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Manual grasping device for large-diameter tunnel segments

A tunnel segment and gripping device technology, which is applied in tunnels, tunnel linings, shaft equipment, etc., can solve the problems of large-diameter segment reversing, large working space requirements, and difficult maintenance, so as to reduce operation difficulty and labor Strength, the effect of improving the efficiency of bad luck

Inactive Publication Date: 2013-02-13
CHINA RAILWAY CONSTR HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the vacuum suction cup grabbing mechanism has complex system, high equipment cost and failure rate, and difficult maintenance, while the large-scale mechanical arm grabbing mechanism requires a large working space, long grabbing cycle, and complex structure, while the existing small-diameter tunnel tube The load-carrying capacity of the segment grabbing mechanism cannot satisfy the large-diameter segments.

Method used

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  • Manual grasping device for large-diameter tunnel segments
  • Manual grasping device for large-diameter tunnel segments
  • Manual grasping device for large-diameter tunnel segments

Examples

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Embodiment Construction

[0013] Such as figure 1 with figure 2 As shown, the large-diameter tunnel segment manual gripping device includes a bracket 1, a cover 2, a rotating shaft 3, a thrust self-aligning bearing 4, a spherical seat 5, a spherical support 6, a backing plate 7, a pin shaft 8, and a grabbing head 9 and the gripping bolt 10; the bracket 1 is an upper arched weldment, with four hook points 101 arranged symmetrically, and the grabbing head 9 is located at the center of the bracket 1; the grabbing head 9 is connected to the rotating shaft 3 through the pin shaft 8, The rotating shaft 3 is positioned by the self-aligning bearing 4, the spherical seat 5, and the spherical support 6. The spherical surface of the shaft end of the rotating shaft 3 withstands the cover 2 fixed by bolts. Due to the existence of the spherical seat 5 and the thrust self-aligning bearing 4, the rotating shaft 3 can rotate around The axis is free to rotate and the spherical surface around the spherical support 6 is...

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Abstract

The invention discloses a manual grasping device of large-diameter tunnel segments, comprising a bracket and a rotating shaft; the bracket is provided with a spherical support; and the upper end of the rotating shaft is arranged on a spherical seat through a thrust aligning bearing, and the rotating shaft is matched with the spherical support on the bracket through the spherical seat; and the lower end of the rotating shaft is provided with a grasping head matched with a grasping bolt on a segment. During reversed transportation of segments, with the adoption of the manual grasping device for large-diameter tunnel segments, the segments can be conveyed fast and safely, the equipment cost and the operation space are reduced, the operation difficulty is lowered, the reversed transporting efficiency of the segments is increased, the cost and the labor intensity is reduced, and the easy manual operation of segment grasping and rotating are realized. The manual grasping device is suitable for segment lifting operations during the large-diameter tunnel and other tunnel protection construction.

Description

technical field [0001] The invention belongs to a grasping device, in particular to a manual segment grasping device used in the process of reversing large-diameter tunnel segments. Background technique [0002] In recent years, tunnel boring machine construction has been widely used in underground tunnel construction due to its small impact on the ground and underground environment, fast excavation speed, and small surface settlement. In the construction of underground tunnels, the protection of tunnels is achieved by segment assembly. Segment reversing is a special equipment used to transfer the segment from the pointing position to another designated position. During this period, it needs to complete a series of actions such as lifting and rotating the segment. It is mainly composed of walking mechanism, lifting mechanism, braking system and tube. Segment grabbing mechanism and other components, segment unlucky is an important factor affecting the construction progress a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/40
Inventor 刘飞香程永亮郑大桥梅勇兵肖万元
Owner CHINA RAILWAY CONSTR HEAVY IND
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