Cable drag device for tunnel boring machine

Abstract

The utility model discloses a cable dragging device for a tunnel boring machine. The utility model relates to the technical field of auxiliary devices for tunnel boring machines, and includes a base frame, a mounting frame is fixedly connected to the upper surface of the base frame, an I-wheel is rotatably connected to the inner wall of the mounting frame, an energizing column is inlaid at one end of the I-wheel, a first power connection head is fixedly connected to one end of the energizing column, a coiled cable is fixedly connected to the inner wall of the first power connection head, the other end of the energizing column is rotatably connected to the second power connection head, and a connecting cable is fixedly connected to the inner wall of the second power connection head. In the utility model, the base frame moves with the tunnel boring machine, and the I-wheel is rotated while the base frame moves, and the coiled cable wound on the I-wheel is released through a guide mechanism, and the I-wheel causes the energizing column and the second power connection head to rotate, and the energizing column and the second power connection head rotate to cooperate with each other to connect electricity, so that the connecting cable is connected to the coiled cable through the second power connection head, the energizing column and the first power connection head.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices for tunnel boring machines, in particular to a cable dragging device for tunnel boring machines. Background Art

[0002] With the rapid growth of domestic urban rail transit, railways, highways, water conservancy, municipal engineering and other construction projects, my country's tunneling machinery has also ushered in rapid development. The working mode of the tunneling machine: It is mainly composed of a traveling mechanism, a working mechanism, a loading mechanism and a transfer mechanism. As the traveling mechanism moves forward, the cutting head in the working mechanism continuously breaks the rock and transports the broken rock away.

[0003] The tunnel boring machine cable is an electric line connecting the tunnel boring machine and the power supply system. Its function is to transmit electric energy from the power supply system to the tunnel boring machine main unit and control its operation. As the tunnel boring machine moves forward, the connected cable will be continuously dragged. Since most construction working environments are complex and there are many sharp hard objects (such as gravel) on the ground, the cable will rub against the ground during the dragging process, which can easily cause cable damage and reduce the service life of the cable. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art that the cable will generate friction with the ground during the dragging process, which easily leads to cable damage and reduces the service life of the cable, and proposes a cable dragging device for a tunnel boring machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cable traction device for a tunnel boring machine comprises a base frame, a mounting frame is fixedly connected to the upper surface of the base frame, an I-shaped wheel is rotatably connected to the inner wall of the mounting frame, a power-carrying column is inlaid at one end of the I-shaped wheel, a first power-carrying head is fixedly connected to one end of the power-carrying head, a coiled cable is fixedly connected to the inner wall of the first power-carrying head, the other end of the power-carrying column is rotatably connected to the second power-carrying head, a connecting cable is fixedly connected to the inner wall of the second power-carrying head, a through hole is opened on the side of the mounting frame, one end of the connecting cable passes through the through hole, and a guide mechanism is arranged on the upper surface of the base frame.

[0006] As a further description of the above technical solution:

[0007] The guide mechanism comprises a fixed frame and a movable seat which are fixedly mounted on the upper surface of the base frame, and a driving motor is fixedly connected to the side surface of the fixed frame.

[0008] As a further description of the above technical solution:

[0009] The inner wall of the fixing frame is rotatably connected with a lead screw, and the inner wall of the fixing frame is fixedly connected with a guide rod.

[0010] As a further description of the above technical solution:

[0011] A threaded sleeve is arranged at the bottom of the movable seat, and the inner wall of the threaded sleeve is threadedly connected with the lead screw.

[0012] As a further description of the above technical solution:

[0013] A sliding sleeve is arranged at the bottom of the movable seat, and the inner wall of the sliding sleeve is slidably connected with the guide rod.

[0014] As a further description of the above technical solution:

[0015] The inner bottom wall of the movable seat is fixedly connected with a guide frame, and the inner wall of the guide frame is rotatably connected with two guide rollers.

[0016] As a further description of the above technical solution:

[0017] The surface of the guide roller is provided with a limiting groove, and the inner wall of the limiting groove is provided with anti-slip grooves.

[0018] As a further description of the above technical solution:

[0019] The lower surface of the base frame is fixedly connected with a damping shock absorber, and the lower surface of the damping shock absorber is rotatably connected with a moving frame.

[0020] As a further description of the above technical solution:

[0021] The inner wall of the movable frame is rotatably connected with a movable wheel, and the surface of the damping shock absorber is fixedly connected with a supporting rib.

[0022] As a further description of the above technical solution:

[0023] A weight-reducing groove is provided on the upper surface of the base frame, and the corners of the upper surface of the base frame are rounded.

[0024] The utility model has the following beneficial effects:

[0025] 1. Compared with the prior art, the cable dragging device for the tunnel boring machine has a base frame that moves with the tunnel boring machine, and the I-shaped wheel is rotated while the base frame moves, so that the coiled cable wound on the I-shaped wheel is released through the guide mechanism. The I-shaped wheel causes the power-on column and the second power-on head to rotate, and the power-on column and the second power-on head rotate to cooperate with each other to connect electricity, so that the connecting cable is connected to the coiled cable through the second power-on head, the power-on column and the first power-on head, which does not affect the use of the cable, and the cable is not easy to rub against the ground, thereby extending the service life of the cable.

[0026] 2. Compared with the prior art, the cable traction device of the tunnel boring machine drives the lead screw to rotate by a driving motor. Through the threaded cooperation between the lead screw and the threaded sleeve, the movable seat moves along the sliding sleeve through the sliding sleeve, thereby driving the guide frame to move back and forth, which is convenient for the release of the coiled cable. When retracting the coiled cable, the guide frame also moves back and forth, which is convenient for the coiled cable to be wound on the I-shaped wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the cable dragging device for a tunnel boring machine proposed in the utility model;

[0028] Figure 2 It is a partial cross-sectional view of the I-shaped wheel center shaft of the cable dragging device of the tunnel boring machine proposed by the utility model;

[0029] Figure 3 This is a partial enlarged view of the fixing frame of the cable dragging device of the tunnel boring machine proposed in the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the moving seat of the cable dragging device of the tunnel boring machine proposed in the utility model;

[0031] Figure 5 This is a schematic diagram of the base frame structure of the cable dragging device for a tunnel boring machine proposed in the utility model;

[0032] Figure 6 The present invention is a schematic diagram of the structure of the damping shock absorber of the cable dragging device of the tunnel boring machine proposed by the present invention.

[0033] Legend:

[0034] 1. Base frame; 2. Mounting frame; 3. I-shaped wheel; 4. Power column; 5. First power terminal; 6. Coiled cable; 7. Second power terminal; 8. Connecting cable; 9. Through hole; 10. Fixed frame; 11. Driving motor; 12. Lead screw; 13. Guide rod; 14. Moving seat; 15. Sliding sleeve; 16. Threaded sleeve; 17. Guide frame; 18. Guide roller; 19. Damping shock absorber; 20. Moving frame; 21. Moving wheel; 22. Support rib; 23. Weight reduction groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] Example:

[0038] Reference Figure 1-Figure 6 The cable dragging device of a tunnel boring machine provided by the utility model comprises a base frame 1, a mounting frame 2 is fixedly connected to the upper surface of the base frame 1, an I-shaped wheel 3 is rotatably connected to the inner wall of the mounting frame 2, one end of the I-shaped wheel 3 is inlaid with a power-carrying column 4, one end of the power-carrying column 4 is fixedly connected to a first power-connecting head 5, an inner wall of the first power-connecting head 5 is fixedly connected to a coiled cable 6, the other end of the power-carrying column 4 is rotatably connected to a second power-connecting head 7, a connecting cable 8 is fixedly connected to the inner wall of the second power-connecting head 7, a through hole 9 is opened on the side of the mounting frame 2, one end of the connecting cable 8 passes through the through hole 9, a guiding mechanism is arranged on the upper surface of the base frame 1, a damping shock absorber 19 is fixedly connected to the lower surface of the base frame 1, a moving frame 20 is rotatably connected to the lower surface of the damping shock absorber 19, a moving frame 20 is rotatably connected to the inner wall of the moving frame 20, and the base frame 1 is connected to the moving wheel 21 through the When the moving wheel 21 moves and the base frame 1 moves, the damping shock absorber 19 performs shock absorption. The surface of the damping shock absorber 19 is fixedly connected with a supporting rib 22. The supporting rib 22 connects the damping shock absorber 19 together. A weight-reducing groove 23 is provided on the upper surface of the base frame 1. The weight-reducing groove 23 reduces the weight of the base frame 1. The corners of the upper surface of the base frame 1 are set as rounded corners. The coiled cable 6 is wound on the I-shaped wheel 3. The base frame 1 moves with the tunneling machine. The I-shaped wheel 3 is rotated while the base frame 1 moves, and the coiled cable 6 wound on the I-shaped wheel 3 is released through the guide mechanism. The I-shaped wheel 3 causes the power-on column 4 and the second power-on head 7 to rotate. The power-on column 4 and the second power-on head 7 rotate to cooperate with power supply, so that the connecting cable 8 is connected to the coiled cable 6 through the second power-on head 7, the power-on column 4 and the first power-on head 5, without affecting the use of the cable.

[0039] Reference Figure 1-Figure 6The guide mechanism includes a fixed frame 10 and a movable seat 14 fixedly mounted on the upper surface of the base frame 1, a driving motor 11 is fixedly connected to the side of the fixed frame 10, a lead screw 12 is rotatably connected to the inner wall of the fixed frame 10, a guide rod 13 is fixedly connected to the inner wall of the fixed frame 10, a threaded sleeve 16 is provided at the bottom of the movable seat 14, the inner wall of the threaded sleeve 16 is threadedly connected to the lead screw 12, a sliding sleeve 15 is provided at the bottom of the movable seat 14, the inner wall of the sliding sleeve 15 is slidably connected to the guide rod 13, a guide frame 17 is fixedly connected to the inner bottom wall of the movable seat 14, and two guide rollers 18 are rotatably connected to the inner wall of the guide frame 17. A limiting groove is provided on the surface of the guide roller 18, and an anti-slip pattern is provided on the inner wall of the limiting groove. One end of the coiled cable 6 is passed through the guide rollers 18 in the guide frame 17, and this end of the coiled cable 6 is connected to the tunneling machine. When the coiled cable 6 is released, the driving motor 11 drives the lead screw 12 to rotate, and through the threaded cooperation of the lead screw 12 and the threaded sleeve 16, the movable seat 14 moves along the sliding sleeve 15 through the sliding sleeve 15, thereby driving the guide frame 17 to move back and forth, which is convenient for the release of the coiled cable 6. When the coiled cable 6 is retracted, the guide frame 17 moves back and forth in the same way, which is convenient for the coiled cable 6 to be wound on the I-shaped wheel 3.

[0040] Working principle: one end of the coiled cable 6 is passed through the guide rollers 18 in the guide frame 17, and this end of the coiled cable 6 is connected to the tunneling machine. The base frame 1 moves with the tunneling machine, and the I-shaped wheel 3 is rotated while the base frame 1 moves, so that the coiled cable 6 wound on the I-shaped wheel 3 is released through the guide mechanism, and the driving motor 11 drives the lead screw 12 to rotate. Through the threaded cooperation of the lead screw 12 and the threaded sleeve 16, the movable seat 14 moves along the sliding sleeve 15 through the sliding sleeve 15, thereby driving the guide frame 17 to move back and forth, which is convenient for the release of the coiled cable 6. The I-shaped wheel 3 causes the power-on column 4 and the second power-on head 7 to rotate, and the power-on column 4 and the second power-on head 7 rotate to cooperate with each other to connect electricity, so that the connecting cable 8 is connected to the coiled cable 6 through the second power-on head 7, the power-on column 4 and the first power-on head 5, which does not affect the use of the cable. When the coiled cable 6 is retracted, the guide frame 17 moves back and forth in the same way, which is convenient for the coiled cable 6 to be wound on the I-shaped wheel 3.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable dragging device for a roadheader, comprising a base frame (1), characterized in that: The upper surface of the base frame (1) is fixedly connected to a mounting frame (2), the inner wall of the mounting frame (2) is rotatably connected to an I-shaped wheel (3), one end of the I-shaped wheel (3) is inlaid with an electric pole (4), one end of the electric pole (4) is fixedly connected to a first electric terminal (5), the inner wall of the first electric terminal (5) is fixedly connected to a coiled cable (6), the other end of the electric pole (4) is rotatably connected to a second electric terminal (7), the inner wall of the second electric terminal (7) is fixedly connected to a connecting cable (8), a through hole (9) is provided on the side of the mounting frame (2), one end of the connecting cable (8) passes through the through hole (9), and a guide mechanism is provided on the upper surface of the base frame (1).

2. The cable dragging device for a tunnel boring machine according to claim 1, characterized in that: The guide mechanism comprises a fixed frame (10) and a movable seat (14) fixedly mounted on the upper surface of the base frame (1); a driving motor (11) is fixedly connected to the side surface of the fixed frame (10).

3. The cable dragging device for a tunnel boring machine according to claim 2, characterized in that: The inner wall of the fixed frame (10) is rotatably connected to a lead screw (12), and the inner wall of the fixed frame (10) is fixedly connected to a guide rod (13).

4. The cable dragging device for a tunnel boring machine according to claim 3, characterized in that: A threaded sleeve (16) is provided at the bottom of the movable seat (14), and the inner wall of the threaded sleeve (16) is threadedly connected to the lead screw (12).

5. The cable dragging device for a tunnel boring machine according to claim 4, characterized in that: A sliding sleeve (15) is provided at the bottom of the movable seat (14), and the inner wall of the sliding sleeve (15) is slidably connected to the guide rod (13).

6. The cable dragging device for a roadheader according to claim 5, characterized in that: The inner bottom wall of the movable seat (14) is fixedly connected to a guide frame (17), and the inner wall of the guide frame (17) is rotatably connected to two guide rollers (18).

7. The cable dragging device for a tunnel boring machine according to claim 6, characterized in that: The surface of the guide roller (18) is provided with a limiting groove, and the inner wall of the limiting groove is provided with anti-slip grooves.

8. The cable dragging device for a tunnel boring machine according to claim 1, characterized in that: The lower surface of the base frame (1) is fixedly connected to a damping shock absorber (19), and the lower surface of the damping shock absorber (19) is rotatably connected to a moving frame (20).

9. The cable dragging device for a tunnel boring machine according to claim 8, characterized in that: The inner wall of the movable frame (20) is rotatably connected to a movable wheel (21), and the surface of the damping shock absorber (19) is fixedly connected to a supporting rib (22).

10. The cable dragging device for a tunnel boring machine according to claim 1, characterized in that: A weight-reducing groove (23) is provided on the upper surface of the base frame (1), and the corners of the upper surface of the base frame (1) are rounded.

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