A permanent magnet micro-oil screw vacuum pump

Abstract

The utility model discloses a permanent magnetic micro-oil screw vacuum pump, which relates to the field of vacuum pumps, including a shell, a main engine is provided at the bottom of the shell, a motor is provided at one end of the main engine, a heat dissipation port is opened at the top of the shell, a heat dissipation pipe is fixedly provided at one side of the shell, a heat dissipation assembly is provided at the top and one side of the shell, the heat dissipation assembly includes a bellows that can be telescopically bent, and a fan is fixedly provided at the top of the bellows. The utility model suspends the fan at the bottom of the bracket by a connecting rope, and connects the fan and the shell by a bellows. While the fan drives the air flow for heat dissipation, there is no rigid connection between the fan and the shell, and only the bellows and the connecting rope are softly connected. Therefore, the vibration of the fan during operation will cause the bellows and the connecting rope to swing and twist, which has little impact on the oil and gas barrel, thereby avoiding the vibration of the fan from causing adverse effects on the vacuum pump body.

Description

Technical Field

[0001] The utility model relates to the field of vacuum pumps, in particular to a permanent magnet micro-oil screw vacuum pump. Background Art

[0002] A screw pump is a positive displacement pump that operates continuously through a pump chamber formed between a rotating spiral rotor and a stator. As the rotor rotates in the stator, it continuously draws gas into the pump chamber, and the rotation of the rotor compresses the gas and delivers it to the outlet.

[0003] Screw pumps have the advantages of high vacuum and low noise, so they are often used in chemical, pharmaceutical, semiconductor and other fields that have high requirements for vacuum and cleanliness. During use, the screw pump will emit a certain amount of heat. In order to avoid excessive temperature, the screw pumps in the prior art are equipped with a heat dissipation structure, such as a permanent magnet variable frequency screw vacuum pump with publication number CN215058169U.

[0004] In the prior art, a fan is generally used to drive air flow for heat dissipation. However, the fan is installed on the casing of the pump, and the vibration of the fan during operation will have an adverse effect on the screw pump body. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a permanent magnet micro-oil screw vacuum pump, which dissipates heat by driving the air flow through a fan. At the same time, there is no rigid connection between the fan and the casing, but only a soft connection with a bellows and a connecting rope. Therefore, the vibration of the fan during operation will cause the bellows and the connecting rope to swing and twist, which has little impact on the oil and gas barrel, thereby avoiding the vibration of the fan from having an adverse effect on the vacuum pump body, and can effectively solve the problems in the background technology.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a permanent magnetic micro-oil screw vacuum pump, comprising a shell, a main engine is arranged at the bottom of the shell, a motor is arranged at one end of the main engine, a heat dissipation port is opened at the top of the shell, and a heat dissipation pipe is fixedly arranged at one side of the shell;

[0007] The top and one side of the housing are both provided with heat dissipation components, the heat dissipation components include a bellows that can be telescopically bent, a fan is fixedly provided at the top of the bellows, and a connecting pipe is fixedly provided at the bottom of the bellows, and the two connecting pipes are respectively connected to the heat dissipation pipe and the heat dissipation port through flanges;

[0008] Two brackets are arranged on the top of the heat dissipation component. The heat dissipation component also includes two connecting ropes fixedly arranged at the bottom end of each bracket. The bottom end of the connecting rope is fixedly connected to the fan. The bracket is fixedly arranged on the outer shell.

[0009] Furthermore, a spring is provided on the connecting rope, and end plates are fixedly provided at both ends of the spring. The end plates are fixedly provided on the connecting rope, and the elastic force of the spring has a buffering effect on the fan.

[0010] Furthermore, a frequency converter and an oil and gas barrel are provided inside the shell, a discharge pipe extending to the top of the shell is fixedly provided on the top of the oil and gas barrel, a feed pipe extending to the top of the shell is fixedly provided on the shell, and the vacuum pump is connected to the pipeline through the discharge pipe and the feed pipe.

[0011] Furthermore, a touch screen and an emergency stop button are fixedly provided on the front side of the housing;

[0012] The shell is internally provided with an aluminum fin radiator located at the bottom of the heat dissipation port, an air supply filter, an oil filter, an oil filter seat, and an air supply solenoid valve. An oil sight glass is fixedly provided on one side of the oil and gas barrel. The aluminum fin radiator can increase the heat dissipation area of ​​the vacuum pump.

[0013] Furthermore, a filter assembly is provided at the top of the feed pipe, and the filter assembly includes a filter box. A lower connecting pipe connected to the feed pipe through a flange is fixedly provided at the bottom end of the filter box to facilitate disassembly. A cover plate is provided at the top of the filter box, and a connecting ring connected to the inner wall of the filter box through a thread is fixedly provided at the bottom end of the cover plate, and an upper connecting pipe is fixedly provided at the top of the cover plate.

[0014] Furthermore, a net bag is provided inside the filter box, through which dust and impurities in the air are filtered, a fixing ring is fixedly provided at the top of the net bag, and a gasket fixed to the inner wall of the filter box is provided at the bottom of the fixing ring.

[0015] Compared with the prior art, the utility model provides a permanent magnet micro-oil screw vacuum pump, which has the following beneficial effects:

[0016] The fan is hung at the bottom of the bracket with a connecting rope, and the fan and the casing are connected by a bellows. While the fan drives the air flow for heat dissipation, there is no rigid connection between the fan and the casing, only a soft connection with the bellows and the connecting rope. Therefore, the vibration of the fan during operation will cause the bellows and the connecting rope to swing and twist, which has little impact on the oil and gas barrel, thereby avoiding the vibration of the fan from causing adverse effects on the vacuum pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The main view of the utility model Figure 1 ;

[0018] Figure 2 The main view of the utility model Figure 2 ;

[0019] Figure 3 The internal structure of the shell of the utility model Figure 1 ;

[0020] Figure 4 The internal structure of the shell of the utility model Figure 2 ;

[0021] Figure 5 This is a front view of the heat dissipation component of the utility model;

[0022] Figure 6 For the utility model Figure 5 Enlarged view of part A in the middle;

[0023] Figure 7 This is a diagram showing the internal structure of the filter assembly of the present utility model.

[0024] In the figure: 1. Shell; 2. Discharge pipe; 3. Feed pipe; 4. Touch screen; 5. Heat dissipation pipe; 6. Heat dissipation component; 601. Fan; 602. Bellows; 603. Connecting pipe; 604. Connecting rope; 605. End plate; 606. Spring; 7. Filter component; 701. Filter box; 702. Cover plate; 703. Fixing ring; 704. Net bag; 8. Inverter; 9. Motor; 10. Heat dissipation port; 11. Oil and gas barrel; 12. Main unit. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention will be further described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figure 1-7 As shown, the utility model provides a permanent magnetic micro-oil screw vacuum pump, comprising a shell 1, the outer end of the shell 1 is provided with a heat dissipation net, the bottom end of the shell 1 is provided with a host 12, one end of the host 12 is provided with a motor 9, the top of the shell 1 is provided with a heat dissipation port 10, and one side of the shell 1 is fixedly provided with a heat dissipation pipe 5;

[0027] The top and one side of the housing 1 are provided with a heat dissipation assembly 6, and the heat dissipation assembly 6 includes a bellows 602 that can be extended and bent, a fan 601 is fixedly provided at the top of the bellows 602, and a connecting pipe 603 is fixedly provided at the bottom of the bellows 602. The two connecting pipes 603 are respectively connected to the heat dissipation pipe 5 and the heat dissipation port 10 through flanges;

[0028] The heat dissipation component 6 is provided with two brackets on the top. The heat dissipation component 6 also includes two connecting ropes 604 fixedly arranged at the bottom end of each bracket. The bottom end of the connecting rope 604 is fixedly connected to the fan 601. The bracket is fixedly arranged on the housing 1.

[0029] The connecting rope 604 is provided with a spring 606 , and both ends of the spring 606 are fixed with end plates 605 . The end plates 605 are fixed on the connecting rope 604 . The elastic force of the spring 606 further buffers the vibration of the fan 601 .

[0030] During use, the fan 601 is turned on, and the air flow is driven by the fan 601 to draw the hot air inside the shell 1 outward through the heat dissipation port 10 and the heat dissipation pipe 5. In order to maintain the balance of air pressure, the external cold air enters the shell 1 through the heat dissipation net to dissipate the heat of the heat-generating components inside the shell 1. After the hot air is drawn out through the heat dissipation pipe 5 and the heat dissipation port 10, it first enters the connecting pipe 603 and the bellows 602, and then is discharged under the action of the fan 601. The fan 601 is suspended on the bracket by the connecting rope 604, and the bellows 602 can be stretched and bent. Therefore, there is no rigid connection between the fan 601 and the shell 1, only the bellows 602 and the connecting rope 604 are softly connected. Therefore, the vibration of the fan 601 during operation will cause the bellows 602 and the connecting rope 604 to swing and twist, which has little effect on the oil and gas barrel 11, thereby avoiding the vibration of the fan 601 from causing adverse effects on the vacuum pump body.

[0031] The vacuum pump is connected to the pipeline for application, such as Figure 1-4 As shown, a frequency converter 8 and an oil and gas barrel 11 are provided inside the shell 1, a discharge pipe 2 extending to the top of the shell 1 is fixedly provided on the top of the oil and gas barrel 11, and a feed pipe 3 extending to the top of the shell 1 is fixedly provided on the shell 1, and the vacuum pump is connected to the pipeline through the discharge pipe 2 and the feed pipe 3.

[0032] A touch screen 4 and an emergency stop button are fixedly disposed on the front side of the housing 1;

[0033] The shell 1 is provided with an aluminum fin radiator, an air supply filter, an oil filter, an oil filter seat, and an air supply solenoid valve located at the bottom of the heat dissipation port 10. An oil sight glass is fixedly provided on one side of the oil and gas barrel 11. The aluminum fin radiator can increase the heat dissipation area of ​​the vacuum pump.

[0034] During use, the discharge pipe 2 and the feed pipe 3 are connected to the pipeline, and the air enters the vacuum pump through the feed pipe 3, and is discharged through the discharge pipe 2 after being compressed. The operation of the vacuum pump is controlled by the touch screen 4. In case of emergency, the vacuum pump can be quickly stopped by pressing the emergency stop button.

[0035] Before the air is inhaled, it needs to be filtered, such as Figure 1 , 7 As shown, a filter assembly 7 is provided at the top of the feed pipe 3, and the filter assembly 7 includes a filter box 701. A lower connecting pipe connected to the feed pipe 3 through a flange is fixedly provided at the bottom end of the filter box 701 for easy disassembly. A cover plate 702 is provided at the top of the filter box 701. A connecting ring connected to the inner wall of the filter box 701 through a thread is fixedly provided at the bottom end of the cover plate 702. An upper connecting pipe is fixedly provided at the top of the cover plate 702.

[0036] A net bag 704 is provided inside the filter box 701 , and dust impurities in the air are filtered through the net bag 704 . A fixing ring 703 is fixedly provided at the top of the net bag 704 , and a gasket fixed to the inner wall of the filter box 701 is provided at the bottom of the fixing ring 703 .

[0037] The filter assembly 7 is installed on the feed pipe 3. The air entering the vacuum pump first enters the filter assembly 7. The air enters the filter box 701 through the upper connecting pipe, and then passes through the net bag 704. The net bag 704 removes solid impurities in the air, and then the filtered air is discharged through the lower connecting pipe and enters the feed pipe 3, so as to avoid dust and impurities causing damage to the vacuum pump. The cover plate 702 can be disassembled and separated from the filter box 701, which is convenient for cleaning or replacing the net bag 704.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A permanent magnetic micro-oil screw vacuum pump, comprising a housing (1), a main engine (12) being arranged at the bottom of the housing (1), and a motor (9) being arranged at one end of the main engine (12), characterized in that: The top of the housing (1) is provided with a heat dissipation port (10), and a heat dissipation pipe (5) is fixedly provided on one side of the housing (1); The top and one side of the housing (1) are both provided with a heat dissipation component (6), the heat dissipation component (6) comprising a bellows (602) capable of being extended and bent, a fan (601) being fixedly provided at the top end of the bellows (602), a connecting pipe (603) being fixedly provided at the bottom end of the bellows (602), the two connecting pipes (603) being respectively connected to the heat dissipation pipe (5) and the heat dissipation port (10) via flanges; The heat dissipation component (6) is provided with two brackets on the top. The heat dissipation component (6) also includes two connecting ropes (604) fixedly arranged at the bottom end of each bracket. The bottom end of the connecting rope (604) is fixedly connected to the fan (601). The bracket is fixedly arranged on the outer casing (1).

2. A permanent magnetic micro-oil screw vacuum pump according to claim 1, characterized in that: The connecting rope (604) is provided with a spring (606), and both ends of the spring (606) are fixedly provided with end plates (605), and the end plates (605) are fixedly provided on the connecting rope (604).

3. A permanent magnetic micro-oil screw vacuum pump according to claim 1, characterized in that: A frequency converter (8) and an oil and gas barrel (11) are arranged inside the shell (1); a discharge pipe (2) extending to the top of the shell (1) is fixedly arranged on the top of the oil and gas barrel (11); and a feed pipe (3) extending to the top of the shell (1) is fixedly arranged on the shell (1).

4. A permanent magnetic micro-oil screw vacuum pump according to claim 1, characterized in that: A touch screen (4) and an emergency stop button are fixedly provided on the front side of the housing (1); An aluminum fin radiator, an air supply filter, an oil filter, an oil filter seat, and an air supply solenoid valve are arranged inside the housing (1) and are located at the bottom of the heat dissipation port (10). An oil sight glass is fixedly arranged on one side of the oil and gas barrel (11).

5. A permanent magnetic micro-oil screw vacuum pump according to claim 3, characterized in that: A filter assembly (7) is provided at the top end of the feed pipe (3), and the filter assembly (7) comprises a filter box (701). A lower connecting pipe connected to the feed pipe (3) via a flange is fixedly provided at the bottom end of the filter box (701). A cover plate (702) is provided at the top end of the filter box (701). A connecting ring connected to the inner wall of the filter box (701) via a thread is fixedly provided at the bottom end of the cover plate (702), and an upper connecting pipe is fixedly provided at the top end of the cover plate (702).

6. A permanent magnetic micro-oil screw vacuum pump according to claim 5, characterized in that: A net bag (704) is provided inside the filter box (701), a fixing ring (703) is fixedly provided at the top end of the net bag (704), and a gasket fixed on the inner wall of the filter box (701) is provided at the bottom end of the fixing ring (703).

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