Shield segment bionic vacuum chuck carrying and lifting device

Abstract

The invention provides a bionic vacuum chuck carrying and lifting device for shield segments. The carrying and lifting device comprises a rotary drum, a bottom support and a duct piece sliding rail which are sequentially arranged from top to bottom. According to the carrying and lifting device, mounting and feeding of the duct pieces are conducted through vacuum adsorption, the mounting efficiency of the duct pieces is effectively improved, clamping holes do not need to be reserved in the outer surfaces of the duct pieces, and the overall structural strength of the duct pieces is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shield construction, in particular to a shield segment bionic vacuum chuck handling hoisting device. BACKGROUND

[0002] When the shield segment is installed, the segment hoist is used to unload the segment to the segment feeder, and then to the working range of the segment installation machine. During hoisting, the appropriate lifting point should be selected, and the lifting tool should be firmly connected with the segment. Before hoisting, the segment should be inspected for appearance and size to ensure that it meets the design requirements. The segment installation adopts the principle of from bottom to top, first installs the bottom standard block (or adjacent block), and then symmetrically installs the standard block and adjacent block. During installation, it should be carefully placed, the operation should be stable, and the impact force on the hoisting hole should be avoided to cause damage. At the same time, the hoisting head should be tightened to avoid the hoisting head bearing the weight of the segment alone during segment installation. The four pressure plates should be evenly in contact with the segment.

[0003] The existing shield segment needs to be hoisted by multiple people, and because the shape of the segment is arc-shaped, the hoisting equipment is clamped at the edge of the segment. After the segment is hoisted into place, the edge needs to be spliced. In order to facilitate splicing, a clamping hole is usually provided on the inner surface of the arc-shaped segment. The existence of the clamping hole will affect the strength of the segment.

[0004] Therefore, it is of great significance to develop a shield segment handling hoisting device. SUMMARY

[0005] The purpose of the present application is to provide a shield segment bionic vacuum chuck handling hoisting device to solve the problems in the prior art.

[0006] The technical solution adopted to achieve the purpose of the present application is as follows: a shield segment bionic vacuum chuck handling hoisting device, comprising a rotating drum, a bottom support and a segment sliding rail arranged in sequence from top to bottom.

[0007] The two sides of the hoisting device along the length direction are marked as side A and side B. The segment sliding rail is located on the side B of the bottom support. The segment sliding rail is arranged with segments. The upper surface of the bottom support is arranged with a bearing support, a support frame and a motor. The output shaft of the motor is connected with a driving gear through a shaft coupling. The side wall of the support frame is rotatably connected with a positioning gear.

[0008] The outer periphery of the barrel of the rotating drum is fixedly provided with a driven gear. One end of the rotating drum is rotatably connected to the upper surface of the bottom support through a slewing bearing, and the other end is cantilevered to extend out of the B side of the bottom support. The driving gear is engaged with the driven gear. The positioning gear is engaged with the driven gear. A plurality of hydraulic telescopic rods are fixed to the outer wall of the cantilevered end of the rotating drum. The telescopic end of the hydraulic telescopic rod is connected with a lifting plate. The side surface of the lifting plate away from the hydraulic telescopic rod is provided with a vacuum suction cup.

[0009] Further, the bottom support is mounted on an external walking trolley.

[0010] Further, two positioning turntables rotatably connected to the upper surface of the bottom support are further included. The two positioning turntables are arranged on the AB sides of the driven gear respectively. The disc of the positioning turntable is tightly arranged on the end surface of the driven gear.

[0011] Further, the vacuum suction cup is a cover structure including a cover bottom and a cover wall. The cover wall and the cover bottom are connected through a smooth curved surface. The end of the cover wall is a lip. The cover bottom and the cover wall enclose an adsorption cavity. A negative pressure outlet is arranged on the cover bottom. The negative pressure outlet is connected with a double-way air pump through a conduit. The vacuum suction cup is connected with a pipe piece through adsorption. The lip of the vacuum suction cup is in close contact with the inner wall of the pipe piece.

[0012] Further, the pipe piece slide rail includes two parallel slide rails.

[0013] The technical effect of the present application is self-evident: the installation and feeding of the pipe piece are carried out through vacuum adsorption, which effectively improves the installation efficiency of the pipe piece, and does not need to reserve clamping holes on the outer surface of the pipe piece, thereby effectively improving the overall structural strength of the pipe piece. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of the structure of the bionic vacuum suction cup carrying and hoisting device for shield pipe pieces.

[0015] Figure 2 It is a front view of the bionic vacuum suction cup carrying and hoisting device for shield pipe pieces.

[0016] Figure 3 It is a right view of the bionic vacuum suction cup carrying and hoisting device for shield pipe pieces.

[0017] Figure 4 It is a schematic view of the vacuum suction cup.

[0018] In the figure: slewing bearing 1, support frame 2, positioning gear 3, driven gear 4, rotating drum 5, hydraulic telescopic rod 6, pipe piece slide rail 7, pipe piece 8, lifting plate 9, vacuum suction cup 10, bottom support 11, motor 12, driving gear 13, positioning turntable 14. DETAILED DESCRIPTION

[0019] The application will be further described in conjunction with the embodiments. However, it should not be understood as a limitation on the above-mentioned subject matter of the application only to the following embodiments. According to ordinary technical knowledge and common practice in the art, various substitutions and modifications can be made without departing from the technical idea of the application, and all of them should be included in the protection scope of the application.

[0020] Embodiment 1

[0021] Referring to Figures 1-3 , the embodiment provides a bionic vacuum chuck carrying and hoisting device for a shield segment, which comprises, from top to bottom, a rotating drum 5, a bottom support 11 and a segment slide rail 7.

[0022] The two sides of the hoisting device along the length direction are marked as side A and side B. The segment slide rail 7 is located at the B side of the bottom support 11. The segment slide rail 7 is arranged with segments 8. The upper surface of the bottom support 11 is arranged with a bearing support, a support frame 2 and a motor 12. The bearing support supports a slewing bearing 1. The output shaft of the motor 12 is connected with a driving gear 13 through a shaft coupling. The side wall of the support frame 2 is rotationally connected with a positioning gear 3.

[0023] A driven gear 4 is fixedly sleeved on the outer periphery of the barrel body of the rotating drum 5. One end of the rotating drum 5 is rotationally connected to the upper surface of the bottom support 11 through the slewing bearing 1, and the other end is cantilevered to extend out of the B side of the bottom support 11. The driving gear 13 is engaged with the driven gear 4. The positioning gear 3 is engaged with the driven gear 4. A plurality of hydraulic telescopic rods 6 are fixed on the outer wall of the cantilevered end of the rotating drum 5. The telescopic ends of the hydraulic telescopic rods 6 are connected with a lifting plate 9. A vacuum chuck 10 is mounted on the side surface of the lifting plate 9 away from the hydraulic telescopic rods 6. Referring to Figure 4 , the vacuum chuck 10 is a cover structure including a cover bottom and a cover wall. The cover wall and the cover bottom are connected through a smooth curved surface. The end of the cover wall is a lip. The cover bottom and the cover wall enclose an adsorption cavity. A negative pressure outlet is arranged on the cover bottom. The negative pressure outlet is connected with a double-way air pump through a conduit.

[0024] In work, the segment 8 is placed on the segment slide rail 7, and then the segment 8 is slid to the directly below the vacuum chuck 10 through the segment slide rail 7. The hydraulic telescopic rods 6 are elongated to drive the vacuum chuck 10 to approach the segment 8. The vacuum chuck 10 is adsorptively connected with the segment 8. The lip of the vacuum chuck 10 is in contact with the inner wall of the segment 8. Then the motor 12 drives the segment 8 to rotate to transport it to the installation station.

[0025] The hoisting efficiency of the embodiment is high. The installation and feeding of the segment are carried out through vacuum adsorption, which effectively improves the installation efficiency of the segment, and does not need to reserve clamping holes on the outer surface of the segment, effectively improving the overall structural strength of the segment.

[0026] Embodiment 2:

[0027] This embodiment is mainly the same as embodiment 1, wherein the bottom support 11 is installed on an external travelling trolley.

[0028] Embodiment 3:

[0029] This embodiment is mainly the same as embodiment 1 or 2, wherein two positioning turntables 14 are further connected to the upper surface of the bottom support 11. The two positioning turntables 14 are arranged on the two sides of the driven gear 4 respectively. The disc of the positioning turntable 14 is close to the end surface of the driven gear 4.

[0030] Embodiment 4:

[0031] This embodiment is mainly the same as any one of embodiments 1-3, wherein the pipe segment sliding rail 7 comprises two parallel sliding rails.

Claims

1. A biomimetic vacuum suction cup lifting device for transporting and hoisting tunnel segments, characterized in that: It includes a rotating drum (5), a bottom support (11), and a segment slide rail (7) arranged from top to bottom; The two sides of the lifting device along its length are marked as side A and side B; the segment slide rail (7) is located on side B of the bottom support (11); segments (8) are arranged on the segment slide rail (7); a bearing bracket, a support frame (2) and a motor (12) are arranged on the upper surface of the bottom support (11); the bearing bracket supports and fixes the slewing bearing (1); the output shaft of the motor (12) is connected to a drive gear (13) through a coupling; a positioning gear (3) is rotatably connected to the side wall of the support frame (2); A driven gear (4) is fixedly sleeved around the outer periphery of the rotating drum (5); one end of the rotating drum (5) is rotatably connected to the upper surface of the bottom support (11) through a slewing bearing (1), and the other end extends out of the B side of the bottom support (11); the driving gear (13) meshes with the driven gear (4); the positioning gear (3) meshes with the driven gear (4); several hydraulic telescopic rods (6) are fixed on the outer wall of the cantilever end of the rotating drum (5); the telescopic end of the hydraulic telescopic rod (6) is connected to a lifting plate (9); a vacuum suction cup (10) is installed on the side surface of the lifting plate (9) away from the hydraulic telescopic rod (6).

2. The shield tunnel segment biomimetic vacuum suction cup handling and lifting device according to claim 1, characterized in that: The bottom bracket (11) is mounted on the external walking trolley.

3. The shield tunnel segment biomimetic vacuum suction cup handling and lifting device according to claim 1, characterized in that: It also includes two positioning turntables (14) rotatably connected to the upper surface of the bottom bracket (11); the two positioning turntables (14) are respectively arranged on the AB sides of the driven gear (4); the edge of the positioning turntable (14) is close to the end face of the driven gear (4).

4. The shield tunnel segment biomimetic vacuum suction cup handling and lifting device according to claim 1, characterized in that: The vacuum suction cup (10) is a shell structure consisting of a bottom cover and a wall cover; the wall cover and the bottom cover are connected by a smooth curved surface; the end of the wall cover is a lip; the bottom cover and the wall cover enclose an adsorption cavity; a negative pressure outlet is provided on the bottom cover; the negative pressure outlet is connected to a bidirectional air pump through a conduit.

5. The shield tunnel segment biomimetic vacuum suction cup handling and lifting device according to claim 1, characterized in that: The segment slide rail (7) includes two parallel slide rails.

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