Gear box for motorcycle windshield lifting device
By employing a design that uses four compound gears to connect the motor and the output shaft in the motorcycle windshield lifting device, the problem of insufficient torque is solved, enabling stable lifting and convenient adjustment of the large windshield.
Patent Information
- Application Number
- CN202422916885.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The gearboxes of existing motorcycle windshield lift systems lack sufficient torque when dealing with large windshields, making it difficult to fix the windshield at a certain height and causing inconvenience in adjustment.
Four compound gears are used to connect the motor and the output shaft. The torque is increased by gradually decreasing the torque through the worm gear and compound gears and then transmitted to the output shaft to enhance the deceleration effect.
It enables stable raising and lowering of the large windshield, improves equipment efficiency, and facilitates accurate adjustment of the windshield.
Smart Images
Figure CN223708490U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to lifting device accessory technical field, specifically a gear box for motorcycle windshield lifting device. BACKGROUND
[0002] The windshield of the motorcycle is usually provided with a lifting device to adjust the height of the windshield to achieve better wind shielding effect flexibly. The lifting device usually cooperates with a gear box to slow down the lifting movement.
[0003] With the change of market demand, the windshield of the motorcycle is getting larger and larger, so the requirement for the speed reduction of the lifting device is getting higher and higher. When the existing gear box is used to slow down the large windshield, the area and weight of the windshield are too large, so the windshield will quickly drop when the height of the windshield is adjusted due to the insufficient torque of the gear box, so it is not easy to fix the windshield at a certain height and it is inconvenient to adjust the height of the windshield. SUMMARY
[0004] The utility model discloses a gear box for motorcycle windshield lifting device to solve the technical problem of insufficient torque.
[0005] In order to solve the above technical problem, the utility model provides the following optimization technical scheme:
[0006] A gear box for motorcycle windshield lifting device, comprising a shell, a motor, a speed reduction assembly and a power output shaft, the motor is fixed on the outer wall of the shell, the output shaft of the motor extends into the shell, the speed reduction assembly is arranged in the shell, the output shaft of the motor is sleeved with a worm and is engaged with the speed reduction assembly through the worm, the power output shaft is arranged in the shell and its two ends extend out of the shell, the power output shaft is sleeved with a gear and is engaged with the speed reduction assembly through the gear, the speed reduction assembly comprises a first compound gear, a second compound gear, a third compound gear and a fourth compound gear, the large gear of the first compound gear is engaged with the worm, the small gear of the first compound gear is engaged with the large gear of the second compound gear, the small gear of the second compound gear is engaged with the large gear of the third compound gear, the small gear of the third compound gear is engaged with the large gear of the fourth compound gear, and the small gear of the fourth compound gear is engaged with the gear.
[0007] Further, the shell comprises a bottom shell and a cover plate, the bottom shell and the cover plate are detachably connected and form a containing cavity, the inner wall of the bottom shell is provided with four shaft pins, and the four shaft pins are respectively used for the first compound gear, the second compound gear, the third compound gear and the fourth compound gear to be sleeved thereon.
[0008] Further, the output shaft of the motor is sleeved with two first gaskets, and the two first gaskets are located at two ends of the worm respectively.
[0009] Further, a second gasket is arranged between the first composite gear and the worm, and the second gasket is sleeved on the shaft pin corresponding to the first composite gear.
[0010] Further, a first shaft sleeve is sleeved on the shaft pin corresponding to the second composite gear.
[0011] Further, a connecting portion is arranged on the side surface of the bottom shell and is used for being fixed on an external structure.
[0012] Further, the connecting portion comprises four connecting ears.
[0013] Further, the axis of the motor is perpendicular to the axis of the output shaft.
[0014] Further, the output shaft is arranged in a left-right symmetry relative to the shell.
[0015] Further, the output shaft is sleeved with two second shaft sleeves, and the two second shaft sleeves are located at two ends of the gear respectively.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] The lifting device gear box provided by the utility model is provided with a first composite gear, a second composite gear, a third composite gear and a fourth composite gear, four composite gears are used to connect the motor and the output shaft, so that the torque of the motor is transmitted to the output shaft by the four composite gears in a step-by-step decreasing manner, the torque is large, can support the lifting of a large windshield, is convenient for adjusting the height of the windshield, the speed reduction ratio is increased in the limited space in the shell, and the overall rigidity is improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of the utility model.
[0019] Figure 2 It is a structural explosion diagram of the utility model.
[0020] Figure 3 It is a structural section view of the utility model.
[0021] Figure 4 It is Figure 3 the enlarged view of A.
[0022] In the figure: 1, the shell; 2, the motor; 3, the output shaft; 4, the worm; 5, the first composite gear; 6, the second composite gear; 7, the third composite gear; 8, the fourth composite gear; 9, the gear; 10, the bottom shell; 11, the cover plate; 12, the shaft pin; 13, the first gasket; 14, the second gasket; 15, the first shaft sleeve; 16, the connecting lug; 17, the second shaft sleeve. DETAILED DESCRIPTION
[0023] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0024] The gear box provided by the present application includes but is not limited to being applied to a motorcycle windshield lifting device, and can also be applied to other lifting devices and turnover devices.
[0025] Referring to Figures 1-4 A gear box for a motorcycle windshield lifting device includes a shell 1, a motor 2, a speed reduction assembly, and an output shaft 3. The motor 2 is fixed to the outer wall of the shell 1, and its output shaft extends into the shell 1. The speed reduction assembly is arranged in the shell 1. The output shaft of the motor 2 is sleeved with a worm 4, and the worm 4 is engaged with the speed reduction assembly. The output shaft 3 is arranged in the shell 1 and extends out of the shell 1 at both ends. The output shaft 3 is sleeved with a gear 9 and engaged with the speed reduction assembly through the gear 9. The speed reduction assembly reduces the speed of the motor 2 and increases the torque of the motor 2. After the torque of the motor 2 is increased, the speed reduction assembly is transmitted to the gear 9 of the output shaft 3, so that the output torque of the output shaft 3 is large enough to adapt to the large windshield of the existing motorcycle.
[0026] The reduction gear assembly comprises a first compound gear 5, a second compound gear 6, a third compound gear 7 and a fourth compound gear 8, the large gear of the first compound gear 5 is engaged with the worm 4, the pinion of the first compound gear 5 is engaged with the large gear of the second compound gear 6, the pinion of the second compound gear 6 is engaged with the large gear of the third compound gear 7, the pinion of the third compound gear 7 is engaged with the large gear of the fourth compound gear 8, and the pinion of the third compound gear 7 is engaged with the gear 9. The four compound gears increase the torque of the motor 2, specifically, the worm 4 is engaged with the large gear of the first compound gear 5, the pinion of the first compound gear 5 is engaged with the large gear of the second compound gear 6, and so on, the torque of the motor 2 is gradually increased via the first compound gear 5, the second compound gear 6, the third compound gear 7 and the fourth compound gear 8, and then transmitted to the gear of the output shaft 3, so as to increase the torque, when adjusting the windshield height, the windshield descending speed is greatly reduced, and the windshield height can be more conveniently and accurately adjusted.
[0027] It is additionally explained that the first compound gear 5 and the second compound gear 6 are of the same size, the third compound gear 7 and the fourth compound gear 8 are of the same size, and the diameter of the third compound gear 7 is greater than that of the first compound gear 5.
[0028] In the embodiment, the shell 1 comprises a bottom shell 10 and a cover plate 11, the bottom shell 10 is detachably connected with the cover plate 11 and forms a containing cavity, the reduction gear assembly is arranged in the containing cavity, and the output shaft of the motor 2 also extends into the containing cavity, the inner wall of the bottom shell 10 is provided with four shaft pins 12, and the four shaft pins 12 are respectively used for sleeving the first compound gear 5, the second compound gear 6, the third compound gear 7 and the fourth compound gear 8.
[0029] It is additionally explained that the four shaft pins 12 are detachably connected to the inner wall of the bottom shell 10, specifically, the bottom shell 10 has four slot positions, and the four shaft pins 12 are respectively tightly inserted into the four slot positions.
[0030] In the embodiment, the output shaft of the motor 2 is also sleeved with two first gaskets 13, and the two first gaskets 13 are respectively located at two ends of the worm 4. The two first gaskets 13 play a role in stabilizing the worm 4, avoiding tooth disengagement of the worm 4 when the motor 2 works, making the overall transmission more stable, and bearing higher impact force.
[0031] In the embodiment, a second gasket 14 is arranged between the first compound gear 5 and the worm 4, and the second gasket 14 is sleeved on the shaft pin 12 corresponding to the first compound gear 5. Since there is an axial force in the worm 4 transmission, the second gasket 14 is arranged between the first compound gear 5 and the worm 4, so as to prevent intermetallic friction of the first compound gear 5 when subjected to force and reduce noise.
[0032] In the embodiment, the shaft pin of the second compound gear 6 is sleeved with a first shaft sleeve 15, which limits the second compound gear 6 to a specified height of the box.
[0033] In the embodiment, the side of the bottom shell 10 is provided with a connecting part for fixing on an external structure. Specifically, the connecting part includes four connecting ears 16, which are more convenient to install and more stable to install.
[0034] In the embodiment, the axis of the motor 2 is perpendicular to the axis of the output shaft 3. The output shaft 3 is symmetrically arranged relative to the shell 1, which is convenient to install and has a beautiful appearance.
[0035] In the embodiment, the output shaft 3 is sleeved with two second shaft sleeves 17, which are respectively arranged at the two ends of the gear 9, so that the transmission of the output shaft 3 is more stable.
[0036] The above is only the specific embodiment of the present application, so that those skilled in the art can understand or implement the present application. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.
Claims
1. A gear box for a motorcycle windshield lifting device, comprising a housing, a motor, a reduction assembly and an output shaft, the motor is fixed on the outer wall of the housing, the output shaft of the motor extends into the housing, the reduction assembly is arranged in the housing, the output shaft of the motor is sleeved with a worm and engages with the reduction assembly through the worm, the output shaft is arranged in the housing and extends out of the housing at both ends, the output shaft is sleeved with a gear and engages with the reduction assembly through the gear, characterized in that, The speed reduction assembly comprises a first compound gear, a second compound gear, a third compound gear and a fourth compound gear, the large gear of the first compound gear is engaged with the worm, the pinion of the first compound gear is engaged with the large gear of the second compound gear, the pinion of the second compound gear is engaged with the large gear of the third compound gear, the pinion of the third compound gear is engaged with the large gear of the fourth compound gear, and the pinion of the fourth compound gear is engaged with the gear; the shell comprises a bottom shell and a cover plate, the side of the bottom shell is provided with a connecting part for fixing on an external structure, and the connecting part comprises four connecting ears.
2. A gear case for a motorcycle windscreen wiper according to claim 1, characterized in that, The bottom shell and the cover plate are detachably connected and form a containing cavity, the inner wall of the bottom shell is provided with four shaft pins, and the first compound gear, the second compound gear, the third compound gear and the fourth compound gear are sleeved on the shaft pins respectively.
3. A gear case for a motorcycle windscreen wiper according to claim 1, wherein The output shaft of the motor is further sleeved with two first gaskets, and the two first gaskets are located at two ends of the worm respectively.
4. A gear case for a motorcycle windscreen wiper according to claim 2, wherein A second gasket is arranged between the first compound gear and the worm, and the second gasket is sleeved on the shaft pin corresponding to the first compound gear.
5. A gear case for a motorcycle windscreen wiper according to claim 1, wherein A first shaft sleeve is further sleeved on the shaft pin corresponding to the second compound gear.
6. A gear case for a motorcycle windscreen wiper according to claim 1, wherein The axis of the motor is perpendicular to the axis of the output shaft.
7. A gear case for a motorcycle windscreen wiper as defined in claim 1, wherein The output shaft is arranged in left-right symmetry relative to the shell.
8. A gear case for a motorcycle windscreen wiper according to claim 1, wherein The output shaft is further sleeved with two second shaft sleeves, and the two second shaft sleeves are located at two ends of the gear respectively.