CN219993932U - Anti-blocking device of dry vacuum pump - Google Patents
Anti-blocking device of dry vacuum pump Download PDFInfo
- Publication number
- CN219993932U CN219993932U CN202320582566.4U CN202320582566U CN219993932U CN 219993932 U CN219993932 U CN 219993932U CN 202320582566 U CN202320582566 U CN 202320582566U CN 219993932 U CN219993932 U CN 219993932U
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- China
- Prior art keywords
- vacuum pump
- dry vacuum
- dry
- base
- nitrogen
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Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 76
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 37
- 239000007789 gas Substances 0.000 claims abstract description 16
- 230000001502 supplementing effect Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 21
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 2
- 239000013589 supplement Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 10
- 239000000428 dust Substances 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000009833 condensation Methods 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses an anti-blocking device of a dry vacuum pump, which comprises a base and the dry vacuum pump, wherein a driving mechanism for driving a screw rod of the dry vacuum pump when the dry vacuum pump is closed is arranged at the upper part of the base, a gas supplementing component for supplementing nitrogen to a gas inlet of the dry vacuum pump is arranged at one side of the upper surface of the base, a gas outlet of the dry vacuum pump is connected with a three-way joint, one end of the three-way joint is connected with a solenoid valve connected with a gas pipeline, the other end of the three-way joint is connected with an exhaust solenoid valve, and an electric control box is arranged at one side of the base and is electrically connected with the exhaust solenoid valve. According to the utility model, lazy gas nitrogen is injected into the closed cavity of the dry vacuum pump, so that the gas containing dust and other particles is extruded out of the cavity, the phenomenon of blocking caused by condensation of the particles on the screw of the vacuum pump is avoided, and the concentration of reactive gas in the cavity is reduced.
Description
Technical Field
The utility model relates to the technical field of dry vacuum pumps, in particular to an anti-seizing device of a dry vacuum pump.
Background
The dry vacuum pump is a mechanical vacuum pump which can start pumping from the atmospheric pressure and can directly discharge the pumped body into the atmosphere, oil or other working media are not contained in the pump cavity, and the limit pressure of the pump is the same magnitude as or close to that of the oil seal vacuum pump. Because dust and other particles exist in the air pumped by the dry vacuum pump, a large amount of air is blown during the operation of the dry vacuum pump, and the dry vacuum pump has a certain temperature, once the operation of the existing vacuum pump is stopped, the temperature in the pump gradually drops, so that the residual dust and other particles in the pump are condensed on a screw rod of the vacuum pump, the screw rod is prevented from rotating due to overlong stopping time, and finally the screw rod is blocked.
Disclosure of Invention
The utility model aims to provide an anti-blocking device of a dry vacuum pump, which is used for solving the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an anti-sticking device of dry vacuum pump, includes base and dry vacuum pump, the upper portion of base is provided with the actuating mechanism who is used for driving the screw rod of dry vacuum pump when closing the dry vacuum pump, upper surface one side of base is provided with the air supplement subassembly that is used for filling nitrogen gas to the air inlet of dry vacuum pump, the gas outlet of dry vacuum pump is connected with three way connection, three way connection's one end is connected with the solenoid valve of being connected with gas transmission pipeline, and three way connection's the other end is connected with the exhaust solenoid valve, one side of base is provided with the electric control box, electric control box and exhaust solenoid valve electric connection.
Preferably, the driving mechanism comprises a fixed plate, a driving motor, an electromagnetic clutch and a transmission shaft, wherein the fixed plate is arranged on one side of the upper surface of the base, the driving motor is arranged on one side of the fixed plate, the electromagnetic clutch fixedly connected with the fixed plate is arranged on the outer side of the output end of the driving motor, the transmission shaft is inserted into one end, far away from the fixed plate, of the electromagnetic clutch, the other end of the transmission shaft is fixedly connected with a screw rod of the dry vacuum pump, and the driving motor and the electromagnetic clutch are electrically connected with the electric control box.
Preferably, one side of the fixed plate is provided with a mounting frame, a speed sensor for detecting the rotating speed of the transmission shaft is arranged on the mounting frame, and the electric control box controls the electromagnetic clutch according to the detection result of the speed sensor.
Preferably, the air supplementing assembly comprises a high-pressure pump, a nitrogen tank, a nitrogen generator and a pressure switch, wherein the high-pressure pump, the nitrogen tank and the nitrogen generator are respectively arranged on one side of the upper surface of the base, the air inlet end of the high-pressure pump is connected with the air outlet end pipe of the nitrogen tank, the air outlet end of the high-pressure pump is connected with the air inlet pipe of the dry vacuum pump, the air inlet end of the nitrogen tank is connected with the air outlet end pipe of the nitrogen generator, the pressure switch is arranged on one side of the nitrogen tank, and the pressure switch electrically controls the nitrogen generator.
Compared with the prior art, the utility model provides an anti-blocking device of a dry vacuum pump, which has the following beneficial effects: according to the utility model, the screw rod of the closed dry vacuum pump is driven by the driving mechanism, and meanwhile, the nitrogen is filled into the air inlet of the dry vacuum pump through the air supplementing assembly, so that the air containing dust and other particles in the cavity of the dry vacuum pump is extruded out of the cavity, the blocking phenomenon caused by the condensation of the particles on the screw rod of the vacuum pump is avoided, and the concentration of the reaction gas in the cavity is reduced.
Drawings
Fig. 1 is a front view of the present utility model.
In the figure: 1. a base; 2. a dry vacuum pump; 3. a driving mechanism; 30. a fixing plate; 31. a driving motor; 32. an electromagnetic clutch; 33. a transmission shaft; 4. an air supplementing component; 40. a high pressure pump; 41. a nitrogen tank; 42. a nitrogen generator; 43 pressure switch; 5. a three-way joint; 6. an electromagnetic valve; 7. an exhaust electromagnetic valve; 8. an electrical control box; 9. a mounting frame; 10. a speed sensor.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, an embodiment of an anti-seizing device for a dry vacuum pump according to the present utility model is as follows: an anti-seizing device of a dry vacuum pump comprises a base 1 and a dry vacuum pump 2, wherein a driving mechanism 3 for driving a screw of the dry vacuum pump 2 when the dry vacuum pump 2 is closed is arranged at the upper part of the base 1, the driving mechanism 3 comprises a fixed plate 30, a driving motor 31, an electromagnetic clutch 32 and a transmission shaft 33, the fixed plate 30 is arranged on one side of the upper surface of the base 1, the driving motor 31 is arranged on one side of the fixed plate 30, the electromagnetic clutch 32 fixedly connected with the fixed plate 30 is arranged on the outer side of the output end of the driving motor 31, the transmission shaft 33 is inserted at one end of the electromagnetic clutch 32 far away from the fixed plate 30, the other end of the transmission shaft 33 is fixedly connected with the screw of the dry vacuum pump 2, the driving motor 31 and the electromagnetic clutch 32 are electrically connected with an electric control box 8, the electric control box 8 controls the driving motor 31 and the electromagnetic clutch 32 to be electrified after the power supply of the dry vacuum pump 2 is closed, the driving motor 31 drives the transmission shaft 33 to synchronously rotate through the transmission of the electromagnetic clutch 32, so that the transmission shaft 33 drives the screw of the dry vacuum pump 2 to synchronously rotate, meanwhile, one side of the upper surface of the base 1 is respectively provided with a high-pressure pump 40, a nitrogen tank 41 and a nitrogen generator 42, the air inlet end of the high-pressure pump 40 is connected with the air outlet end pipe of the nitrogen tank 41, the air outlet end of the high-pressure pump 40 is connected with the air inlet pipe of the dry vacuum pump 2, the air inlet end of the nitrogen tank 41 is connected with the air outlet end pipe of the nitrogen generator 42, one side of the nitrogen tank 41 is provided with a pressure switch 43, the pressure switch 43 electrically controls the nitrogen generator 42, nitrogen in the nitrogen tank 41 is pumped into the cavity of the dry vacuum pump 2 through the high-pressure pump 40, the air pressure in the nitrogen tank 41 is detected through the pressure switch 43, and when the detected pressure is lower than a set value, the nitrogen generator 42 injects nitrogen into the nitrogen tank 41, the gas outlet of the dry vacuum pump 2 is connected with the three-way joint 5, one end of the three-way joint 5 is connected with the electromagnetic valve 6 connected with the gas pipeline, the other end of the three-way joint 5 is connected with the exhaust electromagnetic valve 7, one side of the base 1 is provided with the electric control box 8, the electric control box 8 is electrically connected with the exhaust electromagnetic valve 7, the electromagnetic valve 6 is controlled to be closed by controlling the electric control box 8, and the exhaust electromagnetic valve 7 is opened simultaneously, so that the gas containing dust and other particles in the dry vacuum pump chamber is extruded out of the chamber, the blocking phenomenon caused by the condensation of the particles on the vacuum pump screw is avoided, and the concentration of reactive gas in the chamber is reduced simultaneously.
In this embodiment, as shown in fig. 1, a mounting frame 9 is disposed on one side of the fixing plate 30, a speed sensor 10 for detecting the rotation speed of the transmission shaft 33 is disposed on the mounting frame 9, and the electric control box 8 controls the electromagnetic clutch 32 according to the detection result of the speed sensor 10, and after the speed sensor 10 detects that the transmission shaft 33 stops rotating, the electromagnetic clutch 32 is energized to perform transmission, so that interference between the screw of the dry vacuum pump 2 and the transmission shaft 33 is avoided.
Working principle: after the power supply of the dry vacuum pump 2 is turned off at the moment, the driving mechanism 3 is used for driving the screw rod of the dry vacuum pump 2 which is turned off, meanwhile, the air supplementing component 4 is used for filling nitrogen into the air inlet of the dry vacuum pump 2, meanwhile, the electric control box 8 is used for controlling the electromagnetic valve 6 to be turned off, and the air exhausting electromagnetic valve 7 is turned on, so that dust and other particles contained in the cavity of the dry vacuum pump 2 are extruded out of the cavity, the blocking phenomenon caused by the condensation of the particles on the screw rod of the vacuum pump is avoided, and meanwhile, the concentration of reactive gas in the cavity is reduced.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, 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 therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Claims (4)
1. The utility model provides a dry vacuum pump's anti-sticking device, includes base (1) and dry vacuum pump (2), its characterized in that: the upper portion of base (1) is provided with actuating mechanism (3) that are used for driving the screw rod of dry-type vacuum pump (2) when closing dry-type vacuum pump (2), upper surface one side of base (1) is provided with air supplement subassembly (4) that are used for filling nitrogen gas to the air inlet of dry-type vacuum pump (2), the gas outlet of dry-type vacuum pump (2) is connected with three way connection (5), the one end of three way connection (5) is connected with solenoid valve (6) that are connected with the gas transmission pipeline, and the other end of three way connection (5) is connected with exhaust solenoid valve (7), one side of base (1) is provided with electric control box (8), electric control box (8) and exhaust solenoid valve (7) electric connection.
2. The anti-seize device of a dry vacuum pump as claimed in claim 1, wherein: the driving mechanism (3) comprises a fixing plate (30), a driving motor (31), an electromagnetic clutch (32) and a transmission shaft (33), wherein the fixing plate (30) is arranged on one side of the upper surface of the base (1), the driving motor (31) is arranged on one side of the fixing plate (30), the electromagnetic clutch (32) fixedly connected with the fixing plate (30) is arranged on the outer side of the output end of the driving motor (31), the transmission shaft (33) is inserted into one end, far away from the fixing plate (30), of the electromagnetic clutch (32), the other end of the transmission shaft (33) is fixedly connected with a screw of the dry vacuum pump (2), and the driving motor (31) and the electromagnetic clutch (32) are electrically connected with the electric control box (8).
3. The anti-seize device of a dry vacuum pump as claimed in claim 2, wherein: one side of fixed plate (30) is provided with mounting bracket (9), be provided with on mounting bracket (9) and be used for detecting speed sensor (10) of transmission shaft (33) rotational speed, and electric control box (8) are according to speed sensor (10) testing result control electromagnetic clutch (32).
4. The anti-seize device of a dry vacuum pump as claimed in claim 1, wherein: the air supplementing assembly (4) comprises a high-pressure pump (40), a nitrogen tank (41), a nitrogen generator (42) and a pressure switch (43), wherein the high-pressure pump (40), the nitrogen tank (41) and the nitrogen generator (42) are respectively arranged on one side of the upper surface of the base (1), the air inlet end of the high-pressure pump (40) is connected with the air outlet end of the nitrogen tank (41), the air outlet end of the high-pressure pump (40) is connected with the air inlet pipe of the dry vacuum pump (2), the air inlet end of the nitrogen tank (41) is connected with the air outlet end pipe of the nitrogen generator (42), the pressure switch (43) is arranged on one side of the nitrogen tank (41), and the pressure switch (43) is used for electrically controlling the nitrogen generator (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320582566.4U CN219993932U (en) | 2023-03-23 | 2023-03-23 | Anti-blocking device of dry vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320582566.4U CN219993932U (en) | 2023-03-23 | 2023-03-23 | Anti-blocking device of dry vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219993932U true CN219993932U (en) | 2023-11-10 |
Family
ID=88613378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320582566.4U Active CN219993932U (en) | 2023-03-23 | 2023-03-23 | Anti-blocking device of dry vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219993932U (en) |
-
2023
- 2023-03-23 CN CN202320582566.4U patent/CN219993932U/en active Active
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| GR01 | Patent grant |