CA3086807C

CA3086807C - Annular thrust system for shaft boring

Info

Publication number: CA3086807C
Application number: CA3086807A
Authority: CA
Inventors: Juhui YANG; Xidong ZHANG; Wei Xiao; Yangyi YAN; Dan LV; Wei Shi; Qian Zhou; Lin Feng
Original assignee: China Railway Engineering Equipment Group Co Ltd CREG
Current assignee: China Railway Engineering Equipment Group Co Ltd CREG
Priority date: 2017-12-25
Filing date: 2018-12-24
Publication date: 2023-08-22
Anticipated expiration: 2038-12-24
Also published as: WO2019128921A1; CN109958439A; CA3086807A1

Abstract

Disclosed is an annular bracing boot propulsion system for vertical shaft sinking, the system comprising an intermediate column (8), several boot plates (1) and several bracing cylinders (2), wherein the boot plates (1) and the bracing cylinders (2) are connected end-to-end to form an annular structure, each of the boot plates (1) is connected to the intermediate column (8) via a fixed torque beam (6) and a telescopic torque beam (5), and one end of the telescopic torque beam (5) is sheathed in the fixed torque beam (6), while the other end is movably connected to the boot plates (1); the inner wall of the boot plate (1) is connected with a propulsion cylinder (3), and one end of the propulsion cylinder (3) is connected to the boot plate (1), while the other end is connected to the fixed torque beam (6); and both the bracing cylinder (2) and the propulsion cylinder (3) are connected to a controller. The bracing cylinder of this system uses an annular arrangement and is connected to the intermediate column of a bracing boot device via the torque beams to provide the reaction torque and propulsion force of the bracing boot device. The structure of the system is simpler, the processing cost of the bracing boot is lower, and the inner space of a tunnel or vertical shaft is larger, thus making same more conducive to material transportation and equipment layout.

Description

ANNULAR THRUST SYSTEM FOR SHAFT BORING
Field of the Invention [0001] The invention relates generally to excavation equipment for vertical shafts, more specifically to an annular thrust system for shaft boring.
Description of the Prior Art

[0002] As the urban construction rapidly develops, more vertical shaft constructions are applied in reality, and the thrust system is an indispensable part in vertical shaft equipment. The thrust system, as a structure of providing stable thrust power and fixing point for the equipment, plays a critical role in vertical shaft engineering and tunnel equipment. In general, the thrust structure is a support structure with the outward center. In other words, the action line of the gripping cylinder faces the center of the tunnel or shaft. The shoe structure is easy to control and highly development, but complicated and high in cost. Moreover, it will take up the central space of the tunnel or shaft, which may impact the transportation of materials.
Summary of the Invention

[0003] In terms of the abovementioned shortcomings in the prior art, the invention provides an annular thrust system for shaft boring, which solves the problem that existing thrust systems are complicated in structure and inflexible, and slow down material transportation.

[0004] The technical scheme of the present invention is implemented in the following way. An annular thrust system for shaft boring comprises an intermediate column, several shoe pads and several gripping cylinders, wherein the shoe pads and the gripping cylinders are connected end-to-end to form an annular structure, each of the shoe pads is connected to the intermediate column via a fixed torque beam and a telescopic torque beam, and one end of the telescopic torque beam is sheathed in the fixed torque beam, while the other end is movably connected to the shoe pads;
the inner wall of the shoe pad is connected with a thrust cylinder, and one end of the thrust cylinder is connected to the shoe pad, while the other end is connected to the fixed torque beam; and both the gripping cylinder and the thrust cylinder are controlled through a controller.

Date recu/Date Received 2020-06-23

[0005] The fixed torsion beams are provided with mounting grooves in the middle, the tops of the mounting grooves are fixedly provided with connecting plates, radial cylinders are arranged inside the mounting grooves, one end of the radial cylinders is fixedly connected with the connecting plates, and the other end is fixedly connected with the telescopic torsion beams.

[0006] One end of a telescopic torsion beam as opposed to the shoe pads is provided with a connecting ball; the inner walls of the shoe pads are provided with slide grooves, and sliders are arranged in the slide grooves and provided with spherical grooves, and the spherical grooves are in fit with the connecting balls.

[0007] Each shoe pad is provided with two thrust cylinders, and the two thrust cylinders are arranged on two sides of the fixed torsion beams respectively.

[0008] The intermediate column is hollow and tubular, the outer wall of the intermediate column is provided with connecting lugs, through which the intermediate column is connected with the fixed torque beams.

[0009] The shoe pads are arc-shaped.

[0010] Of the present invention, the gripping cylinders are annuiarly arranged and are connected with the intermediate column of the shoe device through torque beams, which provides anti-torque and thrust power for the shoe device. Thus, the structure is simplified, shoe processing cost is lower, internal space of the tunnel or vertical shaft is enlarged, which facilitates material transportation and equipment arrangement.
With the sleeve-type torque beams, the telescopic torque beams are sleeved in the fixed torque beams and can extend and withdraw under the action of the radial cylinders, which simplifies the operation and save the space. The telescopic torque beams are connected with the sliders through ball joints, and move along the shoe pad flexibly and stably, which makes sure that construction can be smoothly and efficiently proceeded and work efficiency can be improved.
Brief Description of the Drawings

[0011] Various embodiments of the present invention will become fully appreciated as the same becomes better understood when considered in conjunction with the accompanying drawings. It should be noted that the drawings as follows just Date recu/Date Received 2020-06-23 illustrated some embodiments of the present invention, those skilled of the art can obtain other drawings based on the following drawings without making any creative work.

[0012] Fig. 1 is a front view of the present invention.

[0013] Fig. 2 is a top view of the present invention.

[0014] Fig. 3 is a local enlarged view of Position A in Fig. 1.
Description of the Preferred Embodiments

[0015] The technical schemes of the embodiments will be clearly and fully described in conjunction with the drawings. Apparently, the described embodiments are not exhaustive. Based on the embodiments of the present invention, various embodiments obtained by those skilled of the art without making any creative work will definitely fall into the protection scope of the present invention.

[0016] As Embodiment 1 shown in Fig. 1-3, an annular thrust system for shaft boring comprises an intermediate column 8, several shoe pads 1 and several gripping cylinders 2, wherein the shoe pads 1 are arc-shaped, the shoe pads 1 and the gripping cylinders 2 are connected end-to-end to form an annular structure, the number of the shoe pads 1 and the gripping cylinders 2 is determined according to the situation of the vertical shaft; by opening and closing the annular structure through the gripping cylinders, the diameter of the opening annular structure can be adjusted.
Each of the shoe pads 1 is connected to the intermediate column 8 via a fixed torque beam 6 and a telescopic torque beam 5, and the fixed torque beam 6 and the telescopic torque beam 5 play a function of supporting the shoe pads 1; one end of the telescopic torque beam 5 is sheathed in the fixed torque beam 6, while the other end is movably connected to the shoe pads 1 and can move vertically along the shoe pads; the inner wall of the shoe pad 1 is connected with a thrust cylinder 3, and one end of the thrust cylinder 3 is connected to the shoe pad 1, while the other end is connected to the fixed torque beam 6; the thrust cylinders stretch and withdraw to move the device up and down and provide the thrust power; the gripping cylinder 2 and the thrust cylinder 3 are connected to a controller, which realizes automatic control, simple operation and high accuracy.

Date recu/Date Received 2020-06-23

[0017] Each fixed torque beam 6 is provided with a mounting groove 6-1 inside, the mounting grooves are parallel to the fixed torque beams, connecting plates 6-2 are fixedly arranged on the top of the mounting grooves 6-1, radial cylinders 7 are horizontally arranged in the mounting grooves 6-1, one end of the radial cylinders 7 is fixedly connected with the connecting plates 6-2, and the other end is fixedly connected with the telescopic torque beams 5; through the radial cylinders, the telescopic torque beams 5 can stretch and withdraw.

[0018] Embodiment 2, disclosed is an annular thrust system for shaft boring, wherein one end of a telescopic torsion beam 5 as opposed to the shoe pads 1 is provided with a connecting ball 5-1; the inner walls of the shoe pads 1 are provided with slide grooves 1-1, and sliders 1-2 are arranged in the slide grooves 1-1 and provided with spherical grooves 1-3, and the spherical grooves 1-3 are in fit with the connecting balls 5-1; through the spherical grooves 1-3 and the connecting balls 5-1, the telescopic torque beams and the shoe pads are in ball joint, which are flexible in movement.

[0019] Other structure are the same as those of the Embodiment 1.

[0020] Embodiment 3, disclosed is an annular thrust system for shaft boring comprising four shoe pads 1 and four gripping cylinders 2, each shoe pad 1 is provided with two thrust cylinders 3, and the two thrust cylinders 3 are arranged on two sides of the fixed torque beams 6 respectively so that thrust is more stable and even.

[0021] Further, the intermediate column 8 is hollow and tubular, the outer wall of the intermediate column 8 is provided with connecting lugs 8-1, through which the intermediate column 8 is connected with the fixed torque beams 6.

[0022] Other structures are the same as those of Embodiment 2.

[0023] The abovementioned are some preferred embodiments of the present invention and not intended to limit the present invention. Any modification, equivalents, and changes based on the spirit and principle of the present invention should fall into the protection scope of the present invention.

Date recu/Date Received 2020-06-23

Claims

WHAT IS CLAIMED IS:

1. An annular thrust system for shaft boring, comprising an intermediate column (8), several shoe pads (1) and several gripping cylinders (2), wherein the shoe pads (1) and the gripping cylinders (2) are connected end-to-end to form an annular structure, each of the shoe pads (1) is connected to the intermediate column (8) via a fixed torque beam (6) and a telescopic torque beam (5), and one end of the telescopic torque beam (5) is sheathed in the fixed torque beam (6), while the other end is movably connected to the shoe pads (1); the inner wall of the shoe pad (1) is connected with a thrust cylinder (3), and one end of the thrust cylinder (3) is connected to the shoe pad (1), while the other end is connected to the fixed torque beam (6); and both the gripping cylinder (2) and the thrust cylinder (3) are controlled by a controller.

2. The annular thrust system for shaft boring of Claim 1, wherein the fixed torsion beams (6) are provided with mounting grooves (6-1) in the middle, tops of the mounting grooves (6-1) are fixedly provided with connecting plates (6-2), radial cylinders (7) are arranged inside the mounting grooves (6-1), one end of the radial cylinders (7) is fixedly connected with the connecting plates (6-2), and the other end is fixedly connected with the telescopic torsion beams (5).

3. The annular thrust system for shaft boring of Claim 1 or 2, wherein one end of a telescopic torsion beam (5) as opposed to the shoe pads (1) is provided with a connecting ball (5-1); the inner walls of the shoe pads (1) are provided with slide grooves (1-1), and sliders (1-2) are arranged in the slide grooves (1-1) and provided with spherical grooves (1-3), and the spherical grooves (1-3) are in fit with the connecting balls (5-1).

4. The annular thrust system for shaft boring of Claim 3, wherein each shoe pad (1) is provided with two thrust cylinders (3), and the two thrust cylinders (3) are arranged on two sides of the fixed torsion beams (6) respectively.
Date Regue/Date Received 2022-08-30

5. The annular thrust system for shaft boring of Claim 1, wherein the intermediate column (8) is hollow and tubular, an outer wall of the intermediate column (8) is provided with connecting lugs (8-1), through which the intermediate column (8) is connected with the fixed torque beams (6).

6. The annular thrust system for shaft boring of Claim 1, wherein the shoe pads (1) are arc-shaped.
Date Regue/Date Received 2022-08-30