A tool for disassembling and assembling casing of turbine generator of drilling instrument

Abstract

The utility model relates to the technical field of turbine generator disassembly and assembly, and discloses a turbine generator housing disassembly and assembly tool for drilling instruments, including a limit cylinder, a fixing ring fixedly connected to the outer wall of the limit cylinder, an extension rod fixedly connected to one side of the fixing ring, a clamping plate slidably connected to the outer wall of the extension rod, a locking nut threadedly connected to the side wall of the clamping plate, the locking nut is internally rotatably connected to the outer wall of the extension rod, a screw assembly is arranged inside the clamping plate, and the screw assembly is used to push a propulsion sleeve to move. In the utility model, the connecting column on one side is driven to continue to move by the propulsion screw, while the propulsion screw rotates inside the clamping plate, and the movement of the propulsion screw drives the propulsion sleeve to move, so that the movement of the propulsion sleeve is inside the limit cylinder, thereby achieving the effect of stable disassembly and assembly of the generator housing, solving the problem of instability during disassembly and assembly, which causes damage to the motor, and improving practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of turbine generator disassembly and assembly, in particular to a turbine generator shell disassembly and assembly tool for a drilling instrument. Background Art

[0002] Logging while drilling refers to the process in which logging instruments measure engineering parameters and geological parameters underground during drilling and use a data telemetry system to send the measurement results to the ground for processing in real time. Instruments that perform these measurement functions are called logging while drilling instruments. The power supply for logging while drilling instruments is provided by a downhole turbine generator. High-pressure mud fluid passes through the inside of the logging while drilling instrument and reaches the turbine of the turbine generator, forcing the turbine to rotate and converting the fluid pressure energy into mechanical energy for the turbine to rotate. The turbine drives the generator rotor to rotate, thereby generating electricity and supplying power.

[0003] The internal structure of the turbine generator can be roughly divided into four parts: the motor assembly, the turbine housing, the magnetic coupling intermediate housing, and the flow channel adapter assembly. The turbine housing, the magnetic coupling intermediate housing, and the flow channel adapter form an internal space for accommodating the motor assembly and isolating it from external mud pressure. The outer wall of the motor assembly and the inner hole of the turbine housing are installed together through a tight fit.

[0004] However, in the prior art, when the turbine generator casing is disassembled and assembled, a hammer and a metal rod are usually used in combination, and the large flat edge of the right side of the motor assembly is knocked at multiple points in different directions to disassemble and assemble the casing. This will cause the metal rod to apply force at a single point, resulting in uneven force and the need to constantly change the knocking position, which is inefficient. In addition, the metal rod applying force during the disassembly process needs to be inserted into the casing for knocking, which poses a risk of damaging the casing threads and sealing surfaces. At the same time, the cable output component on the right side of the motor assembly may rotate relative to the motor stator during the knocking process, thereby shearing the wire and causing damage to the wire. Therefore, a turbine generator casing disassembly and assembly tool for a downhole instrument is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a turbine generator casing disassembly and assembly tool for a drilling instrument, aiming to improve the problem in the prior art that when disassembling the turbine generator, force is applied at a single point, the force is uneven, the knocking position needs to be constantly changed, and the disassembly efficiency is reduced.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A casing disassembly and assembly tool for a turbine generator of a drilling instrument comprises a limit cylinder, a fixing ring is fixedly connected to the outer wall of the limit cylinder, an extension rod is fixedly connected to one side of the fixing ring, a compression plate is slidably connected to the outer wall of the extension rod, a locking nut is threadedly connected to the side wall of the compression plate, the locking nut is rotatably connected to the outer wall of the extension rod, a screw assembly is arranged inside the compression plate, and the screw assembly is used to push the propulsion sleeve to move;

[0008] As a further description of the above technical solution:

[0009] The screw assembly includes a propulsion screw, the outer wall of which is threadedly connected to the inside of the clamping plate;

[0010] As a further description of the above technical solution:

[0011] One end of the advancing screw is fixedly connected to a connecting column, and a bearing screw is fixedly connected inside the connecting column;

[0012] As a further description of the above technical solution:

[0013] The outer wall of the bearing screw is fixedly connected to the inside of the advancing screw, and one side of the connecting column is fixedly connected to a bearing limit pad;

[0014] As a further description of the above technical solution:

[0015] A bearing end cover is fixedly connected inside the connecting column, and a deep groove ball bearing is fixedly connected to the side wall of the bearing end cover;

[0016] As a further description of the above technical solution:

[0017] The side wall of the connecting column is fixedly connected with an end cover screw, and the side wall of the end cover screw is fixedly connected to the side wall of the bearing end cover;

[0018] As a further description of the above technical solution:

[0019] A propulsion sleeve is slidably connected inside the limiting cylinder, and one side of the propulsion sleeve is fixedly connected to the side wall of the connecting column.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, by rotating the push screw, the push screw drives the connecting column on one side to continue to move, and at the same time the push screw rotates inside the clamping plate, and the movement of the push screw drives the push sleeve to move, and the movement of the push sleeve is inside the limit cylinder, thereby achieving the effect of stable disassembly and assembly of the generator casing, solving the problem of instability during disassembly and assembly, which leads to damage to the motor, and improving the practicability of the turbine generator casing disassembly and assembly tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional schematic diagram of a casing disassembly and assembly tool for a turbine generator of a drilling instrument proposed by the utility model;

[0023] Figure 2 This is a schematic cross-sectional structure diagram of a limit cylinder of a turbine generator casing disassembly and assembly tool for a drilling instrument proposed by the utility model;

[0024] Figure 3 for Figure 2 Enlarged structural diagram of point A in the middle.

[0025] Legend:

[0026] 1. Bearing end cover; 2. Bearing limit pad; 3. End cover screw; 4. Deep groove ball bearing; 5. Bearing screw; 6. Limit cylinder; 7. Push sleeve; 8. Extension rod; 9. Pressure plate; 10. Push screw; 11. Lock nut; 12. Fixing ring; 13. Connecting column. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-Figure 3 The utility model provides an embodiment: a casing disassembly and assembly tool for a turbine generator of a drilling instrument, including a limit cylinder 6, a fixed ring 12 is fixedly connected to the outer wall of the limit cylinder 6, an extension rod 8 is fixedly connected to one side of the fixed ring 12, a compression plate 9 is slidably connected to the outer wall of the extension rod 8, a locking nut 11 is threadedly connected to the side wall of the compression plate 9, the locking nut 11 is internally rotatably connected to the outer wall of the extension rod 8, a screw assembly is arranged inside the compression plate 9, the screw assembly is used to push the propulsion sleeve 7 to move, the screw assembly includes a propulsion screw 10, the outer wall of the propulsion screw 10 is threadedly connected to the compression plate 9 Internally, one end of the thrust screw 10 is fixedly connected to a connecting column 13, a bearing screw 5 is fixedly connected inside the connecting column 13, the outer wall of the bearing screw 5 is fixedly connected to the inside of the thrust screw 10, a bearing limit pad 2 is fixedly connected to one side of the connecting column 13, a bearing end cover 1 is fixedly connected inside the connecting column 13, a deep groove ball bearing 4 is fixedly connected to the side wall of the bearing end cover 1, an end cover screw 3 is fixedly connected to the side wall of the bearing end cover 1, a thrust sleeve 7 is slidably connected inside the limit cylinder 6, and one side of the thrust sleeve 7 is fixedly connected to the side wall of the connecting column 13.

[0029] Specifically, when using the turbine generator housing disassembly and assembly tool of the drilling instrument, the turbine generator housing to be disassembled must be fixed first, and then the limit cylinder 6 is installed on the left end of the motor housing to support and limit the position of the housing. At the same time, the propulsion sleeve 7 is placed on the right side of the motor housing to ensure the fixation and alignment of the housing. The clamping plate 9 is fixed on the extension rod 8 and provides a relative reaction force. Then, the rotation of the propulsion screw 10 is started. The propulsion screw 10 transmits force through the clamping plate 9 to make the propulsion sleeve 7 close to one side of the housing. The outer side of the propulsion screw 10 rotates while the inner side of the clamping plate 9 transmits force through the connecting column 13, and the deep groove ball bearing 4 inside the connecting column 13 rotates. The deep groove ball bearing 4 ensures the rotation of the propulsion screw 10 while keeping the propulsion sleeve 7 relatively still, thereby effectively pushing the parts inside the motor out of the housing and realizing the disassembly operation of the turbine generator housing.

[0030] Working principle: When using the turbine generator casing disassembly and assembly tool of the drilling instrument, first fix the casing of the turbine generator to be disassembled, then place the limit cylinder 6 outside the turbine casing and against the left end of the motor casing, then press the propulsion sleeve 7 against the right side of the motor, then fix the clamping plate 9 on the extension rod 8 to provide a support reaction force, then rotate the propulsion screw 10, and the force of the propulsion screw 10 will press the propulsion sleeve 7 on one side, and at the same time, the outer wall of the propulsion screw 10 rotates inside the clamping plate 9, and the reaction force provided by the clamping plate 9 will cause the propulsion screw 10 to rotate inside the connecting column 13, and at the same time, the deep groove ball bearing 4 inside the connecting column 13 ensures that the propulsion screw 10 rotates while the propulsion sleeve 7 remains relatively fixed, and then the movement of the propulsion sleeve 7 can remove the components inside the motor from the casing, thereby achieving the effect of disassembling the motor casing.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for disassembling and assembling a casing of a turbine generator of a drilling instrument, comprising a stopper cylinder (6), characterized in that: The outer wall of the limiting cylinder (6) is fixedly connected to a fixing ring (12), one side of the fixing ring (12) is fixedly connected to an extension rod (8), the outer wall of the extension rod (8) is slidably connected to a clamping plate (9), the side wall of the clamping plate (9) is threadedly connected to a locking nut (11), the locking nut (11) is internally rotatably connected to the outer wall of the extension rod (8), a screw assembly is arranged inside the clamping plate (9), and the screw assembly is used to push the propulsion sleeve (7) to move.

2. A turbine generator casing disassembly and assembly tool for a drilling instrument according to claim 1, characterized in that: The screw assembly comprises a propulsion screw (10), the outer wall of which is threadedly connected to the interior of a pressure plate (9).

3. A turbine generator casing disassembly and assembly tool for a drilling instrument according to claim 2, characterized in that: One end of the advancing screw rod (10) is fixedly connected to a connecting column (13), and a bearing screw (5) is fixedly connected inside the connecting column (13).

4. A turbine generator casing disassembly and assembly tool for a drilling instrument according to claim 3, characterized in that: The outer wall of the bearing screw (5) is fixedly connected to the inside of the advancing lead screw (10), and a bearing limit pad (2) is fixedly connected to one side of the connecting column (13).

5. A turbine generator casing disassembly and assembly tool for a drilling instrument according to claim 4, characterized in that: A bearing end cover (1) is fixedly connected inside the connecting column (13), and a deep groove ball bearing (4) is fixedly connected to the side wall of the bearing end cover (1).

6. A turbine generator casing disassembly and assembly tool for a drilling instrument according to claim 5, characterized in that: The side wall of the connecting column (13) is fixedly connected to an end cover screw (3), and the side wall of the end cover screw (3) is fixedly connected to the side wall of the bearing end cover (1).

7. The turbine generator casing disassembly and assembly tool for a drilling instrument according to claim 1, characterized in that: A propulsion sleeve (7) is slidably connected inside the limiting cylinder (6), and one side of the propulsion sleeve (7) is fixedly connected to the side wall of the connecting column (13).

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