Bridge lateral inspection vehicle hoisting method

Abstract

The invention discloses a bridge lateral inspection vehicle hoisting method in the technical field of bridge overhaul, which comprises the following steps: dismantling an inspection vehicle outer side rail mounted at the end part of a section of bridge by using bridge floor hoisting equipment, hoisting to a bridge floor, and mounting into a prepared lateral inspection vehicle driving box; a plurality of lifting points are respectively arranged on left and right portal frame cross beams of the lateral inspection vehicle; the lateral inspection vehicle is lowered to the position below the inspection vehicle track through bridge floor hoisting equipment, and all the hoisting points are connected with the hoisting device and the bridge floor hoisting equipment to form a hoisting conversion system; the position of the lateral inspection vehicle is adjusted through cooperation of the hoisting conversion system and the bridge floor hoisting equipment, and after a driven wheel of the lateral inspection vehicle is arranged at a set position, an outer side rail in a driving box of the lateral inspection vehicle is connected with a rail connecting base. The problems that in a traditional inspection vehicle hoisting mode, an inspection vehicle is not hoisted in place, and a driven wheel interferes with a rail are solved, and the construction cost is saved.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge maintenance, and more specifically, relates to a method for hoisting a bridge lateral inspection vehicle. Background Art

[0002] With the continuous advancement of bridge construction technology, the requirements for bridge maintenance are becoming increasingly stringent. As part of bridge maintenance equipment, bridge inspection vehicles have evolved into various types. Traditional bridge inspection vehicles are typically located at the base of the bridge, but some bridges, due to their unique design, also have inspection vehicles installed on both sides. Lateral inspection vehicles differ significantly from traditional bottom-of-beam inspection vehicles in both structure and operation, necessitating a different installation process.

[0003] Traditional installation techniques for bottom-beam inspection vehicles typically involve a bottom-up lifting method using a truck crane or winch. With traditional lifting methods, if the lifting position is high, the truck crane cannot lift the vehicle into position. Hoisting with a winch is limited by the river and sea environments and requires the cooperation of ships. Lateral inspection vehicles are arranged on the double tracks on the side of the bridge, with a small track gauge. In addition to the drive box, the lateral inspection vehicle also has a driven wheel. Since the driven wheel needs to be placed on the upper surface of the lower flange plate of the inner track, using traditional truck crane or winch lifting methods will cause the driven wheel of the inspection vehicle to interfere with the track, preventing the driven wheel from being successfully installed on the upper surface of the lower flange plate of the track. Summary of the Invention

[0004] The purpose of the present invention is to address the above shortcomings and provide a method for hoisting a bridge lateral inspection vehicle. It adopts an installation method of lowering the vehicle from the bridge deck. After the outer track of the inspection vehicle is removed, the driven wheel of the lateral inspection vehicle is preferentially installed on the inner track of the inspection vehicle. This solves the problem of the inspection vehicle not being hoisted into place and the interference between the driven wheel and the track under the traditional inspection vehicle hoisting method, saving construction costs.

[0005] To achieve the above object, the present invention is implemented through the following technical solutions: The present invention provides a method for hoisting a bridge lateral inspection vehicle, comprising: Use the bridge deck hoisting equipment to remove a section of the inspection vehicle outer track installed at the end of the bridge, hoist it to the bridge deck, and install it into the prepared lateral inspection vehicle drive box; Several lifting points are set on the left and right gantry beams of the lateral inspection vehicle; Use the bridge deck hoisting equipment to lower the lateral inspection vehicle to the bottom of the inspection vehicle track, and connect each lifting point to the lifting device and the bridge deck hoisting equipment to form a hoisting conversion system; The position of the lateral inspection vehicle is adjusted by cooperating with the hoisting conversion system and the bridge deck hoisting equipment. After the driven wheel of the lateral inspection vehicle is placed in the set position, the outer track in the drive box of the lateral inspection vehicle is connected to the track connecting seat.

[0006] Furthermore, the preparation work for the lateral inspection vehicle is carried out on the bridge deck, including the assembly of the lateral inspection vehicle.

[0007] Furthermore, the bridge deck hoisting equipment is a truck crane or crawler crane arranged on the bridge deck.

[0008] Furthermore, four lifting points are set on each of the left and right gantry beams, of which two lifting points on each of the left and right gantry beams are connected to the hooks of the bridge deck lifting equipment, and the remaining four lifting points are each connected to a lifting device, and the tops of the four lifting devices are all connected to the bridge deck lifting equipment.

[0009] Furthermore, the two lifting devices close to the inner inspection vehicle track bypass the inner track and are connected to the lifting points on the gantry beam close to the inner track, and the two lifting devices close to the outer inspection vehicle track are connected to the lifting points on the gantry beam close to the outer track.

[0010] Furthermore, the hook of the bridge deck hoisting equipment is connected to the lifting point through a first steel wire rope, and the lifting device is connected to the lifting point and the hook of the bridge deck hoisting equipment through a second steel wire rope respectively, and the length of the first steel wire rope is greater than that of the second steel wire rope.

[0011] Furthermore, the adjusting the position of the lateral inspection vehicle by cooperating with the hoisting conversion system and the bridge deck hoisting equipment includes: Pull each lifting device until it is subjected to force, then start to pull the lifting device synchronously at a uniform speed to ensure that the lateral inspection vehicle is lifted at a uniform speed. At the same time, the bridge deck lifting equipment is used to coordinate the position of the lateral inspection vehicle to ensure that the lifting conversion system does not interfere with the inner track.

[0012] Furthermore, the lifting device is a manual hoist or an electric hoist.

[0013] Furthermore, the lateral inspection vehicle is placed along the bridge direction by bridge deck hoisting equipment before being lowered.

[0014] Furthermore, before lowering the lateral inspection vehicle, the bridge deck hoisting equipment first lifts the lateral inspection vehicle off the ground to a preset height and then leaves it to rest for a preset time, observing its hoisting status and lowering it after confirming that it is correct.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The bridge lateral inspection vehicle hoisting method of the present invention adopts an installation method of lowering the vehicle from the bridge deck. After the outer track of the inspection vehicle is removed, the driven wheel of the inspection vehicle is preferentially installed on the inner track of the inspection vehicle. This solves the problem of the inspection vehicle not being hoisted into place and the interference between the driven wheel and the track in the traditional inspection vehicle hoisting method. The method of the present invention only requires one bridge deck lifting device (truck crane) and four lifting devices for lifting conversion to complete the lifting of the lateral inspection vehicle, saving construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the layout of the bridge lateral inspection vehicle; Figure 2 This is a schematic diagram of the cross section of the bridge steel beam; Figure 3 This is a schematic diagram of the inspection vehicle track layout; Figure 4 This is a schematic diagram of the process of arranging a mobile crane in the method according to an embodiment of the present invention; Figure 5 Schematic diagram of the process of removing the outer rail of the inspection vehicle in the method according to an embodiment of the present invention; Figure 6 Schematic diagram of the process of assembling a lateral inspection vehicle in the method according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the process of arranging various hanging points in the method according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the process of lowering the lateral inspection vehicle in the method according to an embodiment of the present invention; Figure 9 A schematic diagram of the process of connecting and composing a hoisting conversion system in the method according to an embodiment of the present invention; Figure 10 Schematic diagram of the process of pulling the hand chain hoist in the method according to an embodiment of the present invention; Figure 11 Schematic diagram of the process of restoring the connection between the outer rail and the rail connecting seat in the method according to an embodiment of the present invention.

[0017] In the picture: 1. Lateral inspection vehicle; 2. Bridge steel beam; 3. Outer track; 4. Inner track; 5. Truck crane; 6. Hand hoist. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings and specific examples.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0021] In the prior art, the arrangement of the lateral inspection vehicle 1 on the bridge is as follows: Figure 1 As shown, the cross section of the bridge steel beam 2 is as follows Figure 2 As shown, the layout of the inspection vehicle track is as follows Figure 3 shown.

[0022] Example 1: This embodiment provides a method for hoisting a bridge lateral inspection vehicle, which specifically includes the following steps: S1: Construction Preparation Preparation of tools and materials: including a truck crane 5, four conversion hoisting hand hoists 6, wire ropes, wrenches, five-point safety belts, etc.

[0023] S2: If Figure 4 As shown, a car crane 5 is arranged on the bridge deck; Figure 5 As shown, a car crane 5 is used to remove the outer rail 3 of the inspection vehicle installed on a section of the bridge and lift it to the bridge deck. In this step, the outer rail 3 at the end of the bridge needs to be selected.

[0024] S3: If Figure 6 As shown, the lateral inspection vehicle 1 is assembled on the bridge deck, and the disassembled outer track 3 is installed into the drive box of the lateral inspection vehicle 1 and fixed.

[0025] S4: Use the car crane 5 to place the lateral inspection vehicle 1 along the bridge direction, and set up 4 lifting points on the left and right gantry beams of the inspection vehicle, such as Figure 7 As shown, two lifting points are selected from each of the left and right gantry beams and connected to the hook of the truck crane 5 with four long steel wire ropes. A short steel wire rope is reserved for each of the remaining four lifting points. Four more short steel wire ropes are prepared on the hook of the truck crane 5 and connected to the hook of the hand hoist 6. The lifting point arrangement is completed.

[0026] S5: If Figure 8 As shown, the vehicle crane 5 lifts the hook to lift the lateral inspection vehicle 1 10 cm off the ground and then leaves it to stand for 10 minutes to observe its lifting status. After confirming that it is correct, the lateral inspection vehicle 1 is lowered to the bottom of the inspection vehicle track.

[0027] S6: As Figure 9 As shown, the two hand hoists 6 near the inner track 4 are passed around the inner track 4 and connected to the two short steel wire ropes prepared on the gantry beam near the inner track 4; the two outer hand hoists 6 are connected to the two short steel wire ropes prepared on the outer side of the gantry beam, and the lifting conversion system is arranged.

[0028] S7: As Figure 10 As shown, slowly pull the four hand hoists 6 until they are subjected to force, and then start to pull the hand hoists 6 at a uniform speed and synchronously to ensure that the lateral inspection vehicle 1 is lifted at a uniform speed. During this period, the mobile crane 5 is required to cooperate in moving the position of the lateral inspection vehicle 1 to ensure that the lifting conversion system does not interfere with the inner track 4.

[0029] S8: Figure 11 As shown, after the lateral inspection vehicle 1 is lifted until the driven wheels are placed on the lower flange plate of the inner track 4, the outer track 3 in the inspection vehicle drive box is connected to the track connecting seat and restored, completing the installation operation of the entire lateral inspection vehicle 1.

[0030] While various embodiments of the present invention have been described above, the foregoing description is intended to be illustrative and non-exhaustive, and is not intended to be limiting of the disclosed embodiments. Numerous modifications and variations will be apparent to those skilled in the art without departing from the scope and technical principles of the described embodiments, and such modifications and variations should be considered within the scope of the present invention.

Claims

1. A method for hoisting a bridge lateral inspection vehicle, characterized in that: include: Use the bridge deck hoisting equipment to remove a section of the inspection vehicle outer track installed at the end of the bridge, hoist it to the bridge deck, and install it into the prepared lateral inspection vehicle drive box; Several lifting points are set on the left and right gantry beams of the lateral inspection vehicle; Use the bridge deck hoisting equipment to lower the lateral inspection vehicle to the bottom of the inspection vehicle track, and connect each lifting point to the lifting device and the bridge deck hoisting equipment to form a hoisting conversion system; The position of the lateral inspection vehicle is adjusted by cooperating with the hoisting conversion system and the bridge deck hoisting equipment. After the driven wheel of the lateral inspection vehicle is placed in the set position, the outer track in the drive box of the lateral inspection vehicle is connected to the track connecting seat.

2. The method for hoisting a bridge lateral inspection vehicle according to claim 1, characterized in that: The preparation work for the lateral inspection vehicle is carried out on the bridge deck, which includes assembling the lateral inspection vehicle.

3. The method for hoisting a bridge lateral inspection vehicle according to claim 1, characterized in that: The bridge deck hoisting equipment is a truck crane or crawler crane arranged on the bridge deck.

4. The method for hoisting a bridge lateral inspection vehicle according to claim 1, characterized in that: Four lifting points are respectively arranged on the left and right gantry cross beams, wherein two lifting points on each of the left and right gantry cross beams are connected to the hooks of the bridge deck lifting equipment, and the remaining four lifting points are each connected to the hooks of the bridge deck lifting equipment through a lifting device.

5. The method for hoisting a bridge lateral inspection vehicle according to claim 4, characterized in that: The two lifting devices near the inner inspection vehicle track bypass the inner track and are connected to the lifting points on the gantry beam near the inner track, and the two lifting devices near the outer inspection vehicle track are connected to the lifting points on the gantry beam near the outer track.

6. The method for hoisting a bridge lateral inspection vehicle according to claim 4, characterized in that: The hook of the bridge deck hoisting equipment is connected to the lifting point through a first steel wire rope, and the lifting device is connected to the lifting point and the hook of the bridge deck hoisting equipment through a second steel wire rope respectively. The length of the first steel wire rope is greater than that of the second steel wire rope.

7. The method for hoisting a bridge lateral inspection vehicle according to claim 4, characterized in that: The method of adjusting the position of the lateral inspection vehicle by cooperating with the hoisting conversion system and the bridge deck hoisting equipment includes: Pull each lifting device until it is subjected to force, then start to pull the lifting device synchronously at a uniform speed to ensure that the lateral inspection vehicle is lifted at a uniform speed. At the same time, the bridge deck lifting equipment is used to coordinate the position of the lateral inspection vehicle to ensure that the lifting conversion system does not interfere with the inner track.

8. The method for hoisting a bridge lateral inspection vehicle according to any one of claims 4 to 7, characterized in that: The lifting device is a manual hoist or an electric hoist.

9. The method for hoisting a bridge lateral inspection vehicle according to claim 1, characterized in that: Before the lateral inspection vehicle is lowered, it is first placed along the bridge direction by means of a bridge deck hoisting device.

10. The method for hoisting a bridge lateral inspection vehicle according to claim 1, characterized in that: Before lowering the lateral inspection vehicle, the bridge deck hoisting equipment first lifts the lateral inspection vehicle off the ground to a preset height and then leaves it to rest for a preset time, observing its hoisting status and lowering it after confirming that it is correct.

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