Stirring pot with elastic stirring teeth

Abstract

The present invention proposes a stirring pot with elastic stirring teeth, which solves the problems in the prior art that the stirring equipment is prone to shaft breakage, the stirring arm and the shovel plate are prone to deformation, and the material is crushed to affect the product quality. The stirring pot comprises a stirring barrel, a vertical stirring shaft is provided in the middle position of the stirring barrel, a plurality of stirring arms are connected to the stirring shaft, a shovel plate is provided at the lower end of the stirring arm, the stirring shaft drives the stirring arm to rotate in a horizontal plane, and the shovel plate is used to stir the material in the stirring barrel, a connecting seat is fixed at the upper end of the stirring shaft, the upper end of the stirring arm is connected to the connecting seat through a hinge shaft, and the extension direction of the hinge shaft is perpendicular to the linear speed direction of the stirring arm; the connecting seat is also provided with elastic parts and limit blocks located on both sides of the hinge shaft, the elastic parts press the stirring arm against the limit blocks with its hinge shaft as the center, the elastic parts are located behind the hinge shaft, and the limit blocks are located in front of the hinge shaft.

Description

Technical Field

[0001] The invention relates to the technical field of stirring equipment, in particular to a stirring pot with elastic stirring teeth which has a simple structure and is easy to use. Background Art

[0002] Mixing equipment is one of the necessary production equipment in many industries. It can mix a variety of materials evenly, effectively improve production efficiency and reduce the labor intensity of workers. China Publication No. CN104760137B discloses a "self-propelled hydraulic mixer". Figure 3 It can be seen that the stirring arm is driven to rotate by the stirring shaft, and the shovel plate at the lower end of the stirring arm is used to stir the material in the mixing barrel. However, there are many problems in the use of the stirring equipment with this structure: 1. When the material contains relatively hard particles of uneven size (such as gravel and sand when mixing concrete), these hard particles are easily stuck between the shovel plate and the bottom of the mixing barrel, jamming the stirring arm and being forced to move forward by the shovel plate. Although these materials are very small in size, they exert a great force on the middle stirring shaft, stirring arm and shovel plate, which can easily cause the middle stirring shaft to break, and the stirring arm and shovel plate are also very easy to deform. In extreme cases, the shovel plate will even crush the stuck material, directly destroying the specifications of the material and affecting the quality of the final product; 2. Only the shovel plate below pushes the material, resulting in a simple displacement of the lower material, while the upper material stays in place and cannot be fully stirred.

[0003] Therefore, at this stage, there is an urgent need for a stirring device that can solve the above-mentioned technical problems. Summary of the invention

[0004] The invention provides a stirring pot with elastic stirring teeth, which solves the problems in the prior art that the stirring equipment is prone to shaft breakage, the stirring arm and the shovel plate are prone to deformation, and the material is crushed to affect the product quality.

[0005] The technical solution of the present invention is implemented as follows: a stirring pot with elastic stirring teeth comprises a stirring barrel, a vertical stirring shaft is provided in the middle position of the stirring barrel, a plurality of stirring arms are connected to the stirring shaft, a shovel is provided at the lower end of the stirring arm, the stirring shaft drives the stirring arm to rotate in a horizontal plane, and the shovel is used to stir the material in the stirring barrel, a connecting seat is fixed at the upper end of the stirring shaft, the upper end of the stirring arm is connected to the connecting seat through a hinge shaft, and the extension direction of the hinge shaft is perpendicular to the linear speed direction of the stirring arm;

[0006] The connecting seat is also provided with an elastic member and a limit block located on both sides of the hinge shaft. The elastic member presses the stirring arm against the limit block with its hinge shaft as the center. The elastic member is located behind the hinge shaft, and the limit block is located in front of the hinge shaft.

[0007] As a preferred implementation, the elastic member is a compression spring, and the connecting seat is further provided with an adjusting bolt for adjusting the tightness of the compression spring.

[0008] As a preferred embodiment, the distances between the stirring arms and the stirring shaft are different, and the movement trajectories of all the stirring arms form a plurality of concentric circles.

[0009] As a preferred embodiment, a shovel plate for pushing materials is also provided in the middle portion of the stirring arm.

[0010] As a preferred embodiment, the two shovel plates on the outermost stirring arms push the material toward the center of the stirring barrel;

[0011] The two shovel plates on the remaining stirring arms face different directions, wherein the lower shovel plate pushes the material toward the outer edge of the stirring barrel, and the upper shovel plate pushes the material toward the center of the stirring barrel.

[0012] As a preferred embodiment, the stirring arm is V-shaped, with its opening facing the direction of movement.

[0013] As a preferred embodiment, reinforcing ribs are also provided on the outermost stirring arms.

[0014] After adopting the above technical scheme, the beneficial effect of the present invention is as follows: the present invention hinges the stirring arm to the connection seat fixed on the upper end of the stirring shaft, so that there is no forced force relationship between the stirring arm and the stirring shaft. When stirring materials, the shovel plate at the lower end of the stirring arm hits the hard material, and the material is stuck between the shovel plate and the bottom surface of the stirring barrel. The stirring arm will be subjected to a large force and rotate around the hinge shaft at its upper end. At the same time, the elastic member is compressed to make the shovel plate rise a certain distance to increase the distance between the shovel plate and the bottom surface of the stirring barrel, so that the shovel plate passes over the stuck material instead of hard friction with the bottom surface of the stirring barrel, thereby eliminating the force acting on the stirring shaft due to the stuck material, avoiding the occurrence of broken shaft, and the stirring arm and the shovel plate will not be deformed, and the material will not be crushed, ensuring the quality of the product. When the shovel plate passes over these materials, the stirring arm can return to its initial state under the action of the elastic member. In this process, the limit block can ensure that the stirring arm returns to its initial state, so that it is always in a stable and reliable working state.

[0015] The elastic member adopts a compression spring, and an adjusting bolt for adjusting the tightness of the compression spring is arranged on the connecting seat. The tightness of the compression spring can be selectively adjusted according to the different materials being stirred, so that the material will not be stuck and the shaft breakage can be avoided while ensuring the stirring effect.

[0016] The distances between the multiple stirring arms and the stirring shaft are set to be different, so that the movement trajectories of all the stirring arms form multiple concentric circles. This structural form can enable all materials in the mixing barrel to be pushed by the shovel plate on the stirring arm, thereby improving the stirring effect.

[0017] A shovel plate is arranged at the middle position of the stirring arm, that is, two shovel plates arranged up and down are arranged on one stirring arm, which can synchronously stir the materials at the bottom and middle / upper part of the stirring barrel, further improving the stirring effect of the materials.

[0018] The shovel on the outermost stirring arm pushes the material toward the center of the mixing barrel, but the two shovels on the other stirring arms have different directions. The lower shovel pushes the material outward, and the upper shovel pushes the material inward, which can make the upper and lower materials continuously replace their positions, forming a "rolling up and down" effect in the mixing barrel, effectively improving the mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a schematic diagram of the internal structure of a mixing barrel according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A schematic top view of the illustrated embodiment;

[0022] Figure 3 , Figure 4 and Figure 5 They are schematic diagrams of the state changes when the shovel plate below is stuck with the material;

[0023] In the figure: 1-mixing barrel; 2-mixing shaft; 31-first mixing arm; 311-first lower shovel plate; 312-first upper shovel plate; 32-second mixing arm; 321-second lower shovel plate; 322-second upper shovel plate; 33-third mixing arm; 331-third lower shovel plate; 332-third upper shovel plate; 34-fourth mixing arm; 341-fourth lower shovel plate; 342-fourth upper shovel plate; 4-connecting seat; 5-hinge shaft; 6-limiting block; 7-compression spring; 8-adjusting bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example:

[0026] like Figure 1 and Figure 2 As shown, there are an internal front view and a top view of an embodiment of the present invention. The embodiment first comprises a cylindrical mixing barrel 1, the upper portion of which is open, and a vertical mixing shaft 2 is arranged in the middle thereof. The lower end of the mixing shaft 2 is connected to a hydraulic motor or other power drive mechanism to drive the mixing shaft 2 to rotate in the mixing barrel 1. These are all contents that have been disclosed in the prior art and will not be repeated here.

[0027] A connecting seat 4 is fixed at the upper end of the stirring shaft 2. The connecting seat 4 rotates synchronously with the stirring shaft 2. Its main function is to transmit power, and transmit the rotational motion of the stirring shaft 2 to the stirring arm and the shovel plate to achieve stirring of the material. To this end, this embodiment is provided with a plurality of (four are shown in the figure) stirring arms, namely a first stirring arm 31, a second stirring arm 32, a third stirring arm 33 and a fourth stirring arm 34. The four stirring arms are of the same shape, all in a V-shaped structure, with their openings facing the direction of their movement, and their upper ends are all connected to the connecting seat 4, and are driven to rotate by the connecting seat 4. As shown in FIG. Figures 3 to 5As shown, taking the fourth stirring arm 34 as an example, the left direction is defined as the front, and the right position is defined as the back, then the V-shaped opening faces forward. Different from the structure in the prior art in which the upper end of the stirring arm is directly fixed to the connecting seat 4, the upper ends of each stirring arm in this embodiment are not fixed to the connecting seat 4, but are rotatably connected to the connecting seat 4 through a hinge shaft 5. The extension direction of the hinge shaft 5 is perpendicular to the linear velocity direction of the corresponding stirring arm, and a compression spring 7 and a limit block 6 are also provided on both sides of the hinge shaft 5. The compression spring 7 is pressed against between the connecting seat 4 and the fourth stirring arm 34, and elastic force is always stored. The limit block 6 is directly fixed on the connecting seat 4, and the front end of the fourth stirring arm 34 is blocked by the limit block 6, which is equivalent to the fourth stirring arm 34 being pressed against the limit block 6 by the compression spring 7 with the hinge shaft 5 as the rotation center (i.e. Figure 3 The state shown is the state before the material is stirred. The compression spring 7 can be replaced by other elastic members. At the same time, an adjusting bolt 8 for adjusting the tightness of the compression spring 7 is also provided on the connecting seat 4, which can be adaptively adjusted according to the different materials being stirred.

[0028] like Figures 3 to 5 As shown, two shovel plates are further provided on the fourth stirring arm 34, namely a fourth lower shovel plate 341 at the bottom and a fourth upper shovel plate 342 at the top. When the stirring shaft 2 drives the connecting seat 4 and the fourth stirring arm 34 to rotate forward, the fourth lower shovel plate 341 and the fourth upper shovel plate 342 at the top can push the material to achieve the stirring function. For the fourth lower shovel plate 341, since it is close to the bottom surface of the stirring barrel 1, it is very easy to get stuck in hard materials (such as stones, etc.). When the material is stuck between the fourth lower shovel plate 341 and the bottom surface of the stirring barrel 1 When the fourth stirring arm 34 is in a state of being moved backward, the fourth stirring arm 34 is subjected to a greater force and rotates backward with the hinge shaft 5 as the center, and at the same time compresses the compression spring 7, so that the distance between the fourth lower shovel plate 341 and the bottom surface of the stirring barrel 1 increases, so that the fourth lower shovel plate 341 passes over the stuck material, and the stuck material directly escapes from between the fourth lower shovel plate 341 and the bottom surface of the stirring barrel 1. Thereafter, under the action of the compression spring 7, the fourth stirring arm 34 swings forward with the hinge shaft 5 as the center until the front end of the fourth stirring arm 34 contacts the limit block 6 and returns to the state of being moved forward. Figure 3 The state shown. This part of the structure is also the core point of the patent of the present invention. When the material is stuck in the shovel plate, it can transfer the force to the fourth stirring arm 34, and use the compression spring 7 to realize a small rotation of the fourth stirring arm 34. Although its rotation angle may be small, it can still solve the problem of material jamming well, avoid the middle stirring shaft 2 from being broken due to a large force, and ensure that the fourth lower shovel plate 341 will not be deformed and will not damage the material. Especially in the production of concrete, gravel is the material that is most easily stuck. The structure of this patent can make the shovel plate pass over the gravel without damaging the gravel, thereby ensuring the quality of the concrete.

[0029] Except for the fourth stirring arm 34, the other three stirring arms are also hinged on the connecting seat 4 through this structure, which can effectively solve the problem of material jamming, and each stirring arm is also fixed with two shovels arranged up and down. In addition, these four stirring arms still have certain requirements when installing, that is, the distances from the stirring shaft 2 in the middle position are different, that is, some are close to the stirring shaft 2, and some are far from the stirring shaft 2, such as Figure 2 As shown, the distances between the first stirring arm 31, the second stirring arm 32, the third stirring arm 33 and the fourth stirring arm 34 and the stirring shaft 2 are increasing from small to large, and their arrangement is also a cross structure. The advantage of this structure is that the four stirring arms can have different rotation radii when rotating, forming four concentric circles, and the shovels fixed on them can stir the materials at various positions in the stirring barrel 1, and there is basically no empty area for stirring.

[0030] As for the two shovel plates on each stirring arm, there are also certain installation requirements. First, for the fourth stirring arm 34 at the outermost periphery, since it is close to the inner wall of the stirring barrel 1, the fourth lower shovel plate 341 and the fourth upper shovel plate 342 installed thereon both push the material inward, and there is no need to push the material outward. As for the remaining three stirring arms, since there is a large amount of material around them, in order to improve the stirring effect of the material, the lower shovel plates on the first stirring arm 31, the second stirring arm 32, and the third stirring arm 33 should push the material outward, that is, the first lower shovel plate 311, the second lower shovel plate 321, and the third lower shovel plate 331 are all tilted and fixed on the corresponding stirring arms, and when the stirring shaft 2 rotates, they can push the material outward. The upper shovels on the first stirring arm 31, the second stirring arm 32, and the third stirring arm 33 are used to push the material inward, that is, the first upper shovel 312, the second upper shovel 322, and the third upper shovel 332 are also tilted and fixed on the corresponding stirring arms, and when the stirring shaft 2 rotates, they can push the material inward. The combined effect of the above-mentioned multiple shovels is to achieve the "up and down rolling" of the material in the stirring barrel 1, and its effect is as follows: Figure 1 As shown by the dotted arrow in the figure, this can greatly improve the stirring effect of the material.

[0031] Finally, for the fourth stirring arm 34 at the outermost periphery, since it is farthest from the stirring shaft 2 and is subject to the greatest resistance from the material, this embodiment may add corresponding reinforcing ribs to the fourth stirring arm 34 to improve its overall mechanical strength.

[0032] The stirring pot with elastic stirring teeth of the present invention has a simple structure and is easy to use, can well solve the problem of materials being stuck in the shovel plate, avoids the occurrence of shaft breakage, and has good practicality.

[0033] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stirring pot with elastic stirring teeth, comprising a stirring barrel, a vertical stirring shaft is provided in the middle of the stirring barrel, a plurality of stirring arms are connected to the stirring shaft, a shovel is provided at the lower end of the stirring arm, the stirring shaft drives the stirring arm to rotate in a horizontal plane, and the shovel is used to stir the material in the stirring barrel, characterized in that: A connecting seat is fixed to the upper end of the stirring shaft, and the upper end of the stirring arm is connected to the connecting seat through a hinge shaft, and the extending direction of the hinge shaft is perpendicular to the linear speed direction of the stirring arm; The connecting seat is also provided with an elastic member and a limit block located on both sides of the hinge shaft, wherein the elastic member presses the stirring arm against the limit block with its hinge shaft as the center, the elastic member is located behind the hinge shaft, and the limit block is located in front of the hinge shaft; The middle part of the stirring arm is also provided with a shovel plate for pushing the material; The two shovels on the outermost stirring arms push the material toward the center of the mixing barrel; The two shovel plates on the remaining mixing arms face different directions, wherein the lower shovel plate pushes the material toward the outer edge of the mixing barrel, and the upper shovel plate pushes the material toward the center of the mixing barrel; The outermost stirring arm is also provided with reinforcing ribs.

2. The stirring pot with elastic stirring teeth according to claim 1, characterized in that: The elastic member is a compression spring, and the connecting seat is also provided with an adjusting bolt for adjusting the tightness of the compression spring.

3. The stirring pot with elastic stirring teeth according to claim 1 or 2, characterized in that: The distances between the stirring arms and the stirring shaft are different, and the movement trajectories of all the stirring arms form a plurality of concentric circles.

4. The stirring pot with elastic stirring teeth according to claim 1, characterized in that: The stirring arm is V-shaped, and its opening faces the moving direction.

5. The stirring pot with elastic stirring teeth according to claim 1, characterized in that: The number of the stirring arms is four and they are arranged in a cross shape.

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