Vacuum pump with noise reduction structure

Abstract

The invention discloses a vacuum pump with a noise reduction structure, and relates to the technical field of rotary-vane vacuum pumps, the vacuum pump comprises a vacuum pump main body and a controller, the vacuum pump main body comprises a driving assembly, a connecting assembly, an oil tank and a main pump body, the main pump body is installed in the oil tank, the driving assembly is connected with the main pump body through the connecting assembly, and the controller is connected with the controller. The open end of the oil tank is connected with a connecting assembly, a cooling assembly is arranged in the connecting assembly and can cool the main pump body, an oil liquid detection assembly and a liquid level monitoring assembly are arranged in the oil tank, the oil liquid detection assembly can detect the viscosity of lubricating oil, and the liquid level monitoring assembly can monitor the viscosity of the lubricating oil. The liquid level monitoring assembly can detect the content of oil liquid, so that when the device is used, the state of the oil liquid in the oil tank and the liquid level of the oil liquid can be monitored in real time, and when the device is used, a worker can replace lubricating oil conveniently, and the vacuumizing efficiency of the vacuum pump is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of rotary vane vacuum pumps, in particular to a vacuum pump with a silencer structure. Background Art

[0002] The rotary vane vacuum pump can remove dry gas from a sealed container. If it is equipped with a gas ballast device, it can also remove a certain amount of condensable gas.

[0003] However, when the rotary vane vacuum pump is in use, lubricating oil needs to be added to it so that the vacuum pump can be used normally. However, if the lubricating oil in the oil tank is used for a long time, the lubricating oil needs to be replaced regularly, because long-term use will cause impurities inside it, which will affect the quality of the lubricating oil. When the vacuum pump is working, it will generate heat. Although the lubricating oil can take away the heat during circulation to prevent the vacuum pump from overheating, the high temperature generated in the compression chamber will also oxidize the lubricating oil due to aging of the lubricating oil. Therefore, it is necessary to regularly and quantitatively inject lubricating oil into the oil tank to ensure the vacuum extraction efficiency of the vacuum pump. Summary of the invention

[0004] The object of the present invention is to provide a vacuum pump with a silencer structure to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vacuum pump with a silencer structure, comprising a vacuum pump body and a controller, the vacuum pump body comprising a drive assembly, a connecting assembly, an oil tank and a main pump body, the main pump body being installed in the oil tank, the drive assembly being connected to the main pump body via a connecting assembly, the open end of the oil tank being connected to the connecting assembly, a cooling assembly being arranged in the connecting assembly, the cooling assembly being capable of cooling the main pump body, an oil detection assembly and a liquid level monitoring assembly being arranged inside the oil tank, the oil detection assembly being capable of detecting the viscosity of the lubricating oil, and the liquid level monitoring assembly being capable of detecting the content of the oil.

[0006] Furthermore, an air inlet, an exhaust port, a gas ballast valve and an oil filling port are arranged above the oil tank, an oil baffle plate is arranged inside the oil tank, and the oil baffle plate is installed above the main pump body. The air inlet, exhaust port, gas ballast valve and oil filling port are respectively connected to the main pump body, and filters are respectively arranged inside the air inlet and exhaust port. An oil mirror is arranged on the side of the oil tank, and the oil mirror cooperates with the liquid level monitoring component.

[0007] Further, the oil fluid detection component includes multiple groups of mounting frames, multiple groups of detection magnets are installed between the mounting frames, the detection magnets are installed between the mounting frames through bearings, multiple groups of mounting brackets are installed at the bottom of the fuel tank, multiple groups of mating magnets are arranged between the mounting brackets, the detection magnets and the mating magnets repel each other, a pressure sensing plate is installed at the bottom of the mounting bracket, the mating magnet is in contact with the pressure sensing plate, and the pressure sensing plate is connected to the controller.

[0008] Further, the liquid level monitoring component includes a monitoring pipe, the inside of the monitoring pipe does not contact the inner surface of the oil tank, multiple groups of foam rings are installed outside the monitoring pipe, multiple groups of glass pipes are installed inside the monitoring pipe, the foam rings are externally plastic-sealed with a film, each foam ring is provided with a monitoring magnet, and two magnetic reed switches are installed inside each glass pipe, and the monitoring magnet cooperates with the two magnetic reed switches;

[0009] When the two magnetic reed switches are in contact: the electrode transmits an electrical signal to the controller;

[0010] When the two magnetic reed switches are not in contact; the electrode will not transmit a signal to the controller.

[0011] Further, the connection component includes a mounting bracket, legs are installed at the bottom of the mounting bracket, both ends of the mounting bracket are respectively connected to the driving component, the main pump body and the fuel tank, air holes are provided at the bottom of the mounting bracket, connecting plates are provided on both sides of the mounting bracket, the cooling component includes multiple groups of semiconductor refrigeration sheets, and the semiconductor refrigeration sheets are respectively arranged equidistantly inside the mounting bracket.

[0012] Further, the driving component includes a driving motor, a connecting shaft and blades are installed at the output end of the driving motor, a connecting shaft is also installed on the input shaft of the main pump body, the two connecting shafts cooperate with each other, the blades cooperate with the cooling component, a heat dissipation port is opened at the bottom of the driving motor, and a sound absorption component is installed at the heat dissipation port.

[0013] Further, the sound absorption component includes multiple groups of buffer plates, the buffer plates are installed equidistantly inside the heat dissipation port, multiple groups of buffer holes are provided on the buffer plates, and the buffer holes are respectively distributed on the buffer plates in a non-equidistant manner.

[0014] Further, the main pump body includes a high-level pump body and a low-level pump body, the high-level pump body and the low-level pump body cooperate with each other, a high-level rotor is installed inside the high-level pump body, a low-level rotor is installed inside the low-level pump body, the high-level rotor and the low-level shaft cooperate with each other, the high-level rotor is eccentrically arranged inside the high-level pump body, and the low-level rotor is also eccentrically arranged inside the low-level pump body.

[0015] Further, limiting grooves are respectively arranged on the high-level rotor and the low-level rotor. Two sets of vanes are respectively installed inside each group of limiting grooves. The vanes are slidably installed inside the limiting grooves, and an auxiliary spring is installed between the two sets of vanes.

[0016] Further, a controller is arranged on the main body of the vacuum pump. The controller is connected to the main body of the vacuum pump, and an operation panel is arranged on the controller.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. When the device is in use, it can monitor the oil state and liquid level in the fuel tank in real time, so that when in use, it is convenient for the staff to replace the lubricating oil, ensuring the vacuum pumping efficiency of the vacuum pump. At the same time, in addition to cooling the main pump body by the lubricating oil, the device can also cool the main pump body through the cooperation of the driving component and the cooling component, slowing down the oxidation of the lubricating oil;

[0019] 2. When the oil detection component is in use, it can detect the state of the lubricating oil and prevent the lubricating oil from emulsifying. Specifically, when in use, because there is lubricating oil in the fuel tank, the liquefied lubricating oil can impact the detection magnet to rotate when in use, causing the detection magnet to shift. When the detection magnet shifts, because the detection magnet cooperates with the matching magnet, it can drive the matching magnet to change together, making the matching magnet move towards the pressure sensing plate, thereby detecting the pressure received by the pressure sensing plate through the pressure sensing plate. When the pressure detected by the pressure sensing plate does not change for a long time, it means that the current position of the detection magnet is limited. When the lubricating oil emulsifies, the flow rate of the lubricating oil will slow down, thus restricting the detection magnet. Combining with the current liquid level of the liquid level monitoring component, it can be known whether the lubricating oil in the current fuel tank has emulsified;

[0020] 3. When the liquid level monitoring component is in use, it can monitor the liquid level in the fuel tank in real time. Specifically, when in use, because the monitoring tube is arranged inside the fuel tank, the lubricating oil will push the foam ring to move upward along the monitoring tube. When the foam ring moves upward, the monitoring magnet inside the foam ring will also move upward. When the monitoring magnet moves between the two magnetic reed switches, the magnetic force of the monitoring magnet will act on the two magnetic reed switches, causing the two magnetic reed switches to contact. When the two magnetic reed switches contact, they will transmit a signal to the controller, enabling the controller to know which interval the current liquid level is in, so as to cooperate with the oil detection component to detect the state and liquid level of the oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an isometric structural schematic diagram of the whole of the present invention;

[0022] Figure 2Schematic diagram of the connection structure between the fuel tank and the connection component of the present invention;

[0023] Figure 3 Schematic diagram of the connection structure between the main pump body and the connection component of the present invention;

[0024] Figure 4 Schematic diagram of the structure of the connection component of the present invention;

[0025] Figure 5 Schematic diagram of the structure of the drive component of the present invention;

[0026] Figure 6 Schematic diagram of the structure of the low-level pump body of the present invention;

[0027] Figure 7 Schematic diagram of the structure of the high-level pump body of the present invention;

[0028] Figure 8 Schematic diagram of the sectional structure of the fuel tank of the present invention;

[0029] Figure 9 Schematic diagram of the mating structure of the oil detection component of the present invention;

[0030] Figure 10 Schematic diagram of the internal structure of the liquid level monitoring component of the present invention;

[0031] Figure 11 For the present invention Figure 10 Enlarged schematic diagram at "A" in

[0032] In the figure: 1, vacuum pump main body; 11, fuel tank; 12, air inlet; 13, air outlet; 14, gas ballast valve; 15, oil filling port; 16, oil sight glass; 2, drive component; 21, drive motor; 22, connecting shaft; 23, blade; 3, connection component; 31, mounting bracket; 32, leg; 33, connecting plate; 4, main pump body; 41, high-level pump body; 411, high-level rotor; 42, low-level pump body; 421, low-level rotor; 43, limiting groove; 44, rotating vane; 5, cooling component; 51, semiconductor refrigeration sheet; 6, oil detection component; 61, mounting frame; 62, detection magnet; 63, mating magnet; 64, pressure sensing plate; 7, liquid level monitoring component; 71, monitoring tube; 72, foam ring; 721, monitoring magnet; 73, glass tube; 731, magnetic reed switch; 8, sound insulation component; 81, buffer plate; 9, controller. Detailed implementation manners

[0033] 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment: As Figures 1 - 11 shown, the present invention provides a technical solution for a vacuum pump with a noise reduction structure, including a vacuum pump main body 1 and a controller 9. The vacuum pump main body 1 includes a drive assembly 2, a connection assembly 3, an oil tank 11 and a main pump body 4. The main pump body 4 is installed in the oil tank 11. The drive assembly 2 is connected to the main pump body 4 through the connection assembly 3. The opening end of the oil tank 11 is connected to the connection assembly 3. A cooling assembly 5 is arranged in the connection assembly 3, and the cooling assembly 5 can cool the main pump body 4. An oil detection assembly 6 and a liquid level monitoring assembly 7 are arranged inside the oil tank 11. The oil detection assembly 6 can detect the viscosity of the lubricating oil, and the liquid level monitoring assembly 7 can detect the content of the oil.

[0035] When the device is in use, it can perform vacuum pumping on specific equipment. Specifically, when in use, the drive assembly 2 drives the high-level rotor 411 to rotate. Since the high-level rotor 411 cooperates with the low-level rotor 421, when rotating, the rotating slats 44 can inhale gas into the pump chamber, then compress the gas through the rotating slats 44, and finally discharge the gas from the pump body. When the drive assembly 2 is in use, since it will generate a certain amount of noise, the noise generated by the drive assembly 2 can be reduced through the noise reduction assembly 8. The connection assembly 3 of the device can assist in fitting the drive assembly 2 and the main pump body 4 together. At the same time, since the cooling assembly 5 is arranged inside the connection assembly 3, when the drive assembly 2 is working, it can cooperate with the cooling assembly 5 to cool the device. Since the oil tank 11 of the device is arranged outside the main pump body 4, the lubricating oil in the oil tank 11 can lubricate and cool the main pump body 4. Thus, in combination with the cooling assembly 5, it can effectively slow down the heating of the vacuum pump main body 1. Since there is lubricating oil in the oil tank 11, but the lubricating oil will be consumed during use. When the vacuum pump main body 1 does not change the lubricating oil for a long time, it will cause the lubricating oil to emulsify, which will not only reduce the lubrication efficiency and cooling efficiency, but also reduce the vacuum efficiency. Through the oil detection assembly 6 inside the oil tank 11, the state of the oil can be detected in real time. When the oil gradually emulsifies, the liquid level of the lubricating oil will also gradually decrease. Through the liquid level monitoring assembly 7, the current liquid level of the lubricating oil can be monitored. Thus, through the oil detection assembly 6 and the liquid level monitoring assembly 7, the current state of the lubricating oil and the liquid level of the lubricating oil can be judged in real time, so that the staff can replace the new lubricating oil in the oil tank 11. Thus, when the device is in use, the working efficiency of the vacuum pump main body 1 can be maintained.

[0036] As Figures 1 - 2 shown, in this embodiment, specifically, an air inlet 12, an exhaust port 13, a gas ballast valve 14 and an oil filling port 15 are provided above the fuel tank 11. A baffle is provided inside the fuel tank 11, and the baffle is installed above the main pump body 4. The air inlet 12, the exhaust port 13, the gas ballast valve 14 and the oil filling port 15 are respectively connected to the main pump body 4. Filters are respectively provided inside the air inlet 12 and the exhaust port 13. An oil sight glass 16 is provided on the side of the fuel tank 11, and the oil sight glass 16 cooperates with the liquid level monitoring component 7;

[0037] An air inlet 12, an exhaust port 13, a gas ballast valve 14 and an oil filling port 15 are provided above the fuel tank 11 of the device. The air inlet 12 can be connected to the equipment that needs to be evacuated, the exhaust port 13 can discharge the extracted gas, the gas ballast valve 14 can protect the safety of the device, and the staff can inject lubricating oil through the oil filling port 15. The staff can not only monitor the lubricating oil level through the liquid level monitoring component 7, but also observe the lubricating oil level through the oil sight glass 16.

[0038] As Figures 8 - 9 shown, in this embodiment, specifically, the oil detection component 6 includes multiple groups of mounting frames 61. Multiple groups of detection magnets 62 are installed between the mounting frames 61. The detection magnets 62 are installed between the mounting frames 61 through bearings. Multiple groups of mounting brackets 31 are installed at the bottom of the fuel tank 11. Multiple groups of mating magnets 63 are arranged between the mounting brackets 31. The detection magnets 62 and the mating magnets 63 repel each other. A pressure sensing plate 64 is installed at the bottom of the mounting bracket 31. The mating magnet 63 is in contact with the pressure sensing plate 64, and the pressure sensing plate 64 is connected to the controller 9;

[0039] When the oil detection component 6 of the device is in use, it can detect the state of the lubricating oil to prevent the lubricating oil from emulsifying. Specifically, when in use, since there is lubricating oil inside the fuel tank 11, the liquefied lubricating oil can hit the detection magnet 62 and rotate when in use, causing the detection magnet 62 to shift. When the detection magnet 62 shifts, because the detection magnet 62 cooperates with the mating magnet 63, it can drive the mating magnet 63 to change together, causing the mating magnet 63 to move towards the pressure sensing plate 64, so as to detect the pressure received through the pressure sensing plate 64. When the pressure detected by the pressure sensing plate 64 does not change for a long time, it means that the position of the current detection magnet 62 is limited. When the lubricating oil emulsifies, the flow rate of the lubricating oil will slow down, which will limit the detection magnet 62. By combining with the current liquid level of the liquid level monitoring component 7, it can be known whether the lubricating oil in the current fuel tank 11 has emulsified.

[0040] As Figures 10 - 11As shown, in this embodiment, specifically, the liquid level monitoring component 7 includes a monitoring pipe 71. The inside of the monitoring pipe 71 does not contact the inner surface of the oil tank. A plurality of foam rings 72 are installed outside the monitoring pipe 71, and a plurality of glass tubes 73 are installed inside the monitoring pipe 71. The foam rings 72 are externally plastic-sealed with a film. A monitoring magnet 721 is arranged in each foam ring 72, and two magnetic reed switches 731 are installed inside each glass tube 73. The monitoring magnet 721 cooperates with the two magnetic reed switches 731;

[0041] When the two magnetic reed switches 731 are in contact: the electrode transmits an electrical signal to the controller 9;

[0042] When the two magnetic reed switches 731 are not in contact; the electrode will not transmit a signal to the controller 9;

[0043] When the liquid level monitoring component 7 is in use, it can monitor the liquid level in the fuel tank 11 in real time. Specifically, in use, since the monitoring pipe 71 is arranged inside the fuel tank 11, the lubricating oil will push the foam ring 72 to move upward along the monitoring pipe 71. After the foam ring 72 moves upward, the monitoring magnet 721 inside the foam ring 72 will also move upward. When the monitoring magnet 721 moves between the two magnetic reed switches 731, the magnetic force of the monitoring magnet 721 will act on the two magnetic reed switches 731, causing the two magnetic reed switches 731 to come into contact. After the two magnetic reed switches 731 come into contact, they will transmit a signal to the controller 9, enabling the controller 9 to know the current liquid level range, so as to cooperate with the oil detection component 6 to detect the state and liquid level of the oil.

[0044] As Figures 1 - 4 As shown, in this embodiment, specifically, the connection component 3 includes a mounting frame 31. Legs 32 are installed at the bottom of the mounting frame 31. The two ends of the mounting frame 31 are respectively connected to the drive component 2, the main pump body 4, and the fuel tank 11. Air holes are provided at the bottom of the mounting frame 31, and connecting plates 33 are provided on both sides of the mounting frame 31. The cooling component 5 includes a plurality of semiconductor refrigeration chips 51, and the semiconductor refrigeration chips 51 are respectively arranged equidistantly inside the mounting frame 31;

[0045] When the connection component 3 of the device is in use, it can cooperate with the drive component 2, the main pump body 4, and the fuel tank 11 for connection. Since the connection component 3 is located between the drive component 2, the main pump body 4, and the fuel tank 11, the cooling component 5 between the mounting frames 31 can effectively cool the drive component 2, the main pump body 4, and the fuel tank 11. Specifically, in use, the semiconductor refrigeration chips 51 can emit cold air, and then cooperate with the drive component 2 of the device to direct the cold air, so as to cool the device faster.

[0046] As Figure 5As shown, in this embodiment, specifically, the driving assembly 2 includes a driving motor 21. A connecting shaft 22 and a blade 23 are installed at the output end of the driving motor 21. The input shaft of the main pump body 4 is also installed with a connecting shaft 22. The two connecting shafts 22 cooperate with each other. The blade 23 cooperates with the cooling assembly 5. A heat dissipation port is opened at the bottom of the driving motor 21, and a sound insulation assembly 8 is installed at the heat dissipation port;

[0047] When the driving assembly 2 of the device is in use, it mainly provides driving force for the main pump body 4. Specifically, when in use, the driving motor 21 can drive the connecting shaft 22 and the impeller to rotate. One end of the main pump body 4 is also provided with a connecting shaft 22, and the two connecting shafts 22 cooperate with each other. Thus, the driving assembly 2 can drive the connecting shaft 22 of the main pump body 4 to rotate together. When the blade 23 rotates, it can generate wind towards the main pump body 4, and then cooperate with the cooling assembly 5 to cool the main pump body 4. Since the driving motor 21 generates certain noise during use, the sound insulation assembly 8 at its bottom can reduce the noise generated by the driving motor 21.

[0048] As Figure 5 shown, in this embodiment, specifically, the sound insulation assembly 8 includes multiple buffer plates 81. The buffer plates 81 are equidistantly installed inside the heat dissipation port. Multiple buffer holes are provided on the buffer plates 81, and the buffer holes are respectively distributed on the buffer plates 81 at unequal distances;

[0049] When the sound insulation assembly 8 of the device is in use, it can reduce the noise generated by the driving motor 21. Specifically, when the heat dissipation port dissipates heat from the driving motor 21, the noise will be discharged from the driving motor 21 together with the hot air. The discharged gas will pass through the sound insulation assembly 8, and the noise transmitted together will be slowed down under the multiple buffering of the buffer plates 81. Since multiple buffer holes at unequal distances are provided on the buffer plates 81, the noise will be cut by the buffer holes when spreading with the gas, thereby achieving the effect of noise reduction.

[0050] As Figures 6 - 7 shown, in this embodiment, specifically, the main pump body 4 includes a high-level pump body 41 and a low-level pump body 42. The high-level pump body 41 and the low-level pump body 42 cooperate with each other. A high-level rotor 411 is installed inside the high-level pump body 41, and a low-level rotor 421 is installed inside the low-level pump body 42. The high-level rotor 411 cooperates with the low-level shaft. The high-level rotor 411 is eccentrically arranged inside the high-level pump body 41, and the low-level rotor 421 is also eccentrically arranged inside the low-level pump body 42;

[0051] When in use, the main pump body 4 of the device can play the main role of vacuum pumping. The main pump body 4 includes a high-level pump body 41 and a low-level pump body 42. Since the high-level pump body 41 is provided with a high-level rotor 411 and the low-level pump body 42 is provided with a low-level rotor 421, and the high-level rotor 411 and the low-level rotor 421 are respectively eccentrically arranged inside their pump bodies. Thus, when the high-level rotor 411 and the low-level rotor 421 rotate, they can draw in external gas and internal oil. Because the high-level rotor 411 and the low-level rotor 421 are respectively eccentrically arranged inside their pump bodies, the air will be gradually compressed, and then the device can be vacuumed.

[0052] As Figures 6 - 7 shown, in this embodiment, specifically, limiting grooves 43 are respectively arranged on the high-level rotor 411 and the low-level rotor 421. Two sets of vanes 44 are respectively installed inside each group of limiting grooves 43. The vanes 44 are slidably installed inside the limiting grooves 43, and an auxiliary spring is installed between the two sets of vanes 44;

[0053] Since limiting grooves 43 are respectively arranged on the high-level rotor 411 and the low-level rotor 421, and two sets of vanes 44 are arranged inside the limiting grooves 43. When the high-level rotor 411 and the low-level rotor 421 rotate, the vanes 44 will move inside the limiting grooves 43. And because there is lubricating oil in the high-level pump body 41 and the low-level pump body 42, when the vanes 44 move under the action of inertia, they will not damage the inner wall of the main pump body 4, because the lubricating oil can form an oil film on the inner wall of the main pump body 4 to prevent the inner wall from being damaged.

[0054] As Figure 1 and Figure 5 shown, in this embodiment, specifically, a controller 9 is arranged on the vacuum pump main body 1. The controller 9 is connected to the vacuum pump main body 1, and an operation panel is arranged on the controller 9;

[0055] When in use, the vacuum pump main body 1 can be controlled through the controller 9. And because an operation panel is arranged on the controller 9, thus, the staff can indirectly control and monitor the vacuum pump main body 1 through the operation panel.

[0056] Working principle: When in use, the device can evacuate specific equipment. Specifically, when in use, the driving component 2 drives the high-level rotor 411 to rotate. Since the high-level rotor 411 cooperates with the low-level rotor 421, when rotating, the rotating slats 44 can inhale gas into the pump chamber, then compress the gas through the rotating slats 44, and finally discharge the gas from the pump body. When the driving component 2 is in use, since it will generate a certain amount of noise, the silencing component 8 can reduce the noise generated by the driving component 2. The connecting component 3 of the device can assist in fitting the driving component 2 and the main pump body 4 together. At the same time, since a cooling component 5 is provided inside the connecting component 3, when the driving component 2 is working, it can cooperate with the cooling component 5 to cool the device. The fuel tank 11 of the device is arranged outside the main pump body 4, and the lubricating oil in the fuel tank 11 can lubricate and cool the main pump body 4. Thus, in combination with the cooling component 5, it can effectively slow down the heating of the vacuum pump main body 1. Since there is lubricating oil in the fuel tank 11, but the lubricating oil will be consumed during use. When the vacuum pump main body 1 does not change the lubricating oil for a long time, the lubricating oil will emulsify, which will not only reduce the lubrication efficiency and cooling efficiency, but also reduce the vacuum efficiency. Through the oil liquid detection component 6 inside the fuel tank 11, the state of the oil liquid can be detected in real time. When the oil liquid gradually emulsifies, the liquid level of the lubricating oil will also gradually decrease. The liquid level monitoring component 7 can monitor the current liquid level of the lubricating oil. Thus, through the oil liquid detection component 6 and the liquid level monitoring component 7, the state of the current lubricating oil and the liquid level of the lubricating oil can be judged in real time, so that the staff can replace the fuel tank 11 with new lubricating oil. Thus, when the device is in use, the working efficiency of the vacuum pump main body 1 can be maintained.

[0057] 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 without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. 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 claims involved.

Claims

1. A vacuum pump with a silencer structure, comprising a vacuum pump body (1) and a controller (9), characterized in that: The vacuum pump body (1) comprises a driving component (2), a connecting component (3), an oil tank (11) and a main pump body (4); the main pump body (4) is installed in the oil tank (11); the driving component (2) is connected to the main pump body (4) via the connecting component (3); the open end of the oil tank (11) is connected to the connecting component (3); a cooling component (5) is arranged in the connecting component (3); the cooling component (5) is capable of cooling the main pump body (4); an oil detection component (6) and a liquid level monitoring component (7) are arranged in the oil tank (11); the oil detection component (6) is capable of detecting the viscosity of the lubricating oil; and the liquid level monitoring component (7) is capable of detecting the content of the oil.

2. A vacuum pump with a silencer structure according to claim 1, characterized in that: An air inlet (12), an air outlet (13), a gas ballast valve (14) and an oil filling port (15) are arranged above the oil tank (11); an oil baffle is arranged inside the oil tank (11); the oil baffle is installed above the main pump body (4); the air inlet (12), the air outlet (13), the gas ballast valve (14) and the oil filling port (15) are respectively connected to the main pump body (4); filters are respectively arranged inside the air inlet (12) and the air outlet (13); an oil mirror (16) is arranged on the side of the oil tank (11); the oil mirror (16) cooperates with the liquid level monitoring component (7).

3. A vacuum pump with a silencer structure according to claim 2, characterized in that: The oil detection assembly (6) comprises a plurality of mounting frames (61), a plurality of detection magnets (62) are mounted between the mounting frames (61), the detection magnets (62) are mounted between the mounting frames (61) via bearings, a plurality of mounting frames (31) are mounted at the bottom of the oil tank (11), a plurality of matching magnets (63) are arranged between the mounting frames (31), the detection magnets (62) and the matching magnets (63) repel each other, a pressure sensing plate (64) is mounted at the bottom of the mounting frame (31), the matching magnets (63) are in contact with the pressure sensing plate (64), and the pressure sensing plate (64) is connected to the controller (9).

4. A vacuum pump with a silencer structure according to claim 3, characterized in that: The liquid level monitoring assembly (7) comprises a monitoring tube (71), the interior of the monitoring tube (71) does not contact the inner surface of the oil tank, a plurality of groups of foam rings (72) are installed on the outside of the monitoring tube (71), a plurality of groups of glass tubes (73) are installed inside the monitoring tube (71), the foam rings (72) are plastic-sealed with a film, a monitoring magnet (721) is arranged inside each group of the foam rings (72), two groups of magnetic reed sheets (731) are installed inside each group of the glass tubes (73), and the monitoring magnet (721) cooperates with the two groups of magnetic reed sheets (731); When the two groups of magnetic reed sheets (731) are in contact: the electrodes transmit electrical signals to the controller (9); When the two sets of magnetic reed sheets (731) are not in contact, the electrodes will not transmit any signal to the controller (9).

5. A vacuum pump with a silencer structure according to claim 4, characterized in that: The connecting component (3) includes a mounting frame (31), a support leg (32) is installed at the bottom of the mounting frame (31), two ends of the mounting frame (31) are respectively connected to the driving component (2), the main pump body (4) and the oil tank (11), the bottom of the mounting frame (31) is provided with air holes, and the two sides of the mounting frame (31) are provided with connecting plates (33), and the cooling component (5) includes a plurality of groups of semiconductor cooling plates (51), and the semiconductor cooling plates (51) are respectively and equidistantly arranged inside the mounting frame (31).

6. A vacuum pump with a silencer structure according to claim 5, characterized in that: The driving assembly (2) comprises a driving motor (21), the output end of the driving motor (21) is equipped with a connecting shaft (22) and a blade (23), the input shaft of the main pump body (4) is also equipped with a connecting shaft (22), the two groups of connecting shafts (22) cooperate with each other, the blade (23) cooperates with the cooling assembly (5), and a heat dissipation port is provided at the bottom of the driving motor (21), and a silencer assembly (8) is installed on the heat dissipation port.

7. A vacuum pump with a silencer structure according to claim 6, characterized in that: The silencer assembly (8) comprises a plurality of groups of buffer plates (81), the buffer plates (81) being installed at equal distances inside the heat dissipation port, and a plurality of groups of buffer holes being arranged on the buffer plates (81), the buffer holes being distributed at unequal distances on the buffer plates (81).

8. A vacuum pump with a silencer structure according to claim 7, characterized in that: The main pump body (4) includes a high-stage pump body (41) and a low-stage pump body (42). The high-stage pump body (41) and the low-stage pump body (42) cooperate with each other. A high-stage rotor (411) is installed inside the high-stage pump body (41), and a low-stage rotor (421) is installed inside the low-stage pump body (42). The high-stage rotor (411) cooperates with the low-stage shaft. The high-stage rotor (411) is eccentrically arranged in the high-stage pump body (41), and the low-stage rotor (421) is also eccentrically arranged in the low-stage pump body (42).

9. A vacuum pump with a silencer structure according to claim 8, characterized in that: The high-stage rotor (411) and the low-stage rotor (421) are respectively provided with limit slots (43), and two groups of rotary vanes (44) are respectively installed inside each group of the limit slots (43). The rotary vanes (44) are slidably installed inside the limit slots (43), and an auxiliary spring is installed between the two groups of rotary vanes (44).

10. A vacuum pump with a silencer structure according to claim 9, characterized in that: The controller (9) is arranged on the vacuum pump body (1), the controller (9) is connected to the vacuum pump body (1), and an operation panel is arranged on the controller (9).

Images