CN202509393U

CN202509393U - Centering positioning device of double-leaf bascule bridge

Info

Publication number: CN202509393U
Application number: CN 201120492361
Authority: CN
Inventors: 倪建和; 刘志民; 谢宝来
Original assignee: Tianjin Engineering Machinery Institute
Current assignee: Tianjin Engineering Machinery Institute
Priority date: 2011-12-01
Filing date: 2011-12-01
Publication date: 2012-10-31
Anticipated expiration: 2021-12-01

Abstract

The utility model discloses a centering positioning device of a double-leaf bascule bridge. The centering positioning device comprises a master pin, a guide rail, a master pin oil cylinder, and upper and lower centering oil cylinders, the master pin, the guide rail and the master pin oil cylinder are arranged at a closure position of the same half bridge, a plug is disposed at the front end of the master pin, the rear end of the master pin is connected with the master pin oil cylinder, the master pin is pushed by the master pin oil cylinder to move along the guide rail, the upper and lower centering oil cylinders are disposed at a closure position of the other half bridge of the bascule bridge, centre lines of piston rods of the two oil cylinders are on the same straight line and are perpendicular to the moving direction of the master pin, tops of the two oil cylinders are oppositely arranged, two pistons move simultaneously, and moving directions of the two pistons are opposite. The distance between tops of the two oil cylinders is matched with the thickness of the plug of the master pin. Space formed between tops of the two oil cylinders is a jack socket of the plug. The horizontal error of two half spans can be effectively overcome, and shear load influences generated at a junction position of the bascule bridge when vehicle loads pass through the bridge can be overcome.

Description

A kind of centering positioner of double leaf vertical transfer formula movable bridge

Technical field

The utility model relates to a kind of fastening devices of movable bridge, relates in particular to a kind of centering positioner of double leaf vertical transfer formula movable bridge.

Background technology

As everyone knows, vertical transfer formula movable bridge is a kind of unlatching bridge of the bridge span structure rotatable folding on facade above the navigation channel.Claim single leaf formula vertical transfer bridge from the structure of an end folding; Folding is divided into the title double-valve type vertical transfer bridge of two parts bascule from two ends.At present, existing at home and abroad vertical transfer formula is opened in the bridge, does not basically all use the centering navigation system; Therefore; It is inconsistent to overcome the half-bridge end position that the double leaf half-bridge causes owing to alignment error, temperature and vertical load are inconsistent, and two half-bridges can't tightly align after closure, when vehicle during through the bridge junction; Vehicle can jolt; The comfortableness of driving is had a greatly reduced quality, and under so long vehicular load impacts, Structure Safety for Bridge property and durability has also been produced adverse effect.

The utility model content

To above-mentioned prior art; The utility model provides a kind of centering positioner of double leaf vertical transfer formula movable bridge; Fixed connection when being used for half-bridge and being horizontal between two half-bridges; Two and half horizontal errors of striding can be overcome effectively, vehicular load can be overcome through bridge, the influence of the shear load that produces in the movable bridge junction.

In order to solve the problems of the technologies described above; The technical scheme that the centering positioner of the utility model double leaf vertical transfer formula movable bridge is achieved is: comprise stub, guide rail and stub oil cylinder; Said stub, guide rail and stub oil cylinder all are arranged on the closure position of same half-bridge; The rear end of said stub is connected with said stub oil cylinder, and guide rail moves said stub in the promotion lower edge of said stub oil cylinder; Be provided with centering oil cylinder, centering oil cylinder down at the closure position of another half-bridge of movable bridge; Said go up the centering oil cylinder, down the center line of the piston rod of two oil cylinders of centering oil cylinder on same straight line and vertical with the moving direction of said stub; The top of two oil cylinders is for being oppositely arranged; The piston rod of said two oil cylinders moves simultaneously, and both moving directions are opposite.

Compared with prior art,, the end of double leaf vertical transfer formula unlatching bridge has following beneficial effect after being equipped with the utility model centering positioner:

(1) can overcome bridge steel structure because the horizontal error that the inaccuracy caused two and half in making, process, welding is striden;

(2) it is inhomogeneous to overcome two half-bridge surface temperatures, like: a cold heat and the small temperature difference effect that causes and the horizontal error that causes;

A heap of bridge deck that (3) can overcome two half-bridge faces has accumulated snow, and another does not cover accumulated snow, i.e. the horizontal error that effect has different vertical direction loads to cause;

(4) can overcome vehicular load through bridge, the influence of the shear load that produces in the movable bridge junction.The utility model centering positioner, it is simple in structure, reliable, and cost is lower.

Description of drawings

Fig. 1 is the front view of the centering positioner of the utility model double leaf vertical transfer formula movable bridge;

Fig. 2 is the vertical view of the utility model centering positioner.

Among the figure:

The following centering oil cylinder of 1---going up centering oil cylinder 11---

2---stub 21---stub oil cylinder

The left half-bridge of 3---guide rails 10---

20---right half-bridge

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model technology is done to describe in further detail.

As depicted in figs. 1 and 2; The centering positioner of a kind of double leaf vertical transfer of the utility model formula movable bridge; Comprise stub 2, guide rail 3 and stub oil cylinder 21, said stub 2, guide rail 3 and stub oil cylinder 21 all are arranged on the closure position of a half-bridge, and the front end of said stub 2 is provided with plug; The rear end of said stub 2 is connected with said stub oil cylinder 21, and guide rail 3 moves said stub 2 in the promotion lower edge of said stub oil cylinder 21; Closure position at another half-bridge of movable bridge is provided with two oil cylinders; Promptly go up centering oil cylinder 1 and following centering oil cylinder 11; The center line of the piston rod of said two

oil cylinders

1,11 is on same straight line and vertical with the moving direction of said stub 2; The top of two

oil cylinders

1,11 is for being oppositely arranged, and said two piston rods move simultaneously, and both moving directions are opposite; Distance between said two

oil cylinders

1,11 tops cooperates with the plug thickness of said stub 2, and the space that forms between two oil cylinder tops is the jack of said plug.That is: when two piston rods retreat into extreme position simultaneously; Distance between two oil cylinder tops should be able to make the plug of stub 2 stretch into easily; After two piston rods stretch out, the distance shrinkage between the relative top of two

oil cylinders

1,11, thus can be with stub 2 chucking lockings.

The centering process of the utility model centering positioner: during two half-bridges (left half-bridge 10 and right half-bridge 20) closure; The piston rod of last centering oil cylinder 1 and following centering oil cylinder 11 shrinks; Stub 2 moves along guide rail 3 under the promotion of stub oil cylinder 21, and the plug portion of stub 2 front ends extend in the middle of centering oil cylinder 1 piston and the following centering oil cylinder 11; Promptly be inserted in the half-bridge of opposite, so far can reach the basic centering (generally allowing the two bridge floor discrepancy in elevation in the 60mm scope) of two half-bridge horizontal planes; After the centering, will go up centering oil cylinder 1 and stretch out with following centering oil cylinder 11, thereby stub 2 is clamped by force, this clamping process makes two half-bridge corrections, and the locking that can guarantee two half-bridges is on same straight line, so far, two half-bridges is accomplished locking.Use the utility model centering positioner can realize the high-precision closure of double leaf vertical transfer formula movable bridge, guaranteed the ride comfort of bridge connecting portion.

Experiment embodiment; Not only obtained aforesaid beneficial effect but also reached following technical indicator through on a movable bridge on the Tianjin Haihe River, installing the utility model additional: two and half stride the end horizontal overall error in 2mm; The shearing that the vehicle load that can bear produces in the frame for movement of each centering positioner is 1100kN, and two activities of adjusting are striden the maintenance level and loaded on the shearing that produces on each stub 2 is 500kN.

Although top combination figure is described the utility model, the utility model is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, rather than restrictive.

Claims

1. the centering positioner of a double leaf vertical transfer formula movable bridge; Comprise stub (2), guide rail (3) and stub oil cylinder (21); It is characterized in that: said stub (2), guide rail (3) and stub oil cylinder (21) all are arranged on the closure position of same half-bridge; The rear end of said stub (2) is connected with said stub oil cylinder (21), and said stub moves at the promotion lower edge of said stub oil cylinder (21) guide rail (3); Be provided with centering oil cylinder (1), centering oil cylinder (11) down at the closure position of another half-bridge of movable bridge; Said go up centering oil cylinder (1), down the center line of the piston rod of (11) two oil cylinders of centering oil cylinder on same straight line and vertical with the moving direction of said stub (2); The top of two oil cylinders is for being oppositely arranged; The piston rod of said two oil cylinders moves simultaneously, and both moving directions are opposite.

2. the centering positioner of double leaf vertical transfer formula movable bridge according to claim 1; It is characterized in that: the front end of said stub (2) is provided with plug; Saidly go up centering oil cylinder (1), the distance between (11) two oil cylinder tops of centering oil cylinder cooperates with the plug thickness of said stub (2) down, the space that forms between two oil cylinder tops is the jack of said plug.