Rock core cleaning device

Abstract

The invention belongs to the technical field of core cleaning, and particularly relates to a core cleaning device. The rock core cleaning device comprises a rock core bearing assembly, a cleaning mechanism and a drying mechanism, the rock core bearing assembly is provided with a rock core bearing position, and the rock core cleaning device further comprises a reciprocating transmission mechanism and a fixing bracket connected with the reciprocating transmission mechanism and used for fixing a spray head of the cleaning mechanism and an air outlet of the drying mechanism. The central axes of the spray head and the air outlet are perpendicular to the central axis of the rock core bearing position and are arranged at intervals along the length extension direction of the rock core. The sprayers and the air outlets correspond to the rock core bearing positions and are arranged at intervals in the length extension direction of the rock core, interference of the air outlets on a liquid outlet path in the cleaning process or interference of the sprayers on an air blowing path in the drying process is avoided, and the cleaning and drying effects on the rock core are guaranteed; meanwhile, the spray head and the air outlet are driven by the reciprocating motion mechanism to move in a reciprocating mode so as to clean the surface of the rock core, and the axial cleaning effect of the rock core is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of core cleaning, and particularly relates to a core cleaning device. Background Art

[0002] Core scanning is an important part in the field of oilfield exploration and development geology. By collecting and analyzing images of the outer surface of the core, a digital comprehensive core histogram is established, providing important physical geological data of the core for exploration and development. To ensure the scanning effect, the surface of the core needs to be kept clean during scanning. Generally, the cores collected from the formation are mostly cylindrical. Core scanning is divided into cylindrical scanning and sectional scanning. Among them, for core sectional scanning, a core cutting machine is required to cut the cylindrical core into two cores with semi-circular cross-sections. During the process of cutting the cylindrical core, water is needed for auxiliary cutting. After cutting, a large amount of stains are likely to remain on the sectional surface of the core. The common methods for removing surface stains at present are generally: wiping with a cloth dipped in water, naturally drying or using a hair dryer to dry the surface moisture before scanning; or wiping with water and naturally drying, then observing and describing the core first, and then scanning.

[0003] The above methods for cleaning the stains on the core surface have the following problems: 1) When wiping the sectional surface of the core with a cloth dipped in water, stains are likely to remain, resulting in unclear images of the core scanning, unable to reflect the real geological situation, and being time-consuming and laborious; 2) The time for natural drying of the core is relatively long, and salts and the like in the core will seep out and form patterns on the core surface or there is a risk of core cracking, affecting the authenticity of the scanning result or unable to reflect the real geological situation; 3) During the process of natural drying of the core, dust in the air will fall on the sectional surface of the core, which will also affect the authenticity of the scanning result; 4) Holding a hot hair dryer to dry the moisture on the sectional surface, the labor intensity of the detection personnel is relatively large.

[0004] As an improvement, a Chinese invention patent application with the application publication number CN111921961A and the application publication date of November 13, 2020 discloses a shale core cleaning and drying device. By arranging a core bearing rack for the shale core inside the device body, and respectively arranging a cleaning pipe and a drying pipe at the upper end of the core bearing rack, first, the water in the water tank is sprayed on the shale core through the cleaning pipe to wash away the soil and sundries on the shale core, and the muddy water is discharged through the drain pipe. Then, a fan is used to blow the hot air in the heater into the drying pipe, and the hot air is evenly blown onto the shale core from the air outlet holes on the drying pipe, so that the moisture on the shale core evaporates and dries quickly.

[0005] However, in the above solution, after the position of the core carrier is fixed, the positions of the drying pipe and the cleaning pipe are also relatively fixed. The fact that the drying pipe is located below the cleaning pipe will, to a certain extent, affect the pressure of the spraying water from the cleaning pipe onto the core, thereby affecting the cleaning effect of the core. At the same time, the nozzle setting form of the cleaning pipe results in poor axial cleaning uniformity and cleaning effect of the core. In addition, after the cleaning is completed, the core needs to be taken out of the device and placed in a special core box for scanning, which is a cumbersome process and affects work efficiency. Summary of the Invention

[0006] The purpose of the present invention is to provide a core cleaning device to solve the problems in the current technology that the position interference between the drying pipe and the cleaning pipe cannot provide sufficient flushing pressure, thereby affecting the flushing effect, and the structural setting of the cleaning pipe affects the axial cleaning effect of the core.

[0007] To achieve the above purpose, the core cleaning device in the present invention adopts the following technical solutions:

[0008] A core cleaning device includes a core carrying assembly, a cleaning mechanism, and a drying mechanism. The core carrying assembly has a core carrying position, and further includes a reciprocating transmission mechanism and a fixed bracket connected to the reciprocating transmission mechanism for fixing the nozzle of the cleaning mechanism and the air outlet of the drying mechanism. The central axes of the nozzle and the air outlet are perpendicular to the central axis of the core carrying position and are spaced along the length extension direction of the core carrying position.

[0009] Further, the nozzles and the air outlets are set in groups, and each group corresponds to one core carrying position.

[0010] Further, each group of the nozzles and the air outlets share one fixed bracket. The fixed bracket includes a vertical rod connected to the reciprocating transmission mechanism, and an upper fixing member and a lower fixing member spaced along the axial direction of the vertical rod. Corresponding positions on the upper fixing member and the lower fixing member are provided with fixing positions for fixing the nozzles and the air outlets. The liquid outlet end face of the nozzle and the air outlet end face of the air outlet are at the same height from the surface of the core.

[0011] Further, the spray orifice of the nozzle is a linear structure, the width of the spray orifice is not less than the radial width of the core carrying position, and the width direction of the spray orifice is perpendicular to the central axis of the core carrying position.

[0012] Further, the core carrying assembly includes a carrying box, the carrying box has an arc-shaped carrying groove adapted to the shape of the core, and a third water drainage hole is provided on the carrying groove.

[0013] Furthermore, the core bearing assembly further includes a core tray used in cooperation with the bearing box. The core tray has a main body portion adapted to the shape of the core and the arc-shaped bearing groove, and edge portions horizontally extending from the main body portion to both sides. The main body portion is provided with a fourth drain hole, and the edge portions are provided with scales.

[0014] Furthermore, the core bearing assembly is configured with a lifting mechanism to move the core closer to or farther away from the nozzle or the air outlet.

[0015] Furthermore, the core cleaning device is further provided with a liquid discharge channel for discharging the cleaning liquid and a waste liquid tank for collecting the waste liquid for cleaning the core. The waste liquid tank is configured with a tank cover plate. The liquid discharge channel includes a fourth drain hole, a third drain hole, a second drain hole provided in the lifting mechanism, and a first drain hole provided on the tank cover plate. The waste liquid after cleaning the core is sequentially collected in the waste liquid tank through the fourth drain hole, the third drain hole, the second drain hole, and the first drain hole.

[0016] Furthermore, the reciprocating transmission mechanism is one of a worm and worm gear mechanism, a linear motor, a nut and screw mechanism, or a rack and pinion mechanism.

[0017] Furthermore, the core bearing position is configured with a rotating mechanism. The rotating mechanism at least includes two rollers close to each other and a driving mechanism for driving the rollers to rotate, and the driving mechanism drives the rollers to rotate to rotate the core sample circumferentially.

[0018] The beneficial effects of the present invention are as follows: The present invention is improved based on the prior art. By arranging the nozzle and the air outlet corresponding to the core bearing position and at intervals along the length extension direction of the core bearing position, the interference of the air outlet on the liquid discharge path of the nozzle during the cleaning process is avoided, thereby ensuring the flushing pressure of the nozzle and improving the cleaning effect; the interference of the nozzle on the blowing path of the air outlet during the drying process is also avoided, ensuring the blowing and drying effect; at the same time, the central axes of the nozzle and the air outlet are perpendicular to the central axis of the core bearing position, improving the flushing pressure of the nozzle and the blowing force of the air outlet during cleaning, and reciprocating under the drive of the reciprocating movement mechanism to clean the surface of the core, thereby improving the cleaning effect in the axial direction of the core. Description of the Drawings

[0019] Figure 1 is the main structural view of the embodiment of the core cleaning device of the present invention;

[0020] Figure 2 is Figure 1 the left view of;

[0021] Figure 3 is the main view of the bracket in the embodiment of the core cleaning device of the present invention;

[0022] Figure 4 isFigure 3 Left view of

[0023] Figure 5 Top view of the carrier box in the embodiment of the core cleaning device of the present invention;

[0024] Figure 6 is Figure 5 Left view of

[0025] Figure 7 Top view of the core tray in the embodiment of the core cleaning device of the present invention;

[0026] Figure 8 is Figure 7 Left view of

[0027] Figure 9 Schematic diagram of the drying mechanism in the embodiment of the core cleaning device of the present invention;

[0028] Figure 10 Schematic diagram of the worm shaft structure in the embodiment of the core cleaning device of the present invention;

[0029] Figure 11 Schematic diagram of the transmission shaft structure in the embodiment of the core cleaning device of the present invention;

[0030] Figure 12 Schematic diagram of the vertical rod structure in the embodiment of the core cleaning device of the present invention;

[0031] Figure 13 Front view of the nozzle in the embodiment of the core cleaning device of the present invention;

[0032] Figure 14 is Figure 13 Top view of.

[0033] In the figure: 1. Bracket; 11. Upper bracket; 111. Bracket cover; 1111. Upper guide rail; 112. Power bracket; 1121. Lower guide rail; 1122. Bearing mounting hole; 12. Lower bracket; 121. Front vertical beam; 122. Underframe; 123. Rear vertical beam; 124. Cross beam; 13. Box cover plate; 131. First drain hole; 14. Waste liquid tank; 141. Drain valve; 15. Power box; 151. Partition plate; 2. Power mechanism; 21. Variable speed motor; 22. First bearing; 23. Worm shaft; 231. Installation section; 2311. Spline slot hole; 232. Worm shaft collar; 233. Worm body; 24. Worm gear; 25. Vertical rod; 251. Upper support plate; 252. Support rod; 253. Lower support plate; 254. First rod section; 2541. Square hole; 255. Ring platform part; 256. Second rod section; 2561. First threaded hole; 26. Transmission shaft; 261. Shaft head; 2611. First keyway; 262. Shaft neck; 2621. Second keyway; 263. Shaft body; 2631. Third keyway; 264. Shaft tail; 265. Second bearing; 2641. Third threaded hole; 3. Induction module; 31. Induction plate; 32. Light control probe; 33. Control unit; 4. Cleaning mechanism; 41. Cleaning rigid tube; 42. Solenoid valve; 43. Cleaning joint; 44. Sprayer; 441. Spray port; 45. Three-way pipe; 46. Cleaning flexible tube; 47. Hydraulic pump; 5. Drying mechanism; 51. Hot air blower; 52. Heat-resistant tube; 53. Check valve; 54. Air outlet; 6. Lifting mechanism; 61. Adjusting bolt; 62. Scissor arm; 63. Support plate; 7. Carrying box; 71. Box body; 72. Carrying groove; 73. Third drain hole; 74. U-shaped groove; 75. Spacer; 8. Core tray; 81. Main body part; 82. Edge part; 83. Fourth drain hole; 84. Semi-circular groove; 9. Chain conveyor belt; 10. Core. Specific embodiments

[0034] The features and performance of the present invention will be further described in detail below in conjunction with embodiments.

[0035] The core cleaning device provided by the present invention avoids the interference of the air outlet on the liquid outlet path of the spray head during the cleaning process or the interference of the spray head on the blowing path of the air outlet during the drying process by corresponding the spray head and the air outlet to the core bearing position and arranging them at intervals along the length extension direction of the core, thereby improving the cleaning and drying effects; at the same time, driven by the reciprocating movement mechanism, the spray head and the air outlet reciprocate to clean the surface of the core, improving the cleaning effect in the axial direction of the core.

[0036] Embodiment 1 of the core cleaning device in the present invention:

[0037] As Figure 1 And Figure 2As shown in the figure, this embodiment provides a core cleaning device, which includes a bracket 1 and a control system, a lifting mechanism 6 arranged on the bracket 1, and a power mechanism 2, a cleaning mechanism 4, and a drying mechanism 5 that are controlled and connected to the control system. A core bearing assembly is arranged on the lifting mechanism 6.

[0038] As Figures 1 to 4 shown in the figure, the bracket 1 includes an upper bracket 11 and a lower bracket 12 connected to the upper bracket 11. Among them, the upper bracket 11 includes a power bracket 112 and a bracket cover 111. The power bracket 112 is a stepped trough box. The side wall of the trough box on the power bracket 112 has a V-shaped protrusion, and the V-shaped protrusion constitutes a lower guide rail 1121. Side plates are arranged on both sides of the power bracket 112, and bearing mounting holes 1122 are arranged on the side plates. A first bearing 22 for cooperating with the worm shaft 23 of the power mechanism 2 is installed in the bearing mounting holes 1122. Fastener mounting holes for allowing fasteners for fastening the side plates to pass through are symmetrically arranged on both sides of the bearing mounting holes 1122 on the side plates. The bracket cover 111 is a stepped convex box, and a V-shaped upper guide rail 1111 corresponding to the lower guide rail 1121 is arranged on the bracket cover 111. In this embodiment, the upper guide rail 1111 and the bracket cover 111 are integrally formed, and the lower guide rail 1121 and the power bracket 112 are integrally formed.

[0039] In this embodiment, a chain conveyor belt 9 is installed on the bracket cover 111.

[0040] The lower bracket 12 is a frame structure, which includes a chassis 122 and front vertical beams 121 and rear vertical beams 123 arranged on opposite sides in the width direction of the chassis 122. Cross beams 124 connecting the two rear vertical beams 123 are arranged at the ends of the two rear vertical beams 123 away from the chassis 122, and induction plates 31 are arranged at both ends of the cross beam 124.

[0041] A waste liquid tank 14 and a power tank 15 separated by a partition plate 151 are arranged on the chassis 122. A box cover plate 13 is arranged at the top of the partition plate 151 to cover the waste liquid tank 14 and the power tank 15. A first drain hole 131 is arranged on one side of the box cover plate 13 located at the waste liquid tank 14, and a drain valve 141 is arranged at the bottom of the waste liquid tank 14. A control unit 33 and a hydraulic pump 47 are installed in the power tank 15.

[0042] As Figures 5 to 8As shown, the core bearing assembly includes a bearing box 7. Specifically, the projection of the bearing box 7 is rectangular, and specifically includes a box body 71. A bearing groove 72 adapted to the shape of the core 10 is provided on the box body 71. In this embodiment, the bearing groove 72 constitutes the core bearing position. The bearing groove 72 is a semi-circular groove adapted to the shape of the core 10. There are two bearing grooves 72, and the core 10 is placed in the bearing grooves 72. A partition plate 75 is provided between the two bearing grooves 72. A U-shaped groove 74 is also provided on the partition plate 75. Third drain holes 73 are provided in both the bearing groove 72 and the U-shaped groove 74. The provided third drain holes 73 are beneficial to the discharge of sewage during cleaning, and prevent the formation of accumulated water in the bearing groove 72 or the U-shaped groove 74, which may affect the cleaning effect and subsequent drying. Of course, in other embodiments, the bearing groove 72 may be an arc groove adapted to the shape of the core 10, that is, the bearing groove 72 has an arc section adapted to the shape of the core 10. The bearing groove 72 may be provided in one, three or other appropriate numbers. It should be understood that the specific number of the bearing grooves 72 can be set according to actual needs, and this embodiment does not limit this.

[0043] As another embodiment, the core bearing assembly further includes a core tray 8 used in cooperation with the bearing box 7. The core tray 8 has a main body portion 81 adapted to the shape of the core 10 and edge portions 82 horizontally extending radially from both sides of the main body portion 81. Specifically, the main body portion 81 is a semi-circular groove 84 adapted to the shape of the core 10 and the bearing groove 72. A number of fourth drain holes 83 are provided on the semi-circular groove 84, and a scale is configured on the edge portion 82. In this embodiment, the core tray 8 constitutes the core bearing position. By providing the edge portion 82, the core tray 8 can be placed on the bearing box 7, and at the same time, it is convenient for loading and unloading the core tray 8. The scale provided on the edge portion 82 can directly observe the length dimension information of the core 10, which is convenient for direct application during subsequent scanning. By providing the fourth drain holes 83, the waste liquid during cleaning can be effectively discharged from the fourth drain holes 83, thereby preventing the formation of accumulated water in the core tray 8 and affecting the cleaning effect.

[0044] As other embodiments, the edge portion can be provided on both axial sides of the main body portion; of course, the edge portion can also surround the main body portion.

[0045] It should be noted that in this embodiment, after cleaning and drying, the core tray 8 containing the core 10 can be directly used in the core 10 scanning process, without taking out the core 10 after cleaning and drying.

[0046] The core bearing assembly is configured with a lifting mechanism 6 to move the core closer to or farther from the nozzle end face or the air outlet end face. Specifically, Figure 1 and Figure 2As shown in the figure, the lifting mechanism 6 is arranged above the tank cover plate 13 of the waste liquid tank 14 and the power box 15. In this embodiment, the lifting mechanism 6 is a scissor-type lifting mechanism. The lifting mechanism 6 includes scissor arms 62, adjusting bolts, and a supporting plate 63. Both ends of the scissor arms 62 are respectively connected with supports for fixedly connecting with the tank cover plate 13 and the supporting plate 63. The adjusting bolts are used to adjust the lifting of the scissor arms 62. The supporting plate 63 is used to place the core bearing assembly. Specifically, a bearing box 7 is placed on the supporting plate 63, and a number of second drain holes are provided on the supporting plate 63, so as to facilitate the drainage of water during the cleaning of the core 10. Through the lifting mechanism 6, the bearing box 7 placed on the bearing support plate 63 can be moved away from or closer to the nozzle or the air outlet, so as to improve the cleaning or drying effect and facilitate the loading and unloading of the core 10.

[0047] As other embodiments, the lifting mechanism 6 can be any form such as a motor and chain type lifting mechanism, a ball screw type lifting mechanism, etc., and this embodiment does not limit this.

[0048] As Figure 2 , Figure 5 , Figure 7 As shown in the figure, the waste liquid during the cleaning process flows from the fourth drain hole 83 of the core tray 8 into the bearing box 7, and then successively flows into the waste liquid tank 14 through the third drain hole 73 of the bearing box 7, the second drain holes on the supporting plate 63 of the scissor-type lifting mechanism 6, and the first drain hole 131 on the tank cover plate 13. In this way, the fourth drain hole 83, the third drain hole 73, the second drain holes, and the first drain hole 131 form a drainage channel for the cleaning liquid, so that the waste liquid after cleaning the core is collected into the waste liquid tank 14 through the drainage channel.

[0049] As Figure 1 and Figure 2 As shown in the figure, the nozzles 44 and the air outlets 54 are set in groups, and each group corresponds to a core bearing position. In this way, each core bearing position is configured with a group of nozzles and air outlets, so as to realize the cleaning or drying of the outer surface of the core located in the core bearing position.

[0050] Specifically, the cleaning mechanism 4 includes a hydraulic pump, a nozzle assembly, and a liquid supply pipeline for supplying liquid to the nozzle assembly. Among them, the nozzle assembly includes a nozzle 44, a cleaning joint 43, a solenoid valve 42, and a rigid cleaning pipe 41 connecting the solenoid valve 42 and the cleaning joint 43; the liquid supply pipeline includes a flexible cleaning pipe 46 connecting the nozzle 44 and the hydraulic pump and a rigid cleaning pipe 41 connecting the nozzle 44 and the flexible cleaning pipe 46. Specifically, the inlet of the hydraulic pump is connected to the water inlet pipe, the outlet of the hydraulic pump is connected with a flexible cleaning pipe 46, the flexible cleaning pipe 46 is connected to a three-way pipe 45 through a chain conveyor belt 9, one outlet of the three-way pipe 45 is connected to one end of the rigid cleaning pipe 41, and a solenoid valve 42 and a cleaning joint 43 are sequentially arranged between the rigid cleaning pipe 41 and the nozzle 44 along the flow direction of the cleaning liquid, and the other end of the cleaning joint 43 is connected to the nozzle 44.

[0051] In this embodiment, there are two nozzles 44 corresponding to the bearing grooves 72, and the central axis of each nozzle 44 is perpendicular to the cross-section of the core 10 in the core tray 8. The central axis of the nozzle 44 being perpendicular to the cross-section of the core 10 can effectively ensure that the water flow ejected from the nozzle 44 through the nozzle orifice 441 is perpendicular to the surface of the core 10, thereby increasing the flushing pressure of the nozzle 44 on the surface of the core 10 and further improving the cleaning effect of the core 10. In other embodiments, the number of nozzles 44 can be one, three, or other appropriate numbers. It should be understood that the number of nozzles 44 is adapted to the number of core bearing positions, so as to ensure that each core bearing position corresponds to a nozzle 44. The specific number of nozzles 44 is reasonably set according to actual needs and corresponding to the core bearing positions, and this is not limited in this embodiment.

[0052] In this embodiment, as Figure 13 and Figure 14 shown, the nozzle 44 has a linear-structured atomizing nozzle orifice 441, and the width direction of the nozzle orifice 441 is perpendicular to the central axis of the core bearing position, that is, the width direction of the nozzle orifice 441 is perpendicular to the length direction of the bearing box 7, and the width of the nozzle orifice 441 is not less than the radial width of the core bearing position. Preferably, the width of the nozzle orifice 441 is equal to or slightly greater than the width of the cross-section of the core 10.

[0053] During cleaning, the high-pressure cleaning liquid can form a water brush composed of a water curtain through the linear-structured nozzle orifice 441, thereby increasing the flushing pressure on the surface of the core 10 and further improving the cleaning effect; at the same time, the width of the nozzle orifice 441 not being less than the radial width of the core bearing position can ensure that the water curtain ejected from the nozzle orifice 441 can cover the cross-section of the core 10 rotating in the core bearing position, ensuring the cleaning effect.

[0054] As Figure 1 、 Figure 2 and Figure 9As shown in the figure, the drying mechanism 5 includes a hot air blower 51, a blowing component, and a connecting blowing component. Specifically, the blowing component includes an air outlet 54, a check valve 53, and a heat-resistant pipe 52. Specifically, the outlet of the hot air blower 51 is connected to one end of the heat-resistant pipe 52, and the other end of the heat-resistant pipe 52 is connected to the air outlet 54. A check valve 53 is also provided between the hot air blower 51 and the air outlet 54 at one end of the heat-resistant pipe 52 close to the air outlet 54. In this embodiment, there are two air outlets 54 corresponding to the bearing grooves 72. The central axis of each air outlet 54 is perpendicular to the cross-section of the core 10 in the core tray 8. The width of the air outlet 54 is equal to or slightly smaller than the width of the cross-section of the core 10. The central axis of the air outlet 54 being perpendicular to the cross-section of the core 10 can effectively ensure that the wind direction blown out by the air outlet 54 is perpendicular to the surface of the core 10, thereby improving the drying efficiency of the surface of the core 10 after cleaning. At the same time, the width of the air outlet 54 being equivalent to the width of the cross-section of the core 10 can ensure that the hot air blown out by the air outlet 54 can cover the cross-section of the core 10 or blow the accumulated water near the central axis position on the surface of the core 10 towards the edge of the surface of the core 10, improving the drying efficiency and effect.

[0055] Of course, in other embodiments, the number of air outlets 54 can be one, three, or other appropriate numbers. It should be understood that the number of air outlets 54 is adapted to the number of core bearing positions, so as to ensure that each core bearing position corresponds to an air outlet 54. The specific number of air outlets 54 is reasonably set according to actual needs and corresponding to the core bearing positions, and this embodiment does not limit this.

[0056] In order to avoid interference between the air outlet 54 and the nozzle 44 during operation and affect the drying or cleaning effect, in this embodiment, the nozzle 44 and the air outlet 54 are arranged at intervals corresponding to the core bearing positions along the length extension direction of the core 10.

[0057] In the above embodiment, by arranging the nozzle 44 and the air outlet 54 corresponding to the core bearing positions and at intervals along the length extension direction of the core 10, the nozzle 44 corresponding to the core bearing position can clean the core 10, and the air outlet 54 can be used to dry the core 10, avoiding the interference of the air outlet 54 on the liquid outlet path of the nozzle 44 during the cleaning process, thereby ensuring the flushing pressure of the nozzle 44 and improving the cleaning effect. At the same time, it also avoids the interference of the nozzle 44 on the blowing path of the air outlet 54 during the drying process, ensuring the blowing and drying effect.

[0058] In this embodiment, the nozzle 44 and the air outlet 54 share a fixed bracket. The fixed bracket includes a vertical rod 25 for connecting with the reciprocating transmission mechanism, and an upper fixing member and a lower fixing member arranged at intervals along the axial direction of the vertical rod 25. Corresponding positions on the upper fixing member and the lower fixing member are provided with fixing positions for fixing the nozzle 44 and the air outlet 54.

[0059] In the above-described embodiment, the spray head 44 and the air outlet 54 are fixed by using the same fixed bracket, so that the spray head 44 and the air outlet 54 can move synchronously, thereby avoiding interference of the unoperated spray head or air outlet during the cleaning or drying process with the working components, and improving the cleaning or drying effect on the surface of the core 10.

[0060] The fixed bracket includes a vertical rod 25, an upper support plate 251, a lower support plate 252, and a support rod 252. Specifically, as Figure 1 、 Figure 2 and Figure 12 shown, the cross-section of the vertical rod 25 is square. The vertical rod 25 includes a rod body and a ring platform portion 255 protruding from the outer periphery of the rod body. The ring platform portion 255 divides the rod body into a first rod segment 254 and a second rod segment 256 connected by the ring platform portion 255. A square hole 2541 is provided in the middle of the first rod segment 254 for connecting with the transmission shaft 26 of the reciprocating transmission mechanism. A first threaded hole 2561 is provided on the end surface of the second rod segment 256 away from the ring platform portion 255. A lower fixing member is fixedly connected to the end surface of the second rod segment 256 by a thread. An upper fixing member is assembled on the ring platform portion 255. In this embodiment, the upper fixing member is a square upper support plate 251, and the lower fixing member is a square lower support plate 253.

[0061] To ensure the stability of the connection between the upper support plate 251 and the lower support plate 253, support rods 252 are provided at the four corners of the upper support plate 251 and the lower support plate 253. Second threaded holes are provided on the end surfaces at both ends of the support rod 252. The support rod 252 is connected to the upper support plate 251 and the lower support plate 253 by fixing bolts connected to the threaded holes.

[0062] The upper support plate 251 is provided with a first upper fixing hole (not marked in the figure) and a second upper fixing hole (not marked in the figure), and the first upper fixing hole and the second upper fixing hole are arranged at intervals along the length extension direction of the core 10; on the lower support plate 253, a first lower fixing hole is provided corresponding to the first upper fixing hole, and a second lower fixing hole is provided corresponding to the second upper fixing hole; the first upper fixing hole and the first lower fixing hole form a fixing position for fixing the nozzle 44, and the second upper fixing hole and the second lower fixing hole form a fixing position for fixing the air outlet 54; specifically, there are two first upper fixing holes and two second upper fixing holes, and correspondingly, there are also two first lower fixing holes and two second lower fixing holes, that is to say, there are two sets of fixing positions for the nozzle 44 and the air outlet 54 respectively; the cleaning hard tube 41 of the cleaning mechanism 4 passes through the first upper fixing hole of the upper support plate 251, and the cleaning joint 43 is connected to the nozzle 44 through the first lower fixing hole of the lower support plate 253; the hot air blower 51 of the drying mechanism 5 is installed in the second upper fixing hole of the upper support plate 251, and the heat-resistant tube 52 passes through the second lower fixing hole of the lower support plate 253 and is connected to the air outlet 54, and the liquid outlet end face of the nozzle 44 and the air outlet end face of the air outlet 54 are kept at the same height from the surface of the core 10. In this way, after the nozzle 44 and the air outlet 54 are fixed to the corresponding fixing positions of the fixing bracket, and the liquid outlet end face of the nozzle 44 and the air outlet end face of the air outlet 54 are kept at the same height from the surface of the core 10, the mutual interference between the liquid outlet path of the nozzle 44 and the blowing path of the air outlet 54 is further reduced.

[0063] In other embodiments, there may be only one set or three sets, or other appropriate numbers of fixing positions for fixing the nozzle 44 and the fixing positions for fixing the air outlet 54. It should be understood that the number of fixing positions for the nozzle 44 and the air outlet 54 is adapted to the number of core bearing positions, so as to ensure that each core bearing position corresponds to a nozzle 44 and an air outlet 54. The specific number of fixing positions is reasonably set according to actual needs and corresponding to the core bearing positions, and this embodiment does not limit this.

[0064] As another embodiment, the upper fixing member and the lower fixing member may be circular plates or annular plates, or may also be bracket beams in a "cross shape" or an "X shape".

[0065] Such as Figure 1As shown in the figure, the power mechanism 2 includes a driving mechanism and a reciprocating transmission mechanism. Among them, the driving mechanism is a variable-speed motor 21, and the variable-speed motor 21 is fixed to one side of the power support 112 by fixing screws. The output end of the output shaft of the variable-speed motor 21 has a spline; the variable-speed motor 21 enables the nozzle assembly and the blowing assembly to reciprocate along the length extension direction of the core 10 through the reciprocating transmission mechanism. Driving the nozzle assembly and the blowing assembly to reciprocate along the length extension direction of the core 10 through the reciprocating transmission mechanism is beneficial to cleaning the surface of the core 10 by the reciprocating movement of the nozzle assembly and drying the surface of the cleaned core 10 by the reciprocating movement of the blowing assembly.

[0066] As Figure 1 , Figure 2 , Figure 10 shown, the reciprocating transmission mechanism includes a worm and worm gear mechanism. The worm and worm gear mechanism includes a worm shaft 23 and a worm wheel 24; the reciprocating transmission mechanism also includes a transmission shaft 26 connected to the worm wheel 24 of the worm and worm gear mechanism and connected to the vertical rod 25. In this embodiment, the worm wheel 24 is rotationally matched with the worm shaft 23, and the worm wheel 24 is sleeved on the transmission shaft 26. Among them, the worm shaft 23 includes a worm body 233 and mounting sections 231 located at both ends of the worm body 233, and a worm shaft collar 232 for connecting the worm body 233 and the mounting section 231. A first bearing 22 is provided on the mounting section 231, and the worm shaft collar 232 protrudes from the outer periphery of the worm body 233 to form a limiting structure for the first bearing 22; a spline slot hole 2311 is provided on one of the mounting sections 231; the connection between the variable-speed motor 21 and the worm shaft 23 is realized by the cooperation of the spline on the output shaft of the variable-speed motor 21 and the spline slot hole 2311 of the worm shaft 23.

[0067] As Figure 2 and Figure 11 shown, the transmission shaft 26 is stepped, including a shaft head 261, a shaft neck 262, a shaft body 263 and a shaft tail 264. Among them, a first keyway 2611 is provided on the shaft head 261, a second keyway 2621 for connecting with the worm wheel 24 is provided on the shaft neck 262, and a third keyway 2631 is provided on the shaft body 263; the cross-section of the shaft tail 264 is square for cooperating with the square hole 2541 of the vertical rod 25, and a third threaded hole 2641 perpendicular to the axis of the transmission shaft 26 is further provided at the end of the shaft tail 264. The shaft tail 264 is inserted into the square hole 2541 of the vertical rod 25 and connected to the third threaded hole 2641 by a fixing bolt to realize the fixed connection between the transmission shaft 26 and the vertical rod 25.

[0068] A second bearing 265 is also rotatably arranged on the transmission shaft 26 and is respectively engaged with the first keyway 2611 and the third keyway 2631. Specifically, the second bearing 265 is a double-row ball precision V-groove guide pulley bearing. The second bearing 265 is located on both sides of the worm gear 24 and is in rolling engagement with the upper guide rail 1111 and the lower guide rail 1121, thereby forming a guiding structure for the movement of the worm gear 24. By providing two guide pulley bearings and locating them on both sides of the worm gear 24, the stability and smoothness of the movement of the worm gear 24 driving the transmission shaft 26 can be effectively ensured. Of course, in other embodiments, the guiding structure may not adopt pulley bearings but a slider structure.

[0069] As Figure 1 and Figure 2 shown, in this embodiment, driven by the variable-speed motor 21, the worm shaft 23 rotates to transmit power to the worm gear 24. The worm gear 24 converts the rotational motion of the worm shaft 23 into a linear motion. The worm gear 24 drives the transmission shaft 26 to reciprocate along the extension direction of the upper guide rail 1111 and the lower guide rail 1121. Furthermore, the transmission shaft 26 drives the fixed bracket to reciprocate to drive the spray head 44 and the air outlet 54 to reciprocate to clean or dry the surface of the core 10.

[0070] The reciprocating transmission mechanism further includes a chain conveyor belt 9. The cleaning hose 46 is connected to a hydraulic pump 47 provided in the power box 15 via the chain conveyor belt 9. In this way, the cleaning hose 46 for supplying cleaning liquid to the spray head assembly reciprocates along the length extension direction of the core 10 under the drive of the chain conveyor belt 9, ensuring the continuity of the liquid supply to the spray head assembly, thereby effectively ensuring the cleaning effect of the surface of the core 10.

[0071] The control system includes a main switch, a solenoid valve 42, an induction module 3, a control circuit for the drying mechanism, a control circuit for the motor, and a control unit 33. Among them, the solenoid valve 42 is assembled on the cleaning rigid pipe 41 near the cleaning joint 43 in the cleaning mechanism 4; the control circuits of the solenoid valve 42, the control circuit of the light control probe 32, and the control circuit of the hot air blower 51 of the drying mechanism 5 are respectively fixed to the vertical rod 25 with cable ties. Each control circuit is electrically connected to the control unit 33 provided in the power box 15 via the chain conveyor belt 9.

[0072] The induction module 2 is used to cooperate with the reciprocating transmission mechanism to limit the extreme positions of the reciprocating movement of the reciprocating transmission mechanism. Specifically, the induction module 3 includes a light control probe 32 and an induction plate 31. Among them, there are two light control probes 32, which are installed at both ends of the upper support plate 251 along the length direction of the core and on the side close to the upper bracket 11. The height of the light control probe 32 is opposite to the induction plate 31 provided on the cross beam 124; in this embodiment, in order to ensure the cleaning and drying effects of the core 10, the distance between the two induction plates 31 is greater than or equal to the length of the core carrying box 7; through the cooperation of the induction plate 31 and the light control probe 32, the reciprocating movement mechanism can reciprocate along the length direction of the core carrying box 7.

[0073] As Figure 1 and Figure 2 shown, when the core cleaning device of the present invention is in use, it specifically includes the following steps:

[0074] (1) Place the core 10 to be cleaned into the core tray 8, and place the core tray 8 containing the core 10 on the supporting plate 63 of the lifting mechanism 6. The cut surface of the core 10 faces the spray nozzle 441 of the spray head 44 and the air outlet 54 of the air outlet;

[0075] (2) Adjust the adjusting bolt of the lifting mechanism 6 so that the cut surface of the core 10 is close to the spray nozzle 441 of the spray head 44 and the air outlet 54;

[0076] (3) Start the main switch of the control system;

[0077] (4) Set the number of round trips of the spray head 44 and the air outlet 54 respectively;

[0078] (5) Start the variable speed motor 21, drive the worm shaft 23 to rotate to transmit power to the worm gear 24, and the worm gear 24 drives the transmission shaft 26 to move along the upper guide rail 1111 and the lower guide rail 1121 in cooperation with the second bearing towards the direction close to the variable speed motor 21 (assuming that at the initial moment, the worm gear 24 is located at Figure 1 the position shown), and then the transmission shaft 26 drives the fixed bracket to drive the spray head 44 and the air outlet 54 to move synchronously; at the same time, open the solenoid valve 42, and then start the hydraulic pump 47. The hydraulic pump 47 delivers water through the liquid supply pipeline to the spray head 44 to spray out in an atomized state to clean the cut surface of the core 10;

[0079] (6) When the light control probe 32 provided on the upper support plate 251 is opposite to the induction plate 31, the variable speed motor 21 reverses, and then drives the spray head 44 and the air outlet 54 to move synchronously away from the variable speed motor 21;

[0080] (7) When the cross-section of the core 10 is cleaned and the number of reciprocations of the nozzle 44 reaches the required value, the hydraulic pump 47 and the solenoid valve 42 are closed in sequence, and the cleaning process ends; switch to the drying mode, turn on the hot air blower 51, and reciprocate to dry the cross-section of the core 10;

[0081] (8) When the cross-section of the core 10 is dried by blowing and the number of reciprocations of the air outlet 54 ends, the variable speed motor 21 stops working;

[0082] (9) Remove the core tray 8 with the core 10, and place the core tray 8 with the core 10 on the core scanner to scan the core 10;

[0083] (10) According to needs, replace the core tray 8 with the core 10, and repeat steps 1 to 9.

[0084] As another implementation manner, when the core cleaning device is in use, it specifically includes the following steps:

[0085] (1) Place the core 10 to be cleaned into the core tray 8 and place it on the supporting plate 63 of the lifting mechanism 6. The cross-section of the core 10 faces the nozzle 441 of the nozzle 44 and the air outlet 54 of the air outlet;

[0086] (2) Adjust the adjusting bolt of the scissor lifting mechanism 6 so that the cross-section of the core 10 is close to the nozzle of the nozzle 44 and the air outlet 54;

[0087] (3) Start the main switch of the control system;

[0088] (4) Set the number of reciprocations of the nozzle 44;

[0089] (5) Turn on the control switch of the cleaning mechanism 4, turn on the solenoid valve 42, and start the hydraulic pump 47;

[0090] (6) Start the variable speed motor 21, drive the worm shaft 23 to rotate to transmit power to the worm wheel 24, and the worm wheel 24 drives the transmission shaft 26 to move along the upper guide rail 1111 and the lower guide rail 1121 in the direction close to the variable speed motor 21 under the cooperation of the second bearing. Furthermore, the transmission shaft 26 drives the fixed bracket to synchronously drive the nozzle 44 and the air outlet 54 to move synchronously, and the nozzle 44 cleans the cross-section of the core 10 during the movement;

[0091] (7) When the light control probe 32 on the upper support plate 251 faces the induction plate 31, the variable speed motor 21 reverses, and then drives the nozzle 44 and the air outlet 54 to move synchronously in the direction away from the variable speed motor 21;

[0092] (8) When the cross-section of the core 10 is cleaned and the number of reciprocations of the nozzle 44 reaches the required value, the hydraulic pump 47 and the solenoid valve 42 are closed in sequence, the cleaning process ends, and the variable speed motor 21 stops working;

[0093] (9) Set the number of round trips of the drying mechanism 5;

[0094] (10) Turn on the control switch of the drying mechanism 5, switch to the drying mode, start the hot air blower 51, and at the same time start the variable speed motor 21 to drive the worm and worm gear mechanism to act, so as to drive the transmission shaft 26 to move along the upper guide rail 1111 and the lower guide rail 1121 in the direction close to the variable speed motor 21 under the cooperation of the second bearing. Furthermore, the transmission shaft 26 drives the fixed bracket to drive the nozzle 44 and the air outlet 54 to move synchronously. During the movement, the air outlet 54 blows and dries the cut surface of the core 10;

[0095] (11) When the cut surface of the core 10 is dried and the number of round trips of the drying mechanism reaches the set value, the drying mode ends and the variable speed motor 21 stops working;

[0096] (12) Remove the core tray 8 containing the core 10, and place the core tray 8 containing the core 10 on the core scanner to scan the core 10;

[0097] (13) According to needs, replace the core tray 8 containing the core 10, and repeat steps 1 to 12.

[0098] As another embodiment, the reciprocating transmission mechanism can be a gear and rack mechanism. Among them, the rack is arranged on the power support and extends along the length direction of the core. The gear is sleeved on the transmission shaft through a bearing, and the gear is connected with a driving motor; alternatively, the transmission mechanism adopts a nut and screw mechanism. Among them, the screw is connected with the driving motor, and the transmission shaft is provided with a threaded hole matching the screw, and the screw is in threaded cooperation with the transmission shaft; of course, the reciprocating transmission mechanism can also be a linear motor. It should be understood that the specific transmission structure form adopted by the reciprocating transmission mechanism is reasonably selected according to the specific structure and layout space of the core cleaning device in this embodiment, and this embodiment does not limit this.

[0099] Embodiment 2 of the core cleaning device in the present invention:

[0100] The purpose of this embodiment is to provide a cleaning device for cylindrical core samples.

[0101] In this embodiment, the core bearing position is further configured with a rotating mechanism. Specifically, the rotating mechanism includes at least two rollers approaching each other and a driving motor for driving the rollers to rotate. A core bearing position for bearing a cylindrical core sample is formed between the rollers approaching each other. In use, the cylindrical core sample is placed between the two rollers, and the driving motor drives the rollers to rotate, thereby driving the core sample to rotate. Then, under the drive of the reciprocating transmission mechanism, the cleaning mechanism and the drying mechanism are used to clean the outer peripheral surface of the core sample. In this way, the cleaning mechanism and the drying mechanism with the reciprocating transmission mechanism can be used to clean and dry the outer peripheral surface of the cylindrical core sample.

[0102] It should be noted that in this embodiment, the specific structures of the mechanisms such as the reciprocating transmission mechanism, the cleaning mechanism, and the drying mechanism other than the rotating mechanism are the same as those in Embodiment 1 of the core cleaning device, and will not be described in detail here.

[0103] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention is subject to the claims. All equivalent structural changes made by using the description and drawings of the present invention should be included in the protection scope of the present invention by the same token.

Claims

1. A core cleaning device, comprising a core bearing assembly, a cleaning mechanism and a drying mechanism, wherein the core bearing assembly has a core bearing position, and is characterized in that: It further includes a reciprocating transmission mechanism and a fixing bracket connected to the reciprocating transmission mechanism for fixing the nozzle of the cleaning mechanism and the air outlet of the drying mechanism. The central axes of the nozzle and the air outlet are perpendicular to the central axis of the core bearing position and are arranged at intervals along the length extension direction of the core bearing position.

2. The core cleaning device according to claim 1, wherein: The nozzles and the air outlets are arranged in groups, and each group corresponds to one core bearing position.

3. The core cleaning device according to claim 2, characterized in that: Each group of the nozzles and the air outlets share one fixing bracket. The fixing bracket includes a vertical rod connected to the reciprocating transmission mechanism, and an upper fixing member and a lower fixing member arranged at intervals along the axial direction of the vertical rod. Corresponding positions on the upper fixing member and the lower fixing member are provided with fixing positions for fixing the nozzles and the air outlets. The liquid outlet end face of the nozzle and the air outlet end face of the air outlet are at the same height from the surface of the core.

4. The core cleaning device according to claim 1 or 2 or 3, characterized in that: The spray orifice of the nozzle is a linear structure, the width of the spray orifice is not less than the radial width of the core bearing position, and the width direction of the spray orifice is perpendicular to the central axis of the core bearing position.

5. The core cleaning device according to claim 1 or 2 or 3, characterized in that: The core bearing assembly includes a bearing box, and the bearing box has an arc-shaped bearing groove adapted to the shape of the core. A third drain hole is provided on the bearing groove.

6. The core cleaning device according to claim 5, wherein: The core bearing assembly further includes a core tray used in cooperation with the bearing box. The core tray has a main body portion adapted to the shape of the core and the arc-shaped bearing groove, and edge portions horizontally extending from the main body portion to both sides. A fourth drain hole is provided on the main body portion, and a scale is arranged on the edge portions.

7. The core cleaning device according to claim 6, characterized in that: The core bearing assembly is configured with a lifting mechanism to move the core closer to or away from the nozzle or the air outlet.

8. The core cleaning device according to claim 7, wherein: The core cleaning device is further provided with a liquid discharge channel for discharging the cleaning liquid and a waste liquid tank for collecting the waste liquid for cleaning the core. The waste liquid tank is configured with a tank cover plate. The liquid discharge channel includes a fourth drain hole, a third drain hole, a second drain hole provided on the lifting mechanism, and a first drain hole provided on the tank cover plate. The waste liquid after cleaning the core is sequentially collected in the waste liquid tank through the fourth drain hole, the third drain hole, the second drain hole and the first drain hole.

9. The core cleaning device according to claim 1 or 2 or 3, characterized in that: The reciprocating transmission mechanism is one of a worm and gear mechanism, a linear motor, a nut and screw mechanism or a rack and pinion mechanism.

10. The core cleaning device according to claim 1 or 2 or 3, characterized in that: The core bearing position is configured with a rotating mechanism. The rotating mechanism at least includes two rollers close to each other and a driving mechanism for driving the rollers to rotate, and the driving mechanism drives the rollers to rotate to make the core sample rotate circumferentially.

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