Positioning auxiliary assembly of ocean drilling coring device

Abstract

The utility model discloses a positioning auxiliary assembly of an ocean drilling coring device, which comprises tension sensors, a plurality of groups of tension sensors are respectively provided with a frame body, and a shaft body of a grooved wheel movably penetrates through the plurality of groups of frame bodies. According to the utility model, the double-thread screw drives the two groups of rod bodies to laterally move towards one end and the other end respectively, and the rod bodies can drive the column bodies to move out of the first grooves at the tension sensor, so that the frame body can drive the grooved wheel to complete disassembly and assembly, and the disassembly and assembly process of the grooved wheel driven by the frame body becomes simple and rapid. Compared with a traditional complex disassembly and assembly method, a large number of professional tools and tedious steps do not need to be used, an operator can complete replacement of the grooved wheel in a short time, the equipment maintenance efficiency is greatly improved, the interruption time of ocean drilling coring operation caused by replacement of the grooved wheel is shortened, and time cost and economic losses are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of ocean drilling, especially to a positioning auxiliary assembly of ocean drilling coring device. BACKGROUND

[0002] Ocean drilling coring is a key technical means in the fields of marine geological research and marine resource exploration. In the marine environment, accurately obtaining seabed stratum core samples is of great importance to understanding marine geological structure, oil and gas resource distribution, and sedimentary environment evolution. Tension sensors, as a device capable of directly measuring the force of a steel cable, provide a new approach to solving the positioning problem of ocean drilling coring. It can reflect the force state change of the drilling coring device in the marine environment in real time. By combining with other positioning technologies, it can effectively make up for the shortcomings of existing positioning methods and improve the positioning accuracy and reliability of ocean drilling coring operations, thus better promoting the development of marine scientific research and resource exploration.

[0003] Although the existing tension sensor with a groove wheel and a bearing seat can measure the force of the steel cable to ensure the height of the ocean drilling coring device entering the seawater, the existing groove wheel will be damaged after long-time contact with the steel cable. The bearing seat and the pressure sensor are usually fixed by bolts, which makes it quite troublesome to disassemble and replace the groove wheel, and relatively time-consuming, which may affect the coring progress. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a positioning auxiliary assembly of ocean drilling coring device.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A positioning auxiliary assembly of ocean drilling coring device, comprising a tension sensor, a plurality of said tension sensors are placed with a frame body, a plurality of said frame bodies are movably penetrated with the shaft body of a groove wheel, a plurality of said tension sensors are provided with a first recess at one end and the other end, a plurality of said frame bodies are rotatably connected with a plurality of double-headed screws, a plurality of said double-headed screws are threadedly connected with a rod body at one end and the other end, a plurality of said rod bodies are connected with a column body, and a plurality of said column bodies are respectively inserted into the corresponding first recess.

[0007] Preferably, a plurality of second recesses are provided on a plurality of said frame bodies, a first ball body is movably connected at part of said second recesses, and a second ball body is movably connected at the rest of said second recesses. A plurality of said first ball bodies are respectively in contact with one end and the other end of said groove wheel, and a plurality of said second ball bodies are respectively in contact with the shaft body of one end and the other end of said groove wheel.

[0008] Preferably, bolts are movably inserted through the four corners of each of the multiple sets of tension sensors.

[0009] Preferably, multiple sets of sliding grooves are provided at each of the multiple sets of frame bodies, and sliders are slidably connected to each of the multiple sets of sliding grooves, with each set of sliders being connected to a corresponding rod body.

[0010] Preferably, each of the multiple sets of double-ended screws is connected to a handle.

[0011] Preferably, the thread processing of one end and the other end of the multiple sets of double-ended screws are opposite.

[0012] Preferably, multiple sets of the first sphere and the second sphere are distributed at equal intervals.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By coordinating the first groove, double-ended screw, rod body, column body, and grooved wheel, the double-ended screw drives two sets of rod bodies to move laterally to one end and the other end respectively. The rod bodies then move the column body out of the first groove at the tension sensor, allowing the frame to move the grooved wheel for assembly and disassembly. This simplifies and speeds up the assembly and disassembly process. Compared to traditional, complex methods, this method eliminates the need for numerous specialized tools and cumbersome steps. Operators can complete the grooved wheel replacement in a shorter time, significantly improving equipment maintenance efficiency and reducing downtime in marine drilling coring operations caused by grooved wheel replacement, thus lowering time costs and economic losses. For example, in deep-sea drilling projects, time windows are precious; rapid grooved wheel replacement ensures that drilling progress is not significantly affected, guaranteeing the smooth progress of the project.

[0015] 2. Through the cooperation between the frame, the second groove, the first ball, and the second ball, when the frame is separated from the tension sensor, it can be quickly disassembled and assembled by means of the contact between the grooved wheel and the first ball and the second ball. The first ball and the second ball not only ensure that the grooved wheel is easy to disassemble and assemble with the frame, but also ensure the rotational stability of the grooved wheel when it is connected to the frame. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the positioning auxiliary component of a marine drilling coring device proposed in this utility model;

[0017] Figure 2 for Figure 1 A structural schematic diagram of the tension sensor, frame, and double-ended screw;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of the handle, slide, and slider;

[0019] Figure 4 forFigure 2 Structure diagram of the middle frame body, the second groove and the first ball body;

[0020] Figure 5 For Figure 2 Structure diagram of the tension sensor and the bolt.

[0021] In the figure: 1, tension sensor; 2, frame body; 3, first groove; 4, double-headed screw rod; 5, rod body; 6, column body; 7, handle; 8, groove wheel; 9, second groove; 10, first ball body; 11, second ball body; 12, sliding groove; 13, sliding block; 14, bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0023] Embodiment 1, refer to Figures 1 to 5 A positioning auxiliary assembly of a marine drilling coring device, comprising a tension sensor 1, the model of the tension sensor 1 is selected according to actual work requirements, a plurality of frame bodies 2 are placed on the plurality of tension sensors 1, shaft bodies of groove wheels 8 are movably penetrated through the plurality of frame bodies 2, first grooves 3 are formed at one end and the other end of the plurality of tension sensors 1, a plurality of double-headed screw rods 4 are rotatably connected at the plurality of frame bodies 2, rod bodies 5 are threadedly connected at one end and the other end of the plurality of double-headed screw rods 4, column bodies 6 are connected at the plurality of rod bodies 5, the plurality of column bodies 6 are respectively inserted into corresponding first grooves 3, the movement of the two rod bodies 5 is driven by the double-headed screw rod 4, the rod body 5 will drive the column body 6 to be connected or separated from the first groove 3, so that the frame body 2 can conveniently drive the groove wheel 8 to complete disassembly and assembly, and the disassembly and assembly of the groove wheel 8 are convenient.

[0024] In this embodiment, a plurality of second grooves 9 are formed on the plurality of frame bodies 2, a first ball 10 is movably connected at some of the second grooves 9, and a second ball 11 is movably connected at the rest of the second grooves 9. The plurality of first balls 10 are in contact with one end and the other end of the groove wheel 8, and the plurality of second balls 11 are in contact with the shaft of one end and the other end of the groove wheel 8. The first ball 10 and the second ball 11 are made of high-strength ceramic material, which has the advantages of high hardness, good wear resistance, and strong chemical stability. The plurality of first balls 10 are in contact with one end and the other end of the groove wheel 8. During the rotation of the groove wheel 8, the first ball 10 plays a supporting and friction-reducing role, enabling the groove wheel 8 to rotate more flexibly and stably, while avoiding wear caused by direct contact between the groove wheel 8 and the frame body 2. The plurality of second balls 11 are in contact with the shaft of one end and the other end of the groove wheel 8. The second ball 11 can effectively position and support the shaft of the groove wheel 8, ensuring that the shaft maintains a stable axial position during rotation, reducing the shaking and deviation of the shaft, and further improving the accuracy and reliability of the transmission of the groove wheel 8. The plurality of tension sensors 1 are movably penetrated by a bolt 14, which is used to fix the tension sensor 1 on the drilling platform. A plurality of sliding grooves 12 are formed on the plurality of frame bodies 2, and a sliding block 13 is movably connected at each of the sliding grooves 12. The plurality of sliding blocks 13 are connected to the corresponding rod bodies 5. The cooperation between the sliding block 13 and the sliding groove 12 can guide the movement of the rod body 5. A handle 7 is connected to each of the plurality of double-headed screws 4. The handle 7 is used to drive the rotation of the double-headed screw 4. The threads of one end and the other end of the plurality of double-headed screws 4 are opposite. This unique design enables the use of the thread transmission principle to achieve the reverse synchronous movement of the two rod bodies 5 when the double-headed screw 4 is rotated. The plurality of first balls 10 and the second balls 11 are equally distributed.

[0025] The working principle of this embodiment is as follows: when in use, the tension sensor 1 is installed on the drilling platform by the bolt 14, and the external steel rope is in contact with the groove wheel 8. When the marine drilling coring device is inserted into the seawater, the tension of the external steel rope will generate pressure on the groove wheel 8, which will be transmitted to the tension sensor 1. This can reflect the changes in the stress state of the drilling coring device in the marine environment in real time. By combining with other positioning technologies, positioning assistance can be achieved. When the groove wheel 8 needs to be replaced, the handle 7 drives the rotation of the double-headed screw 4, which in turn drives the movement of the rod body 5 and the column body 6 out of the corresponding first groove 3. After moving out, the frame body 2 can be separated from the tension sensor 1. Subsequently, the frame body 2 is moved sideways, and the groove wheel 8 can be removed between the two frame bodies 2 for replacement.

[0026] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A positioning aid assembly for an offshore coring device, comprising a tension sensor (1), characterized in that, A plurality of groups of the tension sensor (1) are placed on the frame (2), a plurality of groups of the shaft of the groove wheel (8) are movably penetrated on the frame (2), a plurality of groups of the first recess (3) are formed at one end and the other end of the tension sensor (1), a plurality of groups of the double-headed screw rod (4) are rotatably connected at the frame (2), a plurality of groups of the rod (5) are threadedly connected at one end and the other end of the double-headed screw rod (4), a plurality of groups of the column (6) are connected at the rod (5), and a plurality of groups of the column (6) are respectively inserted into the corresponding first recess (3).

2. A positioning aid assembly for an offshore coring device according to claim 1, wherein, A plurality of groups of the second recess (9) are formed on the frame (2), a plurality of groups of the first ball (10) are movably connected at part of the second recess (9), a plurality of groups of the second ball (11) are movably connected at the rest of the second recess (9), a plurality of groups of the first ball (10) are respectively in contact with one end and the other end of the groove wheel (8), and a plurality of groups of the second ball (11) are respectively in contact with one end and the other end of the shaft of the groove wheel (8).

3. A positioning aid assembly for a marine coring device according to claim 1, wherein, A plurality of groups of the tension sensor (1) are movably penetrated with the bolt (14) at the four corners.

4. A positioning aid assembly for a marine coring device according to claim 1, wherein, A plurality of groups of the sliding groove (12) are formed at the frame (2), a plurality of groups of the sliding block (13) are slidably connected at the sliding groove (12), and a plurality of groups of the sliding block (13) are respectively connected with the corresponding rod (5).

5. A positioning aid assembly for a marine coring device according to claim 1, wherein, A plurality of groups of the handle (7) are connected on the double-headed screw rod (4).

6. A positioning aid assembly for a marine coring device according to claim 1, wherein, The thread processing of one end and the other end of a plurality of groups of the double-headed screw rod (4) is opposite.

7. A positioning aid assembly for a marine coring device according to claim 2, wherein, A plurality of groups of the first ball (10) and the second ball (11) are equidistantly distributed.

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