Roots blower rotor assembly easy to assemble

Abstract

The utility model discloses a Roots blower rotor assembly easy to assemble, and relates to the technical field of Roots blower rotors. The motor comprises a shell, a mounting plate is arranged at the rear end of the shell, guide rods are fixedly connected to the four corners of the front end of the mounting plate, the guide rods are in sliding connection with the shell, a driving rotor is rotationally connected to one side of the middle of the mounting plate, and a driven rotor is rotationally connected to the other side of the middle of the mounting plate. According to the utility model, the shell, the mounting plate and the positioning plate are all sleeved on the guide rod in a sliding manner, and the positioning plate and the rolling bearing are designed, so that the assembly of the rotor assembly is simpler, more convenient and faster, the shaking and the positioning difficulty during assembly are reduced, the maintenance or replacement of the rotor assembly can be more efficiently carried out, and the maintenance efficiency is improved. And the rolling bearing is used for supporting the rotor, so that the vibration of the rotor in operation can be reduced, the stability of the fan is improved, and the service life of the fan is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of Roots blower rotors, and particularly relates to a Roots blower rotor assembly which is easy to assemble. Background Art

[0002] Roots blowers are widely used in many fields such as aquaculture, sewage treatment, cement conveying, and pharmaceutical industry. A Roots blower is a positive-displacement blower. The working principle of a Roots blower mainly depends on the relative movement of two lobe-shaped rotors in a cylinder to compress and transport gas. However, there are the following deficiencies in use:

[0003] 1. When assembling the internal rotor assembly of some existing Roots blowers, the rotor assembly will shake during installation, which is not convenient for positioning the rotor assembly. When maintaining and replacing the rotor assembly, it will consume manpower and material resources, thus increasing the maintenance cost and being not conducive to improving the practicability of the equipment.

[0004] Therefore, we propose a Roots blower rotor assembly which is easy to assemble. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems in the prior art that when assembling the internal rotor assembly of some Roots blowers, the rotor assembly will shake during installation, which is not convenient for positioning the rotor assembly. When maintaining and replacing the rotor assembly, it will consume manpower and material resources, thus increasing the maintenance cost and being not conducive to improving the practicability of the equipment. And a Roots blower rotor assembly which is easy to assemble is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A Roots blower rotor assembly which is easy to assemble, comprising:

[0008] A housing, an installation plate is arranged at the rear end of the housing. Guide rods are fixedly connected to the four corners at the front end of the installation plate. The guide rods are slidably connected to the housing. A driving rotor is rotatably connected to one side of the middle of the installation plate, and a driven rotor is rotatably connected to the other side of the middle of the installation plate. The driving rotor and the driven rotor are located inside the housing and are used for limiting the driving rotor and the driven rotor;

[0009] A support assembly, the support assembly includes a positioning plate installed at the front end of the housing. The positioning plate is slidably connected to the guide rods. Rolling bearings are rotatably connected to both sides of the middle of the positioning plate. The inner walls of the two rolling bearings are respectively fixedly connected to the outer walls of the front ends of the driving rotor and the driven rotor and are used for supporting the driving rotor and the driven rotor;

[0010] The transmission assembly is installed at the front ends of the driving rotor and the driven rotor and is used to drive the driving rotor and the driven rotor to rotate.

[0011] In a possible design, the transmission assembly includes a driving gear fixedly installed at the front end of the driving rotor. An outer wall at the front end of the driven rotor is fixedly connected with a driven gear. The driving gear is meshed and connected with the driven gear and is used to drive the driving rotor and the driven rotor to rotate in opposite directions.

[0012] In a possible design, a first gasket is arranged in the middle of the housing and the mounting plate, and a second gasket is arranged in the middle of the housing and the positioning plate. Both the first gasket and the second gasket are slidably sleeved on the outer wall of the guide rod.

[0013] In a possible design, a first end cover is arranged at the front end of the housing. The first end cover is slidably sleeved on the outer wall of the guide rod and is fixedly connected by bolts. The rear end of the first end cover is rotationally connected with the driving rotor and the driven rotor. A second end cover is fixedly connected to the rear end of the housing by bolts. The rear end of the driving rotor penetrates through the second end cover, and the rear end of the driven rotor is rotationally connected with the second end cover.

[0014] In a possible design, an air outlet is arranged at the upper end of the housing, and an air inlet is arranged at the lower end of the housing.

[0015] In a possible design, handles are fixedly connected to outer walls on both sides of the housing.

[0016] In this application, during use, when the Roots blower works, an external driving device drives the driving rotor to rotate, and the driving gear fixed to the front end of the driving rotor rotates accordingly. The driving gear is meshed and connected with the driven gear, thereby driving the driven rotor to rotate in the opposite direction to the driving rotor. During the rotation of the driving rotor and the driven rotor, through the support of the rolling bearings, relative movement is performed inside the housing, thereby realizing the compression and transportation of gas. When the rotor assembly needs to be further assembled, by fixedly connecting guide rods at the four corners at the front end of the mounting plate and making the guide rods slidably connected with the housing, the driving rotor and the driven rotor are rotationally installed on the mounting plate, realizing the positioning and limiting of the driving rotor and the driven rotor inside the housing, improving the convenience of assembly. At the same time, the driving rotor and the driven rotor are supported by the rolling bearings on the positioning plate. The inner wall of the rolling bearing is fixedly connected with the outer wall at the front end of the rotor, ensuring the stable operation of the rotor. At the same time, gaskets are arranged between the housing and the mounting plate, and between the housing and the positioning plate, and are slidably sleeved on the outer wall of the guide rod to improve the sealing performance of the assembly. At the same time, the housing, the mounting plate, and the positioning plate are all slidably sleeved on the guide rod, which can limit each component to improve the convenience of assembly.

[0017] In the present utility model, for the rotor assembly of a Roots blower that is easy to assemble, the housing, mounting plate, and positioning plate are all slidably sleeved on the guide rod. With the design of the positioning plate and rolling bearings, the assembly of the rotor assembly is made more convenient and rapid, reducing the shaking and positioning difficulties during assembly. When maintenance or replacement of the rotor assembly is required, it can be carried out more efficiently, thereby reducing the maintenance cost. Using rolling bearings to support the rotor can reduce the vibration of the rotor during operation, improving the stability and service life of the blower;

[0018] In the present utility model, for the rotor assembly of a Roots blower that is easy to assemble, through the design of the first gasket and the second gasket, the sealing performance of the rotor assembly is enhanced, preventing gas leakage and improving the blower efficiency. End covers are respectively provided at the front end and the rear end of the housing, an air outlet is provided at the upper end, and an air inlet is provided at the lower end, making the entire assembly structure compact and facilitating installation and use. By providing a handle, it is convenient for the operator to carry the rotor assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a front view exploded three-dimensional structure schematic diagram of an embodiment of the present utility model;

[0021] Figure 2 It is a rear view exploded three-dimensional structure schematic diagram of an embodiment of the present utility model;

[0022] Figure 3 It is a transverse sectional three-dimensional structure schematic diagram of an embodiment of the present utility model;

[0023] Figure 4 It is a longitudinal sectional three-dimensional structure schematic diagram of an embodiment of the present utility model;

[0024] Figure 5 It is a partial sectional three-dimensional structure schematic diagram of an embodiment of the present utility model;

[0025] Figure 6 It is a three-dimensional structure schematic diagram of an embodiment of the present utility model.

[0026] In the figure: 1. housing; 2. mounting plate; 3. guide rod; 4. driving rotor; 5. driven rotor; 6. positioning plate; 7. rolling bearing; 8. driving gear; 9. driven gear; 10. first end cover; 11. second end cover; 12. first gasket; 13. second gasket; 14. air outlet; 15. air inlet; 16. handle. Detailed implementation

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc. indicating orientation or position relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0029] In order to keep the following description of the embodiments of the present invention clear and concise, the detailed description of known functions and known components is omitted in the present invention. Embodiment

[0030] Referring to Figures 1-6 , a rotor assembly includes:

[0031] A housing 1, a mounting plate 2 is provided at the rear end of the housing 1. Guide rods 3 are fixedly connected to the four corners at the front end of the mounting plate 2. The guide rods 3 are slidably connected to the housing 1. A driving rotor 4 is rotatably connected to one side of the middle of the mounting plate 2, and a driven rotor 5 is rotatably connected to the other side of the middle of the mounting plate 2. The driving rotor 4 and the driven rotor 5 are located inside the housing 1 and are used for limiting the driving rotor 4 and the driven rotor 5.

[0032] A support assembly, the support assembly includes a positioning plate 6 installed at the front end of the housing 1. The positioning plate 6 is slidably connected to the guide rods 3. Rolling bearings 7 are rotatably connected to both sides of the middle of the positioning plate 6. The inner walls of the two rolling bearings 7 are respectively fixedly connected to the outer walls of the front ends of the driving rotor 4 and the driven rotor 5, and are used for supporting the driving rotor 4 and the driven rotor 5.

[0033] A transmission assembly, the transmission assembly is installed at the front ends of the driving rotor 4 and the driven rotor 5 and is used for driving the driving rotor 4 and the driven rotor 5 to rotate.

[0034] In the above technical solution, when the rotor assembly needs to be further assembled, guide rods 3 are fixedly connected to the four front corners of the mounting plate 2, and the guide rods 3 are slidably connected to the housing 1. The driving rotor 4 and the driven rotor 5 are rotatably mounted on the mounting plate 2, so as to position and limit the driving rotor 4 and the driven rotor 5 in the housing 1, improving the convenience of assembly.

[0035] In one aspect of this embodiment, as Figure 1 shown, the transmission assembly includes a driving gear 8 fixedly mounted at the front end of the driving rotor 4. An outer wall at the front end of the driven rotor 5 is fixedly connected with a driven gear 9. The driving gear 8 is meshed with the driven gear 9 for driving the driving rotor 4 and the driven rotor 5 to rotate in opposite directions.

[0036] In the above technical solution, when the Roots blower works, an external driving device drives the driving rotor 4 to rotate. The driving gear 8 fixed at the front end of the driving rotor 4 rotates accordingly. The driving gear 8 is meshed with the driven gear 9, thereby driving the driven rotor 5 to rotate in the opposite direction to the driving rotor 4. During the rotation of the driving rotor 4 and the driven rotor 5, through the support of the rolling bearings 7, relative movement is performed inside the housing 1, thereby realizing the compression and delivery of gas.

[0037] In one aspect of this embodiment, as Figure 2 shown, a first gasket 12 is arranged in the middle of the housing 1 and the mounting plate 2, and a second gasket 13 is arranged in the middle of the housing 1 and the positioning plate 6. Both the first gasket 12 and the second gasket 13 are slidably sleeved on the outer wall of the guide rod 3.

[0038] In the above technical solution, through the design of the first gasket 12 and the second gasket 13, the sealing performance of the rotor assembly is enhanced, preventing gas leakage and improving the efficiency of the blower.

[0039] This application can be used in the field of rotors and also in other fields applicable to this application. Embodiment

[0040] Based on Embodiment 1 for improvement: An easily assembled Roots blower rotor assembly, which is applied in the field of Roots blower rotors.

[0041] In one aspect of this embodiment, as Figure 3 shown, a first end cover 10 is arranged at the front end of the housing 1. The first end cover 10 is slidably sleeved on the outer wall of the guide rod 3 and fixedly connected by bolts. The rear end of the first end cover 10 is rotatably connected to the driving rotor 4 and the driven rotor 5. A second end cover 11 is fixedly connected to the rear end of the housing 1 by bolts. The rear end of the driving rotor 4 penetrates through the second end cover 11, and the rear end of the driven rotor 5 is rotatably connected to the second end cover 11.

[0042] In the above technical solution, the first end cap 10 and the second end cap 11 are provided for sealing the rotor assembly.

[0043] In one aspect of this embodiment, as Figure 1 shown, an air outlet 14 is provided at the upper end of the housing 1, and an air inlet 15 is provided at the lower end of the housing 1.

[0044] In the above technical solution, by providing the air outlet 14 and the air inlet 15, the air outlet and air inlet of the device are realized.

[0045] In another aspect of this embodiment, as Figure 1 shown, handles 16 are fixedly connected to the outer walls on both sides of the housing 1.

[0046] In the above technical solution, by providing the handles 16, it is convenient for the operator to carry the rotor assembly.

[0047] In the description of this specification, the descriptions with reference to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A Roots blower rotor assembly that is easy to assemble, characterized in that, Comprising: A housing (1), at the rear end of the housing (1) there is a mounting plate (2), at the four corners of the front end of the mounting plate (2) there are guide rods (3) fixedly connected, the guide rods (3) are slidably connected to the housing (1), on one side of the middle of the mounting plate (2) there is a driving rotor (4) rotatably connected, on the other side of the middle of the mounting plate (2) there is a driven rotor (5) rotatably connected, the driving rotor (4) and the driven rotor (5) are located inside the housing (1), for limiting the driving rotor (4) and the driven rotor (5); A support assembly, the support assembly includes a positioning plate (6) mounted at the front end of the housing (1), the positioning plate (6) is slidably connected to the guide rods (3), on both sides of the middle of the positioning plate (6) there are rolling bearings (7) rotatably connected, the inner walls of the two rolling bearings (7) are respectively fixedly connected to the outer walls of the front ends of the driving rotor (4) and the driven rotor (5), for supporting the driving rotor (4) and the driven rotor (5); A transmission assembly, the transmission assembly is mounted at the front ends of the driving rotor (4) and the driven rotor (5), for driving the driving rotor (4) and the driven rotor (5) to rotate.

2. The rotor assembly of a Roots blower that is easy to assemble according to claim 1, wherein The transmission assembly includes a driving gear (8) fixedly mounted at the front end of the driving rotor (4), on the outer wall of the front end of the driven rotor (5) there is a driven gear (9) fixedly connected, the driving gear (8) is meshed with the driven gear (9), for driving the driving rotor (4) and the driven rotor (5) to rotate in opposite directions.

3. The rotor assembly of a Roots blower that is easy to assemble according to claim 1, characterized in that, In the middle of the housing (1) and the mounting plate (2) there is a first gasket (12), in the middle of the housing (1) and the positioning plate (6) there is a second gasket (13), the first gasket (12) and the second gasket (13) are both slidably sleeved on the outer wall of the guide rod (3).

4. The rotor assembly of a Roots blower that is easy to assemble according to claim 1, wherein, At the front end of the housing (1) there is a first end cover (10), the first end cover (10) is slidably sleeved on the outer wall of the guide rod (3) and fixedly connected by bolts, the rear end of the first end cover (10) is rotatably connected to the driving rotor (4) and the driven rotor (5), at the rear end of the housing (1) there is a second end cover (11) fixedly connected by bolts, the rear end of the driving rotor (4) penetrates through the second end cover (11), the rear end of the driven rotor (5) is rotatably connected to the second end cover (11).

5. The rotor assembly of a Roots blower that is easy to assemble according to claim 1, characterized in that, At the upper end of the housing (1) there is an air outlet (14), at the lower end of the housing (1) there is an air inlet (15).

6. The rotor assembly of a Roots blower that is easy to assemble according to claim 1, characterized in that, On the outer walls of both sides of the housing (1) there are handles (16) fixedly connected.

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