Shock-absorbing and noise-reducing vacuum pump

Abstract

The utility model discloses a shock absorption and noise reduction vacuum pump which comprises a motor assembly, a turbine housing is installed at the front end of the motor assembly, a noise reduction pipe is installed on the surface of the rear end of the turbine housing, a silencer is arranged in the noise reduction pipe, and a noise reducer is connected to the interior of the silencer in a sealed mode through a sound transmission pipe fitting. A sound insulation cover is arranged in the motor assembly, a motor damping rear cover is installed in the sound insulation cover, the front end of the motor damping rear cover is fixedly connected with a damping front cover through a damping screw, and a bearing and a motor rotor are installed between the motor damping rear cover and the damping front cover. Noise reduction processing is carried out on the interior of the vacuum pump turbine, damping installation protection is carried out on the motor, so that internal assemblies are installed and fixed tightly and firmly, parts cannot shake or loosen, and the phenomenon that the motor is damaged due to too large vibration is effectively reduced.

Description

Technical Field

[0001] The utility model relates to a vacuum pump with shock absorption and noise reduction functions. Background Art

[0002] A vacuum pump refers to a device or equipment that uses mechanical, physical, chemical, or physical-chemical methods to evacuate the container to be pumped to obtain a vacuum. Generally speaking, a vacuum pump is a device that improves, generates, and maintains a vacuum in a closed space by various methods.

[0003] In the Chinese authorized patent document with the publication number CN217682155U, a vacuum pump with shock absorption and noise reduction functions belongs to the technical field of vacuum pumps. It solves the problems that the current method of placing the vacuum pump in a noise reduction device is not only inconvenient for staff to maintain and repair, but also cannot shock-absorb the vacuum pump, and internal parts are prone to damage due to its own vibration after long-term use. The vacuum pump with shock absorption and noise reduction functions includes a vacuum pump body. An arc-shaped groove is formed on the surface of the vacuum pump body, and a sound insulation cotton board is fixed in the inner cavity of the arc-shaped groove. An installation shell is installed on the surface of the vacuum pump body. The utility model embeds the sound insulation cotton board on the surface of the vacuum pump through the arc-shaped groove to insulate it. It can be maintained without disassembly while insulating the vacuum pump. At the same time, the fixing mechanism secondarily fixes the vacuum pump, effectively reducing the vibration generated during its operation. At the same time, the shock absorption mechanism also shocks the vacuum pump to further eliminate its vibration.

[0004] In the above-mentioned prior art, the motor assembly in the vacuum pump is prone to generate large vibrations, which are likely to cause impact damage and noise to the internal parts. Therefore, it is necessary to develop a new type of vacuum pump with shock absorption and noise reduction functions. Content of the Utility Model

[0005] The purpose of the utility model is to provide a vacuum pump with shock absorption and noise reduction functions to solve the problems that in the prior art, the motor assembly in the vacuum pump is prone to generate large vibrations, which are likely to cause impact damage and noise to the internal parts as mentioned in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A vacuum pump with shock absorption and noise reduction functions includes a motor assembly. A turbine housing is installed at the front end of the motor assembly. A noise reduction pipe is installed on the rear surface of the turbine housing. A muffler is arranged inside the noise reduction pipe. A noise reducer is hermetically connected to the inside of the muffler through a sound transmission pipe fitting. A sound insulation cover is arranged inside the motor assembly. A motor shock absorption rear cover is installed inside the sound insulation cover. The front end of the motor shock absorption rear cover is fixedly connected to a shock absorption front cover through a shock absorption screw rod. A bearing and a motor rotor are respectively installed between the motor shock absorption rear cover and the shock absorption front cover.

[0007] Preferably, heat dissipation grooves are arranged on the surface of the motor assembly.

[0008] Preferably, the output end of the motor assembly is connected with a fan assembly through a transmission shaft.

[0009] Preferably, a power controller is installed on the outer surface of the motor assembly, and the power controller is electrically connected to the motor assembly.

[0010] Preferably, a transmission shaft is installed at the center of the surfaces of the bearing and the motor rotor, and lubricating oil is applied to the connection between the motor rotor and the transmission shaft.

[0011] Preferably, a fixed base is installed at the bottom ends of the motor assembly and the turbine housing.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] (1) By installing a noise reduction pipe and a muffler at the rear end of the turbine housing, the noise generated inside the turbine housing can be sound-insulated and noise-reduced through the cooperation of the muffler and the noise reducer. A sound-insulating cover is arranged inside the motor assembly, and the inside of the sound-insulating cover adopts a sound-absorbing material, achieving a good sound-insulating effect;

[0014] (2) By using shock-absorbing screws, the shock-absorbing rear cover and the shock-absorbing front cover of the motor can be firmly installed and fixed, so that the internal components are installed and fixed tightly and firmly, and the parts will not shake or become loose, effectively reducing the damage caused by excessive vibration of the motor;

[0015] (3) Lubricating oil is applied to the connection between the motor rotor and the transmission shaft. By lubricating the inside of the motor rotor, the friction is reduced, and the noise generated by the motor rotor during operation is further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic front-end structure diagram of the present utility model;

[0017] Figure 2 is a schematic rear-end structure diagram of the present utility model;

[0018] Figure 3 is an exploded structure diagram of the present utility model.

[0019] In the figure: 1, power controller; 2, turbine housing; 3, motor assembly; 4, noise reducer; 5, fixed base; 6, muffler; 7, heat dissipation slot; 8, fan assembly; 9, noise reduction pipe; 10, transmission shaft; 11, sound-insulating cover; 12, shock-absorbing front cover; 13, motor rotor; 14, bearing; 15, shock-absorbing screw; 16, shock-absorbing rear cover of the motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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 of the embodiments.

[0021] Please refer to Figures 1-3 , an embodiment provided by the present invention: a shock-absorbing and noise-reducing vacuum pump, including a motor assembly 3. A turbine housing 2 is installed at the front end of the motor assembly 3. A noise reduction pipe 9 is installed on the rear end surface of the turbine housing 2. A muffler 6 is arranged inside the noise reduction pipe 9. A noise reducer 4 is hermetically connected inside the muffler 6 through a sound transmission pipe fitting. A sound insulation cover 11 is arranged inside the motor assembly 3. A motor shock-absorbing rear cover 16 is installed inside the sound insulation cover 11. The front end of the motor shock-absorbing rear cover 16 is fixedly connected to a shock-absorbing front cover 12 through a shock-absorbing screw 15. A bearing 14 and a motor rotor 13 are respectively installed between the motor shock-absorbing rear cover 16 and the shock-absorbing front cover 12.

[0022] Further, heat dissipation grooves 7 are arranged on the surface of the motor assembly 3.

[0023] Further, the output end of the motor assembly 3 is connected to a fan assembly 8 through a transmission shaft 10.

[0024] Further, a power controller 1 is installed on the outer surface of the motor assembly 3, and the power controller 1 is electrically connected to the motor assembly 3.

[0025] Further, a transmission shaft 10 is installed at the center of the surfaces of the bearing 14 and the motor rotor 13, and lubricating oil is applied to the connection between the motor rotor 13 and the transmission shaft 10.

[0026] Further, a fixed base 5 is installed at the bottom ends of the motor assembly 3 and the turbine housing 2.

[0027] Working principle: During use, a turbine housing 2 is installed at the front end of the motor assembly 3. A noise reduction pipe 9 is installed on the rear end surface of the turbine housing 2. A muffler 6 is arranged inside the noise reduction pipe 9. A noise reducer 4 is hermetically connected inside the muffler 6 through a sound transmission pipe fitting. By installing the noise reduction pipe 9 and the muffler 6 at the rear end of the turbine housing 2, the noise generated inside the turbine housing 2 can be sound-insulated and noise-reduced through the cooperation of the muffler 6 and the noise reducer 9. A sound insulation cover 11 is arranged inside the motor assembly 3. The inside of the sound insulation cover 11 is made of sound-absorbing material, which has a good sound insulation effect. A motor shock-absorbing rear cover 16 is installed inside the sound insulation cover 11. The front end of the motor shock-absorbing rear cover 16 is fixedly connected to a shock-absorbing front cover 12 through a shock-absorbing screw 15. By using the shock-absorbing screw 15, the motor shock-absorbing rear cover 16 and the shock-absorbing front cover 12 can be firmly installed and fixed, so that the internal components are installed and fixed tightly and firmly, and the parts will not shake or become loose, effectively reducing the damage caused by excessive vibration of the motor. A bearing 14 and a motor rotor 13 are respectively installed between the motor shock-absorbing rear cover 16 and the shock-absorbing front cover 12. A transmission shaft 10 is installed at the center of the surfaces of the bearing 14 and the motor rotor 13. Lubricating oil is applied to the connection between the motor rotor 13 and the transmission shaft 10. By lubricating the inside of the motor rotor 13, the friction is reduced, and the noise generated by the motor rotor 13 during operation is further reduced.

[0028] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A vacuum pump with vibration and noise reduction, comprising a motor assembly (3), characterized in that: A turbine housing (2) is installed at the front end of the motor assembly (3), a noise reduction pipe (9) is installed on the rear end surface of the turbine housing (2), a silencer (6) is arranged inside the noise reduction pipe (9), the inside of the silencer (6) is sealed and connected to the noise reducer (4) via a sound transmission pipe, a soundproof cover (11) is arranged inside the motor assembly (3), a motor shock-absorbing rear cover (16) is installed inside the soundproof cover (11), the front end of the motor shock-absorbing rear cover (16) is fixedly connected to the shock-absorbing front cover (12) via a shock-absorbing screw (15), and a bearing (14) and a motor rotor (13) are respectively installed between the motor shock-absorbing rear cover (16) and the shock-absorbing front cover (12).

2. A vibration-reducing and noise-reducing vacuum pump according to claim 1, characterized in that: The surface of the motor component (3) is provided with a heat dissipation groove (7).

3. A vibration-reducing and noise-reducing vacuum pump according to claim 1, characterized in that: The output end of the motor assembly (3) is connected to a fan assembly (8) via a transmission shaft (10).

4. A vibration-reducing and noise-reducing vacuum pump according to claim 1, characterized in that: A power controller (1) is installed on the outer surface of the motor component (3), and the power controller (1) is electrically connected to the motor component (3).

5. A vibration-reducing and noise-reducing vacuum pump according to claim 1, characterized in that: A transmission shaft (10) is installed at the center of the surface of the bearing (14) and the motor rotor (13), and lubricating oil is applied to the connection between the motor rotor (13) and the transmission shaft (10).

6. A vibration-reducing and noise-reducing vacuum pump according to claim 1, characterized in that: A fixed base (5) is installed at the bottom ends of the motor assembly (3) and the turbine housing (2).

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