Scale calibration device of density logging instrument

Abstract

The utility model relates to a scale calibration device of a density logging instrument, and belongs to the technical field of scale calibration of density logging instruments. The embodiment of the utility model provides a scale calibration device of a density logging instrument. The scale calibration device comprises a scale insertion piece assembly and a scale barrel assembly. The scale insertion piece assembly comprises a scale insertion piece, a first lifting assembly and a first translation assembly. The scale insertion piece is connected with the first lifting assembly. The first lifting assembly can drive the scale insertion piece to ascend and descend in the first direction. The first lifting assembly is connected with the first translation assembly, and the first translation assembly can drive the first lifting assembly to move in the second direction. The first direction intersects the second direction. The scale barrel assembly and the scale insertion piece assembly are arranged at intervals in the second direction. The scale barrel assembly comprises a scale barrel and a second lifting assembly connected with the scale barrel. The second lifting assembly can drive the scale barrel to ascend and descend in the first direction.

Description

Technical Field

[0001] This utility model relates to the field of calibration technology for density logging instruments, and particularly to a calibration device for density logging instruments. Background Technology

[0002] Calibration of density logging instruments is a crucial step in ensuring measurement accuracy. Currently, the calibration process involves manually inserting a probe into a magnesium or aluminum container. Because the radiation source used in the calibration process is radioactive, workers face the risk of radiation exposure while inserting the probe. Utility Model Content

[0003] This application provides a calibration device for a density logging instrument, which can automatically complete the change of density calibration medium environment during the calibration process of the density logging instrument without the need for manual insertion of the probe. This avoids the risk of personnel being exposed to radiation during the calibration of the density logging instrument and improves the unmanned and intelligent level of density logging instrument calibration.

[0004] This application provides a calibration device for a density logging instrument, including a calibration insert assembly, comprising a calibration insert, a first lifting assembly, and a first translation assembly. The calibration insert is connected to the first lifting assembly, which can drive the calibration insert to move up and down in a first direction. The first lifting assembly is connected to the first translation assembly, which can drive the first lifting assembly to move in a second direction, where the first and second directions intersect. It also includes a calibration barrel assembly, which is spaced apart from the calibration insert assembly along the second direction. The calibration barrel assembly includes a calibration barrel and a second lifting assembly connected to the calibration barrel, which can drive the calibration barrel to move up and down in the first direction.

[0005] According to the foregoing embodiments of this application, the first lifting assembly includes a lifting cylinder and a connecting plate. The connecting plate is connected to the lifting end of the lifting cylinder, and the scale insert is detachably connected to the connecting plate by fasteners.

[0006] According to any of the foregoing embodiments of this application, the first translation component includes a first drive motor, a module track, and a module slider connected to the module track. The first drive motor drives the module slider to move along the module track. The first lifting component is connected to the module slider. The module track extends along a second direction.

[0007] According to any of the foregoing embodiments of this application, the second lifting assembly includes a second drive motor, a reduction transmission assembly, and a lifting screw assembly. The second drive motor is connected to the lifting screw assembly through the reduction transmission assembly, and the scale barrel is connected to the lifting screw assembly.

[0008] According to any of the foregoing embodiments of this application, the speed reduction transmission assembly includes a driving gear and a driven gear that mesh with each other, a second drive motor is connected to the driving gear, and the driven gear is connected to the lifting screw assembly.

[0009] According to any of the foregoing embodiments of this application, the lifting screw assembly includes a screw and a screw nut that cooperate with each other, a speed reduction transmission assembly is connected to the screw, and the speed reduction transmission assembly drives the screw to rotate along its own axial direction, so that the screw nut rises and falls in a first direction, and the screw extends in a first direction.

[0010] According to any of the foregoing embodiments of the present application, the lifting screw assembly further includes a tray, which is connected to the screw nut and is used to support the graduated cylinder.

[0011] According to any of the foregoing embodiments of this application, a limiting member is provided on the tray, which is used to limit the graduated cylinder placed on the tray.

[0012] According to any of the foregoing embodiments of the present application, the scale calibration device further includes a body frame, and the scale insert assembly and the scale barrel assembly are both mounted on the body frame.

[0013] According to any of the foregoing embodiments of the present application, the bottom of the body frame is provided with multiple wheels.

[0014] According to the calibration device for a density logging instrument according to an embodiment of this application, when the density logging instrument is not inserted into the calibration barrel of the calibration device (i.e., when the calibration device of the density logging instrument is in an unloaded state), the height of the calibration barrel and the insert in the vertical direction is first adjusted by the first lifting component and the second lifting component, so that a preset height difference is maintained between the upper surface of the calibration barrel and the calibration insert in the thickness direction, so as to ensure that the calibration insert can be inserted into the calibration barrel freely in the vertical direction. After the part of the density logging instrument to be calibrated enters the calibration barrel, the first translation component drives the first lifting component to move in the horizontal direction so that the calibration insert can move into the designated position in the calibration barrel. Then the first lifting component and the second lifting component move downward in the vertical direction so that a preset pressure is maintained between the calibration insert and the density logging instrument, and the calibration of the first calibration environment of the density logging instrument is completed. Then, the first and second lifting components move the scale insert and scale barrel vertically to restore the preset height difference between them in the no-load state. The first translation component then moves the scale insert from inside the scale barrel to outside. Once the scale insert is completely removed from the scale barrel, the second lifting component presses the scale barrel vertically downwards until the upper edge of the scale barrel maintains a preset pressure with the calibration position of the density logging instrument, completing the second calibration environment calibration of the density logging instrument. Throughout the calibration process, the calibration device automatically inserts and removes the scale insert and changes the calibration environment, eliminating the need for manual insertion. This avoids the risk of radiation exposure for personnel during density logging instrument calibration, improving the unmanned and intelligent level of density logging instrument calibration. Attached Figure Description

[0015] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the calibration device for a density logging instrument in one embodiment of this application.

[0017] Figure label:

[0018] 1000-scale calibration device;

[0019] 100 - Scale insert assembly; 110 - Scale insert; 120 - First lifting assembly; 121 - Lifting cylinder; 122 - Connecting plate; 130 - First translation assembly; 131 - First drive motor; 132 - Module track; 133 - Module slider;

[0020] 200 - Scale barrel assembly; 210 - Scale barrel; 220 - Second lifting assembly; 221 - Second drive motor; 232 - Reduction transmission assembly; 223 - Lifting screw assembly; X - First direction; Y - Second direction. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] In related technologies, density logging instruments need to be calibrated before use to ensure the accuracy of measurement results. Generally, the density logging instrument is calibrated in magnesium and aluminum containers. Then, inserts are inserted into these containers to absorb some gamma rays, thus altering the medium environment for measurement under different conditions. However, because the insertion of these inserts into the magnesium and aluminum containers is currently done manually, operators are at risk of radiation exposure from the radioactive source within the density logging instrument during this process.

[0023] This application provides a calibration device for a density logging instrument, which can automatically complete the change of density calibration medium environment during the calibration process of the density logging instrument without the need for manual insertion of the probe. This avoids the risk of personnel being exposed to radiation during the calibration of the density logging instrument and improves the unmanned and intelligent level of density logging instrument calibration.

[0024] Figure 1 This is a schematic diagram of the calibration device for a density logging instrument according to one embodiment of this application. Figure 1 As shown, this application embodiment provides a calibration device 1000 for a density logging instrument, including a calibration insert assembly 100 and a calibration barrel assembly 200. The calibration insert assembly 100 includes a calibration insert 110, a first lifting assembly 120, and a first translation assembly 130. The calibration insert 110 is connected to the first lifting assembly 120. The first lifting assembly 120 can drive the calibration insert 110 to move up and down in a first direction X. The first lifting assembly 120 is connected to the first translation assembly 130, and the first translation assembly 130 can drive the first lifting assembly 120 to move in a second direction Y. The first direction X intersects the second direction Y. The calibration barrel assembly 200 is spaced apart from the calibration insert assembly 100 along the second direction Y. The calibration barrel assembly 200 includes a calibration barrel 210 and a second lifting assembly 220 connected to the calibration barrel 210. The second lifting assembly 220 can drive the calibration barrel 210 to move up and down in the first direction X.

[0025] It should be noted that in this embodiment, the scale barrel 210 can refer to a magnesium barrel or an aluminum barrel. The first direction X can be the vertical direction, and the second direction Y can be the horizontal direction. According to the density logging instrument scale calibration device 1000 of this application embodiment, when the density logging instrument is not inserted into the scale barrel 210 of the scale calibration device 1000 (i.e., when the density logging instrument scale calibration device 1000 is in an unloaded state), the height of the scale barrel 210 and the scale insert 110 in the vertical direction is first adjusted by the first lifting component 120 and the second lifting component 220, so that the scale barrel 210 and the scale insert 110 maintain a preset height difference between their upper surfaces in the thickness direction, so as to ensure that the scale insert 110 can be inserted into the scale barrel 210 in the vertical direction without obstruction.

[0026] After the part of the density logging instrument to be calibrated enters the calibration barrel 210, the first translation component 130 drives the first lifting component 120 to move horizontally, allowing the calibration insert 110 to move into the designated position within the calibration barrel 210. Then, the first lifting component 120 and the second lifting component 220 move vertically downwards to maintain a preset pressure between the calibration insert 110 and the density logging instrument, thus completing the calibration of the first calibration environment of the density logging instrument.

[0027] Then, the first lifting assembly 120 and the second lifting assembly 220 respectively drive the scale insert 110 and the scale barrel 210 to move vertically, restoring the preset height difference between the scale insert 110 and the scale barrel 210 in the no-load state. Then, the first translation assembly 130 drives the scale insert 110 to move from inside the scale barrel 210 to outside the scale barrel 210. After the scale insert 110 is completely removed from the scale barrel 210, the second lifting assembly 220 drives the scale barrel 210 to press down vertically until the upper edge of the scale barrel 210 maintains a preset pressure with the position to be calibrated on the density logging instrument, thus completing the second scale environment calibration of the density logging instrument. Throughout the calibration process, the calibration device 1000 automatically completed the insertion and removal of the calibration insert 110 and the conversion of the calibration environment. No manual insertion was required, which avoided the risk of personnel being exposed to radiation during the calibration of the density logging instrument and improved the unmanned and intelligent level of the calibration of the density logging instrument.

[0028] like Figure 1 As shown, in some embodiments, the first lifting assembly 120 includes a lifting cylinder 121 and a connecting plate 122. The connecting plate 122 is connected to the lifting end of the lifting cylinder 121. The scale insert 110 is detachably connected to the connecting plate 122 by fasteners.

[0029] In this embodiment, the first lifting assembly 120 is configured as a lifting cylinder 121. The lifting cylinder 121 has good self-falling buffering capability. When the first lifting assembly 120 drives the scale insert 110 to descend and contact the density logging instrument, it can reduce the impact of the scale insert 110 on the density logging instrument. The connecting plate 122 is connected to the lifting end of the lifting cylinder 121, and the scale insert 110 is detachably connected to the connecting plate 122 by fasteners such as bolts and screws.

[0030] like Figure 1 As shown, in some embodiments, the first translation component 130 includes a first drive motor 131, a module track 132, and a module slider 133 connected to the module track 132. The first drive motor 131 drives the module slider 133 to move along the module track 132. The first lifting component 120 is connected to the module slider 133. The module track 132 extends along the second direction Y.

[0031] In this embodiment, when the scale insert 110 needs to be moved into or out of the scale barrel 210, the first drive motor 131 drives the module track 132, causing the module slider 133 to move along the module track 132, thereby driving the first lifting component 120 connected to the module slider 133 to move along the module track 132, and enabling the scale insert 110 connected to the first lifting component 120 to move into or out of the scale barrel 210.

[0032] In some embodiments, the module track 132 may be a lead screw, and the corresponding module slider 133 may be a lead screw nut connected to the lead screw. The first drive motor 131 can drive the lead screw to rotate, so that the lead screw nut connected to the lead screw can reciprocate along the length direction of the lead screw.

[0033] like Figure 1 As shown, in some embodiments, the second lifting assembly 220 includes a second drive motor 221, a reduction transmission assembly 232, and a lifting screw assembly 223. The second drive motor 221 is connected to the lifting screw assembly 223 through the reduction transmission assembly 232, and the scale barrel 210 is connected to the lifting screw assembly 223.

[0034] In this embodiment, the second drive motor 221 drives the reduction gear transmission assembly, which in turn drives the lifting screw assembly 223 to rise and fall, causing the scale cylinder 210 connected to the lifting screw assembly 223 to rise and fall vertically. The reduction gear assembly converts the high-speed, low-torque output of the second drive motor 221 into low-speed, high-torque output, enabling the second lifting assembly 220 to meet the heavy-load requirements of supporting the scale cylinder 210. Furthermore, the reduction gear transmission assembly 232 can be a single-stage gear transmission assembly or a multi-stage gear reduction assembly, or other components with reduction transmission functions.

[0035] like Figure 1 As shown, in some embodiments, the reduction transmission assembly 232 includes a driving gear and a driven gear that mesh with each other. The second drive motor 221 is connected to the driving gear, and the driven gear is connected to the lifting screw assembly. The second drive motor 221 drives the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the lifting screw assembly 223 to work.

[0036] like Figure 1 As shown, in some embodiments, the lifting screw assembly 223 includes a screw and a screw nut that cooperate with each other, and a speed reduction transmission assembly 232 is connected to the screw. The speed reduction transmission assembly 232 drives the screw to rotate along its own axial direction, so that the screw nut moves up and down along the first direction X, and the screw extends along the first direction X.

[0037] In this embodiment, the speed reduction transmission assembly 232 drives the lead screw to rotate, causing the lead screw nut that cooperates with the lead screw to move along the lead screw, thereby causing the lifting assembly connected to the lead screw nut to rise and fall in the vertical direction, and finally driving the scale barrel 210 connected to the lifting assembly to rise and fall in the vertical direction.

[0038] like Figure 1 As shown, in some embodiments, the lifting screw assembly 223 also includes a tray connected to the screw nut, and the tray is used to support the graduated cylinder 210.

[0039] In some embodiments, a limiting element is provided on the tray to limit the position of the graduated cylinder 210 placed on the tray, thereby ensuring the stability of the graduated cylinder 210 carried on the tray during lifting and lowering. The limiting element can be a clamping component or a fastener. The clamping component or fastener makes the connection between the graduated cylinder 210 and the tray more reliable.

[0040] like Figure 1 As shown, in some embodiments, the scale calibration device 1000 further includes a body frame, and the scale insert assembly 100 and the scale barrel assembly 200 are both mounted on the body frame.

[0041] In some embodiments, the bottom of the body frame is provided with multiple wheels to facilitate the movement of the body frame.

[0042] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A calibration device for a density logging instrument, characterized in that, include: A scale insert assembly includes a scale insert, a first lifting component, and a first translation component. The scale insert is connected to the first lifting component, which is capable of moving the scale insert up and down in a first direction. The first lifting component is also connected to the first translation component, which is capable of moving the first lifting component in a second direction, where the first and second directions intersect. A scale barrel assembly is provided, wherein the scale barrel assembly and the scale insert assembly are spaced apart along the second direction. The scale barrel assembly includes a scale barrel and a second lifting assembly connected to the scale barrel. The second lifting assembly is capable of driving the scale barrel to move up and down in the first direction.

2. The calibration device for the density logging instrument as described in claim 1, characterized in that, The first lifting assembly includes a lifting cylinder and a connecting plate. The connecting plate is connected to the lifting end of the lifting cylinder, and the scale insert is detachably connected to the connecting plate by fasteners.

3. The calibration device for a density logging instrument as described in claim 1 or 2, characterized in that, The first translation component includes a first drive motor, a module track, and a module slider connected to the module track. The first drive motor drives the module slider to move along the module track. The first lifting component is connected to the module slider. The module track extends along the second direction.

4. The calibration device for the density logging instrument as described in claim 1, characterized in that, The second lifting assembly includes a second drive motor, a reduction transmission assembly, and a lifting screw assembly. The second drive motor is connected to the lifting screw assembly through the reduction transmission assembly, and the scale barrel is connected to the lifting screw assembly.

5. The calibration device for the density logging instrument as described in claim 4, characterized in that, The speed reduction transmission assembly includes a driving gear and a driven gear that mesh with each other. The second drive motor is connected to the driving gear, and the driven gear is connected to the lifting screw assembly.

6. The calibration device for a density logging instrument as described in claim 4 or 5, characterized in that, The lifting screw assembly includes a screw and a screw nut that cooperate with each other. The speed reduction transmission assembly is connected to the screw and drives the screw to rotate along its own axis, so that the screw nut moves up and down in the first direction and the screw extends in the first direction.

7. The calibration device for the density logging instrument as described in claim 6, characterized in that, The lifting screw assembly also includes a tray, which is connected to the screw nut and is used to support the graduated cylinder.

8. The calibration device for the density logging instrument as described in claim 7, characterized in that, The tray is provided with a limiting component, which is used to limit the position of the graduated cylinder placed on the tray.

9. The calibration device for the density logging instrument as described in claim 1, characterized in that, The calibration device also includes a frame, and the scale insert assembly and the scale barrel assembly are both mounted on the frame.

10. The calibration device for the density logging instrument as described in claim 9, characterized in that, The bottom of the body frame is equipped with multiple wheels.

Images