Gear meshing self-adjusting device

Abstract

The present application provides a self-adjusting device for gear meshing, the technical solution of which is as follows: comprising: an engagement sleeve, the engagement sleeve is provided with a guide groove and an internal spline for contacting and cooperating with a target gear engagement ring; a guide tooth, the guide tooth is slidably arranged in the guide groove, an elastic member is arranged between the guide tooth and the guide groove, and the elastic member makes the guide tooth protrude from the internal spline of the engagement sleeve. The self-adjusting device for gear meshing provided by the present application has the advantage of shortening the gear shifting time.

Description

Technical Field

[0001] The present application relates to the technical field of variable speed transmission, and in particular to a gear meshing self-adjusting device. Background Art

[0002] With the continuous pursuit of automobile economy and power, the installation of automatic transmission systems on electric vehicles has attracted more and more attention from the automotive industry. Due to its advantages such as simple structure, reliable performance and low cost, the mechanical automatic transmission (AMT) is regarded as an important choice for electric vehicle transmission solutions. However, the synchronizer in the traditional AMT is equipped with multiple friction rings to eliminate the speed difference between the clutch and the target gear engagement ring. In traditional fuel vehicles, due to the low response characteristics of the engine, the huge speed difference between the clutch and the target gear engagement ring during the gear shifting process is mainly eliminated by the friction ring of the synchronizer, which makes the friction ring in the traditional AMT synchronizer easy to damage and has a short life; while in electric vehicles, active synchronization can be carried out with the help of the fast speed regulation ability of the drive motor, and the speed difference and even the angle difference between the clutch and the target gear engagement ring can be quickly eliminated. At this time, the existence of the friction ring is not conducive to shortening the gear shifting time. It is a technological trend to eliminate the friction ring of the shifting mechanism in the AMT.

[0003] In the transmission system of electric vehicles, the shift mechanism plays a very important role in the gear shifting process. Among them, the response of the coupling sleeve and the gear ring to be engaged during the meshing process directly affects the shifting quality during vehicle driving. During the axial movement of the coupling sleeve to the target gear engagement ring, the control system can control its speed and angle to enable the shift mechanism to complete the gear change in a shorter time. However, during the system motion control process, due to factors such as the control errors of the drive motor, shift motor and other components, there may be a certain deviation in the speed and rotation angle between the inner gear key of the coupling sleeve and the outer gear key of the target gear ring, which will affect the shifting time.

[0004] In view of the above problems, it is urgent to provide a new solution. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a gear meshing self-adjusting device, which has the advantage of shortening the gear shifting time.

[0006] In a first aspect, an embodiment of the present application provides a gear meshing self-adjusting device for realizing fast gear shifting, and the technical solution is as follows:

[0007] include:

[0008] An engagement sleeve, wherein a guide groove and an internal spline for contacting and cooperating with a target gear engagement ring are provided in the engagement sleeve;

[0009] A guide tooth is slidably arranged in the guide groove, an elastic member is arranged between the guide tooth and the guide groove, and the elastic member makes the guide tooth protrude from the inner spline of the coupling sleeve.

[0010] A guide groove and a guide tooth sliding in the guide groove are provided in the coupling sleeve, and an elastic member is provided between the end of the guide tooth and the guide groove so that the head end of the guide tooth protrudes from the internal spline of the coupling sleeve. During the gear shifting process, if there is an angular deviation between the internal spline of the coupling sleeve and the target gear coupling ring, then during the gear shifting process, since the guide tooth protrudes from the internal spline under the action of the elastic member, the guide tooth will first contact with the target gear coupling ring. After the guide tooth contacts the target gear coupling ring, a force is applied to the circumferential direction of the coupling sleeve, thereby causing the coupling sleeve to rotate, and then the internal spline of the coupling sleeve is aligned with the teeth of the target gear coupling ring, and finally the gear shift is completed by engagement.

[0011] Furthermore, in an embodiment of the present application, the guide groove is provided with a first limiting structure for circumferentially limiting the guide tooth.

[0012] Further, in an embodiment of the present application, the guide tooth is provided with a guide structure that contacts the target gear engagement ring gear.

[0013] Furthermore, in the embodiment of the present application, guide grooves and guide teeth facing opposite directions are respectively provided on both sides of the coupling sleeve.

[0014] Furthermore, in an embodiment of the present application, a spline hub assembly is also included, wherein the spline hub assembly includes a spline hub outer ring, a suspension gasket, and a spline hub inner ring, which are coaxially connected in sequence along the axial direction using limit members, and the spline hub outer ring, the suspension gasket and the spline hub inner ring have freedom of relative rotation. The spline hub outer ring is provided with a first window, and the suspension gasket and the spline hub inner ring are jointly provided with a second window, the first elastic component is arranged in the first window, and the second elastic component is arranged in the common second window.

[0015] Furthermore, in the embodiment of the present application, the limiting member is inserted into the first window, and first elastic components are provided on both sides of the limiting member and the first window.

[0016] Furthermore, in an embodiment of the present application, a sleeve is disposed on the outer sleeve of the limiting member, a mounting plane is opened on the sleeve in the circumferential direction, a second limiting structure cooperating with the first elastic component is disposed on the mounting plane, and the first window is provided with three limiting structures also used to cooperate with the first elastic component.

[0017] Further, in the embodiment of the present application, the stiffness of the first elastic component is smaller than the stiffness of the second elastic component.

[0018] Furthermore, in the embodiment of the present application, an avoidance groove for avoiding the limiting member is provided on the inner ring of the spline hub.

[0019] Furthermore, in the embodiment of the present application, a fourth limiting structure cooperating with the second elastic component is provided on the second window.

[0020] As can be seen from the above, an embodiment of the present application provides a gear meshing self-adjusting device, in which a guide groove and a guide tooth sliding in the guide groove are provided in the coupling sleeve, and an elastic member is provided between the end of the guide tooth and the guide groove so that the head end of the guide tooth protrudes from the inner spline of the coupling sleeve. During the gear shifting process, if there is an angular deviation between the inner spline of the coupling sleeve and the target gear coupling gear ring, then during the gear shifting process, since the guide tooth protrudes from the inner spline under the action of the elastic member, the guide tooth will first contact with the target gear coupling gear ring. After the guide tooth contacts the target gear coupling gear ring, a force is generated in the circumferential direction of the coupling sleeve, thereby causing the coupling sleeve to rotate, and then the inner spline of the coupling sleeve is aligned with the teeth of the target gear coupling gear ring, and finally the gear shift is completed by engagement. Therefore, the gear meshing self-adjusting device proposed in the present application has the beneficial effect of shortening the gear shifting time and reducing the impact vibration generated during the gear shifting process.

[0021] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the embodiments of the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a gear meshing self-adjusting device provided in an embodiment of the present application.

[0023] Figure 2 A partially enlarged schematic diagram of a gear meshing self-adjusting device provided in an embodiment of the present application.

[0024] Figure 3 A partially enlarged schematic diagram of a gear meshing self-adjusting device provided in an embodiment of the present application.

[0025] Figure 4 A schematic diagram of the guide tooth structure provided in an embodiment of the present application.

[0026] Figure 5 A schematic diagram of the structure of a gear meshing self-adjusting device provided in an embodiment of the present application.

[0027] Figure 6 A schematic diagram of the disassembled structure of the spline hub assembly provided in an embodiment of the present application.

[0028] Figure 7 This is a schematic diagram of the spline hub outer ring structure provided in an embodiment of the present application.

[0029] Figure 8 A schematic diagram of the suspension gasket structure provided in an embodiment of the present application.

[0030] Fig. 9 This is a schematic diagram of the key hub inner ring structure provided in an embodiment of the present application.

[0031] Fig.10 A schematic diagram of the sleeve structure provided in an embodiment of the present application.

[0032] Fig.11 A schematic diagram of the structure disassembly of a gear meshing self-adjusting device provided in an embodiment of the present application.

[0033] Fig.12 The present invention is a schematic diagram of automobile transmission using a gear meshing self-adjusting device of the present invention.

[0034] Fig.13 The present invention is a schematic diagram of automobile transmission using a gear meshing self-adjusting device of the present invention.

[0035] Fig.14 The present invention is a schematic diagram of automobile transmission using a gear meshing self-adjusting device of the present invention.

[0036] Fig.15 The present invention is a schematic diagram of automobile transmission using a gear meshing self-adjusting device of the present invention.

[0037] In the figure: 100, engagement sleeve; 200, guide tooth; 300, elastic member; 400, spline hub assembly; 500, target gear engagement ring; 600, power source; 700, differential reducer; 800, drive wheel; 110, guide groove; 120, internal spline; 210, tooth base; 220, tooth body; 230, guide structure; 410, first clamping plate; 420, spline hub outer ring; 430, suspension gasket; 440, inner ring of spline hub; 450, second clamping plate; 460, limit member; 470, first elastic component; 480, second elastic component; 490, sleeve; 111, first limit structure; 421, first window; 422, third limit structure; 423, external spline; 431, second window; 432, fourth limit structure; 441, avoidance groove; 491, mounting plane; 492, second limit structure. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with 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 of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0039] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0040] Please refer to Figures 1 to 15 , a gear meshing self-adjusting device, used to achieve fast gear shifting, its technical solution specifically includes:

[0041] The coupling sleeve 100 is provided with a guide groove 110 and an internal spline 120 for contacting and cooperating with the target gear engagement ring 500; wherein the center line of the guide groove 110 can be arranged parallel to the center line of the healthy tooth of the internal spline 120 of the coupling sleeve 100, or can be arranged at a certain inclination angle.

[0042] The guide tooth 200 is slidably disposed in the guide groove 110, and an elastic member 300 is disposed between the guide tooth 200 and the guide groove 110. In the neutral state, the elastic member 300 makes the guide tooth 200 protrude from the internal spline 120 of the coupling sleeve 100. The elastic member 300 may be a spring, or other elastic parts such as rubber, and the center lines of the head end and the tail end of the guide tooth 200 may be on the same straight line or may be arranged at a certain inclination angle, and the inclination angle and the center line of the guide groove 110 may be the same as the inclination angle of the center line of the healthy tooth of the internal spline 120 of the coupling sleeve 100.

[0043] According to the above technical solution, a guide groove 110 and a guide tooth 200 sliding in the guide groove 110 are provided in the coupling sleeve 100, and an elastic member 300 is provided between the end of the guide tooth 200 and the guide groove 110 so that the head end of the guide tooth 200 protrudes from the inner spline 120 of the coupling sleeve 100. During the gear shifting process, if there is an angular deviation between the inner spline 120 of the coupling sleeve 100 and the target gear engagement ring 500, then during the gear shifting process, due to the action of the elastic member 300, the guide tooth 200 Because the guide tooth 200 protrudes from the inner spline 120, it will first contact with the target gear engagement ring gear 500. After the guide tooth 200 contacts with the target gear engagement ring gear 500, it will generate a force in the circumferential direction of the engagement sleeve 100, thereby causing the engagement sleeve 100 to rotate, and then align the inner spline 120 of the engagement sleeve 100 with the teeth of the target gear engagement ring gear 500, and finally engage to complete the gear shift. This can not only quickly eliminate the angular difference and increase the gear shifting speed, but also reduce the impact vibration caused during the gear shifting process.

[0044] In addition, the solution adopted in the present application can replace the transmission meshing sleeve, eliminate the traditional synchronizer and the friction lock ring therein, avoid the occurrence of easy wear of parts and components, and effectively reduce the overall cost of use.

[0045] Specifically, in some specific implementations, multiple groups of guide grooves 110 and guide teeth 200 are provided, and the multiple groups of guide grooves 110 and guide teeth 200 are evenly distributed.

[0046] As one of the preferred schemes, three groups of guide grooves 110 and guide teeth 200 are arranged, and the three groups of guide grooves 110 and guide teeth 200 are evenly distributed. Arranging multiple groups of guide grooves 110 and guide teeth 200 can improve the smoothness during the engagement process of the coupling sleeve 100 and the target engagement gear ring. However, setting too many guide grooves 110 and guide teeth 200 will reduce the stability of the transmission after the engagement of the coupling sleeve 100 and the target engagement gear ring. Therefore, after comprehensive consideration, setting three or six groups of guide grooves 110 and guide teeth 200 is the most preferred scheme.

[0047] Furthermore, in some of the embodiments, the guide groove 110 is provided with a first limiting structure 111 for circumferentially limiting the guide tooth 200 .

[0048] Specifically, in some embodiments, the guide tooth 200 includes a tooth base 210 and a tooth body 220, and the two side surfaces of the tooth base 210 are set as inclined slopes. The first limiting structure 111 is extended from the two side surfaces of the guide groove 110 and has side baffles that cooperate with the two inclined slopes of the tooth base 210. That is, a part of the guide groove 110 forms a dovetail groove structure and then slides with the tooth base 210 to form a circumferential limit for the guide tooth 200.

[0049] In addition, the side surface of the guide tooth 200 may also be set as a vertical plane, and a groove may be opened on the guide groove 110 to match the side surface of the guide tooth 200 .

[0050] Through the above technical solution, the first limiting structure 111 is used to form a circumferential limit for the guide tooth 200, so that after the guide tooth 200 contacts the target gear engagement ring, it will generate a force on the engagement sleeve 100, causing the engagement sleeve 100 to rotate and then align with the target gear engagement ring. As one of the preferred solutions, the two side surfaces of the tooth base 210 are set as inclined surfaces, which can facilitate the force and improve the sliding effect of the guide tooth 200 in the guide groove 110.

[0051] Further, in some of the embodiments, the guide tooth 200 is provided with a guide structure 230 that contacts the target gear engagement ring gear.

[0052] Specifically, in some embodiments, the guide structure 230 is a guide tooth inclined surface provided on the guide tooth 200 and in contact with the target gear engagement ring, wherein the guide tooth inclined surface may be a single-sided inclined surface or a double-sided inclined surface.

[0053] Through the above technical solution, a guide tooth bevel is set on the guide tooth 200. When the guide tooth bevel contacts the target gear engagement ring gear, the teeth of the target engagement ring gear can be aligned with the internal spline 120 of the engagement sleeve 100 through the guide tooth bevel.

[0054] Furthermore, in some of the embodiments, guide grooves 110 and guide teeth 200 facing opposite directions are respectively disposed on both sides of the coupling sleeve 100 , and an elastic member 300 is disposed between the guide grooves 110 and the guide teeth 200 .

[0055] Through the above technical solution, the engagement sleeve 100 can move toward both sides of the axial direction to achieve contact and cooperation with different target gear rings, thereby achieving switching between different gears.

[0056] In addition, a protrusion or a groove cooperating with the elastic member 300 is also provided on the guide tooth 200 and the guide groove 110. When the elastic member 300 is a spring, a protrusion can be provided on the guide tooth 200 and the guide groove 110, and the spring can be sleeved on the protrusion to limit the spring. Alternatively, a groove can be provided on the guide tooth 200 and the guide groove 110, and the spring can be sleeved into the groove to limit the spring. By limiting the spring, the stability of the guide tooth 200 in the guide groove 110 is improved.

[0057] Furthermore, in some embodiments, a spline hub assembly 400 is also included, and the spline hub assembly 400 includes a first clamping disk 410, a spline hub outer ring 420, a suspension gasket 430, a spline hub inner ring 440 and a second clamping disk 450, which are coaxially connected in sequence along the axial direction using a limit member 460. The spline hub outer ring 420, the suspension gasket 430 and the spline hub inner ring 440 have the freedom of relative rotation. The limit member 460 axially limits the first clamping disk 410, the spline hub outer ring 420, the suspension gasket 430, the spline hub inner ring 440 and the second clamping disk 450. The spline hub outer ring 420 is provided with a first window 421, and the suspension gasket 430 and the spline hub inner ring 440 are jointly provided with a second window 431. The first elastic component 470 is arranged in the first window 421, and the second elastic component 480 is arranged in the common second window 431.

[0058] Specifically, the first clamping plate 410 is arranged on the outer layer of the belly panel of the spline hub inner ring 440, and the second clamping plate 450 is arranged on the outer side of the belly panel of the spline hub outer ring 420. The belly panel of the spline hub inner ring 440 and the belly panel of the spline hub outer ring 420 are matched and connected by the first clamping plate 410, the second clamping plate 450 and the limiting member 460. The first clamping plate 410 and the second clamping plate 450 mainly play a supporting and protective role, and the limiting member 460 can be a rivet.

[0059] Among them, the outer wall of the spline hub outer ring 420 is provided with an external spline 423, the spline hub outer ring 420 and the coupling sleeve 100 are connected and matched through the internal spline 120 and the external spline 423, the limit member 460 is inserted into the first window 421, and the first elastic component 470 is provided on both sides of the limit member 460 and the first window 421. The spline hub inner ring 440 is provided with an avoidance groove 441 for avoiding the limit member 460, and the first elastic component 470 and the second elastic component 480 are both springs. The same spring cannot make the spline hub inner ring 440 and the spline hub outer ring 420 directly subjected to force, and both need to transmit torque through the suspension gasket 430.

[0060] Specifically, when the coupling sleeve 100 contacts the target gear ring, if there is an angle difference between the internal spline 120 of the coupling sleeve 100 and the teeth of the target gear ring, the guide tooth 200 first contacts the teeth of the target gear ring, and then the guide tooth 200 generates a circumferential force on the coupling sleeve 100 to rotate the coupling sleeve 100, and the coupling sleeve 100 drives the spline hub outer ring 420 to rotate. When the spline hub outer ring 420 rotates, the first window 421 squeezes the first elastic component 470 on the limiter 460, and the first elastic component 470 absorbs impact vibration. As the spline hub outer ring 420 continues to rotate, the first elastic component 470 squeezes the limit member 460, and the limit member 460 is inserted into the suspension gasket 430, so that the suspension gasket 430 is driven to rotate under the action of the limit member 460. Since the suspension gasket 430 and the spline hub inner ring 440 are provided with a common second window 431, and the second elastic component 480 is arranged in the common second window 431, the suspension gasket 430 squeezes the second elastic component 480 through the second window 431, and the impact vibration generated during the gear shifting process is further absorbed by the second elastic component 480.

[0061] Through the above technical solution, when the coupling sleeve 100 contacts the target coupling ring gear, a gear shift shock will be generated. Through the first elastic member 300 and the second elastic member 300 in the spline hub assembly 400, a spline hub assembly with two-stage torsional vibration is formed, which can effectively alleviate the gear shift shock during the gear shifting process.

[0062] Furthermore, in some of the embodiments, a sleeve 490 is provided on the outer shell of the limiting member 460, and a mounting plane 491 is opened on the sleeve 490 in the circumferential direction, and a second limiting structure 492 cooperating with the first elastic component 470 is provided on the mounting plane 491, and the first window 421 is provided with a third limiting structure 422 which is also used to cooperate with the first elastic component 470.

[0063] Specifically, the second limiting structure 492 and the third limiting structure 422 can be protrusions or grooves. When the first elastic component 470 is a spring, the spring is sleeved on the protrusion or the groove to limit the spring, thereby improving stability.

[0064] Among them, the second limiting structure 492 can be set as a protrusion and the third limiting structure 422 can be set as a groove, or the second limiting structure 492 can be set as a groove and the third limiting structure 422 can be set as a protrusion, or the second limiting structure 492 and the third limiting structure 422 can be set as a protrusion or a groove together.

[0065] Through the above technical solution, a sleeve 490 is provided on the outer sleeve of the limit member 460, wherein the sleeve 490 is passed through the suspension gasket 430, and force transmission is realized through the sleeve 490. On the one hand, the sleeve 490 contacts the first elastic component 470, so that the first elastic component 300 is deformed by force and thus absorbs impact vibration. On the other hand, the force is transmitted to the suspension gasket 430, so that the suspension gasket 430 squeezes the second elastic component 480, so that the second elastic component 480 further absorbs impact vibration.

[0066] Further, in some embodiments, the stiffness of the first elastic component 470 is smaller than the stiffness of the second elastic component 480 .

[0067] Through the above technical scheme, the first elastic component 470 makes the spring damping force of the spline hub outer ring 420 smaller during the circumferential rotation process. When the coupling sleeve 100 rotates under the action of the guide tooth 200, the coupling sleeve 100 drives the spline hub outer ring 420 to rotate. The first elastic component 470 in the spline hub outer ring 420 preferentially absorbs the impact generated when the guide tooth 200 contacts the target engaging gear ring. The second elastic component 480 has a larger stiffness, which is used to ensure that when the guide tooth 200 contacts the target engaging gear ring, the coupling sleeve 100 can smoothly rotate through a certain deflection angle. Under the two-stage torsional vibration structure composed of the first elastic component 470 and the second elastic component 480, the entire gear shifting process can be made smooth, effectively absorbing the circumferential impact generated during the contact between the guide tooth 200 and the target engaging gear ring, and being able to tolerate a certain speed difference, effectively reducing the impact vibration generated during the gear shifting process.

[0068] Furthermore, in some of the embodiments, a fourth limiting structure 432 cooperating with the second elastic component 480 is disposed on the second window 431 .

[0069] Specifically, the fourth limiting structure 432 can be a protrusion or a groove. When the second elastic component 480 is a spring, the spring is sleeved on the protrusion or the groove to limit the spring, thereby improving stability.

[0070] Reference Figures 12 to 15 By using a gear meshing self-adjusting device provided by the present application, during gear shifting of the automobile, the power source 600 transmits power through the transmission shaft, and the coupling sleeve 100 is made to slide left and right on the spline hub assembly 400, so that the coupling sleeve 100 is matched with the target gear engagement ring gear 500 on the left and right sides, and then the power is transmitted to the differential reducer 700 according to different gears through the transmission shaft. The differential reducer 700 is a differential, and then the power is further transmitted to the drive wheel 800 to realize driving.

[0071] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gear meshing self-adjusting device for realizing rapid gear shifting, characterized in that: include: An engagement sleeve (100), wherein a guide groove (110) and an internal spline (120) for contacting and cooperating with a target gear engagement ring (500) are provided in the engagement sleeve (100); A guide tooth (200), the guide tooth (200) being slidably disposed in the guide groove (110), an elastic member (300) being disposed between the guide tooth (200) and the guide groove (110), the elastic member (300) making the guide tooth (200) protrude from the internal spline (120) of the coupling sleeve (100); It also includes a spline hub assembly (400), the spline hub assembly (400) including a spline hub outer ring (420), a suspension gasket (430), and a spline hub inner ring (440) which are coaxially connected in sequence along the axial direction using a stopper (460), the spline hub outer ring (420), the suspension gasket (430), and the spline hub inner ring (440) have a relative rotational freedom, the spline hub outer ring (420) is provided with a first window (421), the suspension gasket (430) and the spline hub inner ring (440) are jointly provided with a second window (431), a first elastic component (470) is provided in the first window (421), and a second elastic component (480) is provided in the second window (431); The limiting member (460) is inserted into the first window (421), and first elastic components (470) are provided on both sides of the limiting member (460) and the first window (421); The limiting member (460) is provided with a sleeve (490) on its outer shell, and the sleeve (490) is provided with a mounting plane (491) in the circumferential direction, and the mounting plane (491) is provided with a second limiting structure (492) for cooperating with the first elastic member (470), and the first window (421) is provided with a third limiting structure (422) also for cooperating with the first elastic member (470).

2. A gear meshing self-adjusting device according to claim 1, characterized in that: The guide groove (110) is provided with a first limiting structure (111) for circumferentially limiting the guide tooth (200).

3. The gear meshing self-adjusting device according to claim 1, characterized in that: The guide tooth (200) is provided with a guide structure (230) that contacts the target gear engagement ring gear (500).

4. The gear meshing self-adjusting device according to claim 1, characterized in that: The two sides of the coupling sleeve (100) are respectively provided with guide grooves (110) and guide teeth (200) facing in opposite directions.

5. The gear meshing self-adjusting device according to claim 1, characterized in that: The rigidity of the first elastic component (470) is smaller than the rigidity of the second elastic component (480).

6. The gear meshing self-adjusting device according to claim 1, characterized in that: The spline hub inner ring (440) is provided with an avoidance groove for avoiding the limiting member (460).

7. The gear meshing self-adjusting device according to claim 1, characterized in that: The second window (431) is provided with a fourth limiting structure (432) that cooperates with the second elastic component (480).

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