CN115405682B - Rear-drive type electric automobile rear axle power transmission structure - Google Patents

Abstract

The invention discloses a rear axle power transmission structure of a rear-drive type electric automobile, which relates to the technical field of automobile power transmission and comprises a body and a replacement mechanism, wherein the replacement mechanism is arranged below the body, one side of the body is provided with a transmission mechanism, the other side of the body is provided with an oil conveying mechanism, the oil conveying mechanism is connected with the replacement mechanism, an ejection mechanism is arranged in the body, a connecting mechanism is arranged below the ejection mechanism and arranged at one side of the oil conveying mechanism, the body comprises a transmission shell, one side of the transmission shell can be provided with a rotating shaft, and a transmission connecting shaft penetrates through the transmission shell. This back drive formula electric automobile rear axle power transmission structure the radiating effect and the lubricated effect that rear axle oil provided when using are better, can replace automatically after rear axle oil uses a certain time simultaneously, need not artificial replacement.

Description

Rear-drive type electric automobile rear axle power transmission structure

Technical Field

The invention relates to the technical field of automobile power transmission, in particular to a rear axle power transmission structure of a rear-drive electric automobile.

Background

The rear axle is a rear driving shaft component for transmitting the power of the vehicle. The rear axle consists of two half-bridges, can implement half-bridge differential motion, is a driving axle, and plays a role in driving, reducing speed and differentiating besides a bearing function.

The existing rear axle mechanism still has some problems when in use;

when the rear axle is a drive axle, a plurality of gears are arranged in the rear axle, although rear axle oil is arranged in the rear axle, the rear axle is influenced by the structure of the rear axle, so that the rear axle oil cannot effectively dissipate heat of the gears in the rear axle after the rear axle is used for a long time, and when the gears are meshed at a high temperature for a long time, the gears can deform to a certain degree, so that the rear axle is normally used;

although then be provided with the rear axle oil in the bridge, the rear axle oil can be for the artificial replacement simultaneously, but the rear axle oil does not have an accurate replacement standard, thereby it is the replacement to need for people to feel oneself, probably lead to the rear axle oil live time overlength this moment, when the rear axle oil surpassed live time, the rear axle oil can't play a good lubrication action to the gear this moment, lack lubricated back between the gear, the dry meshing of gear can take place, long-time dry meshing can lead to the gear breakage, thereby influence navigating mate's safety, just begin the replacement and probably lead to the waste of rear axle oil after the rear axle oil does not reach the live time.

Disclosure of Invention

The embodiment of the invention provides a rear axle power transmission structure of a rear-drive type electric automobile, which aims to solve the technical problem in the prior art.

The embodiment of the invention adopts the following technical scheme: the utility model provides a rear-drive electric automobile rear axle power transmission structure, includes the body, still includes replacement mechanism, replacement mechanism sets up the below at the body, one side of body is provided with drive mechanism, other one side of body is provided with oil transportation mechanism, and oil transportation mechanism is connected with replacement mechanism, this internal ejection mechanism that is provided with, the ejection mechanism below is provided with coupling mechanism, coupling mechanism sets up in oil transportation mechanism one side, the body includes the transmission casing, transmission casing one side is provided with the axis of rotation, it is provided with the transmission connecting axle to run through in the transmission casing.

Further, replacement mechanism is including replacing the casing, the replacement casing sets up in the below of transmission casing, and has set gradually adjustable partition and fixed bolster in the replacement casing, be provided with the third cavity between the left side wall of replacement casing and the adjustable partition, be provided with the second cavity between adjustable partition and the fixed bolster, be provided with first cavity between the right side wall of fixed bolster and replacement casing, the activity is provided with according to the clamp plate in the first cavity, be provided with the fly leaf on the fixed bolster, one side that the adjustable partition was towards the fixed bolster is provided with the roof.

Furthermore, the surface of the top plate is designed to be an inclined plane, the width of the top plate is smaller than that of the movable plate, and the contact surface of the movable plate and the top plate is also designed to be an inclined plane.

Further, drive mechanism includes first connecting axle, first connecting axle runs through the setting in the transmission casing, and one of them one end of first connecting axle is provided with first transmission shaft, first transmission shaft is located the outside of transmission casing, and first transmission shaft is located the below of axis of rotation, be provided with first drive belt between first transmission shaft and the axis of rotation, first transmission shaft is provided with the connecting rod outward, the lower extreme and the pressing board of connecting rod are connected, the other one end of first connecting axle is provided with the second transmission shaft, and the second transmission shaft is located the transmission casing, the below of second transmission shaft is provided with the second connecting axle, be provided with the second drive belt between second connecting axle and the second transmission shaft, be provided with a plurality of extrusion pieces in the second connecting axle, be connected through the torsional spring post between extrusion piece and the second connecting axle, the below of extrusion piece is provided with the cooperation board, be provided with first reset spring between cooperation board and the transmission casing internal surface.

Further, the ejection mechanism comprises an ejection seat, the ejection seat is arranged on one side of the matching plate, an ejection block is arranged in the ejection seat, the ejection block is connected with the ejection seat through a connecting spring, a fixture block is arranged on one side of the ejection block, a contact block is arranged below the fixture block, a second reset spring is arranged between the contact block and the ejection seat, a moving block is arranged on one side of the contact block, and the moving block is located below the matching plate.

Furthermore, the contact surfaces of the matching plate and the moving block are all designed to be inclined planes, the cross section of the clamping block is U-shaped, and the contact surfaces of the clamping block and the abutting block are designed to be inclined planes.

Furthermore, the connecting mechanism comprises a movable rod, the movable rod penetrates through the transmission shell and is located below the ejection block, and a connecting rack is arranged at the lower end of the movable rod.

Further, oil transportation mechanism includes the connecting pipe and goes out oil pipe, it is connected with the transmission casing to go out oil pipe one end wherein, it is connected with first cavity to go out oil pipe other one end, the connecting pipe sets up in the below of transmission mechanism, and the connecting pipe is located one side of replacement mechanism, the tip setting of connecting pipe is provided with first oil pipe and second respectively and advances oil pipe, first oil pipe and second advance oil pipe and are located first cavity and third cavity respectively, be provided with movable seal plate in the connecting pipe, and be provided with connecting gear below the movable seal plate, connecting gear runs through the setting in the connecting pipe, and connecting gear and movable seal plate are connected the face and are the smooth surface, connecting gear is connected with connecting rack toothing.

Compared with the prior art, the invention has the beneficial effects that:

when the rear axle lubrication oil circulation lubricating device is used, the rear axle oil in the body can be externally circulated through the replacement mechanism and the transmission mechanism, so that the motion track of the rear axle oil is prolonged, the cooling effect of the rear axle is enhanced by the rear axle oil, the gear can be better cooled, the rear axle oil can be better contacted with the gear in the circulation process of the rear axle oil, the abrasion of the gear is reduced, the rear axle oil contacted with the gear is always changed due to the fact that the rear axle oil moves all the time, the overall viscosity of the rear axle oil can be reduced when the viscosity of the rear axle oil is reduced, the local viscosity of the rear axle oil can not be reduced, when the rear axle lubrication lubricating device is used, when the first transmission shaft rotates, the connecting rod can be driven to reciprocate, the pressing plate is connected with the connecting rod, the pressing plate can move up and down along with the reciprocating motion of the connecting rod, when the pressing plate moves up and down, the pushing force or suction force can be provided for the rear axle oil in the transmission shell, the rear axle oil can be effectively prevented from being contacted with the gear, the heat loss can be effectively reduced when the rear axle oil moves up and the gear is effectively, and the gear is not contacted with the gear, and the gear loss can be effectively reduced;

when the automobile rear axle gear cooling device is used, the first transmission shaft is connected with the rotating shaft through the first transmission belt, so that the first transmission shaft can be driven to rotate when the rotating shaft rotates in the driving process of an automobile, the pressing plate is driven to move up and down, the device does not need an extra power source, and meanwhile, synchronous motion can be performed according to the driving of the automobile, so that the rear axle gear cooling device can effectively dissipate heat, and the heat dissipation effect is improved;

when the rear axle oil is used, when the rear axle oil is not enough in certain degree, automatic replacement can be carried out, so that the situation that the rear axle oil cannot effectively lubricate an inner gear of a rear axle due to the fact that the rear axle oil is not enough in viscosity is prevented, normal driving is influenced due to the fact that the inner gear of the rear axle is abraded is prevented, along with continuous use of the rear axle oil, the viscosity of the rear axle oil is gradually reduced, at the moment, when an extrusion block arranged in a transmission shell rotates, the extrusion block gradually reduces resistance and gradually opens, when the viscosity of the rear axle oil is reduced to a certain degree, the extrusion block can open to a certain angle under the action of a torsion spring column at the moment, and then the extrusion block abuts against a matching plate, so that the matching plate moves downwards, the matching plate can abut against a moving block when the matching plate moves downwards, so that a moving block moves, at the moment, a clamping block and the abutting block are staggered, at the moment, the ejection block is ejected under the action of a connecting spring, so that the connecting rod moves downwards, the connecting rod drives a connecting gear to rotate in the process that the connecting rod moves downwards, so that the rear axle oil enters a second oil inlet pipe, and the oil can still effectively avoid the viscosity of the oil from entering a cavity reaching the standard;

fourthly, when oil with the viscosity not reaching the standard enters the third cavity, the movable partition plate gradually moves under the action of old rear axle oil, when the movable partition plate moves to a certain position, the top plate contacts the movable plate at the moment to enable the movable plate to move upwards, new rear axle oil in the second cavity enters the first cavity at the moment, when the movable partition plate enters the transmission shell, the movable seal plate resets at the moment, the new rear axle oil starts to circulate, and therefore the purpose that people do not need to replace the oil is achieved, and the oil can be replaced when the oil is in a proper degree;

in conclusion, the device is when using, and rear axle oil not only can effectively circulate to reach the effect to rear axle internal gear cooling and lubrication, and after rear axle oil used certain degree, can carry out automatic replacement with old and new rear axle oil, thereby need not artificial replacement and guarantee rear axle oil's result of use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic main sectional view of the present invention;

FIG. 3 is a schematic view of the transmission mechanism of the present invention;

FIG. 4 is a schematic side sectional view of the present invention;

FIG. 5 is a schematic structural diagram of an ejection mechanism according to the present invention;

FIG. 6 is an enlarged view of the structure at A in FIG. 5 according to the present invention;

FIG. 7 is a schematic view of the connection structure of the movable rod and the connecting mechanism according to the present invention;

FIG. 8 is an enlarged view of the structure of the invention at B in FIG. 7;

FIG. 9 is a schematic view of the inner structure of the connecting tube according to the present invention;

fig. 10 is a schematic view of the pressing block structure of the present invention.

Reference numerals:

1. a body; 11. a transfer housing; 12. a transmission connecting shaft; 13. a rotating shaft; 2. a replacement mechanism; 21. replacing the housing; 22. a pressing plate; 23. fixing the partition plate; 24. a movable plate; 25. a top plate; 26. a movable partition plate; 3. an oil delivery mechanism; 31. an oil outlet pipe; 32. a first oil inlet pipe; 33. a second oil inlet pipe; 34. a connecting pipe; 35. a connecting gear; 36. a movable closing plate; 4. a transmission mechanism; 41. a first drive belt; 42. a first drive shaft; 43. a connecting rod; 44. a first connecting shaft; 45. a second transmission shaft; 46. a second belt; 47. a second connecting shaft; 48. a mating plate; 49. extruding the block; 410. a first return spring; 411. a torsion spring post; 5. an ejection mechanism; 51. an ejection seat; 52. ejecting a block; 53. a clamping block; 54. a moving block; 55. a contact block; 56. a second return spring; 6. a connecting mechanism; 61. a movable rod; 62. and the rack is connected.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention 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, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed 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 meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Referring to fig. 1 to 10, an embodiment of the present invention provides a rear axle power transmission structure of a rear-drive electric vehicle, including a body 1 and a replacement mechanism 2, where the replacement mechanism 2 is disposed below the body 1, a transmission mechanism 4 is disposed on one side of the body 1, an oil transportation mechanism 3 is disposed on the other side of the body 1, the oil transportation mechanism 3 is connected to the replacement mechanism 2, an ejection mechanism 5 is disposed in the body 1, a connection mechanism 6 is disposed below the ejection mechanism 5, the connection mechanism 6 is disposed on one side of the oil transportation mechanism 3, the body 1 includes a transmission housing 11, a rotation shaft 13 is disposed on one side of the transmission housing 11, and a transmission connection shaft 12 is disposed through the transmission housing 11.

The during operation, along with the start-up of car, axis of rotation 13 rotates along with following this moment, can drive mechanism 4 and carry out synchronous reciprocating motion at axis of rotation 13 pivoted in-process, can make rear axle oil in the body 1 enter into replacement mechanism 2 through oil transportation mechanism 3 when drive mechanism 4 carries out reciprocating motion and entering into body 1 in, make rear axle oil circulate, the in-process of rear axle oil circulation not only can take away the heat that body 1 inner bearing rotated the production and can effectively lubricate the gear wherein simultaneously, along with the continuous use of rear axle oil, the viscosity of rear axle oil can constantly descend this moment, when rear axle oil viscosity descends to a certain degree, rear axle oil can't lubricate the heat dissipation to the rear axle internal gear this moment, just need replace rear axle oil this moment, when unable lubricated rear axle oil is when circulating, can enter into replacement mechanism 2 in the same, thereby come out with the new rear axle oil replacement in the replacement mechanism 2, thereby make the use of rear axle oil in the rear axle keep on certain viscosity, avoid the gear to appear wearing and tearing.

Specifically, replacement mechanism 2 is including replacing casing 21, replacement casing 21 sets up in the below of transmission casing 11, and has set gradually movable partition 26 and fixed partition 23 in the replacement casing 21, be provided with the third cavity between the left side wall of replacement casing 21 and the movable partition 26, be provided with the second cavity between movable partition 26 and the fixed partition 23, be provided with first cavity between the right side wall of fixed partition 23 and replacement casing 21, the activity is provided with pressing plate 22 in the first cavity, be provided with fly leaf 24 on the fixed partition 23, movable partition 26 is provided with roof 25 towards one side of fixed partition 23.

Specifically, the surface of the top plate 25 is designed to be an inclined plane, the width of the top plate 25 is smaller than that of the movable plate 24, and the contact surface between the movable plate 24 and the top plate 25 is also designed to be an inclined plane.

The during operation, because three cavitys are divided into in the replacement casing 21, every cavity all has own effect, when the oil that viscosity is substandard enters into the third cavity, movable partition 26 removed gradually under the effect of old rear axle oil this moment, when movable partition 26 removed a locating point, roof 25 contacted fly leaf 24 this moment, make fly leaf 24 shift up, the new rear axle oil that lies in the second cavity this moment enters into first cavity, when entering into transmission casing 11, movable closure plate 36 resets this moment, new rear axle oil begins to circulate, thereby reach and need not the people to replace, and just can replace when appropriate degree.

Specifically, the transmission mechanism 4 includes a first connection shaft 44, the first connection shaft 44 is disposed in the transmission housing 11 in a penetrating manner, one end of the first connection shaft 44 is provided with a first transmission shaft 42, the first transmission shaft 42 is located on the outer side of the transmission housing 11, the first transmission shaft 42 is located below the rotation shaft 13, a first transmission belt 41 is disposed between the first transmission shaft 42 and the rotation shaft 13, a connection rod 43 is disposed outside the first transmission shaft 42, the lower end of the connection rod 43 is connected to the pressing plate 22, the other end of the first connection shaft 44 is provided with a second transmission shaft 45, the second transmission shaft 45 is located in the transmission housing 11, a second connection shaft 47 is disposed below the second transmission shaft 45, a second transmission belt 46 is disposed between the second connection shaft 47 and the second transmission shaft 45, a plurality of pressing blocks 49 are disposed in the second connection shaft 47, the pressing blocks 49 are connected to the second connection shaft 47 through torsion spring columns 411, a matching plate 48 is disposed below the pressing blocks 49, and a first return spring 410 is disposed between the matching plate 48 and the inner surface of the transmission housing 11.

Specifically, the ejection mechanism 5 includes an ejection seat 51, the ejection seat 51 is disposed on one side of the mating plate 48, an ejection block 52 is disposed in the ejection seat 51, the ejection block 52 is connected with the ejection seat 51 through a connecting spring, a fixture block 53 is disposed on one side of the ejection block 52, a contact block 55 is disposed below the fixture block 53, a second return spring 56 is disposed between the contact block 55 and the ejection seat 51, a moving block 54 is disposed on one side of the contact block 55, and the moving block 54 is located below the mating plate 48.

Specifically, the contact surfaces of the mating plate 48 and the moving block 54 are both designed as inclined surfaces, the cross section of the fixture block 53 is U-shaped, and the contact surfaces of the fixture block 53 and the contact block 55 are both designed as inclined surfaces.

Specifically, the connecting mechanism 6 includes a movable rod 61, the movable rod 61 is penetratingly disposed in the transmission housing 11, the movable rod 61 is located below the ejection block 52, and a connecting rack 62 is disposed at a lower end of the movable rod 61.

During operation, can carry out automatic replacement when rear axle oil uses the inside viscosity of certain degree not enough, thereby prevent to be unable effectual plays lubricated effect to the rear axle internal gear owing to rear axle oil viscosity inadequately, lead to the rear axle internal gear to appear wearing and tearing and influence normal driving, along with the continuous use of rear axle oil, the viscosity of rear axle oil is reducing gradually this moment, the resistance that receives when setting up the extrusion piece 49 in transmission casing 11 at this moment rotatory reduces gradually and opens gradually, when rear axle oil viscosity reduces to certain degree, extrusion piece 49 can open certain angle under the effect of torsional spring post 411 this moment, thereby conflict cooperation board 48, make cooperation board 48 remove downwards, can conflict movable block 54 when cooperation board 48 removes downwards and make movable block 54 remove, when movable block 54 removes, fixture block 53 misplaces with conflict block 55 this moment, lead to ejecting block 52 ejecting under the effect of connecting spring this moment, thereby conflict movable rod 61, make movable rod 61 remove downwards, can drive connecting rack 62 under the in-process that movable rod 61 removed downwards and connect the rack and be connected, simultaneously, make gear connection and gear connection 62 rotate when moving downwards.

Concretely, oil transportation mechanism 3 includes connecting pipe 34 and play oil pipe 31, play oil pipe 31 wherein one end is connected with transmission casing 11, it is connected with first cavity to go out oil pipe 31 other one end, connecting pipe 34 sets up the below at transmission mechanism, and connecting pipe 34 is located one side of replacement mechanism 2, the tip setting of connecting pipe 34 is provided with first oil pipe 32 and second oil pipe 33 of advancing respectively, first oil pipe 32 and second oil pipe 33 of advancing are located first cavity and third cavity respectively, be provided with movable shrouding 36 in the connecting pipe 34, and be provided with connecting gear 35 below movable shrouding 36, connecting gear 35 runs through the setting in connecting pipe 34, and connecting gear 35 and movable shrouding 36 are connected the face and are the smooth surface, connecting gear 35 is connected with the meshing of connecting rack 62.

During operation, through replacement mechanism 2, oil transportation mechanism 3 and transmission casing 11 can make the rear axle oil in body 1 carry out the extrinsic cycle, thereby prolong the movement track of rear axle oil, make the rear axle by the reinforcing of self cooling effect, thereby better cool off the gear, and the rear axle oil carries out the in-process that circulates can be better with gear contact, thereby reduce the condition that the wearing and tearing appear in the gear, when first transmission shaft 42 rotates, can drive connecting rod 43 and carry out reciprocating motion, because press board 22 is connected with connecting rod 43, make press board 22 can carry out up-and-down motion along with the repetitive motion of connecting rod 43, when press board 22 carries out the up-and-down motion, can provide thrust or suction for the rear axle oil in transmission casing 11, thereby make the rear axle oil can enter into the first cavity along oil transportation mechanism 3, the rear axle oil carries out the in-process of motion, can make the rear axle oil form complete oil circuit, make the rear axle oil can enter into transmission casing 11 again, simultaneously, the in-process that the rear axle oil carries out the motion, can effectually take away the heat that the gear meshing produces, thereby not only can lead to the increase of rear axle oil contact with the more effectively, thereby the in-process of the increase of rear axle oil, the wearing and the gear contact of the rear axle, thereby more the in-process of the rear axle oil increases.

Working principle; the rotating shaft 13 is driven to rotate in the running process of the automobile, when the rotating shaft 13 rotates, the first transmission shaft 42 is connected with the rotating shaft 13 through the first transmission belt 41, at the moment, the first transmission shaft 42 rotates along with the rotation of the rotating shaft 13, when the first transmission shaft 42 rotates, the connecting rod 43 is arranged on the first transmission shaft 42, so that the connecting rod 43 can rotate along with the first transmission shaft 42 to reciprocate, meanwhile, the pressing plate 22 is connected with the connecting rod 43, so that the pressing plate 22 can move up and down along with the repeated movement of the connecting rod 43, when the pressing plate 22 moves up and down, the pushing force or the suction force can be provided for the rear axle oil in the transmission shell 11, so that the rear axle oil can enter the first cavity from the first oil inlet pipe 32 through the connecting pipe 34 and enter the transmission shell 11 from the oil outlet pipe 31 in the first cavity, thereby, the oil circuit circulation is completed, when the circulation is performed, not only a large amount of heat can be taken away, but also the lubricating effect of the gear in the transmission shell 11 is better, along with the continuous use of the rear axle oil, the viscosity of the rear axle oil is gradually reduced, along with the reduction of the viscosity of the rear axle oil, the extrusion block 49 is gradually opened, because the extrusion block 49 is arranged on the second connecting shaft 47, the second connecting shaft 47 is connected with the second transmission shaft 45 through the second transmission belt 46, and simultaneously the second transmission shaft 45 is connected with the first transmission shaft 42 through the first connecting shaft 44, the second connecting shaft 47 can rotate along with the rotation of the first transmission shaft 42, and simultaneously, because the second connecting shaft 47 is connected with the extrusion block 49 through the torsion spring column 411, the extrusion block 49 can be influenced by the viscosity of the rear axle oil when synchronously rotating along with the second connecting shaft 47, the extrusion block 49 can not be opened, when the viscosity is gradually reduced, the extrusion block 49 is gradually opened under the action of the torsion spring column 411, when the extrusion block 49 is opened to a certain angle under the action of the torsion spring column 411 and is abutted against the engagement plate 48, the engagement plate 48 moves downwards, when the engagement plate 48 moves downwards, the engagement plate is abutted against the moving block 54 to move the moving block 54, when the moving block 54 moves, the block 53 is dislocated with the block 55, at this time, the ejection block 52 is ejected under the action of the connecting spring and is abutted against the moving rod 61, so that the moving rod 61 moves downwards, the moving rod 61 drives the connecting rack 62 to move downwards synchronously in the downward moving process, meanwhile, because the connecting rack 62 is meshed with the connecting gear 35, the connecting gear 35 rotates when the connecting rack 62 moves downwards, when the connecting gear 35 rotates, the moving seal plate 36 is driven to rotate, when the moving seal plate 36 rotates, the channel between the connecting pipe 34 and the first oil inlet pipe 32 is closed, the channel between the connecting pipe 34 and the second oil inlet pipe 33 is opened, the rear axle oil enters the third cavity from the second oil inlet pipe 33, when the oil with the viscosity not reaching the standard enters the third cavity, the movable partition plate 26 gradually moves under the action of the old rear axle oil, when the movable partition plate 26 moves to a certain position, the top plate 25 contacts the movable plate 24 to move the movable plate 24 upwards, the new rear axle oil in the second cavity enters the first cavity, when the oil enters the transmission shell 11, the movable seal plate 36 resets, the new rear axle oil starts to circulate, so that the automatic replacement can be carried out without people, the replacement time is proper, after the replacement is completed, a driver only needs to take out the long rear axle oil from the third cavity at a proper time, and (4) re-infusing new rear axle oil into the second cavity.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (2)

1. A rear axle power transmission structure of a rear-drive electric automobile comprises a body (1) and is characterized in that; the oil-conveying device is characterized by further comprising a replacing mechanism (2), the replacing mechanism (2) is arranged below the body (1), a transmission mechanism (4) is arranged on one side of the body (1), an oil conveying mechanism (3) is arranged on the other side of the body (1), the oil conveying mechanism (3) is connected with the replacing mechanism (2), an ejection mechanism (5) is arranged in the body (1), a connecting mechanism (6) is arranged below the ejection mechanism (5), the connecting mechanism (6) is arranged on one side of the oil conveying mechanism (3), the body (1) comprises a transmission shell (11), a rotating shaft (13) is arranged on one side of the transmission shell (11), a transmission connecting shaft (12) penetrates through the transmission shell (11), the replacing mechanism (2) comprises a replacing shell (21), the replacing shell (21) is arranged below the transmission shell (11), a movable partition plate (26) and a fixed partition plate (23) are sequentially arranged in the replacing shell (21), a third cavity is arranged between the left side wall of the replacing shell (21) and the movable partition plate (26), a second cavity (23) is arranged between the fixed partition plate (23), the movable pressure plate (22) is arranged in the first cavity, the movable plate (24) is arranged on the fixed baffle plate (23), the top plate (25) is arranged on one side, facing the fixed baffle plate (23), of the movable baffle plate (26), the surface of the top plate (25) is designed to be an inclined plane, the width of the top plate (25) is smaller than that of the movable plate (24), the contact surface of the movable plate (24) and the contact surface of the top plate (25) are designed to be inclined planes, the oil conveying mechanism (3) comprises a connecting pipe (34) and an oil outlet pipe (31), one end of the oil outlet pipe (31) is connected with the transmission shell (11), the other end of the oil outlet pipe (31) is connected with the first cavity, the connecting pipe (34) is arranged below the transmission mechanism, the connecting pipe (34) is arranged on one side, facing the replacement mechanism (2), the end of the connecting pipe (34) is provided with a first oil inlet pipe (32) and a second oil inlet pipe (33), the first oil inlet pipe (32) and the second oil inlet pipe (33) are respectively arranged on one side of the first cavity and the third cavity, the movable pressure plate (22) and the connecting pipe (34) is arranged on the inner side, the connecting surface of the movable baffle plate (35) is connected with the gear (36), the connecting pipe (35) which is connected with the gear (35), the connecting gear (35) is meshed with the connecting rack (62) and is connected with the connecting rack, the transmission mechanism (4) comprises a first connecting shaft (44), the first connecting shaft (44) penetrates through the transmission shell (11), one end of the first connecting shaft (44) is provided with a first transmission shaft (42), the first transmission shaft (42) is located on the outer side of the transmission shell (11), the first transmission shaft (42) is located below the rotating shaft (13), a first transmission belt (41) is arranged between the first transmission shaft (42) and the rotating shaft (13), a connecting rod (43) is arranged outside the first transmission shaft (42), the lower end of the connecting rod (43) is connected with the pressing plate (22), the other end of the first connecting shaft (44) is provided with a second transmission shaft (45), the second transmission shaft (45) is located in the transmission shell (11), a second transmission shaft (45) is arranged below the second transmission shaft (45), a second connecting shaft (47) is arranged between the second connecting shaft (47) and the second transmission shaft (45), a plurality of connecting blocks (49) are arranged between the second connecting shaft (47) and the pressing block (49) through a plurality of pressing blocks (48), the ejection mechanism comprises a matching plate (48) and a transmission shell (11), a first return spring (410) is arranged between the matching plate (48) and the inner surface of the transmission shell (11), the ejection mechanism (5) comprises an ejection seat (51), the ejection seat (51) is arranged on one side of the matching plate (48), an ejection block (52) is arranged in the ejection seat (51), the ejection block (52) is connected with the ejection seat (51) through a connecting spring, a fixture block (53) is arranged on one side of the ejection block (52), a contact block (55) is arranged below the fixture block (53), a second return spring (56) is arranged between the contact block (55) and the ejection seat (51), a moving block (54) is arranged on one side of the contact block (55), the moving block (54) is arranged below the matching plate (48), the connection mechanism (6) comprises a movable rod (61), the movable rod (61) is arranged in the transmission shell (11) in a penetrating mode, the movable rod (61) is arranged below the ejection block (52), and a connecting rack (62) is arranged at the lower end of the movable rod (61).

2. The rear axle power transmission structure of the rear drive type electric automobile according to claim 1, characterized in that; the contact surfaces of the matching plate (48) and the moving block (54) are both designed to be inclined surfaces, the cross section of the fixture block (53) is U-shaped, and the contact surfaces of the fixture block (53) and the abutting block (55) are both designed to be inclined surfaces.

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