Speed reducer oil guide device, speed reducer and automobile

Abstract

The invention relates to a speed reducer oil guide device, a speed reducer and an automobile. The speed reducer oil guide device comprises a first oil guide groove formed in the end, close to an intermediate shaft gear of the automobile speed reducer, of the oil guide device and used for guiding lubricating oil into a lubricating area of a front shell bearing seat of the automobile speed reducer; the second oil guide groove is formed in the side, close to the input shaft gear of the automobile speed reducer, of the oil guide device and used for collecting lubricating oil splashed by the input shaft gear and guiding the lubricating oil into a lubricating area of a rear shell bearing seat of the automobile speed reducer. And the oil baffle rib is arranged between the first oil guide groove and the second oil guide groove and connected with the first oil guide groove and the second oil guide groove, and the oil baffle rib protrudes towards a gear set of the automobile speed reducer and is used for collecting lubricating oil splashed by the gear set of the automobile speed reducer and guiding the lubricating oil into the first oil guide groove and the second oil guide groove. According to the speed reducer oil guide device, the speed reducer and the automobile, the lubricating effect, efficiency and reliability can be improved, and the service life of the speed reducer is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of transmissions in the automobile manufacturing industry, and in particular to a reducer oil guide device, a reducer and an automobile. Background Art

[0002] The transmission is an important part of the automotive power system. It uses different gear combinations and transmission ratios to adapt the engine's output power to different driving requirements (such as acceleration, cruising, climbing, etc.). In order to ensure the efficient and reliable operation of the transmission, the role of lubricating oil is very critical. Lubricating the transmission can reduce friction, reduce wear, conduct heat, protect metal surfaces, and clean internal components.

[0003] Compared with traditional fuel vehicle transmissions, electric vehicle reducers have a simpler structure and smaller size, but the input speed is much higher than traditional transmissions. The working environment of parts such as bearings and oil seals is more demanding. Due to limitations, they do not have the hydraulic active lubrication structure of traditional transmissions. Splash lubrication uses the centrifugal force of rotating parts such as gears inside the reducer to splash lubricating oil onto surrounding parts. This lubrication method has a simple structure, low cost, and can achieve self-sufficient lubrication. However, the disadvantage of splash lubrication is that the supply of lubricating oil is unstable and easily affected by working conditions. Under high speed or heavy load conditions, splash lubrication may not be able to meet the lubrication needs, resulting in increased wear of gears and other parts. Summary of the invention

[0004] Based on this, it is necessary to provide a reducer oil guide device, a reducer and a car that can improve the lubrication effect in order to address the current problem of insufficient lubricating oil supply for automobile reducers.

[0005] A reducer oil guide device, comprising:

[0006] A first oil guide groove is provided at one end of the oil guide device close to the intermediate shaft gear of the automobile reducer, and is used to guide the lubricating oil into the lubricating area of ​​the front housing bearing seat of the automobile reducer;

[0007] A second oil guide groove is provided on a side of the oil guide device close to the input shaft gear of the automobile reducer, and is used to collect the lubricating oil splashed by the input shaft gear and guide the lubricating oil into the lubricating area of ​​the rear housing bearing seat of the automobile reducer;

[0008] An oil-blocking rib is arranged between the first oil-conducting groove and the second oil-conducting groove and is connected to the first oil-conducting groove and the second oil-conducting groove. The oil-blocking rib protrudes toward the gear set of the automobile reducer and is used to collect the lubricating oil splashed by the gear set of the automobile reducer and guide the lubricating oil into the first oil-conducting groove and the second oil-conducting groove.

[0009] In one embodiment, the oil-blocking rib includes a first inclined surface and a second inclined surface connected to each other, the first inclined surface is connected to the first oil guiding groove, the second inclined surface is connected to the second oil guiding groove, and the angle between the first inclined surface and the bottom surface of the first oil guiding groove is not equal to the angle between the second inclined surface and the bottom surface of the second oil guiding groove.

[0010] In one embodiment, the length of the first oil guiding groove is greater than the length of the second oil guiding groove.

[0011] In one embodiment, the first oil guide groove includes a first bending section and a first oil guide section, one end of the first bending section is connected to the first oil guide section, and the other end is connected to the oil baffle rib, and the first bending section is bent toward the intermediate shaft of the automobile reducer relative to the first oil guide section and the oil baffle rib, so as to collect the lubricating oil splashed by the intermediate shaft gear.

[0012] In one embodiment, the first oil guiding groove further includes a first outlet section connected to the first oil guiding section, and the cross-sectional area of ​​the first outlet section is larger than the cross-sectional area of ​​the first oil guiding section; the second oil guiding groove includes a second oil guiding section and a second outlet section, and the cross-sectional area of ​​the second outlet section is larger than the cross-sectional area of ​​the second oil guiding section.

[0013] In one embodiment, a cross-sectional area of ​​the first oil guiding section is greater than a cross-sectional area of ​​the second oil guiding section.

[0014] In one of the embodiments, the oil guiding device further includes a connecting member, which is disposed below the lubricating oil flow channel and is used to fixedly connect the reducer oil guiding device to the reducer.

[0015] In one of the embodiments, the connecting member includes a buckle, and the buckle is used to connect the front housing bearing seat of the reducer.

[0016] In a second aspect, a reducer is provided, the reducer comprising:

[0017] An input shaft connected to a power source of the automobile;

[0018] A front housing bearing, provided at one end of the input shaft connected to the power source, for supporting the front end of the input shaft;

[0019] A front housing bearing seat, used for mounting the front housing bearing, wherein a fixing portion is provided on the front housing bearing seat;

[0020] a rear housing bearing, disposed at an end of the input shaft close to the gear system of the vehicle, for supporting the rear end of the input shaft during gear meshing;

[0021] a rear housing bearing seat, used for mounting the rear housing bearing; and,

[0022] As described in the first aspect or any one embodiment of the first aspect, the reducer oil guiding device is arranged below the input shaft, and the reducer oil guiding device is fixedly connected to the fixed part, and is used to guide the lubricating oil to the front housing bearing and the rear housing bearing.

[0023] In a third aspect, a car is provided, comprising a reducer as described in the second aspect or any one of the embodiments of the second aspect, wherein the reducer is used to adjust the torque and rotation speed output by a power source of the car.

[0024] The above-mentioned reducer oil guide device, reducer and automobile respectively guide the lubricating oil into the bearing seat grooves of the front shell and the rear shell through the first oil guide groove and the second oil guide groove, and can use the lubricating oil splashed by the gears to dynamically replenish lubrication, optimize the flow path of the lubricating oil, avoid the accumulation of lubricating oil in non-critical lubrication areas, and enable key components such as bearings in the reducer to be fully lubricated, reduce the friction of the intermediate shaft gears, input shaft gears and related bearings, and improve the transmission efficiency. The oil retaining ribs protrude in the direction of the gear set, and can effectively receive the lubricating oil splashed by the gears and guide it to the first and second oil guide grooves, which can reduce the disordered splashing of the lubricating oil and concentrate the lubricating oil to the areas that need lubrication, forming a multi-stage lubrication path, reducing lubricating oil waste, improving the utilization efficiency of lubricating oil, reducing local over-lubrication or under-lubrication, and being conducive to the precise distribution of lubricating oil in the automobile reducer, improving the lubrication effect, efficiency and reliability, and extending the service life of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] FIG1 is a schematic structural diagram of a reducer oil guide device provided by an embodiment of the present invention;

[0027] FIG. 2 is a schematic diagram of the structure of a reducer provided in an embodiment of the present invention.

[0028] In order to make the above and other objects, features, advantages and embodiments of the present invention more clearly understood, the attached symbols are explained as follows:

[0029] 100, reducer oil guide device; 110, first oil guide groove; 111, first bending section; 112, first oil guide section; 113, first outlet section; 120, oil baffle rib; 121, first inclined surface; 122, second inclined surface; 130, second oil guide groove; 131, second outlet section; 140, oil baffle plate; 150, fixing part; 200, reducer; 210, front housing; 211, front housing bearing; 220, rear housing; 221, rear housing bearing; 230, input shaft gear; 240, intermediate shaft gear. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] With the rapid development of new energy vehicles, new energy vehicles continue to sell well, the degree of electrification and intelligence of new energy vehicles continues to rise, new platforms and new architectures emerge in an endless stream, and the retail volume and penetration rate of new energy passenger vehicles continue to rise, among which pure electric vehicles occupy an increasing market share. In pure electric vehicles, the reducer, as an important drive system, reduces the speed and increases the torque, which can enable the vehicle to pass smoothly in various road conditions. Compared with the traditional fuel vehicle transmission, the electric vehicle reducer has a simple structure and a small volume, but the input speed is much higher than the traditional transmission, and the working environment of parts such as bearings and oil seals is more demanding. Due to the limitation, it does not have the hydraulic active lubrication structure of the traditional transmission. The splash lubrication method uses the centrifugal force of rotating parts such as gears inside the reducer to throw the lubricating oil onto the surrounding parts. This lubrication method has a simple structure and low cost, and can achieve self-sufficient lubrication. However, the disadvantage of splash lubrication is that the supply of lubricating oil is unstable and easily affected by the working state. Under high speed or heavy load conditions, splash lubrication may not meet the lubrication requirements, resulting in increased wear of parts such as gears. In response to the above problems, the present application provides a reducer oil guide device, a reducer and a car. FIG1 is a schematic diagram of the structure of a reducer oil guide device provided by an embodiment of the present invention; FIG2 is a schematic diagram of the structure of a reducer provided by an embodiment of the present invention. Referring to FIG1 and FIG2, a reducer oil guide device 100 provided by an embodiment of the present invention includes:

[0037] The first oil guide groove 110 is provided at one end of the oil guide device close to the intermediate shaft gear 240 of the automobile reducer 200, and is used to guide the lubricating oil into the lubricating area of ​​the front housing bearing seat of the automobile reducer 200;

[0038] The second oil guide groove 130 is arranged on a side of the oil guide device close to the input shaft gear 230 of the automobile reducer 200, and is used to collect the lubricating oil splashed by the input shaft gear 230 and guide the lubricating oil into the lubricating area of ​​the rear housing bearing seat of the automobile reducer 200;

[0039] The oil-blocking rib 120 is disposed between the first oil-conducting groove 110 and the second oil-conducting groove 130 and is connected to the first oil-conducting groove 110 and the second oil-conducting groove 130. The oil-blocking rib 120 protrudes toward the gear set of the automobile reducer 200 and is used to collect the lubricating oil splashed by the gear set of the automobile reducer 200 and introduce the lubricating oil into the first oil-conducting groove 110 and the second oil-conducting groove 130.

[0040] Among them, the input shaft of the automobile reducer 200 refers to the shaft located at the front of the reducer 200, which is directly connected to the power source (such as an engine or motor) through a coupling and other structures, and is used to transmit the high-speed rotation of the power source to the shaft of the gear set. The intermediate shaft refers to the shaft located in the middle of the reducer 200 and between the input shaft and the gear set, which is used to play a power transfer role to change the torque and speed. One or more gears are arranged on the intermediate shaft, which receive the power from the input shaft through meshing and further transmit the power to the gear set. The gear set is usually located below or beside the intermediate shaft, close to the output end of the reducer 200. The gears in the gear set mesh with the gears on the intermediate shaft and are connected to the output shaft, which further reduce the speed and increase the torque, and output the power to the driving wheels. The front shell bearing seat is used to install the front shell bearing of the reducer 200. The front shell bearing is used to support the front end of the input shaft and is located on the side close to the connection between the input shaft and the power source. Due to the high-speed rotation of the input shaft, the radial and axial loads borne by the bearing are large, and the working temperature is high. The front shell bearing needs to be continuously lubricated to reduce the friction and heat caused by high-speed rotation. The rear housing bearing supports the other end of the input shaft and is usually located inside the reducer 200 housing, close to the gear system. Its rotation speed is relatively lower than that of the front housing bearing, and its lubrication requirement is lower than that of the front housing bearing. It is also necessary to control the amount of lubricating oil to avoid excessive lubrication leading to increased resistance or increased oil temperature. The first oil guide groove 110 and the second oil guide groove 130 refer to structures for guiding lubricating oil to the lubrication areas of the front housing bearing seat and the rear housing bearing seat, respectively. The lubrication area can be a lubricating oil groove on the bearing seat for collecting and distributing lubricating oil, or other structures in the area where the bearing is located, so that the lubricating oil can flow to the bearing and play a lubricating effect. The first oil guide groove 110 and the second oil guide groove 130 both include a bottom surface and oil baffles 140 arranged on both sides of the bottom surface. The oil baffles 140 play a role in blocking the lubricating oil and concentrating the lubricating oil in the first oil guide groove 110 or the second oil guide groove 130 to prevent the received lubricating oil from overflowing. The oil baffle 120 is a protruding structure located between the first oil guide groove 110 and the second oil guide groove 130. The oil baffle 120 protrudes in the direction of the gear set, which is beneficial to blocking the lubricating oil splashed out by the rotation of the gear nearby. The lubricating oil can flow into the first oil guide groove 110 and the second oil guide groove 130 along both sides of the oil baffle 120 under the action of gravity. In order to prevent the received lubricating oil from being lost, oil baffles 140 are also arranged on both sides of the oil baffle 120. The oil baffle 120 of the first oil guide groove 110, the oil baffle 120 and the second oil guide groove 130 can be a continuous structure to minimize the loss of lubricating oil.

[0041] The above-mentioned reducer oil guide device 100 guides the lubricating oil into the bearing seat grooves of the front shell and the rear shell respectively through the first oil guide groove 110 and the second oil guide groove 130, and can use the lubricating oil splashed by the gears to dynamically supplement lubrication, optimize the flow path of the lubricating oil, avoid the accumulation of lubricating oil in non-critical lubrication areas, and enable key components such as bearings in the reducer 200 to be fully lubricated, reduce the friction of the intermediate shaft gear 240, the input shaft gear 230 and related bearings, and improve the transmission efficiency. The oil retaining rib 120 protrudes in the direction of the gear set, and can effectively receive the lubricating oil splashed by the gears and guide it to the first and second oil guide grooves 130, which can reduce the disordered splashing of the lubricating oil and concentrate the lubricating oil to the area that needs lubrication, forming a multi-stage lubrication path, reducing lubricating oil waste, improving the utilization efficiency of lubricating oil, reducing local over-lubrication or under-lubrication, and facilitating the precise distribution of lubricating oil in the automobile reducer 200, improving the lubrication effect, efficiency and reliability, and extending the service life of the reducer 200.

[0042] In one embodiment, the oil retaining rib 120 includes a first inclined surface 121 and a second inclined surface 122 connected to each other, the first inclined surface 121 is connected to the first oil guide groove 110, the second inclined surface 122 is connected to the second oil guide groove 130, and the angle between the first inclined surface 121 and the bottom surface of the first oil guide groove 110 is not equal to the angle between the second inclined surface 122 and the bottom surface of the second oil guide groove 130. Since the first oil guide groove 110 and the second oil guide groove 130 are used to guide the lubricating oil to different areas, the lubrication requirements of different areas are different, and the flow requirements of the lubricating oil are also different. Therefore, setting the first inclined surface 121 and the second inclined surface 122 to different inclination angles can make the flow rate and flow rate of the lubricating oil flowing to both sides different, so that the flow rate and flow rate of the lubricating oil can be reasonably controlled according to actual needs. In actual applications, the inclination degree of the first inclined surface 121 and the second inclined surface 122 can be set according to the actual lubrication requirements, and the inclination angle is not limited in this application. The first inclined surface 121 and the second inclined surface 122 may be plane surfaces or curved surfaces, and the connection between the two may be a rounded structure to facilitate processing and reduce stress concentration.

[0043] In one embodiment, the length of the first oil guide groove 110 is greater than the length of the second oil guide groove 130. Since the first oil guide groove 110 leads to the front shell bearing, a larger amount of lubricating oil is required. When the cross-sectional areas of the first oil guide groove 110 and the second oil guide groove 130 are the same, the first oil guide groove 110 is longer so that it can accommodate more lubricating oil, which is conducive to the continuous flow of lubricating oil, can provide continuous lubrication for the front shell bearing, and can reduce the deposition or flow stagnation of lubricating oil.

[0044] In one embodiment, the first oil guide groove 110 includes a first bending section 111 and a first oil guide section 112, one end of the first bending section 111 is connected to the first oil guide section 112, and the other end is connected to the oil retaining rib 120, and the first bending section 111 is bent relative to the first oil guide section 112 and the oil retaining rib 120 toward the direction of the intermediate shaft of the automobile reducer 200, and is used to collect the lubricating oil splashed by the intermediate shaft gear 240. Since the intermediate shaft is usually arranged in parallel with the input shaft, the first bending section 111 is provided to make the first oil guide groove 110 closer to the intermediate shaft, so that it is easy to collect the lubricating oil splashed or flowing from the intermediate shaft and the gears on the shaft, thereby improving the lubricating oil collection efficiency and lubrication efficiency. In other embodiments, the width of the first bending section 111 can also be increased so that its projection in the vertical direction coincides with the intermediate shaft and the gears on the shaft, so that the lubricating oil on the intermediate shaft can also be effectively collected.

[0045] In one embodiment, the first oil guide groove 110 also includes a first outlet section 113 connected to the first oil guide section 112, and the cross-sectional area of ​​the first outlet section 113 is larger than the cross-sectional area of ​​the first oil guide section 112; the second oil guide groove 130 includes a second oil guide section and a second outlet section 131, and the cross-sectional area of ​​the second outlet section 131 is larger than the cross-sectional area of ​​the second oil guide section. As shown in the figure, the first outlet section 113 and the second outlet section 131 can be bent toward the lubrication area relative to the first oil guide section 112 and the second oil guide section, respectively, and a notch can be formed on the oil baffle 140 on the side close to the lubrication area, thereby further increasing the flow area of ​​the lubricating oil, reducing the flow resistance, and allowing the lubricating oil to flow more smoothly to the lubrication area.

[0046] In one embodiment, the cross-sectional area of ​​the first oil guide section 112 is larger than the cross-sectional area of ​​the second oil guide section. The larger cross-sectional area of ​​the first oil guide section 112 can reduce the friction resistance of the oil when it flows in the pipeline or the groove, thereby reducing the pressure loss, and can reserve enough lubricating oil for the lubrication of the front shell bearing, which can improve the lubrication effect of the front shell bearing.

[0047] In one embodiment, the oil guide device further includes a connector 150, which is disposed below the lubricating oil flow channel and is used to fixedly connect the reducer oil guide device 100 to the reducer 200. The reducer oil guide device 100 is fixedly connected to the reducer 200 through the connector 150, which facilitates maintenance, repair and cleaning of the reducer oil guide device 100.

[0048] In one embodiment, the connector 150 includes a buckle, which is used to connect the front housing bearing seat of the reducer 200. The buckle connection has high assembly stability, and can simplify the installation and disassembly of the oil guide device, making replacement and maintenance easier, which can improve production efficiency, and has high assembly flexibility, small space requirements, and can be installed in any suitable position, saving space and reducing costs.

[0049] In an exemplary embodiment, a reducer 200 is provided, and the reducer 200 includes:

[0050] An input shaft, the input shaft is connected to a power source of the vehicle;

[0051] The front housing bearing 211 is provided at one end of the input shaft connected to the power source and is used to support the front end of the input shaft;

[0052] A front housing bearing seat, used for mounting the front housing bearing 211, and a fixing portion is provided on the front housing bearing seat;

[0053] The rear housing bearing is arranged at the end of the input shaft close to the gear system of the vehicle and is used to support the rear end of the input shaft during the gear meshing process;

[0054] A rear housing bearing 221 seat bearing seat, used for mounting the rear housing bearing 221 seat bearing; and,

[0055] As described in any one of the above embodiments, the reducer oil guiding device 100 is arranged below the input shaft, and the reducer oil guiding device 100 is fixedly connected to the fixing part for guiding the lubricating oil to the front housing bearing 211 and the rear housing bearing 221 seat bearings.

[0056] The reducer 200 includes a front housing 210 and a rear housing bearing 221 seat, which are used to protect the internal parts of the reducer 200 and support the shaft system structure. The front housing 210 and the rear housing bearing 221 seat can be made of cast iron, aluminum alloy or steel. The front housing 210 and the rear housing bearing 221 seat are connected by welding or threaded connection, and a sealing gasket or a sealing rubber layer can be arranged between the two to achieve sealing. The front housing bearing seat is arranged on the front housing 210, and the rear housing bearing 221 seat is arranged on the rear housing bearing 221 seat. The fixing part can be any structure on the reducer 200 that can be used to fix the oil guide device.

[0057] In an exemplary embodiment, a car is provided, the car includes a reducer 200 as described in any of the above embodiments, and the reducer 200 is used to adjust the torque and speed output by the power source of the car. The power source of the car can be a gasoline engine, a diesel engine, an electric motor, natural gas or a hybrid power source.

[0058] In an exemplary embodiment, the present invention proposes an oil guide device 100 for a new energy vehicle reducer. By combining splash lubrication with an oil guide structure, the oil guide device is fixed to the reducer 200 housing by a buckle. By selecting a suitable arrangement angle, the oil guide device can catch the lubricating oil splashed by the gears and the lubricating oil flowing along the housing oil retaining rib 120 and guide them to the two bearing seats of the front and rear shells, and provide lubrication for the front and rear bearings at the same time. The oil guide device is made of plastic material, which is light, easy to install, occupies little space, and can effectively improve the lubrication effect. The oil guide device can realize two-way oil connection up and down to improve lubrication efficiency. The oil guide device is fixed to the fixed point on the front housing bearing seat by snaps. The left side of the oil guide device is close to the smooth oil baffle 120 with an arc on the housing. The oil baffle 120 can block the oil splashed out by the rotation of the gear and guide the oil downward. The oil guide device can catch the lubricating oil flowing down along the oil baffle 120 from above. Because the oil baffle plate 140 on this side is curved toward the inside of the oil guide device, it can also catch the lubricating oil splashed out from the intermediate shaft gear 240 below the oil guide device, realizing up and down two-way oil collection, greatly improving the oil collection efficiency and increasing the oil collection amount. The right side of the oil guide device extends to the input shaft close to the input shaft gear 230, which can catch the lubricating oil splashed out by the input shaft gear 230, increase the oil collection amount, and prevent the oil from flying out again after being received through the oil baffle plates 140 on both sides. Finally, the oil received on both sides will enter the oil groove and flow along the inclination angle in the groove, along the bearing outlet openings at both ends, and into the bearing seat grooves of the front shell and the rear shell respectively, and finally lubricate the front shell bearing 211 and the rear shell bearing 221. The amount of oil flowing to the front and rear shell bearings is distributed by adjusting the inclination angle. The snap position of the oil guide device connecting the front shell 210 is located below the center point of the bearing in the posture of the whole vehicle, which is more convenient for oil collection and simultaneously increases the oil distribution of the input shaft rear shell bearing.

[0059] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A reducer oil guide device, characterized in that: include: A first oil guide groove is provided at one end of the oil guide device close to the intermediate shaft gear of the automobile reducer, and is used to guide the lubricating oil into the lubricating area of ​​the front housing bearing seat of the automobile reducer; A second oil guide groove is provided on a side of the oil guide device close to the input shaft gear of the automobile reducer, and is used to collect the lubricating oil splashed by the input shaft gear and guide the lubricating oil into the lubricating area of ​​the rear housing bearing seat of the automobile reducer; An oil-blocking rib is arranged between the first oil-conducting groove and the second oil-conducting groove and is connected to the first oil-conducting groove and the second oil-conducting groove. The oil-blocking rib protrudes toward the gear set of the automobile reducer and is used to collect the lubricating oil splashed by the gear set of the automobile reducer and guide the lubricating oil into the first oil-conducting groove and the second oil-conducting groove.

2. The reducer oil guide device according to claim 1, characterized in that: The oil-blocking rib includes a first inclined surface and a second inclined surface connected to each other, the first inclined surface is connected to the first oil guiding groove, the second inclined surface is connected to the second oil guiding groove, and the angle between the first inclined surface and the bottom surface of the first oil guiding groove is not equal to the angle between the second inclined surface and the bottom surface of the second oil guiding groove.

3. The reducer oil guide device according to claim 1, characterized in that: The length of the first oil guiding groove is greater than the length of the second oil guiding groove.

4. The reducer oil guide device according to claim 1, characterized in that: The first oil guide groove includes a first bending section and a first oil guide section, one end of the first bending section is connected to the first oil guide section, and the other end is connected to the oil baffle rib, and the first bending section is bent toward the intermediate shaft of the automobile reducer relative to the first oil guide section and the oil baffle rib, and is used to collect lubricating oil splashed by the intermediate shaft gear.

5. The reducer oil guide device according to claim 4, characterized in that: The first oil guiding groove also includes a first outlet section connected to the first oil guiding section, and the cross-sectional area of ​​the first outlet section is larger than the cross-sectional area of ​​the first oil guiding section; the second oil guiding groove includes a second oil guiding section and a second outlet section, and the cross-sectional area of ​​the second outlet section is larger than the cross-sectional area of ​​the second oil guiding section.

6. The reducer oil guide device according to claim 5, characterized in that: A cross-sectional area of ​​the first oil guiding section is greater than a cross-sectional area of ​​the second oil guiding section.

7. The reducer oil guide device according to claim 1, characterized in that: The oil guide device also includes a connecting piece, which is arranged below the lubricating oil flow channel and is used to fixedly connect the reducer oil guide device with the reducer.

8. The reducer oil guide device according to claim 1, characterized in that: The connecting piece includes a buckle, and the buckle is used to connect the front housing bearing seat of the reducer.

9. A reducer, characterized in that: The reducer comprises: An input shaft connected to a power source of the automobile; A front housing bearing, provided at one end of the input shaft connected to the power source, for supporting the front end of the input shaft; A front housing bearing seat, used for mounting the front housing bearing, wherein a fixing portion is provided on the front housing bearing seat; a rear housing bearing, disposed at an end of the input shaft close to the gear system of the vehicle, for supporting the rear end of the input shaft during gear meshing; a rear housing bearing seat, used for mounting the rear housing bearing; and, The reducer oil guiding device according to any one of claims 1 to 8, wherein the reducer oil guiding device is arranged below the input shaft, and the reducer oil guiding device is fixedly connected to the fixing portion, and is used to guide lubricating oil to the front housing bearing and the rear housing bearing.

10. An automobile, characterized in that: The automobile comprises the reducer as claimed in claim 9, and the reducer is used to adjust the torque and speed output by the power source of the automobile.

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