Filter assembly of high-pressure oil pump

Abstract

The utility model discloses a filter assembly of a high-pressure oil pump, which comprises an outer protection structure, a sealing mechanism and a filter assembly, an oil inlet is formed in the top of one side of the outer protection structure, an overflow opening is formed below the oil inlet and formed in the outer protection structure, an oil outlet mechanism is installed at the bottom of the outer protection structure in a penetrating mode, a filter element is arranged in the outer protection structure, and the bottom of the filter element is matched with the top of the oil outlet mechanism. By means of the arrangement mode that the oil inlet and the oil outlet mechanism are matched, oil enters the inner cavity of the outer protection structure through the oil inlet and then is filtered through the filter element, oil filtering is achieved, and when the filter element needs to be disassembled and replaced, only the sealing mechanism needs to be disassembled from the top of the outer protection structure, and the sealing mechanism can be disassembled from the top of the outer protection structure. Therefore, the filter element of the filter can be detached from the inside of the outer protection structure from inside to outside, so that the filter element of the filter can be replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the field of filter assemblies, in particular to a filter assembly of a high-pressure oil pump. Background Art

[0002] The oil pump filter is a component installed on the oil pump inlet pipe. Its main function is to filter and clean the lubricating oil flowing through the oil pump. The oil pump filter can filter solid impurities in the lubricating oil, such as particles, iron filings, dirt and other impurities. These impurities may be caused by wear and tear or impurities mixed into the oil. If they are not filtered out in time, they will affect the normal operation of the equipment and the performance of the lubrication system.

[0003] The structure of the oil pump filter generally includes a shell, a partition, an oil inlet, an oil outlet and a filter element. During the filtration of the oil, the oil passes through the oil inlet and enters the interior of the filter element under the partition of the partition. Under the filtration of the filter element, the oil seeps outward and is discharged through the oil outlet to achieve filtration of the oil. However, in this filtration method, since the filter element is blocked by the partition, it is difficult to remove the filter element from the inside of the shell from the inside out, and it is also difficult to replace the filter element. After long-term use, a large amount of impurities will be deposited inside the filter element, affecting the filtration of the oil, resulting in poor filtration effect. Utility Model Content

[0004] The purpose of the utility model is to provide a filter assembly for a high-pressure oil pump to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a filter assembly for a high-pressure oil pump, comprising:

[0006] An outer protective structure, a sealing mechanism being installed on the top of the outer protective structure;

[0007] An oil inlet is installed at the top of one side of the outer protective structure, an overflow port is arranged below the oil inlet, the overflow port is installed on the outer protective structure, an oil outlet mechanism is inserted and installed at the bottom of the outer protective structure, a filter element is arranged inside the outer protective structure, and the bottom of the filter element cooperates with the top of the oil outlet mechanism.

[0008] Preferably, the outer protective structure comprises:

[0009] A protective shell, the protective shell being a cylindrical structure with upper and lower openings;

[0010] A connecting flange, which is fixedly mounted on the top of the protective shell and cooperates with the sealing mechanism;

[0011] The sealing head is fixedly mounted on the bottom of the protective shell and is used to seal the bottom opening of the protective shell.

[0012] Preferably, the sealing mechanism comprises:

[0013] A sealing cover, the sealing cover is in a disc shape, and the diameter of the sealing cover is the same as the diameter of the connecting flange;

[0014] The first sealing ring is fixedly connected to the lower surface of the sealing cover, an annular groove is provided on the top of the connecting flange, and the first sealing ring cooperates with the inner cavity of the annular groove.

[0015] Preferably, the sealing mechanism further comprises:

[0016] The signal transmitting hole is opened in the middle of the sealing cover.

[0017] A plurality of fasteners are arranged in a ring array, the fasteners are inserted and installed between the sealing cover and the connecting flange, and the fasteners are used to fix the relative positions of the sealing cover and the connecting flange.

[0018] Preferably, the oil outlet mechanism comprises:

[0019] An oil outlet pipe, the oil outlet pipe is inserted and installed at the bottom of the head, and the oil outlet pipe is arranged in an L shape;

[0020] An anti-slip ring is connected to the end of the oil outlet pipe, and the cross section of the anti-slip ring is in an inverted tooth shape.

[0021] Preferably, the oil outlet mechanism further comprises:

[0022] A limiting ring is fixedly sleeved on the top of the oil outlet pipe and is used for limiting the bearing of the filter element.

[0023] Preferably, a second sealing ring is sleeved on the inner side of the bottom of the filter element, and the inner wall of the second sealing ring and the top of the oil outlet pipe are sleeved on each other.

[0024] Technical effects and advantages of the utility model:

[0025] The utility model utilizes a setting mode in which an oil inlet and an oil outlet mechanism cooperate with each other. When filtering the oil, the oil enters the inner cavity of the outer protective structure through the oil inlet, and then flows out through the oil outlet mechanism after being filtered by the filter element, so as to achieve filtering of the oil. When it is necessary to disassemble and replace the filter element, it is only necessary to disassemble the sealing mechanism from the top of the outer protective structure, so that the filter element can be disassembled from the inside of the outer protective structure from the inside to the outside, so as to replace the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the front structure of the utility model.

[0027] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0028] Figure 3 It is a schematic diagram of the structure of the utility model from top view.

[0029] Figure 4 It is a schematic diagram of the structure of the utility model when viewed from above.

[0030] Figure 5 It is a schematic diagram of the internal structure of the oil outlet mechanism of the utility model.

[0031] In the figure: 1. External protective structure; 11. Protective shell; 12. Connecting flange; 13. Head; 2. Sealing mechanism; 21. Sealing cover; 22. First sealing ring; 23. Signal transmitting hole; 24. Fastener; 3. Oil inlet; 4. Overflow port; 5. Oil outlet mechanism; 51. Oil outlet pipe; 52. Anti-slip ring; 53. Limiting ring; 6. Filter element; 601. Second sealing ring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] The utility model provides Figure 1-5The filter assembly of a high-pressure oil pump shown in the figure comprises: an outer protective structure 1, a sealing mechanism 2 is installed on the top of the outer protective structure 1; an oil inlet 3 is installed on the top of one side of the outer protective structure 1, an overflow port 4 is arranged below the oil inlet 3, and the overflow port 4 is installed on the outer protective structure 1, an oil outlet mechanism 5 is inserted and installed at the bottom of the outer protective structure 1, and a filter element 6 is arranged inside the outer protective structure 1, and the bottom of the filter element 6 cooperates with the top of the oil outlet mechanism 5. When filtering the oil, the oil enters the outer protective structure through the oil inlet 3. 1, and then after being filtered by the filter element 6, it flows out through the oil outlet mechanism 5 to achieve oil filtration. When the filter element 6 needs to be disassembled and replaced, it is only necessary to disassemble the sealing mechanism 2 from the top of the outer protective structure 1, so that the filter element 6 can be disassembled from the inside of the outer protective structure 1 from the inside to the outside, so as to replace the filter element 6. The function of the overflow port 4 is to discharge the excess pressure oil through the overflow port 4 when the oil pump outlet pressure exceeds the set value, so as to prevent excessive pressure from damaging the oil pump or other system components. When the oil pump is working, if there is a blockage or obstruction in the system, the pressure generated by the oil pump may exceed the preset normal working pressure. At this time, the overflow port 4 will open and guide the excess pressure oil back to the oil tank or other diversion circuit to reduce the pressure of the system and protect the oil pump and other system components from damage.

[0034] Furthermore, the outer protective structure 1 includes: a protective shell 11, which is a cylindrical structure with upper and lower openings; a connecting flange 12, which is fixedly installed on the top of the protective shell 11, and cooperates with the sealing mechanism 2; a head 13, which is fixedly installed on the bottom of the protective shell 11, and the head 13 is used to seal the bottom opening of the protective shell 11. The protective shell 11 is convenient for temporary storage and filtration of oil, and the connecting flange 12 is convenient for cooperation with the sealing cover 21 to achieve docking installation with the sealing mechanism 2, and the head 13 is convenient for sealing the bottom of the protective shell 11. The protective shell 11 is cylindrical.

[0035] Furthermore, the sealing mechanism 2 includes: a sealing cover 21, which is disc-shaped, and the diameter of the sealing cover 21 is the same as the diameter of the connecting flange 12; a first sealing ring 22, which is fixedly connected to the lower surface of the sealing cover 21, and an annular groove is provided on the top of the connecting flange 12, and the first sealing ring 22 cooperates with the inner cavity of the annular groove. The sealing mechanism 2 also includes: a signaling hole 23, which is opened in the middle of the sealing cover 21, a fastener 24, and a plurality of fasteners 24 are arranged in a ring array, and the fasteners 24 are inserted and installed between the sealing cover 21 and the connecting flange 12, and the fasteners 24 are used to fix the relative position of the sealing cover 21 and the connecting flange 12, and the stacking cooperation between the sealing cover 21 and the connecting flange 12 facilitates the blocking of the top of the external protection structure 1, and the cooperation between the first sealing ring 22 and the annular groove on the connecting flange 12 facilitates the increase of the sealing between the connecting flange 12 and the sealing cover 21, and prevents the oil from leaking from the gap between the sealing cover 21 and the connecting flange 12. The function of the signaling hole 23 is to detect and transmit the pressure signal of the lubricating oil. The signaling hole 23 is connected to the pressure side of the oil pump. When the lubricating oil passes through the filter, a certain pressure will be formed in the signaling hole 23, and then this pressure signal can be transmitted to other systems or equipment through the signaling hole 23 to monitor the working state of the oil pump and whether the oil circuit pressure is normal. By monitoring the pressure signal of the signal transmitting hole 23 , the operation of the oil pump system can be monitored and controlled in real time and the normal operation of the lubrication system can be protected. The fastener 24 is used to facilitate the connection and fixing of the relative position between the connecting flange 12 and the sealing cover 21 .

[0036] Furthermore, the oil outlet mechanism 5 includes: an oil outlet pipe 51, which is inserted and installed at the bottom of the head 13, and the oil outlet pipe 51 is L-shaped; an anti-slip ring 52, which is connected to the end of the oil outlet pipe 51, and the cross-section of the anti-slip ring 52 is in the shape of an inverted tooth. The oil outlet mechanism 5 also includes: a limit ring 53, which is fixedly sleeved on the top of the oil outlet pipe 51. The limit ring 53 is used to limit the filter element 6. By inserting the bottom of the filter element 6 and the top of the oil outlet pipe 51, it is convenient to realize the plug-in installation of the filter element 6 to complete the assembly of the filter element 6. The limit ring 53 is convenient to limit the insertion position of the filter element 6 to prevent the filter element 6 from being inserted too much. The material of the second sealing ring 601 is rubber, which is convenient to seal the connection gap between the filter element 6 and the oil outlet pipe 51 to prevent a large amount of oil from leaking. The anti-slip ring 52 is convenient to be sleeved with the external pipe. The anti-slip ring 52 has an anti-slip function through the inverted tooth design, which prevents the anti-slip ring 52 from being separated from the external pipe at will. The inner side of the bottom of the filter element 6 is sleeved with the second sealing ring 601, and the inner wall of the second sealing ring 601 is sleeved with the top of the oil outlet pipe 51.

[0037] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filter assembly for a high-pressure oil pump, comprising: An outer protective structure (1), wherein a sealing mechanism (2) is installed on the top of the outer protective structure (1); The invention is characterized in that: an oil inlet (3) is installed at the top of one side of the outer protective structure (1), an overflow port (4) is arranged below the oil inlet (3), the overflow port (4) is installed on the outer protective structure (1), an oil outlet mechanism (5) is inserted and installed at the bottom of the outer protective structure (1), a filter element (6) is arranged inside the outer protective structure (1), and the bottom of the filter element (6) cooperates with the top of the oil outlet mechanism (5); the outer protective structure (1) comprises: A protective shell (11), wherein the protective shell (11) is a cylindrical structure with openings at the top and bottom; A connecting flange (12), wherein the connecting flange (12) is fixedly mounted on the top of the protective shell (11), and the connecting flange (12) cooperates with the sealing mechanism (2); A sealing head (13), the sealing head (13) is fixedly mounted on the bottom of the protective shell (11), and the sealing head (13) is used to seal the bottom opening of the protective shell (11); the sealing mechanism (2) comprises: A sealing cover (21), wherein the sealing cover (21) is in the shape of a disc, and the diameter of the sealing cover (21) is the same as the diameter of the connecting flange (12); A first sealing ring (22), wherein the first sealing ring (22) is fixedly connected to the lower surface of the sealing cover (21), an annular groove is provided on the top of the connecting flange (12), and the first sealing ring (22) cooperates with the inner cavity of the annular groove.

2. A filter assembly for a high-pressure oil pump according to claim 1, characterized in that: The sealing mechanism (2) further comprises: A signal transmitting hole (23), wherein the signal transmitting hole (23) is provided in the middle of the sealing cover (21), A fastener (24), wherein a plurality of the fasteners (24) are arranged in a ring array, the fasteners (24) are inserted and installed between the sealing cover (21) and the connecting flange (12), and the fasteners (24) are used to fix the relative position of the sealing cover (21) and the connecting flange (12).

3. The filter assembly of a high-pressure oil pump according to claim 1, characterized in that: The oil outlet mechanism (5) comprises: An oil outlet pipe (51), the oil outlet pipe (51) is inserted and installed at the bottom of the end cap (13), and the oil outlet pipe (51) is arranged in an L shape; An anti-slip ring (52) is connected to the end of the oil outlet pipe (51), and the cross section of the anti-slip ring (52) is in the shape of an inverted tooth.

4. A filter assembly for a high-pressure oil pump according to claim 3, characterized in that: The oil outlet mechanism (5) further comprises: A limiting ring (53) is fixedly sleeved on the top of the oil outlet pipe (51), and the limiting ring (53) is used to limit the bearing of the filter element (6).

5. The filter assembly of a high-pressure oil pump according to claim 1, characterized in that: A second sealing ring (601) is sleeved on the inner side of the bottom of the filter element (6), and the inner wall of the second sealing ring (601) and the top of the oil outlet pipe (51) are sleeved on each other.

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