Energy-saving gearbox for automobile

Abstract

The application provides an automobile energy-saving gearbox, which comprises a gearbox, an automatic clutch I, an automatic clutch II, a cruising meshing wheel, a high-speed meshing device and a hydraulic retarder, and a transmission gear is arranged on the gearbox; the automatic clutch I comprises a driving star wheel, rollers and drum wheels, the driving star wheel is installed on the transmission gear, three rollers which are equally divided are arranged on the driving star wheel, and a group of drum wheels are in correspondence with the driving star wheel for clutch transmission; the automatic clutch II comprises a driven star wheel, rollers and drum wheels, the drum wheels are connected with an intermediate shaft through the corresponding driven star wheel, the rollers are arranged on the driven star wheel, and the rollers are in correspondence with the inner wall arc grooves of the drum wheels; a group of drum wheels on the transmission gear are coaxial with a second shaft, and the high-speed meshing device is arranged on the connection position between the second shaft and the hydraulic retarder. The application can realize that the power assembly does not generate "reverse dragging" effect on driving when the accelerator is released, the driving distance is prolonged by using the vehicle driving inertia, the energy-saving purpose is achieved, and gear shifting can be realized without stepping on the clutch pedal, and the operation convenience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile energy-saving technology, and particularly relates to an automobile energy-saving gearbox. BACKGROUND

[0002] The current gearbox transmission and clutch technology makes the driver need to frequently step on the clutch when shifting gears, resulting in high labor intensity of the driver; and when the driver releases the accelerator pedal, the power assembly has a strong "reverse drag" effect on the running system, so that the sliding distance is shortened, thereby increasing the energy consumption. SUMMARY

[0003] Therefore, the present application provides an automobile energy-saving gearbox, which can achieve that the power assembly no longer has a "reverse drag" effect on running when the accelerator is released, prolongs the running distance by using the vehicle running inertia, achieves the energy-saving purpose, and can shift gears without stepping on the clutch pedal, thereby improving the operation convenience.

[0004] An automobile energy-saving gearbox comprises a gearbox, an automatic clutch one, an automatic clutch two, a cruising meshing wheel, a high-speed meshing device and a hydraulic retarder, wherein the gearbox is provided with a transmission gear; the automatic clutch one comprises a driving star wheel, a roller and a drum, the driving star wheel is installed on the transmission gear, the driving star wheel is provided with three equally divided rollers, and a group of drums are in correspondence with the driving star wheel for clutch transmission; the automatic clutch two comprises a driven star wheel, a roller and a drum, the drum is connected with the intermediate shaft through the corresponding driven star wheel, the driven star wheel is provided with the roller, and the roller is in correspondence with the inner wall arc groove of the drum; a group of drums on the transmission gear are coaxial with the second shaft, and the second shaft is provided with the high-speed meshing device at the connection position of the hydraulic retarder.

[0005] Further, the second shaft is provided with a synchronizer and other gear teeth, and when the synchronizer is actuated to enter a group of drums, the first shaft and the second shaft are engaged.

[0006] Further, the second shaft is provided with a synchronizer and other gear teeth, and when the synchronizer is actuated to enter a group of drums, the first shaft and the second shaft are engaged.

[0007] Further, the intermediate shaft is provided with the cruising meshing wheel, and the cruising meshing wheel is composed of a yoke and a transmission clutch wheel, and is used for realizing the prohibited sliding state during reversing.

[0008] Further, the high-speed meshing device is composed of a shift fork, a locking roller, a push rod, a meshing star wheel and a jack, the meshing star wheel is connected with the impeller of the hydraulic retarder through the high-speed meshing device, the inner wall of the impeller has a plurality of arc grooves, and the roller at the meshing star wheel is in correspondence with the arc grooves of the impeller.

[0009] Further, when the vehicle is running on a steep slope, the high-speed meshing device actuates the jack through the shift fork, and then drives the locking roller of the meshing star wheel to be combined with the inner wall arc groove of the impeller, so as to drive the hydraulic retarder to generate resistance and slow down the vehicle

[0010] Furthermore, the transmission gear is dynamically connected to the drum on the intermediate shaft. The drum twists the driven planet wheel, allowing the vehicle to coast automatically in all gears except reverse.

[0011] This invention enables automatic coasting and clutchless gear shifting during vehicle operation. Two overrunning clutches are installed within the gearbox, allowing automatic coasting when the accelerator is released in all gears. A set of meshing gears with a movable front end is mounted on the intermediate shaft, placing the vehicle in a no-slip condition during reversing. A high-speed engagement device connected to a hydraulic retarder is installed at the end, allowing engagement and disengagement of the gears when the two shafts are at different speeds, thus achieving the purpose of slowing down and preventing slippage. This ensures vehicle driving safety, reduces pressure on the braking system, suppresses vehicle inertial coasting, and achieves a "reverse drag" effect, resulting in both energy saving and safety. Furthermore, the invention incorporates a hydraulic retarder, which slows the vehicle down during deceleration, reducing pressure on the braking system and achieving more comfortable and safer characteristics. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the energy-saving automotive transmission of the present invention;

[0013] Figure 2 This is a schematic diagram of the coupling structure between the automotive active star wheel and the roller of the present invention;

[0014] Figure 3 This is a schematic diagram of the transmission clutch wheel of the present invention;

[0015] Figure 4 This is a schematic diagram of the high-speed meshing device of the present invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-4 This invention provides an energy-saving automotive transmission, including a transmission 2, an automatic clutch I, an automatic clutch II, a floating engagement wheel 7, a high-speed engagement device 12, and a hydraulic retarder 15, wherein the transmission 2 is equipped with transmission gears 1.

[0018] The automatic clutch includes a drive star wheel 3, rollers 16, and a drum 4; the drive star wheel 3 is mounted on the transmission gear 1, and the rollers 16 are mounted on the drive star wheel 3, with the three rollers 16 evenly distributed (e.g.,Figure 2 As shown, a set of drums 4 corresponds to the clutch transmission of the drive star wheel 3, meaning the drive star wheel 3 drives a set of drums 4. The inner wall of these drums 4 has multiple arc grooves. The set of drums 4 on the transmission gear 1 is coaxial with the second shaft 10. A synchronizer 21 and other gear positions are mounted on the second shaft 10. The intermediate shaft 9 is connected to both the first shaft (transmission input shaft) and the second shaft 10, receiving power from the first shaft. Simultaneously, gears with different numbers of teeth fixed on the intermediate shaft 9 mesh with corresponding gears with different numbers of teeth on the second shaft 10 at different speed ratios as needed, under the control of the transmission mechanism, and transmit power to the second shaft 10.

[0019] The automatic clutch 2 includes a driven star wheel 5, rollers 16, and a drum 6. The drum 6 is connected to the intermediate shaft 9 via corresponding driven star wheels 5. The inner wall of the drum 6 has multiple arc grooves. Three driven star wheels 5 are mounted on the intermediate shaft 9, and their radial positions are staggered at equal angles. Rollers 16 are mounted on the driven star wheels 5, and the rollers 16 correspond to the arc grooves on the inner wall of the drum 6. A freewheeling engagement wheel 7 is mounted on the intermediate shaft 9. The freewheeling engagement wheel 7 consists of a shift fork 8 and a transmission clutch wheel 17. Under the action of an external cylinder, the shift fork 8 drives the freewheeling engagement wheel 7 to connect with the drum 6, which is coaxial with the intermediate shaft 9, thus achieving a non-slip state when reversing.

[0020] A high-speed engagement device 12 is installed at the connection between the dual shaft 10 and the hydraulic retarder 15, such as Figure 4 As shown, the high-speed engagement device 12 consists of a shift fork 11, locking rollers 18, push rods 19, engagement star wheel 20, and push rod 13. The engagement star wheel 20 is connected to the impeller 14 of the hydraulic retarder 15 through the high-speed engagement device 12. The inner wall of the impeller 10 has multiple arc grooves, and the rollers 16 at the engagement star wheel 20 correspond to the arc grooves of the impeller 14. The transmission gear 1 is dynamically connected to the drum 6 on the intermediate shaft 9. Under the push of the external cylinder of the gearbox, the shift fork 11 drives the three push rods 19, which are evenly distributed in the circumferential direction, to extend forward synchronously. This pushes the locking rollers 18 to engage with the multi-arc groove structure on the inner wall of the impeller 10 of the hydraulic retarder 15, so that the hydraulic reaction force of the hydraulic retarder 15 is transmitted to the engagement star wheel 20, which is fixed to the second shaft 10 through a spline, to achieve the purpose of hydraulic retardation.

[0021] The working principle of this invention is as follows:

[0022] The transmission gear 1 drives the drive star wheel 3, which in turn drives a set of drums 4. When the synchronizer 21 is engaged with the set of drums 4, the first and second shafts 10 are engaged, and the vehicle runs in direct drive. When the driver releases the accelerator pedal, the engine is idling, and the vehicle moves forward due to its own inertia. Because there is no "reverse drag" resistance from the powertrain, the travel distance is extended, and the driver reduces the frequency of pressing the accelerator pedal, thus achieving energy saving. When descending a steep slope, the high-speed engagement device 12 moves the push rod 13 via the shift fork 11, which in turn drives the rollers 18 of the engagement star wheel 20 to engage with the arc groove on the inner wall of the impeller 14. This engages the hydraulic retarder 15, generating resistance and slowing down the vehicle's speed, thus achieving safe driving.

[0023] The transmission gear 1 is dynamically connected to the drum 6 on the intermediate shaft 9. The drum 6 twists the driven planet wheel 5, so that all gears except reverse can automatically coast during driving. At this time, the powertrain and the driving system are disconnected, so the clutch can be used without changing gears, reducing the driver's workload. When the vehicle is in reverse gear, the cylinder pushes the shift fork 8, which makes the wandering meshing wheel 7 and the drum 6 engage, realizing the state of prohibiting coasting when reversing.

[0024] This invention integrates an automatic clutch, a freewheeling gearbox 7, a high-speed engagement device 12, and a hydraulic retarder 15 into the transmission 2. Through the application of two sets of automatic clutches, freewheeling gearboxes 7, and high-speed engagement devices 12, the powertrain automatically disengages from the driving system when the driver releases the accelerator pedal in all forward gears except reverse, replacing the function of the transmission disc clutch and enabling easy gear shifting without using the clutch. Because of the automatic disengagement, the "reverse drag" effect of the powertrain is reduced during vehicle coasting, effectively releasing the vehicle's inertia, extending the coasting distance, and reducing the frequency of the driver pressing the accelerator pedal. The hydraulic retarder 15, integrated at the rear end of the transmission 2, automatically connects the second shaft 10 (output shaft) to the impeller of the hydraulic retarder 15 via a shift fork during vehicle braking and steep downhill driving. The hydraulic oil in the hydraulic retarder 15 impedes the rotating impeller and reacts on the second shaft 10 (output shaft), providing braking assistance to the vehicle, thereby reducing wear on the original braking system and increasing safety and smoothness.

[0025] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An energy-saving automotive transmission, characterized in that: The system includes a gearbox (2), an automatic clutch I, an automatic clutch II, a gliding engagement wheel (7), a high-speed engagement device (12), and a hydraulic retarder (15). The gearbox (2) is equipped with transmission gears (1). The automatic clutch I includes a drive star wheel (3), rollers (16), and a drum (4). The drive star wheel (3) is mounted on the transmission gears (1). The drive star wheel (3) is equipped with three equally spaced rollers (16). A set of drums (4) and... The active star wheel (3) corresponds to the clutch transmission; the automatic clutch II includes a passive star wheel (5), rollers (16) and a drum (6). The drum (6) is connected to the intermediate shaft (9) through the corresponding passive star wheel (5). The passive star wheel (5) is equipped with rollers (16), and the rollers (16) correspond to the arc grooves on the inner wall of the drum (6); a set of drums (4) on the transmission gear (1) is coaxial with the second shaft (10), and the second shaft (10) is connected to the hydraulic retarder (15). A high-speed engagement device (12) is installed at the connection point; the high-speed engagement device (12) consists of a shift fork (11), a locking roller (18), a push rod (19), an engagement star wheel (20), and a push rod (13). The engagement star wheel (20) is connected to the impeller (14) of the hydraulic retarder (15) through the high-speed engagement device (12). The inner wall of the impeller (14) has multiple arc grooves, and the rollers (16) at the engagement star wheel (20) correspond to the arc grooves of the impeller (14); in the lower When the slope is steep, the high-speed mesher (12) moves the push rod (13) through the shift fork (11), which in turn drives the locking roller (18) of the meshing star wheel (20) to close with the arc groove on the inner wall of the impeller (14), thereby driving the hydraulic retarder (15) to generate resistance and slow down the vehicle speed; the transmission gear (1) is dynamically connected to the drum (6) on the intermediate shaft (9), and the drum (6) twists the passive star wheel (5), so that all gears except reverse can automatically glide when driving.

2. The automotive energy-saving transmission as described in claim 1, characterized in that: A synchronizer (21) and other gears are mounted on the second shaft (10). When the synchronizer (21) is turned, a set of drums (4) is engaged to make the first shaft and the second shaft (10) engage.

3. The automotive energy-saving transmission as described in claim 1, characterized in that: Three passive star wheels (5) are mounted on the intermediate shaft (9), and the three passive star wheels (5) are radially offset at equal angles.

4. The automotive energy-saving transmission as described in claim 1, characterized in that: A floating engagement wheel (7) is installed on the intermediate shaft (9). The floating engagement wheel (7) consists of a fork (8) and a transmission clutch wheel (17) and is used to achieve a no-slip state when reversing.

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