Signaling water braid and method of use

Abstract

The application relates to a signal-transmissible water braid and a use method, and belongs to the technical field of coal mine drilling machines. The structure is characterized in that a cable connecting cavity is arranged at the end of a water braid main shaft away from a drill rod; one end of the cable connecting cavity is in communication with a cable core rod, and the other end is in communication with a rotating shaft; the rotating shaft is provided with a through hole for the cable to pass through in the axial direction, one end of the rotating shaft is fixedly connected with the water braid main shaft, the other end penetrates through an end cover and is fixedly connected with a rotor of a signal switching slip ring, and a stator of the signal switching slip ring is fixed on the end cover; the rotor of the signal switching slip ring is rotationally connected with the stator of the signal switching slip ring and is in communication with each other; the cable connecting cavity is provided with a cable joint, one end of the cable joint is connected with the cable core rod, and the other end is in communication with the rotor of the signal switching slip ring through a cable. The technical problem that the water braid device must stop the work of the drilling machine and then the measurement is carried out when the water braid device transmits the measurement signal is solved.

Description

Technical Field

[0001] This invention belongs to the field of coal mine drilling rig technology, specifically relating to a water brace capable of transmitting signals and its usage method. Background Technology

[0002] A water braid is a rotating high-pressure water supply device for hydraulic drilling rigs, used for cleaning, slag removal, and cooling of the drill bit in the borehole. Existing water braids generally consist of a water braid spindle, an inlet assembly, and corresponding seals. One end of the hollow channel of the water braid spindle is connected to the inlet, and the other end is connected to the drill rod. High-pressure cleaning water enters the inlet assembly through a connector and then into the water braid spindle, where the spindle spindle rotates at high speed relative to the inlet. To allow for real-time measurement of borehole bottom information, the water braid contains space for transmitting general electrical signals. However, traditional water braid devices require the drilling rig to be stopped during measurement to prevent the measuring cable from becoming entangled due to the rotation of the power head. Then, the electrical signal is connected between the connector and the water braid for measurement. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a water braid that can transmit signals and a method of using it, so as to solve the technical problem that the drilling machine must be stopped before measurement can be performed when the water braid device transmits measurement signals; and to realize that signal output and detection can still be completed during the rotation of the power head.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A signal-transmitting water braid includes a water braid spindle, an inlet assembly sleeved on the water braid spindle, a bearing housing sleeved on the water braid spindle, an end cap detachably connected to the bearing housing, and a rear cover detachably connected to the end cap; a bearing is provided between the bearing housing and the water braid spindle, and the bearing housing is fixedly connected to the inlet assembly; one end of the water braid spindle connected to the drill rod is provided with a cable core rod coaxial with the water braid spindle spindle, a protective core tube sleeved outside the cable core rod, and a liquid flow cavity communicating with the inlet assembly;

[0006] It also includes a signal transfer slip ring, which includes a rotor and a stator of the signal transfer slip ring, wherein the rotor and the stator of the signal transfer slip ring are rotatably connected and interconnected.

[0007] The end of the water braid spindle away from the drill rod connection is provided with a cable connection cavity; one end of the cable connection cavity is connected to the cable core rod, and the other end is connected to the rotating shaft; the rotating shaft is provided with a through hole for the cable to pass through along the axial direction; one end of the rotating shaft is fixedly connected to the water braid spindle, and the other end passes through the end cover and is fixedly connected to the rotor of the signal transfer slip ring; the stator of the signal transfer slip ring is fixed on the end cover.

[0008] The cable connection cavity is provided with a cable connector. One end of the cable connector is connected to the cable core rod, and the other end is connected to the rotor of the signal transfer slip ring through a cable.

[0009] Furthermore, the rear cover is provided with a cable outlet.

[0010] Furthermore, a spring connector is provided at one end of the core tube that is connected to the drill rod, and the spring connector is connected to the cable core rod.

[0011] Furthermore, a fixing sleeve is fitted onto the end of the core protector tube that is connected to the drill rod, and a retaining ring is provided on the fixing sleeve for fixing the core protector tube.

[0012] Furthermore, both the cable core and the spring connector are metal components.

[0013] Furthermore, a main shaft back baffle is provided between the water braid main shaft and the end cover.

[0014] Furthermore, a Gladius ring for sealing is provided between the inlet assembly and the water braid spindle.

[0015] Furthermore, a water braid connecting plate is fixedly connected to the main shaft of the water braid.

[0016] A method for using a signal-transmitting water braid involves connecting the aforementioned signal-transmitting water braid to the cable of the drill rod, ensuring the signal input end is in a conductive state with the cable core, connecting the cable connector in the cable connection cavity, connecting the cable core to the signal transfer slip ring, and connecting the signal transfer slip ring to external monitoring equipment; the drill rod rotates to start working, causing the water braid spindle, rotating shaft, and the rotor of the signal transfer slip ring to rotate together, and the electrical signal transmits information to the external monitoring equipment in real time.

[0017] The beneficial effects of this invention are as follows:

[0018] By connecting the rotor of the entire water braid spindle, rotating shaft, and transfer slip ring into a rotating component, which rotates together with the drill rod, the relative rotation of the rotor and stator of the signal transfer slip ring solves the technical defect of traditional water braids that require the drilling machine to stop for bottom hole signal measurement. This ensures that the signal transmission of the entire cable is not affected by its rotational relationship, and enables signal output and detection to be completed even during the rotation of the power head.

[0019] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0020] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of a water braid that can transmit signals.

[0022] Reference numerals: 1. Water braid spindle; 2. Inlet assembly; 3. Bearing seat; 4. End cover; 5. Rear cover; 6. Cable core rod; 7. Core tube; 8. Liquid flow channel; 9. Cable connection cavity; 10. Cable connector; 11. Bearing; 12. Spindle rear baffle; 13. Rotating shaft; 14. Stator; 15. Rotor; 16. Cable outlet; 17. Water braid connecting plate; 18. Fixing sleeve; 19. Support ring; 20. Retaining ring; 21. Spring connecting seat; 22. Rotor cable; 23. Stator cable; 24. Sealing ring. Detailed Implementation

[0023] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0024] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0025] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0026] Please see Figure 1A signal-transmitting water braid includes a water braid spindle 1, an inlet assembly 2 rotatably connected to the water braid spindle 1, a bearing seat 3 sleeved on the water braid spindle 1, an end cover 4 detachably connected to the bearing seat 3, and a rear cover 5 detachably connected to the end cover 4; the bearing seat 3 and the water braid spindle 1 are provided with a bearing 11; the bearing seat 3 is fixedly connected to the inlet assembly 2; the water braid spindle 1 can rotate relative to the inlet assembly 2, the bearing seat 3, and the end cover 4; a water braid connecting plate 17 is fixedly connected to the water braid spindle 1, the water braid connecting plate 17 being an encoder disc capable of measuring the drilling speed of the power head.

[0027] In this embodiment, the bearing housing 3 is fixed to the inlet assembly 2 by fastening bolts, and the end cover 4 is fixed to the bearing housing 3 by fastening bolts. The rear cover 5 is fixed to the end cover 4, which allows for easy disassembly of the rear cover 5 and the end cover 4, facilitating equipment maintenance. A sealing ring 24 is provided between the inlet assembly 2 and the water braid spindle 1. The sealing ring 24 is a shaft-mounted Glyd ring, which ensures the sealing between the inlet assembly 2 and the water braid spindle 1, preventing liquid leakage and not significantly affecting the mutual rotation between the two.

[0028] The end of the water braid spindle 1 connected to the drill rod is coaxially equipped with a cable core rod 6, a protective tube 7 sleeved outside the cable core rod 6, and a liquid flow channel 8 communicating with the water inlet assembly 2. A fixing sleeve 18 is fitted onto the end of the protective tube 7 near the drill rod. The fixing sleeve 18 has a retaining ring 20 and a support ring 19 for fixing the protective tube 7. The support ring 19 and the retaining ring 20 are fitted together within the liquid flow channel 8, and both the support ring 19 and the retaining ring 20 have holes for liquid to pass through. The protective tube 7 sleeved outside the cable core rod 6 completely isolates the electrical signal transmission channel from the liquid flow channel 8, ensuring that liquid flow and signal transmission do not interfere with each other, making signal transmission more reliable.

[0029] The end of the core tube 7 connected to the drill rod is equipped with a spring connector 21, which is connected to the cable core rod 6. Both the cable core rod 6 and the spring connector 21 are metal parts, enabling the transmission of electrical signals. The spring connector can be docked with the connecting device on the drill rod to achieve signal transmission.

[0030] The end of the water braid spindle 1 furthest from the drill rod connection is provided with a cable connection cavity 9; one end of the cable connection cavity 9 is connected to the cable core rod 6, and the other end is connected to the rotating shaft 13. The rotating shaft 13 is connected to a signal transfer slip ring, which includes a rotor 15 and a stator 14. The rotor 15 and the stator 14 are rotatably connected and interconnected. The rotating shaft 13 has a through hole along its axial direction for the cable to pass through. 3 One end is fixedly connected to the water braid main shaft 1, and the other end passes through the end cover 4 and the main shaft back baffle 12 between the water braid main shaft 1 and the end cover 4 and is fixedly connected to the rotor 15 of the signal transfer slip ring by bolts. The stator 14 of the signal transfer slip ring is fixed on the end cover 4. The rotor 15 of the signal transfer slip ring and the stator 14 of the signal transfer slip ring are rotatably connected and communicate with each other. The rotor 15 of the signal transfer slip ring and the stator 14 of the signal transfer slip ring can rotate relative to each other and can also transmit electrical signals.

[0031] The cable connection cavity 9 is provided with a cable connector 10. One end of the cable connector 10 is connected to the cable core rod 6, and the other end is connected to the rotor 15 of the signal transfer slip ring through a cable to form a rotor cable 22. The stator 14 of the signal transfer slip ring is connected to the stator cable 23 and is connected to the external detection equipment through the cable outlet 16 provided on the rear cover 5.

[0032] The entire water braid spindle 1, water braid connecting plate 17, rotating shaft 13, and rotor 15 of the transfer slip ring are all rotating parts that can rotate together with the drill pipe. Through the mutual rotation of rotor 15 and stator 14 of the signal transfer slip ring, the signal transmission of the entire cable is not affected by the rotation relationship of the power head, and the signal output can still be completed during the drilling process.

[0033] A method for using a signal-transmitting water braid involves connecting the signal-transmitting water braid described above to a drill rod, ensuring that the signal input end is in a conductive state with the cable core rod 6, connecting the cable connector 10 in the cable connection cavity 9 to the rotor cable 22, connecting the cable core rod 6 to the signal transfer slip ring, and connecting the signal transfer slip ring to an external monitoring device.

[0034] High-pressure liquid enters the water braid spindle 1 through port a of inlet assembly 2 and then through port b of inlet assembly 2. The liquid flows through the liquid flow channel 8 and the support ring 19 and retaining ring 20 located on the liquid flow channel 8, eventually entering the drill pipe. At this point, the drill pipe begins to rotate, driving the water braid spindle 1, the rotating shaft 13, and the rotor 15 of the signal transfer slip ring to rotate together. Electrical signals are transmitted through the signal input terminal and the drill pipe to the connected spring connector 21, and then through the cable core 6, the cable connector 10 in the cable connection cavity 9, the rotor cable 22, the rotor 15 of the signal transfer slip ring, the stator 14 of the signal transfer slip ring, and finally through the stator cable 23 connected to the stator 14 to external monitoring equipment, thus realizing signal output and detection during the drilling process.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A water braid capable of transmitting signals, characterized in that: The system includes a water braid spindle, an inlet assembly mounted on the water braid spindle, a bearing housing mounted on the water braid spindle, an end cap detachably connected to the bearing housing, and a rear cover detachably connected to the end cap. A bearing is provided between the bearing housing and the water braid spindle, and the bearing housing is fixedly connected to the inlet assembly. One end of the water braid spindle connected to the drill rod is provided with a cable core rod coaxial with the water braid spindle, a protective tube mounted outside the cable core rod, and a liquid flow cavity communicating with the inlet assembly. It also includes a signal transfer slip ring, which includes a rotor and a stator of the signal transfer slip ring, wherein the rotor and the stator of the signal transfer slip ring are rotatably connected and interconnected. The end of the water braid spindle away from the drill rod connection is provided with a cable connection cavity; one end of the cable connection cavity is connected to the cable core rod, and the other end is connected to the rotating shaft; the rotating shaft is provided with a through hole for the cable to pass through along the axial direction; one end of the rotating shaft is fixedly connected to the water braid spindle, and the other end passes through the end cover and is fixedly connected to the rotor of the signal transfer slip ring; the stator of the signal transfer slip ring is fixed on the end cover. The cable connection cavity is provided with a cable connector. One end of the cable connector is connected to the cable core rod, and the other end is connected to the rotor of the signal transfer slip ring through a cable. The cable connector and the rotor form a rotor cable. The stator of the signal transfer slip ring is connected to the stator cable, and the stator cable is connected to the external testing equipment through the cable outlet set on the rear cover; The end of the core tube connected to the drill rod is provided with a spring connecting seat, which is connected to the cable core rod. The end of the core protector tube connected to the drill rod is fitted with a fixing sleeve, and the fixing sleeve is provided with a retaining ring for fixing the core protector tube; A main shaft rear baffle is provided between the water braid main shaft and the end cover; A Glyd ring for sealing is provided between the inlet assembly and the water braid spindle; A water braid connecting plate is fixedly connected to the main shaft of the water braid.

2. The signal-transmitting water braid according to claim 1, characterized in that: Both the cable core and the spring connector are metal parts.

3. A method for using a water braid capable of transmitting signals, characterized in that: Connect the signal-transmitting water braid as described in any one of claims 1 or 2 to the cable of the drill rod, so that the signal input end is in a conductive state with the cable core rod, and connect the cable connector in the cable connection cavity, so that the cable core rod is connected to the signal transfer slip ring, and connect the signal transfer slip ring to the external monitoring equipment; the drill rod rotates to start working, and the rotors of the water braid spindle, the rotating shaft and the signal transfer slip ring rotate together, and the electrical signal transmits the information to the external monitoring equipment in real time.

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