CN114504895A

CN114504895A - A filter equipment for vacuum pump

Info

Publication number: CN114504895A
Application number: CN202111474944.9A
Authority: CN
Inventors: 卜庆团
Original assignee: XES Industrial Jiangsu Co ltd
Current assignee: XES Industrial Jiangsu Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-17

Abstract

The invention discloses a filtering device for a vacuum pump, and relates to the technical field of vacuum pumps. The invention comprises a shell, a rotating ring mechanism and a cleaning ring; the inner wall of the shell is connected with a fixing ring, and the inner bottom wall is connected with a filter element through a fixing pipe; the fixed ring is rotationally connected with a screw rod, and the lower end of the screw rod is connected with a driven wheel; the rotating ring mechanism comprises an outer ring and an inner ring, and the outer ring is connected with the inner ring through spokes; the outer ring is connected with an end face gear ring and an inner gear ring meshed with the driven wheel, and the spokes are connected with brush strips; the cleaning ring is provided with a threaded hole matched with the screw rod and is connected with an annular brush; the output shaft of the driving motor extends into the shell and is connected with a driving wheel meshed with the end face gear ring. According to the invention, the cleaning ring and the filter element are arranged in the shell, and the screw rod drives the cleaning ring to axially move, so that the filter element is cleaned under the condition that the vacuum pump does not stop, the working efficiency of the equipment is effectively improved, and the integral production efficiency is ensured.

Description

A filter equipment for vacuum pump

Technical Field

The invention belongs to the technical field of vacuum pumps, and particularly relates to a filtering device for a vacuum pump.

Background

The vacuum pump is a device or equipment which utilizes a vacuum pump and a physical, chemical or physical-chemical method to pump air to a pumped container to obtain vacuum, and is widely applied to industries such as metallurgy, chemical engineering, food, electronic coating and the like.

Chinese utility model CN202020408264.1 discloses a vacuum pump that possesses environment-friendly filter equipment, through the inside filter screen that is provided with of casing, plays and filters dust and granule in getting into the vacuum pump gas. However, the filter screen is not convenient to clean or replace, the filter screen needs to be disassembled from the filtering device when being cleaned or replaced, the vacuum pump needs to be stopped, the working efficiency of the vacuum pump or production equipment is seriously affected, and the production efficiency is low.

Disclosure of Invention

The invention aims to provide a filtering device for a vacuum pump, which is characterized in that a cleaning ring and a filter element are arranged in a shell, and the cleaning ring is driven by a lead screw to axially move, so that the filter element is cleaned under the condition that the vacuum pump is not stopped, and the problem that the production efficiency is influenced because the vacuum pump needs to be stopped in the conventional filtering cleaning process is solved.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a filtering device for a vacuum pump, which comprises a shell with a cylindrical structure, a rotating ring mechanism, a cleaning ring and a driving motor. The lower end of the shell is provided with an air outlet pipe connected with a vacuum pump, and the upper end of the shell is provided with an air inlet pipe; the inner wall of the shell is fixedly connected with a fixing ring, the inner bottom wall of the shell is provided with a chip removal port, and the fixing ring is fixedly connected with a fixing pipe communicated with the air outlet pipe; the lower surface of the shell is fixedly connected with a chip removal pipe communicated with the chip removal port, and the chip removal pipe is plugged through a threaded plug; the fixing ring is rotatably connected with a plurality of screw rods, the lower ends of the screw rods penetrate through the fixing ring and are fixedly connected with driven wheels; the fixed pipe upper end fixedly connected with filter core, and the filter core diameter less than or equal to the external diameter of fixed pipe.

The rotating ring mechanism comprises an outer ring and an inner ring which is rotatably connected with the outer wall of the fixed pipe, and the outer ring and the inner ring are fixedly connected through a plurality of spokes; the upper surface of the outer ring is fixedly connected with an end face gear ring and an inner gear ring meshed with the driven wheel; the spokes are connected with brush strips which are in contact with the bottom wall in the shell.

The cleaning ring is provided with threaded holes which are matched with the screw rods one by one; the upper surface of the cleaning ring is connected with an annular brush which is used for driving the cleaning ring to axially move through a screw rod, and the surface of the filter element is cleaned through the annular brush; when the lower surface of the cleaning ring is attached to the fixing ring, the inner wall of the cleaning ring is matched with the fixing pipe, so that a closed chamber is formed between the cleaning ring and the bottom wall of the shell; the driving motor is connected with the outer wall of the shell; an output shaft of the driving motor extends into the shell and is fixedly connected with a driving wheel meshed with the end face gear ring.

Furthermore, a sliding groove is axially formed in the screw rod; the upper surface of the cleaning ring is rotatably connected with a rotating sleeve in clearance fit with the screw rod; the inner wall of the rotating sleeve is fixedly connected with a sliding block in clearance fit with the sliding groove, and the outer wall of the rotating sleeve is fixedly connected with a driving wheel; the upper surface of the cleaning ring is rotatably connected with a transmission ring; the outer wall of the transmission ring is fixedly connected with an outer gear ring meshed with the transmission wheel, and the annular hairbrush is fixed on the inner wall of the transmission ring.

Furthermore, the upper end of the shell is connected with an end cover through a screw, and the lower surface of the end cover is fixedly connected with a shaft seat matched with the upper end of the screw rod.

Further, the air inlet pipe is arranged on the upper surface of the end cover.

Further, the air inlet pipe is arranged on the side wall of the shell.

Further, a flange is arranged at the upper end of the fixed pipe; the cleaning ring is provided with a ring groove matched with the flange.

Further, the upper surface of the flange is of a bevel structure.

Furthermore, the lower surface of the cleaning ring and the inner wall of the ring groove are both attached with rubber layers.

Furthermore, the circumference array of the upper surface of the fixed pipe is provided with a plurality of screws, and the screws are connected with a pressing plate and used for pressing and fixing the filter element on the upper end surface of the fixed pipe through the pressing plate.

The invention has the following beneficial effects:

according to the invention, the screw rod is rotatably connected with the fixing ring in the shell, the fixing pipe is connected with the filter element, the cleaning ring is driven by the screw rod to move, the surface of the filter element is cleaned, and the foreign matters falling on the inner bottom wall of the shell are cleaned into the chip removal pipe by the brush strip through the rotation of the rotating ring mechanism, so that the filter element is cleaned under the condition that the vacuum pump is not stopped, the working efficiency of equipment is effectively improved, and the integral production efficiency is ensured.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

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

FIG. 1 is a schematic view of a filter device for a vacuum pump according to the present invention;

FIG. 2 is a front view of the structure of FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken at B-B of FIG. 2;

FIG. 5 is an enlarged view of the structure of the portion C in FIG. 3;

FIG. 6 is an enlarged view of the structure of the portion D in FIG. 3;

FIG. 7 is a schematic structural view of a rotating ring mechanism;

FIG. 8 is a schematic view of the sweeping ring;

FIG. 9 is a half sectional view of the sweep ring;

FIG. 10 is a schematic view of the sweeping ring engaging the retainer ring and retainer tube;

FIG. 11 is a schematic view of the cleaning ring positioned on top of the cartridge;

in the drawings, the components represented by the respective reference numerals are listed below:

1. the cleaning device comprises a shell, 2, a rotating ring mechanism, 3, a cleaning ring, 4, a driving motor, 101, an air outlet pipe, 102, an air inlet pipe, 103, a fixing ring, 104, a chip removal port, 105, a fixing pipe, 106, a chip removal pipe, 107, a screw rod, 108, a driven wheel, 109, a filter element, 110, a sliding groove, 111, an end cover, 112, a shaft seat, 113, a flange, 114, a screw rod, 115, a pressing plate, 201, an outer ring, 202, an inner ring, 203, spokes, 204, an end face gear ring, 205, an inner gear ring, 206, a brush strip, 301, a threaded hole, 302, an annular brush, 303, a rotating sleeve, 304, a sliding block, 305, a driving wheel, 306, a driving ring, 307, an outer gear ring, 308, a ring groove, 401 and a driving wheel.

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.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

Example one

Referring to fig. 1 and 2, the present invention is a filter device for a vacuum pump, which includes a cylindrical housing 1, a rotating ring mechanism 2, a cleaning ring 3, and a driving motor 4. The lower end of the shell 1 is provided with an air outlet pipe 101 connected with a vacuum pump, and the upper end of the shell is provided with an air inlet pipe 102.

Specifically, the upper end of the casing 1 is connected with an end cover 111 through a screw, and the air inlet pipe 102 is arranged on the upper surface of the end cover 111, so that the end cover 11 can be detached, and the inside of the casing 1 can be conveniently overhauled. Meanwhile, the bottom of the shell 1 can be arranged to be a detachable structure, so that the shell 1 can be conveniently detached and overhauled from the bottom.

As shown in fig. 3 and 4, a fixing ring 103 is welded to the inner wall of the housing 1, an exhaust port 104 is opened to the inner bottom wall of the housing 1, and a fixing pipe 105 communicating with the outlet pipe 101 is welded or screwed to the inner bottom wall of the housing 1. The lower surface of the shell 1 is welded with a chip removal pipe 106 communicated with the chip removal port 104, and the chip removal pipe 106 is plugged by a threaded plug.

The fixed ring 103 is rotatably connected with four screw rods 107, the lower ends of the screw rods 107 penetrate through the fixed ring 103, and the driven wheels 108 are fixedly connected with the screw rods 107. Wherein, the fixed surface of end cover 111 is connected with axle bed 112 with lead screw 107 upper end complex, realizes spacing lead screw 107 upper end through axle bed 112, stability when improving lead screw 107 and rotating.

The upper end of the fixed pipe 105 is fixedly connected with a filter element 109, and the diameter of the filter element 109 is smaller than or equal to the outer diameter of the fixed pipe 105. Specifically, four screws 114 are circumferentially arranged on the upper surface of the fixed pipe 105 in an array, the screws 114 are fixed to the fixed pipe 105 through welding or threaded connection, and the screws 114 are connected with a pressing plate 115 through nuts, so that the filter element 109 is pressed down and fixed to the upper end surface of the fixed pipe 105 through the pressing plate 115.

When the filter element 109 is installed, the filter element 109 is sleeved outside the four screw rods 114, the pressing plate 115 is pressed on the upper end face of the filter element 109, the four screw rods 114 penetrate through the connecting holes of the pressing plate 115, the four screw rods are locked by nuts, the pressing plate 115 is pressed downwards, the filter element 109 is fixed on the upper end face of the fixed pipe 105, air flow can only pass through the side wall of the filter element 109, and therefore air flow filtration is achieved.

As shown in fig. 5 and 7, the rotating ring mechanism 2 includes an outer ring 201 and an inner ring 202 rotatably connected to the outer wall of the fixed pipe 105, and the outer ring 201 and the inner ring 202 are fixedly connected by four to six spokes 203, and at the same time, the outer ring 201 and the inner ring 202 are concentrically arranged, and the outer wall of the outer ring 201 is attached to the inner wall of the housing 1.

The upper surface of the outer ring 201 is fixedly connected with an end face gear ring 204 and an inner gear ring 205 meshed with the driven wheel 108, and the spokes 203 are connected with brush bars 206 contacted with the inner bottom wall of the shell 1, so that the brush bars 206 clean the inner bottom wall of the shell 1 through the rotation of the rotating ring mechanism 2 and push the cleaned foreign matters into the chip removal port 104.

As shown in fig. 8 and 9, the cleaning ring 3 is provided with threaded holes 301 which are matched with the screw rods 107 one by one, and the axial movement of the cleaning ring 3 is driven by the rotation of the screw rods 107. The upper surface of the cleaning ring 3 is connected with an annular brush 302, and the annular brush 302 is used for driving the cleaning ring 3 to axially move through the screw rod 107 and cleaning the surface of the filter element 109.

The driving motor 4 is connected with the outer wall of the shell 1 through a motor support, an output shaft of the driving motor 4 extends into the shell 1, and is fixedly connected with a driving wheel 401 meshed with the end face gear ring 204, so that the driving motor 4 drives the outer ring 201 to rotate, namely, the rotation of the rotating ring mechanism 2 is realized.

As shown in fig. 3, when the filter element 109 needs to be cleaned, the driving motor 4 is started to drive the rotating ring mechanism 2 to rotate, and the inner gear ring 205 on the outer ring 201 is engaged with the driven wheel 108, so that the four screw rods 107 synchronously rotate, and then the cleaning ring 3 is driven to move from top to bottom, and the surface of the filter element 109 is cleaned by the annular brush 302.

The cleaned foreign matter falls onto the inner bottom wall of the shell 1, the spokes 203 drive the brush bars 206 to clean the inner bottom wall of the shell 1 in the rotation process of the rotating ring mechanism 2, and when the foreign matter is cleaned to the position of the chip removal port 104, the foreign matter falls into the chip removal pipe 106 through the chip removal port 104.

As shown in fig. 10, when the cleaning ring 3 moves to the bottom, i.e. the lower surface of the cleaning ring 3 is attached to the fixing ring 103, the inner wall of the cleaning ring 3 is fitted to the fixing tube 105, so that a sealed chamber is formed between the cleaning ring 3 and the bottom wall of the housing 1. Wherein, the inner wall of the cleaning ring 3 can be pasted with a sealing strip, thereby improving the sealing effect with the fixed pipe 105.

At this time, the driving motor 4 is stopped, and the screw stopper of the chip discharge pipe 106 is removed, so that the foreign matter inside the chip discharge pipe 106 is discharged. Because clean ring 3 and fixed ring 103 and fixed pipe 105 and laminate each other for clean and form airtight cavity between ring 3 and casing 1 diapire, consequently, the vacuum pump can not make the air current get into inside the casing 1 by chip removal pipe 106 in the process of bleeding, thereby make the foreign matter discharge smoothly, thereby realize under the circumstances that the vacuum pump does not shut down, realize the automatic clearance to filter core 109, improved the work efficiency of equipment, guaranteed holistic production efficiency.

As shown in fig. 3 and 11, after the cleaning is completed, the chip removal pipe 106 is blocked by the threaded plug, and the cleaning ring 3 is made to ascend to the top of the casing 1 by the reverse rotation of the driving motor 4, so that the filter element 109 can be cleaned next time.

When the filter element 109 needs to be replaced, the end cover 111 is detached from the shell 1, then the pressing plate 115 is detached, the filter element 109 can be drawn out, after a new filter element 109 is replaced, the pressing plate 115 is installed again for fixing, and finally the end cover 111 is installed.

Example two

In addition to the first embodiment, as shown in fig. 3, 9 and 10, the flange 113 is provided at the upper end of the fixed pipe 105, the cleaning ring 3 is provided with a ring groove 308 adapted to the flange 113, and the sealing effect between the cleaning ring 3 and the fixed pipe 105 can be improved by the fitting of the ring groove 308 to the flange 113.

And, the upper surface of flange 113 is the inclined plane structure for flange 113 wholly becomes the round platform structure, and the annular groove 308 roof is the inclined plane structure of its adaptation equally, through inclined plane contact cooperation, is favorable to further improvement to clean the airtight effect between ring 3 and the fixed tube 105, cleans the lower surface of ring 3 simultaneously to and the inner wall of annular groove 308 all pastes and has the rubber layer, thereby makes the airtight effect between cleaning ring 3 and the fixed tube 105 more reliable and more stable.

The upper surface of the flange 113 is an inclined surface structure, so that the falling foreign matters can slide to the inner bottom wall of the housing 1 more easily, and the occurrence of the situation that the foreign matters are remained on the surface of the flange 113 is reduced.

EXAMPLE III

On the basis of the first or second embodiment, as shown in fig. 4 to 6 and 9, the screw 107 is axially provided with a sliding groove 110. The upper surface of the cleaning ring 3 is welded with a shaft sleeve, and a rotating sleeve 303 which is in clearance fit with the screw rod 107 is rotationally connected in the shaft sleeve. The inner wall of the rotating sleeve 303 is fixedly connected with a sliding block 304 which is in clearance fit with the sliding groove 110, so that the screw rod 107 can synchronously drive the rotating sleeve 303 to rotate in the rotating process, and the outer wall of the rotating sleeve 303 is fixedly connected with a driving wheel 305.

The upper surface of the cleaning ring 3 is welded with an annular rib, the annular rib and the fixed pipe 105 are concentrically arranged, the outer wall of the annular rib is rotatably connected with a transmission ring 306, the outer wall of the transmission ring 306 is fixedly connected with an outer gear ring 307 meshed with the transmission wheel 305, and the annular brush 302 is fixed on the inner wall of the transmission ring 306.

Clean the in-process, the rotation through lead screw 107 drives and cleans 3 axial displacement of ring, and drive through lead screw 107 and rotate set 303 and rotate, it drives transmission ring 306 through drive wheel 305 and outer ring gear 307 meshing to rotate set 303, drive annular brush 302 then and rotate, make annular brush 302 along filter element 109 surface from top to bottom the removal in-process, rotate in step, thereby effectual improvement is to the cleaning power and the clearance effect on filter element surface, improve holistic cleaning efficiency.

Example four

On the basis of the first embodiment, the second embodiment or the third embodiment, as shown in fig. 11, the air inlet pipe 102 is disposed on the side wall of the housing 1, and at this time, when the cleaning ring 3 moves to the top of the housing 1, the air inlet pipe 102 is located below the cleaning ring 3, so that the air entering the housing 1 enters the cleaning ring 3, is directly filtered by the side surface of the filter element 109, enters the fixed pipe 105, and enters the vacuum pump through the air outlet pipe 101. The foreign matters in the air flow are prevented from remaining on the surface of the cleaning ring 3 or the surface of the annular brush 302.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A filter arrangement for a vacuum pump, comprising:

the device comprises a shell (1) with a cylindrical structure, wherein the lower end of the shell (1) is provided with an air outlet pipe (101) connected with a vacuum pump, and the upper end of the shell is provided with an air inlet pipe (102); the inner wall of the shell (1) is fixedly connected with a fixing ring (103), the inner bottom wall of the shell (1) is provided with a chip removal port (104), and a fixing pipe (105) communicated with the air outlet pipe (101) is fixedly connected with the chip removal port; a chip removal pipe (106) communicated with the chip removal port (104) is fixedly connected to the lower surface of the shell (1), and the chip removal pipe (106) is blocked by a threaded plug;

the fixing ring (103) is rotatably connected with a plurality of screw rods (107), the lower ends of the screw rods (107) penetrate through the fixing ring (103), and are fixedly connected with driven wheels (108); the upper end of the fixed pipe (105) is fixedly connected with a filter element (109), and the diameter of the filter element (109) is smaller than or equal to the outer diameter of the fixed pipe (105);

the rotating ring mechanism (2), the rotating ring mechanism (2) includes an outer ring (201), and an inner ring (202) which is rotatably connected with the outer wall of the fixed pipe (105), and the outer ring (201) and the inner ring (202) are fixedly connected through a plurality of spokes (203);

the upper surface of the outer ring (201) is fixedly connected with an end face gear ring (204) and an inner gear ring (205) meshed with the driven wheel (108); the spokes (203) are connected with brush strips (206) which are in contact with the inner bottom wall of the shell (1);

the cleaning ring (3) is provided with threaded holes (301) which are matched with the screw rods (107) one by one; the upper surface of the cleaning ring (3) is connected with an annular brush (302) which is used for driving the cleaning ring (3) to axially move through a screw rod (107), and the surface of the filter element (109) is cleaned through the annular brush (302);

when the lower surface of the cleaning ring (3) is attached to the fixing ring (103), the inner wall of the cleaning ring (3) is matched with the fixing pipe (105), so that a closed chamber is formed between the cleaning ring (3) and the bottom wall of the shell (1);

the driving motor (4), the said driving motor (4) is connected with outer wall of body (1); an output shaft of the driving motor (4) extends into the shell (1) and is fixedly connected with a driving wheel (401) meshed with the end face gear ring (204).

2. A filtering device for a vacuum pump according to claim 1, characterized in that said screw (107) is axially provided with a chute (110); the upper surface of the cleaning ring (3) is rotationally connected with a rotating sleeve (303) which is in clearance fit with the screw rod (107); the inner wall of the rotating sleeve (303) is fixedly connected with a sliding block (304) in clearance fit with the sliding groove (110), and the outer wall of the rotating sleeve is fixedly connected with a driving wheel (305);

the upper surface of the cleaning ring (3) is rotationally connected with a transmission ring (306); the outer wall of the transmission ring (306) is fixedly connected with an outer gear ring (307) meshed with the transmission wheel (305), and the annular brush (302) is fixed on the inner wall of the transmission ring (306).

3. A filter device for a vacuum pump according to claim 1 or 2, wherein an end cap (111) is connected to the upper end of the housing (1) through a screw, and a shaft seat (112) matched with the upper end of the screw rod (107) is fixedly connected to the lower surface of the end cap (111).

4. A filter arrangement for a vacuum pump according to claim 3, wherein the inlet tube (102) is provided to an upper surface of the end cap (111).

5. A filtering arrangement for a vacuum pump according to claim 3, characterized in that the air inlet tube (102) is provided in a side wall of the housing (1).

6. A filtering device for a vacuum pump according to claim 1, characterized in that the upper end of the fixed tube (105) is provided with a flange (113); the cleaning ring (3) is provided with a ring groove (308) matched with the flange (113).

7. A filter arrangement for a vacuum pump according to claim 6, wherein the upper surface of the flange (113) is of a bevelled configuration.

8. A filter device for a vacuum pump according to claim 6 or 7, characterized in that the lower surface of the cleaning ring (3) and the inner wall of the annular groove (308) are rubberized.

9. The filtering device for the vacuum pump as claimed in claim 1, wherein the fixed tube (105) is provided with a plurality of screws (114) on the circumferential array of the upper surface, and the screws (114) are connected with a pressing plate (115) for pressing and fixing the filter element (109) on the upper end surface of the fixed tube (105) through the pressing plate (115).