CN220668337U - Transmission case lubricating structure and car - Google Patents

Abstract

The application relates to a transmission box lubrication structure and an automobile, wherein the transmission box lubrication structure comprises a box main body, a first oil guide rib, a second oil guide rib and an oil guide groove, wherein the box main body is used for installing gears; the first oil guide ribs are arranged on the box body, extend along the axial direction of the gear, and are at least partially arranged opposite to the outer peripheral surface of the gear; the second oil guide rib is arranged on the box body and comprises an arc-shaped rib plate and a flow guide rib plate, the arc-shaped rib plate extends along the circumferential direction of the gear, and one end of the arc-shaped rib plate is connected with the flow guide rib plate; the oil guiding groove is arranged on the box body and is respectively connected with the first oil guiding rib and the guiding rib plate and used for guiding lubricating oil to the part to be lubricated. The application can block and guide a large amount of oil that the gear circumference splashes through first oil guide rib and second oil guide rib, and a large amount of oil gets into the oil guide groove through first oil guide rib and water conservancy diversion gusset, can effectively promote lubricated effect.

Description

Transmission case lubricating structure and car

Technical Field

The application relates to the technical field of automobile transmission system lubrication, in particular to a transmission box lubrication structure and an automobile.

Background

In an automotive transmission system, components such as a transmission, a differential bearing, a driving shaft and the like are generally included, and if components such as the differential bearing, the driving shaft and the like in a transmission box body cannot be lubricated during the running process of an automobile, overheat of the components such as the differential bearing, the driving shaft and the like can occur, so that the service life of the components is affected.

In the prior art, the lubricating oil at the bottom of the gearbox body is stirred through the gear pair inside the gearbox body, so that the lubricating oil flows down along the inner wall of the gearbox body or the oil collecting ribs on the inner wall, the existing oil collecting rib structure is usually arranged on one side of the axial direction of the gear and opposite to the end face of the gear, only a small amount of oil which is splashed onto the inner wall of the gearbox body can be guided, and the large amount of oil which is splashed in the circumferential direction of the gear during rotation can not be blocked and collected, so that the oil collecting and guiding effects of the existing oil collecting structure are poor, and less oil enters into parts to be lubricated, so that effective lubrication can not be realized.

Disclosure of Invention

One of the purposes of the application is to provide a lubrication structure of a gearbox body, so as to solve the problems that in the prior art, a grease collecting rib structure in the gearbox body can not block and collect a large amount of splashed oil in the circumferential direction of a gear during rotation, and the grease collecting and guiding effects are poor; the second purpose is to provide an automobile.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows:

a transmission case lubrication structure comprising:

the box body is used for installing gears;

the first oil guide ribs are arranged on the box body, extend along the axial direction of the gear, and are at least partially arranged opposite to the outer peripheral surface of the gear;

the second oil guide rib is arranged on the box body and comprises an arc rib plate and a flow guide rib plate, the arc rib plate extends along the circumferential direction of the gear, and one end of the arc rib plate is connected with the flow guide rib plate;

the oil guiding groove is arranged on the box body and is respectively connected with the first oil guiding rib and the guiding rib plate and used for guiding lubricating oil to the part to be lubricated.

According to the technical means, as at least part of the first oil guide ribs are arranged opposite to the outer peripheral surface of the gear, a large amount of oil splashed in the circumferential direction of the gear can be blocked and guided, the first oil guide ribs extend along the axial direction of the gear, when the oil flows along the first oil guide ribs, part of the oil falls down in the middle of flowing due to the action of gravity, and the lubricating oil is sprayed on other parts coaxially arranged with the gear to lubricate the other parts; meanwhile, lubricating oil is also attached to the outer peripheral surfaces of other parts, in the process of coaxial rotation of the gear, oil splashed by centrifugal action on the outer peripheries of other parts can be blocked and guided through the arc-shaped rib plates, a large amount of oil enters the oil guide groove through the first oil guide rib and the flow guide rib plates, and the oil guide groove guides a large amount of lubricating oil to the part to be lubricated, so that the lubricating effect can be effectively improved.

Further, the first oil guide rib is positioned at the top of the box body; the first oil guide rib is provided with a connecting rib plate which is inclined downwards, and the bottom end of the connecting rib plate is connected with the oil guide groove.

According to the technical means, oil on the first oil guide rib can smoothly enter the oil guide groove along the connecting rib plate under the action of gravity.

Further, the flow guiding rib plate is connected with the top end of the arc-shaped rib plate, and the flow guiding rib plate is positioned above the oil guiding groove.

According to the technical means, oil on the guide rib plate can smoothly enter the oil guide groove under the action of gravity.

Further, the box body is also provided with a bearing seat and an oil collecting baffle, the bearing seat is connected with the oil collecting baffle to form a containing cavity for installing a differential bearing, and the bearing seat is connected with the oil guide groove; and a first preset gap is arranged between the oil collecting baffle plate and the end face of the differential bearing along the axial direction of the differential bearing.

According to the technical means, the oil passing clearance can be reserved for the axial direction of the oil collecting baffle plate, so that lubricating oil can smoothly enter the space between the axial clearance of the differential bearing and the oil collecting baffle plate, and further enter the space between the roller of the differential bearing and the roller path for lubrication.

Further, the oil collecting baffle plate is provided with a mounting hole for inserting the differential case, and a second preset gap is arranged between the inner peripheral surface of the mounting hole and the outer peripheral surface of the differential case along the radial direction of the mounting hole.

According to the technical means, the oil passing gap can be reserved for the radial direction of the oil collecting baffle plate, so that lubricating oil can flow out of the second preset gap between the differential shell and the mounting hole, and other matched parts can be lubricated conveniently.

Further, the oil collecting baffle plate comprises a notch part, and the oil guide groove penetrates through the notch part.

According to the technical means, the lubricating oil in the oil guide groove can be guided to one side of the oil collecting baffle plate, which is far away from the differential bearing, so that other matched parts are lubricated.

Further, the transmission case lubricating structure further comprises a differential oil seal and a driving shaft, wherein the differential oil seal is circumferentially arranged along the periphery of the driving shaft; the driving shaft is inserted into the differential shell, the differential oil seal is arranged opposite to the oil collecting baffle along the axial direction of the driving shaft, and an oil collecting space is formed among the oil collecting baffle, the differential oil seal, the driving shaft and the differential shell.

According to the technical means, a part of lubricating oil on the inner wall of the transmission case body flows into the second preset gap between the oil collecting baffle plate and the differential case along the oil guiding groove, then flows into the oil collecting space formed among the oil collecting baffle plate, the differential oil seal, the driving shaft and the differential case through the second preset gap, and another part of lubricating oil flows into the gap between the oil collecting baffle plate and the differential oil seal and then flows into the oil collecting space, so that a large amount of lubricating oil is collected in the oil collecting space for lubricating the differential case and the driving shaft.

Further, the oil collecting baffle is provided with an oil drain port, and the oil drain port is communicated with the oil collecting space.

According to the technical means, quick oil drainage can be realized after the automobile stops running, and residual oil in the oil collecting space is reduced.

Further, the oil drain port is provided opposite to the differential bearing in the radial direction of the differential bearing.

According to the technical means, when the oil flowing out of the oil drain port flows through the differential bearing, the differential bearing can be lubricated again in the oil drain process.

An automobile comprises a transmission, wherein the transmission is provided with the transmission box body lubricating structure.

According to the technical means, when the transmission case lubricating structure is applied to an automobile transmission, effective lubrication of a differential bearing, a differential shell and a driving shaft in the transmission can be realized, the service life of the transmission can be prolonged, and the service performance of the automobile is further improved.

The beneficial effects of this application:

(1) According to the oil guiding device, the first oil guiding ribs, the second oil guiding ribs and the oil guiding groove are arranged in the box body, splashed oil is blocked, guided and collected through the first oil guiding ribs and the second oil guiding ribs, and collected to the oil guiding groove to realize the oil guiding function of the gearbox body;

(2) According to the oil collecting device, the oil collecting space is formed by the oil collecting baffle, the differential mechanism oil seal, the driving shaft and the differential mechanism shell, redundant lubricating oil can be collected in the oil collecting space under the condition that the lubrication of the differential mechanism bearing is met, the oil collecting function of the transmission box body can be realized, meanwhile, the differential mechanism shell and the driving shaft can be fully lubricated by the lubricating oil in the oil collecting space, and the service lives of the differential mechanism shell and the driving shaft are prolonged;

(3) This application sets up the oil drain mouth with collection oil space intercommunication on the collection oil baffle, when the car stopped the operation, the fluid in the collection oil space was returned to box main part bottom from the oil drain mouth, can realize the oil drainage function of derailleur box, reduces the inside residual oil in collection oil space.

Drawings

FIG. 1 is a cross-sectional view of a transmission case lubrication structure provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a lubrication structure for a transmission case according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram II of a lubrication structure of a transmission case provided in an embodiment of the present application;

FIG. 4 is a front view of a transmission case lubrication structure provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of the lubrication structure and gear positions of a transmission case according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of an oil collecting space according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a first preset gap and a second preset gap according to an embodiment of the present application;

fig. 8 is a schematic diagram of a drain port according to an embodiment of the present disclosure.

Wherein, 1-a box body; 11-bearing seats; 12-an oil collecting baffle plate; 121-mounting holes; 122-notch portion; 123-an oil drain port; 2-gear; 3-a first oil guide rib; 31-connecting rib plates; 4-a second oil rib; 41-arc rib plates; 42-diversion rib plates; 5-an oil guide groove; 6-differential bearings; 7-a differential housing; 8-a differential oil seal; 9-drive shaft.

Detailed Description

Further advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure in the present specification, by describing embodiments of the present application with reference to the accompanying drawings and preferred examples. The present application may be embodied or carried out in other specific embodiments, and the details of the present application may be modified or changed from various points of view and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation to the scope of the present application.

It should be noted that, the illustrations provided in the following embodiments merely illustrate the basic concepts of the application by way of illustration, and only the components related to the application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.

The embodiment of the application provides a transmission case lubrication structure, please refer to fig. 1 to 8, including: the oil guide device comprises a box body 1, a first oil guide rib 3, a second oil guide rib 4 and an oil guide groove 5, wherein the box body 1 is used for installing a gear 2; specifically, the gear 2 is a main reduction gear, the gear 2 can rotate in the box body 1, splash lubrication is realized by stirring lubricating oil at the bottom of the box body 1 through the gear 2, and a large amount of lubricating oil splashes onto the inner wall of the box body 1 under the stirring action of the gear 2; the first oil guide ribs 3 are arranged on the inner wall of the box body 1, the first oil guide ribs 3 extend along the axial direction of the gear 2, at least part of the first oil guide ribs 3 are arranged opposite to the periphery of the gear 2, when the gear 2 rotates, the first oil guide ribs 3 can block oil outside the gear 2 by Zhou Feijian, and the blocked oil can move along the axial direction of the gear 2 along the first oil guide ribs 3 until the oil falls down due to the action of gravity, so that lubrication of parts (such as a differential case 7 and the like) arranged in the axial direction of the gear 2 is realized; the second oil guide rib 4 is arranged on the inner wall of the box body 1, the second oil guide rib 4 comprises an arc rib plate 41 and a flow guide rib plate 42, the arc rib plate 41 is arranged along the circumferential extension of the gear 2 and is used for forming a surrounding together with the inner wall of the box body 1 on the gear 2, and the arc rib plate 41 and the inner wall of the box body 1 form an arc lubrication channel on one side close to the gear 2; when the gear 2 and other parts distributed along the axial direction rotate, the arc rib plates 41 can block and guide oil splashed by other parts distributed along the axial direction, one end of each arc rib plate 41 is connected with the corresponding flow guide rib plate 42, and when the rotation speed of the gear 2 is high, the oil in the lubricating channel can be guided through the corresponding flow guide rib plate 42; the oil guiding groove 5 is arranged on the inner wall of the box body 1, and the oil guiding groove 5 is respectively connected with the first oil guiding rib 3 and the guiding rib plate 42 and used for guiding lubricating oil to the part to be lubricated. Specifically, the end of the first oil guiding rib 3 extends to the inlet of the oil guiding groove 5, the end of the guiding rib plate 42 extends to the inlet of the oil guiding groove 5, the oil liquid which is blocked and collected by the first oil guiding rib 3 and the second oil guiding rib 4 flows into the part to be lubricated through the oil guiding groove 5, the first oil guiding rib 3 and the second oil guiding rib 4 block and guide the oil liquid on the circumference of the gear 2 and the inner wall of the box body 1, so that a large amount of oil liquid flows into the oil guiding groove 5, the oil liquid amount which enters the part to be lubricated is improved, and the lubrication effect can be effectively improved.

In the process of splash lubrication, as the gear 2 is firstly contacted with the lubricating oil at the bottom of the box body 1, and the amount of the oil splashed circumferentially by the gear 2 is large, the oil splashed circumferentially by the gear 2 is blocked and guided by the first oil guide ribs 3, when the oil flows along the first oil guide ribs 3, part of the oil falls down in the middle of flowing due to the action of gravity, and the lubricating oil is scattered on other parts coaxially arranged with the gear 2 to lubricate the other parts; meanwhile, lubricating oil is also attached to the outer peripheral surfaces of other parts, in the process of coaxial rotation of the gear 2, oil splashed by centrifugal action on the outer peripheries of other parts can be blocked and guided through the arc-shaped rib plates 41, part of the oil enters the oil guide groove 5 through the flow guide rib plates 42, the oil quantity of the oil guide groove 5 is further increased, and the oil guide groove 5 guides a large amount of lubricating oil to the parts to be lubricated, so that the lubricating effect can be effectively improved.

In order to make the oil on the first oil guiding rib 3 smoothly enter the oil guiding groove 5, in some embodiments of the present application, please refer to fig. 1 and 2, the first oil guiding rib 3 is located at the top of the inner wall of the box body 1, the first oil guiding rib 3 has a connection rib plate 31 inclined downwards, and the bottom end of the connection rib plate 31 is connected with the oil guiding groove 5, so that the oil on the first oil guiding rib 3 can smoothly enter the oil guiding groove 5 along the connection rib plate 31 under the action of gravity.

As a preferred embodiment of the present application, referring to fig. 1, the initial section of the first oil guiding rib 3 is located above the outer peripheral surface of the gear 2, and is disposed opposite to the outer peripheral surface of the gear 2, then the first oil guiding rib 3 extends downward to the right end surface of the gear 2, and is connected to the oil guiding groove 5 through the connection rib plate 31 that inclines downward, so that the oil on the first oil guiding rib 3 moves towards the lower right, and the oil guiding effect of the first oil guiding rib 3 and the oil guiding groove 5 is achieved.

In order to avoid interference between the second oil guiding rib 4 and the first oil guiding rib 3, the second oil guiding rib 4 is arranged on one side of the inner wall of the box body 1, and in order to guide the collected oil liquid blocked by the second oil guiding rib 4 into the oil guiding groove 5, please refer to fig. 2 to 4, in some embodiments of the present application, the guiding rib plate 42 is connected with the top end of the arc rib plate 41, and the guiding rib plate 42 is located above the oil guiding groove 5, so that the oil liquid on the guiding rib plate 42 smoothly enters the oil guiding groove 5 through the gravity action.

In order to lubricate the differential bearing 6 in the transmission case through the transmission case lubrication structure provided in the embodiments of the present application, in some embodiments of the present application, please refer to fig. 1, 2 and 7, the case body 1 further has a bearing seat 11 and an oil collecting baffle 12, the bearing seat 11 is connected with the oil collecting baffle 12 to form a containing cavity for installing the differential bearing 6, the bearing seat 11 is connected with the oil guiding groove 5, so that lubricating oil flows into the bearing seat 11 through the oil guiding groove 5, and lubrication is performed between the roller and the raceway entering the differential bearing 6. The differential bearing 6 and the gear 2 are coaxially arranged, a first preset gap L1 is formed between the oil collecting baffle 12 and the differential bearing 6 along the axial direction of the differential bearing 6, and an oil passing gap is reserved for the axial direction of the oil collecting baffle 12, so that lubricating oil can smoothly enter between the axial gaps of the differential bearing 6 and the oil collecting baffle 12, and then enter between the rollers and the roller paths of the differential bearing 6 for lubrication.

As a preferred embodiment of the present application, the notch of the oil guiding groove 5 is located at the top of the accommodation chamber of the differential bearing 6, so that the lubricating oil in the oil guiding groove 5 enters the differential bearing 6 under the action of gravity.

In the transmission system, the differential bearing 6 is generally disposed around the periphery of the differential housing 7, in order to implement the installation of the differential housing 7, in some embodiments of the present application, referring to fig. 1, 6 and 7, the oil collecting baffle 12 has a mounting hole 121 for inserting the differential housing 7, and along the radial direction of the mounting hole 121, a second preset gap L2 is formed between the inner wall of the mounting hole 121 and the outer peripheral surface of the differential housing 7, and an oil passing gap is reserved for the radial direction of the oil collecting baffle 12, so that lubricating oil can flow out from the second preset gap L2 between the differential housing 7 and the mounting hole 121, so as to facilitate lubrication of other mating components.

As a preferred embodiment of the present application, the arrangement of the first preset gap L1 and the second preset gap L2 is required to ensure that the lubrication of the differential bearing 6 is sufficient, so that the flow rate of the lubricating oil flowing through the differential bearing 6 reaches 0.1L/min, and also ensure that the differential housing 7 does not interfere with the oil collecting baffle 12 in the radial direction and the axial direction when the differential bearing 6 performs radial play and axial play within a preset range in a limit state. Preferably, the value of the first preset gap L1 ranges from 0.3mm to 0.8mm, and the value of the second preset gap L2 ranges from 0.1mm to 0.5mm.

In order to enable the excess oil in the oil guide groove 5 to pass through the oil collecting baffle plate 12 to lubricate other components under the condition that the lubrication of the differential bearing 6 is satisfied, in some embodiments of the present application, referring to fig. 3, the oil collecting baffle plate 12 includes a notch portion 122, and the oil guide groove 5 is disposed through the notch portion 122, so that the lubricating oil in the oil guide groove 5 can be guided to the side of the oil collecting baffle plate 12 away from the differential bearing 6 to lubricate other components.

In some embodiments of the present application, referring to fig. 1, 6, 7 and 8, the transmission case lubrication structure further includes a differential oil seal 8 and a driving shaft 9, where the differential oil seal 8 is disposed around the periphery of the driving shaft 9; the drive shaft 9 is inserted into the differential case 7, the differential bearing 6 is circumferentially arranged along the outer periphery of the differential case 7, the differential oil seal 8 is oppositely arranged with the oil collecting baffle 12 along the axial direction of the drive shaft 9, and an oil collecting space is formed among the oil collecting baffle 12, the differential oil seal 8, the drive shaft 9 and the differential case 7. Part of lubricating oil on the inner wall of the transmission case body flows into a second preset gap L2 between the oil collecting baffle plate 12 and the differential case 7 along the oil guide groove 5, then flows into an oil collecting space formed among the oil collecting baffle plate 12, the differential oil seal 8, the driving shaft 9 and the differential case 7 through the second preset gap L2, and the other part of lubricating oil flows between the oil collecting baffle plate 12 and the differential oil seal 8 from the notch part 122 and then enters the oil collecting space for lubricating the differential case 7 and the driving shaft 9, so that the transmission lubricating structure can lubricate the differential bearing 6 and the differential case 7, simultaneously, can lubricate the driving shaft 9, and can effectively prolong the service lives of the components such as the differential bearing 6, the differential case 7 and the driving shaft 9.

When the automobile runs at high speed, more lubricating oil is collected in the oil collecting space, so that the differential mechanism shell 7 and the driving shaft 9 can be effectively lubricated, after the automobile stops running, the lubricating oil in the oil collecting space needs to flow back to the bottom of the transmission box body 1 rapidly, and residual oil in the oil collecting space is reduced.

In order to solve the above-mentioned problem, in some embodiments of the present application, referring to fig. 3, 4 and 8, the oil collecting baffle 12 has an oil drain port 123, where the oil drain port 123 is communicated with the oil collecting space, and when the automobile stops running, the oil collected in the oil collecting space can flow out of the oil collecting space through the oil drain port 123, so as to reduce residual oil in the oil collecting space, and realize a quick oil drain function of the transmission case.

In order to improve the oil drainage efficiency, the oil drainage port 123 is preferably arranged at the bottom of the oil collection baffle plate 12, and after the automobile stops running, the oil in the oil collection space is collected at the bottom of the oil collection baffle plate 12 under the action of gravity, and quick oil drainage is realized through the oil drainage port 123.

Referring to fig. 8, when oil is drained through the oil drain port 123, oil flows from the oil drain port 123 into a second preset gap L2 between the oil collecting baffle 12 and the differential bearing 6, and along the radial direction of the differential bearing 6, the oil drain port 123 is opposite to the differential bearing 6, so that the differential bearing 6 can be lubricated again during the oil draining process when the oil flowing out of the oil drain port 123 flows through the differential bearing 6.

In order to facilitate the processing of the lubrication structure of the transmission case, the first oil guide rib 3, the second oil guide rib 4, the oil guide groove 5, the bearing seat 11 and the oil collecting baffle 12 are preferably integrally arranged on the case body 1 through a casting process, so that complex processing and assembling processes are avoided, and the manufacturing cost of the lubrication structure of the transmission case is reduced.

The embodiment of the application also provides an automobile, which comprises a transmission, wherein the transmission is provided with the transmission box body lubricating structure in any one of the embodiments.

As a preferred embodiment of the application, the transmission is a double-motor transmission, and the transmission box lubricating structure is applied to the double-motor transmission, so that effective lubrication of the differential bearing 6, the differential housing 7 and the driving shaft 9 in the double-motor transmission can be realized, the service life of the double-motor transmission can be prolonged, and the service performance of an automobile can be further improved.

Referring to fig. 1-8, in some embodiments of the present application, the lubrication workflow of the transmission case lubrication structure is as follows:

step one: starting the automobile, rotating the gear 2 in the box body 1, stirring lubricating oil at the bottom of the box body 1, sputtering the lubricating oil onto the inner wall of the box body 1, the first oil guide rib 3 and the second oil guide rib 4, and performing splash lubrication in the box body 1;

step two: the oil is blocked, guided and collected by the first oil guide rib 3 and the second oil guide rib 4 and is collected to the oil guide groove 5, so that the oil guide function of the transmission case is realized; under the action of gravity, part of oil in the oil guide groove 5 falls onto the differential bearing 6 of the bearing seat 11, enters the differential bearing 6 to lubricate the roller path and the roller, and part of oil passes through the oil collecting baffle plate 12 and enters the oil collecting space to realize the oil collecting function of the transmission case body and is used for lubricating the differential case body 7 and the driving shaft 9;

step three: when the automobile stops running, oil returns to the bottom of the box body 1 under the action of gravity, and oil in the oil collecting space flows through the differential bearing 6 through the oil drain port 123 and then returns to the bottom of the box body 1, so that the oil drain function of the gearbox box is realized.

According to the transmission case lubricating structure, the first oil guide rib 3, the second oil guide rib 4 and the oil guide groove 5 are arranged in the transmission case lubricating structure, so that lubricating oil splashed in the circumferential direction of the gear 2 and lubricating oil on the inner wall of the case main body 1 are blocked, guided and guided; the lubricating oil is stored through an oil collecting space formed among the oil collecting baffle plate 12, the differential oil seal 8, the driving shaft 9 and the differential shell 7; realize quick oil drain through the oil drain port 123 on the oil collecting baffle 12 for the derailleur box lubricating structure of this application has concurrently and leads oily, oil collecting and the function of draining, has simple structure compactness, is convenient for make, advantage such as sexual valence relative altitude.

The above embodiments are merely preferred embodiments for the purpose of fully explaining the present application, and the scope of the present application is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present application, and are intended to be within the scope of the present application.

Claims (10)

1. A transmission case lubrication structure, comprising:

the box body (1), the box body (1) is used for installing the gear (2);

the first oil guide ribs (3) are arranged on the box body (1), the first oil guide ribs (3) extend along the axial direction of the gear (2), and at least part of the first oil guide ribs (3) are arranged opposite to the outer peripheral surface of the gear (2);

the second oil guide rib (4), the second oil guide rib (4) is arranged on the box body (1), the second oil guide rib (4) comprises an arc rib plate (41) and a flow guide rib plate (42), the arc rib plate (41) extends along the circumference of the gear (2), and one end of the arc rib plate (41) is connected with the flow guide rib plate (42);

the oil guide groove (5), the oil guide groove (5) set up in on the box main part (1), oil guide groove (5) respectively with first oil guide rib (3) and water conservancy diversion gusset (42) are connected for with lubricating oil water conservancy diversion to waiting lubricated part department.

2. The transmission case lubrication structure according to claim 1, wherein: the first oil guide rib (3) is positioned at the top of the box body (1); the first oil guide rib (3) is provided with a connecting rib plate (31) which is inclined downwards, and the bottom end of the connecting rib plate (31) is connected with the oil guide groove (5).

3. The transmission case lubrication structure according to claim 2, wherein: the guide rib plates (42) are connected with the top ends of the arc rib plates (41), and the guide rib plates (42) are located above the oil guide grooves (5).

4. The transmission case lubrication structure according to claim 1, wherein: the box body (1) is further provided with a bearing seat (11) and an oil collecting baffle plate (12), the bearing seat (11) is connected with the oil collecting baffle plate (12) to form a containing cavity for installing a differential bearing (6), and the bearing seat (11) is connected with the oil guide groove (5); in the axial direction of the differential bearing (6), a first preset gap is arranged between the oil collecting baffle plate (12) and the end face of the differential bearing (6).

5. The transmission case lubrication structure according to claim 4, wherein the oil collecting baffle (12) has a mounting hole (121) for inserting a differential case (7), and a second preset gap is provided between an inner peripheral surface of the mounting hole (121) and an outer peripheral surface of the differential case (7) in a radial direction of the mounting hole (121).

6. The transmission case lubrication structure according to claim 4, wherein the oil collecting baffle (12) includes a notch portion (122), and the oil guide groove (5) is provided through the notch portion (122).

7. The transmission case lubrication structure according to claim 5, further comprising a differential oil seal (8) and a drive shaft (9), the differential oil seal (8) being circumferentially disposed along an outer periphery of the drive shaft (9); the driving shaft (9) is inserted into the differential mechanism shell (7), the differential mechanism oil seal (8) is arranged opposite to the oil collecting baffle plate (12) along the axial direction of the driving shaft (9), and an oil collecting space is formed among the oil collecting baffle plate (12), the differential mechanism oil seal (8), the driving shaft (9) and the differential mechanism shell (7).

8. The transmission case lubrication structure according to claim 7, wherein the oil collecting baffle (12) has an oil drain port (123) thereon, and the oil drain port (123) communicates with the oil collecting space.

9. Transmission case lubrication structure according to claim 8, characterized in that the oil drain port (123) is provided opposite to the differential bearing (6) in a radial direction of the differential bearing (6).

10. An automobile comprising a transmission, characterized in that: the transmission is provided with a transmission case lubrication structure as claimed in any one of claims 1 to 9.