Remote scale control device for density logging instrument

Abstract

The invention relates to the technical field of oil exploration and development, in particular to a density logging instrument scale remote control device. The device comprises an instrument movement assembly, an instrument locking and rotating assembly, an instrument jacking control assembly, a magnesium plate movement assembly, a steel plate movement assembly and a control system. The invention realizes the remote control of the density logging instrument scale, improves the working precision, reduces the radioactive source contact time of workers, and reduces the radiation injury.

Description

Technical Field:

[0001] The present invention relates to the technical field of oil exploration and development, and particularly relates to a remote control device for calibrating a density logging instrument. Background Art:

[0002] When calibrating a litho-density instrument, it is required that the instrument probe, radiation source, calibration block, and calibration slice are longitudinally parallel and transversely coplanar, and are in tight contact during counting measurement. The practice recommended by the instrument design and manufacturing manufacturer is to vertically place the instrument for calibration. However, due to the conditions of the calibration workshop and the difficulty in developing and arranging the calibration auxiliary equipment, horizontal calibration is also permitted by the instrument manufacturer. Therefore, in daily use, the horizontal placement method is adopted.

[0003] The litho-density instrument is a radioactive logging instrument. When the instrument is operating normally, a Cs137 gamma source needs to be installed. During calibration, the same radiation source as during logging needs to be installed to ensure the accuracy of the measurement. During the calibration process, operations such as repeatedly pressurizing and depressurizing the calibration device and loading and unloading the calibration reference object are required, and the instrument needs to be calibrated once a month. As a result, the operator is exposed to a large dose of ionizing radiation environment for a long time, posing a serious threat and harm to the health of the personnel. Manual operation, unreasonable design of the calibration device, and poor tight contact between the radiation source and the object to be measured will all cause deviations in the measurement results. Moreover, if the height or force of the front and rear brackets is inconsistent when the instrument is 3 - 5 meters long, the instrument will tilt, resulting in poor tight contact between the instrument and the object to be measured, and also causing deviations in the measurement results. Summary of the Invention:

[0004] The technical problem to be solved by the present invention is to provide a remote control device for calibrating a density logging instrument, which realizes remote control of the calibration of the density logging instrument, improves the working accuracy, reduces the time for the staff to contact the radiation source, and reduces the radiation damage.

[0005] The technical solution adopted by the present invention is: a remote control device for calibrating a density logging instrument, including a density logging instrument, an aluminum block, and a magnesium block arranged in sequence. It is characterized in that it further includes:

[0006] An instrument movement assembly, the instrument movement assembly includes a support mechanism, a lifting mechanism, and a horizontal movement mechanism. The support mechanism supports and positions the density logging instrument. The lifting mechanism can control the lifting of the support mechanism, and the horizontal movement mechanism can control the left - right movement of the support mechanism;

[0007] An instrument locking and rotating assembly, the instrument locking and rotating assembly can lock the density logging instrument together with the support mechanism and can rotate the density logging instrument to the required angle;

[0008] Instrument Tightening Control Assembly. The Instrument Tightening Control Assembly includes a mounting frame for mounting aluminum blocks and magnesium blocks. The aluminum blocks and magnesium blocks are provided with through channels for the density logging instrument to enter. On both sides and in the middle of the aluminum blocks and magnesium blocks, auxiliary horizontal lifting mechanisms are respectively provided to support and lift the density logging instrument. The lower parts of the aluminum blocks and magnesium blocks are open, and at the above openings, tightening mechanisms are respectively provided to tightly push the density logging instrument upward;

[0009] Magnesium Plate Movement Assembly. The magnesium plate is movably connected to the magnesium plate movement assembly, and the magnesium plate movement assembly can control the movement of the magnesium plate into the aluminum block;

[0010] Steel Plate Movement Assembly. The steel plate is movably connected to the steel plate movement assembly, and the steel plate movement assembly can control the movement of the steel plate into the magnesium block;

[0011] Control System. The control system includes a control cabinet and a remote control room. The control cabinet receives video information transmitted by industrial cameras and video monitoring devices at the density logging instrument calibration site. The control cabinet controls the movement of the density logging instrument movement assembly, instrument locking and rotating assembly, tightening control assembly, magnesium plate movement assembly, and steel plate movement assembly. The remote control room is connected to the control cabinet through an optical cable and controls the control cabinet.

[0012] Further, the density logging instrument movement assembly includes an auxiliary support combination. The auxiliary support combination includes a movable support, auxiliary support I provided on the horizontal movement mechanism, and auxiliary support II provided on the mounting frame. The movable support, auxiliary support I, and auxiliary support II all include an auxiliary support frame body and a support seat provided at the upper end of the auxiliary support frame body. The support seat can support the density logging instrument. A moving wheel is installed at the bottom of the auxiliary support frame body of the movable support.

[0013] Further, the support mechanism includes a follower bottom plate. Two follower nylon wheels are installed on the follower bottom plate. The density logging instrument is placed between the two follower nylon wheels. When the density logging instrument rotates, the two follower nylon wheels rotate with the density logging instrument.

[0014] Further, the lifting mechanism includes a servo electric cylinder. The output end of the servo electric cylinder is connected to the support mechanism and can drive the support mechanism to perform lifting movement.

[0015] Further, the horizontal movement mechanism includes an instrument movement servo motor, an instrument movement lead screw, and a horizontal movement base. The instrument movement servo motor drives the instrument movement lead screw. The instrument movement lead screw nut is connected to the horizontal movement base. The lifting mechanism and the instrument locking and rotating assembly are provided at the upper end of the horizontal movement base.

[0016] Furthermore, the instrument locking and rotating assembly includes a pressing and rotating mechanism, a rotating servo motor, and a pressing oil cylinder. The pressing and rotating mechanism includes a lower support pressing plate, with a rotating servo motor arranged at the upper end of the lower support pressing plate. Two power nylon wheels are installed at the lower part of the lower support pressing plate. The output end of the pressing oil cylinder is connected to the lower support pressing plate and can drive the pressing and rotating mechanism to perform lifting motion. The transmission shaft of the rotating servo motor is respectively connected to the two power nylon wheels through belts and can drive the two power nylon wheels to rotate synchronously.

[0017] Furthermore, the auxiliary horizontal lifting mechanism includes a horizontal oil cylinder. The upper end of the output end of the horizontal oil cylinder is connected to a horizontal support seat, and the horizontal oil cylinder can drive the horizontal support seat to perform lifting motion.

[0018] Furthermore, the tightening mechanism includes a tightening oil cylinder. The upper end of the output end of the tightening oil cylinder is connected to a tightening plug body, and the tightening oil cylinder can drive the tightening plug body to perform lifting motion.

[0019] Furthermore, the magnesium plate movement assembly has the same structure as the steel plate movement assembly. The steel plate movement assembly includes a plate movement servo motor, a plate lead screw, and a plate connection frame. The plate movement servo motor drives the plate lead screw, and the nut of the plate lead screw is connected to the plate connection frame. A vertical channel is provided in the plate connection frame, and a vertical guide rod is arranged in this vertical channel. A buffer spring is sleeved at the lower end of the vertical guide rod. A plate fixing plate is installed on the vertical guide rod and can move up and down along the vertical guide rod. The plate fixing plate is connected to the steel plate.

[0020] Furthermore, the instrument movement assembly is arranged on an instrument movement base, the magnesium plate movement assembly is arranged on a magnesium plate movement base, and the steel plate movement assembly is arranged on a steel plate movement base.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. By adopting modern intelligent control technology, remote control is realized, the working precision is improved, the time for staff to contact the radiation source is reduced, and the radiation damage is alleviated.

[0023] 2. Multiple auxiliary supports and movable supports are added, which can be applicable to instrument scales of different lengths.

[0024] 3. By using multiple auxiliary horizontal lifting mechanisms, the instrument is balanced on the same horizontal plane, preventing the instrument from tilting left and right, ensuring that the instrument fits closely with the object to be measured, and improving the scale precision.

[0025] 4. The rotation of the instrument can be controlled to make the instrument probe vertically upward, and the instrument probe fits closely with the object to be measured, improving the scale precision. Description of the Drawings:

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Figure 1 It is a schematic structural diagram of the present invention.

[0028] Figure 2 It is a schematic structural diagram of an industrial camera, a hydraulic system, a control cabinet, and a remote control room.

[0029] Figure 3 It is a schematic structural diagram of an instrument locking and rotating assembly.

[0030] Figure 4 It is a schematic structural diagram of a steel plate movement assembly. Specific embodiments:

[0031] As Figure 1 shown, a remote control device for calibrating a density logging instrument includes a density logging instrument 6, an aluminum block 11, and a magnesium block 13 arranged in sequence, and further includes:

[0032] An instrument movement assembly, the instrument movement assembly includes a support mechanism, a lifting mechanism, and a horizontal movement mechanism. The support mechanism supports and positions the density logging instrument 6. The lifting mechanism can control the lifting of the support mechanism, and the horizontal movement mechanism can control the left and right movement of the support mechanism;

[0033] An instrument locking and rotating assembly, the instrument locking and rotating assembly can lock the density logging instrument 6 together with the support mechanism and can rotate the density logging instrument 6 to a required angle;

[0034] An instrument pressing control assembly, the instrument pressing control assembly includes a mounting frame for mounting the aluminum block 11 and the magnesium block 13. The aluminum block 11 and the magnesium block 13 are provided with through channels for the density logging instrument 6 to enter. Auxiliary horizontal lifting mechanisms 10 capable of supporting and lifting the density logging instrument 6 are respectively arranged on both sides and in the middle of the aluminum block 11 and the magnesium block 13. The lower parts of the aluminum block 11 and the magnesium block 13 are open, and pressing mechanisms capable of pressing the density logging instrument 6 upward are respectively arranged at the above openings;

[0035] A magnesium plate movement assembly 23, the magnesium plate movement assembly 23 is movably connected to a magnesium plate 8 and can control the movement of the magnesium plate 8 into the aluminum block 11;

[0036] A steel plate movement assembly 16, the steel plate movement assembly 16 is movably connected to a steel plate 15 and can control the movement of the steel plate 15 into the magnesium block 13;

[0037] As Figure 2As shown, a control system, the control system includes a control cabinet 34 and a remote control room 35. The control cabinet 34 receives video information transmitted by an industrial camera 32 and a video monitoring device at the site of the density logging instrument calibration. The control cabinet 34 controls the movement assemblies of the density logging instrument, the instrument locking and rotating assembly, the pressing control assembly, the magnesium plate movement assembly 23, and the steel plate movement assembly 16. The remote control room 35 is connected to the control cabinet 34 through an optical cable and controls the control cabinet 34.

[0038] The movement assembly of the density logging instrument includes an auxiliary support combination. The auxiliary support combination includes a movable support 1, an auxiliary support I 7 provided on a horizontal movement mechanism, and an auxiliary support II 9 provided on a mounting frame. The movable support 1, the auxiliary support I 7, and the auxiliary support II 9 all include an auxiliary support frame body and a support seat provided at the upper end of the auxiliary support frame body. The support seat can support the density logging instrument 6. A moving wheel is installed at the bottom of the auxiliary support frame body of the movable support 1.

[0039] The support mechanism includes a follower bottom plate. Two follower nylon wheels 18 are installed on the follower bottom plate. The density logging instrument 6 is placed between the two follower nylon wheels 18. When the density logging instrument 6 rotates, the two follower nylon wheels 18 rotate with the density logging instrument 6.

[0040] The lifting mechanism includes a servo electric cylinder 19. The output end of the servo electric cylinder 19 is connected to the support mechanism and can drive the support mechanism to perform lifting movement.

[0041] The horizontal movement mechanism includes an instrument movement servo motor 17, an instrument movement lead screw 21, and a horizontal movement base 20. The instrument movement servo motor 17 drives the instrument movement lead screw 21. The nut of the instrument movement lead screw 21 is connected to the horizontal movement base 20. The lifting mechanism, the instrument locking and rotating assembly, and the auxiliary support I 7 are provided at the upper end of the horizontal movement base 20.

[0042] As Figure 3 As shown, the instrument locking and rotating assembly includes a pressing and rotating mechanism, a rotating servo motor 3, and a pressing oil cylinder 4. The pressing and rotating mechanism includes a lower support pressing plate 12. The rotating servo motor 3 is provided at the upper end of the lower support pressing plate 12. Two power nylon wheels 5 are installed at the lower part of the lower support pressing plate 12. The output end of the pressing oil cylinder 4 is connected to the lower support pressing plate 12 and can drive the pressing and rotating mechanism to perform lifting movement. The rotating servo motor transmission shaft 14 is respectively connected to the two power nylon wheels 5 through belts 27 and can drive the two power nylon wheels 5 to rotate synchronously.

[0043] The auxiliary horizontal lifting mechanism 10 includes a horizontal oil cylinder 25. The upper end of the output end of the horizontal oil cylinder 25 is connected to a horizontal support seat. The horizontal oil cylinder 25 can drive the horizontal support seat to perform lifting movement.

[0044] The tightening mechanism includes a tightening oil cylinder 26. The upper end of the output end of the tightening oil cylinder 26 is connected to a tightening plug body, and the tightening oil cylinder 26 can drive the tightening plug body to move up and down.

[0045] As Figure 4 shown, the magnesium plate movement assembly 23 has the same structure as the steel plate movement assembly 16. The steel plate movement assembly 16 includes a plate movement servo motor 22, a plate lead screw 24, and a plate connection frame body 31. The plate movement servo motor 22 drives the plate lead screw 24, and the nut of the plate lead screw 24 is connected to the plate connection frame body 31. The plate connection frame body 31 is provided with a vertical channel, and a vertical guide rod 29 is arranged in the vertical channel. A buffer spring 30 is sleeved at the lower end of the vertical guide rod 29. A plate fixing plate 28 is installed on the vertical guide rod 29 and can move up and down along the vertical guide rod 29. The plate fixing plate 28 is connected to the steel plate 15.

[0046] The instrument movement assembly is arranged on the instrument movement base 2, the magnesium plate movement assembly is arranged on the magnesium plate movement base, and the steel plate movement assembly is arranged on the steel plate movement base.

[0047] The density logging tool 6 can be placed on the movable support 1, the auxiliary support I 7, and the auxiliary support II 9. The movable support 1 can move left and right to accommodate density logging tools 6 of different lengths.

[0048] The staff can load the radiation source into the density logging tool 6 and then evacuate the calibration workshop. The staff can operate the control cabinet 34 in the remote control room 35 and perform the calibration operation of the tool with the assistance of the industrial camera 32 and the video monitoring equipment, thereby reducing the time for the staff to contact the radiation source and reducing the radiation damage.

[0049] During use, the servo electric cylinder 19 controls the up and down movement of the two follower nylon wheels 18, and the pressing oil cylinder 4 controls the two power nylon wheels 5 to press down on the density logging tool 6. Together with the follower nylon wheels 18, the density logging tool 6 can be locked. The rotary servo motor 3 drives the power nylon wheels 5 to rotate, so that the locked density logging tool 6 rotates, adjusting the angle of the density logging tool 6. With the precise discrimination by the industrial camera 32, the probe of the density logging tool 6 is vertically upward, so that the probe of the density logging tool 6 fits more closely with the object to be measured, increasing the calibration accuracy.

[0050] The calibration of the density logging tool 6 is divided into four steps:

[0051] Calibration Step 1: The instrument movement servo motor 17 drives the instrument movement lead screw 21, thereby driving the density logging instrument 6 to move to the right, sending the density logging instrument 6 into the aluminum block 11 and ensuring that the probe position of the density logging instrument 6 is within the aluminum block 11. Operate the auxiliary horizontal lifting mechanism 10 on the left side of the aluminum block 11 to move upward and the auxiliary horizontal lifting mechanism 10 in the middle to move upward according to the position of the tail of the density logging instrument 6, control the servo cylinder 19 to move the follower nylon wheel 18 upward, so that the density logging instrument 6 closely adheres to the inner wall of the aluminum block 11, and keep the density logging instrument 6 horizontal left and right, increasing the calibration accuracy of the density logging instrument 6. Control the jacking mechanism in the aluminum block 11 to jack up the density logging instrument 6, so that the probe of the density logging instrument 6 fits tightly against the inner wall of the aluminum block 11, increasing the calibration accuracy.

[0052] Calibration Step 2: After completing Step 1, release the pressure of the jacking mechanism in the aluminum block 11, the auxiliary horizontal lifting mechanism 10 on the left side of the aluminum block 11 and the auxiliary horizontal lifting mechanism 10 in the middle. After the density logging instrument 6 falls downward, operate the plate movement servo motor 22 of the magnesium plate movement assembly 23 to drive the plate lead screw 24, thereby driving the magnesium plate 8 to move to the right, sending the magnesium plate 8 into the aluminum block 11, in the middle between the density logging instrument 6 and the inner wall of the aluminum block 11. Operate the auxiliary horizontal lifting mechanism 10 on the left side of the aluminum block 11 to move upward and the auxiliary horizontal lifting mechanism 10 in the middle to move upward, control the servo cylinder 19, adjust the position of the follower nylon wheel 18, so that the density logging instrument 6 closely adheres to the magnesium plate 8, the magnesium plate 8 closely adheres to the inner wall of the aluminum block 11, and keep the density logging instrument 6 horizontal left and right, increasing the calibration accuracy of the instrument. Control the jacking mechanism in the aluminum block 11 to jack up the density logging instrument 6, so that the probe of the density logging instrument 6, the magnesium plate 8 and the inner wall of the aluminum block 11 fit tightly together, increasing the calibration accuracy.

[0053] Calibration Step 3: After completing Step 2, release the pressure of the jacking mechanism in the aluminum block 11, the auxiliary horizontal lifting mechanism 10 on the left side of the aluminum block 11 and the auxiliary horizontal lifting mechanism 10 in the middle. After the density logging instrument 6 falls downward, operate the plate movement servo motor 22 of the magnesium plate movement assembly 23 to drive the plate lead screw 24, thereby driving the magnesium plate 8 to move to the left and move it outside the aluminum block 11. Control the instrument movement servo motor 17 to drive the instrument movement lead screw 21, thereby driving the density logging instrument 6 to continue moving to the right, sending the density logging instrument 6 into the magnesium block 13 and ensuring that the probe position of the density logging instrument 6 is within the magnesium block 13. Operate the auxiliary horizontal lifting mechanism 10 in the middle to move upward and the auxiliary horizontal lifting mechanism 10 on the right side of the magnesium block 13 to move upward, control the servo cylinder 19 to move the follower nylon wheel 18 upward, so that the density logging instrument 6 closely adheres to the inner wall of the magnesium block 13, and keep the density logging instrument 6 horizontal left and right, increasing the calibration accuracy of the instrument. Control the jacking mechanism in the magnesium block 13 to jack up the density logging instrument 6, so that the probe of the density logging instrument 6 fits tightly against the inner wall of the magnesium block 13, increasing the calibration accuracy.

[0054] Scale Step 4: After completing Step 3, release the pressure of the clamping mechanism inside the magnesium block 13, the auxiliary horizontal lifting mechanism 10 in the middle, and the auxiliary horizontal lifting mechanism 10 on the right side of the magnesium block 13. After the density logging tool 6 drops down, operate the plate movement servo motor 22 of the steel plate movement assembly 16 to drive the plate lead screw 24, and then drive the steel plate 15 to move leftward, send the steel plate 15 into the magnesium block 13, and place it between the density logging tool 6 and the inner wall of the magnesium block 13. Operate the auxiliary horizontal lifting mechanism 10 in the middle to move upward and operate the auxiliary horizontal lifting mechanism 10 on the right side of the magnesium block 13 to move upward, control the servo cylinder 19 to adjust the position of the follower nylon wheel 18, so that the density logging tool 6 is closely attached to the steel plate 15, the steel plate 15 is closely attached to the inner wall of the magnesium block 13, and keep the density logging tool 6 horizontal left and right, increasing the calibration accuracy of the instrument. Control the clamping mechanism inside the magnesium block 13 to push up the density logging tool 6, so that the probe of the density logging tool 6, the steel plate 15, and the inner wall of the magnesium block 13 are closely attached to each other, increasing the calibration accuracy.

[0055] After completing Step 4, release the pressure of the clamping mechanism inside the magnesium block 13, the auxiliary horizontal lifting mechanism 10 in the middle, and the auxiliary horizontal lifting mechanism 10 on the right side of the magnesium block 13. After the density logging tool 6 drops down, operate the plate movement servo motor 22 of the steel plate movement assembly 16 to drive the plate lead screw 24, and then drive the steel plate 15 to move rightward, so that the steel plate 15 moves outside the magnesium block 13. Control the instrument movement servo motor 17 to drive the instrument movement lead screw 21, and then drive the density logging tool 6 to move leftward, so that the density logging tool 6 moves out of the magnesium block 13 and the aluminum block 11; control the pressing oil cylinder 4 to move the power nylon wheel 5 upward, control the servo cylinder 19 to move the follower nylon wheel 18 downward, so that the density logging tool 6 falls on the movable support 1 and the auxiliary support I 7.

[0056] The calibration of the density logging tool 6 is all completed, fully realizing remote control, improving the working accuracy at the same time, reducing the time for staff to contact the radiation source, and reducing radiation damage.

[0057] All the oil cylinders involved in the present invention are connected to the hydraulic system 33 through hydraulic pipelines, and the hydraulic system 33 is connected to the control cabinet 34 through cables; all the servo motors and electric cylinders are connected to the control cabinet 34 through cables, and all the oil cylinders or servo motors can be controlled through the control cabinet 34.

[0058] The control cabinet 34 is connected to the remote control room 35 through an optical cable, and the control cabinet 34 can be operated in the remote control room 35 to perform the calibration operation of the density logging tool 6, reducing the time for staff to contact the radiation source and reducing radiation damage.

[0059] The industrial camera 32 and cameras at multiple angles are connected to the control cabinet 34 through cables. The industrial camera 32 can accurately determine whether the probe of the density logging instrument 6 is vertically upward when the density logging instrument 6 rotates; through the cameras at multiple angles, the calibration process can be monitored in the remote control room 35 to timely adjust the operation errors in calibration.

[0060] It can be understood that the above specific description of the present invention is only for explaining the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effects; as long as the use requirements are met, they are all within the protection scope of the present invention.

Claims

1. A remote control device for calibrating a density logging instrument, comprising a density logging instrument, an aluminum block, and a magnesium block arranged in sequence, characterized in that: It further includes: An instrument movement assembly, which includes a support mechanism, a lifting mechanism, and a horizontal movement mechanism. The support mechanism supports and positions the density logging instrument. The lifting mechanism can control the lifting of the support mechanism, and the horizontal movement mechanism can control the left and right movement of the support mechanism; An instrument locking and rotating assembly, which can lock the density logging instrument together with the support mechanism and can rotate the density logging instrument to the required angle; An instrument pressing control assembly, which includes a mounting frame body for mounting aluminum blocks and magnesium blocks. The aluminum blocks and magnesium blocks are provided with through channels for the density logging instrument to enter. Auxiliary horizontal lifting mechanisms capable of supporting and lifting the density logging instrument are respectively arranged on both sides and in the middle of the aluminum blocks and magnesium blocks. The lower parts of the aluminum blocks and magnesium blocks are open, and pressing mechanisms capable of pressing the density logging instrument upward are respectively arranged at the above openings; A magnesium plate movement assembly, on which a magnesium plate is movably connected and can control the movement of the magnesium plate into the aluminum block; A steel plate movement assembly, on which a steel plate is movably connected and can control the movement of the steel plate into the magnesium block; A control system, which includes a control cabinet and a remote control room. The control cabinet receives video information transmitted by industrial cameras and video monitoring devices at the density logging instrument calibration site, and the control cabinet controls the movement of the density logging instrument movement assembly, the instrument locking and rotating assembly, the pressing control assembly, the magnesium plate movement assembly, and the steel plate movement assembly. The remote control room is connected to the control cabinet through an optical cable and controls the control cabinet.

2. The density logging tool calibration remote control device according to claim 1, characterized in that: The density logging instrument movement assembly includes an auxiliary support combination, which includes a movable support, an auxiliary support I arranged on the horizontal movement mechanism, and an auxiliary support II arranged on the mounting frame body; The movable support, the auxiliary support I, and the auxiliary support II all include an auxiliary support frame body and a support seat arranged at the upper end of the auxiliary support frame body. The support seat can support the density logging instrument; a moving wheel is installed at the bottom of the auxiliary support frame body of the movable support.

3. The density logging tool calibration remote control device according to claim 1, characterized in that: The support mechanism includes a follower bottom plate, on which two follower nylon wheels are installed. The density logging instrument is placed between the two follower nylon wheels, and the two follower nylon wheels rotate with the density logging instrument when the density logging instrument rotates.

4. The remote control device for calibrating a density logging instrument according to claim 1, characterized in that: The lifting mechanism includes a servo electric cylinder, and the output end of the servo electric cylinder is connected to the support mechanism and can drive the support mechanism to perform lifting motion.

5. The remote control device for calibrating a density logging instrument according to claim 1, characterized in that: The horizontal movement mechanism includes an instrument movement servo motor, an instrument movement lead screw, and a horizontal movement base. The instrument movement servo motor drives the instrument movement lead screw, the instrument movement lead screw nut is connected to the horizontal movement base, and the lifting mechanism and the instrument locking and rotating assembly are arranged at the upper end of the horizontal movement base.

6. The remote control device for calibrating a density logging instrument according to claim 1, characterized in that: The instrument locking and rotating assembly includes a pressing and rotating mechanism, a rotating servo motor, and a pressing oil cylinder. The pressing and rotating mechanism includes a lower support pressing plate, on the upper end of which the rotating servo motor is arranged, and two power nylon wheels are installed at the lower part of the lower support pressing plate. The output end of the pressing oil cylinder is connected to the lower support pressing plate and can drive the pressing and rotating mechanism to perform a lifting motion. The transmission shaft of the rotating servo motor is respectively connected to the two power nylon wheels through belts and can drive the two power nylon wheels to rotate synchronously.

7. The remote control device for calibrating a density logging instrument according to claim 1, wherein: The auxiliary horizontal lifting mechanism includes a horizontal oil cylinder, the upper end of the output end of which is connected to a horizontal support seat, and the horizontal oil cylinder can drive the horizontal support seat to perform a lifting motion.

8. The density logging tool calibration remote control device according to claim 1, characterized in that: The tightening mechanism includes a tightening oil cylinder, the upper end of the output end of which is connected to a tightening plug body, and the tightening oil cylinder can drive the tightening plug body to perform a lifting motion.

9. The remote control device for calibrating a density logging instrument according to claim 1, characterized in that: The magnesium plate movement assembly has the same structure as the steel plate movement assembly. The steel plate movement assembly includes a plate movement servo motor, a plate lead screw, and a plate connecting frame body. The plate movement servo motor drives the plate lead screw, and the nut of the plate lead screw is connected to the plate connecting frame body; a vertical channel is arranged on the plate connecting frame body, a vertical guide rod is arranged in the vertical channel, a buffer spring is sleeved at the lower end of the vertical guide rod, and a plate fixing plate is installed on the vertical guide rod and can move up and down along the vertical guide rod, and the plate fixing plate is connected to the steel plate.

10. The density logging tool calibration remote control device according to claim 1, characterized in that: The instrument movement assembly is arranged on an instrument movement base, the magnesium plate movement assembly is arranged on a magnesium plate movement base, and the steel plate movement assembly is arranged on a steel plate movement base.

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