Oil return pipe

Abstract

The utility model provides an oil return pipe, and relates to the technical field of oil return pipes, the oil return pipe comprises an oil return pipe body, one end of the oil return pipe body is connected with a filter box, one side, away from the oil return pipe body, of the filter box is connected with an oil inlet hopper, the top of the filter box is provided with a cleaning port, and the cleaning port is provided with a box cover in a matched manner; when the oil return device is used, one end, far away from the filter tank, of the oil return pipe is connected with the oil return tank, and lubricating oil or hydraulic oil enters the filter tank from the oil inlet hopper when returning to the oil tank through the oil return pipe, is filtered by the filter component in the filter tank and then enters the oil return pipe; impurities in lubricating oil or hydraulic oil are filtered through the filtering assembly, the situation that the impurities are gathered, precipitated and attached to the inner wall of the oil return pipe to block the oil return pipe is avoided, normal backflow of the lubricating oil or hydraulic oil is guaranteed, and equipment failures or damage are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of oil return pipes, and in particular to an oil return pipe. Background Art

[0002] In the cement industry, return oil pipes are often used in lubrication systems or hydraulic systems of cement production equipment. Specifically, the function of the return oil pipe is to return the used lubricating oil or hydraulic oil to the tank for recycling or recovery. In the cement production process, many equipment require lubricating oil or hydraulic oil to reduce friction, reduce wear and ensure normal operation. For example, bearings, gears, hydraulic cylinders and other components of crushers, mills, conveyor belts, fans and other equipment all require lubrication or hydraulic support. In these systems, lubricating oil or hydraulic oil is supplied to the parts that need lubrication or hydraulic pressure through the oil supply pipe, and then returned to the tank through the return oil pipe. In addition, the return oil pipe can also be used to collect and process the leaked lubricating oil or hydraulic oil of the equipment to reduce pollution to the environment and waste of resources.

[0003] However, when lubricating oil or hydraulic oil is supplied to the parts of the equipment that require lubrication or hydraulics through the oil supply pipe and then returns to the oil tank through the oil return pipe, the lubricating oil or hydraulic oil often carries some dust, particles or other impurities into the oil return pipe. These impurities gather, precipitate and adhere to the inner wall of the oil return pipe. As time accumulates, the oil return pipe becomes clogged, affecting the normal return of the lubricating oil or hydraulic oil and causing equipment failure or damage. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide an oil return pipe, which can solve the technical problems raised by the background technology.

[0005] An embodiment of the present application provides an oil return pipe, characterized in that: it includes an oil return pipe body, one end of the oil return pipe body is connected to a filter box, the filter box is connected to an oil inlet hopper on a side away from the oil return pipe body, a cleaning port is provided on the top of the filter box, the cleaning port is matched with a box cover, a filter assembly is provided in the filter box, the filter assembly includes a bent baffle and a filter net, one end of the bent baffle is fixedly connected to the box cover, the other end of the bent baffle is abutted against a side wall where the oil inlet hopper is located, a through opening is provided on the bent baffle, the filter net is fixedly arranged at the through opening, and the filter net is located below the oil inlet hopper.

[0006] Furthermore, a handle is fixedly provided on the top of the box cover.

[0007] Furthermore, a transparent observation window is provided on the box cover, and the transparent observation window is located directly above the filter screen.

[0008] Furthermore, a valve is installed at the oil inlet hopper.

[0009] Furthermore, the bending baffle is an L-shaped plate.

[0010] Furthermore, the vertical distance between the filter screen and the oil inlet hopper is 2 to 4 cm.

[0011] Beneficial effects of the utility model:

[0012] The utility model provides an oil return pipe body with one end connected to a filter box, a side of the filter box away from the oil return pipe body is connected to an oil inlet hopper, a top of the filter box is provided with a cleaning port, a box cover matched with the cleaning port is placed at the cleaning port, a filter assembly is provided in the filter box, when in use, the end of the oil return pipe body away from the filter box is connected to the oil return box, when the lubricating oil or hydraulic oil returns to the oil return tank through the oil return pipe, it first enters the filter box from the oil inlet hopper, is filtered by the filter assembly in the filter box, and then enters the oil return pipe body, impurities in the lubricating oil or hydraulic oil are filtered by the filter assembly, and the impurities are prevented from gathering, precipitating, and adhering to the inner wall of the oil return pipe body to cause blockage of the oil return pipe, thereby ensuring the normal reflux of the lubricating oil or hydraulic oil and avoiding equipment failure or damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the structure of some embodiments of the present application;

[0015] Figure 2 It is a cross-sectional view of some embodiments of the present application;

[0016] Figure 3 This is a schematic diagram of the structure of the filter assembly and the box cover in some embodiments of the present application;

[0017] The reference numerals are:

[0018] 1. Oil return pipe body; 2. Filter box; 21. Oil inlet hopper; 22. Cleaning port; 3. Box cover; 31. Observation window; 4. Filter assembly; 41. Bending baffle; 411. Through port; 42. Filter screen; 5. Handle; 6. Valve. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0022] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0023] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Specific embodiment:

[0026] The present application provides an oil return pipe, comprising an oil return pipe body 1, one end of the oil return pipe body 1 is connected to a filter box 2, a side of the filter box 2 away from the oil return pipe body 1 is connected to an oil inlet hopper 21, a top of the filter box 2 is provided with a cleaning port 22, the cleaning port 22 is matched with a box cover 3, a filter assembly 4 is provided in the filter box 2, when in use, the end of the oil return pipe body 1 away from the filter box 2 is connected to the oil return tank, when the lubricating oil or hydraulic oil returns to the oil return tank through the oil return pipe body 1, it first enters the filter box 2 from the oil inlet hopper 21, is filtered by the filter assembly 4 in the filter box 2, and then enters the oil return pipe body 1, the impurities in the lubricating oil or hydraulic oil are filtered by the filter assembly 4, so as to prevent the impurities from accumulating, precipitating and adhering to the inner wall of the oil return pipe body 1, causing the oil return pipe body 1 to be damaged. Blockage ensures the normal backflow of lubricating oil or hydraulic oil and avoids equipment failure or damage. The filter assembly 4 includes a bent baffle 41 and a filter screen 42. One end of the bent baffle 41 is fixedly connected to the box cover 3, and the other end of the bent baffle 41 abuts against a side wall where the oil inlet hopper 21 is located. The bent baffle 41 is provided with a through opening 411, and the filter screen 42 is fixedly arranged at the through opening 411. The filter screen 42 is located below the oil inlet hopper 21. When the lubricating oil or hydraulic oil enters the filter box 2, it is filtered through the filter screen 42 on the bent baffle 41 and then enters the return oil pipe body 1. Impurities in the lubricating oil or hydraulic oil are filtered at the top of the filter screen 42 and gathered at the top of the filter screen 42. The box cover 3 is lifted regularly to facilitate the removal of the filter assembly 4 and the cleaning of the filter screen 42.

[0027] A handle 5 is fixedly provided on the top of the box cover 3, which makes it easy for the user to lift the box cover 3. Since one end of the bent baffle 41 is fixedly connected to the box cover 3, when the box cover 3 is lifted, the bent baffle 41 is lifted, and the filter screen 42 on the bent baffle 41 is lifted together, making it easy to take the filter screen 42 out of the filter box 2 for cleaning.

[0028] A transparent observation window 31 is provided on the box cover 3. The transparent observation window 31 is located directly above the filter screen 42. The filtered impurities on the filter screen 42 can be observed through the observation window 31. The user can choose whether to lift the box cover 3 according to actual conditions.

[0029] A valve 6 is installed at the oil inlet hopper 21. When cleaning impurities on the filter screen 42, the valve 6 is closed to prevent lubricating oil or hydraulic oil from entering the filter box 2. Then the box cover 3 is lifted by the handle 5, the filter assembly 4 is taken out and the filter screen 42 of the filter assembly 4 is cleaned.

[0030] The bent baffle 41 is an L-shaped plate, wherein the left side and the bottom of the bent baffle 41 form a channel with the filter box 2 , and the lubricating oil or hydraulic oil flows through the channel after being filtered by the filter screen 42 and then enters the oil return pipe body 1 .

[0031] The vertical distance between the filter 42 and the oil inlet hopper 21 is 2 to 4 cm, so that a certain amount of impurities can be temporarily stored on the filter 42. In this embodiment, the vertical distance between the filter 42 and the oil inlet hopper 21 is 3 cm, avoiding frequent cleaning of the filter 42.

[0032] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An oil return pipe, characterized in that: It includes an oil return pipe body, one end of the oil return pipe body is connected to a filter box, the side of the filter box away from the oil return pipe body is connected to an oil inlet hopper, the top of the filter box is provided with a cleaning port, the cleaning port is matched with a box cover, a filter assembly is provided in the filter box, the filter assembly includes a bent baffle and a filter screen, one end of the bent baffle is fixedly connected to the box cover, the other end of the bent baffle is abutted against a side wall where the oil inlet hopper is located, a through opening is provided on the bent baffle, the filter screen is fixedly arranged at the through opening, and the filter screen is located below the oil inlet hopper.

2. The oil return pipe according to claim 1, characterized in that: A handle is fixedly arranged on the top of the box cover.

3. The oil return pipe according to claim 1, characterized in that: The box cover is provided with a transparent observation window, and the transparent observation window is located directly above the filter screen.

4. The oil return pipe according to claim 1, characterized in that: A valve is installed at the oil inlet hopper.

5. The oil return pipe according to claim 1, characterized in that: The bending baffle is an L-shaped plate.

6. The oil return pipe according to claim 1, characterized in that: The vertical distance between the filter screen and the oil inlet hopper is 2 to 4 cm.

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