Planet carrier lubricating structure

Abstract

A planet carrier lubricating structure belongs to the technical field of automatic transmissions. The planet carrier is connected with the guide gasket and the oil guide plate; the guide gasket is provided with a wedge-shaped face, the wedge-shaped face corresponds to the oil guide plate, and an oil passing channel is reserved between the guide gasket and the oil guide plate. The oil guide plate comprises a mounting plate, a matching plate and a guide plate; the mounting plate is vertically and fixedly connected with the matching plate; the matching plate is vertically and fixedly connected with the guide plate; the mounting plate is connected with the planet carrier; the matching plate is attached to the planet carrier. And the guide plate corresponds to the wedge-shaped surface of the guide gasket. The oil guide plate is made of aluminum alloy and is formed through punching. Through the synergistic effect of the wedge-shaped face of the guide gasket and the oil guide plate, lubricating oil can flow into the planet carrier more effectively, uniform and sufficient lubrication is achieved, and abrasion and faults caused by insufficient lubrication are reduced. The oil guide plate is made of an aluminum alloy material and is manufactured through a punch forming process, a special die is not needed, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to a planetary carrier lubrication structure and belongs to the technical field of automatic transmissions. Background Art

[0002] The performance and reliability of the automatic transmission have a vital impact on the operation of the vehicle. As one of the core components of the automatic transmission, the planetary carrier undertakes the key task of power transmission and distribution. Therefore, the lubrication of the planetary carrier occupies a relatively important position in the power transmission of the automatic transmission, and its lubrication effect directly affects the power transmission efficiency and stability of the transmission and even the entire power system.

[0003] With the continuous advancement of automatic transmission technology, the number of transmission gears has continued to increase, and the number of planetary carriers has become more dense. This change has made the friction and wear between the planetary carriers more prominent, thus placing higher requirements on the lubrication of the planetary carriers. Therefore, the lubrication problem in the automatic transmission, especially the lubrication problem on the key part of the planetary carrier, has become particularly important.

[0004] At present, the lubrication method of the planetary carrier is mainly that the oil cooperates with the oil guide plate through the centrifugal action. The following are the problems:

[0005] 1. Lubrication by centrifugal action is an irregular rotation, which cannot accurately point the planetary carrier for oil supply, resulting in uneven lubrication effect and insufficient lubrication in some areas.

[0006] 2. The oil guide plate is generally made of resin material and requires a special mold for production, which increases the manufacturing cost. Once the mold is damaged or needs to be replaced, it will seriously affect the production efficiency. Utility Model Content

[0007] In order to solve the problems existing in the background technology, the utility model provides a planetary carrier lubrication structure.

[0008] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a planetary carrier lubrication structure, including a planetary carrier, a guide gasket and an oil guide plate; the inner end of the planetary carrier is rotatably connected to the inner end of the guide gasket, and the outer end of the planetary carrier is connected to the outer end of the annular oil guide plate; the outer end of the guide gasket is provided with an inwardly inclined wedge surface, the wedge surface is arranged corresponding to the inner end of the oil guide plate, and an oil passage is left between the guide gasket and the oil guide plate.

[0009] The oil guide plate includes an integrally formed mounting plate, a matching plate and a guide plate; the mounting plate is annular, and one end of the mounting plate is vertically fixedly connected to the outer wall of the annular matching plate, and the inner wall of the matching plate is vertically fixedly connected to one end face of the annular guide plate with an L-shaped cross-section; the mounting plate is connected to the outer end of the planetary carrier; the matching plate is fitted with the end face of the planetary carrier; the other end of the guide plate is arranged corresponding to the wedge-shaped surface of the guide gasket.

[0010] The material of the oil guide plate is aluminum alloy.

[0011] The oil guide plate is formed by stamping.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model enables the lubricating oil to flow into the planetary carrier more effectively through the synergistic effect of the wedge surface of the guide gasket and the oil guide plate, thereby achieving uniform and sufficient lubrication, avoiding the problem of uneven lubrication caused by irregular rotation in traditional lubrication methods, ensuring the lubrication effect of each area of ​​the planetary carrier, and reducing wear and failure caused by insufficient lubrication.

[0014] 2. The oil guide plate of the utility model is made of aluminum alloy material and is manufactured by a stamping process, without the need for a special mold, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the use state of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the oil guide plate. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] A planetary carrier lubrication structure comprises a planetary carrier 7, a guide gasket 8 and an oil guide plate 10; the inner end of the planetary carrier 7 is rotatably connected to the inner end of the guide gasket 8 via a gasket bearing 9, and the outer end of the planetary carrier 7 is interference-connected to the outer end of the annular oil guide plate 10; the outer end of the guide gasket 8 is provided with an inwardly inclined wedge surface, the wedge surface is arranged corresponding to the inner end of the oil guide plate 10, and an oil passage is left between the guide gasket 8 and the oil guide plate 10.

[0019] The oil guide plate 10 includes an integrally formed mounting plate 1, a matching plate 2 and a guide plate 3; the mounting plate 1 is annular, and one end of the mounting plate 1 is vertically fixedly connected to the outer wall of the annular matching plate 2, and the inner wall of the matching plate 2 is vertically fixedly connected to one end face of the annular guide plate 3 with an L-shaped cross-section; the mounting plate 1 is connected to the outer end of the planet carrier 7 by interference fit; the matching plate 2 is fitted with the end face of the planet carrier 7; the other end of the guide plate 3 is arranged corresponding to the wedge-shaped surface of the guide gasket 8.

[0020] The guide plate 3 is used to introduce lubricating oil. Due to the centrifugal force, the mounting plate 1 expands outward and fits more closely with the planet carrier 7, effectively solving the problem of oil guide plate movement when the planet carrier rotates at high speed in the transmission. At the same time, the matching plate 2 fits with the planet carrier, making installation easy.

[0021] The oil guide plate 10 is made of aluminum alloy. Aluminum alloy is light in weight and can be made into a thin piece with a weight as close as possible to that of a resin piece. However, compared with a resin piece, the mold is eliminated, thereby reducing the production cost.

[0022] The oil guide plate 10 is formed by stamping.

[0023] The height that the guide plate 3 can be expanded is calculated by the boundary size of the planet carrier, that is, the height between the guide plate 3 and the end surface of the planet carrier 7. After the height value is calculated, the oil guide plate 10 is processed using the maximum height, and the aluminum alloy is selected according to the size for stamping the blank, and the oil guide plate is finally formed, which reduces the cost and improves the economy.

[0024] When the utility model is used, the planet carrier 7 rotates at high speed in the transmission, and oil is supplied for lubrication by means of rotational centrifugation. The lubricating oil is first supplied to the washer bearing 9 with a smaller diameter, and as it rotates, the lubricating oil is thrown outward by centrifugal force. Through the wedge-shaped surface of the guide washer 8, the lubricating oil flows into the oil passage between the oil guide plate 10 and the planet carrier 7. The oil guide plate 10 collects the thrown lubricating oil and makes it flow into the shaft 6 to provide lubrication for the gear bearing 5. Under the action of centrifugal force, the lubricating oil further provides lubrication for the gear 4.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent conditions of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A planetary carrier lubrication structure, characterized in that: The invention comprises a planetary carrier (7), a guide gasket (8) and an oil guide plate (10); the inner end of the planetary carrier (7) is rotatably connected to the inner end of the guide gasket (8), and the outer end of the planetary carrier (7) is connected to the outer end of the annular oil guide plate (10); the outer end of the guide gasket (8) is provided with an inwardly inclined wedge surface, the wedge surface is arranged corresponding to the inner end of the oil guide plate (10), and an oil passage is left between the guide gasket (8) and the oil guide plate (10).

2. A planetary carrier lubrication structure according to claim 1, characterized in that: The oil guide plate (10) comprises an integrally formed mounting plate (1), a matching plate (2) and a guide plate (3); the mounting plate (1) is annular, and one end of the mounting plate (1) is vertically fixedly connected to the outer wall of the annular matching plate (2), and the inner wall of the matching plate (2) is vertically fixedly connected to one end face of an annular guide plate (3) having an L-shaped cross section; the mounting plate (1) is connected to the outer end of the planet carrier (7); the matching plate (2) is fitted with the end face of the planet carrier (7); and the other end of the guide plate (3) is arranged corresponding to the wedge-shaped surface of the guide gasket (8).

3. A planetary carrier lubrication structure according to claim 1 or 2, characterized in that: The material of the oil guide plate (10) is aluminum alloy.

4. A planetary carrier lubrication structure according to claim 3, characterized in that: The oil guide plate (10) is formed by stamping.

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