CN212357837U

CN212357837U - Self-adaptive track beam connection telescopic device

Info

Publication number: CN212357837U
Application number: CN202020881516.2U
Authority: CN
Inventors: 牛均宽; 李利军; 仵叔强; 张宁; 王孝儒
Original assignee: China Railway Baoji Bridge Group Co Ltd
Current assignee: China Railway Baoji Bridge Group Co Ltd
Priority date: 2020-05-24
Filing date: 2020-05-24
Publication date: 2021-01-15
Anticipated expiration: 2030-05-24

Abstract

The utility model relates to a self-adaptive track beam connection expansion device, wherein a fixed end butt strap and a movable end butt strap are respectively fixed at a fixed track beam end and a movable track beam end, the upper end of a positioning pin is fixedly connected with a transverse movable plate, the transverse movable plate is lapped on the fixed end butt strap and the movable end butt strap, and a flexible floating connection is formed by fixing a conical limiting bolt, a disc spring and a limiting slide plate limiting baffle; the transverse movable plate is connected with the telescopic device on the walking surface and transversely moves, stepless adjustment along the length direction of the track beam is achieved, and meanwhile the transverse movable plate is suitable for vertical corners and transverse break angles of adjacent track beams. The advantages are that: the method has the advantages that firstly, the corners of the track beam are self-adaptive, and the universal applicability under the action of corners of different beam ends is realized; secondly, stepless adjustment is carried out along the length direction of the track beam; thirdly, the limiting bolt of the transverse movable plate has simple structure, convenient installation and convenient later maintenance; fourthly, the bearing capacity and the service life of the limiting bolt are improved; fifthly, the vibration reduction and noise reduction device has the characteristics of vibration reduction, noise reduction, safety and reliability.

Description

Self-adaptive track beam connection telescopic device

Technical Field

The utility model relates to a noise and the problem that spacing bolt drops when can effectively solve the train and connect the telescoping device through walking the shape face have realized the self-adaptation track roof beam of adaptability under the different corner circumstances simultaneously and have connected the telescoping device, belong to track roof beam and connect the telescoping device and make the field.

Background

CN 101007538B, entitled "suspension type track joint expansion device and method", two left beam fixed end risers, two right beam loose end risers and two crossbeams constitute two door-shaped suspension track joint expansion frames, the upper parts of the inner sides of the two door-shaped suspension track joint expansion frames constitute expansion connection through side stabilizing face expansion mechanisms, the lower parts of the inner sides of the two door-shaped suspension track joint expansion frames constitute expansion connection through side guide face expansion mechanisms, transverse sliding pin bolt mechanisms are respectively connected with the lower end faces of the two left beam fixed end risers and the two right beam loose end risers and are used for releasing beam end corners caused by vertical loads of vehicles, and the bottom surface running face expansion mechanisms are respectively positioned on the expansion movable plates in the transverse sliding pin bolt mechanisms on the inner sides of the two left beam fixed end risers and the two right beam loose end risers and constitute semi-floating connection.

The combination of the limiting sliding plate, the limiting bolt and the limiting pin in the bottom surface walking surface telescopic mechanism ensures that the telescopic movable plate slides in a groove defined by the fixed end access plate and the movable end access plate through lower cavities all the time, the combination of the belleville spring, the protective bushing and the thin nut ensures that the telescopic movable plate is in limited floating connection, and the telescopic movable plate can be uniformly divided into corners when the beam end corners are caused by vertical loads of vehicles.

It has the following disadvantages: in the in-service use, spacing bolt is connected with the fly leaf through the welded mode in this patent, and disc spring adopts the parallelly connected type to install, has appeared noise and spacing bolt among the use and drop and the problem.

Disclosure of Invention

The design purpose is as follows: the defects in the prior art are avoided, the problems that noise and a limiting bolt fall off when a train passes through a walking surface to be connected with the telescopic device are effectively solved, and the adaptive track beam connection telescopic device with adaptability under different corner conditions is realized.

The design scheme is as follows: in order to achieve the above design objectives. The utility model discloses in structural design: 1. the track beam connecting and telescoping device is arranged on the walking surface of the adjacent track beam and mainly comprises a transverse movable plate, a fixed end butt strap, a movable end butt strap, a limiting sliding plate, a limiting bolt, a limiting pin, a butterfly spring, a nut and the like. The fixed end butt strap and the movable end butt strap are respectively fixed at the fixed track beam end and the movable track beam end, the transverse movable plate is lapped on the fixed end butt strap and the movable end butt strap and is fixed through the conical limiting bolt, the butterfly spring, the limiting sliding plate and the limiting baffle plate to form flexible floating connection. The transverse movable plate is connected with the telescopic device on the walking surface and transversely moves, stepless adjustment along the length direction of the track beam is achieved, and meanwhile the transverse movable plate is suitable for vertical corners and transverse break angles of adjacent track beams. 2. Under the action of temperature, the track beam stretches in the length direction, and the transverse movable plate is in lap joint with the fixed end butt strap and the movable end butt strap to slide transversely, so that the stepless adjustment in the length direction of the walking surface connection stretching device and the seamless connection of the track beam are realized. 3. Under the action of the beam end corner, an included angle is formed between two adjacent rail beam ends, the transverse movable plate is lapped on the fixed end butt strap and the movable end butt strap to float, the butterfly spring prepressing gap is released, and the walking surface is connected with the telescopic device to adapt to the rail beam corner deformation. 4. The transverse movable plate is provided with the tapered hole, the self-locking of the tapered limiting bolt is realized by utilizing the self-locking angle, and the transverse movable plate is fixed on the fixed end lapping plate or the movable end lapping plate through the tapered limiting bolt, so that the bearing capacity and the reliability of connection are improved, and meanwhile, the construction difficulty of the original welding structure is reduced to a great extent. 5. A butterfly spring is arranged at one end of the conical limiting bolt and is in parallel-series combination, the butterfly spring is located between the limiting sliding plate and the limiting baffle, a preset force is applied through a nut, and through the parallel-series combination use of the butterfly spring, the contact rigidity between the movable plate and the fixed end access plate/the movable end access plate is greatly improved, the noise of a train when the train passes through the shape moving surface to be connected with the telescopic device is reduced, and meanwhile, the comfort level is improved. 6. When the belleville springs are installed, the belleville springs are used in a parallel-series combination mode, a certain compression amount (the compression amount is determined through calculation of the corner of the beam end) needs to be reserved to adapt to the corner deformation of the track beam, and the safety and the reliability of the walking surface connection expansion device are improved.

The technical scheme is as follows: a self-adaptive track beam connection telescopic device is characterized in that the track beam connection telescopic device is installed on a walking surface of an adjacent track beam, a fixed end butt strap and a movable end butt strap are respectively fixed at a fixed track beam end and a movable track beam end, the upper end of a positioning pin is fixedly connected with a transverse movable plate, the transverse movable plate is lapped on the fixed end butt strap and the movable end butt strap, and flexible floating connection is formed by fixing a conical limiting bolt, a disc spring, a limiting sliding plate and a limiting baffle; the transverse movable plate is connected with the telescopic device on the walking surface and transversely moves, stepless adjustment along the length direction of the track beam is achieved, and meanwhile the transverse movable plate is suitable for vertical corners and transverse break angles of adjacent track beams.

Compared with the prior art, the utility model has the advantages that firstly, the transverse movable plate limit bolt has simple structure, convenient installation and convenient later maintenance; secondly, the bearing capacity and the service life of the limiting bolt are improved; thirdly, the universal applicability under the action of different beam end corners is realized; fourthly, the utility model has the characteristics of vibration reduction, noise reduction, safety and reliability; the utility model discloses can expand to use in all kinds of track roof beams connect telescoping device (stride a formula single track, field such as light rail of sightseeing of touring).

Drawings

Fig. 1 is a schematic view of the overall installation of the adaptive track beam connection telescopic device.

Fig. 2 is a schematic perspective view of the structure of the retractor.

Fig. 3 is a schematic view of the structure of the telescopic device.

Fig. 4 is a schematic sectional view of a portion a-a in fig. 3.

Detailed Description

Example 1: reference is made to fig. 1-4. A self-adaptive track beam connection telescopic device is a core component of a suspension type monorail track structure and is an important part for keeping the continuity of the track structure and the stability of vehicle passing. The rail structure seamlessly connects two adjacent rail beams, can adapt to the change of the beam length along with temperature and the corner of the beam end, and directly determines the safety, the smoothness and the comfort of passengers of the rail structure.

As shown in fig. 1 and 2, the walking surface connection telescopic device 3 is installed on the movable beam end hanging frame 1 and the fixed beam end hanging frame 2, and the walking surface connection telescopic device 3 realizes seamless connection of two adjacent track beams and adapts to the length and the corner change of the beams.

As shown in the figure, a fixed end butt strap 3-2 and a movable end butt strap 3-1 are respectively installed at the positions of the running surfaces of adjacent track beams through bolts, a conical limiting bolt 3-4 is installed in a conical hole of a transverse movable plate 3-3, and the conical limiting bolt is pressed until the end of the conical limiting bolt is flush with the movable plate surface.

As shown in figure 4, a transverse movable plate provided with a conical bolt is placed on a fixed end butt strap 3-2 and a movable end butt strap 3-1, the positions are adjusted, and a limiting sliding plate 3-11, a belleville spring 3-10, a limiting baffle 3-9 and a nut 3-8 are sequentially arranged. And (3) placing the positioning pins 3-5 from top to bottom to align the upper surfaces, connecting in a grinding and flattening mode after welding, and then installing the anti-rotation washers 3-6 and the elastic check rings 3-7 for the shaft.

As shown in FIG. 4, the belleville springs 3-10 are installed in series two by two, and then the four belleville springs 3-10 are installed by connecting them in parallel. And the nut 3-8 rotates for a circle after being applied with strength, is screwed to the flush of the bolt head after being tightened for three times and loosened for three times, and is provided with an anti-rotation washer 3-6 after fine adjustment (retreating for 30 degrees at most). And reserving compressible allowance of 0.5-0.6 mm as the adaptive quantity of the corner of the beam end, so that the beam end cannot be invaded.

After the suspension type track beam walking surface is connected with the telescopic device, the installation of each part is convenient, the operation is simple and reliable, and the installation and the later-stage structure maintenance are convenient.

It is to be understood that: although above-mentioned embodiment is right the utility model discloses a design has done more detailed word description, but these word descriptions, are only right the utility model relates to a simple word description of idea, rather than right the utility model relates to a restriction of idea, any do not surpass the utility model relates to a combination, increase or the modification of idea all fall into the utility model discloses a within the protection scope.

Claims

1. The utility model provides a telescoping device is connected to self-adaptation track roof beam which characterized by: the track beam connecting and telescoping device is arranged on a walking surface of an adjacent track beam, a fixed end butt strap (3-2) and a movable end butt strap (3-1) are respectively fixed at the fixed track beam end and the movable track beam end, the upper end of a positioning pin (3-5) is fixedly connected with a transverse movable plate (3-3), the transverse movable plate (3-3) is lapped on the fixed end butt strap (3-2) and the movable end butt strap (3-1), and a flexible floating connection is fixedly formed through a conical limiting bolt (3-4), a disc spring (3-10), a limiting sliding plate (3-11) and a limiting baffle plate (3-9); the transverse movable plate (3-3) is connected with the expansion device on the shaping surface and transversely moves, stepless adjustment along the length direction of the track beam is achieved, and meanwhile the vertical corner and the transverse break angle of the adjacent track beam are adapted.

2. The adaptive track beam connection telescopic device of claim 1, wherein: the transverse movable plate (3-3) is provided with a tapered hole, the self-locking of the tapered limiting bolt (3-4) is realized by utilizing a self-locking angle, and the transverse movable plate (3-3) is fixed on the fixed end butt strap (3-2) or the movable end butt strap (3-1) through the tapered limiting bolt (3-4).

3. The adaptive track beam connection telescopic device of claim 1, wherein: one end of the conical limiting bolt (3-4) is provided with a belleville spring (3-10), the belleville spring (3-10) is combined in parallel and series, the belleville spring (3-10) is located between the limiting sliding plate (3-11) and the limiting baffle plate (3-9), a preset force is exerted through the nut (3-8), and the belleville spring (3-10) is used in a combination of parallel and series.

4. The adaptive track beam connection telescopic device of claim 1, wherein: when the belleville springs (3-10) are installed, the belleville springs are used in a parallel-series combination mode, and a certain compression amount needs to be reserved to adapt to corner deformation of the track beam.

5. The adaptive track beam connection telescopic device of claim 3, wherein: the transverse movable plate (3-3) provided with the conical bolt is placed on the fixed end attachment strap (3-2) and the movable end attachment strap (3-1), the position is adjusted, the limiting sliding plate (3-11), the belleville spring (3-10), the limiting baffle plate (3-9) and the nut (3-8) are sequentially installed, the positioning pin (3-5) is placed from top to bottom and aligned with the upper surface, the positioning pin and the positioning pin are connected in a grinding mode after welding, and then the anti-rotation gasket (3-6) and the elastic retainer ring (3-7) for the shaft are installed.

6. The adaptive track beam connection telescopic device of claim 2, wherein: the fixed end butt strap (3-2) and the movable end butt strap (3-1) are respectively installed at the positions of the walking surfaces of adjacent track beams through bolts, and the conical limiting bolts (3-4) are installed in the conical holes of the transverse movable plates (3-3) and pressed until the ends of the conical limiting bolts are flush with the movable plate surfaces.

7. The adaptive track beam connection telescopic device of claim 4, wherein: the belleville springs (3-10) are connected in series two by two when being installed, and then the four belleville springs (3-10) are connected in parallel for installation.