CN213354234U - Gapless disconnected expansion joint - Google Patents
Gapless disconnected expansion joint Download PDFInfo
- Publication number
- CN213354234U CN213354234U CN202022325507.8U CN202022325507U CN213354234U CN 213354234 U CN213354234 U CN 213354234U CN 202022325507 U CN202022325507 U CN 202022325507U CN 213354234 U CN213354234 U CN 213354234U
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- fishplate
- rail
- copper
- expansion joint
- plate
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Abstract
The utility model discloses a zero clearance disconnect-type expansion joint. The method comprises the following steps: the movable rail, the fixed rail, the inner fishplate plate, the outer fishplate plate, the fishplate cushion block, the first copper-aluminum composite plate, the flexible copper connection, the second copper-aluminum composite plate, the flexible connection and fixation fishplate, the protective cover, the big bolt, the small bolt and the limit bolt. The utility model provides a zero clearance disconnection formula expansion joint makes the contact rail have no obvious discontinuity at expend with heat and contract with cold's in-process, does benefit to the current collector and receives the smooth advance of flow surface along the contact rail to can make the locomotive power supply continuous, operate steadily, reduce the noise of operation.
Description
Technical Field
The utility model belongs to the technical field of the railway transportation equipment, concretely relates to zero clearance disconnect-type expansion joint.
Background
The contact rail system is one of key power supply devices of an urban rail transit system, is generally arranged on two sides of a train rail, and is provided with a current collector which is in contact with a rail surface of the contact rail in the running process of the train so as to realize the process of supplying power to the train.
The general contact rail system is divided into several anchor sections, and the centre of every anchor section sets up an expansion joint, and the heat that ambient temperature changes and during the operation electric current produced can cause the change of contact rail temperature for the contact rail takes place expend with heat and contract with cold phenomenon, and the effect that the expansion joint set up just lies in satisfying the demand that the contact rail expend with heat and contract with cold, makes the train current collector pass through smoothly, satisfies the power supply demand of train.
The expansion joint of the contact rail commonly used in the market comprises two long rails and a short rail arranged between the two long rails, and obvious expansion joints are reserved between the two ends of the short rail and the long rail so as to meet the requirements of the contact rail on expansion with heat and contraction with cold. The existence of expansion joint makes the current collector big, produce the problem such as arc of drawing of operation noise when passing through, influences the operation of train.
Disclosure of Invention
The utility model discloses to prior art's defect, provide a zero clearance disconnected expansion joint. The expansion joint has no obvious gap disconnection, so that the current collector can be in stable transition, the noise in the operation process is reduced, and the riding comfort is improved.
The utility model provides a zero clearance disconnected expansion joint contains: the movable rail 1 and the fixed rail 2 are fixed by the inner fishplate plate 3 and the outer fishplate plate 4 in a staggered lap joint mode, and the joint of the movable rail 1 and the fixed rail 2 is in a staggered lap joint mode after being fixed; one end of the fishplate outer plate 4 is fixedly provided with a fishplate cushion block 5 and a copper-aluminum composite plate I6 through a large bolt 11; a flexible connection fixing fishplate 9 is inserted into the inner groove of the movable rail 1, and the flexible connection fixing fishplate 9 is used for fixing a copper-aluminum composite plate II 8 through a large bolt 11; one end of the copper flexible connection 7 is connected with the copper-aluminum composite plate I6, and the other end is connected with the copper-aluminum composite plate II 8; the protective cover 10 is mounted on the movable rail 1 by small bolts 12.
The movable rail 1 of the gapless disconnected expansion joint is provided with an elongated slot, and the mechanical limiting effect is realized through a limiting bolt 13.
The utility model has the advantages that: the interface between the movable rail 1 and the fixed rail 2 adopts a staggered lap joint mode, so that the current collector has no obvious discontinuity point in the process of passing through the fixed rail 2 to transition to the movable rail 1, the current collector smoothly and smoothly moves along the current receiving surface of the contact rail, the problems of current collector clamping stagnation and large operation noise caused by the obvious discontinuity point on the current receiving surface of the contact rail are avoided, the locomotive operates stably, the operation noise is reduced, and the riding comfort is improved.
Drawings
Figure 1 is an isometric view of a gapless breakaway expansion joint of the present invention.
Fig. 2 is a front view of a gapless breakaway expansion joint of the present invention.
Fig. 3 is a side view of a gapless breakaway expansion joint of the present invention.
In the figure, 1-movable rail, 2-fixed rail, 3-fishplate inner plate, 4-fishplate outer plate, 5-fishplate cushion block, 6-copper-aluminum composite plate I, 7-copper flexible connection, 8-copper-aluminum composite plate II, 9-flexible connection fixed fishplate, 10-protective cover, 11-big bolt, 12-small bolt and 13-limit bolt.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
According to the gapless disconnected expansion joint shown in fig. 1 and 2, the movable rail 1 and the fixed rail 2 are fixed by overlapping the inner fishplate plate 3 and the outer fishplate 4 in a staggered manner. After the expansion joint is fixed, the joint of the movable rail 1 and the fixed rail 2 is in a staggered lap joint mode, so that a gapless disconnection mode of the expansion joint is ensured. The inner fishplate plate 3 is inserted into the inner cavities of the movable rail 1 and the fixed rail 2 to play a role in fixing and guiding; one end of the fishplate outer plate 4 is fixed with a fishplate cushion block 5 and a copper-aluminum composite plate I6 through a big bolt 11.
According to the figures 2 and 3, a flexible connection fixing fishplate 9 is inserted into the inner cavity of the movable rail 1, and the flexible connection fixing fishplate 9 is fixed with a copper-aluminum composite plate II 8 through a large bolt 11; one end of the copper flexible connection 7 is connected with the copper-aluminum composite plate I6, and the other end is connected with the copper-aluminum composite plate II 8, so that electric energy is well conducted to the movable rail 1 from the fixed rail 2, and the continuity of power supply of the expansion joint is guaranteed. In consideration of the safety performance of the charged object, a protective cover 10 is arranged outside the copper flexible connection 7 and is arranged on the movable rail 1 through a small bolt 12. The movable rail 1 is provided with a long slotted hole which plays a role of limiting through a limiting bolt 13, and the expansion amount of the gapless disconnected expansion joint is ensured.
Claims (2)
1. A gapless disconnected expansion joint is characterized in that a movable rail (1) and a fixed rail (2) in the gapless disconnected expansion joint are fixed in a staggered lap joint mode through a fishplate inner plate (3) and a fishplate outer plate (4), and the joint of the movable rail (1) and the fixed rail (2) is in a staggered lap joint mode after the movable rail and the fixed rail are fixed; one end of the fishplate outer plate (4) is fixedly provided with a fishplate cushion block (5) and a copper-aluminum composite plate I (6) through a large bolt (11); a flexible connection fixing fishplate (9) is inserted into the inner groove of the movable rail (1), and the flexible connection fixing fishplate (9) is used for fixing a copper-aluminum composite plate II (8) through a large bolt (11); one end of the copper flexible connection (7) is connected with the copper-aluminum composite plate I (6), and the other end is connected with the copper-aluminum composite plate II (8); the protective cover (10) is arranged on the movable rail (1) through a small bolt (12).
2. Gapless break-open expansion joint according to claim 1, characterized in that the movable rail (1) is provided with an elongated slot for mechanical stop by means of a stop bolt (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022325507.8U CN213354234U (en) | 2020-10-19 | 2020-10-19 | Gapless disconnected expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022325507.8U CN213354234U (en) | 2020-10-19 | 2020-10-19 | Gapless disconnected expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213354234U true CN213354234U (en) | 2021-06-04 |
Family
ID=76131610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022325507.8U Active CN213354234U (en) | 2020-10-19 | 2020-10-19 | Gapless disconnected expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213354234U (en) |
-
2020
- 2020-10-19 CN CN202022325507.8U patent/CN213354234U/en active Active
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