Drill rod guiding device of directional drilling machine

Abstract

The utility model discloses a guide device for a drill rod of a directional drilling machine, which relates to the technical field of guide of drill rods and comprises a guide device. The guiding device is composed of a shell, a rotating fluted disc and a fixing base, the fixing base is installed in the middle of the interior of the shell, a large bearing is installed in the rotating fluted disc and installed on the outer side of the fixing base, and connecting rods are rotatably installed on the periphery of the outer side of the rotating fluted disc. And one end of the connecting rod is rotationally installed on one side of the rotating plate, one end of the rotating plate is rotationally installed on the upper side of the fixing base, and the other end of the rotating plate extends into the hollow position of the shell and is rotationally provided with a limiting roller at the upper end. The drill rod limiting device is driven by the power mechanism to rotate when in use, the limiting rollers can be quickly adjusted, the drill rods can be limited in all directions when the multiple limiting rollers are used at the same time, and meanwhile the positions of the drill rods with different diameters can be limited by adjusting the positions of the limiting rollers.

Description

Technical Field

[0001] The utility model belongs to the field of drill rod guidance, in particular to a drill rod guidance device for a directional drilling rig. Background Art

[0002] Directional drilling is a pipeline construction technology in the engineering industry. It is generally used in the construction of oil, natural gas and some municipal pipelines. A large directional drilling rig is used to drill, expand and clean the hole before pulling the pipeline back. During the directional drilling process, a guide device is required to guide the drill rod.

[0003] Chinese patent number CN202122897675.9 discloses a drill rod guide, including a base, an upper cover, a roller and an inner roller sleeve; the base is U-shaped and has groove plates at both ends, and the upper cover is detachably connected to the base; a U-shaped groove is provided on the groove plate, the roller includes an end and a barrel, the end is movably connected to the U-shaped groove through a copper sleeve, and the number of the rollers is multiple and parallel to each other; an end face retaining ring is provided on the groove plate, the inner roller sleeve is located in the gap between the base and the upper cover, the inner roller sleeve is cylindrical and is movably connected to the roller; the end face retaining rings are located at both ends of the inner roller sleeve.

[0004] The utility model has a poor adjustable range when in use and cannot guide drill rods with different diameters when in use.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a drill rod guide device for a directional drilling rig.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] A drill rod guide device for a directional drilling rig, comprising a guide device; the guide device is composed of an outer shell, a rotating toothed disc and a fixed seat, the fixed seat is installed in the middle position inside the outer shell, the middle of the outer shell is hollow, a large bearing is installed inside the rotating toothed disc, the large bearing is installed at the outer side of the fixed seat, connecting rods are rotatably installed at the outer sides of the rotating toothed disc, one end of the connecting rod is rotatably installed at a side position of a rotating plate, one end of the rotating plate is rotatably installed at an upper side position of the fixed seat, the other end of the rotating plate extends into the hollow position of the outer shell, and a limiting roller is rotatably installed at the upper end, one side of the rotating toothed disc is meshed and connected with a small gear, the upper end shaft of the small gear is installed at the bottom end of a power mechanism, the power mechanism is installed at a side position of the outer shell, and a mounting plate is installed at the bottom end of the outer shell.

[0009] Optionally, the power mechanism consists of an electric motor and a transmission, the transmission is installed on one side of the housing, and the electric motor is installed at the upper end of the transmission.

[0010] Optionally, a reinforcing plate is provided inside the shell, the reinforcing plate is adhered to an inner position of the shell by adhesive, and the reinforcing plate is configured as a carbon fiber plate.

[0011] Optionally, the large bearing is configured as a damping bearing.

[0012] Optionally, a spiral blade is arranged on the outer side of the limiting roller, and the spiral blade is welded to the outer side of the limiting roller.

[0013] Optionally, a wear-resistant layer is provided on the outer side of the limiting roller, and the wear-resistant layer is configured as a chrome-plated layer.

[0014] Optionally, a truncated cone head is provided at the upper end of the limiting roller, and the truncated cone head and the limiting roller are integrally provided.

[0015] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0016] 1. When in use, the guide device is driven to rotate by a power mechanism, and the limiting roller can be adjusted quickly. When multiple limiting rollers are used at the same time, the drill rod can be restricted in all directions. At the same time, by adjusting the position of the limiting roller, the position of drill rods of different diameters can be restricted.

[0017] 2. When the power mechanism is in use, the motor is turned on by the switch, and the motor will drive the pinion to rotate through the transmission, providing power for the rotation of the pinion.

[0018] 3. The setting of the spiral blade can push the drill rod downward during the rolling and guiding process of the limiting roller, reduce the friction between the drill rod and the limiting roller, and reduce the wear of the limiting roller during use.

[0019] 4. The setting of the truncated cone head is used to increase the diameter of the upper end of the limiting roller, so as to facilitate the rapid introduction of the drill rod into the position between the limiting rollers and facilitate the installation of the drill rod.

[0020] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the connecting rod structure of an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of a limiting roller in one embodiment of the utility model;

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Guide device; 2. Power mechanism; 3. Transmission; 4. Motor; 5. Limit roller; 6. Pinion; 7. Rotating gear plate; 8. Rotating plate; 9. Fixed seat; 10. Housing; 11. Connecting rod; 12. Large bearing; 13. Spiral blade; 14. Cone head; 15. Wear-resistant layer; 16. Mounting plate; 17. Reinforcement plate.

[0028] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] The utility model will now be further described in detail with reference to the accompanying drawings.

[0030] See also Figure 1-4 As shown, in this embodiment, a directional drilling rig drill rod guide device is provided, including a guide device 1; the guide device 1 is composed of a shell 10, a rotating toothed disc 7 and a fixed seat 9, the fixed seat 9 is installed in the middle position inside the shell 10, and the middle of the shell 10 is hollow. A large bearing 12 is installed inside the rotating toothed disc 7, and the large bearing 12 is installed at the outer position of the fixed seat 9. A connecting rod 11 is rotatably installed at the outer surrounding positions of the rotating toothed disc 7. One end of the connecting rod 11 is rotatably installed at a side position of a rotating plate 8, and one end of the rotating plate 8 is rotatably installed at the upper side position of the fixed seat 9. The other end of the rotating plate 8 extends into the hollow position of the shell 10 and a limiting roller 5 is rotatably installed at the upper end. A pinion 6 is meshed and connected with one side of the rotating toothed disc 7, and the upper end shaft of the pinion 6 is installed at the bottom end of the power mechanism 2. The power mechanism 2 is installed at a side position of the shell 10, and a mounting plate 16 is installed at the bottom end of the shell 10.

[0031] The application of one aspect of this embodiment is: when in use, the guide device 1 is installed at a specified position through the mounting plate 16. When the guide device 1 is in use, the pinion 6 is driven to rotate by the power mechanism 2. The pinion 6 will drive the rotating toothed disc 7 to rotate during the rotation. During the rotation of the rotating toothed disc 7, the rotating plate 8 is driven to rotate by the connecting rod 11. The rotating plate 8 will drive the limiting roller 5 to move during the rotation. The position of the drill rod can be limited by the limiting roller 5. When in use, the utility model is driven to rotate by the power mechanism 2, and the limiting roller 5 can be quickly adjusted. The simultaneous use of multiple limiting rollers 5 can limit the drill rod in all directions. At the same time, by adjusting the position of the limiting roller 5, the position of drill rods with different diameters can be limited.

[0032] In this embodiment, the power mechanism 2 is composed of an electric motor 4 and a transmission 3. The transmission 3 is installed on one side of the housing 10, and the motor 4 is installed on the upper end of the transmission 3. When the power mechanism 2 is in use, the motor 4 is turned on by a switch, and the motor 4 will drive the pinion 6 to rotate through the transmission 3, providing power for the rotation of the pinion 6.

[0033] In this embodiment, a reinforcing plate 17 is provided inside the outer shell 10. The reinforcing plate 17 is adhered to the inner position of the outer shell 10 by adhesive. The reinforcing plate 17 is configured as a carbon fiber plate. The carbon fiber plate used for the reinforcing plate 17 has strong flexibility and can prevent the outer shell 10 from being deformed and damaged due to impact during use.

[0034] In this embodiment, the large bearing 12 is configured as a damping bearing. The damping bearing used by the large bearing 12 can increase the resistance between the rotating gear plate 7 and the fixed seat 9, thereby increasing the stability of the limiting roller 5 when in use.

[0035] In this embodiment, a spiral blade 13 is arranged on the outer side of the limiting roller 5, and the spiral blade 13 is welded on the outer side of the limiting roller 5. The setting of the spiral blade 13 can push the drill rod downward during the rolling and guiding process of the limiting roller 5, thereby reducing the friction between the drill rod and the limiting roller 5 and reducing the wear of the limiting roller 5 during use.

[0036] In this embodiment, a wear-resistant layer 15 is arranged on the outer side of the limiting roller 5, and the wear-resistant layer 15 is arranged as a chrome-plated layer. The chrome-plated layer used in the wear-resistant layer 15 has strong corrosion resistance, which can reduce the wear of the limiting roller 5 during use and extend the service life of the limiting roller 5.

[0037] In this embodiment, a truncated cone head 14 is provided at the upper end of the limiting roller 5. The truncated cone head 14 and the limiting roller 5 are integrated. The setting of the truncated cone head 14 is used to increase the diameter of the upper end of the limiting roller 5, thereby facilitating the rapid introduction of the drill rod into the position between the limiting rollers 5 and facilitating the installation of the drill rod.

[0038] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A directional drilling rig drill rod guide device, characterized in that: The invention comprises a guide device (1); the guide device (1) is composed of a shell (10), a rotating toothed disc (7) and a fixed seat (9); the fixed seat (9) is installed in the middle of the shell (10); the shell (10) is hollow in the middle; a large bearing (12) is installed in the rotating toothed disc (7); the large bearing (12) is installed outside the fixed seat (9); a connecting rod (11) is rotatably installed at the outer peripheral position of the rotating toothed disc (7); one end of the connecting rod (11) is rotatably installed The rotating plate (8) is mounted on one side of the rotating plate (8); one end of the rotating plate (8) is rotatably mounted on the upper side of the fixed seat (9); the other end of the rotating plate (8) extends into the hollow position of the housing (10) and a limiting roller (5) is rotatably mounted on the upper end; one side of the rotating toothed disc (7) is meshedly connected with a pinion gear (6); the upper end shaft of the pinion gear (6) is mounted on the bottom end of the power mechanism (2); the power mechanism (2) is mounted on one side of the housing (10); and a mounting plate (16) is mounted on the bottom end of the housing (10).

2. A directional drilling rig drill rod guiding device according to claim 1, characterized in that: The power mechanism (2) is composed of an electric motor (4) and a transmission (3); the transmission (3) is mounted on one side of the housing (10), and the electric motor (4) is mounted on the upper end of the transmission (3).

3. A directional drilling rig drill rod guiding device according to claim 1, characterized in that: A reinforcing plate (17) is arranged inside the outer shell (10); the reinforcing plate (17) is adhered to an inner position of the outer shell (10) by means of adhesive; the reinforcing plate (17) is arranged as a carbon fiber plate.

4. A directional drilling rig drill rod guiding device according to claim 1, characterized in that: The large bearing (12) is configured as a damping bearing.

5. A directional drilling rig drill rod guiding device according to claim 1, characterized in that: The outer side of the limiting roller (5) is provided with a spiral blade (13), and the spiral blade (13) is welded to the outer side of the limiting roller (5).

6. A directional drilling rig drill rod guiding device according to claim 1, characterized in that: The outer side of the limiting roller (5) is provided with a wear-resistant layer (15), and the wear-resistant layer (15) is configured as a chrome-plated layer.

7. A directional drilling rig drill rod guiding device according to claim 1, characterized in that: A truncated cone head (14) is provided at the upper end of the limiting roller (5), and the truncated cone head (14) and the limiting roller (5) are integrally arranged.

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