CN113280054A

CN113280054A - Mounting structure of clutch assembly for transmission and transmission

Info

Publication number: CN113280054A
Application number: CN202110725936.0A
Authority: CN
Inventors: 马长智; 刘赛赛; 张广瀚; 李三帅; 万全喜
Original assignee: Shengrui Transmission Co Ltd
Current assignee: Shengrui Transmission Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-08-20

Abstract

The utility model relates to the technical field of speed changer, this mounting structure and derailleur of clutch assembly for speed changer, including coaxial input shaft, rotor shaft and the sprocket that sets up, the surface of input shaft is equipped with the external splines, be equipped with first internal spline on the rotor shaft, first internal spline with external splines cooperation is connected, be equipped with the second internal spline on the sprocket, the second internal spline with external splines cooperation is connected, this structure can realize that the sprocket directly is connected with the input shaft transmission, when making the installation rotor shaft, need not align with the external splines on the input shaft and insert can with the external splines on the input shaft surface when, adjust the external special-shaped key on the rotor shaft and the internal special-shaped key on the sprocket and make it cooperate, only need align the external splines on the first internal spline on the rotor shaft and the input shaft surface and insert, greatly reduced the installation degree of difficulty, reduced the installation time of rotor shaft by a wide margin, the working efficiency of the whole assembly work is improved.

Description

Mounting structure of clutch assembly for transmission and transmission

Technical Field

The disclosure relates to the technical field of transmissions, in particular to a mounting structure of a clutch assembly for a transmission and the transmission.

Background

An automotive transmission is a set of transmission devices for coordinating the rotational speed of an engine and the actual driving speed of wheels, and is used for exerting the best performance of the engine. The transmission can generate different gear ratios between an engine and wheels during the running process of the automobile, and the transmission of the rotating speeds of different gears is realized.

The manual transmission mainly comprises gears and a rotating shaft, and the speed change and torque change are generated by different gear combinations; the automatic transmission AT consists of a hydraulic torque converter, a planetary gear and a hydraulic control system, and achieves the purposes of speed and torque changing through a hydraulic transmission and gear combination mode.

Among them, the automatic transmission has advantages of comfortable driving, reducing fatigue of driver, etc., and has become a development direction of modern car configuration. The automatic transmission utilizes a planetary gear mechanism to change speed, can automatically change speed according to the degree of an accelerator pedal and the change of vehicle speed, and a driver only needs to operate the accelerator pedal to control the vehicle speed, so that the driver can watch road traffic with full attention without being confused by gear shifting.

Although the automatic transmission has many advantages in use, the complex structure inside the automatic transmission brings many troubles for installation.

At present, when a clutch assembly is installed, a rotor shaft is in transmission connection with an external spline on an input shaft through an internal spline, and meanwhile, the rotor shaft is provided with an external special-shaped key to be in transmission connection with an internal special-shaped key on a chain wheel.

Disclosure of Invention

In order to solve when the installation clutch assembly, both need to make the external spline of the internal spline of rotor shaft and input shaft align, need guarantee again that the external special-shaped key of rotor shaft aligns with the internal special-shaped key on the sprocket, lead to the installation to waste a lot of time, influenced the technical problem of the efficiency of whole installation work, the present disclosure provides a clutch assembly's for derailleur mounting structure.

In a first aspect, the present disclosure provides a clutch assembly's for derailleur mounting structure, input shaft, rotor shaft and sprocket including coaxial setting, the surface of input shaft is equipped with the external splines, the epaxial first internal splines that are equipped with of rotor, first internal splines with the external splines cooperation is connected, be equipped with the second internal splines on the sprocket, the second internal splines with the external splines cooperation is connected.

Optionally, the chain wheel further comprises a stator shaft coaxially arranged with the input shaft, a metal sleeve is sleeved on the stator shaft, a first annular structure is arranged on one side, facing the stator shaft, of the chain wheel, and the chain wheel is sleeved on the outer surface of the metal sleeve through the first annular structure.

Optionally, the rotor shaft includes transmission portion, stabilizer and connecting portion, connecting portion are used for connecting transmission portion with stabilizer, the inner wall of transmission portion is equipped with the second internal spline, stabilizer is used for the cover on the open-ended annular structure of motor set casing tip.

Optionally, one side of the chain wheel facing the transmission part is provided with a second annular structure, and the transmission part extends into the second annular structure.

Optionally, the outer wall of the transmission part is attached to the inner wall of the second annular structure.

Optionally, the outer wall of the second annular structure is connected with the motor fixing shell through a first bearing.

Optionally, the first bearing is a roller bearing.

Optionally, the stabilizing part is connected with the motor fixing shell through a second bearing.

Optionally, the second bearing is a ball bearing.

In a second aspect, the present disclosure also provides a transmission including a mounting structure as described above.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the utility model provides a clutch assembly's for derailleur mounting structure and derailleur, can realize that the sprocket is direct to be connected with the input shaft transmission, when making the installation rotor shaft, need not be when the external spline with the input shaft matches, the epaxial outer special-shaped key of rotor and the epaxial interior special-shaped key of sprocket make its cooperation to adjust again, only need with the epaxial first internal spline of rotor and the surperficial external spline alignment of input shaft insert can, greatly reduced the installation degree of difficulty, the installation time of rotor shaft has been reduced by a wide margin, improve the work efficiency of whole assembly work.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic structural diagram illustrating an exemplary mounting structure for a transmission clutch assembly according to an embodiment of the present disclosure;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

Wherein, 1, an input shaft; 11. an external spline; 2. a rotor shaft; 21. a first internal spline; 22. a transmission section; 23. a stabilizer; 24. a connecting portion; 3. a sprocket; 31. a first cyclic structure; 32. a second annular structure; 33. a second internal spline; 4. a stator shaft; 5. a metal sheath; 6. a first bearing; 7. a motor fixing shell; 8. a second bearing.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

The prior art is mainly that the rotor shaft is in transmission connection with an external spline on the input shaft through an internal spline, and the rotor shaft is also provided with an external special-shaped key to be in transmission connection with an internal special-shaped key on the chain wheel.

Based on this, this embodiment provides a clutch assembly's for derailleur mounting structure and derailleur, can realize that the sprocket is direct to be connected with the input shaft transmission, when making the installation rotor shaft, need not match with the external spline of input shaft, the epaxial outer special-shaped key of rotor and the epaxial interior special-shaped key of sprocket make its cooperation to adjust again, only need with the epaxial first internal spline of rotor and the surperficial external spline alignment of input shaft insert can, greatly reduced the installation degree of difficulty, the installation time of rotor shaft has been reduced by a wide margin, improve the work efficiency of whole assembly work. This is illustrated in detail by the following specific examples:

referring to fig. 1 to 2, the mounting structure of a clutch assembly for a transmission provided in this embodiment includes an input shaft 1, a rotor shaft 2, and a sprocket 3 coaxially disposed, an external spline 11 is disposed on a surface of the input shaft 1, a first internal spline 21 is disposed on the rotor shaft 2, the first internal spline 21 is connected to the external spline 11 in a matching manner, a second internal spline 33 is disposed on the sprocket 3, and the second internal spline 33 is connected to the external spline 11 in a matching manner, so that the sprocket 3 can be directly connected to the input shaft 1 in a transmission manner, when the rotor shaft 2 is mounted, it is not necessary to adjust an external spline on the rotor shaft 2 to match an internal spline on the sprocket 3 while the external spline 11 on the input shaft 1 is matched, it is only necessary to insert the first internal spline 21 on the rotor shaft 2 into the external spline 11 on the surface of the input shaft 1 in an aligning manner, which greatly reduces the mounting difficulty and the mounting time of the rotor shaft 2, the working efficiency of the whole assembly work is improved.

Wherein, still include the stator shaft 4 with the coaxial setting of input shaft 1, the cover has metal covering 5 on the stator shaft 4, sprocket 3 is provided with first loop configuration 31 towards one side of stator shaft 4, sprocket 3 overlaps on the surface of metal covering 5 through first loop configuration 31, setting up through metal covering 5 can provide stable support for sprocket 3, reduce sprocket 3's runout, make second internal spline 33 and external splines 11 on sprocket 3 only need play the transmission effect can, the life-span of overall structure is longer, work is more reliable, it explains that metal covering 5 can be made for difficult single metal or the alloy that takes place the deformation such as copper or steel.

Preferably, the rotor shaft 2 includes a transmission portion 22, a stabilization portion 23 and a connection portion 24, the connection portion 24 is used for connecting the transmission portion 22 and the stabilization portion 23, the inner wall of the transmission portion 22 is provided with a second internal spline 33, and the stabilization portion 23 is used for being sleeved on an annular structure of the end opening of the motor fixing shell 7.

Exemplarily, one side that sprocket 3 faced drive division 22 is provided with second annular structure 32, and drive division 22 stretches into the inside of second annular structure 32, when one of the two during operation takes place great rocking time, can play better limiting effect through another's lateral wall or inside wall, reduces its range of rocking, guarantees that the work of whole derailleur is more stable.

It should be noted that the outer wall of the transmission part 22 is attached to the inner wall of the second annular structure 32, and the two can be attached to each other through the contact surface, so as to provide more reliable support for each other, and reduce the occurrence of the shaking of the rotor shaft 2 and the sprocket 3 due to the fit clearance of the spline connection.

During concrete implementation, the outer wall of the second annular structure 32 is connected with the motor fixing shell 7 through the first bearing 6, it should be noted that the first bearing 6 is a roller bearing, so that the indirect contact area between the chain wheel 3 and the motor fixing shell 7 can be increased, and the stability of the chain wheel 3 is further improved.

Wherein, the stable portion 23 is connected with the motor fixing shell 7 through the second bearing 8, it should be noted that the second bearing 8 is a ball bearing, wherein the outside of the second bearing 8 is in interference fit with the rotor shaft 2, and the inside is in interference fit with the motor fixing shell 7, so that the rotor shaft 2 can stably maintain the relative position of the input shaft 1 after the installation.

The present disclosure also provides a transmission including the mounting structure as described above, which has a short assembly time and high efficiency when mounted, and the internal structure is very stable in operation.

The specific implementation manner and implementation principle are the same as those of the above embodiments, and can bring the same or similar technical effects, and therefore, detailed description is not repeated herein, and specific reference can be made to the description of the mounting structure embodiment of the clutch assembly for a transmission.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a mounting structure of clutch assembly for derailleur, its characterized in that, input shaft (1), rotor shaft (2) and sprocket (3) including coaxial setting, the surface of input shaft (1) is equipped with external splines (11), be equipped with first internal spline (21) on rotor shaft (2), first internal spline (21) with external splines (11) cooperation is connected, be equipped with second internal spline (33) on sprocket (3), second internal spline (33) with external splines (11) cooperation is connected.

2. The mounting structure of the clutch assembly for the transmission according to claim 1, further comprising a stator shaft (4) coaxially disposed with the input shaft (1), wherein a metal sleeve (5) is sleeved on the stator shaft (4), a first annular structure (31) is disposed on a side of the sprocket (3) facing the stator shaft (4), and the sprocket (3) is sleeved on an outer surface of the metal sleeve (5) through the first annular structure (31).

3. The mounting structure of the clutch assembly for the transmission according to claim 1, wherein the rotor shaft (2) includes a transmission portion (22), a stable portion (23) and a connecting portion (24), the connecting portion (24) is used for connecting the transmission portion (22) and the stable portion (23), the inner wall of the transmission portion (22) is provided with the second internal spline (33), and the stable portion (23) is used for being sleeved on an annular structure with an opening at the end of a motor fixing shell (7).

4. The mounting structure of a clutch assembly for a transmission according to claim 3, characterized in that a side of the sprocket (3) facing the transmission part (22) is provided with a second annular structure (32), and the transmission part (22) protrudes into the second annular structure (32).

5. The mounting structure of a clutch assembly for a transmission according to claim 4, wherein an outer wall of the transmission portion (22) is in abutment with an inner wall of the second annular structure (32).

6. The mounting structure of a clutch assembly for transmissions according to claim 4, wherein the outer wall of the second annular structure (32) is connected to the motor fixing case (7) through the first bearing (6).

7. The mounting structure of a clutch assembly for transmissions according to claim 6, wherein the first bearing (6) is a roller bearing.

8. The mounting structure of a clutch assembly for transmissions according to claim 3, wherein the stabilizer (23) is connected to the motor fixing case (7) through a second bearing (8).

9. The mounting structure of a clutch assembly for transmissions according to claim 8, wherein the second bearing (8) is a ball bearing.

10. A transmission characterized by comprising the mounting structure according to any one of claims 1 to 9.