Mechanism for cleaning and grinding mud logging cuttings

Abstract

The utility model relates to a kind of mud logging rock debris grinding cleaning mechanism, wherein outer mill disc assembly is located on the outside of grinding device, and outer mill disc assembly includes movable outer cover plate, outer cover plate is equipped with outer mill disc, driving mill disc is equipped on grinding device, when sample grinding, driving mill disc and outer mill disc close and form grinding space, outer cover plate is equipped with sample inlet component, and the sample inlet component is equipped with sample inlet and the grinding space intercommunication, lower hopper component is located below driving mill disc, and lower hopper outside in lower hopper component is equipped with movable dynamic outer peripheral plate driven by outer cover plate, lower hopper inside is equipped with lower discharging guide plate swinging driven by dynamic outer peripheral plate, cleaning component is located on the upside of grinding device and is equipped with liftable cleaning brush, when cleaning, outer mill disc and driving mill disc open, and cleaning brush is lowered into between outer mill disc and driving mill disc. The utility model can realize the automatic grinding operation of rock debris sample and the automatic cleaning operation of driving mill disc and outer mill disc.

Description

Technical Field

[0001] This utility model relates to the field of logging detection, specifically a logging cuttings grinding and cleaning mechanism. Background Technology

[0002] Well logging is primarily used for oil and gas resource assessment. This involves using various measuring instruments during oil and gas drilling operations to acquire real-time data reflecting various aspects of the well, including downhole geological structure, oil and gas content, and drilling itself. Rock cuttings returned to the surface during drilling are crucial for understanding formation lithology and oil and gas reservoirs. For analysis, these cuttings need to be ground from granular to powder. However, current technology typically involves manual grinding of the cuttings, which is time-consuming, labor-intensive, and often affected by human factors, resulting in grinding quality that does not fully meet subsequent testing requirements.

[0003] With technological advancements, some logging cuttings grinding devices have emerged in existing technologies. For example, CN210051618U patent discloses a geological logging cuttings grinding device, which includes a chamber containing a pressure plate, grinding wheels, and other structures for crushing cuttings samples. Another example is CN215087831U patent, which discloses a geological logging cuttings grinding bowl device. This device designs the grinding chamber in an arc shape and uses a first and second grinding ball located within the chamber to grind the cuttings sample. However, these logging cuttings grinding devices are all individually installed and cannot achieve timely automatic cleaning to meet the needs of automated inspection lines. Utility Model Content

[0004] The purpose of this utility model is to provide a logging cuttings grinding and cleaning mechanism, which can realize automatic grinding of cuttings samples and automatic cleaning of the active grinding disc and the external grinding disc. It not only improves the grinding efficiency of the samples, but also ensures the quality of the sample grinding, and can also meet the needs of automated testing lines.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A logging cuttings grinding and cleaning mechanism includes a sample feeding assembly, a grinding device, a cleaning assembly, a hopper assembly, and an outer grinding disc assembly. The outer grinding disc assembly is located outside the grinding device and includes a movable outer cover plate. An outer grinding disc is mounted on the outer cover plate. An active grinding disc is mounted on the grinding device. During sample grinding, the outer cover plate moves inward to close, forming a grinding space between the active grinding disc and the outer grinding disc. The sample feeding assembly is located on the outer cover plate and has a sample inlet communicating with the grinding space. The hopper assembly is located below the active grinding disc. The hopper assembly has a movable outer peripheral plate that moves via the outer cover plate on its outer side. The hopper has a discharge guide plate that swings via the movable outer peripheral plate inside it. The cleaning assembly is located on the upper side of the grinding device and has a liftable cleaning brush. During cleaning, the outer grinding disc and the active grinding disc open, and the cleaning brush descends into the gap between the outer grinding disc and the active grinding disc.

[0007] The sample feeding assembly includes a sample feeding hopper, and the upper end of the sample feeding hopper is provided with an openable hopper door. The lower end of the sample feeding hopper is provided with the sample inlet. The sample feeding hopper is installed on the outer cover plate, and the sample inlet passes through the outer cover plate. A hopper vibration motor is provided on the side of the sample feeding hopper away from the outer cover plate. In addition, a high-pressure air outlet is provided on one side of the sample feeding hopper.

[0008] The upper end of the sample feeding hopper is provided with a drive mounting frame, and both sides of the drive mounting frame are provided with connecting rod assemblies connected to the hopper door. The connecting rod assembly on either side is driven to swing by the hopper door drive device provided on the drive mounting frame.

[0009] The linkage assembly includes an active linkage that is driven to swing by the hopper gate drive device and a driven linkage that swings with the active linkage and the hopper gate. In addition, a hopper gate positioning detection switch is provided on either side plate of the drive mounting frame.

[0010] The outer grinding disc assembly includes an outer grinding disc cylinder, an outer cover plate guide rod, and guide limiting blocks. The outer grinding disc cylinder is located on one side of the grinding device, and the power shaft end of the outer grinding disc cylinder is fixedly connected to the outer cover plate. Each guide limiting block is located on the device housing of the grinding device, and a movable outer cover plate guide rod is inserted into each guide limiting block. The front end of the outer cover plate guide rod is fixedly connected to the outer cover plate, and the lower side of the outer cover plate is fixedly connected to the moving outer peripheral plate.

[0011] The grinding device has a grinding disc moving seat inside its housing. The grinding disc moving seat is equipped with a grinding disc motor, a grinding disc drive pulley, a grinding disc driven pulley, a grinding disc transmission belt, a driven pulley mounting seat, and a grinding disc shaft mounting seat. The grinding disc drive pulley is located on the power shaft of the grinding disc motor, and the axle of the grinding disc driven pulley is located on the driven pulley mounting seat. The grinding disc drive pulley and the grinding disc driven pulley are connected by the grinding disc transmission belt. The drive grinding disc shaft is rotatably mounted on the grinding disc shaft mounting seat, and the drive grinding disc shaft is connected to the axle of the grinding disc driven pulley by a coupling.

[0012] The grinding disc moving seat is provided with a moving motor and a lead screw below it, and the lead screw is driven to rotate by the moving motor. The grinding disc moving seat is provided with a lead screw nut on the lower side and is sleeved on the lead screw.

[0013] Both sides of the feeding guide plate are provided with baffle guide grooves, the inner wall of the feeding hopper is provided with a baffle guide shaft, and the baffle guide shaft is located in the baffle guide groove on the corresponding side. The upper end of the feeding guide plate is rotatably connected to the upper end of the moving outer plate through a baffle hinge shaft. The feeding hopper is provided with a guide opening for the feeding guide plate to rotate and swing on the side near the moving outer plate. A feeding vibration motor is provided on one side of the feeding hopper.

[0014] The lower outlet of the hopper is connected to the feeding conversion assembly, which includes a conversion control valve, a feeding pipe, and a dust suction pipe. The feeding pipe, the dust suction pipe, and the lower outlet of the hopper are respectively connected to the corresponding ports on the conversion control valve.

[0015] The cleaning assembly includes a cleaning mounting bracket, a cleaning lifting cylinder, and a lifting frame. The cleaning mounting bracket is mounted on the upper side of the grinding device, the cleaning lifting cylinder is mounted on the cleaning mounting bracket, and the lifting frame is driven to move up and down by the cleaning lifting cylinder. The lifting frame is equipped with a cleaning brush driving device, a first pulley, a second pulley, and a cleaning brush transmission belt. The first pulley is driven to rotate by the cleaning brush driving device, and the first pulley is connected to the second pulley through the cleaning brush transmission belt. The axles at both ends of the second pulley are respectively connected to the cleaning brushes on the corresponding sides.

[0016] The advantages and positive effects of this utility model are as follows:

[0017] 1. This utility model can realize automatic sample feeding and automatic grinding of rock cuttings. During grinding, the hopper vibration motor in the sample feeding component works with vibration to gradually output the sample in the sample feeding hopper, while the active grinding disc in the grinding device rotates and the outer grinding disc in the outer grinding disc assembly remains stationary, so that the active grinding disc and the outer grinding disc form a relative rotation to complete the sample grinding operation.

[0018] 2. The active grinding disc of this utility model can be moved by the grinding disc moving seat to adjust the gap between it and the outer grinding disc, thereby adjusting the fineness of sample grinding as needed, and thus ensuring the quality of sample grinding.

[0019] 3. This invention allows for timely cleaning after the previous set of samples has been ground to avoid affecting the next set of samples, thereby further ensuring grinding quality and meeting the needs of automated testing lines. During cleaning, the outer grinding disc opens to allow the cleaning brush to enter between the outer and active grinding discs for cleaning. Simultaneously, the outer grinding disc drives the moving outer plate in the hopper assembly to expand the feeding range. The feeding guide plate in the hopper assembly swings through the moving outer plate to expand the sample receiving range, ensuring that all residual samples cleaned by the cleaning brush enter the hopper without overflowing.

[0020] 4. The feeding conversion component of this utility model can be used in conjunction with grinding and cleaning operations to make timely conversions, thereby ensuring the smooth output of samples.

[0021] 5. This utility model has a high-pressure air outlet on one side of the sample hopper to achieve a secondary cleaning operation before the next set of samples is injected, thereby further ensuring thorough cleaning. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 for Figure 1 A schematic diagram of the middle sample injection assembly.

[0024] Figure 3 for Figure 2 Main view of the injection component.

[0025] Figure 4 for Figure 2 A cross-sectional view of the injection assembly.

[0026] Figure 5 for Figure 1 A schematic diagram showing the state of the outer grinding disc assembly on the outside of the grinding device when it is open.

[0027] Figure 6 for Figure 5 A cross-sectional view of the outer grinding disc assembly on the outside of the grinding device when it is open.

[0028] Figure 7 for Figure 6 Cross-sectional view of the Chinese and foreign grinding disc assembly when closed.

[0029] Figure 8 for Figure 5A schematic diagram of the internal structure of the grinding device.

[0030] Figure 9 for Figure 1 Schematic diagram of the middle and lower hopper assembly.

[0031] Figure 10 for Figure 9 Working status diagram of the middle and lower hopper assembly Figure 1 ,

[0032] Figure 11 for Figure 9 Tooling status diagram of the middle and lower hopper assembly Figure 2 ,

[0033] Figure 12 for Figure 1 The structural cross-sectional view at point A in the middle.

[0034] Wherein, 1 is the sample feeding assembly, 101 is the hopper gate, 102 is the sample feeding hopper, 1021 is the sample inlet, 103 is the hopper gate drive device, 104 is the hopper vibration motor, 105 is the drive mounting bracket, 106 is the active linkage, 107 is the driven linkage, 108 is the hopper gate position detection switch, 109 is the sample feeding tray, 110 is the high-pressure air outlet, 2 is the grinding device, 201 is the active grinding disc, and 2011 is the active grinding disc. Shaft, 202 is the device housing, 203 is the grinding disc motor, 204 is the grinding disc drive belt, 205 is the grinding disc moving seat, 2051 is the driven wheel mounting seat, 2052 is the grinding disc shaft mounting seat, 2053 is the lead screw nut seat, 2054 is the moving slider, 206 is the moving motor, 207 is the lead screw, 208 is the sliding support, 209 is the coupling, 3 is the cleaning component, 301 is the cleaning mounting bracket, 3011 is the lifting guide sleeve, 3 02 is the cleaning lifting cylinder, 303 is the lifting frame, 3031 is the lifting connecting plate, 3032 is the lifting guide shaft, 304 is the cleaning brush, 305 is the cleaning brush drive device, 306 is the first pulley, 307 is the cleaning brush drive belt, 308 is the second pulley, 4 is the hopper assembly, 401 is the moving outer peripheral plate, 402 is the hopper guide plate, 4021 is the baffle hinge shaft, 4022 is the baffle guide groove, and 403 is the hopper. 4031 is the baffle guide shaft, 4032 is the guide opening, 404 is the feeding vibration motor, 5 is the outer grinding disc assembly, 501 is the outer grinding disc cylinder, 502 is the outer cover plate, 503 is the outer grinding disc, 504 is the outer grinding disc guide rod, 505 is the guide limit block, 6 is the feeding conversion assembly, 601 is the feeding pipe, 602 is the dust suction pipe, 603 is the conversion control valve, 7 is the first mounting plate, 8 is the second mounting plate, and 9 is the grinding space. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings.

[0036] like Figures 1-12 As shown, this utility model includes a sample feeding assembly 1, a grinding device 2, a cleaning assembly 3, a feeding hopper assembly 4, and an outer grinding disc assembly 5, wherein... Figures 5-7 As shown, the outer grinding disc assembly 5 is located outside the grinding device 2, and the outer grinding disc assembly 5 includes a movable outer cover plate 502. An outer grinding disc 503 is provided on the outer cover plate 502. The grinding device 2 is provided with an active grinding disc 201. During sample grinding, the outer cover plate 502 moves inward to close, forming a grinding space 9 between the active grinding disc 201 and the outer grinding disc 503. A sample inlet assembly 1 is provided on the outer cover plate 502, and the sample inlet assembly 1 has a sample inlet 1021 communicating with the grinding space 9. A hopper assembly 4 is located below the active grinding disc 201, and as shown... Figures 9-11 As shown, the feeding hopper assembly 4 includes a feeding hopper 403. The outer side of the feeding hopper 403 is provided with a movable outer peripheral plate 401 that is driven to move by the outer cover plate 502. The inside of the feeding hopper 403 is provided with a feeding guide plate 402 that is driven to swing by the movable outer peripheral plate 401. The cleaning assembly 3 is located on the upper side of the grinding device 2, and the cleaning assembly 3 is provided with a lifting cleaning brush 304. During cleaning, the outer grinding disc 503 and the active grinding disc 201 open, and the cleaning brush 304 descends into the gap between the outer grinding disc 503 and the active grinding disc 201.

[0037] This invention comprises two parts: grinding and cleaning. During sample grinding, the active grinding disc 201 and the outer grinding disc 503 close to form a grinding space 9. The sample from the sample inlet 1 is then input into the grinding space 9 through the sample inlet 1021. The active grinding disc 201 rotates while the outer grinding disc 503 remains stationary, creating relative rotation to grind the sample. The ground sample falls into the hopper 403 along the discharge guide plate 402. During cleaning, the outer grinding disc 503 moves outward and opens, allowing the cleaning brush 304 to enter the gap between the active grinding disc 201 and the outer grinding disc 503. The cleaning brush 304 then descends into the gap between the outer grinding disc 503 and the active grinding disc 201, cleaning both discs. Figure 10 As shown, the moving outer peripheral plate 401 in the hopper assembly 4 is driven to move by the outer cover plate 502, thereby cooperating with the outer grinding disc 503 to open and expand the feeding range at the upper end of the hopper assembly 4. At the same time, the feeding guide plate 402 in the hopper assembly 4 also swings to expand the sample receiving range. This ensures that the residual sample cleaned by the cleaning brush 304 can move along the feeding guide plate 402 and fall into the hopper 403.

[0038] like Figures 2-4As shown, in this embodiment, the sample feeding assembly 1 includes a sample feeding hopper 102, and the upper end of the sample feeding hopper 102 is provided with an openable hopper door 101. The lower end of the sample feeding hopper 102 is provided with a sample inlet 1021. The sample feeding hopper 102 is mounted on the outer cover plate 502, and the sample inlet 1021 passes through the outer cover plate 502. A hopper vibration motor 104 is provided on the side of the sample feeding hopper 102 away from the outer cover plate 502. During sample feeding, as described in this utility model... Figure 7 As shown, the outer grinding disc 503 and the active grinding disc 201 are in a closed state. At this time, the hopper door 101 is open, and the sample tray 109 transferred from the previous station is placed on the upper end of the sample hopper 102 by an external robotic arm, so that the sample on the sample tray 109 falls into the sample hopper 102 under the action of gravity. Then, the external robotic arm removes the sample tray 109, and the hopper door 101 closes again. During sample grinding, the active grinding disc 201 rotates, and the hopper vibration motor 104 vibrates to gradually input the sample in the sample hopper 102 into the grinding space 9 through the sample inlet 1021. The hopper vibration motor 104 is a commercially available product.

[0039] like Figures 2-4 As shown, in this embodiment, the upper end of the sample feeding hopper 102 is provided with a drive mounting frame 105, and both sides of the drive mounting frame 105 are provided with connecting rod assemblies connected to the hopper door 101. The connecting rod assembly on either side is driven to swing by the hopper door drive device 103 located on the drive mounting frame 105, thereby realizing the opening and closing of the hopper door 101. In this embodiment, the connecting rod assembly includes an active connecting rod 106 driven to swing by the hopper door drive device 103 and a driven connecting rod 107 that swings with the active connecting rod 106 and the hopper door 101. Additionally, a hopper door position detection switch 108 is provided on either side plate of the drive mounting frame 105 to detect in real time whether the hopper door 101 is open or closed. The hopper door position detection switch 108 is a commercially available product. The hopper door drive device 103 can be a combination of a motor and a right-angle reducer, wherein one end of the active connecting rod 106 is connected to the power shaft end of the right-angle reducer.

[0040] like Figure 3 As shown, in this embodiment, a high-pressure air outlet 110 is provided on one side of the sample feeding hopper 102 for blowing air into the sample feeding hopper 102 and the grinding space 9 to achieve secondary cleaning.

[0041] like Figures 5-7As shown, in this embodiment, the outer grinding disc assembly 5 includes an outer grinding disc cylinder 501, an outer grinding disc guide rod 504, and a guide limiting block 505. The outer grinding disc cylinder 501 is located on one side of the grinding device 2, and the power shaft end of the outer grinding disc cylinder 501 is fixedly connected to the outer cover plate 502. In this embodiment, a first mounting plate 7 is provided on one side of the grinding device 2, and the outer grinding disc cylinder 501 is located on the first mounting plate 7. Each guide limiting block 505 is located on the device housing 202 of the grinding device 2, and a movable outer grinding disc guide rod 504 is inserted into each guide limiting block 505. The front end of the outer grinding disc guide rod 504 is fixedly connected to the outer cover plate 502, and the lower side of the outer cover plate 502 is fixedly connected to the moving outer peripheral plate 401. When this utility model is in operation, the outer grinding disc cylinder 501 drives the outer cover plate 502 to move, and the outer grinding disc guide rod 504 follows the extension and retraction of the outer cover plate 502 to play a guiding role. The movement of the outer cover plate 502 drives the lower moving outer peripheral plate 401 to move.

[0042] like Figure 8 As shown, in this embodiment, the grinding device 2 has a grinding disc moving seat 205 inside its housing 202. The grinding disc moving seat 205 is equipped with a grinding disc motor 203, a grinding disc drive pulley, a grinding disc driven pulley, a grinding disc transmission belt 204, a driven pulley mounting seat 2051, and a grinding disc shaft mounting seat 2052. The grinding disc drive pulley is mounted on the power shaft of the grinding disc motor 203, and the axle of the grinding disc driven pulley is mounted on the driven pulley mounting seat 2051. The grinding disc drive pulley and the grinding disc driven pulley are connected by the grinding disc transmission belt 204. The drive grinding disc shaft 2011 of the drive grinding disc 201 is rotatably mounted on the grinding disc shaft mounting seat 2052, and the drive grinding disc shaft 2011 is connected to the axle of the driven grinding disc pulley by a coupling 209. In operation, the active grinding disc 201, along with the grinding disc motor 203, the active grinding disc pulley, the driven grinding disc pulley, and the grinding disc transmission belt 204, can be moved and adjusted via the grinding disc moving seat 205. This allows for adjustment of the distance between the active grinding disc 201 and the outer grinding disc 503, thus regulating the grinding fineness of the sample. Furthermore, during sample grinding, the grinding disc motor 203 transmits torque through the active grinding disc pulley, the grinding disc transmission belt 204, and the driven grinding disc pulley to drive the active grinding disc 201 to rotate, achieving the grinding process.

[0043] like Figure 8As shown, in this embodiment, a moving motor 206 and a lead screw 207 are provided below the grinding disc moving seat 205, and the lead screw 207 is driven to rotate by the moving motor 206. A lead screw nut 2053 is provided on the lower side of the grinding disc moving seat 205 and is sleeved on the lead screw 207. The moving motor 206 transmits torque through the lead screw 207 and the lead screw nut 2053 to drive the grinding disc moving seat 205 to move.

[0044] like Figure 8 As shown, in this embodiment, the device housing 202 is provided with a sliding support 208 inside, and the sliding support 208 is provided with a movable slide rail. The grinding disc moving seat 205 is provided with a movable slider 2054 on its lower side, which cooperates with the movable slide rail.

[0045] like Figures 9-11 As shown, in this embodiment, both sides of the feeding guide plate 402 are provided with baffle guide grooves 4022, and the inner wall of the feeding hopper 403 is provided with a baffle guide shaft 4031. The baffle guide shaft 4031 is located in the baffle guide groove 4022 on the corresponding side. The upper end of the feeding guide plate 402 is rotatably connected to the upper end of the moving outer peripheral plate 401 through a baffle hinge shaft 4021. When this utility model is working, when the moving outer peripheral plate 401 is driven to move by the outer cover plate 502, the upper end of the feeding guide plate 402 moves with the moving outer peripheral plate 401. At the same time, the feeding guide plate 402 rotates around the baffle guide shaft 4031. At this time, the baffle guide shaft 4031 slides relative to the baffle guide groove 4022 on the corresponding side, and as shown... Figure 10 As shown, the feeding guide plate 402 is composed of Figure 11 The state shown becomes Figure 10 As shown, this expands the sample receiving range of the feeding guide plate 402, ensuring that the sample can only move along the feeding guide plate 402 and fall into the hopper, thereby preventing the sample from overflowing from the lower opening of the moving outer peripheral plate 401.

[0046] like Figures 9-11 As shown, in this embodiment, a feeding vibration motor 404 is provided on one side of the feeding hopper 403 to vibrate and output the sample remaining on the inner wall of the feeding hopper 403.

[0047] like Figure 11 As shown, in this embodiment, the hopper 403 has a guide opening 4032 on the side near the moving outer plate 401 for the hopper guide plate 402 to rotate and swing. Furthermore, the moving outer plate 401 can be slidably connected to the hopper 403 via a slider rail assembly or other suitable structure, which is a well-known technology in the art.

[0048] like Figures 9-11As shown, in this embodiment, the lower output port of the feeding hopper 403 is connected to the feeding conversion assembly 6. The feeding conversion assembly 6 includes a conversion control valve 603, a feeding pipe 601, and a suction pipe 602. The feeding pipe 601, the suction pipe 602, and the lower output port of the feeding hopper 403 are respectively connected to corresponding ports on the conversion control valve 603. When the sample is being ground, the conversion control valve 603 controls the feeding pipe 601 to open and the suction pipe 602 to close. At this time, the sample falls into the feeding conversion assembly 6 along the feeding guide plate 402 and is directly output through the feeding pipe 601. When the active grinding disc 201 and the outer grinding disc 503 open and are cleaned by the cleaning brush 304 in the cleaning assembly 3, the conversion control valve 603 controls the feeding pipe 601 to close and the suction pipe 602 to open. At this time, the residual sample is sucked away and discharged through the suction pipe 602. The switching control valve 603 is a technology known in the art and is a commercially available product.

[0049] like Figure 1 As shown, in this embodiment, the lower side of the frame of the grinding device 2 is provided with a second mounting plate 8, and the upper end of the feeding conversion component 6 is mounted on the second mounting plate 8.

[0050] like Figure 1 As shown, in this embodiment, the cleaning component 3 includes a cleaning mounting bracket 301, a cleaning lifting cylinder 302, and a lifting frame 303. The cleaning mounting bracket 301 is located on the upper side of the grinding device 2, the cleaning lifting cylinder 302 is located on the cleaning mounting bracket 301, and the lifting frame 303 is driven to rise and fall by the cleaning lifting cylinder 302. Figure 12 As shown, the lifting frame 303 is equipped with a cleaning brush drive device 305, a first pulley 306, a second pulley 308, and a cleaning brush transmission belt 307. The first pulley 306 is driven to rotate by the cleaning brush drive device 305, and is connected to the second pulley 308 via the cleaning brush transmission belt 307. The axles at both ends of the second pulley 308 are respectively connected to the corresponding cleaning brushes 304. The cleaning brush drive device 305 transmits torque through the first pulley 306, the cleaning brush transmission belt 307, and the second pulley 308 to drive the cleaning brushes 304 on both sides of the lower end of the lifting frame 303 to rotate, thus achieving the cleaning operation. The cleaning brush drive device 305 can adopt a motor + right-angle reducer structure, with the first pulley 306 mounted on the power shaft of the right-angle reducer.

[0051] like Figure 1 and Figure 12As shown, in this embodiment, the lifting frame 303 is provided with a lifting connecting plate 3031 which is fixedly connected to the power shaft end of the cleaning lifting cylinder 302. In addition, the cleaning mounting frame 301 is provided with a lifting guide sleeve 3011, and the lifting frame 303 is provided with a lifting guide shaft 3032. The lifting guide shaft 3032 passes through the corresponding lifting guide sleeve 3011 to ensure that the lifting frame 303 together with the cleaning brush 304 at the lower end can be lifted vertically.

[0052] The working principle of this utility model is as follows:

[0053] The present invention includes the following steps in operation:

[0054] Step 1: The outer cover plate 502 moves inward to close, so that a grinding space 9 is formed between the active grinding disc 201 and the outer grinding disc 503.

[0055] Step 2: The hopper door 101 at the top of the sample hopper 102 is opened, and the sample tray 109 transferred from the previous station is placed on the top of the sample hopper 102 by the action of the external robot arm, so that the sample falls under the action of gravity. Then the external robot arm takes away the sample tray 109, and the hopper door 101 is closed again.

[0056] Step 4: The active grinding disc 201 is moved by the grinding disc moving seat 205 according to actual needs to finely adjust the distance between it and the outer grinding disc 503, so as to adjust the grinding fineness of the sample.

[0057] Step 5: The active grinding disc 201 starts to rotate, and at the same time, the hopper vibration motor 104 starts to vibrate at a set frequency so that the sample in the sample feeding hopper 102 is vibrated and gradually falls into the grinding space 9. At this time, the outer grinding disc 503 does not rotate, so that the active grinding disc 201 and the outer grinding disc 503 can rotate relative to each other, thereby realizing the grinding operation of the sample.

[0058] In addition, in this step, the conversion control valve 603 in the feeding conversion component 6 controls the opening of the feeding pipe 601 and controls the closing of the dust suction pipe 602, so that the sample is fed while being ground, and the sample that has completed grinding is directly output through the feeding pipe 601 to the next station.

[0059] Step Six: After all the sample in the sample hopper 102 has been ground and output through the discharge pipe 601, the outer cover plate 502 drives the outer grinding disc 503 to move outward and open. The distance between the active grinding disc 201 and the outer grinding disc 503 after opening must ensure that the subsequent cleaning brush 304 can enter. At the same time, the outer cover plate 502 drives the moving outer peripheral plate 401 in the discharge hopper assembly 4 to move, so as to cooperate with the opening of the outer grinding disc 503 to expand the feeding range at the upper end of the discharge hopper assembly 4. The discharge guide plate 402 in the discharge hopper assembly 4 is also driven by the moving outer peripheral plate 401 to swing in coordination, so as to expand the sample receiving range. This can ensure that the residual sample cleaned by the cleaning brush 304 can fall into the discharge hopper 403 along the discharge guide plate 402 without sample overflow.

[0060] Step 7: The lifting frame 303 in the cleaning component 3 drives the cleaning brush 304 to descend and enter between the active grinding disc 201 and the outer grinding disc 503. Then, the cleaning brush drive device 305 starts to drive the cleaning brushes 304 on both sides of the lower end of the lifting frame 303 to rotate and respectively realize the cleaning operation of the active grinding disc 201 and the outer grinding disc 503.

[0061] In addition, in this step, the conversion control valve 603 in the feeding conversion component 6 controls the feeding pipe 601 to close and controls the dust suction pipe 602 to open, so that the cleaned sample can be discharged by the dust suction device through the dust suction pipe 602.

[0062] Step 8: After cleaning, the cleaning brush 304 rises back to its original position, and then the outer cover plate 502 moves inward again to close so that a grinding space 9 is formed between the active grinding disc 201 and the outer grinding disc 503. Then, the high-pressure air outlet 110 on one side of the sample hopper 102 starts blowing air to achieve secondary cleaning to ensure that there is no sample residue.

[0063] Step 9: Start the next feeding cycle.

[0064] This invention is used for grinding logging cuttings. The sample moisture content must be <1%. Otherwise, if the sample moisture content is too high, the sample will stick to the grinding disc and cannot fall off during grinding. When the active grinding disc 201 and the outer grinding disc 503 are open, the active grinding disc 201 is not allowed to rotate to prevent safety accidents. When the active grinding disc 201 and the outer grinding disc 503 are being cleaned, the cleaning brush 304 needs to rotate alternately in both directions to prevent residual sample in dead corners, which would affect the analysis of the next set of samples. The device housing 202 on the outside of the active grinding disc 201 and the outer cover plate 502 on the outside of the outer grinding disc 503 are provided with blocking rubber strips to scrape off the sample on the cleaning brush 304 when it rises, thereby further preventing sample spillage.

Claims

1. A logging cuttings grinding and cleaning mechanism, characterized in that: The device includes a sample inlet assembly (1), a grinding device (2), a cleaning assembly (3), a hopper assembly (4), and an outer grinding disc assembly (5). The outer grinding disc assembly (5) is located outside the grinding device (2), and the outer grinding disc assembly (5) includes a movable outer cover plate (502). An outer grinding disc (503) is provided on the outer cover plate (502). An active grinding disc (201) is provided on the grinding device (2). When the sample is ground, the outer cover plate (502) moves inward to close, and a grinding space (9) is formed between the active grinding disc (201) and the outer grinding disc (503). The sample inlet assembly (1) is provided on the outer cover plate (502), and the sample inlet assembly (1) is provided with a sample inlet (1021). The grinding space (9) is connected to the grinding space (9). The feeding hopper assembly (4) is located below the active grinding disc (201). The feeding hopper (403) in the feeding hopper assembly (4) has a moving outer peripheral plate (401) that is driven to move by the outer cover plate (502) on the outside. The feeding hopper (403) has a feeding guide plate (402) that is driven to swing by the moving outer peripheral plate (401) inside. The cleaning assembly (3) is located on the upper side of the grinding device (2) and has a lifting cleaning brush (304). When cleaning, the outer grinding disc (503) and the active grinding disc (201) open, and the cleaning brush (304) descends into the gap between the outer grinding disc (503) and the active grinding disc (201).

2. The logging cuttings grinding and cleaning mechanism according to claim 1, characterized in that: The sample feeding assembly (1) includes a sample feeding hopper (102), and the upper end of the sample feeding hopper (102) is provided with an openable hopper door (101). The lower end of the sample feeding hopper (102) is provided with the sample inlet (1021). The sample feeding hopper (102) is installed on the outer cover plate (502), and the sample inlet (1021) passes through the outer cover plate (502). A hopper vibration motor (104) is provided on the side of the sample feeding hopper (102) away from the outer cover plate (502). In addition, a high-pressure air outlet (110) is provided on one side of the sample feeding hopper (102).

3. The logging cuttings grinding and cleaning mechanism according to claim 2, characterized in that: The upper end of the sample feeding hopper (102) is provided with a drive mounting frame (105), and both sides of the drive mounting frame (105) are provided with connecting rod assemblies connected to the hopper door (101). The connecting rod assembly on either side is driven to swing by the hopper door drive device (103) provided on the drive mounting frame (105).

4. The logging cuttings grinding and cleaning mechanism according to claim 3, characterized in that: The linkage assembly includes an active linkage (106) that is driven to swing by the hopper gate drive device (103) and a driven linkage (107) that swings with the active linkage (106) and the hopper gate (101). In addition, a hopper gate position detection switch (108) is provided on either side plate of the drive mounting bracket (105).

5. The logging cuttings grinding and cleaning mechanism according to claim 1, characterized in that: The outer grinding disc assembly (5) includes an outer grinding disc cylinder (501), an outer cover plate guide rod (504), and a guide limiting block (505). The outer grinding disc cylinder (501) is located on one side of the grinding device (2), and the power shaft end of the outer grinding disc cylinder (501) is fixedly connected to the outer cover plate (502). Each guide limiting block (505) is located on the device housing (202) of the grinding device (2), and a movable outer cover plate guide rod (504) is inserted into each guide limiting block (505). The front end of the outer cover plate guide rod (504) is fixedly connected to the outer cover plate (502), and the lower side of the outer cover plate (502) is fixedly connected to the moving outer peripheral plate (401).

6. The logging cuttings grinding and cleaning mechanism according to claim 1, characterized in that: The grinding device (2) has a grinding disc moving seat (205) inside its housing (202). The grinding disc moving seat (205) is equipped with a grinding disc motor (203), a grinding disc drive pulley, a grinding disc driven pulley, a grinding disc transmission belt (204), a driven wheel mounting seat (2051), and a grinding disc shaft mounting seat (2052). The grinding disc drive pulley is located on the power shaft of the grinding disc motor (203), and the axle of the grinding disc driven pulley is located on the driven wheel mounting seat (2051). The grinding disc drive pulley and the grinding disc driven pulley are connected by the grinding disc transmission belt (204). The drive grinding disc shaft (2011) of the drive grinding disc (201) is rotatably mounted on the grinding disc shaft mounting seat (2052), and the drive grinding disc shaft (2011) is connected to the axle of the grinding disc driven pulley by a coupling (209).

7. The logging cuttings grinding and cleaning mechanism according to claim 6, characterized in that: The grinding disc moving seat (205) is provided with a moving motor (206) and a lead screw (207) below it, and the lead screw (207) is driven to rotate by the moving motor (206). The grinding disc moving seat (205) is provided with a lead screw nut (2053) on the lower side of the grinding disc moving seat (205) and is sleeved on the lead screw (207).

8. The logging cuttings grinding and cleaning mechanism according to claim 1, characterized in that: Both sides of the feeding guide plate (402) are provided with baffle guide grooves (4022), and the inner wall of the feeding hopper (403) is provided with a baffle guide shaft (4031), and the baffle guide shaft (4031) is located in the baffle guide groove (4022) on the corresponding side. The upper end of the feeding guide plate (402) is rotatably connected to the upper end of the moving outer peripheral plate (401) through a baffle hinge shaft (4021). The feeding hopper (403) is provided with a guide opening (4032) on the side near the moving outer peripheral plate (401) for the feeding guide plate (402) to rotate and swing. A feeding vibration motor (404) is provided on one side of the feeding hopper (403).

9. The logging cuttings grinding and cleaning mechanism according to claim 1, characterized in that: The lower outlet of the hopper (403) is connected to the feeding conversion assembly (6). The feeding conversion assembly (6) includes a conversion control valve (603), a feeding pipe (601), and a dust suction pipe (602). The feeding pipe (601), the dust suction pipe (602), and the lower outlet of the hopper (403) are respectively connected to the corresponding ports on the conversion control valve (603).

10. The logging cuttings grinding and cleaning mechanism according to claim 1, characterized in that: The cleaning assembly (3) includes a cleaning mounting bracket (301), a cleaning lifting cylinder (302), and a lifting frame (303). The cleaning mounting bracket (301) is located on the upper side of the grinding device (2), the cleaning lifting cylinder (302) is located on the cleaning mounting bracket (301), and the lifting frame (303) is driven to lift by the cleaning lifting cylinder (302). The lifting frame (303) is provided with a cleaning brush driving device (305), a first pulley (306), a second pulley (308), and a cleaning brush transmission belt (307). The first pulley (306) is driven to rotate by the cleaning brush driving device (305), and the first pulley (306) is connected to the second pulley (308) through the cleaning brush transmission belt (307). The axles at both ends of the second pulley (308) are respectively connected to the cleaning brushes (304) on the corresponding sides.

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