Gearbox gear shifting mechanism
By improving the shifting mechanism of the H-type gearbox, including the pawl, rollers, shift drum, and shift fork, the problem of misoperation of the H-type gearbox in track driving has been solved, shifting efficiency has been improved and costs have been reduced, making it suitable for lower-class racing teams.
Patent Information
- Application Number
- CN202422548732.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-10-22
AI Technical Summary
In the field of motor vehicle racing, H-type manual gearboxes are prone to shifting errors during track driving, increasing the risk of misoperation and reducing shifting efficiency. In addition, sequential gearboxes are expensive and take up a lot of space, making it difficult to promote them in lower-class racing teams.
Design a gearbox shifting mechanism, including a pawl, rollers, shift drum one, shift drum two, and shift fork. By improving the shifting logic of the H-type gearbox, reduce misoperation, improve shifting efficiency, and reduce costs.
It reduces misoperation, shortens shift time, improves shift efficiency, and lowers costs in H-type gearboxes, making it suitable for lower-class racing teams.
Smart Images
Figure CN223806616U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a gear shifting mechanism technical field, specifically is a gearbox gear shifting mechanism. BACKGROUND
[0002] In the field of motor vehicle racing, most of the low-specification events use H-shaped manual gearbox, and during the fierce driving process on the track, gear shifting errors often occur due to severe shaking, which is because the H-shaped gear shifting mechanism has two variable shafts, x-axis and y-axis, so the driver needs to accurately find the appropriate gear x-axis and y-axis in a very short time under blind operation, which not only increases the risk of misoperation, but also reduces the gear shifting efficiency and increases the gear shifting time, which means that the accelerator needs to be released or semi-released for a long time, which will cause the engine speed to decrease and affect the race results.
[0003] To solve this problem, people's solution in the past was to replace the entire gearbox with a sequential gearbox, but due to the structural problem of the sequential gearbox, it occupies more space in the car, and because the sequential gearbox must use spur gears, it is not only more prone to wear, but also more difficult to process, so the price is naturally high, and the entry-level sequential gearbox on the market is mostly around 100,000 yuan, which greatly exceeds the purchasing power of low-group race car teams.
[0004] Therefore, a low-cost sequential logical gear shifting mechanism needs to be researched. SUMMARY
[0005] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology, and to provide a gearbox gear shifting mechanism.
[0006] To solve the above-mentioned technical problem, the technical scheme provided by the utility model is a gearbox gear shifting mechanism: including a pawl, a roller, a gear shifting drum one, a gear shifting drum two, and a shift fork;
[0007] One side of the roller is provided with a connecting column, the pawl is provided with a connecting groove matched with the connecting column, the pawl is connected with the roller through the connecting groove and the connecting column, the other side of the roller is provided with a driving bevel gear, one end of the gear shifting drum one is fixedly connected with a driven bevel gear, the driven bevel gear is engaged with the driving bevel gear, the gear shifting drum one is fixedly connected with a bevel gear one, the gear shifting drum two is fixedly connected with a bevel gear two engaged with the bevel gear one, the gear shifting drum one and the gear shifting drum two are provided with gear shifting grooves matched with the shift fork.
[0008] The utility model has the advantages that compared with prior art, the utility model reduces misoperation of gear shifting, shortens gear shifting time, reduces cost and greatly improves gear shifting efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 is a structural schematic view 1 of a gear shift mechanism of the utility model.
[0010] Figure 2 is a structural schematic view 2 of a gear shift mechanism of the utility model.
[0011] As shown in the figure:
[0012] 1, pawl, 2, roller, 3, shift drum one, 4, shift drum two, 5, connecting column, 6, connecting groove, 7, driving bevel gear, 8, driven bevel gear, 9, bevel gear one, 10, bevel gear two, 11, shift groove. DETAILED DESCRIPTION
[0013] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely below in combination with the drawings in the utility model embodiment. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the utility model embodiments described and shown in the drawings here can be arranged and designed in various different configurations.
[0014] Embodiment 1, in combination with Figures 1-2, a gear shift mechanism of a gearbox, comprising pawl 1, roller 2, shift drum one 3, shift drum two 4, and shift fork;
[0015] The roller 2 is provided with a connecting column 5 on one side, the pawl 1 is provided with a connecting groove 6 matched with the connecting column 5, the pawl 1 is connected with the roller 2 by matching the connecting groove 6 with the connecting column 5, the roller 2 is provided with a driving bevel gear 7 on the other side, the shift drum one 3 is fixedly connected with a driven bevel gear 8 at one end, the driven bevel gear 8 meshes with the driving bevel gear 7, the shift drum one 3 is fixedly connected with a bevel gear one 9, the shift drum two 4 is fixedly connected with a bevel gear two 10 meshing with the bevel gear one 9, the shift drum one 3 and the shift drum two 4 are provided with a shift groove 11 matched with the shift fork.
[0016] In the specific implementation of the utility model, the pawl 1 is connected with the gear shift lever, the driver pulls the pawl 1 by pulling the gear shift lever forward or backward to make the roller 2 rotate, the rotation of the roller 2 drives the shift drum one 3 and the shift drum two 4 to change position, drives the shift fork to move, and realizes gear shifting.
[0017] It should be noted that the present scheme only changes the shift logic of the H-type gearbox, and does not change the inside of the gearbox, so the transmission efficiency will not be increased like the sequential gearbox, and at the same time, since there are H-type gearbox modification spur gears on the market to improve transmission efficiency, therefore, it is not described here.
[0018] In particular, the shape and size of the present application and the specific form of the shift drum can be adjusted according to different vehicle models, but the internal structure and principle remain unchanged.
[0019] In the description of the embodiments of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the present application product in use, only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0020] In addition, if the terms "horizontal", "vertical", "overhanging" and the like do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0021] In the description of the embodiments of the present application, "a plurality of" represents at least 2. In the description of the embodiments of the present application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "set", "install", "connect", "connect" are broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between the two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0022] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.
Claims
1. A gearbox shift mechanism, characterized by: The pawl (1), the roller (2), the shift drum (3), the shift drum (4) and the shift fork are included. The roller (2) is provided with a connecting column (5) on one side, the pawl (1) is provided with a connecting groove (6) matched with the connecting column (5), the pawl (1) is connected with the roller (2) through the connecting groove (6) matched with the connecting column (5), the roller (2) is provided with a driving bevel gear (7) on the other side, the shift drum (3) is fixedly connected with a driven bevel gear (8) on one end, the driven bevel gear (8) is engaged with the driving bevel gear (7), the shift drum (3) is fixedly connected with a bevel gear (9) on one end, the shift drum (4) is fixedly connected with a bevel gear (10) engaged with the bevel gear (9), the shift drum (3) and the shift drum (4) are provided with shift grooves (11) matched with the shift fork.