Chemical experiment stirring equipment

Abstract

The utility model belongs to the field of chemical engineering, and particularly relates to chemical engineering experiment stirring equipment which comprises a stirring barrel, a rotating shaft is rotatably connected in the stirring barrel, a plurality of stirring rods are fixedly connected to the rotating shaft, the rotating shaft penetrates through the upper wall of the stirring barrel, a gear is fixedly connected to the upper end of the rotating shaft, and the gear rotates at the upper end of the stirring barrel. And the upper end of the stirring barrel is fixedly connected with a bracket. The device is reasonable in structure, the nut is driven to reciprocate in the support through rotation of the reciprocating lead screw, the nut pushes the rack to reciprocate, the rack is meshed with the gear, and then the rack drives the gear to alternately rotate forwards and backwards. The gear drives the stirring rod to do positive and negative alternate motion in the stirring barrel through the rotating shaft, so that chemical raw materials are ensured to be stirred in multiple directions and at multiple angles in the stirring process, uniform mixing of the materials is promoted, deposition or non-uniform distribution of the materials in the stirring barrel is avoided, and the stirring effect and the material treatment efficiency are improved.

Description

Technical Field

[0001] This utility model belongs to the field of chemical industry, specifically a chemical experimental stirring device. Background Technology

[0002] Chemical engineering refers to the technology of altering the composition and structure of substances or synthesizing new substances through chemical methods, encompassing fields such as chemical processes, chemical industry, and chemical engineering. Chemical processes refer to the techniques for producing chemicals or chemical products using chemical reactions. Initially produced in small workshops, these processes later developed into large-scale factories, forming the chemical industry. Chemical engineering studies the universally applicable laws governing the production of chemical products. Chemical products have played a crucial role in historical development, and the production and application of many chemicals represent significant advancements in human civilization.

[0003] Currently, various methods have been proposed for a chemical experimental mixing device in the prior art. For example, a patent application with publication number CN216260327U discloses a chemical experimental mixing device, which includes a motor, a rotating shaft at the output end of the motor, connecting plates on the surface of the rotating shaft, a first connecting column and a second connecting column at both ends of the connecting plates, a third connecting column on the surface of the first and second connecting columns, a first scraper and a second scraper at one end of the third connecting column, and stirring blocks on the surface of the rotating shaft. With this configuration, when the motor is working, the motor drives the connecting plates to rotate through the rotating shaft. The connecting plates then drive the first and second scrapers to rotate through the first, second, and third connecting columns. This causes the first and second scrapers to scrape off the raw materials adhering to the inner wall of the mixing tank, preventing the raw materials from adhering to the inner wall of the mixing tank and failing to mix them thoroughly.

[0004] The above technical solution proposes to use a motor to drive the connecting plate to rotate via a rotating shaft. This, in turn, causes the connecting plate to drive the first and second scraper blocks to rotate via the first, second, and third connecting columns. This solves the problem of scraping off the raw materials adhering to the inner wall of the mixing tank, preventing the raw materials from sticking to the inner wall and failing to mix thoroughly. However, the direction of rotation of the mixing blocks remains constant. Since the rotation trajectory or direction of the mixing blocks is not changed, some areas will always be subjected to the same stirring force during the mixing process, while other areas will be insufficiently mixed due to weaker stirring force, resulting in an uneven mixing effect of the materials.

[0005] Therefore, this utility model provides a chemical experimental stirring device. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A chemical experimental mixing device of this utility model includes a mixing drum, a rotating shaft rotatably connected inside the mixing drum, a plurality of stirring rods fixedly connected to the rotating shaft, the rotating shaft penetrating the upper wall of the mixing drum, a gear fixedly connected to the upper end of the rotating shaft, the gear rotating at the upper end of the mixing drum, a bracket fixedly connected to the upper end of the mixing drum, a reciprocating screw rotatably connected to the inner wall of the bracket, a nut threaded onto the reciprocating screw, a rack fixedly connected to the side wall of the nut, the rack meshing with the gear, a guide mechanism for guiding the nut installed inside the bracket, a feeding box communicating with the side wall of the mixing drum, a U-shaped frame fixedly connected to the upper end of the feeding box, an acceleration mechanism for accelerating the falling of materials installed on the U-shaped frame, a fixed column fixedly connected to the lower end of the mixing drum, a feeding pipe communicating with the lower end of the mixing drum, and a handwheel provided on the feeding pipe.

[0008] Preferably, a motor is fixedly connected to the upper end of the stirring drum, and the output shaft of the motor is fixedly connected to a reciprocating lead screw.

[0009] Preferably, the guiding mechanism includes a slider, which is fixedly mounted on the side wall of the nut, and the side wall of the bracket is provided with a groove, in which the slider slides.

[0010] Preferably, the acceleration mechanism includes a rotating rod, a cam, a rectangular plate, and a striking hammer. The rotating rod is fixedly mounted on a reciprocating lead screw, passes through a rotating bracket, and passes through a rotating U-shaped frame. The cam is fixedly mounted on the end of the rotating rod away from the reciprocating lead screw. The rectangular plate slides within the U-shaped frame. The striking hammer is fixedly mounted on the lower end of the rectangular plate. A reset mechanism for resetting the rectangular plate is installed within the U-shaped frame, and a limiting mechanism for limiting the rectangular plate is installed within the U-shaped frame.

[0011] Preferably, the reset mechanism includes a spring, one end of which is fixedly installed on the upper end of the rectangular plate, and the other end of which is fixedly installed on the inner upper wall of the U-shaped frame.

[0012] Preferably, the limiting mechanism includes two sliding plates, both of which are fixedly installed on the two side walls of the rectangular plate. The U-shaped frame has two sliding tracks on its inner wall, and the sliding plates slide in adjacent sliding tracks.

[0013] Preferably, the lower end of the fixing column is made of a non-slip material.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The chemical experimental mixing equipment described in this utility model uses the rotation of a reciprocating screw to drive a nut to move back and forth within a support, which in turn drives a rack to move back and forth. The rack meshes with a gear, causing the rack to drive the gear to rotate alternately in both directions. The gear, through a rotating shaft, drives a stirring rod to rotate alternately in both directions within the mixing tank. This ensures that the chemical raw materials are stirred in multiple directions and at multiple angles during the mixing process, which helps to achieve uniform mixing of the materials and avoids sedimentation or uneven distribution of materials within the mixing tank.

[0016] 2. The chemical experimental mixing device of this utility model utilizes a reciprocating screw that rotates simultaneously with a rotating rod. The rotating rod, in turn, drives a cam to rotate, causing the cam to continuously strike a rectangular plate. When the cam contacts the rectangular plate, the plate moves upward, compressing a spring. When the cam is no longer in contact with the plate, the compressed spring instantly returns to its original position, causing the rectangular plate to move downward. This movement, in turn, causes a striking hammer to strike the feeding box, generating vibration that loosens the material within the box and accelerates its descent. Simultaneously, the vibration breaks down the cohesive forces between materials, improving material flowability and preventing blockages. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a cross-sectional view of the stirring cylinder in this utility model;

[0020] Figure 3 This is a schematic diagram of the acceleration mechanism in this utility model;

[0021] Figure 4 yes Figure 1 Enlarged view of a portion of point A in the middle;

[0022] Figure 5 yes Figure 3 Enlarged view of a section at point B in the middle;

[0023] In the diagram: 1. Mixing drum; 2. Support; 3. Reciprocating screw; 4. Rack; 5. Gear; 6. Rotating rod; 7. U-shaped frame; 8. Feed box; 9. Handwheel; 10. Feed pipe; 11. Fixed column; 12. Motor; 13. Rotating shaft; 14. Spring; 15. Rectangular plate; 16. Cam; 17. Hammer; 18. Nut; 19. Slider; 20. Slide groove; 21. Slide plate; 22. Slide track; 23. Mixing rod. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] like Figures 1 to 5 As shown in the embodiment of this utility model, a chemical experimental stirring device includes a stirring drum 1. A rotating shaft 13 is rotatably connected inside the stirring drum 1. A plurality of stirring rods 23 are fixedly connected to the rotating shaft 13. The rotating shaft 13 passes through the upper wall of the stirring drum 1. A gear 5 is fixedly connected to the upper end of the rotating shaft 13 and rotates at the upper end of the stirring drum 1. A support 2 is fixedly connected to the upper end of the stirring drum 1. A reciprocating screw 3 is rotatably connected to the inner wall of the support 2, and a nut is threaded onto the reciprocating screw 3. 18. A rack 4 is fixedly connected to the side wall of the nut 18. The rack 4 meshes with the gear 5. A guide mechanism for guiding the nut 18 is installed inside the bracket 2. A feeding box 8 is connected to the side wall of the mixing drum 1. A U-shaped frame 7 is fixedly connected to the upper end of the feeding box 8. An acceleration mechanism for accelerating the falling of materials is installed on the U-shaped frame 7. A fixing column 11 is fixedly connected to the lower end of the mixing drum 1. A feeding pipe 10 is connected to the lower end of the mixing drum 1. A handwheel 9 is provided on the feeding pipe 10. During operation, the rotation of the reciprocating screw 3 causes the nut 18 to reciprocate along the slide groove 20, which in turn causes the nut 18 to drive the rack 4 to reciprocate. Since the rack 4 meshes with the gear 5, the gear 5 will rotate synchronously during the movement of the rack 4. The gear 5 rotates alternately in both directions, which causes the gear 5 to drive the stirring rod 23 to rotate alternately in both directions in the stirring drum 1 through the rotating shaft 13. The multi-directional stirring allows chemical raw materials with different properties to interact more evenly, thereby improving the efficiency of the chemical reaction and ensuring the stability of the final product quality.

[0027] like Figure 1 As shown, a motor 12 is fixedly connected to the upper end of the stirring drum 1, and the output shaft of the motor 12 is fixedly connected to the reciprocating lead screw 3. During operation, the motor 12 drives the reciprocating lead screw 3 to rotate. The rotation of the reciprocating lead screw 3 causes the nut 18 to reciprocate along the slide groove 20, which in turn causes the nut 18 to drive the rack 4 to reciprocate, so as to complete the subsequent work of the gear 5 driving the stirring rod 23 to rotate alternately in the stirring drum 1 via the rotating shaft 13.

[0028] like Figure 1 and Figure 4As shown, the guiding mechanism includes a slider 19, which is fixedly mounted on the side wall of the nut 18. A groove 20 is provided on the side wall of the bracket 2, and the slider 19 slides within the groove 20. It should be noted that the width of the groove 20 is slightly larger than the width of the slider 19, allowing the slider 19 to slide freely within the groove 20. Simultaneously, the side wall of the groove 20 limits the movement of the slider 19, thus preventing the nut 18 from shifting due to the rotation of the reciprocating screw 3, avoiding separation of the rack 4 and gear 5, and ensuring smooth operation of the equipment.

[0029] like Figure 3 and Figure 5 As shown, the acceleration mechanism includes a rotating rod 6, a cam 16, a rectangular plate 15, and a striking hammer 17. The rotating rod 6 is fixedly mounted on the reciprocating lead screw 3, passes through the rotating bracket 2, and passes through the rotating U-shaped frame 7. The cam 16 is fixedly mounted on the end of the rotating rod 6 away from the reciprocating lead screw 3. The rectangular plate 15 slides within the U-shaped frame 7. The striking hammer 17 is fixedly mounted on the lower end of the rectangular plate 15. A reset mechanism for resetting the rectangular plate 15 is installed within the U-shaped frame 7, and a limiting mechanism for limiting the rectangular plate 15 is also installed within the U-shaped frame 7. It should be noted that the contact area between the rectangular plate 15 and the cam 16 is rounded, which effectively reduces the direct contact surface between the rectangular plate 15 and the cam 16, reduces friction, thereby reducing wear between components and extending the service life of the equipment.

[0030] like Figure 3 As shown, the reset mechanism includes a spring 14, one end of which is fixedly mounted on the upper end of the rectangular plate 15, and the other end of which is fixedly mounted on the inner upper wall of the U-shaped frame 7. With this structure, when the spring 14 resets from its compressed state, it instantly extends, causing the rectangular plate 15 to move downwards. Due to the elasticity of the spring 14, the downward movement of the rectangular plate 15 exceeds its initial position, generating additional impact force. This impact force, through the striking hammer 17 striking the feed box 8, generates vibration, thereby accelerating the falling and flowing of materials and reducing the time materials remain in the equipment.

[0031] like Figure 3 and Figure 5 As shown, the limiting mechanism includes two sliding plates 21, each fixedly mounted on one of the two side walls of the rectangular plate 15. The U-shaped frame 7 has two sliding tracks 22 on its inner wall, and the sliding plates 21 slide within adjacent sliding tracks 22. Furthermore, the lowest point of the sliding track 22 is a short distance from the rectangular plate 15, so that the striking hammer 17 will exceed its initial position during its downward movement, achieving the effect of striking the material box 8.

[0032] like Figure 1As shown, the lower end of the fixing column 11 is made of anti-slip material. This structure makes the equipment more stable during operation, preventing the equipment body from tilting and ensuring smooth operation.

[0033] During operation, the motor 12 is started, which drives the reciprocating screw 3 to rotate. The rotation of the reciprocating screw 3 causes the nut 18 to reciprocate along the slide groove 20, which in turn causes the nut 18 to drive the rack 4 to reciprocate. Since the rack 4 meshes with the gear 5, the gear 5 will rotate synchronously during the movement of the rack 4. The gear 5 rotates alternately in both directions, which causes the gear 5 to drive the stirring rod 23 to rotate alternately in both directions in the stirring drum 1 through the rotating shaft 13. The multi-directional stirring allows chemical raw materials with different properties to interact more evenly, thereby improving the efficiency of the chemical reaction and ensuring the stability of the final product quality.

[0034] Meanwhile, the reciprocating screw 3's rotating rod 6 rotates, causing the cam 16 to rotate. When the protruding part of the cam 16 contacts the rectangular plate 15, the rectangular plate 15 moves upward, compressing the spring 14. When the cam 16 no longer contacts the rectangular plate 15, the compressed spring 14 instantly resets, causing the rectangular plate 15 to instantly move downward. This, in turn, causes the rectangular plate 15 to drive the striking hammer 17 downward, causing the striking hammer 17 to strike the feeding box 8 and generate vibration. This prevents material from accumulating or stagnating in the equipment, ensuring a more stable workflow and improving the overall efficiency of the mixing or processing process. After mixing is complete, the motor 12 is stopped, and the handwheel 9 is turned, causing the material in the mixing drum 1 to flow out from the feeding pipe 10.

[0035] 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 illustrative of the principles of this 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 chemical experimental stirring device, characterized in that: The system includes a mixing drum (1), inside which a rotating shaft (13) is rotatably connected. Several stirring rods (23) are fixedly connected to the rotating shaft (13). The rotating shaft (13) passes through the upper wall of the mixing drum (1). A gear (5) is fixedly connected to the upper end of the rotating shaft (13), and the gear (5) rotates at the upper end of the mixing drum (1). A bracket (2) is fixedly connected to the upper end of the mixing drum (1). A reciprocating screw (3) is rotatably connected to the inner wall of the bracket (2). A nut (18) is threaded onto the reciprocating screw (3). The nut (18)... A rack (4) is fixedly connected to the side wall, and the rack (4) meshes with a gear (5). A guide mechanism for guiding the nut (18) is installed inside the bracket (2). A feeding box (8) is connected to the side wall of the mixing drum (1). A U-shaped frame (7) is fixedly connected to the upper end of the feeding box (8). An acceleration mechanism for accelerating the falling of materials is installed on the U-shaped frame (7). A fixed column (11) is fixedly connected to the lower end of the mixing drum (1). A feeding pipe (10) is connected to the lower end of the mixing drum (1). A handwheel (9) is provided on the feeding pipe (10).

2. The chemical experimental stirring device according to claim 1, characterized in that: A motor (12) is fixedly connected to the upper end of the stirring drum (1), and the output shaft of the motor (12) is fixedly connected to the reciprocating lead screw (3).

3. The chemical experimental stirring device according to claim 1, characterized in that: The guiding mechanism includes a slider (19), which is fixedly installed on the side wall of the nut (18). The side wall of the bracket (2) is provided with a groove (20), and the slider (19) slides in the groove (20).

4. The chemical experimental stirring device according to claim 1, characterized in that: The acceleration mechanism includes a rotating rod (6), a cam (16), a rectangular plate (15), and a striking hammer (17). The rotating rod (6) is fixedly mounted on the reciprocating screw (3). The rotating rod (6) passes through the rotating bracket (2) and the rotating U-shaped frame (7). The cam (16) is fixedly mounted at the end of the rotating rod (6) away from the reciprocating screw (3). The rectangular plate (15) slides inside the U-shaped frame (7). The striking hammer (17) is fixedly mounted at the lower end of the rectangular plate (15). A reset mechanism for resetting the rectangular plate (15) is installed inside the U-shaped frame (7). A limiting mechanism for limiting the rectangular plate (15) is installed inside the U-shaped frame (7).

5. A chemical experimental stirring device according to claim 4, characterized in that: The reset mechanism includes a spring (14), one end of which is fixedly installed on the upper end of the rectangular plate (15), and the other end of which is fixedly installed on the inner upper wall of the U-shaped frame (7).

6. A chemical experimental stirring device according to claim 4, characterized in that: The limiting mechanism includes two sliding plates (21), which are fixedly installed on both sides of the rectangular plate (15). The U-shaped frame (7) has two slide rails (22) on its inner wall, and the sliding plates (21) slide in the adjacent slide rails (22).

7. A chemical experimental stirring device according to claim 1, characterized in that: The lower end of the fixed column (11) is made of anti-slip material.

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