High-sealing screw vacuum pump

Abstract

The utility model discloses a high sealing screw vacuum pump, relates to screw vacuum pump technical field, including heat dissipation mechanism, the inside of heat dissipation mechanism is sleeved with connecting mechanism, the right side of heat dissipation mechanism is fixedly connected with pump body mechanism, heat dissipation mechanism includes support plate and heat dissipation fin, the surface of support plate is provided with connecting hole, the heat dissipation fin is connected with the pump body mechanism. And an electric rotating rod is rotationally connected to the supporting plate, fan blades are fixedly connected to the surface of the electric rotating rod, and the cooling fins are located on the right sides of the fan blades. The heat dissipation fins are fixed to the rear cover, then heat in the shell is guided out, then the electric rotating rod is started to drive the fan blades to rotate, air is blown into the shell, heat dissipation treatment is conducted on the pump body mechanism, meanwhile, the air is blown to the surfaces of the heat dissipation fins, the heat dissipation strength of the heat dissipation fins is improved, the heat dissipation effect of the vacuum pump is improved, and the service life of the vacuum pump is prolonged. And heat in the vacuum pump is reduced, and the vacuum pump is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of screw vacuum pumps, in particular to a high-sealing screw vacuum pump. Background Art

[0002] The screw vacuum pump is an exhaust device that uses a pair of screws to rotate synchronously at high speed in opposite directions in the pump casing to produce suction and exhaust effects. It is an upgraded version of the oil-sealed vacuum pump and can extract gases containing a large amount of water vapor and a small amount of dust. It is widely used in domestic pharmaceutical, chemical, semiconductor and other corporate fields that have high requirements for clean vacuum.

[0003] The existing screw vacuum pump only relies on the heat dissipation holes of the rear shell to discharge the internal heat. If the heat dissipation holes cannot meet the requirements of the vacuum pump, the internal temperature of the vacuum pump will increase, and the vacuum pump will be damaged. Summary of the invention

[0004] The utility model aims to provide a high-seal screw vacuum pump to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A high-sealing screw vacuum pump comprises a heat dissipation mechanism, wherein a connecting mechanism is sleeved inside the heat dissipation mechanism, and a pump body mechanism is fixedly connected to the right side of the heat dissipation mechanism.

[0007] The heat dissipation mechanism includes a support plate and heat dissipation fins. A connection hole is opened on the surface of the support plate. An electric rotating rod is rotatably connected to the support plate. A fan blade is fixedly connected to the surface of the electric rotating rod. The heat dissipation fins are located on the right side of the fan blade.

[0008] A further improvement of the technical solution of the utility model is that the connecting mechanism includes a support rod, the support rod is inserted into the inside of the connecting hole, the tail end of the support rod is fixedly connected with a bolt, and the bolt is fixed to the tail end of the support rod, so that when A Zi rotates the support rod, the bolt is driven to rotate synchronously.

[0009] A further improvement of the technical solution of the utility model is that: an insert rod is sleeved inside the bolt, and a rubber pad is fixedly connected to the tail end of the insert rod. The rubber pad is sleeved inside the bolt, and the rubber pad increases the friction with the inside of the bolt, thereby improving the fixing strength of the bolt.

[0010] A further improvement of the technical solution of the utility model is that the pump body mechanism includes an outer shell, the bottom of the outer shell is fixedly connected to a support leg, the left side of the outer shell is fixedly connected to a sealing strip, the outer side of the sealing strip is sleeved with a back cover, and the surface of the back cover is provided with heat dissipation holes, and the heat inside the vacuum pump is discharged through the heat dissipation holes, thereby reducing the internal temperature.

[0011] A further improvement of the technical solution of the utility model is that: the rear cover is fixedly connected to the heat dissipation fins, the rear cover and the outer shell are both threadedly connected with bolts, the outer shell is symmetrically provided with exhaust ports and air inlets at the upper and lower parts, and the exhaust ports and the air inlets are both provided with control valves, so that the opening and closing of the exhaust ports and the air inlets can be controlled by opening and closing the control valves.

[0012] A further improvement of the technical solution of the utility model is that an active screw is arranged inside the shell, one end of the active screw is fixedly connected to a connecting rod, and the component to be rotated is fixed to the connecting rod, so that when the active screw rotates, it can be driven to rotate.

[0013] A further improvement of the technical solution of the utility model is that: the connecting rod extends to the right side of the shell, a driven screw is arranged on the surface of the active screw, and the driving assembly inside the screw vacuum pump drives the active screw to rotate, that is, the active screw drives the driven screw in contact with its surface to rotate.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] The utility model provides a high-sealing screw vacuum pump. The heat generated when the vacuum pump is running is discharged through the heat dissipation holes. The heat dissipation fins are fixed on the rear cover, thereby dissipating the heat in the outer shell. Subsequently, the electric rotating rod is started to drive the fan blades to rotate, thereby blowing wind into the interior of the outer shell to dissipate heat for the pump body mechanism. At the same time, the wind is blown to the surface of the heat dissipation fins, thereby improving the heat dissipation strength of the heat dissipation fins themselves, thereby improving the heat dissipation effect of the vacuum pump, reducing the heat inside the vacuum pump, and protecting it.

[0016] The utility model provides a high-sealing screw vacuum pump, wherein a support rod is screwed into a rear cover, a bolt at the rear end of the support rod is connected to an inner thread of the rear cover, and then an insertion rod is inserted from the rear cover into the inner part of the bolt, the outer part of the insertion rod is a rubber pad, thereby increasing the friction between the bolt and the rear cover, and the heat dissipation mechanism can be fixed, the insertion rod is pulled out, and then the support rod is rotated to drive the bolt to move out of the inner part of the rear cover, and the heat dissipation mechanism can be dismantled, thereby achieving the purpose of easy disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the heat dissipation mechanism structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the connection mechanism structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the pump body structure of the utility model.

[0021] In the figure: 1. heat dissipation mechanism; 11. support plate; 12. connection hole; 13. electric rotating rod; 14. fan blade; 15. heat dissipation fin; 2. connection mechanism; 21. support rod; 22. bolt; 23. plug rod; 24. rubber pad; 3. pump body mechanism; 301. back cover; 302. heat dissipation hole; 31. outer shell; 32. support leg; 33. sealing strip; 34. exhaust port; 35. air inlet; 36. active screw; 37. connecting rod; 38. driven screw. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the embodiments: Example

[0023] like Figure 1-4 As shown, the utility model provides a high-sealing screw vacuum pump, including a heat dissipation mechanism 1, the interior of the heat dissipation mechanism 1 is sleeved with a connecting mechanism 2, the right side of the heat dissipation mechanism 1 is fixedly connected with a pump body mechanism 3, the heat dissipation mechanism 1 includes a support plate 11 and a heat dissipation fin 15, the surface of the support plate 11 is provided with a connecting hole 12, the support plate 11 is rotatably connected with an electric rotating rod 13, the surface of the electric rotating rod 13 is fixedly connected with a fan blade 14, and the heat dissipation fin 15 is located on the right side of the fan blade 14;

[0024] Specifically, the heat dissipation fins 15 are fixed on the back cover 301, and then the heat in the outer shell 31 is discharged. Then, the electric rotating rod 13 is started to drive the fan blades 14 to rotate, thereby blowing wind into the inner part of the outer shell 31 to dissipate heat for the pump body mechanism 3. At the same time, the wind is blown to the surface of the heat dissipation fins 15, thereby improving the heat dissipation strength of the heat dissipation fins 15 themselves, thereby improving the heat dissipation effect of the vacuum pump, reducing the heat inside the vacuum pump, and protecting it. Example

[0025] like Figure 1-4 As shown, on the basis of embodiment 1, the utility model provides a technical solution: preferably, the connecting mechanism 2 includes a support rod 21, the support rod 21 is inserted into the inside of the connecting hole 12, the tail end of the support rod 21 is fixedly connected with a bolt 22, the inside of the bolt 22 is sleeved with an insert rod 23, the tail end of the insert rod 23 is fixedly connected with a rubber pad 24, and the rubber pad 24 is sleeved inside the bolt 22;

[0026] Specifically, the support rod 21 is screwed into the back cover, and the bolt 22 at its tail end is connected to the internal thread of the back cover 301. The insertion rod 23 is inserted into the back cover 301 so that its tail end is located inside the bolt 22. The outside of the insertion rod 23 is a rubber pad 24, thereby increasing the friction between the bolt 22 and the back cover 301, and the heat dissipation mechanism 1 can be fixed. The insertion rod 23 and the rubber pad 24 are pulled out, and then the support rod 21 is rotated to drive the bolt 22 to move out of the back cover, and the heat dissipation mechanism 1 can be removed, thereby achieving the purpose of easy disassembly and assembly. Example

[0027] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the pump body mechanism 3 includes a shell 31, the bottom of the shell 31 is fixedly connected to a support leg 32, the left side of the shell 31 is fixedly connected to a sealing strip 33, the outer side of the sealing strip 33 is sleeved with a rear cover 301, the surface of the rear cover 301 is provided with heat dissipation holes 302, the rear cover 301 is fixedly connected to the heat dissipation fins 15, the rear cover 301 and the shell 31 are both threadedly connected with the bolts 22, the upper and lower parts of the shell 31 are symmetrically provided with an exhaust port 34 and an air inlet 35, the interior of the shell 31 is provided with an active screw rod 36, one end of the active screw rod 36 is fixedly connected to a connecting rod 37, the connecting rod 37 extends to the right side of the shell 31, and a driven screw rod 38 is provided on the surface of the active screw rod 36;

[0028] Specifically, the connection between the outer shell 31 and the back cover 301 of the screw vacuum pump is covered by a sealing strip 33, thereby improving the sealing of the screw vacuum pump. The exhaust port 34 and the air inlet 35 are both provided with control valves, so that the opening and closing of the exhaust port 34 and the air inlet 35 can be controlled by opening and closing the control valves to avoid air leakage at the exhaust port 34 and the air inlet 35 during operation. The driving assembly inside the screw vacuum pump drives the active screw 36 to rotate, and the active screw 36 can drive the driven screw 38 in contact with its surface to rotate. The parts that need to rotate are fixed to the connecting rod 37, so that they can be driven to rotate when the active screw 36 rotates.

[0029] The following is a detailed description of the working principle of the high-seal screw vacuum pump.

[0030] like Figure 1-4As shown, the connection between the housing 31 of the screw vacuum pump and the rear cover 301 is covered by a sealing strip 33, and the exhaust port 34 and the air inlet 35 are both provided with control valves, so that the opening and closing of the exhaust port 34 and the air inlet 35 can be controlled by opening and closing the control valves, thereby improving the sealing performance of the screw vacuum pump. The driving assembly inside the screw vacuum pump drives the active screw 36 to rotate, and the active screw 36 drives the driven screw 38 attached to the surface thereof to rotate, and the parts to be rotated are fixed to the connecting rod 37, so that the active screw 36 can rotate. When it is moving, it drives it to rotate, screw the support rod 21 into the back cover, and the bolt 22 at its tail end is connected with the internal thread of the back cover 301, and insert the insertion rod 23 into the back cover 301 so that its tail end is located inside the bolt 22. The outside of the insertion rod 23 is a rubber pad 24, thereby increasing the friction between the bolt 22 and the back cover 301, so that the heat dissipation mechanism 1 can be fixed, and the heat in the shell 31 of the heat dissipation fin 15 is extracted, and the electric rotating rod 13 is started to drive the fan blades 14 to rotate, thereby blowing wind into the shell 31 to dissipate heat for the pump body mechanism 3.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A high-sealing screw vacuum pump, comprising a heat dissipation mechanism (1), characterized in that: The heat dissipation mechanism (1) has a connecting mechanism (2) sleeved inside, and the right side of the heat dissipation mechanism (1) is fixedly connected to a pump body mechanism (3); The heat dissipation mechanism (1) comprises a support plate (11) and heat dissipation fins (15); a connection hole (12) is provided on the surface of the support plate (11); an electric rotating rod (13) is rotatably connected to the support plate (11); a fan blade (14) is fixedly connected to the surface of the electric rotating rod (13); and the heat dissipation fins (15) are located on the right side of the fan blade (14).

2. A high-seal screw vacuum pump according to claim 1, characterized in that: The connection mechanism (2) comprises a support rod (21), the support rod (21) is inserted into the interior of the connection hole (12), and the rear end of the support rod (21) is fixedly connected with a bolt (22).

3. A high-seal screw vacuum pump according to claim 2, characterized in that: An insert rod (23) is sleeved inside the bolt (22), a rubber pad (24) is fixedly connected to the tail end of the insert rod (23), and the rubber pad (24) is sleeved inside the bolt (22).

4. A high-seal screw vacuum pump according to claim 1, characterized in that: The pump body mechanism (3) comprises a shell (31), the bottom of the shell (31) is fixedly connected to a support leg (32), the left side of the shell (31) is fixedly connected to a sealing strip (33), the outer surface of the sealing strip (33) is sleeved with a rear cover (301), and the surface of the rear cover (301) is provided with heat dissipation holes (302).

5. A high-seal screw vacuum pump according to claim 4, characterized in that: The rear cover (301) is fixedly connected to the heat dissipation fins (15); the rear cover (301) and the outer shell (31) are both threadedly connected to the bolts (22); and the outer shell (31) is symmetrically provided with an exhaust port (34) and an air inlet (35) at the top and bottom.

6. A high-seal screw vacuum pump according to claim 5, characterized in that: An active screw rod (36) is disposed inside the housing (31), and one end of the active screw rod (36) is fixedly connected to a connecting rod (37).

7. A high-seal screw vacuum pump according to claim 6, characterized in that: The connecting rod (37) extends to the right side of the housing (31), and a driven screw rod (38) is provided on the surface of the active screw rod (36).

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