Full-meshing rotor profile Roots blower

Abstract

The utility model provides a full-meshing rotor profile Roots blower which comprises a driving motor and a Roots blower body, a fixed shell is fixedly arranged on the Roots blower body, a rotating shaft is rotatably arranged in the fixed shell, a driving shaft is fixedly arranged on one side of the driving motor, and a rotating shaft is rotatably arranged in the rotating shaft. One side of the rotating shaft penetrates through the fixed shell and is rotationally connected with the driving shaft through a transmission belt, a rotating gear is fixedly arranged on one side of the rotating shaft, a transmission gear is arranged on one side of the rotating gear, the rotating gear and the transmission gear are meshed with each other, and a transmission shaft is fixedly connected to one side of the transmission gear; through the arrangement of the partition plate, the moving plate and the one-way valve, the moving plate can be driven under the action of the electric push rod, so that lubricating oil can enter the gear box from the oil inlet to lubricate a gear, and meanwhile, a liquid level detector can control opening and closing of the electric telescopic rod according to the liquid level of the lubricating oil in the gear box; therefore, the function of automatically adding lubricating oil is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of Roots blowers, in particular to a fully meshed rotor-type Roots blower. Background Art

[0002] Roots blower is a positive displacement blower, with impeller end face, front and rear end covers of the blower. The principle is to use two blade-shaped rotors to make relative motion in the cylinder to compress and transport gas. This blower has a simple structure and is easy to manufacture. It is widely used in aquaculture oxygenation, sewage treatment aeration, cement transportation, and is more suitable for gas transportation and pressurization systems in low-pressure occasions. It can also be used as a vacuum pump, etc.

[0003] Publication number "CN218953558U" provides a three-blade Roots blower, including a blower housing, a rotor installed inside the blower housing, and an air inlet arranged above the blower housing, wherein an arc-shaped tough steel wire filter is fixedly connected to the inner lower end of the air inlet, and scrapers are installed on both sides of the lower surface of the tough steel wire filter, and a pulling assembly capable of pulling up the tough steel wire filter is installed on the air inlet. The utility model is provided with a tough steel wire filter, and a pulling assembly is provided for the tough steel wire filter. When the tough steel wire filter is pulled upward by the pulling assembly, the tough steel wire filter can continuously filter impurities in the air. When the rotor end face needs to be cleaned, the pulling assembly no longer pulls the tough steel wire filter, so that the scraper can be close to the rotor, which is convenient for cleaning the rotor, so as to avoid excessive wear between the impurities on the rotor end face and the blower housing, thereby causing damage to the rotor and wasting motor energy.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] During the use of the above-mentioned three-leaf Roots blower, although the impurities in the air can be filtered through the tough filter and the rotor end face can be cleaned, for the gears that are constantly rotating, long-term engagement and rotation can easily lead to gear wear, thereby reducing the gear meshing transmission efficiency and the rotor rotation efficiency, ultimately resulting in a reduction in the air volume of the three-leaf Roots blower, affecting work efficiency. Utility Model Content

[0006] The utility model aims to provide a fully meshed rotor profile Roots blower to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A fully meshed rotor type Roots blower, comprising a driving motor and a Roots blower body, wherein a fixed housing is fixedly arranged on the Roots blower body, a rotating shaft is rotatably arranged in the fixed housing, a driving shaft is fixedly arranged on one side of the driving motor, one side of the rotating shaft passes through the fixed housing and is rotatably connected to the driving shaft through a transmission belt, a rotating gear is fixedly arranged on one side of the rotating shaft, a transmission gear is arranged on one side of the rotating gear, the rotating gear and the transmission gear are meshed with each other, a transmission shaft is fixedly connected on one side of the transmission gear, and a rotating impeller is fixedly arranged on both the transmission shaft and the rotating shaft;

[0009] A lubrication assembly, which is arranged on the fixed housing and is used to add lubricating oil to the rotating gear and the transmission gear;

[0010] A filter assembly is arranged on the fixed housing and is used for filtering impurities in the air.

[0011] Preferably, the lubrication assembly includes a gear box fixedly arranged on one side of a fixed shell, a transmission gear and a rotating gear are rotatably arranged in the gear box, an oil inlet is opened on the inner wall of the gear box, an oil storage tank is fixedly arranged on one side of the gear box, an oil outlet is opened in the oil storage tank, a partition plate is fixedly arranged in the oil storage tank, a movable plate is movably arranged in the oil storage tank, a plurality of one-way valves are fixedly arranged on the movable plate and the partition plate, a connecting rod is fixedly arranged on the movable plate, one side of the connecting rod passes through the oil storage tank and is fixedly connected to an electric telescopic rod, the electric telescopic rod is fixedly arranged on a fixed bracket, and the fixed bracket is fixedly arranged on the fixed shell.

[0012] Preferably, a liquid level detector is fixedly arranged at the bottom of the gear box, and the liquid level detector is electrically connected to the electric telescopic rod.

[0013] Preferably, the filter assembly includes an air inlet and an air outlet fixedly arranged on a fixed shell, the air inlet and the air outlet are both provided with filter screens, a sealing plate is fixedly arranged on one side of the filter screen, and the sealing plate is bolted to the air inlet and the air outlet.

[0014] Preferably, a replacement groove is provided on the air inlet and the air outlet, and a sealing plate is bolted in the replacement groove.

[0015] Preferably, the oil inlet and the oil outlet are arranged at corresponding positions, and a connecting pipe is fixedly arranged at the bottom of the oil storage tank.

[0016] Preferably, a soundproof shell is fixedly wrapped outside the fixed shell.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model provides a partition plate, a movable plate and a one-way valve, and can drive the movable plate under the action of the electric push rod so that the lubricating oil can enter the gear box from the oil inlet to lubricate the gear. At the same time, the liquid level detector can control the switch of the electric telescopic rod according to the level of the lubricating oil in the gear box, thereby realizing the function of automatically adding lubricating oil.

[0019] 2. This utility model can filter out most of the impurities in the air by setting filters at the air inlet and outlet, so as to make the Roots blower work more efficiently. When the filter needs to be replaced, the new filter can be installed in the replacement slot, and then the old filter can be removed, thereby improving the practicality of the device and allowing the Roots blower to always maintain the filtering function. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of the rotating impeller structure of the utility model;

[0023] Figure 4 It is a three-dimensional schematic diagram of the filter assembly structure of the utility model;

[0024] Figure 5 It is a three-dimensional schematic diagram of the lubrication component structure of the utility model;

[0025] Figure 6 It is a three-dimensional schematic diagram of the oil storage tank structure of the utility model.

[0026] In the figure: 1. driving motor; 2. Roots blower body; 3. fixed housing; 4. rotating shaft; 5. driving shaft; 6. transmission belt; 7. rotating gear; 8. transmission gear; 9. transmission shaft; 10. rotating impeller; 11. gear box; 12. oil inlet; 13. oil storage tank; 14. oil outlet; 15. partition plate; 16. movable plate; 17. one-way valve; 18. connecting rod; 19. electric telescopic rod; 20. fixed bracket; 21. liquid level detector; 22. air inlet; 23. air outlet; 24. filter; 25. sealing plate; 26. replacement slot; 27. connecting pipe; 28. sound insulation housing. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-6 , the utility model provides a technical solution: Example

[0029] A fully meshed rotor type Roots blower, comprising a driving motor 1 and a Roots blower body 2, a fixed housing 3 is fixedly arranged on the Roots blower body 2, a sound insulation housing 28 is fixedly wrapped outside the fixed housing 3, a rotating shaft 4 is rotatably arranged in the fixed housing 3, a driving shaft 5 is fixedly arranged on one side of the driving motor 1, one side of the rotating shaft 4 passes through the fixed housing 3 and is rotatably connected with the driving shaft 5 through a transmission belt 6, a rotating gear 7 is fixedly arranged on one side of the rotating shaft 4, a transmission gear 8 is arranged on one side of the rotating gear 7, the rotating gear 7 and the transmission gear 8 are meshed with each other, a transmission shaft 9 is fixedly connected on one side of the transmission gear 8, and a rotating impeller 10 is fixedly arranged on both the transmission shaft 9 and the rotating shaft 4;

[0030] In this embodiment, the driving motor 1 can drive the driving shaft 5 to rotate, and the driving shaft 5 can drive the rotating shaft 4 to rotate through the transmission belt 6. When the rotating shaft 4 rotates, it will drive the rotating gear 7 on one side to rotate. The rotating gear 7 is meshed with the transmission gear 8, so the transmission gear 8 will also rotate, thereby driving the transmission shaft 9 to rotate. The rotating shaft 4 and the transmission shaft 9 are provided with rotating impellers 10. The two rotating impellers 10 rotate synchronously relative to each other. The rotation of the rotating impellers 10 is used to compress the air inside the fixed shell 3, so that the air is discharged from the air outlet 23. At the same time, the air pressure in the fixed shell 3 is reduced, so that the external air enters through the air inlet 22. The soundproof shell 28 can block the noise generated by the Roots blower body 2 during operation to a certain extent;

[0031] A lubrication assembly, which is arranged on the fixed housing 3 and is used to add lubricating oil to the rotating gear 7 and the transmission gear 8;

[0032] The filter assembly is arranged on the fixed housing 3 and is used for filtering impurities in the air. Example

[0033] On the basis of the first embodiment, this embodiment describes one of the implementable structures of the lubrication assembly, the lubrication assembly includes a gear box 11 fixedly arranged on one side of the fixed housing 3, a transmission gear 8 and a rotating gear 7 are rotatably arranged in the gear box 11, an oil inlet 12 is provided on the inner wall of the gear box 11, an oil storage tank 13 is fixedly arranged on one side of the gear box 11, an oil outlet 14 is provided in the oil storage tank 13, a partition plate 15 is fixedly arranged in the oil storage tank 13, a movable plate 16 is movably arranged in the oil storage tank 13, a plurality of one-way valves 17 are fixedly arranged on the movable plate 16 and the partition plate 15, a connecting rod 18 is fixedly arranged on the movable plate 16, one side of the connecting rod 18 passes through the oil storage tank 13 and is fixedly connected to an electric telescopic rod 19, the electric telescopic rod 19 is fixedly arranged on a fixed bracket 20, and the fixed bracket 20 is fixedly arranged on the fixed housing 3;

[0034] The oil inlet 12 and the oil outlet 14 are arranged at corresponding positions, a connecting pipe 27 is fixedly arranged at the bottom of the oil storage tank 13, and a liquid level detector 21 is fixedly arranged at the bottom of the gear box 11, and the liquid level detector 21 is electrically connected to the electric telescopic rod 19;

[0035] In this embodiment, the rotating shaft 4 and the transmission shaft 9 are both set through the gear box 11. The lubricating oil in the gear box 11 can lubricate the gears. The lubricating oil can be stored in the oil storage tank 13. The partition plate 15 can separate the lubricating oil. When the electric telescopic rod 19 drives the connecting rod 18 to rise and fall, it will drive the movable plate 16 to rise and fall. When the movable plate 16 rises, the pressure near the partition plate 15 is reduced, so that the lubricating oil at the bottom will rise through the one-way valve 17 on the partition plate 15. When the movable plate 16 descends, the lubricating oil will flow to the top of the movable plate 16 through the one-way valve 17 on the movable plate 16. When the movable plate 16 rises again, it will rise with the lubricating oil, so that the lubricating oil can enter the gear box 11 through the oil inlet 12. The liquid level detector 21 can control the switch of the electric telescopic rod 19 according to the height of the lubricating oil liquid level in the gear box 11, thereby realizing the function of automatically adding lubricating oil. Example

[0036] On the basis of the first embodiment, this embodiment describes one of the implementable structures of the filter assembly, the filter assembly includes an air inlet 22 and an air outlet 23 fixedly arranged on the fixed housing 3, the air inlet 22 and the air outlet 23 are both provided with a filter screen 24, a sealing plate 25 is fixedly arranged on one side of the filter screen 24, the sealing plate 25 is bolted to the air inlet 22 and the air outlet 23, a replacement groove 26 is opened on the air inlet 22 and the air outlet 23, and the sealing plate 25 is bolted to the replacement groove 26;

[0037] In this embodiment, the air inlet 22 allows air to enter, the air outlet 23 allows air to be discharged, the filter 24 can filter impurities in the air, and the sealing plate 25 can seal the installation position of the replacement slot 26 and the filter 24.

[0038] The driving motor 1, the Roots blower body 2, the rotating impeller 10, the one-way valve 17, the electric telescopic rod 19, the liquid level detector 21 and the soundproof casing 28 are devices or equipment existing in the prior art, or are devices or equipment that can be realized in the prior art, and the specifications and models of the driving motor 1, the Roots blower body 2, the rotating impeller 10, the one-way valve 17, the electric telescopic rod 19, the liquid level detector 21 and the soundproof casing 28 are well known to those skilled in the art and will not be described in detail here.

[0039] Working principle: When the Roots blower body 2 is working, the driving motor 1 is turned on, and the driving motor 1 can drive the rotating shaft 4 to rotate synchronously with the rotating impeller 10 on the rotating shaft 4 and the transmission shaft 9. The air inside the fixed shell 3 is compressed by the rotation of the rotating impeller 10, so that the air is discharged from the air outlet 23. At the same time, the air pressure in the fixed shell 3 is reduced, so that the external air enters through the air inlet 22. In the process of air entering and exiting the fixed shell 3, the filter 24 can filter impurities in the air, and the soundproof shell 28 can block the noise generated by the Roots blower body 2 when it is working to a certain extent;

[0040] When the lubricating oil level in the gear box 11 is too low, the liquid level detector 21 will detect that the liquid level is too low, thereby controlling the opening of the electric telescopic rod 19. When the electric telescopic rod 19 drives the connecting rod 18 to rise and fall, it will drive the movable plate 16 to rise and fall. When the movable plate 16 rises, the pressure near the partition plate 15 is reduced, so that the lubricating oil at the bottom will rise through the one-way valve 17 on the partition plate 15. When the movable plate 16 descends, the lubricating oil will flow to the top of the movable plate 16 through the one-way valve 17 on the movable plate 16. When the movable plate 16 rises again, it will rise with the lubricating oil, so that the lubricating oil can enter the gear box 11 through the oil inlet 12, thereby realizing the function of automatically adding lubricating oil.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully meshed rotor type Roots blower, comprising a drive motor (1) and a Roots blower body (2), characterized in that: A fixed housing (3) is fixedly provided on the Roots blower body (2), a rotating shaft (4) is rotatably provided in the fixed housing (3), a driving shaft (5) is fixedly provided on one side of the driving motor (1), one side of the rotating shaft (4) passes through the fixed housing (3) and is rotatably connected to the driving shaft (5) via a transmission belt (6), a rotating gear (7) is fixedly provided on one side of the rotating shaft (4), a transmission gear (8) is provided on one side of the rotating gear (7), the rotating gear (7) and the transmission gear (8) are meshed with each other, a transmission shaft (9) is fixedly connected on one side of the transmission gear (8), and a rotating impeller (10) is fixedly provided on both the transmission shaft (9) and the rotating shaft (4); a lubrication assembly, the lubrication assembly being arranged on the fixed housing (3) and being used for adding lubricating oil to the rotating gear (7) and the transmission gear (8); A filter assembly is arranged on the fixed housing (3) and is used to filter impurities in the air.

2. A fully meshing rotor type Roots blower according to claim 1, characterized in that: The lubrication assembly comprises a gear box (11) fixedly arranged on one side of a fixed housing (3), a transmission gear (8) and a rotating gear (7) being rotatably arranged in the gear box (11), an oil inlet (12) being provided on the inner wall of the gear box (11), an oil storage tank (13) being fixedly arranged on one side of the gear box (11), an oil outlet (14) being provided in the oil storage tank (13), a partition plate (15) being fixedly arranged in the oil storage tank (13), a movable plate (16) being movably arranged in the oil storage tank (13), a plurality of one-way valves (17) being fixedly arranged on both the movable plate (16) and the partition plate (15), a connecting rod (18) being fixedly arranged on the movable plate (16), one side of the connecting rod (18) penetrating the oil storage tank (13) and being fixedly connected to an electric telescopic rod (19), the electric telescopic rod (19) being fixedly arranged on a fixed bracket (20), and the fixed bracket (20) being fixedly arranged on the fixed housing (3).

3. A fully meshing rotor type Roots blower according to claim 2, characterized in that: A liquid level detector (21) is fixedly arranged at the bottom of the gear box (11), and the liquid level detector (21) is electrically connected to the electric telescopic rod (19).

4. A fully meshing rotor type Roots blower according to claim 1, characterized in that: The filter assembly comprises an air inlet (22) and an air outlet (23) fixedly arranged on a fixed housing (3); a filter screen (24) is arranged on each of the air inlet (22) and the air outlet (23); a sealing plate (25) is fixedly arranged on one side of the filter screen (24); and the sealing plate (25) is bolted to the air inlet (22) and the air outlet (23).

5. A fully meshing rotor type Roots blower according to claim 4, characterized in that: The air inlet (22) and the air outlet (23) are provided with replacement grooves (26), and the replacement grooves (26) are bolted with sealing plates (25).

6. A fully meshing rotor type Roots blower according to claim 2, characterized in that: The oil inlet (12) and the oil outlet (14) are arranged at corresponding positions, and a connecting pipe (27) is fixedly arranged at the bottom of the oil storage tank (13).

7. A fully meshing rotor type Roots blower according to claim 1, characterized in that: The fixed outer shell (3) is provided with a sound insulation outer shell (28) fixedly wrapped outside.

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