Sample comminution device

Abstract

The application provides a sample crushing device, relates to the technical field of sample crushing devices, and comprises a sealed stock bin, a detachable screen, a crushing cutter head and a uniform assembly. The uniform assembly comprises a swing part connected with the sealed stock bin, a lifting and rotating part and a driving part connected with the swing part and the lifting and rotating part. The detachable screen is installed in the sealed stock bin, the crushing cutter head is located in the crushing cavity, the swing part is rotationally connected with the sealed stock bin, and the top of the lifting and rotating part is connected with the crushing cutter head. When the sample needs to be crushed, the sample to be crushed is placed in the crushing cavity, the crushing cutter head reciprocates up and down to crush, the driving part drives the swing part to swing the sealed stock bin, and the material in the crushing cavity is concentrated. Through the above-mentioned cooperation, the sample is swung and concentrated while reciprocating up and down to crush, the crushing efficiency and uniformity are greatly improved, for a large amount of samples, the three-dimensional crushing path ensures that all the materials can be uniformly sheared, and the consistency of the final sample is extremely high.

Description

Technical Field

[0001] This invention belongs to the technical field of sample crushing devices, specifically relating to a sample pulverizing and chipping device. Background Technology

[0002] Laboratory sample preparation and pretreatment are crucial steps in the testing and inspection process, and the quality of sample preparation directly affects the accuracy and reliability of subsequent test results. During sample preparation, crushing and pulverizing are common methods for obtaining particle sizes that meet testing requirements.

[0003] Currently, conventional equipment for sample crushing and pulverization mainly includes crushing and reducing machines and vibratory grinders. These conventional devices typically employ high-frequency extrusion, hammering, impact, or grinding to mechanically process samples, meeting the preparation needs of most routine samples. However, for certain samples with specific morphologies, such as specific metals, minerals, medicinal materials, wood, feed, plastics, and industrial auxiliaries, using the aforementioned conventional extrusion, hammering, impact, or grinding methods can easily alter the physical or chemical properties of the sample itself. For example, some samples may undergo phase transitions, thermal deformation, structural damage, or component segregation when subjected to strong impacts or extrusion. This not only fails to achieve the intended sample preparation purpose but may also lead to irreversible changes in the sample's properties or characteristics, thereby affecting the representativeness and accuracy of subsequent testing.

[0004] Therefore, existing technologies increasingly employ pulverizing devices to prepare samples with these special morphologies. Pulverizing devices typically utilize rotating blades to cut and shear the sample, which, compared to methods such as compression or hammering, can reduce changes in sample characteristics to some extent. However, existing pulverizing devices have significant shortcomings in practical applications: their blades are mostly fixed, and the effective crushing range of fixed blades is limited to the vicinity of their rotation plane. When the sample volume is small (e.g., a few milliliters), the material level may be lower than the blade height, causing the blade to idle or resulting in insufficient pulverization. When the sample volume is large, the upper layer of material cannot be effectively agitated, resulting in a stratification phenomenon where the bottom is finely crushed while the top remains unbroken. This leads to localized over-pulverization of the same batch of samples, while other parts retain coarse particles. Summary of the Invention

[0005] In view of this, the present invention provides a sample grinding and chipping device that can uniformly grind samples for different sample processing volumes.

[0006] The technical solution adopted by this invention to solve its technical problem is: A sample crushing and powder-making device includes a sealed hopper, a detachable screen, a crushing head, and a homogenizing component. The homogenizing component includes a swinging part connected to the sealed hopper, a lifting and rotating part, and a drive part connected to the swinging part and the lifting and rotating part. The detachable screen is installed inside the sealed hopper to divide the hopper into a crushing chamber and a collecting chamber. The crushing chamber contains the sample to be crushed, and the crushing head is located inside the crushing chamber. The swinging part is rotatably connected to the sealed hopper, and the top of the lifting and rotating part is connected to the crushing head to crush the sample to be crushed in the crushing chamber. The crushed sample enters the collecting chamber through the detachable screen. The drive part drives the swinging part to swing the sealed hopper, and the drive part drives the lifting and rotating part to move the crushing head up, down, and rotate within the crushing chamber.

[0007] Preferably, the swinging part includes two supports, a base, a connecting rod, a swing plate, a driven rod, and a rotating component. The swing plate has an elongated hole along its length. The connecting rod and the driven rod are parallel to each other and perpendicular to the swing plate. The swing plate and the rotating component are parallel to each other. The two supports are located on opposite sides of the sealing hopper. The upper part of the supports is rotatably connected to the upper part of the sealing hopper, and the lower part of the supports is bolted to the ground. The base is bolted to the ground, and the upper part of the base is fixedly connected to the connecting rod. The connecting rod is rotatably connected to the lower part of the swing plate, and the upper part of the swing plate is rotatably connected to the lower part of the sealing hopper. One end of the driven rod passes through the elongated hole and is movably connected to it. The other end of the driven rod is rotatably connected to one end of the rotating component, and the other end of the rotating component is connected to the driving part to drive the sealing hopper to swing back and forth.

[0008] Preferably, the driving unit includes a first driving motor and a lifting driving component, the output end of the first driving motor is connected to the other end of the rotating component, and the lifting driving component is connected to the lifting rotating part.

[0009] Preferably, the lifting and rotating part includes a splined shaft, a first connecting bearing, a splined sleeve, and a second connecting bearing. A protrusion is provided on the side of the transmission shaft along its length, and a groove is provided inside the splined shaft along its length. The splined shaft is connected to the transmission shaft via the first connecting bearing. The groove of the splined shaft engages with the protrusion of the transmission shaft. The top of the splined shaft is connected to the crushing head, driving the splined shaft to rotate the crushing head. The splined shaft is connected to the splined sleeve, which is connected to the bottom of the crushing chamber via the second connecting bearing. The outside of the splined shaft engages with the splined sleeve to drive its rotation. The lifting drive component is fixedly connected to the side wall of the first connecting bearing to drive the splined shaft to move up and down along the splined sleeve while rotating.

[0010] Preferably, the lifting drive component includes a second drive motor, a transmission shaft, a support frame, and a transmission part. The support frame is connected to the bottom of the sealed hopper. The output end of the second drive motor is connected to the transmission shaft. The transmission shaft is also connected to the transmission part. The transmission part is rotatably connected to the support frame. The transmission part is also connected to the lower part of the lifting rotating part. The transmission shaft is also connected to the lower part of the lifting rotating part to drive the lifting rotating part to rotate and lift.

[0011] Preferably, the transmission unit includes a first transmission wheel, a belt, a second transmission wheel, a first rotating cylinder, a first bevel gear, a second bevel gear, a second rotating cylinder, a first connecting rod, and a second connecting rod. The first rotating cylinder and the second rotating cylinder are perpendicular to each other. The first transmission wheel is connected to the transmission shaft. The first transmission wheel and the second transmission wheel are connected via a belt. The second transmission wheel is connected to one end of the first rotating cylinder. The first rotating cylinder is rotatably connected to the support frame. The other end of the first rotating cylinder is connected to the first bevel gear. The first bevel gear meshes with the second bevel gear. The second bevel gear is connected to one end of the second rotating cylinder. The second rotating cylinder is rotatably connected to the support frame. The other end of the second rotating cylinder is fixedly connected to the first connecting rod. The other end of the first connecting rod is rotatably connected to one end of the second connecting rod. The other end of the second connecting rod is fixedly connected to the side wall of the first connecting bearing.

[0012] Preferably, the lifting and rotating part further includes a protective shell, which is located outside the lifting drive component, and the top of the protective shell is detachably connected to the sealed hopper.

[0013] Preferably, the sealed hopper includes a hopper body and a sealing cover disposed on the top of the hopper body, and the sealing cover is provided with multiple sealing rings inside.

[0014] Preferably, the sealed hopper further includes a locking assembly, which includes a hook disposed on the outer side of the sealing cover and a locking buckle disposed on the outer side of the hopper body. The locking buckle is rotatably connected to the hopper body and is engaged with the hook.

[0015] Preferably, the lower part of the silo body is provided with a discharge silo door, which allows the sample in the collection chamber to be discharged.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention provides a sample crushing and powdering device, including a sealed hopper, a detachable screen, a crushing cutter head, and a homogenizing component. The homogenizing component includes a swinging part connected to the sealed hopper, a lifting and rotating part, and a drive part connected to the swinging part and the lifting and rotating part. The detachable screen is installed inside the sealed hopper to divide the hopper into a crushing chamber and a collecting chamber. The crushing chamber holds the sample to be crushed, and the crushing cutter head is located inside the crushing chamber. The swinging part is rotatably connected to the sealed hopper, and the top of the lifting and rotating part is connected to the crushing cutter head. When the sample needs to be crushed, the sample to be crushed is placed in the crushing chamber, and the drive part drives the lifting and rotating part to... The crushing head moves up and down and rotates within the crushing chamber to crush the sample. The crushed sample automatically enters the collection chamber through a detachable screen. During the reciprocating crushing process of the crushing head, the drive unit drives the swinging unit to swing the sealed hopper, concentrating the material within the crushing chamber. Through this synergy, the sample is simultaneously concentrated and reciprocated, significantly improving crushing efficiency and uniformity. For small or valuable samples, it still meets the stringent homogeneity requirements of subsequent analysis and testing. For large quantities of samples, when the crushing head descends, it powerfully crushes the coarse material at the bottom; when it rises, it disperses the material on the upper layer or throws it against the chamber wall. This three-dimensional crushing path ensures that all materials are uniformly sheared, resulting in extremely high sample consistency and preventing localized over-crushing. For spectral and chromatographic detection, it guarantees the accuracy and reproducibility of the test results. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a front view of the present invention without a protective shell.

[0019] Figure 3 This is a structural schematic diagram of the present invention from another angle.

[0020] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0021] Figure 5 This is a schematic diagram of the structure of the present invention without a protective shell from another angle.

[0022] Figure 6 for Figure 5 A magnified view of a portion of the image.

[0023] Figure 7 This is a cross-sectional view of the present invention without a protective shell.

[0024] In the figure: Sample crushing and chipping device 10, sealed hopper 100, crushing chamber 110, collecting chamber 120, hopper body 130, discharge hopper door 131, sealing cover 140, locking assembly 150, hook 151, locking buckle 152, detachable screen 200, crushing blade 300, swinging part 400, bracket 410, support 420, connecting rod 430, swing plate 440, elongated hole 441, driven rod 450, rotating part 460, lifting and rotating part 500, splined shaft 510, first connecting bearing 5 20. Spline sleeve 530, second connecting bearing 540, protective shell 550, drive unit 600, first drive motor 610, lifting drive component 620, second drive motor 621, transmission shaft 622, support frame 623, transmission unit 624, first transmission wheel 6241, belt 6242, second transmission wheel 6243, first rotating cylinder 6244, first bevel gear 6245, second bevel gear 6246, second rotating cylinder 6247, first connecting rod 6248, second connecting rod 6249. Detailed Implementation

[0025] To facilitate understanding of this application, a more comprehensive description of the application is provided below with reference to the accompanying drawings. Preferred embodiments of the application are also given. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of this application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please refer to Figures 1 to 7This application provides a sample crushing and powdering device 10, including a sealed hopper 100, a detachable screen 200, a crushing cutter head 300, and a homogenizing component. The homogenizing component includes a swinging part 400 connected to the sealed hopper 100, a lifting and rotating part 500, and a driving part 600 connected to the swinging part 400 and the lifting and rotating part 500. The detachable screen 200 is installed inside the sealed hopper 100 to divide the sealed hopper 100 into a crushing chamber 110 and a collecting chamber 120. The crushing chamber 110 carries the sample to be crushed. The crushing cutter head 300... Located within the crushing chamber 110, the swinging part 400 is rotatably connected to the sealed hopper 100, and the top of the lifting and rotating part 500 is connected to the crushing cutter head 300 to crush the sample to be crushed in the crushing chamber 110. The crushed sample enters the collection chamber 120 through the detachable screen 200. The driving part 600 drives the swinging part 400 to swing the sealed hopper 100, and the driving part 600 drives the lifting and rotating part 500 to lift, rotate, and move the crushing cutter head 300 within the crushing chamber 110.

[0028] When a sample needs to be crushed, the drive unit 600 first drives the lifting and rotating unit 500 to simultaneously lift and rotate the crushing head 300 within the crushing chamber 110. During descent, the crushing head 300 powerfully crushes the coarse particles at the bottom; during ascent, it disperses and gathers the material from the upper layer and those thrown against the chamber wall. This three-dimensional crushing path ensures that all material within the crushing chamber 110 is uniformly sheared, fundamentally avoiding the problems of localized over-crushing or under-crushing. The final sample exhibits extremely high particle size consistency, significantly improving the accuracy and reproducibility of detection results for high-precision measurements such as spectroscopy and chromatography.

[0029] Secondly, the swinging part 400 is rotatably connected to the sealed hopper 100, and during the crushing process, the driving part 600 drives the sealed hopper 100 to swing back and forth. The swinging motion causes the material, which was originally dispersed around the cavity wall, to continuously concentrate in the central area, ensuring that the material is always within the efficient working range of the crushing head 300. This mechanism works in conjunction with the lifting and rotating motion of the crushing head 300, which on the one hand increases the probability of contact between the head and the material per unit time, and on the other hand reduces ineffective idling, thereby significantly improving the overall crushing efficiency.

[0030] Furthermore, through the lifting and lowering movement of the crushing head 300, the equipment can flexibly adapt to sample processing needs ranging from extremely small amounts (e.g., a few milliliters) to larger amounts (e.g., hundreds of milliliters). When processing small or valuable samples, the head can be lowered to a lower position, ensuring that the limited material is completely crushed with minimal loss; when processing large amounts of samples, the head reciprocates up and down to agitate the entire chamber, preventing stratification. Therefore, even for high-value or scarce samples, this device can reliably meet the stringent homogeneity requirements of subsequent analytical tests. Simultaneously, the detachable screen 200 divides the sealed hopper 100 into a crushing chamber 110 and a collection chamber 120. Samples that have passed crushing automatically pass through the screen into the collection chamber 120, achieving immediate grading. The detachable screen 200 can be quickly replaced, facilitating the replacement of screens with different apertures to meet particle size requirements, and also promoting thorough cleaning, effectively preventing cross-contamination.

[0031] Finally, the sealed hopper 100 remains sealed throughout the oscillation process, preventing sample splashing or external contamination. Simultaneously, the low-speed reciprocating motion of the oscillation, combined with the high-speed rotation of the crusher head 300, reduces material jamming, lowers the risk of motor overload, and improves the operational stability and service life of the equipment.

[0032] Therefore, this device overcomes long-standing technical problems such as poor uniformity, narrow sample quantity adaptability, and difficulty in processing valuable samples by the coordinated structure of the swing part 400, the lifting and rotating part 500, and the detachable screen 200.

[0033] Furthermore, the swinging part 400 includes two supports 410, a base 420, a connecting rod 430, a swing plate 440, a driven rod 450, and a rotating component 460. The swing plate 440 has an elongated hole 441 along its length. The connecting rod 430 is parallel to the driven rod 450 and perpendicular to the swing plate 440. The swing plate 440 is parallel to the rotating component 460. The two supports 410 are located on opposite sides of the sealed silo 100. The upper part of the supports 410 is rotatably connected to the upper part of the sealed silo 100, and the lower part of the supports 410 is bolted to the ground. The base 420 is connected to the ground. The support 420 is fixedly connected to the connecting rod 430 via bolts. The connecting rod 430 is rotatably connected to the lower part of the swing plate 440. The upper part of the swing plate 440 is rotatably connected to the lower part of the sealed hopper 100. One end of the driven rod 450 passes through the elongated hole 441 and is movably connected to the elongated hole 441. A stop is provided at the end of the driven rod 450 to prevent the driven rod 450 from falling out of the elongated hole 441. The other end of the driven rod 450 is rotatably connected to one end of the rotating member 460. The other end of the rotating member 460 is connected to the driving part 600 to drive the sealed hopper 100 to swing back and forth.

[0034] Furthermore, the connection point between the bracket 410 and the sealed hopper 100 is rotatably connected to the connection point between the swing plate 440 and the sealed hopper 100, and both are located on the same vertical line. Furthermore, the first drive motor 610 may be a finite angle motor.

[0035] Furthermore, the swinging part 400 causes the sealed hopper 100 to swing at an angle of 10°-45° to avoid excessive swing amplitude.

[0036] Furthermore, the drive unit 600 includes a first drive motor 610 and a lifting drive component 620. The output end of the first drive motor 610 is connected to the other end of the rotating component 460, and the lifting drive component 620 is connected to the lifting and rotating part 500.

[0037] Once the sample to be crushed is located in the crushing chamber 110, the crushing head 300 first crushes the sample. Then, the first drive motor 610 is activated as needed. The first drive motor 610 drives the rotating part 460 to rotate. The end of the rotating part 460 connected to the driven rod 450 swings to one side. The driven rod 450 then drives the swing plate 440 to swing to one side. During the swinging process, the driven rod 450 slides in the elongated hole 441. Thus, under the drive of the first drive motor 610, the sealed hopper 100 reciprocates. During the swinging process, the sample to be crushed in the crushing chamber 110 moves closer to the crushing head 300, reducing the crushing dead angle and increasing the chance of the sample to be crushed contacting the crushing head 300, so that the sample to be crushed is crushed evenly and the crushing efficiency is improved.

[0038] When it is necessary to replace the detachable screen or repair the sealed hopper 100, the first drive motor 610 can be started to tilt the sealed hopper 100, and then the first drive motor 610 can be turned off for replacement or repair, making maintenance convenient.

[0039] In one embodiment, there are two supports 420, two connecting rods 430, and two swing plates 440. The two supports 420 are located on opposite sides of the sealed hopper 100, the two connecting rods 430 are located on opposite sides of the sealed hopper 100, and the two swing plates 440 are located on opposite sides of the sealed hopper 100. One of the swing plates 440 is provided with an elongated hole 441. When swinging is not required, the first drive motor 610 acts as a fixing component to fix the swing plate 440, so that the vibration generated during the crushing process of the crushing head 300 will not cause the sealed hopper 100 to move.

[0040] Furthermore, the lifting and rotating part 500 includes a splined shaft 510, a first connecting bearing 520, a splined sleeve 530, and a second connecting bearing 540. The side of the transmission shaft 622 has a protrusion along its length, and the splined shaft 510 has a groove along its length. The splined shaft 510 is connected to the transmission shaft 622 via the first connecting bearing 520. The groove of the splined shaft 510 engages with the protrusion of the transmission shaft 622. The top of the splined shaft 510 is connected to the crushing cutter head 30. The spline shaft 510 is connected to drive the crushing head 300 to rotate. The spline shaft 510 is connected to the spline sleeve 530. The spline sleeve 530 is connected to the bottom of the crushing chamber through the second connecting bearing 540. The outside of the spline shaft 510 cooperates with the spline sleeve 530 to drive the spline sleeve 530 to rotate. The lifting drive component 620 is fixedly connected to the side wall of the first connecting bearing 520 to drive the spline shaft 510 to rise and fall along the spline sleeve 530 while rotating.

[0041] Furthermore, the lifting drive component 620 includes a second drive motor 621, a transmission shaft 622, a support frame 623, and a transmission part 624. The support frame 623 is connected to the bottom of the sealed hopper 100. The output end of the second drive motor 621 is connected to the transmission shaft 622. The transmission shaft 622 is also connected to the transmission part 624. The transmission part 624 is rotatably connected to the support frame 623. The transmission part 624 is also connected to the lower part of the lifting rotating part 500. The transmission shaft 622 is also connected to the lower part of the lifting rotating part 500 to drive the lifting rotating part 500 to rotate and lift.

[0042] Furthermore, the lifting drive 620 enables the crushing head 300 to rotate and rise below the center of the crushing chamber 110, with the lowest descending position of the crushing head 300 close to the top of the detachable screen 200, so that the crushing head 300 can process extremely low sample volumes. Furthermore, the transmission unit 624 includes a first transmission wheel 6241, a belt 6242, a second transmission wheel 6243, a first rotating cylinder 6244, a first bevel gear 6245, a second bevel gear 6246, a second rotating cylinder 6247, a first connecting rod 6248, and a second connecting rod 6249. The first rotating cylinder 6244 and the second rotating cylinder 6247 are perpendicular to each other. The first transmission wheel 6241 is connected to the transmission shaft 622. The first transmission wheel 6241 and the second transmission wheel 6243 are connected via the belt 6242. The second transmission wheel 6243 is connected to one end of the first rotating cylinder 6244. The first rotating cylinder 6244 is rotatably connected to the support frame 623. The other end of the first rotating cylinder 6244 is connected to the first bevel gear 6245. The first bevel gear 6245 meshes with the second bevel gear 6246. The second bevel gear 6246 is connected to one end of the second rotating cylinder 6247. The second rotating cylinder 6247 is rotatably connected to the support frame 623. The other end of the second rotating cylinder 6247 is fixedly connected to the first connecting rod 6248. The other end of the first connecting rod 6248 is rotatably connected to one end of the second connecting rod 6249. The other end of the second connecting rod 6249 is fixedly connected to the side wall of the first connecting bearing 520, so as to drive the spline shaft 510 to move up and down along the spline sleeve 530 while rotating.

[0043] When the sample processing volume is large, the second drive motor 621 is activated. The second drive motor 621 drives the transmission shaft 622 to rotate, which in turn drives the first transmission wheel 6241 and the spline shaft 510 to rotate. The spline shaft 510 drives the spline sleeve 530 to rotate within the crushing chamber 110, thereby driving the crushing cutter head 300 to rotate. Simultaneously, the first transmission wheel 6241 drives the second transmission wheel 6243 to rotate, which in turn drives the first rotating cylinder 6244 and the first bevel gear 6245 to rotate. The first bevel gear 6245 drives the second bevel gear 6246 to rotate. The second bevel gear 6246 drives one end of the second rotating cylinder 6247 to connect. The second rotating cylinder 6247 drives the first connecting rod 6248 to rise or fall. The first connecting rod 6248 drives the second connecting rod 6249 to rise or fall. The second connecting rod 6249 drives the first connecting bearing 520 to rise or fall. Consequently, the spline shaft 510 rises or falls along the spline sleeve 530 while rotating, allowing the crusher head 300 to reciprocate up and down within the crushing chamber 110. Therefore, by cooperating with the second drive motor 621, the first bevel gear 6245, the second bevel gear 6246, the spline shaft 510, and the spline sleeve 530, a single motor can drive the crusher head 300 to reciprocate up and down while rotating.

[0044] When the processing volume is small, when the crushing head 300 descends to the lowest position, the second drive motor 621 is turned off. It is only necessary to remove the detachable pin shaft that rotatably connects the first connecting rod 6248 and the second connecting rod 6249, or remove the belt 6242 that connects the first transmission wheel 6241 and the second transmission wheel 6243. Then, the second drive motor 621 is started. The second drive motor 621 only drives the spline shaft 510 to rotate, realizing rotational crushing. At the same time, the swing part 400 swings, which concentrates the material and facilitates crushing by the crushing head 300.

[0045] Furthermore, the lifting and rotating part 500 also includes a protective shell 550, which is located outside the lifting drive component 620 to enclose the lifting and rotating part 500. The top of the protective shell 550 is detachably connected to the sealed hopper 100 to prevent accidental contact and potential danger.

[0046] Furthermore, the sealed hopper 100 includes a hopper body 130 and a sealing cover 140 disposed above the hopper body 130. The sealing cover 140 is provided with multi-level sealing rings inside to seal during the crushing process and prevent dust from overflowing during the crushing process and causing damage to the laboratory or staff.

[0047] Furthermore, the sealed hopper 100 also includes a locking assembly 150, which includes a hook 151 disposed on the outer side of the sealing cover 140 and a locking buckle 152 disposed on the outer side of the hopper body 130. The locking buckle 152 is rotatably connected to the hopper body 130 and is engaged with the hook 151.

[0048] Furthermore, a discharge door 131 is provided at the lower part of the hopper body 130. The discharge door 131 allows the sample in the collection chamber 120 to be discharged. After crushing is completed, the discharge door 131 is opened to discharge the sample. When the sample in the collection chamber 120 is relatively dispersed, the first drive motor 610 can be started to tilt the sealed hopper 100 toward the side where the discharge door 131 is located. Then the first drive motor 610 is turned off to bring the sample close to the discharge door 131. Then the discharge door 131 is opened to retrieve the sample, making it easier to take out the sample.

[0049] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. Those skilled in the art will understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A sample pulverizing and chipping device, characterized in that, The device includes a sealed hopper, a detachable screen, a crushing cutter head, and a homogenizing component. The homogenizing component includes a swinging part connected to the sealed hopper, a lifting and rotating part, and a drive part connected to the swinging part and the lifting and rotating part. The detachable screen is installed inside the sealed hopper to divide it into a crushing chamber and a collecting chamber. The crushing chamber contains the sample to be crushed, and the crushing cutter head is located inside the crushing chamber. The swinging part is rotatably connected to the sealed hopper, and the top of the lifting and rotating part is connected to the crushing cutter head to crush the sample to be crushed in the crushing chamber. The crushed sample enters the collecting chamber through the detachable screen. The drive part drives the swinging part to swing the sealed hopper, and the drive part drives the lifting and rotating part to move the crushing cutter head up, down, and rotate within the crushing chamber.

2. The sample pulverizing and chipping device as described in claim 1, characterized in that, The swinging part includes two supports, a base, a connecting rod, a swing plate, a driven rod, and a rotating component. The swing plate has an elongated hole along its length. The connecting rod and the driven rod are parallel to each other and perpendicular to the swing plate. The swing plate and the rotating component are parallel to each other. The two supports are located on opposite sides of the sealing hopper. The upper part of the supports is rotatably connected to the upper part of the sealing hopper, and the lower part of the supports is bolted to the ground. The base is bolted to the ground, and the upper part of the base is fixedly connected to the connecting rod. The connecting rod is rotatably connected to the lower part of the swing plate, and the upper part of the swing plate is rotatably connected to the lower part of the sealing hopper. One end of the driven rod passes through the elongated hole and is movably connected to it. The other end of the driven rod is rotatably connected to one end of the rotating component, and the other end of the rotating component is connected to the driving part to drive the sealing hopper to swing back and forth.

3. The sample pulverizing and chipping device as described in claim 2, characterized in that, The drive unit includes a first drive motor and a lifting drive component. The output end of the first drive motor is connected to the other end of the rotating component, and the lifting drive component is connected to the lifting and rotating part.

4. The sample pulverizing and chipping device as described in claim 3, characterized in that, The lifting and rotating part includes a splined shaft, a first connecting bearing, a splined sleeve, and a second connecting bearing. A protrusion is provided on the side of the drive shaft along its length, and a groove is provided inside the splined shaft along its length. The splined shaft is connected to the drive shaft via the first connecting bearing. The groove of the splined shaft engages with the protrusion of the drive shaft. The top of the splined shaft is connected to the crushing head, driving the splined shaft to rotate the crushing head. The splined shaft is connected to the splined sleeve, which is connected to the bottom of the crushing chamber via the second connecting bearing. The outside of the splined shaft engages with the splined sleeve, driving the splined sleeve to rotate. The lifting drive component is fixedly connected to the side wall of the first connecting bearing to drive the splined shaft to move up and down along the splined sleeve while rotating.

5. The sample pulverizing and chipping device as described in claim 4, characterized in that, The lifting drive component includes a second drive motor, a transmission shaft, a support frame, and a transmission part. The support frame is connected to the bottom of the sealed hopper. The output end of the second drive motor is connected to the transmission shaft. The transmission shaft is also connected to the transmission part. The transmission part is rotatably connected to the support frame. The transmission part is also connected to the lower part of the lifting rotating part. The transmission shaft is also connected to the lower part of the lifting rotating part to drive the lifting rotating part to rotate and lift.

6. The sample pulverizing and chipping device as described in claim 5, characterized in that, The transmission unit includes a first transmission wheel, a belt, a second transmission wheel, a first rotating cylinder, a first bevel gear, a second bevel gear, a second rotating cylinder, a first connecting rod, and a second connecting rod. The first rotating cylinder and the second rotating cylinder are perpendicular to each other. The first transmission wheel is connected to the transmission shaft. The first transmission wheel and the second transmission wheel are connected via a belt. The second transmission wheel is connected to one end of the first rotating cylinder. The first rotating cylinder is rotatably connected to the support frame. The other end of the first rotating cylinder is connected to the first bevel gear. The first bevel gear meshes with the second bevel gear. The second bevel gear is connected to one end of the second rotating cylinder. The second rotating cylinder is rotatably connected to the support frame. The other end of the second rotating cylinder is fixedly connected to the first connecting rod. The other end of the first connecting rod is rotatably connected to one end of the second connecting rod. The other end of the second connecting rod is fixedly connected to the side wall of the first connecting bearing.

7. The sample pulverizing and chipping device as described in claim 6, characterized in that, The lifting and rotating part also includes a protective shell, which is located outside the lifting drive component, and the top of the protective shell is detachably connected to the sealed hopper.

8. The sample pulverizing and chipping apparatus according to any one of claims 1-7, characterized in that, The sealed hopper includes a hopper body and a sealing cover disposed on top of the hopper body, and the sealing cover is provided with multiple sealing rings inside.

9. The sample pulverizing and chipping device as described in claim 8, characterized in that, The sealed hopper also includes a locking assembly, which includes a hook disposed on the outer side of the sealing cover and a locking buckle disposed on the outer side of the hopper body. The locking buckle is rotatably connected to the hopper body and is engaged with the hook.

10. The sample pulverizing and chipping device as described in claim 9, characterized in that, The lower part of the chamber is provided with a discharge chamber door, which allows the sample in the collection chamber to be discharged.

Images