Novel full-section hard rock heading machine propelling system

Abstract

The invention belongs to the technical field of TBM tunneling machine propelling systems, and discloses a novel full-section hard rock tunneling machine propelling system. The novel full-section hard rock heading machine propelling system comprises a front main beam, a tight supporting mechanism, a sliding beam, a supporting shoe, an oil cylinder connecting lug seat, a first pin shaft, a propelling oil cylinder, a second pin shaft, a hinge seat, a third pin shaft, a plate spring and a lifting pin, the front main beam is fixedly connected with the sliding beam, and the sliding beam is installed in a sliding cavity of the tight supporting mechanism in a sliding mode. The supporting shoes are symmetrically installed at the two ends of the tight-supporting mechanism respectively, the supporting shoes are attached to the wall of an excavated hole under the action of the tight-supporting system, and the sliding beam is driven by the thrust oil cylinder to slide front and back in a tight-supporting system cavity. According to the novel full-section hard rock heading machine propelling system, the propelling system is simple in structure, the manufacturing cost is reduced, and the economic applicability of a TBM heading machine is improved.

Description

Technical Field

[0001] The invention relates to the technical field of TBM tunneling machine propulsion system, in particular to a novel full-section hard rock tunneling machine propulsion system. Background Art

[0002] TBM is a highly efficient hard rock excavation equipment, which is now widely used in transportation, water diversion, mining and other fields. The propulsion system is an important power source for the forward excavation of the TBM, and is a key component to ensure the stability of the forward excavation of the TBM. At present, the propulsion system of TBMs mostly uses double propulsion cylinders on both sides to control the tightening mechanism of the propulsion system. The system has a complex structure, is difficult to install, and has high manufacturing costs. Now we provide a new TBM propulsion system with a simple structure and high economic applicability. Summary of the invention

[0003] The purpose of the invention is to provide a new full-section hard rock tunnel boring machine propulsion system to solve the above-mentioned defects and shortcomings in the prior art, and to provide a new full-section hard rock tunnel boring machine propulsion system that can ensure the stability of the forward excavation of the TBM tunnel boring machine while improving its economic applicability.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a new full-section hard rock tunnel boring machine propulsion system, including a front main beam, a tightening mechanism, a sliding beam, a tightening shoe, a cylinder connecting ear seat, a first pin shaft, a propulsion cylinder, a second pin shaft, an articulated seat, a third pin shaft, a leaf spring, and a top pin; the system is installed on the rear side of the TBM tunnel boring machine cutter head and the main drive, the front main beam is fixedly connected to the sliding beam, the sliding beam is slidably installed in the sliding cavity of the tightening mechanism, and the tightening shoes are symmetrically installed at both ends of the tightening mechanism; the front of both sides of the front main beam are opposite The oil cylinder connecting ear seat is installed, and one end of the propulsion cylinder is rotatably connected to the oil cylinder connecting ear seat through a vertically placed first pin shaft, and the other end of the propulsion cylinder is rotatably connected to the front end of the articulated seat through a vertically placed second pin shaft. The connecting seat set at the front end of the support shoe is rotatably connected to the rear end of the articulated seat through a horizontally placed third pin shaft; a leaf spring is fixedly installed in the slot set on the articulated seat, and a top pin fixing seat is set above the connecting seat at the front end of the support shoe, one end of the top pin is fixedly installed on the top pin fixing seat of the support shoe, and the other end is fitted with the leaf spring.

[0005] By adopting the above technical solution, the beneficial effects of the present invention are:

[0006] 1. This new full-section hard rock tunnel boring machine propulsion system is installed on the rear side of the main drive of the TBM tunnel boring machine. Under the action of the tensioning system, the support shoe fits against the excavation wall, and the propulsion cylinder drives the sliding beam to slide back and forth in the tensioning system cavity, thereby realizing the forward and backward movement of the TBM tunnel boring machine; the leaf spring installed in the articulated seat slot, under the action of the top pin, the reaction force generated by the spring steel plate can resist the rotation of the support shoe and its propulsion cylinder around the third pin due to gravity, ensuring the stability of the propulsion cylinder and the support shoe during the excavation process. A new full-section hard rock tunnel boring machine propulsion system has a simple structure, reduces manufacturing costs, and improves the economic applicability of the TBM tunnel boring machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the structure of the present invention;

[0008] Figure 2 For the present invention Figure 1 Center A view.

[0009] In the figure: 1 front main beam, 2 tightening mechanism, 3 sliding beam, 4 support shoe, 5 cylinder connecting ear seat, 6 first pin shaft, 7 thrust cylinder, 8 second pin shaft, 9 articulated seat, 10 third pin shaft, 11 leaf spring, 12 top pin. DETAILED DESCRIPTION

[0010] See also Figure 1-2 The present invention provides a technical solution: a new full-section hard rock tunnel boring machine propulsion system, including the tunnel boring machine including a front main beam 1, a tightening mechanism 2, a sliding beam 3, a support shoe 4, a cylinder connecting ear seat 5, a first pin shaft 6, a propulsion cylinder 7, a second pin shaft 8, an articulated seat 9, a third pin shaft 10, a leaf spring 11, and a top pin 12.

[0011] The present invention provides a novel full-section hard rock tunnel boring machine propulsion system, which specifically includes a front main beam 1, a tightening mechanism 2, a sliding beam 3, a tightening shoe 4, a cylinder connecting ear seat 5, a first pin shaft 6, a propulsion cylinder 7, a second pin shaft 8, an articulated seat 9, a third pin shaft 10, a leaf spring 11, and a top pin 12; a novel full-section hard rock tunnel boring machine propulsion system is installed on the rear side of the TBM tunnel boring machine cutter head and the main drive, a front main beam 1 of the novel full-section hard rock tunnel boring machine propulsion system is fixedly connected with the sliding beam 3, the sliding beam 3 is slidably installed in the sliding cavity of the tightening mechanism 2, and the tightening mechanism 2 has tightening shoes 4 symmetrically installed at both ends; the front main beam 1 The cylinder connecting ear seats 5 are symmetrically installed on the front part of both sides of the beam 1. One end of the propulsion cylinder 7 is rotatably connected to the cylinder connecting ear seat 5 through a vertically placed first pin shaft 6, and the other end of the propulsion cylinder 7 is rotatably connected to the front end of the articulated seat 9 through a vertically placed second pin shaft 8. The connecting seat set at the front end of the support shoe 4 is rotatably connected to the rear end of the articulated seat 9 through a horizontally placed third pin shaft 10; a leaf spring 11 is fixedly installed in the slot set on the articulated seat 9, and a top pin fixing seat is set above the connecting seat at the front end of the support shoe 4, and one end of the top pin 12 is fixedly installed on the top pin fixing seat of the support shoe 4, and the other end is in contact with the leaf spring 11.

[0012] The working principle of the new full-section hard rock tunnel boring machine propulsion system described is that the new full-section hard rock tunnel boring machine propulsion system provided by the present invention is installed on the rear side of the main drive of the TBM tunnel boring machine. Under the action of the tightening system, the support shoe fits the excavation wall, and the sliding beam is driven by the thrust cylinder to slide back and forth in the tightening system cavity, thereby realizing the forward and backward movement of the TBM tunnel boring machine; the leaf spring installed in the slot of the articulated seat, under the action of the top pin, the reaction force generated by the spring steel plate can resist the torque generated by the support shoe and its thrust cylinder around the third pin shaft, ensuring the stability of the thrust cylinder and the support shoe during the tunneling process. The new full-section hard rock tunnel boring machine propulsion system has a simple structure, reduces manufacturing costs, and improves the economic applicability of the TBM tunnel boring machine.

[0013] Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A new type of full-face hard rock tunnel boring machine propulsion system, Features: It comprises a front main beam (1), a tightening mechanism (2), a sliding beam (3), a tightening shoe (4), a cylinder connecting ear seat (5), a first pin shaft (6), a thrust cylinder (7), a second pin shaft (8), an articulated seat (9), a third pin shaft (10), a leaf spring (11) and a top pin (12); The front main beam (1) is fixedly connected to the sliding beam (3), and the sliding beam (3) is slidably installed in the sliding cavity of the tightening mechanism (2). The tightening shoes (4) are symmetrically installed at both ends of the tightening mechanism (2). Under the action of the tightening system, the tightening shoes (4) fit the excavation hole wall. The front parts of both sides of the front main beam (1) are symmetrically installed with cylinder connecting ear seats (5). One end of the propulsion cylinder (7) is rotatably connected with the cylinder connecting ear seat (5) through a vertically placed first pin shaft (6). The sliding beam (3) is driven by the propulsion cylinder (7) to slide back and forth in the tightening system cavity. The other end of the propulsion cylinder (7) is rotatably connected with the front end of the articulated seat (9) through a vertically placed second pin shaft (8). The connecting seat arranged at the front end of the tightening shoe (4) is rotatably connected with the rear end of the articulated seat (9) through a horizontally placed third pin shaft (10); A leaf spring (11) is fixedly installed in a slot arranged on the hinge seat (9), a top pin (12) fixing seat is arranged above the front end connecting seat of the support shoe (4), one end of the top pin (12) is fixedly installed on the top pin (12) fixing seat of the support shoe (4), and the other end is in contact with the leaf spring (11).

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