Motorcycle reverse drive

Abstract

The present application relates to the technical field of motorcycle reversing, in particular to a motorcycle reversing driving device, comprising a box body with a gear mounting cavity, a right gear assembly is movably installed in the box body; the gear assembly comprises a left gear and a right gear arranged left and right, and a middle gear arranged above; a middle gear sliding groove is arranged on the inner wall of the gear mounting cavity, the middle gear can slide along the middle gear sliding groove to achieve engagement and disengagement with the left gear and the right gear; a chain wheel rotating shaft through hole is formed on the box body for the chain wheel rotating shaft to penetrate, one end of the chain wheel rotating shaft is connected with the shaft center of the right gear perpendicularly; a one-way clutch chain wheel is sleeved on the outer end of the chain wheel rotating shaft, and the one-way clutch chain wheel can engage with the vehicle chain. The motorcycle reversing driving device provided by the scheme not only has simple structure and is easy to install, but also provides three modes for the control of the vehicle, further improving the reversing stability of the rider.

Description

Technical Field

[0001] This invention relates to the field of motorcycle reversing technology, and more particularly to a motorcycle reversing drive device. Background Technology

[0002] Motorcycles are vehicles powered by gasoline engines and steered by the front wheel operated by handlebars. They are lightweight, agile, and fast, and are widely used for patrolling, passenger and freight transportation, as well as sports equipment. They are a convenient and fast means of transportation.

[0003] Existing heavy motorcycles do not have a reverse function, so the rider must manually operate them to reverse in order to complete a U-turn. This requires the rider to first dismount, then stand on one side of the motorcycle and push it backward. Because the motorcycle is heavy, a great deal of force is required for manual operation, and even a slight mistake can easily cause the motorcycle to tip over, resulting in personal injury.

[0004] Chinese utility model patent CN2778671Y discloses a fully automatic electric reversing device for motorcycles. It features a transmission rubber wheel driven by a motor, which has two positions controlled by a cable. In one position, the wheel is pulled and pressed against the side edge of the wheel hub, creating frictional transmission; in the other position, it is reset and disengaged from the wheel hub. Through motor drive, friction wheel transmission, and cable-operated clutch, the motorcycle achieves automatic reversing. However, this device primarily uses the rubber wheel to drive the wheel hub to achieve reversing. Not only is the structure complex, requiring the removal of the rear wheel for installation, but disabling the reversing function also necessitates a cable to the handlebars for manual operation, further increasing the cumbersomeness of installation and operation.

[0005] Therefore, a new technical solution is urgently needed to solve this technical problem. Summary of the Invention

[0006] The purpose of this invention is to overcome the problems of the prior art and provide a motorcycle reversing drive device to solve the technical problems of complex structure, cumbersome installation and control, and poor driving experience of existing motorcycle reversing devices.

[0007] The above objectives are achieved through the following technical solutions:

[0008] A motorcycle reversing drive device includes a first housing and a second housing that can be interlocked. The first housing and the second housing, when interlocked, form a box with a right gear mounting cavity, in which a right gear assembly is movably mounted.

[0009] The gear assembly includes a left gear and a right gear arranged on the left and right sides, and a middle gear located at the top; the middle gear can mesh with the left gear and the right gear respectively under its own weight, and rotate counterclockwise under the clockwise drive of the left gear, indirectly driving the right gear to rotate clockwise; it can also disengage from the right gear and / or the left gear under the drive of the right gear rotating clockwise alone.

[0010] Symmetrical intermediate gear grooves are provided on the inner wall of the gear mounting cavity. The intermediate gear can slide along the intermediate gear grooves to achieve engagement and disengagement with the left gear and the right gear.

[0011] A sprocket shaft through hole is provided on the first housing for the sprocket shaft to pass through. One end of the sprocket shaft passes through the sprocket shaft through hole and enters the gear mounting cavity, and is perpendicularly connected to the axis of the right gear. A one-way clutch sprocket is sleeved on the outer end of the sprocket shaft. The one-way clutch sprocket can mesh with the vehicle chain. The right gear can drive the one-way clutch sprocket to rotate synchronously clockwise through the sprocket shaft. The one-way clutch sprocket can rotate freely counterclockwise relative to the sprocket shaft.

[0012] Furthermore, the intermediate gear groove is an inclined waist-shaped groove. Correspondingly, the intermediate gear is sleeved on the intermediate gear shaft, and the two ends of the intermediate gear shaft are respectively placed in the intermediate gear groove, which can drive the intermediate gear to slide along the intermediate gear groove.

[0013] Furthermore, the axis of the intermediate gear groove is coaxial with the center of the left gear.

[0014] Furthermore, the outer diameter of the right gear is larger than the outer diameter of the left gear, and the outer diameter of the left gear is larger than the outer diameter of the intermediate gear.

[0015] Furthermore, the centers of the left gear and the right gear are located on the same horizontal line.

[0016] Furthermore, it also includes a chain clamping mechanism for pressing the vehicle chain against the one-way clutch sprocket.

[0017] Furthermore, the chain clamping mechanism is located below the box body and includes a roller support bracket and a pair of rollers; the rollers are movably connected to one end of the roller shaft, and the two roller shafts are respectively connected to the roller support bracket.

[0018] Furthermore, the roller support bracket includes roller slide blocks and roller slide rails that can slide against each other, and roller mounting seats and roller height adjustment seats are respectively provided along the upper and lower ends of the roller slide rails; the roller mounting seats are connected to the bottom surface of the box body by screws; the roller height adjustment seats are provided with threaded holes that match the adjustment screws, and the adjustment screws pass through the threaded holes and act on the bottom surface of the roller slide blocks;

[0019] The roller slide includes a roller groove that matches the roller rail, and wing plates that are symmetrically arranged about the roller groove. The roller shaft is vertically connected to each of the two wing plates.

[0020] Furthermore, a vertical roller adjustment groove is provided on the roller slide rail, and correspondingly, a locking screw hole matching the locking screw is provided in the roller slide groove. The locking screw passes through the roller adjustment groove and is screwed into the locking screw hole.

[0021] Furthermore, a through hole for the motor shaft of the power supply is provided on the second housing. After passing through the through hole, the motor shaft enters the gear mounting cavity and connects with the left gear.

[0022] Beneficial effects

[0023] The motorcycle reversing drive device provided by this invention uses a gear assembly to drive a one-way clutch sprocket, which in turn acts on the vehicle chain for electric drive, thus achieving electric reversing of the vehicle. It also allows for short-distance manual pushing reversing, as the resulting rotational force is not transmitted to the drive motor via the gear assembly, ensuring the drive motor's lifespan. Furthermore, the device does not need to be removed or repositioned during vehicle forward movement; the one-way clutch sprocket rotates counter-clockwise synchronously with the vehicle chain, and the rotational force is not transmitted to the sprocket shaft or gear assembly, thus not affecting the device. This motorcycle reversing drive device is not only simple in structure and easy to install, but also provides three control modes for the vehicle, further improving the rider's reversing stability. Attached Figure Description

[0024] Figure 1 This is a first-view structural diagram of the motorcycle reversing drive device described in this invention;

[0025] Figure 2 This is a second-view structural diagram of the motorcycle reversing drive device described in this invention;

[0026] Figure 3 This is a third-view structural diagram of the motorcycle reversing drive device described in this invention;

[0027] Figure 4 This is an exploded view of the motorcycle reversing drive device described in this invention;

[0028] Figure 5 This is a schematic diagram of the structure of the first housing and the second housing in the motorcycle reversing drive device of the present invention;

[0029] Figure 6 This is a first-view structural schematic diagram of the gear assembly in the motorcycle reversing drive device of the present invention;

[0030] Figure 7 This is a second-view structural diagram of the gear assembly in the motorcycle reversing drive device of the present invention;

[0031] Figure 8 This is a schematic diagram showing the interaction between the one-way clutch sprocket and the two support rollers on the vehicle chain in the motorcycle reversing drive device of the present invention;

[0032] Figure 9 This is a schematic diagram of the motorcycle reversing drive device according to the present invention after the motor and connectors have been installed;

[0033] Figure 10 This is a schematic diagram of the motorcycle reversing drive device described in this invention applied to a motorcycle.

[0034] Illustration markings:

[0035] 1-Box body, 101-First shell, 102-Second shell, 103-Sprocket shaft through hole, 104-Shaft through hole;

[0036] 2-Gear assembly, 201-Left gear, 202-Right gear, 203-Intermediate gear;

[0037] 3-Intermediate gear slide groove;

[0038] 4-Sprocket shaft;

[0039] 5-One-way clutch sprocket;

[0040] 6-Intermediate gear shaft;

[0041] 7-Chain clamping mechanism, 701-Roller bracket, 702-Roller, 703-Roller shaft, 704-Roller slide block, 705-Roller slide rail, 706-Roller mounting base, 707-Roller height adjustment base, 708-Roller slide groove, 709-Wing plate, 710-Screw, 711-Threaded hole, 712-Adjusting screw, 713-Roller adjusting slot, 714-Locking screw, 715-Locking screw hole;

[0042] 8-Connector, 801-Fixing Bolt;

[0043] 9-Motor, 901-Motor shaft;

[0044] 10-Vehicle chain;

[0045] 11-Forklift;

[0046] 12-Motorcycle;

[0047] 13-Roller bearing. Detailed Implementation

[0048] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. The described embodiments are merely some, not all, of the embodiments of the present invention. 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.

[0049] like Figures 1-7 As shown in Figure 10, a motorcycle reversing drive device includes a first housing 101 and a second housing 102 that can be interlocked. When the first housing 101 and the second housing 102 are interlocked, they form a box 1 with a right gear mounting cavity. A right gear assembly 2 is movably mounted within the gear mounting cavity.

[0050] The gear assembly 2 includes a left gear 201 and a right gear 202 arranged on the left and right sides, and a middle gear 203 located at the top. Under the action of its own gravity, the middle gear 203 can mesh with the left gear 201 and the right gear 202 respectively, and rotate counterclockwise under the clockwise drive of the left gear 201, indirectly driving the right gear 202 to rotate clockwise; it can also disengage from the right gear 202 and / or the left gear 201 under the drive of the right gear 202 rotating clockwise alone.

[0051] Symmetrical intermediate gear grooves 3 are provided on the inner wall of the gear mounting cavity. The intermediate gear 203 can slide along the intermediate gear grooves 3 to achieve engagement and disengagement with the left gear 201 and the right gear 202.

[0052] A sprocket shaft through hole 103 is provided on the first housing 101 for the sprocket shaft 4 to pass through. One end of the sprocket shaft 4 passes through the sprocket shaft through hole 103 and enters the gear mounting cavity, and is perpendicularly connected to the axis of the right gear 202. A one-way clutch sprocket 5 is sleeved on the outer end of the sprocket shaft 4. The one-way clutch sprocket 5 can mesh with the vehicle chain 10. The right gear 202 can drive the one-way clutch sprocket 5 to rotate synchronously clockwise through the sprocket shaft 4. The one-way clutch sprocket 5 can rotate freely counterclockwise relative to the sprocket shaft 4.

[0053] It should be noted that the one-way clutch sprocket 5 in this device is a sprocket with a clutch function. When rotating clockwise, the clutch is locked, and when rotating counterclockwise, the clutch is released.

[0054] In order to make the rotation of the gear assembly 2 and the sprocket shaft 4 more flexible and stable, this embodiment also provides a roller bearing 13 at the connection between the gear assembly 2 and the sprocket shaft 4 and the first housing 101 and the second housing 102.

[0055] In addition, such as Figure 7 and 8 As shown, the device also includes a connector 8 for fixing the motorcycle reversing drive device to the fork 11 of the motorcycle 12 so that the one-way clutch sprocket 5 can stably act on the position of the vehicle chain 10 and form effective engagement.

[0056] Specifically, the connector 8 is a mounting base, which is located on the top of the box body 1 and is fixed to the fork 11 of the motorcycle 12 by fixing bolts 801.

[0057] The motorcycle reversing drive device provided in this embodiment offers three control modes for the motorcycle 12:

[0058] Mode 1 Electric Drive Reverse

[0059] Initially, the intermediate gear 203, under its own weight, meshes with both the left gear 201 and the right gear 202. The left gear 201 serves as the drive output, rotating clockwise under the drive of an external drive device. This clockwise rotation of the left gear 201 applies downward pressure to the intermediate gear 203, causing it to rotate counterclockwise. The intermediate gear 203 indirectly drives the right gear 202 to rotate clockwise. The right gear 202, through the sprocket shaft 4, drives the one-way clutch sprocket 5 to rotate synchronously clockwise, ultimately driving the vehicle chain 10 to drive the wheels in reverse, enabling reverse driving over any distance.

[0060] Two-person reverse mode

[0061] Initially, the intermediate gear 203 is engaged with the left gear 201 and the right gear 202 under its own weight. When the vehicle is pushed in reverse, the vehicle chain 10 rotates clockwise under the drive of the wheels, which in turn drives the one-way clutch sprocket 5, which is engaged with the vehicle chain 10, to rotate clockwise. Since the one-way clutch sprocket 5 is engaged and locked in clockwise, it will drive the sprocket shaft 4 connected to it to rotate clockwise, which indirectly drives the right gear 202 to rotate clockwise.

[0062] The intermediate gear 203, under the rotational force of the right gear 202, is subjected to an upward thrust, causing the intermediate gear 203 to move along the intermediate gear groove 3 to disengage from the right gear 202. This disengages the intermediate gear 203 from the right gear 202, preventing the rotational driving force of the right gear 202 from being transmitted to the left gear 201. Consequently, the left gear 201 will not drive the rotation of the motor shaft 901 when it is connected to the motor shaft 901, thus achieving interference-free operation of the motor 9 and effectively extending the service life of the motor 9.

[0063] Mode 3: Vehicles move forward

[0064] Initially, the intermediate gear 203 is engaged with the left gear 201 and the right gear 202 under its own weight. When the vehicle moves forward, the vehicle chain 10 rotates counterclockwise under the drive of the wheels, which in turn drives the one-way clutch sprocket 5, which is engaged with the vehicle chain 10, to rotate counterclockwise. Since the clutch is disengaged in the counterclockwise rotation, the one-way clutch sprocket 5 rotates freely counterclockwise relative to the sprocket shaft 4, and the gear assembly 2 does not function, thereby reducing the working loss of this drive device and effectively extending the service life of the device.

[0065] like Figure 5 As shown, in this embodiment, the intermediate gear groove 3 is an inclined waist-shaped groove. Correspondingly, the intermediate gear 203 is sleeved on the intermediate gear shaft 6. The two ends of the intermediate gear shaft 6 are respectively placed in the intermediate gear groove 3, and can drive the intermediate gear 203 to slide along the intermediate gear groove 3; thereby realizing engagement with the left gear 201 and the right gear 202, or separation from the right gear 202 and / or the left gear 201.

[0066] It should be noted that the intermediate gear 203, after being sleeved on the intermediate gear shaft 6, rotates synchronously under the action of external force.

[0067] like Figure 6 and 7 As shown, as an optimization of the intermediate gear slide groove 3, in this embodiment, the axis of the intermediate gear slide groove 3 is coaxial with the center of the left gear 201.

[0068] Specifically, this structure facilitates the better transmission of driving force to the right gear 202 when the left gear 201 is used as the drive output end.

[0069] In this embodiment, the outer diameter of the right gear 202 is greater than the outer diameter of the left gear 201, and the outer diameter of the left gear 201 is greater than the outer diameter of the middle gear 203.

[0070] The centers of the left gear 201 and the right gear 202 are located on the same horizontal line.

[0071] This structure facilitates better meshing and disengagement of the gear assembly in both electric-driven and manually-driven reversing modes.

[0072] As a specific embodiment of this invention, the angle between the axis formed by the center of the intermediate gear groove 3 and the center of the left gear 201 and the axis formed by the center of the left gear 201 and the center of the right gear 202 is 30° to 70°, and preferably 45° in this embodiment.

[0073] like Figure 4 As shown, it also includes a chain pressing mechanism 7, which is used to press the vehicle chain 10 against the one-way clutch sprocket 5 so that the one-way clutch sprocket 5 can better engage with the vehicle chain 10.

[0074] As a specific embodiment of this solution, the chain clamping mechanism 7 is disposed below the box body 1, including a roller bracket 701 and a pair of rollers 702; the rollers 702 are movably connected to one end of the roller shaft 703, and the two roller shafts 703 are respectively connected to the roller bracket 701; the center of the one-way clutch sprocket 5 and the circles of the two rollers 702 form an isosceles triangle, and the one-way clutch sprocket 5 and the vehicle chain 10 located between the two rollers 702 form a tight engagement.

[0075] The roller support bracket 701 includes a roller slide block 704 and a roller slide rail 705 that can slide together. A roller mounting seat 706 and a roller height adjusting seat 707 are respectively provided along the upper and lower ends of the roller slide rail 705. The roller mounting seat 706 is connected to the bottom surface of the box body 1 by a screw 710. A threaded hole 711 matching the adjusting screw 712 is provided on the roller height adjusting seat 707. The adjusting screw 712 passes through the threaded hole 711 and acts on the bottom surface of the roller slide block 704.

[0076] The roller slide block 704 includes a roller groove 708 that matches the roller slide rail 705, and wing plates 709 that are symmetrically arranged about the roller groove 708. The roller shafts 703 are vertically connected to the two wing plates 709 respectively.

[0077] In addition, a vertical roller adjustment slot 713 is provided on the roller slide rail 705. Correspondingly, a locking screw hole 715 matching the locking screw 714 is provided on the roller slide groove 708. The locking screw 714 passes through the roller adjustment slot 713 and is screwed into the locking screw hole 715 to lock the roller slide block 704 and the roller slide rail 705.

[0078] Specifically, as a specific embodiment of this solution, by adjusting the height of the adjusting screw 712 relative to the threaded hole 711, the displacement of the roller slide block 704 relative to the roller slide rail 705 is adjusted, ultimately achieving the adjustment of the height between the horizontal line formed by the two rollers 702 and the one-way clutch sprocket 5; then, by tightening the locking screw 714, the adjusted height is locked and fixed.

[0079] This structure allows the motorcycle reversing drive device to better adapt to different models of vehicle chains 10 and different motorcycles 12.

[0080] like Figure 3 , 5 As shown in Figure 9, a shaft through hole 104 is provided on the second housing 102 through which the motor shaft 901 of the power supply 9 passes. After passing through the shaft through hole 104, the motor shaft 901 enters the gear mounting cavity and is connected to the left gear 201.

[0081] Specifically, under the clockwise drive of the motor shaft 901, the left gear 201 rotates clockwise and drives the middle gear 203 to rotate counterclockwise. The middle gear 203 indirectly drives the right gear 202 to rotate clockwise. The right gear 202 drives the one-way clutch sprocket 5 to rotate synchronously clockwise through the sprocket shaft 4, ultimately driving the vehicle chain 10 to drive the wheels in reverse.

[0082] The above description is merely illustrative of the embodiments of the present invention and is not intended to limit the present invention. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A motorcycle reversing drive device, characterized in that, It includes a first housing (101) and a second housing (102) that can be interlocked. The first housing (101) and the second housing (102) interlock to form a box (1) with a gear mounting cavity. A gear assembly (2) is movably installed in the gear mounting cavity. The gear assembly (2) includes a left gear (201) and a right gear (202) arranged on the left and right sides, and a middle gear (203) located at the top; the middle gear (203) can mesh with the left gear (201) and the right gear (202) respectively under its own weight, and rotate counterclockwise under the clockwise drive of the left gear (201), indirectly driving the right gear (202) to rotate clockwise; it can also disengage from the right gear (202) and / or the left gear (201) under the drive of the right gear (202) rotating clockwise alone; Symmetrical intermediate gear grooves (3) are provided on the inner wall of the gear mounting cavity. The intermediate gear (203) can slide along the intermediate gear grooves (3) to achieve engagement and disengagement with the left gear (201) and the right gear (202). A sprocket shaft through hole (103) is provided on the first housing (101) for the sprocket shaft (4) to pass through. One end of the sprocket shaft (4) passes through the sprocket shaft through hole (103) and enters the gear mounting cavity, and is perpendicularly connected to the axis of the right gear (202). A one-way clutch sprocket (5) is sleeved on the outer end of the sprocket shaft (4). The one-way clutch sprocket (5) can mesh with the vehicle chain (10). The right gear (202) can drive the one-way clutch sprocket (5) to rotate clockwise synchronously through the sprocket shaft (4). The one-way clutch sprocket (5) can rotate freely counterclockwise relative to the sprocket shaft (4). The intermediate gear groove (3) is an inclined waist-shaped groove. Correspondingly, the intermediate gear (203) is sleeved on the intermediate gear shaft (6). The two ends of the intermediate gear shaft (6) are respectively placed in the intermediate gear groove (3) and can drive the intermediate gear (203) to slide along the intermediate gear groove (3). In the initial state, the intermediate gear (203) is engaged with the left gear (201) and the right gear (202) under its own gravity. The left gear (201) rotates clockwise, applying downward pressure to the intermediate gear (203). The right gear (202) rotates clockwise, and the intermediate gear (203) is pushed upward by the rotational force of the right gear (202), causing the intermediate gear (203) to move along the intermediate gear groove (3) to disengage from the right gear (202), thereby releasing the engagement between the intermediate gear (203) and the right gear (202).

2. The motorcycle reversing drive device according to claim 1, characterized in that, The axis of the intermediate gear groove (3) is coaxial with the center of the intermediate gear (203).

3. The motorcycle reversing drive device according to claim 1, characterized in that, The outer diameter of the right gear (202) is greater than the outer diameter of the left gear (201), and the outer diameter of the left gear (201) is greater than the outer diameter of the intermediate gear (203).

4. The motorcycle reversing drive device according to claim 3, characterized in that, The centers of the left gear (201) and the right gear (202) are located on the same horizontal line.

5. The motorcycle reversing drive device according to claim 1, characterized in that, It also includes a chain clamping mechanism (7) for pressing the vehicle chain (10) against the one-way clutch sprocket (5).

6. The motorcycle reversing drive device according to claim 5, characterized in that, The chain clamping mechanism (7) is located below the box body (1) and includes a roller bracket (701) and a pair of rollers (702); the rollers (702) are movably connected to one end of the roller shaft (703), and the two roller shafts (703) are respectively connected to the roller bracket (701).

7. The motorcycle reversing drive device according to claim 6, characterized in that, The roller support bracket (701) includes roller slide blocks (704) and roller slide rails (705) that can slide together. Roller mounting seats (706) and roller height adjustment seats (707) are respectively provided at the upper and lower ends of the roller slide rails (705). The roller mounting seats (706) are connected to the bottom surface of the box body (1) by screws (710). The roller height adjustment seats (707) are provided with threaded holes (711) that match the adjustment screws (712). The adjustment screws (712) pass through the threaded holes (711) and act on the bottom surface of the roller slide blocks (704). The roller slide (704) includes a roller groove (708) that matches the roller slide rail (705) and a wing plate (709) arranged symmetrically about the roller groove (708). The roller shaft (703) is vertically connected to each of the two wing plates (709).

8. The motorcycle reversing drive device according to claim 7, characterized in that, A vertical roller adjustment groove (713) is provided on the roller slide rail (705). Correspondingly, a locking screw hole (715) matching the locking screw (714) is provided on the roller slide groove (708). The locking screw (714) passes through the roller adjustment groove (713) and is screwed into the locking screw hole (715).

9. The motorcycle reversing drive device according to claim 1, characterized in that, The second housing (102) has a shaft through hole (104) through which the motor shaft (901) of the power supply motor (9) passes. After passing through the shaft through hole (104), the motor shaft (901) enters the gear mounting cavity and connects with the left gear (201).

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