Coal machine filter element

Abstract

The utility model relates to the technical field of filter elements, and discloses a coal machine filter element, which comprises a folding filter element main body, and further comprises a liftable folding seam scraping assembly and a guide conveying piece, the annular attaching piece is provided with a plurality of scraping positions attached to folding protruding parts on a folding filter element body, and the guiding and conveying piece is used for conducting vertical guiding when the folding seam scraping assembly ascends and descends. When the folding filter element main body is cleaned, the connecting ring can be manually moved up and down, the folding gap can be scraped by the scraping position through the up and down movement of the annular attaching sheet, and impurities in the folding gap can be effectively removed; the folding filter element which needs to consume a large amount of time originally and is not required to be cleaned up after being soaked and washed for multiple times can be quickly recovered to the optimal filtering state, and the cleaning efficiency of the folding filter element is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter core technical field, especially a coal machine filter core. BACKGROUND

[0002] The coal machine filter core is a filter element used in coal mine machinery (such as coal mining machine, heading machine, etc.), and mainly functions to filter out impurities in fluid (hydraulic oil, lubricating oil, etc.) to protect mechanical equipment from wear and damage and ensure normal operation of the equipment.

[0003] One of the common ways of using the coal machine folding filter core is the outside-in and inside-out type, that is, the oil to be filtered enters from the outside of the filter core, and the oil penetrates into the inside of the filter core through the folded filter material under the action of pressure, the filter material can block impurities, and the pure oil flows into the central channel in the inside of the filter core and then flows out from the central channel to enter the subsequent clean oil pipeline. This way can make impurities gradually accumulate on the outer surface of the filter core, and since the space on the outer surface is relatively large, it can accommodate more impurities to some extent, thereby prolonging the service life of the filter core. Moreover, this structure is convenient for observing the accumulation of impurities on the surface of the filter core, and when the filter core needs to be cleaned or replaced, the pollution degree of the filter core can be judged more intuitively. However, when actually cleaning, impurities will adhere to the folding gap of the folding filter core, and the conventional cleaning method often has little effect. Simple soaking and flushing can only flush away the impurities floating on the surface of the filter core, and has no effect on the dirt hidden in the folding gap. Although the high-pressure water gun has strong impact force, the fragile filter material can be easily deformed by the instantaneous impact of the strong water flow if the pressure is not properly controlled, which can make the filter core completely scrap. SUMMARY

[0004] The utility model provides a coal machine filter core to solve the problem that the folding gap of the existing coal machine folding filter core is easy to adhere to impurities and inconvenient to clean.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a coal machine filter core, comprising a folding filter core main body, an upper connecting cover is arranged at the upper end of the folding filter core main body, and a lower connecting cover is arranged at the lower end of the folding filter core main body, and further comprising:

[0006] The lifting folding gap scraping assembly comprises an annular fitting piece arranged outside the folding filter core main body, and the annular fitting piece has a plurality of scraping positions fitting the folding protruding parts on the folding filter core main body;

[0007] The guide member is arranged outside the folding filter core main body, and is used for vertical guiding when the folding gap scraping assembly is lifted.

[0008] Preferably, the folding seam scraping assembly further comprises a connecting ring sleeved outside the folding filter core body, a connecting plate is symmetrically connected to the lower end face of the connecting ring, and a connecting strip is connected between the bottom end of the connecting plate and the annular adhesive sheet.

[0009] Preferably, the guide member comprises:

[0010] A first fixing block is fixed to the upper end face edge of the upper connecting cover;

[0011] A second fixing block is fixed to the lower end face edge of the lower connecting cover, and the second fixing block is directly below the first fixing block;

[0012] A guide rod is fixed to the lower end face of the first fixing block at the top end, and the bottom end of the guide rod is detachably connected to the second fixing block.

[0013] Preferably, a through hole is formed in the connecting ring, and the guide rod penetrates through the through hole.

[0014] Preferably, a groove is formed in the lower end face of the second fixing block, and a nut is arranged in the groove and is screw-connected to the outer lower end of the guide rod.

[0015] Preferably, a connecting portion is protruded upward in the middle of the upper end face of the upper connecting cover, and an oil outlet channel is arranged on the connecting portion.

[0016] In the above technical solution, the technical effects and advantages of the present application are as follows:

[0017] (1) By arranging the folding seam scraping assembly, when the folding filter core body is cleaned, the connecting ring can be manually moved up and down, the annular adhesive sheet is moved up and down, the folding seam gap is scraped by the scraping position, and the impurities in the folding seam gap can be effectively removed. This manual operation and water flow washing method can quickly restore the folding filter core to the best filtering state, greatly improving the cleaning efficiency of the folding filter core.

[0018] (2) By arranging the guide member, when the connecting ring is manually moved up and down, the connecting ring with the through hole can move along the guide rod, so that the scraping position can always adhere to the folding protruding part of the folding filter core body, and it is not easy to appear a little bit misalignment and slip, so that the folding seam gap can be more thoroughly scraped to ensure the scraping effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0021] Figure 2 It is a schematic diagram of the overall structure of the present application Figure 1 It is a schematic diagram of the overall structure of the present application

[0022] Figure 3 It is a schematic diagram of the overall structure of the present application

[0023] Figure 4 It is a schematic diagram of the overall structure of the present application

[0024] Figure 5 It is a schematic diagram of the overall structure of the present application

[0025] Figure 6 It is a schematic diagram of the overall structure of the present application Figure 2

[0026] In the figure: 1, folding filter core body; 2, upper connecting cover; 3, lower connecting cover;

[0027] 4, folding seam scraping assembly; 41, connecting ring; 411, through hole; 42, annular adhesive sheet; 421, scraping position; 43, connecting plate; 44, connecting strip;

[0028] 5, guide member; 51, first fixed block; 52, guide rod; 53, second fixed block; 531, groove;

[0029] 6, nut. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] As Figures 1-6 ​As shown in the figure, a coal machine filter element includes a folded filter element body 1, the upper end of the folded filter element body 1 is provided with an upper connecting cover 2, the upper end surface of the upper connecting cover 2 is provided with a connecting part in the middle, the connecting part is provided with an oil outlet channel, the oil outlet channel is communicated with the upper end opening of the folded filter element body 1, and the lower end of the folded filter element body 1 is provided with a lower connecting cover 3, further comprising a folding seam scraping assembly 4 and a guide member 5, the folding seam scraping assembly 4 is liftable, and the folding seam scraping assembly 4 comprises an annular fitting piece 42 arranged outside the folded filter element body 1, the annular fitting piece 42 has a plurality of scraping positions 421 fitted with the folded protruding parts of the folded filter element body 1, the number of the scraping positions 421 is equal to the number of the folded protruding parts of the folded filter element body 1, so that each protruding part corresponds to a scraping position 421, and the guide member 5 is arranged outside the folded filter element body 1 and is used for vertical guiding when the folding seam scraping assembly 4 is lifted.

[0032] In addition, referring to Figures 3-5 As shown in the figure, the folding seam scraping assembly 4 further comprises a connecting ring 41 arranged outside the folded filter element body 1, the lower end surface of the connecting ring 41 is symmetrically connected with a connecting plate 43, and the connecting plate 43 is connected with a connecting strip 44 between the bottom end and the annular fitting piece 42, when cleaning the folded filter element body 1, the connecting ring 41 outside the folded filter element body 1 can be manually moved up and down, the scraping positions 421 are in the folding seams of the folded filter element body 1, and the folding seams are scraped by the scraping positions 421 through the up-and-down movement of the annular fitting piece 42, so that impurities in the folding seams can be effectively removed, and the folding filter element which may not be cleaned by a large amount of time and multiple soaking and flushing can be quickly restored to the best filtering state through the manual operation and the water flow flushing cleaning mode, and the efficiency of cleaning the folding filter element is greatly improved.

[0033] Referring to Figure 3 As shown in the figure, the guide member 5 comprises:

[0034] A first fixed block 51 is fixed to the upper end surface edge of the upper connecting cover 2;

[0035] A second fixed block 53 is fixed to the lower end surface edge of the lower connecting cover 3, and the second fixed block 53 is located directly below the first fixed block 51;

[0036] A guide rod 52 is fixed to the lower end surface of the first fixed block 51 at the top end, and the bottom end of the guide rod 52 is detachably connected to the second fixed block 53.

[0037] Among them, participating Figure 5 As shown in the figure, a through hole 411 is formed in the connecting ring 41, and the guide rod 52 penetrates through the through hole 411.

[0038] In summary, when the connecting ring 41 is moved up and down manually, the connecting ring 41 with the perforation 411 can be moved up and down along the guide rod 52, so that the annular fitting sheet 42 can be positioned and guided, and the scraping position 421 can be always fitted on the folded protruding part on the folded filter core body 1. No matter the speed of the worker is fast or slow, or the hand is slightly shaking, the scraping position 421 can be fitted on the folded protruding part, and it is not easy to appear a little bit misplacement or slip, so that the folded seam can be scraped more completely, and the scraping effect can be ensured.

[0039] In addition, the lower end surface of the second fixing block 53 is provided with a recess 531, and the recess 531 is provided with a nut 6, and the nut 6 is screwed and connected to the outer lower end of the guide rod 52.

[0040] Through the above, the bottom end of the guide rod 52 can be detachably connected to the second fixing block 53, so that after the upper connecting cover 2 is removed, the folded seam scraping assembly 4 can be disassembled. When the guide member 5 is installed, the upper connecting cover 2 can be covered, the bottom end of the guide rod 52 penetrates through the second fixing block 53, and then the nut 6 is rotated to limit the guide rod 52 on the second fixing block 53 from the bottom end.

[0041] The above is only a preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A coal machine filter element, comprising a folded filter element body (1), the upper end of the folded filter element body (1) is provided with an upper connecting cover (2), and the lower end of the folded filter element body (1) is provided with a lower connecting cover (3), characterized in that, Also included are: A liftable and foldable crevice scraping assembly (4) comprising a ring-shaped fitting sheet (42) arranged outside the foldable filter core body (1), the ring-shaped fitting sheet (42) having a plurality of scraping positions (421) for fitting the folded protrusions on the foldable filter core body (1); A guide member (5) arranged outside the foldable filter core body (1) and used for vertical guiding when the foldable crevice scraping assembly (4) is lifted.

2. A filter cartridge for a coal machine as defined in claim 1, wherein: The foldable crevice scraping assembly (4) further comprises a connecting ring (41) arranged outside the foldable filter core body (1), the lower end of the connecting ring (41) is symmetrically connected with a connecting plate (43), and the bottom end of the connecting plate (43) is connected with the ring-shaped fitting sheet (42) through a connecting strip (44).

3. A coal filter element according to claim 2, characterised in that: The guide member (5) comprises: A first fixed block (51) fixed to the upper end surface edge of the upper connecting cover (2); A second fixed block (53) fixed to the lower end surface edge of the lower connecting cover (3), and the second fixed block (53) is located directly below the first fixed block (51); A guide rod (52) having a top end fixed to the lower end surface of the first fixed block (51), and a bottom end detachably connected to the second fixed block (53).

4. A filter cartridge for a coal machine as defined in claim 3, wherein: The connecting ring (41) is provided with a through hole (411), and the guide rod (52) penetrates through the through hole (411).

5. A filter cartridge for a coal machine as defined in claim 3, wherein: The lower end surface of the second fixed block (53) is provided with a groove (531), and a nut (6) is arranged in the groove (531), and the nut (6) is screw-connected to the outer lower end of the guide rod (52).

6. A filter cartridge for a coal machine as defined in claim 1, wherein: The upper end surface of the upper connecting cover (2) is provided with a connecting portion protruding upward in the middle, and the connecting portion is provided with an oil outlet channel.

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