A Roots blower with an oil tank designed to prevent oil accumulation.

Abstract

This utility model provides a Roots blower with an oil tank featuring an anti-oil accumulation structure. The blower body includes an outer shell, an oil tank, and wall panels, which are sequentially and sealed together. The oil tank includes a rear cover, a middle shell, and a flange. The inner wall of the middle shell has a smooth, curved transition and an oil drain port. The wall panels include a fixing plate, with two impeller shaft support sleeves fixed to one side. Exhaust channels are located on the outer sides of the two impeller shaft support sleeves on the fixing plate. These exhaust channels are through holes, with one end extending to the bearing mounting position and the other end extending to the outside. This design solves the technical problem of impurity accumulation on the inner wall of most Roots blower oil tanks due to their polygonal inner wall structure. This utility model can be widely applied to Roots blowers.

Description

Technical Field

[0001] This utility model relates to a Roots blower, and more particularly to a Roots blower with an oil tank having an anti-oil accumulation structure. Background Technology

[0002] Currently, most Roots blower oil tanks have a polygonal inner wall structure. After the blower has been working for a long time, impurities will accumulate on the inner wall of the oil tank. When the lubricating oil inside the oil tank is drained and replaced, the accumulated impurities will not be discharged with it. The impurities in the oil tank will circulate with the lubricating oil to the relevant parts, causing wear on the parts. At the same time, it will damage the sealing rings inside the blower, destroying the sealing of the oil inside the blower and the sealing of gas transmission. Utility Model Content

[0003] This utility model addresses the above-mentioned technical problems by providing a Roots blower with an oil tank featuring an anti-oil accumulation structure. By installing an oil tank with an anti-oil accumulation structure on the Roots blower, impurities can be prevented from accumulating on the inner wall of the oil tank, thus preventing wear on the internal components of the blower, damage to the internal sealing rings, and ensuring the sealing performance of the oil and gas transmission within the blower.

[0004] Therefore, the technical solution of this utility model is a Roots blower with an oil tank that prevents oil accumulation. The blower body includes an outer shell, an oil tank, and a wall panel. The outer shell, the wall panel, and the oil tank are sealed and fixed in sequence.

[0005] The outer casing is equipped with an air inlet and an air outlet to facilitate gas transmission;

[0006] The fuel tank includes a rear cover plate, a middle shell, and a flange. The rear cover plate is located at the rear of the fuel tank, the middle shell is located in the middle of the fuel tank, and the flange is located at the front of the fuel tank.

[0007] The inner wall of the middle shell of the fuel tank has a smooth arc-shaped transition, and the middle shell of the fuel tank is equipped with an oil drain port;

[0008] The wall panel includes a wall panel fixing plate. Two impeller shaft support sleeves are fixedly provided on one side of the wall panel fixing plate. The two impeller shaft support sleeves are provided with through holes inside to support the impeller shaft.

[0009] The wall panel fixing plate is provided with exhaust channels on the outer side of the two impeller shaft support sleeves. The exhaust channels are through holes. One end of the exhaust channel goes through to the inside of the impeller shaft support sleeve on the adjacent side and is aligned with the bearing installation position. The other end of the exhaust channel goes through to the outside of the wall panel fixing plate.

[0010] Preferably, there are four oil drain ports, which are located at the lowest points of the upper, lower, left, and right ends of the middle shell of the oil tank.

[0011] Preferably, the connection between the rear cover plate of the fuel tank and the intermediate shell of the fuel tank is achieved through a rounded surface to achieve a smooth transition.

[0012] Preferably, the oil tank rear cover is provided with oil viewing windows near the top and bottom, and the two oil viewing windows are positioned diagonally.

[0013] Preferably, there are two exhaust channels on the outer side of each of the two impeller shaft support sleeves.

[0014] Preferably, the oil tank flange is provided with multiple assembly holes, and the wall plate fixing plate is provided with multiple assembly holes near the outer side. The outer shell, wall plate, and oil tank are locked together by screws passing through the assembly holes on the oil tank flange and the assembly holes on the wall plate fixing plate in sequence and the corresponding threaded holes on the outer shell, so as to realize the locking and fixing between the outer shell, wall plate, and oil tank.

[0015] Preferably, grooves are provided on both ends of the wall panel fixing plate at adjacent positions inside the mounting holes on the wall panel fixing plate, and oil sealing rings are provided in the grooves. The outer shell and the oil tank are respectively sealed to the wall panel through the oil sealing rings.

[0016] Preferably, a connecting support plate is fixedly provided between the two impeller shaft support sleeves, and the connecting support plate is also fixedly connected to the wall panel fixing plate.

[0017] Preferably, multiple reinforcing ribs are fixedly provided on the outer sides of the two impeller shaft support sleeves, and the other ends of the multiple reinforcing ribs are fixedly connected to the wall panel fixing plate.

[0018] The beneficial effects of this utility model are:

[0019] 1. By making the inner wall of the middle shell of the oil tank a smooth arc-shaped transition, it is possible to prevent the oil and impurities inside the oil tank from accumulating on the side wall of the oil tank. This prevents the impurities accumulated on the side wall from circulating to the internal components along with the lubricating oil during normal circulation lubrication and cooling, causing wear to the components. Furthermore, because the inner wall of the middle shell of the oil tank has a smooth arc-shaped transition, the oil will fall to the bottom of the oil tank under the action of gravity. When the oil is drained and replaced, the impurities in the oil tank will be discharged along with the oil, thus achieving purification inside the oil tank.

[0020] Furthermore, since the connection between the rear cover plate of the fuel tank and the intermediate shell of the fuel tank is also smoothly transitioned through an arc surface, it can further prevent impurities in the fuel tank from accumulating between the rear cover plate and the intermediate shell of the fuel tank, ensuring that the impurities are smoothly guided downward under the action of gravity, and are smoothly discharged when the fuel is discharged.

[0021] 2. By providing exhaust channels on the outer sides of the two impeller shaft support sleeves on the wall panel fixing plate, the exhaust channels are through holes. One end of the exhaust channel extends into the interior of the adjacent impeller shaft support sleeve and is aligned with the bearing installation position. The other end of the exhaust channel extends into the exterior of the wall panel fixing plate. When the blower is running, the bearing position inside will generate significant high temperatures. If it is not cooled in time, it will reduce the service life of the bearing and surrounding components. Therefore, by setting up exhaust channels to allow the bearing to come into contact with the outside air and form heat exchange, the temperature of the bearing and surrounding components can be continuously reduced, ensuring their operating performance and improving their service life. Attached Figure Description

[0022] Figure 1 This is a 3D view of a Roots blower with a polygonal oil tank, as described in the prior art.

[0023] Figure 2 This is a three-dimensional structural view of the present invention;

[0024] Figure 3 This is a three-dimensional view of the wall panel structure in this utility model;

[0025] Figure 4 This is a bottom view of the wall panel structure in this utility model;

[0026] Figure 5 This is a utility model Figure 4 Sectional view of AA;

[0027] Figure 6 This is a three-dimensional view of the fuel tank structure in this utility model.

[0028] Explanation of symbols in the diagram:

[0029] 1. Blower body; 2. Outer shell; 3. Oil tank; 301. Oil tank rear cover plate; 302. Oil tank intermediate shell; 303. Oil tank flange; 304. Assembly hole; 305. Arc surface; 4. Air inlet; 5. Air outlet; 6. Wall panel; 601. Wall panel fixing plate; 602. Impeller shaft support sleeve; 603. Reinforcing rib; 604. Connecting support plate; 605. Exhaust passage; 606. Assembly hole; 7. Oil drain port; 9. Oil viewing window; 10. Oil sealing ring. Detailed Implementation

[0030] The present invention will be further described below with reference to the embodiments.

[0031] pass Figures 1-6 As can be seen, the Roots blower with an oil tank that prevents oil accumulation has a blower body 1. The blower body 1 includes an outer shell 2, an oil tank 3, and a wall plate 6. The outer shell 2, the wall plate 6, and the oil tank 3 are sealed and fixed in sequence. The outer shell 2 is provided with an air inlet 4 and an air outlet 5 to realize the transmission of gas.

[0032] The fuel tank 3 includes a rear cover plate 301, an intermediate housing 302, and a flange 303. The rear cover plate 301 is located at the rear of the fuel tank 3, the intermediate housing 302 is located in the middle of the fuel tank 3, and the flange 303 is located at the front of the fuel tank 3.

[0033] The intermediate housing 302 of the oil tank is provided with an oil drain port 7, which enables rapid discharge and replacement of lubricating oil. Furthermore, the inner wall of the intermediate housing 302 of the oil tank has a smooth arc-shaped transition, which can prevent the oil and impurities inside the oil tank from accumulating on the side wall of the oil tank. This prevents the accumulated impurities from circulating with the lubricating oil to the internal components during the normal circulation lubrication and cooling process, causing wear to the components. During the oil discharge process, the impurities in the oil tank will be discharged along with the oil, realizing the purification of the oil tank.

[0034] The wall panel 6 includes a wall panel fixing plate 601. Two impeller shaft support sleeves 602 are fixedly provided on one side of the wall panel fixing plate 601. The two impeller shaft support sleeves 602 are respectively provided with through holes to support the rotation of the active and driven impeller shafts.

[0035] The wall panel fixing plate 601 is provided with exhaust channels 605 on the outer side of the two impeller shaft support sleeves 602. The exhaust channel 605 is a through hole. One end of the exhaust channel 605 passes through the interior of the adjacent impeller shaft support sleeve 602 and is aligned with the bearing installation position. The other end of the exhaust channel 605 passes through the exterior of the wall panel fixing plate 601. When the blower is running, the bearing position inside will generate significant high temperature. If it is not cooled in time, it will reduce the service life of the bearing and surrounding components. Therefore, by setting the exhaust channel 605 to make the bearing come into contact with the outside air and form heat exchange, the temperature of the bearing and surrounding components can be continuously reduced, ensuring their operating performance and improving their service life.

[0036] In one specific embodiment, there are four oil drain ports 7. The four oil drain ports 7 are located at the lowest point of the middle of the upper end, lower end, left end and right end of the middle shell 302 of the oil tank. First, the oil drain ports 7 in four directions are set to meet the oil draining needs of the blower in different installation directions under different working conditions. The application range is wide and the installation limitation is small.

[0037] In one specific embodiment, the connection between the rear cover plate 301 of the fuel tank and the intermediate housing 302 of the fuel tank is smoothly transitioned by the arc surface 305, which can prevent impurities in the fuel tank from accumulating between the rear cover plate 301 of the fuel tank and the intermediate housing 302 of the fuel tank. By setting the arc surface 305, it can be ensured that the impurities are smoothly guided downward under the action of gravity, and can be smoothly discharged when the oil is discharged.

[0038] In one specific embodiment, oil viewing windows 9 are respectively provided on the rear cover plate 301 of the oil tank near the top and bottom. The two oil viewing windows 9 are diagonally arranged. The state of the oil in the oil tank, such as the oil volume and the cleanliness of the oil, can be monitored in real time through the oil viewing windows 9. Furthermore, by designing the two oil viewing windows 9 diagonally, it can be ensured that when the blower is installed at different angles, the two oil viewing windows 9 always remain at different heights, making it convenient to observe the state of the oil inside the oil tank.

[0039] In one specific embodiment, there are two exhaust channels 605 on the outer side of the two impeller shaft support sleeves 602. Two exhaust channels 605 are used on each side to dissipate heat from the corresponding bearings. While ensuring the stable operation of the blower, the heat dissipation efficiency can be increased, and the bearings and surrounding components can be kept in the best operating condition.

[0040] In one specific embodiment, the oil tank flange 303 is provided with multiple assembly holes 304, and the wall plate fixing plate 601 is provided with multiple assembly holes 606 near the outer side. The outer shell 2, the wall plate 6, and the oil tank 3 are locked together by bolts passing through the assembly holes 304 on the oil tank flange 303 and the assembly holes 606 on the wall plate fixing plate 601 in sequence with the threaded holes at corresponding positions on the outer shell 2, thereby realizing the locking and fixing between the outer shell 2, the wall plate 6, and the oil tank 3. The bolt fixing enables quick disassembly and assembly, which is convenient for later maintenance.

[0041] In one specific embodiment, grooves are respectively provided on the inner adjacent positions of the mounting holes 606 on both sides of the wall panel fixing plate 601. Oil sealing rings 10 are provided in the grooves. The outer shell 2 and the oil tank 3 are respectively sealed to the wall panel 6 by the oil sealing rings 10 to avoid leakage of oil or medium.

[0042] In one specific embodiment, a connecting support plate 604 is fixedly provided between the two impeller shaft support sleeves 602. The connecting support plate 604 is also fixedly connected to the wall panel fixing plate 601, which can increase the stability of the structure of the two impeller shaft support sleeves 602 and ensure the reliability of impeller rotation.

[0043] In one specific embodiment, multiple reinforcing ribs 603 are fixedly provided on the outer sides of the two impeller shaft support sleeves 602 respectively, and the other ends of the multiple reinforcing ribs 603 are fixedly connected to the wall panel fixing plate 601 respectively. Their function is also to increase the robustness of the structure of the two impeller shaft support sleeves 602 and ensure the stability of impeller rotation.

[0044] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A Roots blower with an oil tank featuring an anti-oil accumulation structure, characterized in that: The system includes a blower body, which comprises an outer shell, an oil tank, and a wall panel, and the outer shell, wall panel, and oil tank are sequentially sealed and fixed together. The outer casing is provided with an air inlet and an air outlet to facilitate gas transmission; The fuel tank includes a rear cover plate, a middle shell, and a flange. The rear cover plate is located at the rear of the fuel tank, the middle shell is located in the middle of the fuel tank, and the flange is located at the front of the fuel tank. The inner wall of the intermediate shell of the oil tank is a smooth arc-shaped surface, and the intermediate shell of the oil tank is provided with an oil drain port; The wall panel includes a wall panel fixing plate, and two impeller shaft support sleeves are fixedly provided on one side of the wall panel fixing plate. The two impeller shaft support sleeves are respectively provided with through holes to support the impeller shaft. The wall panel fixing plate is provided with exhaust channels on the outer side of the two impeller shaft support sleeves. The exhaust channels are through holes. One end of the exhaust channel passes through the interior of the impeller shaft support sleeve on the adjacent side and is aligned with the bearing installation position. The other end of the exhaust channel passes through the exterior of the wall panel fixing plate.

2. The Roots blower with an oil tank having an anti-oil accumulation structure according to claim 1, characterized in that: The number of oil drain ports is four, and the four oil drain ports are respectively located at the lowest point of the middle of the upper end, lower end, left end and right end of the middle shell of the oil tank.

3. The Roots blower with an oil tank having an anti-oil accumulation structure according to claim 1, characterized in that: The connection between the rear cover of the fuel tank and the intermediate shell of the fuel tank is achieved through a smooth transition via an arc surface.

4. The Roots blower with an oil tank having an anti-oil accumulation structure according to claim 1, characterized in that: The oil tank rear cover is provided with oil viewing windows near the top and bottom, and the two oil viewing windows are positioned diagonally.

5. The Roots blower with an oil tank having an anti-oil accumulation structure according to claim 1, characterized in that: The number of exhaust channels at the outer positions of the two impeller shaft support sleeves are two each.

6. The Roots blower with an oil tank having an anti-oil accumulation structure according to claim 1, characterized in that: The oil tank flange is provided with multiple assembly holes, and the wall plate fixing plate is provided with multiple assembly holes near the outer side. The outer shell, wall plate and oil tank are locked together by screws passing through the assembly holes on the oil tank flange and the assembly holes on the wall plate fixing plate in sequence and the corresponding threaded holes on the outer shell, so as to realize the locking and fixing of the outer shell, the wall plate and oil tank.

7. The Roots blower with an oil tank having an anti-oil accumulation structure according to claim 6, characterized in that: The wall panel fixing plate has grooves on both sides of its end, adjacent to the mounting holes on the wall panel fixing plate. The grooves are equipped with oil sealing rings, and the outer shell and oil tank are sealed to the wall panel by the oil sealing rings.

8. The Roots blower with an oil tank having an anti-oil accumulation structure according to claim 1, characterized in that: A connecting support plate is fixedly provided between the two impeller shaft support sleeves, and the connecting support plate is also fixedly connected to the wall panel fixing plate.

9. The Roots blower with an oil tank having an anti-oil accumulation structure according to claim 8, characterized in that: Multiple reinforcing ribs are fixedly provided on the outer sides of the two impeller shaft support sleeves, and the other ends of the multiple reinforcing ribs are fixedly connected to the wall panel fixing plate.

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