CN212429048U

CN212429048U - Oil feeding wire assembly of air filter

Info

Publication number: CN212429048U
Application number: CN202020990906.3U
Authority: CN
Inventors: 史忠可; 田传宝
Original assignee: Wuxi Yili Environmental Protection Technology Co Ltd; Hebei Yili Technology Co Ltd
Current assignee: Wuxi Yili Environmental Protection Technology Co Ltd; Hebei Yili Technology Co Ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-01-29
Anticipated expiration: 2030-06-03

Abstract

The utility model discloses an air cleaner's lower oily silk assembly, filtering layer, whirl dish are installed in the chassis, set up the first opening of a plurality of net on the bottom plate on chassis, the lateral surface of bottom plate, correspond every first opening and extend down respectively and form the chimb. The utility model discloses the lateral surface of the bottom plate on lower oil silk assembly's chassis, it forms the round chimb to correspond the first opening of every net and extend down respectively, oil that is separated by the filtering layer drips under the effect of surface tension, can be along the internal face landing to the lower border of chimb of the first opening of net and chimb, oil drips to drip to certain weight after the effect of gravity downwards, fall back to on the food tray of shell down, avoid the deposit oil on the chassis to drip, the oil strain efficiency of oil silk assembly has been guaranteed down, and then ensure the holistic filtration efficiency of oil bath formula air cleaner.

Description

Oil feeding wire assembly of air filter

Technical Field

The utility model belongs to the technical field of internal-combustion engine air intake system's air cleaner and specifically relates to an air cleaner's lower oily silk assembly.

Background

Oil bath air cleaners are commonly used in the intake system of internal combustion engines to pre-filter the air entering the engine and to filter out impurities in the air. The oil bath type air filter mainly takes oil and a metal wire filter layer as main filter materials, air is used for impacting engine oil, the engine oil absorbs impurities in the air, the air carrying oil mist is filtered by the metal wire filter layer, relatively clean air is discharged, and then the air is input into a next-stage fine filter.

After the existing oil bath type air filter is used for a long time, more oil drops can be deposited at the bottom of a grating of a chassis of an oil discharge wire assembly, so that the oil filtering efficiency of the oil discharge wire assembly is reduced, and the integral filtering efficiency of the oil bath type air filter is further influenced.

SUMMERY OF THE UTILITY MODEL

The applicant provides the oil feeding assembly of the air filter with a reasonable structure aiming at the defects that the oil feeding assembly of the existing oil bath type air filter has more deposited oil drops and reduces the oil filtering efficiency after being used for a long time, and the like.

The utility model discloses the technical scheme who adopts as follows:

a filter layer and a rotational flow disk are arranged in a chassis, a bottom plate of the chassis is provided with a plurality of grid first openings, and the outer side surface of the bottom plate, corresponding to each first opening, respectively extends downwards to form convex edges.

The utility model discloses the lateral surface of the bottom plate on lower oil silk assembly's chassis, it forms the round chimb to correspond the first opening of every net and extend down respectively, oil that is separated by the filtering layer drips under the effect of surface tension, can be along the internal face landing to the lower border of chimb of the first opening of net and chimb, oil drips to drip to certain weight after the effect of gravity downwards, fall back to on the food tray of shell down, avoid the deposit oil on the chassis to drip, the oil strain efficiency of oil silk assembly has been guaranteed down, and then ensure the holistic filtration efficiency of oil bath formula air cleaner.

As a further improvement of the above technical solution:

a plurality of vent holes are formed in the left side of the base plate, and a second rib plate is arranged between every two adjacent vent holes.

The utility model discloses a second gusset has between the adjacent air vent on chassis, and the increase strength avoids taking place to warp.

A second upright post is vertically arranged on the inner side surface of the bottom plate upwards, and a through hole is formed in the center of the second upright post; the filtering layer and the rotational flow disk are arranged on the second upright post in a penetrating way.

The height of the downward extending convex edge is more than or equal to 3 mm.

At least one rotational flow fan is arranged on the rotational flow disk, and a plurality of blades are arranged on the rotational flow fan along the circumferential direction.

The blades are inclined downwards at a certain angle; the side of the blade at the low position is bent downwards to form a bent part.

The blades of the cyclone fan of the utility model are inclined downwards by a certain angle, after the air flow passes through the blades, the air flow turns to form cyclone, oil drops in the air flow are further separated under the action of rotating centrifugal force, the oil filtering efficiency of the oil feeding wire assembly is ensured, and the integral filtering efficiency of the oil bath type air filter is further ensured; one side of the oil drop separator positioned at the oblique lower side of the adjacent blade is bent downwards to form a bent part, and the oil drop separated by the blade can slide along the bent part, so that the oil drop deposition is avoided.

The adjacent blades have a certain gap in the horizontal direction.

The width D of the gap is more than or equal to 7mm and less than or equal to 10 mm.

The utility model discloses an adjacent blade has certain clearance in the horizontal direction, reduces the resistance when guaranteeing the whirl fan and form the whirl effect, avoids the backpressure of air current too big.

One end of each blade is fixed on the outer wall surface of the outer ring, the outer ring is connected with the inner ring through a plurality of spokes which are uniformly arranged, and a plurality of second openings are formed between the outer ring and the spokes of the inner ring.

The utility model discloses a form a plurality of second openings between a plurality of spokes of the outer loop of the whirl dish of lower oilsilk assembly and inner ring for the drainage partly air current, the area of overflowing of giving vent to anger of increase air current avoids the area of overflowing undersize of giving vent to anger and increases the backpressure of giving vent to anger.

The internal structure of the filtering layer is a labyrinth grid formed by winding and staggering oil filaments.

The utility model has the advantages as follows:

The utility model discloses a form a plurality of second openings between a plurality of spokes of the outer loop of the whirl dish of lower oilsilk assembly and inner ring for the drainage partly air current, the area of overflowing of giving vent to anger of increase air current avoids the area of overflowing undersize of giving vent to anger and increases the backpressure of giving vent to anger. The blades of the cyclone fan are inclined downwards by a certain angle, airflow turns to form cyclone after passing through the blades, oil drops in the airflow are further separated under the action of rotating centrifugal force, the oil filtering efficiency of the oil feeding wire assembly is guaranteed, and the integral filtering efficiency of the oil bath type air filter is further guaranteed; one side of the oil drop separator positioned at the oblique lower side of the adjacent blade is bent downwards to form a bent part, and the oil drop separated by the blade can slide along the bent part, so that the oil drop deposition is avoided. The adjacent blades have certain gaps in the horizontal direction, so that the resistance is reduced while the rotational flow effect of the rotational flow fan is ensured, and the overlarge back pressure of air flow is avoided.

Drawings

Fig. 1 is an exploded view of an air cleaner according to the present invention.

Fig. 2 is a sectional view of an air cleaner according to the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a perspective view of the inner case.

Fig. 5 is a cross-sectional view of fig. 4.

Fig. 6 is an exploded view of the present invention.

Fig. 7 is a perspective view of the chassis of the present invention.

Fig. 8 is a top view of fig. 7.

Fig. 9 is a sectional view of B-B in fig. 8.

Fig. 10 is an enlarged view of a portion C in fig. 8.

FIG. 11 is a top view of a spinning disk.

FIG. 12 is a cross-sectional view taken along line D-D of FIG. 11.

In the figure: 1. an upper housing; 11. an air inlet; 12. an air outlet; 13. a first lower flanging; 14. a first recessed portion;

2. an inner shell; 21. an air intake passage; 22. an air outlet channel; 23. a flange; 24. a partition plate; 241. an inclined portion; 242. a vertical portion; 25. a first rib plate; 26. enclosing plates; 27. a first upright post; 28. erecting ribs; 29. second lower flanging;

3. oiling a silk assembly;

4. a oiling wire assembly; 41. a chassis; 410. a base plate; 411. a second upright post; 412. a first opening; 413. a vent hole; 414. a second rib plate; 415. a convex edge; 42. a filtering layer; 43. a spinning disk; 430. a swirl fan; 431. a vertical plate; 432. a blade; 433. an outer ring; 434. spokes; 435. an inner ring; 436. a second opening; 437. a bending section; 438. a gap;

5. a lower housing; 51. upward flanging; 52. a second recessed portion;

6. a first seal member; 61. a groove; 62. upward convex strips; 63. a lower convex strip;

7. erecting a rod; 8. an oil pan; 9. a kit; 91. third lower flanging; 92. a transverse straight portion; 10. a second seal member; 100. and (4) engine oil.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 and 2, an upper housing 1 of the air cleaner of the present invention is fixed to a lower housing 5 by a snap connection; the upper outer shell 1 is provided with a vertical air inlet 11 and an air outlet 12 which inclines outwards for a certain angle, the inner shell 2 is fixedly arranged in the upper outer shell 1 through a fastener, and a sealing element is arranged between the inner shell 2 and the upper outer shell 1, so that the influence of air leakage in a gap between the inner shell 2 and the upper outer shell 1 on the filtering effect is avoided; the inner shell 2 is internally provided with a partition plate 24 which partitions the inside of the inner shell 2 into an air inlet channel 21 and an air outlet channel 22, the air inlet channel 21 is communicated with the air inlet 11, the air outlet channel 22 is communicated with the air outlet 12, the air inlet channel 21 and the air outlet channel 22 are communicated with the inner cavity of the lower outer shell 5, the air outlet channel 22 is internally provided with the upper oil silk assembly 3, the lower oil silk assembly 4 is arranged in the lower outer shell 5 and positioned right below the upper oil silk assembly 3, the thickness of the upper oil silk assembly 3 is at least twice that of the lower oil silk assembly 4, and the risk of oil loss is reduced; an upright rod 7 penetrates between the upper oiled silk assembly 3 and the lower oiled silk assembly 4, the upper oiled silk assembly 3, the lower oiled silk assembly 4 and the upright rod 7 are fixed through fasteners respectively, and the upper part of the upright rod 7 penetrates out of the upper oiled silk assembly 3 and extends into a corresponding mounting hole of the inner shell 2; a porous oil pan 8 is fixed in the lower shell 5 and below the lower oil wire assembly 4, the engine oil 100 is placed at the bottom of the inner cavity of the lower shell 5 and below the oil pan 8, and the liquid level of the engine oil 100 is lower than the oil pan 8 under the normal condition.

As shown in fig. 1, the upper outer shell 1, the inner shell 2, the lower outer shell 5 and the lower oil filament assembly 4 are sealed by a first sealing element 6 and a second sealing element 10; as shown in fig. 3, the lower end of the upper shell 1 is bent to form a first lower flange 13 and a first concave portion 14; the lower end of the inner shell 2 protrudes outwards to form a flange 23; a sleeve 9 is sleeved between the upper outer shell 1 and the inner shell 2, the lower end part of the sleeve 9 is bent to form a third lower flanging 91 and a horizontal straight part 92, and the top surface of the horizontal straight part 92 is tightly attached to the bottom surface of the first concave part 14 of the upper outer shell 1; the upper end part of the lower shell 5 is bent to form an upper flanging 51 and a second concave part 52, and the chassis 41 of the lower oil silk assembly 4 is placed on the top surface of the second concave part 52; the first sealing element 6 is arranged among the external member 9, the inner shell 2 and the lower oil silk assembly 4, a groove 61 is formed in the inner side surface of the first sealing element inwards, two upper convex strips 62 and two lower convex strips 63 are respectively protruded on the upper end surface and the lower end surface of the first sealing element, the flange 23 of the inner shell 2 is clamped and embedded in the groove 61, the upper convex strips 62 and the lower convex strips 63 are respectively pressed on the bottom surface of the horizontal straight part 92 of the external member 9 and the top surface of the chassis 41 of the lower oil silk assembly 4, and the sealing among the external member 9, the inner shell 2 and the lower oil silk assembly; the second sealing element 10 is a sealing strip with a square cross section and is arranged between the upper shell 1, the external member 9 and the lower shell 5, the outer side surface of the second sealing element 10 is tightly attached to the inner wall surface of the first lower flanging 13 of the upper shell 1, the upper flanging 51 of the lower shell 5 is extruded and tightly attached to the lower end surface of the second sealing element 10, the upper end surface of the second sealing element 10 is extruded and tightly attached to the corresponding inner wall surface of the upper shell 1, sealing among the upper shell 1, the external member 9 and the lower shell 5 is realized, and the sealing reliability is high.

As shown in fig. 4 and 5, the height of the left side wall surface of the inner casing 2 corresponding to the air inlet channel 21 is greater than the height of the right side wall surface of the corresponding air outlet channel 22, the upper portion of the partition plate 24 is inclined to the right by a certain angle toward the direction of the air outlet channel 22 to form an inclined portion 241 and a vertical portion 242 at the lower portion, the height of the vertical portion 242 is equivalent to the height of the front, rear and right side wall surfaces of the inner casing 2, an air outlet corresponding to the inclined air outlet 12 is formed in the air outlet channel 22, as shown in fig. 2, the inclined portion 241 is opposite to the air inlet 11 of the upper outer casing 1, an air flow direction changing acceleration chamber is formed at the upper portion of the air inlet channel 21, the air flow enters the air flow direction changing acceleration chamber from the air inlet 11 and impinges on the inclined surface of the inclined portion 241 of the partition plate 24, a part, glide along the inclined plane, fall to the bottom of 5 inner chambers of shell under, the air current that the striking becomes backward gets into the lower part of inlet channel 21, because the flow area of inlet channel 21 lower part reduces, therefore the speed of air current increases, the air current passes through the air current diversion after accelerating the chamber, can rush into in machine oil 100 with higher speed, and the oil pressure of machine oil 100, viscosity increases along with the degree of depth increase, the initial velocity increase of machine oil 100 is rush into to the air current, can get into the deeper of machine oil 100, more do benefit to machine oil 100 and filter the impurity absorption in the air current, the filtration efficiency is higher, especially when low temperature low flow operating mode, the air current obtains sufficient initial velocity after accelerating and rush into machine oil 100, make machine oil 100 can filter the impurity in the air current, influence less to holistic filtration efficiency, the filtration efficiency is higher. As shown in fig. 5, the included angle α between the inclined portion 241 of the partition plate 24 and the horizontal plane is in the range of 30 to 50 degrees, so that while the air flow is effectively primarily intercepted and filtered and sufficiently accelerated, the sufficient air outlet flow area of the air outlet channel 22 can be ensured, and the increase of the air outlet back pressure due to the excessively small air outlet flow area is avoided; as shown in fig. 4 and 5, a plurality of first rib plates 25 are vertically arranged between the vertical portion 242 of the partition plate 24 and the corresponding inner wall surface of the inner shell 2, so that the supporting strength between the inner shell 2 and the partition plate 24 is increased, and the collapse deformation between the inner shell 2 and the partition plate 24 is avoided. A circle of coamings 26 are vertically arranged at the top end of the inner shell 2 and above the inclined part 241 upwards to form a square air flow inlet so as to guide the air in the air inlet 11 to enter an air flow direction-changing accelerating cavity of the air inlet channel 21; a plurality of first upright posts 27 are respectively vertically arranged on the left outer side and the right outer side of the enclosing plate 26, and mounting holes are formed in the first upright posts 27 and used for mounting fasteners and fixedly connecting the inner shell 2 with the upper outer shell 1; vertical ribs 28 are respectively arranged between the adjacent first upright columns 27 and between each first upright column 27 and the wall surface of the enclosing plate 26, so that the strength is increased, and the deformation is avoided. As shown in fig. 5, the top end of the vertical portion 242 of the partition plate 24 and the top ends of the front and rear wall surfaces and the right side wall surface of the inner casing 2 corresponding to the air outlet channel 22 are bent downward to form a second turned-down edge 29 for pressing the sealing member between the inner casing 2 and the top surface of the upper wire assembly 3 to seal therebetween.

As shown in fig. 2 and 6, a filter layer 42 and a swirl disk 43 are sequentially arranged in a bottom plate 41 of the lower oil silk assembly 4 from inside to outside; the internal structure of filtering layer 42 is the tiny net of the crisscross maze form of winding of oil silk, and when the air current passed through filtering layer 42, the oil drop in the air current received the effect of surface tension, was blockked at a plurality of tiny net surfaces, received gravity and surface tension effect, by the big oil drop of little oil collection, big oil drop is dropped downwards under the effect of gravity. As shown in fig. 6 to 8, the left side of the chassis 41 corresponding to the air intake channel 21 has a plurality of vent holes 413, and a second rib plate 414 is arranged between adjacent vent holes 413 to increase the strength and avoid deformation; as shown in fig. 7, the right side of the chassis 41 is in the shape of a flat square box with an open top, and two second upright columns 411 are erected upward on the inner side of the bottom plate 410, as shown in fig. 6, the filter layer 42 and the cyclone disk 43 are arranged on the second upright columns 411 in a penetrating manner, and a through hole is formed in the center of the second upright columns 411 for the upright column 7 to penetrate; as shown in fig. 7, 9, and 10, a plurality of grid first openings 412 are uniformly formed in a bottom plate 410 of a chassis 41, the outer side surface of the bottom plate 410 and each grid first opening 412 respectively extend downwards to form a circle of convex edge 415, the height of the downward extension of the convex edge 415 is greater than or equal to 3mm, oil drops separated by a filter layer 42 can slide down to the lower edge of the convex edge 415 along the inner wall surfaces of the grid first openings 412 and the convex edge 415 under the action of surface tension, and the oil drops accumulate to a certain weight and then drop down and return to an oil pan 8 of a lower housing 5 under the action of gravity, so that oil drops are prevented from being deposited on the chassis 41, the oil filtering efficiency of a lower oil wire assembly 4 is ensured, and the overall filtering efficiency of an oil bath type air cleaner is further ensured.

As shown in fig. 11, at least one swirl fan 430 is arranged in the swirl disk 43 of the oil drop wire assembly 4 in the approximately square outer frame along the length direction, in this embodiment, a pair of swirl fans 430 is symmetrically arranged, a vertical plate 431 is erected between the two swirl fans 430, a plurality of blades 432 of each swirl fan 430 are fixedly arranged on the outer wall surface of the outer ring 433 at the center along the circumferential direction, and the outer end portions of the blades 432 are fixed on the inner wall surface of the outer frame and the wall surface of one side corresponding to the vertical plate 431; the outer ring 433 is connected with an inner ring 435 through a plurality of spokes 434 which are uniformly arranged, and a central through hole of the inner ring 435 is used for penetrating the second upright column 411 and the upright rod 7; a plurality of second openings 436 are formed between the outer ring 433 and the spokes 434 of the inner ring 435 for guiding a part of the air flow to increase the air outlet flow area of the air flow, thereby preventing the air outlet back pressure from increasing due to the excessively small air outlet flow area. As shown in fig. 12, the blades 432 of the cyclone fan 430 are inclined downward by a certain angle, the airflow turns to form a cyclone after passing through the blades 432, oil drops in the airflow are further separated under the action of a rotating centrifugal force, the oil filtering efficiency of the oil feeding yarn assembly 4 is ensured, and the overall filtering efficiency of the oil bath type air filter is further ensured; the vanes 432 are positioned obliquely below the adjacent vanes 432, and one side of the vanes 432 positioned at a lower position is bent downwards to form a bent part 437, so that oil droplets separated by the vanes 432 can slide down along the bent part 437, and the oil droplets are prevented from being deposited; as shown in FIG. 11, a certain gap 438 is formed between adjacent blades 432 in the horizontal direction, and the width D of the gap 438 is not less than 7mm and not more than 10mm, so that the resistance is reduced while the swirling effect of the swirling fan 430 is ensured, and the excessive back pressure of the airflow is avoided.

Adopt the utility model discloses an during air cleaner in-service use, the air current gets into the air current diversion chamber with higher speed on inlet channel 21 upper portion from air inlet 11, strike on the inclined plane of the rake 241 of baffle 24, carry out the prefilter, go into inlet channel 21's lower part after the diversion with higher speed, air vent 413 on the chassis 41 of following oily silk assembly 4 passes through and rush into in the machine oil 100 of food tray 8 below, in the machine oil 100 with the air current in the particle adsorption filtration back that the particle diameter is greater than more than 1000 microns, turn to upwards loop through the oily silk assembly 4 of lower of outlet channel 22, go up oily silk assembly 3 and peel off the filtration back with oil drop, discharge from gas outlet 12.

The above description is illustrative of the present invention and is not intended to limit the present invention, and the present invention may be modified in any manner without departing from the spirit of the present invention.

Claims

1. The utility model provides an air cleaner's lower oily silk assembly, filtering layer (42), whirl dish (43) are installed in chassis (41), its characterized in that: a bottom plate (410) of the chassis (41) is provided with a plurality of grid first openings (412), and the outer side surface of the bottom plate (410) and corresponding first openings (412) respectively extend downwards to form a convex edge (415).

2. The air cleaner bottom nozzle assembly of claim 1, wherein: a plurality of vent holes (413) are formed in the left side of the base plate (41), and a second rib plate (414) is arranged between every two adjacent vent holes (413).

3. The air cleaner bottom nozzle assembly of claim 1, wherein: a second upright column (411) is vertically arranged on the inner side surface of the bottom plate (410) upwards, and a through hole is formed in the center of the second upright column (411); the filtering layer (42) and the rotational flow disk (43) are arranged on the second upright column (411) in a penetrating way.

4. The air cleaner bottom nozzle assembly of claim 1, wherein: the height of the downward extension of the convex edge (415) is more than or equal to 3 mm.

5. The air cleaner bottom nozzle assembly of claim 1, wherein: at least one cyclone fan (430) is arranged on the cyclone disk (43), and a plurality of blades (432) are arranged on the cyclone fan (430) along the circumferential direction.

6. The air cleaner bottom nozzle assembly of claim 5, wherein: the blades (432) are inclined downwards at a certain angle; the blade (432) is bent downward at the lower side to form a bent portion (437).

7. The air cleaner bottom nozzle assembly of claim 5, wherein: adjacent blades (432) have a gap (438) in the horizontal direction.

8. The air cleaner bottom nozzle assembly of claim 7, wherein: the width D of the gap (438) is more than or equal to 7mm and less than or equal to 10 mm.

9. The air cleaner bottom nozzle assembly of claim 5, wherein: one end of each blade (432) is fixed on the outer wall surface of the outer ring (433), the outer ring (433) is connected with the inner ring (435) through a plurality of spokes (434) which are uniformly arranged, and a plurality of second openings (436) are formed between the outer ring (433) and the spokes (434) of the inner ring (435).

10. The air cleaner bottom nozzle assembly of claim 5, wherein: the internal structure of the filtering layer (42) is a labyrinth-shaped grid formed by winding and staggering oil filaments.