CN202098298U - Ball press-connecting type expansion joint of power supply rail - Google Patents
Ball press-connecting type expansion joint of power supply rail Download PDFInfo
- Publication number
- CN202098298U CN202098298U CN2011202034080U CN201120203408U CN202098298U CN 202098298 U CN202098298 U CN 202098298U CN 2011202034080 U CN2011202034080 U CN 2011202034080U CN 201120203408 U CN201120203408 U CN 201120203408U CN 202098298 U CN202098298 U CN 202098298U
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- CN
- China
- Prior art keywords
- rail
- sliding rail
- slide rail
- power supply
- ball
- Prior art date
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- Expired - Lifetime
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Abstract
A ball press-connecting type expansion joint of a power supply rail relates to a third rail technical field of urban railway system. A middle rail is arranged between a left sliding rail and a right sliding rail, clamping boards are respectively fixed on two sides of the middle rail, and bolt holes are respectively arranged at the left end and the right end of each clamping board. A left sliding rail long groove is arranged at the right end of the left sliding rail along length direction of the rail, and bolts are connected between the left sliding rail long groove and the bolt holes at the right end of the two clamping boards. A right sliding rail long groove is arranged at the left end of the right sliding rail along the length direction of the rail, and bolts are connected between the right sliding rail long groove and the bolt holes at the right end of the two clamping boards. Balls are respectively arranged on faces of the clamping boards opposite to the left sliding rail and the right sliding rail. The ball press-connecting type expansion joint of the power supply rail can not only clamp aluminum rails, but also enable the left sliding rail and the right sliding rail to freely slide on contact faces of the clamping boards along rail direction, thereby meeting the design requirement for extending amount of the left rail and the right rail, generating no resistance obstacles for preventing extending and ensuring power supply stability of urban railway system.
Description
Technical field
The utility model relates to the 3rd rail in the urban rail transit technology field, particularly urban track traffic---the technical field of power supply rail.
Background technology
Along with the increase of urban population and road traffic amount, urban track traffic has in recent years obtained development rapidly.Power supply rail provides a kind of measure of the electric power in the urban track traffic at present.
Existing expansion pipe product has clamping plate type connection, the connection of pestle rod-type, flexible wire type connection to be connected several kinds with the soft band of closed loop on being electrically connected, though its form is varied, defective is in various degree arranged all.Particularly on mechanical connection, face contact crimping is arranged, line contact crimping can firm crimping to track.But it is big to produce sliding resistance when slide rail expands with heat and contract with cold, occur slide rail habitually in the past and can stretch out and fail smooth indentation, so that the joint displacement, cause collector shoe to be hung and take off, influence locomotive and receive.
Summary of the invention
The utility model purpose is to propose a kind of expansion pipe that is beneficial to the good ball compression joint type power rail of the slipping property that expands with heat and contract with cold.
The utility model comprises left and right slide rail and is arranged in the mid-rail between the left and right slide rail; The clamping plate of length greater than mid-rail are set respectively in the both sides of mid-rail separately; Said two clamping plates is connected on the mid-rail through bolt; Left and right two ends at said two clamping plates are provided with bolt hole respectively; Along the length direction of track left slide rail elongated slot is set at the right-hand member of said left slide rail; Between the bolt hole of said left slide rail elongated slot and the left end of said two plate holder plates, be connected first bolt, along the length direction of track right slide rail elongated slot be set, between the bolt hole of said right slide rail elongated slot and two clamping plates right-hand member, be connected second bolt at the left end of said right slide rail; Ball is set respectively between the opposite face of said two clamping plates and left and right slide rail.
The utility model adopts clamping plate and the crimping of left and right slide rail millet cake face; Both can clamp the aluminium rail; The positive mechanical that guarantees left slide rail, middle rail, right slide rail connects, and line direction freely moves cunning in the contact surface upper edge of clamping plate can to make left and right slide rail again, and clamping plate middle part and middle rail level engage firmly; Make mid-rail and clamping plate not produce the displacement on any direction; Particularly between the contact surface of two clamping plates and left and right slide rail, be provided with ball respectively, this crimping slide construction has satisfied the designing requirement of left and right sides rail stroke, can not produce to hinder flexible resistance obstacle; Can ensure the power supply stability of urban track traffic, improve the safety in operation of urban track traffic.
Make for ease, install, the utility model is provided with the ball groove on the clamping plate surface towards left and right slide rail, in said each ball groove, ball is set respectively.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 bows to view for Fig. 1's.
Fig. 3 is the A-A cross sectional drawing of Fig. 1.
Fig. 4 is the B-B cross sectional drawing of Fig. 1.
The specific embodiment
Like Fig. 1, shown in 2, the utility model is provided with left slide rail 1, right slide rail 2 and is arranged in left and right slide rail 1, the mid-rail between 23.The upper and lower two clamping plates 4,5 of length greater than mid-rail 3 is set respectively in the both sides of mid-rail 3, and two clamping plates 4,5 is fixedly connected on the mid-rail 3 through bolt 6,7.
Left and right two ends at two clamping plates 4,5 are provided with bolt hole respectively; Along the length direction of track left slide rail elongated slot 1-1 is set at the right-hand member of left slide rail 1; Between the bolt hole of left slide rail elongated slot 1-1 and the left end of two plate holder plates 4,5, be connected first bolt 8; Along the length direction of track right slide rail elongated slot 2-1 is set at the left end of right slide rail 2, between the bolt hole of right slide rail elongated slot 2-1 and two clamping plates 4,5 right-hand members, is connected second bolt 9.
As shown in Figure 3, between the opposite face of clamping plate 4 and left slide rail 1, ball 10 is set, between the opposite face of clamping plate 5 and left slide rail 1, ball is set also.
As shown in Figure 4, between the opposite face of clamping plate 4 and right slide rail 2, ball 10 is set, between the opposite face of clamping plate 5 and right slide rail 2, ball is set also.
Concrete set-up mode is: clamping plate 4,5 surfaces towards a left side are provided with the ball groove respectively, in each ball groove, ball 10 are set respectively.
Claims (2)
1. the expansion pipe of ball compression joint type power rail; Comprise left and right slide rail and be arranged in the mid-rail between the left and right slide rail; It is characterized in that being provided with separately respectively the clamping plate of length greater than mid-rail in the both sides of mid-rail; Said two clamping plates is connected on the mid-rail through bolt; Left and right two ends at said two clamping plates are provided with bolt hole respectively, along the length direction of track left slide rail elongated slot are set at the right-hand member of said left slide rail, between the bolt hole of said left slide rail elongated slot and the left end of said two plate holder plates, are connected first bolt; Along the length direction of track right slide rail elongated slot is set at the left end of said right slide rail, between the bolt hole of said right slide rail elongated slot and two clamping plates right-hand member, is connected second bolt; Ball is set respectively between the opposite face of said two clamping plates and left and right slide rail.
2. according to the expansion pipe of the said ball compression joint type of claim 1 power rail, it is characterized in that the ball groove being set respectively, in said each ball groove, ball is set respectively on clamping plate surface towards left and right slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202034080U CN202098298U (en) | 2011-06-16 | 2011-06-16 | Ball press-connecting type expansion joint of power supply rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202034080U CN202098298U (en) | 2011-06-16 | 2011-06-16 | Ball press-connecting type expansion joint of power supply rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202098298U true CN202098298U (en) | 2012-01-04 |
Family
ID=45384327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202034080U Expired - Lifetime CN202098298U (en) | 2011-06-16 | 2011-06-16 | Ball press-connecting type expansion joint of power supply rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202098298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259601A (en) * | 2011-06-16 | 2011-11-30 | 江苏凯邦轨道交通器材有限公司 | Expansion joint of ball crimped-type power supply rail |
-
2011
- 2011-06-16 CN CN2011202034080U patent/CN202098298U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259601A (en) * | 2011-06-16 | 2011-11-30 | 江苏凯邦轨道交通器材有限公司 | Expansion joint of ball crimped-type power supply rail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |
|
| CX01 | Expiry of patent term |