A rapid grinding device for soil testing

Abstract

This utility model relates to the field of soil testing technology, specifically to a rapid grinding device for soil testing. It includes a base. This utility model uses a servo motor to drive a swing mechanism, causing the first half-gear to rotate and alternately mesh with the first rack inside the sleeve frame, driving the sleeve frame to reciprocate horizontally. This, in turn, drives the second half-gear and rotating shaft to rotate via a U-shaped frame and the second rack, achieving the reciprocating swing of the swing arm. This causes the outer and inner cylinders to swing synchronously. During the swing, the rollers of the reciprocating mechanism roll along the wave groove of the arc-shaped frame, forcing the slider to compress the return spring and move reciprocally along the guide groove, further driving the outer and inner cylinders to reciprocate horizontally. Through the combined motion of swing and reciprocating movement, the metal grinding balls in the inner cylinder generate multi-directional, high-frequency impacts and friction with the soil sample, increasing the probability and intensity of the collision between the grinding balls and soil particles, thereby achieving rapid and uniform grinding of the soil sample.

Description

Technical Field

[0001] This utility model relates to the field of soil testing technology, and more specifically, to a rapid grinding device for soil testing. Background Technology

[0002] In fields such as environmental monitoring, agricultural research, and geological exploration, chemical and physical analysis of soil samples is a crucial step. However, before testing, the collected blocky or granular soil samples must be thoroughly ground to achieve a uniform and fine powder state to ensure the accuracy and representativeness of subsequent test results.

[0003] Currently, common soil grinding devices typically operate with a single-mode motion in their sample containers, such as simple back-and-forth swinging or horizontal rotation. This single motion mode limits the direction and frequency of the interaction force between the grinding media and soil particles within the container, easily leading to grinding dead zones. Some large soil particles fail to be effectively broken up, resulting in insufficient sample grinding, uneven particle size distribution, and directly affecting the reliability of subsequent test data. Utility Model Content

[0004] The purpose of this invention is to provide a rapid grinding device for soil testing, so as to solve the problems mentioned in the background art.

[0005] To address the above problems, the present invention aims to provide a rapid grinding device for soil testing, comprising a base, an assembly frame fixedly mounted on the upper side of the base via a bracket, a cover plate fixedly mounted on one side of the assembly frame, a rotating shaft rotatably mounted on the side of the cover plate away from the assembly frame, a swing arm fixedly mounted on the rotating shaft, a slider slidably mounted on the swing arm, an outer cylinder fixedly mounted on the side of the slider away from the cover plate, an inner cylinder placed inside the outer cylinder, a swing mechanism for driving the swing arm to swing, and a reciprocating mechanism for driving the slider to reciprocate along the direction approaching or away from the rotating shaft on the swing arm. While the swing mechanism drives the swing arm to swing, the reciprocating mechanism synchronously drives the slider to reciprocate.

[0006] As a further improvement to this technical solution, the reciprocating mechanism includes a guide groove formed on the swing arm, the slider is slidably installed inside the guide groove, and a return spring is fixedly installed between the upper side wall of the slider and the inner wall of the guide groove. The return spring is used to push the slider away from the rotating shaft.

[0007] As a further improvement to this technical solution, the lower sidewall of the slider is integrally formed with a wheel frame, and a roller is rotatably mounted on the lower end of the wheel frame. An arc frame is fixedly mounted on the upper sidewall of the base at a position corresponding to the roller. A wave groove is formed on the inner arc surface of the arc frame, and the roller makes rolling contact with the groove surface of the wave groove.

[0008] As a further improvement to this technical solution, the swing mechanism includes a sleeve frame that is horizontally slidably installed inside the assembly frame, and a U-shaped frame is fixedly installed on one side of the sleeve frame, with the U-shaped frame spanning the cover plate.

[0009] As a further improvement to this technical solution, a second rack is fixedly installed on the side of the U-shaped frame away from the cover plate, and a second half gear is coaxially fixedly installed on the rotating shaft, the second half gear meshing with the second rack.

[0010] As a further improvement to this technical solution, a speed reducer is fixedly installed on the side of the assembly frame away from the cover plate. A servo motor for driving its input shaft to rotate is fixedly installed on the speed reducer. The output shaft of the speed reducer rotates through the assembly frame and is coaxially fixedly installed with a first half gear.

[0011] As a further improvement to this technical solution, the first half gear is located inside the sleeve frame, and the top and bottom sides of the sleeve frame are integrally formed with first racks. When the first half gear rotates, the first half gear meshes alternately with the two first racks.

[0012] As a further improvement to this technical solution, the top of the outer cylinder is threaded with a cylinder cover, and the lower side wall of the cylinder cover and the bottom side inside the outer cylinder respectively contact the upper and lower ends of the inner cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This rapid grinding device for soil testing uses a servo motor to drive a swing mechanism, causing the first half-gear to rotate and alternately mesh with the first rack inside the sleeve frame, driving the sleeve frame to reciprocate horizontally. This, in turn, drives the second half-gear and the rotating shaft to rotate via the U-shaped frame and the second rack, realizing the reciprocating swing of the swing arm. This causes the outer and inner cylinders to swing synchronously. During the swing, the rollers of the reciprocating mechanism roll along the wave groove of the arc frame, forcing the slider to compress the return spring and move reciprocally along the guide groove, further driving the outer and inner cylinders to reciprocate horizontally. Through the combined motion of swing and reciprocating movement, the metal grinding balls in the inner cylinder generate multi-directional, high-frequency impacts and friction with the soil sample, increasing the probability and intensity of the collision between the grinding balls and the soil particles, thereby achieving rapid and uniform grinding of the soil sample. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is one of the partial structural schematic diagrams of this utility model; Figure 3 This is the second partial structural schematic diagram of the present utility model; Figure 4 This is the third partial structural schematic diagram of this utility model; Figure 5 This is an exploded view of part of the structure of this utility model; Figure 6 This is the fourth partial structural schematic diagram of this utility model.

[0015] The meanings of the labels in the diagram are as follows: 1. Base; 2. Assembly frame; 3. Cover plate; 31. Shaft; 4. Swing arm; 5. Slider; 6. Outer cylinder; 61. cylinder cover; 62. inner cylinder; 7. Swinging mechanism; 71. Sleeve frame; 72. First rack; 73. U-shaped frame; 74. Second rack; 75. Reducer; 76. Servo motor; 77. First half gear; 78. Second half gear; 8. Reciprocating mechanism; 81. Guide groove; 82. Return spring; 83. Wheel frame; 84. Roller; 85. Arc frame; 86. Wave groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 Please see Figure 1 As shown, the purpose of this embodiment is to provide a rapid grinding device for soil testing, including a base 1, an assembly frame 2 fixedly installed on the upper side of the base 1 by a bracket, a cover plate 3 fixedly installed on one side of the assembly frame 2, a rotating shaft 31 rotatably installed on the side of the cover plate 3 away from the assembly frame 2, a swing arm 4 fixedly installed on the rotating shaft 31, and a swing mechanism 7 for driving the swing arm 4 to swing on the assembly frame 2.

[0018] The structure of the swing mechanism 7 is described in detail below, with reference to... Figure 2 and Figure 3The swing mechanism 7 includes a sleeve 71 that is horizontally slidably installed inside the assembly frame 2. A U-shaped frame 73 is fixedly installed on one side of the sleeve 71. The U-shaped frame 73 spans the cover plate 3. A second rack 74 is fixedly installed on the side of the U-shaped frame 73 away from the cover plate 3. A second half gear 78 is coaxially fixedly installed on the rotating shaft 31. The second half gear 78 meshes with the second rack 74. A reducer 75 is fixedly installed on the side of the assembly frame 2 away from the cover plate 3. A servo motor 76 for driving its input shaft to rotate is fixedly installed on the reducer 75. The output shaft of the reducer 75 rotates through the assembly frame 2 and is coaxially fixedly installed with a first half gear 77. The first half gear 77 is located inside the sleeve 71. The top and bottom sides of the sleeve 71 are integrally formed with first racks 72. When the first half gear 77 rotates, the first half gear 77 meshes alternately with the two first racks 72.

[0019] When the servo motor 76 starts, its output shaft drives the input shaft of the reducer 75 to rotate. After the reducer 75 reduces the speed and increases the torque, it drives the first half gear 77 to rotate. Since the first half gear 77 only has teeth distributed on half of its circumference, during the rotation, its teeth will alternately mesh with the upper and lower first racks 72 inside the sleeve frame 71, thereby pushing the sleeve frame 71 to make horizontal reciprocating motion along the inner wall of the assembly frame 2. The reciprocating motion of the sleeve frame 71 drives the second rack 74 to move synchronously through the U-shaped frame 73. The second rack 74 then meshes with the second half gear 78, thereby driving the rotating shaft 31 to achieve reciprocating rotation, and finally driving the swing arm 4 to form a swinging motion.

[0020] In addition, a protective cover can be installed on the cover plate 3. The protective cover wraps around the outside of the second rack 74 and the second half gear 78, which protects the second rack 74 and the second half gear 78 and prevents foreign objects from getting stuck in the meshing of the second rack 74 and the second half gear 78, affecting the transmission between them and causing the swing mechanism 7 to malfunction.

[0021] Reference Figure 4 and Figure 5 A slider 5 is slidably mounted on the swing arm 4. An outer cylinder 6 is fixedly mounted on the side of the slider 5 away from the cover plate 3. An inner cylinder 62 is placed inside the outer cylinder 6. Both the outer cylinder 6 and the inner cylinder 62 are cylindrical bodies with open tops. The outer diameter of the inner cylinder 62 is matched with the inner diameter of the outer cylinder 6. A cylinder cover 61 is threadedly connected to the top of the outer cylinder 6. The lower side wall of the cylinder cover 61 and the bottom side inside the outer cylinder 6 respectively contact the upper and lower ends of the inner cylinder 62, thereby sealing the openings of the inner cylinder 62 and the outer cylinder 6, restricting the displacement of the inner cylinder 62 relative to the outer cylinder 6, and ensuring the stability of the inner cylinder 62.

[0022] A reciprocating mechanism 8 is also provided on the swing arm 4 for driving the slider 5 to reciprocate along the direction of approaching or moving away from the rotating shaft 31.

[0023] In actual use, the operator places the soil sample to be ground and several metal grinding balls into the inner cylinder 62, then puts the inner cylinder 62 into the outer cylinder 6, and tightens the cylinder cap 61 to fix the inner cylinder 62. Then, the servo motor 76 is started, and the swing arm 4 is driven to swing through the swing mechanism 7. The swing arm 4 drives the slider 5, the outer cylinder 6 and the inner cylinder 62 to swing synchronously. While the swing mechanism 7 drives the swing arm 4 to swing, the reciprocating mechanism 8 drives the slider 5 to reciprocate. The slider 5 drives the outer cylinder 6 and the inner cylinder 62 to move synchronously, so that the outer cylinder 6 and the inner cylinder 62 superimpose horizontal reciprocating motion on the basis of swing.

[0024] Through a combination of oscillation and reciprocating motion, the metal grinding balls in the inner cylinder 62 generate multi-directional, high-frequency impacts and friction with the soil sample. This combination of motion increases the probability and intensity of the collision between the metal balls and the soil particles, thereby achieving rapid and uniform grinding of the soil sample and providing an ideal sample condition for subsequent testing.

[0025] The structure of reciprocating mechanism 8 is detailed below, referring to... Figures 4-6 The reciprocating mechanism 8 includes a guide groove 81 formed on the swing arm 4. The slider 5 is slidably installed inside the guide groove 81. A return spring 82 is fixedly installed between the upper side wall of the slider 5 and the inner wall of the guide groove 81. The return spring 82 is used to push the slider 5 away from the rotating shaft 31. The lower side wall of the slider 5 is integrally formed with a wheel frame 83. A roller 84 is rotatably installed at the lower end of the wheel frame 83. An arc frame 85 is fixedly installed on the upper side wall of the base 1 at a position corresponding to the roller 84. The upper side wall of the arc frame 85 is set as an inner arc surface. The axis of the inner arc surface is collinear with the axis of the rotating shaft 31. A wave groove 86 is formed on the inner arc surface of the arc frame 85. The roller 84 rolls in contact with the groove surface of the wave groove 86.

[0026] When the swing mechanism 7 drives the swing arm 4 to swing around the rotating shaft 31, since the axis of the inner arc surface of the arc frame 85 is collinear with the axis of the rotating shaft 31, the roller 84 can always maintain rolling contact with the groove surface of the wave groove 86. When the roller 84 rolls from the trough of the wave groove 86 to the top of the groove, the wave groove 86 forces the roller 84 to drive the wheel frame 83 and the slider 5 to move towards the rotating shaft 31. The return spring 82 is compressed and elastically contracts. When the roller 84 rolls from the top of the wave groove 86 to the trough, the return spring 82 rebounds and pushes the slider 5, the wheel frame 83 and the roller 84 to return to their original positions, so that the roller 84 maintains contact with the groove surface of the wave groove 86. This cycle is repeated to realize the reciprocating motion of the slider 5 during the swing process, which further enhances the collision and friction effect between the metal grinding ball in the inner cylinder 62 and the soil sample.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rapid grinding device for soil testing, comprising a base (1), characterized in that: An assembly frame (2) is fixedly installed on the upper side of the base (1) by a bracket. A cover plate (3) is fixedly installed on one side of the assembly frame (2). A rotating shaft (31) is rotatably installed on the side of the cover plate (3) away from the assembly frame (2). A swing arm (4) is fixedly installed on the rotating shaft (31). A slider (5) is slidably installed on the swing arm (4). An outer cylinder (6) is fixedly installed on the side of the slider (5) away from the cover plate (3). An inner cylinder (62) is placed inside the outer cylinder (6). A swing mechanism (7) for driving the swing arm (4) to swing is provided on the assembly frame (2). A reciprocating mechanism (8) for driving the slider (5) to reciprocate along the direction close to or away from the rotating shaft (31) is provided on the swing arm (4). While the swing mechanism (7) drives the swing arm (4) to swing, the reciprocating mechanism (8) synchronously drives the slider (5) to reciprocate.

2. The rapid grinding device for soil testing according to claim 1, characterized in that: The reciprocating mechanism (8) includes a guide groove (81) opened on the swing arm (4), the slider (5) is slidably installed inside the guide groove (81), and a return spring (82) is fixedly installed between the upper side wall of the slider (5) and the inner wall of the guide groove (81). The return spring (82) is used to push the slider (5) away from the rotating shaft (31).

3. The rapid grinding device for soil testing according to claim 2, characterized in that: The lower sidewall of the slider (5) is integrally formed with a wheel frame (83), and a roller (84) is rotatably installed at the lower end of the wheel frame (83). An arc frame (85) is fixedly installed on the upper sidewall of the base (1) at the position corresponding to the roller (84). A wave groove (86) is opened on the inner arc surface of the arc frame (85), and the roller (84) rolls in contact with the groove surface of the wave groove (86).

4. The rapid grinding device for soil testing according to claim 1, characterized in that: The swing mechanism (7) includes a sleeve (71) that is horizontally slidably installed inside the assembly frame (2). A U-shaped frame (73) is fixedly installed on one side of the sleeve (71), and the U-shaped frame (73) is arranged across the cover plate (3).

5. The rapid grinding device for soil testing according to claim 4, characterized in that: A second rack (74) is fixedly installed on the side of the U-shaped frame (73) away from the cover plate (3), and a second half gear (78) is fixedly installed on the rotating shaft (31) coaxially. The second half gear (78) meshes with the second rack (74).

6. The rapid grinding device for soil testing according to claim 5, characterized in that: A speed reducer (75) is fixedly installed on the side of the assembly frame (2) away from the cover plate (3). A servo motor (76) for driving its input shaft to rotate is fixedly installed on the speed reducer (75). The output shaft of the speed reducer (75) rotates through the assembly frame (2) and is coaxially fixedly installed with a first half gear (77).

7. The rapid grinding device for soil testing according to claim 6, characterized in that: The first half gear (77) is located inside the sleeve frame (71). The top and bottom sides of the sleeve frame (71) are integrally formed with the first rack (72). When the first half gear (77) rotates, the first half gear (77) meshes alternately with the two first racks (72).

8. The rapid grinding device for soil testing according to claim 1, characterized in that: The top of the outer cylinder (6) is threaded with a cylinder cover (61), and the lower side wall of the cylinder cover (61) and the bottom side inside the outer cylinder (6) respectively contact the upper and lower ends of the inner cylinder (62).

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