CN203447870U

CN203447870U - Engine oil filter

Info

Publication number: CN203447870U
Application number: CN201320544760.XU
Authority: CN
Inventors: 张兵; 孟祥东; 孙鹏飞; 邓松杰
Original assignee: QINGDAO JOWON MECHANICAL AND ELECTRICAL CO Ltd
Current assignee: QINGDAO JOWON MECHANICAL AND ELECTRICAL CO Ltd
Priority date: 2013-09-03
Filing date: 2013-09-03
Publication date: 2014-02-26
Anticipated expiration: 2023-09-03

Abstract

The utility model discloses an engine oil filter. The engine oil filter comprises a shell, a filter element, a hollow shaft, a connecting seat and a base, wherein the connecting seat is fixed to the base; an oil inlet pipeline and an oil outlet pipeline are arranged on the base; an upper cover covers the top end of the shell; the filter element is arranged in the shell; the hollow shaft is welded to the center of the shell; a through hole is formed in the center of the upper cover; the bottom end of the hollow shaft is fixedly connected with the shell; a filter screen is arranged at the top end of the hollow shaft, and the top end of the hollow shaft is inserted into the through hole of the upper cover; the filter element comprises a metal body and a bleached cotton thread layer; a plurality of filter holes and ribs are formed in the circumferential wall of the metal body; the ribs rise up spirally; the height of each rib is 0.4 to 0.6mm; a welding seam is formed in the top end of each rib. The bleached cotton thread layer is in a honeycomb structure, so that a fluid can be deeply filtered to ensure maximization of the filter accuracy. By virtue of the ribs, threads are unlikely to slide during winding, a thread winding layer is regular, and the filter effect is good.

Description

Oil strainer

Technical field

The utility model relates to a kind of filter, relates in particular to a kind of oil strainer of removing machine well cuts.

Background technology

At present, what oil strainer adopted conventionally is paper filter element, paper filter element filter effect when just bringing into use is better, and that still uses is more of a specified duration, and paper filter element will be blocked by oil, mud foreign material etc., because the pressure of machine oil makes paper filter element distortion, when pressure is excessive, safety valve to be opened, machine oil directly enters oil duct, at this moment machine oil does not filter at all, also can cause the impaired of machine components.

As everyone knows, the proportion of metal is larger than oil and water, but being suspended in the metal of oil in dense is to exist with tiny particulate form, and oil and water are to infiltrate liquid to metal, so each metal particle is adsorbing various fluid molecules around, the metal particle proportion that makes to be scattered in fluid is more much smaller than the proportion of bulk still genus, these particle metals are subject to the buoyancy of fluid, so be to be difficult for precipitation at short notice, the ratio escheat of nonmetallic inclusion is little, just more difficult precipitation.Especially be subject to the restriction of fuel tank size, fluid can not get static for a long time, by the precipitation method, cannot solve dregs of fat purifying problem, even if it is also of no avail to add baffle plate.

Use plain filter, filter effect is bad, and this is because filter area is restricted, and a large amount of impurity in fluid can make oil filter stop up very soon, and as can be seen here, existing oil strainer is further improved.

Utility model content

In order to solve above-mentioned problems of the prior art, the utility model proposes a kind of oil strainer, this filter filters at many levels step by step, has expanded filter area, gradually reduces the amount of impurities on filter screen, has improved the handling capacity of liquid.

Technical solutions of the utility model comprise:

A kind of oil strainer, comprise housing, filter core, hollow shaft, Connection Block and base, wherein, described Connection Block is fixed on base, on described base, be provided with in-line and fuel-displaced pipeline, a upper cover is stamped on described housing top, described Connection Block and upper cover are threaded connection, described filter core is placed in housing, described housing center is also welded with a hollow shaft along filter core axial direction, described upper cover center is provided with through hole, bottom and the housing of described hollow shaft are connected, the top of described hollow shaft is provided with filter screen, top is inserted in described upper cover and is fitted tightly, described shape of through holes, the end shape of size and hollow shaft, size matches, described filter core comprises cylindrical metal body and bleaching cotton thread layer, bleaching cotton thread layer is that the periphery that is wrapped in metal body by bleaching cotton thread forms, in described metal body circle wall, offer several filter openings and be spiralling convex ridge, the height of described convex ridge is 0.4～0.6mm, and the top of described convex ridge is provided with weld seam.

As a preferred version of the present utility model, above-mentioned bleaching cotton thread is wrapped on metal body and forms and bleach cotton thread layer, and described bleaching cotton thread layer is close cellular structure in outer dredging.

As another preferred version of the present utility model, above-mentioned metal body is rolled into by steel band or brass band.

Above-mentioned filter opening is circular or oval.

The height of above-mentioned convex ridge is 0.5mm.

The useful technique effect that the utility model brings:

The utility model proposes a kind of oil strainer, compared with prior art, the utility model filter core comprises cylindrical metal body and bleaching cotton thread layer, bleaching cotton thread layer is wrapped in the periphery of metal body, in metal body circle wall, offer several filter openings and be spiralling convex ridge, the height of convex ridge is that the top of convex ridge is provided with weld seam described in 0.4～0.6mm, because bleaching cotton thread layer is close setting in outer dredging from the outer to the inner, and be cellular structure, can carry out in-depth filtration by convection cell, effectively remove impurity, guarantee maximum filtering precision; Owing to there being the existence of convex ridge, during coiling, be difficult for sliding, wire winding layer is regular, good filtration effect, projection itself plays reinforcement, can make the intensity of metal body increase, and has guaranteed that it has enough rigidity, adapts to especially High Pressure Difference and filters environment; It is large that bleaching cotton thread holds dirty ability, and porosity is high; The speck suspending in the effective filtering liquid of this filter energy and gas or particulate etc., be generally used for the filtration of high viscosity, low impurity content fluid.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is done to further clear, complete explanation:

Fig. 1 is the structural representation of the utility model oil strainer;

Fig. 2 is the exploded view of the utility model oil strainer;

In figure, 1, base, 2, Connection Block, 3, upper cover, 4, hollow shaft, 5, filter core, 6, housing.

The specific embodiment

The utility model proposes a kind of oil strainer, in order to make the purpose of this utility model, technical scheme and advantage clearer, clear and definite, below with reference to specific embodiment, the utility model is further described.

As shown in Figure 1 and Figure 2, the utility model, a kind of oil strainer, it comprises housing 6, filter core 5, hollow shaft 4, Connection Block 2, base 1 and upper cover 3, wherein, the preferred housing 6 of the present embodiment is cylindrical and its sealed bottom, open top, and upper cover 3 covers on the top of housing 6 housing 6 is sealed, on base 1, be provided with in-line and fuel-displaced pipeline, Connection Block 2 is connected on this base 1;

Filter core 5 is placed in housing 6, housing 6 centers are welded with a hollow shaft 4, and hollow shaft 4 along filter core 5 axially on, upper cover 3 centers are provided with through hole, this through hole can make hollow shaft 4 insertions and combination firmly, the bottom of the bottom of hollow shaft 4 and housing 6 is connected, the top inlet place of hollow shaft 4 is provided with filter screen, the size of this filter screen, the size of shape and hollow shaft 4 import departments, shape is suitable, and insert in the through hole of upper cover 3 at top, between upper cover 3 and Connection Block, by screw thread, be closely connected, the shape of above-mentioned through hole, the top shape of size and hollow shaft 4, size matches,

Above-mentioned filter core 5 comprises cylindrical metal body and bleaching cotton thread layer (not shown), the present embodiment preferably drum shape metal body is rolled into by steel band or brass band, guarantee that it has enough rigidity, metal body is the skeleton of filter core, the periphery that bleaching cotton thread is wrapped in metal body forms bleaching cotton thread layer, and while being wound around, first close rear thin from inside to outside, form many gaps, and then close cellular structure in dredging outside forming, can carry out in-depth filtration by convection cell, effectively remove impurity, guarantee maximum filtering precision;

In above-mentioned metal body circle wall, offer several filter openings and be spiralling convex ridge, filter opening be shaped as circle or ellipse, filter opening provides passage for machine oil turnover, the height of convex ridge is 0.4～0.6mm, the top of convex ridge is provided with weld seam, owing to there being the existence of convex ridge, is difficult for sliding during coiling, wire winding layer is regular, good filtration effect, projection itself plays reinforcement, can make the intensity of metal body increase, guaranteed that it has enough rigidity, adapted to especially High Pressure Difference and filter environment.

While manufacturing filter core, first several filter openings of punching press on metal body, during welding, first the thin plate both sides of the edge that cut into strip are extruded to flanging, then thin plate is rolled twist, make the flanging formation convex ridge that aligns with the flanging of next spiral, and weld at the top of convex ridge, make sheet metal be welded into tubular, cutting off, coiling forms filter core, first close rear thin from inside to outside during coiling, form many gaps, control that filtering layer is wound around density and filter opening shape and the filter core that forms different filtering accuracies, outside filter element filtering aperture, imperial palace is little, form in-depth filtration structure, close cellular structure in similar outer dredging, to reach at many levels, filter step by step, expand filter area, owing to there being the existence of convex ridge, good filtration effect.

Filter core of the present utility model, filtering traffic is large, the pressure loss is little, good filtration effect, water environment capacity are strong, can bear higher filtration pressure difference simultaneously, according to the heterogeneity of filter medium, can select different materials, make filter core and filter medium have good compatibility, the speck effectively suspending in filtering liquid and gas or particulate etc., organic solvent and the various iundustrial oils of electroplate liquid processing, petrochemical industry, pharmaceuticals industry, hydraulic oil and lubricated wet goods that this oil strainer is widely used in food_beverage industry, electronics industry filter.

Should be understood that; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing from the scope situation that the utility model claim protects; can also make the various deformation such as replacement, simple combination, the scope of asking for protection of the present utility model should be as the criterion with claims.

Claims

1. an oil strainer, comprise housing, filter core, hollow shaft, Connection Block and base, wherein, described Connection Block is fixed on base, on described base, be provided with in-line and fuel-displaced pipeline, a upper cover is stamped on described housing top, described Connection Block and upper cover are threaded connection, described filter core is placed in housing, described housing center is welded with a hollow shaft along filter core axial direction, described upper cover center is provided with through hole, it is characterized in that: bottom and the housing of described hollow shaft are connected, the top of described hollow shaft is provided with filter screen, top is inserted in described upper cover and is fitted tightly, described shape of through holes, the end shape of size and hollow shaft, size matches, described filter core comprises cylindrical metal body and bleaching cotton thread layer, described bleaching cotton thread layer is that the periphery that is wrapped in metal body by bleaching cotton thread forms, in described metal body circle wall, offer several filter openings and be spiralling convex ridge, the height of described convex ridge is 0.4～0.6mm, and the top of described convex ridge is provided with weld seam.

2. a kind of oil strainer according to claim 1, is characterized in that: described bleaching cotton thread layer is close cellular structure in outer dredging.

3. a kind of oil strainer according to claim 2, is characterized in that: described metal body is rolled into by steel band or brass band.

4. a kind of oil strainer according to claim 3, is characterized in that: described filter opening is for circular or oval.

5. a kind of oil strainer according to claim 4, is characterized in that: the height of described convex ridge is 0.5mm.