Hydraulic forepoling bar supporting device of cantilever type heading machine

Abstract

The utility model discloses a hydraulic forepoling bar supporting device of a cantilever type heading machine, and relates to the technical field of heading machines, in particular to the hydraulic forepoling bar supporting device of the cantilever type heading machine, which comprises a cavity supporting plate and a cylinder, a threaded rod concentric with the axis of the output end of the first servo motor is installed at the output end of the first servo motor, the outer surface of the threaded rod is in transmission connection with a threaded ring block, and a convex sliding block is installed at the bottom of the threaded ring block. According to the hydraulic forepoling bar supporting device for the cantilever type heading machine, through the arrangement of a first servo motor, a threaded rod, a threaded ring block, a convex sliding block and an extension plate, the hydraulic forepoling bar supporting device for the cantilever type heading machine has the effect of conveniently extending and increasing the supporting area of the supporting plate; the extension plate can be conveniently and outwards extended and moved, the supporting area is increased, and the purpose of improving practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel boring machines, in particular to a hydraulic front exploration beam supporting device for a cantilever type tunnel boring machine. Background Art

[0002] Due to the special production environment of coal mines, tunneling is just like coal mining, and various accidents may occur during construction. Roof accidents at the tunneling working face account for about 20% of the total roof accidents in coal mines. Roof accidents are mainly caused by the formation of a tunnel after the underground is excavated. Due to the effect of ground pressure, the top rock of this exposed tunnel will sink and emerge. To prevent such accidents, the tunnel must be supported. Hydraulic front exploration beam support is an indispensable device for temporary support of underground tunnel excavation, which is installed on the cutting part of the tunnel boring machine.

[0003] In the prior art, the cantilever tunnel boring machine hydraulic front probe beam support device has a fixed length of the support plate, which is not convenient for extension and adjustment to increase the support area and has poor practicality. In addition, the existing cantilever tunnel boring machine hydraulic front probe beam support device is not convenient for adjusting the position of the support plate, which affects the operation of the tunnel boring machine. A cantilever tunnel boring machine hydraulic front probe beam support device is now invented to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a hydraulic front exploration beam support device for a cantilever type tunnel boring machine, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a cantilever tunneling machine hydraulic front exploration beam support device, including a cavity support plate and a cylinder, a first servo motor is installed inside the cavity support plate, a threaded rod with the same center as the axis of the output end of the first servo motor is installed at the output end of the first servo motor, a threaded ring block is transmission-connected to the outer surface of the threaded rod, a convex slider is installed at the bottom of the threaded ring block, an extension plate is installed at the top of the threaded ring block, a second servo motor is installed on the inner top wall of the cylinder, a gear with the same center as the axis of the output end of the second servo motor is installed at the output end of the second servo motor, a round rod is rotatably connected to the inner bottom wall of the cylinder through a bearing, a disc is installed on the top of the round rod, an annular slider and an outer gear ring are respectively installed on the outer surface of the disc, a support plate is installed on the top of the disc, a matching block is installed on the top of the support plate, the rear of the matching block is rotatably connected to the support plate through a shaft rod, the top of the support plate is rotatably connected to the first electric hydraulic push rod through the shaft rod, and both side surfaces of the support plate are rotatably connected to the second electric hydraulic push rod through the shaft rod.

[0008] Optionally, the inner bottom wall of the cavity support plate is provided with a convex slide groove having a depth in the vertical direction and a length in the left-right direction, the end of the convex sliding block is located inside the convex slide groove, and the convex sliding block can slide along the length direction of the convex slide groove.

[0009] Optionally, one end of the extension plate is located inside the cavity support plate, and the other end of the extension plate is located outside the cavity support plate.

[0010] Optionally, an annular slide groove with a depth in the vertical direction is opened on the inner surface of the cylinder, and the end of the annular sliding block is located inside the annular slide groove.

[0011] Optionally, the gear is meshed with the outer gear ring through teeth, and the cylinder, the round rod, the disk, the annular slider and the outer gear ring all have the same center.

[0012] Optionally, one end of the threaded rod away from the first servo motor is rotatably connected to the inner wall of the cavity support plate through a bearing, and the first servo motor, the second servo motor, the first electric hydraulic push rod and the second electric hydraulic push rod are all electrically connected to an external power supply through wires.

[0013] Optionally, the position of the annular slider is higher than that of the outer gear ring, and the cavity support plate is rotatably connected to the support plate via a shaft.

[0014] Optionally, the movable end of the first electric hydraulic push rod is rotatably connected to a side surface of the support plate via a shaft, and the movable end of the second electric hydraulic push rod is rotatably connected to the bottom of the cavity support plate via a shaft.

[0015] (III) Beneficial effects

[0016] The utility model provides a cantilever type tunnel boring machine hydraulic front exploration beam support device, which has the following beneficial effects:

[0017] 1. The hydraulic front beam support device of the cantilever tunnel boring machine has the effect of conveniently extending and increasing the support area of ​​the support plate through the arrangement of the first servo motor, the threaded rod, the threaded ring block, the convex sliding block and the extension plate. Through the cooperation of the threaded rod and the threaded ring block, the extension plate can be conveniently extended outward to increase the support area, thereby achieving the purpose of improving practicality.

[0018] 2. The hydraulic front beam support device of the cantilever tunnel boring machine has the effect of conveniently adjusting the support position of the cavity support plate through the arrangement of the second servo motor, gears, round rods, discs, annular sliders, external gear rings, support plates, matching blocks, support plates, first electric hydraulic push rods and second electric hydraulic push rods. The position of the cavity support plate can be conveniently adjusted by rotation through the cooperation of the gears and the external gear ring. The stability of the support of the cavity support plate is improved through the cooperation of the first electric hydraulic push rod and the second electric hydraulic push rod, thereby achieving the purpose of improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the utility model in front view section;

[0021] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a schematic diagram of the structure of the side cross-section of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the utility model when viewed from above.

[0024] In the figure: 1. cavity support plate; 2. cylinder; 3. first servo motor; 4. threaded rod; 5. threaded ring block; 6. convex slider; 7. extension plate; 8. second servo motor; 9. gear; 10. round rod; 11. disk; 12. annular slider; 13. outer gear ring; 14. support plate; 15. matching block; 16. support plate; 17. first electric hydraulic push rod; 18. second electric hydraulic push rod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1

[0027] See also Figures 1 to 4The utility model provides a technical solution: a cantilever type tunnel boring machine hydraulic front exploration beam support device, including a cavity support plate 1 and a cylinder 2, the inner bottom wall of the cavity support plate 1 is provided with a convex slide groove with a depth in the up-down direction and a length in the left-right direction, the end of the convex slide block 6 is located inside the convex slide groove, and the convex slide block 6 can slide along the length direction of the convex slide groove, the inner surface of the cylinder 2 is provided with an annular slide groove with a depth in the up-down direction, the end of the annular slide block 12 is located inside the annular slide groove, a first servo motor 3 is installed inside the cavity support plate 1, and an output end of the first servo motor 3 is provided with a motor connected to the first servo motor 3. The axis of the output end of the servo motor 3 is a threaded rod 4 with the same center of a circle, and the end of the threaded rod 4 away from the first servo motor 3 is rotatably connected to the inner wall of the cavity support plate 1 through a bearing, and the first servo motor 3, the second servo motor 8, the first electric hydraulic push rod 17 and the second electric hydraulic push rod 18 are all electrically connected to the external power supply through wires, and the outer surface of the threaded rod 4 is transmission-connected with a threaded ring block 5, a convex sliding block 6 is installed at the bottom of the threaded ring block 5, and an extension plate 7 is installed on the top of the threaded ring block 5, one end of the extension plate 7 is located inside the cavity support plate 1, and the other end of the extension plate 7 is located outside the cavity support plate 1.

[0028] When in use, the cylinder 2 is welded and installed on the top of the tunneling machine, and the movable end of the first electric hydraulic push rod 17 is extended to facilitate the rotation and adjustment of the inclination angle of the support plate 16. The support plate 16 is rotatably connected to the cavity support plate 1, and the movable end of the second electric hydraulic push rod 18 is extended to facilitate the rotation and adjustment of the cavity support plate 1 to improve the stability of the support. The first servo motor 3 drives the threaded rod 4 to rotate, and the threaded rod 4 is transmission-connected to the threaded ring block 5, and the end of the convex slider 6 is located inside the convex slide groove, so that the threaded ring block 5 drives the convex slider 6 and the extension plate 7 to move, which facilitates the extension plate 7 to extend outward and increase the support area. Conversely, it is convenient to store the extension plate 7, reduce the occupied space, and improve practicality.

[0029] Example 2

[0030] See also Figures 1 to 5The utility model provides a technical solution: a cantilever type tunnel boring machine hydraulic front exploration beam support device, the inner top wall of the cylinder 2 is installed with a second servo motor 8, the output end of the second servo motor 8 is installed with a gear 9 with the same center as the axis of the output end of the second servo motor 8, the gear 9 is meshed with an outer gear ring 13 through teeth, the cylinder 2, the round rod 10, the disk 11, the annular slider 12 and the outer gear ring 13 are all at the same center, the inner bottom wall of the cylinder 2 is rotatably connected with the round rod 10 through a bearing, the top of the round rod 10 is installed with a disk 11, the outer surface of the disk 11 is respectively installed with an annular slider 12 and an outer gear ring 13, the position of the annular slider 12 is high At the position of the outer gear ring 13, the cavity support plate 1 is rotatably connected to the support plate 16 through a shaft, a support plate 14 is installed on the top of the disc 11, a matching block 15 is installed on the top of the support plate 14, the back of the matching block 15 is rotatably connected to the support plate 16 through a shaft, the top of the support plate 14 is rotatably connected to the first electric hydraulic push rod 17 through the shaft, the movable end of the first electric hydraulic push rod 17 is rotatably connected to one side of the support plate 16 through the shaft, the movable end of the second electric hydraulic push rod 18 is rotatably connected to the bottom of the cavity support plate 1 through the shaft, and both side surfaces of the support plate 16 are rotatably connected to the second electric hydraulic push rod 18 through the shaft.

[0031] During use, when rotating and adjusting the position of the cavity support plate 1, the second servo motor 8 drives the gear 9 to rotate, the gear 9 engages with the outer gear ring 13, and the round rod 10 is rotatably connected with the cylinder 2, so that the outer gear ring 13 drives the disc 11, the round rod 10 and the annular slider 12 to rotate, and the end of the annular slider 12 is located inside the annular slide groove. The annular slider 12 plays a role of auxiliary rotation, improves the stability of rotation, facilitates the rotation adjustment of the position of the cavity support plate 1, and improves practicality.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cantilever type tunnel boring machine hydraulic front beam support device, comprising a cavity support plate and a cylinder, characterized in that: A first servo motor is installed inside the cavity support plate, and a threaded rod with the same axis as the output end of the first servo motor is installed at the output end of the first servo motor, and a threaded ring block is transmission-connected to the outer surface of the threaded rod, a convex slider is installed at the bottom of the threaded ring block, and an extension plate is installed on the top of the threaded ring block. A second servo motor is installed on the inner top wall of the cylinder, and a gear with the same axis as the output end of the second servo motor is installed at the output end, and a round rod is rotatably connected to the inner bottom wall of the cylinder through a bearing, a disc is installed on the top of the round rod, and an annular slider and an outer gear ring are respectively installed on the outer surface of the disc, a support plate is installed on the top of the disc, a matching block is installed on the top of the support plate, the rear of the matching block is rotatably connected to the support plate through a shaft rod, the top of the support plate is rotatably connected to the first electric hydraulic push rod through the shaft rod, and both side surfaces of the support plate are rotatably connected to the second electric hydraulic push rod through the shaft rod.

2. A cantilever type tunnel boring machine hydraulic front exploration beam support device according to claim 1, characterized in that: The inner bottom wall of the cavity support plate is provided with a convex slide groove with a depth in the vertical direction and a length in the left-right direction. The end of the convex sliding block is located inside the convex slide groove, and the convex sliding block can slide along the length direction of the convex slide groove.

3. The cantilever type tunnel boring machine hydraulic front beam support device according to claim 1, characterized in that: One end of the extension plate is located inside the cavity supporting plate, and the other end of the extension plate is located outside the cavity supporting plate.

4. The hydraulic front beam support device of a cantilever type tunnel boring machine according to claim 1, characterized in that: An annular sliding groove with a depth in the up-down direction is provided on the inner surface of the cylinder, and the end of the annular sliding block is located inside the annular sliding groove.

5. The hydraulic front beam support device of a cantilever type tunnel boring machine according to claim 1, characterized in that: The gear is meshed with the outer gear ring through teeth, and the cylinder, the round rod, the disk, the annular slider and the outer gear ring all have the same center.

6. The cantilever type tunnel boring machine hydraulic front exploration beam support device according to claim 1, characterized in that: One end of the threaded rod away from the first servo motor is rotatably connected to the inner wall of the cavity support plate through a bearing, and the first servo motor, the second servo motor, the first electric hydraulic push rod and the second electric hydraulic push rod are all electrically connected to an external power supply through wires.

7. The cantilever type tunnel boring machine hydraulic front beam support device according to claim 1, characterized in that: The position of the annular sliding block is higher than that of the outer gear ring, and the cavity supporting plate is rotatably connected with the supporting plate through a shaft rod.

8. The cantilever type tunnel boring machine hydraulic front beam support device according to claim 1, characterized in that: The movable end of the first electric hydraulic push rod is rotatably connected to a side surface of the support plate through a shaft rod, and the movable end of the second electric hydraulic push rod is rotatably connected to the bottom of the cavity support plate through a shaft rod.

Images