Hoisting device of pipe piece for vertically tunneling underground garage

Abstract

The utility model discloses a hoisting device of a pipe piece for vertically tunneling an underground garage, which comprises a crane and a hoisting tool, the hoisting tool is hoisted by the crane through a steel cable, the hoisting tool comprises a horizontal frame body and a vertical frame body, and the side edge of the horizontal frame body is vertically connected to the top edge of the vertical frame body to form an inverted L shape; at least one vertical limiting hole is formed in the top of the pipe piece, and two horizontal limiting holes are formed in the outer arc surface of the pipe piece; the horizontal frame body is provided with a set of vertical telescopic grabbing columns corresponding to the forming positions of the vertical limiting holes, and the vertical frame body is provided with two sets of horizontal telescopic grabbing columns corresponding to the forming positions of the two horizontal limiting holes respectively. The pipe piece lifting appliance has the advantages that the telescopic grabbing columns are respectively arranged on the horizontal frame body and the vertical frame body of the lifting appliance, and the eccentric rotating wheels are used for driving the grabbing columns to do reciprocating telescopic motion, so that position limitation and automatic lifting of vertical limiting holes and horizontal limiting holes of pipe pieces are realized.

Description

Technical Field

[0001] This utility model relates to the field of tunnel segment technology, specifically to a hoisting device for tunnel segments used in vertically excavated underground parking garages. Background Technology

[0002] Shield tunnel segments are the outermost barrier of a tunnel or shaft, bearing the responsibility of resisting soil pressure, groundwater pressure, and some special loads.

[0003] After the tunnel boring machine (TBM) segments are produced on the assembly line, the finished segments need to be demolded, placed for natural cooling, transported to a water curing pool for curing, transported to a finished product storage yard for curing, subjected to a type test by flipping, and then flipped, loaded onto trucks and transported to the subway construction site for use. During this process, multiple lifting operations are required. The position of the TBM segments needs to be adjusted from a horizontal position with the inner arc face down to a vertical position, then adjusted to a horizontal position with the inner arc face down for testing, and finally adjusted to an upright position with the inner arc face up before being lifted, loaded onto trucks, and transported out.

[0004] For large-diameter tunnel segments, in addition to their enormous size, their weight is also considerable. Therefore, when large-diameter tunnel segments are loaded onto trucks and transported to the construction site for assembly, there are significant construction difficulties in flipping and hoisting them. Currently, the most common method is to use a hoisting mechanism to suspend and flip them, then place them on the ground and erect them, and then hoist and install them again to facilitate their placement in the designated location for assembly. However, this method is cumbersome and requires the hoisting mechanism to be replaced multiple times. Summary of the Invention

[0005] The purpose of this utility model is to provide a hoisting device for tunnel segments used in vertically excavated underground parking garages, addressing the shortcomings of the prior art. This hoisting device is achieved by setting telescopic grabbing columns on the horizontal and vertical frames of the hoisting tool, respectively, and corresponding to the positions of the pre-set vertical and horizontal limiting holes on the tunnel segments, so that the telescopic grabbing columns can extend into the limiting holes of the tunnel segments to form a limiting grabbing mechanism.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A hoisting device for tunnel segments used in vertically excavated underground parking garages includes a crane and a hoisting device. The crane hoists the hoisting device via steel cables. The hoisting device includes a horizontal frame and a vertical frame. The side edges of the horizontal frame are vertically connected to the top edge of the vertical frame, forming a "┌" shape. At least one vertical limiting hole is provided on the top of the tunnel segment, and two horizontal limiting holes are provided on the outer arc surface of the tunnel segment. A set of vertical telescopic gripping columns are provided on the horizontal frame, corresponding to the opening positions of the vertical limiting holes. Two sets of horizontal telescopic gripping columns are provided on the vertical frame, each corresponding to the opening positions of the two horizontal limiting holes.

[0008] The telescopic gripping column includes a bracket, an eccentric rotating wheel, a drive motor, a gripping column, a sliding sleeve, and a pair of clamping wheels. The bracket is fixedly installed on the lifting device. The drive motor and the eccentric rotating wheel are installed on the top of the bracket. The output shaft of the drive motor is connected to the eccentric shaft of the eccentric rotating wheel and drives it to rotate. One end of the gripping column is slidably disposed within the sliding sleeve. The other end of the gripping column is provided with the pair of clamping wheels and is clamped and engaged with the outer rim of the eccentric rotating wheel. The rotation of the eccentric rotating wheel drives the pair of clamping wheels and the gripping column to perform telescopic movement under the limitation of the sliding sleeve.

[0009] The sliding sleeve of the telescopic gripping column, which is mounted on the horizontal frame, is positioned corresponding to the vertical limiting hole.

[0010] The sliding sleeve of the telescopic gripping column, which is mounted on the vertical frame, is positioned corresponding to the horizontal limiting hole.

[0011] The advantages of this utility model are: by setting telescopic gripping columns on the horizontal and vertical frames of the lifting device respectively, and driving the gripping columns to reciprocate telescopic motion through an eccentric rotating wheel, the position of the vertical and horizontal limiting holes of the pipe segment is limited and the automatic lifting is achieved. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the lifting device approaching the tunnel segment in this utility model;

[0013] Figure 2 This is a schematic diagram of the telescopic gripping column on the lifting device of this utility model after it extends into the horizontal and vertical limiting holes inside the tube segment for gripping.

[0014] Figure 3 This is a three-dimensional schematic diagram of the tube segment in this utility model.

[0015] like Figure 1-3 The markings in the diagram are as follows:

[0016] Segment 1, vertical limiting hole 11, horizontal limiting hole 12;

[0017] 2. Lifting equipment; 21. Horizontal frame; 22. Vertical frame;

[0018] Telescopic gripping column 3, bracket 31, eccentric rotating wheel 32, eccentric rotating shaft 33, gripping column 34, clamping wheel pair 35, sliding sleeve 36. Detailed Implementation

[0019] The features and other related features of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art:

[0020] Example: Figure 1 , 2 As shown in Figure 3, this embodiment specifically relates to a hoisting device for tunnel segments used in vertically excavated underground parking garages. The hoisting device includes a crane and a lifting device 2. The crane is located on the ground of the construction site and hoists the lifting device 2 via steel cables. The lifting device 2 is used to limit and fix the tunnel segment 1 in a vertical position before grabbing and hoisting it. In this embodiment, a vertical limiting hole 11 is provided at the center of the top surface of the tunnel segment 1, and two horizontal limiting holes 12 are provided on the outer arc surface of the tunnel segment 1.

[0021] like Figure 1 , 2 As shown in Figure 3, the lifting device 2 includes a horizontal frame 21 and a vertical frame 22. The side edges of the horizontal frame 21 are vertically connected to the top edge of the vertical frame 22, forming a "┌" shape, and the two can form an integral structure. A set of vertical telescopic gripping columns 3 are provided on the horizontal frame 21, corresponding to the opening positions of the vertical limiting holes 11. Two sets of horizontal telescopic gripping columns 3 are provided on the vertical frame 22, each corresponding to the opening positions of two horizontal limiting holes 12. The telescopic gripping columns 3 on the horizontal frame 21 extend downwards by controlling their gripping columns 34 to enter the vertical limiting holes 11. The telescopic gripping columns 3 on the vertical frame 22 extend horizontally inwards by controlling their gripping columns 34 to enter the horizontal limiting holes 12. Through vertical and horizontal limiting, a gripping posture is formed on the pipe segment, facilitating lifting.

[0022] like Figure 1 , 2As shown in Figure 3, taking the telescopic gripping column 3 installed on the horizontal frame 21 as an example, the structure of the telescopic gripping column 3 is described as follows: The telescopic gripping column 3 includes a bracket 31, an eccentric rotating wheel 32, a drive motor, a gripping column 34, a sliding sleeve 36, and a clamping wheel pair 35. The bracket 31 is fixedly installed on the horizontal frame 2 of the lifting device 2. The sliding sleeve 36 is fixed to the bottom of the bracket 31 (or directly fixed to the horizontal frame 21) and corresponds to the position of the vertical limiting hole 11 on the segment 1. The drive motor and the eccentric rotating wheel 32 are installed on the top of the bracket 31. The output shaft of the drive motor is connected to the eccentric rotating wheel 32. The eccentric rotating shaft 33 is connected to and driven to rotate. A set of clamping wheel pairs 35 is provided at the upper end of the clamping wheel pair 35. The clamping wheel pair 35 is specifically composed of two rollers. The two rollers clamp the wheel edge of the eccentric rotating wheel 32 to form a sliding friction contact. In addition, the lower end of the gripping column 34 is provided in the sliding sleeve 36 and the gripping column 34 can slide in the sliding sleeve 36. When the drive motor drives the eccentric rotating wheel 32 to rotate, the clamping wheel pair 35 moves up and down with the wheel edge of the eccentric rotating wheel 32. Correspondingly, the gripping column 34 also moves up and down under the guidance of the sliding sleeve 36. It should be noted that, for the gripping requirement in this embodiment, once the gripping column 34 is driven to extend into the vertical limiting hole 11 of the segment 1, it can be stopped. After the segment 1 is hoisted to the preset position, the gripping column 34 is driven to retract away from the vertical limiting hole 11, thereby releasing the gripping lock of the lifting device 2 and the telescopic gripping column 3 on the segment 1.

[0023] The beneficial effects of this embodiment are as follows: by setting telescopic gripping columns on the horizontal and vertical frames of the lifting device respectively, and driving the gripping columns to reciprocate telescopic motion through eccentric rotating wheels, the position limitation and automatic lifting of the vertical and horizontal limiting holes of the tunnel segment can be achieved.

Claims

1. A hoisting device for tunnel segments used in vertically excavated underground parking garages, characterized in that... The hoisting device includes a crane and a lifting device. The crane hoists the lifting device via steel cables. The lifting device includes a horizontal frame and a vertical frame. The side edges of the horizontal frame are vertically connected to the top edge of the vertical frame, forming a "┌" shape. At least one vertical limiting hole is provided on the top of the segment, and two horizontal limiting holes are provided on the outer arc surface of the segment. A set of vertical telescopic gripping columns are provided on the horizontal frame, corresponding to the opening positions of the vertical limiting holes. Two sets of horizontal telescopic gripping columns are provided on the vertical frame, each corresponding to the opening positions of the two horizontal limiting holes.

2. The segment hoisting device for vertically excavated underground parking garages according to claim 1, characterized in that... The telescopic gripping column includes a bracket, an eccentric rotating wheel, a drive motor, a gripping column, a sliding sleeve, and a pair of clamping wheels. The bracket is fixedly installed on the lifting device. The drive motor and the eccentric rotating wheel are installed on the top of the bracket. The output shaft of the drive motor is connected to the eccentric shaft of the eccentric rotating wheel and drives it to rotate. One end of the gripping column is slidably disposed within the sliding sleeve. The other end of the gripping column is provided with the pair of clamping wheels and is clamped and engaged with the outer rim of the eccentric rotating wheel. The rotation of the eccentric rotating wheel drives the pair of clamping wheels and the gripping column to perform telescopic movement under the limitation of the sliding sleeve.

3. The segment hoisting device for vertically excavated underground parking garages according to claim 2, characterized in that... The sliding sleeve of the telescopic gripping column, which is mounted on the horizontal frame, is positioned corresponding to the vertical limiting hole.

4. The segment hoisting device for vertically excavated underground parking garages according to claim 2, characterized in that... The sliding sleeve of the telescopic gripping column, which is mounted on the vertical frame, is positioned corresponding to the horizontal limiting hole.

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