CN201144805Y

CN201144805Y - Filter suitable for oiling machine gear pump

Info

Publication number: CN201144805Y
Application number: CNU2008200688238U
Authority: CN
Inventors: 秦祯祥; 李蛟; 蔡徽; 侯钦远
Original assignee: ZHENGZHOU WINDBELL ELECTRIC CO Ltd
Current assignee: ZHENGZHOU WINDBELL ELECTRIC CO Ltd
Priority date: 2008-01-04
Filing date: 2008-01-04
Publication date: 2008-11-05
Anticipated expiration: 2018-01-04

Abstract

The utility model relates to a filter of a gear pump of an oil adding machine. The filter comprises a tee-joint filter body (3), a filter screen (2) that is arranged in the main cavity of the filter body (3), an end shield (1) that is enveloped in the upper end of the main cavity of the filter body, and a filling valve (4) that is arranged on the filter body. The filter is characterized in that the filling valve (4) is arranged in the position of the oil port that is arranged on one side of the filter body (3); the communicating end of the filter screen (2) and the oil inlet is provided with a sewage storage tank (5). Compared with the prior art, the filter not only effectively prevents the filling valve from being clamped, prevents the oil filling channel from being blocked, but also facilitates the cleaning of the filter screen.

Description

Be applicable to the filter of oilling machine gear pump

Technical field

A kind of gear pump that is used for fuel charger of the utility model relates to a kind of filter that is applicable to the oilling machine gear pump specifically.

Background technique

The structure of filter that is applicable to the oilling machine gear pump of the prior art as shown in Figure 1, mainly by the filter body 3 of Three way type structure, the oiling valve 4 that is arranged on filter screen 2 in the filter body 3 main chambeies, is encapsulated in the end cap 1 of upper end, filter body master chamber and is installed in filler opening place, lower end, filter body master chamber forms.Because filter is installed in the filler opening part of gear pump, during gear pump work, whole filter is in negative pressure state.Under the effect of negative pressure, fuel oil is pushed oiling valve 4 open from the filler opening of filter and is entered filter, after filtering through filter screen 2, enters gear pump through oil outlet, reaches the purpose of filtration; When gear pump quit work, negative pressure disappeared, and oiling valve cuts out, and prevents that the fuel oil in the oil pump from flowing back in the oil tank.

In the prior art and since filler opening below, the mouth down of filter screen 2, in gear pump when work,, booty can be attracted to the internal surface of filter screen 2 because of the negative pressure of pump; When gear pump quit work, the negative pressure of gear pump disappeared, and booty can fall down because losing adsorption force, is collected at the top of oiling valve 4.Because the inner chamber of filter body 3 is deep, mouth is smaller, and this part booty can't be cleared up, and in the course of time, oiling valve 4 is stuck easily, and in-line is plugged easily, makes the flow of gear pump reduce and cisco unity malfunction.

When needs cleaning filter screen 2, oiling valve 4 cuts out, because the pasta in the gear pump is higher than the upper-end surface of filter body 3, so when opening the end cap 1 of filter, the fuel oil of gear pump inside can flow out from the top of filter body 3 through the oil outlet of filter.The outflow of fuel oil not only can bring loss economically, causes unnecessary waste, the more important thing is and has brought great potential safety hazard, and environment is also had certain pollution.

Summary of the invention

The purpose of this utility model provides a kind of at existing deficiency in the above-mentioned prior art just and not only can effectively avoid oiling valve to be stuck, the in-line generation of phenomenon that is blocked, and can be the filter that is applicable to the oilling machine gear pump that the cleaning of filter screen facilitates.

The purpose of this utility model can realize by following technique measures:

The filter that is applicable to the oilling machine gear pump of the present utility model comprise the Three way type structure filter body, be arranged on filter screen in the filter body master chamber, be encapsulated in the end cap of upper end, filter body master chamber and be installed in oiling valve on the filter body, wherein said oiling valve is installed in the side oil outlet place of filter body, is provided with sewage groove in the filter screen go side that links to each other with filler opening.

Filter of the present utility model is compared its main distinction with the filter of prior art and is: the oiling valve of filter is placed on the oil outlet of filter, has designed sewage groove in the filter screen.During gear pump work, fuel oil enters filter under the effect of negative pressure, behind the net filtration, push oiling valve open after filtration, enters gear pump.

The beneficial effects of the utility model are as follows:

1, in filter of the present utility model, because of oiling valve after filter screen, fuel oil could pass through oiling valve behind the net filtration after filtration, the fuel oil that flows through oiling valve all compares totally, oiling valve can be not stuck because of booty, and the unidirectional of oiling valve obtained reinforcement by reliability.

2, since the utility model in the filter screen indoor design sewage groove, in gear pump when work,, booty is attracted on the filter screen inwall because of negative pressure, when gear pump quit work, booty fell in sewage groove because of the absorption that loses negative pressure, can not fall into pipeline.During cleaning, take out filter screen, booty is poured out from the sewage groove of filter screen got final product.

3, because the oiling valve in the utility model is arranged on filter oil outlet place, during the cleaning filter screen, oiling valve cuts out, and fuel oil in the pump and the fuel oil in the filter are separated.When opening the end cap of filter, the fuel oil in the pump can not overflow from the top of filter body because of refluence, has eliminated potential safety hazard, has protected environment.

Description of drawings

Fig. 1 is prior art constructions figure.

Fig. 2 is a structural drawing of the present utility model.

Embodiment

The utility model is further described below with reference to embodiment's (accompanying drawing):

As shown in Figure 2, the filter that is applicable to the oilling machine gear pump of the present utility model comprise the Three way type structure filter body 3, be arranged on filter screen 2 in the filter body 3 main chambeies, be encapsulated in the end cap 1 of upper end, filter body master chamber and be installed in oiling valve 4 on the filter body, wherein said oiling valve 4 is installed in side oil outlet 7 places of filter body 3, is provided with sewage groove 5 in filter screen 2 go side that links to each other with filler opening 6.

Claims

1, a kind of filter that is applicable to the oilling machine gear pump, comprise the Three way type structure filter body (3), be arranged on filter screen (2) in the main chamber of filter body (3), be encapsulated in the end cap (1) of upper end, filter body master chamber and be installed in oiling valve (4) on the filter body, it is characterized in that: described oiling valve (4) is installed in the side oil outlet place of filter body (3), is provided with sewage groove (5) in filter screen (2) go side that links to each other with filler opening.