CN213064570U

CN213064570U - Synchronously rotatable sun wheel set

Info

Publication number: CN213064570U
Application number: CN202021208584.9U
Authority: CN
Inventors: 薛忠余; 李三帅; 马长智
Original assignee: Shengrui Transmission Co Ltd
Current assignee: Shengrui Transmission Co Ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-04-27
Anticipated expiration: 2030-06-24

Abstract

The disclosure relates to the technical field of automatic transmissions, and provides a sun gear set capable of synchronously rotating. The sun wheel set comprises a first body and a second body, a first sleeve is arranged on one side of the first body, a second sleeve is arranged on one side of the second body, the first sleeve is sleeved on the periphery of the second sleeve, a plurality of first clamping blocks are arranged on the inner wall of the first sleeve, a plurality of second clamping blocks are arranged on the periphery of the second sleeve, the first clamping blocks and the second clamping blocks are staggered with each other, a gap for lubricating oil to flow into is formed between the end portion of the second sleeve and the side wall of the first body, and an oil duct communicated with the gap is arranged on the first sleeve. The split type design mode is adopted in the solar wheel set, the processing convenience is improved, the circumferential freedom degree of the first body and the second body is limited through the adjacent first clamping block and the second clamping block, the structural design is ingenious, lubricating oil flows to the oil duct through the gap between the second sleeve and the first clamping block, the lubricating effect is achieved, the structure is compact, and the space is reasonably utilized.

Description

Synchronously rotatable sun wheel set

Technical Field

The present disclosure relates to automatic transmissions, and more particularly to a sun gear set capable of synchronously rotating.

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.

Specifically, a plurality of groups of planetary gear mechanisms and a plurality of shifting elements are arranged in a shell of the transmission, and different rotating speeds are output through matching between different planetary gear mechanisms and the shifting elements. In the partial transmission of the prior art, the sun gears of two adjacent planetary gear mechanisms inside the partial transmission rotate synchronously, and for this reason, the two sun gears are generally designed integrally, so that the rotation states of the two sun gears are ensured to be the same. However, the two ends of the connecting sleeve of the integrated sun gear are both provided with gear rings, but the two gear rings are different in size, so that the integrated sun gear is difficult to machine and difficult to realize.

SUMMERY OF THE UTILITY MODEL

To solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides a sun gear set that is synchronously rotatable.

The invention discloses a sun wheel set capable of synchronously rotating, which comprises a first body and a second body, wherein one side of the first body is extended and provided with a first sleeve, one side of the second body is extended and provided with a second sleeve, a mounting groove matched with the shape of the first sleeve is formed between the periphery of the second sleeve and the side wall of the second body, the first sleeve is sleeved on the periphery of the second sleeve, the inner wall of the first sleeve is provided with a plurality of first clamping blocks at intervals along the circumferential direction, the periphery of the second sleeve is provided with a plurality of second clamping blocks at intervals along the circumferential direction, when the end part of the first sleeve is supported on the side wall of the second body, each first clamping block and each second clamping block are mutually staggered, and a gap for lubricating oil to flow in is formed between the end part of the second sleeve and the side wall of the first body, and the first sleeve is provided with an oil duct communicated with the gap.

Optionally, one side of the first body, which is far away from the first sleeve, is provided with an annular plate, and a limiting groove for mounting a thrust bearing is formed between the periphery of the annular plate and the side wall of the first body.

Optionally, the inner diameter of the annular plate is the same as the inner diameter of the first body.

Optionally, the outer periphery of the first body is provided with an annular groove for connection with an inner hub of a brake.

Optionally, the outer diameter of the second body is larger than the outer diameter of the first body.

Optionally, the oil passage is inclined toward a direction away from the first body.

Optionally, the adjacent first fixture block and the second fixture block are in interference fit.

Optionally, the first body and the second body each include a rim and gear teeth disposed on an outer periphery of the rim.

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

the split type design mode is adopted in the solar wheel set, the processing convenience is improved, the circumferential freedom degree of the first body and the second body is limited through the adjacent first clamping block and the second clamping block, the structural design is ingenious, lubricating oil flows to the oil duct through the gap between the second sleeve and the first clamping block, the lubricating effect is achieved, the structure is compact, and the space is reasonably utilized.

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 illustration of a sun gear set mounted within a transmission according to an embodiment of the present disclosure;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic illustration of a sun gear set according to an embodiment of the disclosure;

FIG. 4 is a schematic view of the first body according to the embodiment of the disclosure;

FIG. 5 is a schematic view of the interior of the first body according to the embodiment of the disclosure

Fig. 6 is a schematic view of a second body according to an embodiment of the disclosure.

Wherein, 1, a first body; 11. an annular plate; 12. an annular groove; 2. a second body; 3. a first sleeve; 31. a first clamping block; 32. an oil passage; 4. a second sleeve; 41. a second fixture block; 5. a gap; 6. a rim; 61. gear teeth; 7. an inner hub.

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.

Referring to fig. 1, 2 and 3, a sun gear set capable of synchronously rotating according to an embodiment of the present disclosure includes a first body 1 and a second body 2. As shown in fig. 4 and 5, a first sleeve 3 extends from one side of the first body 1, wherein the first sleeve 3 is disposed near an outer ring of the first body 1. As shown in fig. 6, a second sleeve 4 extends from one side of the second body 2, wherein the second sleeve 4 is disposed near the inner ring of the second body 2. An installation groove matched with the shape of the first sleeve 3 is formed between the periphery of the second sleeve 4 and the side wall of the second body 2, and the first sleeve 3 is sleeved on the periphery of the second sleeve 4. The matching at this place means that when first sleeve 3 overlaps in the periphery of second sleeve 4, the inner wall of first sleeve 3 and the outer lane of second sleeve 4 are laminated mutually, and the tip of first sleeve 3 can support at the lateral wall of second body 2.

As shown in fig. 5, the inner wall of the first sleeve 3 is provided with a plurality of first latches 31 at intervals along the circumferential direction thereof, and as shown in fig. 6, the outer periphery of the second sleeve 4 is provided with a plurality of second latches 41 at intervals along the circumferential direction thereof. The first and

second cartridges

31 and 41 have the same number, and both the first and

second cartridges

31 and 41 have elongated shapes. When the end of the first socket 3 is supported at the sidewall of the second body 2, the respective first and

second latch

31 and 41 are staggered with each other. Preferably, the adjacent first latch 31 and the second latch 41 are in interference fit, so that the first body 1 and the second body 2 are ensured to rotate synchronously. As shown in fig. 1 and 2, a gap 5 into which lubricating oil can flow is formed between the end of the second sleeve 4 and the sidewall of the first body 1, and an oil passage 32 communicating with the gap 5 is provided on the first sleeve 3. The gap 5 is located opposite to the oil passage of the transmission so that the lubricating oil can enter the oil passage 32 through the gap 5, thereby lubricating the respective components.

This disclosed sun gear group adopts split type design, increases the convenience of processing, and through adjacent first fixture block 31 and the circumference degree of freedom of second fixture block 41 restriction first body 1 and second body 2, structural design is ingenious, and lubricating oil plays lubricated effect through 5 flow direction oil ducts 32 in the clearance between second sleeve 4 and the first fixture block 31, compact structure, the rational utilization space.

Referring to fig. 3 and 4, an annular plate 11 is disposed on one side of the first body 1 away from the first sleeve 3, and a limit groove for mounting a thrust bearing is formed between the outer periphery of the annular plate 11 and the side wall of the first body 1. The installation of the thrust bearing is convenient, and the occupied space is saved. Wherein, the other side of the second body 2 is limited by a thrust bearing, so as to ensure the limiting effect of the first body 1 and the second body 2. Further optimally, the inner diameter of the annular plate 11 is the same as the inner diameter of the first body 1, facilitating the machining of the annular plate 11.

As shown in connection with fig. 3 and 4, the outer periphery of the first body 1 is provided with an annular groove 12 for connection with the inner hub 7 of the brake. The annular groove 12 is connected with the inner hub 7 of the brake, and then the working states of the first body 1 and the second body 2 are controlled through the brake, so that the structure is simple, and other connecting structures are not required. And this kind of design makes first body 1 and second body 2 directly set up in the periphery of the input shaft of derailleur through the copper sheathing, increases pivoted gentleness.

As shown in fig. 2 and 3 in conjunction, the outer diameter of the second body 2 is larger than the outer diameter of the first body 1, and the oil passage 32 is provided obliquely toward a direction away from the first body 1. Make the lubricating oil flow direction second body 2 through oil duct 32 outflow, and then block lubricating oil through the lateral wall of second body 2, lubricating oil piles up at the lateral wall of second body 2, and the effect of rethread centrifugal force is thrown away lubricating oil, avoids lubricating oil to flow at will, increases lubricated effect.

As shown in fig. 3 to 6, each of the first body 1 and the second body 2 includes a rim 6 and gear teeth 61 provided on an outer periphery of the rim 6. Specifically, the shape and pitch of the gear teeth 61 are designed according to actual requirements.

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 sun wheel set capable of synchronously rotating is characterized by comprising a first body (1) and a second body (2), wherein a first sleeve (3) extends from one side of the first body (1), a second sleeve (4) extends from one side of the second body (2), an installation groove matched with the first sleeve (3) in shape is formed between the periphery of the second sleeve (4) and the side wall of the second body (2), the first sleeve (3) is sleeved on the periphery of the second sleeve (4), a plurality of first clamping blocks (31) are arranged on the inner wall of the first sleeve (3) at intervals along the circumferential direction of the inner wall, a plurality of second clamping blocks (41) are arranged on the periphery of the second sleeve (4) at intervals along the circumferential direction of the outer wall, and when the end of the first sleeve (3) is supported on the side wall of the second body (2), each first fixture block (31) and each second fixture block (41) are mutually staggered, a gap (5) for lubricating oil to flow into is formed between the end part of the second sleeve (4) and the side wall of the first body (1), and an oil passage (32) communicated with the gap (5) is formed in the first sleeve (3).

2. The sun set capable of synchronously rotating according to claim 1, wherein a side of the first body (1) far away from the first sleeve (3) is provided with an annular plate (11), and a limiting groove for mounting a thrust bearing is formed between the outer periphery of the annular plate (11) and the side wall of the first body (1).

3. Set according to claim 2, characterized in that the inner diameter of the annular plate (11) is the same as the inner diameter of the first body (1).

4. A set as claimed in claim 1, characterised in that the periphery of the first body (1) is provided with an annular groove (12) for connection with the inner hub (7) of the brake.

5. -set according to claim 1, characterized in that the external diameter of the second body (2) is greater than the external diameter of the first body (1).

6. A set according to claim 1, characterised in that the oil channel (32) is arranged obliquely away from the first body (1).

7. The sun set according to claim 1, wherein the adjacent first engaging block (31) and the second engaging block (41) are in interference fit.

8. Set according to claim 1, characterized in that said first body (1) and said second body (2) each comprise a rim (6) and gear teeth (61) arranged on the periphery of said rim (6).