Energy-efficient dry screw vacuum pump

Abstract

The utility model relates to the related field of screw vacuum pump, specifically disclose a kind of high-efficiency energy-saving dry screw vacuum pump, including slow gas compression box, exhaust head, vacuum pump body, suction head and motor, one end of the vacuum pump body is connected with slow gas compression box by connector, the inside of the vacuum pump body is equipped with first screw and second screw of mutual gear transmission control, the both sides of the vacuum pump body are equipped with suction head, the other end side of the vacuum pump body is equipped with motor. The utility model's vacuum pump body both sides are equipped with suction head, two suction heads can be bidirectional suction, slow gas compression box is equipped at the end of vacuum pump body, gas can be cached by slow gas compression box, the gas inhaled can be cached and compressed, so that the air intensity of discharge is higher, the gas discharged has greater kinetic energy, can save energy, slow gas compression box is equipped with piston plate controlled by telescopic link, and piston plate separates compression cavity and power drive cavity.

Description

Technical Field

[0001] This utility model relates to the field of screw vacuum pumps, specifically a high-efficiency and energy-saving dry screw vacuum pump. Background Technology

[0002] Screw vacuum pumps are pumping devices that use a pair of screws to rotate synchronously and at high speed in opposite directions in the pump casing to generate suction and exhaust. They are a replacement product for oil-sealed vacuum pumps and can pump gases containing a large amount of water vapor and a small amount of dust. They are widely used in domestic pharmaceutical, chemical, semiconductor and other industries with high requirements for clean vacuum.

[0003] For example, the authorized patent with publication number CN205117725U (Screw Vacuum Pump with Dust Cleaning Function): The pump body has a front end cover and a rear end cover sealed at both ends. The pump chamber contains a spiral rotor with a shaft extending into the front and rear end covers. An air inlet communicating with the pump chamber is located on the side of the pump body near the front end cover, and an exhaust channel communicating with the pump chamber is located on the rear end cover. An exhaust port is located on the exhaust channel. A dust scraping groove is provided on the spiral rotor at regular intervals. The advantages are: preventing dust accumulation on the surface of the pump chamber in the rotor area, preventing wear of components inside the pump chamber, and effectively improving the service life of the vacuum pump;

[0004] The aforementioned existing screw vacuum pumps cannot perform bidirectional intake control, and the discharged gas cannot be buffered and compressed, resulting in insufficient gas discharge intensity, inability to accelerate the discharge process, and low exhaust efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency and energy-saving dry screw vacuum pump to solve the problems mentioned in the background art, such as the inability of screw vacuum pumps to perform bidirectional intake control, the inability to buffer and compress the discharged gas, resulting in insufficient gas discharge intensity, inability to accelerate the discharge process, and low exhaust efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency and energy-saving dry screw vacuum pump, comprising a gas compression chamber, an exhaust head, a vacuum pump body, an intake head, and a motor. One end of the vacuum pump body is connected to the gas compression chamber via a connector. The vacuum pump body is internally provided with a first screw and a second screw controlled by mutual gear transmission. Intake heads are provided on both sides of the vacuum pump body, and a motor is provided on one side of the other end of the vacuum pump body.

[0007] In a further embodiment, a motor mounting port is provided on one end of the vacuum pump body, and the motor is mounted on the motor mounting port by bolts.

[0008] In a further embodiment, the ends of the first screw and the second screw are respectively provided with a driving gear and a driven gear, and the driving gear and the driven gear are connected by a gear transmission.

[0009] In a further embodiment, the first screw and the second screw are spaced apart and are configured to rotate in opposite directions.

[0010] In a further embodiment, the slow-release compression box includes a compression chamber, a power drive chamber, a piston plate, and a telescopic rod;

[0011] The piston plate is located inside the slow-release compression chamber. The power drive chamber and the compression chamber are located on both sides of the piston plate. The telescopic rod is located at the end of the piston plate and is located inside the telescopic sleeve. The telescopic sleeve is located at the end of the inner cavity of the slow-release compression chamber.

[0012] In a further embodiment, the end of the vacuum pump body is provided with a first exhaust port and a second exhaust port, and the first exhaust port and the second exhaust port are respectively provided with a compression chamber and a power drive chamber.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The vacuum pump body of this utility model is equipped with suction heads on both sides, which can be used for bidirectional air intake. A gas buffering and compression box is provided at the end of the vacuum pump body. The gas buffering and compression box can buffer and compress the gas, so that the exhaust air intensity is higher and the exhaust gas has greater kinetic energy, which can save energy.

[0015] 2. The gas compression chamber of this utility model is equipped with a piston plate controlled by a telescopic rod. The piston plate separates the compression chamber and the power drive chamber, so that the gas drawn in can be separated and compressed by the piston plate. It is convenient to use and can improve the efficiency of gas discharge. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a high-efficiency and energy-saving dry screw vacuum pump according to the present invention;

[0017] Figure 2 This is a front view of one end of the vacuum pump body of this utility model;

[0018] Figure 3 This is a front view of the other end of the vacuum pump body of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the slow-release air compression box of this utility model.

[0020] In the diagram: 1. Gas compression chamber; 2. Exhaust head; 3. Vacuum pump body; 4. First screw; 5. Intake head; 6. Drive gear; 7. Motor; 8. Driven gear; 9. Second screw; 10. Motor mounting port; 11. First exhaust port; 12. Telescopic sleeve; 13. Telescopic rod; 14. Piston plate; 15. Compression chamber; 16. Power drive chamber; 17. Second exhaust port. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4 This utility model provides an embodiment of a high-efficiency and energy-saving dry screw vacuum pump, comprising a gas easing and compression box 1, an exhaust head 2, a vacuum pump body 3, an intake head 5, and a motor 7. One end of the vacuum pump body 3 is connected to the gas easing and compression box 1 via a connector. The vacuum pump body 3 is equipped with a first screw 4 and a second screw 9 that are mutually controlled by gear transmission. Intake heads 5 are provided on both sides of the vacuum pump body 3, and a motor 7 is provided on one side of the other end of the vacuum pump body 3. The gas easing and compression box 1 is used to easing the gas intake. The first screw 4 and the second screw 9 interact to control the intake and delivery of air. The motor 7 drives the first screw 4 and the second screw 9 to rotate simultaneously under the action of gear transmission.

[0023] The vacuum pump body 3 has a motor mounting port 10 on one side of its end. The motor 7 is mounted on the motor mounting port 10 by bolts, which facilitates the installation and fixation of the motor 7.

[0024] The ends of the first screw 4 and the second screw 9 are respectively provided with a driving gear 6 and a driven gear 8, and the driving gear 6 and the driven gear 8 are connected by gear transmission. This kind of driving gear 6 and driven gear 8 facilitates the rotation of the first screw 4 and the second screw 9. There is a gap between the first screw 4 and the second screw 9, and the first screw 4 and the second screw 9 are set to rotate in opposite directions.

[0025] The slow-release air compression chamber 1 includes a compression chamber 15, a power drive chamber 16, a piston plate 14, and a telescopic rod 13. The piston plate 14 is located inside the slow-release air compression chamber 1. The power drive chamber 16 and the compression chamber 15 are respectively located on both sides of the piston plate 14. The telescopic rod 13 is located at the end of the piston plate 14 and is located inside the telescopic sleeve 12. The telescopic sleeve 12 is located at the end of the inner cavity of the slow-release air compression chamber 1. The power drive chamber 16 and the compression chamber 15 respectively perform power drive and air compression processing. The telescopic rod 13 facilitates the pushing and control of the piston plate 14.

[0026] The vacuum pump body 3 has a first exhaust port 11 and a second exhaust port 17 at its end, and the first exhaust port 11 and the second exhaust port 17 are respectively provided with the compression chamber 15 and the power drive chamber 16.

[0027] Working principle: During use, the motor 7 drives the drive gear 6 to rotate, which in turn drives the driven gear 8 to rotate in opposite directions, causing the first screw 4 and the second screw 9 to rotate in opposite directions. This allows for negative pressure air intake, enabling external air to be drawn in through both intake heads 5 simultaneously. The air is then discharged into the compression chamber 15 and the power drive chamber 16 through the first exhaust port 11 and the second exhaust port 17, respectively. The gas in the power drive chamber 16 drives the piston plate 14, which in turn compresses the gas in the compression chamber 15 and accelerates its discharge through the exhaust head 2.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-efficiency energy-saving dry screw vacuum pump, comprising a buffer gas compression box (1), an exhaust head (2), a vacuum pump body (3), a suction head (5) and a motor (7), characterized in that: One end of the vacuum pump body (3) is connected to the gas compression box (1) via a connector. The vacuum pump body (3) is equipped with a first screw (4) and a second screw (9) that are controlled by mutual gear transmission. Both sides of the vacuum pump body (3) are equipped with suction heads (5). The other end of the vacuum pump body (3) is equipped with a motor (7).

2. The high-efficiency energy-saving dry screw vacuum pump according to claim 1, characterized in that: The vacuum pump body (3) has a motor mounting port (10) on one side of its end, and the motor (7) is mounted on the motor mounting port (10) by bolts.

3. The high-efficiency energy-saving dry screw vacuum pump according to claim 1, characterized in that: The ends of the first screw (4) and the second screw (9) are respectively provided with a driving gear (6) and a driven gear (8), and the driving gear (6) and the driven gear (8) are connected by gear transmission.

4. The energy-efficient dry screw vacuum pump of claim 1, wherein: The first screw (4) and the second screw (9) are spaced apart and are rotated in opposite directions.

5. The energy-efficient dry screw vacuum pump of claim 1, wherein: The gas compression box (1) includes a compression chamber (15), a power drive chamber (16), a piston plate (14), and a telescopic rod (13); The piston plate (14) is located inside the gas compression chamber (1). The power drive chamber (16) and the compression chamber (15) are located on both sides of the piston plate (14). The telescopic rod (13) is located at the end of the piston plate (14) and is located inside the telescopic sleeve (12). The telescopic sleeve (12) is located at the end of the inner cavity of the gas compression chamber (1).

6. The energy-efficient dry screw vacuum pump of claim 1, wherein: The vacuum pump body (3) has a first exhaust port (11) and a second exhaust port (17) at its end, and the first exhaust port (11) and the second exhaust port (17) are respectively provided with the compression chamber (15) and the power drive chamber (16).

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