Stroke detection device for pulser

By introducing a screw drive displacement seat and a rotary knob transmission system into the pulser detection device, the problem that the existing devices cannot adapt to different types of pulsers is solved, and the fixing and signal testing of pulsers of different sizes is realized, which improves the applicability of the test bench.

CN223283871UActive Publication Date: 2025-08-29TIANJIN DINGJIAN PETROLEUM MACHINERY CO LTD
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Patent Information

Application Number
CN202422754144.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-08-29
Estimated Expiration
2034-11-12

AI Technical Summary

Technical Problem

The existing pulser detection device has a single clamping mechanism and cannot adapt to different types of pulsers, resulting in low utilization of the test bench.

Method used

A stroke detection device for pulser is designed, which drives the displacement seat to move inside the base of the device through a screw, and extends the fixed block outward or inward by rotating the knob, transmission disc, and transmission gear, thereby achieving fixing the pulser of different sizes. Combined with the movement of the displacement seat, it adapts to signal strength tests at different positions.

Benefits of technology

It improves the applicability of the device, can adapt to different types of pulsers, enhances the utilization of the test bench, and facilitates the testing of transmission signal strength of pulsers at different positions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of pulser detection, in particular to a stroke detection device for a pulser, which comprises a device base, a detection screen and a signal detection plate are respectively arranged at two ends of the top surface of the device base, and a first displacement groove is arranged at the center of the opposite surface of the detection screen and the signal detection plate on the top surface of the device base. One end of the top surface of the first displacement groove is movably connected with a displacement seat; a fixed seat is arranged at the top end of the displacement seat; the displacement base can be driven by the lead screw to move in the device base, a worker can conveniently adjust the displacement base according to the length of the pulser, the pulser is placed in the fixing base, the rotary knob is rotated, the rotary knob enables the fixing block to extend outwards and inwards through the transmission disc and the transmission gear, and therefore the pulser is fixed. The pulser testing device is simple in structure and convenient to use, pulsers of different sizes can be conveniently fixed, the applicability of the device is improved, displacement can be conducted through the displacement base, and workers can conveniently test the transmission signal strength of the pulsers at different positions.
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Description

Technical Field

[0001] The utility model relates to the technical field of pulser detection, in particular to a stroke detection device for a pulser. Background Art

[0002] The pulser is a core component in LWD and MWD, and plays a vital role in the entire LWD process. Therefore, the daily maintenance of the pulser is also particularly important.

[0003] For example, patent number CN216694724U discloses a pulser stroke detection device, including a base and a pulser, the pulser is located above the base, and a detection structure is provided between the pulser and the base; the detection structure includes: a fixing frame, a ruler, a pair of mounting frames, a marking block, an electric push rod and a fixing assembly, the fixing frame is located above the base, the fixing frame fixes the pulser to the upper wall of the base through the fixing assembly, a pair of the mounting frames are respectively mounted on the upper wall of the base, a pair of the mounting frames are both located on the right side of the pulser, the ruler is mounted on a pair of the mounting frames, the ruler is located on the right side of the pulser, rectangular through holes are opened on the left and right walls of the marking block, the marking block is movably mounted on the ruler, the electric push rod is mounted on the upper wall of the base, the electric push rod is located in front of the ruler, and the electric push rod is located on the right side of the marking block. The utility model adopts a detection structure with a simple structure and convenient operation, which can detect the stroke of the pulser and directly check whether the distance of the pulser stroke meets the requirements. The device can automatically reset after a pulser stroke is detected, which solves the problem that the existing traditional detection method adopts a method of fixing the dial indicator probe to the pulser. This traditional detection method cannot detect whether the pulser itself has failed and cannot record the distance of the pulser stroke. However, when the pulser detection device is used by the staff, it is necessary to first clamp the pulser with a clamping mechanism and then simulate the working conditions of the mud pulser under different pressures and resistances. However, the existing clamping mechanism is relatively single and cannot adapt to different types of pulsers, resulting in the problem of low utilization of the test bench.

[0004] Therefore, when the staff use the above-mentioned pulser detection device, they need to first use a clamping mechanism to clamp the pulser, and then simulate the working conditions of the mud pulser under different pressures and resistances. However, the existing clamping mechanism is relatively simple and cannot adapt to different types of pulsers, resulting in the problem of low utilization of the test bench. A stroke detection device for a pulser can be designed, which can drive the displacement seat to displace inside the base of the device through a screw rod, so that the staff can adjust the displacement seat according to the length of the pulser, and put the pulser into the fixed seat. By rotating the knob, the knob extends the fixed block outward and inward through the transmission disc and the transmission gear, so as to facilitate the fixation of pulsers of different sizes, improve the applicability of the device, and can be displaced through the displacement seat, so that the staff can test the transmission signal strength of the pulser at different positions. Utility Model Content

[0005] In order to overcome the problem that when the pulser detection device is used by the staff, it is necessary to first use a clamping mechanism to clamp the pulser, and then simulate the working conditions of the mud pulser under different pressures and resistances. However, the existing clamping mechanism is relatively simple and cannot adapt to different types of pulsers, resulting in low utilization of the test bench.

[0006] The technical solution of the utility model is: a stroke detection device for a pulser, including a device base, a detection screen and a signal detection plate are respectively provided at both ends of the top surface of the device base, a first displacement groove is provided at the center position of the opposite surfaces of the detection screen and the signal detection plate on the top surface of the device base, one end of the top surface of the first displacement groove is movably connected to a displacement seat, the top of the displacement seat is provided with a fixed seat, the four ends of the top surface of the fixed seat are provided with a second displacement groove, the top of the second displacement groove is provided with a fixed block, and a knob is provided on the top surface of the fixed seat behind the fixed block, and the bottom end of the knob extends to the inner side of the fixed seat.

[0007] Preferably, the displacement seat can be driven by a screw rod to move inside the base of the device, so that the staff can adjust the displacement seat according to the length of the pulser, and the pulser is placed in the fixed seat. By rotating the knob, the knob extends the fixed block outward and inward through the transmission disc and the transmission gear, thereby facilitating the fixation of pulsers of different sizes, improving the applicability of the device, and can be displaced through the displacement seat, so that the staff can test the transmission signal strength of the pulser at different positions.

[0008] Preferably, the rear end of the displacement seat is located on the inner side of the device base and is provided with a screw rod, one end of the screw rod passes through the displacement seat and extends to the inner side of the device base, and the displacement seat and the screw rod are engaged with each other.

[0009] Preferably, a servo motor is provided on the inner side of the device base at one end of the screw rod, and one end of the screw rod passes through the device base and extends to the output end of one end of the servo motor. The screw rod and the servo motor are connected by a coupling, and the detection screen is electrically connected to the servo motor.

[0010] Preferably, the bottom end of the fixed block passes through the second displacement slot and extends to the inner side of the fixed seat. A transmission disc is provided below the fixed block at the bottom end of the inner wall of the fixed seat. A transmission gear is provided on the inner wall of the transmission disc on one side of the bottom end of the fixed block, and the top end of the transmission gear extends to one side of the fixed block.

[0011] Preferably, the bottom end of the knob passes through the fixed seat and extends to the outside of the transmission disc. Gears are provided at the upper and lower ends of the transmission gear. A rack is provided on one side of the top of the transmission gear, which is located on the bottom surface of the fixed block. The transmission gear and the rack are engaged with each other, and the knob is connected to the transmission gear through the transmission disc.

[0012] Preferably, a connecting seat is provided at the rear end of the fixed seat, and a mounting groove is provided at the bottom end of the connecting seat, which is located on the inner side of the displacement seat. The bottom end of the connecting seat extends to the inner side of the mounting groove, and a positioning pin is provided on one side of the outer end surface of the displacement seat. One end of the positioning pin passes through the displacement seat and the connecting seat and extends to the outer side of the displacement seat.

[0013] Beneficial effects of the utility model:

[0014] The displacement seat can be driven by a screw rod to move inside the base of the device, so that the staff can adjust the displacement seat according to the length of the pulser. After the adjustment is completed, the pulser is placed in the fixed seat, and the knob is rotated. The knob extends the fixed block outward and inward through the transmission disc and the transmission gear, so that pulsers of different sizes can be fixed, thereby improving the applicability of the device. In addition, the displacement seat can be displaced, which makes it convenient for the staff to test the transmission signal strength of the pulser at different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 What is shown is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 Shown is a schematic diagram of the structure of the fixing seat of the utility model;

[0017] Figure 3 Shown is a schematic diagram of the internal structure of the fixing seat of the utility model;

[0018] Figure 4 What is shown is a schematic diagram of the structure of the transmission gear of the present utility model.

[0019] Explanation of the accompanying drawings: 1. Device base; 2. Detection screen; 3. Displacement seat; 4. Connecting seat; 5. Fixed seat; 6. Positioning pin; 7. Signal detection board; 8. First displacement slot; 9. Screw rod; 10. Transmission disc; 11. Knob; 12. Fixed block; 13. Second displacement slot; 14. Rack; 15. Transmission gear. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to ( Figure 1-4 ), the utility model provides a technical solution: a stroke detection device for a pulser, comprising a device base 1, a detection screen 2 and a signal detection board 7 are respectively provided at both ends of the top surface of the device base 1, the center position of the opposite surfaces of the detection screen 2 and the signal detection board 7 is located on the top surface of the device base 1, a first displacement groove 8 is provided, one end of the top surface of the first displacement groove 8 is movably connected with a displacement seat 3, the rear end of the displacement seat 3 is located on the inner side of the device base 1 and is provided with a screw rod 9, one end of the screw rod 9 penetrates the displacement seat 3 and extends to the inner side of the device base 1, the displacement seat 3 and the screw rod 9 are engaged with each other, one end of the screw rod 9 is located on the inner side of the device base 1 and is provided with a servo motor, one end of the screw rod 9 penetrates the device base 1 and extends to the output end of one end of the servo motor, the screw rod 9 and the servo motor are connected by a coupling, the detection screen 2 is electrically connected to the servo motor, and then the displacement seat 3 can be driven by the screw rod 9 to move inside the device base 1, so that the staff can adjust the displacement seat 3 according to the length of the pulser, thereby improving the applicability of the device;

[0022] Please refer to ( Figure 2-3 ), in this embodiment, a fixed seat 5 is provided at the top of the displacement seat 3, and a second displacement groove 13 is provided at the four ends of the top surface of the fixed seat 5. A fixed block 12 is provided at the top of the second displacement groove 13. A knob 11 is provided on the top surface of the fixed seat 5 behind the fixed block 12. The bottom end of the knob 11 extends to the inner side of the fixed seat 5. The bottom end of the fixed block 12 passes through the second displacement groove 13 and extends to the inner side of the fixed seat 5. A transmission disc 10 is provided at the bottom end of the inner wall of the fixed seat 5 below the fixed block 12. A transmission gear 15 is provided on the inner wall of the transmission disc 10 on one side of the bottom end of the fixed block 12. The top end of the transmission gear 15 extends to the inner side of the fixed seat 5. It extends to one side of the fixed block 12, and the bottom end of the knob 11 passes through the fixed seat 5 and extends to the outside of the transmission disc 10. Gears are provided at the upper and lower ends of the transmission gear 15. A rack 14 is provided on one side of the top of the transmission gear 15, which is located on the bottom surface of the fixed block 12. The transmission gear 15 and the rack 14 are meshed with each other. The knob 11 is connected to the transmission gear 15 through the transmission disc 10. Then, by rotating the knob 11, the knob 11 can extend outward and inward through the transmission disc 10 and the transmission gear 15, thereby facilitating the fixation of pulsers of different sizes and improving the applicability of the device.

[0023] Please refer to ( Figure 1 ), in this embodiment, a connecting seat 4 is provided at the rear end of the fixing seat 5, and a mounting groove is provided at the bottom end of the connecting seat 4 on the inner side of the displacement seat 3. The bottom end of the connecting seat 4 extends to the inner side of the mounting groove, and a positioning pin 6 is provided on one side of the outer end surface of the displacement seat 3. One end of the positioning pin 6 passes through the displacement seat 3 and the connecting seat 4 and extends to the outer side of the displacement seat 3. The fixing seat 5 and the displacement seat 3 can be disassembled and assembled through the positioning pin 6, which facilitates the replacement of the displacement seat 3.

[0024] During operation, the power is turned on and the device is started. The displacement seat 3 can be driven by the screw rod 9 to move inside the device base 1, so that the staff can adjust the displacement seat 3 according to the length of the pulser. After the adjustment is completed, the pulser is placed in the fixed seat 5. By rotating the knob 11, the knob 11 extends the fixed block 12 outward and inward through the transmission disc 10 and the transmission gear 15, so as to facilitate the fixation of pulsers of different sizes, improve the applicability of the device, and can be displaced through the displacement seat 3, so that the staff can test the transmission signal strength of the pulser at different positions. A connecting seat 4 is provided at the rear end of the fixing seat 5. The bottom end of the connecting seat 4 is located on the inner side of the displacement seat 3 and is provided with a mounting groove. The bottom end of the connecting seat 4 extends to the inner side of the mounting groove. A positioning pin 6 is provided on one side of the outer end surface of the displacement seat 3. One end of the positioning pin 6 passes through the displacement seat 3 and the connecting seat 4 and extends to the outside of the displacement seat 3. The fixing seat 5 and the displacement seat 3 can be disassembled and assembled through the positioning pin 6, which is convenient for replacing the displacement seat 3.

[0025] Through the above steps, the problem that when the pulser detection device is used by the staff, the staff need to first use the clamping mechanism to clamp the pulser, and then simulate the working conditions of the mud pulser under different pressures and resistances is solved. However, the existing clamping mechanism is relatively simple and cannot adapt to different types of pulsers, resulting in low utilization of the test bench.

Claims

1. A stroke detection device for a pulse generator, comprising a device base (1); characterized in that: The device also includes a detection screen (2) and a signal detection plate (7) respectively provided at both ends of the top surface of the device base (1); a first displacement slot (8) is provided on the top surface of the device base (1) at the center of the opposing surfaces of the detection screen (2) and the signal detection plate (7); a displacement seat (3) is movably connected to one end of the top surface of the first displacement slot (8); a fixing seat (5) is provided at the top end of the displacement seat (3); second displacement slots (13) are provided at the four ends of the top surface of the fixing seat (5); a fixing block (12) is provided at the top end of the second displacement slot (13); a knob (11) is provided on the top surface of the fixing seat (5) behind the fixing block (12); and the bottom end of the knob (11) extends to the inner side of the fixing seat (5).

2. A stroke detection device for a pulse generator according to claim 1, characterized in that: The rear end of the displacement seat (3) is located inside the device base (1) and is provided with a screw rod (9). One end of the screw rod (9) passes through the displacement seat (3) and extends to the inside of the device base (1). The displacement seat (3) and the screw rod (9) are engaged with each other.

3. A stroke detection device for a pulse generator according to claim 2, characterized in that: One end of the screw rod (9) is located on the inner side of the device base (1) and a servo motor is provided. One end of the screw rod (9) passes through the device base (1) and extends to the output end of one end of the servo motor. The screw rod (9) and the servo motor are connected through a coupling, and the detection screen (2) is electrically connected to the servo motor.

4. The stroke detection device for a pulse generator according to claim 1, characterized in that: The bottom end of the fixed block (12) passes through the second displacement slot (13) and extends to the inner side of the fixed seat (5). A transmission disc (10) is provided below the fixed block (12) and at the bottom end of the inner wall of the fixed seat (5). A transmission gear (15) is provided on the inner wall of the transmission disc (10) and at one side of the bottom end of the fixed block (12). The top end of the transmission gear (15) extends to one side of the fixed block (12).

5. The stroke detection device for a pulse generator according to claim 4, characterized in that: The bottom end of the knob (11) passes through the fixed seat (5) and extends to the outside of the transmission disc (10). Gears are provided at both the upper and lower ends of the transmission gear (15). A rack (14) is provided on one side of the top of the transmission gear (15) and located on one side of the bottom surface of the fixed block (12). The transmission gear (15) and the rack (14) are meshed with each other. The knob (11) is connected to the transmission gear (15) through the transmission disc (10).

6. The stroke detection device for a pulse generator according to claim 1, characterized in that: A connecting seat (4) is provided at the rear end of the fixing seat (5); a mounting groove is provided at the bottom end of the connecting seat (4) located inside the displacement seat (3); the bottom end of the connecting seat (4) extends to the inside of the mounting groove; a positioning pin (6) is provided on one side of the outer end surface of the displacement seat (3); one end of the positioning pin (6) passes through the displacement seat (3) and the connecting seat (4) and extends to the outside of the displacement seat (3).