Servo coaxial double-rotor pump

Abstract

The utility model discloses a servo coaxial double-rotor pump which comprises a cylindrical pump shell, the pump shell is provided with an input pipe and an output pipe which are adjacent to each other, a first fan-shaped piston and a second fan-shaped piston which rotate coaxially are arranged in the pump shell, and the first fan-shaped piston is in transmission connection with a first external servo motor through a first rotating shaft. And the fan-shaped piston II is in transmission connection with an external servo motor II through a rotating shaft II. The first fan-shaped piston and the second fan-shaped piston can cover the input pipe and the output pipe. The first fan-shaped piston and the second fan-shaped piston are the same in length and attached to the inner wall of the pump shell. The dry type conveying device has the advantages that materials are sucked in a vacuumizing suction mode, meanwhile, the materials are stably pushed and discharged, the materials are not stirred and cut, active pressing on the materials is avoided, damage to the materials is avoided, the first fan-shaped piston and the second fan-shaped piston do not need lubricating oil, and dry type conveying is achieved.

Description

Technical Field

[0001] This utility model relates to the field of servo coaxial dual rotor pump technology, specifically to a servo coaxial dual rotor pump. Background Technology

[0002] In the existing technology, most liquid or gas transfer pumps have blade-shaped impellers, such as common water pumps. They rely on the rotation of the impellers to actively push and transport materials. During the rotation of the impellers, there is obvious agitation and cutting of the materials, which constitutes active pressure on the materials and can easily cause damage. This makes them unsuitable for transporting certain special liquids or gases. In addition, most existing pump rotors require lubricating oil, which is inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide a servo coaxial dual rotor pump to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model discloses a servo coaxial dual rotor pump, including a cylindrical pump casing. The pump casing is provided with adjacent input pipes and output pipes. Inside the pump casing are two sector pistons that rotate coaxially. The sector piston one is connected to an external servo motor one via a rotating shaft one, and the sector piston two is connected to an external servo motor two via a rotating shaft two.

[0006] As an improvement, both the first and second sector pistons can cover the input and output pipes.

[0007] As an improvement, the first and second sector pistons are of the same length and fit snugly against the inner wall of the pump casing.

[0008] The advantages of this utility model compared with the prior art are: it uses vacuum suction to suck in materials and pushes them out smoothly without agitating or cutting them, thus avoiding active pressure on the materials and preventing material damage; the sector piston one and sector piston two do not require lubricating oil, thus achieving dry conveying. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings listed below are only some structural schematic diagrams of this utility model, and not all of them.

[0010] Figure 1 This is a schematic diagram of the structure of a servo coaxial dual rotor pump according to this utility model.

[0011] Figure 2This is a top view of a servo coaxial dual rotor pump according to this utility model.

[0012] Figure 3 This is a cross-sectional view of a servo coaxial dual rotor pump according to this utility model. Figure 1 .

[0013] Figure 4 This is a diagram showing the separated state of sector piston one and sector piston two of a servo coaxial dual rotor pump according to this utility model.

[0014] Figure 5 This is a cross-sectional view of a servo coaxial dual rotor pump according to this utility model. Figure 2 .

[0015] Figure 6 This is a cross-sectional view of a servo coaxial dual rotor pump according to this utility model. Figure 3 .

[0016] Figure 7 This is a cross-sectional view of a servo coaxial dual rotor pump according to this utility model. Figure 4 .

[0017] Figure label:

[0018] Pump casing 1; Inlet pipe 2; Outlet pipe 3; Sector piston 1 4; Sector piston 2 5; Rotary shaft 1 6; Servo motor 1 7; Rotary shaft 2 8; Servo motor 2 9. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of the embodiments of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance. The use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be perfectly horizontal, but can be slightly tilted.

[0022] In the description of the embodiments of this utility model, the terms "multiple" or "several" refer to at least two.

[0023] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] This embodiment is combined with the appendix Figures 1 to 7 This paper provides a detailed description of a servo coaxial twin rotor pump.

[0025] This embodiment discloses a servo coaxial dual rotor pump, including a cylindrical pump casing 1. The pump casing 1 is provided with adjacent input pipes 2 and output pipes 3. Inside the pump casing 1 are two sector pistons, a first sector piston 4 and a second sector piston 5, which rotate coaxially. The first sector piston 4 is connected to an external servo motor 7 via a rotating shaft 6, and the second sector piston 5 is connected to an external servo motor 9 via a rotating shaft 8.

[0026] Both the sector piston 4 and the sector piston 5 can cover the input pipe 2 and the output pipe 3.

[0027] The sector piston 4 and sector piston 5 are of the same length and fit against the inner wall of the pump housing 1.

[0028] In practical implementation, input pipe 2 is connected to the feed end, output pipe 3 is connected to the discharge end, servo motor 7 drives sector piston 4 to rotate, servo motor 9 drives sector piston 5 to rotate, sector piston 4 and sector piston 5 rotate in the same direction, servo motor 7 and servo motor 9 are connected to the controller to control their speed.

[0029] In the initial state, such as Figure 3 Sector-shaped pistons 4 and 5 respectively cover the input pipe 2 and the output pipe 3. Then, sector-shaped piston 4 rotates rapidly counterclockwise, while sector-shaped piston 5 rotates slowly counterclockwise. At this time, the input pipe 2 is opened, as... Figure 5 Simultaneously, a negative pressure suction space is formed between sector piston 4 and sector piston 5, gradually expanding to draw liquid or gas from the inlet pipe 2 until... Figure 6 At this moment, sector piston 2 (5) covers input pipe 2, and sector piston 4 (4) covers output pipe 3. A momentary closed storage space is formed between sector piston 2 (5) and sector piston 4 (4). The piston continues to rotate counterclockwise (sector piston 4 rotates slowly, sector piston 2 (5) rotates quickly), as... Figure 7 When input pipe 2 and output pipe 3 open simultaneously, a negative pressure suction space is formed between the left side of sector piston 2 5 and sector piston 1 4, gradually expanding to draw liquid or gas from input pipe 2. Simultaneously, the liquid or gas stored on the right side of sector piston 2 5 is gradually discharged from output pipe 3. The process continues to rotate counterclockwise until... Figure 3 The sector piston 4 and sector piston 5 cover the input pipe 2 and output pipe 3 respectively. Liquid or gas is stored between sector piston 4 and sector piston 5. When the piston continues to rotate, it is discharged. This cycle of intake and discharge is used to transport liquid or gas.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the actual scope of protection is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this invention should be included within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the scope of the claims.

Claims

1. A servo coaxial twin-rotor pump, characterized by, The utility model provides a kind of pump, including cylindrical pump shell (1), the pump shell (1) is equipped with adjacent input pipe (2), output pipe (3), the pump shell (1) is equipped with same axis rotation sector piston one (4), sector piston two (5) in it, the sector piston one (4) is connected with outside servo motor one (7) drive by pivot one (6), and the sector piston two (5) is connected with outside servo motor two (9) drive by pivot two (8).

2. A servo in-line double-rotor pump according to claim 1, characterized in that, The sector piston one (4) and the sector piston two (5) can cover the input pipe (2) and the output pipe (3).

3. A servo in-line double rotor pump according to claim 1, characterized in that The sector piston one (4) and the sector piston two (5) have the same length and are attached to the inner wall of the pump shell (1).

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