Sand filling device for physical simulation experiment sand filling model pipe and using method

Abstract

The application discloses a kind of automatic sand filling device and use method for sand filling model pipe of physical simulation experiment, belong to sand filling model pipe technical field, it includes placing rack, the upper surface of the placing rack is provided with excitation component, the upper surface of the excitation component is provided with first bearing, and the inner wall of the first bearing is provided with placing cylinder.The automatic sand filling device for sand filling model pipe of physical simulation experiment is provided with excitation component, connecting drive component, placing cylinder, blanking head, first magnetic block, pin shaft, pressing plate, half gear drive component, gear and sliding rod, at this time blanking head is rotated downward to not be located in the sand filling model pipe directly above, when the tooth and half gear drive component are separated, pressing plate is quickly moved downward to knock, and excitation component is vibrated to placing cylinder and sand filling model pipe, to ensure that sand filling process is more dense, and the filling process of sand filling model pipe is convenient, efficient, to ensure the overall filling effect and efficiency to some extent.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sand filling model pipe, and particularly relates to a sand filling model pipe automatic sand filling device for physical simulation experiment and a use method. BACKGROUND

[0002] In the process of oilfield development and reservoir research, the physical parameters of reservoir rocks and fluids are important basis for preparing oil and gas field development and calculating reserves, researching reservoir properties, comparing oil layers and analyzing oilfield dynamics. However, oilfield development experiments are the main means to obtain the physical parameters of rocks, fluids and the joint action of fluids and rocks. However, the sand filling model experiment is an important means of indoor physical simulation experiment.

[0003] The goal of maximizing oil recovery and obtaining as much oil reserves as possible guides the direction of oil and gas field development engineering in the petroleum industry. Due to the particularity of oil exploitation, scientific researchers in the industry need to conduct a large number of indoor simulation experiments to draw conclusions to guide field application, which makes indoor simulation experiment equipment widely used in the petroleum industry. For example, the sand filling model pipe is used in indoor simulation experiments such as fracture evaluation experiment, microbial oil displacement experiment and heavy oil thermal recovery experiment.

[0004] The sand filling model pipe is composed of a body and two cap joint adapters located at both ends of the body. Different filling materials (usually spherical solid particles such as quartz sand; liquid can also be filled) are filled in the body to simulate the formation under different experimental conditions (such as changing the pressure at the inlet and outlet, and the fluid flow) to obtain the permeability parameter of the formation rock under the corresponding condition. The whole sand filling model pipe is usually made of metal material, and the inner wall of the body is specially polished to be rough, so that the simulation experiment is more close to the actual conditions of the formation. At present, the laboratory usually uses a sand filling model pipe with a body length of 1 m and a diameter of 2.5 cm for experiments; according to the different adapters at both ends of the sand filling model pipe, threaded connection, clamp connection and other ways can be used to splice multiple sand filling model pipes together, which can extend the sand filling pipe to different degrees and lengthen the distance of fluid passing through the pipe to better meet the actual environment of the formation and improve the accuracy of the simulation experiment results.

[0005] The sand filling model pipe needs to fill quartz sand, but the existing operation process is partially performed by manual layer-by-layer sand filling operation by the staff. The quartz sand is filled layer by layer into the sand filling model pipe, and at the same time of filling, a hammer is used to knock the sand filling quartz pipe to achieve the vibration and compaction effect. However, the knocking force and frequency are not uniform in the process of multiple knocking, so the internal filling effect of the quartz sand may not be ideal, the manual adding process consumes a lot of physical strength, and the overall efficiency is not ideal. Therefore, a sand filling model pipe automatic sand filling device for physical simulation experiment and a use method are needed to solve the above problems. SUMMARY

[0006] In order to overcome the above-mentioned defects of the prior art, the present application provides an automatic sand filling device for a sand filling model pipe used in physical simulation experiments, which solves the problem that the operation process is partially performed by manual layer-by-layer sand filling operation of the workers, the quartz sand is loaded into the sand filling model pipe layer by layer, and the sand filling quartz pipe is knocked with a hammer at the same time to achieve the vibration and compaction effect, but the knocking force and frequency are not uniform during multiple knocking processes, so that the internal filling effect of the quartz sand may not be ideal, manual adding process consumes more physical strength, and the overall efficiency is not ideal.

[0007] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: an automatic sand filling device for a sand filling model pipe used in physical simulation experiments, comprising a placing rack, the upper surface of the placing rack is provided with an excitation assembly, the upper surface of the excitation assembly is provided with a first bearing, the inner wall of the first bearing is provided with a placing cylinder, and the lower surface of the placing cylinder is lap jointed with the upper surface of the excitation assembly.

[0008] The left and right sides of the inner wall of the placing cylinder are both provided with a limiting plate, the left side of the inner wall of the placing rack is provided with a connecting hose, the right end of the connecting hose is communicated with the left end of a discharging head, the front and back surfaces of the discharging head are both provided with a pin shaft, and the outer surfaces of the two pin shafts are provided with a same fixing frame.

[0009] The left side of the inner wall of the placing rack is fixedly connected with the left side of a top plate, the lower surface of the top plate is provided with a half gear driving assembly, the left side of the half gear driving assembly is engaged with a gear tooth, the gear tooth is arranged on the right side of a sliding rod, the bottom end of the sliding rod is fixedly connected with the upper surface of a pressing plate, the upper surface of a top plate first bearing is fixedly connected with the lower surface of a motor first bearing, the front side output shaft of the motor first bearing is fixedly connected with the back surface of a rotating blade first bearing, the outer surface of the rotating blade first bearing is provided with a second bearing first bearing, the second bearing first bearing is clamped on the back surface of a filter plate first bearing, the front surface of the filter plate first bearing is fixedly connected with the back surface of a collecting box first bearing, the lower surface of the collecting box first bearing is fixedly connected with the upper surfaces of a backing plate first bearing and a top plate first bearing, the back surface of the backing plate first bearing is fixedly connected with the front surface of the top plate first bearing, the right side of the collecting box first bearing is communicated with the left end of a collecting pipe first bearing, the bottom end of the collecting pipe first bearing is communicated with the upper surface of a collecting cover first bearing, and the collecting pipe first bearing is clamped on the upper surface of the top plate first bearing.

[0010] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the lower surface of the inner wall of the placing cylinder is clamped with the first piston cylinder, the upper surface of the first piston cylinder is provided with the first moving rod, the top end of the first moving rod is fixedly connected with the lower surface of the contact plate, the left and right sides of the first piston cylinder are respectively communicated with one end of the two air tubes opposite to each other, the other end of the air tube is communicated with the front surface of the second piston cylinder, the second piston cylinder is arranged in the inner wall of the placing cylinder, the opposite surfaces of the two second piston cylinders are provided with the second moving rods, the opposite surfaces of the two second moving rods are respectively fixedly connected with the opposite surfaces of the two limiting plates, the outer surface of the placing cylinder is clamped with the connecting gear, the right surface of the connecting gear is engaged with the left surface of the connecting driving assembly, and the connecting driving assembly is arranged on the upper surface of the exciting assembly.

[0011] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the position of the pressing plate corresponds to the position of the placing cylinder, and the limiting plate is arranged in an arc shape.

[0012] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the front surface of the first piston cylinder is communicated with one end of the back surface of the exhaust valve, the exhaust valve is clamped on the front surface of the placing cylinder, and the exhaust valve is located below the connecting gear.

[0013] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the inner wall of the first piston cylinder is overlapped with the outer surface of the first piston plate, the upper surface of the first piston plate is fixedly connected with the bottom end of the first moving rod, and the first moving rod is arranged in a circular shape.

[0014] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the lower surface of the first piston plate is fixedly connected with the top end of the elastic assembly, and the bottom end of the elastic assembly is fixedly connected with the lower surface of the inner wall of the first piston cylinder.

[0015] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the inner wall of the second piston cylinder is overlapped with the outer surface of the second piston plate, and the left surface of the second piston plate is fixedly connected with the right end of the second moving rod.

[0016] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the upper surface of the fixing frame is fixedly connected with the lower surface of the horizontal plate, the left side surface of the horizontal plate is fixedly connected with the left side surface of the inner wall of the placing frame, the upper surface of the horizontal plate is provided with a pressing switch, the upper surface of the blanking head is fixedly connected with the lower surface of the first magnetic block, the upper surface of the blanking head is fixedly connected with the lower surface of the second magnetic block, the first magnetic block is located at the right side of the second magnetic block, and the position of the second magnetic block corresponds to the position of the pressing switch.

[0017] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the front surface and the back surface of the sliding rod are fixedly connected with the opposite surfaces of the two limiting blocks respectively, and the sliding rod has the same magnetism as the first magnetic block.

[0018] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the left end of the connecting hose is communicated with the bottom end of the blanking pipe, the other end of the blanking pipe is provided with a blanking assembly, the blanking assembly is arranged on the upper surface of the top plate, the rear output shaft of the motor first bearing is fixedly connected with one end of the front surface of the rotating rod first bearing, a plurality of stirring shaft first bearings are arranged on the outer surface of the rotating rod first bearing, the stirring shaft first bearings and the rotating rod first bearing are located in the blanking assembly, a third bearing first bearing is arranged on the outer surface of the rotating rod first bearing, and the third bearing first bearing is clamped on the front surface of the blanking assembly first bearing.

[0019] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the upper surface of the top plate is provided with a connecting hole, and the sliding rod and the limiting block are slidingly connected to the inner wall of the connecting hole.

[0020] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the upper surface of the pressing switch is overlapped with the lower surface of the connecting plate, the lower surface of the connecting plate is fixedly connected with the top ends of the two elastic rods, and the bottom ends of the elastic rods are fixedly connected with the upper surface of the horizontal plate.

[0021] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the right end of the blanking head is located directly below the pressing plate, and the connecting plate has magnetism.

[0022] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the position of the connecting plate corresponds to the position of the second magnetic block, the connecting plate is in the shape of a rectangle, and the magnetism of the connecting plate is the same as that of the second magnetic block.

[0023] As a preferred scheme of the automatic sand filling device for the sand filling model pipe used in physical simulation experiment in the application, the pressing plate is circular, and the size of the sliding rod is smaller than that of the pressing plate.

[0024] A method for using the automatic sand filling device for the sand filling model pipe used in physical simulation experiment, comprising the following steps:

[0025] S1, when the device needs to be used, first place the sand filling model pipe into the placing cylinder, and at the same time, the sand filling model pipe extrudes the contact plate to move, at this time, the contact plate drives the first piston plate to move through the first moving rod, the first piston plate moves downward at the same time, and the gas in the first piston cylinder is extruded into the two second piston cylinders, the gas pressure in the second piston cylinder increases at the same time, the second piston plate moves at the same time, and the two second piston plates and the limiting plate move close to each other, when the limiting plate is in close contact with the surface of the sand filling model pipe, the placement of the sand filling model pipe is completed at this time;

[0026] S2, then control the work of the discharging assembly, the connecting driving assembly, the excitation assembly, the motor and the half gear driving assembly, the motor drives the rotating rod and the rotating blade to rotate, the rotating blade rotates at the same time, and the air below the top plate is sucked through the collecting pipe and the collecting cover, the powder and dust floating in the air are sucked into the collecting box, the rotating rod rotates at the same time, and the stirring shaft mixes the quartz sand in the discharging assembly, at the same time, the discharging assembly loads the raw materials into the sand filling model pipe through the connecting hose and the discharging head, the connecting driving assembly drives the placing cylinder and the sand filling model pipe to rotate through the connecting gear, the excitation assembly vibrates the placing cylinder and the sand filling model pipe, the sand filling model pipe realizes loading while rotating and being vibrated, after the half gear driving assembly rotates to separate from the teeth, at this time, the gravity controls the sliding rod to move downward, at this time, the sliding rod drives the pressing plate to move downward, when the sliding rod is close to the discharging head, the magnetic force between the sliding rod and the first magnetic block drives the discharging head to rotate downward, at the same time, the second magnetic block moves upward, and the magnetic force between the second magnetic block and the connecting plate drives the connecting plate to move upward;

[0027] S3, when the connecting plate separates from the pressing switch, the connecting driving assembly stops working at this time, when the pressing plate completes extrusion downward, the half gear driving assembly engages with the teeth and controls the sliding rod to move upward, when the sliding rod is away from the discharging head, at this time, the connecting hose drives the discharging head to reset by using the elastic force of itself, at the same time, the second magnetic block is away from the connecting plate, at the same time, the elastic rod drives the connecting plate to extrude the pressing switch downward, and the connecting driving assembly is controlled to work at this time, at this time, the discharging assembly outputs the quantitative raw materials again, and then the above process is repeatedly performed to continuously fill the raw materials into the sand filling model pipe.

[0028] Compared with the prior art, the application has the following beneficial effects:

[0029] 1. The physical simulation experiment sand filling model pipe automatic sand filling device and use method, by setting the excitation assembly, the connecting drive assembly, the placing cylinder, the blanking head, the first magnetic block, the pin shaft, the pressing plate, the half gear drive assembly, the gear and the sliding rod, directly control the blanking assembly, the connecting drive assembly and the half gear drive assembly work, at the same time, the blanking assembly fills the sand filling model pipe with the appropriate amount of raw materials through the blanking head, at the same time, the connecting drive assembly drives the gear and the placing cylinder to rotate, at this time, the sand filling model pipe rotates while filling, and the quantitative adding process is carried out each time, when the sliding rod moves downward to approach the blanking head, at this time, the blanking head rotates downward to be located above the sand filling model pipe, when the gear teeth are separated from the half gear drive assembly, the pressing plate moves downward quickly to knock, at the same time, the excitation assembly vibrates the placing cylinder and the sand filling model pipe to ensure that the sand filling process is relatively dense, and the filling process of the sand filling model pipe is convenient and efficient, which guarantees the overall filling effect and efficiency to a certain extent.

[0030] 2. The physical simulation experiment sand filling model pipe automatic sand filling device and use method, by setting the first piston cylinder, the second piston cylinder, the first piston plate, the second piston plate, the elastic assembly, the contact plate and the limiting plate, when the sand filling model pipe is placed downward into the placing cylinder, the sand filling model pipe extrudes the contact plate to move downward, at this time, the first piston plate extrudes the air in the first piston cylinder into the second piston cylinder, at the same time, the second piston plate and the limiting plate move close to each other, at the same time, the limiting plate moves close to the sand filling model pipe to clamp and position the sand filling model pipe, the sand filling model pipe can rotate smoothly with the placing cylinder, when the sand filling model pipe needs to be taken down, the exhaust valve is directly opened, at this time, part of the gas in the first piston cylinder and the second piston cylinder flows out, at the same time, the pressure of the gas disappears on the second piston plate and the limiting plate, and the contact limiting plate clamps and positions the sand filling model pipe, the placing, positioning and taking down operation process of the sand filling model pipe is relatively quick and convenient.

[0031] 3. The physical simulation experiment sand filling model pipe automatic sand filling device and use method, by setting the second magnetic block, the elastic rod, the pressing switch and the connecting plate, and the connecting plate has the same magnetism as the second magnetic block, after completing single raw material addition, the blanking head is driven downward to rotate by the magnetic force between the first magnetic block and the sliding rod at the same time of compaction, at this time, the second magnetic block moves upward, the magnetic force between the second magnetic block and the connecting plate drives the pressing plate to move upward, when the connecting plate is separated from the pressing switch, at this time, the pressing switch is closed, and the connecting drive assembly stops working, after completing raw material compaction, the connecting hose drives the blanking head to reset by using the elastic force of the connecting hose after the sliding rod moves upward away from the first magnetic block, at this time, the second magnetic block moves away from the connecting plate, and the elastic rod drives the connecting plate to extrude the pressing switch, at this time, the connecting drive assembly works to drive the placing cylinder to rotate, the placing cylinder and the sand filling model pipe automatically stop rotating when the device is compaction operation, which guarantees the continuity of the overall filling and compaction process.

[0032] 4. The physical simulation experiment sand filling model pipe automatic sand filling device and use method, through the setting motor, rotating blade, collecting box, filter plate, stirring shaft, rotating rod and collecting cover, the rotating blade and stirring shaft can be controlled to rotate while the motor works, the different types of sand and gravel in the discharging assembly can be mixed while the stirring shaft rotates, the full and uniform mixing of various quartz sands is realized, and while the quartz sand is mixed, the fan blade rotates to collect and process the small quartz sand powder and dust scattered in the sand filling process, simultaneously accelerates the air flow rate, realizes the heat dissipation of the motor working process, makes the sand filling operation of the device more simple, guarantees the sand filling effect. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a three-dimensional structural schematic view of the application;

[0034] Figure 2 It is a three-dimensional structural schematic view of the sliding rod of the application;

[0035] Figure 3 It is a three-dimensional structural schematic view of the discharging head of the application;

[0036] Figure 4 It is a three-dimensional structural schematic view of the connecting plate of the application;

[0037] Figure 5 It is an enlarged structural schematic view of part A of the application;

[0038] Figure 6 It is a three-dimensional structural schematic view of the limiting plate of the application;

[0039] Figure 7 It is a three-dimensional sectional structural schematic view of the first piston cylinder of the application;

[0040] Figure 8 It is a three-dimensional sectional structural schematic view of the second piston cylinder of the application;

[0041] Figure 9 It is a three-dimensional structural schematic view of the motor of the application;

[0042] Figure 10 It is a three-dimensional structural schematic view of the collecting pipe of the application;

[0043] In the figure:

[0044] 1 - placing frame 2 - excitation assembly

[0045] 3 - first bearing 4 - placing cylinder

[0046] 5 - connecting gear 6 - connecting driving assembly

[0047] 7 - limiting plate 8 - first piston cylinder

[0048] 9 - first moving rod 10 - contact plate

[0049] 11 - first piston plate 12 - elastic assembly

[0050] 13 - exhaust valve 14 - air pipe

[0051] 15 - second piston cylinder 16 - second piston plate

[0052] 17 - second moving rod 18 - connecting hose

[0053] 19 - discharging head 20 - pin shaft

[0054] 21 - fixed frame 22 - cross plate

[0055] 23 - first magnetic block 24 - second magnetic block

[0056] 25 - press switch 26 - connecting plate

[0057] 27 - elastic rod 28 - discharging pipe

[0058] 29 - discharging assembly 30 - connecting hole

[0059] 31 - sliding rod 32 - limiting block

[0060] 33 - tooth 34 - top plate

[0061] 35 - half gear driving assembly 36 - pressing plate

[0062] 37 - backing plate 38 - collecting box

[0063] 39 - filtering plate 40 - motor

[0064] 41 - rotating blade 42 - second bearing

[0065] 43 - rotating rod 44 - third bearing

[0066] 45 - stirring shaft 46 - collecting pipe

[0067] 47 - collecting cover DETAILED DESCRIPTION

[0068] The technical scheme of the patent will be further explained in detail in combination with the specific embodiments.

[0069] As Figures 1-10As shown, the present invention provides a technical solution: an automatic sand-filling device for a sand-filled model tube in a physical simulation experiment, comprising a placement frame 1, an excitation component 2 disposed on the upper surface of the placement frame 1, and a first bearing 3 disposed on the upper surface of the excitation component 2. The first bearing 3 supports the placement tube 4, ensuring stable placement while allowing rotation. The placement tube 4 is disposed on the inner wall of the first bearing 3, and its lower surface overlaps with the upper surface of the excitation component 2. When the excitation component 2 operates, it generates vibration, which reduces the gaps between raw material particles. The lower surface of the inner wall of the placement tube 4 is engaged with the... There is a first piston cylinder 8, and a first moving rod 9 is provided on the upper surface of the first piston cylinder 8. By setting the first piston cylinder 8, the first piston plate 11, the second piston plate 16, the second piston cylinder 15 and the limiting plate 7, the sand filling model tube will use its own gravity to squeeze the contact plate 10 to move during the placement cylinder 4. The air pressure inside the second piston cylinder 15 is increased by using gravity to control the two limiting plates 7 to make close contact with the sand filling model tube from the side. The top of the first moving rod 9 is fixedly connected to the lower surface of the contact plate 10. The left and right sides of the first piston cylinder 8 are respectively connected to the opposite ends of the two air pipes 14, and the other end of the air pipes 14 is connected to the front of the second piston cylinder 15.

[0070] The second piston cylinder 15 is disposed on the inner wall of the placement cylinder 4. A second moving rod 17 is disposed on the opposite face of each of the two second piston cylinders 15. The opposite face of each of the two second moving rods 17 is fixedly connected to the opposite face of each of the two limiting plates 7. Limiting plates 7 are disposed on both the left and right sides of the inner wall of the placement cylinder 4. A connecting hose 18 is disposed on the left side of the inner wall of the placement frame 1. The connecting hose 18 connects the feeding pipe 28 to the feeding head 19, ensuring that the feeding head 19 remains connected to the feeding pipe 28 while rotating. The connection provides a certain elastic force when the discharge head 19 is reset. The right end of the connecting hose 18 is connected to the left end of the discharge head 19. Pins 20 are provided on both the front and back of the discharge head 19. By setting the pins 20, the discharge head 19 can be rotated smoothly. When the discharge head 19 is directly above the placement cylinder 4, the raw material is loaded into the sand filling model tube. When the discharge head 19 is rotated and is no longer directly above the sand filling model tube, it is convenient to realize the compaction process of the pressure plate 36. The outer surface of the two pins 20 is provided with the same fixing frame 21.

[0071] The upper surface of the fixed frame 21 is fixedly connected to the lower surface of the horizontal plate 22. The left side of the horizontal plate 22 is fixedly connected to the left side of the inner wall of the placement rack 1. A push switch 25 is provided on the upper surface of the horizontal plate 22. By providing the push switch 25, when the connecting plate 26 is separated from the push switch 25, the connecting drive assembly 6 can be controlled to stop working. The left side of the inner wall of the placement rack 1 is fixedly connected to the left side of the top plate 34. A half-gear drive assembly 35 is provided on the lower surface of the top plate 34. The left side has teeth 33 meshing with it. A half-gear drive assembly 35 is provided, which includes a drive motor and a half-gear. When the half-gear separates from the teeth 33, the pressure plate 36 and the sliding rod 31 move downwards under their own weight to compact the raw material. When the half-gear engages with the teeth 33, the sliding rod 31 and the pressure plate 36 can be smoothly controlled to return to their upward position. The teeth 33 are located on the right side of the sliding rod 31. The bottom end of the sliding rod 31 is fixedly connected to the upper surface of the pressure plate 36. The upper surface of plate 34 is fixedly connected to the lower surface of motor 40. The front output shaft of motor 40 is fixedly connected to the back of rotating blade 41. A second bearing 42 is provided on the outer surface of rotating blade 41. By providing the second bearing 42, the second bearing 42 supports rotating blade 41 while ensuring a stable connection with filter plate 39. The second bearing 42 is snapped onto the back of filter plate 39. The front of filter plate 39 is fixedly connected to the back of collection box 38. By providing filter plate 39, filter plate 39 can filter powder and dust in the air drawn in by rotating blade 41, achieving clean exhaust air. At the same time, exhaust air accelerates the dissipation of heat around motor 40. The lower surface of collection box 38 is fixedly connected to the upper surface of pad plate 37 and top plate 34. The back of pad plate 37 is fixedly connected to the front of top plate 34. The right side of collection box 38 is connected to the left end of collection pipe 46. The bottom end of collection pipe 46 is connected to the upper surface of collection cover 47. Collection cover 47 is snapped onto the upper surface of top plate 34.

[0072] Specifically, such as Figure 1 As shown, a connecting gear 5 is snapped onto the outer surface of the placement cylinder 4. By setting the connecting gear 5 and the connecting drive assembly 6, the connecting drive assembly 6 controls the rotation of the placement cylinder 4 and the sand filling model tube through the connecting gear 5, which facilitates the control of the sand filling model tube to rotate for material loading. The right side of the connecting gear 5 meshes with the left side of the connecting drive assembly 6. The connecting drive assembly 6 is set on the upper surface of the excitation assembly 2.

[0073] Specifically, such as Figure 1 and Figure 6 As shown, the position of the pressure plate 36 corresponds to the position of the placement cylinder 4, and the limiting plate 7 is set in an arc shape.

[0074] Specifically, such as Figure 1 and Figure 6As shown, the front of the first piston cylinder 8 is connected to one end of the back of the exhaust valve 13. The exhaust valve 13 is snapped onto the front of the placement cylinder 4 and is located below the connecting gear 5. By setting the exhaust valve 13, after the exhaust valve 13 is opened, some of the gas inside the first piston cylinder 8 and the second piston cylinder 15 is discharged, thereby reducing the gas pressure inside the second piston cylinder 15 and releasing the limiting plate 7 from limiting the sand filling model tube.

[0075] Specifically, such as Figure 7 As shown, the inner wall of the first piston cylinder 8 overlaps with the outer surface of the first piston plate 11, and the upper surface of the first piston plate 11 is fixedly connected to the bottom end of the first moving rod 9. The first moving rod 9 is circular.

[0076] Specifically, such as Figure 7 As shown, the lower surface of the first piston plate 11 is fixedly connected to the top end of the elastic component 12, and the bottom end of the elastic component 12 is fixedly connected to the lower surface of the inner wall of the first piston cylinder 8. By setting the elastic component 12, the elastic component 12 can control the contact plate 10 to move upward and reset after the sand filling model tube is separated from the contact plate 10.

[0077] Specifically, such as Figure 8 As shown, the inner wall of the second piston cylinder 15 overlaps with the outer surface of the second piston plate 16, and the left side of the second piston plate 16 is fixedly connected to the right end of the second moving rod 17.

[0078] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, the upper surface of the feeding head 19 is fixedly connected to the lower surface of the first magnetic block 23, and the upper surface of the feeding head 19 is fixedly connected to the lower surface of the second magnetic block 24. The first magnetic block 23 is located to the right of the second magnetic block 24, and the position of the second magnetic block 24 corresponds to the position of the push switch 25. By setting the first magnetic block 23, and the sliding rod 31 having the same magnetism as the first magnetic block 23, during the process of the pressure plate 36 moving downward to compact the raw material, the magnetic force between the sliding rod 31 and the first magnetic block 23 will cause the feeding head 19 to rotate downward.

[0079] Specifically, such as Figure 2 As shown, the front and back sides of the sliding rod 31 are fixedly connected to the opposite surfaces of the two limiting blocks 32, and the sliding rod 31 has the same magnetism as the first magnetic block 23.

[0080] Specifically, such as Figure 1 and Figure 9As shown, the left end of the connecting hose 18 is connected to the bottom end of the feeding pipe 28. The other end of the feeding pipe 28 is provided with a feeding assembly 29, which is located on the upper surface of the top plate 34. By setting the feeding assembly 29, the feeding assembly 29 can intermittently fill through the feeding head 19, and simultaneously feed a single quantity of material. The rear output shaft of the motor 40 is fixedly connected to one end of the front of the rotating rod 43. Several stirring shafts 45 are provided on the outer surface of the rotating rod 43. The stirring shafts 45 and the rotating rod 43 are located inside the feeding assembly. A third bearing 44 is provided on the outer surface of the rotating rod 43. The third bearing 44 supports the rotating rod 43 while ensuring that the rotating rod 43 can smoothly drive the stirring shaft 45 to rotate. The third bearing 44 is snapped onto the front of the feeding assembly 29. By setting up the motor 40, the rotating rod 43 and the rotating blade 41, the motor 40 can control the rotating blade 41 and the rotating rod 43 to work at the same time. While the rotating blade 41 is rotating, it can draw gas from below the top plate 34 through the collection pipe 46 to collect the scattered powder and dust. At the same time, the rotating rod 43 and the stirring shaft 45 rotate to stir and mix the quartz sand inside the feeding assembly 29.

[0081] Specifically, such as Figure 1 and Figure 5 As shown, a connecting hole 30 is provided on the upper surface of the top plate 34. The sliding rod 31 and the limiting block 32 are slidably connected to the inner wall of the connecting hole 30. By setting the connecting hole 30 and the limiting block 32, the up and down movement of the sliding rod 31 can be limited.

[0082] Specifically, such as Figure 4 As shown, the upper surface of the push switch 25 overlaps with the lower surface of the connecting plate 26. The lower surface of the connecting plate 26 is fixedly connected to the top ends of the two elastic rods 27, and the bottom end of the elastic rods 27 is fixedly connected to the upper surface of the horizontal plate 22. By setting the elastic rods 27, the movement of the connecting plate 26 can be supported. At the same time, when the second magnetic block 24 moves away from the connecting plate 26, the elastic rods 27 use their own elastic force to drive the connecting plate 26 to press the push switch 25 again.

[0083] Specifically, such as Figure 1 and Figure 4 As shown, the right end of the feeding head 19 is located directly below the pressure plate 36, and the connecting plate 26 is magnetic.

[0084] Specifically, such as Figure 3 and Figure 4As shown, the position of the connecting plate 26 corresponds to the position of the second magnetic block 24. The shape of the connecting plate 26 is set to rectangular. The magnetism of the connecting plate 26 is the same as that of the second magnetic block 24. By setting the magnetism of the second magnetic block 24 to be the same as that of the connecting plate 26, while the feeding head 19 rotates downward, the second magnetic block 24 moves upward and closer to the connecting plate 26, and at the same time, the connecting plate 26 is controlled to separate upward from the press switch 25, thereby stopping the control connection drive assembly 6 from working.

[0085] Specifically, such as Figure 2 As shown, the pressure plate 36 is circular, and the size of the sliding rod 31 is smaller than the size of the pressure plate 36.

[0086] A method for using an automatic sand-filling device for a sand-filled model tube used in physical simulation experiments includes the following steps:

[0087] S1. When this device is needed, firstly, the sand-filled model tube is placed downward into the placement cylinder 4. At the same time, the sand-filled model tube presses the contact plate 10 downward to move. At this time, the contact plate 10 drives the first piston plate 11 to move through the first moving rod 9. While the first piston plate 11 moves downward, it squeezes the gas in the first piston cylinder 8 into the two second piston cylinders 15. While the gas pressure in the second piston cylinder 15 increases, it controls the movement of the second piston plate 16. At the same time, the two second piston plates 16 and the limiting plate 7 move closer to each other. When the limiting plate 7 is in close contact with the surface of the sand-filled model tube, the placement of the sand-filled model tube is completed.

[0088] S2. Subsequently, the feeding assembly 29, drive assembly 6, excitation assembly 2, motor 40, and half-gear drive assembly 35 are controlled to operate. Motor 40 drives the rotating rod 43 and rotating blade 41 to rotate. While rotating blade 41 rotates, it draws air from below the top plate 34 through collection pipe 46 and collection cover 47. Powder and dust floating in the air are drawn into collection box 38. While rotating rod 43 rotates, it drives stirring shaft 45 to mix the quartz sand in feeding assembly 29. At the same time, feeding assembly 29 loads raw materials into sand filling mold tube through connecting hose 18 and feeding head 19. Meanwhile, drive assembly 6 is connected to the drive assembly 35 through... The connecting gear 5 drives the placement cylinder 4 and the sand filling model tube to rotate. The excitation component 2 vibrates the placement cylinder 4 and the sand filling model tube. The sand filling model tube is loaded with material while rotating and being vibrated. After the half gear drive component 35 rotates and separates from the tooth 33, the gravity control sliding rod 31 moves downward. At this time, the sliding rod 31 drives the pressure plate 36 to move downward. When the sliding rod 31 approaches the material feeding head 19, the magnetic force between the sliding rod 31 and the first magnetic block 23 drives the material feeding head 19 to rotate downward. At the same time, the second magnetic block 24 moves upward. The magnetic force between the second magnetic block 24 and the connecting plate 26 drives the connecting plate 26 to move upward.

[0089] S3. When the connecting plate 26 is separated from the press switch 25, the connecting drive assembly 6 stops working. When the pressure plate 36 completes the downward pressing, the half gear drive assembly 35 meshes with the teeth 33 and controls the sliding rod 31 to move upward. When the sliding rod 31 moves away from the discharge head 19, the connecting hose 18 uses its own elasticity to drive the discharge head 19 to reset. At the same time, the second magnetic block 24 moves away from the connecting plate 26, and the elastic rod 27 drives the connecting plate 26 to press the press switch 25 downward, while controlling the connecting drive assembly 6 to work. At this time, the discharge assembly 29 outputs a quantitative amount of raw material again. The above process is repeated continuously to continuously fill the sand filling model tube with raw material.

[0090] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0091] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. An automatic sand-filling device for a sand-filled model tube used in physical simulation experiments, comprising a placement rack (1), characterized in that: The upper surface of the placement rack (1) is provided with an excitation component (2), the upper surface of the excitation component (2) is provided with a first bearing (3), the inner wall of the first bearing (3) is provided with a placement cylinder (4), and the lower surface of the placement cylinder (4) overlaps with the upper surface of the excitation component (2). Limiting plates (7) are provided on both the left and right sides of the inner wall of the placement cylinder (4). A connecting hose (18) is provided on the left side of the inner wall of the placement frame (1). The right end of the connecting hose (18) is connected to the left end of the feeding head (19). Pins (20) are provided on both the front and back of the feeding head (19). The outer surfaces of the two pins (20) are provided with the same fixing frame (21). The upper surface of the fixed frame (21) is fixedly connected to the lower surface of the horizontal plate (22), the left side of the horizontal plate (22) is fixedly connected to the left side of the inner wall of the placement rack (1), the upper surface of the horizontal plate (22) is provided with a push switch (25), the upper surface of the feeding head (19) is fixedly connected to the lower surface of the first magnetic block (23), the upper surface of the feeding head (19) is fixedly connected to the lower surface of the second magnetic block (24), the first magnetic block (23) is located to the right of the second magnetic block (24), and the position of the second magnetic block (24) corresponds to the position of the push switch (25). The left end of the connecting hose (18) is connected to the bottom end of the feeding pipe (28). The other end of the feeding pipe (28) is provided with a feeding assembly (29). The feeding assembly (29) is located on the upper surface of the top plate (34). The rear output shaft of the motor (40) is fixedly connected to one end of the front of the rotating rod (43). The outer surface of the rotating rod (43) is provided with several stirring shafts (45). The stirring shafts (45) and the rotating rod (43) are located inside the feeding assembly. The outer surface of the rotating rod (43) is provided with a third bearing (44). The third bearing (44) is snapped into the front of the feeding assembly (29). The left side of the inner wall of the placement rack (1) is fixedly connected to the left side of the top plate (34). A half-gear drive assembly (35) is provided on the lower surface of the top plate (34). A tooth (33) meshes on the left side of the half-gear drive assembly (35). The tooth (33) is provided on the right side of the sliding rod (31). The bottom end of the sliding rod (31) is fixedly connected to the upper surface of the pressure plate (36). The upper surface of the top plate (34) is fixedly connected to the lower surface of the motor (40). The front output shaft of the motor (40) is fixedly connected to the back of the rotating blade (41). The outer surface of the rotating blade (41) A second bearing (42) is provided on the surface of the filter plate (39), the second bearing (42) is snapped onto the back of the filter plate (39), the front of the filter plate (39) is fixedly connected to the back of the collection box (38), the lower surface of the collection box (38) is fixedly connected to the upper surface of the pad (37) and the top plate (34), the back of the pad (37) is fixedly connected to the front of the top plate (34), the right side of the collection box (38) is connected to the left end of the collection pipe (46), the bottom end of the collection pipe (46) is connected to the upper surface of the collection cover (47), and the collection cover (47) is snapped onto the upper surface of the top plate (34). The position of the pressure plate (36) corresponds to the position of the placement cylinder (4), the limiting plate (7) is set to be arc-shaped, the pressure plate (36) is set to be circular, and the size of the sliding rod (31) is smaller than the size of the pressure plate (36).

2. The automatic sand-filling device for a sand-filled model tube used in physical simulation experiments according to claim 1, characterized in that: The lower surface of the inner wall of the placement cylinder (4) is fitted with a first piston cylinder (8). The upper surface of the first piston cylinder (8) is provided with a first moving rod (9). The top end of the first moving rod (9) is fixedly connected to the lower surface of the contact plate (10). The left and right sides of the first piston cylinder (8) are respectively connected to the opposite ends of the two air pipes (14). The other end of the air pipes (14) is connected to the front of the second piston cylinder (15). The second piston cylinder (15) is provided on the inner wall of the placement cylinder (4). The opposite surfaces of the two second piston cylinders (15) are each provided with a second moving rod (17). The opposite surfaces of the two second moving rods (17) are respectively fixedly connected to the opposite back surfaces of the two limiting plates (7). The outer surface of the placement cylinder (4) is fitted with a connecting gear (5). The right side of the connecting gear (5) meshes with the left side of the connecting drive assembly (6). The connecting drive assembly (6) is provided on the upper surface of the excitation assembly (2).

3. The automatic sand-filling device for a sand-filled model tube for physical simulation experiments according to claim 2, characterized in that: The front of the first piston cylinder (8) is connected to one end of the back of the exhaust valve (13), which is snapped onto the front of the placement cylinder (4) and is located below the connecting gear (5).

4. The automatic sand-filling device for a sand-filled model tube for physical simulation experiments according to claim 2, characterized in that: The inner wall of the first piston cylinder (8) overlaps with the outer surface of the first piston plate (11), and the upper surface of the first piston plate (11) is fixedly connected to the bottom end of the first moving rod (9). The first moving rod (9) is circular.

5. The automatic sand-filling device for a sand-filled model tube for physical simulation experiments according to claim 4, characterized in that: The lower surface of the first piston plate (11) is fixedly connected to the top end of the elastic component (12), and the bottom end of the elastic component (12) is fixedly connected to the lower surface of the inner wall of the first piston cylinder (8).

6. The automatic sand-filling device for a sand-filled model tube for physical simulation experiments according to claim 4, characterized in that: The inner wall of the second piston cylinder (15) overlaps with the outer surface of the second piston plate (16), and the left side of the second piston plate (16) is fixedly connected to the right end of the second moving rod (17).

7. The automatic sand-filling device for a sand-filled model tube for physical simulation experiments according to claim 1, characterized in that: The front and back sides of the sliding rod (31) are fixedly connected to the opposite sides of the two limiting blocks (32), and the sliding rod (31) has the same magnetism as the first magnetic block (23).

8. The automatic sand-filling device for a sand-filled model tube for physical simulation experiments according to claim 7, characterized in that: The top plate (34) has a connecting hole (30) on its upper surface, and the sliding rod (31) and the limiting block (32) are slidably connected to the inner wall of the connecting hole (30).

9. An automatic sand-filling device for a sand-filled model tube used in physical simulation experiments according to claim 6, characterized in that: The upper surface of the push switch (25) overlaps with the lower surface of the connecting plate (26), the lower surface of the connecting plate (26) is fixedly connected to the top ends of the two elastic rods (27), and the bottom end of the elastic rods (27) is fixedly connected to the upper surface of the horizontal plate (22).

10. An automatic sand-filling device for a sand-filled model tube for physical simulation experiments according to claim 9, characterized in that: The right end of the feed head (19) is located directly below the pressure plate (36), and the connecting plate (26) is magnetic.

11. An automatic sand-filling device for a sand-filled model tube used in physical simulation experiments according to claim 10, characterized in that: The position of the connecting plate (26) corresponds to the position of the second magnetic block (24). The shape of the connecting plate (26) is set to rectangular. The magnetism of the connecting plate (26) is the same as that of the second magnetic block (24).

12. The method of using an automatic sand-filling device for a sand-filled model tube in a physical simulation experiment according to any one of claims 9-11, characterized in that, The method of use includes the following steps: S1. When this device is needed, first place the sand-filled model tube downward into the placement cylinder (4). At the same time, the sand-filled model tube presses the contact plate (10) downward to move. At this time, the contact plate (10) drives the first piston plate (11) to move through the first moving rod (9). While the first piston plate (11) moves downward, it squeezes the gas in the first piston cylinder (8) into the two second piston cylinders (15). While the gas pressure in the second piston cylinder (15) increases, it controls the movement of the second piston plate (16). At the same time, the two second piston plates (16) and the limiting plate (7) move closer to each other. When the limiting plate (7) is in close contact with the surface of the sand-filled model tube, the placement of the sand-filled model tube is completed. S2. Subsequently, the feeding assembly (29), drive assembly (6), excitation assembly (2), motor (40), and half-gear drive assembly (35) are controlled to work. The motor (40) drives the rotating rod (43) and rotating blade (41) to rotate. While the rotating blade (41) rotates, it draws air from below the top plate (34) through the collection pipe (46) and collection cover (47). The powder and dust floating in the air are drawn into the collection box (38). While the rotating rod (43) rotates, it drives the stirring shaft (45) to mix the quartz sand in the feeding assembly (29). At the same time, the feeding assembly (29) loads the raw materials into the sand filling model tube through the connecting hose (18) and feeding head (19). At the same time, the drive assembly (6) is connected. The connecting gear (5) drives the placement cylinder (4) and the sand filling model tube to rotate. The excitation component (2) vibrates the placement cylinder (4) and the sand filling model tube. The sand filling model tube is loaded with material while rotating and being vibrated. After the half gear drive component (35) rotates to separate from the tooth (33), the gravity control sliding rod (31) moves downward. At this time, the sliding rod (31) drives the pressure plate (36) to move downward. When the sliding rod (31) approaches the discharge head (19), the magnetic force between the sliding rod (31) and the first magnetic block (23) drives the discharge head (19) to rotate downward. At the same time, the second magnetic block (24) moves upward. The magnetic force between the second magnetic block (24) and the connecting plate (26) drives the connecting plate (26) to move upward. S3. When the connecting plate (26) is separated from the push switch (25), the connecting drive assembly (6) stops working. When the pressure plate (36) is pressed down, the half gear drive assembly (35) meshes with the teeth (33) and controls the sliding rod (31) to move upward. When the sliding rod (31) moves away from the discharge head (19), the connecting hose (18) uses its own elasticity to drive the discharge head (19) to reset. At the same time, the second magnetic block (24) moves away from the connecting plate (26), and the elastic rod (27) drives the connecting plate (26) to press down the push switch (25), while controlling the connecting drive assembly (6) to work. At this time, the discharge assembly (29) outputs a quantitative amount of raw material again. Then, the above process is repeated continuously to continuously fill the sand filling model tube with raw material.

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