CN116428359A

CN116428359A - Energy-saving gearbox of automobile

Info

Publication number: CN116428359A
Application number: CN202310286860.5A
Authority: CN
Inventors: 李建新; 刘肃
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-07-14

Abstract

The invention provides an automobile energy-saving gearbox which comprises a gearbox, an automatic clutch I, an automatic clutch II, cruising type meshing wheels, a high-speed meshing device and a hydrodynamic retarder, wherein a transmission gear is arranged on the gearbox; the automatic clutch I comprises a driving star wheel, rollers and drums, wherein the driving star wheel is arranged on a transmission gear, three equally-divided roller columns are arranged on the driving star wheel, and a group of drums are correspondingly clutch-driven with the driving star wheel; the automatic clutch II comprises a driven star wheel, a roller and a drum wheel, wherein the drum wheel is connected with the intermediate shaft through a corresponding driven star wheel, the roller is arranged on the driven star wheel, and the roller corresponds to an arc groove on the inner wall of the drum wheel; a group of drums on the transmission gear are coaxial with the two shafts, and a high-speed meshing device is arranged at the joint of the two shafts and the hydrodynamic retarder. According to the invention, the power assembly does not generate a reverse dragging effect on running when the accelerator is released, the running distance is prolonged by utilizing the running inertia of the vehicle, the energy saving purpose is achieved, meanwhile, the clutch pedal is not stepped for gear shifting, and the operation convenience is improved.

Description

Energy-saving gearbox of automobile

Technical Field

The invention relates to the technical field of automobile energy conservation, in particular to an automobile energy-saving gearbox.

Background

The current gearbox transmission and clutch technology makes the vehicle need to frequently tread the clutch during gear shifting, which results in high labor intensity of the driver; and when the driver releases the accelerator pedal, the power assembly has a strong reverse dragging effect on the running system, so that the sliding distance is shortened, and the energy consumption is increased.

Disclosure of Invention

In view of the above, the invention provides an energy-saving gearbox of an automobile, which can realize that a power assembly does not generate a reverse dragging effect on running when an accelerator is released, and the running distance is prolonged by utilizing the running inertia of the automobile, so that the energy-saving purpose is achieved, and meanwhile, a clutch pedal can not be stepped to shift gears, thereby improving the operation convenience.

An automobile energy-saving gearbox comprises a gearbox, an automatic clutch I, an automatic clutch II, cruising type meshing wheels, a high-speed meshing device and a hydrodynamic retarder, wherein a transmission tooth is arranged on the gearbox; the automatic clutch I comprises a driving star wheel, rollers and drums, wherein the driving star wheel is arranged on a transmission gear, three equally-divided roller columns are arranged on the driving star wheel, and a group of drums are correspondingly clutch-driven with the driving star wheel; the automatic clutch II comprises a driven star wheel, a roller and a drum wheel, wherein the drum wheel is connected with the intermediate shaft through a corresponding driven star wheel, the roller is arranged on the driven star wheel, and the roller corresponds to an arc groove on the inner wall of the drum wheel; a group of drums on the transmission gear are coaxial with the two shafts, and a high-speed meshing device is arranged at the joint of the two shafts and the hydrodynamic retarder.

Further, a synchronizer and other gear wheels are mounted on the shafts, and when the synchronizer is moved into a set of drums, the shafts are engaged.

Furthermore, a cruising type meshing wheel is arranged on the intermediate shaft and consists of a shifting fork and a transmission clutch wheel, and is used for realizing a sliding prohibition state during reversing.

Further, the high-speed meshing device consists of a shifting fork, a locking roller, a push rod, a meshing star wheel and a push rod, wherein the meshing star wheel is connected with an impeller of the hydrodynamic retarder through the high-speed meshing device, a plurality of arc grooves are formed in the inner wall of the impeller, and the roller at the meshing star wheel corresponds to the arc grooves of the impeller.

Further, when the vehicle descends a steep slope, the high-speed meshing device toggles the ejector rod through the shifting fork, then drives the locking roller of the meshing star wheel to be folded with the arc groove on the inner wall of the impeller, and drives the hydraulic retarder to generate resistance so as to slow the running speed of the vehicle

Further, the transmission gear is dynamically connected with a drum wheel on the intermediate shaft, and the drum wheel twists the passive star wheel, so that other gears except for the reverse gear can automatically slide during running.

The invention can automatically slide and not step on the clutch to change speed in the vehicle running, two sets of overrun clutches are arranged in the gearbox, so that all gears can automatically slide when the throttle is released, a set of meshing gear sets with cruising front ends are arranged on the intermediate shaft, the vehicle is in a slip-forbidden working condition when in reversing, and a set of high-speed meshing devices are arranged at the tail end and connected with the hydraulic retarder, and can be engaged and separated in the states of any two shafts with different speeds, thereby achieving the aim of slowing and slip-forbidden, ensuring the vehicle running safety, relieving the pressure of a braking system, inhibiting the inertia sliding of the vehicle, realizing the reverse dragging function and achieving the aims of saving energy and safety; in addition, the hydraulic retarder is additionally arranged, so that the vehicle can play a role in retarding when decelerating, the pressure of a braking system is lightened, and the characteristics of more comfort and safety are achieved.

Drawings

FIG. 1 is a cross-sectional view of an automotive energy saving transmission of the present invention;

FIG. 2 is a schematic diagram of a coupling structure between an automotive driving star wheel and a roller column according to the present invention;

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

fig. 4 is a schematic view of the structure of the high-speed clutch of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-4, an embodiment of the present invention provides an energy-saving gearbox for an automobile, which comprises a gearbox 2, an automatic clutch one, an automatic clutch two, cruise meshing wheels 7, a high-speed meshing device 12 and a hydrodynamic retarder 15, wherein a transmission gear 1 is installed on the gearbox 2.

The automatic clutch I comprises a driving star wheel 3, a roller 16 and a drum wheel 4; the driving star wheel 3 is arranged on the driving tooth 1, the rolling columns 16 are uniformly divided by three rolling columns 16 (shown in figure 2) and are in clutch transmission corresponding to the driving star wheel 3, namely, the driving star wheel 3 drives a group of drums 4, and a plurality of arc grooves are formed in the inner wall of the group of drums 4. A group of drums 4 on the transmission gear 1 is coaxial with the two shafts 10, and a synchronizer 21 and other gear gears are arranged on the two shafts 10. The intermediate shaft 9 is simultaneously coupled with a first shaft (gearbox input shaft) and a second shaft 10, receives power transmitted from the first shaft, simultaneously meshes with gears with different numbers of teeth fixed on the intermediate shaft 9 and gears with different numbers of teeth on the corresponding second shaft 10 at different speed ratios as required under the control of a speed change mechanism, and transmits the power to the second shaft 10.

The automatic clutch II comprises a driven star wheel 5, a roller 16 and a drum wheel 6, wherein the drum wheel 6 is connected with an intermediate shaft 9 through the corresponding driven star wheel 5, and a plurality of arc grooves are formed in the inner wall of the drum wheel 6; the intermediate shaft 9 is provided with three driven star wheels 5, the radial positions of the three driven star wheels 5 are staggered at equal angles, the driven star wheels 5 are provided with rollers 16, and the rollers 16 correspond to arc grooves on the inner wall of the drum wheel 6. The intermediate shaft 9 is provided with a cruise type meshing wheel 7, the cruise type meshing wheel 7 consists of a shifting fork 8 and a transmission clutch wheel 17, the lower shifting fork 8 is driven by the acting force of an external cylinder to drive the cruise type meshing wheel 7 to be connected with the drum wheel 6 coaxial with the intermediate shaft 9, and the idle running state can be realized during reversing.

The high-speed meshing device 12 is arranged at the joint of the two shafts 10 and the hydrodynamic retarder 15, and as shown in fig. 4, the high-speed meshing device 12 consists of a shifting fork 11, a locking roller 18, a push rod 19, a meshing star wheel 20 and a push rod 13. The meshing star wheel 20 is connected with the impeller 14 of the hydrodynamic retarder 15 through the high-speed meshing device 12, a plurality of arc grooves are formed in the inner wall of the impeller 10, the rollers 16 at the meshing star wheel 20 correspond to the arc grooves of the impeller 14, and the transmission gear 1 is dynamically connected with the drum wheel 6 on the intermediate shaft 9. The shifting fork 11 drives three push rods 19 uniformly distributed in the circumferential direction to synchronously push forwards under the pushing of an external cylinder of the gearbox, and then the locking roller 18 is pushed to be engaged with a multi-arc groove structure of the inner wall of the impeller 10 of the hydrodynamic retarder 15, so that the hydraulic reaction force of the hydrodynamic retarder 15 is transmitted to the meshing star wheel 20 fixedly connected to the two shafts 10 through the spline, and the aim of hydrodynamic retarding is achieved.

The working principle of the invention is as follows:

the transmission gear 1 drives the driving star wheel 3, and the driving star wheel 3 drives a group of drums 4; when the dial synchronizer 21 is dialed into the group of drums 4 to enable the first shaft and the second shaft 10 to be engaged, the vehicle runs in a direct gear; when the driver releases the accelerator pedal, the engine is in an idle working condition, the vehicle runs forwards by self inertia, and the running distance is prolonged due to the 'reverse dragging' resistance of the power assembly, so that the driver reduces the frequency of stepping on the accelerator pedal, and the energy-saving purpose is achieved. When the vehicle runs down a steep slope, the high-speed meshing device 12 drives the ejector rod 13 through the shifting fork 11, then drives the roller 18 of the meshing star wheel 20 to be folded with the arc groove on the inner wall of the impeller 14, and drives the hydraulic retarder 15 to generate resistance so as to slow the running speed of the vehicle, thereby achieving the purpose of safe running.

The transmission gear 1 is dynamically connected with the drum wheel 6 on the intermediate shaft 9, the drum wheel 6 twists the driven star wheel 5, so that other gears except for the reverse gear can automatically slide during running, and the power assembly and the running system are in a disconnected state at the moment, so that a clutch can not be stepped on during gear shifting, and the labor intensity of a driver is reduced; when the vehicle is in reverse gear, the shifting fork 8 is pushed by the air cylinder, so that the cruise meshing wheel 7 is engaged with the drum wheel 6, and the idle running state is realized when the vehicle is in reverse gear.

The invention integrates an automatic clutch, a cruising type meshing wheel 7, a high-speed meshing device 12 and a hydraulic retarder 15 on a gearbox 2; through the application of the two groups of automatic clutches, the cruise meshing wheel 7 and the high-speed meshing device 12, when a driver releases the acceleration pedal, the power assembly is automatically separated from the running system, the action of the transmission disc clutch is replaced, and the easy gear shifting without stepping on the clutch is realized; because the automatic separation reduces the 'reverse dragging' action of the power assembly when the vehicle slides, the running inertia of the vehicle is effectively released, the sliding distance is prolonged, and the frequency of stepping on the accelerator pedal by a driver is reduced; when the vehicle brakes and descends a steep slope, the hydraulic retarder 15 integrated at the rear end of the gearbox 2 automatically connects the two shafts 10 (output shafts) with impellers of the hydraulic retarder 15 through shifting forks, hydraulic oil in the hydraulic retarder 15 plays a role in retarding the rotating impellers and counteracts the two shafts 10 (output shafts) to provide braking assistance for the vehicle, so that the abrasion of an original braking system of the vehicle is reduced, and the safety and smoothness are improved.

The foregoing is merely illustrative embodiments of the present invention, and the present invention is not limited thereto, and any changes or substitutions that may be easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An energy-saving gearbox for an automobile is characterized in that: comprises a gearbox (2), an automatic clutch I, an automatic clutch II, cruising meshing wheels (7), a high-speed meshing device (12) and a hydrodynamic retarder (15), wherein the gearbox (2) is provided with a transmission gear (1); the automatic clutch I comprises a driving star wheel (3), rollers (16) and a drum wheel (4), wherein the driving star wheel (3) is arranged on a transmission gear (1), three equally-divided roller columns (6) are arranged on the driving star wheel (3), and one group of drum wheels (4) and the driving star wheel (3) are correspondingly clutch-driven; the automatic clutch II comprises a driven star wheel (5), a roller (16) and a drum wheel (6), wherein the drum wheel (6) is connected with the intermediate shaft (9) through the corresponding driven star wheel (5), the roller (16) is arranged on the driven star wheel (5), and the roller (16) corresponds to an arc groove on the inner wall of the drum wheel (6); a group of drums (4) on the transmission gear (1) and the two shafts (10) are coaxial, and a high-speed meshing device (12) is arranged at the joint of the two shafts (10) and the hydrodynamic retarder (5).

2. The automotive energy saving transmission of claim 1, wherein: a synchronizer (21) and other gear wheels are mounted on the two shafts (10), and when the synchronizer (21) is shifted into the group of drums (4) to enable the one shaft to be connected with the two shafts (10).

3. The automotive energy saving transmission of claim 1, wherein: the intermediate shaft (9) is provided with three driven star wheels (5), and the radial positions of the three driven star wheels (5) are staggered in equal angles.

4. The automotive energy saving transmission of claim 1, wherein: the intermediate shaft (9) is provided with a cruising type meshing wheel (7), and the cruising type meshing wheel (7) consists of a shifting fork (8) and a transmission clutch wheel (17) and is used for realizing a sliding prohibition state during reversing.

5. The automotive energy saving transmission of claim 1, wherein: the high-speed meshing device (12) consists of a shifting fork (11), a locking roller (18), a push rod (19), a meshing star wheel (20) and a push rod (13), wherein the meshing star wheel (20) is connected with an impeller (14) of a hydrodynamic retarder (15) through the high-speed meshing device (12), a plurality of arc grooves are formed in the inner wall of the impeller (10), and the roller (16) at the meshing star wheel (20) corresponds to the arc grooves of the impeller (14).

6. The energy efficient gearbox for a vehicle as defined in claim 5, wherein: when the vehicle runs down a steep slope, the high-speed meshing device (12) drives the ejector rod (13) through the shifting fork (11), then drives the locking roller (18) of the meshing star wheel (20) to be folded with the arc groove on the inner wall of the impeller (14), and drives the hydraulic retarder (15) to generate resistance so as to slow the running speed of the vehicle.

7. The automotive energy saving transmission of claim 1, wherein: the transmission gear (1) is dynamically connected with a drum wheel (6) on the intermediate shaft (9), and the drum wheel (6) twists the passive star wheel (5) so that other gears except for the reverse gear can automatically slide during running.