A shear rotor assembly for a pump

Abstract

The present disclosure provides a shear rotor assembly for a pump, the rotor of which comprises a rotating seat and a first cylindrical circumferential part vertically arranged on the rotating seat, the first cylindrical circumferential part being provided with a plurality of axial straight slot-shaped flow holes arranged in sequence along the circumferential direction of the first cylindrical circumferential part, and the stator of which comprises a base provided with an axial feed port and a second cylindrical circumferential part vertically arranged on the base, the second cylindrical circumferential part being provided with a plurality of circular mesh holes arranged along the circumferential direction of the second cylindrical circumferential part, the number of the circular mesh holes being two or more arranged along the axial direction of the second cylindrical circumferential part; the first cylindrical circumferential part and the second cylindrical circumferential part are axially sleeved and radially close to each other, so that the axial straight slot-shaped flow holes are located in the region of the circular mesh holes of the first cylindrical circumferential part and close to the circular mesh holes; the main purpose of the present disclosure is to improve the silence, thereby facilitating the obtaining of a silent shear rotor assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pump, in particular to a shearing rotor assembly for pump. BACKGROUND

[0002] The shearing rotor assembly is the core component of the pump such as shearing pump, homogenizing pump, emulsifying pump, etc., and the shearing process is realized through the shearing rotor assembly.

[0003] The shearing rotor assembly generally includes a rotor and a stator, and the rotor and the stator rotate relative to each other to achieve the shearing purpose. For example, the high-shearing and high-circulation flow type emulsifier stator-rotor structure disclosed in CN102836667A, the shearing rotor assembly used in the high-efficiency emulsifier capable of guaranteeing emulsification effect disclosed in CN103432924A, the shearing rotor assembly used in the shearing homogenizing structure disclosed in CN114522566A, and the shearing rotor assembly used in the high-shearing reactor for rapid competitive reaction disclosed in CN105833822B. As known from the above, although the prior art provides various shearing rotor assemblies, there is no research on the main research direction of silence. In engineering, the present applicant finds that the noise of the shearing rotor assembly during operation is also the main source of noise.

[0004] Therefore, the present applicant will propose a shearing rotor assembly for pump, the main purpose of which is to improve silence, thereby facilitating the acquisition of a silent shearing rotor assembly. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the defects of the prior art, and to propose a shearing rotor assembly for pump, the main purpose of which is to improve silence, thereby facilitating the acquisition of a silent shearing rotor assembly.

[0006] Compared with the prior art, the present application proposes a shearing rotor assembly for pump, which includes a rotor and a stator. The rotor includes a rotating seat and a first cylindrical circumferential part vertically arranged on the rotating seat. A plurality of axial straight slot-shaped flow holes are arranged in sequence and parallel on the first cylindrical circumferential part along the circumferential direction. The stator includes a base provided with an axial feed inlet and a second cylindrical circumferential part vertically arranged on the base. A plurality of circular mesh holes are arranged on the second cylindrical circumferential part along the circumferential direction. The number of circular mesh holes is two or more arranged along the axial direction of the second cylindrical circumferential part.

[0007] The first cylindrical circumferential part and the second cylindrical circumferential part are axially fitted and radially close to each other, so that the axial straight slot-shaped flow holes are located in the region of the circular mesh holes of the first cylindrical circumferential part and close to the circular mesh holes.

[0008] Compared with the prior art, the application has the following advantages:

[0009] The present disclosure reduces noise by multiple flow guiding and shearing of the material. Specifically, after the material is sucked in, it is first guided and sheared by the axial straight slot-shaped flow holes arranged in sequence along the circumference of the first cylindrical circumferential part, and then further guided and sheared by the circular mesh holes on the stator. At the same time, the axial side edges of the axial straight slot-shaped flow holes on the side of the circular mesh holes shear the material. As a result, the shearing force of the axial straight slot-shaped flow holes on the material near the circular mesh holes (i.e. small circular holes) is reduced. That is, the important improvement point occurs when the axial side edges shear the material guided and sheared near the circular mesh holes (i.e. small circular holes). This is like cutting a lot of straight noodles, which makes it easier to cut and reduces the shearing force and thus reduces noise.

[0010] When the rotor and the stator are fitted together in multiple layers, i.e. the first cylindrical circumferential part is multiple and the second cylindrical circumferential part is multiple. If there are two layers (i.e. the first cylindrical circumferential part is two and the second cylindrical circumferential part is two), the material passes through the axial straight slot-shaped flow holes on the first layer rotor, the circular mesh holes on the first layer stator, the axial straight slot-shaped flow holes on the second layer rotor, and the circular mesh holes on the second layer stator in sequence. If there are three layers, the material passes through the axial straight slot-shaped flow holes on the first layer rotor, the circular mesh holes on the first layer stator, the axial straight slot-shaped flow holes on the second layer rotor, the circular mesh holes on the second layer stator, the densely arranged axial straight slot-shaped flow holes on the third layer rotor, and the circular mesh holes on the third layer stator in sequence. In this way, although the number of layers is increased, the shearing amount and efficiency are greatly improved, and the noise does not increase much due to the design of the present disclosure, so that the overall benefits outweigh the disadvantages. That is, the present disclosure is also beneficial to the technical solution of the rotor and the stator fitted together in multiple layers.

[0011] As can be seen from the above, the structure of the present disclosure is relatively simple, but this simple structure can bring about a breakthrough in reducing the noise of the rotor assembly, which is of great significance.

[0012] In some embodiments, when the first cylindrical circumferential part is multiple, each first cylindrical circumferential part is arranged in a coaxial ring shape in multiple layers. Correspondingly, the same number of second cylindrical circumferential parts are arranged in a coaxial ring shape in multiple layers. Furthermore, each first cylindrical circumferential part and the corresponding second cylindrical circumferential part are alternately fitted along the radial direction and closely cooperate with each other at each adjacent position.

[0013] In some embodiments, when the axial straight strip slot-shaped flow holes are machined on each first cylindrical circumferential part, the axial straight strip slot-shaped flow holes on each first cylindrical circumferential part are simultaneously machined in the same oblique direction, and the axial straight strip slot-shaped flow holes on each oblique direction are distributed in a turbine shape.

[0014] In some embodiments, when the circular mesh holes are machined on each second cylindrical circumferential part, the circular mesh holes on each second cylindrical circumferential part are simultaneously machined in the same radial direction.

[0015] In some embodiments, the rotating seat is arranged at one end of the first cylindrical circumferential part away from the stator, the base is arranged at one end of the second cylindrical circumferential part away from the rotor, and the first cylindrical circumferential part and the second cylindrical circumferential part are axially fitted in opposite directions.

[0016] In some embodiments, the rotating seat is arranged at one end of the first cylindrical circumferential part away from the stator, the base is arranged at one end of the second cylindrical circumferential part away from the rotor, and the first cylindrical circumferential part and the second cylindrical circumferential part are axially fitted in opposite directions.

[0017] In some embodiments, the outer bottom surface of the rotating seat is arranged as a plane, and the inner bottom surface of the rotating seat is arranged as a connecting part in the middle. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A perspective view of a shear rotor assembly for a pump according to the present disclosure.

[0019] Figure 2 A perspective view of a shear rotor assembly for a pump according to the present disclosure.

[0020] Figure 3 A perspective view of a rotor according to the present disclosure.

[0021] Figure 4 A perspective view of a stator according to the present disclosure.

[0022] Figure 5 A front view of a shear rotor assembly for a pump according to the present disclosure.

[0023] Figure 6 A sectional view of a shear rotor assembly for a pump according to the present disclosure.

[0024] Figure 7 A sectional view of a stator according to the present disclosure.

[0025] Figure 8 A sectional view of a rotor according to the present disclosure.

[0026] The reference signs are explained as follows: 1-rotating seat, 2-first cylindrical circumferential part, 3-axial straight long slot-shaped flow hole, 4-axial feed port, 5-base, 6-second cylindrical circumferential part, 7-circular mesh hole, 8-connecting part, 9-continuous shaft hole, 10-outer bottom surface, 11-axial side. DETAILED DESCRIPTION

[0027] The following description is provided to enable those skilled in the art to implement the present application. The embodiments described in the following description are only examples of the present application and those skilled in the art can make other obvious modifications. The essential principles of the present application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present application.

[0028] Those skilled in the art should understand that in the disclosure of the present application, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application.

[0029] As Figures 1 to 8 shown is a shear rotor assembly for a pump, comprising a rotor and a stator, the rotor comprising a rotating seat 1 and a first cylindrical circumferential part 2 vertically arranged on the rotating seat 1, the first cylindrical circumferential part 2 being provided with a plurality of axial straight long slot-shaped flow holes 3 arranged in sequence along the circumferential direction thereof, and the stator comprising a base 5 provided with an axial feed port 4 and a second cylindrical circumferential part 6 vertically arranged on the base 5, the second cylindrical circumferential part 6 being provided with a plurality of circular mesh holes 7 arranged along the circumferential direction thereof, the number of the circular mesh holes 7 being two or more arranged along the axial direction of the second cylindrical circumferential part 6.

[0030] The first cylindrical circumferential part 2 and the second cylindrical circumferential part 6 are axially fitted and radially close to each other, so that the axial straight long slot-shaped flow holes 3 are located in the region of the circular mesh holes 7 of the first cylindrical circumferential part 2 and close to the circular mesh holes 7.

[0031] When the first cylindrical circumferential part 2 is a plurality, each first cylindrical circumferential part 2 is arranged in a coaxial ring-like multi-layered manner, and correspondingly, the second cylindrical circumferential part 6 is arranged in the same number and in a coaxial ring-like multi-layered manner, and each first cylindrical circumferential part 2 and the corresponding second cylindrical circumferential part 6 are sequentially and alternately fitted in the radial direction and close to each other at each adjacent position.

[0032] In this example, asFigure 3 , 4 , 6, 7, 8, the first cylindrical circumferential part 2 is two, the second cylindrical circumferential part 6 is two, and the rotor can also be said to include two layers of the first cylindrical circumferential part 2, and the stator includes two layers of the second cylindrical circumferential part 6. Figure 6 The arrow shown in the figure indicates the direction of rotation of the rotor relative to the stator.

[0033] For the two-layer structure, in the radial direction, the first shear concerned by the present disclosure occurs between the first layer of the first cylindrical circumferential part 2 and the first layer of the second cylindrical circumferential part 6, specifically at the material inlet of the circular mesh hole 7 of the axial straight slot-shaped flow hole 3 of the first layer of the first cylindrical circumferential part 2 on the axial side edge 11 of the circular mesh hole 7, the second shear concerned by the present disclosure occurs between the first layer of the second cylindrical circumferential part 6 and the second layer of the first cylindrical circumferential part 2, specifically at the material outlet of the circular mesh hole 7 of the second layer of the first cylindrical circumferential part 2 on the axial side edge 11 of the first layer of the second cylindrical circumferential part 6, the third shear concerned by the present disclosure occurs between the second layer of the first cylindrical circumferential part 2 and the second layer of the second cylindrical circumferential part 6, specifically at the material inlet of the circular mesh hole 7 of the second layer of the first cylindrical circumferential part 2 on the axial side edge 11 of the second layer of the second cylindrical circumferential part 6, and the material finally flows out from the material outlet of the circular mesh hole 7 of the second layer of the second cylindrical circumferential part 6.

[0034] As the number of layers increases, for example, more than three layers, the diameters of the rotor and the stator will also relatively increase, and the number of shears will also increase, therefore, from the perspective of relative balance, the above-mentioned two-layer arrangement is the preferred technical solution, in the case of two-layer arrangement, not only is the structure compact, but also the shearing efficiency is high and the noise is low.

[0035] In some embodiments, as shown in Figure 6 , 8 , when machining the axial straight slot-shaped flow hole 3 on each first cylindrical circumferential part 2, the axial straight slot-shaped flow holes 3 on each first cylindrical circumferential part 2 are machined simultaneously in the same oblique direction relative to the radial direction, and each oblique axial straight slot-shaped flow hole 3 is distributed in a turbine shape. In this way, on the one hand, it is convenient to machine the axial straight slot-shaped flow holes 3 on the first cylindrical circumferential parts 2 of each layer along the same oblique direction, and on the other hand, as shown in Figure 8 , each oblique axial straight slot-shaped flow hole 3 is distributed in a turbine shape, which is conducive to the outward movement of the material during rotation.

[0036] In this example, as shown in Figure 1 , 3 , 8, the axial straight slot-shaped flow hole 3 adopts a straight hole with a rectangular cross section, and the length direction of the rectangular straight hole is arranged in the axial direction of the rotor.

[0037] Further, as shown in Figure 6 , 7 , when the circular mesh holes 7 are machined on each second cylindrical circumferential part 6, the circular mesh holes 7 on each layer of the second cylindrical circumferential part 6 are machined simultaneously in the same radial direction. Thus, in cooperation with the oblique axial straight slot-shaped flow holes 3, a certain angle is formed, so that there is a certain angle when shearing, and then during the shearing process, the material will not flow out of the circular mesh holes 7 quickly, thus being beneficial to shearing.

[0038] In some embodiments, as shown in Figure 1 , 2 , 3, 4, the rotating seat 1 is arranged at the end of the first cylindrical circumferential part 2 away from the stator, the base 5 is arranged at the end of the second cylindrical circumferential part 6 away from the rotor, and the first cylindrical circumferential part 2 and the second cylindrical circumferential part 6 are axially fitted in opposite directions. Thus, it is beneficial to compact structure, i.e. beneficial to reduce the axial size of the rotor assembly, and convenient to assemble.

[0039] In some embodiments, as shown in Figure 1 , 2 , 3, the rotating seat 1 is centrally arranged with a connecting part 8 connected to the driving shaft, and the connecting part 8 is arranged with a connecting shaft hole 9. Thus, it is beneficial to compact structure, and beneficial to connect the connecting part 8 with good manufacturing strength.

[0040] Further, as shown in Figure 1 , 2 , the outer bottom surface 10 of the rotating seat 1 is arranged as a plane, and the inner bottom surface of the rotating seat 1 is centrally arranged with the connecting part 8. Thus, while arranging the connecting part 8 with high strength, it is more beneficial to flatten the rotor, thus being beneficial to flatten the entire rotor assembly.

[0041] In understanding the present disclosure, if necessary, the above structure can refer to other embodiments / attachments Figure 1 understood that they are not described here.

[0042] The above description is only an embodiment of the present application for illustration, so equivalent changes or modifications made to the structure, features and principles described within the scope of the present patent protection are included in the scope of the present patent protection.

Claims

1. A shear rotor assembly for a pump comprising a rotor and a stator, characterized in that, The rotor comprises a rotating base (1) and a first cylindrical circumferential part (2) vertically arranged on the rotating base (1), a plurality of axial straight slot-shaped flow holes (3) are arranged on the first cylindrical circumferential part (2) in sequence along the circumferential direction of the first cylindrical circumferential part (2), the stator comprises a base (5) provided with an axial feed inlet (4) and a second cylindrical circumferential part (6) vertically arranged on the base (5), a plurality of circular mesh holes (7) are arranged on the second cylindrical circumferential part (6) along the circumferential direction of the second cylindrical circumferential part (6), and the number of the circular mesh holes (7) is two or more arranged along the axial direction of the second cylindrical circumferential part (6). The first cylindrical circumferential part (2) and the second cylindrical circumferential part (6) are axially sleeved and radially close to each other, so that the axial straight slot-shaped flow holes (3) are located in the region of the circular mesh holes (7) of the first cylindrical circumferential part (2) and close to the circular mesh holes (7).

2. The shear rotor assembly for a pump of claim 1, wherein, When the first cylindrical circumferential part (2) is a plurality of parts, each first cylindrical circumferential part (2) is arranged in a coaxial ring shape in multiple layers, and correspondingly, the second cylindrical circumferential part (6) is arranged in the same number and in a coaxial ring shape in multiple layers, and each first cylindrical circumferential part (2) and the corresponding second cylindrical circumferential part (6) are radially sleeved in sequence and close to each other at each adjacent position.

3. The shear rotor assembly for a pump of claim 2, wherein, When the axial straight slot-shaped flow holes (3) are machined on each first cylindrical circumferential part (2), the axial straight slot-shaped flow holes (3) on each first cylindrical circumferential part (2) are machined on the same inclined direction relative to the radial direction at the same time, and the axial straight slot-shaped flow holes (3) on each inclined direction are arranged in a turbine shape.

4. A shear rotor assembly for a pump as claimed in claim 2 or 3 wherein, When the circular mesh holes (7) are machined on each second cylindrical circumferential part (6), the circular mesh holes (7) on each second cylindrical circumferential part (6) are machined on the same radial direction at the same time.

5. The shear rotor assembly for a pump of claim 1 wherein, The rotating base (1) is arranged at one end of the first cylindrical circumferential part (2) away from the stator, the base (5) is arranged at one end of the second cylindrical circumferential part (6) away from the rotor, and the first cylindrical circumferential part (2) and the second cylindrical circumferential part (6) are axially sleeved in opposite directions.

6. The shear rotor assembly for a pump of claims 1 or 5, wherein, The rotating base (1) is provided with a connecting part (8) for connecting a driving shaft, and the connecting part (8) is provided with a shaft hole (9).

7. The shear rotor assembly for a pump of claim 6 wherein, The outer bottom surface (10) of the rotating base (1) is a flat surface, and the inner bottom surface of the rotating base (1) is provided with a connecting part (8) in the middle.

Images