CN212751672U

CN212751672U - Bridge steering device

Info

Publication number: CN212751672U
Application number: CN202021510202.8U
Authority: CN
Inventors: 李贵祥; 万文胜
Original assignee: Guizhou Changyu Electric Power & Electrical Co ltd
Current assignee: Guizhou Changyu Electric Power & Electrical Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-03-19
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses a bridge frame steering device, belonging to the technical field of power equipment; the device comprises joints for connecting bridges in different directions and rubber telescopic cylinders for connecting different joints; the joint part is consistent with the shape of the bridge shell, is made of aluminum alloy, is provided with a rubber cushion layer on the inner surface, and is fixedly connected by extruding the outer wall of the bridge shell after being spliced at the end part of the bridge; the rubber telescopic cylinder is formed by connecting a plurality of large-inner-diameter rubber rings and small-inner-diameter rubber rings at intervals, aluminum alloy rings are fixedly arranged on the inner walls of the large-inner-diameter rubber rings, and the inner diameters of the aluminum alloy rings are smaller than the inner diameters of the small-inner-diameter rubber rings; the large inner diameter rubber ring, the small inner diameter rubber ring and the aluminum alloy ring are arranged concentrically. The steering device of the utility model can switch any angle to connect the bridge; the field installation requirement can be met by designing a plurality of types of steering devices (at most 3 types), and the types and the number of field bridge frame connecting pieces are greatly reduced.

Description

Bridge steering device

Technical Field

The utility model relates to a power equipment technical field especially relates to a device that turns to of crane span structure.

Background

The bridge frame is a rigid structure system which is formed by a groove type, tray type or step type straight line section, a bend-through, a tee joint, a four-way assembly, a supporting arm (arm type support), a hanging bracket and the like and has a joint connection supporting cable. The turning in the bridge mounting process is mainly realized by multi-type accessories such as straight-through accessories, bent-through accessories, tee accessories and the like (for example, an upper corner vertical tee, an upper side vertical tee, a lower corner vertical tee, a horizontal bent-through accessory, a vertical lower bent-through accessory and a vertical upper bent-through accessory … …), a plurality of different types of accessories are often needed in one bridge mounting project, the converted angle is specific and single, free switching at any angle cannot be realized, and the quantity of the needed types of accessories is often insufficient when an accident occurs in a field environment.

Disclosure of Invention

In order to overcome the above-mentioned defect of prior art, the utility model aims at providing a can switch wantonly and turn to, and only need turn to the device that turns to of type according to the quantity design of connecting the crane span structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a bridge frame steering device comprises joints for connecting bridge frames in different directions, and rubber telescopic cylinders for connecting the joints; the joint part is consistent with the shape of the bridge shell, is made of aluminum alloy, is provided with a rubber cushion layer on the inner surface, and is fixedly connected by extruding the outer wall of the bridge shell after being spliced at the end part of the bridge; the rubber telescopic cylinder is formed by connecting a plurality of large-inner-diameter rubber rings and small-inner-diameter rubber rings at intervals, aluminum alloy rings are fixedly arranged on the inner walls of the large-inner-diameter rubber rings, and the inner diameters of the aluminum alloy rings are smaller than the inner diameters of the small-inner-diameter rubber rings; the large inner diameter rubber ring, the small inner diameter rubber ring and the aluminum alloy ring are arranged concentrically.

Preferably: the large inner diameter rubber ring and the aluminum alloy ring are integrated through a stacking and embedding vulcanization process.

Preferably: the connecting surface of the large inner diameter rubber ring and the small inner diameter rubber ring is a conical surface inclined at a certain angle.

Preferably: still include maintenance portion, maintenance portion is the frustum appearance, be located the central point of turning to the device and put and with the rubber telescopic tube fixed connection of each branch road, inside be equipped with the passageway of the inside intercommunication of rubber telescopic tube, the top is equipped with the top cap that the lock is connected.

The utility model discloses a joint connection turns to device and crane span structure, and the design through the flexible section of thick bamboo of rubber realizes the free switching of angle, and wherein inboard aluminium alloy ring is used for placing and the inside passage of support cable, because the bridge frame is shorter at the length that turns to the position, therefore the length of the flexible section of thick bamboo of rubber is also shorter, connects the back structure through the joint of tip and is in stable state. The steering device mainly utilizes the elasticity and the flexibility of the rubber telescopic cylinder to realize steering; the aluminum alloy ring on the inner side greatly improves the overall strength and the transverse rigidity (perpendicular to the extension direction of the bridge) of the steering device on the one hand, and on the other hand, the aluminum alloy ring becomes a cable placing space through the design of the inner diameter, so that the safety is greatly improved.

In addition, the design of the inspection part facilitates the inspection of the turning position, the inside is checked by opening the top cover, and the cable in the corresponding direction is inspected by taking off the joint part in any direction and pressing the joint part to the inspection part.

In practical use, by designing the linear steering devices of the two joints, two bridges in any direction can be connected, including the bridges in a horizontal plane or a vertical plane, and any angle can be switched; the steering device is integrally formed into a Y shape through the design of three joints, and three bridges in any direction can be connected; the cross shape of the same four joints can connect four bridges in any direction. Therefore, with the utility model provides a turn to the device, only need to use several (four are enough under the normal conditions) type to turn to the device and can realize the connection of all crane spans when turning to.

Drawings

FIG. 1 is a schematic view of the entire structure of embodiment 1;

FIG. 2 is a schematic end view of the joint;

FIG. 3 is a schematic cross-sectional view of a large inner diameter rubber ring;

FIG. 4 is a schematic view of the entire structure of embodiment 2;

fig. 5 is a schematic view of the entire structure of embodiment 3.

In the figure: 1. a joint portion; 11. a rubber cushion layer; 2. a rubber telescopic cylinder; 21. a large inner diameter rubber ring; 22. a small inner diameter rubber ring; 23. an aluminum alloy ring; 3. a maintenance part; 31. and a top cover.

Detailed Description

The construction and principles of the steering apparatus of the present invention will now be explained in conjunction with specific embodiments, so as to enable one of ordinary skill in the art to understand and implement the same.

Example 1

As shown in fig. 1-3: a bridge steering device comprises two joints 1 (two joints 1 in the embodiment are used for connecting two bridges in different directions), a rubber telescopic cylinder 2 for connecting the two joints 1; the shape of the joint part 1 is consistent with that of the bridge shell, the joint part is made of aluminum alloy, a rubber cushion layer 11 is arranged on the inner surface of the joint part, and after the joint part is inserted at the end part of the bridge, the rubber cushion layer 11 extrudes the outer wall of the bridge shell to realize fixed connection; the rubber telescopic cylinder 2 is formed by connecting a plurality of large inner diameter rubber rings 21 and small inner diameter rubber rings 22 at intervals, and the connecting surface of the large inner diameter rubber rings 21 and the small inner diameter rubber rings 22 is a conical surface inclined at a certain angle; an aluminum alloy ring 23 is fixedly arranged on the inner wall of the large inner diameter rubber ring 21, the large inner diameter rubber ring 21 and the aluminum alloy ring 23 are integrated through a stacking and embedding vulcanization process, and the inner diameter of the aluminum alloy ring 23 is smaller than that of the small inner diameter rubber ring 22; the large inner diameter rubber ring 21, the small inner diameter rubber ring 22 and the aluminum alloy ring 23 are concentrically arranged.

This embodiment will turn to device and crane span structure tip fixed connection through two joints 1, and rubber telescopic tube 2 is used for turning to, mainly realizes through the structural design of rubber telescopic tube 2 and the elasticity of rubber, and wherein the aluminium alloy ring 23 that increases can improve and turn to holistic intensity and the rigidity of device, makes it become the carrier that the cable was placed through the design of aluminium alloy 23 ring internal diameter. During installation, a cable in the first side bridge frame is placed into the second side bridge frame after passing through the steering device, then the first side bridge frame is fixedly connected with the joint part 1, the rubber telescopic cylinder 2 is stretched and steered, meanwhile, the cable is properly stretched to a natural stretching position, and the second side bridge frame is connected with the other joint part 1. When in maintenance, the joint parts 1 on any side are pulled out and the rubber telescopic cylinder 2 is compressed. The steering position is generally relatively narrow, so the volume of the steering device is not large, and although the rubber telescopic tube 2 in the middle is of a cylindrical structure, the whole steering device can be in a stable state through the fixed connection of the joint parts 1 at the two sides and the mounting bracket of the bridge. Preferably: two convex ribs are designed at the bottom of the steering device of the mounting bracket to fix the cylindrical rubber telescopic cylinder 2.

The steering device can be used for connecting two bridges at any angle, and different bend-through or straight-through auxiliary parts at all angles are not needed during installation.

Example 2

As shown in fig. 4: the embodiment is improved on the basis of the embodiment 1, and mainly shows that: the utility model provides a crane span structure turns to device, still includes maintenance portion 3, maintenance portion 3 is the frustum appearance, be located the central point that turns to the device put and with the flexible section of thick bamboo 2 fixed connection of rubber of each branch road, inside be equipped with the passageway of the flexible section of thick bamboo 2 inside intercommunications of rubber, the top is equipped with top cap 31 that the lock is connected.

This embodiment is through the maintenance portion 3 that increases, makes the crane span structure more convenient turning to the department and overhauls, can tentatively look over key position through the top cap 31 of maintenance portion 3, extracts the joint portion of both sides again when needs are overhauld. In addition, the added maintenance part 3 is a frustum structure, and the flat placing surface of the bottom surface makes the structure of the whole steering device more stable when the maintenance part is installed.

Example 3

As shown in fig. 5: the embodiment is a steering device of three bridges, the whole steering device is Y-shaped, the maintenance part 3 is positioned at the center, the connection of the three bridges is effectively solved, and the three rubber telescopic cylinders 2 can realize the random conversion of the directions of the three bridges.

According to the above embodiment analysis, the utility model discloses a crane span structure turns to device can solve the connection of arbitrary angle crane span structure, and overhauls the convenience, and general crane span structure installation engineering mostly only has 2/3/4 crane span structure connected modes, consequently only need design three kinds to turn to the device and can solve most crane span structure connection, compares in the prior art numerous curved expert, directly, connecting pieces such as tee bend … …, practiced thrift the cost greatly, and make installation site part kind reduce greatly, suitable using widely.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any manner. The technical solution of the present invention can be changed and modified in many ways by the method disclosed above, or modified to equivalent embodiments with equivalent changes, without departing from the technical principle and scope of the present invention. Therefore, do not break away from the utility model discloses a principle or scheme, the foundation the utility model discloses a technical essence is right the utility model discloses any combination, modification or replacement that technical characteristic made all shall belong to the technical scheme's of the utility model protection scope.

Claims

1. The bridge frame steering device is characterized by comprising joints (1) for connecting bridge frames in different directions, and rubber telescopic cylinders (2) for connecting the joints (1); the shape of the joint part (1) is consistent with that of the bridge shell, the joint part is made of aluminum alloy, a rubber cushion layer (11) is arranged on the inner surface of the joint part, and after the joint part is inserted at the end part of the bridge, the rubber cushion layer (11) extrudes the outer wall of the bridge shell to realize fixed connection; the rubber telescopic cylinder (2) is formed by connecting a plurality of large-inner-diameter rubber rings (21) and small-inner-diameter rubber rings (22) at intervals, aluminum alloy rings (23) are fixedly arranged on the inner walls of the large-inner-diameter rubber rings (21), and the inner diameters of the aluminum alloy rings (23) are smaller than the inner diameters of the small-inner-diameter rubber rings (22); the large inner diameter rubber ring (21), the small inner diameter rubber ring (22) and the aluminum alloy ring (23) are arranged concentrically.

2. Bridge frame steering device according to claim 1, characterised in that said rubber ring (21) with large internal diameter and aluminium alloy ring (23) are integrated by a imbrication vulcanisation process.

3. A bridge steering device as claimed in claim 2, characterised in that the connection surfaces of said rubber rings (21, 22) of large and small internal diameters are tapered surfaces inclined at a certain angle.

4. The bridge frame steering device of claim 3, further comprising an inspection part (3), wherein the inspection part (3) is in a frustum shape, is positioned at the center of the steering device and is fixedly connected with the rubber telescopic cylinders (2) of each branch, is internally provided with a channel communicated with the inside of the rubber telescopic cylinders (2), and is provided with a top cover (31) at the top for buckling connection.