A non-contact rotary electric and signal transmission device for rotary geological guidance

Abstract

This utility model relates to the field of geological exploration equipment and power generation technology, and in particular to a non-contact rotary power and signal transmission device for rotary geological steering. The device includes a main body with connecting components fixedly connected to its side. By integrating the power generation mechanism coaxially with the geological steering sub, this utility model avoids the need for additional power generation devices installed outside the drill string or in other locations downhole. This simplifies the overall drilling system structure, reduces space constraints caused by additional components, facilitates operation in confined wellbore environments, does not disrupt the normal drilling process, and eliminates the need for large-scale modifications to existing drilling techniques and equipment. The device can seamlessly integrate with existing rotary geological steering systems, ensuring uninterrupted geological steering functionality. Precise control of the air gap between the stator coil and the permanent magnet rotor is required to ensure high magnetic coupling efficiency while avoiding excessive mechanical vibration and damage.

Description

Technical Field

[0001] This utility model relates to the field of geological exploration equipment and power generation technology, specifically a non-contact rotating power and signal transmission device for rotating geological guidance. Background Technology

[0002] In fields such as oil drilling, geothermal development, and mining exploration, geological steering drills require the transmission of electricity and signals during operation to monitor and control downhole conditions and to precisely guide the drill.

[0003] In traditional geological exploration, such as oil drilling, geothermal development, and mining, the energy supply for drilling operations and related equipment typically relies on external cables or batteries. However, this reliance presents several problems. First, the laying and maintenance of external cables are costly, especially in complex underground environments where cables are easily damaged, leading to power outages and affecting the continuity of drilling operations. Second, batteries have a limited lifespan and require regular replacement, which not only increases costs but also adds to operational complexity. Furthermore, existing cable and battery power supply methods cannot fully utilize the mechanical energy generated during drilling, resulting in energy waste. Therefore, a non-contact rotary power and signal transmission device for rotary geological guidance is needed to address these issues. Utility Model Content

[0004] In traditional geological exploration, such as oil drilling, geothermal development, and mining, the energy supply for drilling operations and related equipment typically relies on external cables or batteries. However, this reliance presents several problems. First, the laying and maintenance of external cables are costly, especially in complex underground environments where cables are easily damaged, leading to power outages and affecting the continuity of drilling operations. Second, batteries have a limited lifespan and require regular replacement, increasing both cost and operational complexity. Furthermore, existing cable and battery power supply methods cannot fully utilize the mechanical energy generated during drilling, resulting in energy waste. The purpose of this invention is to provide a non-contact rotary electric and signal transmission device for rotary geological guidance to address the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A non-contact rotary power and signal transmission device for rotary geological guidance includes a main body, on the side of which a connecting component is fixedly connected;

[0007] The main body includes a main rod, a nut is provided inside the main rod, a retaining ring is provided on the side of the nut, and an adapter is provided on the side of the retaining ring;

[0008] The connecting assembly includes a connecting rod, a connecting socket line is provided on the side of the connecting rod, a second outer nut is fixedly connected to the side of the connecting socket line, and a connector plug is provided on the side of the second outer nut.

[0009] As a preferred embodiment of this utility model, a plurality of retaining rings are provided, and two adapters are provided.

[0010] As a preferred embodiment of this utility model, the main rod is provided with an outer top ring inside, and the outer top ring is provided with a tolerance ring inside.

[0011] As a preferred embodiment of this utility model, a motor magnetic shaft assembly is installed inside the main rod, and a stator outer cylinder is installed inside the motor magnetic shaft assembly.

[0012] As a preferred embodiment of this utility model, the main rod is internally elastically connected with a spring, and a first O-ring and a second O-ring are installed on both sides of the spring.

[0013] As a preferred embodiment of this utility model, a first outer nut is installed inside the main rod, and a double-row bearing seat is installed on the side of the first outer nut.

[0014] As a preferred embodiment of this utility model, a ball bearing seat is installed inside the main rod, and a gasket is installed inside the ball bearing seat.

[0015] As a preferred embodiment of this utility model, a thin tube is provided inside the main rod, and an internal hexagonal flat-end set screw is installed at the outer end of the thin tube.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this invention, by coaxially integrating the power generation mechanism with the geological steering sub, the need for additional power generation devices installed outside the drill string or in other locations downhole is avoided. This simplifies the overall drilling system structure, reduces space constraints caused by additional components, facilitates operation in confined wellbore environments, does not disrupt the normal drilling process, and eliminates the need for large-scale modifications to existing drilling techniques and equipment. The device can seamlessly integrate with existing rotary geological steering systems, ensuring uninterrupted geological steering functionality.

[0018] 2. In this invention, the outer shell of the power generation mechanism is tightly fitted with the inner wall of the geological guide section. Precise machining ensures a strong and sealed connection between the two. The stator coil is fixed to the inner wall of the geological guide section, while the permanent magnet rotor is connected to the impeller rotating assembly. The axial position of the impeller is consistent with the coaxial position of the geological guide section, ensuring the coaxiality of the rotating components. The air gap design between the stator coil and the permanent magnet rotor is also crucial. The size of the air gap needs to be precisely controlled to ensure high magnetic coupling efficiency while avoiding excessive mechanical vibration and damage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the head of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the tail section of this utility model;

[0022] Figure 4 This is a schematic diagram of the tail section structure of this utility model.

[0023] In the diagram: 1. Main body; 101. Main rod; 102. Nut; 103. Retaining ring; 104. Adapter; 105. Outer top ring; 106. Tolerance ring; 107. Motor magnetic shaft assembly; 108. Stator outer cylinder; 109. Spring; 110. First O-ring; 111. Second O-ring; 112. First outer nut; 113. Double row bearing housing; 114. Ball bearing housing; 115. Washer; 116. Thin wire tube; 117. Hex socket set screw; 2. Connecting assembly; 201. Connecting rod; 202. Connecting socket wire; 203. Second outer nut; 204. Connector plug. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] For examples, please refer to Figures 1-4 This utility model provides a technical solution:

[0026] A non-contact rotating power and signal transmission device for rotating geological guidance includes a main body 1, with a connecting component 2 fixedly connected to the side of the main body 1.

[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the main body 1 includes a main rod 101, with a nut 102 inside the main rod 101. A retaining ring 103 is provided on the side of the nut 102, and an adapter 104 is provided on the side of the retaining ring 103. The connecting assembly 2 includes a connecting rod 201, with a connecting insertion line 202 on the side of the connecting rod 201. A second outer nut 203 is fixedly connected to the side of the connecting insertion line 202, and a connector plug 204 is provided on the side of the second outer nut 203. By integrating the power generation mechanism coaxially with the geological steering sub, the need for additional power generation devices installed outside the drill string or in other locations downhole is avoided. This makes the structure of the entire drilling system simpler, reduces space constraints that may arise from the installation of additional components, facilitates operation in narrow wellbore environments, does not affect the normal drilling process, and does not require large-scale modifications to existing drilling technology and equipment. The device can seamlessly connect to existing rotary geological steering systems, ensuring that the geological steering function is not interfered with.

[0028] In this embodiment, as Figure 1 , Figure 3 and Figure 4 As shown, several retaining rings 103 are provided, two adapters 104 are provided, an outer top ring 105 is provided inside the main rod 101, a tolerance ring 106 is provided inside the outer top ring 105, a motor magnetic shaft assembly 107 is installed inside the main rod 101, a stator outer cylinder 108 is installed inside the motor magnetic shaft assembly 107, a spring 109 is elastically connected inside the main rod 101, a first O-ring 110 and a second O-ring 111 are installed on both sides of the spring 109, and the main rod 101 is equipped with... A first outer nut 112 is provided, with a double-row bearing housing 113 mounted on its side. A ball bearing housing 114 is installed inside the main rod 101, with a washer 115 installed inside the ball bearing housing 114. A thin wire tube 116 is installed inside the main rod 101, with a hexagonal socket head cap set screw 117 mounted on its outer end. The generator housing and the inner wall of the geological guide section are tightly fitted together, and precise machining ensures a strong and sealed connection. The stator coil is fixed to the inner wall of the geological guide section, while the permanent magnet rotor is connected to the impeller rotating assembly. The axial position of the impeller is aligned with the coaxial position of the geological guide section, ensuring the coaxiality of the rotating components. The air gap design between the stator coil and the permanent magnet rotor is also crucial. The size of the air gap needs to be precisely controlled to ensure high magnetic coupling efficiency while avoiding excessive mechanical vibration and damage.

[0029] The working process of this utility model is as follows: When the drill bit rotates, the impeller rotation assembly is driven, causing the permanent magnet rotor to rotate and cut the magnetic field lines of the stator coil, generating an induced current. This induced current, after being processed by the energy harvesting circuit, provides a stable power supply to the geological guidance control system. Simultaneously, signal transmission is achieved through the connecting component 2 inside the main body 1, ensuring the normal operation of the geological guidance drill bit. This utility model features a simple structure, reasonable design, stable operation, and low cost, and can be widely applied in oil drilling, geothermal development, and mining exploration, possessing broad application prospects and good economic benefits.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-contact rotary power and signal transfer device for rotary geosteering comprising a main body (1), characterized in that: A connecting component (2) is fixedly connected to the side of the main body (1); The main body (1) includes a main rod (101), a nut (102) is provided inside the main rod (101), a retaining ring (103) is provided on the side of the nut (102), and an adapter (104) is provided on the side of the retaining ring (103). The connecting assembly (2) includes a connecting rod (201), a connecting socket line (202) is provided on the side of the connecting rod (201), a second outer nut (203) is fixedly connected to the side of the connecting socket line (202), and a connector plug (204) is provided on the side of the second outer nut (203).

2. A non-contact rotary power and signal transfer device for rotary geosteering according to claim 1, characterized in that, Several retaining rings (103) are provided, and two adapters (104) are provided.

3. A non-contact rotary power and signal transfer device for rotary geosteering according to claim 1, characterized in that, The main rod (101) is provided with an outer top ring (105) inside, and the outer top ring (105) is provided with a tolerance ring (106) inside.

4. The non-contact rotary electric and signal transmission device for rotary geological guidance according to claim 1, characterized in that, The main rod (101) is equipped with a motor magnetic shaft assembly (107), and the motor magnetic shaft assembly (107) is equipped with a stator outer cylinder (108).

5. A non-contact rotary power and signal transfer device for rotary geosteering according to claim 1, characterized in that, The main rod (101) is internally elastically connected to a spring (109), and a first O-ring (110) and a second O-ring (111) are installed on both sides of the spring (109).

6. A non-contact rotary power and signal transfer device for rotary geosteering according to claim 1, characterized in that, The main rod (101) is equipped with a first outer nut (112), and a double-row bearing seat (113) is installed on the side of the first outer nut (112).

7. A non-contact rotary power and signal transfer device for rotary geosteering according to claim 1, characterized in that, The main rod (101) is equipped with a ball bearing seat (114), and the ball bearing seat (114) is equipped with a gasket (115).

8. A non-contact rotary electric and signal transmission device for rotary geological guidance according to claim 1, characterized in that, The main rod (101) is provided with a thin tube (116) inside, and an internal hexagonal flat-end set screw (117) is installed at the outer end of the thin tube (116).

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