A high-efficiency transmission device of a mortar mixer and the mortar mixer

Abstract

A high-efficiency transmission device for a mortar mixer and the mortar mixer itself are disclosed, relating to the technical field of mixer devices. The device includes a base, with a first motor mounted in the center of the base. The first motor is connected to a first reducer. The output shaft of the first reducer passes through the base and is rotatably mounted to a main shaft. The main shaft consists of an inner shaft and an outer shaft, with the inner shaft being longer than the outer shaft. The inner and outer shafts are rotatably fitted together. The lower surface of the base is fixedly connected to one end of the outer shaft via a cross-shaped half-coupling. The other end of the outer shaft is welded to the outer wall of a transmission assembly. One end of the inner shaft is fixedly connected to the output shaft of the first reducer, and the other end of the inner shaft passes through the inner wall of the transmission assembly and is connected to a connecting shaft via a flange coupling. This invention controls the mixing blades through the transmission assembly via the first motor, solving the problem of high resistance experienced by the mixing shaft during operation and easy bending after prolonged use, thus improving the reliability of the device.

Description

Technical Field

[0001] This invention relates to the field of mixer equipment technology, and in particular to a high-efficiency transmission device for a mortar mixer and the mortar mixer itself. Background Technology

[0002] The mortar is a general-purpose waterproof mortar made by mixing modified polymer emulsion and cement powder on site. It has excellent waterproof effect, is easy to apply, has high coating strength and excellent adhesion. It can be applied to masonry, mortar, concrete and gypsum board substrates; mortar plastering and tile bonding can be done directly on the waterproof membrane.

[0003] Currently available mortar mixers consist of a mixing drum, a mixing shaft, and a transmission device. The mixing shaft is horizontally positioned inside the trough-shaped mixing drum, and several sets of mixing blades are mounted on the radial arm of the shaft. As the shaft rotates, the mixture in the mixing drum is forcibly stirred by the mixing blades. This results in a relatively slow mixing speed, and the mixing blades within the mixing drum have blind spots, preventing the cement slurry from being fully and evenly mixed. Furthermore, the mixing shaft experiences significant resistance during operation, making it prone to bending after prolonged use. Summary of the Invention

[0004] This invention proposes a high-efficiency transmission device for a mortar mixer and the mortar mixer itself.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency transmission device for a mortar mixer includes a base, a first motor mounted in the middle of the base, the first motor being connected to a first reducer, the output shaft of the first reducer passing through the base and rotatably mounted together with a main shaft, the main shaft consisting of an inner shaft and an outer shaft, the inner shaft being longer than the outer shaft, the inner shaft and the outer shaft being rotatably fitted together, the lower surface of the base being fixedly connected to one end of the outer shaft via a cross half-coupling, the other end of the outer shaft being welded to the outer wall of the transmission assembly, one end of the inner shaft being fixedly connected to the output shaft of the first reducer, and the other end of the inner shaft passing through the inner wall of the transmission assembly and connected to a connecting shaft via a flange coupling.

[0007] A further preferred embodiment of the present invention: the transmission assembly includes a sleeve, two planar bearings and a pressure bearing. The pressure bearing is disposed inside the sleeve, and planar bearings are disposed on both the upper and lower surfaces of the pressure bearing. The top surface of the sleeve is welded to the outer shaft of the main shaft, and the inner diameters of the pressure bearing and the planar bearing are fixedly installed together with the inner shaft of the main shaft.

[0008] A further preferred embodiment of the present invention is that three stirring blades are evenly arranged on the connecting shaft, and the stirring blades are arranged in a Y-shape.

[0009] A mortar mixer includes a mixing drum installed below ground level. Guide rails are provided on both sides of the top of the mixing drum. Four wheels are mounted on the base. A rotating shaft is provided between the front and rear wheels. A first transmission gear is fixedly mounted on one of the rotating shafts. The first transmission gear meshes with a second transmission gear. The second transmission gear is connected to a second reducer. The second reducer is connected to a second motor. Both the second reducer and the second motor are mounted on the base.

[0010] A further preferred embodiment of the present invention is that the wheel is mounted on the guide rail, and the wheel and the guide rail cooperate with each other.

[0011] A further preferred embodiment of the present invention is that a through groove is provided on the base, and the second transmission gear passes through the through groove and meshes with the first transmission gear.

[0012] The present invention has the following advantages:

[0013] 1. This invention uses a first motor to control the stirring blades through a transmission assembly, which solves the problem that the stirring shaft experiences high resistance during operation and is prone to bending after prolonged use, thus improving the reliability of the device.

[0014] 2. By setting a cross half-coupling, a flange coupling, and a transmission assembly on the stirring shaft, the present invention improves the buffering and vibration reduction performance and enhances the dynamic performance of the stirring shaft. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0016] Figure 2 This is a bottom view of the base structure of the present invention;

[0017] Figure 3 This is an enlarged structural diagram of part A of the present invention;

[0018] In the diagram: 1. Base, 2. First reducer, 3. First motor, 4. Cross half coupling, 5. Flange coupling, 6. Agitator blade, 7. Sleeve, 8. Pressure bearing, 9. Surface bearing, 10. Transmission assembly, 11. Wheel, 12. Second motor, 13. Second transmission gear, 14. First transmission gear, 15. Shaft, 16. Outer shaft, 17. Inner shaft. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] according to Figure 1-3As shown, a high-efficiency transmission device for a mortar mixer includes a base 1. A first motor 3 is installed in the middle of the base 1. The first motor 3 is connected to a first reducer 2. The output shaft of the first reducer 2 passes through the base 1 and is rotatably mounted together with the main shaft. The main shaft consists of an inner shaft 17 and an outer shaft 16. The length of the inner shaft 17 is greater than the length of the outer shaft 16. The inner shaft 17 and the outer shaft 16 are rotatably fitted together. The lower surface of the base 1 is fixedly connected to one end of the outer shaft 16 through a cross half-coupling 4. The other end of the outer shaft 16 is welded to the outer wall of the transmission assembly 10. One end of the inner shaft 17 is fixedly connected to the output shaft of the first reducer 2. The other end of the inner shaft 17 passes through the inner wall of the transmission assembly 10 and is connected to the connecting shaft through a flange coupling 5.

[0021] The transmission assembly 10 includes a sleeve 7, two plane bearings 9 and a pressure bearing 8. The pressure bearing 8 is installed inside the sleeve 7, and the plane bearings 9 are installed on both the upper and lower surfaces of the pressure bearing 8. The top surface of the sleeve 7 is welded to the outer shaft 16 of the main shaft, and the inner diameters of the pressure bearings 8 and the plane bearings 9 are fixedly installed to the inner shaft 17 of the main shaft.

[0022] Three stirring blades 6 are evenly arranged on the connecting shaft, and the stirring blades 6 are arranged in a Y-shape.

[0023] A mortar mixer includes a mixing drum installed below ground level. Guide rails are provided on both sides of the top of the mixing drum. Four wheels 11 are installed on a base 1. A rotating shaft 15 is provided between the front and rear wheels 11. A first transmission gear 14 is fixedly installed on one of the rotating shafts 15. The first transmission gear 14 meshes with a second transmission gear 13. The second transmission gear 13 is connected to a second reducer. The second reducer is connected to a second motor 12. Both the second reducer and the second motor 12 are installed on the base 1.

[0024] The wheel 11 is mounted on the guide rail, and the wheel 11 and the guide rail cooperate with each other.

[0025] The base 1 is provided with a through slot, through which the second transmission gear 13 passes and meshes with the first transmission gear 14.

[0026] Working principle: When the device is in use, the raw materials to be mixed are put into the mixing tank, and the first motor is controlled to rotate. The first motor drives the main shaft to rotate through the first reducer. The main shaft drives the mixing transmission assembly to rotate the mixing blades. After a period of time, the second motor is controlled to work. The second motor drives the second transmission gear to rotate through the second reducer. The second transmission gear cooperates with the first transmission gear to make the wheels move on the guide rail, so that the cement slurry can be fully and evenly mixed.

[0027] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency transmission device for a mortar mixer, characterized in that: The system includes a base (1), a first motor (3) is installed in the middle of the base (1), the first motor (3) is connected to the first reducer (2), the output shaft of the first reducer (2) passes through the base (1) and is rotatably mounted together with the main shaft, the main shaft is composed of an inner shaft (17) and an outer shaft (16), the length of the inner shaft (17) is greater than the length of the outer shaft (16), the inner shaft (17) and the outer shaft (16) are rotatably fitted together, the lower surface of the base (1) is fixedly connected to one end of the outer shaft (16) through a cross half coupling (4), the other end of the outer shaft (16) is welded to the outer wall of the transmission assembly (10), one end of the inner shaft (17) is fixedly connected to the output shaft of the first reducer (2), and the other end of the inner shaft (17) passes through the inner wall of the transmission assembly (10) and is connected to the connecting shaft through a flange coupling (5).

2. The high-efficiency transmission device for a mortar mixer according to claim 1, characterized in that: The transmission assembly (10) includes a sleeve (7), two plane bearings (9) and a pressure bearing (8). The pressure bearing (8) is installed inside the sleeve (7). The upper and lower surfaces of the pressure bearing (8) are provided with plane bearings (9). The top surface of the sleeve (7) is welded to the outer shaft (16) of the main shaft. The inner diameters of the pressure bearing (8) and the plane bearings (9) are fixedly installed together with the inner shaft (17) of the main shaft.

3. The high-efficiency transmission device for a mortar mixer according to claim 1, characterized in that: Three stirring blades (6) are evenly arranged on the connecting shaft, and the stirring blades (6) are arranged in a Y-shape.

4. A mortar mixer, characterized in that: The system includes a mixing tank installed below ground level. Guide rails are provided on both sides of the top of the mixing tank. Four wheels (11) are installed on the base (1). A rotating shaft (15) is provided between the front and rear wheels (11). A first transmission gear (14) is fixedly installed on one of the rotating shafts (15). The first transmission gear (14) meshes with a second transmission gear (13). The second transmission gear (13) is connected to a second reducer. The second reducer is connected to a second motor (12). Both the second reducer and the second motor (12) are installed on the base (1).

5. A mortar mixer according to claim 4, characterized in that: The wheel (11) is mounted on the guide rail, and the wheel (11) and the guide rail cooperate with each other.

6. A mortar mixer according to claim 1, characterized in that: A through slot is provided on the base (1), and the second transmission gear (13) passes through the through slot and meshes with the first transmission gear (14).

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