Rotor structure and mixing machine

Abstract

The utility model discloses a rotor structure and a mixer, and relates to the technical field of mixers.The rotor structure comprises a rotor shaft, one end of the rotor shaft is connected with a driving shaft, and the driving shaft is connected with the rotor shaft through a locking sleeve; a shaft sleeve is arranged at the bottom end of the rotor shaft, a plurality of first inserting grooves are formed in the side face of the periphery of the shaft sleeve in an array mode, and each first inserting groove is connected with one first rotor blade. An end cover is arranged at the bottom end of the shaft sleeve, a plurality of second inserting grooves are formed in the side face of the periphery of the end cover, and each second inserting groove is connected with one second rotor blade. According to the rotor structure, the technical problems that in the welding process of the rotor blades, the rotor blades cannot be accurately positioned, the positions of the rotor blades are prone to deviation, and the rotor structure is unstable during rotation are solved, the first rotor blades are connected in advance through the first inserting grooves, and the second rotor blades are connected in advance through the second inserting grooves; in the subsequent welding process, the position states of the first rotor blade and the second rotor blade are kept unchanged all the time, and the stability of the rotor during rotation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mixers, in particular to a rotor structure and a mixer. Background Art

[0002] In a mixer, the existing rotor structure includes the following parts: a rotor shaft, a rotor blade, a sleeve, a rotor blade, an end cover and a locking sleeve. However, the existing rotor structure cannot accurately position the rotor blade during the welding process. Even after the rotor blade is manually positioned, the rotor blade may be offset during the subsequent welding process, resulting in instability of the rotor during rotation. Therefore, a rotor structure is proposed to solve the above problem. Utility Model Content

[0003] The utility model aims to provide a rotor structure, which solves the technical problems that the rotor blades cannot be accurately positioned during welding, the rotor blades are prone to positional deviation, and the rotor structure is unstable during rotation.

[0004] To achieve the above object, the utility model provides a rotor structure and a mixer, comprising:

[0005] A rotor shaft, one end of which is connected to a drive shaft, and the drive shaft is connected to the rotor shaft via a locking sleeve;

[0006] A shaft sleeve is arranged at the bottom end of the rotor shaft, and a plurality of first slots are arranged in an array on the outer peripheral side surface of the shaft sleeve, and each of the first slots is connected to a first rotor blade.

[0007] The end cover is arranged at the bottom end of the shaft sleeve, and a plurality of second slots are arranged in an array on the outer peripheral side surface of the end cover, and each of the second slots is connected to a second rotor blade.

[0008] Preferably, a first shaft head is provided at one end of the first rotor blade, and the first shaft head is snap-connected to the first slot.

[0009] Preferably, one of the side surfaces of the first rotor blade is configured as a first arc-shaped concave surface, and the first arc-shaped concave surface is in contact with the outer peripheral side surface of the drive shaft.

[0010] Preferably, a second shaft head is provided at the end of the second rotor blade, and the second shaft head is snap-connected to the second slot.

[0011] Preferably, an arc-shaped convex surface is integrally provided on the top surface of the second rotor blade, and the arc-shaped convex surface extends along the length direction of the second rotor blade.

[0012] Preferably, a stirring column is provided on the bottom surface of the second rotor blade, and the stirring column is perpendicular to the second rotor blade.

[0013] Preferably, one of the side surfaces of the second rotor blade is configured as a second arc-shaped concave surface, and the second arc-shaped concave surface is in contact with the outer peripheral side surface of the end cover.

[0014] Preferably, a connecting groove is provided at the top end of the rotor shaft, the connecting groove is butt-connected to the locking sleeve, and the locking sleeve is connected to the driving shaft via a plurality of fastening bolts.

[0015] A mixer comprises the rotor structure described in any one of the above items.

[0016] Compared with the above-mentioned background technology, the utility model provides a rotor structure, in which a first slot is preset on the outer peripheral side of the sleeve and a second slot is preset on the outer peripheral side of the end cover. Before welding the first rotor blade and the second rotor blade, the first rotor blade is inserted into the first slot and the second rotor blade is inserted into the second slot in advance. In the subsequent welding process, the position state of the first rotor blade and the second rotor blade remains unchanged, which can effectively improve the stability of the rotor during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model 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 in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 A three-dimensional structural diagram of a rotor structure provided by an embodiment of the utility model;

[0019] Figure 2 An exploded schematic diagram of a rotor structure provided by an embodiment of the utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the first rotor blade provided in the second embodiment of the utility model.

[0021] Specifically, 1-rotor shaft; 2-driving shaft; 3-locking sleeve; 4-shaft sleeve; 5-first slot; 6-first rotor blade; 601-first shaft head; 7-end cover; 8-second rotor blade; 801-stirring column; 802-arc convex surface; 9-connecting groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1 and Figure 2 As shown, a rotor structure includes: a rotor shaft 1, a shaft sleeve 4 and an end cover 7.

[0025] One end of the rotor shaft 1 is connected to the drive shaft 2, and the drive shaft 2 is connected to the output end of the drive motor through a transmission structure. The drive shaft 2 is connected to the rotor shaft 1 through a locking sleeve 3. After the locking sleeve 3 connects the rotor shaft 1 and the drive shaft 2, the locking sleeve 3, the rotor shaft 1 and the drive shaft 2 are coaxial, and the locking sleeve 3 and the rotor shaft 1 further lock the drive shaft 2, so that the rotor shaft 1 cannot rotate relative to the drive shaft 2, ensuring that the drive shaft 2 drives the rotor shaft 1 to rotate stably.

[0026] A shaft sleeve 4 is provided at the bottom end of the rotor shaft 1, and the shaft sleeve 4 is fixedly connected to the rotor shaft 1, and the shaft sleeve 4 cannot rotate relative to the rotor shaft 1, and a plurality of first slots 5 are arranged in an array on the outer peripheral side of the shaft sleeve 4, and at the same height position on the shaft sleeve 4, the first slots 5 are arranged at equal angles on the outer peripheral side of the shaft sleeve 4 to ensure that the overall force of the rotor shaft 1 is balanced, thereby improving the stability of the rotor shaft 1 during high-speed rotation, wherein each first slot 5 is connected to a first rotor blade 6, and the first rotor blade 6 is used to stir the material.

[0027] An end cover 7 is provided at the bottom end of the shaft sleeve 4, and the end cover 7 is fixed to the bottom of the driving shaft 2 by bolts (not shown in the figure), wherein the bolts penetrate the end cover 7 from the bottom of the end cover 7 to fix the end cover 7 to the bottom of the shaft sleeve 4, and the rotor shaft 1 cannot rotate relative to the shaft sleeve 4. A plurality of second slots (not shown in the figure) are arranged in an array on the outer peripheral side surface of the end cover 7, and each second slot is connected to a second rotor blade 8, which is also used for stirring materials.

[0028] Among them, a first shaft head 601 is set at one end of the first rotor blade 6, and the first shaft head 601 is mainly used for clamping and connecting to the first slot 5. After the first shaft head 601 is inserted into the first slot 5, the position of the first rotor blade 6 relative to the sleeve 4 is fixed. During the welding process of the first rotor blade 6, the position of the first rotor blade 6 will not be easily displaced by external force, thereby improving the accuracy of the first rotor blade 6 during the welding process.

[0029] like Figure 3 As shown, in the second embodiment of the utility model, the top surface of the first rotor blade 6 is provided with a slope 602, which relatively reduces the contact area between the material and the side of the first rotor blade 6. During the rotation of the first rotor blade 6, the slope 602 preferentially contacts the material, thereby reducing the resistance encountered by the first rotor blade 6 during the rotation, and effectively improving the material mixing efficiency.

[0030] In one embodiment of the utility model, the acute angle between the top surface of the first rotor blade 6 and the horizontal plane is between 5° and 30°, which can be set according to actual needs. Preferably, the acute angle between the top surface of the first rotor blade 6 and the horizontal plane is 20°. When the first rotor blade 6 is stirring the material, the shear flow of the material in various places in the mixing barrel is accelerated, so as to achieve a more sufficient stirring effect on the material. While ensuring that the first rotor blade 6 has the best stirring effect, the resistance of the first rotor blade 6 is reduced as much as possible, which can protect the first rotor blade 6 and the rotor shaft 1, and at the same time, further improve the material stirring efficiency.

[0031] Of course, the first rotor blade 6 can be set to a torsion angle between 5° and 10°. It should be noted that the torsion angle of the first rotor blade 6 is the angle between the top surface of one end of the first rotor blade 6 and the top surface of the other end of the first rotor blade 6. The specific structure can refer to the fan blade. Preferably, the torsion angle is 10°. When the acute angle between the top surface of one end of the first rotor blade 6 and the horizontal plane is 15°, the acute angle between the top surface of the other end of the first rotor blade 6 and the horizontal plane is 25°. The setting of the torsion angle further accelerates the shear flow of materials at various locations in the mixing barrel, thereby having a more sufficient material stirring effect.

[0032] It should be noted that, corresponding to the first rotor blade 6, the acute angle between the length direction of the first slot 5 and the horizontal plane is between 5°-30°, wherein the structural state of the first slot 5 is designed according to the structure of the first shaft head 601 to ensure that the first slot 5 and the first shaft head 601 can also be precisely matched.

[0033] In one embodiment of the utility model, one of the side surfaces of the first rotor blade 6 is set as a first arc-shaped concave surface. When the first shaft head 601 is fully inserted into the first slot 5, the first arc-shaped concave surface and the outer peripheral side surface of the driving shaft 2 fit each other, ensuring that there is no assembly gap between the first rotor blade 6 and the shaft sleeve 4. When the first rotor blade 6 stirs the material, the material will not be stuck, thereby improving the material stirring effect.

[0034] A second shaft head (not shown in the figure) is integrally provided at the end of the second rotor blade 8, and the second shaft head is connected to the second slot by clamping. Further, after the second shaft head is inserted into the second slot, the position of the second rotor blade 8 relative to the shaft sleeve 4 is fixed, and during the welding process of the second rotor blade 8, the position of the second rotor blade 8 will not be easily offset by external force, thereby improving the accuracy of the welding process of the second rotor blade 8.

[0035] The top surface of the second rotor blade 8 is integrally provided with an arc-shaped convex surface 802, which extends along the length direction of the second rotor blade 8. During the process of the second rotor blade 8 stirring the material, the setting of the arc-shaped convex surface 802 can further accelerate the shear flow between the materials and further improve the material stirring efficiency.

[0036] In addition, a stirring column 801 is provided on the bottom surface of the second rotor blade 8, and the stirring column 801 is arranged perpendicular to the second rotor blade 8, and is used to assist in stirring the materials at the bottom of the mixing drum, so that the materials at the bottom of the mixing drum can fully participate in the mixing of various component materials. On the other hand, the lower part of the stirring column 801 can be set to a wedge shape, a cylindrical shape, and a prism shape. The shape of the lower part of the stirring column 801 is set according to the shape of the bottom of the mixing drum, which is mainly used to adapt to the bottom surfaces of the mixing drum of different shapes. The shape of the lower part of the stirring column 801 is not specifically limited.

[0037] One of the side surfaces of the second rotor blade 8 is set as a second arc-shaped concave surface, and the second arc-shaped concave surface fits with the outer peripheral side surface of the end cover 7. When the second shaft head is fully inserted into the second slot, the second arc-shaped concave surface fits with the outer peripheral side surface of the end cover 7, ensuring that there is no assembly gap between the second rotor blade 8 and the shaft sleeve 4, and when the second rotor blade 8 stirs the material, the material will not be stuck, thereby improving the material stirring effect.

[0038] A connecting groove 9 is provided at the top end of the rotor shaft 1, and the connecting groove 9 is butt-connected to the locking sleeve 3. After the drive shaft 2 is inserted into the connecting groove 9, the locking sleeve 3 is fixed to the outside of the drive shaft 2, and the locking sleeve 3 is fixed to the side of the connecting groove 9 by six fastening bolts, wherein three fastening bolts are respectively provided on both sides of the locking sleeve 3, and the rotor shaft 1 and the drive shaft 2 are stably connected by the locking sleeve 3.

[0039] When assembling the utility model, the drive shaft 2 is butt-jointed and inserted into the connecting groove 9, the drive shaft 2 is locked and connected to the rotor shaft 1 through the locking sleeve 3, a first slot 5 is preset on the outer peripheral side of the sleeve 4, and a second slot is preset on the outer peripheral side of the end cover 7, after the first rotor blade 6 is inserted into the first slot 5, the first rotor blade 6 is welded to the sleeve 4, after the second rotor blade 8 is inserted into the second slot, the second rotor blade 8 is welded to the end cover 7, the sleeve 4 is assembled and connected to the lower end of the rotor shaft 1, and the end cover 7 is connected to the lower end of the sleeve 4, to complete the assembly of the rotor structure.

[0040] In summary, a first slot 5 is preset on the outer peripheral side of the sleeve 4 to connect the first rotor blade 6, and a second slot is preset on the outer peripheral side of the end cover 7 to connect the second rotor blade 8. In the subsequent welding process, the position state of the first rotor blade 6 and the second rotor blade 8 remains unchanged, which effectively improves the stability of the rotor during rotation.

[0041] In addition to the above-mentioned rotor structure, the present invention also provides a mixer including the rotor structure disclosed in the above-mentioned embodiment. For the structures of other parts of the mixer, please refer to the prior art and will not be described in detail herein.

[0042] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0043] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the utility model.

Claims

1. A rotor structure, characterized in that: include: A rotor shaft, one end of which is connected to a drive shaft, and the drive shaft is connected to the rotor shaft via a locking sleeve; A shaft sleeve, wherein the shaft sleeve is arranged at the bottom end of the rotor shaft, and a plurality of first slots are arranged in an array on the outer peripheral side of the shaft sleeve, and each of the first slots is connected to a first rotor blade; An end cover is arranged at the bottom end of the shaft sleeve, and a plurality of second slots are arranged in an array on the outer peripheral side surface of the end cover, and each of the second slots is connected to a second rotor blade.

2. A rotor structure according to claim 1, characterized in that: A first shaft head is disposed at one end of the first rotor blade, and the first shaft head is snap-connected to the first slot.

3. A rotor structure according to claim 2, characterized in that: One of the side surfaces of the first rotor blade is configured as a first arc-shaped concave surface, and the first arc-shaped concave surface is in contact with the outer peripheral side surface of the drive shaft.

4. A rotor structure according to claim 1, characterized in that: A second shaft head is disposed at the end of the second rotor blade, and the second shaft head is snap-connected to the second slot.

5. A rotor structure according to claim 4, characterized in that: An arc-shaped convex surface is integrally provided on the top surface of the second rotor blade, and the arc-shaped convex surface extends along the length direction of the second rotor blade.

6. A rotor structure according to claim 5, characterized in that: A stirring column is provided on the bottom surface of the second rotor blade, and the stirring column is perpendicular to the second rotor blade.

7. A rotor structure according to claim 5, characterized in that: One of the side surfaces of the second rotor blade is configured as a second arc-shaped concave surface, and the second arc-shaped concave surface is in contact with the outer peripheral side surface of the end cover.

8. A rotor structure according to any one of claims 1 to 7, characterized in that: A connecting groove is provided at the top end of the rotor shaft, and the connecting groove is butt-connected to the locking sleeve, and the locking sleeve is connected to the driving shaft via a plurality of fastening bolts.

9. A mixer, characterized in that: The rotor structure comprises any one of claims 1 to 8.

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