CN212959785U

CN212959785U - Oil guide structure of transmission

Info

Publication number: CN212959785U
Application number: CN202020898021.0U
Authority: CN
Inventors: 何兰映; 周培良; 罗玉龙
Original assignee: Ningbo Shenglong Automotive Powertrain System Co Ltd
Current assignee: Ningbo Shenglong Automotive Powertrain System Co Ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-04-13
Anticipated expiration: 2030-05-25

Abstract

The utility model discloses an oily structure is led to derailleur, it includes a planet carrier and leads the oil pan, and planet carrier inner wall is equipped with an annular, leads to extend a convex closure on the oil pan side outer wall, and the convex closure turns up along leading oil pan the central axis direction, and the convex closure is 15 ~ 25 degrees angles with leading the oil pan the central axis at the cross-section of leading oil pan the central axis direction, leads the oil pan to cooperate and the pressure equipment cover locates in the planet carrier through convex closure and annular. The utility model discloses lead the convex closure pressfitting that forms through the punching press on the food tray and in the planet carrier, guaranteed the pressure of leading the oil tray and take off power, and workable, low in production cost.

Description

Oil guide structure of transmission

Technical Field

The utility model relates to a gearbox technical field specifically is derailleur and leads oily structure.

Background

The existing vehicle transmission lubrication generally adopts splash lubrication, namely, a certain amount of lubricating oil is stored in the transmission, and the lubricating oil is splashed to parts such as gears, shafts, bearings and the like which need to be lubricated through high-speed rotation of a gear pair. Because the structure of the speed changer is complex and limited, internal parts can not be fully lubricated under the action of centrifugal force during high-speed operation, thereby abnormal abrasion is caused, the service life of parts is shortened, and simultaneously, an oil guide disc in the speed changer is easy to deform or even fall off under the action of the centrifugal force.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: the oil guide structure of the transmission is provided, the oil guide disc on the oil guide structure is pressed in the planet carrier through the convex hull formed by stamping, the press-disengaging force of the oil guide disc is guaranteed, and the oil guide structure is easy to process and low in production cost.

The utility model adopts the technical proposal that: the novel oil guide device comprises a planet carrier and an oil guide disc, wherein an annular groove is formed in the inner wall of the planet carrier, a convex hull extends out of the outer wall of the side edge of the oil guide disc, the convex hull turns outwards along the direction of the central axis of the oil guide disc, and the oil guide disc is matched with the annular groove through the convex hull and is arranged in the planet carrier in a press-fitting mode.

Preferably, the number of the convex hulls is several, and the several convex hulls are uniformly arranged on the peripheral side of the oil guide disc according to an annular array.

Preferably, the oil guide disc is made of an easily-punched forming material, and the convex hull is formed by adopting a punching process, so that the structure is easy to form, and the processing cost is low.

Preferably, a flange extends from one side of the ring groove close to the opening of the planet carrier, and after the convex hull of the oil guide disc is matched with the ring groove, the convex hull is positioned in a space formed by the ring groove and the flange, so that the flange can prevent the oil guide disc from falling off.

Preferably, the flange is provided with a guide surface on one side close to the opening of the planet carrier, so that the oil guide disc convex hull can be conveniently pressed into the annular groove of the planet carrier along the guide surface.

Preferably, the groove width is greater than the lobe height.

Preferably, a plurality of pits formed by stamping are uniformly arranged on the oil guide plate surface, and the pits are used for reinforcing the surface of the oil guide plate and preventing the oil guide plate from axially deforming.

The utility model discloses oily structure is led to derailleur, its advantage as follows: disc oil guide disc side is equipped with the convex closure that forms through the punching press processing mode, a plurality of convex closures are arranged in oil guide disc week side according to annular array uniformly, be equipped with the annular on the planet carrier inside wall, make oil guide disc assemble in the planet carrier in the annular through the convex closure pressure equipment, the elastic deformation shrink of oil guide disc and convex closure itself is adopted to the pressure equipment in-process, the convex closure elasticity extends behind the annular of impressing, the contact quantity of convex closure and annular has been guaranteed, thereby guarantee that the oil guide disc has great pressure power of taking off, make oil guide disc and planet carrier assembly more firm.

Drawings

Fig. 1 is a schematic structural section of the present invention.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a schematic structural view of the oil guiding disc of the present invention.

Fig. 4 is a partial cross-sectional view of a convex hull.

The device comprises a planet carrier 1, a planet carrier 2, an oil guide disc 3, a ring groove 4, a convex hull 5, a flange 6, a guide surface 7 and a concave pit.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Embodiment one, as shown in fig. 1, 2, the utility model provides a derailleur leads oily structure, it includes a planet carrier 1 and leads oil pan 2, planet carrier 1 inner wall is equipped with an annular 3, extend a convex closure 4 on leading oil pan 2 side outer wall, because it is easy stamping forming material to lead oil pan 2, elasticity is good, convex closure 4 adopts stamping process to form, as shown in fig. 4, convex closure 4 turns up along leading oil pan 2 the central axis direction, make convex closure 4 have certain bent angle of warping, make annular 3 width be greater than convex closure 4 height, convex closure 4 could hold in annular 3 completely, guarantee convex closure 4 and annular 3's contact quantity, guarantee that the part has great pressure-disengaging force. The number of the convex hulls 4 is a plurality of, and a plurality of convex hulls 4 are uniformly distributed on the periphery of the oil guide disc 2 according to an annular array, the oil guide disc 2 is matched with the annular groove 3 through the convex hulls 4 and is sleeved in the planet carrier 1, because the main body of the oil guide disc 2 is made of a material with certain elasticity and easy stamping forming, the convex hulls 4 also have certain elasticity at the same time, the oil guide disc 2 is pressed into the planet carrier 1, the convex hulls 4 and the faces of the oil guide disc 2 are elastically deformed, when the convex hulls 4 are completely pressed into the annular groove 3, the assembly work is completed, the elastic deformation of the convex hulls 4 and the faces of the oil guide disc 2 is recovered, and the convex hulls 4 and the oil guide disc 2 are integrated, therefore, the oil guide disc 2 is guaranteed to be not easy to fall off even bearing large centrifugal pressure in the oil distribution process, according to different working conditions, the number of the convex hulls 4 can be properly increased or reduced, and the pressure.

Above-mentioned assembly type is different from among the prior art technological means of beating convex closure 4 after the pressure equipment earlier, the utility model discloses simple structure is through mould one shot forming to save the relevant equipment and the auxiliary fixtures of big convex closure 4 after the pressure equipment, not only reduce manufacturing cost, improve machining efficiency moreover, and beat convex closure 4's technological means after the pressure equipment earlier have the mistake beat, leak and beat risks such as partially, finally can lead to other relevant parts or finished product size deviation, and the utility model discloses then stable in structure is reliable, and the tensile ability of taking off is strong, does not exist above-mentioned risk.

In addition, as shown in fig. 3, a plurality of pits 7 are uniformly arranged on the surface of the oil guide disc 2, and the pits 7 are formed by directly deforming the surface of the oil guide disc 2 in a stamping mode, or a fixing block is additionally arranged on the inner bottom surface of the oil guide disc 2 and used for reinforcing the strength of the surface of the oil guide disc 2 and preventing the oil guide disc 2 from deforming.

In the second embodiment, in another case, in order to facilitate press-fitting, the annular groove 3 of the planet carrier 1 requires angular requirements, so that a flange 5 extends from one side of the annular groove 3 close to the opening of the planet carrier 1, a guide surface 6 is arranged on one side of the flange 5 close to the opening of the planet carrier 1, the curved surface of the convex hull 4 is along the guide surface 6, the force for extruding the convex hull 4 is more labor-saving, and the convex hull 4 after assembly is not separated from the annular groove 3, i.e., the press-disengaging force is properly increased. The rest is the same as the first embodiment.

The planet carrier 1 is a powder metallurgy part.

While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. The oil guide structure of the transmission is characterized by comprising a planet carrier and an oil guide disc, wherein an annular groove is formed in the inner wall of the planet carrier, a convex hull extends out of the outer wall of the side edge of the oil guide disc, the convex hull turns outwards along the direction of the central axis of the oil guide disc, and the oil guide disc is matched with the annular groove through the convex hull and is sleeved in the planet carrier in a press-fitting mode.

2. The transmission oil guide structure according to claim 1, characterized in that: the convex hulls are arranged on the periphery of the oil guide disc uniformly according to the annular array.

3. The transmission oil guide structure according to claim 2, characterized in that: the oil guide disc is made of an easily-punched forming material, and the convex hull is formed by adopting a punching process.

4. The transmission oil guide structure according to claim 1, characterized in that: a flange extends from one side of the ring groove close to the opening of the planet carrier.

5. The transmission oil guide structure according to claim 4, characterized in that: and one side of the flange, which is close to the opening of the planet carrier, is provided with a guide surface.

6. The transmission oil guide structure according to claim 1, characterized in that: the width of the ring groove is larger than the height of the convex hull.

7. The transmission oil guide structure according to claim 1, characterized in that: and a plurality of pits formed by punching are uniformly arranged on the oil guide plate surface.