Gear selection and shift guide block for a gearbox

Abstract

This utility model provides a gear selector guide block for a transmission, including a gear selector guide block fixed on the main shift fork shaft. The gear selector guide block includes a mounting body, on which a gear selector guide plate is provided near one end. An arc-shaped groove is provided on the top end face of the gear selector guide plate along the axial direction of the main shift fork shaft. A neutral groove is provided at the center of the arc-shaped groove along the circumference of the main shift fork shaft. Gear selector grooves are respectively provided on both sides of the neutral groove on the top end face of the gear selector guide plate. A gear selector guide platform is provided in the middle of the gear selector groove, dividing the gear selector groove into multiple gear slots. Transition planes are provided between the gear slots and the neutral groove, and between the gear selector guide platform and the neutral groove. This gear selector guide block divides the gear selector groove into multiple gear slots through the gear selector guide platform, and the transition planes between the gear slots and the neutral groove, and between the gear selector guide platform and the neutral groove, clearly distinguish the gear positions, avoid the situation of returning to neutral after shifting, and ensure the reliability of gear selection and shifting.

Description

Technical Field

[0001] This utility model belongs to the technical field of gearbox shifting auxiliary parts, specifically to a gearbox shifting guide block. Background Technology

[0002] As one of the core components of a vehicle, the operation of the gear selector mechanism affects the vehicle's practical performance, and the operational feedback of the gear selector mechanism affects the driver's operating experience. This is especially true in manual transmission vehicles, where the feedback of the gear selector mechanism is particularly important for the driver's gear selection and shifting operations and experience.

[0003] Currently, in manual transmission vehicles, the gearboxes must be able to automatically return to neutral after downshifting. Therefore, the shift lever and gear selector are integrated into the same part, with only one ramp at the shift position. The shift spring moves to the ramp position and automatically returns to neutral. However, during use, the gearbox also returns to neutral after shifting, resulting in a large overlap between the shift positions in different directions. This makes it difficult for the driver to distinguish the current gear and the gear to be shifted into when shifting again, leading to a poor driving experience and increasing the risk of gearbox damage due to incorrect shifting during driving. Utility Model Content

[0004] To address the problem that existing gear selector blocks and shift levers are integrated into a single part with only a ramp at the shift position, causing the gear to return to neutral after shifting, making it difficult for the driver to distinguish between the current gear and the gear to be shifted into when shifting again, resulting in a poor driving experience and damage to the transmission due to incorrect shifting, this utility model provides a gear selector guide block for a transmission.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a gear selector guide block for a gearbox, including a gear selector guide block fixed on a main shift fork shaft. The gear selector guide block includes a mounting body, and a gear selector guide plate is provided on one end of the mounting body. An arc-shaped groove is provided on the top end face of the gear selector guide plate along the axial direction of the main shift fork shaft. A neutral groove is provided at the center of the arc-shaped groove along the circumference of the main shift fork shaft. Gear selector grooves are respectively provided on both sides of the neutral groove on the top end face of the gear selector guide plate. A gear selector guide platform is provided in the middle of the gear selector groove, dividing the gear selector groove into multiple gear slots. A transition plane is provided between the gear slot and the neutral slot, and between the gear shift guide and the neutral slot; Wherein, the straight-line distance between the bottom end face of the gear slot and the center position of the mounting body is less than the straight-line distance between the bottom end face of the neutral slot and the center position of the mounting body; a spring seat of the gearbox is inserted into the neutral slot or one of the gear slots.

[0006] Preferably, each gear selection slot is provided with a gear shift guide plate, which divides the gear selection slot into two gear slots, and the two gear slots are arranged along the axial direction of the main shift fork shaft.

[0007] Preferably, the straight-line distance between the end of the gear selector plate near the neutral slot and the center of the mounting body is less than the straight-line distance between the bottom end face of the neutral slot and the center of the mounting body, and the straight-line distance between the end of the gear selector plate away from the neutral slot and the center of the mounting body is greater than the straight-line distance between the end of the gear selector plate near the neutral slot and the center of the mounting body.

[0008] Preferably, the width of the shift guide plate is equal to the width of the neutral slot.

[0009] Preferably, the transition plane includes a first smooth surface and a second smooth surface; The first smooth surface is disposed at the connection position between the shift guide plate and the gear slot, and the second smooth surface is disposed at the connection position between the gear slot and the neutral slot.

[0010] Preferably, the mounting body is cylindrical.

[0011] Preferably, the shift guide plate is an L-shaped plate.

[0012] Preferably, the mounting body is provided with a pin hole, and a fixing pin passes through the pin hole.

[0013] Preferably, a first reinforcing rib is provided between the shift guide plate and the shift operation part provided on the mounting body.

[0014] Preferably, the shift guide plate is provided with a second reinforcing rib.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: This utility model proposes a gear shift guide block for a transmission. This guide block divides the gear selection slot into multiple gear slots via a gear shift guide platform. Combined with the transition planes between the gear slots and the neutral slot, and between the gear shift guide platform and the neutral slot, the positions of each gear can be clearly distinguished. Furthermore, the straight-line distance from the bottom end face of the gear slot to the center of the mounting body is less than the straight-line distance from the bottom end face of the neutral slot to the center of the mounting body. This effectively prevents the gear from returning to neutral after shifting, ensuring the stability and reliability of gear shifting, making the shifting operation smoother, optimizing the internal space utilization of the transmission and the convenience of parts assembly, allowing the driver to accurately identify the current gear and the target gear, improving the driving experience, reducing the risk of transmission damage due to shifting errors, and extending the service life of components.

[0016] Furthermore, a gear selection guide plate is provided in one gear selection slot of this gear selection guide block. The gear selection guide plate divides the neutral slot into four positions, thereby clearly distinguishing the gear selection position. This allows the driver to clearly identify the current gear of the transmission by the position of the gear lever connected to the main shift fork shaft after shifting gears, avoiding the situation where it is difficult to distinguish the current gear and the gear to be selected when shifting gears again.

[0017] Furthermore, the width of the shift guide plate in this shift guide block is equal to the width of the neutral slot, so that during the shifting process, the spring seat can smoothly switch between the shift guide plate and the neutral slot, improving shifting smoothness and enhancing the driver's driving experience.

[0018] Furthermore, the transition plane in this gear selector guide block includes a first smooth surface and a second smooth surface. The first smooth surface guides the spring seat to slide smoothly between the gear selector guide plate and the gear position groove, avoiding gear shifting jams caused by abrupt structural changes at the connection point. The second smooth surface enables the spring seat to achieve a smooth transition when switching between gear and neutral, preventing it from returning to neutral after gear shifting due to an unreasonable transition structure. It also allows the driver to more clearly perceive the position boundary between the current gear and neutral through the smooth tactile difference, enhancing gear differentiation. Combined with the gear selector guide plate and other structures, this further improves the accuracy and smoothness of gear shifting operations, reduces gear shifting errors, reduces frictional wear between components, and extends the service life of the gear selector guide block.

[0019] Furthermore, this shift guide block is equipped with a first reinforcing rib and a second reinforcing rib. The first reinforcing rib increases the connection strength between the mounting body and the shift guide plate, enhancing the overall rigidity of the shift guide block and providing reliable structural support for shifting. The second reinforcing rib enhances the structural strength and rigidity of the shift guide plate, preventing deformation or damage due to concentrated stress. This ensures the positional accuracy and stability of structures such as the arc groove, neutral groove, and gear groove on the shift guide plate, ensuring smooth and reliable spring seat engagement and shifting operation. This indirectly improves the durability of the entire shift guide block and the operational safety of the transmission. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a gearbox shift guide block according to the present invention. Figure 2 This is a schematic diagram of the gear shift guide block of a gearbox proposed in this utility model from one perspective. Figure 3 This is a structural schematic diagram of the gear shift guide block of the gearbox proposed in this utility model from another perspective; Figure 4 This is a schematic diagram of the installation of a gearbox shift guide block according to the present invention; In the attached diagram: 1. Main shift fork shaft; 2. Fixing pin; 3. Shift guide block; 30. Shift guide plate; 31. Shift guide platform; 32. Gear slot; 33. First reinforcing rib; 34. Pin hole; 35. Second reinforcing rib; 36. Neutral slot; 4. Spring seat; 5. Spring; 6. Plug. Detailed Implementation

[0021] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] This utility model proposes a shift guide block for a gearbox, such as... Figures 1-4As shown, the system includes a shift guide block 3 fixed to the main shift fork shaft 1. The shift guide block 3 includes a mounting body, on which a shift guide plate 30 is provided near one end. An arc-shaped groove is provided on the top end face of the shift guide plate 30 along the axial direction of the main shift fork shaft 1. A neutral groove 36 is provided at the center of the arc-shaped groove along the circumference of the main shift fork shaft 1. Shift grooves are provided on both sides of the neutral groove 36 on the top end face of the shift guide plate 30. A shift guide platform 31 is provided in the middle of the shift groove, dividing the shift groove into multiple gear slots 32. There are also gaps between the gear slots 32 and the neutral groove 36, and between the shift guide platform 31 and the neutral groove 36. A transition plane is provided; wherein, the straight distance between the bottom end face of the gear slot 32 and the center position of the mounting body is less than the straight distance between the bottom end face of the neutral slot 36 and the center position of the mounting body; the neutral slot 36 or one of the gear slots 32 is fitted with a spring seat 4 in the gearbox, a spring 5 is installed on the top end face of the spring seat 4, and a screw plug 6 is connected to the upper end of the spring 5. The spring seat 4, the spring 5 and the screw plug 6 are all fixed in the fixing holes provided on the gearbox. Under the action of the spring 5, the spring seat 4 will maintain contact with one of the end faces of the upper end face of the gear selector guide 31, the bottom end face of the neutral slot 36 or the bottom end face of the gear slot (32) in different gear positions. This gear shift guide block divides the gear selection slot into multiple gear slots using a gear shift guide platform. Combined with the transition planes between the gear slots and the neutral slot, and between the gear shift guide platform and the neutral slot, the positions of each gear can be clearly distinguished. Furthermore, the straight-line distance from the bottom end face of the gear slot to the center of the mounting body is less than the straight-line distance from the bottom end face of the neutral slot to the center of the mounting body. This effectively prevents the gear from returning to neutral after shifting, ensuring the stability and reliability of gear shifting, making the shifting operation smoother, optimizing the internal space utilization of the transmission and the convenience of parts assembly, allowing the driver to accurately identify the current and target gears, improving the driving experience, reducing the risk of transmission damage due to incorrect shifting, and extending the service life of components. In this embodiment, the main body of the installation is cylindrical; the shift guide plate 30 is an L-shaped plate, and the bottom of the spring seat 4 is a steel ball structure.

[0028] In this embodiment, as Figures 1-3 As shown, each gear selection slot is equipped with a gear selection guide 31, which divides the gear selection slot into two gear slots 32. The two gear slots 32 are arranged along the axial direction of the main shift fork shaft 1.

[0029] In this embodiment, as Figures 1-3As shown, the straight-line distance between the end of the gear selector guide plate 30 near the neutral slot 36 and the center of the mounting body is less than the straight-line distance between the bottom end face of the neutral slot 36 and the center of the mounting body. This results in a height difference at the connection point between the gear selector guide plate 31 and the neutral slot 36, causing significant resistance to the spring seat 4 as it automatically returns from the gear position to neutral. This prevents the spring seat 4 from rotating back to the neutral position after shifting to the appropriate gear. The straight-line distance between the end of the gear selector guide plate 30 away from the neutral slot 36 and the center of the mounting body is greater than the straight-line distance between the end of the gear selector guide plate 30 near the neutral slot 36 and the center of the mounting body.

[0030] In this embodiment, as Figure 1 and Figure 3 As shown, the transition plane includes a first smooth surface and a second smooth surface. The first smooth surface is located at the connection between the gear selector guide plate 30 and the gear position groove 32. The first smooth surface guides the spring seat 4 to smoothly transition from the gear selector guide plate 30 to the gear position groove 32, avoiding shifting jams caused by abrupt structures at the connection position and improving the smoothness of shifting. The second smooth surface is located at the connection between the gear position groove 32 and the neutral groove 36. The second smooth surface provides significant resistance between the spring seat 4 and the neutral position, preventing it from rotating back to the neutral position when in gear. This allows the driver to more clearly perceive the position boundary between the current gear and the neutral position, enhancing gear differentiation. Together with the gear selector guide plate 31, this further improves the accuracy and smoothness of shifting operations, reduces shifting errors, and reduces frictional wear between components, extending the service life of the gear selector guide block 3.

[0031] In this embodiment, as Figures 1-3 As shown, the width of the gear selector guide plate 30 is equal to the width of the neutral slot 36, which allows the spring seat 4 to slide smoothly during gear shifting, increasing the smoothness of gear shifting and improving the driver's driving experience.

[0032] In this embodiment, as Figure 4 As shown, the mounting body is provided with a pin hole 34, and a fixing pin 2 is inserted into the pin hole. Through the cooperation of the fixing pin 2 and the pin hole 34, the mounting body can be stably and conveniently fixed on the main shift fork shaft 1.

[0033] In this embodiment, as Figures 1-3As shown, a first reinforcing rib 33 is provided between the gear selection guide plate 30 and the gear shifting operation part provided on the mounting body. The first reinforcing rib 33 increases the connection strength between the gear selection guide plate 30 and the mounting body, and avoids relative deformation of the gear selection guide plate 30 on the mounting body due to long-term stress. The gear shifting operation part is a conventional structure, which is a conventional setting in existing gear shifting guide blocks. That is, a protrusion is provided on the mounting body along the axial direction of the main gear shifting fork shaft 1 at a position away from the gear selection guide plate 30. The outer wall of the protrusion is provided with a left rotation groove and a right rotation groove. When selecting gears, the left rotation groove and the right rotation groove ensure that they do not obstruct gear selection.

[0034] In this embodiment, as Figure 2 As shown, a second reinforcing rib 35 is provided inside the gear selection guide plate 30. One end face of the second reinforcing rib 35 is fixedly connected to one end face of the bottom of the L-shaped plate, and the other end face of the second reinforcing rib 35 is fixedly connected to the other end face of the bottom of the L-shaped plate. The second reinforcing rib 35 can effectively enhance the structural strength and rigidity of the gear selection guide plate 30, disperse the force borne by the L-shaped plate during gear shifting, and prevent it from deforming or being damaged due to force concentration. This ensures the positional accuracy and stability of the neutral groove 36 and gear groove 32 structure on the gear selection guide plate 30, ensures the smooth and reliable locking of the spring seat 4 and gear shifting operation, and indirectly improves the durability of the entire gear shift guide block 3 and the operating safety of the gearbox.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications made to the technical solutions based on the technical concept proposed by this utility model shall fall within the scope of protection of the claims of this utility model.

Claims

1. A gear shift guide block for a transmission, characterized in that, The system includes a shift guide block (3) fixed on the main shift fork shaft (1). The shift guide block (3) includes a mounting body. A shift guide plate (30) is provided on the mounting body near one end. An arc-shaped groove is provided on the top end face of the shift guide plate (30) along the axial direction of the main shift fork shaft (1). A neutral groove (36) is provided at the center of the arc-shaped groove along the circumference of the main shift fork shaft (1). Shift grooves are provided on both sides of the neutral groove (36) on the top end face of the shift guide plate (30). A shift guide platform (31) is provided in the middle of the shift groove, dividing the shift groove into multiple shift slots (32). A transition plane is provided between the gear slot (32) and the neutral slot (36), and between the gear selection guide (31) and the neutral slot (36); Wherein, the straight-line distance between the bottom end face of the gear slot (32) and the center position of the mounting body is less than the straight-line distance between the bottom end face of the neutral slot (36) and the center position of the mounting body; the spring seat (4) of the gearbox is inserted in the neutral slot (36) or one of the gear slots (32).

2. The gear shift guide block of a transmission according to claim 1, characterized in that, Each gear selection slot is provided with a gear selection guide (31) to divide the gear selection slot into two gear slots (32), and the two gear slots (32) are arranged along the axial direction of the main shift fork shaft (1).

3. The gear shift guide block of a transmission according to claim 2, characterized in that, The straight-line distance between the end of the gear selector (30) near the neutral slot (36) and the center of the mounting body is less than the straight-line distance between the bottom end face of the neutral slot (36) and the center of the mounting body. The straight-line distance between the end of the gear selector (30) away from the neutral slot (36) and the center of the mounting body is greater than the straight-line distance between the end of the gear selector (30) near the neutral slot (36) and the center of the mounting body.

4. The gear shift guide block of a transmission according to claim 2, characterized in that, The width of the gear selection guide plate (30) is equal to the width of the neutral slot (36).

5. The gear shift guide block of a transmission according to claim 1, characterized in that, The transition plane includes a first smooth surface and a second smooth surface; The first smooth surface is disposed at the connection position between the gear selection guide plate (30) and the gear slot (32), and the second smooth surface is disposed at the connection position between the gear slot (32) and the neutral slot (36).

6. The gear shift guide block of a transmission according to claim 1, characterized in that, The mounting body is cylindrical.

7. The gear shift guide block of a transmission according to claim 1, characterized in that, The selection guide plate (30) is an L-shaped plate.

8. The gear shift guide block of a transmission according to claim 1, characterized in that, The mounting body is provided with a pin hole (34), and a fixing pin (2) is inserted into the pin hole.

9. The gear shift guide block of a transmission according to claim 1, characterized in that, A first reinforcing rib (33) is provided between the gear selection guide plate (30) and the gear shifting operation part provided on the mounting body.

10. A gear shift guide block for a transmission according to claim 1, characterized in that, The selection guide plate (30) is provided with a second reinforcing rib (35).

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