CN202366535U

CN202366535U - Filter

Info

Publication number: CN202366535U
Application number: CN 201120474952
Authority: CN
Inventors: 郭继强
Original assignee: Zhuzhou Nanfang Gas Turbine Packaging and Installation Co Ltd
Current assignee: Zhuzhou Nanfang Gas Turbine Packaging and Installation Co Ltd
Priority date: 2011-11-24
Filing date: 2011-11-24
Publication date: 2012-08-08
Anticipated expiration: 2021-11-24

Abstract

The utility model provides a filter, which comprises a shell, wherein the shell is provided with an inlet and an outlet, the horizontal position of the inlet is higher than the horizontal position of the outlet, a filter screen which can replace different filter meshes is further arranged in the shell, and the filter screen is arranged between the inlet and the outlet. The filter can replace the filter screens with different filter meshes according to concentration of liquid, can achieve the purpose that impurities in the liquid are smoothly filtered and collected, simultaneously leads the liquid to be more rapidly and smoothly filtered by increasing intensity of pressure of a cavity chamber arranged on the filter.

Description

Filter

Technical field

The utility model relates to the lubricating arrangement field, especially, relates to a kind of filter that is used for filtering lubricant oil.

Background technology

For the machinery equipment that high-speed bearing, precision gear transmission, precise hydraulic transmission are installed, like generator, steam turbine, Hydraulic Station etc., its lubricating oil system is generally closed circulation system.But each element of lubricating oil system can leave impurity such as iron filings, welding slag, the grains of sand unavoidably in lubricating oil system in the welding assembly process.

Though lubricating oil system is equipped with filter,, if when the denseer thick or flow of the lubricating oil that is filtered is big, screen pack causes the screen pack oil return freely not overflow because of filtering the higher meeting of order number, and then reduction is to the lubrication of entire machine equipment; If the rarer thick or flow of the lubricating oil that is filtered hour, the order number is low can to cause impurity to collect not exclusively to screen pack because of filtering, and then machinery equipment is caused heel and toe wear and fault.

The utility model content

The utility model purpose is to provide a kind of filter, and to solve when the denseer thick or flow of the lubricating oil that is filtered is big, screen pack causes the screen pack oil return freely not overflow because of the higher meeting of filtration order number; When the rarer thick or flow of the lubricating oil that is filtered hour, the order number is low can to cause impurity to collect incomplete technical problem to screen pack because of filtering.

For realizing above-mentioned purpose; An aspect according to the utility model provides a kind of filter, and this filter comprises a housing; Housing is provided with import and outlet; The horizontal level of import is higher than the horizontal level of outlet, also is provided with the replaceable different filter screen that filters the order number in the housing, and filter screen is between import and outlet.

Further, the inwall of housing circumferentially is provided with a protruding circle, and filter also comprises the gland that is provided with a plurality of first through holes, and gland presses on the periphery of filter screen on the protruding circle.

Further, filter also comprises the filtration skeleton, and the filter screen pocket is located at and is filtered in the skeleton, and filter screen is arranged between gland and the protruding circle with the filtration skeleton.

Further, gland also is provided with connecting hole, and housing comprises an opening, and opening part is covered with a cover plate, and the inwall of cover plate is provided with a connecting rod, and connecting rod is fixed in the connecting hole.

Further, the free end of connecting rod is placed in the connecting hole, and free end is set with a back-up ring.

Further, connecting rod is equipped with an elastic, and the two ends of elastic compress the inwall of cover plate and the wall of gland respectively.

Further, filter also comprises a swivelling cover, and an end of swivelling cover is installed on the sidewall of housing pivotally; A lever is installed on the other end of swivelling cover, removably is provided with a bolt on the housing, lever is through being threadedly connected to bolt.

Further, the lateral wall of the opening part of housing is provided with a retainer plate, and swivelling cover is installed on retainer plate through a rotating shaft, and swivelling cover presses on cover plate around rotating shaft.

Further, bolt is arranged at retainer plate, and swivelling cover is provided with an installing hole, and bolt sleeve is connected in lever after placing installing hole.

Further, be provided with first sealing gasket between filtration skeleton and the protruding circle.

Further, be provided with second sealing gasket between the opening of cover plate and housing.

The utlity model has following beneficial effect:

The filter of the utility model can be changed the filter screens that difference is filtered the order numbers according to the density of liquid, can reach to filter purpose unobstructed and that collect impurity in the liquid, simultaneously, through the pressure of increase filter upper chamber, thereby makes liquid filtering more unobstructed sooner.

Except top described purpose, feature and advantage, the utility model also has other purpose, feature and advantage.To do further detailed explanation to the utility model with reference to figure below.

Description of drawings

The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:

Fig. 1 is the structure of filter sketch map of the utility model preferred embodiment.

The specific embodiment

Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.

Referring to Fig. 1, the filter of the utility model comprises a housing 1, and the sidewall of housing 1 is provided with the import 10 of perforation and exports 12, and the horizontal level of import 10 is higher than the horizontal level of outlet 12.Be provided with a filter screen 11 in the housing 1.Filter screen 11 is arranged between import 10 and the outlet 12.Filter screen 11 is separated into upper chamber and lower chambers with the inner chamber of housing 1.Need filtered liquid to connect import 10 through feed tube (figure does not show) and flow in the upper chamber, liquid flows into lower chambers after filter screen 11 filters, and the drain pipe that the liquid after the filtration connects through outlet 12 again (figure does not show) feedway is lubricated.The bottom of housing 1 also is provided with a fuel outlet 16, and in the process that filter is filtering, fuel outlet 16 is blocked; When the needs filter rinsed, can open fuel outlet 16 excess oil in the housing 1 is emitted.

The inwall of housing 1 circumferentially is set with a protruding circle 13.Protruding circle 13 can adopt the mode of welding to be fixed in the inwall of housing 1.For prolonging the service life of filter screen 11, outside filter screen 11, have additional filter screen skeleton 15, thereby filter screen 11 pockets are located in the filter screen skeleton 15.After filter screen 11 overlaped up and down with filter screen skeleton 15, its edge was pressed on the protruding circle 13, and gland 14 of clinching on protruding circle 13 is pressed between gland 14 and the protruding circle 13 with the edge with filter screen 11 and filter screen skeleton 15 again.Gland 14 is provided with a plurality of first through holes 141, so that liquid passes through, and the middle part of gland 14 is provided with connecting hole 143.When liquid is flowed through first through hole 141 of gland 14 when impacting filter screen 11 downwards through import 10, because of the carrying of filter screen skeleton 15 is arranged, thereby be difficult for making filter screen 11 to be broken through by liquid.Preferably, between filter screen skeleton 15 and protruding circle 13, be provided with first sealing gasket 18.Be further enhanced leaktightness effect, the upper surface of protruding circle 13 is for being provided with double wedge 131, and when first sealing gasket 18 during because of external force effect pressed downward, the double wedge 131 of protruding circle 13 and first sealing gasket 18 are closely chimeric.

For cleaning easily and safeguarding gland 14 and the filter screen 11 that is arranged at housing 1, the opening part of housing 1 is provided with a cover plate 3.The inwall vertical fixing of the cavity in housing 1 of cover plate 3 is provided with a connecting rod 31.After the free end of connecting rod 31 passes the connecting hole 143 of gland 14, be set with a back-up ring 33 at its free end again, come off from gland 14 to prevent connecting rod 31.Connecting rod 31 is equipped with an elastic 37, the elastic 37 preferred springs that adopt.The two ends of elastic 37 compress the inwall of cover plate 3 and the upper wall surface of gland 14 respectively.Be handled easily, the outer wall of cover plate 3 is set with one handle 35.When needs clean and when inspection gland 14 and filter screen 11, only need through mentioning handle 35, the back-up ring 33 of connecting rod 31 with gland 14 backstops be placed on the connecting rod 31, clean and check thereby can gland 14 be pulled out in the housing 1; Again filter screen 11 and filter screen skeleton 15 are shifted out in the housing 1 filter screen 11 and filter screen skeleton 15 are cleaned and check together.In addition, can also change the different filter screens 11 that filter the order number according to the density of different liquids.Like this, can be because of the filtration order number of filter screen 11 too high and feasible denseer thick liquid be difficult for filtering and overflowing, can not can not get collecting completely because of the impurity of the too low and feasible rarer thick liquid of filtration order number of filter screen 11 yet.

Housing 1 is sealing state when making filter filter, and is provided with second sealing gasket 20 between the end wall of the opening part of cover plate 3 and housing 1.

In order to make housing 1 reach better sealing effectiveness, filter also is provided with a compressing member.Compressing member comprises a swivelling cover 51.For swivelling cover 51 is installed on filter, the lateral wall of the opening part of housing 1 circumferentially is set with a retainer plate 17.Swivelling cover 51 is installed on retainer plate 17 through a rotating shaft 53.Swivelling cover 51 can rotating shaft 53 for the axle center rotates to a certain angle.When filter was in running order, swivelling cover 51 pressed on the cover plate 3.Swivelling cover 51 with rotating shaft 53 relative sides one lever 55 is installed.Preferably, retainer plate 17 and lever 55 corresponding position axis are to being provided with a dismountable bolt 171.Swivelling cover 51 is provided with an installing hole, and the installing hole rear thread that bolt 171 passes swivelling cover 51 is connected in lever 55.Bolt 171 is arranged at retainer plate 17 through a bearing pin 173.When needs are opened swivelling cover 51, earlier bearing pin 173 is pulled out, make bolt 171 separate with retainer plate 17, open swivelling cover 51 again and get final product.

When filter filters liquid, block fuel outlet 16, import 10 is connected in feed tube, and outlet 12 is connected in drain pipe.Liquid is in import 10 enters into housing 1.Simultaneously; Lever 55 is down rotated; Because being threaded of lever 55 and bolt 171; Make swivelling cover 51 under the effect of lever 55, move down through the screw mandrel principle, and then force cover plate 3 also to move down pushing second sealing gasket 20, thereby make and form a hermetic cavity body in the housing 1.When liquid viscosity is bigger, when filter screen 11 can't in time filter, through being rotated down the pressure of lever 55, thereby make liquid filter quickly with the upper chamber that increases housing 1.The process that moves down when cover plate 3 simultaneously, the connecting rod 31 of cover plate 3 also moves down, and makes the elastic 37 that is placed on connecting rod 31 compress.The elastic force of elastic 37 makes gland 14 more tightly filter screen 11 and filter screen skeleton 15 pressed on protruding circle 13, is difficult for making filter screen 11 and filter screen skeleton 15 from slippage between gland 14 and the protruding circle 13.Therefore, when 11 pairs of liquid of filter screen filter, strengthen the pressure of the upper chamber of housing 1, can be so that liquid filters quickly.

At other embodiment of the utility model, can adopt the pressure of the upper chamber of supercharging device increase housing 1, with the filtration of accelerating liquid.

To sum up; The filter of the utility model can be changed the different filter screens 11 that filter the order number according to the density of liquid, can reach to filter purpose unobstructed and that collect impurity in the liquid, simultaneously; Through the pressure of increase filter upper chamber, thereby make liquid filtering more unobstructed sooner.

The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims

1. filter; It is characterized in that; Said filter comprises a housing (1), and said housing (1) is provided with import (10) and outlet (12), and the horizontal level of said import (10) is higher than the horizontal level of said outlet (12); Also be provided with the replaceable different filter screen (11) that filters the order number in the said housing (1), said filter screen (11) is positioned between said import and the said outlet (12).

2. filter according to claim 1; It is characterized in that; The inwall of said housing (1) circumferentially is provided with a protruding circle (13); Said filter also comprises the gland (14) that is provided with a plurality of first through holes (141), and said gland (14) presses on the periphery of said filter screen (11) on the said protruding circle (13).

3. filter according to claim 2; It is characterized in that; Said filter also comprises and filters skeleton (15), and said filter screen (11) pocket is located in the said filtration skeleton (15), and said filter screen (11) and said filtration skeleton (15) are arranged between said gland (14) and the said protruding circle (13).

4. filter according to claim 2; It is characterized in that; Said gland (14) also is provided with connecting hole (143), and said housing (1) comprises an opening, and said opening part is covered with a cover plate (3); The inwall of said cover plate (3) is provided with a connecting rod (31), and said connecting rod (31) is fixed in the said connecting hole (143).

5. filter according to claim 4 is characterized in that, the free end of said connecting rod is placed in the said connecting hole (143), and said free end is set with a back-up ring (33).

6. according to claim 4 or 5 described filters, it is characterized in that said connecting rod (31) is equipped with an elastic (37), the two ends of said elastic (37) compress the inwall of said cover plate (3) and the wall of said gland (14) respectively.

7. filter according to claim 6 is characterized in that, said filter also comprises a swivelling cover (51), and an end of said swivelling cover (51) is installed on the sidewall of said housing (1) pivotally; A lever (55) is installed on the other end of said swivelling cover (51), removably is provided with a bolt (171) on the said housing (1), said lever (55) is through being threadedly connected to said bolt (171).

8. filter according to claim 7; It is characterized in that; The lateral wall of the said opening part of said housing (1) is provided with a retainer plate (17); Said swivelling cover (51) is installed on said retainer plate (17) through a rotating shaft (53), and said swivelling cover (51) presses on said cover plate (3) around said rotating shaft (53).

9. filter according to claim 8; It is characterized in that; Said bolt (171) is arranged at said retainer plate (17), and said swivelling cover (51) is provided with an installing hole (511), and said bolt (171) is connected in said lever (55) after being placed on said installing hole (511).

10. filter according to claim 3 is characterized in that, is provided with first sealing gasket (18) between said filtration skeleton (15) and the said protruding circle (13).

11. filter according to claim 4 is characterized in that, is provided with second sealing gasket (20) between the said opening of said cover plate (3) and said housing (1).