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Self-adapting three-foot parallel type TBM support with three-foot parallel supporting legs

A technology of support legs and supporters, which is applied in mining equipment, earth-moving drilling, tunnels, etc., can solve the problems of failure to provide the reconstruction function of support legs, uneven contact force, unsuitable for hexapod thrusters, etc., and achieves improvement. Dynamic support force response characteristics, uniform distribution of contact loads, and effect of reducing the risk of support failure

Active Publication Date: 2017-10-24
EAST CHINA JIAOTONG UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The known TBM supporter fails to provide support leg reconstruction function, its support stiffness cannot be changed, and cannot improve the adaptability in the case of local defects on the support surface
[0007] To sum up, the known TBM support devices have the following problems: first, some are not suitable for hexapod propellers; second, some support force effects are poor; third, some cannot be fully self-aligning; The force is uneven, and there is no adjustment function; fifth, the support leg reconstruction function cannot be provided, and the adaptability to the working conditions of the support surface is poor
The known TBM supporting device does not yet have a technical solution or applicable device that is suitable for hexapod parallel propellers and has a good supporting force effect, self-aligning and self-reconfiguring to improve the adaptability of the supporting surface

Method used

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  • Self-adapting three-foot parallel type TBM support with three-foot parallel supporting legs
  • Self-adapting three-foot parallel type TBM support with three-foot parallel supporting legs
  • Self-adapting three-foot parallel type TBM support with three-foot parallel supporting legs

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Experimental program
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Effect test

Embodiment 1

[0036] In this embodiment, an adaptive three-legged parallel TBM supporter with three-legged parallel support legs is as follows: Figure 1 ~ Figure 3 shown.

[0037] The supporter in this embodiment includes a central support 10, an upper support leg 1L, a left lower support leg 2L and a right lower support leg 3L.

[0038] The central support 10 in this embodiment is a hexagonal ring structure, and the upper support leg 1L, the lower left support leg 2L and the lower right support leg 3L are respectively vertically installed on the rings of the hexagonal ring structure forming 120° to each other. On the side, it is on the same plane as the hexagonal ring structure; the upper support leg 1L is composed of a central support cylinder 1C, two side support cylinders 2C connected in parallel and then connected in series with the upper support shoe 1G to drive the upper support The leg 1L can drive the upper support shoe 1G to move radially; the left lower support leg 2L and the r...

Embodiment 2

[0050] This embodiment is a tunneling device with a hexapod parallel thruster, and the device adopts figure 2 The structure of the support shown.

[0051] In this embodiment, a tunneling device with a hexapod parallel propeller is a hybrid tunneling device composed of a cutter head system 1, a support ring 2, a propeller 3, and a supporter 4 connected in series; the supporter 4 is as follows: figure 2 The support structure. The propulsion cylinder 3C is connected with the supporting ring 2 by the propeller front joint 3F, and the propulsion cylinder 3C and the supporter 4 are connected by the propulsion cylinder rear joint 3B, and its position is located at the supporter front joint connection seat 4F of the supporter 4 .

Embodiment 3

[0053] This embodiment is a tunneling device in which double hexapod parallel propellers are connected in series, such as Figure 5 shown.

[0054] In this embodiment, a double-hexapod parallel thruster excavation device is connected in series, which is composed of a cutter head system 1, a support ring 2, a thruster 3, a supporter 4, an auxiliary propeller 5, and an auxiliary supporter 6 in series, and the mixed connection is formed. excavation device.

[0055] The propulsion cylinder 3C of the device in this embodiment is connected with the supporter 4 by the rear joint 3B of the propulsion cylinder, and its position is located at the supporting front joint connection seat 4F of the supporter 4; the auxiliary propulsion cylinder 5C and the supporter 4 are connected by the front joint 5F of the auxiliary propulsion cylinder connection, its position is located at the rear joint connection seat 4B of the supporter 4; the auxiliary propulsion cylinder 5C and the auxiliary suppo...

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Abstract

A self-adapting three-foot parallel type TBM support with three-foot parallel supporting legs comprises a center bearing bracket (10), an upper supporting leg (1L), a left lower supporting leg (2L) and a right lower supporting leg (3L). A center supporting cylinder (1C) and two side-direction supporting cylinders (2C) are connected in parallel and then connected with a supporting boot (1G) in series to form the upper supporting leg, and after being driven, the upper supporting leg can drive the supporting boot to conduct telescopic movement in the radial direction; and the left lower supporting leg and the right lower supporting leg are the same as the upper supporting leg in structure. According to the self-adapting three-foot parallel type TBM support with the three-foot parallel supporting legs, the TBM support has a self-aligning ability, self-adaption can be achieved for shape position errors of a supporting surface, and the pressure center of an auxiliary support is easy to regulate, so that the force bearing of the auxiliary support is more reasonable; and a contact load of the supporting boot and the supporting surface can be distributed more evenly by adjusting the magnitude of the supporting force of the center supporting cylinder and the side-direction supporting cylinders. A differential driving mode is adopted under the working condition that large supporting force is not needed, the rigidity of the support is low, under the effect of a vibration load, the supporting boot is not prone to loosening in the working process, and supporting failure risks are reduced.

Description

technical field [0001] The invention relates to a self-adaptive three-legged parallel TBM supporter with three-legged parallel supporting legs, which belongs to the technical field of excavation machinery. Background technique [0002] Some known TBM (hard rock falling road boring machine) supports adopt H-shaped double support leg structure, and the double support legs are arranged left and right, and the centering action in the vertical direction needs to be realized by an additional mechanism, and its self-weight load acts vertically on the hydraulic cylinder to move In the direction, a lateral bending force is formed, causing damage such as hydraulic cylinder strain, and affecting the working performance of the support cylinder. In its structure, one or two propulsion cylinders are arranged in each group, which can provide support for biped or quadruped propellers, but is not suitable for providing support for hexapod propellers. [0003] Some known TBM supporters adopt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06
CPCE21D9/0621
Inventor 徐尤南刘辛军徐济宇
Owner EAST CHINA JIAOTONG UNIVERSITY
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