Thin oil lubrication circulating pump station

By introducing multi-layer filtration and magnetic adsorption devices into the thin oil lubrication circulation pump station, the problem of impurities clogging the oil was solved, achieving efficient oil filtration and automatic cleaning, and improving the operational reliability and service life of the equipment.

CN223807011UActive Publication Date: 2026-01-16HANGZHOU NANFANG ZHONGRUN MASCH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520759322.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-01-16
Estimated Expiration
2035-04-21

AI Technical Summary

Technical Problem

Existing thin oil lubrication circulation pump stations are prone to overheating and wear of the pump head due to clogging of the oil suction filter screen by dirt in the oil. In addition, the filtration effect is poor, which cannot guarantee the cleanliness of the oil and affects the normal use of the equipment.

Method used

A thin oil lubrication circulation pump station was designed, which includes an oil tank, an oil suction filter, an oil suction pipe, a pump head, a return oil filter, and an oil tank baffle filter. It adopts a multi-layer filtration structure and a ring magnet device, combined with an electric contact pressure gauge to realize automatic shutdown and cleaning, ensuring oil cleanliness.

Benefits of technology

Through multi-layer filtration and magnetic adsorption, impurities in the oil are effectively removed, reducing pump head wear, improving equipment operation stability and efficiency, and lowering the failure rate.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223807011U_ABST
    Figure CN223807011U_ABST
Patent Text Reader

Abstract

The utility model discloses a thin oil lubrication circulating pump station, and belongs to a centralized lubrication system. The device comprises an oil tank, an oil suction filter screen, an oil suction pipe, a pump head, an oil return filter and an oil tank partition plate filter screen, an oil tank cover plate is arranged at the upper end of the oil tank, and an oil filling port and an oil outlet are formed in the oil tank cover plate; one end of the oil suction pipe is connected with the oil suction filter screen, and the other end penetrates through the oil tank cover plate and then is connected with the pump head. The motor operates to drive the pump head to rotate so as to convey oil in the oil tank out through the oil suction filter screen and the oil suction pipe, lubrication and heat dissipation are carried out on lubrication points through the distribution valve, then the oil flows back and passes through the oil return filter, and a group of annular magnet devices are arranged in the oil return filter, so that magnetic impurities which flow back can be adsorbed; and two partition plate filter screens are arranged in the oil tank to filter and precipitate the returned oil liquid, so that the oil liquid sucked from the oil suction port filter screen by the pump is ensured to be clean as much as possible.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model belongs to lubricating device field, especially centralized lubrication system, concretely relates to a thin oil lubrication circulating station. BACKGROUND

[0002] The thin oil lubrication circulating pump station on the market all uses oil suction filter screen and oil suction pipe to pump head directly in this way, after long-term open cycle use, oil contains a large number of dirt, easy to block the oil suction filter screen, lead to pump head because of the lack of oil heating wear and tear, make the whole pump station cannot be used normally, need to stop machine after-sales maintenance, and the filtering effect of the existing thin oil lubrication circulating pump station is poor, cannot guarantee the oil clean.

[0003] Therefore, the existing thin oil lubrication circulating pump station needs to be improved. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of high-efficiency thin oil lubrication circulating station suction detection devices.

[0005] To solve the above technical problems, the utility model provides a kind of thin oil lubrication circulating pump station, including oil tank, oil suction filter screen, oil suction pipe, pump head, oil return filter and oil tank baffle screen;

[0006] The oil tank upper end is provided with oil tank cover plate, and oil tank cover plate is opened with oil inlet and oil outlet;

[0007] The oil suction filter screen and the oil tank baffle screen are both installed in the oil tank inner chamber.

[0008] One end of the oil suction pipe is connected with the oil suction filter screen, and the other end passes through the oil outlet of the oil tank cover plate and is connected with the pump head.

[0009] The oil return filter is installed on the oil inlet of the oil tank cover plate.

[0010] The oil tank baffle screen is located between the oil suction filter screen and the oil return filter.

[0011] Preferably, the oil return filter includes an oil return interface, a ring-shaped magnet and a ring-shaped filter screen.

[0012] The oil return interface is installed on the oil inlet of the oil tank cover plate.

[0013] The ring-shaped filter screen is located in the oil tank inner chamber.

[0014] The ring-shaped magnet is located in the ring-shaped filter screen.

[0015] Preferably, the ring-shaped filter screen and the oil suction filter screen are respectively installed on the left and right sides of the oil tank inner chamber.

[0016] Preferably, the baffle filter screen comprises a first baffle filter screen and a second baffle filter screen.

[0017] The first baffle filter screen and the second baffle filter screen are sequentially arranged between the oil return filter and the oil suction filter screen.

[0018] Preferably, the first baffle filter screen and the second baffle filter screen are both located at a position close to the oil return filter in the inner cavity of the oil tank.

[0019] Preferably, the height of the first baffle filter screen is lower than the height of the second baffle filter screen.

[0020] A first oil return channel is arranged between the top of the first baffle filter screen and the top of the inner cavity of the oil tank.

[0021] A second oil return channel is arranged between the top of the second baffle filter screen and the top of the inner cavity of the oil tank.

[0022] Preferably, the filtering precision of the annular filter screen is 80u.

[0023] The filtering precision of the first baffle filter screen is 100u.

[0024] The filtering precision of the second baffle filter screen is 120u.

[0025] Preferably, a detachable cleaning cover is installed on the oil suction pipe through a loose joint.

[0026] Preferably, an electric contact pressure gauge is further included.

[0027] The electric contact pressure gauge is installed on the right side of the pump head.

[0028] The pump head is installed on the top of the oil tank.

[0029] Preferably, the length direction of the oil suction filter screen is towards the front and rear sides of the oil tank.

[0030] Compared with the prior art, the present utility model has the following beneficial effects:

[0031] The present utility model drives the pump head to rotate by the motor operation to deliver the oil liquid in the oil tank out through the oil suction filter screen and the oil suction pipe, lubricates and cools the lubrication points through the distribution valve, and then flows back through the oil return filter, wherein the oil return filter is internally provided with a set of annular magnet devices which can adsorb the magnetic impurities flowing back, and then flows into the oil tank, and the oil tank is internally provided with two baffle filter screens to filter and precipitate the oil liquid flowing back, so as to ensure that the oil liquid sucked by the pump from the oil suction filter screen is clean. BRIEF DESCRIPTION OF DRAWINGS

[0032] The specific implementation manners of the present utility model will be further described in combination with the drawings.

[0033] Figure 1 is a kind of internal structure schematic diagram of the thin oil lubrication circulating pump station of the utility model;

[0034] Figure 2 is a kind of three-dimensional structure schematic diagram of the thin oil lubrication circulating pump station of the utility model;

[0035] Figure 3 is a kind of side view structure schematic diagram of the thin oil lubrication circulating pump station of the utility model.

[0036] In the drawing:

[0037] 1-oil suction filter screen;2-oil suction pipe;3-pump head;4-electric contact pressure gauge;5-oil tank partition filter screen;51-first partition filter screen;52-second partition filter screen;6-oil return filter;61-oil return interface;62-ring magnet;63-ring filter screen;7-oil tank;71-oil filling port;72-oil outlet;73-oil tank cover plate;8-first sedimentation zone;9-second sedimentation zone;81-first oil return channel;82-second oil return channel;11-cleaning cover;12-movable joint. DETAILED DESCRIPTION

[0038] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without the specific details presented in this description. In other instances, well-known methods have not been described in detail in order to avoid unnecessarily obscuring the present application.

[0039] The terminology used in this description of one or more embodiments should not be interpreted in an overly restrictive manner. Rather, the terminology is used solely for the purpose of describing one or more particular embodiments. The terms "a" and "an" and "the" used in this description of one or more embodiments and in the claims that follow are to be construed to cover both the singular as well as the plural, unless otherwise indicated herein or clearly contradicted by context. It will be further understood that the terms "comprises" and "comprising," when used in this description of one or more embodiments, specify the presence of stated features, integers, steps, or components, but do not preclude the presence or addition of one or more other features, integers, steps, components, or groups thereof.

[0040] It will be understood that, although the terms first, second, etc. can be used herein to describe various information, these terms are not intended to denote a temporal or chronological order. Rather, these terms are used solely to distinguish one from another. For example, a first can be termed a second, and, similarly, a second can be termed a first, without departing from the scope of the present description. As used herein, the term "if' can be interpreted to mean "when" or "upon" or "in response to determining" taking into account the context in which the term is used.

[0041] The utility model discloses a further detailed description is made to the utility model below in combination with the drawings:

[0042] The utility model provides a kind of thin oil lubrication circulating pump station, including oil tank 7, oil suction filter screen 1, oil suction pipe 2, pump head 3, oil return filter 6 and oil tank baffle filter screen 5;

[0043] The oil tank 7 upper end is provided with oil tank cover plate 73, and oil tank cover plate 73 is provided with oil filler opening 71 and oil outlet 72;

[0044] The oil suction filter screen 1 and oil tank baffle filter screen 5 are both installed in the inner cavity of oil tank 7;

[0045] One end of the oil suction pipe 2 is connected with the oil suction filter screen 1, and the other end is connected with the pump head 3 after passing through the oil outlet 72 of the oil tank cover plate 73;

[0046] The oil return filter 6 is installed on the oil filler opening 71 of the oil tank cover plate 73;

[0047] The oil tank baffle filter screen 5 is located between the oil suction filter screen 1 and the oil return filter 6.

[0048] Preferably, the oil return filter 6 includes an oil return interface 61, an annular magnet 62, and an annular filter screen 63.

[0049] The oil return interface 61 is installed on the oil filler opening 71 of the oil tank cover plate 73.

[0050] The annular filter screen 63 is located in the inner cavity of the oil tank 7.

[0051] The annular magnet 62 is located in the annular filter screen 63.

[0052] Preferably, the annular filter screen 63 and the oil suction filter screen 1 are respectively installed on the left and right sides of the inner cavity of the oil tank 7.

[0053] Preferably, the baffle filter screen 5 includes a first baffle filter screen 51 and a second baffle filter screen 52.

[0054] The first baffle filter screen 51 and the second baffle filter screen 52 are sequentially arranged between the oil return filter 6 and the oil suction filter screen 1.

[0055] Preferably, the first baffle filter screen 51 and the second baffle filter screen 52 are both located on the side close to the oil return filter 6 in the inner cavity of the oil tank 7.

[0056] Preferably, the height of the first baffle filter screen 51 is lower than the height of the second baffle filter screen 52.

[0057] A first oil return channel 81 is arranged between the top of the first baffle filter screen 51 and the top of the inner cavity of the oil tank 7.

[0058] The second oil return channel 82 is arranged between the top of the second partition filter screen 52 and the top of the inner cavity of the oil tank 7.

[0059] Preferably, the filtering precision of the annular filter screen 63 is 80u;

[0060] The filtering precision of the first partition filter screen 51 is 100u;

[0061] The filtering precision of the second partition filter screen 52 is 120u.

[0062] Preferably, the detachable cleaning cover 11 is arranged on the oil suction pipe 2 through the loose joint 12.

[0063] Preferably, the electric contact pressure gauge 4 is further included;

[0064] The electric contact pressure gauge 4 is arranged on the right side of the pump head 3;

[0065] The pump head 3 is arranged on the top of the oil tank 7.

[0066] Preferably, the length direction of the oil suction filter screen 1 is towards the front and back sides of the oil tank 7.

[0067] In order to better illustrate the technical effect of the utility model, the following specific embodiment is provided to illustrate the above technical process:

[0068] Embodiment 1, a thin oil lubrication circulating pump station, comprising an oil suction filter screen 1, an oil suction pipe 2, an electric contact pressure gauge 4, a pump head 3, an oil return filter 6 and an oil tank partition filter screen 5, the pump station is suitable for 100#-150# mechanical gear oil and is an open type circulating use;

[0069] When the motor is started to drive the pump head 3 to rotate, the oil in the oil tank 7 is transported out through the oil suction filter screen 1 and the oil suction pipe 2, lubricates and cools the lubrication points through the distribution valve, and then flows back through the oil return filter 6 (the filtering precision is 80u), the oil return filter 6 is internally provided with a set of annular magnets 62, which can adsorb the impurities with magnetism flowing back, and then flows into the oil tank 7, the oil tank 7 is internally provided with two oil tank partition filter screens 5 (the oil tank partition filter screen 5 comprises a first partition filter screen 51 and a second partition filter screen 52, and the filtering precisions are 100u and 120u respectively), which filter and precipitate the oil flowing back in the first precipitation area 8 and the second precipitation area 9 (the first partition filter screen 51 and the right side wall of the oil tank 7 form the first precipitation area 8, and the second partition filter screen 52 and the first partition filter screen 51 form the second precipitation area 9), so as to ensure that the oil sucked by the pump head 3 from the oil suction filter screen 1 is clean.

[0070] Because of long-term open cycle use, the flying dust impurities in the oil liquid will be more and more, will be adsorbed on the surface of the oil suction filter screen 1, cause the effective area of filter screen to reduce, the oil suction is not sufficient to cause the pump head 3 to heat wear, therefore, the pump head 3 import place is designed an electric contact pressure gauge 4, set negative pressure value, reach this value after just signal to machine tool PLC stop processing cleaning oil suction filter screen 1.

[0071] The oil tank cover plate 73 and the oil suction pipe 2 contact place is equipped with clean cover 11 and live joint 12, when needing to clean oil suction filter screen 1, loosen live joint 12 and unscrew clean cover 11 screw can take out oil suction filter screen 1 and clean or replace, then again with oil suction filter screen 1 oil suction pipe 2 is put into oil tank 7, live joint 12 is docked and locks and clean cover 11 locks in oil tank 7 cover can, avoid pump head 3 wear, reduce pump station failure rate, improve work efficiency.

[0072] The above described, only for the specific implementation of the present application, but the protection scope of the present application is not limited to this, any change or replacement in the technical scope disclosed in the present application, should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A thin oil lubrication circulating pump station, characterized by: It comprises an oil tank (7), an oil suction filter screen (1), an oil suction pipe (2), a pump head (3), an oil return filter (6) and a baffle filter screen (5); The upper end of the oil tank (7) is provided with an oil tank cover plate (73), and the oil tank cover plate (73) is provided with an oil inlet (71) and an oil outlet (72); The oil suction filter screen (1) and the baffle filter screen (5) are both installed in the inner cavity of the oil tank (7); One end of the oil suction pipe (2) is connected with the oil suction filter screen (1), and the other end passes through the oil outlet (72) of the oil tank cover plate (73) and is connected with the pump head (3); The oil return filter (6) is installed on the oil inlet (71) of the oil tank cover plate (73); The baffle filter screen (5) is located between the oil suction filter screen (1) and the oil return filter (6).

2. The thin oil lubrication circulating pump station according to claim 1, wherein: The oil return filter (6) comprises an oil return interface (61), an annular magnet (62) and an annular filter screen (63); The oil return interface (61) is installed on the oil inlet (71) of the oil tank cover plate (73); The annular filter screen (63) is located in the inner cavity of the oil tank (7); The annular magnet (62) is located in the annular filter screen (63).

3. The thin oil lubrication circulating pump station according to claim 2, wherein: The annular filter screen (63) and the oil suction filter screen (1) are respectively installed on the left and right sides of the inner cavity of the oil tank (7).

4. The thin oil lubrication circulating pump station according to claim 3, wherein: The baffle filter screen (5) comprises a first baffle filter screen (51) and a second baffle filter screen (52); The first baffle filter screen (51) and the second baffle filter screen (52) are sequentially arranged between the oil return filter (6) and the oil suction filter screen (1).

5. The thin oil lubrication circulating pump station according to claim 4, wherein: The first baffle filter screen (51) and the second baffle filter screen (52) are both located in the inner cavity of the oil tank (7) and are close to the side of the oil return filter (6).

6. The thin oil lubrication circulating pump station according to claim 5, wherein: The height of the first baffle filter screen (51) is lower than the height of the second baffle filter screen (52); A first oil return channel (81) is arranged between the top of the first baffle filter screen (51) and the top of the inner cavity of the oil tank (7); A second oil return channel (82) is arranged between the top of the second baffle filter screen (52) and the top of the inner cavity of the oil tank (7).

7. The thin oil lubrication circulating pump station according to claim 6, wherein: The filtering precision of the annular filter screen (63) is 80u; The filtering precision of the first baffle filter screen (51) is 100u; The filtering precision of the second baffle filter screen (52) is 120u.

8. The thin oil lubrication circulating pump station according to claim 7, wherein: A detachable cleaning cover (11) is installed on the oil suction pipe (2) through a loose joint (12).

9. The oil lubrication circulating pump station according to claim 8, characterized in that, It also comprises an electric contact pressure gauge (4); The electric contact pressure gauge (4) is installed on the right side of the pump head (3); The pump head (3) is installed on the top of the oil tank (7).

10. The oil lubrication circulating pump station according to claim 9, characterized in that: The length direction of the oil suction filter screen (1) is towards the front and back sides of the oil tank (7).