CN215409215U - Oil core of screw vacuum pump - Google Patents

Abstract

The utility model relates to an oil core of a screw vacuum pump, which comprises an outer barrel with an air inlet and an oil outlet pipe and an open top, and an inner barrel arranged in the outer barrel and an open top, wherein a plurality of oil-gas separation core columns are arranged in the inner barrel, in daily use, oil mist enters the inner cavity of the outer barrel through the air inlet and then enters the oil-gas separation core columns arranged in the inner barrel, oil in the oil mist is blocked in the inner cavity of the outer barrel by the oil-gas separation core columns and is finally discharged out of the inner cavity of the outer barrel through the oil outlet pipe, different matching combinations are carried out on the oil-gas separation core column according to different machine gas handling capacity, the modular design of the oil core is optimized, the assembly efficiency of the oil core is greatly improved, meanwhile, the types of the oil cores are reduced, large-scale production of single variety can be performed, the cost of the oil cores is further reduced, the production efficiency is improved, and the cost performance of the unit is improved.

Description

Oil core of screw vacuum pump

Technical Field

The utility model relates to the technical field of oil cores, in particular to an oil core of a screw vacuum pump.

Background

The oil core is an oil-gas separation device arranged inside an oil barrel lining barrel, and the traditional oil core is generally manufactured into a single assembly. The oil core is selected and designed according to the size of the air handling capacity of the vacuum pump, the oil cores with different specifications are required to be designed according to different air capacities, and the types and the sizes of the oil cores are large due to the fact that the specifications of the vacuum pump units are large, so that the standardized production of products is not facilitated, the cost of product design and production processing is increased, and therefore improvement is needed.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide an oil core of a screw vacuum pump, which is convenient for standardized production.

The technical scheme of the utility model is realized as follows: the utility model provides a screw vacuum pump oil content core, is including having air inlet and the open urceolus in oil pipe and top, installing in the urceolus and the open inner tube in top, the uncovered department in inner tube top installs the cover, the intercommunication has outlet duct, its characterized in that on the cover: and a plurality of oil-gas separation core columns are arranged in the inner cylinder.

Through adopting above-mentioned technical scheme, in daily use, the oil mist passes through the air inlet and gets into in the urceolus inner chamber, then get into and install in a plurality of oil-gas separation stem stems in the inner tube, oil in the oil mist is by the separation of oil-gas separation stem in the urceolus inner chamber, clean air is discharged through the outlet duct of installing at the cover top, the oil by the separation of oil-gas separation stem in the urceolus inner chamber collects in urceolus inner chamber bottom, finally through the urceolus inner chamber of play oil pipe discharge, the machine according to the difference is handled the tolerance and is carried out different matching combination to the oil-gas separation stem, optimize the modular design of oil content core, the assembly efficiency of oil content core has been improved greatly, the kind of oil content core has also been reduced simultaneously, large-scale single variety's production can be carried out, the cost of oil content core has further been reduced, production efficiency is improved, thereby the cost performance of the unit has been improved.

The utility model is further configured to: run through from top to bottom and its inner chamber middle part is equipped with the mounting panel on the inner tube, be equipped with the screw hole on the mounting panel, oil-gas separation stem bottom is equipped with the installation department that has the external screw thread on the outer wall, installation department and screw hole threaded connection.

Through adopting above-mentioned technical scheme, in daily use, the threaded connection demountable installation at the mounting panel top of the installation department that has the external screw thread on the oil-gas separation stem on through the outer wall and screw hole, until oil-gas separation stem bottom terminal surface and mounting panel top surface butt, through screw-thread fit's mode, make things convenient for the installation and the dismantlement of oil-gas separation stem to change.

The utility model is further configured to: and a hexagonal nut is installed at the top of the oil-gas separation core column.

Through adopting above-mentioned technical scheme, in daily use, through hexagon socket head cap nut's setting, when the workman need dismantle the oil-gas separation stem or install, with the cooperation with hexagon nut adapter's hexagon socket head cap spanner and hexagon nut, it is rotatory to drive hexagon nut, with the installation department from the screw hole screw out or with installation department screw in screw hole, makes things convenient for the workman to install or dismantle hexagon nut.

The utility model is further configured to: the oil-gas separation core column is characterized in that a first annular groove is formed in the end face of the bottom of the oil-gas separation core column, and a first sealing ring is installed in the first annular groove.

Through adopting above-mentioned technical scheme, in daily use, set up the first sealing washer on oil-gas separation stem bottom terminal surface through first ring channel and can make and have good leakproofness between oil-gas separation stem bottom terminal surface and the mounting panel top surface, avoid the oil mist to directly reveal to the inner tube inner chamber from the gap between the external screw thread of installation department outer wall and the screw hole, lead to the oil mist not filter just from the uncovered exhaust phenomenon in inner tube top emergence of oil-gas separation stem.

The utility model is further configured to: the inner tube top is equipped with the card edge, the urceolus top is equipped with the top surface and blocks the fender edge along the top surface butt.

Through adopting above-mentioned technical scheme, in daily use, along the bottom surface with keep off along the mutual butt of top surface through the card, with inner tube fixed mounting in urceolus top opening department, prevent that the inner tube from falling into in the urceolus inner chamber.

The utility model is further configured to: the top and the bottom of card edge all are equipped with the second annular, install the second sealing washer in the second annular.

Through adopting above-mentioned technical scheme, in daily use, through the setting of second annular and second sealing washer, improve the card along the bottom surface with keep off between the top surface along the top surface and the cover leakproofness between the top surface along with the card, avoid the oil mist to reveal outside the urceolus or the phenomenon of revealing from the card along the gap between top surface and the cover through the gas after filtering from the card along bottom surface and keeping off between the top surface.

The utility model is further configured to: the top of the blocking edge is provided with a clamping block, and the inner side wall of the blocking edge is abutted to the outer side wall of the clamping edge.

Through adopting above-mentioned technical scheme, in daily use, through the setting of fixture block, restrict the mutual position between card edge and the fender edge, prevent that the inner tube from taking place to rock in the urceolus inner chamber.

The utility model is further configured to: the oil-gas separation device is characterized in that a clamping ring surrounding the outer side of the oil-gas separation core column is arranged on the top surface of the mounting plate, and a third sealing ring is arranged between the inner side wall of the clamping ring and the outer side wall of the oil-gas separation core column.

Through adopting above-mentioned technical scheme, in daily use, through the setting of third sealing washer, make the leakproofness between oil-gas separation stem and the mounting panel obtain further promotion, prevent that the oil mist from directly revealing to the inner tube inner chamber from the gap between the external screw thread of installation department outer wall and the screw hole.

The utility model is further configured to: the third sealing washer includes inner ring, outer loop and is used for connecting the go-between of inner ring and outer loop, the inside wall and the oil-gas separation stem lateral wall butt of inner ring, the lateral wall and the snap ring inside wall butt of outer loop.

Through adopting above-mentioned technical scheme, in daily use, the go-between that sets up between inner ring and outer loop takes place to warp under the influence of the vibrations that the cover operation produced, absorb vibrations, make the lateral wall of inner ring inside wall and outer loop respectively can with the lateral wall of oil-gas separation stem and the contact between the snap ring inside wall keep inseparable, avoid appearing the gap between influence that outer ring or outer loop received the vibrations to strike and oil-gas separation stem lateral wall or the snap ring inside wall, the phenomenon that leads to the unable good sealed effect that plays of third sealing washer takes place.

The utility model is further configured to: the inner ring is internally provided with an air bag, a main seal edge and auxiliary seal edges which are respectively arranged at the upper side and the lower side of the main seal edge are arranged on the inner side wall of the clamping ring, and the top of the main seal edge and the top of the auxiliary seal edges are abutted against the outer side wall of the oil-gas separation core column.

Through adopting above-mentioned technical scheme, in daily use, through the setting of gasbag, the shock resistance of inner ring has been improved, prevent that the inner ring from damaging because of receiving the influence that the vibrations were strikeed, through the setting on main sealed edge and two vice sealed edges, the leakproofness between inner ring inside wall and the oil-gas separation stem lateral wall has been improved, even if two vice sealed edges receive the influence that the vibrations were strikeed and damage, the main sealed edge still can make the leakproofness between inner ring inside wall and the oil-gas separation stem lateral wall, the main sealed edge receives the influence that the vibrations were strikeed and damages, two vice sealed edges still can make the leakproofness between inner ring inside wall and the oil-gas separation stem lateral wall.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a cross section in a front view direction according to an embodiment of the present invention.

FIG. 2 is a schematic view of a part A of the enlarged structure of FIG. 1

Fig. 3 is a schematic view of a part of the enlarged structure at B in fig. 1.

Fig. 4 is a schematic top view of the present invention.

The labels in the figures are:

1-air inlet, 2-oil outlet pipe, 3-outer cylinder, 4-inner cylinder, 5-oil-gas separation core column, 6-mounting plate, 7-mounting part, 8-hexagonal nut, 9-first sealing ring, 10-clamping edge, 11-blocking edge, 12-second sealing ring, 13-clamping block, 14-clamping ring, 15-third sealing ring, 151-inner ring, 152-outer ring, 153-connecting ring, 16-air bag, 17-main sealing edge, 18-auxiliary sealing edge, 19-buffer spring, 20-cylinder cover and 21-air outlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-4, the present invention discloses an oil core of a screw vacuum pump, comprising an outer cylinder 3 with an open top and an air inlet 1 and an oil outlet 2, and an inner cylinder 4 installed in the outer cylinder 3 and having an open top, wherein a cylinder cover 20 is installed at an open top of the inner cylinder 4, the cylinder cover 20 is communicated with an air outlet pipe 21, in the embodiment of the present invention: and a plurality of oil-gas separation core columns 5 are arranged in the inner cylinder 4.

By adopting the technical scheme, in daily use, oil mist enters the inner cavity of the outer cylinder 3 through the air inlet 1, then the oil enters a plurality of oil-gas separation core columns 5 arranged in the inner cylinder 4, the oil in the oil mist is separated in the inner cavity of the outer cylinder 3 by the oil-gas separation core columns 5, the clean air is discharged through an air outlet pipe 21 arranged at the top of the cylinder cover 20, the oil separated in the inner cavity of the outer cylinder 3 by the oil-gas separation core columns 5 is collected at the bottom of the inner cavity of the outer cylinder 3 and finally discharged out of the inner cavity of the outer cylinder 3 through the oil outlet pipe 2, different matching combinations are carried out on the oil-gas separation core column 5 according to different machine gas handling capacity, the modular design of the oil core is optimized, the assembly efficiency of the oil core is greatly improved, meanwhile, the types of the oil cores are reduced, large-scale production of single variety can be performed, the cost of the oil cores is further reduced, the production efficiency is improved, and the cost performance of the unit is improved.

In a specific embodiment of the utility model: run through about the inner tube 4 and its inner chamber middle part is equipped with mounting panel 6, be equipped with the screw hole on the mounting panel 6, 5 bottoms of oil-gas separation stem are equipped with the installation department 7 that has the external screw thread on the outer wall, installation department 7 and screw hole threaded connection.

Through adopting above-mentioned technical scheme, in daily use, oil-gas separation stem 5 has the threaded connection demountable installation at 6 tops of mounting panel with the threaded hole through the installation department 7 that has the external screw thread on the outer wall, until 5 bottom terminal surfaces of oil-gas separation stem and 6 top surfaces butts of mounting panel, through screw-thread fit's mode, makes things convenient for the installation of oil-gas separation stem 5 and dismantles the change.

In a specific embodiment of the utility model: and a hexagonal nut 8 is arranged at the top of the oil-gas separation core column 5.

Through adopting above-mentioned technical scheme, in daily use, through hexagon socket head cap nut's setting, when the workman need dismantle oil-gas separation stem 5 or install, with the cooperation with hexagon socket head cap nut and hexagon socket head cap nut with 8 adaptations of hexagon nut, it is rotatory to drive hexagon socket head cap nut, with installation department 7 from the screw hole screw out or with installation department 7 screw in screw hole in, make things convenient for the workman to install or dismantle hexagon socket head cap nut.

In a specific embodiment of the utility model: and a first annular groove is formed in the end surface of the bottom of the oil-gas separation core column 5, and a first sealing ring 9 is installed in the first annular groove.

Through adopting above-mentioned technical scheme, in daily use, set up first sealing washer 9 on 5 bottom terminal surfaces of oil-gas separation stem through first ring channel and can make and have good leakproofness between 5 bottom terminal surfaces of oil-gas separation stem and the 6 top surfaces of mounting panel, avoid the oil mist to directly reveal 4 inner chambers of inner tube from the gap between the external screw thread of 7 outer walls of installation portion and the screw hole, lead to the oil mist not to filter just from the open exhaust phenomenon in inner tube 4 top emergence of oil-gas separation stem 5.

In a specific embodiment of the utility model: the top of the inner barrel 4 is provided with a clamping edge 10, and the top of the outer barrel 3 is provided with a blocking edge 11 with the top surface abutting against the top surface of the clamping edge 10.

Through adopting above-mentioned technical scheme, in daily use, through the mutual butt of card edge 10 bottom surface and fender edge 11 top surface, with inner tube 4 fixed mounting in the 3 top openings of urceolus department, prevent that inner tube 4 from falling into 3 inner chambers of urceolus.

In a specific embodiment of the utility model: the top and the bottom of card edge 10 all are equipped with the second annular, install second sealing washer 12 in the second annular.

By adopting the technical scheme, in daily use, the arrangement of the second ring groove and the second sealing ring 12 improves the sealing performance between the bottom surface of the clamping edge 10 and the top surface of the blocking edge 11 and between the top surface of the clamping edge 10 and the cylinder cover 20, and avoids the phenomenon that oil mist leaks out of the outer cylinder 3 from the space between the bottom surface of the clamping edge 10 and the top surface of the blocking edge 11 or filtered gas leaks from a gap between the top surface of the clamping edge 10 and the cylinder cover 20.

In a specific embodiment of the utility model: the top of the blocking edge 11 is provided with a clamping block 13 of which the inner side wall is abutted against the outer side wall of the clamping edge 10.

Through adopting above-mentioned technical scheme, in daily use, through the setting of fixture block 13, restrict the mutual position between card edge 10 and fender edge 11, prevent that inner tube 4 from taking place to rock in outer tube 3 inner chamber.

In a specific embodiment of the utility model: be equipped with snap ring 14 around the 5 outsides of oil-gas separation stem on the 6 top surfaces of mounting panel, be equipped with third sealing washer 15 between the inside wall of snap ring 14 and the 5 lateral walls of oil-gas separation stem.

Through adopting above-mentioned technical scheme, in daily use, through the setting of third sealing washer 15, make the leakproofness between oil-gas separation stem 5 and the mounting panel 6 obtain further promotion, prevent that the oil mist from directly revealing to the inner chamber of inner tube 4 from the gap between the external screw thread of installation department 7 outer wall and the screw hole.

In a specific embodiment of the utility model: the third sealing ring 15 comprises an inner ring 151, an outer ring 152 and a connecting ring 153 for connecting the inner ring 151 and the outer ring 152, the inner side wall of the inner ring 151 is abutted to the outer side wall of the oil-gas separation core column 5, and the outer side wall of the outer ring 152 is abutted to the inner side wall of the clamping ring 14.

Through adopting above-mentioned technical scheme, in daily use, the go-between 153 that sets up between inner ring 151 and outer loop 152 takes place to warp under the influence of the vibrations that the cover operation produced, absorb vibrations, make the inside wall of inner ring 151 and the lateral wall of outer loop 152 respectively can keep inseparable with the contact between the lateral wall of oil-gas separation stem 5 and the snap ring 14 inside wall, avoid outer loop 152 or outer loop 152 to receive the influence that the vibrations are strikeed and appear the gap between 5 lateral walls of oil-gas separation stem or the snap ring 14 inside wall, lead to the phenomenon emergence that third sealing washer 15 can't play good sealed effect.

In a specific embodiment of the utility model: be equipped with gasbag 16 in the inner ring 151, install main sealed edge 17 and set up respectively at the main sealed edge 18 along the upper and lower both sides of main sealed edge 17 on the inside wall of snap ring 14, the top of main sealed edge 17 and the top of auxiliary sealed edge 18 all with the lateral wall butt of oil-gas separation stem 5.

Through adopting above-mentioned technical scheme, in daily use, through the setting of gasbag 16, the shock resistance of inner ring 151 has been improved, prevent that inner ring 151 from damaging because of receiving the influence that the vibrations were strikeed, through the setting of main seal along 17 and two vice sealed edges 18, the leakproofness between inner ring 151 inside wall and oil-gas separation stem 5 lateral wall has been improved, even if two vice sealed edges 18 receive the influence that the vibrations were strikeed and damage, main seal edge 17 still can make the leakproofness between inner ring 151 inside wall and the oil-gas separation stem 5 lateral wall, main seal edge 17 receives the influence that the vibrations were strikeed and damages, two vice sealed edges 18 still can make the leakproofness between inner ring 151 inside wall and the oil-gas separation stem 5 lateral wall.

In a specific embodiment of the utility model: a plurality of ring groove springs 19 are arranged between the outer side wall of the inner ring 151 and the inner side wall of the outer ring 152.

By adopting the technical scheme, in daily use, the shock impact is further absorbed through the arrangement of the buffer spring 19, and the inner ring 151 and the outer ring 152 are prevented from being damaged due to the influence of the shock impact.

In the specific embodiment of the utility model: the mounting plate 6 and the inner cylinder 4 are fixedly connected or integrally formed in a welding mode.

By adopting the technical scheme, the mounting plate 6 is tightly and firmly connected with the inner barrel 4 in daily use.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The utility model provides a screw vacuum pump oil content core, including having air inlet (1) and go out oil pipe (2) and open urceolus (3) in top, installing in urceolus (3) and open inner tube (4) in top, the uncovered department in inner tube (4) top installs cover (20), the intercommunication has outlet duct (21), its characterized in that on cover (20): and a plurality of oil-gas separation core columns (5) are arranged in the inner cylinder (4).

2. A screw vacuum pump oil wick according to claim 1, wherein: run through from top to bottom and its inner chamber middle part is equipped with mounting panel (6) inner tube (4), be equipped with the screw hole on mounting panel (6), oil-gas separation stem (5) bottom is equipped with installation department (7) that have the external screw thread on the outer wall, installation department (7) and screw hole threaded connection.

3. A screw vacuum pump oil wick according to claim 2, wherein: and a hexagonal nut (8) is installed at the top of the oil-gas separation core column (5).

4. A screw vacuum pump oil wick according to claim 1, wherein: the oil-gas separation core column is characterized in that a first annular groove is formed in the end face of the bottom of the oil-gas separation core column (5), and a first sealing ring (9) is installed in the first annular groove.

5. A screw vacuum pump oil wick according to claim 1, wherein: the top of the inner barrel (4) is provided with a clamping edge (10), and the top of the outer barrel (3) is provided with a blocking edge (11) with the top surface abutted to the top surface of the clamping edge (10).

6. A screw vacuum pump oil core according to claim 5, characterized in that: the top and the bottom of card edge (10) all are equipped with the second annular, install second sealing washer (12) in the second annular.

7. A screw vacuum pump oil core according to claim 5, characterized in that: the top of the blocking edge (11) is provided with a clamping block (13) with an inner side wall abutted against the outer side wall of the clamping edge (10).

8. A screw vacuum pump oil wick according to claim 2, wherein: be equipped with on mounting panel (6) top surface and encircle snap ring (14) in the oil-gas separation stem (5) outside, be equipped with third sealing washer (15) between the inside wall of snap ring (14) and oil-gas separation stem (5) lateral wall.

9. A screw vacuum pump oil wick according to claim 8, wherein: the third sealing ring (15) comprises an inner ring (151), an outer ring (152) and a connecting ring (153) used for connecting the inner ring (151) and the outer ring (152), the inner side wall of the inner ring (151) is abutted to the outer side wall of the oil-gas separation core column (5), and the outer side wall of the outer ring (152) is abutted to the inner side wall of the clamping ring (14).

10. A screw vacuum pump oil wick according to claim 9, wherein: be equipped with gasbag (16) in inner ring (151), install on the inside wall of snap ring (14) main seal along (17) and set up respectively at the main seal along the vice sealed edge (18) of both sides about (17), the top of main seal along (17) and the top of vice sealed edge (18) all with oil-gas separation stem (5) lateral wall butt.

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