Single-cylinder counter-rotating type clamp lever mechanism

Abstract

The utility model relates to a single cylinder counter -rotating type clamp lever mechanism, including connecting seat, first rotary seat, second rotary seat, double -end connecting frame, single -arm connecting frame, connecting rod and drive oil cylinder, be provided with first axle cylinder and second axle cylinder on connecting seat, first rotary seat rotatably sets up on first axle cylinder, second rotary seat rotatably sets up on second axle cylinder, be provided with first clamp groove on first rotary seat, be provided with second clamp groove on second rotary seat, double -end connecting frame is located on first rotary seat, single -arm connecting frame is located on second rotary seat, and both ends of connecting rod are connected with double -end connecting frame and single -arm connecting frame respectively, the cylinder body of drive oil cylinder is connected with double -end connecting frame, and the piston rod is connected with connecting rod, the utility model can replace the mechanical hand on the existing drilling machine, optimize structure design, compact, reduce the space occupied by the stroke of clamping drill rod, and reduce the influence to the layout and width of drilling machine.

Description

Technical Field

[0001] This utility model relates to the field of engineering drilling rigs, specifically to a single-cylinder alternating clamping rod mechanism. Background Technology

[0002] Trenchless drilling rigs are engineering equipment used to drill without excavating the entire ground surface, by simply driving drill rods into the pit and driving the drill rods to rotate along a preset path.

[0003] When trenchless drilling rigs are performing drilling operations, drill rods are used. These drill rods are spliced ​​together and driven into the ground. During the pullback phase after drilling, the drill rods need to be removed and unloaded one by one.

[0004] To facilitate the loading and unloading of drill pipes, existing drilling rigs utilize robotic arms for this purpose. While robotic arms can achieve this, current standard robotic arms are not structurally compact enough, and their large swing stroke occupies significant space, affecting the layout and width of the drilling rig. Utility Model Content

[0005] The purpose of this utility model is:

[0006] Design a single-cylinder alternating rod clamping mechanism to replace the existing robotic arm on the drilling rig. Optimize the structural design, make the components more compact, reduce the space occupied by the stroke of the drill rod clamping, and reduce the impact on the layout and width of the drilling rig.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A single-cylinder rotary clamping mechanism includes a connecting seat, a first rotating seat, a second rotating seat, a double-headed connecting frame, a single-arm connecting frame, a connecting rod, and a driving cylinder. The connecting seat has a first shaft and a second shaft, with their central axes parallel. The first rotating seat is rotatably mounted on the first shaft, and the second rotating seat is rotatably mounted on the second shaft. The first rotating seat has a first clamping groove, and the second rotating seat has a second clamping groove. The double-headed connecting frame is located on the first rotating seat, and the single-arm connecting frame is located on the second rotating seat. Both ends of the connecting rod are connected to the double-headed connecting frame and the single-arm connecting frame, respectively. The cylinder body of the driving cylinder is connected to the double-headed connecting frame, and the piston rod is connected to the connecting rod.

[0009] Furthermore, the first rotating seat is rotatably connected to the first shaft cylinder via a bearing; the second rotating seat is rotatably connected to the second shaft cylinder via a bearing; the rotation axis of the first rotating seat is parallel to the rotation axis of the second rotating seat.

[0010] Furthermore, the first clamping groove is a through groove that extends through the side and end of the first rotating seat; the second clamping groove is a through groove that extends through the side and end of the second rotating seat.

[0011] Furthermore, both the first and second clamping slots are provided with inward-retracting structures, which are located at the ends near the first and second rotating seats.

[0012] Furthermore, the double-headed connecting frame is connected to the side of the first rotating seat, one end of the connecting rod is hinged to the double-headed connecting frame, and the cylinder body of the driving cylinder is hinged to the double-headed connecting frame.

[0013] Furthermore, the single-arm connecting frame is connected to the side of the second rotating seat, and the other end of the connecting rod is hinged to the single-arm connecting frame.

[0014] Furthermore, the piston rod of the drive cylinder is hinged to the connecting rod, and the hinge point is close to the middle of the connecting rod.

[0015] The beneficial effects of this utility model are as follows:

[0016] A single-cylinder rotary clamping rod mechanism replaces the existing robotic arm on drilling rigs. With optimized structural design, the overall structure is compact through the coordinated use of a connecting seat, a first shaft cylinder, a second shaft cylinder, a first rotating seat, a second rotating seat, a double-headed connecting frame, a single-arm connecting frame, a connecting rod, and a drive cylinder. The piston rod of the drive cylinder drives the connecting rod, thereby achieving relative rotation of the first and second clamping slots on the first and second rotating seats to clamp and release the drill rod. Compared to existing robotic arms, this significantly reduces the space occupied by the drill rod clamping stroke, while also minimizing the impact on the layout and width of the drilling rig. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the overall structure of a single-cylinder alternating clamping rod mechanism of the present invention, showing the state of clamping a drill rod.

[0018] Figure 2 This is a top view of the overall structure of the single-cylinder alternating clamping rod mechanism of this utility model, showing the state of clamping the drill rod.

[0019] Figure 3 This is a perspective view of a single-cylinder alternating clamping rod mechanism according to the present invention.

[0020] Figure 4 This is a perspective view of a single-cylinder alternating clamping rod mechanism according to this utility model.

[0021] The attached figures are labeled as follows:

[0022] 1. Connecting seat; 2. First shaft cylinder; 3. Second shaft cylinder; 4. First rotating seat; 5. Second rotating seat; 6. First clamping groove; 7. Second clamping groove; 8. Double-headed connecting frame; 9. Single-arm connecting frame; 10. Connecting rod; 11. Drive cylinder; 20. Retracting structure. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0024] refer to Figures 1 to 4 A single-cylinder rotary clamping mechanism includes a connecting seat 1, a first rotating seat 4, a second rotating seat 5, a double-headed connecting frame 8, a single-arm connecting frame 9, a connecting rod 10, and a drive cylinder 11; the connecting seat 1 is connected to the lifting system of the drilling rig, and the drive cylinder 11 is connected to the hydraulic system of the drilling rig.

[0025] The connecting seat 1 is provided with a first shaft cylinder 2 and a second shaft cylinder 3, the central axes of the first shaft cylinder 2 and the second shaft cylinder 3 are parallel; the first shaft cylinder 2 and the second shaft cylinder 3 are vertically arranged at both ends of the length direction of the connecting seat 1.

[0026] The first rotating seat 4 is rotatably mounted on the first shaft cylinder 2 and can rotate relative to the first shaft cylinder 2; the second rotating seat 5 is rotatably mounted on the second shaft cylinder 3 and can rotate relative to the second shaft cylinder 3.

[0027] The first rotating seat 4 is provided with a first clamping groove 6, and the second rotating seat 5 is provided with a second clamping groove 7; both the first clamping groove 6 and the second clamping groove 7 are used to accommodate and clamp the drill rod.

[0028] Both the first clamping groove 6 and the second clamping groove 7 are recessed grooves with their openings facing downwards, and both have an inverted U-shaped structure.

[0029] The double-headed connecting frame 8 is located on the first rotating seat 4, and the single-arm connecting frame 9 is located on the second rotating seat 5. The two ends of the connecting rod 10 are connected to the double-headed connecting frame 8 and the single-arm connecting frame 9 respectively; the connecting rod 10 is set horizontally.

[0030] The cylinder body of the drive cylinder 11 is connected to the double-headed connecting frame 8, and the piston rod is connected to the connecting rod 10; the drive cylinder 11 is specifically a single-piston rod hydraulic cylinder.

[0031] The first rotating seat 4 is rotatably connected to the first shaft cylinder 2 via a bearing; the second rotating seat 5 is rotatably connected to the second shaft cylinder 3 via a bearing; the rotation axis of the first rotating seat 4 is parallel to the rotation axis of the second rotating seat 5; the connecting rod 10 ultimately drives the first rotating seat 4 and the second rotating seat 5 to rotate in opposite directions.

[0032] The first clamping groove 6 is a through groove that extends through the side and end of the first rotating seat 4 to accommodate and clamp the drill rod; the second clamping groove 7 is a through groove that extends through the side and end of the second rotating seat 5 to accommodate and clamp the drill rod.

[0033] Both the first clamping groove 6 and the second clamping groove 7 are provided with an inward-retracting structure 20. The inward-retracting structure 20 is located near the end of the first rotating seat 4 and the second rotating seat 5. The inward-retracting structure 20 is located at the opening of the first clamping groove 6 and the second clamping groove 7. The gap between the inward-retracting structure 20 and the opening of the first clamping groove 6 and the second clamping groove 7 is smaller than the gap between the first clamping groove 6 and the second clamping groove 7, so as to prevent the drill rod from falling off after the first clamping groove 6 and the second clamping groove 7 clamp the drill rod together.

[0034] The double-headed connecting frame 8 is connected to the side of the first rotating seat 4. One end of the connecting rod 10 is hinged to the double-headed connecting frame 8. The cylinder body of the driving cylinder 11 is hinged to the double-headed connecting frame 8. The connecting rod 10 is straight. The central axis of the piston rod of the driving cylinder 11 is in the same plane as the connecting rod 10.

[0035] The single-arm connecting frame 9 is connected to the side of the second rotating seat 5, and the other end of the connecting rod 10 is hinged to the single-arm connecting frame 9.

[0036] The piston rod of the drive cylinder 11 is hinged to the connecting rod 10, and the hinge point is close to the middle of the connecting rod 10 to drive the connecting rod 10.

[0037] The working principle of this utility model is as follows:

[0038] When it is necessary to clamp the drill rod, the lifting mechanism of the drilling machine drives the connecting seat 1 to a position close to the drill rod and moves downward, so that the drill rod is embedded in the first clamping groove 6 on the first rotating seat 4 and the second clamping groove 7 on the second rotating seat 5.

[0039] Subsequently, the piston rod of the hydraulic cylinder 11 extends, driving the connecting rod 10 to move. The connecting rod 10 drives the first rotating seat 4 and the second rotating seat 5 to rotate through the double-headed connecting frame 8 and the single-arm connecting frame 9, respectively, so that the first clamping groove 6 and the second clamping groove 7 rotate relative to the drill rod. With the cooperation of the inward structure 20 at the bottom of the first clamping groove 6 and the second clamping groove 7, the drill rod is clamped, which can prevent the drill rod from falling off.

[0040] When it is necessary to release the drill rod, the piston rod of the drive cylinder 11 extends, driving the connecting rod 10 to move. The connecting rod 10 drives the first rotating seat 4 and the second rotating seat 5 to rotate in opposite directions through the double-headed connecting frame 8 and the single-arm connecting frame 9, respectively. This causes the first clamping groove 6 and the second clamping groove 7 to rotate in opposite directions relative to the drill rod. Finally, the opening of the inward structure 20 is aligned with the axis of the drill rod, and the first clamping groove 6 and the second clamping groove 7 clamp the drill rod with the rotational torque. At this time, the drill rod can fall out from the first clamping groove 6 and the second clamping groove 7, thus releasing the drill rod.

[0041] The above embodiments are used to further illustrate the present invention, but do not limit the present invention to these specific embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be understood as being within the protection scope of the present invention.

Claims

1. A single-cylinder alternating clamping rod mechanism, characterized in that: The system includes a connecting seat (1), a first rotating seat (4), a second rotating seat (5), a double-headed connecting frame (8), a single-arm connecting frame (9), a connecting rod (10), and a driving cylinder (11). The connecting seat (1) is provided with a first shaft cylinder (2) and a second shaft cylinder (3), and the central axes of the first shaft cylinder (2) and the second shaft cylinder (3) are parallel. The first rotating seat (4) is rotatably mounted on the first shaft cylinder (2), and the second rotating seat (5) is rotatably mounted on the second shaft cylinder (3). The first rotating seat (4) is provided with a first clamping groove (6), and the second rotating seat (5) is provided with a second clamping groove (7). The double-headed connecting frame (8) is located on the first rotating seat (4), and the single-arm connecting frame (9) is located on the second rotating seat (5). The two ends of the connecting rod (10) are respectively connected to the double-headed connecting frame (8) and the single-arm connecting frame (9). The cylinder body of the driving cylinder (11) is connected to the double-headed connecting frame (8), and the piston rod is connected to the connecting rod (10).

2. The single-cylinder alternating clamping rod mechanism according to claim 1, characterized in that: The first rotating seat (4) is rotatably connected to the first shaft cylinder (2) via a bearing; the second rotating seat (5) is rotatably connected to the second shaft cylinder (3) via a bearing; the rotation axis of the first rotating seat (4) is parallel to the rotation axis of the second rotating seat (5).

3. The single-cylinder alternating clamping rod mechanism according to claim 2, characterized in that: The first clamping groove (6) is a through groove and extends through the side and end of the first rotating seat (4); the second clamping groove (7) is a through groove and extends through the side and end of the second rotating seat (5).

4. A single-cylinder alternating clamping rod mechanism according to claim 3, characterized in that: The first clamping groove (6) and the second clamping groove (7) are each provided with an inward structure (20), which is located at the end near the first rotating seat (4) and the second rotating seat (5).

5. A single-cylinder alternating clamping rod mechanism according to any one of claims 1-4, characterized in that: The double-headed connecting frame (8) is connected to the side of the first rotating seat (4), one end of the connecting rod (10) is hinged to the double-headed connecting frame (8), and the cylinder body of the driving cylinder (11) is hinged to the double-headed connecting frame (8).

6. A single-cylinder alternating clamping rod mechanism according to claim 5, characterized in that: The single-arm connecting frame (9) is connected to the side of the second rotating seat (5), and the other end of the connecting rod (10) is hinged to the single-arm connecting frame (9).

7. A single-cylinder alternating clamping rod mechanism according to claim 5, characterized in that: The piston rod of the drive cylinder (11) is hinged to the connecting rod (10), and the hinge point is close to the middle of the connecting rod (10).

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