CN218151808U

CN218151808U - External oil absorption oil filter

Info

Publication number: CN218151808U
Application number: CN202222783033.0U
Authority: CN
Inventors: 简福蓉; 王江涛; 刘海东; 欧云科; 杨廷彬; 魏虎; 闫宪良; 李长江; 胡代洪
Original assignee: Chongqing Pingshan Electromechanical Equipment Co ltd
Current assignee: Chongqing Pingshan Electromechanical Equipment Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2022-12-27
Anticipated expiration: 2032-10-21

Abstract

The utility model relates to an external oil absorption oil filter, which comprises a shell, wherein the shell is provided with an oil inlet and an oil outlet, a stop valve and a filter element are arranged in the shell, oil entering from the oil inlet flows out of the oil outlet after passing through the stop valve and the filter element in sequence, the shell is L-shaped, the vertical section of the shell is an oil inlet section, and the horizontal section of the shell is an oil outlet section; the oil inlet is located the oil feed section top, and the oil-out is located the one end that the oil feed section was kept away from to the oil section of producing oil, and the filter core is located the oil section of producing oil of casing, and the one end that the oil-out was kept away from to the oil section of producing oil is the filter core and takes out the end. The utility model discloses simple structure, convenient operation need not to dismantle the rig and can accomplish the filter core and wash or change, practices thrift the time of wasing or renew cartridge, improves rig work efficiency.

Description

External oil suction oil filter

Technical Field

The utility model relates to a hydraulic equipment oil absorption oil strain technical field especially relates to an external oil absorption oil filter.

Background

In a hydraulic system, in order to ensure the stable operation of the hydraulic system, an oil suction filter is arranged in the hydraulic system, and a filter element in the oil suction filter needs to be cleaned or replaced frequently.

In the mining industry, a coal mine underground drill rig takes a hydraulic system as power; however, the position of the coal mine tunnel is limited, so that the structure of the drilling machine is required to be compact, and the general drilling machine structure comprises a drilling machine operating platform, a hydraulic system and a drilling head structure which are arranged in sequence.

A hydraulic system in a drilling machine structure comprises an oil tank, a motor, an oil pump and an oil suction oil filter, wherein the external oil suction oil filter is generally arranged at the end part of the oil tank, an oil inlet of the oil suction oil filter is connected with the oil tank, and an oil outlet of the oil suction oil filter is connected with the oil pump; the taking-out end of the filter element and the oil inlet are positioned on the same straight line, and the filter element needs to be drawn out from one end of the oil absorption and oil filter, which is far away from the oil inlet.

In a coal mine underground drill rig, the oil absorption and oil filter taking-out end of a hydraulic system is close to a drill rig operating table, a gap between the drill rig operating table and the oil absorption and oil filter is not enough for dismounting and mounting a filter element, and the filter element can be taken out only by dismounting the drill rig when replacing the filter element, so that the drill rig is extremely inconvenient; the filter element replacement or cleaning consumes long time and has large workload, and the working efficiency of the drilling machine is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an oil absorption oil filter, colliery gallery rig is washing or the renew cartridge convenience, need not to dismantle the rig.

The utility model provides a technical scheme that its technical problem adopted is:

an external oil absorption oil filter comprises a shell, wherein an oil inlet and an oil outlet are formed in the shell, a stop valve and a filter element are arranged in the shell, oil entering from the oil inlet sequentially passes through the stop valve and the filter element and then flows out of the oil outlet, the shell is L-shaped, the vertical section of the shell is an oil inlet section, and the transverse section of the shell is an oil outlet section; the oil inlet is located at the top of the oil inlet section, the oil outlet is located at one end, far away from the oil inlet section, of the oil outlet section, the filter element is located in the oil outlet section of the shell, and the end, far away from the oil outlet, of the oil outlet section is a filter element taking-out end.

The utility model provides a theory of operation that its technical problem adopted is: the oil inlet and the taking-out end of the filter element are not on the same straight line, so that the extension line of the oil inlet of the oil absorption oil filter is perpendicular to the taking-out direction of the filter element, when the oil absorption oil filter is arranged at the end part of the oil tank, after the oil inlet of the oil absorption oil filter is connected with the oil tank, the taking-out end of the filter element is positioned at the side edge of the connecting line of the oil tank and the oil absorption oil filter, the filter element is taken out from the side edge, and the filter element can be cleaned or replaced without disassembling a drilling machine.

The utility model discloses a show the effect and do:

1. the filter element can be cleaned or replaced without disassembling the drilling machine;

2. simple structure, convenient operation practices thrift the time of wasing or changing the filter core, improves rig work efficiency.

Drawings

Fig. 1 is one of the schematic structural diagrams of the present invention;

FIG. 2 is a second schematic view of the present invention;

fig. 3 is a schematic structural diagram of the installation position of a hydraulic system in the drilling machine.

In the figure: the oil-feeding section 11, the oil-discharging section 12, the oil inlet 13, the oil outlet 14, the annular mounting plate 15, the oil tank 2, the motor 3, the oil pump 4, the filter element 5, the end cover 6, the coarse filter element 7, the steel ball 8, the spring 81, the ejector rod 82, the annular sealing element 83 and the drilling machine operating platform 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, an external oil suction filter comprises a housing, wherein an oil inlet 13 and an oil outlet 14 are arranged on the housing, a stop valve and a filter element 5 are arranged in the housing, oil entering from the oil inlet 13 sequentially passes through the stop valve and the filter element 5 and then flows out from the oil outlet 14, so that all oil entering from the oil inlet 13 flows out from the oil outlet 14 after being filtered by the filter element 5, and the purpose of filtering is achieved; the shell is L-shaped, the vertical section of the shell is an oil inlet section 11, and the horizontal section of the shell is an oil outlet section 12; the oil inlet 13 is positioned at the top of the oil inlet section 11, the oil outlet 14 is positioned at one end of the oil outlet section 12 far away from the oil inlet section 11, the filter element 5 is positioned in the oil outlet section 12 of the shell, and one end of the oil outlet section 12 far away from the oil outlet 14 is a filter element taking-out end; the stop valve is the on-off valve between oil inlet 13 and the filter core 5, and when the filter core 5 needs to be replaced or cleaned, the stop valve is closed, so that the oil in the oil inlet 13 can not continuously flow into the oil outlet section 12, and oil leakage is avoided.

The oil inlet 13 and the taking-out end of the filter element 5 are not on the same straight line, so that the extension line of the oil inlet 13 of the oil suction oil filter is perpendicular to the taking-out direction of the filter element 5, when the oil suction oil filter is arranged at the end part of the oil tank 2, after the oil inlet 13 of the oil suction oil filter is connected with the oil tank 2, the taking-out end of the filter element 5 is positioned at the side edge of the connecting line of the oil tank 2 and the oil suction oil filter, the filter element 5 is taken out from the side edge, and the filter element 5 can be cleaned or replaced without disassembling a drilling machine operating platform 9 of a drilling machine. When the filter is installed, an oil tank 2 and a motor 3 of a hydraulic system on a drilling machine are arranged side by side, an oil pump 4 is arranged at the front end of the motor 3 and arranged side by side with an oil suction oil filter, an oil outlet 14 in the oil suction oil filter is connected with the oil pump 4, and a taking-out end of a filter element 5 is positioned on one side far away from the oil pump 4 without interference, so that the filter element 5 can be taken out in a sufficient space. In addition, in the coal mine tunnel, in order to facilitate the operation of workers and the operation of a drilling machine, enough operation space is reserved in the coal mine tunnel, so that the filter element 5 has enough operation space after being taken out from the side edge.

Furthermore, an end cover 6 is arranged at the taking-out end of the filter element; the filter element 5 is tubular, one end of the filter element is hermetically connected with the end cover 6, the other end of the filter element is hermetically connected with the shell around the oil outlet 14, and a channel inside the filter element 5 is communicated with the oil outlet 14; therefore, when the filter element 5 is extracted, the filter element 5 can be extracted only by opening the end cover 6, the two ends of the filter element 5 are respectively connected with the end cover 6 and the shell in a sealing manner, unfiltered oil cannot flow into the channel of the filter element 5 from the two ends of the filter element 5, and the oil flowing in from the oil inlet 13 flows into the oil outlet section 12 of the shell and then flows out from the oil outlet 14 by immersing the filter element 5 into the filter element 5 from the periphery of the filter element 5. The arrangement enables the filter element 5 to have a large filter area and the service life of the filter element 5 to be longer. The tubular filter element 5 is of a multilayer structure, oil enters the internal channel of the filter element 5 layer by layer in the shell and then flows out of the oil outlet, the filter holes of each layer of the filter element 5 are different in size and are sequentially reduced from outside to inside, and the diameter range of the filter holes is 3-30 micrometers; therefore, the filter element 5 can filter more fully, each layer of filter element 5 filters impurities with different sizes, the filter elements are not easy to block, and the service life of the filter elements 5 is longer.

Furthermore, a coarse filter element 7 is arranged in the oil inlet section 11; the oil entering from the oil inlet 13 is prevented from having large foreign matters flowing into the oil outlet section 12.

Further, the stop valve comprises a spring 81, a steel ball 8, a push rod 82 and an annular sealing member 83; one end of the spring 81 is connected to the shell around the oil outlet 14, the other end of the spring is connected with the steel ball 8, the lower part of the steel ball 8 is provided with a push rod 82, and the push rod 82 is hermetically inserted from the outside of the shell and can move back and forth; the annular sealing member 83 is positioned in the shell at the lower part of the push rod 82 and is in sealing connection with the shell, the steel ball 8 and the annular sealing member 83 are matched to cut off oil flowing from the oil inlet 13 to the shell where the filter element 5 is positioned, and when the steel ball 8 and the annular sealing member 83 are matched, the push rod 82 is over against the steel ball 8. When the stop valve is opened, the push rod 82 is inserted into the shell to push against the steel ball 8, so that the steel ball 8 is completely positioned at the upper part of the push rod 82; when the stop valve needs to be closed, the push rod 82 is pulled outwards, the steel ball 8 moves into the annular sealing ring under the elastic force action of the spring 81 to be in close contact with the inner wall of the annular sealing ring, and the purpose of stopping flow is achieved. When the steel ball 8 is matched with the annular sealing element 83, most of the steel ball 8 is still positioned at the upper part of the annular sealing element 83; the position opposite to the push rod 82 is also positioned on the lower hemispherical part of the steel ball 8, so that the push rod 82 can push the steel ball 8 to reset more easily when the stop valve needs to be opened.

Specifically, coarse filter element 7 is the tube-shape, is equipped with an annular lid on the oil inlet 13, and the upper portion and the annular lid fixed connection of coarse filter element 7 are contactless with the casing all around, and when the stop valve was opened, steel ball 8 was located coarse filter element 7, and steel ball 8 blocks the large granule foreign matter with coarse filter element 7 together, and the gap between steel ball 8 and coarse filter element 7, the gap between coarse filter element 7 and the casing flows to in going out oil section 12.

Further, the stop valve sets up in the oil feed section 11 of casing, be provided with an annular mounting panel 15 on the 11 inner walls of oil feed section, annular mounting panel 15 fixed connection is on the 11 inner walls of oil feed section, and annular sealing member 83 sets up in the through-hole of annular mounting panel 15. This makes the installation of the annular seal 83 more stable and reliable, resulting in better sealing.

Further, the through-hole comprises tubaeform through-hole and straight tube-shape through-hole, tubaeform through-hole is located the one end that is close to steel ball 8, and the other end is straight tube-shape through-hole, annular seal 83 sets up the junction at tubaeform through-hole and straight tube-shape through-hole, and the tip and the straight tube-shape through-hole of tubaeform through-hole are connected. Therefore, the steel ball 8 can be supported, and the steel ball 8 cannot swing randomly when being contacted with the sealing ring.

The body of oil inlet 13 is barb joint or flange joint, and the accessory is common and connect conveniently.

The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only for the specific implementation method of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements and improvements made within the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An external oil absorption oil filter comprises a shell, wherein an oil inlet (13) and an oil outlet (14) are formed in the shell, a stop valve and a filter element (5) are arranged in the shell, oil entering from the oil inlet (13) sequentially passes through the stop valve and the filter element (5) and then flows out of the oil outlet (14), and the external oil absorption oil filter is characterized in that the shell is L-shaped, the vertical section of the shell is an oil inlet section (11), and the transverse section of the shell is an oil outlet section (12); the oil inlet (13) is located at the top of the oil inlet section (11), the oil outlet (14) is located at one end, far away from the oil inlet section (11), of the oil outlet section (12), the filter element (5) is located in the oil outlet section (12) of the shell, and the end, far away from the oil outlet (14), of the oil outlet section (12) is a filter element taking-out end.

2. The external oil suction filter according to claim 1, wherein the filter element removing end is provided with an end cap (6); and the filter element (5) is tubular, one end of the filter element is hermetically connected with the end cover (6), the other end of the filter element is hermetically connected with the shell around the oil outlet (14), and a channel inside the filter element (5) is communicated with the oil outlet (14).

3. The external oil suction filter according to claim 1 or 2, wherein a coarse filter element (7) is arranged in the oil inlet section (11).

4. The external oil suction filter according to claim 1 or 2, wherein the shutoff valve comprises a spring (81), a steel ball (8), a push rod (82) and an annular seal (83); one end of the spring (81) is connected to the shell around the oil outlet (14), and the other end of the spring is connected with the steel ball (8); the lower part of the steel ball (8) is provided with a push rod (82), and the push rod (82) is inserted from the outside of the shell in a sealing manner and can move back and forth; the annular sealing element (83) is positioned in the shell at the lower part of the ejector rod (82), and when the steel ball (8) and the annular sealing element (83) are matched for use, the ejector rod (82) is over against the steel ball (8).

5. The external oil suction filter according to claim 3, wherein the shutoff valve comprises a spring (81), a steel ball (8), a push rod (82) and an annular seal (83); one end of the spring (81) is connected to the shell around the oil outlet (14), the other end of the spring is connected with the steel ball (8), a push rod (82) is arranged at the lower part of the steel ball (8), and the push rod (82) is inserted from the outside of the shell in a sealing manner and can move back and forth; the annular sealing element (83) is positioned in the shell at the lower part of the ejector rod (82), and when the steel ball (8) and the annular sealing element (83) are matched for use, the ejector rod (82) is over against the steel ball (8).

6. The external oil suction filter according to claim 4, wherein the shutoff valve is disposed in an oil inlet section (11) of the housing, an annular mounting plate (15) is disposed on an inner wall of the oil inlet section (11), and an annular sealing member (83) is disposed in a through hole of the annular mounting plate (15).

7. The external oil suction filter according to claim 5, wherein the shutoff valve is disposed in an oil inlet section (11) of the housing, an annular mounting plate (15) is disposed on an inner wall of the oil inlet section (11), and an annular sealing member (83) is disposed in a through hole of the annular mounting plate (15).

8. The external oil suction filter according to claim 6 or 7, wherein the through hole is composed of a trumpet-shaped through hole and a straight cylindrical through hole, the trumpet-shaped through hole is positioned at one end close to the steel ball (8), the other end is the straight cylindrical through hole, the annular sealing member (83) is arranged at the joint of the trumpet-shaped through hole and the straight cylindrical through hole, and the small end of the trumpet-shaped through hole is connected with the straight cylindrical through hole.