A cement mixer for municipal construction

Abstract

The present invention provides a cement mixer for municipal construction, comprising a mixing kettle body, wherein the mixing kettle body is provided with a top cover at the upper end, and a counter-directional mixing assembly is provided in the inner cavity thereof, wherein the counter-directional mixing assembly comprises an upper mixing shaft and a lower mixing shaft arranged up and down, and a rotating shell is provided between the upper mixing shaft and the lower mixing shaft, and the rotating shell is a hollow cylindrical structure, wherein the lower end of the upper mixing shaft passes through the upper end of the rotating shell and is connected with an upper bevel gear, and the upper end of the lower mixing shaft passes through the lower end of the rotating shell and is connected with a lower bevel gear, and at least two side bevel gears are evenly distributed between the upper bevel gear and the lower bevel gear in the circumferential direction, and a side mixing shaft is provided in the middle of the outer side of the side bevel gear. The advantages are: the rotation direction of the upper mixing shaft is opposite to that of the lower mixing shaft, and when the rotation speeds of the two are the same, the side mixing shaft rotates by itself, and when there is a difference in the rotation speeds of the two, the side mixing shaft rotates around the central axis of the mixing kettle body while rotating by itself, thereby improving the mixing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of cement mixing, in particular to a cement mixer for municipal construction. Background Art

[0002] In municipal construction, cement mixers are indispensable equipment. However, the mixing efficiency of current mixers is average, which can easily lead to insufficient mixing of cement and affect the use effect of cement. Summary of the invention

[0003] In order to solve the above problems, the present invention discloses a cement mixer for municipal construction, which effectively improves the mixing efficiency and ensures the use effect of cement.

[0004] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0005] A cement mixer for municipal construction, characterized in that it includes a mixing kettle body, the mixing kettle body is a cylindrical structure with an opening at the upper end, a top cover matching the same is installed on the upper end, a counter-directional mixing component is arranged in the inner cavity, the counter-directional mixing component includes an upper mixing shaft and a lower mixing shaft arranged up and down, and the upper mixing shaft and the lower mixing shaft have opposite rotation directions, the central axis of the upper mixing shaft, the central axis of the lower mixing shaft and the central axis of the mixing kettle body are collinear, the upper end of the upper mixing shaft is matched and connected with an upper motor arranged in the middle of the top surface of the top cover, and upper mixing paddles are evenly distributed on the upper mixing shaft along the axial direction, the lower end of the lower mixing shaft is matched and connected with a lower motor arranged in the middle of the bottom surface of the mixing kettle body, and lower mixing paddles are evenly distributed on the lower mixing shaft along the axial direction, A rotating shell is provided between the upper stirring shaft and the lower stirring shaft, and the rotating shell is a hollow cylindrical structure, wherein the axis thereof is colinear with the central axis of the stirring kettle body, the lower end of the upper stirring shaft passes through the middle part of the upper end of the rotating shell and is connected with an upper bevel gear, the upper end of the lower stirring shaft passes through the middle part of the lower end of the rotating shell and is connected with a lower bevel gear, the upper bevel gear and the lower bevel gear are symmetrically arranged up and down, and at least two side bevel gears are evenly distributed along the circumferential direction between the upper bevel gear and the lower bevel gear, the side bevel gear is meshed with the upper bevel gear and the lower bevel gear, a side stirring shaft is provided at the middle part of the outer side along the axial direction, the outer end of the side stirring shaft passes through the side wall of the rotating shell, and side stirring paddles are evenly distributed along the axial direction on the outer section of the side stirring shaft.

[0006] Furthermore, a feed inlet and a discharge port are respectively provided at the upper and lower ends of the side wall of the stirring tank body.

[0007] Furthermore, an annular base is provided at the lower end of the stirring kettle body.

[0008] Furthermore, a limiting protrusion is provided at the outer end of the side stirring shaft, and the limiting protrusion is a hemispherical structure and abuts against the inner wall of the stirring kettle body.

[0009] Compared with the prior art, the beneficial effect of the present invention lies in: adopting a counter-directional stirring component, in which the upper stirring shaft rotates in opposite directions to the lower stirring shaft. When the rotation speeds of the two are the same, the side stirring shaft rotates on its own, and when there is a difference in the rotation speeds of the two, the side stirring shaft rotates around the central axis of the stirring tank body while rotating on its own, thereby greatly improving the degree of material disorder in the stirring tank body and improving the stirring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The present invention is a structural schematic diagram of a cement mixer for municipal construction.

[0011] List of reference numerals:

[0012] 1-mixing kettle body, 2-top cover, 3-upper stirring shaft, 4-lower stirring shaft, 5-upper motor, 6-upper stirring paddle, 7-lower motor, 8-lower stirring paddle, 9-rotating shell, 10-upper bevel gear, 11-lower bevel gear, 12-side bevel gear, 13-side stirring shaft, 14-side stirring paddle, 15-feeding port, 16-discharging port, 17-ring base, 18-limiting protrusion. DETAILED DESCRIPTION

[0013] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0014] As shown in the figure, a cement mixer for municipal construction includes a mixing kettle body 1, which is a cylindrical structure with an opening at the upper end, and a top cover 2 matched therewith is installed on its upper end, and a counter-directional stirring component is provided in the inner cavity, and the counter-directional stirring component includes an upper stirring shaft 3 and a lower stirring shaft 4 arranged up and down, and the upper stirring shaft 3 and the lower stirring shaft 4 rotate in opposite directions, and the central axis of the upper stirring shaft 3, the central axis of the lower stirring shaft 4 and the central axis of the mixing kettle body 1 are collinear, the upper end of the upper stirring shaft 3 is connected with an upper motor 5 arranged in the middle of the top surface of the top cover 2, and upper stirring paddles 6 are evenly distributed on the upper stirring shaft 3 along the axial direction, and the lower end of the lower stirring shaft 4 is connected with a lower motor 7 arranged in the middle of the bottom surface of the mixing kettle body 1, and lower stirring paddles 8 are evenly distributed on the lower stirring shaft 4 along the axial direction. 4 is provided with a rotating shell 9, the rotating shell 9 is a hollow cylindrical structure, wherein the axis thereof is colinear with the central axis of the stirring kettle body 1, the lower end of the upper stirring shaft 3 passes through the middle of the upper end of the rotating shell 9, and is connected with an upper bevel gear 10, the upper end of the lower stirring shaft 4 passes through the middle of the lower end of the rotating shell 9, and is connected with a lower bevel gear 11, the upper bevel gear 10 and the lower bevel gear 11 are symmetrically arranged up and down, and at least two side bevel gears 12 are evenly distributed between the upper bevel gear 10 and the lower bevel gear 11 along the circumferential direction, the side bevel gear 12 is meshed with the upper bevel gear 10 and the lower bevel gear 11, and a side stirring shaft 13 is provided at the middle part of the outer side along the axial direction, the outer end of the side stirring shaft 13 passes through the side wall of the rotating shell 9, and the outer section of the side stirring shaft 13 is evenly distributed with side stirring paddles 14 along the axial direction.

[0015] In this embodiment, a feed inlet 15 and a discharge outlet 16 are respectively provided at the upper and lower ends of the side wall of the stirring tank body 1 .

[0016] In this embodiment, an annular base 17 is provided at the lower end of the stirring tank body 1 .

[0017] In this embodiment, a limiting protrusion 18 is provided at the outer end of the side stirring shaft 13 . The limiting protrusion 18 is a hemispherical structure and abuts against the inner wall of the stirring tank body 1 .

[0018] The present invention adopts a counter-directional stirring component, in which the upper stirring shaft 3 and the lower stirring shaft 4 rotate in opposite directions, so that the upper and lower materials in the stirring kettle body 1 are stirred in opposite directions. When the rotation speed of the upper stirring shaft 3 is the same as that of the lower stirring shaft 4, the side stirring shaft 13 rotates on its own. When there is a difference in the rotation speed of the upper stirring shaft 3 and the lower stirring shaft 4, the side stirring shaft 13 rotates around the central axis of the stirring kettle body 1 while rotating on its own, thereby greatly improving the degree of material disorder in the stirring kettle body 1 and improving the stirring efficiency.

[0019] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A cement mixer for municipal construction, characterized in that: The invention comprises a stirring kettle body (1), wherein the stirring kettle body (1) is a cylindrical structure with an opening at the upper end, and a top cover (2) matching the stirring kettle body is mounted on the upper end thereof, and a counter-rotating stirring assembly is arranged in the inner cavity, wherein the counter-rotating stirring assembly comprises an upper stirring shaft (3) and a lower stirring shaft (4) arranged up and down, and the upper stirring shaft (3) and the lower stirring shaft (4) rotate in opposite directions, and the central axis of the upper stirring shaft (3), the central axis of the lower stirring shaft (4) and the central axis of the stirring kettle body (1) are collinear, and the upper stirring shaft (3) The upper end of the stirring shaft (4) is connected to an upper motor (5) arranged in the middle of the top surface of the top cover (2); upper stirring paddles (6) are evenly distributed on the upper stirring shaft (3) along the axis direction; the lower end of the lower stirring shaft (4) is connected to a lower motor (7) arranged in the middle of the bottom surface of the stirring kettle body (1); lower stirring paddles (8) are evenly distributed on the lower stirring shaft (4) along the axis direction; a rotating shell (9) is provided between the upper stirring shaft (3) and the lower stirring shaft (4); the rotating shell (9) is a hollow cylindrical structure, wherein the axis and the stirring The central axis of the mixing kettle body (1) is collinear, the lower end of the upper stirring shaft (3) passes through the middle of the upper end of the rotating shell (9) and is connected to the upper bevel gear (10), the upper end of the lower stirring shaft (4) passes through the middle of the lower end of the rotating shell (9) and is connected to the lower bevel gear (11), the upper bevel gear (10) and the lower bevel gear (11) are symmetrically arranged in a vertical direction, and at least two side bevel gears (12) are evenly distributed between the upper bevel gear (10) and the lower bevel gear (11) in a circumferential direction, The side bevel gear (12) is meshed with the upper bevel gear (10) and the lower bevel gear (11), and a side stirring shaft (13) is provided at the middle of the outer side thereof along the axial direction, the outer end of the side stirring shaft (13) passes through the side wall of the rotating shell (9), and side stirring paddles (14) are evenly distributed on the outer section of the side stirring shaft (13) along the axial direction; the upper and lower ends of the side wall of the stirring kettle body (1) are respectively provided with a feed port (15) and a discharge port (16); and the lower end of the stirring kettle body (1) is provided with an annular base (17).

2. A cement mixer for municipal construction according to claim 1, characterized in that: The outer end of the side stirring shaft (13) is provided with a limiting protrusion (18), the limiting protrusion (18) is a hemispherical structure, and abuts against the inner wall of the stirring kettle body (1).

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