Oil exploration mud pulse generator test bed

Abstract

The utility model discloses an oil exploration mud pulse generator test bench, which relates to the technical field of generators and comprises a tool cabinet, a variable frequency motor is arranged in the tool cabinet, a detector is arranged at the upper end of the tool cabinet, a permanent magnet is arranged in the detector, and a belt pulley is arranged at the side end of the permanent magnet. The driving end of the variable frequency motor is connected with the belt pulley through a belt. The detector is arranged, the rotor of the generator is inserted into the detector and fixed, the variable frequency motor is started to drive the permanent magnet to rotate, and according to the electromagnetic induction principle, when the permanent magnet rotates, the rotor of the generator cuts magnetic field lines, so that the rotor has current; various parameters of the generator can be monitored through the generated current by using a control program, and various parameters of the generator at different rotating speeds can be observed by adjusting the rotating speed of the variable frequency motor, so that the test purpose is achieved, and the problem that an existing oil exploration mud pulse generator is difficult to test and detect is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of generators, in particular to a test bench for a mud pulse generator for oil exploration. Background Art

[0002] The mud generator relies on the flowing mud to impact the turbine to rotate, thereby driving the generator to work. The output electrical energy increases with the increase of mud displacement. It can provide high-power electrical energy safely and reliably. The pulse generator is an inertial energy storage high-power pulse power supply that provides large current pulses to the load. It has comprehensive advantages in energy density and power density.

[0003] As oil drilling equipment enters the era of intelligence, downhole tools have an increasing demand for electrical energy. An oil exploration mud pulse generator that combines the advantages of the above two generators has been invented, and it has become the mainstream development trend of downhole power supply.

[0004] Each oil exploration mud pulse generator needs to be tested before it is officially used to detect whether it can meet the implementation standards. However, since the oil exploration mud pulse generator combines two generators, its own structure is very complex and difficult to test. Utility Model Content

[0005] In view of the above background technology, the prior art has the insufficiency and defect of being difficult to test and detect the oil exploration mud pulse generator.

[0006] The utility model discloses a test bench for oil exploration mud pulse generator, comprising a tool cabinet, a variable frequency motor is arranged inside the tool cabinet, a detector is arranged at the upper end of the tool cabinet, a permanent magnet is arranged inside the detector, a pulley is arranged at the side end of the permanent magnet, a driving end of the variable frequency motor is connected with the pulley through a belt, a shell is arranged at the outer end of the permanent magnet, a rotor fixing sleeve is arranged at the side end of the shell, and a speed sensor is arranged in the detector.

[0007] Furthermore, a frequency converter is arranged inside the tool cabinet, the frequency converter is connected to the variable frequency motor through a wire, an electrical signal access device is arranged at the front end of the tool cabinet, a control panel is arranged at the front end of the tool cabinet, and a speed display is arranged at the front end of the tool cabinet.

[0008] Furthermore, a front end cover is provided inside the detector, the front end cover is connected to the housing by bolts, the speed sensor is arranged inside the front end cover, and a permanent magnet housing is provided at the outer end of the permanent magnet.

[0009] Furthermore, a permanent magnet fixing sleeve is arranged inside the permanent magnet housing, the outer side of the permanent magnet side end is arranged as a bevel, the inner wall of the side end of the permanent magnet fixing sleeve is arranged as a bevel, and the bevel of the permanent magnet fixing sleeve is slidably connected with the bevel of the permanent magnet.

[0010] Furthermore, a speed gear is arranged between the pulley and the permanent magnet housing, a front end bearing is arranged between the permanent magnet housing and the housing, and a rear end bearing is arranged between the permanent magnet housing and the housing.

[0011] Furthermore, the inner wall of the side end of the rotor fixing sleeve is a bevel, and a locker is provided on the side end of the rotor fixing sleeve. The side end of the locker is a bevel and is slidably connected in the bevel of the side end of the rotor fixing sleeve. The side end of the rotor fixing sleeve is threadedly connected with a locking nut, and a slot is provided on the inner wall of the locking nut, which can be slidably connected to the locker.

[0012] Furthermore, a belt protection cover is provided at the upper end of the tool cabinet, the belt pulley is located in the belt protection cover, a supporting roller is provided at the upper end of the tool cabinet, and a transparent protection cover is provided at the rear end of the tool cabinet.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model is provided with a detector, and the rotor of the generator is inserted into the rotor fixing sleeve and fixed. The wiring terminal at the tail end of the rotor is connected to the electrical signal access device, and then connected to the computer, and then the variable frequency motor is started through the control panel to drive the permanent magnet to rotate in the shell. According to the "electromagnetic induction principle", when the permanent magnet rotates, the generator rotor will cut the magnetic field line, so that the rotor can have current. Through the generated current and the use of the control program, various parameters of the generator can be monitored. By adjusting the speed of the variable frequency motor, various parameters of the generator at different speeds can be observed, thereby achieving the test purpose and solving the problem that the existing oil exploration mud pulse generator is difficult to test and detect.

[0015] 2. The utility model is provided with a locking device, the generator rotor is inserted into the rotor fixing sleeve, and then the locking nut is rotated. The threaded groove on the inner wall of the locking nut cooperates with the rotor fixing sleeve, so that the locking nut can be moved, so that the internal slot can push the locking device, so that the locking device is inserted into the gap between the rotor fixing sleeve and the generator rotor, so that the rotor fixing sleeve can clamp the generator rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model device;

[0018] Figure 2 This is a schematic diagram of the front view structure of the device of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the variable frequency motor and detector of the utility model;

[0020] Figure 4 This is a schematic diagram of the split structure of the permanent magnet of the utility model;

[0021] Figure 5 This is a schematic diagram of the split structure of the rotor fixing sleeve of the utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the detector of the utility model.

[0023] In the figure: 1. tool cabinet; 2. frequency conversion motor; 3. detector; 4. permanent magnet; 5. pulley; 6. housing; 7. rotor fixing sleeve; 8. speed sensor; 9. frequency converter; 10. electrical signal access device; 11. control panel; 12. speed display; 13. front end cover; 14. permanent magnet housing; 15. permanent magnet fixing sleeve; 16. speed gear; 17. front end bearing; 18. rear end bearing; 19. locker; 20. locking nut; 21. belt protection cover; 22. support roller; 23. transparent protection cover. DETAILED DESCRIPTION

[0024] The following will disclose multiple embodiments of the utility model with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the utility model. In other words, in some embodiments of the utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0025] See also Figure 1 , Figure 2 The utility model of the oil exploration mud pulse generator test bench includes a tool cabinet 1, a variable frequency motor 2 is arranged inside the tool cabinet 1, a frequency converter 9 is arranged inside the tool cabinet 1, the frequency converter 9 is connected to the variable frequency motor 2 through a wire, and the rotation speed of the driving end of the variable frequency motor 2 can be changed by adjusting the current and voltage of the frequency converter 9.

[0026] See also Figure 1 , Figure 2An electric signal access device 10 is provided at the front end of the tool cabinet 1. The wiring terminal at the tail end of the generator rotor is connected to the electric signal access device 10, and then connected to the computer, so that the current generated by the rotor can be transmitted to the computer through the electric signal access device 10 for analysis. A control panel 11 is provided at the front end of the tool cabinet 1. The control panel 11 is used to start the variable frequency motor 2 and adjust the current and voltage of the inverter 9.

[0027] See also Figure 1 , Figure 3 , Figure 4 A detector 3 is provided at the upper end of the tool cabinet 1, a permanent magnet 4 is provided in the detector 3, a pulley 5 is provided at the side end of the permanent magnet 4, and the driving end of the variable frequency motor 2 is connected to the pulley 5 through a belt. Starting the variable frequency motor 2 can drive the pulley 5 to rotate, thereby driving the permanent magnet 4 to rotate, so that the generator rotor can cut the magnetic field lines of the permanent magnet 4, thereby generating current.

[0028] See also Figure 1 A belt protection cover 21 is provided at the upper end of the tool cabinet 1, and the pulley 5 is located in the belt protection cover 21 for protecting the belt and the pulley 5. A shell 6 is provided at the outer end of the permanent magnet 4 for protecting the permanent magnet 4.

[0029] See also Figure 4 , Figure 6 A permanent magnet shell 14 is provided at the outer end of the permanent magnet 4, a permanent magnet fixing sleeve 15 is provided inside the permanent magnet shell 14, the outer side end of the permanent magnet 4 is provided as a bevel, the inner wall of the side end of the permanent magnet fixing sleeve 15 is provided as a bevel, the bevel of the permanent magnet fixing sleeve 15 is slidably connected with the bevel of the permanent magnet 4, and the permanent magnet 4 can be clamped in the permanent magnet shell 14 through the permanent magnet fixing sleeve 15, so that the permanent magnet 4 can be fixed to facilitate its rotation.

[0030] See also Figure 4 , Figure 6 A speed gear 16 is arranged between the pulley 5 and the permanent magnet housing 14. The speed gear 16 is used as a buffer rotating part between the pulley 5 and the permanent magnet housing 14 to prevent the permanent magnet housing 14 from being directly locked and damaging the permanent magnet 4 when the pulley 5 stops rotating. A front end bearing 17 is arranged between the permanent magnet housing 14 and the housing 6, and a rear end bearing 18 is arranged between the permanent magnet housing 14 and the housing 6. The front end bearing 17 and the rear end bearing 18 can ensure that the permanent magnet housing 14 rotates smoothly in the housing 6.

[0031] See also Figure 3 , Figure 5 , Figure 6A rotor fixing sleeve 7 is provided at the side end of the housing 6. The rotor fixing sleeve 7 is used to fix the generator rotor. The inner wall of the side end of the rotor fixing sleeve 7 is a bevel. A locker 19 is provided at the side end of the rotor fixing sleeve 7. The side end of the locker 19 is a bevel and is slidably connected in the bevel of the side end of the rotor fixing sleeve 7. A locking nut 20 is threadedly connected to the side end of the rotor fixing sleeve 7. A slot is provided on the inner wall of the locking nut 20, which can be slidably connected to the locker 19. Rotating the locking nut 20 can cooperate with the rotor fixing sleeve 7 to rotate the locking nut 20, so that the locking nut 20 can be pushed through the slot inside it to clamp and fix the generator rotor.

[0032] See also Figure 2 , Figure 4 , Figure 6 A front end cover 13 is provided inside the detector 3, and the front end cover 13 is connected to the outer shell 6 by bolts. A speed sensor 8 is provided inside the detector 3, and the speed sensor 8 is provided in the front end cover 13. The speed sensor 8 can detect the rotation speed of the permanent magnet outer shell 14. A speed display 12 is provided at the front end of the tool cabinet 1. The speed sensor 8 and the speed display 12 are connected by a wire. The speed display 12 can display the value detected by the speed sensor 8, so as to facilitate the experimenter to perform sensing.

[0033] See also Figure 1 , Figure 2 A supporting roller 22 is provided at the upper end of the tool cabinet 1, and the supporting roller 22 is used to support the generator rotor. A transparent protective cover 23 is provided at the rear end of the tool cabinet 1. When testing, the transparent protective cover 23 needs to be closed to avoid accidents during the test and injuries to surrounding personnel.

[0034] When using the utility model: insert the generator rotor into the rotor fixing sleeve 7, then rotate the locking nut 20, the thread groove on the inner wall of the locking nut 20 cooperates with the rotor fixing sleeve 7, and the locking nut 20 can be moved, so that the internal card slot can push the locker 19, so that the locker 19 is inserted into the gap between the rotor fixing sleeve 7 and the generator rotor, so that the rotor fixing sleeve 7 clamps the generator rotor, and the wiring terminal at the tail end of the rotor is connected to the electrical signal access device 10, and then connected to the computer;

[0035] Put down the transparent protective cover 23, start the variable frequency motor 2 through the control panel 11, and make it rotate by driving the pulley 5 through the belt. The rotation of the pulley 5 can drive the speed gear 16, the permanent magnet fixing sleeve 15, the permanent magnet housing 14, and the permanent magnet 4 in the housing 6 through the front bearing 17 and the rear bearing 18 to rotate. According to the "electromagnetic induction principle", when the permanent magnet 4 rotates, the generator rotor does not move and will cut the magnetic field lines, so that the rotor can have current, and the current is transmitted to the electrical signal access device 10 through the wiring, and then transmitted to the computer for analysis. During this period, the speed sensor 8 detects the rotation speed of the permanent magnet housing 14 and displays the detected value through the speed display 12. Through the generated current and using the control program, various parameters of the generator can be monitored. By adjusting the current and voltage of the inverter 9, the speed of the variable frequency motor 2 can be changed, so as to observe various parameters of the generator at different speeds, thereby achieving the test purpose.

[0036] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A test bench for a mud pulse generator for oil exploration, comprising a tool cabinet (1), characterized in that: A variable frequency motor (2) is arranged inside the tool cabinet (1), a detector (3) is arranged at the upper end of the tool cabinet (1), a permanent magnet (4) is arranged inside the detector (3), a pulley (5) is arranged at the side end of the permanent magnet (4), a driving end of the variable frequency motor (2) is connected to the pulley (5) through a belt, a housing (6) is arranged at the outer end of the permanent magnet (4), a rotor fixing sleeve (7) is arranged at the side end of the housing (6), and a speed sensor (8) is arranged inside the detector (3).

2. The oil exploration mud pulse generator test bench according to claim 1 is characterized by: The tool cabinet (1) is provided with a frequency converter (9) inside, the frequency converter (9) is connected to the variable frequency motor (2) via a wire, the front end of the tool cabinet (1) is provided with an electric signal access device (10), the front end of the tool cabinet (1) is provided with a control panel (11), and the front end of the tool cabinet (1) is provided with a speed display (12).

3. The oil exploration mud pulse generator test bench according to claim 1 is characterized by: A front end cover (13) is arranged inside the detector (3), and the front end cover (13) is connected to the housing (6) by bolts. The speed sensor (8) is arranged inside the front end cover (13), and a permanent magnet housing (14) is arranged at the outer end of the permanent magnet (4).

4. The oil exploration mud pulse generator test bench according to claim 3 is characterized by: A permanent magnet fixing sleeve (15) is arranged inside the permanent magnet housing (14), the outer side of the permanent magnet (4) is arranged as a bevel, the inner wall of the side of the permanent magnet fixing sleeve (15) is arranged as a bevel, and the bevel of the permanent magnet fixing sleeve (15) is slidably connected to the bevel of the permanent magnet (4).

5. The oil exploration mud pulse generator test bench according to claim 3 is characterized by: A speed gear (16) is provided between the pulley (5) and the permanent magnet housing (14), a front end bearing (17) is provided between the permanent magnet housing (14) and the housing (6), and a rear end bearing (18) is provided between the permanent magnet housing (14) and the housing (6).

6. The oil exploration mud pulse generator test bench according to claim 1 is characterized by: The inner wall of the side end of the rotor fixing sleeve (7) is a beveled edge, and a locker (19) is provided at the side end of the rotor fixing sleeve (7). The side end of the locker (19) is a beveled edge and is slidably connected inside the beveled edge of the side end of the rotor fixing sleeve (7). The side end of the rotor fixing sleeve (7) is threadedly connected with a locking nut (20), and a slot is provided on the inner wall of the locking nut (20), and the slot can be slidably connected to the locker (19).

7. The oil exploration mud pulse generator test bench according to claim 1 is characterized by: The upper end of the tool cabinet (1) is provided with a belt protection cover (21), the belt pulley (5) is located in the belt protection cover (21), the upper end of the tool cabinet (1) is provided with a support roller (22), and the rear end of the tool cabinet (1) is provided with a transparent protection cover (23).

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