CN217177356U - Oil groove structure for improving lubrication of transmission gear and transmission case - Google Patents

Abstract

The utility model discloses an improve lubricated oil groove structure of derailleur gear and gearbox casing belongs to derailleur technical field, including guiding device, a plurality of oil duct holes, flourishing oil groove and oil through hole. The oil passage holes are formed in the joint surface of the main box shell and the auxiliary box shell, so that lubricating oil splashed by a gear at the rear end of the transmission smoothly splashes into the main transmission box shell at the front end of the transmission in the process that a vehicle ascends a slope, the lubricating oil is introduced to the gear and the gear shaft at the reverse gear intermediate shaft and the front end of the transmission under the action of the flow guide device, the oil containing groove and the oil through hole, the gear and the gear shaft at the reverse gear intermediate shaft and the front end of the transmission are fully lubricated, and the problems that the temperature of the gear of the transmission is high, the gear and a bearing are ablated, and the gear is damaged due to the insufficient lubrication of the gear at the front end of the transmission in the process that the vehicle ascends a slope are solved. The service life of the gear and the transmission is prolonged, and the maintenance cost of the vehicle is reduced.

Description

Oil groove structure for improving lubrication of transmission gear and transmission case

Technical Field

The utility model belongs to the technical field of the derailleur, a lubricated oil groove structure of derailleur gear and gearbox casing are improved to improvement.

Background

The automobile transmission is used as a main component in an automobile transmission system and is used for changing the torque and the rotating speed of an engine so as to adapt to different requirements of an automobile on the traction force of a driving wheel and the speed of the automobile under different conditions of starting, accelerating or running and the like. The speed variator relies primarily on the gear ratios of the gears to vary speed, with motion and power transfer between the working faces of the gears being accomplished in the interaction and relative motion of each pair of engaging flanks in the gear mechanism. The lubrication of the gears can greatly reduce the friction force between the gears, reduce the mechanical abrasion between the gears and prolong the service life of the gears.

However, during the vehicle ascending a slope, gear lubricant in the transmission accumulates toward the rear end of the transmission under the action of gravity. The front end gear of the transmission is not lubricated enough, so that the lubrication is insufficient, and the abrasion among the gears is accelerated. When a vehicle runs on a long slope, the gear at the front end of the transmission cannot be sufficiently lubricated for a long time, so that dry grinding of the gear occurs, the conditions of high temperature of the gear of the transmission, ablation of the gear and a bearing, gear beating and the like are easily caused, the gear of the transmission is damaged, the service life of the gear of the transmission is shortened, serious people can also cause accidents, and the maintenance cost of the vehicle is improved. The problem is more obvious especially for the reverse gear intermediate shaft structure of the main box and the auxiliary box.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the problem among the prior art, provide an improve lubricated oil groove structure of derailleur gear and gearbox casing, can make the vehicle at the in-process on upslope, the lubricating oil of derailleur rear end successfully spatters to the derailleur front end and plays the lubrication action to the gear of derailleur front end etc. increases the oily volume of crossing between the gear, reduces the wearing and tearing between the gear, improves the life of derailleur.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

the utility model provides an oil groove structure for improving the lubrication of a transmission gear, which comprises a flow guiding device and a plurality of oil passage holes, wherein one end of the flow guiding device is connected with the inner wall of the front end surface of a main transmission case shell, the other end of the flow guiding device is connected with an oil containing groove, and the horizontal included angle between the oil containing groove and the inner wall of the top end of the main transmission case shell is less than 90 degrees, the oil containing groove is arranged right above a reverse gear intermediate shaft mounting hole, and the bottom end of the oil containing groove is provided with an oil through hole; the oil passage hole is formed in the main and auxiliary box shell combination surface below the reverse gear middle shaft mounting hole and is located below the main shaft mounting hole.

Preferably, the number of the oil passage holes is 2.

Preferably, one side of the flow guide device, which is close to the front end of the main gearbox shell, is connected with a flow guide plate, and the flow guide plate is horizontally arranged.

Preferably, the guide plate is provided with a guide opening or a guide hole for guiding the lubricating oil to a gear or a bearing below the main gearbox.

Preferably, the flow guiding device is cast on the inner side wall of the main transmission case shell.

Preferably, the included angle between the flow guide device and the inner wall of the top end of the main gearbox shell in the horizontal direction is 30 degrees.

Preferably, the flow guiding device is a flow guiding plate or a flow guiding groove.

Preferably, the guide grooves are arc-shaped grooves.

The utility model also provides a gearbox housing, including foretell gearbox gear lubrication's of improving oil groove structure.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a set up a plurality of oil ducts holes in major-minor case casing faying face department, make the vehicle at the in-process on upslope, the lubricating oil that the derailleur rear end gear splashes to the derailleur front end spatters smoothly in the main gearbox casing, and at guiding device, under the effect of flourishing oil groove and oil through hole, introduce lubricating oil for on the gear and the gear shaft of reverse gear jackshaft and derailleur front end, the gear that makes reverse gear jackshaft and derailleur front end obtains abundant lubrication, avoided because the gear dry grinding that the lubrication inadequately arouses, transmission gear temperature height and gear and bearing ablation, the gear beats the damage of the derailleur gear that the circumstances such as tooth caused, and then the life of gear and derailleur has been improved, the cost of maintenance of vehicle has been reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a front sectional view of a main transmission case housing with an oil groove structure for improving lubrication of transmission gears according to the present invention.

Fig. 2 is the utility model discloses a main gear box casing overlooking structure picture with improve lubricated oil groove structure of derailleur gear.

Fig. 3 is a structure diagram of the joint surface of the main box and the auxiliary box of the present invention.

Wherein: 1-oil passage hole, 2-front end face of main gearbox shell, 3-flow guide device, 4-oil containing groove, 5-oil passage hole, 6-reverse gear intermediate shaft mounting hole, 7-main and auxiliary box shell junction surface and 8-main shaft mounting hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "horizontal", "inner", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings:

referring to fig. 1 to 3, the utility model provides an improve lubricated oil groove structure of derailleur gear, including oil duct hole 1, guiding device 3, flourishing oil groove 4 and oil through hole 5. The inner wall of the front end face 2 of the main gearbox shell is connected with the flow guide device 3, the other end of the flow guide device is connected with the oil containing groove 4, the flow guide device or the flow guide groove is preferably an arc groove, the included angle between the flow guide device 3 and the inner wall of the top end of the main gearbox shell in the horizontal direction is smaller than 90 degrees, and the included angle between the flow guide device 3 and the gear in the front end of the main gearbox shell in the horizontal direction is set to be 30 degrees, so that the flow guide device 3 can be used for bearing lubricating oil by enough bearing faces, and lubricating oil can be smoothly guided into the gear at the end of the gearbox and the gear shaft under the action of gravity. The oil containing groove 4 is arranged right above the reverse gear intermediate shaft mounting hole 6, and the oil through hole 5 is arranged at the bottom of the oil containing groove 4; the number of the oil passage holes 1 is 2, the oil passage holes are arranged on a main and auxiliary box shell joint surface 7 below the reverse gear intermediate shaft mounting hole 6 and are positioned below a main shaft mounting hole 8.

Wherein, guiding device 3 casts on main gearbox casing inside wall, and one side that is close to main gearbox casing front end is connected with the guide plate, the guide plate is the level setting, and is provided with water conservancy diversion mouth or water conservancy diversion hole for on the gear or the gear shaft with lubricating oil water conservancy diversion below the main gearbox.

The utility model also provides a gearbox housing including above-mentioned oil groove structure, when the vehicle climbing in-process, oil duct hole 1 on the main and auxiliary box casing faying face 7 can improve the circulation of lubricating oil between main, auxiliary transmission, and when the auxiliary transmission intermediate gear of being convenient for was high-speed when moving, in being drawn into the main gearbox with the lubricating oil in the auxiliary transmission through oil duct hole 1, increased the lubricating oil mass in the main gearbox.

The gear in the main gearbox drives the lubricating oil of the main gearbox in the transmission to splash through high-speed operation. Part of the splashed lubricating oil flows to the front end of the transmission along the lubricating oil groove 3, so that the problem of insufficient lubrication of the front-end gear of the transmission when the vehicle ascends a slope is solved;

the other part falls into the oil containing groove 4 and flows into the reverse gear middle shaft hole 6 along the oil through hole 5 at the bottom of the oil containing groove 4 to lubricate the reverse gear middle shaft. Improve the lubricated condition of reverse gear jackshaft when going up a slope.

To sum up, the utility model provides an improve lubricated oil groove structure of derailleur gear and gearbox casing can realize reversing gear jackshaft and the gear of derailleur front end and fully lubricate, has avoided because the gear that the lubrication fully arouses grinds futilely, and the transmission gear damage that the condition such as derailleur gear temperature height and gear and bearing ablation, gear beat the tooth caused has then improved the life of gear and derailleur, has reduced the cost of maintenance of vehicle.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. An oil groove structure for improving transmission gear lubrication is characterized by comprising a flow guide device (3) and a plurality of oil passage holes (1), wherein one end of the flow guide device (3) is connected with the inner wall of the front end face (2) of a main transmission case shell, the other end of the flow guide device is connected with an oil containing groove (4), an included angle between the oil containing groove and the inner wall of the top end of the main transmission case shell in the horizontal direction is smaller than 90 degrees, the oil containing groove (4) is arranged right above a reverse gear middle shaft mounting hole (6), and the bottom end of the oil containing groove is provided with an oil through hole (5); the oil passage hole (1) is formed in a main box shell joint surface (7) below the reverse gear middle shaft mounting hole (6) and is located below the main shaft mounting hole (8).

2. An oil sump structure for improving lubrication of transmission gears according to claim 1, wherein the number of the oil passage holes (1) is 2.

3. An oil sump structure for improving the lubrication of gears of a transmission according to claim 1, characterized in that a deflector is connected to one side of the deflector (3) near the front end of the main transmission casing, and the deflector is horizontally arranged.

4. An oil sump structure for improving the lubrication of gears of a transmission according to claim 3, wherein the deflector is provided with a deflector port or a deflector hole for guiding the lubricating oil to the gear or the bearing below the main transmission case.

5. An oil sump structure for improving lubrication of transmission gears according to claim 1, wherein the flow guiding device (3) is cast on the inner side wall of the main transmission case housing.

6. An oil sump structure for improving the lubrication of gears of a transmission according to claim 1, wherein the angle between the flow guiding device (3) and the horizontal direction of the inner wall of the top end of the main transmission case is 30 degrees.

7. An oil sump structure for improving the lubrication of transmission gears according to claim 1, characterized in that the flow guiding device (3) is a flow guiding plate or a flow guiding groove.

8. An oil sump structure for improving lubrication of a transmission gear according to claim 7, wherein the guide grooves are arc-shaped grooves.

9. A gearbox housing comprising an oil sump structure according to any of claims 1 to 8 for improving lubrication of a transmission gear.

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