CN210769099U

CN210769099U - High-pressure oil filtering device

Info

Publication number: CN210769099U
Application number: CN201921458020.8U
Authority: CN
Inventors: 刘导; 郑炜; 王飞翔; 张晓宁
Original assignee: Yuchai Marine Power Co ltd
Current assignee: Yuchai Marine Power Co ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-06-16
Anticipated expiration: 2029-09-02

Abstract

The utility model discloses a high pressure oil filter equipment, including connecting block and the sealed filtering mechanism who sets up in the connecting block, filtering mechanism includes the support and installs the filter in the support, the support includes filter body and mount pad, the inside oil outlet blind hole that is equipped with of filter body, form a filter chamber between filter body and the connecting block, be equipped with the connecting portion of indent between mount pad and the filter body, be equipped with the guide hole of intercommunication inlet port and filter chamber on the connecting portion, one side of mount pad orientation filter body is equipped with the conical shutoff face with the sealed butt of connecting block. Because the leakproofness of conical surface is better than planar leakproofness, the utility model discloses increased the sealed effect between filtering mechanism and the connecting block, cancelled the packing ring structure for filter equipment can continuously carry out the operation process.

Description

High-pressure oil filtering device

Technical Field

The utility model relates to an oil feeding technical field, especially a high pressure oil filter equipment.

Background

In a high pressure oil supply system of a gasoline engine or a diesel engine, a high pressure oil filtering device is required to filter high pressure oil to remove impurities in the high pressure oil. And among the current high pressure oil filter equipment, often can produce serious oil leak phenomenon, general solution reduces the emergence of oil leak phenomenon through increasing the gasket, though can solve the oil leak phenomenon temporarily, but when tightening torque is higher, because the inside oil pressure of filter equipment is too high, the gasket damages seriously for the life of gasket is very short, need carry out thorough dismouting and change the gasket with connecting block and filtering mechanism, and is very troublesome, does not utilize the continuous operation process of diesel engine.

At present, when the filtering mechanism is installed inside the connecting block, two contact surfaces between the filtering mechanism and the connecting block are planes, the two contact surfaces are sealed by the planes, and a diesel engine or other large-scale engines are in operation, because the pressure of a high-pressure oil pipe is very high, the plane sealing mode cannot bear the high pressure, the oil leakage fault is caused to occur frequently, and the performance of a host machine is seriously influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve one of the above technical problems, the utility model provides a more reliable high pressure oil filter equipment ensures the continuous operation of engines such as large-scale diesel engine, solves the oil leak phenomenon.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a high pressure oil filter equipment, includes connecting block and the sealed filtering mechanism who sets up in the connecting block, filtering mechanism includes the support and installs the filter in the support, the support includes filter body and mount pad, the internal portion of filter is equipped with the oil outlet blind hole, form a filter chamber between filter body and the connecting block, filter body surface is equipped with the filtration pore with oil outlet blind hole intercommunication, be equipped with the filter on the filtration pore, be equipped with the inlet port in the mount pad, be equipped with the connecting portion of indent between mount pad and the filter body, be equipped with the guide hole of intercommunication inlet port and filter chamber on the connecting portion, the mount pad is equipped with the conical shutoff face with the sealed butt of connecting block towards one side of filter body.

According to the above technical scheme, the utility model discloses improve the contact surface of filter mechanism and connecting block into the conical surface by the plane for it is sealed to change the conical surface into by the plane seal between filter mechanism and the connecting block, and the conical surface butt has good leakproofness when on the connecting block, contains the axial force along the conical surface direction between the contact surface, increases sealed effect, need not use the gasket also can solve the oil leak problem, makes large-scale engine can continuously function, the performance of greatly increased engine.

Preferably, a plurality of filter holes are arranged on the filter body, and the filter holes are arranged on the filter body in a staggered manner.

From top to bottom, filter simultaneously through setting up a plurality of filtration pores, increase filtration efficiency, improve the filter speed.

Preferably, be equipped with into oil chamber, with the oil outlet pipeline of oil inlet chamber intercommunication and set up the oil-out at oil outlet pipeline end on the connecting block, filtering mechanism sets up in the oil inlet chamber.

It is from top to bottom visible, reasonable design oil feed structure and the structure of producing oil, the filtering mechanism of being convenient for filters high pressure oil.

Preferably, the oil outlet pipeline is communicated with the oil inlet chamber through a connecting hole, and a maintenance valve capable of plugging the connecting hole is arranged in the connecting block.

It is thus clear that, when the inside oil leak phenomenon of filter equipment was serious, the service valve was used for plugging up the connecting hole, closed this filter equipment, avoided influencing other filter equipment's operation process.

Preferably, an oil collecting hole which is communicated with the oil outlet and the oil inlet chamber is arranged in the connecting block, and the oil collecting hole is isolated from the filter cavity through a plugging surface.

Therefore, the oil collecting hole is used for collecting high-pressure oil leaked from the filter cavity, and the problem that the leaked oil can go everywhere to damage internal parts inside the extrusion device is solved.

Preferably, the filtering mechanism is fixedly connected in the oil inlet chamber in a threaded connection mode.

Therefore, threaded connection has good leakproofness, and the screw thread can also produce the pretightning force simultaneously, with conical shutoff face butt on the connecting block, has certain extrusion force to the contact surface with the connecting block.

Preferably, the outer surface of the filter body is also provided with a flexible retainer ring for fixing the filter.

From the above, the circlip is used for fixing the filter on the filtration pore, prevents that the filtration pore from droing in the filtration pore when filtering.

Preferably, the connecting block is provided with a plurality of the guide holes in a circumferential direction.

Therefore, the guide holes are arranged for increasing the flow area of the oil inlet hole leading to the filter cavity, and the high-pressure oil quick-flow device is suitable for the high-pressure oil quick-flow process.

Preferably, a connecting port connected with the high-pressure oil pipe is further arranged in the mounting seat.

Therefore, the connecting port is used for fixedly mounting the high-pressure oil pipe, so that high-pressure oil in the high-pressure oil pipe enters the mounting seat.

Preferably, the support is further provided with an O-shaped ring.

From top to bottom, O type circle plays sealed effect, prevents that the oil liquid that leaks from leaking to the connecting block outside by the installation face of filter equipment and connecting block.

Drawings

The invention will be further described with reference to the following figures and examples:

FIG. 1 is an internal structural view of a preferred embodiment of the present invention with the plugging surface being a flat surface;

FIG. 2 is a cross-sectional view of a preferred embodiment of the connection block of the present invention;

FIG. 3 is a block diagram of the filter mechanism of a preferred embodiment of the present invention;

fig. 4 is an internal structure view of the plugging surface of the preferred embodiment of the present invention in a conical surface.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, a preferred embodiment is a high-pressure oil filtering device, which includes a connecting block 1 and a filtering mechanism 2, wherein the filtering mechanism 2 is hermetically installed in the connecting block 1, and the filtering mechanism 2 is used for filtering high-pressure oil. The filter mechanism 2 comprises a support and a filter 23, the support comprises a filter body 21 and a mounting seat 22, an oil outlet blind hole 211 is formed inside the filter body 21, the oil outlet blind hole 211 outputs filtered high-pressure oil, a filter cavity 3 is formed between the outer surfaces of the filter body 21 and the connecting block 1, a filter hole 212 communicated with the oil outlet blind hole 211 is formed in the outer surface of the filter body 21, the filter 23 is arranged on the filter hole 212, an oil inlet hole 221 is formed in the mounting seat 22, the high-pressure oil in the high-pressure oil pipe enters the filter mechanism 2 through the oil inlet hole 221, a concave connecting portion is formed between the filter mechanism 2 and the mounting seat 22, a guide hole 222 communicating the oil inlet hole 221 with the filter cavity 3 is formed in the connecting portion, and a conical blocking surface 5 in sealing and abutting connection with the connecting block 1 is arranged on one side. The high-pressure oil inlet hole 221 enters the mounting seat 22 and enters the filter cavity 3 through the guide hole 222 of the connecting part, the blocking surface 5 is used for preventing high-pressure oil from leaking out of the filter cavity 3, and the high-pressure oil enters the filter cavity 3, then enters the oil outlet blind hole 211 through the filter hole 212 after being filtered by impurities through the filter 23, and then is output from the oil outlet blind hole 211. The filter 23 is a high pressure oil filter element for removing impurities from the high pressure oil.

Furthermore, a plurality of filtering holes 212 are formed in the filtering body 21, two or more filtering holes 212 can be formed in the filtering body 21 as required besides one filtering hole 212, and the filtering holes 212 are arranged on the filtering body 21 in a staggered manner, so that mutual influence between the filtering holes 212 and the filtering holes 212 is avoided, and the filtering efficiency is improved.

Furthermore, an oil inlet chamber 11, an oil outlet pipeline 12 and an oil outlet 13 are arranged on the connecting block 1, the oil outlet 13 is arranged at the top of the connecting block 1, the oil outlet pipeline 12 is communicated with the oil inlet chamber 11 and the oil outlet 13, the filtering mechanism 2 is installed in the oil inlet chamber 11, the oil inlet chamber 11 is communicated with the oil outlet pipeline 12 through a connecting hole 14, and high-pressure oil enters from the oil inlet chamber 11, is filtered by a filter 23, then enters from the oil outlet pipeline 12, enters into the oil outlet 13 and is output.

Further, be equipped with the oil trap 15 of intercommunication oil-out 13 and grease inlet room 11 in the connecting block 1, oil trap 15 is isolated mutually with filter chamber 3 through shutoff face 5, and when the inside oil leak phenomenon that takes place of connecting block 1, mainly because the untight condition of 5 shutoff of shutoff face, oil trap 15 is used for collecting the high pressure fluid that spills, and fluid leads to the oil leak phenomenon more serious owing to not holding the department when avoiding the oil leak, directly leaks to the connecting block 1 outside.

Further, be equipped with service valve 4 in the connecting block 1, service valve 4 comprises mobilizable valve body, sets up in the bottom of oil outlet pipe 12, and when the inside oil leak phenomenon that takes place of connecting block 1, service valve 4 rebound and plug up connecting hole 14, when avoiding high-pressure oil to pass through this filter equipment, further takes place the oil leak phenomenon. When oil is observed to overflow to the oil outlet 13, the valve body moves upwards to block the connecting hole 14, and the filtering device stops working. And a high-pressure oil pipe for blocking the oil outlet 13 is arranged on the outer side of the oil outlet 13, a closed cavity is formed between the outer side of the high-pressure oil pipe and the oil outlet 13, and the closed cavity is communicated with the oil collecting hole 15.

Furthermore, the outer surface of the filter body 21 is also provided with an elastic retainer ring 24 for fixing the filter screen, the outer surface of the filter body 21 is provided with an annular groove which penetrates through the filter hole 212 and is used for installing the elastic retainer ring 24, and the elastic retainer ring 24 fixes the filter 23 in the filter hole 212 by utilizing elastic potential energy. In addition, the strainer 23 may be secured within the strainer hole 212 by a threaded connection or other suitable means.

Further, connecting block 1 is provided with a plurality of guide holes 222 along the circumferential direction, and guide hole 222 can set up 1 promptly, also can set up to two or more, equally can reach the utility model discloses high-pressure oil gets into the technological effect of filter chamber 3. In this embodiment, the number of the guide holes 222 is 4, and the guide holes are annularly arranged on the connecting portion at four positions, i.e., up and down, front and back, to increase the flow rate of the oil inlet 221 toward the filter cavity 3, so as to adapt to the flow rate of the high-pressure oil.

Furthermore, a connection port 223 connected with the high-pressure oil pipe is further arranged in the mounting seat 22, and the high-pressure oil pipe is matched with the connection port 223 in a threaded connection mode.

Further, an O-ring 25 is further disposed on the mounting seat 22, and the O-ring 25 is disposed on the outer surface of the mounting seat 22 for sealing the mounting seat 22.

During concrete implementation, mount pad 22 passes through threaded connection's mode and installs inside connecting block 1, is equipped with on the support towards the ascending extrusion force of the inside direction of connecting block 1, and conical shutoff face 5 seals the butt mutually with connecting block 1, produces the radial force along mount pad 22 between the extrusion face, and if outside promotion mount pad 22 during outwards moving, high-pressure oil will overcome the frictional force between connecting block 1 and the filter equipment at first, has consequently improved sealed effect. Because the leakproofness of conical surface is better than planar leakproofness, has increased the sealed effect between filtering mechanism 2 and connecting block 1, has cancelled the packing ring structure for filter equipment can continuously carry out the operation process.

The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments, and the technical effects of the present invention should be all included in the protection scope of the present invention as long as the technical effects are achieved by any of the same or similar means.

Claims

1. The high-pressure oil filtering device is characterized by comprising a connecting block (1) and a filtering mechanism (2) which is arranged in the connecting block (1) in a sealing manner, wherein the filtering mechanism (2) comprises a support and a filter (23) which is arranged in the support, the support comprises a filter body (21) and a mounting seat (22), an oil outlet blind hole (211) is formed inside the filter body (21), a filtering cavity (3) is formed between the filter body (21) and the connecting block (1), a filtering hole (212) communicated with the oil outlet blind hole (211) is formed in the outer surface of the filter body (21), the filter (23) is arranged on the filtering hole (212), an oil inlet hole (221) is formed in the mounting seat (22), a concave connecting part is formed between the mounting seat (22) and the filter body (21), and a guide hole (222) communicated with the oil inlet hole (221) and the filtering cavity (3) is formed in the connecting part, one side of the mounting seat (22) facing the filter body (21) is provided with a conical plugging surface (5) which is in sealing and abutting contact with the connecting block (1).

2. The high-pressure oil filtering device as claimed in claim 1, wherein a plurality of filtering holes (212) are formed in the filtering body (21), and the filtering holes (212) are arranged on the filtering body (21) in a staggered manner.

3. The high-pressure oil filtering device as claimed in claim 1, wherein an oil inlet chamber (11), an oil outlet pipeline (12) communicated with the oil inlet chamber (11) and an oil outlet (13) arranged at the tail end of the oil outlet pipeline (12) are arranged on the connecting block (1), and the filtering mechanism (2) is arranged in the oil inlet chamber (11).

4. The high-pressure oil filtering device as claimed in claim 3, wherein the oil outlet pipeline (12) is communicated with the oil inlet chamber (11) through a connecting hole (14), and a service valve (4) capable of blocking the connecting hole (14) is arranged in the connecting block (1).

5. A high pressure oil filter device according to claim 3, wherein an oil collecting hole (15) communicating the oil outlet (13) and the oil inlet chamber (11) is provided in the connecting block (1), and the oil collecting hole (15) is isolated from the filter chamber (3) by the plugging surface (5).

6. A high-pressure oil filter device according to claim 3, characterised in that the filter means (2) is secured in the oil inlet chamber (11) by means of a screw connection.

7. A high-pressure oil filter device according to claim 1, characterised in that the outer surface of the filter body (21) is provided with a circlip (24) for fixing the filter (23).

8. A high-pressure oil filtering device according to claim 1, characterized in that said connecting block (1) is provided with a number of said conducting holes (222) in the circumferential direction.

9. The high-pressure oil filtering device as claimed in claim 1, wherein a connecting port (223) connected with the high-pressure oil pipe is further formed in the mounting seat (22).

10. A high pressure oil filter device according to claim 1, wherein the mounting seat (22) is further provided with an O-ring (25).