Roots blower integrating blower and motor

Abstract

The utility model relates to a Roots blower integrated with a blower and a motor, which is applied to the field of Roots blowers and comprises a driving motor and a driving motor, the driving motor comprises a Roots main machine, the right end of the Roots main machine is fixedly connected with a main machine output shaft, the right end of the Roots main machine is fixedly connected with a connecting disc, and the right end of the main machine output shaft movably penetrates through the connecting disc. The driving motor comprises a motor shell, the left end of the motor shell is fixedly connected with the right end of the connecting disc, a motor stator winding is fixedly connected into the motor shell, the left end of the motor stator winding is fixedly connected with a motor rotor, and the motor rotor is fixedly arranged on the outer surface of the main machine output shaft in a sleeving mode. A fan-motor integration technology is adopted, a motor rotor and a fan are coaxial, a rolling bearing is adopted for two-point supporting, compared with a traditional structure, a coupler or a transmission belt is omitted, a motor bearing is omitted, mechanical loss is reduced, and meanwhile daily maintenance work of parts such as a belt and the motor bearing is omitted.

Description

Technical Field

[0001] The utility model relates to a Roots blower, in particular to a blower-motor integrated Roots blower applied in the field of Roots blowers. 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] The connection method of Roots main machine with similar design is belt connection or coupling connection, which results in large mechanical loss and low transmission efficiency. It not only takes up a large installation space, but also makes relatively loud noise during use. Its internal drive motor is mostly asynchronous motor with relatively high energy consumption. After long-term use, there are problems with the bearing life. Utility Model Content

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that the connection method of the Roots main machine of the same design is belt connection or coupling connection, which results in large mechanical loss, low transmission efficiency and high energy consumption. Not only does it occupy a large installation space, but it also produces relatively loud noise during use.

[0005] To solve the above problems, the utility model provides a Roots blower with an integrated blower motor, comprising a Roots main unit and a driving motor, the right end of the Roots main unit is fixedly connected to the main unit output shaft, the right end of the Roots main unit is fixedly connected to a connecting disk, the right end of the main unit output shaft movably penetrates the connecting disk, the driving motor comprises a motor housing, the left end of the motor housing is fixedly connected to the right end of the connecting disk, a motor stator winding is fixedly connected inside the motor housing, the left end of the motor stator winding is fixedly connected to a motor rotor, the motor rotor is fixedly sleeved on the outer surface of the main unit output shaft, the upper end of the Roots main unit is fixedly connected to an inlet filter, the lower end of the Roots main unit is fixedly connected to an outlet muffler, and the outer cover of the Roots main unit is provided with a sound insulation cover.

[0006] In the above-mentioned Roots blower with integrated fan and motor, the "fan-motor integration" technology is adopted to make the motor rotate coaxially with the fan and adopt rolling bearing two-point support. Compared with the traditional structure, the coupling or transmission belt is cancelled, the motor bearing is saved, the mechanical loss is reduced, and the daily maintenance of parts such as belts and motor bearings is saved.

[0007] As a further improvement of the present application, the Roots main engine, the drive motor, the inlet filter and the outlet muffler are all located in the soundproof enclosure.

[0008] As a further improvement of the present application, the lower end of the outlet muffler is fixedly connected to the inner wall of the sound insulation cover, and the right end of the outlet muffler is fixedly passed through the sound insulation cover.

[0009] As a further improvement of the present application, the right end of the sound insulation cover is rotatably connected to a ventilation window via a hinge, and the ventilation window is located directly to the right of the inlet filter.

[0010] As a further improvement of the present application, fans are fixedly embedded in the upper end and the right end of the sound insulation cover, and the fan on the right side is located below the air vent.

[0011] As another improvement of the present application, the upper end and the right end of the sound insulation cover are fixedly connected with a circular block corresponding to the fan, and the end of the circular block away from the fan is fixedly connected with a filter.

[0012] To sum up, in actual application, the external Roots main engine and the motor housing are connected together through a connecting plate, the main engine output shaft and the motor rotor are fixedly connected, and the motor rotor is driven to rotate by the motor stator winding through electromagnetic induction, thereby driving the operation of the entire system, making the motor efficiency 5%-10% higher than that of the traditional asynchronous motor. Under constant pressure conditions, automatic adjustment of the air volume in the range of 30%-100% can be achieved, and the energy-saving effect is significant under small flow conditions. The outlet pressure is adaptive, the outlet muffler can reduce the overall operating noise, and the inlet filter can filter and silence the air intake for the Roots main engine. The soundproof cover can not only reduce noise, but also improve the heat dissipation efficiency of internal parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a Roots host machine according to the first embodiment of the present application;

[0014] Figure 2 This is a cross-sectional view of the drive motor structure of the first embodiment of the present application;

[0015] Figure 3 This is a schematic diagram of the connection disk structure of the first embodiment of the present application;

[0016] Figure 4 This is a schematic diagram of the structure of a soundproof enclosure according to the first embodiment of the present application;

[0017] Figure 5 A top view of the soundproof enclosure structure according to the first embodiment of the present application;

[0018] Figure 6 This is a schematic diagram of the structure of the inlet filter according to the first embodiment of the present application;

[0019] Figure 7 This is a schematic diagram of the sound insulation enclosure structure of the second embodiment of the present application.

[0020] Description of the numbers in the figure:

[0021] 1 Roots main engine, 2 main engine output shaft, 3 connecting plate, 4 motor rotor, 5 motor housing, 6 motor stator winding, 7 inlet filter, 8 drive motor, 9 filter screen, 10 outlet muffler, 11 sound insulation cover, 12 round block. DETAILED DESCRIPTION

[0022] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0023] The first implementation method:

[0024] Figure 1 and Figure 2 Shown is a Roots blower with integrated blower motor, comprising a Roots main unit 1 and a driving motor 8, wherein the right end of the Roots main unit 1 is fixedly connected with a main unit output shaft 2, and the right end of the Roots main unit 1 is fixedly connected with a connecting disk 3, which can fix the Roots main unit 1 and the motor housing 5, and the right end of the main unit output shaft 2 movably passes through the connecting disk 3.

[0025] Figure 2 and Figure 3 It is shown that the driving motor 8 includes a motor housing 5, the left end of the motor housing 5 is fixedly connected to the right end of the connecting disk 3, a motor stator winding 6 is fixedly connected inside the motor housing 5, a motor rotor 4 is fixedly connected to the left end of the motor stator winding 6, and the motor rotor 4 is fixedly sleeved on the outer surface of the main output shaft 2. The motor stator winding 6 is driven to rotate by electromagnetic induction, which can drive the motor rotor 4 to rotate, so that the main output shaft 2 rotates synchronously, thereby making the overall system run and improving the motor efficiency.

[0026] Figure 4 , Figure 5 and Figure 6 It is shown that: the upper end of the Roots main engine 1 is fixedly connected with an inlet filter 7, which can filter the air intake and muffle the noise for the Roots main engine 1; the lower end of the Roots main engine 1 is fixedly connected with an outlet muffler 10, which can reduce the overall operating noise; the outer cover of the Roots main engine 1 is provided with a soundproof cover 11, which can not only reduce the noise but also improve the heat dissipation efficiency of the internal parts; the Roots main engine 1, the drive motor 8, the inlet filter 7 and the outlet muffler 10 are all located in the soundproof cover 11; the lower end of the outlet muffler 10 is fixedly connected to the inner wall of the soundproof cover 11; the right end of the outlet muffler 10 is fixedly passed through the soundproof cover 11; the right end of the soundproof cover 11 is rotatably connected with a ventilation window through a hinge; the ventilation window is located to the right of the inlet filter 7; the upper end and the right end of the soundproof cover 11 are fixedly inlaid with fans, and the fan on the right side is located below the ventilation window.

[0027] When in use, the external Roots main engine 1 and the motor housing 5 are connected together through the connecting plate 3, the main engine output shaft 2 and the motor rotor 4 are fixedly connected, and the motor rotor 4 is driven to rotate by the motor stator winding 6 through electromagnetic induction, thereby driving the operation of the entire system, so that the motor efficiency is 5%-10% higher than that of the traditional asynchronous motor, and automatic adjustment of the air volume in the range of 30%-100% can be achieved under constant pressure conditions. The energy-saving effect is significant under small flow conditions, and the outlet pressure is adaptive. The outlet muffler 10 can reduce the overall operating noise, and the inlet filter 7 can filter and silence the air intake of the Roots main engine 1. The sound insulation cover 11 can not only reduce noise, but also improve the heat dissipation efficiency of internal parts.

[0028] The second implementation method:

[0029] Based on the first embodiment, this embodiment adds a circular block 12 and a filter screen 9, and the rest of the parts are consistent with the first embodiment.

[0030] Figure 7 It is shown that the upper end and the right end of the sound insulation cover 11 are fixedly connected with a circular block 12 corresponding to the fan, the circular block 12 can support and fix the filter 9, and the end of the circular block 12 away from the fan is fixedly connected with the filter 9, and the filter 9 can effectively prevent dust from entering the interior of the sound insulation cover 11.

[0031] When in use, the air entering the soundproof enclosure 11 is filtered through the filter 9, effectively preventing dust from entering the soundproof enclosure 11 and affecting the running parts.

[0032] In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A Roots blower with integrated blower motor, comprising a Roots main unit (1) and a drive motor (8), characterized in that: The right end of the Roots main engine (1) is fixedly connected to a main engine output shaft (2), the right end of the Roots main engine (1) is fixedly connected to a connecting disk (3), the right end of the main engine output shaft (2) movably penetrates the connecting disk (3), the drive motor (8) comprises a motor housing (5), the left end of the motor housing (5) is fixedly connected to the right end of the connecting disk (3), a motor stator winding (6) is fixedly connected inside the motor housing (5), the left end of the motor stator winding (6) is fixedly connected to a motor rotor (4), and the motor rotor (4) is fixedly sleeved on the outer surface of the main engine output shaft (2); An inlet filter (7) is fixedly connected to the upper end of the Roots main engine (1), an outlet muffler (10) is fixedly connected to the lower end of the Roots main engine (1), and a sound insulation cover (11) is provided on the outer cover of the Roots main engine (1).

2. The Roots blower with integrated blower and motor according to claim 1, characterized in that: The Roots main engine (1), the drive motor (8), the inlet filter (7) and the outlet muffler (10) are all located in the soundproof enclosure (11).

3. The Roots blower with integrated blower and motor according to claim 2, characterized in that: The lower end of the outlet silencer (10) is fixedly connected to the inner wall of the sound insulation cover (11), and the right end of the outlet silencer (10) is fixedly passed through the sound insulation cover (11).

4. The Roots blower with integrated blower and motor according to claim 3, characterized in that: The right end of the sound insulation cover (11) is rotatably connected to a ventilation window via a hinge, and the ventilation window is located directly to the right of the inlet filter (7).

5. The Roots blower with integrated blower and motor according to claim 4, characterized in that: Fans are fixedly embedded at the upper end and the right end of the sound insulation cover (11), and the fan on the right side is located below the ventilation window.

6. The Roots blower with integrated blower and motor according to claim 5, characterized in that: The upper end and the right end of the sound insulation cover (11) are both fixedly connected to a circular block (12) corresponding to the fan, and the end of the circular block (12) away from the fan is fixedly connected to a filter screen (9).

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