Double-shaft stirrer

Abstract

The utility model relates to the technical field of stirring equipment. The double-shaft stirring machine comprises a stirring machine base, a stirring box is arranged on the stirring machine base, a driving motor is arranged on the stirring machine base, a double-shaft gear box is arranged on an output shaft of the driving motor, and a first stirring shaft and a second stirring shaft are rotationally connected to the double-shaft gear box. A plurality of mounting bases are uniformly arranged on the first stirring shaft and the second stirring shaft in the length direction of the first stirring shaft and the second stirring shaft, stirring blades are arranged on the mounting bases and are connected with the mounting bases through connecting assemblies, and adjusting assemblies for adjusting the inclination angles of the stirring blades are arranged on the stirring base. The stirring device has the advantages that by arranging the adjusting assembly, the plurality of racks are pushed to synchronously move in the moving process of the adjusting seat, and the gears are driven to rotate in the moving process of the plurality of racks, so that the rotating angles of the stirring blades on the first stirring shaft and the second stirring shaft can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing equipment, in particular to a double-shaft mixer. Background Art

[0002] Hollow bricks are widely used in the construction industry, and their advantages lie in excellent performance in aspects such as sound insulation, heat preservation, and fire prevention. However, there are still some problems in the current production process of hollow bricks. One of them is that there are some defects in the double-shaft mixers used in the production process. A double-shaft mixer is a commonly used mixing equipment, and its main purpose is to mix and stir different materials. In the production of hollow bricks, the double-shaft mixer is mainly used to mix materials such as lime, cement, and gypsum together to form a mixture, and then pour the mixture into a mold for shaping. However, the existing double-shaft mixers have some defects, which affect their mixing efficiency and service life.

[0003] First of all, the blade angles on the mixing shafts in the existing double-shaft mixers have a very important influence on the mixing efficiency. At the same time, the inclination angles of the blades should be consistent. If the inclination angle is too large, the material advancing speed is too fast, and the mixing is uneven; if the inclination angle is too small, the mud advancing speed is slow, the output is reduced, and at the same time, the working load of the double-shaft mixer will be increased. However, in the existing double-shaft mixers, the blade angles are not easy to adjust, and they are prone to wear during use. After the blades are severely worn, the equipment output will be reduced, the power consumption will be increased, and the mixing effect is poor. In addition, since the blades are welded and fixed on the mixing shafts, once the blades are worn or need to be replaced, the entire mixing shaft needs to be replaced, which greatly increases the maintenance cost and use cost. Summary of the Utility Model

[0004] In order to overcome the shortcomings of the existing technology, this application provides a double-shaft mixer.

[0005] A double-shaft mixer provided by this application adopts the following technical solutions:

[0006] A double-shaft mixer, comprising a mixer base, a mixing tank is arranged on the mixer base, and a driving motor is arranged on the mixing base. A double-shaft gearbox is arranged on the output shaft of the driving motor. A first stirring shaft and a second stirring shaft are rotatably connected to the output end of the double-shaft gearbox. The first stirring shaft and the second stirring shaft are both rotatably arranged on the mixing tank. The first stirring shaft and the second stirring shaft are hollow, and a plurality of mounting bases are evenly arranged along the length direction of the first stirring shaft and the second stirring shaft. Stirring blades are arranged on a plurality of the mounting bases. The stirring blades are connected to the mounting bases through a connecting component. An adjusting component for adjusting the inclination angle of the stirring blades is arranged at one end of the mixer base away from the driving motor. The adjusting component comprises an annular seat, a plurality of gears and a plurality of racks. A rotating shaft is rotatably arranged on the mounting base. The top of the rotating shaft is connected to the stirring blade. The plurality of gears correspond to the plurality of rotating shafts one by one, and the gears are coaxially connected to the rotating shafts. The plurality of racks are evenly arranged along the circumferential direction of the annular seat, and the racks are meshed with the gears. A support seat is slidably arranged at one end of the mixer base. Two adjusting seats are horizontally arranged on the support seat. One of the adjusting seats is rotatably arranged inside the first stirring shaft, and the other adjusting seat is rotatably arranged inside the second stirring shaft. An annular groove is formed in the adjusting seat. The annular seat is rotatably arranged in the annular groove.

[0007] By adopting the above technical solution, when it is necessary to adjust the rotation angle of the stirring blades on the first stirring shaft and the second stirring shaft, the staff slides the support seat, so that the adjusting seat moves along the length direction of the first stirring shaft. During the movement of the adjusting seat, a plurality of racks will be pushed to move synchronously. During the movement of the plurality of racks, the gears will be driven to rotate, so as to be able to adjust the rotation angle of the stirring blades on the first stirring shaft and the second stirring shaft, so as to make the stirring blades adapt to the current working state.

[0008] Optionally, the connecting component comprises a connecting base and a connecting top seat. The connecting base is arranged at the top of the rotating shaft, and the connecting top seat is arranged at the bottom of the stirring blade. A plurality of connecting bolts are evenly arranged on the connecting base. The connecting bolts are used to connect and fix the connecting base and the connecting top seat.

[0009] By adopting the above technical solution, the connecting component can detachably connect the stirring blade and the rotating shaft, so as to facilitate the replacement of the stirring blade in the later stage.

[0010] Optionally, a sealing groove is formed inside the mounting base. A sealing ring is sleeved on the rotating shaft. The sealing ring is located in the sealing groove. A plug for plugging the sealing groove is further arranged on the mounting base. The plug is threadedly connected to the groove wall of the sealing groove.

[0011] By adopting the above technical solution, the sealing ring can prevent the raw materials inside the mixing tank from entering the inside of the first stirring shaft through the gap between the rotating shaft and the first stirring shaft, thus causing the mechanical structure inside the first stirring shaft to operate smoothly.

[0012] Optionally, the connecting top seat is provided with insertion rods, the stirring blades are provided with insertion holes along their own length directions, the insertion rods are inserted into the insertion holes, and a plurality of fixing bolts for the insertion rods are uniformly arranged on the stirring blades.

[0013] By adopting the above technical solution, the fixing bolts can detachably connect the stirring blades to the insertion rods, so that when the stirring blades are damaged, the parts for replacing the stirring blades can be reduced, thereby reducing the production cost.

[0014] Optionally, two adjusting hydraulic cylinders are horizontally arranged on the support seat, the two adjusting seats correspond to the two adjusting hydraulic cylinders one by one, and the adjusting seats are arranged on the piston rods of the adjusting hydraulic cylinders.

[0015] By adopting the above technical solution, the staff can respectively control the lengths of the piston rods of the two adjusting hydraulic cylinders, thereby respectively controlling the positions of the adjusting seats located in the first stirring shaft and the second stirring shaft, and further respectively controlling the rotation angles of the stirring blades on the first stirring shaft and the second stirring shaft.

[0016] Optionally, wear-resistant steel bars are arranged around the periphery of the stirring blades.

[0017] By adopting the above technical solution, the wear-resistant steel bars can improve the wear resistance around the periphery of the stirring blades, thereby extending the service life of the stirring blades and reducing the production cost.

[0018] Optionally, a discharge pipe is arranged at the bottom of the mixing tank, a blocking plate is arranged at the bottom of the discharge pipe, the blocking plate is slidably arranged on the mixer base, and a switch hydraulic cylinder is arranged on the mixing base, and the piston rod of the switch hydraulic cylinder is connected to the blocking plate.

[0019] By adopting the above technical solution, when the switch hydraulic cylinder is started, the piston rod of the switch hydraulic cylinder will push the blocking plate to move the blocking plate to one end away from the discharge pipe, so that the raw materials inside the mixing tank are discharged from the discharge pipe.

[0020] Optionally, a splash-proof plate is arranged at the top of the mixing tank.

[0021] By adopting the above technical solution, the splash-proof plate can, to a certain extent, prevent the raw materials inside the mixing tank from splashing to the outside of the mixing tank and polluting the surrounding environment.

[0022] The utility model has the following advantages:

[0023] 1. By setting the adjustment component, during the movement of the adjustment seat, it will push multiple racks to move synchronously. During the movement of the multiple racks, it will drive the gears to rotate, thereby being able to adjust the rotation angles of the stirring blades on the first stirring shaft and the second stirring shaft;

[0024] 2. By setting the connection component, the connection component can detachably connect the stirring blade to the rotating shaft, thereby facilitating the replacement of the stirring blade in the later stage;

[0025] 3. By setting a sealing ring inside the installation base, the sealing ring can prevent the raw materials inside the stirring tank from entering the inside of the first stirring shaft through the gap between the rotating shaft and the first stirring shaft, which may cause the mechanical structure inside the first stirring shaft to operate smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the structural schematic diagram of the whole utility model;

[0027] Figure 2 is the installation structural schematic diagram of the plugging plate of the utility model;

[0028] Figure 3 is the installation structural schematic diagram of the adjustment seat of the utility model;

[0029] Figure 4 is the installation structural schematic diagram of the connection component of the utility model;

[0030] Figure 5 is the installation structural schematic diagram of the plug and the sealing ring of the utility model;

[0031] In the figure: 1, mixer base; 11, mixing tank; 12, drive motor; 13, double-shaft gearbox; 131, first stirring shaft; 132, second stirring shaft; 14, installation base; 141, rotating shaft; 15, stirring blade; 16, support seat; 17, splash guard; 2, adjustment component; 21, annular seat; 22, gear; 23, rack; 24, adjustment seat; 25, annular groove; 3, connection component; 31, connection base; 32, connection top seat; 33, connection bolt; 4, sealing groove; 41, sealing ring; 42, plug; 43, insertion rod; 44, insertion hole; 45, fixing bolt; 5, adjustment hydraulic cylinder; 6, wear-resistant steel strip; 7, discharge pipe; 71, plugging plate; 72, switch hydraulic cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following further describes the present utility model with reference to the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0033] As Figures 1 to 5As shown in the figure, a double-shaft mixer includes a mixer base 1. A mixing tank 11 is installed on the mixer base 1, and a driving motor 12 is installed on the mixing base. A double-shaft gearbox 13 is installed on the output shaft of the driving motor 12. A first stirring shaft 131 and a second stirring shaft 132 are rotatably connected to the output end of the double-shaft gearbox 13. The first stirring shaft 131 and the second stirring shaft 132 are both rotatably installed on the mixing tank 11. The first stirring shaft 131 and the second stirring shaft 132 are hollow, and a plurality of mounting bases 14 are evenly installed along the length direction of the first stirring shaft 131. A plurality of mounting bases 14 are also evenly installed along the length direction of the second stirring shaft 132. Stirring blades 15 are installed on the plurality of mounting bases 14. The stirring blades 15 are connected to the mounting bases 14 through a connecting component 3. An adjusting component 2 for adjusting the inclination angle of the stirring blades 15 is installed at one end of the mixer base 1 away from the driving motor 12. The adjusting component 2 includes an annular seat 21, a plurality of gears 22, and a plurality of racks 23. A rotating shaft 141 is rotatably installed on the mounting base 14. The top of the rotating shaft 141 is connected to the stirring blade 15. The plurality of gears 22 correspond to the plurality of rotating shafts 141 one by one, and the gears 22 are coaxially connected to the rotating shafts 141. The plurality of racks 23 are evenly arranged along the circumference of the annular seat 21, and the plurality of racks 23 are fixedly connected to the annular seat 21. The length direction of the rack 23 is the same as the length direction of the first stirring shaft 131, and the rack 23 meshes with the gear 22. A support seat 16 is slidably installed at one end of the mixer base 1. Two adjusting seats 24 are horizontally installed on the support seat 16. One adjusting seat 24 rotatably installs inside the first stirring shaft 131, and the other adjusting seat 24 rotatably installs inside the second rotating shaft 141. An annular groove 25 is formed on the adjusting seat 24, and the annular seat 21 is rotatably installed in the annular groove 25; when the double-shaft mixer stirs the material, start the driving motor 12. During the rotation of the driving motor 12, the double-shaft gearbox 13 will be driven to rotate. During the rotation of the double-shaft gearbox 13, the first stirring shaft 131 and the second stirring shaft 132 will be driven to rotate simultaneously. During the rotation of the first stirring shaft 131 and the second stirring shaft 132, the material will be stirred evenly;When it is necessary to adjust the rotation angles of the stirring blades 15 on the first stirring shaft 131 and the second stirring shaft 132, the staff slides the support base 16, so that the adjustment base 24 moves along the length direction of the first stirring shaft 131. During the movement of the adjustment base 24, it will push multiple racks 23 to move synchronously. During the movement of the multiple racks 23, it will drive the gear 22 to rotate, so as to be able to adjust the rotation angles of the stirring blades 15 on the first stirring shaft 131 and the second stirring shaft 132. When the staff adjusts the stirring blades 15 on the first stirring shaft 131 and the second stirring shaft 132 to appropriate angles, the current position of the support base 16 can be fixed. At this time, when the first stirring shaft 131 rotates, it will drive the rack 23 located inside the first stirring shaft 131 to rotate synchronously. When the rack 23 rotates, it will drive the annular seat 21 to rotate in the annular groove 25, so as not to drive the adjustment base 24 to rotate synchronously.;

[0034] As Figures 1 to 5 shown, the connecting assembly 3 includes a connecting base 31 and a connecting top seat 32. The connecting base 31 is installed on the top of the rotating shaft 141, and the connecting top seat 32 is installed at the bottom of the stirring blade 15. A plurality of connecting bolts 33 are evenly installed on the connecting base 31. The connecting bolts 33 are used to connect and fix the connecting base 31 and the connecting top seat 32. In this embodiment, the connecting base 31 and the connecting top seat 32 are cylindrical. In other embodiments, the connecting base 31 and the connecting top seat 32 can also be rectangular or polygonal. The connecting assembly 3 can detachably connect the stirring blade 15 and the rotating shaft 141, so as to facilitate the replacement of the stirring blade 15 in the later stage.

[0035] As Figures 1 to 5 shown, a sealing groove 4 is formed inside the mounting base 14. A sealing ring 41 is sleeved on the rotating shaft 141. The sealing ring 41 is located in the sealing groove 4. A plug 42 for plugging the sealing groove 4 is also installed on the mounting base 14. The plug 42 is threadedly connected to the groove wall of the sealing groove 4. The sealing ring 41 can prevent the raw materials inside the mixing tank 11 from entering the inside of the first stirring shaft 131 from the gap between the rotating shaft 141 and the first stirring shaft 131, resulting in the unsmooth operation of the mechanical structure inside the first stirring shaft 131. Similarly, the sealing ring 41 can prevent the raw materials inside the mixing tank 11 from entering the inside of the second stirring shaft 132 from the gap between the rotating shaft 141 and the second stirring shaft 132, resulting in the unsmooth operation of the mechanical structure inside the second stirring shaft 132.

[0036] As Figures 1 to 5As shown, a plug rod 43 is installed on the connecting top seat 32. A jack 44 is formed along the length direction of the stirring blade 15, and the plug rod 43 is inserted into the jack 44. A plurality of fixing bolts 45 for the plug rod 43 are evenly installed on the stirring blade 15. The fixing bolts 45 can detachably connect the stirring blade 15 to the plug rod 43. Thus, when the stirring blade 15 is damaged, the part for replacing the stirring blade 15 can be reduced, thereby reducing the production cost.

[0037] As Figures 1 to 5 shown, two adjusting hydraulic cylinders 5 are horizontally installed on the support seat 16. Two adjusting seats 24 correspond to the two adjusting hydraulic cylinders 5 one by one, and the adjusting seats 24 are installed on the piston rods of the adjusting hydraulic cylinders 5. The staff can respectively control the lengths of the piston rods of the two adjusting hydraulic cylinders 5, so as to respectively control the positions of the adjusting seats 24 located in the first stirring shaft 131 and the second stirring shaft 132, and further respectively control the rotation angles of the stirring blades 15 on the first stirring shaft 131 and the second stirring shaft 132. Compared with the method of moving the position of the support seat 16 to further adjust the position of the adjusting seat 24, the position of the adjusting seat 24 can be adjusted more conveniently and quickly through the adjusting hydraulic cylinder 5, and the operation is more convenient and fast.

[0038] As Figures 1 to 5 shown, wear-resistant steel bars 6 are welded to the peripheries of the stirring blades 15. The material of the wear-resistant steel bars 6 can be high manganese steel, medium and low alloy wear-resistant steel, chromium molybdenum silicon manganese steel, cavitation-resistant steel, wear-resistant corrosion steel, and special wear-resistant steel, so as to improve the wear resistance of the peripheries of the stirring blades 15, thereby prolonging the service life of the stirring blades 15 and reducing the production cost.

[0039] As Figures 1 to 5 shown, a discharge pipe 7 is installed at the bottom of the mixing tank 11. A sealing plate 71 is installed at the bottom of the discharge pipe 7. The sealing plate 71 is slidably installed on the mixer base 1. A switch hydraulic cylinder 72 is installed on the mixing base. The piston rod of the switch hydraulic cylinder 72 is connected to the sealing plate 71. When discharging is required, the switch hydraulic cylinder 72 is started, and the piston rod of the switch hydraulic cylinder 72 will push the sealing plate 71 to move the sealing plate 71 to one end away from the discharge pipe 7, so that the raw materials inside the mixing tank 11 are discharged from the discharge pipe 7.

[0040] As Figures 1 to 5 shown, a splash-proof plate 17 is installed at the top of the mixing tank 11. When the first stirring shaft 131 and the second stirring shaft 132 stir the raw materials, the splash-proof plate 17 can, to a certain extent, prevent the raw materials inside the mixing tank 11 from splashing to the outside of the mixing tank 11 and polluting the surrounding environment.

[0041] The implementation principle of this embodiment is as follows: When the double-shaft mixer stirs the materials, the driving motor 12 is started. During the rotation of the driving motor 12, the double-shaft gearbox 13 will rotate. During the rotation of the double-shaft gearbox 13, the first stirring shaft 131 and the second stirring shaft 132 will be driven to rotate simultaneously. During the rotation of the first stirring shaft 131 and the second stirring shaft 132, the materials will be stirred evenly. When it is necessary to adjust the rotation angle of the stirring blades 15 on the first stirring shaft 131 and the second stirring shaft 132, the staff slides the support seat 16, so that the adjustment seat 24 moves along the length direction of the first stirring shaft 131. During the movement of the adjustment seat 24, a plurality of racks 23 will be pushed to move synchronously. During the movement of the plurality of racks 23, the gear 22 will be driven to rotate, so that the rotation angle of the stirring blades 15 on the first stirring shaft 131 and the second stirring shaft 132 can be adjusted.

[0042] The above is only the preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present invention. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope of this technical solution.

Claims

1. A twin-shaft mixer, characterized in that: The invention comprises a mixer base (1), wherein a mixing box (11) is arranged on the mixer base (1), and a driving motor (12) is arranged on the mixer base, a double-shaft gear box (13) is arranged on the output shaft of the driving motor (12), a first mixing shaft (131) and a second mixing shaft (132) are rotatably connected to the output end of the double-shaft gear box (13), the first mixing shaft (131) and the second mixing shaft (132) are both rotatably arranged on the mixing box (11), and the first mixing shaft (131) The first stirring shaft (131) and the second stirring shaft (132) are hollowly arranged, and the first stirring shaft (131) and the second stirring shaft (132) are evenly arranged with a plurality of mounting bases (14) along their length direction, and the plurality of mounting bases (14) are each provided with a stirring blade (15), and the stirring blade (15) is connected to the mounting base (14) through a connecting component (3), and an adjustment component for adjusting the inclination angle of the stirring blade (15) is provided on the end of the stirring machine base (1) away from the driving motor (12). (2), the adjustment component (2) comprises an annular seat (21), a plurality of gears (22) and a plurality of racks (23), a rotating shaft (141) is rotatably arranged on the mounting base (14), the top of the rotating shaft (141) is connected to the stirring blade (15), the plurality of gears (22) correspond to the plurality of rotating shafts (141) one by one, and the gears (22) are coaxially connected to the rotating shaft (141), the plurality of racks (23) are evenly arranged along the circumference of the annular seat (21), and the racks (23) meshes with the gear (22), a support seat (16) is slidably arranged at one end of the mixer seat (1), two adjustment seats (24) are horizontally arranged on the support seat (16), one of the adjustment seats (24) is rotatably arranged inside the first stirring shaft (131), and the other adjustment seat (24) is rotatably arranged inside the second stirring shaft (132), and an annular groove (25) is opened on the adjustment seat (24), and the annular seat (21) is rotatably arranged in the annular groove (25).

2. A twin-shaft mixer according to claim 1, characterized in that: The connection assembly (3) comprises a connection base (31) and a connection top seat (32); the connection base (31) is arranged at the top of the rotating shaft (141); the connection top seat (32) is arranged at the bottom of the stirring blade (15); a plurality of connection bolts (33) are evenly arranged on the connection base (31); the connection bolts (33) are used to connect and fix the connection base (31) and the connection top seat (32).

3. A twin-shaft mixer according to claim 2, characterized in that: A sealing groove (4) is provided inside the mounting base (14), a sealing ring (41) is sleeved on the rotating shaft (141), the sealing ring (41) is located in the sealing groove (4), and a plug (42) for sealing the sealing groove (4) is also provided on the mounting base (14), the plug (42) being threadedly connected to the groove wall of the sealing groove (4).

4. A twin-shaft mixer according to claim 2, characterized in that: The connecting top seat (32) is provided with an insertion rod (43), the stirring blade (15) is provided with an insertion hole (44) along its length direction, the insertion rod (43) is inserted into the insertion hole (44), and the stirring blade (15) is evenly provided with a plurality of fixing bolts (45) for the insertion rod (43).

5. A twin-shaft mixer according to claim 1, characterized in that: Two adjusting hydraulic cylinders (5) are horizontally arranged on the support seat (16), the two adjusting seats (24) correspond to the two adjusting hydraulic cylinders (5) one by one, and the adjusting seats (24) are arranged on the piston rods of the adjusting hydraulic cylinders (5).

6. A twin-shaft mixer according to claim 1, characterized in that: The periphery of the stirring blade (15) is provided with wear-resistant steel strips (6).

7. A twin-shaft mixer according to claim 1, characterized in that: A discharge pipe (7) is provided at the bottom of the mixing box (11), a sealing plate (71) is provided at the bottom of the discharge pipe (7), the sealing plate (71) is slidably arranged on the mixer base (1), a switch hydraulic cylinder (72) is provided on the mixer base, and a piston rod of the switch hydraulic cylinder (72) is connected to the sealing plate (71).

8. A twin-shaft mixer according to claim 1, characterized in that: A splash plate (17) is provided on the top of the mixing box (11).

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