Experimental small-size vertical kneading machine for solid propellant kneading safety detection

Abstract

The invention provides an experimental small-size vertical kneading machine for solid propellant kneading safety detection, which comprises a base, a rack mounted on the base, a mounting seat arranged on the rack, and a power module, a transmission module and a stirring module which are arranged on the mounting seat, a first gear, a second gear, a third gear, a fourth gear and a fifth gear are arranged in the transmission module, the first gear is arranged on the first transmission shaft, the second gear is meshed with the first gear, the second gear is arranged in the transmission box, and two second transmission shafts are eccentrically arranged on the second gear; the third gear, the fourth gear and the fifth gear are all arranged above the transmission box, the third gear is externally meshed with the fourth gear, the fourth gear is internally meshed with the fifth gear, and the third gear and the fourth gear are connected with the second transmission shaft in a sleeved mode. The device adopts a vertical design, is small in size and small in occupied space, is suitable for experiments, can continuously run at a high speed, and improves the stirring efficiency, the safety and the reliability.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of kneaders, in particular to a small-size vertical kneader for solid propellant kneading safety detection. BACKGROUND

[0002] A kneader is an advanced mixing device specially designed for efficient mixing, dispersion and homogenization of high-viscosity and high-elasticity materials. It is widely used in the fields of high polymer materials, lithium battery materials, nanocomposites, pharmaceutical preparations, food additives, etc., and is particularly suitable for continuous production processes that require rapid reaction and high-efficiency shearing. Solid propellants and other energetic materials are subjected to shearing, friction and extrusion during kneading, which poses an inherent risk of combustion or explosion. Once an accident occurs in a traditional pilot or large-scale kneader, the large amount of explosive material can destroy the entire device and even the entire workshop, causing catastrophic casualties and property losses. SUMMARY

[0003] Therefore, the present application aims to overcome the defects in the prior art and provide a small-size vertical kneader for solid propellant kneading safety detection, which can effectively reduce the occupied space. At the same time, it can continuously operate at high speed to knead the material, effectively improving the stirring efficiency and predicting the risk of the kneading process.

[0004] To achieve the above-mentioned purposes, the technical solution of the present application is as follows: A small-size vertical kneader for solid propellant kneading safety detection, comprising a base, a rack mounted on the base, a mounting seat provided on the rack, a power module, a transmission module and a stirring module provided on the mounting seat; The power module is provided with a motor and a torque sensor, the lower end of the motor is fixed to the rack through the torque sensor connected thereto by a key, the torque sensor is connected to a first transmission shaft by a key, and the first transmission shaft transmits power to the transmission module; The transmission module is provided with a first gear, a second gear, a third gear, a fourth gear and a fifth gear, the first gear is provided on the first transmission shaft, the second gear is engaged with the first gear, the second gear is provided in a transmission box and is detachably connected thereto, and the second gear is eccentrically provided with two second transmission shafts; the third gear, the fourth gear and the fifth gear are all provided above the transmission box, the third gear is externally engaged with the fourth gear, the fourth gear is internally engaged with the fifth gear, and the third gear and the fourth gear are respectively sleeved on the second transmission shafts; The stirring module comprises a tank body and hollow paddles and solid paddles respectively mounted at the ends of the two second transmission shafts, the hollow paddles and the solid paddles are all provided in the tank body for stirring the materials in the tank body.

[0005] Furthermore, symmetrical grooves are provided on both sides of the tank body, and sliders that cooperate with the grooves are provided on both sides of the tank body.

[0006] Furthermore, a flipping mechanism is provided at the end of the chute. The flipping mechanism includes symmetrically arranged flipping slots connected to the end of the chute. A rotating shaft is connected below each of the two flipping slots. The rotating shaft is divided into an active rotating shaft and a passive rotating shaft. The active rotating shaft is driven by a worm gear. After the tank enters the flipping slot along the chute, the flipping mechanism is activated to flip the tank outward.

[0007] Furthermore, the bottom of the tilting groove is connected to a vertical plate that rotates synchronously with it, and a mounting plate is provided at a symmetrical position of the base. One end of the active rotating shaft passes through the mounting plate and the vertical plate in sequence, and the other end of the rotating shaft is sleeved with a turbine. The turbine meshes with a worm gear, and the worm gear is connected to the handwheel rocker key.

[0008] Furthermore, the base is also equipped with a lifting mechanism, which includes a linear guide rail bracket mounted on the base, and a linear guide rail extending vertically on the linear guide rail bracket. A hydraulic cylinder is vertically mounted on the base, and the telescopic end of the hydraulic cylinder is connected to the frame. Driven by the hydraulic cylinder, the frame and the tank move up and down.

[0009] Furthermore, the connection between the second drive shaft and the transmission box is equipped with a sealing frame and a deep groove ball bearing from top to bottom.

[0010] Furthermore, the first drive shaft is interference-fitted into the mounting base, and deep groove ball bearings are respectively installed above and below the first drive shaft to fix its position.

[0011] Furthermore, the transmission box is interference-fitted into the mounting base, and a tapered roller bearing is mounted on top of it to fix its position.

[0012] Furthermore, a deep groove ball bearing is installed at the connection between the rotating shaft and the vertical plate.

[0013] Furthermore, several support columns are connected below the transmission box, and a tank is connected below the support columns. The tank is mounted on the frame.

[0014] Furthermore, the tank has a double-layer structure, with an inlet and an outlet on the outer wall, and a temperature sensor and a pressure sensor on the lower part of the inner wall.

[0015] Furthermore, the upper surface of the can is provided with a folding handle.

[0016] Furthermore, an operation control box is also provided on the base.

[0017] Compared with the prior art, the present invention has the following advantages: (1) The present invention adopts a vertical design and is small in size, with a small footprint, making it suitable for experimental kneading machines; it can also be used for pre-experimentation before kneading large equivalent propellants; at the same time, it is equipped with a high-speed rotating motor and feedback technology, which enables the kneading machine to run continuously at high speed, greatly improving the mixing efficiency, safety and reliability.

[0018] (2) The volume of the kneading machine of the present invention is 0.1L-1L (preferably 0.5L), and the motor rotation range is 70-580 rpm. Compared with the traditional kneading machine, it has a high rotation speed and a small volume of kneaded drug, which can more effectively predict the safety and reliability of the kneaded drug before making a large equivalent of kneaded drug. Attached Figure Description

[0019] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a perspective view of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a partial cross-sectional view of the present invention; Figure 4 This is a partial cross-sectional view of the present invention; Figure 5 This is a partial cross-sectional view of the present invention; Figure 6 This is a partial schematic diagram of the flipping mechanism of the present invention; Explanation of reference numerals in the attached figures: 1. Base; 2. Frame; 3. Mounting base; 4. Motor; 5. Torque sensor; 6. First drive shaft; 7. First gear; 8. Second gear; 9. Third gear; 10. Fourth gear; 11. Fifth gear; 12. Transmission box; 13. Second drive shaft; 14. Tank; 15. Hollow propeller; 16. Solid propeller; 17. Slide groove; 18. Slider; 19. Tilting groove; 20. Drive shaft; 21. Vertical plate; 22. Mounting plate; 23. Turbine; 24. Worm gear; 25. Handwheel rocker arm; 26. Linear guide rail bracket; 27. Hydraulic cylinder; 28. Sealing frame; 29. ​​Deep groove ball bearing; 30. Tapered roller bearing; 31. Support column; 32. Inlet; 33. Outlet; 34. Temperature sensor; 35. Pressure sensor; 36. Folding handle; 37. Operation control box. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] A small-sized vertical kneader for solid propellants, wherein the propellant loading volume of the vertical kneader is 0.1L-1L (preferably 0.5L), such as... Figures 1-6 As shown, it includes a base 1, a frame 2 mounted on the base 1, a mounting base 3 mounted on the frame 2, and a power module, a transmission module, and a stirring module mounted on the mounting base 3; The power module includes a motor 4 and a torque sensor 5. The lower end of the motor 4 is fixed to the frame 2 via the torque sensor 5 connected to it by a key. The torque sensor 5 is connected to a first drive shaft 6 via a key. The first drive shaft 6 transmits power to the transmission module. The speed range of the motor 4 in the power module is 70-580 rpm.

[0027] The transmission module includes a first gear 7, a second gear 8, a third gear 9, a fourth gear 10, and a fifth gear 11. The first gear 7 is mounted on the first transmission shaft 6, and the second gear 8 meshes with the first gear 7. The second gear 8 is housed within the transmission housing 12 and detachably connected to it, specifically, the second gear 8 is connected to the transmission housing 12 via hexagonal socket bolts. Two second transmission shafts 13 are eccentrically mounted on the second gear 8. The third gear 9, fourth gear 10, and fifth gear 11 are all positioned above the transmission housing 12. The third gear 9 meshes externally with the fourth gear 10, and the fourth gear 10 meshes internally with the fifth gear 11. The third gear 9 and fourth gear 10 are respectively fitted onto the second transmission shafts 13. The third gear 9 and fourth gear 10 rotate on their own axes while revolving around the mixing center, resulting in a high relative rotational speed. Hollow paddles 15 and solid paddles 16 are connected below the third and fourth gears, driving the two paddles to rotate continuously at high speed in different directions. Solid paddle 16 and hollow paddle 15 are fitted to the bottom of the tank 14. The transmission efficiency of this invention is far greater than that of a traditional vertical kneader. Through the design of the transmission module, the transmission efficiency of the kneader of this invention is far greater than that of a traditional kneader.

[0028] Specifically, the uppermost part of the second drive shaft 13 is threaded, and a round nut and washer are used to fix the position of the gears on the upper part of the second drive shaft 13 so that the third gear 9 and the fourth gear 10 will not move up and down when rotating together with the second drive shaft 13.

[0029] The mixing module includes a tank 14 and hollow paddles 15 and solid paddles 16 respectively installed at the ends of two second drive shafts 13. Both the hollow paddles and solid paddles 16 are disposed inside the tank 14 for mixing the materials inside the tank 14. The hollow paddles 15 and solid paddles 16 are symmetrically distributed, which avoids the formation of vortices and improves mixing efficiency.

[0030] Both sides of the tank body 14 are symmetrically provided with sliding grooves 17, and both sides of the tank body 14 are provided with sliders 18 that cooperate with the sliding grooves 17.

[0031] A flipping mechanism is provided at the end of the chute 17. The flipping mechanism includes symmetrically arranged flipping grooves 19 connected to the end of the chute 17. A rotating shaft is connected below each of the two flipping grooves 19, which is divided into an active rotating shaft 20 and a passive rotating shaft. The active rotating shaft 20 is driven by a worm gear 24 and a turbine 23. After the can 14 enters the flipping groove 19 along the chute 17, the flipping mechanism is activated to flip the can 14 outward. To prevent the flipping mechanism from flipping during the kneading process, a through vertical plate 21 and a mounting plate 22 are provided on one side of the passive rotating shaft.

[0032] The bottom of the flip groove 19 is connected to a vertical plate 21 that rotates synchronously with it. A mounting plate 22 is provided at a symmetrical position of the base 1. One end of the active rotating shaft 20 passes through the mounting plate 22 and the vertical plate 21 in sequence. The other end of the rotating shaft is sleeved with a turbine 23. The turbine 23 is engaged with a worm gear 24. The worm gear 24 is key-connected to the handwheel rocker arm 25.

[0033] To prevent the flipping mechanism from flipping during the kneading process, a mounting hole (not shown in the figure) is provided on one side of the passive rotating shaft, which passes through the vertical plate 21 and the mounting plate 22. A pin is installed in the mounting hole, and the pin is removed when the flipping operation is required.

[0034] A lifting mechanism is also provided on the base 1. The lifting mechanism includes a linear guide rail bracket 26 mounted on the base 1, with vertically extending linear guide rails on the bracket 26. A hydraulic cylinder 27 is vertically mounted on the base 1, and the telescopic end of the hydraulic cylinder 27 is connected to the frame 2. Driven by the hydraulic cylinder 27, the frame 2 and the tank 14 move up and down. The lifting mechanism makes it easier to load medicine into the tank 14.

[0035] The connection between the second drive shaft 13 and the transmission box 12 is fitted with a sealing frame 28 and a deep groove ball bearing 29 from top to bottom. The first drive shaft 6 is interference-fitted into the mounting base 3, and deep groove ball bearings 29 are installed above and below the first drive shaft 6 to fix its position. The transmission box 12 is interference-fitted into the mounting base 3, and a tapered roller bearing 30 is installed on top to fix its position. A deep groove ball bearing 29 is installed at the connection between the rotating shaft and the vertical plate 21.

[0036] A support column 31 is connected below the transmission box 12, and a tank 14 is connected below the support column 31. The tank 14 is mounted on the frame 2.

[0037] The tank 14 has a double-layer structure, with an inlet 32 ​​and an outlet 33 on its outer wall. During the mixing process, water is introduced into the jacket to cool the mixing tank 14. A temperature sensor 34 and a pressure sensor 35 are located on the lower part of the inner wall. The detected temperature can be fed back to the control center, which then controls the torque sensor 5 to control the rotational speed. The propellant temperature and rotational speed can be monitored in real time, and the rotational speed can be adjusted accordingly.

[0038] The upper surface of the tank body 14 is provided with a folding handle 36. This allows the operator to easily move the tank body 14 horizontally by pulling it along the slide 17. An operation control box 37 is also provided on the base 1.

[0039] Working principle: When the material is put into the tank 14, the motor 4 is started by clicking the control box. The motor 4 drives the first drive shaft 6 to rotate and simultaneously drives the first gear 7 to rotate in the same direction. The first gear 7 drives the second gear 8 to rotate in the opposite direction. The second gear 8 drives the transmission box 12 to rotate. The transmission box 12 drives the two second drive shafts 13 to rotate. Since the second drive shaft 13 is located at the eccentric position of the transmission box 12, the second drive shaft 13 rotates around the midpoint of the transmission box 12, causing the third gear 9 to mesh with the fourth gear 10 and the fourth gear 10 to mesh with the fifth gear 11. At the same time, the hollow paddle 15 and the solid paddle 16 below the second drive shaft 13 are rotating on their own axis and revolving around the sun. The material is stirred at high speed by the revolution and rotation of the hollow paddle 15 and the solid paddle 16.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A small size vertical kneader for solid propellant kneading safety test, characterized by: The base (1), the rack (2) installed on the base (1), the mounting seat (3) arranged on the rack (2) and the power module, the transmission module and the stirring module arranged on the mounting seat (3); The motor (4) and the torque sensor (5) are arranged in the power module, the lower end of the motor (4) is fixed on the rack (2) through the torque sensor (5) connected with the motor (4) by a key, the torque sensor (5) is connected with the first transmission shaft (6) by a key, and the first transmission shaft (6) transmits power to the transmission module; The first gear (7), the second gear (8), the third gear (9), the fourth gear (10) and the fifth gear (11) are arranged in the transmission module, the first gear (7) is arranged on the first transmission shaft (6), the second gear (8) is engaged with the first gear (7), the second gear (8) is arranged in the transmission box (12) and is detachably connected with the transmission box (12), the second gear (8) is eccentrically provided with two second transmission shafts (13); the third gear (9), the fourth gear (10) and the fifth gear (11) are arranged above the transmission box (12), the third gear (9) is engaged with the fourth gear (10) outside, the fourth gear (10) is engaged with the fifth gear (11) inside, and the third gear (9) and the fourth gear (10) are respectively sleeved with the second transmission shaft (13). The stirring module comprises a tank body (14) and hollow paddles (15) and solid paddles (16) respectively installed at the ends of the two second transmission shafts (13), and the hollow paddles and the solid paddles (16) are arranged in the tank body (14) and used for stirring materials in the tank body (14).

2. The small-sized vertical kneader for solid propellant kneading safety test according to claim 1, characterized in that: Both sides of the tank body (14) are symmetrically provided with sliding grooves (17), and both sides of the tank body (14) are provided with sliding blocks (18) matched with the sliding grooves (17).

3. The small size vertical kneader for solid propellant kneading safety test according to claim 2, characterized in that: The end of the sliding groove (17) is provided with a turnover mechanism, the turnover mechanism comprises turnover grooves (19) symmetrically arranged and connected with the end of the sliding groove (17), the lower ends of the two turnover grooves (19) are connected with rotating shafts, which are divided into driving rotating shafts (20) and driven rotating shafts, wherein the driving rotating shaft (20) is driven by a turbine (23) and a worm (24), the tank body (14) enters the turnover groove (19) along the sliding groove (17), and the turnover mechanism is started to make the tank body (14) turn outward after the tank body (14) enters the turnover groove (19); further, the rotating shafts are connected with the vertical plates (21), and the deep groove ball bearings (29) are arranged at the connection positions of the rotating shafts and the vertical plates (21).

4. The small size vertical kneader for solid propellant kneading safety test according to claim 3, characterized in that: The bottom of the turnover groove (19) is connected with a vertical plate (21) rotating synchronously with the turnover groove (19), the base (1) is provided with mounting plates (22) at symmetrical positions, one end of the driving rotating shaft (20) sequentially penetrates the mounting plates (22) and the vertical plates (21), the other end of the rotating shaft is sleeved with the turbine (23), the turbine (23) is engaged with the worm (24), and the worm (24) is connected with the hand wheel rocker (25) by a key.

5. The small size vertical kneader for solid propellant kneading safety test according to claim 1, characterized in that: The base (1) is further provided with a lifting mechanism, the lifting mechanism comprises a linear guide rail support (26) provided on the base (1), the linear guide rail support (26) is provided with a linear guide rail extending upwards and downwards, a hydraulic rod oil cylinder (27) is vertically arranged on the base (1), the telescopic end of the hydraulic rod oil cylinder (27) is connected with the rack (2), and the rack (2) moves upwards and downwards along with the tank body (14) under the drive of the hydraulic rod oil cylinder (27).

6. The small size vertical kneader for solid propellant kneading safety test according to claim 1, characterized in that: The connecting part of the second transmission shaft (13) and the transmission box (12) is sequentially provided with a sealing framework (28) and a deep groove ball bearing (29) from top to bottom; the first transmission shaft (6) is installed in the mounting seat (3) in interference fit, and the deep groove ball bearings (29) are installed above and below the first transmission shaft (6) respectively for fixing the position of the first transmission shaft (6).

7. The small size vertical kneader for solid propellant kneading safety test according to claim 1, characterized in that: The transmission box (12) is installed in the mounting seat (3) in interference fit, and a tapered roller bearing (30) is installed above the transmission box (12) for fixing the position of the transmission box (12).

8. The small size vertical kneader for solid propellant kneading safety test according to claim 1, characterized in that: The transmission box (12) is connected with a supporting column (31) below, the supporting column (31) is connected with the tank body (14) below, and the tank body (14) is installed on the rack (2); further, the tank body (14) is a double-layer structure, the outer wall of the tank body (14) is provided with a water inlet (32) and a water outlet (33), and the inner wall is provided with a temperature sensor (34) and a pressure sensor (35) below.

9. The small size vertical kneader for solid propellant kneading safety test according to claim 1, characterized in that: The upper surface of the tank body (14) is provided with a folding handle (36); the base (1) is further provided with an operation control box (37).

10. The small size vertical kneader for solid propellant kneading safety test according to claim 3, characterized in that: The vertical plate (21) and the mounting plate (22) on the side of the passive rotating shaft are provided with through mounting holes for mounting pins.

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