Spiral rotor

Abstract

The utility model discloses a spiral rotor. The spiral rotor comprises a rotor core and rotor blades, the rotor blades are fixed on the rotor core; the rotor core is made of stainless steel, and the rotor blades are made of engineering plastics. According to the utility model, the requirements of conveying various strong chemical corrosion media can be met; due to the design of the spiral rotor, disturbance of the rotor to a medium in the rotating working process is reduced, the physical and chemical properties of the medium are prevented from being changed to a great extent, and the requirement for transporting part of oil products and chemical solvents is met; and the impact of the liquid on the pump body in the conveying process can be reduced, so that the mechanical noise and vibration of the whole pump are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rotors, in particular to a spiral rotor. Background Art

[0002] In existing technology, lobe rotor pumps are highly efficient and reliable fluid conveying equipment, widely used in various industries, including the petroleum, chemical, pharmaceutical, and food industries. Their core component, the rotor, plays a crucial role in the pump's operation. The rotor's rotation interacts with the cam within the pump housing, creating a volume change that allows the medium to be drawn in and out.

[0003] The rotors of cam rotor pumps are often injection-molded from a single material, either all-metal (such as cast iron, cast steel, or stainless steel) or all-plastic. While all-metal rotors offer high strength and wear resistance, they are susceptible to corrosion when conveying highly chemically corrosive media, shortening their service life and even creating the risk of leakage. While all-plastic rotors offer excellent corrosion resistance, their strength and wear resistance are relatively poor, making them difficult to meet the requirements of high-pressure, high-speed operation. Summary of the Invention

[0004] According to an embodiment of the present invention, there is provided a helical rotor comprising: a rotor core and rotor blades;

[0005] The rotor blades are fixed to the rotor core;

[0006] The rotor core is made of stainless steel and the rotor blades are made of engineering plastic.

[0007] Furthermore, the rotor blade is spiral-shaped, and the edge of the rotor blade extends in a spiral shape along the circumferential direction of the rotor core.

[0008] Furthermore, the number of the rotor blades is at least two and they are evenly distributed on the circumference of the rotor core.

[0009] Furthermore, the rotor blades are fixed to the rotor core by bolts.

[0010] Furthermore, the rotor core has a penetrating center hole, and the rotor core is mounted on the external pump shaft through the center hole.

[0011] Furthermore, the cross section of the rotor blade is streamlined.

[0012] According to the spiral rotor of the embodiment of the present invention, it can meet the needs of transporting various highly chemically corrosive media; the design of the spiral rotor reduces the disturbance of the rotor to the medium during rotation, and largely avoids changes in the physical and chemical properties of the medium, meeting the requirements of transporting some oil products and chemical solvents; and can reduce the impact of the liquid on the pump body during transportation, thereby reducing the overall mechanical noise and vibration of the pump.

[0013] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a helical rotor according to an embodiment of the present utility model;

[0015] Figure 2 1 is a top view of a helical rotor according to an embodiment of the present invention;

[0016] Figure 3 It is a side view of a spiral rotor according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to further illustrate the present invention.

[0018] First, combine Figures 1-3 The spiral rotor according to the embodiment of the present invention is described and used in a cam rotor pump, which has a wide range of application scenarios.

[0019] like Figures 1-3 As shown, the spiral rotor of the embodiment of the present invention includes: a rotor core 1 and rotor blades 2.

[0020] Specifically, if Figures 1-3 As shown, in this embodiment, the rotor blades 2 are fixed on the rotor core 1; the rotor core 1 is made of stainless steel, which has strong corrosion resistance and high strength, and the rotor blades 2 are made of engineering plastics, which are wear-resistant and corrosion-resistant, have good thermal stability, and are low in cost, and can meet the needs of transporting various strong chemical corrosive media.

[0021] Further, if Figures 1-3 As shown, in this embodiment, the rotor blade 2 is spiral, and the edge of the rotor blade 2 extends in a spiral shape along the circumferential direction of the rotor core 1, which reduces the disturbance of the medium by the rotor during rotation and largely avoids changes in the physical and chemical properties of the medium, meeting the requirements for transporting some oil products and chemical solvents; and can reduce the impact of the liquid on the pump body during transportation, thereby reducing the overall mechanical noise and vibration of the pump. The cross-section of the rotor blade 2 is streamlined to reduce fluid resistance.

[0022] Further, if Figures 1-3 As shown, in this embodiment, the number of rotor blades 2 is at least two, and they are evenly distributed on the circumference of the rotor core 1 .

[0023] Further, if Figures 1-3 As shown, in this embodiment, the rotor blades 2 are fixed to the rotor core 1 by bolts 3, which ensures connection strength and facilitates disassembly and replacement.

[0024] Further, if Figures 1-3 As shown, in this embodiment, the rotor core 1 has a penetrating central hole 11 , and the rotor core 1 is mounted on an external pump shaft through the central hole.

[0025] Above, refer to Figures 1-3 The spiral rotor according to the embodiment of the utility model is described, which can meet the needs of transporting various highly chemically corrosive media; the design of the spiral rotor reduces the disturbance of the rotor to the medium during rotation, and largely avoids changes in the physical and chemical properties of the medium, meeting the requirements of transporting some oil products and chemical solvents; and can reduce the impact of the liquid on the pump body during transportation, thereby reducing the overall mechanical noise and vibration of the pump.

[0026] It should be noted that, in this specification, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the elements.

[0027] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. After reading the above description, various modifications and alternatives to the present invention will be readily apparent to those skilled in the art. Therefore, the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A spiral rotor, characterized in that Contains: rotor core and rotor blades; The rotor blades are fixed to the rotor core; The rotor core is made of stainless steel, and the rotor blades are made of engineering plastic.

2. The helical rotor according to claim 1, wherein: The rotor blade is spiral-shaped, and the edge of the rotor blade extends in a spiral shape along the circumferential direction of the rotor core.

3. The helical rotor according to claim 1 or 2, characterized in that: The number of the rotor blades is at least two and they are evenly distributed on the circumference of the rotor core.

4. The helical rotor according to claim 1, wherein: The rotor blades are fixed to the rotor core by bolts.

5. The helical rotor according to claim 1, wherein: The rotor core has a penetrating central hole, and the rotor core is mounted on an external pump shaft through the central hole.

6. The helical rotor according to claim 1, wherein: The cross section of the rotor blade is streamlined.

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