Dry-rotation-resistant rotor pump

Abstract

The utility model discloses a dry-rotation-resistant rotor pump, which relates to the technical field of rotor pumps and comprises a fixing frame, a driving seat is arranged above the fixing frame, a pump body is mounted on the end face of one side of the driving seat, an oil filling port is formed in the top of the pump body, a pump cover is mounted on the end face of one side of the pump body, and a water inlet is formed in the end face of the other side of the pump body. A lining plate is installed on the inner wall of the pump body, rotors are arranged in the lining plate, the number of the rotors is two, rotating shafts are arranged in the rotors, liquid level sensors are installed on the upper end face and the lower end face in the lining plate, oil injection rollers are arranged on the end faces of the two sides of the lining plate, and the number of the oil injection rollers is six. According to the scheme, the problems that in the prior art, a rotor pump takes away heat through dynamic fluid conveyed by a rotor, once the fluid is pumped out or cannot be connected, the heat can be taken away due to lack of flowing liquid, internal parts can be burnt out by heat accumulated through friction, and therefore a pump body is damaged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor pumps, and particularly relates to a dry-running resistant rotor pump. Background Technique

[0002] A rotor pump refers to a pump that changes the working volume through the relative movement between the rotor and the pump body, thereby increasing the energy of the liquid. A rotor pump is a rotary positive-displacement pump with a positive displacement property, and its flow rate does not change with the back pressure. The occasions where a rotor pump is preferably selected include: viscous liquids, occasions that require metering, occasions that require self-priming, occasions containing gas, small-flow occasions, pumps that require no shear on the medium, pumps that require reverse rotation, high-pressure occasions, etc.

[0003] For example, the Chinese authorized patent (a rotor pump) with the publication number CN208221081U: The pump body is provided with a liquid inlet, a liquid outlet, and a rotating shaft through hole. The connecting shaft passes through the rotating shaft through hole, and the driving rotor and the driven rotor are fixed through a fixing pin. The driving rotor and the driven rotor are arranged between the liquid inlet and the liquid outlet in the pump body, and the driving rotor and the driven rotor mesh with each other; the driving rotor or the driven rotor is composed of multiple linear rotors; the multiple linear rotors include a linear rotor one and a linear rotor two, and the thicknesses of the linear rotor one and the linear rotor two are different. The thickness of the linear rotor one is less than the thickness of the linear rotor two. Through the design scheme of flexible assembly and maintenance of multiple linear rotors, the pain points of the application limitations and high use and maintenance costs of traditional rotor pumps are solved, and the labor and equipment expenditures are saved.

[0004] However, the rotor pump in the above-mentioned prior art entirely relies on the dynamic fluid transported by the rotor to take away these heats. Once the fluid is pumped dry or unavailable, due to the lack of flowing liquid to take away the heat, the internal parts will be burned out by the heat accumulated by friction, resulting in the problem of pump body damage; therefore, it does not meet the existing requirements, and for this reason, we propose a dry-running resistant rotor pump. Content of the Utility Model

[0005] The purpose of the utility model is to provide a dry-running resistant rotor pump to solve the problem in the prior art described in the above background technique that the rotor pump in the prior art entirely relies on the dynamic fluid transported by the rotor to take away these heats. Once the fluid is pumped dry or unavailable, due to the lack of flowing liquid to take away the heat, the internal parts will be burned out by the heat accumulated by friction, resulting in the problem of pump body damage.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A dry-running resistant rotor pump, comprising a fixing frame, above which a driving seat is provided. On one side end face of the driving seat, a pump body is installed. At the top of the pump body, an oil injection port is provided. On one side end face of the pump body, a pump cover is installed. Inside the inner wall of the pump body, a lining plate is installed. Inside the lining plate, a rotor is provided. There are two rotors. Inside the rotor, a rotating shaft is provided. On the upper and lower end faces inside the lining plate, liquid level sensors are installed. On both side end faces of the lining plate, oil injection rollers are provided. There are six oil injection rollers.

[0007] Preferably, on the front and rear end faces of the fixing frame, fixing plates are provided, and fixing holes are provided on the fixing plates.

[0008] Preferably, at the bottom of the front and rear end faces of the driving seat, mounting plates are provided, and lifting lugs are installed on both sides of the upper surface of the driving seat.

[0009] Preferably, on the other side end face of the driving seat, a fixing seat is provided, and a motor is provided on one side of the fixing seat.

[0010] Preferably, on the front and rear end faces of the pump body, first mounting seats are provided, and there are two first mounting seats.

[0011] Preferably, on the first mounting seat, a liquid inlet and a liquid outlet are provided.

[0012] Preferably, on one side end face of the liquid inlet and the liquid outlet, second mounting seats are provided, and mounting holes are provided inside the second mounting seats.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. In the present utility model, by providing a lining plate on the inner wall of the pump body, the rotor is arranged inside the lining plate, and liquid level sensors and oil injection rollers are arranged on the inner wall of the lining plate. Lubricating oil is injected into the oil passage inside the lining plate through the oil injection port. When the liquid level sensors at the upper and lower ends can no longer sense liquid, the oil injection rollers will be driven to rotate, so that there is lubricating oil on the inner wall of the lining plate, enabling the lubricating oil to circulate inside the pump body even when the rotor is dry-running, thereby protecting the rotating components inside the pump body and reducing wear. This solves the problem in the prior art that the rotor pump entirely relies on the dynamic fluid transported by the rotor to carry away these heats. Once the fluid is pumped dry or interrupted, due to the lack of flowing liquid to carry away the heat, the internal parts will be burned out by the heat accumulated from friction, resulting in damage to the pump body.

[0015] 2. By respectively arranging a first mounting seat and a second mounting seat on both end faces of the liquid inlet and the liquid outlet, arranging a fixing seat on one end face of the motor, and arranging mounting plates at the front and rear ends of the bottom of the driving seat, the liquid inlet and the liquid outlet can be disassembled and assembled with the pump body, the motor can be disassembled and assembled with the driving seat, and the driving seat can be disassembled and assembled with the fixing frame, which facilitates the overall disassembly and assembly of the device. At the same time, the pump cover of the pump body is arranged on its front end face, which is convenient for operating the inside of the pump body during disassembly. Brief Description of the Drawings

[0016] Figure 1 Schematic diagram of the overall structure of the rotor pump of the present utility model;

[0017] Figure 2 Schematic diagram of the back structure of the rotor pump of the present utility model;

[0018] Figure 3 Schematic diagram of the enlarged partial structure inside the pump body of the present utility model;

[0019] Figure 4 Schematic diagram of the enlarged partial structure inside the lining plate of the present utility model;

[0020] In the figure: 1. Fixing frame; 2. Fixing plate; 3. Fixing hole; 4. Driving seat; 5. Motor; 6. Lifting lug; 7. Mounting plate; 8. Pump body; 9. Oil filling port; 10. Pump cover; 11. Liquid inlet; 12. Liquid outlet; 13. First mounting seat; 14. Second mounting seat; 15. Fixing seat; 16. Lining plate; 17. Liquid level sensor; 18. Rotor; 19. Rotating shaft; 20. Oil filling roller. Detailed Description of the Preferred Embodiment

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Please refer to Figures 1-4, an embodiment provided by the present utility model: a dry-running resistant rotor pump, including a fixing frame 1, a driving seat 4 is arranged above the fixing frame 1, a pump body 8 is installed on one side end face of the driving seat 4, an oil injection port 9 is arranged at the top of the pump body 8, a pump cover 10 is installed on one side end face of the pump body 8, a lining plate 16 is installed on the inner wall of the pump body 8, a rotor 18 is arranged inside the lining plate 16, there are two rotors 18, a rotating shaft 19 is arranged inside the rotor 18, liquid level sensors 17 are installed on the upper and lower end faces inside the lining plate 16, oil injection rollers 20 are arranged on both side end faces of the lining plate 16, and there are six oil injection rollers 20. During use, since the lining plate 16 is arranged on the inner wall of the pump body 8, the rotor 18 is arranged inside the lining plate 16, and the liquid level sensors 17 and the oil injection rollers 20 are arranged on the inner wall of the lining plate 16, lubricating oil is injected into the oil passage inside the lining plate 16 through the oil injection port 9. When the liquid level sensors 17 at the upper and lower ends cannot sense liquid, the oil injection rollers 20 will be driven to rotate, so that there is lubricating oil on the inner wall of the lining plate 16, enabling the lubricating oil to circulate inside the pump body 8 even when the rotor 18 is dry-running, thereby protecting the operating components inside the pump body 8, reducing wear, and solving the problem in the prior art that the rotor pump entirely relies on the dynamic fluid conveyed by the rotor 18 to carry away these heats. Once the fluid is pumped dry or cannot be connected, due to the lack of flowing liquid to carry away the heat, the internal parts will be burned out by the heat accumulated by friction, resulting in the damage of the pump body 8. And also, first mounting seats 13 and second mounting seats 14 are respectively arranged on both side end faces of the liquid inlet 11 and the liquid outlet 12, a fixing seat 15 is arranged on one side end face of the motor 5, and mounting plates 7 are arranged at the front and rear ends of the bottom of the driving seat 4, so that the liquid inlet 11 and the liquid outlet 12 can be disassembled and assembled with the pump body 8, the motor 5 can be disassembled and assembled with the driving seat 4, and the driving seat 4 can be disassembled and assembled with the fixing frame 1, facilitating the overall disassembly and assembly of the device. At the same time, the pump cover 10 of the pump body 8 is arranged on its front end face, facilitating the operation of the inside of the pump body 8 during disassembly.

[0023] Please refer to Figures 1-4 , fixing plates 2 are arranged on the front and rear end faces of the fixing frame 1, and fixing holes 3 are arranged on the fixing plates 2.

[0024] Please refer to Figures 1-4 , mounting plates 7 are arranged at the bottoms of the front and rear end faces of the driving seat 4, and lifting lugs 6 are installed on both sides of the upper surface of the driving seat 4.

[0025] Please refer to Figures 1-4 , a fixing seat 15 is arranged on the other side end face of the driving seat 4, and a motor 5 is arranged on one side of the fixing seat 15, so that the liquid inlet 11 and the liquid outlet 12 can be disassembled and assembled with the pump body 8, the motor 5 can be disassembled and assembled with the driving seat 4, and the driving seat 4 can be disassembled and assembled with the fixing frame 1, facilitating the overall disassembly and assembly of the device. At the same time, the pump cover 10 of the pump body 8 is arranged on its front end face, facilitating the operation of the inside of the pump body 8 during disassembly.

[0026] Please refer to Figures 1-4, first mounting seats 13 are provided on both the front and rear end faces of the pump body 8. There are two first mounting seats 13, and a liquid inlet 11 and a liquid outlet 12 are provided on the first mounting seats 13.

[0027] Please refer to Figures 1-4 , second mounting seats 14 are provided on one side end faces of the liquid inlet 11 and the liquid outlet 12, and mounting holes are provided inside the second mounting seats 14.

[0028] Working principle: During use, since a lining plate 16 is provided on the inner wall of the pump body 8, a rotor 18 is arranged inside the lining plate 16, a liquid level sensor 17 and an oil injection roller 20 are provided on the inner wall of the lining plate 16, lubricating oil is injected into the oil passage inside the lining plate 16 through an oil injection port 9. When the liquid level sensors 17 at the upper and lower ends cannot sense liquid, the oil injection roller 20 will be driven to rotate, so that there is lubricating oil on the inner wall of the lining plate 16, enabling the lubricating oil to circulate inside the pump body 8 even when the rotor 18 is dry-running. Thus, the rotating components inside the pump body 8 are protected and wear is reduced. This solves the problem in the prior art that the rotor pump entirely relies on the dynamic fluid conveyed by the rotor 18 to carry away these heats. Once the fluid is pumped dry or cannot be connected, due to the lack of flowing liquid to carry away the heat, the internal parts will be burned out by the heat accumulated by friction, resulting in the damage of the pump body 8. Moreover, by respectively providing the first mounting seat 13 and the second mounting seat 14 on both side end faces of the liquid inlet 11 and the liquid outlet 12, a fixing seat 15 is provided on one side end face of the motor 5, and mounting plates 7 are provided at the front and rear ends of the bottom of the driving seat 4, the liquid inlet 11 and the liquid outlet 12 can be disassembled and assembled with the pump body 8, the motor 5 can be disassembled and assembled with the driving seat 4, and the driving seat 4 can be disassembled and assembled with the fixing frame 1, facilitating the overall disassembly and assembly of the device. At the same time, the pump cover 10 of the pump body 8 is provided on its front end face, facilitating the operation of the inside of the pump body 8 during disassembly.

[0029] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A dry-running resistant rotor pump, comprising a fixing frame (1), characterized in that: A driving seat (4) is arranged above the fixing frame (1), a pump body (8) is installed on one end face of the driving seat (4), an oil filling port (9) is arranged on the top of the pump body (8), a pump cover (10) is installed on one end face of the pump body (8), a lining plate (16) is installed on the inner wall of the pump body (8), a rotor (18) is arranged inside the lining plate (16), two rotors (18) are installed, a rotating shaft (19) is arranged inside the rotor (18), liquid level sensors (17) are installed on the upper and lower end faces inside the lining plate (16), and oil filling rollers (20) are arranged on both side end faces of the lining plate (16), and six oil filling rollers (20) are arranged.

2. A dry-running resistant rotor pump according to claim 1, characterized in that: The front and rear end surfaces of the fixing frame (1) are both provided with fixing plates (2), and the fixing plates (2) are provided with fixing holes (3).

3. A dry-running resistant rotor pump according to claim 1, characterized in that: The bottoms of the front and rear end surfaces of the drive seat (4) are both provided with mounting plates (7), and both sides of the upper surface of the drive seat (4) are provided with lifting ears (6).

4. A dry-running resistant rotor pump according to claim 1, characterized in that: A fixing seat (15) is provided on the other end surface of the driving seat (4), and a motor (5) is provided on one side of the fixing seat (15).

5. A dry-running resistant rotor pump according to claim 1, characterized in that: The front and rear end surfaces of the pump body (8) are both provided with first mounting seats (13), and two first mounting seats (13) are provided.

6. A dry-running resistant rotor pump according to claim 5, characterized in that: The first mounting seat (13) is provided with a liquid inlet (11) and a liquid outlet (12).

7. A dry-running resistant rotor pump according to claim 6, characterized in that: A second mounting seat (14) is provided on one side end surface of the liquid inlet (11) and the liquid outlet (12), and a mounting hole is provided inside the second mounting seat (14).

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