A cap-type conductive slip ring installation structure for a directional drilling radar

Abstract

The present invention relates to the field of borehole radar, and particularly to a cap-type conductive slip ring installation structure for a directional borehole radar. The cap-type conductive slip ring installation structure includes a slip ring installation sleeve, a bearing, a mounting plate, and a cap-type conductive slip ring; the slip ring installation sleeve is provided with a slip ring accommodation hole and a bearing accommodation hole, the outer stator of the cap-type conductive slip ring is fixed in the slip ring accommodation hole, and the outer ring of the bearing is installed on the bearing accommodation hole; one end of the mounting plate is provided with a connecting column, the inside of the connecting column is a through hole, the connecting column passes through and is fixed on the inner ring of the bearing, and the inner rotor of the cap-type conductive slip ring is fixedly accommodated in the through hole inside it. Compared with the traditional installation method of the cap-type conductive slip ring, by introducing a bearing at the installation location, the structure obtained by the present invention can, while ensuring the normal operation of the cap-type conductive slip ring, also resist the bending moment caused by external forces during radar assembly, protect the fragile inner rotor in the slip ring, and significantly improve the connection strength at the installation location of the cap-type conductive slip ring.

Description

Technical Field

[0001] The present invention relates to the field of borehole radar, and particularly to a cap - type conductive slip ring installation structure for a directional borehole radar. Background Art

[0002] In the field of geological exploration, directional borehole radar plays a crucial role. It can accurately detect complex underground geology, providing key data support for numerous engineering projects, such as path detection before laying urban underground pipelines and geological hazard investigation during mine exploitation.

[0003] The normal operation of a directional borehole radar depends on the coordinated cooperation of various internal components. Among them, the conductive slip ring is a key component to ensure stable signal and power transmission and prevent wire entanglement. The classic cap - type conductive slip ring mainly includes an inner rotor and an outer stator. The inner rotor can rotate relative to the outer stator and always maintain electrical connection. In a directional borehole radar, the inner rotor and outer stator of the cap - type conductive slip ring are respectively fixed on two components that need to rotate relative to each other.

[0004] At present, although the conventional installation method can ensure the normal operation of the cap - type conductive slip ring, it has obvious defects. Since the outer shells of both the inner rotor and outer stator of the slip ring are made of plastic material and the diameter of the inner rotor is small, after the slip ring connects the two components for rotation, the bending strength at the connection is very low. During the assembly process of the internal components of the radar, the connection of the slip ring is extremely prone to damage, seriously affecting the assembly efficiency and equipment reliability of the borehole radar, and increasing the development cost and use risk of the equipment.

[0005] Therefore, there is an urgent need for a new technical solution to improve the connection strength at the installation of the cap - type conductive slip ring inside the borehole radar. Summary of the Invention

[0006] To solve the above problems, the present invention provides a cap - type conductive slip ring installation structure for a directional borehole radar. By innovatively introducing a key component, the bearing, the installation method of the cap - type conductive slip ring is optimized and improved to significantly enhance the bending strength at the installation of the cap - type conductive slip ring, thereby improving the assembly and debugging efficiency of the radar.

[0007] A cap - type conductive slip ring installation structure for a directional borehole radar includes: a slip ring installation sleeve (1), a bearing (2), a carrier plate (3), and a cap - type conductive slip ring (4);

[0008] The slip ring installation sleeve (1) is internally provided with a slip ring accommodation hole (11) and also has a bearing accommodation hole (12) at its end;

[0009] The bearing (2) is a bi - directional bearing, including a bearing outer ring (21) and a bearing inner ring (22);

[0010] The carrier board (3) is a component for mounting the radar acquisition and control board (31), and one end thereof is provided with a connecting column (32); a through hole (321) is provided inside the connecting column (32);

[0011] The cap-type conductive slip ring (4) includes an outer stator (41) and an inner rotor (42), and the inner rotor (42) can rotate relative to the outer stator (41) and always maintain electrical connection;

[0012] The slip ring mounting sleeve (1) is fixedly accommodated inside the directional drilling radar outer tube (5); the outer stator (41) of the cap-type conductive slip ring (4) is fixedly accommodated on the slip ring accommodation hole (11) inside the slip ring mounting sleeve (1); the outer ring (21) of the bearing is fixedly mounted on the bearing accommodation hole (12); the connecting column (32) passes through the inner ring (22) of the bearing, and the inner rotor (42) of the cap-type conductive slip ring (4) is fixedly accommodated in the through hole (321) inside it;

[0013] The end surface of the slip ring accommodation hole (11) is evenly distributed with first screw holes (13), and the circular flange of the outer stator (41) is correspondingly evenly distributed with slip ring mounting holes (411); screws (6) pass through the slip ring mounting holes (411) and are connected in the first screw holes (13) to fix the outer stator (41) of the cap-type conductive slip ring (4) inside the slip ring mounting sleeve (1);

[0014] The connecting column (32) is circumferentially evenly distributed with second screw holes (322), and set screws (7) are screwed into the second screw holes (322) to fix the inner rotor (42) and the connecting column (32); the slip ring mounting sleeve (1) is circumferentially provided with a square hole (14); when assembling the internal components of the radar, a screwdriver can pass through the square hole (14) to complete the installation of the set screws (7);

[0015] When the directional drilling radar works, the carrier board (3) rotates continuously inside the directional drilling radar, and the collected geological signals are transmitted to the inner rotor (42) through wires, and then transmitted to the radar interface through the cap-type conductive slip ring (4).

[0016] Furthermore, the outer ring (21) of the bearing and the bearing accommodation hole (12) are in interference fit, and the connecting column (32) and the inner ring (22) of the bearing are in transition fit.

[0017] The beneficial effects of the present invention mainly lie in that by introducing this key component of the bearing, the connection strength at the installation position of the cap-type conductive slip ring inside the drilling radar is significantly improved. In the present invention, the bearing (2) between the carrier plate (3) and the slip ring mounting sleeve (1) can, while ensuring the normal operation of the cap-type conductive slip ring (4), also resist the bending moment caused by external forces during radar assembly, protect the fragile inner rotor (42) in the cap-type conductive slip ring (4), and significantly improve the connection strength at the installation position of the cap-type conductive slip ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a cross-sectional view of the cap-type conductive slip ring installation structure in the embodiment of the present invention;

[0020] Figure 2 It is an axonometric view of the cap-type conductive slip ring installation structure in the embodiment of the present invention;

[0021] Figure 3 It is an exploded view of the cap-type conductive slip ring installation structure in the embodiment of the present invention;

[0022] Figure 4 It is a schematic structural diagram of the slip ring mounting sleeve in the embodiment of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the connecting column on the carrier plate in the embodiment of the present invention;

[0024] Figure 6 It is a schematic structural diagram of the cap-type conductive slip ring in the embodiment of the present invention.

[0025] In the figure: 1 - slip ring mounting sleeve; 11 - slip ring accommodation hole; 12 - bearing accommodation hole; 13 - first screw hole; 14 - square hole; 2 - bearing; 21 - bearing outer ring; 22 - bearing inner ring; 3 - carrier plate; 31 - radar acquisition and control board; 32 - connecting column; 321 - through hole; 322 - second screw hole; 4 - cap-type conductive slip ring; 41 - outer stator; 411 - slip ring mounting hole; 42 - inner rotor; 5 - outer tube; 6 - screw; 7 - set screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. It should be noted that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] As Figure 1 shown, an embodiment of the present invention provides a cap-type conductive slip ring mounting structure for a directional drilling radar, which includes a slip ring mounting sleeve 1, a bearing 2, a mounting plate 3, and a cap-type conductive slip ring 4. While ensuring the normal operation of the cap-type conductive slip ring, this mounting structure can also resist the bending moment caused by external forces during radar assembly, significantly improving the connection strength at the slip ring mounting location.

[0028] As Figure 2 shown, the slip ring mounting sleeve 1 provided in this embodiment is internally provided with a slip ring accommodation hole 11 for accommodating the outer stator 41 of the cap-type conductive slip ring 4; the end is provided with a bearing accommodation hole 12 for accommodating the outer ring 21 of the bearing 2; three first screw holes 13 for fixing the cap-type conductive slip ring 4 are evenly distributed at the internal step; and a square hole 14 is also provided circumferentially for the installation of a set screw 7.

[0029] As Figure 3 shown, the mounting plate 3 provided in this embodiment is a component for mounting a radar acquisition and control board 31; one end of the mounting plate 3 is provided with a connecting column 32 for connecting the inner ring 22 of the bearing; a through hole 321 is provided inside the connecting column 32 for accommodating and fixing the inner rotor 42 of the cap-type conductive slip ring 4; and three second screw holes 322 are evenly distributed circumferentially on the connecting column 32 for fixing the connecting column 32 and the inner rotor 42.

[0030] As Figure 4 shown, the cap-type conductive slip ring 4 provided in this embodiment includes an outer rotor 41 and an inner rotor 42; the inner rotor 42 can rotate relative to the outer stator 41 and always maintain electrical connection; and slip ring mounting holes 411 are evenly distributed on the circular flange of the outer stator 41 for fixing the outer stator 41 and the slip ring mounting sleeve 1.

[0031] As Figure 1 , Figure 5 and Figure 6As shown, the slip ring mounting sleeve 1 is fixedly accommodated inside the outer tube 5 of the directional drilling radar; the outer stator 41 of the cap-type conductive slip ring 4 is fixedly mounted on the slip ring accommodation hole 11 inside the slip ring mounting sleeve 1 through screws 6; the outer ring 21 of the bearing 2 is press-fitted on the bearing accommodation hole 12; the connecting column 32 is in transitional fit inside the inner ring 22 of the bearing, and the inner rotor 42 of the cap-type conductive slip ring 4 is accommodated in its internal through hole 321; the set screw 7 is screwed into the second screw hole 322 at the end of the connecting column 32 to fix the inner rotor 42 and the connecting column 32.

[0032] When the directional drilling radar is working, the carrying board 3 rotates continuously inside the directional drilling radar, and the geological signals collected by the acquisition and control board 31 are transmitted to the inner rotor 42 through wires, and then transmitted to the radar interface through the cap-type conductive slip ring 4.

[0033] The above detailed description is a specific description of the feasible embodiments of the present invention. This embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or change made without departing from the present invention shall be included in the patent scope of this case.

Claims

1. A cap - type conductive slip - ring installation structure for a directional drilling radar, characterized in that, It includes a slip ring mounting sleeve (1), a bearing (2), a mounting plate (3), and a cap type conductive slip ring (4); The slip ring mounting sleeve (1) is internally provided with a slip ring accommodation hole (11), and its end is also provided with a bearing accommodation hole (12); The bearing (2) is a two-way bearing, including a bearing outer ring (21) and a bearing inner ring (22); The mounting plate (3) is a component for mounting a radar acquisition and control board (31), and one end thereof is provided with a connecting column (32); a through hole (321) is provided inside the connecting column (32); The cap type conductive slip ring (4) includes an outer stator (41) and an inner rotor (42), and the inner rotor (42) can rotate relative to the outer stator (41) and always maintain electrical connection; The slip ring mounting sleeve (1) is fixedly accommodated inside the outer tube (5) of the directional drilling radar; the outer stator (41) of the cap type conductive slip ring (4) is fixedly accommodated on the slip ring accommodation hole (11) inside the slip ring mounting sleeve (1); the bearing outer ring (21) is fixedly installed on the bearing accommodation hole (12); the connecting column (32) passes through the bearing inner ring (22), and the inner rotor (42) of the cap type conductive slip ring (4) is fixedly accommodated into the through hole (321) inside it; First screw holes (13) are evenly distributed on the end face of the slip ring accommodation hole (11), and slip ring mounting holes (411) are correspondingly and evenly distributed on the circular flange of the outer stator (41); screws (6) pass through the slip ring mounting holes (411) and are connected in the first screw holes (13) to fix the outer stator (41) of the cap type conductive slip ring (4) inside the slip ring mounting sleeve (1); Second screw holes (322) are evenly distributed circumferentially on the connecting column (32), and set screws (7) are screwed into the second screw holes (322) to fix the inner rotor (42) and the connecting column (32); a square hole (14) is provided circumferentially on the slip ring mounting sleeve (1); when assembling the internal components of the radar, a screwdriver can pass through the square hole (14) to complete the installation of the set screw (7); When the directional drilling radar is working, the mounting plate (3) rotates continuously inside the directional drilling radar, and the collected geological signals are transmitted to the inner rotor (42) through a wire, and then transmitted to the radar interface through the cap type conductive slip ring (4).

2. The cap-type conductive slip ring mounting structure for a directional drilling radar according to claim 1, wherein, The bearing outer ring (21) and the bearing accommodation hole (12) are in interference fit, and the connecting column (32) and the bearing inner ring (22) are in transition fit.

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