CN210033832U - Improved rotary-vane vacuum pump - Google Patents
Improved rotary-vane vacuum pump Download PDFInfo
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- CN210033832U CN210033832U CN201822032836.6U CN201822032836U CN210033832U CN 210033832 U CN210033832 U CN 210033832U CN 201822032836 U CN201822032836 U CN 201822032836U CN 210033832 U CN210033832 U CN 210033832U
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- filter
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- air outlet
- vacuum pump
- frequency conversion
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Abstract
The utility model discloses a modified rotary-vane vacuum pump, include: the pump body and the frequency conversion device; the pump body comprises an air inlet pipe, an air outlet pipe and a driving motor for driving the rotor to rotate; the frequency conversion device comprises a frequency converter and a controller; a filtering component is arranged above the air inlet of the air inlet pipe; a filter valve is arranged in the pipe of the air outlet pipe; the air outlet of the air outlet pipe is communicated with the air blowing port of the frequency conversion device through a radiating pipe; the frequency converter is electrically connected with the driving motor and the controller. The utility model discloses a filter assembly and filter valve ensure rotary vane type vacuum valve steady operation to through frequency conversion equipment control driving motor operating frequency, realize the regulation of rotary vane type vacuum pump evacuation degree.
Description
Technical Field
The utility model belongs to rotary-vane vacuum pump field, concretely relates to modified rotary-vane vacuum pump.
Background
The oil-sealed direct-coupled rotary vane vacuum pump is a gas transport pump, and is a vacuum pump capable of continuously sucking and discharging gas out of the pump to achieve the purpose of pumping, and is lubricated by adopting working fluid, fills a pump cavity dead space and separates an exhaust valve from atmosphere; an oil-sealed vacuum pump is a pump in which an exhaust valve is immersed in oil to seal an exhaust port of a pump core with the oil. The rotary-vane vacuum pump is a most widely used vacuum pump body in the existing vacuum pump, and has the advantages of simple structure, low requirement on manufacturing precision, compact structure and the like. However, the conventional rotary-vane vacuum pump does not process gas when the cavity is subjected to gas inlet and vacuum pumping, so that the entering air can carry water vapor and impurities into a rotor cavity of a pump body, and the rotary vane in the rotor cavity and the inner wall of the cavity are abraded. Because the rotary-vane vacuum pump is an oil seal type pump, oil is easy to spray in the exhaust process of the pump body to cause pollution, and the degree of vacuumizing of the rotary-vane vacuum pump cannot be freely adjusted when the rotary-vane vacuum pump works, so that the requirements for obtaining different vacuum degrees cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model provides a modified rotary-vane vacuum pump ensures rotary-vane vacuum valve steady operation through filtering component and filter valve to through frequency conversion equipment control driving motor operating frequency, realize the regulation of rotary-vane vacuum pump evacuation degree.
For solving the above technical problem, the embodiment of the utility model provides a modified rotary-vane vacuum pump, include: the pump body and the frequency conversion device; the pump body comprises an air inlet pipe, an air outlet pipe and a driving motor for driving the rotor to rotate; the frequency conversion device comprises a frequency converter and a controller; a filtering component is arranged above the air inlet of the air inlet pipe; a filter valve is arranged in the pipe of the air outlet pipe; the air outlet of the air outlet pipe is communicated with the air blowing port of the frequency conversion device through a radiating pipe; the frequency converter is electrically connected with the driving motor and the controller; the interior of the filter valve comprises: the device comprises a rubber top cover, a clamp spring, a shaft core and a filter screen; the upper end of the shaft core penetrates through the clamp spring and is connected with the rubber top cover, and the rubber top cover movably covers the upper opening of the filter valve; the clamp spring is fixed on the shaft core and positioned below the rubber top cover; the fixed end of the clamp spring is fixed on the inner wall of the filter valve; the filter screen is connected with the bottom end of the shaft core and covers the lower opening of the filter valve.
Further, the filter assembly includes: a first filter and a second filter; the first filter screen is a convex coarse filter screen, and the second filter screen is a fine filter screen which is recessed downwards and enters the air inlet pipe.
Furthermore, a plurality of heat dissipation holes are formed in the frequency conversion device.
Further, the filter screen includes the stainless steel filter screen and locates the axle center periphery and with the screen cloth that the stainless steel filter screen is connected.
The embodiment of the utility model provides an improved rotary-vane vacuum pump, which comprises a pump body, a frequency converter and a controller, wherein the pump body comprises an air inlet pipe, an air outlet pipe and a driving motor for driving a rotor to rotate; the air inlet top of intake pipe is equipped with filtering component to prevent that impurity from getting into pump chamber is inside to lead to the spinning disk card to die, avoids wearing and tearing. A filter valve is arranged in the air outlet pipe, and the rubber top cover is movably covered on the upper opening of the filter valve inside the filter valve, so that the exhaust of the exhaust pipe is facilitated, and splashing of pump oil and noise leakage are prevented; the filter screen connected with the bottom end of the shaft core filters oil smoke discharged from the air outlet and separates pump oil. And the air outlet of the air outlet pipe is communicated with the air blowing port of the frequency conversion device through a radiating pipe, and the air discharged by the air outlet pipe is guided into the frequency conversion device through the radiating pipe, so that a radiating air source is provided for the frequency conversion device, and high-efficiency heat radiation is realized through a simple structure. The frequency converter with driving motor electricity is connected, the frequency converter still with the controller is connected, makes the controller can be through control the frequency converter carries out frequency conversion constant voltage control to the rotary-vane vacuum pump to realize the regulation of rotary-vane vacuum pump evacuation degree.
Drawings
FIG. 1 is a schematic structural view of an embodiment of an improved rotary-vane vacuum pump provided by the present invention;
fig. 2 is a schematic structural diagram of a filter valve of an embodiment of an improved rotary-vane vacuum pump provided in the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a schematic structural diagram of an embodiment of an improved rotary-vane vacuum pump, which includes: the pump body 10 and the frequency conversion device 20; the pump body 10 comprises an air inlet pipe 11, an air outlet pipe 12 and a driving motor 13 for driving the rotor to rotate; the frequency conversion device 20 comprises a frequency converter 21 and a controller 22; a filtering component 30 is arranged above an air inlet of the air inlet pipe 11; a filter valve 40 is arranged in the air outlet pipe 12; the air outlet of the air outlet pipe 12 is communicated with the air blowing port of the frequency conversion device 20 through a radiating pipe 50; the frequency converter 21 is electrically connected with the driving motor 13, and the frequency converter 21 is also electrically connected with the controller 22; the inside of the filtering valve 40 includes: a rubber top cover 41, a clamp spring 42, a shaft core 43 and a filter screen 44; the upper end of the shaft core 43 penetrates through the clamp spring 42 and is connected with the rubber top cover 41, and the rubber top cover 41 movably covers the upper opening of the filter valve 40; the clamp spring 42 is fixed on the shaft core 43 and is positioned below the rubber top cover 41; the fixed end of the clamp spring 42 is fixed on the inner wall of the filter valve 40; the filter screen 44 is connected to the bottom end of the shaft core 43 and covers the lower opening of the filter valve 40.
It should be noted that, the pump body 10 includes an air inlet pipe 11, an air outlet pipe 12 and a driving motor 13 for driving the rotor to rotate; the air inlet top of intake pipe 11 is equipped with filtering component 30, through filtering component 30 will inhale impurity interception that gas in the intake pipe 11 smugglied secretly to prevent that impurity from getting into pump body 10 inside and leading to the spinning disk card to die, avoid wearing and tearing. In detail, a filtering valve 40 is disposed in the outlet pipe 12, and includes: a rubber top cover 41, a clamp spring 42, a shaft core 43 and a filter screen 44; the rubber top cover 41 is arranged at the upper end of the shaft core 43 and movably covers the upper opening of the filter valve 40; the clamp spring 42 is fixed on the shaft core 43 and is positioned below the rubber top cover 41; the end part of the clamp spring 42 is fixed on the inner wall of the filter valve 40; the bottom end of the shaft core 43 is connected with the filter screen 44. When the gas in the cavity of the pump body 10 is discharged into the gas outlet pipe 12, the rubber top cover 41 movably covering the upper opening of the filter valve 40 is pushed open to exhaust the gas under the action of the gas flow, and the pump oil and the leaked noise generated by the splashing of the gas are intercepted by the rubber top cover 41; the rubber top cover 41 is made of oil-resistant and high-temperature-resistant rubber materials. When the air outlet pipe 12 is not exhausted, the snap spring 42 fixed on the shaft core 43 drives the shaft core 43 to return to the original position under the elastic action force, so that the rubber top cover 41 covers the upper opening of the filter valve 40 again. The bottom of axle core 43 is connected filter screen 44 carries out coarse filtration to the combustion gas, filters the oil smoke and the separation pump oil of gas port exhaust, realizes control pump body blast pipe oil spout avoids polluting.
And because the operating temperature of the rotary vane vacuum pump is relatively high, the temperature in the frequency conversion device 20 which is arranged in the same box body with the pump body 10 is relatively high, the air outlet of the air outlet pipe 12 is communicated with the air blowing port of the frequency conversion device 20 through the heat dissipation pipe 50, and the air discharged from the air outlet pipe 12 is guided into the frequency conversion device 20 through the heat dissipation pipe 50 by a proper amount of wind power, so that a heat dissipation wind source is provided for the frequency conversion device 20, and high-efficiency heat dissipation is realized through a simple structure. Since the frequency converter 21 is electrically connected to the driving motor 13 for driving the rotor to rotate, the frequency converter 21 is also connected to the controller 22. The frequency converter 21 is used for controlling the driving motor 13 in a frequency-conversion constant-voltage mode; the controller 22 includes but is not limited to a single chip microcomputer or a microprocessor. Through in advance in controller 22 input or set up corresponding converter 21 control command, realize controller 22 can be through automatic control converter 21 carries out frequency conversion constant voltage control driving motor 13, makes receive driving motor 13 control the rotor speed of the pump body 10 changes to realize the regulation of rotary-vane vacuum pump evacuation degree.
Further, the filter assembly 30 includes: first filter 31 and second filter 32; the first filter 31 is a convex coarse filter, and the second filter 32 is a fine filter which is recessed downward and enters the air inlet pipe 11. In detail, first filter screen 31 is the bellied coarse filter screen and intercepts large-size impurity outside intake pipe 11, second filter screen 32 is the undercut entering the fine filter screen of intake pipe intercepts dust.
Furthermore, a plurality of heat dissipation holes 23 are formed in the frequency conversion device 20.
Further, the filter screen 44 includes a stainless steel filter screen 441 and a screen 442 disposed on the outer circumference of the shaft core 43 and connected to the stainless steel filter screen 441.
To sum up, the embodiment of the present invention provides an improved rotary-vane vacuum pump, which comprises a pump body, a frequency converter and a controller, wherein the pump body comprises an air inlet pipe, an air outlet pipe and a driving motor for driving a rotor to rotate; the air inlet top of intake pipe is equipped with filtering component to prevent that impurity from getting into pump chamber is inside to lead to the spinning disk card to die, avoids wearing and tearing. A filter valve is arranged in the air outlet pipe, and the rubber top cover is movably covered on the upper opening of the filter valve inside the filter valve, so that the exhaust of the exhaust pipe is facilitated, and splashing of pump oil and noise leakage are prevented; the filter screen connected with the bottom end of the shaft core filters oil smoke discharged from the air outlet and separates pump oil. And the air outlet of the air outlet pipe is communicated with the air blowing port of the frequency conversion device through a radiating pipe, and the air discharged by the air outlet pipe is guided into the frequency conversion device through the radiating pipe, so that a radiating air source is provided for the frequency conversion device, and high-efficiency heat radiation is realized through a simple structure. The frequency converter with driving motor electricity is connected, the frequency converter still with the controller is connected, makes the controller can be through control the frequency converter carries out frequency conversion constant voltage control to the rotary-vane vacuum pump to realize the regulation of rotary-vane vacuum pump evacuation degree.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (4)
1. An improved rotary vane vacuum pump, comprising: the pump body and the frequency conversion device; the pump body comprises an air inlet pipe, an air outlet pipe and a driving motor for driving the rotor to rotate; the frequency conversion device comprises a frequency converter and a controller; a filtering component is arranged above the air inlet of the air inlet pipe; a filter valve is arranged in the pipe of the air outlet pipe; the air outlet of the air outlet pipe is communicated with the air blowing port of the frequency conversion device through a radiating pipe; the frequency converter is electrically connected with the driving motor and the controller; the interior of the filter valve comprises: the device comprises a rubber top cover, a clamp spring, a shaft core and a filter screen; the upper end of the shaft core penetrates through the clamp spring and is connected with the rubber top cover, and the rubber top cover movably covers the upper opening of the filter valve; the clamp spring is fixed on the shaft core and positioned below the rubber top cover; the fixed end of the clamp spring is fixed on the inner wall of the filter valve; the filter screen is connected with the bottom end of the shaft core.
2. An improved rotary vane vacuum pump as set forth in claim 1 wherein said filter assembly comprises: a first filter and a second filter; the first filter screen is a convex coarse filter screen, and the second filter screen is a fine filter screen which is recessed downwards and enters the air inlet pipe.
3. The improved rotary vane vacuum pump of claim 1 wherein the frequency conversion device is provided with a plurality of heat dissipation ports.
4. An improved rotary vane vacuum pump as claimed in claim 1 wherein said screen comprises a stainless steel screen and a screen disposed about the periphery of said axial core and connected to said stainless steel screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822032836.6U CN210033832U (en) | 2018-12-05 | 2018-12-05 | Improved rotary-vane vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822032836.6U CN210033832U (en) | 2018-12-05 | 2018-12-05 | Improved rotary-vane vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210033832U true CN210033832U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822032836.6U Active CN210033832U (en) | 2018-12-05 | 2018-12-05 | Improved rotary-vane vacuum pump |
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| Country | Link |
|---|---|
| CN (1) | CN210033832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107849A (en) * | 2021-05-24 | 2021-07-13 | 玉环德谷新材料科技有限公司 | Rotary vane vacuum pump |
-
2018
- 2018-12-05 CN CN201822032836.6U patent/CN210033832U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107849A (en) * | 2021-05-24 | 2021-07-13 | 玉环德谷新材料科技有限公司 | Rotary vane vacuum pump |
| CN113107849B (en) * | 2021-05-24 | 2022-07-01 | 广东思贝乐能源装备科技有限公司 | Rotary vane vacuum pump |
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