Oil baffle plate of differential mechanism

Abstract

An oil baffle plate of a differential mechanism comprises a differential mechanism shell, a differential mechanism driven gear and a speed reducer shell, the differential mechanism driven gear is a bevel gear, the upper portion of the speed reducer shell is fixedly connected with the oil baffle plate, the oil baffle plate is located above the small end of the differential mechanism and on the left side of the differential mechanism driven gear, and the oil baffle plate is integrally formed. A mounting part and a flow guide part are arranged from top to bottom, a through hole is formed in the mounting part, the mounting part and the flow guide part are bent, the lower end of the flow guide part is bent inwards to form a folded edge, the mounting part, the flow guide part and the folded edge jointly form a flow guide groove for gear oil, and the left side of the flow guide groove is higher than the right side of the flow guide groove. A right opening of the diversion trench is larger than a left opening and is located above a lubricating window of the differential shell.

Description

Technical Field

[0001] The utility model belongs to the technical field of differentials, and particularly relates to an oil baffle of a differential. Background Art

[0002] At present, in a speed reduction mechanism, the half teeth of a differential are usually lubricated by stirring oil through the rotation of the differential itself. When the differential rotates, gear oil is thrown into the lubrication window of the differential housing, so as to lubricate the half teeth. This usually requires that the filled gear oil level exceeds the lubrication window of the differential housing. However, when the amount of gear oil is insufficient and the lubricating oil level is lower than the lubrication window of the differential housing, the half teeth of the differential need to be lubricated by the oil stirred by the differential teeth. However, the differential teeth are helical gears (see Figure 1 ), so most of the lubricating oil will be thrown to the large end side of the differential along the rotation direction of the differential teeth, resulting in insufficient lubrication of the half teeth of the differential. Therefore, the differential needs an oil baffle to guide the gear oil of the differential teeth to the half teeth of the differential to improve the lubrication effect. Summary of the Invention

[0003] The purpose of the utility model is to solve the problems existing in the prior art and provide an oil baffle of a differential. The oil baffle is fixedly connected to the reducer housing. The installation part, the diversion part and the folded edge of the oil baffle form a diversion groove. The left side of the diversion groove is higher than the right side, the right opening is larger than the left opening, and the right opening is located above the lubrication window of the differential housing. When the differential teeth rotate to stir the gear oil to splash, part of the splashed gear oil is diverted to the lubrication window of the differential through the diversion groove of the oil baffle, so as to lubricate the half teeth of the differential.

[0004] The purpose of the utility model is achieved as follows.

[0005] An oil baffle of a differential includes a differential housing, differential teeth and a reducer housing. The differential teeth are helical gears. The upper part of the reducer housing is fixedly connected with an oil baffle. The oil baffle is located above the small end of the differential and on the left side of the differential teeth. The oil baffle is integrally formed and includes an installation part and a diversion part from top to bottom. A through hole is arranged on the installation part. The installation part and the diversion part are bent. The lower end of the diversion part is bent inward to form a folded edge. The installation part, the diversion part and the folded edge jointly form a diversion groove for gear oil. The left side of the diversion groove is higher than the right side. The right opening of the diversion groove is larger than the left opening. The right opening of the diversion groove is located above the lubrication window of the differential housing.

[0006] Furthermore, the upper end of the installation part of the oil baffle extends with a limiting part. The limiting part is inserted into the limiting groove of the reducer housing, and the limiting part and the limiting groove are in a matching shape.

[0007] Furthermore, the through-hole of the oil baffle is fixedly connected to the reducer housing by bolts.

[0008] Furthermore, the guiding part extends rightward by an extending part, and the extending part and the mounting part form a clearance space for the differential driven gear.

[0009] The oil baffle structure of the differential of the present utility model is simple and low in cost. Even when the amount of gear oil is small, the differential driven gear can still achieve splash lubrication for half teeth of the differential.

[0010] The present utility model will be further described below in conjunction with the specification drawings and specific embodiments. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the present utility model.

[0012] Figure 2 It is a schematic structural diagram of the oil baffle of the present utility model.

[0013] Description of the reference numerals: differential housing 1, differential driven gear 2, oil baffle 3, mounting part 4, guiding part 5, through-hole 6, flanging 7, guiding groove 8, limiting part 9, limiting groove 10, bolt 11, extending part 12, reducer housing 13. Specific Embodiments

[0014] See Figures 1 to 2 , an oil baffle of a differential, including a differential housing 1, a differential driven gear 2, and a reducer housing 13. The differential driven gear 2 is a right-handed helical gear. When viewed from the motor side, the right-handed helical gear rotates counterclockwise. Due to the action of centrifugal force, most of the gear oil will be thrown to the large end side of the differential by the right-handed gear. A fixed connection is provided on the reducer housing 13 with an oil baffle 3. The oil baffle 3 is located above the small end of the differential and to the left of the differential driven gear 2. The oil baffle 3 is integrally formed and includes a mounting part 4 and a guiding part 5 from top to bottom. A through-hole 6 is provided on the mounting part 4, and the through-hole 6 is fixedly connected to the reducer housing 13 by bolts 11. The installation method is simple, convenient for replacement, and the maintenance cost is low. An upper end of the mounting part 4 of the oil baffle 3 extends with a limiting part 9, and the limiting part 9 is inserted into a limiting groove 10 of the reducer housing 13. The limiting part 9 and the limiting groove 10 are matched in shape, and the limiting part 9 makes the oil baffle 3 more stable and not prone to rotation and deviation.

[0015] The installation part 4 is bent between the diversion part 5. The lower end of the diversion part 5 is bent inward to form a hem 7. The installation part 4, the diversion part 5 and the hem 7 together form a diversion groove 8 for gear oil. The left side of the diversion groove 8 is higher than the right side. The right opening of the diversion groove 8 is larger than the left opening. The right opening of the diversion groove 8 is located above the lubrication window of the differential housing 1. The diversion part 5 extends to the right by an extension part 12. The extension part 12 and the installation part 4 form a clearance space for the differential secondary gear 2. The oil baffle of the differential of the present utility model has a simple structure, low cost, and is convenient for installation and maintenance. It can divert some of the gear oil splashed by the rotation of the differential secondary gear 2 into the lubrication window of the differential housing 1, greatly improving the lubrication effect on the differential half gear.

[0016] The foregoing are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications made to the present utility model by those skilled in the art without departing from the spirit of the present utility model fall within the protection scope of the present utility model.

Claims

1. An oil baffle of a differential, comprising a differential housing (1), a differential driven gear (2), and a reducer housing (13), wherein the differential driven gear (2) is a helical gear, and is characterized in that: An oil baffle (3) is fixedly connected to the upper part of the reducer housing (13). The oil baffle (3) is located above the small end of the differential and to the left of the driven gear (2) of the differential. The oil baffle (3) is integrally formed and includes an installation part (4) and a diversion part (5) from top to bottom. A through hole (6) is provided in the installation part (4). The installation part (4) is bent between it and the diversion part (5). The lower end of the diversion part (5) is bent inward to form a flange (7). The installation part (4), the diversion part (5), and the flange (7) together form a diversion groove (8) for gear oil. The left side of the diversion groove (8) is higher than the right side. The right opening of the diversion groove (8) is larger than the left opening. The right opening of the diversion groove (8) is located above the lubrication window of the differential housing (1).

2. The oil baffle of the differential according to claim 1, wherein: An upper end of the installation part (4) of the oil baffle (3) extends with a limiting part (9). The limiting part (9) is inserted into a limiting groove (10) of the reducer housing (13). The limiting part (9) and the limiting groove (10) are in matching shapes.

3. The oil baffle of the differential according to claim 1 or 2, characterized in that: The through hole (6) of the oil baffle (3) is fixedly connected to the reducer housing (13) by bolts (11).

4. The oil baffle of the differential according to claim 1 or 2, characterized in that: The diversion part (5) extends to the right with an extension part (12). The extension part (12) and the installation part (4) form a clearance space for the driven gear (2) of the differential.

Images