to reduce field activity amount.
In order to improve length of thread engagement (LE), increase tightness, better prevent from loosening, the length of described screw collar equals the degree of depth of described thread segment.
Be screwed into screw thread clamping plate for the ease of screw collar, the oral area of described screw collar has and is screwed into groove, this groove structure can be suitable for screwdriver, also can be suitable for automatic jig.
The beneficial effects of the utility model are: center coupling of the present utility model owing to adopting steel screw collar between screw thread clamping plate and binding bolt, ensure that the connection of bus duct is reliable, specifically: the fastening force on the screw thread clamping plate that to be screw collar distributed equalization relatively soft suffered by screw thread, have that linking intensity is high, antidetonation, shock resistance and anti abrasive function; If two be repair time only need change screw collar and screw thread clamping plate need not be changed; Three is utilize the step between thread segment and unthreaded hole section, can improve fastening force.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is using state cross sectional representation of the present utility model;
Fig. 2 is the front view of the utility model screw thread clamping plate;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the front view of the utility model screw collar;
Fig. 5 is Fig. 4 is birds-eye view.
In figure: 1. bus duct, 1-1. double wall, 1-2. hole, 2. screw thread clamping plate, 2-1. thread segment, 2-2. unthreaded hole section, 3. bolt, 4. screw collar, 4-1. is screwed into groove, 5. plain cushion, 6. contact wire.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now.
A kind of railway contact line intermediate joint of busbar, as accompanying drawing 1, there is a pair point and be located at the screw thread clamping plate 2 connecting two bus ducts 1 in the double wall 1-1 of bus duct 1 both sides, with the bolt 3 screw thread clamping plate 2 two ends fixed with two bus ducts 1 respectively through the hole 1-2 on bus duct 1, as accompanying drawing 2,3, mounting hole on screw thread clamping plate 2 has the unthreaded hole section 2-2 of the contraction of oral area and the thread segment 2-1 of bottom, the concrete mode of accompanying drawing 2 is mounting holes is 8, then the hole 1-2 of connected bus duct 1 end is 4.
Center coupling also there is ring-type inside and outside be all the steel screw collar 4 of screw thread, as accompanying drawing 4,5, the outside thread of screw collar 4 is suitable for the thread segment 2-1 being screwed into screw thread clamping plate 2, and the negative thread of screw collar 4 is suitable for being screwed into of bolt 3.
As on accompanying drawing 1 and accompanying drawing 3, for making screw thread clamping plate 2 and bus duct 1 have good electrical contact, screw thread clamping plate 2 are also provided with some convex tendons.
The internal diameter of unthreaded hole section 2-2 that screw thread clamping plate 2 shrink is greater than the spiral shell footpath of bolt 3, and center coupling also has the plain cushion 5 being enclosed within and bolt 3 being positioned at outside bus duct 1 hole 1-2;
A set of center coupling is like this then comprise 2 two, screw thread clamping plate, each eight of screw collar 4, bolt 3 and plain cushion 5.
On screw thread clamping plate 2 in this detailed description of the invention, the thread segment 2-1 of mounting hole is minus thread, the outside thread of screw collar 4 is minus thread, the negative thread of described screw collar 4 is right-hand screw thread, concrete size aspect, the outside thread of screw collar 4 is M14, the negative thread of screw collar 4 is M10, and the length of screw thread clamping plate 2 is 400 millimeters.
Most preferred scheme is the degree of depth that the length of screw collar 4 equals thread segment 2-1.
As in accompanying drawing 4, the oral area of screw collar 4 has and is screwed into groove 4-1, is screwed into groove 4-1 and is suitable for the yi word pattern that slotted point screwdriver is screwed into.

Claims (4)

1. a railway contact line intermediate joint of busbar, there is a pair point and be located at the screw thread clamping plate (2) connecting two bus ducts (1) in bus duct (1) both sides double wall (1-1), with the bolt (3) screw thread clamping plate (2) two ends fixed with two bus ducts (1) respectively through the hole (1-2) on bus duct (1), it is characterized in that: the mounting hole on described screw thread clamping plate (2) has the unthreaded hole section (2-2) of the contraction of oral area and the thread segment (2-1) of bottom, described center coupling also there is ring-type inside and outside be all the steel screw collar (4) of screw thread, the outside thread of described screw collar (4) is suitable for the thread segment (2-1) being screwed into screw thread clamping plate (2), the negative thread of screw collar (4) is suitable for being screwed into of bolt (3), the internal diameter of the upper unthreaded hole section (2-2) of shrinking of described screw thread clamping plate (2) is greater than the spiral shell footpath of bolt (3), described center coupling also has to be enclosed within bolt (3) and is positioned at bus duct (1) hole (1-2) plain cushion outward (5).
2. railway contact line intermediate joint of busbar according to claim 1, it is characterized in that: the thread segment (2-1) of the upper mounting hole of described screw thread clamping plate (2) is minus thread, the outside thread of described screw collar (4) is minus thread, and the negative thread of described screw collar (4) is right-hand screw thread.
3. railway contact line intermediate joint of busbar according to claim 1, is characterized in that: the length of described screw collar (4) equals the degree of depth of described thread segment (2-1).
4. railway contact line intermediate joint of busbar according to claim 1, is characterized in that: the oral area of described screw collar (4) has and is screwed into groove (4-1).
CN201420536633.XU 2014-09-17 2014-09-17 Railway contact line intermediate joint of busbar Active CN204055420U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420536633.XU CN204055420U (en) 2014-09-17 2014-09-17 Railway contact line intermediate joint of busbar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420536633.XU CN204055420U (en) 2014-09-17 2014-09-17 Railway contact line intermediate joint of busbar

Publications (1)

Publication Number Publication Date
CN204055420U true CN204055420U (en) 2014-12-31

Family

ID=52196989

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420536633.XU Active CN204055420U (en) 2014-09-17 2014-09-17 Railway contact line intermediate joint of busbar

Country Status (1)

Country Link
CN (1) CN204055420U (en)

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