Device for dismantling shield tunnel track

Abstract

The utility model belongs to the technical field of shield tunnel construction, and solves the problems that time and labor are wasted when a track is dismantled, and duct pieces are easy to deform when bolts at the tops of the duct pieces are frequently dismantled. The device for dismantling the shield tunnel track comprises a transportation mechanism and a hoisting mechanism, the transportation mechanism comprises a battery car handpiece and a flat car connected to the tail end of the battery car handpiece; the hoisting mechanism is arranged at the upper end of the front portion of the flat car and comprises a base, a hoisting frame and a winch, the hoisting frame is rotationally connected to the flat car through the base, and the winch is installed on the hoisting frame and can unwind and wind a hoisting steel wire rope; and barrier strips for preventing the shield track from sliding off are arranged on the two sides of the flat car. The device is simple in structure, can accelerate the dismounting speed of the track in the tunnel, improves the working efficiency, and avoids the problem that the duct piece deforms easily due to frequent dismounting of the top bolt of the duct piece.

Description

Technical Field

[0001] The utility model belongs to the technical field of shield tunnel construction, and in particular relates to a device for dismantling a shield tunnel track. Background Art

[0002] In rail transit construction, after the tunnel shield construction is completed, the original electric car track needs to be dismantled.

[0003] At present, two methods are generally used: manual handling or using a hand chain hoist to fix the top segment, then using an electric hoist hook to hook the track for lifting, and dragging it to a flatbed truck for transportation. However, these two methods are time-consuming and labor-intensive, and frequent removal of the top bolts of the segment can easily cause the segment to deform. Utility Model Content

[0004] In order to solve at least one of the above technical problems existing in the prior art, the utility model provides a device for dismantling a shield tunnel track.

[0005] The utility model is implemented by the following technical scheme: a device for dismantling the track of a shield tunnel, comprising a transport mechanism and a hoisting mechanism; the transport mechanism comprises a battery vehicle head and a flatbed vehicle connected to its rear end; the hoisting mechanism is arranged at the front upper end of the flatbed vehicle, the hoisting mechanism comprises a base, a hoisting frame and a winch, the hoisting frame is rotatably connected to the flatbed vehicle via the base, the winch is installed on the hoisting frame and can realize the unwinding and retracting of the hoisting wire rope; baffles are arranged on both sides of the flatbed vehicle to prevent the shield track from sliding.

[0006] Preferably, the flatbed truck includes a middle flatbed truck and a rear flatbed truck, wherein the lifting mechanism is arranged at the upper end of the middle flatbed truck and can rotate in a horizontal plane, the rear end plate of the rear end flatbed truck extends backward, and the front end plate and the extension of the rear end plate of the rear end flatbed truck are each provided with two baffle bars.

[0007] Preferably, the lower end of the hanging frame is rotatably connected to the upper end of the base through a slewing mechanism.

[0008] Preferably, the slewing mechanism is a rolling bearing installed at the connection between the hanging frame and the base.

[0009] Preferably, the front end of the battery vehicle, the middle flatbed vehicle and the rear flatbed vehicle are connected by a steel connecting plate.

[0010] Preferably, the winch is controlled by a remote controller to electrically unwind and retract the hoisting wire rope.

[0011] Preferably, when the hoisting frame is located at the hoisting position, the center line of its horizontal projection coincides with the center line of the horizontal projection of the flatbed truck.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device has a simple structure, can speed up the removal of tracks in tunnels, improve work efficiency, and avoid problems such as frequent removal of bolts on top of segments that easily cause deformation of the segments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a front view of the overall structure of the device;

[0016] Figure 2 It is a top view of the hoisting structure of the device;

[0017] Figure 3 It is the operation flow chart of this device (connected with the shield track);

[0018] Figure 4 This is the operation flow chart of the device (recovering the shield track);

[0019] Figure 5 This is the operation flow chart of the device (the shield track is placed on a flatbed car);

[0020] In the figure: 1-battery vehicle head; 2.1-middle flatbed vehicle; 2.2-tail flatbed vehicle; 3-base; 4-hoisting frame; 5-winch; 6-bar; 7-rolling bearing; 8-steel connecting plate; 9-remote control; 10-hoisting wire rope; 11-shield track. DETAILED DESCRIPTION

[0021] Combined with the drawings in the embodiments of the utility model, the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented, so they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0023] The utility model provides an embodiment:

[0024] like Figure 1 , Figure 2 As shown, a device for dismantling the track of a shield tunnel includes a transport mechanism and a hoisting mechanism; the transport mechanism includes a battery vehicle head 1 and a flatbed vehicle connected to its rear end; the hoisting mechanism is arranged at the front upper end of the flatbed vehicle, and the hoisting mechanism includes a base 3, a hoisting frame 4 and a winch 5, the hoisting frame 4 is rotatably connected to the flatbed vehicle via the base 3, the winch 5 is installed on the hoisting frame 4 and can realize the unwinding and retracting of the hoisting wire rope 10; retaining bars 6 are arranged on both sides of the flatbed vehicle to prevent the shield track from slipping.

[0025] In this embodiment, the flatbed truck includes an intermediate flatbed truck 2.1 and a rear flatbed truck 2.2, wherein the lifting mechanism is arranged at the upper end of the intermediate flatbed truck 2.1 and can rotate in a horizontal plane, the rear end plate of the rear end flatbed truck 2.2 extends backward, and the front end plate and the extension of the rear end plate of the rear end flatbed truck 2.2 are each provided with two baffle bars 6.

[0026] The battery car head 1, the middle flatbed car 2.1, and the tail flatbed car 2.2 are connected by a steel connecting plate 8. The lower end of the hoisting frame 4 is rotatably connected to the upper end of the base 3 through a slewing mechanism; the slewing mechanism is a rolling bearing 7 installed at the connection between the hoisting frame 4 and the base 3. The hoisting machine 5 is controlled by a remote controller 9 to realize the electric unwinding and retraction of the hoisting wire rope 10. When the hoisting frame 4 is in the hoisting position, the center line of its horizontal projection coincides with the center line of the horizontal projection of the flatbed car.

[0027] like Figures 3 to 5 The specific steps are as follows:

[0028] S1: When performing shield track removal operation, the shield track removal device moves backward to the track removal location in the tunnel, controls the remote controller 9 to release the hoisting wire rope 10 in the winch 5, and hooks the hook of the hoisting wire rope 10 into the bolt hole on one side of the shield track 11;

[0029] S2: Control the remote controller 9 to retract the hoisting wire rope 10 and recover the shield track 11 onto the flatbed truck;

[0030] S3: Place the shield track 11 on a flatbed truck, transport it to the lifting port by the battery car head 1, turn the lifting frame 4 to one side, lift out the shield track 11, and then turn the lifting frame 4 back, continue to reverse to the track removal location, and repeat the work until the shield track 11 is removed.

[0031] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A device for removing track from a shield tunnel, characterized in that: The invention comprises a transport mechanism and a hoisting mechanism; the transport mechanism comprises a battery vehicle head (1) and a flatbed vehicle connected to the rear end thereof; the hoisting mechanism is arranged at the front upper end of the flatbed vehicle, the hoisting mechanism comprises a base (3), a hoisting frame (4) and a winch (5); the hoisting frame (4) is rotatably connected to the flatbed vehicle via the base (3); the winch (5) is installed on the hoisting frame (4) and can realize the unwinding and retracting of the hoisting wire rope (10); and baffle bars (6) are arranged on both sides of the flatbed vehicle to prevent the shield track from sliding off.

2. The device for removing track in a shield tunnel according to claim 1, characterized in that: The flatbed truck comprises a middle flatbed truck (2.1) and a rear flatbed truck (2.2), wherein a lifting mechanism is arranged at the upper end of the middle flatbed truck (2.1) and can rotate in a horizontal plane, a rear end plate of the rear end flatbed truck (2.2) extends rearward, and two blocking bars (6) are respectively arranged on the front end plate and the extension of the rear end plate of the rear end flatbed truck (2.2).

3. The device for removing track in a shield tunnel according to claim 1, characterized in that: The lower end of the hanging frame (4) is rotatably connected to the upper end of the base (3) via a slewing mechanism.

4. The device for removing track in a shield tunnel according to claim 3, characterized in that: The slewing mechanism is a rolling bearing (7) installed at the connection between the hanging frame (4) and the base (3).

5. The device for removing track in a shield tunnel according to claim 2, characterized in that: The front end (1) of the battery vehicle, the middle flatbed vehicle (2.1) and the rear flatbed vehicle (2.2) are connected via a steel connecting plate (8).

6. The device for removing track in a shield tunnel according to claim 1, characterized in that: The winch (5) is controlled by a remote controller (9) to realize the electric unwinding and retracting of the hoisting wire rope (10).

7. The device for removing track in a shield tunnel according to claim 1, characterized in that: When the hoisting frame (4) is located at the hoisting position, the center line of its horizontal projection coincides with the center line of the horizontal projection of the flatbed vehicle.

Images