阅读说明：本技术 一种提升搅拌均匀性的再生混凝土搅拌机 (Promote recycled concrete mixer of stirring homogeneity ) 是由 方勤宪 王勃 朱曹峰 于 2020-06-17 设计创作，主要内容包括：本发明涉及再生混凝土生产装置的技术领域,尤其是涉及一种提升搅拌均匀性的再生混凝土搅拌机,包括搅拌筒、搅拌轴以及多组与搅拌轴侧壁连接的搅拌桨,搅拌筒上方设置有支撑板,搅拌轴与上端和下端分别与支撑板和搅拌筒底壁转动连接,每组搅拌桨均包括多个水平设置的搅拌杆以及多组与搅拌杆固定连接的桨叶,并且所述搅拌杆端部与搅拌轴转动连接；搅拌筒上设置有第一驱动机构；搅拌筒内还设置有用于翻动混凝土的翻料机构。第一驱动机构带动搅拌杆和桨叶旋转,能够将沉积在搅拌筒底部的混凝土集料向上翻动；翻料机构能够对混凝土进行翻动,使混凝土混合的更加均匀,并能够有效提升搅拌机的工作效率。(The invention relates to the technical field of recycled concrete production devices, in particular to a recycled concrete mixer capable of improving mixing uniformity, which comprises a mixing drum, a mixing shaft and a plurality of groups of mixing paddles connected with the side wall of the mixing shaft, wherein a support plate is arranged above the mixing drum, the mixing shaft is respectively and rotatably connected with the support plate and the bottom wall of the mixing drum at the upper end and the lower end, each group of mixing paddles comprises a plurality of horizontally arranged mixing rods and a plurality of groups of blades fixedly connected with the mixing rods, and the end parts of the mixing rods are rotatably connected with the mixing shaft; a first driving mechanism is arranged on the mixing drum; and a stirring mechanism for stirring the concrete is also arranged in the stirring cylinder. The first driving mechanism drives the stirring rod and the paddle to rotate, and can turn over the concrete aggregate deposited at the bottom of the stirring cylinder upwards; the stirring mechanism can stir the concrete, so that the concrete is mixed more uniformly, and the working efficiency of the stirrer can be effectively improved.)

1. The utility model provides a promote recycled concrete mixer of stirring homogeneity, includes churn (1), vertical setting at inside (mixing) shaft (2) of churn (1) and stirring rake (4) of being connected with (mixing) shaft (2) lateral wall, its characterized in that: a supporting plate (16) is arranged above the stirring cylinder (1), the upper end of the stirring shaft (2) is rotatably connected with the supporting plate (16), the lower end of the stirring shaft (2) is rotatably connected with the bottom wall of the stirring cylinder (1), a plurality of groups of stirring paddles (4) are arranged, and the groups of stirring paddles (4) are uniformly arranged along the length direction of the stirring shaft (2); each group of stirring paddles (4) comprises a plurality of stirring rods (41) which are horizontally arranged and a plurality of groups of blades (42) which are fixedly connected with the stirring rods (41), the stirring rods (41) are uniformly distributed along the circumferential direction of the stirring shaft (2), the end parts of the stirring rods (41) are rotatably connected with the stirring shaft (2), the blades (42) are uniformly arranged along the length direction of the stirring rods (41), and each group of blades (42) comprises a plurality of blades which are circumferentially arranged along the stirring rods (41); the stirring cylinder (1) is provided with a first driving mechanism (3) for driving the stirring rod (41) and the stirring shaft (2) to operate;

the concrete stirring device is characterized in that a stirring mechanism (5) for stirring concrete is further arranged in the stirring cylinder (1), and a second driving mechanism (6) for driving the stirring mechanism (5) to operate is arranged on the outer side of the stirring cylinder (1).

2. The recycled concrete mixer of claim 1, wherein the mixing uniformity is improved by: the stirring shaft (2) is arranged in a tubular shape, and the lower end of the stirring shaft (2) is rotationally connected with the bottom wall of the stirring cylinder (1); a fixing rod (14) is coaxially arranged in the stirring shaft (2), the upper end and the lower end of the fixing rod (14) are respectively and fixedly connected with the supporting plate (16) and the stirring drum (1), the upper end and the lower end of the side wall of the fixing rod (14) are rotatably connected with the stirring shaft (2), and the end part of the stirring rod (41) extends into the stirring shaft (2);

the first driving mechanism (3) comprises a first motor (31) fixedly connected with a supporting plate (16), a first bevel gear (34) coaxially and fixedly connected with one end, located inside the stirring shaft (2), of the stirring barrel (1), and a second bevel gear (35) coaxially and fixedly connected with the fixing rod (14), wherein the first bevel gear (34) is meshed with the second bevel gear (35); the coaxial fixedly connected with first band pulley (32) in (mixing) shaft (2) lateral wall upper end, first motor (31) output end fixedly connected with second band pulley (33), first band pulley (32) and second band pulley (33) pass through the hold-in range and connect.

3. The recycled concrete mixer of claim 2, wherein the mixing uniformity is improved by: the width of the paddle (42) is gradually increased from one end of the paddle (42) close to the stirring rod (41) to one end of the paddle (42) far away from the stirring rod (41).

4. The recycled concrete mixer of claim 3, wherein the mixing uniformity is improved by: the paddle (42) is arranged in an arc-shaped plate, and the bending direction of the paddle (42) is opposite to the rotating direction of the stirring rod (41).

5. The recycled concrete mixer of claim 1, wherein the mixing uniformity is improved by: the stirring mechanism (5) comprises a transmission shaft (51) arranged in the stirring cylinder (1) and a stirring paddle (52) fixedly connected with the transmission shaft (51); one end of the transmission shaft (51) is rotatably connected with the side wall of the mixing drum (1), the other end of the transmission shaft is inclined downwards and points to the bottom wall of the mixing drum (1), a plurality of stirring paddles (52) are arranged, and the stirring paddles (52) are uniformly distributed along the circumferential direction of the transmission shaft (51);

the second driving mechanism (6) is set as a second motor, the second motor is fixedly connected with the outer side wall of the mixing drum (1), and the output end of the second motor is coaxially and fixedly connected with the transmission shaft (51);

the stirring mechanism (5) is provided with a plurality of groups, and the stirring mechanisms (5) are circumferentially and uniformly distributed along the stirring cylinder (1).

6. The recycled concrete mixer of claim 5, wherein the mixing uniformity is improved by: one end of the stirring paddle (52) far away from the transmission shaft (51) is fixedly connected with a stirring plate (53), when the stirring paddle (52) rotates to the position under the transmission shaft (51), one side, facing the side wall of the stirring drum (1), of the stirring plate (53) is abutted to the inner wall of the stirring drum (1), and one end, facing the bottom wall of the stirring drum (1), of the stirring plate (53) is abutted to the bottom wall of the stirring drum (1).

7. The recycled concrete mixer of claim 5, wherein the mixing uniformity is improved by: the stirring cylinder (1) comprises a mixing cylinder (11) and a rotating cylinder (12) arranged above the mixing cylinder (11), the upper end and the lower end of the rotating cylinder (12) are respectively rotatably connected with the lower end of a supporting plate (16) and the upper end of the mixing cylinder (11), and the supporting plate (16) is fixedly connected with the upper end of the rotating cylinder (12); the stirring device is characterized in that the stirring mechanism (5) and the second driving mechanism (6) are connected with the rotary drum (12), and a third driving mechanism (13) used for driving the rotary drum (12) to rotate is arranged on the outer side of the stirring drum (1).

8. The recycled concrete mixer of claim 7, wherein the mixing uniformity is improved by: the third driving mechanism (13) comprises a plurality of third motors (131) fixedly connected with the outer side walls of the mixing barrels (11), driving gears (132) fixedly connected with the output ends of the third motors (131) and gear rings (133) fixedly connected with the side walls of the rotating barrels (12), and the gear rings (133) are arranged along the circumferential direction of the rotating barrels (12) and meshed with the driving gears (132); the third motors (131) are uniformly distributed along the circumferential direction of the mixing barrel (11).

Technical Field

The invention relates to the technical field of recycled concrete production devices, in particular to a recycled concrete mixer capable of improving mixing uniformity.

Background

The regenerated concrete is prepared by crushing, cleaning and grading waste concrete blocks, mixing the crushed, cleaned and graded waste concrete blocks with a grading agent according to a certain proportion, partially or completely replacing natural aggregates (mainly coarse aggregates) such as sand stones and the like, and adding cement, water and the like. The recycled concrete can be combined into aggregates in the following cases: all aggregates are regenerated aggregates; the coarse aggregate is regenerated aggregate, and the fine aggregate is natural sand; the coarse aggregate is natural gravel or cobble, and the fine aggregate is regenerated aggregate; the reclaimed aggregate replaces part of the coarse aggregate or the fine aggregate.

When the recycled concrete is used, the recycled concrete needs to be fully stirred, so that concrete aggregate, cement, water and the like are uniformly mixed, and the recycled concrete has good performance.

At present, the invention patent with the publication number of CN107379255B specifically discloses a rapid and uniform concrete mixer, which comprises a fixed box, wherein the bottom of the inner wall of the fixed box is fixedly connected with a mixing box, the top of the inner wall of the fixed box is fixedly connected with an extrusion device, the bottom of the extrusion device is fixedly connected with a movable plate through a connecting block, and the top of the movable plate is fixedly connected with a first motor. An output shaft of the first motor is fixedly connected with a first belt pulley through a coupler, the surface of the first belt pulley is connected with a second belt pulley through belt transmission, a transmission shaft penetrates through the middle part of the second belt pulley, and the bottom end of the transmission shaft is fixedly connected with a rotating device; the bottom of the rotating device is fixedly connected with a first rotating shaft and a second rotating shaft respectively, the bottom end of the first rotating shaft is fixedly connected with a stirring shaft, and the bottom end of the second rotating shaft is fixedly connected with a vibrating rod; the bottom of (mixing) shaft and vibrations stick all runs through the agitator tank and extends to the inner wall of agitator tank, and the fixed surface of (mixing) shaft is connected with the puddler.

When the mixer works, the first motor drives the mixing shaft to rotate, the mixing rod can mix concrete in the mixing box, the vibration rod can vibrate to enable the concrete to vibrate, and therefore the concrete can be mixed conveniently.

The above scheme has the following defects: concrete aggregate is because weight is great, therefore, when concrete mixing, concrete aggregate has the trend of depositing to the churn lower part, and the puddler can only stir the concrete in the horizontal direction, can not stir the concrete in the vertical direction, therefore partly concrete aggregate deposits the bottom at the churn easily to influence concrete mixing's homogeneity.

Disclosure of Invention

Aiming at the defects in the prior art, one of the purposes of the invention is to provide a recycled concrete mixer for improving the mixing uniformity, which can turn over the concrete and make the concrete mixed more uniformly.

The above object of the present invention is achieved by the following technical solutions:

a recycled concrete mixer capable of improving mixing uniformity comprises a mixing drum, a mixing shaft vertically arranged in the mixing drum and mixing paddles connected with the side wall of the mixing shaft, wherein a support plate is arranged above the mixing drum, the mixing shaft is rotatably connected with the upper end of the mixing shaft and the support plate, the lower end of the mixing shaft is rotatably connected with the bottom wall of the mixing drum, a plurality of groups of mixing paddles are arranged, and the plurality of groups of mixing paddles are uniformly arranged along the length direction of the mixing shaft; each group of the stirring paddles comprises a plurality of horizontally arranged stirring rods and a plurality of groups of blades fixedly connected with the stirring rods, the stirring rods are uniformly distributed along the circumferential direction of the stirring shaft, the end parts of the stirring rods are rotationally connected with the stirring shaft, the plurality of groups of the blades are uniformly arranged along the length direction of the stirring rods, and each group of the blades comprises a plurality of blades arranged along the circumferential direction of the stirring rods; the stirring drum is provided with a first driving mechanism for driving the stirring rod and the stirring shaft to operate;

the stirring device is characterized in that a stirring mechanism for stirring concrete is further arranged in the stirring cylinder, and a second driving mechanism for driving the stirring mechanism to operate is arranged outside the stirring cylinder.

Through adopting above-mentioned technical scheme, first actuating mechanism drives (mixing) shaft and puddler rotation, and the puddler drives the paddle and rotates, and when the paddle was rotatory, can upwards turn the concrete aggregate of deposit in the agitator bottom to concrete homogeneous mixing. The speed of the mixer to concrete mixing can be realized by the aid of the multiple groups of stirring paddles and the multiple groups of blades, and uniformity of concrete mixing can be improved.

The second driving mechanism can drive the material turning mechanism to turn the concrete, so that the concrete is mixed more uniformly, and the working efficiency of the mixer can be effectively improved.

The present invention in a preferred example may be further configured to: the stirring shaft is arranged in a tubular shape, and the lower end of the stirring shaft is rotationally connected with the bottom wall of the stirring barrel; a fixed rod is coaxially arranged in the stirring shaft, the upper end and the lower end of the fixed rod are respectively and fixedly connected with the supporting plate and the stirring barrel, the upper end and the lower end of the side wall of the fixed rod are rotatably connected with the stirring shaft, and the end part of the stirring rod extends into the stirring shaft;

the first driving mechanism comprises a first motor fixedly connected with the supporting plate, a first bevel gear coaxially and fixedly connected with one end of the stirring cylinder positioned in the stirring shaft, and a second bevel gear coaxially and fixedly connected with the fixing rod, and the first bevel gear is meshed with the second bevel gear; the coaxial fixedly connected with first band pulley of (mixing) shaft lateral wall upper end, first motor output end fixedly connected with second band pulley, first band pulley and second band pulley pass through the hold-in range and connect.

By adopting the technical scheme, the first motor is started, the stirring shaft is driven to rotate by the first motor, and the stirring rod can be driven to rotate along the axis of the stirring shaft by the stirring shaft because the stirring rod is rotationally connected with the stirring shaft, so that the concrete is stirred by the stirring rod; simultaneously, first bevel gear and second bevel gear mesh mutually to first bevel gear and second bevel gear relative rotation make first bevel gear drive the puddler and carry out the rotation, make the paddle can turn the concrete, make the concrete mix ground more even.

The present invention in a preferred example may be further configured to: the width of the paddle is gradually increased from one end of the paddle close to the stirring rod to one end of the paddle far away from the stirring rod.

Through adopting above-mentioned technical scheme, the paddle width crescent can promote the area of contact of paddle and concrete, can be convenient for the paddle to turn the concrete to can promote the efficiency of turning to the concrete.

The present invention in a preferred example may be further configured to: the paddle is arranged in an arc-shaped plate, and the bending direction of the paddle is opposite to the rotating direction of the stirring rod.

Through adopting above-mentioned technical scheme, the paddle can be shoveled the concrete, and the paddle that can be convenient for more drives the concrete and turns, promotes the work efficiency of paddle.

The present invention in a preferred example may be further configured to: the stirring mechanism comprises a transmission shaft arranged in the stirring cylinder and a stirring paddle fixedly connected with the transmission shaft; one end of the transmission shaft is rotatably connected with the side wall of the mixing drum, the other end of the transmission shaft inclines downwards and points to the bottom wall of the mixing drum, a plurality of turning paddles are arranged, and the turning paddles are uniformly distributed along the circumferential direction of the transmission shaft;

the second driving mechanism is set as a second motor, the second motor is fixedly connected with the outer side wall of the mixing drum, and the output end of the second motor is coaxially and fixedly connected with the transmission shaft;

the stirring mechanism is provided with a plurality of groups, and the stirring mechanisms are uniformly distributed along the circumferential direction of the stirring drum.

Through adopting above-mentioned technical scheme, the second motor can drive the transmission shaft and rotate, and when the transmission shaft rotated, the stirring rake can turn the concrete to because the transmission shaft slope sets up, consequently, when the stirring rake turned the concrete, the stirring rake can turn the concrete that is located the churn bottom to churn upper portion central point and put, thereby can make the concrete that is located the churn bottom mix with the concrete that is located the churn upper portion. Meanwhile, the concrete at the bottom of the mixing drum and close to the side wall of the mixing drum can be mixed with the concrete at the central position of the mixing drum. The uniformity of concrete mixing is effectively improved, and the working efficiency of the mixer can be effectively improved.

The present invention in a preferred example may be further configured to: one end of the stirring paddle, which is far away from the transmission shaft, is fixedly connected with a stirring plate, when the stirring paddle rotates to the position under the transmission shaft, one side, facing the side wall of the stirring drum, of the stirring plate is abutted against the inner wall of the stirring drum, and one end, facing the bottom wall of the stirring drum, of the stirring plate is abutted against the bottom wall of the stirring drum.

Through adopting above-mentioned technical scheme, when the stirring rake turned the concrete, the stirring board can be turned the concrete that is located near the churn lateral wall lower extreme position to make the stirring rake can fully turn the concrete, promote the homogeneity that the concrete mixes.

The present invention in a preferred example may be further configured to: the mixing drum comprises a mixing drum and a rotating drum arranged in the mixing drum, the upper end and the lower end of the rotating drum are respectively rotatably connected with the lower end of a supporting plate and the upper end of the mixing drum, and the supporting plate is fixedly connected with the upper end of the rotating drum; the stirring mechanism and the second driving mechanism are connected with the rotary drum, and a third driving mechanism used for driving the rotary drum to rotate is arranged on the outer side of the stirring drum.

Through adopting above-mentioned technical scheme, third actuating mechanism can drive the rotation of a rotatory section of thick bamboo in mixing barrel upper end to it moves to drive multiunit stirring mechanism to follow a rotatory section of thick bamboo, makes stirring mechanism can fully stir the concrete, promotes the homogeneity that the concrete mixes, and can promote the work efficiency of mixer effectively.

The present invention in a preferred example may be further configured to: the third driving mechanism comprises a plurality of third motors fixedly connected with the outer side wall of the mixing barrel, a driving gear fixedly connected with the output end of the third motors and gear rings fixedly connected with the side wall of the rotary barrel, and the gear rings are arranged along the circumferential direction of the rotary barrel and are meshed with the driving gear;

and the third motors are uniformly distributed along the circumferential direction of the mixing barrel.

Through adopting above-mentioned technical scheme, the third motor drives drive gear and ring gear looks meshing, can drive rotatory section of thick bamboo and rotate, and a plurality of third motors operate simultaneously, can promote the rotatory stability of rotatory section of thick bamboo simultaneously.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the first driving mechanism drives the stirring shaft and the stirring rod to rotate, the stirring rod drives the paddle to rotate, and when the paddle rotates, concrete aggregate deposited at the bottom of the stirring cylinder can be upwards turned so as to be uniformly mixed; the second driving mechanism can drive the stirring mechanism to stir the concrete, so that the concrete is mixed more uniformly, and the working efficiency of the mixer can be effectively improved;

2. the third actuating mechanism can drive a rotating cylinder to rotate on the mixing cylinder, so that the multiple groups of material turning mechanisms are driven to move along with the rotating cylinder, the material turning mechanisms can fully turn the concrete, the uniformity of concrete mixing is improved, and the working efficiency of the mixer can be effectively improved.

Drawings

FIG. 1 is a schematic view of the internal structure of a blender;

FIG. 2 is a schematic view of the external structure of the blender.

In the figure, 1, a mixing drum; 11. a mixing barrel; 12. a rotary drum; 13. a third drive mechanism; 131. a third motor; 132. a drive gear; 133. a ring gear; 14. fixing the rod; 15. a base; 16. a support plate; 17. a connecting rod; 2. a stirring shaft; 3. a first drive mechanism; 31. a first motor; 32. a first pulley; 33. a second pulley; 34. a first bevel gear; 35. a second bevel gear; 4. a stirring paddle; 41. a stirring rod; 42. a paddle; 5. a material turning mechanism; 51. a drive shaft; 52. turning over the material paddle; 53. a material turning plate; 6. a second drive mechanism.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the recycled concrete mixer for improving mixing uniformity disclosed by the invention comprises a mixing drum 1, a mixing shaft 2 vertically arranged in the mixing drum 1, two groups of mixing paddles 4 rotating with the mixing shaft 2, a first driving mechanism 3 for driving the mixing shaft 2 and the mixing paddles 4 to rotate, and three groups of material turning mechanisms 5 arranged in the mixing drum 1.

Referring to fig. 2, the lower end of the mixing drum 1 is fixedly connected with a base 15 for improving the stability of the mixing drum 1; the top of churn 1 still is provided with backup pad 16, and backup pad 16 is through eight connecting rods 17 and base 15 fixed connection, and eight connecting rods 17 are along 16 circumference evenly distributed of backup pad to connecting rod 17 one end and 16 edge fixed connection of backup pad, the other end and base 15 fixed connection. The support plate 16 is provided with a feed inlet, and concrete raw materials and water can enter the mixing drum 1 through the feed inlet.

Referring to fig. 2, the mixing drum 1 includes a mixing drum 11 disposed on the upper end of a base 15 and a rotary drum 12 disposed on the upper end of the mixing drum 11, the lower end of the rotary drum 12 is rotatably connected with the mixing drum 11, and the upper end of the mixing drum 11 is rotatably connected with the lower end of a support plate 16. And a third driving mechanism 13 for driving the rotary cylinder 12 to rotate is arranged on the outer side of the mixing cylinder 11. The third driving mechanism 13 includes three third motors 131 fixedly connected to the side wall of the mixing drum 11, a driving gear 132 fixedly connected to the output end of the third motors 131, and a gear ring 133 fixedly connected to the lower end of the side wall of the rotary drum 12, wherein the gear ring 133 is disposed along the circumferential direction of the rotary drum 12 and engaged with the driving gear 132. The third motor 131 operates synchronously, and drives the driving gear 132 and the gear ring 133 to mesh with each other, so as to rotate the rotary drum 12. Three third motor 131 is along mixing barrel 11 circumference evenly distributed, can promote mixing barrel 11 rotatory stability.

Referring to fig. 1, the material turning mechanism 5 includes a transmission shaft 51 disposed in an inclined manner and three material turning paddles 52 fixedly connected to the side walls of the transmission shaft 51. One end of the transmission shaft 51 is rotatably connected with the side wall of the rotary drum 12, and the other end is arranged towards the bottom wall of the mixing drum 1. A second driving mechanism 6 for driving the transmission shaft 51 to rotate is further arranged on the outer side of the rotary cylinder 12, and the second driving mechanism 6 is set as a second motor; the second motor is fixedly connected with the rotary drum 12, and the output end of the second motor is coaxially and fixedly connected with the transmission shaft 51.

Referring to fig. 1, three stirring paddles 52 are uniformly distributed along the circumferential direction of the transmission shaft 51; the material turning paddle 52 is fixedly connected with a material turning plate 53 at one end far away from the transmission shaft 51. The second motor can drive the material turning paddle 52 and the material turning plate 53 to rotate along the axis of the transmission shaft 51, so that the concrete is turned. And when the material turning plate 53 moves to the position under the transmission shaft 51, one end of the material turning plate 53 facing the side wall of the mixing cylinder 11 is abutted against the side wall of the mixing cylinder 11, and the lower end of the material turning plate 53 is abutted against the bottom wall of the mixing cylinder 11, so that the concrete aggregate deposited at the bottom of the mixing cylinder 11 can be turned.

Referring to fig. 1, three group of material turning mechanisms 5 are evenly distributed along the circumferential direction of the rotary drum 12, and when the rotary drum 12 rotates, the rotary drum 12 can drive the three group of material turning mechanisms 5 to move along the circumferential direction of the rotary drum 12, so that concrete can be fully turned.

Referring to fig. 1, the stirring shaft 2 is located at the central position of the stirring cylinder 1, the stirring shaft 2 is arranged in a tubular shape, the upper end of the stirring shaft 2 is rotatably connected with the lower end of the supporting plate 16, and the lower end of the stirring shaft 2 is rotatably connected with the bottom wall of the stirring cylinder 1; the two groups of stirring paddles 4 are distributed along the length direction of the stirring shaft 2, each group of stirring paddles 4 comprises a stirring rod 41 which is horizontally arranged and a plurality of groups of blades 42 which are fixedly connected with the side wall of the stirring rod 41, the stirring rod 41 is vertically arranged with the stirring shaft 2, and one end of the stirring rod 41 extends into the stirring rod 41; the stirring shaft 2 is coaxially provided with a fixing rod 14, and the upper end and the lower end of the fixing rod 14 are respectively fixedly connected with a support plate 16 and the bottom wall of the stirring cylinder 1. The first driving mechanism 3 comprises a first motor 31 arranged at the upper end of the supporting plate 16 and fixedly connected with the supporting plate 16, a first bevel gear 34 coaxially and fixedly connected with one end of the stirring rod 41 positioned inside the stirring rod 41, and a second bevel gear 35 coaxially and fixedly connected with the fixing rod 14, wherein the first bevel gear 34 is meshed with the second bevel gear 35.

Referring to fig. 1, the output end of the first motor 31 extends to the lower end of the support plate 16 and is fixedly connected with the second belt pulley 33, the second belt pulley 33 is set as a small belt pulley, the upper end of the stirring shaft 2 is coaxially and fixedly connected with the first belt pulley 32, the first belt pulley 32 is set as a large belt pulley, and the first belt pulley 32 and the second belt pulley 33 are connected through a synchronous belt, so that when the first motor 31 operates, the stirring shaft 2 is driven to rotate, the stirring rod 41 is driven to stir concrete, and meanwhile, the first bevel gear 34 is meshed with the second bevel gear 35, so that the stirring rod 41 rotates, and the paddle 42 is driven to turn over the concrete.

Referring to fig. 1, a plurality of groups of blades 42 are arranged along the length direction of the stirring rod 41, each group of blades 42 includes three blades evenly arranged along the circumference of the stirring rod 41, and when the first motor 31 operates, the blades can turn over the concrete.

Referring to fig. 1, the width of the end of the blade remote from the mixer shaft 2 is greater than the width of the end of the blade near the mixer shaft 2 so that the blades 42 can sufficiently mix the concrete; the blades are arranged in an arc-shaped plate, and the bending direction of the blades is opposite to the rotating direction of the stirring rod 41, so that the blades 42 can turn over the concrete.

The implementation principle of the embodiment is as follows: pouring concrete raw materials such as cement, aggregate and water into the mixing drum 1 from a feeding hole, simultaneously starting the first motor 31, the second motor and the third motor 131, driving the mixing rod 41 to mix the concrete by the first motor 31, and driving the paddle 42 to turn the concrete; the second motor drives the transmission shaft 51 to rotate, so as to drive the material turning paddle 52 to turn over the concrete; the third motor 131 drives the rotary drum 12 to rotate, so that the material turning mechanism 5 can turn the concrete more fully.

Through the steps, the mixer can fully turn and mix the concrete, so that the concrete is mixed more uniformly.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.