CN103243647B - A kind of Novel hybrid bridge detection vehicle - Google Patents

Abstract

The invention discloses a novel hybrid bridge inspection vehicle, which includes a working arm, the working arm includes a box girder, a truss working platform and a hanging basket, and one end of the box girder is connected with the truss working platform through a lap frame , the other end is connected to the chassis, one end of the truss working platform is connected to the box girder, and the other end is connected to the hanging basket. The working arm of the new structure improves the comprehensive performance of the bridge inspection vehicle and realizes the unification of inspection range, inspection efficiency, bridge adaptability and safety.

Description

A New Hybrid Bridge Inspection Vehicle

technical field

The invention relates to a bridge inspection vehicle, in particular to a novel hybrid bridge inspection vehicle.

Background technique

The bridge inspection vehicle is used in conjunction with the inspection and maintenance of bridges. It can safely and efficiently send maintenance personnel to work below the bridge deck. It is expensive due to its large size and complex technology. The main performances of the evaluation bridge inspection vehicle include detection range, detection efficiency, bridge adaptability and safety. The working arm of the bridge inspection vehicle is the key component to ensure its performance. According to the different structural forms of the working arm, the bridge inspection vehicle can be divided into three types: truss type, folding type and hybrid type.

The truss-type bridge inspection vehicle has a large horizontal detection range, high detection efficiency and good safety, but the vertical detection depth is small, the bridge adaptability is poor, and the detection ability of cable-stayed bridges, suspension bridges, combined steel structure bridges and large-depth bridge piers is limited; The horizontal detection range and vertical detection depth of the foldable bridge inspection vehicle are large, and the bridge adaptability is strong, but the detection efficiency and safety are low. Due to the limitation of the working arm structure of the existing bridge inspection vehicle, it is difficult to achieve the unity of comprehensive performance such as inspection range, inspection efficiency, bridge adaptability and safety.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, provide a working arm with a new hybrid structure, and solve the contradiction that the comprehensive performance of the bridge inspection vehicle is difficult to unify.

To achieve the above object, the present invention adopts the following technical solutions:

A new type of hybrid bridge inspection vehicle, including a working arm, the working arm includes a box girder, a truss working platform and a hanging basket, one end of the box girder is connected to the truss working platform through a lap frame, and the other end is connected to the chassis , one end of the truss working platform is connected with the box girder, and the other end is connected with the hanging basket.

The box girder includes a slewing support arm, a main arm hydraulic cylinder I, a main arm, a main arm hydraulic cylinder II, a center of rotation, a vertical arm hydraulic cylinder I, a vertical arm, a vertical arm hydraulic cylinder II and a linkage mechanism , the lower end of the slewing support arm is connected to the chassis, the upper end of the slewing support arm is hinged to one end of the main arm, the other end of the main arm is articulated to the upper end of the slewing center, the lower end of the slewing center is articulated to the upper end of the vertical arm; the lower end of the vertical arm is articulated Lap joint frame; the lower end of the side of the slewing support arm is hinged with one end of the main arm hydraulic cylinder I, the other end of the main arm hydraulic cylinder I is hinged with the main arm, and the two ends of the main arm hydraulic cylinder II are respectively hinged on the main arm and the center of rotation. The two ends of the straight arm hydraulic cylinder I are respectively hinged on the center of rotation and the vertical arm, the linkage mechanism is respectively hinged on the vertical arm and the lap frame, and the two ends of the vertical arm hydraulic cylinder II are respectively hinged on the lower end of the vertical arm and the connecting frame. rod mechanism.

A ladder is arranged on the side of the vertical arm parallel to the vertical arm for escaping in an emergency and improving safety.

The truss working platform is composed of two or more trusses. Adjacent trusses are connected by telescopic hydraulic cylinders. The telescopic hydraulic cylinders drive the trusses to slide relative to each other, and the horizontal detection range of the working arm is large.

One end of the truss working platform is connected to the box girder through a fixed lap frame, the upper side of the other end of the truss working platform is hinged to the lifting guide rail, and the two adjacent edges of the hanging basket are installed in the lifting guide rail groove , and a group of lifting and leveling hydraulic cylinders are connected symmetrically on both sides of the hanging basket and the truss working platform. The two ends of the lifting and leveling hydraulic cylinders are respectively hinged on the hanging basket and the truss working platform, and the A rotatable fixing part is arranged on the lifting guide rail, and the fixing part is connected with the hanging basket or connected with the truss workbench. The hanging basket can slide along the lifting guide rail, the working arm has a high degree of freedom, good flexibility and good bridge adaptability.

The beneficial effects of the present invention are:

1. The working arm is composed of a box girder and a truss. The overall structure is a folding structure with a small size and a high degree of freedom. It can better pass through the steel cables of cable-stayed bridges and suspension bridges, and the bridge has strong adaptability.

2. The truss working platform can be rotated and lowered, which improves the vertical inspection depth.

3. The space inside the truss platform is large, and after one movement of the working arm, the staff can move and inspect, and the inspection efficiency is high.

4. Ladders are arranged in parallel with the vertical arms, which can be used to escape in an emergency, and the safety is good.

5. Realized the unification of bridge adaptability, detection range, detection efficiency and safety of a working arm of the bridge inspection vehicle.

6. The above-mentioned fixing parts realize the mutual movement between the unlocking lifting guide rail and the truss working platform or the hanging basket, so as to level or lift the hanging basket and improve the detection range of the working arm.

Description of drawings

Fig. 1 is a structural schematic diagram of the lifting of the hanging basket when the truss working platform of the present invention is operated horizontally.

Fig. 2 is a structural schematic view of the truss working platform of the present invention when it is lowered.

Fig. 3 is a partially enlarged view of the distal end of the truss working platform of the present invention.

Figure 4 is a structural diagram of the fixture.

In the figure, 1. Auxiliary support, 2. Chassis, 3. Slewing support arm, 4. Main arm hydraulic cylinder Ⅰ, 5. Main arm, 6. Main arm hydraulic cylinder Ⅱ, 7. Rotation center, 8. Vertical arm hydraulic pressure Cylinder Ⅰ, 9, vertical arm, 10, ladder, 11, vertical arm hydraulic cylinder Ⅱ, 12, linkage mechanism, 13, lap frame, 14, truss working platform, 15, truss telescopic hydraulic cylinder, 16, lifting Lifting and leveling hydraulic cylinder, 17, fixing piece, 18, lifting guide rail, 19, hanging basket.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Example 1

As shown in Figure 1-4, a bridge inspection vehicle with a mixed working arm includes a chassis 2 and a working arm. The lower front end of the chassis 2 is provided with a crawler-type auxiliary support 1. The working arm is composed of a box girder part and a truss Partial composition.

In the box beam part, the lower end of the slewing support arm 3 is connected to the chassis 2, the upper end of the slewing support arm 2 is hinged with one end of the main arm 5, the lower end of the side of the slewing support arm 2 is hinged with one end of the main arm hydraulic cylinder I4, and the main arm hydraulic cylinder I4 is hinged. The other end of the main arm is hinged with the main arm 5, the other end of the main arm 5 is hinged with the upper end of the rotary center 7, the two ends of the main arm hydraulic cylinder II6 are respectively hinged with the main arm 5 and the rotary center 7, the lower end of the rotary center 7 is connected with the The upper end of the vertical arm 9 is hinged, the two ends of the vertical arm hydraulic cylinder I8 are respectively hinged on the center of rotation 7 and the vertical arm 9, a ladder 10 is arranged parallel to one side of the vertical arm 9, and the lower end of the vertical arm 9 is hinged to the lap frame 13 , the link mechanism 12 is respectively hinged on the vertical arm 9 and the bridge frame 13, and the two ends of the vertical arm hydraulic cylinder II11 are respectively hinged on the lower end of the vertical arm 9 and the link mechanism 12.

The truss working platform 14 is connected to the box girder part through the lap frame 13 fixed thereto, the upper side of the far end of the truss working platform 14 is hinged with the lifting guide rail 18, and the two adjacent edges of the hanging basket 19 are installed on the lifting guide rail 18 In the tank, the two ends of the lifting and leveling hydraulic cylinder 16 are respectively hinged on the hanging basket 19 and the truss working platform 14. There are two groups of lifting and leveling hydraulic cylinders 16, which are symmetrically arranged between the hanging basket 19 and the truss working platform 14. sides.

A fixing part 17 is arranged between the hanging basket 19, the lifting guide rail 18 and the truss working platform 14. As shown in FIG. 3, the fixing part 17 fixes the truss working platform 14 and the lifting guide rail 18. Drive the hanging basket 19 to slide up and down along the lifting guide rail 18.

The deployment of the vertical arm 9 is completed by the cooperation of the main arm hydraulic cylinder II6 and the vertical arm hydraulic cylinder I8.

The deployment of the truss platform 14 is completed by the vertical arm hydraulic cylinder II11.

The expansion and contraction of the truss working platform 14 is driven by the truss telescopic hydraulic cylinder 15 to complete.

Example 2

As another embodiment of the present invention, as shown in Fig. 2, the vertical arm hydraulic cylinder II11 drives the truss working platform 14 to lower, the fixing part 17 fixes the lifting guide rail 18 and the hanging basket 19, and the lifting and leveling hydraulic cylinder 16 drives the crane. The basket rotates relative to the truss working platform 14, and the hanging basket 19 remains horizontal, which has satisfied the large-depth detection operations of bridge piers and the like.

Claims (2)

1. A new hybrid bridge inspection vehicle, comprising a working arm, characterized in that: the working arm comprises a box girder, a truss working platform and a hanging basket, and one end of the box girder works through a lap frame and a truss The platform is connected, and the other end is connected to the chassis; one end of the truss working platform is connected to the box girder through a fixed lap frame, the upper side of the other end of the truss working platform is hinged to the lifting guide rail, and the hanging basket is adjacent to two edges The sides are installed in the lifting guide rail groove, and a group of lifting and leveling hydraulic cylinders are symmetrically connected to both sides of the hanging basket and the truss working platform. The two ends of the lifting and leveling hydraulic cylinders are respectively hinged on the working on the platform, and a rotatable fixing part is provided on the lifting guide rail, and the fixing part is connected with the hanging basket, or connected with the truss workbench; the box girder includes a slewing support arm, a main arm Hydraulic cylinder I, main arm, main arm hydraulic cylinder II, center of rotation, vertical arm hydraulic cylinder I, vertical arm, vertical arm hydraulic cylinder II and linkage mechanism, the lower end of the slewing support arm is connected to the chassis, and the rotation The upper end of the support arm is hinged with one end of the main arm, the other end of the main arm is hinged with the upper end of the rotary center, the lower end of the rotary center is hinged with the upper end of the vertical arm; the lower end of the vertical arm is hinged with the lap frame; One end of the cylinder I is hinged, the other end of the main arm hydraulic cylinder I is hinged with the main arm, the two ends of the main arm hydraulic cylinder II are respectively hinged on the main arm and the center of rotation, and the two ends of the vertical arm hydraulic cylinder I are respectively hinged on the center of rotation and the center of rotation. On the vertical arm, the connecting rod mechanism is respectively hinged on the vertical arm and the splice frame, and the two ends of the vertical arm hydraulic cylinder II are respectively hinged on the lower end of the vertical arm and the connecting rod mechanism; the side of the vertical arm is parallel to the vertical Arrange a ladder with straight arms. 2. The new hybrid bridge inspection vehicle according to claim 1, characterized in that: the truss working platform is composed of two or more trusses, the adjacent trusses are connected by telescopic hydraulic cylinders, and the telescopic hydraulic cylinders drive The truss slides relative to each other.