Gearbox running-in oil filtering device

Abstract

The utility model discloses a gearbox running-in oil filtering device, which relates to the technical field of track equipment manufacturing and comprises a settling tank, a funnel is mounted at the top of the settling tank, and a first filtering device is arranged in the funnel; the interior of the settling tank is divided into a plurality of filtering cavities by a first partition plate which is vertically arranged; a first circulating opening is reserved between the first partition plate and the bottom of the settling tank; vertically arranged second partition plates are arranged in the filtering cavity, second circulating openings are reserved in the second partition plates and the top of the settling tank, and the heights of the second partition plates are sequentially reduced in the running-in oil flowing direction; and the second partition plate is provided with a second filtering device. According to the running-in oil filtering device, multiple filtering modes are matched, filtering is more thorough, the filtered running-in oil can be reused, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail equipment manufacturing, in particular to a gear box running-in oil filtering device. Background Art

[0002] During the advanced repair of the EMU gearbox, a gearbox running-in test is required. After the running-in test, the gearbox lubricating oil is discharged. Since each gearbox requires about 3L of lubricating oil, using new lubricating oil each time is costly and the lubricating oil is not fully utilized, resulting in waste. At the same time, the cost of hazardous waste treatment is high, which will cause certain pollution to the environment.

[0003] Several filtering devices have been disclosed in the prior art. For example, CN207478139U discloses a filter for lubricating oil white clay refining, comprising a chassis with an oil inlet formed on the top surface and an oil drain formed on the upper right side wall of the chassis. The interior of the chassis is divided by a middle partition into two upper-connected chambers, namely a primary filter chamber and a secondary filter chamber, with a primary multi-layer filter screen and a secondary multi-layer filter screen installed in the primary filter interval and the secondary filter interval, respectively. CN212017025U discloses a lubricating oil collection device, which divides a collection box into three chambers, namely a first collection chamber, a second collection chamber, and a third collection chamber. A filter screen is provided in the channel between the second partition and the bottom plate of the collection box, and an electric valve is provided on the oil pipeline between the collection box and the pump. Although the above schemes can filter the lubricating oil to a certain extent, the filtering method is relatively simple. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a gearbox running-in oil filtering device, which uses a multi-channel filtering method to filter more thoroughly, so that the filtered running-in oil can be reused, saving costs.

[0005] In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

[0006] The utility model provides a gearbox running-in oil filtering device, comprising a sedimentation box, a funnel installed on the top of the sedimentation box, and a first filtering device provided in the funnel; the sedimentation box is divided into a plurality of filter chambers by a vertically arranged first partition, and a first flow opening is left between the first partition and the bottom of the sedimentation box; a vertically arranged second partition is provided in the filter chamber, and a second flow opening is left between the second partition and the top of the sedimentation box, and the height of each second partition decreases successively along the flow direction of the running-in oil; the second partition is installed with a second filtering device.

[0007] As a further implementation, the first filtering device includes a first filter screen and a filter element. The filter element is installed at the interface between the funnel and the sedimentation tank, and the first filter screen is located on the upper side of the filter element.

[0008] As a further implementation, the outlet end of the funnel extends into the sedimentation tank to a set length.

[0009] As a further implementation, the first filter screen is horizontally installed in the funnel.

[0010] As a further implementation, the second filtering device includes a partition filter and a second filter screen. The partition filter is installed on the top of the second partition, and the second filter screen is installed obliquely on the running-in oil inflow side of the second partition.

[0011] As a further implementation, the included angle between the second filter screen and the second partition along the clockwise direction is an acute angle.

[0012] As a further implementation, the number of second filter screens in each filter cavity is the same or different.

[0013] As a further implementation, the number of second filter screens in the filter cavity communicated with the funnel is greater than that in the remaining filter cavities.

[0014] As a further implementation, the filter chamber at the end is provided with a discharge port, and a valve is provided on the discharge port.

[0015] As a further implementation, the discharge port is equipped with a filter element.

[0016] The beneficial effects of the above utility model are as follows:

[0017] This utility model incorporates a primary filter within the funnel, a secondary filter within the sedimentation tank, and a third filter at the discharge port. This multi-pass filtration method provides a more thorough filtration process, allowing the filtered running-in oil to be reused, thus saving costs. Furthermore, the primary and secondary filtration stages each include two filtration methods: a combination of a filter screen and filter element, or a filter screen and partition filter, further enhancing filtration effectiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The schematic examples and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0019] Figure 1 It is a schematic structural diagram of a filtering device according to one or more embodiments of the present invention.

[0020] Among them, 1. sedimentation box, 2. top cover, 3. funnel, 4. first filter screen, 5. filter element, 6. first partition, 7. second partition, 8. partition filter, 9. second filter screen, 10. filter chamber, 11. valve. DETAILED DESCRIPTION

[0021] Example 1:

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, this embodiment provides a gearbox running-in oil filtration device, comprising a settling tank 1 with a funnel 3 mounted on top. Lubricating oil after running-in (hereinafter referred to as running-in oil) is injected into the settling tank 1 through the funnel 3. Funnel 3 is mounted near one end of the settling tank 1, allowing the running-in oil entering the settling tank 1 to flow sequentially along the length of the settling tank 1, forming a multi-stage filtration process. Funnel 3 is provided with a first filter, which performs preliminary filtration on the running-in lubricating oil as it is poured into the settling tank 1.

[0024] The first filtration is achieved through a first filter device. In this embodiment, the first filter device includes a first filter screen 4 and a filter element 5. The filter element 5 is installed at the interface between the funnel 3 and the sedimentation tank 1. The first filter screen 4 is installed horizontally within the funnel 3 and above the filter element 5. After running-in, the lubricating oil is filtered sequentially through the first filter screen 4 and the filter element 5. One or more first filter screens 4 can be provided.

[0025] The outlet end of funnel 3 is inserted into sedimentation tank 1 for a certain length. This is to ensure a reliable connection between funnel 3 and sedimentation tank 1 to prevent leakage, and to guide the running-in oil so that it can flow smoothly into sedimentation tank 1. The length of the outlet end of funnel 3 is determined based on the actual amount of running-in oil to be filtered.

[0026] The shape of the sedimentation box 1 can be set arbitrarily. In order to facilitate the production, a rectangular parallelepiped structure can be adopted; Figure 1 As shown, the sedimentation tank 1 includes a tank body and a top cover 2 mounted on the top of the tank body. The top cover 2 and the tank body can be integrally formed or can be a separate structure. The tank body is divided into multiple filter chambers 10 by a first partition 6. The number of filter chambers 10 depends on the filtering requirements. In this embodiment, two first partitions 6 are used to divide the three filter chambers 10 for detailed description:

[0027] The first baffle 6 is positioned along the installation direction, with its top end connected to the top cover 2 and its bottom end a certain distance from the bottom surface of the box, forming a first flow port for the flow of running-in oil between the filter chambers 10. Two first baffles 6 are arranged in sequence along the horizontal direction (the direction of running-in oil flow), and the three filter chambers 10 formed can have equal or different volumes.

[0028] Each filter chamber 10 is fitted with a second baffle 7. This baffle 7 is also vertically arranged, with its bottom end connected to the bottom of the chamber and its top end providing a second flow opening to the top of the sedimentation tank 1. Because impurities in the running-in oil gradually decrease after multiple filtrations, the second baffles 7 are arranged so that their height gradually decreases from the end where the funnel 3 is mounted to the other end of the chamber, forming a gradient filtration structure. The second baffles 7 serve to block filtered impurities.

[0029] The second partition 7 is installed with a second filter device, and each second filter device constitutes a second filter for the running-in oil. The second filter device includes a partition filter 8 and a second filter screen 9. The partition filter 8 is installed at the top of the second partition 7, and the second filter screen 9 is located at the bottom of the partition filter 8 and is connected to the running-in oil inflow side of the second partition 7; the running-in oil enters the first-stage filter chamber from the funnel 3, is first filtered by the second filter screen 9, and then filtered by the partition filter 8 before flowing into the next-stage filter chamber 10. The partition filter 8 and the second filter screen 9 together form a further filtration for the running-in oil. Figure 1 As shown, the second filter devices on the three second partitions 7 form three-stage filtration in sequence, and each second filter device has two filtering modes, thereby being able to achieve thorough filtration of the running-in oil.

[0030] In order to achieve effective filtration of the running-in oil, the second filter screen 9 is installed at an angle, and the angle between it and the second partition plate 7 in the clockwise direction is an acute angle, such as 30°, 45°, etc., depending on the amount of impurities in the running-in oil. The number of second filter screens 9 in each filter chamber 10 is the same or different. Since the running-in oil only undergoes primary filtration when entering the first-stage filter chamber, the amount of impurities in the running-in oil is still relatively high. Therefore, multiple second filter screens are set in the first-stage filter chamber, and the number of second filter screens in the remaining filter chambers 10 can be reduced in sequence, or the remaining filter chambers 10 can use the same number of second filter screens. Figure 1 As shown, two second filter screens are provided in the first-stage filter cavity, and one second filter screen is provided in each of the second-stage filter cavity and the third-stage filter cavity.

[0031] The filter chamber 10 at the end is equipped with a drain port, through which the filtered running-in oil is discharged. To facilitate the discharge of the running-in oil, the drain port is located near the bottom of the housing. A valve 11 is installed at the drain port; opening valve 11 allows the filtered running-in oil to be discharged. This embodiment also provides a third filter, at the outlet end. By installing a filter element 5 at the drain port for final filtration, the running-in oil can be filtered more thoroughly.

[0032] The working principle of this embodiment is:

[0033] The lubricating oil after running-in is poured into the funnel 3, enters the sedimentation box 1 through the first filter screen 4 and the filter element 5, and is allowed to settle on the inner side of the second partition 7 of the first-stage filter chamber. As the lubricating oil increases, the lubricating oil passes through the second filter screen 9 and the first partition filter element 5 and then enters the second-stage filter chamber from the first second flow port and the first flow port; it continues to be allowed to settle. As the lubricating oil further increases, the lubricating oil passes through the second filter screen 9 and the second partition filter 8 and then enters the third-stage filter chamber from the second second flow port and the first flow port, and is allowed to settle. When the lubricating oil continues to increase, the lubricating oil passes through the second filter screen 9 and the third partition filter 8 and exceeds the position of the valve 11; open the valve 11, and the filtered running-in oil flows out from the discharge port through the filter element 5 and continues to be used.

[0034] This embodiment uses a multi-pass filtration method to enable the filtered running-in oil to be reused, saving costs.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A gearbox running-in oil filtering device, characterized in that: It includes a sedimentation box, a funnel is installed on the top of the sedimentation box, and a first filtering device is provided in the funnel; the sedimentation box is divided into multiple filtering chambers by a vertically arranged first partition, and a first flow opening is left between the first partition and the bottom of the sedimentation box; a vertically arranged second partition is provided in the filter chamber, and a second flow opening is left between the second partition and the top of the sedimentation box, and the height of each second partition decreases successively along the flow direction of the running-in oil; the second partition is installed with a second filtering device.

2. The gearbox running-in oil filtering device according to claim 1, characterized in that: The first filtering device includes a first filter screen and a filter core. The filter core is installed at the interface between the funnel and the sedimentation box. The first filter screen is located on the upper side of the filter core.

3. A gearbox running-in oil filtering device according to claim 1 or 2, characterized in that: The outlet end of the funnel extends into the sedimentation box to a set length.

4. The gearbox running-in oil filtering device according to claim 2, characterized in that: The first filter screen is horizontally installed in the funnel.

5. The gearbox running-in oil filtering device according to claim 1, characterized in that: The second filtering device includes a partition filter and a second filter screen. The partition filter is installed on the top of the second partition, and the second filter screen is installed obliquely on the running-in oil inflow side of the second partition.

6. The gearbox running-in oil filtering device according to claim 5, characterized in that: The included angle between the second filter screen and the second partition along the clockwise direction is an acute angle.

7. A gearbox running-in oil filtering device according to claim 5 or 6, characterized in that: The number of second filter screens in each filter cavity is the same or different.

8. The gearbox running-in oil filtering device according to claim 7, characterized in that: The number of the second filter screens in the filter cavity communicated with the funnel is greater than that in the other filter cavities.

9. The gearbox running-in oil filtering device according to claim 1, characterized in that: The filter chamber at the end is provided with a discharge port, and the discharge port is provided with a valve.

10. The gearbox running-in oil filtering device according to claim 9, characterized in that: The discharge port is equipped with a filter element.

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