New energy automobile speed changer transmission device

Abstract

The utility model relates to the technical field of automobile transmissions, in particular to a new energy automobile transmission transmission device which comprises a transmission transmission box, a box cover is installed on the top of the transmission transmission box, and a lubricating assembly is arranged between the transmission transmission box and the box cover. Therefore, the requirement of a vehicle for power output under different running working conditions is met, connection and disconnection of an oil conveying pipe can be controlled along with power transmission, it is ensured that lubricating oil can rapidly and effectively cover the portion which is most required to be lubricated, friction loss between gears is remarkably reduced, and the service life of the vehicle is prolonged. The problems of abrasion, scratches, even breakage and the like caused by excessive friction of the surface of the gear are prevented, the maintenance and replacement frequency caused by damage of parts is reduced, the maintenance cost of a vehicle is reduced, the service life of the whole transmission device of the transmission is prolonged, the gear can be kept stable in the meshing process, and the reliability and stability of the vehicle are further improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile gearboxes, in particular to a new energy automobile gearbox transmission device. BACKGROUND

[0002] Under the background of global energy conservation and sustainable development, new energy vehicles, as an important alternative to traditional fuel vehicles, have developed rapidly in recent years. As one of the core components of the power system of new energy vehicles, the performance of the gearbox transmission device directly affects the power output, energy consumption, driving stability and reliability of the vehicle, and therefore has always been the focus of research in the field of automobile engineering.

[0003] At present, the existing automobile gearbox transmission device has many drawbacks in use. Since the lubrication of the gearbox transmission device is mainly in the form of splash lubrication, the splash range of the lubricating oil is difficult to control accurately, so that some key parts cannot be lubricated in time and fully, and it is difficult to ensure that the lubricating oil uniformly covers all parts of the gear meshing. This can easily cause local wear and tear, which not only affects the service life of the gear, but also can cause noise and vibration problems when the gears mesh, resulting in interrupted or unstable power transmission. During the power transmission process, there will be a large energy loss, resulting in insufficient power output of the vehicle. Therefore, in order to solve the above problems, the application provides a new energy automobile gearbox transmission device. CONTENT OF THE INVENTION

[0004] In order to solve the problem that some key parts of the existing gearbox transmission device cannot be lubricated in time and fully, which can easily cause local wear and tear, the application provides a new energy automobile gearbox transmission device.

[0005] The new energy automobile gearbox transmission device provided by the application comprises a gearbox transmission box, a box cover is installed on the top of the gearbox transmission box, a lubricating assembly is arranged between the gearbox transmission box and the box cover, the lubricating assembly comprises a driving shaft rotatably connected to one side of the inside of the gearbox transmission box, a driven shaft is rotatably connected to the other side of the inside of the gearbox transmission box, a main gear group and a sub gear group are arranged between the driving shaft and the driven shaft, respectively, the main gear group and the sub gear group each comprise two gear wheels that mesh with each other, the gear wheel close to the driving shaft is rotatably connected to the driving shaft, and the gear wheel close to the driven shaft is fixedly connected to the driven shaft, two groups of oil dripping pipes are fixed to the surface of the box cover, the bottom ends of the two groups of oil dripping pipes respectively face the meshing positions of the main gear group and the sub gear group, an oil delivery pipe is fixed to the top of the oil dripping pipe, a plugging seat is fixed to the surface of the oil delivery pipe, and a plugging plate is slidably connected to the inside of the plugging seat.

[0006] Preferably, the top of the locking tooth block is fixed with a pull plate, a gear selector is arranged between the main gear group and the auxiliary gear group, the surface of the drive shaft is fixed with a spline, the gear selector is slidably connected to the spline on the surface of the drive shaft through an internally formed spline groove, the surface of the gear selector is symmetrically fixed with locking teeth one on both sides, and the two groups of gear teeth of the main gear group and the auxiliary gear group rotatably connected to the surface of the drive shaft are fixed with locking teeth two adapted to the gear selector on opposite sides.

[0007] Preferably, the surface of the gear selector is formed with a rotating ring groove, the inside of the transmission gearbox is hingedly connected with a push rod, the surface of the transmission gearbox is formed with a push groove adapted to the push rod, and one end of the push rod is slidably connected to the rotating ring groove in the inside of the gear selector through a rotating ball.

[0008] Preferably, the surface of the driven shaft is fixed with a transmission bevel gear pair, a transmission shaft is coaxially fixed in the bevel gear of the transmission bevel gear pair, the transmission shaft is rotatably connected to the inside of the transmission gearbox, and the top end of the transmission shaft penetrates through the lower surface of the box cover and extends to the top of the box cover and is fixedly connected with the transmission gear arranged at the top of the box cover.

[0009] Preferably, the surface of the transmission gear is meshingly connected with a driven gear, the inside of the driven gear is fixed with a rotating shaft, and the surface of the rotating shaft is rotatably connected to the box cover. The top end of the rotating shaft is fixed with a push cam.

[0010] Preferably, the two sides of the push cam are symmetrically abutted with extrusion pulley seats, a plurality of groups of springs are fixed between the extrusion pulley seats and the blocking seat, and one side of the extrusion pulley seat and one side of the blocking plate are fixedly connected.

[0011] In summary, the present application has the following beneficial technical effects:

[0012] By designing the lubricating assembly, the gear selector is driven by the lever to slide along the surface of the drive shaft, so that the switching of different gears can be completed, thereby meeting the demand for power output of the vehicle under different driving conditions. When starting and climbing, the vehicle can be switched to a suitable gear to obtain greater torque, and when driving at high speed, the vehicle can be switched to another gear to optimize power transmission and improve driving efficiency. The power transmission is coherent during the whole process, power loss is reduced, the stability and reliability of the vehicle are ensured, and after the driven shaft starts to rotate, the blocking plate can slide back and forth in the blocking seat, thereby controlling the on-off of the oil delivery pipe and realizing the lubrication of the gear meshing part. Not only can the waste of lubricating oil be avoided, but also the meshing part can be lubricated when the gear set is actually working, so that the lubricating oil can quickly and effectively cover the part that needs lubrication most, significantly reducing the friction loss between gears, preventing the gear surface from being worn, scratched or even broken due to excessive friction, reducing the frequency of maintenance and replacement due to component damage, reducing the maintenance cost of the vehicle, prolonging the service life of the whole transmission device, and keeping the gear stable during meshing, thereby further improving the reliability and stability of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the overall structure schematic diagram of the device in the embodiment of the application;

[0014] Figure 2 is the transmission gearbox sectional view of the device in the embodiment of the application;

[0015] Figure 3 is the structure schematic diagram of the tank cover and oil drip pipe of the device in the embodiment of the application;

[0016] Figure 4 is the structure schematic diagram of the push cam and oil delivery pipe of the device in the embodiment of the application.

[0017] BRIEF DESCRIPTION OF DRAWINGS: 1, transmission gearbox; 2, tank cover; 3, drive shaft; 4, main gear set; 5, auxiliary gear set; 6, gear selector; 7, lever; 8, driven shaft; 9, transmission bevel gear pair; 10, transmission shaft; 11, transmission gear; 12, driven gear; 13, rotating shaft; 14, push cam; 15, extrusion pulley seat; 16, blocking seat; 17, spring; 18, blocking plate; 19, oil delivery pipe; 20, oil drip pipe. DETAILED DESCRIPTION

[0018] The following will be described in detail in combination with the Figure 1 - Figure 4 The application will be further described in detail.

[0019] EMBODIMENT:

[0020] A new energy vehicle transmission device, referring toFigure 1 Figure 2 , including transmission gearbox 1, gearbox 1 mounted on the top cover 2, transmission gearbox 1 and cover 2 between the lubrication assembly, through the lubrication assembly, can ensure that the lubricating oil can quickly and effectively cover the most need to lubricate the site, significantly reduce the friction loss between the gears, the lubrication assembly includes a drive shaft 3 rotationally connected to the inside of the transmission gearbox 1 one side, the other side of the transmission gearbox 1 rotationally connected to the driven shaft 8, drive shaft 3 and driven shaft 8 between the main gear group 4 and the sub gear group 5 are provided, the main gear group 4 and the sub gear group 5 are composed of two mutually meshing gear, the gear near the drive shaft 3 side is rotatably connected with the drive shaft 3, the gear near the driven shaft 8 side is fixedly connected with the driven shaft 8, the surface of the cover 2 is fixed with two groups of oil drip pipe 20, and the bottom ends of the two groups of oil drip pipe 20 respectively face the meshing portion of the main gear group 4 and the sub gear group 5, the top of the oil drip pipe 20 is fixed with the oil pipe 19, the surface of the oil pipe 19 is fixed with the blocking seat 16, and the inside of the blocking seat 16 is slidably connected with the blocking plate 18, the blocking plate 18 reciprocatingly slides in the blocking seat 16, thereby controlling the on-off of the oil pipe 19, when the blocking plate 18 is opened, the oil pipe 19 is opened, the lubricating oil drops from the oil pipe 19 to the meshing portion of the main gear group 4 and the sub gear group 5 through the oil drip pipe 20, realizing the lubrication of the gear meshing portion;

[0021] When in use, the driven shaft 8 starts to rotate after obtaining power, which can drive the blocking plate 18 to reciprocatingly slide in the blocking seat 16, thereby controlling the on-off of the oil pipe 19, when the blocking plate 18 is opened, the oil pipe 19 is opened, the lubricating oil drops from the oil pipe 19 to the meshing portion of the main gear group 4 and the sub gear group 5 through the oil drip pipe 20, realizing the lubrication of the gear meshing portion, when the push cam 14 releases the extrusion pulley seat 15, under the action of the spring 17, the blocking plate 18 reblocks the oil pipe 19, stopping the oil dripping.

[0022] Referring to Figure 1 Figure 2 , the top of the locking tooth block is fixed with a pull plate, the main gear group 4 and the sub gear group 5 are provided with a gear selector 6, the surface of the drive shaft 3 is fixed with a spline, and the gear selector 6 is slidably connected to the spline on the surface of the drive shaft 3 through the spline groove formed in the inside, the surface of the gear selector 6 is fixed with a locking tooth one on both sides symmetrically, the two groups of gear of the main gear group 4 and the sub gear group 5 rotatably connected to the surface of the drive shaft 3 are fixed with a locking tooth two adapted to the gear selector 6 on the opposite side, the surface of the gear selector 6 is provided with a pull ring groove, the transmission gearbox 1 is hingedly connected with a pull rod 7, the surface of the transmission gearbox 1 is provided with a pull groove adapted to the pull rod 7, and one end of the pull rod 7 is slidably connected to the pull ring groove in the inside of the gear selector 6 through a pull ball.​​

[0023] In use, when the gear needs to be switched, the shifting lever 7 is driven by external operation, the shifting ball at one end of the shifting lever 7 slides in the shifting ring groove on the surface of the gear selector 6, and drives the gear selector 6 to slide along the spline on the surface of the drive shaft 3, and then the locking teeth one on the surface of the gear selector 6 mesh with the locking teeth two on the corresponding gear of the main gear set 4 or the auxiliary gear set 5, so as to realize gear selection. When the locking teeth one mesh with the locking teeth two of the main gear set 4, the gear connected with the drive shaft 3 in the main gear set 4 is driven to rotate by the drive shaft 3, and the gear connected with the driven shaft 8 is driven to rotate by the meshing, so as to transmit power to the driven shaft 8, realize one transmission ratio, and complete the switching of different gears.

[0024] Reference Figure 3 - Figure 4 The surface of the driven shaft 8 is fixedly provided with a transmission bevel gear pair 9, the bevel gear of the transmission bevel gear pair 9 is coaxially fixedly provided with a transmission shaft 10, the transmission shaft 10 is rotatably connected in the inside of the transmission gearbox 1, the top end of the transmission shaft 10 penetrates through the lower surface of the box cover 2 and extends to the top of the box cover 2, and is fixedly connected with a transmission gear 11 arranged at the top of the box cover 2. The surface of the transmission gear 11 is meshingly connected with a driven gear 12, the inside of the driven gear 12 is fixedly provided with a rotating shaft 13, and the rotating shaft 13 is rotatably connected to the surface of the box cover 2. The top end of the rotating shaft 13 is fixedly provided with a push cam 14, and the two sides of the push cam 14 are symmetrically abutted with extrusion pulley seats 15. A plurality of groups of springs 17 are fixedly arranged between the extrusion pulley seats 15 and the blocking seat 16, and one side of the extrusion pulley seat 15 and one side of the blocking plate 18 are fixedly connected.

[0025] In use, when the driven shaft 8 obtains power and starts to rotate, the transmission bevel gear pair 9 fixedly arranged on the surface of the driven shaft 8 rotates, the bevel gear of the transmission bevel gear pair 9 drives the coaxially fixed transmission shaft 10 to rotate, so as to transmit power to the transmission gear 11. The transmission gear 11 meshes with the driven gear 12, and drives the driven gear 12 to rotate, so as to drive the rotating shaft 13 to rotate on the surface of the box cover 2. The push cam 14 at the top end of the rotating shaft 13 rotates synchronously. When the push cam 14 rotates, the eccentric structure thereof intermittently extrudes the two abutting extrusion pulley seats 15, so that the two groups of extrusion pulley seats 15 reciprocate under the action of the push cam 14. Then, under the action of the springs 17, the blocking plate 18 reciprocates in the blocking seat 16, so as to control the on-off of the oil delivery pipe 19.

[0026] The working principle of the new energy vehicle transmission device is as follows: the power source of the new energy vehicle is connected with the driving shaft 3 to transmit power to the driving shaft 3, and the driving shaft 3 starts to rotate in the transmission box 1; when it is necessary to switch gears, the external operation drives the shifting rod 7, the shifting ball at one end of the shifting rod 7 slides in the shifting ring groove on the surface of the gear selector 6, and the gear selector 6 slides along the spline on the surface of the driving shaft 3; then the locking teeth one on the surface of the gear selector 6 mesh with the locking teeth two on the corresponding gear of the main gear set 4 or the auxiliary gear set 5, to realize gear selection; when the locking teeth one mesh with the locking teeth two of the main gear set 4, the driving shaft 3 drives the gear rotatingly connected with the driving shaft 3 in the main gear set 4 to rotate, and the gear drives the gear fixedly connected with the driven shaft 8 to rotate through meshing, so as to transmit power to the driven shaft 8, to realize one transmission ratio; when switching to the auxiliary gear set 5, another transmission ratio is realized in the same way, to complete the switching of different gears, so as to meet the demand of power output of the vehicle under different driving conditions; when starting to climb, the vehicle can be switched to the appropriate gear to obtain greater torque, and when driving at high speed, the vehicle can be switched to another gear to optimize power transmission and improve driving efficiency; the power transmission is continuous during the whole process, power loss is reduced, and the stability and reliability of vehicle driving are ensured.

[0027] Further, when the driven shaft 8 obtains power and starts to rotate, the surface-fixed transmission cone gear pair 9 rotates, the bevel gears of the transmission cone gear pair 9 drive the coaxially-fixed transmission shaft 10 to rotate, that is, power is transmitted to the transmission gear 11, the transmission gear 11 meshes with the driven gear 12, and then drives the driven gear 12 to rotate, thereby driving the rotating shaft 13 to rotate on the surface of the box cover 2, the top-pushing cam 14 at the top end of the rotating shaft 13 rotates synchronously, when the top-pushing cam 14 rotates, the eccentric structure intermittently pushes the two sides of the extrusion pulley seat 15, so that the two groups of extrusion pulley seats 15 reciprocate under the action of the top-pushing cam 14, and then under the action of the spring 17, the blocking plate 18 reciprocates in the blocking seat 16, thereby controlling the opening and closing of the oil delivery pipe 19, when the blocking plate 18 is opened, the oil delivery pipe 19 is opened, and the lubricating oil drops from the oil delivery pipe 19 through the oil dripping pipe 20 to the meshing position of the main gear set 4 and the auxiliary gear set 5, thereby achieving lubrication of the meshing position of the gear set, when the top-pushing cam 14 releases the extrusion pulley seat 15, the blocking plate 18 re-blocks the oil delivery pipe 19 under the action of the spring 17, and the dripping of oil is stopped, not only can avoid the waste of lubricating oil, but also can ensure that the meshing position can be lubricated when the gear set is actually working, so that the lubricating oil can quickly and effectively cover the position most in need of lubrication, significantly reducing the friction loss between the gears, preventing the gear surface from being worn, scratched, or even broken due to excessive friction, reducing the frequency of maintenance and replacement due to component damage, reducing the maintenance cost of the vehicle, prolonging the service life of the entire transmission device, and keeping the gears stable during meshing, thereby further improving the reliability and stability of the vehicle.

[0028] The above describes an exemplary embodiment of a new energy vehicle transmission device provided by the present disclosure with reference to a preferred embodiment, however, those skilled in the art can understand that various modifications and improvements can be made to the above specific embodiments without departing from the concept of the present disclosure, and various technical features and structures proposed by the present disclosure can be combined without departing from the protection scope of the present disclosure, and the protection scope of the present disclosure is determined by the appended claims.

Claims

1. A new energy vehicle transmission drive device, comprising a transmission drive box (1), characterized in that: The top of the transmission gearbox (1) is provided with a cover (2), a lubricating assembly is arranged between the transmission gearbox (1) and the cover (2), the lubricating assembly comprises a driving shaft (3) rotatably connected to one side of the inside of the transmission gearbox (1), the other side of the inside of the transmission gearbox (1) is rotatably connected with a driven shaft (8), the driving shaft (3) and the driven shaft (8) are respectively provided with a main gear group (4) and a sub gear group (5), the main gear group (4) and the sub gear group (5) are each composed of two mutually meshing gear wheels, the gear wheel close to the driving shaft (3) is rotatably connected with the driving shaft (3), and the gear wheel close to the driven shaft (8) is fixedly connected with the driven shaft (8), the surface of the cover (2) is fixedly provided with two groups of oil dripping pipes (20), the bottom ends of the two groups of oil dripping pipes (20) respectively face the meshing positions of the main gear group (4) and the sub gear group (5), the top of the oil dripping pipe (20) is fixedly provided with an oil delivery pipe (19), the surface of the oil delivery pipe (19) is fixedly provided with a blocking seat (16), and the inside of the blocking seat (16) is slidably connected with a blocking plate (18).

2. The new energy vehicle transmission drive device according to claim 1, characterized in that: The main gear group (4) and the sub gear group (5) are provided with a gear selector (6), the surface of the driving shaft (3) is fixedly provided with a spline, the gear selector (6) is slidably connected with the spline on the surface of the driving shaft (3) through the spline groove formed in the inside of the gear selector (6), and the surface of the gear selector (6) is symmetrically fixedly provided with a locking tooth one on both sides, the opposite sides of the two gear wheels of the main gear group (4) and the sub gear group (5) rotatably connected with the surface of the driving shaft (3) are fixedly provided with locking tooth two matched with the gear selector (6).

3. The new energy vehicle transmission drive device according to claim 2, characterized in that: A rotating ring groove is formed in the surface of the gear selector (6), a rotating rod (7) is hingedly connected in the inside of the transmission gearbox (1), a rotating groove matched with the rotating rod (7) is formed in the surface of the transmission gearbox (1), and one end of the rotating rod (7) is slidably connected in the rotating ring groove in the inside of the gear selector (6) through a rotating ball.

4. The new energy vehicle transmission drive device according to claim 1, characterized in that: A transmission bevel pair (9) is fixedly arranged on the surface of the driven shaft (8), a transmission shaft (10) is coaxially fixed in the bevel gear of the transmission bevel pair (9), the transmission shaft (10) is rotatably connected in the inside of the transmission gearbox (1), the top end of the transmission shaft (10) penetrates through the lower surface of the cover (2) and extends to the top of the cover (2), and the transmission shaft (10) is fixedly connected with a transmission gear (11) arranged on the top of the cover (2).

5. The new energy vehicle transmission drive device according to claim 4, characterized in that: The surface of the transmission gear (11) is meshingly connected with a driven gear (12), a rotating shaft (13) is fixedly arranged in the inside of the driven gear (12), the rotating shaft (13) is rotatably connected with the surface of the cover (2), and the top end of the rotating shaft (13) is fixedly provided with a pushing cam (14).

6. The new energy vehicle transmission drive device according to claim 5, characterized in that: The both sides of the pushing cam (14) are symmetrically abutted with extrusion pulley seats (15), a plurality of groups of springs (17) are fixed between the extrusion pulley seats (15) and blocking seats (16), and one side of the extrusion pulley seat (15) and one side of a blocking plate (18) are fixedly connected.

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