High-precision gear pump

Abstract

The utility model relates to the technical field of gear pump design, and discloses a high-precision gear pump which comprises a gear pump body, a partition plate is fixedly connected to the inner wall of the gear pump body, a mounting plate is fixedly connected to the outer wall of the gear pump body, and a driving motor is fixedly connected to the outer wall of the mounting plate. The output end of the driving motor is fixedly connected with a first rotating rod, the outer wall of the first rotating rod is rotationally connected to the inner wall of the gear pump body, and the outer wall of the first rotating rod is fixedly connected with a first gear. According to the utility model, the limiting blocks are fixed in the first filter box and the second filter box and used for fixing the mounting frame, the filter screen is mounted in the mounting frame, water is filtered for the first time through the first filter box and is filtered for the second time through the second filter box, and the third filter box is fixed at the bottom end of the second drain pipe; and the third filter box also uses a mounting frame for mounting an internal limiting block to bear a filter screen so as to filter impurities in the discharged water.

Description

Technical Field

[0001] The utility model relates to the technical field of gear pump design, in particular to a high-precision gear pump. Background Art

[0002] A gear pump is an industrial device. It is a rotary pump that relies on the change and movement of the working volume formed between the pump cylinder and the meshing gears to transport liquid or increase its pressure. By using the meshing action between one or more pairs of gears, the liquid is transported from one area to another area.

[0003] However, the existing gear pumps often only intake water from one water inlet pipe and discharge water from one drain pipe, without filtering and purifying the water body. There is a problem that impurities in the water accumulate and adhere in the gear pump cavity or scale is generated. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a high-precision gear pump, aiming to improve the problem that the existing gear pumps often only intake water from one water inlet pipe and discharge water from one drain pipe, without filtering and purifying the water body, and there is a problem that impurities in the water accumulate and adhere in the gear pump cavity or scale is generated.

[0005] To achieve the above object, the utility model provides the following technical solution: A high-precision gear pump includes a gear pump main body. A partition is fixedly connected to the inner wall of the gear pump main body. A mounting plate is fixedly connected to the outer wall of the gear pump main body. A driving motor is fixedly connected to the outer wall of the mounting plate. A first rotating rod is fixedly connected to the output end of the driving motor. The outer wall of the first rotating rod is rotatably connected to the inner wall of the gear pump main body. A first gear is fixedly connected to the outer wall of the first rotating rod. A second gear is meshed with the outer wall of the first gear. A second rotating rod is fixedly connected to the inner wall of the second gear. The outer wall of the second rotating rod is rotatably connected to the inner wall of the partition. A first water conveying rotor is fixedly connected to the outer wall of the first rotating rod. A second water conveying rotor is fixedly connected to the outer wall of the second rotating rod. A water inlet pipe is installed on the outer wall of the gear pump main body. A first drain pipe is installed on the outer wall of the gear pump main body.

[0006] Preferably, a gearbox is installed on the outer wall of the driving motor. The outer wall of the first rotating rod is installed in the inner wall of the gearbox. The outer wall of the gearbox is fixedly connected to the outer wall of the gear pump main body.

[0007] Preferably, a first filter box is fixedly connected to one end of the outer wall of the water inlet pipe. A second filter box is fixedly connected to one end of the outer wall of the first drain pipe. Limit blocks are fixedly connected to the inner walls of the first filter box and the second filter box. An installation frame is arranged inside the first filter box and the second filter box. A filter screen is installed on the inner wall of the installation frame.

[0008] Preferably, a first rotating shaft is rotatably connected to the inner wall of the first filter tank, a first rotating plate is fixedly connected to the outer wall of the first rotating shaft, a second rotating shaft is rotatably connected to the inner wall of the second filter tank, and a second rotating plate is fixedly connected to the outer wall of the second rotating shaft.

[0009] Preferably, a first water isolation valve is fixedly connected to the inner wall of the first filter tank, and a second water isolation valve is fixedly connected to the inner wall of the second filter tank.

[0010] Preferably, a second drain pipe is installed on the top of the gear pump body.

[0011] Preferably, one end of the second drain pipe is fixedly connected to a third filter tank, the outer wall of the third filter tank is fixedly connected to the outer wall of the gear pump body, a limiting block is fixedly connected to the inner wall of the third filter tank, an installation frame is installed inside the third filter tank, a third rotating shaft is rotatably connected to the inner wall of the third filter tank, a third rotating plate is fixedly connected to the outer wall of the third rotating shaft, and a third water isolation valve is fixedly connected to the inner wall of the third filter tank.

[0012] The utility model has the following beneficial effects:

[0013] 1. In the utility model, limiting blocks are fixed in the first filter tank and the second filter tank to fix the installation frame, a filter net is installed in the installation frame, water is filtered once through the first filter tank and filtered twice through the second filter tank, a third filter tank is fixed at the bottom end of the second drain pipe, and the limiting blocks are also used in the third filter tank to install the internal installation frame to carry the filter net to filter out impurities in the water.

[0014] 2. In the utility model, a first rotating plate is connected through a first rotating shaft on the first filter tank, a second rotating plate is connected through a second rotating shaft on the second filter tank, and a third rotating plate connected through a third rotating shaft is provided in an openable manner to replace and clean the installation frame and the filter net in the first filter tank, the second filter tank and the third filter tank.

[0015] 3. In the utility model, by starting the first water isolation valve and the second water isolation valve, the first filter tank and the second filter tank are separated downward to respectively control the on-off of the water body passing through the first filter tank and the second filter tank. When the second water isolation valve is started to close the flow of the first drain pipe, the water body can flow out from the second drain pipe, which is convenient for changing the flow direction of the water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional view of a high-precision gear pump proposed by the utility model;

[0017] Figure 2 is a schematic diagram of the internal structure of the gear pump body of a high-precision gear pump proposed by the utility model;

[0018] Figure 3 This is the front elevation sectional view of a high-precision gear pump proposed by the present utility model.

[0019] Legend:

[0020] 1. Gear pump main body; 2. First filter box; 3. Water inlet pipe; 4. First rotating shaft; 5. First water isolation valve; 6. First rotating plate; 7. Third rotating plate; 8. Third water isolation valve; 9. Third rotating shaft; 10. Second drain pipe; 11. Third filter box; 12. Second water isolation valve; 13. Second rotating plate; 14. Second rotating shaft; 15. First drain pipe; 16. Driving motor; 17. Mounting plate; 18. Gearbox; 19. First rotating rod; 20. First water delivery rotor; 21. Second water delivery rotor; 22. Second rotating rod; 23. First gear; 24. Second gear; 25. Partition board; 26. Mounting frame; 27. Filter net. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the specification drawings 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. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0022] Refer to Figures 1 - 3 , an embodiment provided by the present utility model: The high-precision gear pump of this embodiment includes a gear pump main body 1. A partition board 25 is fixedly connected to the inner wall of the gear pump main body 1. A mounting plate 17 is fixedly connected to the outer wall of the gear pump main body 1. A driving motor 16 is fixedly connected to the outer wall of the mounting plate 17. The output end of the driving motor 16 is fixedly connected to a first rotating rod 19. The outer wall of the first rotating rod 19 is rotatably connected to the inner wall of the gear pump main body 1. A first gear 23 is fixedly connected to the outer wall of the first rotating rod 19. A second gear 24 is meshed and connected to the outer wall of the first gear 23. A second rotating rod 22 is fixedly connected to the inner wall of the second gear 24. The outer wall of the second rotating rod 22 is rotatably connected to the inner wall of the partition board 25. A first water delivery rotor 20 is fixedly connected to the outer wall of the first rotating rod 19. A second water delivery rotor 21 is fixedly connected to the outer wall of the second rotating rod 22. A water inlet pipe 3 is installed on the outer wall of the gear pump main body 1. A first drain pipe 15 is installed on the outer wall of the gear pump main body 1.

[0023] Inside the gear pump main body 1, a partition 25 is provided to separate two cavities. An external mounting plate 17 is installed to support the driving motor 16. Water is supplied into the gear pump main body 1 from the water inlet pipe 3. The driving motor 16 is started to drive the first rotating rod 19 to rotate, thereby driving the first gear 23 and the first water delivery rotor 20 to rotate. The first gear 23 drives the second gear 24 to rotate, and the second gear 24 drives the second rotating rod 22 to rotate, thereby driving the second water delivery rotor 21 to rotate. The first water delivery rotor 20 cooperates with the second water delivery rotor 21 to perform the water delivery work, and the water is drained from the first drain pipe 15.

[0024] A gearbox 18 is installed on the outer wall of the driving motor 16. The outer wall of the first rotating rod 19 is installed on the inner wall of the gearbox 18, and the outer wall of the gearbox 18 is fixedly connected to the outer wall of the gear pump main body 1.

[0025] The installed gearbox 18 is connected to the driving motor 16, so that the gearbox 18 adjusts the speed of the first rotating rod 19 driven by the driving motor 16, thereby driving the speeds of the adjusting gear and the rotor, which is beneficial to adjusting and changing the rotor speed and water delivery efficiency at different gears.

[0026] One end of the outer wall of the water inlet pipe 3 is fixedly connected to a first filter box 2. One end of the outer wall of the first drain pipe 15 is fixedly connected to a second filter box. Limiting blocks are fixedly connected to the inner walls of the first filter box 2 and the second filter box. An installation frame 26 is arranged inside the first filter box 2 and the second filter box, and a filter net 27 is installed on the inner wall of the installation frame 26.

[0027] The first filter box 2 is fixed between the water inlet pipe 3 and the gear pump main body 1, the second filter box is fixed between the first drain pipe 15 and the gear pump main body 1, limiting blocks are fixed in the first filter box 2 and the second filter box for fixing the installation frame 26, the filter net 27 is installed in the installation frame 26, and the water is filtered once through the first filter box 2 and filtered twice through the second filter box to filter out impurities in the water.

[0028] The inner wall of the first filter box 2 is rotatably connected to a first rotating shaft 4, and a first rotating plate 6 is fixedly connected to the outer wall of the first rotating shaft 4. The inner wall of the second filter box is rotatably connected to a second rotating shaft 14, and a second rotating plate 13 is fixedly connected to the outer wall of the second rotating shaft 14.

[0029] On the first filter box 2, the first rotating plate 6 is connected through the first rotating shaft 4, and on the second filter box, the second rotating plate 13 is connected through the second rotating shaft 14, which is set to be openable, facilitating the replacement and cleaning of the installation frame 26 and the filter net 27 inside the first filter box 2 and the second filter box.

[0030] A first water isolation valve 5 is fixedly connected to the inner wall of the first filter box 2, and a second water isolation valve 12 is fixedly connected to the inner wall of the second filter box.

[0031] A first water isolation valve 5 is fixed to the inner wall of the first filter tank 2, and a second water isolation valve 12 is fixed to the inner wall of the second filter tank. The first water isolation valve 5 and the second water isolation valve 12 are started to separate the first filter tank 2 and the second filter tank downward, respectively controlling the opening and closing of the water body passing through the first filter tank 2 and the second filter tank, which is beneficial to controlling the flow and closing of the water body.

[0032] A second drain pipe 10 is installed on the top of the gear pump body 1.

[0033] When the second water isolation valve 12 is started to close the flow of the first drain pipe 15, the water body can flow out from the second drain pipe 10, which is convenient to change the water flow direction.

[0034] One end of the second drain pipe 10 is fixedly connected to a third filter tank 11. The outer wall of the third filter tank 11 is fixedly connected to the outer wall of the gear pump body 1. A limiting block is fixedly connected to the inner wall of the third filter tank 11. An installation frame 26 is installed inside the third filter tank 11. A third rotating shaft 9 is rotatably connected to the inner wall of the third filter tank 11. A third rotating plate 7 is fixedly connected to the outer wall of the third rotating shaft 9. A third water isolation valve 8 is fixedly connected to the inner wall of the third filter tank 11.

[0035] A third filter tank 11 is fixed to the bottom end of the second drain pipe 10. The third filter tank 11 also uses the limiting block to install the installation frame 26 inside to carry the filter net 27 to filter the passing water body. Through the third rotating plate 7 connected by the third rotating shaft 9, when setting the switch to control the third filter tank 11, it is convenient to replace and clean the installation frame 26 and the filter net 27 inside the third filter tank 11. At the same time, a third water isolation valve 8 is set to control the opening and closing of the second drain pipe 10.

[0036] Working principle: A partition 25 is arranged inside the main body 1 of the gear pump to separate two cavities. An external mounting plate 17 is installed to support the driving motor 16. Water is conveyed into the main body 1 of the gear pump from the water inlet pipe 3. The driving motor 16 is started to drive the first rotating rod 19 to rotate, thereby driving the first gear 23 and the first water conveying rotor 20 to rotate. The first gear 23 drives the second gear 24 to rotate, and the second gear 24 drives the second rotating rod 22 to rotate, thereby driving the second water conveying rotor 21 to rotate. The first water conveying rotor 20 cooperates with the second water conveying rotor 21 to conduct the water conveying work, and water is discharged from the first drain pipe 15. The transmission 18 is connected to the driving motor 16, so that the transmission 18 adjusts the speed of the first rotating rod 19 driven by the driving motor 16, thereby driving the speeds of the adjusting gear and the rotor to adjust and change the rotor speed and water conveying efficiency in different gears. A first filter box 2 is fixed between the water inlet pipe 3 and the main body 1 of the gear pump, and a second filter box is fixed between the first drain pipe 15 and the main body 1 of the gear pump. Limit blocks are fixed in the first filter box 2 and the second filter box to fix the mounting frame 26. A filter net 27 is installed in the mounting frame 26. Water is filtered once through the first filter box 2 and filtered twice through the second filter box. A third filter box 11 is fixed at the bottom end of the second drain pipe 10. The third filter box 11 also uses limit blocks to install the internal mounting frame 26 to carry the filter net 27 to filter out impurities in the water. The first filter box 2 is connected to the first rotating plate 6 through the first rotating shaft 4, the second filter box is connected to the second rotating plate 13 through the second rotating shaft 14, and the third rotating plate 7 connected through the third rotating shaft 9 is set to be openable to replace and clean the mounting frame 26 and the filter net 27 in the first filter box 2, the second filter box and the third filter box 11. The first water isolation valve 5 and the second water isolation valve 12 are started to separate the first filter box 2 and the second filter box downward, respectively controlling the switches for the water body to pass through the first filter box 2 and the second filter box. When the second water isolation valve 12 is started to close the flow of the first drain pipe 15, the water body can flow out from the second drain pipe 10, facilitating the change of the water body flow direction.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-precision gear pump, comprising a gear pump body (1), characterized in that: The inner wall of the gear pump body (1) is fixedly connected to a partition plate (25), the outer wall of the gear pump body (1) is fixedly connected to a mounting plate (17), the outer wall of the mounting plate (17) is fixedly connected to a drive motor (16), the output end of the drive motor (16) is fixedly connected to a first rotating rod (19), the outer wall of the first rotating rod (19) is rotatably connected to the inner wall of the gear pump body (1), the outer wall of the first rotating rod (19) is fixedly connected to a first gear (23), and the outer wall of the first gear (23) A second gear (24) is meshedly connected, the inner wall of the second gear (24) is fixedly connected to a second rotating rod (22), the outer wall of the second rotating rod (22) is rotatably connected to the inner wall of the partition (25), the outer wall of the first rotating rod (19) is fixedly connected to a first water delivery rotor (20), the outer wall of the second rotating rod (22) is fixedly connected to a second water delivery rotor (21), the outer wall of the gear pump body (1) is installed with a water inlet pipe (3), and the outer wall of the gear pump body (1) is installed with a first drain pipe (15).

2. A high-precision gear pump according to claim 1, characterized in that: A gearbox (18) is mounted on the outer wall of the driving motor (16), the outer wall of the first rotating rod (19) is mounted on the inner wall of the gearbox (18), and the outer wall of the gearbox (18) is fixedly connected to the outer wall of the gear pump body (1).

3. A high-precision gear pump according to claim 1, characterized in that: One end of the outer wall of the water inlet pipe (3) is fixedly connected to a first filter box (2), one end of the outer wall of the first drain pipe (15) is fixedly connected to a second filter box, the inner walls of the first filter box (2) and the second filter box are fixedly connected to a limiting block, the first filter box (2) and the second filter box are provided with a mounting frame (26) inside, and a filter screen (27) is installed on the inner wall of the mounting frame (26).

4. A high-precision gear pump according to claim 3, characterized in that: The inner wall of the first filter box (2) is rotatably connected to a first rotating shaft (4), the outer wall of the first rotating shaft (4) is fixedly connected to a first rotating plate (6), the inner wall of the second filter box is rotatably connected to a second rotating shaft (14), and the outer wall of the second rotating shaft (14) is fixedly connected to a second rotating plate (13).

5. A high-precision gear pump according to claim 3, characterized in that: A first water-isolating valve (5) is fixedly connected to the inner wall of the first filter box (2), and a second water-isolating valve (12) is fixedly connected to the inner wall of the second filter box.

6. A high-precision gear pump according to claim 1, characterized in that: A second drainage pipe (10) is installed on the top of the gear pump body (1).

7. A high-precision gear pump according to claim 6, characterized in that: One end of the second drain pipe (10) is fixedly connected to a third filter box (11), the outer wall of the third filter box (11) is fixedly connected to the outer wall of the gear pump body (1), the inner wall of the third filter box (11) is fixedly connected to a limit block, an installation frame (26) is installed inside the third filter box (11), the inner wall of the third filter box (11) is rotatably connected to a third rotating shaft (9), the outer wall of the third rotating shaft (9) is fixedly connected to a third rotating plate (7), and the inner wall of the third filter box (11) is fixedly connected to a third water-isolating valve (8).

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