Automobile transmission oil filling and extracting base

Abstract

The utility model provides an oil filling and extracting base for an automobile transmission, and aims to solve the problems that in the prior art, an oil filling and extracting base for an automobile transmission cannot extract all transmission oil in an oil drum and the transmission oil left in the oil drum is recovered, so that economic loss of automobile manufacturers is caused, and the like. An extraction base of a cylindrical structure is adopted, and internal threads are arranged on the inner wall of the upper portion of the cylindrical extraction base. The extraction base is characterized in that the bottom of the extraction base of the cylindrical structure is of an open structure, namely, the bottom of the extraction base is a through hole with the diameter the same as that of the inner wall of a cylinder; a plurality of bosses are arranged at the lower end of the cylinder wall of the cylindrical extraction base; the width of the boss does not exceed 10 mm, and the height of the boss does not exceed 5 mm. The oil filling and extracting base for the automobile gearbox has the advantages that oil in an oil barrel of the gearbox can be extracted as much as possible, the content of the gearbox oil left in the barrel is less than 0.3%, and economic losses of automobile manufacturers are reduced.

Description

Technical Field

[0001] The utility model relates to an automobile transmission oil filling technology, in particular to an automobile transmission oil filling and extraction base. Background Art

[0002] At present, after the car is assembled and before the new car leaves the factory, it is necessary to add transmission oil to the new car's transmission. The existing method of filling automobile transmission oil adopts a vacuum oil pump, that is, the oil extraction pipe is placed at the bottom of the oil barrel, the vacuum oil pump is turned on to extract the transmission oil, and the transmission oil is added to the transmission of the new car to be shipped out of the factory. In order to prevent the debris in the oil barrel from being added to the automobile transmission, an extraction base is installed at the bottom of the oil extraction pipe for extraction. The extraction base is similar to a cylindrical filter screen, that is, a plurality of through holes are evenly arranged on the bottom and the wall of the closed cylinder, and an internal thread is arranged on the upper inner wall of the closed cylinder; wherein, the distance between the through holes in the top circle and the bottom is about 25 mm (see attached Figure 1 During refilling, the extraction base is screwed onto the connector at the end of the extraction tube. The extraction tube is placed at the bottom of the oil drum, ensuring the bottom of the extraction base rests on the bottom of the drum. The vacuum pump is then activated to extract the transmission fluid and add it to the transmission of the new vehicle to be shipped. When the oil level in the drum drops to the topmost ring of holes, air enters through these holes, preventing the vacuum pump from extracting any more transmission fluid from the drum, leaving residual fluid. It is estimated that approximately 25 mm of transmission fluid from the bottom of the drum remains unextracted. For a typical drum size, this represents approximately 3% of the entire drum, or approximately 6 liters of transmission fluid, which is then returned to the supply chain when the drum is recycled. Clearly, this 6 liters of residual transmission fluid represents a significant loss for the automaker. For a large vehicle production volume, this can add up to a significant annual loss for the manufacturer.

[0003] Obviously, the existing automobile transmission oil filling and extraction base has the problem that the transmission oil in the oil barrel cannot be completely extracted, and the transmission oil left in the oil barrel is recycled, causing economic losses to the automobile manufacturer. Summary of the Invention

[0004] In order to solve the problems of the existing automobile transmission oil filling and extraction base, such as the inability to extract all the transmission oil in the oil barrel, the transmission oil left in the oil barrel is recycled, and the economic losses of the automobile manufacturer, the utility model proposes an automobile transmission oil filling and extraction base.

[0005] The utility model discloses an automobile transmission oil filling and extraction base, which adopts a cylindrical structure extraction base, and an internal thread is provided on the upper inner wall of the cylindrical extraction base; it is characterized in that the bottom of the cylindrical structure extraction base is an open structure, that is, the bottom of the extraction base is a through hole with the same diameter as the inner wall of the cylinder; and a plurality of bosses are provided at the lower end of the cylinder wall of the cylindrical extraction base; the width of the bosses does not exceed 10 mm, and the height does not exceed 5 mm.

[0006] Preferably, a filter screen having an area the same as that of the outer circle of the cylindrical wall is welded on the boss at the lower end of the cylindrical extraction base.

[0007] The beneficial technical effect of the automobile transmission oil filling and extraction base of the utility model is that the oil in the transmission oil barrel can be extracted as much as possible, and the transmission oil remaining in the barrel is less than 0.3%, thereby reducing the economic losses of automobile manufacturers. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Attachment Figure 1 A three-dimensional schematic diagram of a prior art automobile transmission oil filling and extraction base;

[0009] Attachment Figure 2 This is a three-dimensional schematic diagram of the automobile transmission oil filling and extraction base of the utility model;

[0010] Attachment Figure 3 This is a three-dimensional schematic diagram of another embodiment of the automobile transmission oil filling and extraction base of the present invention.

[0011] The following is a further description of the automobile transmission oil filling and extraction base of the present invention in conjunction with the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0012] See attached Figure 2The utility model of the automobile transmission oil filling and extraction base adopts a cylindrical structure extraction base, and an internal thread is provided on the upper inner wall of the cylindrical extraction base; it is characterized in that the bottom of the cylindrical structure extraction base is an open structure, that is, the bottom of the extraction base is a through hole with the same diameter as the inner wall of the cylinder; and a plurality of bosses are provided at the lower end of the cylinder wall of the cylindrical extraction base; the width of the bosses does not exceed 10mm, and the height does not exceed 5mm. When filling, the utility model extraction base is screwed onto the connector at the end of the oil extraction pipe, the oil extraction pipe is placed on the bottom of the oil barrel, and it is ensured that the bottom of the extraction base is placed on the bottom of the oil barrel; the vacuum pump is turned on to extract the transmission oil and fill it into the transmission of the new car to be shipped. The oil inlet of the pumping base of the present invention is actually formed by a notch at the bottom end of the pumping base wall (i.e., the notch between the bosses) and the bottom surface of the barrel. Therefore, the oil in the barrel can be pumped to a position where the oil level is lower than the height of the notch at the bottom end of the pumping base wall. The height of the notch at the bottom end of the pumping base wall is less than 5 mm, and the transmission oil remaining in the barrel is also small, less than 0.3% of the entire barrel oil. Compared with the existing pumping base, this is reduced by 10 times, effectively reducing the economic losses of automobile manufacturers. Because the pumping base of the present invention uses the notch at the bottom end of the barrel wall to form the oil inlet, the area of ​​the oil inlet fully meets the requirements of the vacuum oil pumping unit and does not affect the filling speed.

[0013] See attached Figure 3 As one of the preferred technical solutions, a filter with an area equal to the outer circumference of the cylindrical wall is welded to a boss at the lower end of the cylindrical extraction base. This filter prevents debris from the transmission oil drum from entering the vacuum pump or vehicle transmission, potentially impacting vehicle production or operation.

[0014] Obviously, the beneficial technical effect of the automobile transmission oil filling and extraction base of the utility model is that the oil in the transmission oil barrel can be extracted as much as possible, and the transmission oil remaining in the barrel is less than 0.3%, thereby reducing the economic losses of automobile manufacturers.

Claims

1. An automobile transmission oil filling and extraction base, which adopts a cylindrical structure extraction base, and an internal thread is provided on the upper inner wall of the cylindrical extraction base; characterized in that: The bottom of the cylindrical extraction base is an open structure, that is, the bottom of the extraction base is a through hole with the same diameter as the inner wall of the cylinder; and a plurality of bosses are provided at the lower end of the cylinder wall of the cylindrical extraction base; the width of the bosses does not exceed 10 mm and the height does not exceed 5 mm.

2. The automobile transmission oil filling and extraction base according to claim 1, characterized in that: A filter screen with the same area as the outer circle of the cylinder wall is welded on the boss at the lower end of the cylinder wall of the cylindrical extraction base.

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