Slide block limiting structure of one-way synchronizer and one-way synchronizer

Abstract

The utility model relates to the technical field of vehicle transmissions, and discloses a sliding block limiting structure of a one-way synchronizer and the one-way synchronizer, the sliding block limiting structure comprises an integrated sliding block assembly, the integrated sliding block assembly comprises a spring, a steel barrel and a steel ball, the spring is contained in the steel barrel, the spring is arranged in the radial direction of a synchronizer tooth holder, and the steel ball is arranged in the steel barrel; one end of the spring abuts against the outer surface of the inner ring of the synchronizer tooth holder, and the other end of the spring abuts against the steel ball. The arc groove is formed in the synchronizer tooth holder in the radial direction, and the arc groove faces the blind hole of the synchronizing ring; the spherical crown groove is formed in the inner wall of the synchronizer gear sleeve corresponding to the arc groove; when the synchronizer gear sleeve slides towards the synchronizing ring, the synchronizer gear sleeve pushes the synchronizing ring to slide through the integrated sliding block assembly; when the synchronizer gear sleeve slides in the direction opposite to the synchronizing ring, the arc groove limits sliding of the integrated sliding block assembly. According to the sliding block limiting structure and the one-way synchronizer, the technical problems that pushing design is not rigorous, connection relations are too many, and the structure is complex are solved.

Description

Technical Field

[0001] This invention relates to the field of vehicle transmission technology, specifically to a slider limiting structure for a one-way synchronizer and a one-way synchronizer. Background Technology

[0002] A synchronizer in a vehicle transmission is a specially designed mechanical device intended to solve the synchronization problem during gear shifting, ensuring a smooth and efficient shifting process. The functions of a synchronizer are: ① To achieve gear synchronization: By acting as a synchronizer, the meshing gears reach the same speed, thus achieving a smooth meshing process. ② To simplify gear shifting: The synchronizer automatically adjusts the gear speed, allowing the driver to easily complete gear shifts. ③ To improve the driving experience: Reduces the impact and noise during gear shifts, improving driving comfort and stability. ④ To extend service life: By reducing wear between gears, it extends the service life of the transmission and gears.

[0003] Synchronizers are mainly divided into bidirectional synchronizers and unidirectional synchronizers. A bidirectional synchronizer is a mechanical device that can synchronize gears in two directions, suitable for applications requiring synchronization in both directions, and ideal for vehicles with frequent gear shifts and high performance requirements, such as racing cars and sports cars. A unidirectional synchronizer, on the other hand, is a mechanical device that can synchronize gears only in a specific direction. Unidirectional synchronizers only require one side of the gearbox and are mainly used in the gearboxes of new energy pure electric vehicles for disengagement. Since electric vehicles only need to use the unidirectional synchronizer when switching from four-wheel drive to two-wheel drive, and it is necessary to prevent the synchronizer from moving to the opposite side, a unidirectional limit switch is required.

[0004] In related technologies, patent CN217271529U discloses a single-sided synchronizer. The synchronization structure of the synchronizer mainly uses the synchronizer sleeve to push the synchronizer push block to move towards the gear to be synchronized—the reverse gear—when shifting gears. The synchronizer push block pushes the synchronizer ring to contact the conical surface of the synchronizer cone to start synchronization. Finally, the synchronizer sleeve and the synchronizer cone spline are connected and rotate synchronously. The power transmission route is that the reverse gear drives the synchronizer sleeve to rotate, the synchronizer sleeve drives the synchronizer tooth seat to rotate, and the synchronizer tooth seat drives the output shaft to rotate, thereby realizing power output. When the synchronizer sleeve pushes the synchronizer push block to move towards the first gear, the synchronizer gear seat is designed with a limit stop to prevent the synchronizer sleeve from continuing to move towards the first gear. At the same time, the synchronizer gear seat is designed with a slider limit retainer ring that is in close contact with the synchronizer push block to prevent the synchronizer push block from moving towards the first gear due to the force of the synchronizer sleeve. This also avoids the synchronizer push block falling off due to problems such as vehicle gearbox vibration if there is no limit stop on one side. This achieves the dual functions of gear engagement limit and single-sided synchronization structure protection.

[0005] However, the above-mentioned single-sided synchronizer has the following drawbacks:

[0006] ① The article describes an ideal state in which the synchronizer sleeve pushes the synchronizer push block, and the synchronizer push block pushes the synchronizer ring. However, the article does not provide a rigorous structural design for how the synchronizer sleeve pushes the synchronizer push block, and the pushing design is not rigorous.

[0007] ② The synchronizer gear seat needs to have a full circle of grooves for installing the slider limit ring; the slider limit ring, spring and synchronizer push block are three structures that cooperate with each other, resulting in too many connections, complicated structure and more prone to failure. Summary of the Invention

[0008] This application provides a slider limiting structure and a unidirectional synchronizer, which solves the technical problems of imprecise drive design, too many connection relationships and complex structure.

[0009] In a first aspect, this application discloses a slider limiting structure for a one-way synchronizer. The one-way synchronizer includes a synchronizer tooth seat, a synchronizer tooth sleeve, and a synchronizer ring. The synchronizer ring and the synchronizer tooth seat are arranged coaxially and side by side. The synchronizer tooth sleeve meshes with the synchronizer tooth seat and the synchronizer ring through a spline.

[0010] The slider limiting structure is characterized by comprising:

[0011] An integrated slider assembly includes a spring, a steel barrel, and a steel ball. The spring is housed in the steel barrel and is arranged radially along the synchronizer gear seat. One end of the spring abuts against the outer surface of the inner ring of the synchronizer gear seat, and the other end abuts against the steel ball.

[0012] An arc-shaped groove is radially disposed on the synchronizer gear seat, and the arc-shaped groove is a blind hole facing the synchronizer ring;

[0013] A spherical crown groove, corresponding to an arc-shaped groove, is provided on the inner wall of the synchronizer sleeve;

[0014] The steel barrel is located within the arc groove, and the steel ball is held against the spherical crown groove by the spring. When the synchronizer sleeve slides toward the synchronizer ring, the integrated slider assembly is pushed by the synchronizer sleeve and pushes the synchronizer ring. When the synchronizer sleeve slides in the opposite direction toward the synchronizer ring, the arc groove is used to restrict the sliding of the integrated slider assembly.

[0015] Based on the above technical solution, the number of the integrated slider assembly, the arc groove and the spherical crown groove are the same, and there are three of each; the three integrated slider assemblies are arranged at equal angles along the circumferential direction of the synchronizer tooth seat.

[0016] Based on the above technical solution, the integrated slider assembly also includes a spring-loaded component, which is fixedly disposed at the top of the steel barrel, and the steel ball is located in the center of the spring-loaded component; the spring-loaded component is used to be pushed by the synchronizer sleeve and push the synchronization ring.

[0017] Based on the above technical solution, the width of the spring-loaded component is greater than the diameter of the steel barrel, and when the synchronizing ring is fully matched with the external engagement teeth, the end face of the engagement teeth is tangent to the circumferential surface of the steel barrel.

[0018] Based on the above technical solution, the slider limiting structure also includes a boss, which is disposed on the synchronous ring at the position corresponding to the integrated slider assembly. In the initial state, the boss is in close contact with the side of the spring-loaded component.

[0019] Based on the above technical solution, when the synchronizer sleeve slides during gear shifting, the spring-loaded component of the integrated slider assembly is pushed by the synchronizer sleeve and pushes the boss of the synchronizer ring.

[0020] Based on the above technical solution, the diameter of the portion of the steel barrel facing the axis of the synchronizer gear seat is smaller than the diameter of the portion of the steel barrel facing the outer ring of the synchronizer gear seat.

[0021] Secondly, this application discloses a one-way synchronizer, including the slider limiting structure as described above. The synchronizer tooth sleeve of the one-way synchronizer is engaged with the output shaft of the transmission. The synchronizer tooth sleeve of the one-way synchronizer is provided with an annular groove, and the annular groove is connected to the transmission shift fork lever.

[0022] Based on the above technical solution, the number of the integrated slider assembly, the arc groove and the spherical crown groove are the same, and there are three of each; the three integrated slider assemblies are arranged at equal angles along the circumferential direction of the synchronizer tooth seat.

[0023] Based on the above technical solution, the integrated slider assembly also includes a spring-loaded component, which is fixedly disposed at the top of the steel barrel, and the steel ball is located in the center of the spring-loaded component; the spring-loaded component is used to be pushed by the synchronizer sleeve and push the synchronization ring.

[0024] The beneficial effects of the technical solutions provided in this application include at least the following:

[0025] The slider limiting structure of this application for a unidirectional synchronizer is simple in structure. It only requires an arc-shaped groove to be made in the synchronizer gear seat, and a spherical crown groove to be set at the corresponding position on the inner wall of the synchronizer gear sleeve. Then, the integrated slider assembly is set in the arc-shaped groove and the spherical crown groove, so that the steel barrel is located in the arc-shaped groove, and the steel ball is held against the spherical crown groove under the action of the spring. The whole structure is highly concise, greatly reducing the connection relationship. The structural design is ingenious. The synchronizer gear seat not only undertakes the transmission function, but also ensures reliable limiting on one side of the integrated slider assembly. The integrated slider assembly adopts an integral structure, making the structure more compact. When the synchronizer gear sleeve slides in the opposite direction to the synchronizer ring, the arc-shaped groove... The groove restricts the sliding of the integrated slider assembly, preventing it from dislodging in a free state or under reverse force, thus ensuring the safety and reliability of the unidirectional synchronization function. Furthermore, when the synchronizer sleeve slides towards the synchronizer ring, it pushes the synchronizer ring to slide via the integrated slider assembly, at which point the steel ball is within the spherical crown groove. As the synchronizer sleeve continues to advance, it pushes the locking surface of the synchronizer ring to engage with the engagement teeth, achieving locking synchronization, at which point the steel ball is within the spherical crown groove. Upon further advancement, the synchronizer sleeve engages with the engagement teeth, at which point the steel ball disengages from the spherical crown groove, and the inner wall of the synchronizer sleeve further compresses the spherical crown groove through the steel ball, achieving a rigorous pushing design. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A cross-sectional view of a unidirectional synchronizer with a slider limiting structure provided in an embodiment of this application;

[0028] Figure 2 An exploded view of a unidirectional synchronizer with a slider limiting structure provided in an embodiment of this application;

[0029] Figure 3 A cross-sectional view of the synchronizer gear holder provided in an embodiment of this application;

[0030] Figure 4 A cross-sectional view of the synchronizer sleeve provided in an embodiment of this application;

[0031] Figure 5 This is a schematic diagram showing the synchronizer sleeve of the unidirectional synchronizer with a slider limiting structure provided in the embodiments of this application sliding to the limit position and engaging with the engagement teeth;

[0032] Figure 6 A cross-sectional view of the integrated slider assembly provided in this application embodiment located within the synchronizer gear seat;

[0033] In the diagram: 1. Synchronizer tooth seat; 2. Synchronizer tooth sleeve; 3. Integrated slider assembly; 4. Circular groove; 5. Synchronizer ring; 6. Engaging tooth; 11. Circular groove; 21. Ball crown groove; 22. Annular groove; 31. Spring; 32. Steel barrel; 33. Steel ball; 34. Spring compression component; 51. Boss. Detailed Implementation

[0034] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0035] The slider limiting structure and unidirectional synchronizer of this application solve the technical problems of imprecise push design, too many connection relationships and complex structure. By using an integrated slider assembly and corresponding arc grooves, the connection relationships are greatly reduced and the structure is greatly simplified. At the same time, the spring 31 and steel ball 33 of the integrated slider assembly cooperate to make the push design rigorous and reliable.

[0036] like Figures 1-6 As shown, this application discloses an embodiment of a slider limiting structure for a one-way synchronizer. The one-way synchronizer includes a synchronizer tooth seat 1, a synchronizer tooth sleeve 2, and a synchronizer ring 5. The synchronizer ring 5 and the synchronizer tooth seat 1 are arranged coaxially and side by side. The synchronizer tooth sleeve 2 meshes with the synchronizer tooth seat 1 and the synchronizer ring 5 respectively through splines, and is used to transmit torque and realize axial synchronous movement.

[0037] The slider limiting structure includes an integrated slider assembly 3, an arc groove 4, and a spherical crown groove 21. The integrated slider assembly 3 is assembled separately and pre-assembled into a whole before being installed as a whole. The integrated slider assembly 3 includes a spring 31, a steel barrel 32, and a steel ball 33. The spring 31 is housed in the steel barrel 32 and is arranged radially along the synchronizer gear seat 1. One end of the spring 31 abuts against the outer surface of the inner ring of the synchronizer gear seat 1, and the other end abuts against the steel ball 33.

[0038] An arc-shaped groove 4 is radially disposed on the synchronizer gear seat 1, and the arc-shaped groove 4 is a blind hole facing the synchronizer ring 5. Specifically, the axis of the arc-shaped groove 4 is the radial direction of the synchronizer gear seat 1. The arc-shaped groove 4 is either a blind hole facing the synchronizer ring 5 or a blind hole radially outward along the synchronizer gear seat 1. The peripheral structure of the arc-shaped groove 4 has a certain structural strength to prevent the integrated slider assembly 3 from moving in the opposite direction.

[0039] The spherical crown groove 21 is provided on the inner wall of the synchronizer sleeve 2, corresponding to the arc groove 4. Specifically, the spherical crown groove 21 is provided at the spline of the synchronizer sleeve 2.

[0040] In its natural state, the steel barrel 32 is located within the arc groove 4, and the steel ball 33 is held against the spherical crown groove 21 by the action of the spring 31. When the synchronizer sleeve 2 slides toward the synchronizer ring 5, the synchronizer sleeve 2 pushes the synchronizer ring 5 to slide through the integrated slider assembly 3; when the synchronizer sleeve 2 slides toward the synchronizer ring 5 in the opposite direction, the arc groove 4 restricts the sliding of the integrated slider assembly 3.

[0041] The slider limiting structure of the unidirectional synchronizer in this application is simple in structure. It only requires opening an arc groove 4 in the synchronizer tooth seat 1 and setting a spherical crown groove 21 at the corresponding position on the inner wall of the synchronizer tooth sleeve 2. Then, the integrated slider assembly 3 is set in the arc groove 4 and the spherical crown groove 21, so that the steel barrel 32 is located in the arc groove 4 and the steel ball 33 is held against the spherical crown groove 21 under the action of the spring 31. The whole structure is highly concise, greatly reducing the connection relationship. The structure is ingeniously designed. The synchronizer tooth seat 1 not only undertakes the transmission function, but also takes into account the reliable limiting of one side of the integrated slider assembly 3. The integrated slider assembly 3 adopts an integral structure, making the structure more compact.

[0042] When the synchronizer sleeve 2 slides in the opposite direction to the synchronizer ring 5, the arc groove 4 restricts the sliding of the integrated slider assembly 3, preventing the integrated slider assembly 3 from coming off in a free state or under reverse force, so that the one-way synchronization function is safe and reliable.

[0043] Based on this, when the synchronizer sleeve 2 slides toward the synchronizer ring 5, the synchronizer sleeve 2 pushes the synchronizer ring 5 to slide through the integrated slider assembly 3. At this time, the steel ball 33 is in the spherical crown groove 21. When the synchronizer sleeve 2 continues to advance, it will push the locking surface of the synchronizer ring 5 to cooperate with the engagement tooth 6 to achieve locking synchronization. At this time, the steel ball 33 is in the spherical crown groove 21. After further advancing, the synchronizer sleeve 2 will engage with the engagement tooth 6. At this time, the steel ball 33 will disengage from the spherical crown groove 21, and the inner wall of the synchronizer sleeve 2 will further compress the spherical crown groove 21 through the steel ball 33, thus achieving a rigorous pushing design.

[0044] The slider limiting structure of the unidirectional synchronizer in this application is compact, low in cost, and reliable in strength. It can be applied to traditional MT, DCT single-sided application environments, and new energy disengagement mechanisms, etc.

[0045] Furthermore, in one embodiment, the number of integrated slider assemblies 3, arc grooves 4, and spherical crown grooves 21 are the same, and each has three; the three integrated slider assemblies 3 are arranged at equal angular intervals along the circumferential direction of the synchronizer tooth seat 1.

[0046] The three integrated slider assemblies make the entire structure more stable and the push design safer and more reliable.

[0047] like Figure 2 As shown, in one embodiment, the integrated slider assembly 3 further includes a spring-loaded component 34, which is fixedly disposed at the top of the steel barrel 32, and the steel ball 33 is located in the center of the spring-loaded component 34; the synchronizer sleeve 2 pushes the synchronization ring 5 through the spring-loaded component 34.

[0048] The spring 34, spring 31, steel barrel 32 and steel ball 33 form an integral assembly structure, which is structurally stable.

[0049] The spring-loaded component 34 makes the entire structure more stable and makes it easier to drive the synchronization ring 5.

[0050] like Figure 1 As shown, in one embodiment, the width of the spring-loaded member 34 is greater than the diameter of the steel barrel 32, which facilitates the pushing of the synchronization ring 5; when the synchronization ring 5 is fully matched with the external engagement teeth 6, the end face of the engagement teeth 6 is tangent to the circumferential surface of the steel barrel 32, and the whole structure is compact.

[0051] like Figure 2 As shown, in one embodiment, the slider limiting structure further includes a boss 51, which is disposed on the synchronous ring 5 at a position corresponding to the integrated slider assembly 3. The boss 51 can engage with the side of the arc groove 11, and in the initial state, the boss 51 is in close contact with the side of the spring member 34.

[0052] Furthermore, when the synchronizer sleeve 2 slides during gear shifting, the synchronizer sleeve 2 pushes the boss 51 of the synchronizer ring 5 through the spring-loaded part 34 of the integrated slider assembly 3.

[0053] Furthermore, the diameter of the portion of the steel barrel 32 facing the axis of the synchronizer gear seat 1 (i.e., the small diameter section) is smaller than the diameter of the portion of the steel barrel 32 facing the outer ring of the synchronizer gear seat 1 (i.e., the large diameter section).

[0054] The smaller diameter section accommodates the steel drum 32, and the larger diameter section accommodates the steel ball 33.

[0055] Secondly, this application also discloses a one-way synchronizer, including the above-mentioned slider limiting structure. The synchronizer tooth seat 1 of the one-way synchronizer is sleeved and meshes with the output shaft of the transmission. The synchronizer tooth sleeve 2 of the one-way synchronizer is provided with an annular groove 22, which is connected to the gearbox shift fork lever.

[0056] The unidirectional synchronizer of this application, when the synchronizer sleeve 2 slides toward the synchronizer ring 5, pushes the synchronizer ring 5 to slide through the integrated slider assembly 3, at which time the steel ball 33 is in the spherical crown groove 21; when the synchronizer sleeve 2 continues to advance, it will push the locking surface of the synchronizer ring 5 to engage with the engagement tooth 6 to achieve locking synchronization, at which time the steel ball 33 is in the spherical crown groove 21; after further advancement, the synchronizer sleeve 2 will engage with the engagement tooth 6, at which time the steel ball 33 will disengage from the spherical crown groove 21, and the inner wall of the synchronizer sleeve 2 will further compress the spherical crown groove 21 through the steel ball 33, realizing a rigorous pushing design; the integrated slider assembly 3 is used, the structure is simple and compact, and the connection relationship is greatly reduced, and the safety and reliability are strong.

[0057] Furthermore, in one embodiment, the number of integrated slider assemblies 3, arc grooves 4, and spherical crown grooves 21 are the same, and each has three; the three integrated slider assemblies 3 are arranged at equal angular intervals along the circumferential direction of the synchronizer gear seat 1. The three integrated slider assemblies 3 make the entire structure more stable and the drive design safer and more reliable.

[0058] Furthermore, in one embodiment, the integrated slider assembly 3 also includes a spring-loaded component 34, which is fixedly disposed at the top of the steel barrel 32, and the steel ball 33 is located in the center of the spring-loaded component 34; the synchronizer sleeve 2 pushes the synchronization ring 5 through the spring-loaded component 34.

[0059] The spring 34, spring 31, steel barrel 32 and steel ball 33 form an integral assembly structure, which is structurally stable.

[0060] The spring-loaded component 34 makes the entire structure more stable and makes it easier to drive the synchronization ring 5.

[0061] Furthermore, in one embodiment, the width of the spring-loaded member 34 is greater than the diameter of the steel barrel 32, which facilitates the pushing of the synchronization ring 5; when the synchronization ring 5 is fully matched with the external engagement teeth 6, the end face of the engagement teeth 6 is tangent to the circumferential surface of the steel barrel 32, and the whole structure is compact.

[0062] In the description of this application, it should be noted that the terms "upper," "lower," 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 application and simplifying the description, and do not 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 application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0063] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0064] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A slider limiting structure for a one-way synchronizer, the one-way synchronizer comprising a synchronizer tooth seat (1), a synchronizer tooth sleeve (2) and a synchronizer ring (5), the synchronizer ring (5) and the synchronizer tooth seat (1) being coaxially arranged side by side, the synchronizer tooth sleeve (2) being engaged with the synchronizer tooth seat (1) and the synchronizer ring (5) via a spline; Its features are, The slider limiting structure includes: An integrated slider assembly (3) includes a spring (31), a steel barrel (32) and a steel ball (33). The spring (31) is housed in the steel barrel (32) and is arranged radially along the synchronizer gear seat (1). One end of the spring (31) abuts against the outer surface of the inner ring of the synchronizer gear seat (1), and the other end abuts against the steel ball (33). A circular arc groove (4) is radially disposed on the synchronizer tooth seat (1), and the circular arc groove (4) is a blind hole facing the synchronizer ring (5); A spherical crown groove (21) is provided on the inner wall of the synchronizer sleeve (2) in accordance with the arc groove (4); The steel barrel (32) is located in the arc groove (4), and the steel ball (33) is held against the spherical crown groove (21) by the spring (31); when the synchronizer sleeve (2) slides toward the synchronizer ring (5), the integrated slider assembly (3) is pushed by the synchronizer sleeve (2) and pushes the synchronizer ring (5); when the synchronizer sleeve (2) slides in the opposite direction toward the synchronizer ring (5), the arc groove (4) is used to restrict the sliding of the integrated slider assembly (3).

2. The slider limiting structure of a unidirectional synchronizer as described in claim 1, characterized in that: The number of the integrated slider assembly (3), the arc groove (4) and the spherical crown groove (21) are the same, and each has three; the three integrated slider assemblies (3) are arranged at equal angles along the circumferential direction of the synchronizer tooth seat (1).

3. The slider limiting structure of a unidirectional synchronizer as described in claim 1, characterized in that: The integrated slider assembly (3) also includes a spring-loaded component (34), which is fixedly disposed at the top of the steel barrel (32), and the steel ball (33) is located in the center of the spring-loaded component (34); the spring-loaded component (34) is used to be pushed by the synchronizer sleeve (2) and push the synchronization ring (5).

4. The slider limiting structure of a unidirectional synchronizer as described in claim 3, characterized in that: The width of the spring-loaded component (34) is greater than the diameter of the steel barrel (32). When the synchronizing ring (5) is fully matched with the external engagement tooth (6), the end face of the engagement tooth (6) is tangent to the circumferential surface of the steel barrel (32).

5. The slider limiting structure of a unidirectional synchronizer as described in claim 3, characterized in that: The slider limiting structure also includes a boss (51), which is located on the synchronous ring (5) at a position corresponding to the integrated slider assembly (3). In the initial state, the boss (51) is close to the side of the spring-loaded member (34).

6. The slider limiting structure of a unidirectional synchronizer as described in claim 5, characterized in that: When the synchronizer sleeve (2) slides during gear shifting, the spring-loaded part (34) of the integrated slider assembly (3) is pushed by the synchronizer sleeve (2) and pushes the boss (51) of the synchronizer ring (5).

7. The slider limiting structure of a unidirectional synchronizer as described in claim 1, characterized in that: The diameter of the portion of the steel barrel (32) facing the axis of the synchronizer gear seat (1) is smaller than the diameter of the portion of the steel barrel (32) facing the outer ring of the synchronizer gear seat (1).

8. A unidirectional synchronizer, characterized in that: The system includes the slider limiting structure as described in claim 1, wherein the synchronizer tooth seat (1) of the one-way synchronizer is sleeved and engaged with the output shaft of the transmission, and the synchronizer tooth sleeve (2) of the one-way synchronizer is provided with an annular groove (22), which is connected to the gearbox shift fork lever.

9. A unidirectional synchronizer as described in claim 8, characterized in that: The number of the integrated slider assembly (3), the arc groove (4) and the spherical crown groove (21) are the same, and each has three; the three integrated slider assemblies (3) are arranged at equal angles along the circumferential direction of the synchronizer tooth seat (1).

10. A unidirectional synchronizer as described in claim 8, characterized in that: The integrated slider assembly (3) also includes a spring-loaded component (34), which is fixedly disposed at the top of the steel barrel (32), and the steel ball (33) is located in the center of the spring-loaded component (34); the spring-loaded component (34) is used to be pushed by the synchronizer sleeve (2) and push the synchronization ring (5).

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