CN218295279U - Lubricating oil filling device and screw vacuum pump - Google Patents
Lubricating oil filling device and screw vacuum pump Download PDFInfo
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- CN218295279U CN218295279U CN202222949934.2U CN202222949934U CN218295279U CN 218295279 U CN218295279 U CN 218295279U CN 202222949934 U CN202222949934 U CN 202222949934U CN 218295279 U CN218295279 U CN 218295279U
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Abstract
A lubricating oil filling device and a screw vacuum pump belong to the technical field of vacuum equipment. Including closing cap (1), seted up filling hole (5) on closing cap (1), its characterized in that: the filling hole (5) of the sealing cover (1) is externally covered with an oil filling tank (2), and the top surface and the bottom surface of the oil filling tank (2) are provided with a pipe thread hole (3) and an oil plugging thread hole. The utility model discloses set up the oil filling box of special filling lubricating oil in addition outside the closing cap, when the inside lubricating oil of assurance that can be better is sufficient, the filling of lubricating oil is also more convenient with the change. When the lubricating oil is replaced, the waste oil in the oil filling box can be discharged from the bottom conveniently.
Description
Technical Field
A lubricating oil filling device and a screw vacuum pump belong to the technical field of vacuum equipment.
Background
The development of various vacuum pumps is increasingly influenced by vacuum application occasions, and a general vacuum system cannot meet the requirements of oil-free cleaning and corrosion resistance, so that the market demand of dry vacuum pumps is large in recent years, vacuum obtaining products have been updated, and a large number of oil-containing vacuum systems are replaced by oil-free cleaning vacuum systems. Almost every large vacuum company abroad produces a variety of different types of dry vacuum pumps. The screw vacuum pump belongs to a non-contact dry pump, is an ideal pump type appearing in the early stage of the 90 s in the 20 th century, and is widely applied to the advantages of wide pumping speed range, simple and compact structure, no friction of pumping cavity elements, long service life, low energy consumption, no oil pollution and the like.
In a screw vacuum pump, lubricating oil is usually filled in a lubricating cavity sealed by end covers at two ends of the screw vacuum pump, and the lubricating oil is filled through filling holes formed in the end covers, and the filling holes are sealed by sealing covers. The filling hole is horizontally arranged, so that the lubricating oil is inconvenient to fill and is easy to leak during filling.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects in the prior art are overcome, and the lubricating oil filling device and the screw vacuum pump which are convenient to fill oil are provided.
The utility model provides a technical scheme that its technical problem adopted is: this lubricating oil filling device, including the closing cap, seted up the filling hole on the closing cap, its characterized in that:
the filling hole outer sealing cover of closing cap is equipped with the oil filling box, has all seted up pipe line silk hole and oil plug silk hole on the top surface and the bottom surface of oil filling box.
The utility model discloses set up the oil filling box of special filling lubricating oil in addition outside the closing cap, when the inside lubricating oil of assurance that can be better is sufficient, the filling of lubricating oil is also more convenient with the change. When the lubricating oil is replaced, the waste oil in the oil filling box can be discharged from the bottom conveniently. The oil plug is arranged at the oil plug screw hole, and sealing can be conveniently realized.
Preferably, in the lubricating oil filling device, a sealing mounting plate is arranged on one surface of the oil filling box, which is in butt joint with the sealing cover, and the sealing mounting plate extends out of the periphery of the oil filling box to form a fixed edge; the oil filling box and the sealing cover are fixedly connected through the sealing mounting plate. The oil filling box is fixedly installed through the fixing edges on the periphery of the sealing installation plate, and the bolts are more convenient to disassemble and assemble during the outside fixed installation and maintenance.
Preferably, the fixing edge is provided with a plurality of countersunk head screw holes, the sealing cover is provided with an oil tank mounting screw hole corresponding to the countersunk head screw holes, and the oil tank and the sealing cover are fixedly connected with the oil tank mounting screw hole through bolt connecting countersunk head screw holes. The oil filling box and the sealing cover are fixedly connected through the countersunk head screw hole, so that the oil filling box is more attractive, the bolt can be effectively prevented from being collided, and the safety is improved.
Preferably, the fixing edge is provided with a plurality of jackscrew holes. The top thread hole is preset on the fixed edge, so that the top thread can be conveniently used for jacking and separating during disassembly, and the operation is convenient.
Preferably, in the lubricating oil filling device, a main oil plugging hole is formed in the position, corresponding to the filling hole, of the oil filling box.
Preferably, the top surface and the bottom surface of the oil filling tank are provided with auxiliary oil plugging holes. When the lubricating oil is replaced, the waste oil in the oil filling box can be conveniently discharged from the bottom auxiliary oil plug hole.
Preferably, in the above lubricating oil filling device, a sealing gasket is arranged on a butt joint surface of the oil filling tank and the sealing cover.
The screw vacuum pump comprises a screw pump main body and a screw pump motor, wherein the sealing cover of the screw pump main body is provided with the lubricating oil filling device. Install this lubricating oil filling device's screw vacuum pump, the joining lubricating oil that can be more convenient to guarantee the lubricating oil capacity, prolonged the change interval time of lubricating oil.
Compared with the prior art, the utility model discloses a lubricating oil filling device and screw vacuum pump beneficial effect who has is: the utility model discloses set up the oil filling box of special filling lubricating oil in addition outside the closing cap, when the inside lubricating oil of assurance that can be better is sufficient, the filling of lubricating oil is also more convenient with the change. When the lubricating oil is replaced, the waste oil in the oil filling box can be discharged from the bottom conveniently. The oil plug is arranged at the oil plug screw hole, and the sealing can be conveniently realized. The screw vacuum pump provided with the lubricating oil filling device can more conveniently add lubricating oil, ensure sufficient lubricating oil and prolong the replacement interval time of the lubricating oil.
Drawings
Fig. 1 is an installation schematic diagram of the lubricating oil filling device of the present invention.
Fig. 2 is a schematic front view of a modified end cover of the lubricating oil filling device of the present invention.
Fig. 3 is a left side view schematic diagram of a modified end cover of the lubricating oil filling device of the present invention.
FIG. 4 is a schematic illustration of an end cap seal of a conventional screw pump.
Fig. 5 is a left side view schematic diagram of the lubricating oil filling device of the present invention.
Fig. 6 is a schematic front view of the lubricating oil filling device of the present invention.
Fig. 7 isbase:Sub>A schematic cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 5.
Fig. 8 is a schematic cross-sectional view at B-B in fig. 6.
Fig. 9 shows a screw vacuum pump according to the present invention.
The oil tank comprises a sealing cover 1, a sealing cover 101, an oil tank installation screw hole 2, an oil tank 3, a pipe thread screw hole 4, a main oil plugging hole 5, a filling hole 6, a sealing cover 7, a sealing installation plate 701, a countersunk head screw hole 702, a top thread hole 8, an auxiliary oil plugging hole 9, a screw pump main body 10, a screw pump motor 11, a butt joint groove a and an oil tank changing area.
Detailed Description
Fig. 1 to 3 and 5 to 9 are preferred embodiments of the present invention, and the present invention will be further described with reference to the accompanying drawings.
In the screw vacuum pump, lubricating oil is filled in a lubricating cavity sealed by end covers at two ends of the screw vacuum pump, and the method is as follows with reference to the attached figure 4: the end cover 1 is provided with a filling hole 5, the filling hole is sealed by a sealing cover 6, and lubricating oil is directly filled at the position. The filling hole 5 is horizontally arranged, so that the lubricating oil is inconvenient to fill and easy to leak during filling.
Referring to figures 1 to 3: the utility model discloses a lubricating oil filling device can directly reequip on the positive empty pump of traditional screw rod, including closing cap 1 and tank filler 2, remain filling hole 5 on the closing cap 1 to tear sealed lid 6 open, the tank filler 2 sealed cowling is established outside the filling hole 5 of closing cap 1, and when the inside lubricating oil of assurance that can be better is sufficient, the filling of lubricating oil is also more convenient with the change. The sealing mounting plate 7 is arranged on one surface of the oil filling box 2, which is in butt joint with the sealing cover 1, the sealing mounting plate 7 extends out of the periphery of the oil filling box 2 to form a fixing edge, and the bolt is more conveniently disassembled and assembled in the outer side fixing mounting mode during maintenance; a plurality of countersunk screw holes 701 are distributed on the fixing edge, an oil tank mounting screw hole 101 is formed in the position, corresponding to the countersunk screw holes 701, on the sealing cover 1, and the oil tank 2 and the sealing cover 1 are fixedly connected with the oil tank mounting screw hole 101 through the countersunk screw holes 701 connected with bolts. The connecting and fixing are realized through the countersunk head screw hole 701, so that the appearance is attractive, and the collision is effectively prevented; a plurality of jackscrew holes 702 are arranged on the fixed edge, so that jackscrews can be conveniently used for jacking and separating during disassembly. The butt joint surface of the oil filling box 2 and the sealing cover 1 is provided with a metal sealing washer, so that the sealing performance is ensured.
Referring to figures 5 to 8: the position of the oil filling box 2 corresponding to the filling hole 5 is provided with a main oil plugging hole 4.
The top surface and the bottom surface of the oil filling box 2 are both provided with a pipe thread hole 3 and an auxiliary oil plugging hole 8, the auxiliary oil plugging hole 8 at the top is filled with lubricating oil, and the auxiliary oil plugging hole 8 at the bottom is convenient for discharging waste oil; the oil plugs are arranged at the oil plug screw holes, and sealing can be conveniently realized. The middle part of the sealing mounting plate 7 is provided with a butt joint groove 11 corresponding to the filling hole 5, so that the filling hole 5 is provided with an oil inlet channel and the butt joint is facilitated.
Referring to fig. 9: the utility model discloses a screw vacuum pump, including screw pump main part 9 and screw pump motor 10, the a department of screw pump main part 9 changes the oil tank region, tears sealed lid 6 backs down on its closing cap 1, and oil tank installation screw 101, this lubricating oil filling device of installation are seted up to the position that corresponds countersunk head screw 701.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a lubricating oil filling device, includes closing cap (1), has seted up filling hole (5) on closing cap (1), its characterized in that:
the filling hole (5) of the sealing cover (1) is externally covered with an oil filling tank (2), and the top surface and the bottom surface of the oil filling tank (2) are provided with a pipe thread hole (3) and an oil plugging thread hole.
2. A lubricating oil filling device according to claim 1, wherein:
a sealing mounting plate (7) is arranged on one surface of the oil filling box (2) which is in butt joint with the sealing cover (1), and the sealing mounting plate (7) extends out of the periphery of the oil filling box (2) to form a fixed edge; the oil filling box (2) and the sealing cover (1) are fixedly connected through a sealing mounting plate (7).
3. A lubricating oil filling device according to claim 2, wherein:
the oil tank is characterized in that a plurality of countersunk head screw holes (701) are formed in the fixing edge, oil tank mounting screw holes (101) are formed in the positions, corresponding to the countersunk head screw holes (701), on the sealing cover (1), and the oil tank (2) and the sealing cover (1) are fixedly connected with the oil tank mounting screw holes (101) through bolt connection countersunk head screw holes (701).
4. A lubricating oil filling device according to claim 2, wherein:
the fixing edge is provided with a plurality of jackscrew holes (702).
5. A lubricating oil filling device according to claim 1, wherein:
the position of the oiling box (2) corresponding to the filling hole (5) is provided with a main oil plug hole (4).
6. A lubricating oil filling device according to claim 1, wherein:
and the top surface and the bottom surface of the oil filling box (2) are provided with auxiliary oil plugging holes (8).
7. A lubricating oil filling device according to claim 1, wherein:
and a sealing gasket is arranged on the butt joint surface of the oil filling box (2) and the sealing cover (1).
8. The utility model provides a screw vacuum pump, includes screw pump main part (9) and screw pump motor (10), its characterized in that: the lubricating oil filling device of any one of claims 1 to 7 is arranged on the sealing cover (1) of the screw pump main body (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222949934.2U CN218295279U (en) | 2022-11-04 | 2022-11-04 | Lubricating oil filling device and screw vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222949934.2U CN218295279U (en) | 2022-11-04 | 2022-11-04 | Lubricating oil filling device and screw vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218295279U true CN218295279U (en) | 2023-01-13 |
Family
ID=84809485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222949934.2U Active CN218295279U (en) | 2022-11-04 | 2022-11-04 | Lubricating oil filling device and screw vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218295279U (en) |
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2022
- 2022-11-04 CN CN202222949934.2U patent/CN218295279U/en active Active
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