Device for detecting strength of oil exploitation drill rod

Abstract

The utility model discloses a device for detecting the strength of an oil exploitation drill rod in the related technical field of strength detection technology, which comprises a bottom plate and a protective frame connected with the bottom plate, a gear box is fixedly connected on the bottom plate, a three-stage transmission shaft is arranged on one side of the gear box, and a three-stage transmission shaft is arranged on the other side of the gear box. The other end of the third-stage transmission shaft is connected with a torque sensor through a coupler, and the other end of the torque sensor is connected with a driving motor through the coupler. According to the utility model, through the design of the driving motor, the gear box, the torque sensor and the strain gauge sensor, not only can the strain force of the drill rod main body be detected, but also the applied torque can be accurately controlled, the accuracy of the detection strength is improved, the practicability is stronger, and through the design of the protective frame and the laser sensor, the detection precision is improved. Splashing during fracture of the drill rod body can be prevented, meanwhile, closing of the protective door can be guaranteed, the situation that the device is started when the protective door is not closed is avoided, and safety of the device is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field related to strength detection technology, and in particular relates to a detection device for the strength of a drill pipe used in oil production. Background Art

[0002] The drill rod rotates at high speed to complete the drilling work. The forces on the drill rod during high-speed rotation are relatively complex. Rotational resistance, jumping, and chip removal may all cause the drill rod to break. If the drill rod breaks, the machine needs to be shut down and replaced with a new drill rod. However, for automatically controlled drill rods, the equipment is not controlled by humans. When the drill rod breaks, the workers cannot immediately know that the drill rod breaks. At this time, the drill rod will continue to rotate, affecting the normal operation of the equipment. If the drill rod breaks and the machine is not shut down in time, it is easy to cause chaos in the entire process, especially causing a greater impact on subsequent processes. The drill rod detection device proposed in patent CN201620004601.4 transmits detection light through a light emitting probe and receives the detection light through a light receiving probe. The drill rod is inspected by detecting the light. If the drill rod is intact, it will block the emitted detection light, and the light receiving probe cannot sense the transmitted detection light. If the drill rod is broken, it cannot completely block the detection light, and the light receiving probe can sense the transmitted detection light. Although this patent meets the requirements of use to a certain extent, it was found in actual use that although this design can detect the inside of the drill rod and determine whether there are defects in the drill rod structure, it cannot detect the strength of the drill rod and cannot guarantee that the drill rod can meet the needs of use.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a device for detecting the strength of a drill pipe for oil production. To solve the above technical problem, the basic concept of the technical solution adopted by the present invention is:

[0005] A device for detecting the strength of a drill pipe for oil production comprises a base plate and a protective frame connected thereto, wherein a gear box is fixedly connected to the base plate, a three-stage transmission shaft is provided on one side of the gear box, the other end of the three-stage transmission shaft is connected to a torque sensor via a coupling, the other end of the torque sensor is connected to a drive motor via the coupling, an industrial control box is provided on one side of the drive motor, the industrial control box is fixedly connected to the base plate, a rotating bracket is provided on the other side of the rotating bracket, a rotating sleeve is provided on the other side of the rotating bracket, a drill pipe body is embedded in the other end of the rotating sleeve, a protective frame is provided on the outside of the drill pipe body, the Two protective doors are connected to the protective frame by hinges, and laser sensors are provided at the contact parts of the two protective doors. The protective frame is fixedly connected to the base plate, and a strain gauge sensor is pasted on the drill rod body. The strain gauge sensors are evenly distributed along the circumference and axis of the drill rod body. The gear box plays the role of power transmission, the torque sensor is convenient for detecting torque force, the rotating bracket plays the role of rotating support, and the protective frame plays a protective role. The laser sensor is convenient for detecting whether the protective door is closed, and the strain gauge sensor is convenient for detecting the internal strain force of the drill rod body.

[0006] As a further solution of the present invention: a display screen is provided on the industrial control box, a control keyboard and mouse are provided on the industrial control box, a control box is provided on the side of the drive motor away from the industrial control box, the control box is fixedly connected to the base plate, the display screen and the control keyboard and mouse facilitate human-computer interaction, and the control box facilitates automatic control.

[0007] As a further solution of the present invention: a first-level transmission shaft is connected to the gear box through a bearing seat, a first-level gear is sleeved on the first-level transmission shaft, one side of the first-level gear is meshed with an earphone gear, the second-level gear is sleeved on the second-level transmission shaft, and the second-level transmission shaft is connected to the gear box through the bearing seat, the first-level gear and the second-level gear play the role of power transmission, and the first-level transmission shaft and the second-level transmission shaft play the role of rotation support.

[0008] As a further solution of the present invention: one side of the secondary gear is meshedly connected with a third-stage gear, the third-stage gear is sleeved on the third-stage transmission shaft, the third-stage transmission shaft is connected to the gear box through the bearing seat, the third-stage gear plays a role of power transmission, and the third-stage transmission shaft plays a role of rotation support.

[0009] As a further solution of the present invention: a fixed sleeve is provided on one end of the drill rod body away from the rotating sleeve, and the other end of the fixed sleeve is fixedly connected to a fixed bracket, and the fixed bracket is fixedly connected to the base plate. The fixed sleeve and the fixed bracket play a role of stable support.

[0010] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art.

[0011] The utility model, through the design of the driving motor, gear box, torque sensor and strain gauge sensor, can not only detect the strain force of the drill rod body, but also accurately control the applied torque, thereby improving the accuracy of the detection strength and having strong practicality.

[0012] The utility model, through the design of the protective frame and the laser sensor, can not only prevent splashing when the drill rod body breaks, but also ensure the closure of the protective door, avoid starting the device when the protective door is not closed, and ensure the safety of the device.

[0013] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are part of this application and are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is the main view of the utility model;

[0017] Figure 3 It is a side view of the utility model;

[0018] Figure 4 It is a top view of the utility model;

[0019] Figure 5 This is a schematic diagram of the installation of the strain gauge sensor of the present invention;

[0020] Figure 6 This is the control block diagram of the utility model.

[0021] In the figure: 1. Base plate; 2. Protective door; 3. Laser sensor; 4. Protective frame; 5. Gear box; 6. Industrial control box; 7. Control keyboard and mouse; 8. Display screen; 9. Drive motor; 10. Control box; 11. Hinge; 12. Bearing seat; 13. Primary transmission shaft; 14. Primary gear; 15. Rotating bracket; 16. Rotating sleeve; 17. Drill pipe body; 18. Fixed sleeve; 19. Fixed bracket; 20. Tertiary transmission shaft; 21. Coupling; 22. Torque sensor; 23. Secondary gear; 24. Secondary transmission shaft; 25. Tertiary gear; 26. Strain gauge sensor.

[0022] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0024] like Figures 1 to 6 As shown, a device for detecting the strength of a drill pipe for oil production includes a base plate 1 and a protective frame 4 connected thereto. A gear box 5 is fixedly connected to the base plate 1. A three-stage transmission shaft 20 is provided on one side of the gear box 5. The other end of the three-stage transmission shaft 20 is connected to a torque sensor 22 through a coupling 21. The other end of the torque sensor 22 is connected to a drive motor 9 through a coupling 21. An industrial control box 6 is provided on one side of the drive motor 9. The industrial control box 6 is fixedly connected to the base plate 1. A rotating bracket 15 is provided on the other side of the gear box 5. A rotating sleeve 16 is provided on the other side of the rotating bracket 15. A drill pipe body 17 is embedded in the other end of the rotating sleeve 16. The outer side of the drill pipe body 17 A protective frame 4 is provided, and two protective doors 2 are connected to the protective frame 4 through hinges 11. A laser sensor 3 is provided at the contact position of the two protective doors 2. The protective frame 4 is fixedly connected to the base plate 1. A strain gauge sensor 26 is pasted on the drill rod body 17. The strain gauge sensor 26 is evenly distributed along the circumference and axis of the drill rod body 17. The gear box 5 plays the role of power transmission, the torque sensor 22 is convenient for detecting torque force, the rotating bracket 15 plays the role of rotating support, and the protective frame 4 plays a protective role. The laser sensor 3 is convenient for detecting whether the protective door 2 is closed, and the strain gauge sensor 26 is convenient for detecting the internal strain force of the drill rod body 17.

[0025] Among them, a display screen 8 is provided on the industrial control box 6, a control keyboard and mouse 7 is provided on the industrial control box 6, a control box 10 is provided on the side of the drive motor 9 away from the industrial control box 6, and the control box 10 is fixedly connected to the base plate 1. The display screen 8 and the control keyboard and mouse 7 facilitate human-computer interaction, and the control box 10 facilitates automatic control.

[0026] A first-stage transmission shaft 13 is connected to the gear box 5 through a bearing seat 12, and a first-stage gear 14 is sleeved on the first-stage transmission shaft 13. One side of the first-stage gear 14 is meshed with an earphone gear. The second-stage gear 23 is sleeved on the second-stage transmission shaft 24, and the second-stage transmission shaft 24 is connected to the gear box 5 through the bearing seat 12. The first-stage gear 14 and the second-stage gear 23 play the role of power transmission, and the first-stage transmission shaft 13 and the second-stage transmission shaft 24 play the role of rotation support.

[0027] One side of the secondary gear 23 is meshed with a tertiary gear 25, which is sleeved on the tertiary transmission shaft 20. The tertiary transmission shaft 20 is connected to the gear box 5 through the bearing seat 12. The tertiary gear 25 plays a role in power transmission, and the tertiary transmission shaft 20 plays a role in rotation support.

[0028] A fixed sleeve 18 is provided on one end of the drill rod body 17 away from the rotating sleeve 16. The other end of the fixed sleeve 18 is fixedly connected to a fixed bracket 19. The fixed bracket 19 is fixedly connected to the base plate 1. The fixed sleeve 18 and the fixed bracket 19 play a role of stable support.

[0029] The working principle of the utility model is as follows: when in use, the protective door 2 is opened, the drill rod body 17 is installed on the rotating sleeve 16 and the fixed sleeve 18, the protective door 2 is closed, the device is started through the industrial control box 6, the laser sensor 3 works, and detects that the protective door 2 is closed, and transmits the signal to the control box 10. The control box 10 controls the drive motor 9 to work, and transmits the power to the drill rod body 17 through the transmission of the three-stage gear 25, the two-stage gear 23 and the first-stage gear 14. The drill rod body 17 gradually deforms under the action of the torque until it breaks. In this process, the torque sensor 22 and the strain gauge sensor 26 transmit the detected signal to the industrial control box 6, and the industrial control box 6 processes, analyzes and stores the signal, and converts it into a graphic signal, which is displayed on the display screen. 8 is displayed. During the torque application process, the user can also manually control and adjust the applied torque of the drive motor 9 by operating the keyboard and mouse 7, and can call up and view the relevant parameters. The novel structure of the present invention is reasonably designed and easy to install and use. Through the design of the drive motor 9, the gear box 5, the torque sensor 22 and the strain gauge sensor 26, not only the strain force of the drill rod body 17 can be detected, but also the applied torque can be accurately controlled, thereby improving the accuracy of the detection intensity and having strong practicality. Through the design of the protective frame 4 and the laser sensor 3, not only can splashing when the drill rod body 17 breaks be prevented, but also the closing of the protective door 2 can be ensured, and the device can be avoided from being started when the protective door 2 is not closed, thereby ensuring the safety of the device.

[0030] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above-mentioned technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A device for detecting the strength of a drill pipe for oil production, comprising a base plate (1) and a protective frame (4) connected thereto, characterized in that: A gear box (5) is fixedly connected to the base plate (1), a three-stage transmission shaft (20) is provided on one side of the gear box (5), the other end of the three-stage transmission shaft (20) is connected to a torque sensor (22) via a coupling (21), the other end of the torque sensor (22) is connected to a drive motor (9) via the coupling (21), an industrial control box (6) is provided on one side of the drive motor (9), the industrial control box (6) is fixedly connected to the base plate (1), a rotating bracket (15) is provided on the other side of the gear box (5), the other end of the rotating bracket (15) is connected to the A rotating sleeve (16) is provided on one side of the drill rod body (17), and a drill rod body (17) is embedded in the other end of the rotating sleeve (16). A protective frame (4) is provided on the outside of the drill rod body (17). Two protective doors (2) are connected to the protective frame (4) through a hinge (11). Laser sensors (3) are provided at the contact parts of the two protective doors (2). The protective frame (4) is fixedly connected to the bottom plate (1). A strain gauge sensor (26) is adhered to the drill rod body (17), and the strain gauge sensor (26) is evenly distributed along the circumference and axis of the drill rod body (17).

2. The device for detecting the strength of a drill pipe for oil production according to claim 1, characterized in that: The industrial control box (6) is provided with a display screen (8), and the industrial control box (6) is provided with a control keyboard and mouse (7). A control box (10) is provided on the side of the drive motor (9) away from the industrial control box (6), and the control box (10) is fixedly connected to the base plate (1).

3. The device for detecting the strength of a drill pipe for oil production according to claim 1, characterized in that: A primary transmission shaft (13) is connected to the gearbox (5) via a bearing seat (12); a primary gear (14) is sleeved on the primary transmission shaft (13); a headphone gear is meshedly connected to one side of the primary gear (14); the secondary gear (23) is sleeved on the secondary transmission shaft (24); and the secondary transmission shaft (24) is connected to the gearbox (5) via the bearing seat (12).

4. The device for detecting the strength of a drill pipe for oil production according to claim 3, characterized in that: One side of the secondary gear (23) is meshedly connected with a tertiary gear (25), the tertiary gear (25) is sleeved on the tertiary transmission shaft (20), and the tertiary transmission shaft (20) is connected to the gear box (5) via the bearing seat (12).

5. The device for detecting the strength of a drill pipe for oil production according to claim 1, characterized in that: One end of the drill rod body (17) away from the rotating sleeve (16) is sleeved with a fixed sleeve (18), and the other end of the fixed sleeve (18) is fixedly connected to a fixed bracket (19), and the fixed bracket (19) is fixedly connected to the base plate (1).

Images