CN219754809U - Current driver of screw vacuum pump full-axial force balancing device - Google Patents
Current driver of screw vacuum pump full-axial force balancing device Download PDFInfo
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- CN219754809U CN219754809U CN202321384904.XU CN202321384904U CN219754809U CN 219754809 U CN219754809 U CN 219754809U CN 202321384904 U CN202321384904 U CN 202321384904U CN 219754809 U CN219754809 U CN 219754809U
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- fixedly connected
- vacuum pump
- shell
- axial force
- current driver
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- 239000000428 dust Substances 0.000 claims description 15
- 230000002265 prevention Effects 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 230000000750 progressive effect Effects 0.000 claims 1
- 230000003321 amplification Effects 0.000 description 8
- 238000003199 nucleic acid amplification method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model belongs to the field of screw vacuum pumps, and particularly relates to a current driver of a full axial force balancing device of a screw vacuum pump, which comprises a vacuum pump body, wherein the vacuum pump body comprises a shell, a balancing mechanism is arranged on the inner wall of the shell and comprises a pulse generating unit, the bottom of the pulse generating unit is fixedly connected with the inner bottom of the shell, the upper surface of the pulse generating unit is fixedly connected with a current switch amplifying unit, the left side of the pulse generating unit is fixedly connected with an operation module, the upper surface of the current switch amplifying unit is fixedly connected with a first magnetic block, the upper surface of the current switch amplifying unit is fixedly connected with a second magnetic block, the second magnetic block is positioned on the right side of the first magnetic block, and the inner part of the shell is fixedly connected with a pressure sensor. The utility model can achieve the purpose of balancing the axial force of the screw in real time by adapting the generated magnetic force and the axial force.
Description
Technical Field
The utility model belongs to the field of screw vacuum pumps, and particularly relates to a current driver of a full axial force balancing device of a screw vacuum pump.
Background
The screw vacuum pump is one kind of dry vacuum pump and its operation principle is to utilize one pair of screw rotors rotating in opposite directions in high speed to exhaust air.
Besides the advantages of a dry vacuum pump, the screw vacuum pump has the unique advantages of compact structure, short gas passage, multiphase mixed transportation and the like, and the screw vacuum pump has axial pressure difference due to the influence of axial exhaust, and a rotor bears huge axial force in the operation process, so that the service life of the pump is influenced.
Disclosure of Invention
The utility model aims to provide a current driver of a full axial force balancing device of a screw vacuum pump, which can achieve the purpose of balancing the axial force of a screw in real time by adapting the generated magnetic force to the axial force; and can be through installing the dustproof pipe additional in the top of air inlet, utilize the filter screen in the dustproof pipe to leave the dust of macroparticle.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a screw vacuum pump full axial force balancing unit's electric current driver, including the vacuum pump body, the vacuum pump body includes the shell, the balancing mechanism is installed to the inner wall of shell, balancing mechanism includes pulse generating unit, pulse generating unit's bottom and the interior bottom fixed connection of shell, pulse generating unit's upper surface fixedly connected with current switch amplification unit, pulse generating unit's left side fixedly connected with operation module, current switch amplification unit's upper surface fixedly connected with first magnetic path, current switch amplification unit's upper surface fixedly connected with second magnetic path, and the second magnetic path is located the right side of first magnetic path, the inside fixedly connected with pressure sensor of shell.
Optionally, the compression mechanism is installed at the interior top of shell, and compression mechanism includes the motor, the bottom of motor and the interior top fixed connection of shell, the output fixedly connected with first pivot of motor, the inside fixedly connected with first bearing of first magnetic path, the bottom of first pivot passes first magnetic path and first bearing swing joint, the fixed surface of first pivot is connected with first helical blade.
Optionally, a second bearing is fixedly connected inside the second magnetic block, a second rotating shaft is movably connected inside the second bearing, and a second helical blade is fixedly connected on the surface of the second rotating shaft.
Optionally, the surface of the first rotating shaft is fixedly connected with a first gear, the surface of the second rotating shaft is fixedly connected with a second gear, and the second gear is meshed with the first gear.
Optionally, cooling grooves are formed in the shell, and the number of the cooling grooves is two.
Optionally, an air inlet and an air outlet are formed in the surface of the shell, and the air inlet is located below the air outlet.
Optionally, the surface mounting of shell has dust prevention mechanism, and dust prevention mechanism includes the dustproof pipe, and the connecting hole has been seted up on the surface of dustproof pipe, and the inside fixedly connected with filter screen of connecting hole.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model is provided with a pressure sensor, a pulse generating unit and a current switch amplifying unit, when in use, the pressure sensor measures the inlet pressure of the screw vacuum pump and is used as the basis of the axial force borne by the screw, the pressure is converted into corresponding electric signals, the corresponding electric signals are input into an operation module to calculate corresponding voltage values corresponding to corresponding currents, the voltage values control the pulse generating unit, the duty ratio of pulse rectangular waves is adjusted, the pulse signals are further input into the current switch amplifying unit, the magnitude of output current is adjusted, the generated magnetic force is adapted to the axial force, and compared with the conventional screw vacuum pump, the axial pressure difference exists due to the influence of axial exhaust, the rotor bears huge axial force in the operation process, and the service life of the pump is influenced. The utility model can achieve the purpose of balancing the axial force of the screw in real time by adapting the generated magnetic force and the axial force.
2. The utility model is provided with a dustproof pipe, a shell, an air inlet and a filter screen, when in use, the dustproof pipe is arranged above the air inlet corresponding to the surface of the shell, the surface of the dustproof pipe is provided with a connecting hole, the filter screen is inserted into the connecting hole, and large-particle dust is left through the filter screen in the dustproof pipe.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first view overall structure according to an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present utility model;
fig. 3 is a schematic view of the internal structure of the present utility model.
In the figure: 1. a vacuum pump body; 101. a housing; 102. a cooling tank; 103. an air outlet; 104. an air inlet; 2. a compression mechanism; 201. a motor; 202. a first rotating shaft; 203. a first helical blade; 204. a second rotating shaft; 205. a second helical blade; 206. a first gear; 207. a second gear; 3. a balancing mechanism; 301. a pulse generation unit; 302. a current switching amplifying unit; 303. a first magnetic block; 304. a second magnetic block; 305. an operation module; 306. a pressure sensor; 4. a dust prevention mechanism; 401. a dust-proof tube; 402. and (5) a filter screen.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 3, a current driver of a full axial force balancing device of a screw vacuum pump according to an embodiment of the present utility model will now be described. The utility model provides a screw vacuum pump full axial force balancing unit's current driver, vacuum pump body 1 includes shell 101, the balancing mechanism 3 is installed to the inner wall of shell 101, balancing mechanism 3 includes pulse generation unit 301, voltage value control pulse generation unit 301, pulse generation unit 301's bottom and the interior bottom fixed connection of shell 101, pulse generation unit 301's upper surface fixedly connected with current switch amplification unit 302, current switch amplification unit 302 adjusts the size of output current, make the magnetic force that produces and axial force adapt to, reach the purpose of real-time balanced screw axial force, the left side fixedly connected with operation module 305 of pulse generation unit 301, operation module 305 calculates the voltage value that the corresponding electric current corresponds, current switch amplification unit 302's upper surface fixedly connected with first magnetic path 303, current switch amplification unit 302's upper surface fixedly connected with second magnetic path 304, and second magnetic path 304 is located the right side of first magnetic path 303, shell 101's inside fixedly connected with pressure sensor 306, the inlet pressure of screw vacuum pump is measured to pressure as the basis of screw bearing axial force size.
The compression mechanism 2 is installed at the interior top of shell 101, compression mechanism 2 includes motor 201, the bottom of motor 201 and the interior top fixed connection of shell 101, the output fixedly connected with first pivot 202 of motor 201, motor 201 drives first pivot 202 rotation, the inside fixedly connected with first bearing of first magnetic path 303, the bottom of first pivot 202 passes first magnetic path 303 and first bearing swing joint, the surface fixedly connected with first helical blade 203 of first pivot 202, first helical blade 203 is right-handed, the inside fixedly connected with second bearing of second magnetic path 304, the inside swing joint of second bearing has second pivot 204, the surface fixedly connected with second helical blade 205 of second pivot 204, second helical blade 205 is left-handed, utilize helical blade's rotation to transport the gas of air inlet 104 to gas outlet 103.
The surface of the first rotating shaft 202 is fixedly connected with a first gear 206, the surface of the second rotating shaft 204 is fixedly connected with a second gear 207, the second gear 207 is meshed with the first gear 206, the second gear 207 is driven to rotate by the rotation of the first gear 206, cooling grooves 102 are formed in the shell 101, the number of the cooling grooves 102 is two, cooling liquid is added into the cooling grooves 102, heat generated in the operation process of the utility model can be cooled, an air inlet 104 and an air outlet 103 are formed in the surface of the shell 101, the air inlet 104 is located below the air outlet 103, a dust prevention mechanism 4 is arranged on the surface of the shell 101, the dust prevention mechanism 4 comprises a dust prevention pipe 401, a connecting hole is formed in the surface of the dust prevention pipe 401, a filter screen 402 is fixedly connected to the inside of the connecting hole, large particle dust is isolated by the filter screen 402, and the dust is prevented from blocking the operation of the utility model after entering.
Working principle: the pressure sensor 306 measures the inlet pressure of the screw vacuum pump as the basis of the axial force born by the screw, converts the pressure into a corresponding electric signal, inputs the corresponding electric signal into the operation module 305 to calculate a voltage value corresponding to the corresponding current, controls the pulse generation unit 301, adjusts the duty ratio of the pulse rectangular wave, inputs the pulse signal into the current switch amplification unit 302, and adjusts the output current so that the generated magnetic force is suitable for the axial force, and the purpose of balancing the axial force of the screw in real time is achieved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. The utility model provides a screw vacuum pump full axial force balancing unit's electric current driver, includes vacuum pump body (1), its characterized in that: the vacuum pump body (1) comprises a shell (101), a balance mechanism (3) is installed on the inner wall of the shell (101), the balance mechanism (3) comprises a pulse generation unit (301), the bottom of the pulse generation unit (301) is fixedly connected with the inner bottom of the shell (101), the upper surface of the pulse generation unit (301) is fixedly connected with a current switch amplifying unit (302), the left side of the pulse generation unit (301) is fixedly connected with an operation module (305), the upper surface of the current switch amplifying unit (302) is fixedly connected with a first magnetic block (303), the upper surface of the current switch amplifying unit (302) is fixedly connected with a second magnetic block (304), and the second magnetic block (304) is positioned on the right side of the first magnetic block (303), and the inner part of the shell (101) is fixedly connected with a pressure sensor (306).
2. The current driver of the screw vacuum pump full axial force balancing device of claim 1, wherein: the compression mechanism is characterized in that the compression mechanism (2) is mounted on the inner top of the shell (101), the compression mechanism (2) comprises a motor (201), the bottom of the motor (201) is fixedly connected with the inner top of the shell (101), the output end of the motor (201) is fixedly connected with a first rotating shaft (202), the inner part of the first magnetic block (303) is fixedly connected with a first bearing, the bottom of the first rotating shaft (202) penetrates through the first magnetic block (303) and is movably connected with the first bearing, and the surface of the first rotating shaft (202) is fixedly connected with a first spiral blade (203).
3. The current driver of the screw vacuum pump full axial force balancing device of claim 2, wherein: the inside fixedly connected with second bearing of second magnetic path (304), the inside swing joint of second bearing has second pivot (204), the surface fixedly connected with second helical blade (205) of second pivot (204).
4. A current driver for a full axial force balancing device of a progressive cavity vacuum pump as claimed in claim 3, wherein: the surface of the first rotating shaft (202) is fixedly connected with a first gear (206), the surface of the second rotating shaft (204) is fixedly connected with a second gear (207), and the second gear (207) is meshed with the first gear (206).
5. The current driver of the screw vacuum pump full axial force balancing device of claim 1, wherein: the cooling grooves (102) are formed in the shell (101), and the number of the cooling grooves (102) is two.
6. The current driver of the screw vacuum pump full axial force balancing device of claim 1, wherein: an air inlet (104) and an air outlet (103) are formed in the surface of the shell (101), and the air inlet (104) is located below the air outlet (103).
7. The current driver of the screw vacuum pump full axial force balancing device of claim 1, wherein: the dust prevention mechanism (4) is arranged on the surface of the shell (101), the dust prevention mechanism (4) comprises a dust prevention pipe (401), a connecting hole is formed in the surface of the dust prevention pipe (401), and a filter screen (402) is fixedly connected to the inside of the connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321384904.XU CN219754809U (en) | 2023-05-31 | 2023-05-31 | Current driver of screw vacuum pump full-axial force balancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321384904.XU CN219754809U (en) | 2023-05-31 | 2023-05-31 | Current driver of screw vacuum pump full-axial force balancing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219754809U true CN219754809U (en) | 2023-09-26 |
Family
ID=88092267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321384904.XU Active CN219754809U (en) | 2023-05-31 | 2023-05-31 | Current driver of screw vacuum pump full-axial force balancing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219754809U (en) |
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2023
- 2023-05-31 CN CN202321384904.XU patent/CN219754809U/en active Active
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