A rapid prototyping device for pavement stabilized soil test specimens

Abstract

The application discloses a kind of road surface stabilized soil test piece rapid forming device, it is related to highway engineering test detection equipment technical field, including: base, storage component, extrusion forming component, closed feeding guide component and vibration distribution component;Base is placed horizontally, storage component is fixedly arranged in the upper of base, extrusion forming component is arranged below storage component, for applying forming pressure to storage component, closed feeding guide component is arranged above storage component, closed feeding guide component includes upper closure plate, material guide pipe and linkage closure component, upper closure plate is slid to the top of storage component and is blocked, material guide pipe is vertically arranged above storage component, linkage closure component is used to drive material guide pipe to lift and carry out anti-leakage limit to the lower end of material guide pipe, vibration distribution component is arranged above material guide pipe, for distributing and pressing material.The application has the effect of improving the preparation efficiency and preparation quality of stabilized soil test piece.

Description

Technical Field

[0001] This application relates to the field of highway engineering testing and inspection equipment technology, and in particular to a rapid prototyping device for pavement stabilized soil specimens. Background Technology

[0002] Pavement soil testing is the process of detecting the physical, mechanical, and chemical properties of stabilized soil materials (such as cement-stabilized soil and lime-stabilized soil) used in highway engineering. In the process of stabilized soil testing in highway engineering, standard specimens need to be prepared for performance testing. The traditional method of stabilized soil specimen molding mainly involves: manually adjusting the filling of stabilized soil material, closing the top cover, and pressurizing. Not only is the molding process cumbersome and complex with a long preparation cycle, but the filling process of stabilized soil material is also prone to material leakage and uneven filling. Since the standard specimen of stabilized soil is filled with a standard amount of stabilized soil sample in a standard molding machine and then pressure molded, when stabilized soil material leakage or uneven filling occurs, it will affect the molding quality of the subsequent standard specimens, thus making the efficiency and accuracy of subsequent mechanical property testing of the standard specimens poor. Summary of the Invention

[0003] To reduce the problems of long preparation cycles and easy leakage of stabilized soil materials in road surface soil specimens, this application provides a rapid prototyping device for road surface stabilized soil specimens.

[0004] This application provides a rapid prototyping device for road stabilized soil specimens, which adopts the following technical solution: A rapid prototyping device for road stabilized soil specimens includes: a base, a storage assembly, an extrusion molding assembly, a closed feeding guide assembly, and a vibratory distributing assembly. The base is placed horizontally, the storage assembly is fixedly installed above the base, the extrusion molding assembly is installed below the storage assembly and is used to apply molding pressure to the storage assembly, the closed feeding guide assembly is installed above the storage assembly, and the closed feeding guide assembly includes an upper sealing plate, a guide pipe, and a linkage sealing component. The upper sealing plate is slidably installed above the storage assembly and is used to seal the top of the storage assembly. The guide pipe is lifted and lowered above the storage assembly, and the linkage sealing component is fixedly installed on the outside of the guide pipe and is used to drive the guide pipe to rise and fall and to limit the leakage at the lower end of the guide pipe. The vibratory distributing assembly is installed above the guide pipe and is used for distributing and pressing the material.

[0005] By adopting the above technical solution, during use, the extrusion molding component seals and limits the bottom of the storage component. The linkage sealing component drives the guide pipe to descend, reducing the gap between the lower end of the guide pipe and the upper end of the storage component, thus reducing the leakage of stabilized soil material along this gap. At the same time, the linkage sealing component can seal the gap between the outer side of the lower end of the guide pipe and the inner wall of the storage component during the descent of the guide pipe, further reducing the possibility of stabilized soil material leakage. After the stabilized soil material is added, the operation of the vibration distribution component distributes and vibrates the stabilized soil material in the storage component. Subsequently, the extrusion molding component can apply pressure to the storage component, causing the stabilized soil material to be extruded and molded.

[0006] Optionally, the material storage assembly includes a material storage forming cylinder, a fixing frame, multiple assembly rods, and a fixing top plate. The material storage forming cylinder is located directly above the base and has an open structure at both ends. The fixing frame is fixedly sleeved on the outside of the material storage forming cylinder.

[0007] By adopting the above technical solution, the stabilized soil material is contained and limited by the storage and forming cylinder during use, which provides a foundation for subsequent extrusion molding. During installation, the assembly stability of the storage and forming cylinder is ensured by the cooperation of the fixing frame, multiple assembly rods and the fixed top plate.

[0008] Optionally, multiple assembly rods are symmetrically arranged above the base and fixedly connected to the fixing frame and the material storage forming cylinder. The fixed top plate is fixedly arranged above the multiple assembly rods, and a clearance hole matching the guide pipe is opened at the center of the fixed top plate.

[0009] By adopting the above technical solution, the top plate is used to fix multiple assembly rods, ensuring the stability of the multiple assembly rods in use. At the same time, by opening the clearance hole, it is convenient to add stabilizing soil material into the material storage molding cylinder.

[0010] Optionally, the extrusion molding assembly includes a hydraulic cylinder, an extrusion piston rod, and an extrusion base plate. The hydraulic cylinder is fixedly disposed within the base, the extrusion piston rod is slidably disposed within the hydraulic cylinder, and the extrusion base plate is fixedly connected to the end of the hydraulic cylinder located outside the extrusion piston rod and is located below the material storage assembly.

[0011] By adopting the above technical solution, during use, the input and output of hydraulic oil in the hydraulic cylinder are controlled to drive the extrusion piston rod to rise and fall, thereby driving the extrusion base plate to extrude and mold the stabilized soil material in the storage assembly.

[0012] Optionally, a sliding guide frame is fixedly connected to the lower bottom surface of the fixed top plate, and the upper sealing plate is slidably disposed within the sliding guide frame. The outer dimensions of the upper sealing plate are larger than the inner diameter of the material storage forming cylinder.

[0013] By adopting the above technical solution, the sliding guide frame plays the role of assembly limit and sliding guide for the upper sealing plate. By making the outer dimensions of the upper sealing plate larger than the inner diameter of the material storage forming cylinder, the stability of the upper sealing plate in sealing the upper end of the material storage forming cylinder is ensured.

[0014] Optionally, the linkage enclosure component includes a pair of lead screw assembly frames, a pair of lifting lead screws, a pair of lead screw sliders, and a pair of lead screw motors. The pair of lead screw assembly frames are symmetrically arranged on both sides of the guide tube and fixedly arranged above the fixed top plate. The pair of lifting lead screws are respectively rotatably arranged in the pair of lead screw assembly frames. The pair of lead screw sliders are both fixedly connected to the outer side of the guide tube and respectively threadedly connected to the pair of lifting lead screws. The pair of lead screw motors are respectively fixedly arranged above the pair of lead screw assembly frames, and the output shaft of the lead screw motor is fixedly connected to the lifting lead screw.

[0015] By adopting the above technical solution, during use, the operation of the drive screw motor causes the lifting screw to rotate. At the same time, the screw slider will drive the guide pipe to rise and fall synchronously with the rotation of the lifting screw under the action of the thread. By adjusting and controlling the rise and fall of the guide pipe, the effect of the guide pipe in guiding the stable soil material is ensured. At the same time, interference between the upper sealing plate and the guide pipe is avoided.

[0016] Optionally, the linkage sealing component further includes a sealing airbag ring, a pair of guide air tubes, and a pair of storage air bags. The sealing airbag ring is fixedly sleeved on the outside of the guide tube and located at the lower end of the guide tube. One end of each pair of guide air tubes is connected to the sealing airbag ring. The pair of storage air bags are respectively connected to the other end of the pair of guide air tubes, and the pair of storage air bags are respectively located below the pair of lead screw sliders.

[0017] By adopting the above technical solution, during use, the air storage bladder will contract under the downward pressure of the lead screw and slider, thereby allowing the internal gas to be transported along the guide air pipe to the sealed air bladder ring, causing the sealed air bladder ring to expand. The expansion of the sealed air bladder ring seals the gap between the outer side of the lower end of the guide pipe and the inner wall of the material storage forming cylinder, further preventing leakage of the guide pipe during the material feeding process.

[0018] Optionally, the vibratory material distribution assembly includes a guide frame, an operating rod, and a positioning pin. The guide frame is fixedly disposed between a pair of lead screw assembly frames, the operating rod is slidably disposed within the guide frame, and the positioning pin is inserted between the guide frame and the operating rod for positioning the operating rod.

[0019] By adopting the above technical solution, during installation, the operating rod is guided to move up and down by a guide frame, and the guide frame and operating rod are locked and positioned by inserting positioning pins.

[0020] Optionally, the vibratory material distribution assembly further includes a compaction plate, a control motor, and a distribution plate. The compaction plate is fixedly installed at the lower end of the operating lever, the control motor is fixedly installed inside the compaction plate, and the distribution plate is installed below the compaction plate and is fixedly connected to the drive shaft of the control motor.

[0021] By adopting the above technical solution, when in use, the stabilized soil material filled in the storage molding cylinder is compacted by pressing down the compaction plate. The rotation of the drive control motor causes the distribution plate to rotate, thereby dispersing the stabilized soil material accumulated in the center of the storage molding cylinder and avoiding the situation where the stabilized soil material accumulates in the center.

[0022] Optionally, the vibratory material distribution assembly further includes multiple vibratory rods, multiple sets of eccentric drive shafts, and multiple drive pulleys. The multiple vibratory rods are all fixedly arranged below the compaction plate, the multiple sets of eccentric drive shafts are respectively arranged inside the multiple vibratory rods, and the multiple drive pulleys are respectively fixedly connected to one end of the multiple sets of eccentric drive shafts located inside the compaction plate. The multiple drive pulleys are belt driven to the transmission shaft of the control motor.

[0023] By adopting the above technical solution, during use, the drive pulley rotates synchronously with the rotation of the control motor drive shaft through belt drive, thereby driving the eccentric drive shaft to rotate inside the vibrating rod. The rotation of the eccentric drive shaft causes the vibrating rod to vibrate, which in turn enables the vibrating rod to vibrate and compact the stabilized soil material. This further ensures the uniformity of the addition of stabilized soil material in the storage molding cylinder and improves the molding quality of subsequent stabilized soil standard specimens.

[0024] In summary, the embodiments of the present invention provide a rapid prototyping device for road stabilized soil specimens, which includes at least one of the following beneficial technical effects: 1. By setting up a closed feeding guide component, leakage of stabilized soil material during the feeding process was avoided, ensuring the molding consistency of multiple standard specimens and greatly reducing the adverse effects of leaked stabilized soil material on subsequent extrusion molding; 2. By setting up a vibratory material distribution component, the added stabilized soil material can be dispersed and compacted, ensuring the uniformity of the added stabilized soil material and improving the molding quality of the standard specimens. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a rapid prototyping device for road stabilized soil specimens provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of another perspective of a rapid prototyping device for road stabilized soil specimens provided in an embodiment of the present invention; Figure 3 for Figure 2Enlarged view of a portion of the structure at point A; Figure 4 A side sectional view of a rapid prototyping device for road stabilized soil specimens provided in an embodiment of the present invention; Figure 5 This is a front sectional view of a rapid prototyping device for road stabilized soil specimens provided in an embodiment of the present invention; Figure 6 for Figure 5 Enlarged view of the structure at point B in the middle; Figure 7 for Figure 5 Enlarged view of the structure at point C.

[0026] Explanation of the markings in the image: 1. Base; 2. Material storage assembly; 201. Material storage forming cylinder; 202. Fixing frame; 203. Assembly rod; 204. Fixing top plate; 3. Extrusion molding components; 301. Hydraulic cylinder; 302. Extrusion piston rod; 303. Extrusion base plate; 4. Enclosed feeding guide assembly; 401. Upper enclosed plate; 402. Feed guide pipe; 403. Sliding guide frame; 404. Screw assembly frame; 405. Lifting screw; 406. Screw slider; 407. Screw motor; 408. Enclosed airbag ring; 409. Air guide pipe; 410. Air storage bag; 5. Vibrating material distribution assembly; 501. Guide frame; 502. Operating lever; 503. Positioning pin; 504. Compactor plate; 505. Control motor; 506. Material distribution plate; 507. Vibrating rod; 508. Eccentric drive shaft; 509. Drive pulley. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0028] Combination Figure 1 and Figure 2This application discloses a rapid prototyping device for road stabilized soil specimens, comprising: a base 1, a storage component 2, an extrusion molding component 3, a closed feeding guide component 4, and a vibration distributing component 5. The base 1 is placed horizontally, the storage component 2 is fixedly installed above the base 1, the extrusion molding component 3 is installed below the storage component 2 and is used to apply molding pressure to the storage component 2, the closed feeding guide component 4 is installed above the storage component 2, and the vibration distributing component 5 is installed above the closed feeding guide component 4 and is used for distributing and compacting the material. In practical application, the base 1 is used to assemble and fix the storage component 2 and the extrusion molding component 3. The extrusion molding component 3 seals the bottom of the storage component 2. Stabilized soil material is added into the storage component 2 through the closed feeding guide component 4. Simultaneously, the vibration distributing component 5 is used to distribute and vibrate the stabilized soil material in the storage component 2 to ensure the uniformity of the stabilized soil material in the storage component 2. Finally, the extrusion molding component 3 applies force to the storage component 2 to extrude and mold the stabilized soil material.

[0029] Combination Figure 1 and Figure 4 The material storage assembly 2 includes a material storage forming cylinder 201, a fixing frame 202, multiple assembly rods 203, and a fixing top plate 204. The material storage forming cylinder 201 is located directly above the base 1 and has an open structure at both ends. By making the material storage forming cylinder 201 open, it is convenient to add stabilized soil material into the material storage forming cylinder 201 from top to bottom. At the same time, it is convenient to compress and form the stabilized soil material in the material storage forming cylinder 201 from bottom to top.

[0030] Combination Figure 1 and Figure 2 The fixing frame 202 is fixedly sleeved on the outside of the material storage and forming cylinder 201. By assembling and fixing the material storage and forming cylinder 201 with the fixing frame 202, the strength of the material storage and forming cylinder 201 is improved, and damage or breakage of the material storage and forming cylinder 201 under external force during use is avoided, thus ensuring the forming stability of the material storage and forming cylinder 201.

[0031] Combination Figure 1 and Figure 2 Multiple assembly rods 203 are symmetrically arranged above the base 1 and are fixedly connected to the fixing frame 202 and the material storage and forming cylinder 201. A fixed top plate 204 is fixedly arranged above the multiple assembly rods 203. The fixed top plate 204 provides auxiliary fixation for the multiple assembly rods 203, ensuring the stability of the assembly and fixation of the multiple assembly rods 203 to the fixing frame 202.

[0032] Specifically, there are 4 sets of assembly rods 203, which provide good support and fixation.

[0033] The fixed top plate 204 has a clearance hole at its center that matches the material guide pipe 402. The clearance hole facilitates the addition of stabilized soil material into the material storage and forming cylinder 201.

[0034] Combination Figure 4 and Figure 5 The extrusion molding assembly 3 includes a hydraulic cylinder 301, an extrusion piston rod 302, and an extrusion base plate 303. The hydraulic cylinder 301 is fixedly installed inside the base 1. The extension and retraction of the extrusion piston rod 302 is controlled by controlling the delivery of hydraulic oil in the hydraulic cylinder 301.

[0035] In practical applications, the hydraulic cylinder 301 is connected to a hydraulic oil delivery pipeline. The extension and retraction of the extrusion piston rod 302 is adjusted and controlled by delivering hydraulic oil into the hydraulic cylinder 301 through the hydraulic oil delivery pipeline.

[0036] Combination Figure 4 and Figure 5 The extrusion piston rod 302 is slidably disposed within the hydraulic cylinder 301. By continuously extending the extrusion piston rod 302, the stabilized soil material added to the material storage and forming cylinder 201 is continuously extruded, thereby enabling the stabilized soil material to be formed under pressure.

[0037] Combination Figure 4 and Figure 5 The extrusion base plate 303 is fixedly connected to one end of the hydraulic cylinder 301 outside the extrusion piston rod 302, and is located below the material storage assembly 2. The extrusion base plate 303 seals the bottom of the material storage forming cylinder 201, preventing the added stabilized soil material in the material storage forming cylinder 201 from leaking along the lower opening.

[0038] Specifically, the diameter of the extrusion base plate 303 is matched with the inner diameter of the material storage forming cylinder 201. Furthermore, depending on the actual situation, the contact sealing between the extrusion base plate 303 and the material storage forming cylinder 201 can be ensured by fitting a sealing ring on the outside of the extrusion base plate 303.

[0039] Combination Figure 4 , Figure 5 and Figure 6 The closed-loop feeding guide assembly 4 is disposed above the storage assembly 2. The closed-loop feeding guide assembly 4 includes an upper sealing plate 401, a guide pipe 402, and a linkage sealing component. The upper sealing plate 401 is slidably disposed above the storage assembly 2 to seal the top of the storage assembly 2, and the guide pipe 402 is vertically disposed above the storage assembly 2.

[0040] It is worth noting that the upper diameter of the feed pipe 402 is larger than the lower diameter, which facilitates the smooth feeding of the feed pipe 402 and greatly reduces the possibility of leakage of stabilized soil material during the feeding process due to the smaller diameter of the upper end of the feed pipe 402.

[0041] Combination Figure 4 A sliding guide frame 403 is fixedly connected to the lower surface of the fixed top plate 204. The upper closing plate 401 is slidably disposed within the sliding guide frame 403, and the outer dimensions of the upper closing plate 401 are larger than the inner diameter of the material storage forming cylinder 201. The sliding guide frame 403 serves to limit the assembly and guide the sliding of the upper closing plate 401. By ensuring that the outer dimensions of the upper closing plate 401 are larger than the inner diameter of the material storage forming cylinder 201, the stability of the upper closing plate 401 in sealing the upper end of the material storage forming cylinder 201 is guaranteed.

[0042] Combination Figure 5 and Figure 6 The linkage sealing component is fixedly installed on the outside of the guide pipe 402, used to drive the guide pipe 402 to rise and fall and to limit the leakage at the lower end of the guide pipe 402. The linkage sealing component includes a pair of screw assembly frames 404, a pair of lifting screws 405, a pair of screw sliders 406, and a pair of screw motors 407. In use, the operation of the screw motors 407 causes the lifting screws 405 to rotate, and at the same time, the screw sliders 406, under the action of the threads, drive the guide pipe 402 to rise and fall synchronously with the rotation of the lifting screws 405. By adjusting and controlling the rise and fall of the guide pipe 402, the effect of guiding the stabilized soil material is ensured, while avoiding motion interference between the upper sealing plate 401 and the guide pipe 402.

[0043] Combination Figure 5 and Figure 6 A pair of lead screw assembly frames 404 are symmetrically arranged on both sides of the guide tube 402 and fixedly mounted above the fixed top plate 204. The lead screw assembly frames 404 serve as assembly limiters for the lifting lead screw 405 and the lead screw motor 407.

[0044] Combination Figure 5 and Figure 6 A pair of lifting screws 405 are rotatably mounted within a pair of screw assembly frames 404. A pair of screw sliders 406 are fixedly connected to the outer side of the guide tube 402 and are threadedly connected to the pair of lifting screws 405. Through the threaded engagement between the lifting screws 405 and the screw sliders 406, the screw sliders 406 can drive the guide tube 402 to move up and down as the lifting screws 405 rotate.

[0045] Combination Figure 5 and Figure 6 A pair of lead screw motors 407 are fixedly mounted above a pair of lead screw assembly frames 404, and the output shafts of the lead screw motors 407 are fixedly connected to the lifting lead screw 405. The lead screw motors 407 provide power, and the operation of the lead screw motors 407 drives the lifting lead screw 405 to rotate.

[0046] Combination Figure 5 and Figure 6 The linkage sealing component also includes a sealing airbag ring 408, a pair of guide air pipes 409, and a pair of storage airbags 410. In use, the storage airbags 410 are compressed by the downward pressure of the lead screw slider 406, which allows the internal gas to be transported along the guide air pipes 409 to the sealing airbag ring 408, causing the sealing airbag ring 408 to expand. The expansion of the sealing airbag ring 408 seals the gap between the lower outer side of the guide tube 402 and the inner wall of the material forming cylinder 201, further preventing leakage of the guide tube 402 during the material feeding process.

[0047] Combination Figure 5 and Figure 6 The sealing airbag ring 408 is fixedly sleeved on the outside of the feed tube 402 and located at the lower end of the feed tube 402. The expansion of the sealing airbag ring 408 seals and limits the lower end of the feed tube 402.

[0048] Combination Figure 5 and Figure 6 One end of each pair of air guide tubes 409 is connected to the sealing airbag ring 408, and one pair of air reservoirs 410 are connected to the other end of each pair of air guide tubes 409. The air guide tubes 409 connect the air reservoirs 410 and the sealing airbag ring 408, allowing the internal gas of the air reservoirs 410 to be transported along the air guide tubes 409 to the sealing airbag ring 408 when compressed, thus causing the sealing airbag ring 408 to inflate. In this way, the expansion and sealing state of the sealing airbag ring 408 is linked to the lifting and lowering movement of the lead screw slider 406, eliminating the need for additional sensing or control equipment to control the expansion state of the sealing airbag ring 408.

[0049] Combination Figure 5 and Figure 6 A pair of air reservoirs 410 are respectively disposed below a pair of lead screw sliders 406. The air reservoirs 410 not only serve to store gas, but also limit the downward pressure of the lead screw sliders 406, preventing damage caused by continuous compression between the air reservoirs 410 and the bottom of the lead screw assembly frame 404 during continuous downward pressure. In addition, the air reservoirs 410 provide dust protection for the lifting lead screw 405, preventing impurities from adhering to the lower half of the lifting lead screw 405 during the feeding process via the feed tube 402.

[0050] Combination Figure 5 and Figure 7The vibratory material distribution assembly 5 includes a guide frame 501, an operating rod 502, and a positioning pin 503. The guide frame 501 is fixedly installed between a pair of lead screw assembly frames 404. The guide frame 501 guides the operating rod 502 in raising and lowering, ensuring the verticality of the operating rod 502 during the raising and lowering process, thereby ensuring the effectiveness of subsequent material distribution of the stabilized soil material in the storage assembly 2.

[0051] Combination Figure 5 and Figure 7 The operating lever 502 is slidably mounted within the guide frame 501. The operating lever 502 serves to assemble, fix, and synchronously raise and lower the compaction plate 504. A positioning pin 503 is inserted between the guide frame 501 and the operating lever 502 to position the operating lever 502. The guide frame 501 guides the lifting and sliding of the operating lever 502, and the positioning pin 503 locks and positions the guide frame 501 and the operating lever 502.

[0052] Combination Figure 5 and Figure 7 The vibratory material distribution assembly 5 also includes a compaction plate 504, a control motor 505, and a distribution plate 506. In use, the compaction plate 504 is pressed down to assist in compacting the stabilized soil material filled in the storage and forming cylinder 201. The rotation of the control motor 505 causes the distribution plate 506 to rotate, thereby dispersing the stabilized soil material accumulated in the center of the storage and forming cylinder 201 and preventing the stabilized soil material from accumulating in the center.

[0053] Combination Figure 5 and Figure 7 The compaction plate 504 is fixedly installed at the lower end of the operating lever 502. The compaction plate 504 serves to limit the assembly of the control motor 505 and the material distribution plate 506. The control motor 505 is fixedly installed inside the compaction plate 504. The control motor 505 provides power, and its operation drives the rotation of the material distribution plate 506.

[0054] Combination Figure 5 and Figure 7 The material distribution plate 506 is located below the compaction plate 504 and is fixedly connected to the drive shaft of the control motor 505. The rotation of the material distribution plate 506 can disperse the stabilized soil material in the center to the surrounding area, thereby ensuring the uniformity of the stabilized soil material added in the storage molding cylinder 201.

[0055] Combination Figure 5 and Figure 7The vibratory material distribution assembly 5 also includes multiple vibratory rods 507, multiple sets of eccentric drive shafts 508, and multiple drive pulleys 509. In use, the drive pulleys 509 rotate synchronously with the drive shaft of the control motor 505 via belt drive, thereby driving the eccentric drive shafts 508 to rotate within the vibratory rods 507. The rotation of the eccentric drive shafts 508 causes the vibratory rods 507 to vibrate, thus enabling the vibratory rods 507 to vibrate and compact the stabilized soil material. This further ensures the uniformity of the addition of stabilized soil material in the storage and forming cylinder 201 and improves the forming quality of subsequent stabilized soil standard specimens.

[0056] Combination Figure 5 and Figure 7 Multiple vibratory rods 507 are fixedly installed below the compaction plate 504, and multiple sets of eccentric drive shafts 508 are respectively installed inside the multiple vibratory rods 507. The rotation of the multiple sets of eccentric drive shafts 508 causes the vibratory rods 507 to vibrate under the action of the eccentric drive shafts 508, thereby assisting in the compaction of the stabilized soil material added in the storage molding cylinder 201 through vibration.

[0057] Among them, the vibrating rod 507 is made of elastic material and has a good vibration transmission effect.

[0058] Combination Figure 5 and Figure 7 Multiple drive pulleys 509 are fixedly connected to one end of multiple eccentric drive shafts 508 located within the compaction plate 504. The multiple drive pulleys 509 are connected to the drive shaft of the control motor 505 via belt drive. The belt drive rotates the multiple drive pulleys 509, thereby driving the eccentric drive shafts 508 to rotate.

[0059] In practical use, an extrusion base plate 303 that matches the inner diameter of the material storage forming cylinder 201 is selected and fixedly installed at the top of the extrusion piston rod 302. The extrusion piston rod 302 is extended by supplying hydraulic oil into the hydraulic cylinder 301, and the bottom of the material storage forming cylinder 201 is sealed by the extrusion base plate 303.

[0060] Subsequently, a pair of lead screw motors 407 are driven to operate, causing a pair of lifting lead screws 405 to rotate clockwise. This, in turn, causes a pair of lead screw sliders 406 to descend along with the guide pipe 402 under the action of the threaded engagement. This moves the guide pipe 402 above the storage and forming cylinder 201. Simultaneously, during the descent of the lead screw sliders 406, the air storage bladder 410 is compressed. After being compressed, the internal gas in the air storage bladder 410 is transported along the guide air pipe 409 to the sealing air bladder ring 408. The expansion of the sealing air bladder ring 408 seals the gap between the lower outer side of the guide pipe 402 and the upper inner side of the storage assembly 2. After sealing, stabilized soil material is poured into the guide pipe 402, allowing the stabilized soil material to be transported into the storage and forming cylinder 201 under the guidance of the guide pipe 402.

[0061] During the addition of stabilized soil material, multiple additions can be made as needed. After each addition, pull out the positioning pin 503 and manually move the operating lever 502 into the guide pipe 402 and the storage forming cylinder 201. Simultaneously, the drive control motor 505 rotates, causing the distribution plate 506 to rotate as well. The distribution plate 506 then disperses the added stabilized soil material from the inside out of the storage forming cylinder 201 by rotating and descending. This prevents the stabilized soil material from accumulating in the center of the storage forming cylinder 201.

[0062] In addition, during operation, the control motor 505 drives the eccentric drive shaft 508 to rotate via belt drive. The rotation of the eccentric drive shaft 508 causes the vibrating rod 507 to vibrate, thereby vibrating and compacting the stabilized soil material added in the storage molding cylinder 201.

[0063] After the stabilized soil material is added, the operating rod 502 can be raised again, and the positioning pin 503 is used to position the operating rod 502. Then, by controlling the screw motor 407 to rotate counterclockwise, the guide pipe 402 is lifted. Subsequently, the upper sealing plate 401 can be moved to directly above the storage and forming cylinder 201 by sliding within the sliding guide frame 403, thus sealing the top of the storage and forming cylinder 201.

[0064] Finally, by continuously supplying hydraulic oil into the hydraulic cylinder 301, the extrusion piston rod 302 is controlled to rise continuously, thereby extruding and molding the stabilized soil material in the storage molding cylinder 201. After molding, the stabilized soil standard specimen molded in the storage molding cylinder 201 can be removed by controlling the extrusion piston rod 302 to retract and reset, thus completing the molding and preparation of the stabilized soil standard specimen.

[0065] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A rapid prototyping device for road stabilized soil specimens, characterized in that, include: The system comprises a base (1), a storage assembly (2), an extrusion molding assembly (3), a closed feeding guide assembly (4), and a vibration distributing assembly (5). The base (1) is placed horizontally, the storage assembly (2) is fixedly installed above the base (1), the extrusion molding assembly (3) is installed below the storage assembly (2) and is used to apply molding pressure to the storage assembly (2), and the closed feeding guide assembly (4) is installed above the storage assembly (2). The closed feeding guide assembly (4) includes an upper sealing plate (401) and a guide plate. The upper sealing plate (401) is slidably disposed above the storage assembly (2) to seal the top of the storage assembly (2). The guide pipe (402) is lifted and disposed above the storage assembly (2). The linkage sealing component is fixedly disposed on the outside of the guide pipe (402) to drive the guide pipe (402) to rise and fall and to limit the leakage at the lower end of the guide pipe (402). The vibration distributing component (5) is disposed above the guide pipe (402) to perform distributing and pressing.

2. The rapid prototyping device for road stabilized soil specimens according to claim 1, characterized in that: The storage assembly (2) includes a storage forming cylinder (201), a fixing frame (202), multiple assembly rods (203) and a fixing top plate (204). The storage forming cylinder (201) is located directly above the base (1) and has an open structure at both ends. The fixing frame (202) is fixedly sleeved on the outside of the storage forming cylinder (201).

3. The rapid prototyping device for road stabilized soil specimens according to claim 2, characterized in that: Multiple assembly rods (203) are symmetrically arranged above the base (1) and fixedly connected to the fixing frame (202) and the material storage forming cylinder (201). The fixed top plate (204) is fixedly arranged above the multiple assembly rods (203), and the center of the fixed top plate (204) is provided with a clearance hole that matches the guide tube (402).

4. The rapid prototyping device for road stabilized soil specimens according to claim 1, characterized in that: The extrusion molding assembly (3) includes a hydraulic cylinder (301), an extrusion piston rod (302), and an extrusion base plate (303). The hydraulic cylinder (301) is fixedly installed in the base (1), and the extrusion piston rod (302) is slidably installed in the hydraulic cylinder (301). The extrusion base plate (303) is fixedly connected to the end of the hydraulic cylinder (301) located outside the extrusion piston rod (302) and is located below the material storage assembly (2).

5. The rapid prototyping device for road stabilized soil specimens according to claim 3, characterized in that: The bottom surface of the fixed top plate (204) is fixedly connected to a sliding guide frame (403), and the upper closing plate (401) is slidably disposed in the sliding guide frame (403). The outer dimensions of the upper closing plate (401) are larger than the inner diameter of the material storage forming cylinder (201).

6. The rapid prototyping device for road stabilized soil specimens according to claim 1, characterized in that: The linkage enclosure component includes a pair of lead screw assembly frames (404), a pair of lifting lead screws (405), a pair of lead screw sliders (406), and a pair of lead screw motors (407). The pair of lead screw assembly frames (404) are symmetrically arranged on both sides of the guide tube (402) and fixedly arranged above the fixed top plate (204). The pair of lifting lead screws (405) are respectively rotatably arranged inside the pair of lead screw assembly frames (404). The pair of lead screw sliders (406) are both fixedly connected to the outer side of the guide tube (402) and respectively threadedly connected to the pair of lifting lead screws (405). The pair of lead screw motors (407) are respectively fixedly arranged above the pair of lead screw assembly frames (404), and the output shaft of the lead screw motor (407) is fixedly connected to the lifting lead screw (405).

7. The rapid prototyping device for road stabilized soil specimens according to claim 6, characterized in that: The linkage sealing component also includes a sealing airbag ring (408), a pair of guiding air tubes (409) and a pair of storage air bags (410). The sealing airbag ring (408) is fixedly sleeved on the outside of the guiding tube (402) and located at the lower end of the guiding tube (402). One end of each pair of guiding air tubes (409) is connected to the sealing airbag ring (408). The pair of storage air bags (410) are respectively connected to the other end of the pair of guiding air tubes (409), and the pair of storage air bags (410) are respectively located below a pair of lead screw sliders (406).

8. The rapid prototyping device for road stabilized soil specimens according to claim 6, characterized in that: The vibratory material distribution assembly (5) includes a guide frame (501), an operating rod (502), and a positioning pin (503). The guide frame (501) is fixedly disposed between a pair of lead screw assembly frames (404). The operating rod (502) is slidably disposed within the guide frame (501). The positioning pin (503) is inserted between the guide frame (501) and the operating rod (502) for positioning the operating rod (502).

9. The rapid prototyping device for road stabilized soil specimens according to claim 8, characterized in that: The vibratory material distribution assembly (5) further includes a compaction plate (504), a control motor (505), and a material distribution plate (506). The compaction plate (504) is fixedly disposed at the lower end of the operating rod (502). The control motor (505) is fixedly disposed inside the compaction plate (504). The material distribution plate (506) is disposed below the compaction plate (504) and is fixedly connected to the drive shaft of the control motor (505).

10. The rapid prototyping device for road stabilized soil specimens according to claim 9, characterized in that: The vibratory material distribution assembly (5) also includes multiple vibratory rods (507), multiple sets of eccentric drive shafts (508), and multiple drive pulleys (509). The multiple vibratory rods (507) are all fixedly arranged below the compaction plate (504). The multiple sets of eccentric drive shafts (508) are respectively arranged inside the multiple vibratory rods (507), and the multiple drive pulleys (509) are respectively fixedly connected to one end of the multiple sets of eccentric drive shafts (508) located inside the compaction plate (504). The multiple drive pulleys (509) are belt driven with the transmission shaft of the control motor (505).

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