Anchoring device for a tunneling machine

Abstract

This utility model discloses an anchoring device for a tunneling machine, comprising a first frame, a rotating assembly at the bottom of the first frame for driving the first frame to rotate, a movable arm with an adjustable tilt angle on the first frame, a telescopic arm inside the movable arm, a second frame at one end of the telescopic arm, the second frame being rotatably connected to the telescopic arm, a rotatable mounting plate on the second frame, a top plate movably mounted on the mounting plate, and a pushing assembly at the bottom of the top plate for moving the anchor bolt. Through this structure, the first frame and the rotating assembly cooperate to achieve primary adjustment, the telescopic arm and the movable arm achieve secondary adjustment, the movable arm with an adjustable tilt angle achieves tertiary adjustment, and the rotating mounting plate achieves quaternary adjustment. Combined with the support of the top plate and the insertion of the pushing assembly into the anchor bolt, multi-degree-of-freedom spatial adjustment is achieved, expanding the anchoring coverage area, facilitating safe operation by personnel, and improving construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tunneling machine technology, and in particular to an anchoring device for tunneling machines. Background Technology

[0002] Roadheader-anchor (BAR) machines are widely used in mine roadway excavation and support. During roadway excavation, anchoring is a crucial step in ensuring roadway stability and safety.

[0003] In the prior art, a search revealed a Chinese patent disclosing "An anchoring device for a tunneling machine," application number "202120275599.5." This patent mainly includes a base rod A, a base rod B, threaded holes, bolts, and an assembly base A. One side of the assembly base A has an A rotating hole, inside which an A rotating shaft is movably connected. A hydraulic rod A is fixedly connected to the back of the A rotating shaft. A base plate A is fixedly connected to the upper surface of the base rod B, and a base plate B is fixedly connected to the upper surface of the base plate A. A hydraulic rod B is fixedly connected to the upper surface of the base plate B. While this patent facilitates the use of anchor plates and anchor rods to protect the tunneling machine from above, improving the equipment's protective effect and adaptability, the patent's method of using three hydraulic rods to adjust the orientation of the anchor plates and anchor rods for anchoring operations lacks flexibility, providing only a limited range of orientation adjustment. This makes it difficult for the anchor plates to better conform to the roof or sidewalls in complex tunnel environments, resulting in poor applicability and affecting the anchoring effect. Therefore, this utility model provides an anchoring device for a tunneling machine to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide an anchoring device for a tunneling machine. The first frame and the rotating component work together to achieve primary adjustment, the telescopic arm and the movable arm achieve secondary adjustment, the movable arm with adjustable tilt angle achieves tertiary adjustment, and the rotating mounting plate achieves quaternary adjustment. With the support and pushing components of the top plate, the anchor rod is inserted, realizing multi-degree-of-freedom spatial adjustment. It can adapt to complex tunnel conditions, expand the anchoring coverage, facilitate safe operation by personnel, and improve construction efficiency.

[0005] To achieve the above objectives, an anchoring device for a tunneling machine is provided, comprising a first frame, a rotating assembly for driving the first frame to rotate at its bottom, a movable arm with an adjustable tilt angle on the first frame, a telescopic arm inside the movable arm, a second frame at one end of the telescopic arm, the second frame being rotatably connected to the telescopic arm, a rotatable mounting plate on the second frame, a top plate movably mounted on the mounting plate, and a pushing assembly for pushing the anchor bolt to move at the bottom of the top plate.

[0006] According to the anchoring device for a tunneling machine, the rotating assembly includes a fixed base, a second rotating shaft rotating on the top of the fixed base, a second gear fixed on the second rotating shaft, an eighth hydraulic cylinder fixed on the top of the fixed base, and a second rack fixed on the drive end of the eighth hydraulic cylinder. The first frame is fixed to the top of the second rotating shaft, and the second rack is meshed with the second gear.

[0007] According to the aforementioned anchoring device for a tunneling machine, one end of the movable arm is rotatably connected to a first frame, and a fourth hydraulic cylinder is rotatably connected to the first frame and located below the movable arm. The drive end of the fourth hydraulic cylinder is rotatably connected to the bottom of the movable arm.

[0008] According to the aforementioned anchoring device for a tunneling machine, the movable arm has a hollow structure inside and a seventh hydraulic cylinder is fixedly installed therein. The telescopic arm slides inside the movable arm, and the drive end of the seventh hydraulic cylinder is fixedly connected to the telescopic arm.

[0009] According to the aforementioned anchoring device for a tunneling machine, the second frame has a hollow groove inside, one end of the telescopic arm is rotatably connected to the inside of the hollow groove, and a fifth hydraulic cylinder is rotatably connected to the bottom of the telescopic arm, with the driving end of the fifth hydraulic cylinder rotatably connected to the bottom wall of the hollow groove.

[0010] According to the anchoring device for a tunneling machine, a first rotating shaft is rotatably connected to the second frame, the mounting plate is fixed to one end of the first rotating shaft, a sixth hydraulic cylinder is fixed to the bottom wall of the hollow groove, a first rack is fixed to the drive end of the sixth hydraulic cylinder, and a first gear is fixed to the first rotating shaft and meshes with the first rack.

[0011] According to the aforementioned anchoring device for a tunneling machine, the mounting plate has an internal mounting groove, a first hydraulic cylinder is fixedly mounted on the bottom wall of the mounting groove, the top plate is fixedly mounted on the driving end of the first hydraulic cylinder, the pushing assembly includes a connecting plate, a second hydraulic cylinder, a third hydraulic cylinder and a insert plate, the second hydraulic cylinder is fixedly mounted on the bottom of the top plate, the connecting plate is fixedly mounted on the driving end of the second hydraulic cylinder, the third hydraulic cylinder is fixedly mounted on the bottom of the connecting plate, and the insert plate is fixedly mounted on the driving end of the third hydraulic cylinder.

[0012] According to the aforementioned anchoring device for a tunneling machine, a foot pedal is fixed to one side of the second frame, and a control panel is fixed to the top of the second frame.

[0013] This utility model has the following beneficial effects:

[0014] Compared with existing technologies, the first frame and rotating components work together to achieve primary adjustment, the telescopic arm and movable arm achieve secondary adjustment, the movable arm with adjustable tilt angle achieves tertiary adjustment, and the rotating mounting plate achieves quaternary adjustment. With the support and pushing components of the top plate for embedding anchor bolts, it achieves multi-degree-of-freedom spatial adjustment, which can adapt to complex tunnel conditions, expand the anchor coverage, facilitate safe operation by personnel, and improve construction efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the structure of an anchoring device for a tunneling machine according to the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of an anchoring device for a tunneling machine according to the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic cross-sectional view of the first frame, second frame, and movable arm of an anchoring device for a tunneling machine according to the present invention.

[0019] Figure 4 This is a schematic cross-sectional view of the internal structure of the mounting plate of an anchor protection device for a tunneling machine according to the present invention.

[0020] Legend:

[0021] 1. First frame; 2. Movable arm; 3. Telescopic arm; 4. Second frame; 5. Mounting plate; 6. Top plate; 7. First hydraulic cylinder; 8. Connecting plate; 9. Second hydraulic cylinder; 10. Third hydraulic cylinder; 11. Fourth hydraulic cylinder; 12. Fifth hydraulic cylinder; 13. First rotating shaft; 14. First gear; 15. First rack; 16. Sixth hydraulic cylinder; 17. Seventh hydraulic cylinder; 18. Second rotating shaft; 19. Second rack; 20. Eighth hydraulic cylinder; 21. Pedal; 22. Control panel; 23. Second gear; 24. Fixed base; 25. Insert plate. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-4This utility model provides an anchoring device for a tunneling machine, comprising a first frame 1, a rotating assembly at the bottom of the first frame 1 for driving the first frame 1 to rotate, a movable arm 2 with an adjustable tilt angle on the first frame 1, a telescopic arm 3 inside the movable arm 2, a second frame 4 at one end of the telescopic arm 3, the second frame 4 being rotatably connected to the telescopic arm 3, a rotatable mounting plate 5 on the second frame 4, a top plate 6 movably mounted on the mounting plate 5, and a pushing assembly at the bottom of the top plate 6 for pushing the anchor rod to move.

[0024] The fixed base 24 is installed on the tunneling machine. The first frame 1 and the rotating component work together to achieve the first-level adjustment. The telescopic arm 3 and the movable arm 2 achieve the second-level adjustment. The movable arm 2, which can adjust the tilt angle, achieves the third-level adjustment. The rotating mounting plate 5 achieves the fourth-level adjustment. With the support and pushing components of the top plate 6, the anchor bolts are inserted to achieve multi-degree-of-freedom spatial adjustment. It can adapt to complex tunnel conditions, expand the anchor protection coverage, facilitate safe operation by personnel, and improve construction efficiency.

[0025] The rotating assembly includes a fixed base 24, a second rotating shaft 18 rotating on the top of the fixed base 24, a second gear 23 fixed on the second rotating shaft 18, an eighth hydraulic cylinder 20 fixed on the top of the fixed base 24, and a second rack 19 fixed on the drive end of the eighth hydraulic cylinder 20. The first frame 1 is fixed to the top of the second rotating shaft 18, and the second rack 19 is meshed with the second gear 23.

[0026] The eighth hydraulic cylinder 20 is activated, driving the second rack 19 to rotate the second gear 23, causing the first frame 1 on the second rotating shaft 18 to rotate horizontally. This adjusts the second frame 4 to the target position.

[0027] One end of the movable arm 2 is rotatably connected to the first frame 1. A fourth hydraulic cylinder 11 is rotatably connected to the first frame 1 and located below the movable arm 2. The driving end of the fourth hydraulic cylinder 11 is rotatably connected to the bottom of the movable arm 2. The movable arm 2 has a hollow structure inside and a seventh hydraulic cylinder 17 is fixedly installed. The telescopic arm 3 slides inside the movable arm 2. The driving end of the seventh hydraulic cylinder 17 is fixedly connected to the telescopic arm 3.

[0028] The fourth hydraulic cylinder 11 pushes the movable arm 2 to rise or fall around its hinge point with the first frame 1, adjusting the tilt angle of the second frame 4.

[0029] The seventh hydraulic cylinder 17 pushes the telescopic arm 3 to extend along the inside of the movable arm 2, adjusts the position of the second frame 4, and extends the anchoring range.

[0030] The second frame 4 has a hollow groove inside. One end of the telescopic arm 3 is rotatably connected to the inside of the hollow groove. A fifth hydraulic cylinder 12 is rotatably connected to the bottom of the telescopic arm 3. The driving end of the fifth hydraulic cylinder 12 is rotatably connected to the bottom wall of the hollow groove. A first rotating shaft 13 is rotatably connected to the second frame 4. A mounting plate 5 is fixed to one end of the first rotating shaft 13. A sixth hydraulic cylinder 16 is fixed to the bottom wall of the hollow groove. A first rack 15 is fixed to the driving end of the sixth hydraulic cylinder 16. A first gear 14 that meshes with the first rack 15 is fixed to the first rotating shaft 13.

[0031] The fifth hydraulic cylinder 12 adjusts the pitch angle of the second frame 4 relative to the telescopic arm 3 so as to keep the second frame 4 horizontal when the movable arm 2 adjusts its angle. The sixth hydraulic cylinder 16 drives the first rotating shaft 13 to rotate the mounting plate 5 horizontally through the meshing of the first rack 15 and the first gear 14, thereby adjusting the support position of the top plate 6 and the anchoring position of the anchor bolt.

[0032] The mounting plate 5 has a mounting groove inside, and a first hydraulic cylinder 7 is fixed on the bottom wall of the mounting groove. The top plate 6 is fixed on the driving end of the first hydraulic cylinder 7. The pushing assembly includes a connecting plate 8, a second hydraulic cylinder 9, a third hydraulic cylinder 10 and a insert plate 25. The second hydraulic cylinder 9 is fixed on the bottom of the top plate 6, the connecting plate 8 is fixed on the driving end of the second hydraulic cylinder 9, the third hydraulic cylinder 10 is fixed on the bottom of the connecting plate 8, and the insert plate 25 is fixed on the driving end of the third hydraulic cylinder 10.

[0033] During the anchor bolt installation stage, the roof plate 6 is raised and lowered by the first hydraulic cylinder 7 until it is in contact with the roadway roof, providing support reaction force; the second hydraulic cylinder 9 extends to increase the distance between the connecting plate 8 and the roadway roof, placing the anchor bolt inside the groove of the insert plate 25. The second hydraulic cylinder 9 pushes the connecting plate 8, the third hydraulic cylinder 10 and the insert plate 25 to move. The third hydraulic cylinder 10 further pushes the insert plate 25 to move. The third hydraulic cylinder 10 applies a thrust to push the anchor bolt along the roof plate 6 towards the rock wall, completing the implantation.

[0034] A foot pedal 21 is fixed on one side of the second frame 4, and a control panel 22 is fixed on the top of the second frame 4. The operator stands on the foot pedal 21 and operates the control panel 22 to control the anchoring device.

[0035] Working principle: The fixed base 24 is installed on the tunneling machine. The eighth hydraulic cylinder 20 is started, which drives the second rack 19 to rotate the second gear 23, causing the first frame 1 on the second rotating shaft 18 to rotate horizontally. This adjusts the second frame 4 to the target position.

[0036] The fourth hydraulic cylinder 11 pushes the movable arm 2 to rise or fall around its hinge point with the first frame 1, adjusting the tilt angle of the second frame 4; the seventh hydraulic cylinder 17 pushes the telescopic arm 3 to extend along the inside of the movable arm 2, adjusting the position of the second frame 4 and extending the anchoring range.

[0037] The fifth hydraulic cylinder 12 adjusts the pitch angle of the second frame 4 relative to the telescopic arm 3 so as to keep the second frame 4 horizontal when the movable arm 2 adjusts its angle. The sixth hydraulic cylinder 16 drives the first rotating shaft 13 to rotate the mounting plate 5 horizontally through the meshing of the first rack 15 and the first gear 14, thereby adjusting the support position of the top plate 6 and the anchoring position of the anchor bolt.

[0038] The roof plate 6 is raised and lowered by the first hydraulic cylinder 7 until it fits against the roadway roof, providing support reaction force; the second hydraulic cylinder 9 extends to increase the distance between the connecting plate 8 and the roadway roof, placing the anchor rod inside the groove of the insert plate 25. The second hydraulic cylinder 9 pushes the connecting plate 8, the third hydraulic cylinder 10 and the insert plate 25 to move. The third hydraulic cylinder 10 further pushes the insert plate 25 to move. The third hydraulic cylinder 10 applies a thrust to push the anchor rod along the roof plate 6 towards the rock wall, completing the implantation.

[0039] The first frame 1, in conjunction with the rotating component, achieves primary adjustment; the telescopic arm 3, in conjunction with the movable arm 2, achieves secondary adjustment; the movable arm 2, with its adjustable tilt angle, achieves tertiary adjustment; and the rotating mounting plate 5 achieves quaternary adjustment. Together with the support and pushing components of the top plate 6, the anchor bolts are inserted, enabling multi-degree-of-freedom spatial adjustment. This allows the system to adapt to complex tunnel conditions, expands the anchoring coverage, facilitates safe operation by personnel, and improves construction efficiency.

[0040] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An anchoring device for a tunneling machine, comprising a first frame (1), characterized in that, The first frame (1) has a rotating component at the bottom for driving the first frame (1) to rotate. The first frame (1) has an adjustable tilt angle movable arm (2). The movable arm (2) has a telescopic arm (3) inside. One end of the telescopic arm (3) has a second frame (4). The second frame (4) is rotatably connected to the telescopic arm (3). The second frame (4) has a rotatable mounting plate (5). The mounting plate (5) has a top plate (6) movably mounted on it. The bottom of the top plate (6) has a pushing component for pushing the anchor rod to move.

2. The anchoring device for a tunneling machine according to claim 1, characterized in that, The rotating assembly includes a fixed base (24), a second rotating shaft (18) rotating on the top of the fixed base (24), a second gear (23) fixed on the second rotating shaft (18), an eighth hydraulic cylinder (20) fixed on the top of the fixed base (24), and a second rack (19) fixed on the drive end of the eighth hydraulic cylinder (20). The first frame (1) is fixed to the top of the second rotating shaft (18), and the second rack (19) is meshed with the second gear (23).

3. The anchoring device for a tunneling machine according to claim 2, characterized in that, One end of the movable arm (2) is rotatably connected to the first frame (1), and a fourth hydraulic cylinder (11) is rotatably connected on the first frame (1) and below the movable arm (2). The driving end of the fourth hydraulic cylinder (11) is rotatably connected to the bottom of the movable arm (2).

4. The anchoring device for a tunneling machine according to claim 1, characterized in that, The movable arm (2) has a hollow structure inside and a seventh hydraulic cylinder (17) is fixedly installed. The telescopic arm (3) slides inside the movable arm (2). The drive end of the seventh hydraulic cylinder (17) is fixedly connected to the telescopic arm (3).

5. An anchoring device for a tunneling machine according to claim 4, characterized in that, The second frame (4) has a hollow groove inside. One end of the telescopic arm (3) is rotatably connected to the inside of the hollow groove. The bottom of the telescopic arm (3) is rotatably connected to a fifth hydraulic cylinder (12). The driving end of the fifth hydraulic cylinder (12) is rotatably connected to the bottom wall of the hollow groove.

6. An anchoring device for a tunneling machine according to claim 5, characterized in that, The second frame (4) is rotatably connected to a first rotating shaft (13), the mounting plate (5) is fixed to one end of the first rotating shaft (13), the bottom wall of the hollow groove is fixedly provided with a sixth hydraulic cylinder (16), the drive end of the sixth hydraulic cylinder (16) is fixedly provided with a first rack (15), and the first rotating shaft (13) is fixedly provided with a first gear (14) that meshes with the first rack (15).

7. An anchoring device for a tunneling machine according to claim 1, characterized in that, The mounting plate (5) has an internal mounting groove. A first hydraulic cylinder (7) is fixed on the bottom wall of the mounting groove. The top plate (6) is fixed on the driving end of the first hydraulic cylinder (7). The pushing assembly includes a connecting plate (8), a second hydraulic cylinder (9), a third hydraulic cylinder (10), and a insert plate (25). The second hydraulic cylinder (9) is fixed on the bottom of the top plate (6). The connecting plate (8) is fixed on the driving end of the second hydraulic cylinder (9). The third hydraulic cylinder (10) is fixed on the bottom of the connecting plate (8). The insert plate (25) is fixed on the driving end of the third hydraulic cylinder (10).

8. An anchoring device for a tunneling machine according to claim 7, characterized in that, A pedal (21) is fixed on one side of the second frame (4), and a control panel (22) is fixed on the top of the second frame (4).

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