CN201850507U - A chord inspection vehicle for steel truss bridges - Google Patents

Abstract

The utility model discloses a last quarter inspection vehicle for steel truss bridge, this inspection vehicle include walking track (1), horizontal truss (2), drive arrangement and vertical truss (4), horizontal truss (2) upper berth is equipped with work platform (7), walking wheel (5 a) that horizontal truss (2) set up through walking support (5) lower extreme are arranged in on the walking track (1), drive arrangement power take off end with walking wheel (5 a) of walking support (5) are connected, vertical truss (4) are connected the both sides of horizontal truss (2) are provided with lift drive mechanism (4 a) and lift cage (4 b) on vertical truss (4), and this lift cage (4 b) are connected the power take off end of lift drive mechanism (4 a). The utility model discloses changed the detection mode of traditional steel purlin bridge girder body, avoided the influence to the bridge floor traffic among the testing process, convenient operation, safety detect the route and can cover whole girder body almost.

Description

A chord inspection vehicle for steel truss bridges

technical field

The utility model belongs to the technical field of bridges, and in particular relates to a chord inspection vehicle for steel truss bridges.

Background technique

The bridge inspection vehicle is a special vehicle suitable for disease maintenance and preventive inspection of large and medium-sized bridges. The main function is to conduct a comprehensive inspection and repair of each structure of the bridge to provide guarantee for the safety of the bridge. The maintenance content includes whether the components are distorted, deformed and locally damaged; whether the rivets and bolts are loose, falling off and broken; Whether the components are corroded or not. The bridge inspection vehicle can be divided into a bridge deck inspection vehicle and a suspension type inspection vehicle under the bridge. Although the bridge deck inspection vehicle is more convenient to use, due to the inspection of the bridge by walking on the road (on rails) or erecting a ship, it is bound to close the road traffic, the passage hole or the navigation hole of the bridge, which has a great impact on traffic , while the safety performance is also limited.

Utility model content

The purpose of the utility model is to provide a chord inspection vehicle for steel truss bridges that does not need to pass through the bridge deck, avoids affecting road traffic, and is convenient and safe to operate.

The technical scheme of the utility model is as follows:

An upper chord inspection vehicle for a steel truss bridge, the inspection vehicle includes a walking track, a horizontal truss, a driving device and a vertical truss, a working platform is laid on the horizontal truss, and the horizontal truss walks through the lower end of the walking support. The wheels are placed on the walking track, the power output end of the driving device is connected to the walking wheels of the walking support, the vertical truss is connected to both sides of the horizontal truss, and a lifting drive mechanism is arranged on the vertical truss And a lifting cage, the lifting cage is connected to the power output end of the lifting drive mechanism.

Using the above-mentioned structure, the walking track is laid on the horizontal truss of the steel truss bridge without passing through the bridge deck. The driving device drives the horizontal truss and the vertical truss to move longitudinally along the horizontal truss of the steel truss bridge. The lifting cage is driven by the lifting power mechanism. Moving up and down in the vertical truss, the staff can move on the working platform or lifting cage to inspect and maintain the steel bridge truss nodes and other positions. It overcomes the shortcomings of the original detection method that needs to pass through the bridge deck, and at the same time, the detection method has high safety, convenient operation, and a large inspection range.

The inspection vehicle also includes a top trolley, which moves along the trolley track laid on the working platform, and a lifting gondola is suspended on the top trolley, and the lifting gondola is driven by an electric hoist arranged on the top trolley.

The top trolley walks on the horizontal trolley track through human push; there is a lifting basket under the horizontal trolley, and the lifting basket moves laterally with the top trolley, and is lifted by an electric hoist. The inspectors can stand in the lifting basket to realize the inspection of the steel truss bridge body.

The driving device includes a motor, a reducer and a transmission shaft, the motor is connected to the input end of the transmission shaft through the reducer, and the output end of the transmission shaft is connected to the traveling wheels of the traveling support.

A movable guardrail is connected to the side of the lifting cage.

When checking the inner position of the beam body, manually rotate the movable guardrail 90 degrees, so that the movable guardrail can be used as a work widening platform for the inner inspection of the beam body.

Beneficial effects: the utility model changes the detection method of the traditional steel truss bridge body, avoids the impact on the traffic on the bridge deck during the detection process, is convenient and safe to operate, and the detection path can almost cover the entire beam body.

Description of drawings

The utility model will be explained by way of example and with reference to the accompanying drawings, wherein:

The overall structure schematic diagram of Fig. 1 the utility model;

Fig. 2 is a partial diagram of Fig. 1;

Figure 3 is an enlarged view of A in Figure 2;

Fig. 4 is an enlarged view of C in Fig. 2;

FIG. 5 is an enlarged view of B in FIG. 2 .

Detailed ways

As shown in Figures 1, 2, 3, 4, and 5: an upper chord inspection vehicle for steel truss bridges, the inspection vehicle includes a walking track 1, a horizontal truss 2, a driving device and a vertical truss 4, and the horizontal truss 2 is laid with a working platform 7, the horizontal truss 2 is placed on the walking track 1 through the walking wheels 5a provided at the lower end of the walking support 5, and the power output end of the driving device is connected with the walking wheels 5a of the walking support 5 , the vertical truss 4 is connected to both sides of the horizontal truss 2, the vertical truss 4 is provided with a lifting drive mechanism 4a and a lifting cage 4b, and the lifting cage 4b is connected to the power of the lifting driving mechanism 4a. output.

The inspection car also includes a top trolley 6, which moves along the trolley track 6a laid on the working platform 7, and a lifting basket 6b is suspended on the top trolley 6, and the lifting basket 6b passes through the top trolley 6 set on the electric hoist 6c drive.

Described drive unit comprises motor 3a, speed reducer 3b and transmission shaft 3c, and described motor 3a links to each other with described transmission shaft 3c input end by speed reducer 3b, and the walking of the output end of described transmission shaft 3c and described walking support 5 Wheel 5a is connected.

A movable guardrail 4c is connected to the side of the lifting cage 4b.

Wherein, the running track 1 is laid on the steel truss bridge body 9 through the rail splint 8 .

The characteristics and working process of the above structure are as follows:

When walking, the motor drives the reducer to work, drives the transmission shaft to work through each gear transmission and drives the left and right walking wheels 5a to rotate simultaneously, thereby realizing the forward and backward of walking. The left and right walking wheels 5a of the inspection car are all equipped with a brake system. When the inspection car needs to be braked, at first the walking brake can be realized by the motor self-locking device, and at the same time the hand brake system can also be used for braking.

The top trolley walks on the horizontal trolley track through human push; there is a lifting basket under the horizontal trolley, and the lifting basket moves laterally with the top trolley, and is lifted by an electric hoist. the

The vertical trusses on both sides of the horizontal truss are equipped with lifting cages, and the lifting cages are equipped with lifting drive mechanisms, and the cages are lifted and lowered by the lifting drive mechanisms, and move up and down in the vertical trusses. There is a movable guardrail on one side of the lifting cage. When checking the position of the inner side of the beam body, the movable guardrail can be rotated 90 degrees manually, so that the movable guardrail can be used as a widening platform for the inspection of the inner side of the beam body. The lifting cage is connected with the cement counterweight through fixed pulleys, which can reduce the pulling force when lifting the cage. When the electric lifting equipment is working. The winding inspection car has its own generator, and all mechanisms are fully electric and electronically controlled, and have the function of non-electric hand drive.

The working process is: the motor drives the reducer to work, and with the cooperation of the electric control system and the synchronous transmission shaft, the left and right walking wheels 5a are driven to advance or retreat along the traveling track. The top trolley walks on the horizontal trolley track through human propulsion, and the lifting basket under the top trolley is lifted up, down, and balanced by the electric hoist. The lifting cages on both sides move up and down in the vertical truss under the action of the electric lifting drive mechanism and counterweight. The staff can move in the truss working platform, the trolley basket on the top and the lifting cages on both sides, and carry out inspection and maintenance on the steel bridge truss nodes and other positions.

Claims (4)

1. An upper chord inspection vehicle for a steel truss bridge, characterized in that: the inspection vehicle includes a walking track (1), a horizontal truss (2), a driving device and a vertical truss (4), and the horizontal truss (2 ) is laid with a working platform (7), the horizontal truss (2) is placed on the walking track (1) through the walking wheels (5a) provided at the lower end of the walking support (5), and the power output end of the driving device is connected to the The walking wheels (5a) of the walking support (5) are connected, the vertical truss (4) is connected to both sides of the horizontal truss (2), and the vertical truss (4) is provided with a lifting drive mechanism (4a ) and a lifting cage (4b), the lifting cage (4b) is connected to the power output end of the lifting drive mechanism (4a). 2. The upper chord inspection vehicle for steel truss bridges according to claim 1, characterized in that: the inspection vehicle also includes a top trolley (6), and the top trolley (6) runs along the working platform (7) The trolley track (6a) laid on the top moves, and the lifting basket (6b) is suspended on the top trolley (6), and the lifting basket (6b) passes through the electric hoist (6c) set on the top trolley (6) drive. 3. A chord inspection vehicle for steel truss bridges according to claim 1 or 2, characterized in that: the drive device includes a motor (3a), a reducer (3b) and a drive shaft (3c), the The motor (3a) is connected to the input end of the transmission shaft (3c) through a reducer (3b), and the output end of the transmission shaft (3c) is connected to the travel wheel (5a) of the travel support (5). 4. The upper chord inspection vehicle for steel truss bridges according to claim 3, characterized in that movable guardrails (4c) are connected to the sides of the lifting cage (4b).

Images