Oil circulation mechanism of gearbox running-in workbench

Abstract

The utility model relates to an oil circulation mechanism of a gearbox running-in workbench, which comprises a shell, a polluted oil tank, a transition oil tank and a clean oil tank are sequentially arranged in the shell from right to left, and one side of the polluted oil tank and one side of the transition oil tank are connected with a dirty oil filtering assembly; and the running-in stations are symmetrically arranged on the two sides of the shell, two sets of running-in stations are arranged on each side, and each set of running-in stations comprises an operation panel, a circulating oil port connected with the gearbox and a circulating filtering assembly used for filtering oil liquid. The utility model relates to the technical field of gearbox running-in workbenches. According to the oil circulating mechanism of the gearbox running-in workbench, through the arrangement of the dirty oil filtering assembly and the circulating filtering assembly, dirty oil in a gearbox can be filtered in the gearbox running-in period, the oil is synchronously filtered in the gearbox running-in working period, the shutdown oil changing time is saved, the service life of the oil is prolonged, and the working efficiency is improved. The abrasion of equipment parts is reduced, the non-planned downtime of the equipment is shortened, and the oil pollution treatment cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of a gearbox running-in workbench, in particular to an oil circulation mechanism of a gearbox running-in workbench. Background Art

[0002] The gearbox is an important component in the automobile production process. Before installation and use, the gearbox needs to go through a running-in process, which is to gradually reduce the tiny unevenness between the friction surfaces to achieve optimal performance and life. The gearbox running-in process usually needs to be simulated and tested before actual use.

[0003] In the prior art, during the gearbox running-in test, the uneven surface of the gearbox will fall off due to friction, resulting in a large amount of particulate contaminants mixed in the oil in the gearbox. The contaminated oil cannot be reused, resulting in the oil having to be replaced during the running-in experiment, thereby increasing the running-in cost of the gearbox. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide an oil circulation mechanism for a gearbox running-in workbench, so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] An oil circulation mechanism for a gearbox running-in workbench comprises a shell, inside which a contaminated oil tank, a transition oil tank and a clean oil tank are arranged in sequence from right to left, wherein one side of the contaminated oil tank and the transition oil tank is connected to a dirty oil filter assembly; a running-in station, which is symmetrically arranged on both sides of the shell, with two groups arranged on each side, each group comprising an operation panel, a circulating oil port connected to the gearbox and a circulating filter assembly for filtering oil; a high-pressure oil supply mechanism, which consists of an accumulator, a pipeline filter and high-pressure oil ports having the same number as the circulating oil ports, wherein the accumulator is fixedly arranged at the bottom of the shell, the pipeline filter is connected to the output end of the accumulator, the output end of the pipeline filter is provided with a plurality of branch pipes, and the output end of each branch pipe is connected to the high-pressure oil port.

[0007] Furthermore, the dirty oil filtering assembly includes a dirty oil strong magnetic filter, a high-speed centrifuge and a return oil fine filter. The dirty oil strong magnetic filter and the high-speed centrifuge are arranged on one side of the contaminated oil tank and are connected to the contaminated oil tank. The return oil fine filter is arranged on one side of the dirty oil strong magnetic filter and is connected to the contaminated oil tank and the transition oil tank.

[0008] Furthermore, the circulating oil port includes an oil outlet and an oil suction port connected to the gearbox.

[0009] Furthermore, the circulating filter assembly includes a circulating coarse filter, a circulating strong magnetic filter and a circulating fine filter. The circulating fine filter is arranged at the input end of the circulating oil port. A circulating strong magnetic filter is connected to one side of the circulating fine filter. The circulating strong magnetic filter is connected to the clean oil tank through the circulating coarse filter.

[0010] Furthermore, the tops of the contaminated oil tank, the transition oil tank and the clean oil tank are all provided with oil filling ports.

[0011] Furthermore, an oil replenishing port is fixedly connected to the outer side wall of the shell, and the oil replenishing port is communicated with the clean oil tank.

[0012] In summary, the present invention includes at least one of the following beneficial technical effects:

[0013] 1. The oil circulation mechanism of the gearbox running-in workbench can filter the dirty oil in the gearbox during the gearbox running-in period through the dirty oil filter component and the circulating filter component. The oil is filtered synchronously during the gearbox running-in period, which saves the time of stopping for oil change, extends the service life of the oil, reduces the wear of equipment parts, reduces the unplanned downtime of equipment, and reduces the cost of oil pollution treatment;

[0014] 2. The oil circulation mechanism of the gearbox running-in workbench can clean the gearbox after the gearbox running-in is completed through the high-pressure oil supply mechanism, thereby reducing the residual particulate pollutants in the gearbox and further improving the quality of the gearbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 The utility model is a schematic structural diagram of an oil circulation mechanism of a gearbox running-in workbench.

[0017] Figure 2 The utility model is a front view of the internal structure of an oil circulation mechanism of a gearbox running-in workbench.

[0018] Figure 3 It is a rear view of the internal structure of an oil circulation mechanism of a gearbox running-in workbench of the utility model.

[0019] In the figure, 1. shell; 2. running-in station; 21. operation panel; 22. circulating oil port; 221. oil outlet; 222. oil suction port; 23. circulating filter assembly; 231. circulating coarse filter; 232. circulating strong magnetic filter; 233. circulating fine filter; 3. high-pressure oil supply mechanism; 31. accumulator; 32. pipeline filter; 33. high-pressure oil port; 4. contaminated oil tank; 5. transition oil tank; 6. clean oil tank; 7. dirty oil filter assembly; 71. dirty oil strong magnetic filter; 72. high-speed centrifuge; 73. return oil fine filter; 8. refueling port; 9. oil replenishment port. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Example:

[0022] Reference Figure 1 - Figure 3 The utility model discloses an oil circulation mechanism of a gearbox running-in workbench, comprising a housing 1, inside which a contaminated oil tank 4, a transition oil tank 5 and a clean oil tank 6 are sequentially arranged from right to left, wherein one side of the contaminated oil tank 4 and the transition oil tank 5 is connected to a contaminated oil filter assembly 7;

[0023] The running-in station 2 is symmetrically arranged on both sides of the housing 1, with two groups arranged on each side, each group including an operation panel 21, a circulating oil port 22 connected to the gearbox, and a circulating filter assembly 23 for filtering oil;

[0024] The high-pressure oil supply mechanism 3 is composed of an accumulator 31, a pipeline filter 32 and high-pressure oil ports 33, the number of which is the same as the circulating oil ports 22, wherein the accumulator 31 is fixedly arranged at the bottom of the housing 1, the pipeline filter 32 is connected to the output end of the accumulator 31, and a plurality of branch pipes are arranged at the output end of the pipeline filter 32, and the output end of each branch pipe is connected to the high-pressure oil port 33.

[0025] In this embodiment, oil is injected into the clean oil tank 6, and the oil stops when it reaches the upper liquid level. Then, the gearbox is connected to the circulating oil port 22 of the housing 1, and then the start button of the operation panel 21 is pressed. The gearbox circulation filter component 23 automatically draws a quantitative amount of oil from the clean oil tank 6 and injects it into the gearbox of each station. The gearbox undergoes a running-in test, and the system filters the oil in the gearbox according to the set time.

[0026] When the oil in the gearbox is circulated and filtered, the oil suction port 222 sucks out the oil in the gearbox, and then the oil is filtered through the circulating coarse filter 231, the circulating strong magnetic filter 232 and the circulating fine filter 233 in sequence through the oil pump. The filtered oil will enter the gearbox again for use. After the set filtering time is reached, the oil in the gearbox will be pumped into the contaminated oil tank 4.

[0027] After the gearbox running-in is completed, the gearbox needs to be flushed, and then the oil in the clean oil tank 6 is pumped into the accumulator 31 through the oil pump. After the oil passes through the accumulator 31 to increase the pressure, it enters the gearbox through the high-pressure oil port 33. The flushed oil will be output through the oil suction port 222 and enter the contaminated oil tank 4 for circulation and filtration. Before the oil enters the accumulator 31, it will first enter the pipeline filter 32 to ensure that the oil is clean. At the same time, a pressure sensor is also set on one side of the accumulator 31, which can be used to detect the pressure in the accumulator 31. When the pressure is lower than the set lower limit, the oil is added to the accumulator 31 through the oil pump, and the pressure stops when the upper limit is reached. In this way, the system pressure is stabilized by the cycle to avoid large pressure fluctuations that affect the operation of the test system.

[0028] Finally, the oil entering the contaminated oil tank 4 is circulated and filtered through the contaminated oil strong magnetic filter 71 and the high-speed centrifuge 72 to achieve a rapid purification effect. After the oil in the contaminated oil tank 4 is filtered, the oil is input into the transition oil tank 5 through the oil pump. Then the oil in the transition oil tank 5 is circulated and filtered through the return oil fine filter 73. At the same time, the cleanliness of the oil is detected by the particle counter. After the particle counter detects that the pollutant concentration meets the set value, the oil in the transition oil tank 5 is input into the clean oil tank 6, so that the contaminated oil can be reused, thereby reducing the running-in cost of the gearbox.

[0029] In a further preferred embodiment of the present invention, Figure 2 As shown, the dirty oil filtering assembly 7 includes a dirty oil strong magnetic filter 71, a high-speed centrifuge 72 and a return oil fine filter 73. The dirty oil strong magnetic filter 71 and the high-speed centrifuge 72 are arranged on one side of the dirty oil tank 4 and are connected to the dirty oil tank 4. The return oil fine filter 73 is arranged on one side of the dirty oil strong magnetic filter 71 and is connected to the dirty oil tank 4 and the transition oil tank 5.

[0030] In this embodiment, because the oil entering the contaminated oil tank 4 contains a lot of pollutants, directly activating a high-precision filter will result in low oil filtration efficiency and easy clogging of the filter, increasing the frequency of filter replacement. Therefore, a contaminated oil strong magnetic filter 71 is provided on one side of the contaminated oil tank 4, which can be used to adsorb large ferromagnetic particles in the oil, and then separate a large amount of non-metallic pollutants in the oil through a high-speed centrifuge 72, which can be used to quickly filter the oil. After the initial filtration, the pollutants in the oil are significantly reduced, and then the oil can be further filtered using a high-precision return oil fine filter 73 to further improve the purification effect of the oil.

[0031] In a further preferred embodiment of the present invention, Figure 2As shown, the circulating oil port 22 includes an oil outlet 221 and an oil suction port 222 connected to the gearbox.

[0032] In this embodiment, the oil outlet 221 and the oil suction port 222 are provided to circulate the oil in the gearbox, so that the oil inside the gearbox can be filtered during the running-in period, thereby improving the running-in efficiency of the gearbox.

[0033] In a further preferred embodiment of the present invention, Figure 2 As shown, the circulating filter assembly 23 includes a circulating coarse filter 231, a circulating strong magnetic filter 232 and a circulating fine filter 233. The circulating fine filter 233 is arranged at the input end of the circulating oil port 22. A circulating strong magnetic filter 232 is connected to one side of the circulating fine filter 233. The circulating strong magnetic filter 232 is connected to the clean oil tank 6 through the circulating coarse filter 231.

[0034] In this embodiment, a large amount of large particle pollutants will be generated during the running-in period of the gearbox. These particles mixed in the oil will affect the running-in of the gearbox. Therefore, it is necessary to replace new oil regularly. However, frequent replacement of the oil will reduce the running-in efficiency of the gearbox. Therefore, a circulating coarse filter 231, a circulating strong magnetic filter 232 and a circulating fine filter 233 are set. During the running-in period of the gearbox, the oil can be transported to the circulating coarse filter 231 through the oil suction port 222 to intercept large particles, and then the ferromagnetic particles in the oil are adsorbed by the circulating strong magnetic filter 232. Finally, the oil is finely filtered by the circulating fine filter 233 and then input into the variable box to complete the circulation, which can greatly reduce the particle pollutants in the variable box during the running-in period of the gearbox.

[0035] In a further preferred embodiment of the present invention, Figure 1 As shown, the tops of the contaminated oil tank 4 , the transition oil tank 5 and the clean oil tank 6 are all provided with oil filling ports 8 .

[0036] In this embodiment, by providing refueling ports 8 on the contaminated oil tank 4, the transition oil tank 5 and the clean oil tank 6, the oil in the oil tanks can be adjusted individually to avoid overflow due to excessive oil or insufficient oil affecting the gearbox running-in.

[0037] In a further preferred embodiment of the present invention, Figure 3 As shown, an oil replenishing port 9 is fixedly connected to the outer wall of the housing 1 , and the oil replenishing port 9 is communicated with the clean oil tank 6 .

[0038] In this embodiment, by providing the oil replenishing port 9, the oil pump can be used to replenish oil when the contaminated oil tank 4, the transition oil tank 5 and the clean oil tank 6 are all at low liquid levels, so as to ensure the operating stability of the oil circulation mechanism.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An oil circulation mechanism for a gearbox running-in workbench, characterized in that: It comprises a housing (1), inside which a contaminated oil tank (4), a transition oil tank (5) and a clean oil tank (6) are arranged in sequence from right to left, wherein one side of the contaminated oil tank (4) and the transition oil tank (5) is connected to a contaminated oil filter assembly (7); A running-in station (2) is symmetrically arranged on both sides of the housing (1), with two groups arranged on each side, each group comprising an operation panel (21), a circulating oil port (22) connected to the gearbox, and a circulating filter assembly (23) for filtering oil; A high-pressure oil supply mechanism (3) is composed of an accumulator (31), a pipeline filter (32) and high-pressure oil ports (33) having the same number as the circulating oil ports (22), wherein the accumulator (31) is fixedly arranged at the bottom of the housing (1), the pipeline filter (32) is connected to the output end of the accumulator (31), and the output end of the pipeline filter (32) is provided with a plurality of branch pipes, and the output end of each branch pipe is connected to the high-pressure oil port (33).

2. The oil circulation mechanism of the gearbox running-in workbench according to claim 1, characterized in that: The dirty oil filter assembly (7) comprises a dirty oil strong magnetic filter (71), a high-speed centrifuge (72) and a return oil fine filter (73); the dirty oil strong magnetic filter (71) and the high-speed centrifuge (72) are arranged on one side of the dirty oil tank (4) and are in communication with the dirty oil tank (4); the return oil fine filter (73) is arranged on one side of the dirty oil strong magnetic filter (71) and is in communication with the dirty oil tank (4) and the transition oil tank (5).

3. The oil circulation mechanism of the gearbox running-in workbench according to claim 1, characterized in that: The circulating oil port (22) comprises an oil outlet (221) and an oil suction port (222) connected to the gearbox.

4. The oil circulation mechanism of the gearbox running-in workbench according to claim 1, characterized in that: The circulating filter assembly (23) comprises a circulating coarse filter (231), a circulating strong magnetic filter (232) and a circulating fine filter (233); the circulating fine filter (233) is arranged at the input end of the circulating oil port (22); one side of the circulating fine filter (233) is connected to the circulating strong magnetic filter (232); the circulating strong magnetic filter (232) is connected to the clean oil tank (6) via the circulating coarse filter (231).

5. The oil circulation mechanism of the gearbox running-in workbench according to claim 1, characterized in that: The tops of the contaminated oil tank (4), the transition oil tank (5) and the clean oil tank (6) are all provided with oil filling ports (8).

6. The oil circulation mechanism of the gearbox running-in workbench according to claim 1, characterized in that: An oil replenishing port (9) is fixedly connected to the outer side wall of the housing (1), and the oil replenishing port (9) is in communication with the clean oil tank (6).

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