CN218971810U - Planet carrier assembly - Google Patents

Abstract

The utility model provides a planet carrier assembly, which is positioned at the rear side of a transmission part and the front side of a clutch hub, and comprises a planet carrier body and a plurality of bosses; the planet carrier body can rotate around a rotation axis along the front-back direction; the front side of the planet carrier body is fixedly provided with a fixing ring which protrudes forwards, and the circle center of the fixing ring is the rotation axis of the planet carrier body; the fixed ring can be in transmission connection with the transmission piece sleeved on the fixed ring, so that the fixed ring can transmit power to the transmission piece; the rear side surface of the planet carrier body is abutted against the clutch hub; the plurality of bosses are arranged on the front side surface of the planet carrier body and are arranged at intervals along the outer peripheral side of the fixing ring; the front side of the boss is abutted against the rear side of the transmission piece. In the motion process of the planet carrier body, the boss and the clutch hub provide axial support for the planet carrier body, so that the movement of the planet carrier body on the axis is limited, the stability of the transmission is improved, and the service life of the transmission is prolonged.

Description

Planet carrier assembly

Technical Field

The utility model relates to the technical field of vehicles, in particular to a planet carrier assembly.

Background

With the development of national economy and the improvement of living standard of people, an automobile is taken as a transportation means and has become an indispensable part of daily life of people. Along with the continuous increase of the quantity of the automobile, the society has increasingly greater requirements on energy conservation and emission reduction of the automobile, and the automobile speed changer gradually develops to the aspects of multi-gear and mixed motion.

The planet carrier assembly member is an important component of the transmission for multiple gear and hybrid. During operation, the front side of the planet carrier engages the transmission element and transmits power into the transmission element. The rear end of the planet carrier abuts the clutch hub to provide axial support for the planet carrier. However, in the assembly process of the existing planet carrier assembly, a gap exists between the transmission part and the planet carrier in the axial direction, so that the planet carrier is easy to move forwards along the axial direction in the turnover process, the stability of the planet carrier assembly is damaged, and the service life of the transmission is reduced.

Disclosure of Invention

The utility model aims to provide a planet carrier assembly, which improves the stability of a transmission and prolongs the service life of the transmission.

In order to solve the technical problems, the utility model adopts the following technical scheme:

according to one aspect of the present utility model, there is provided a planet carrier assembly located on a rear side of a transmission member and a front side of a clutch hub, the planet carrier assembly comprising a planet carrier body and a plurality of bosses; the planet carrier body can rotate around a rotation axis along the front-back direction; a fixed ring protruding forwards is fixedly arranged on the front side of the planet carrier body, and the circle center of the fixed ring is the rotation axis of the planet carrier body; the fixed ring can be in transmission connection with the transmission piece sleeved on the fixed ring, so that the fixed ring can transmit power to the transmission piece; the rear side surface of the planet carrier body is abutted against the clutch hub; the plurality of bosses are arranged on the front side surface of the planet carrier body, and the plurality of bosses are arranged at intervals along the outer peripheral side of the fixed ring; the front side of the boss abuts against the rear side of the transmission piece.

In some embodiments, splines extending in the front-rear direction are protruding on the periphery of the fixing ring, and the fixing ring is in transmission connection with the transmission member through the splines.

In some embodiments, the front side of the boss is provided with an annular washer, which is coaxial with the fixing ring; the front side of the annular gasket abuts against the rear side of the transmission piece.

In some embodiments, the planet carrier body is provided with a plurality of planet holes, the plurality of planet holes are arranged at intervals along the periphery of the planet carrier body, the planet holes penetrate through the planet carrier body along the front-back direction, and the planet carrier body accommodates the planet wheels at the planet holes; the planet carrier assembly further comprises an oil collecting ring, the oil collecting ring is connected with the rear side wall of the planet carrier body in a clamping mode, and the part of the oil collecting ring stretches into the planet hole.

In some embodiments, the rear side wall of the planet carrier body is provided with a clamping hole, and the front side wall of the oil collecting ring is protruded with a clamping hook.

In some embodiments, the oil collection ring is coaxial with the stationary ring; the front side surface of the oil collecting ring is convexly provided with an oil nozzle, and the oil nozzle extends into the planet hole on the rear side wall of the planet carrier body.

In some embodiments, an oil circuit is provided in the oil collecting ring, and the oil circuit is communicated with the oil nozzle.

In some embodiments, a rear sidewall of the oil collecting ring is recessed with a lubrication groove extending radially of the oil collecting ring, the lubrication groove being in communication with the oil passage.

In some embodiments, the retaining ring is welded to a front sidewall of the planet carrier body, which is welded to a rear sidewall of the planet carrier body.

In some embodiments, a chamfer is provided on the peripheral side of the boss front end.

According to the technical scheme, the utility model has at least the following advantages and positive effects:

in the present utility model, a carrier assembly is assembled to form a transmission, the carrier assembly being used to regulate the rotational speed of the transmission. The planet carrier body rotates around the axis of the planet carrier body after receiving external power, so that the planet carrier body drives the fixed ring to synchronously rotate, and the fixed ring is in spline connection with the transmission piece, so that the fixed ring drives the transmission piece to synchronously rotate. The front side of boss butt mounting on the planet carrier body, the trailing flank of clutch hub butt planet carrier body for the planet carrier body is in the motion in-process, and boss and clutch hub provide axial support for the planet carrier body, thereby spacing the removal of planet carrier body on the axis, in order to promote the stability of derailleur, prolonged the life of derailleur.

Drawings

FIG. 1 is a schematic power transmission diagram of a planet carrier assembly of the present utility model.

Fig. 2 is a cross-sectional view of an embodiment of the planet carrier assembly member of the present utility model.

Fig. 3 is a schematic view of the structure of a planet carrier body of an embodiment of the planet carrier assembly member of the present utility model.

Fig. 4 is a schematic view of the structure of fig. 3 from another perspective.

Fig. 5 is a schematic view of a structure of a planet carrier assembly according to an embodiment of the present utility model after the planet carrier body is engaged with an oil collecting ring.

Fig. 6 is a schematic view of the structure of fig. 5 at another angle.

Fig. 7 is a schematic view of the structure of an oil collecting ring according to an embodiment of the carrier assembly of the present utility model.

Fig. 8 is a schematic view of the structure of fig. 7 at another angle.

The reference numerals are explained as follows:

100. a planet carrier body; 101. a connecting block; 110. a sun hole; 120. a planetary hole; 121. a limit groove; 130. a clamping hole; 140. an accommodating space; 210. a sun gear; 220. a planetary shaft; 221. an oil inlet; 230. a planet wheel; 240. a fixing ring; 241. a spline; 300. a boss; 400. a transmission member; 500. oil collecting ring; 510. a nipple; 520. a hook; 530. a lubrication groove; 600. an active member.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The utility model provides a planet carrier assembly which is arranged in a gearbox and is used for realizing speed change of the gearbox. One end of the planet carrier assembly is abutted against a clutch hub (not shown in the figure), and the clutch hub plays a role in axially supporting the planet carrier assembly; the other end of the planet carrier component is in transmission connection with the transmission piece. The planet carrier assembly is in driving connection with a driving member, which provides a rotational force for the planet carrier assembly. When the planet carrier assembly receives power to rotate, the planet carrier assembly drives the transmission member to rotate and transmits the power to the transmission member so as to adjust the output rotating speed of the gearbox.

FIG. 1 is a schematic power transmission diagram of a planet carrier assembly of the present utility model.

Referring to fig. 1, with reference to the state of the carrier assembly in use, in the axial direction of the carrier assembly, the direction of the transmission member relative to the carrier assembly is hereinafter referred to as the forward direction, and the direction away from the forward direction is hereinafter referred to as the rearward direction.

The planet carrier assembly member includes a planet carrier body 100, a retaining ring 240 and an oil collection ring 500. The sun gear 210, the planet shaft 220, and the planet gears 230 can be placed in the carrier body 100. The carrier body 100 is rotatable about a rotation axis extending in the front-rear direction, and a front side wall and a rear side wall of the carrier body 100 are disposed at intervals to form a receiving space 140.

The fixed ring 240 is disposed at the front end of the planet carrier body 100, and the center of the fixed ring 240 is the rotation axis of the planet carrier body 100; the fixed ring 240 is in transmission connection with the transmission member 400, and when the fixed ring 240 rotates synchronously with the planet carrier body 100, the fixed ring 240 drives the transmission member 400 to rotate so as to adjust the rotation speed.

The sun gear 210 is accommodated in the accommodating space 140, and the sun gear 210 extends along an axis in the front-rear direction.

The planet shaft 220 passes through the accommodating space 140 along the front-rear direction, the planet shaft 220 extends along the front-rear direction, and the planet shaft 220 is fixedly arranged on the planet carrier body 100. The planet wheel 230 is rotatably sleeved on the planet shaft 220, the planet wheel 230 is meshed with the sun wheel 210, and one side of the planet wheel 230 away from the sun wheel 210 is meshed with the driving member 600, so that the planet wheel 230 can rotate around the axis of the sun wheel 210 to drive the planet carrier body 100 to rotate around the axis of the sun wheel 210 through the planet shaft 220.

The oil collecting ring 500 is located between the planet carrier body 100 and the clutch hub, the oil collecting ring 500 is in clamping connection with the planet carrier body 100, and the oil collecting ring 500 provides lubricating oil for parts in the planet carrier body 100.

Fig. 2 is a cross-sectional view of an embodiment of the planet carrier assembly member of the present utility model. Fig. 3 is a schematic view of the structure of a planet carrier body of an embodiment of the planet carrier assembly member of the present utility model. Fig. 4 is a schematic view of the structure of fig. 3 from another perspective.

Referring to fig. 1, 2, 3 and 4, in the present embodiment, the carrier body 100 is rotatable about a rotation axis in the front-rear direction; a fixing ring 240 protruding forward is fixedly arranged on the front side of the planet carrier body 100, and the circle center of the fixing ring 240 is the rotation axis of the planet carrier body 100; the transmission piece 400 is sleeved on the fixed ring 240, and the transmission piece 400 is in transmission connection with the fixed ring 240; the rear side of the carrier body 100 abuts the clutch hub.

The front and rear sidewalls of the planet carrier body 100 are spaced apart to form a receiving space 140, and the receiving space 140 extends in the front-rear direction. The connecting block 101 is formed by protruding backward from the circumferential side of the front side wall of the planet carrier body 100, and the connecting block 101 of the front side wall of the planet carrier body 100 is fixedly connected with the rear side wall, so that the structural strength of the planet carrier body is enhanced, the connecting block 101 staggers the planet gears 230, and the rotation of the planet gears 230 is not influenced. The accommodating space 140 accommodates the sun gear 210, the planet shaft 220 and the planet gears 230, so as to reduce the volume of the planet carrier assembly and improve the integration level of the planet carrier assembly.

In some embodiments, the connection block 101 is disposed on the rear side of the front side wall of the planet carrier body 100, the connection block 101 protrudes backward to connect the rear side wall of the planet carrier body 100, and the connection block 101 does not contact with the sun gear 210 and the planet gears 230, so as not to affect the rotation of the sun gear 210 and the planet gears 230. In the present embodiment, the front side wall and the rear side wall of the carrier body 100 are welded.

Referring to fig. 1, 2 and 3, in the present embodiment, a front side of the planet carrier body 100 is fixedly provided with a fixing ring 240 protruding forward, and a center of the fixing ring 240 is a rotation axis of the planet carrier body 100; the transmission member 400 is sleeved on the fixed ring 240, and the transmission member 400 is in transmission connection with the fixed ring 240.

The fixing ring 240 is ring-shaped, and the fixing ring 240 extends forward. The rear side of the fixing ring 240 is fixedly connected with the planet carrier body 100, and the rotation axis of the fixing ring 240 coincides with the rotation axis of the planet carrier body 100, so that the fixing ring 240 follows the planet carrier body 100 to rotate synchronously around the rotation axis of the planet carrier body 100.

The outer circumference of the fixed ring 240 is provided with a spline 241 extending in the front-rear direction, and the transmission member 400 is sleeved on the fixed ring 240. The fixed ring 240 is fixedly connected with the transmission member 400 through a spline 241 so that the transmission member 400 and the fixed ring 240 are coaxially rotated. When the planet carrier body 100 drives the fixed ring 240 to rotate, the fixed ring 240 transmits kinetic energy to the transmission member 400 through the spline 241, so that the transmission member 400 coaxially rotates with the planet carrier body 100.

In some embodiments, the retaining ring 240 is welded to the planet carrier body 100 to secure the retaining ring 240 to the planet carrier body 100.

Referring to fig. 1, 2 and 3, in the present embodiment, the front side of the planet carrier body 100 is further provided with a plurality of bosses 300, and the plurality of bosses 300 are spaced along the outer circumference of the fixing ring 240. The forward side of the boss 300 abuts the rear side of the driver 400 and provides axial support for the planet carrier assembly. The boss 300 and clutch hub both provide axial support for the planet carrier assembly to limit the position of the planet carrier assembly in the direction of extension of its axis of rotation, improving the structural stability of the planet carrier body.

The bosses 300 are uniformly spaced from the outer periphery of the fixed ring 240, and the distances from the bosses 300 to the rotation axis of the fixed ring 240 are equal, so that when the bosses 300 abut against the transmission member 400, the bosses 300 and the transmission member 400 are uniformly stressed.

The front end surface of the boss 300 is further provided with an annular washer coaxial with the fixing ring 240. The front side of the ring gasket abuts against the rear side of the transmission piece 400, and the rear side of the ring gasket abuts against the front side of the boss 300, so that buffering is provided when the boss 300 abuts against the transmission piece 400, the planet carrier assembly is protected, and the service life of the planet carrier assembly is prolonged. In some embodiments, the circumferential side of the front end of the boss 300 is chamfered to protect the annular gasket and the transmission 400.

Fig. 5 is a schematic view of a structure of a planet carrier assembly according to an embodiment of the present utility model after the planet carrier body is engaged with an oil collecting ring.

Referring to fig. 2, 3, 4 and 5, in the present embodiment, a sun hole 110, a planet hole 120 and an engagement hole 130 extending in the front-rear direction are formed in the planet carrier body 100. The sun hole 110 passes through the front side wall and the rear side wall of the planet carrier body 100. The sun hole 110 extends rearward to pass through the oil collecting ring 500. The solar hole 110 communicates with the receiving space 140. Portions of the sun gear 210 pass through the sun hole 110 in the front-rear direction to be connected with external parts. The axis of the sun hole 110, the axis of the sun gear 210, and the rotation axis of the carrier body 100 overlap. The sun hole 110 is located within a projection range of the fixing ring 240 in the front-rear direction.

Referring to fig. 2, 3 and 4, the planetary holes 120 pass through the front and rear sidewalls of the planet carrier body 100 in the front-rear direction. The planetary hole 120 accommodates the planetary shaft 220 to restrict the planetary shaft 220 to the carrier body 100 in a direction perpendicular to an axis of the planetary shaft 220 such that the planetary shaft 220 rotates in synchronization with the carrier body 100. In some embodiments, the planet apertures 120 are a plurality.

The planet carrier body 100 is provided with a limiting groove 121, the limiting groove 121 is positioned on the inner peripheral walls of the front end and the rear end of the planet hole 120, and the limiting groove 121 is clamped with a part of the planet shaft 220 to limit the rotation of the planet shaft 220 around the axis of the planet shaft 220. In some embodiments, the plurality of limiting grooves 121 is a plurality of the clamping holes 121 are spaced around the periphery of the planet axle 220. In other embodiments, grooves 121 are now located on the front and rear sides of the planet carrier body 110.

Referring to fig. 2, 3, 4 and 5, the engagement hole 130 is used for connecting the oil collecting ring 500, and the oil collecting ring 500 is engaged with and connected to the planet carrier body 100. In some embodiments, the number of the engaging holes 130 is plural.

Referring to fig. 1, 2 and 3, in the present embodiment, a sun gear 210 is accommodated in the accommodating space 140, the sun gear 210 extends along the front-rear direction, and the sun gear 210 is connected with other parts in the transmission through a sun hole 110. The sun gear 240 is stationary relative to the carrier body 100, the axis of the sun gear 240 is coaxial with the axis of rotation of the carrier body 100, and the outer periphery of the sun gear 210 meshes with the outer periphery of the planet gears 230. When the planet wheel 230 rotates, the planet wheel 230 rotates around the axis of the sun wheel 240 relative to the sun wheel 240, so that the planet wheel 230 drives the planet carrier body 100 to rotate around the sun wheel 240.

In the present embodiment, the planetary shaft 220 passes through the accommodating space 140, and the planetary shaft 220 is accommodated in the planetary hole 120 to limit the movement of the planetary shaft 220 in the direction perpendicular to the axis of the planetary shaft 220. The two ends of the planetary shaft 220 protrude from the limiting groove 121, and the clamping blocks are clamped in the limiting groove 121 to limit the movement of the planetary shaft 220 in the axial direction of the planetary shaft 22. The planet 230 is rotatable about the planet axle 220. In some embodiments, the planet axle 220 corresponds to a plurality of planet apertures 120.

In this embodiment, the rear end of the planet shaft 220 passes through the rear side wall of the planet carrier body 100, and the rear side wall of the planet shaft 220 is provided with an oil inlet 221, and the oil inlet 221 is communicated with the oil collecting ring 500, so that the lubricating oil in the oil collecting ring 500 enters the planet shaft 220 through the oil inlet 221. The circumference of the planetary shaft 220 is further provided with an oil through hole, which extends along the radial direction of the planetary shaft 220 to communicate the oil inlet and the outside of the planetary shaft 220, so that the lubricating oil in the oil collecting ring 500 enters the gap between the planetary shaft 220 and the planetary gear 230 after passing through the oil inlet 221 and the oil through hole, and flows to the sun gear 210, thereby lubricating the planetary shaft 220, the planetary gear 230 and the sun gear 210.

Referring to fig. 1, 2, 3 and 4, in the present embodiment, the planet wheel 230 is rotatably sleeved on the planet shaft 220, and the outer periphery of the planet wheel 230 is meshed with the outer periphery of the sun gear 210. The outer periphery of the planet 230 engages the driving member 600 on the side facing away from the sun gear 210, the driving member 600 powering the planet 230. The driving member 600 drives the planet gears 230 to rotate, when the planet gears 230 rotate, the planet gears 230 rotate around the axis of the planet axle 220, and the planet carrier body 100 is driven by the planet carrier 220 to rotate around the axis of the sun gear 210, so that the rotation speed of the driving member 600 is reduced.

In some embodiments, needle bearings are provided between the planet 230 and the planet shaft 220 to facilitate rotation of the planet 230 about the planet shaft 220. In other embodiments, shims are provided on both the front and rear sides of the planets 230 to facilitate rotation of the planets 230. The lubricating oil from the oil through hole enters the needle bearing and the gasket, so that the friction force of the planet wheel 230 during rotation is further reduced, the friction loss of the planet carrier assembly during rotation is reduced, and the service life of the planet carrier assembly is prolonged. In other embodiments, the spacer is a thrust ball bearing.

Fig. 6 is a schematic view of another angle of the structure shown in fig. 5. Fig. 7 is a schematic view of the structure of an oil collecting ring according to an embodiment of the carrier assembly of the present utility model. Fig. 8 is a schematic view of the structure of fig. 7 at another angle.

Referring to fig. 5, 6, 7 and 8, in the present embodiment, the oil collecting ring 500 is disposed between the planet carrier body 100 and the clutch hub, the oil collecting ring 500 is engaged with the planet carrier body 100, and the oil collecting ring 500 is coaxial with the fixing ring 240, so that the oil collecting ring 500 rotates along with the planet carrier body 100, and lubricating oil in the oil collecting ring 500 is convenient to enter the planet shaft 220.

Referring to fig. 5 and 7, the front side of the oil collecting ring 500 protrudes from the engaging hole 130 to form a hook 520, the hook 520 engages with the engaging hole 130, and the hook 520 is engaged with the rear side of the planet carrier body 100. The front side of the oil collecting ring 500 abuts against the rear side of the planet carrier body 100 to clamp and fix the oil collecting ring 500 on the planet carrier body 100, so that the oil collecting ring 500 rotates synchronously with the planet carrier body 100. In some embodiments, the number of the hooks 520 is plural with respect to the plurality of the engaging holes 130, the plurality of hooks 520 are uniformly arranged on the front side surface of the oil collecting ring 500 in a ring shape, and the distances from the plurality of hooks 520 to the oil collecting ring 500 are equal. In some embodiments, the oil collection ring 500 is riveted or screwed to the planet carrier body 100.

The front side of the oil collecting ring 500 is further provided with a nipple 510, and the nipple 510 extends into the oil inlet 221 at the rear end of the planetary shaft 220, so as to provide lubricating oil in the oil collecting ring 500 to the planetary shaft 220, the planetary gears 230 and the sun gear 210. The number of oil nozzles 510 is set corresponding to the number of planetary shafts 220 so as to sufficiently lubricate the carrier assembly.

An oil path is further arranged in the oil collecting ring 500, the oil path extends along the axial direction of the oil collecting ring 500, and one end of the oil path, which is away from the center of the oil collecting ring 500, is communicated to the oil nozzle 510. When the oil collecting ring 500 rotates along with the planet carrier body 100, with the increase of the rotation speed, the lubricating oil in the oil collecting ring 500 is accelerated under the action of centrifugal force and is input into the planet shaft 220 through the oil duct and the oil nozzle 510, so as to fully lubricate the planet shaft 220, the planet gears 230 and the sun gear 210.

Referring to fig. 1, 2, 6 and 8, the rear end surface of the oil collecting ring 500 abuts against the clutch hub to limit the positions of the oil collecting ring 500 and the carrier body 100 in the axial direction. The lubrication groove 530 is provided on the rear surface of the oil collecting ring 500, the lubrication groove 530 extends along the radial direction of the oil collecting ring 500, one end of the lubrication groove 530 near the center of the oil collecting ring 500 is communicated with an oil path, so that when the oil collecting ring 500 rotates along with the planet carrier body 100, the lubrication oil in the oil path enters the lubrication groove 530 under the action of centrifugal force, thereby lubricating the rear side surface of the oil collecting ring 500 and the clutch hub, reducing friction force between the oil collecting ring 500 and the clutch hub, reducing friction loss of the oil collecting ring 500, and prolonging the service life of the planet carrier assembly. In some embodiments, the width of the lubrication groove 530 is gradually reduced in a back-to-front direction to form a V-groove, facilitating the diffusion of the lubrication oil, thereby sufficiently lubricating the oil collection ring 500 and the clutch hub.

Referring to fig. 1 to 8, in the present utility model, a clutch hub abuts against a rear sidewall of a oil collecting ring 500, a fixing ring 240 is engaged with a transmission 400, a boss 300 abuts against the rear sidewall of the transmission 400, and the clutch hub and the transmission 400 limit movement of a carrier assembly on an axis in a front-rear direction. The boss 300 and clutch hub provide axial support for the planet carrier assembly, thereby limiting movement of the planet carrier assembly on the axis to promote stability of the transmission and extend the service life of the transmission.

The driving member 600 rotates, thereby rotating the planetary gears 230, and the planetary gears 230 perform self-transmission around the planetary shaft 220; the planet gears 230 also revolve around the sun gear 210 about the axis of the sun gear 210. When the planet gears 230 revolve, the planet shafts 220 are driven to revolve around the axis of the sun gear 210, so that the planet carrier body 100 is driven to rotate around the axis of the sun gear 210. The planet carrier body 100 drives the transmission member 400 to rotate through the fixing ring 240, so that the output rotation speed of the transmission is adjusted, and the running speed of the automobile is adjusted.

In the present utility model, a carrier assembly is assembled to form a transmission, the carrier assembly being used to regulate the rotational speed of the transmission. After receiving external power, the planet carrier body 100 rotates around the axis of the planet carrier body 100, so that the planet carrier body 100 drives the fixed ring 240 to rotate synchronously, the fixed ring 240 is in spline connection with the transmission piece 400, and the fixed ring 240 drives the transmission piece 400 to rotate synchronously. The front side of boss 300 butt transmission 400 on the planet carrier body 100, clutch hub butt planet carrier body 100's trailing flank for planet carrier body 100 is in the motion in-process, and boss 300 and clutch hub provide axial support for planet carrier body 100, and the removal of spacing planet carrier body 100 on the axis in order to promote the stability of derailleur, prolonged the life of derailleur.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A planet carrier assembly member positioned on a rear side of a transmission member and a front side of a clutch hub, comprising:

a carrier body rotatable about a rotation axis in a front-rear direction; a fixed ring protruding forwards is fixedly arranged on the front side of the planet carrier body, and the circle center of the fixed ring is the rotation axis of the planet carrier body; the fixed ring can be in transmission connection with the transmission piece sleeved on the fixed ring, so that the fixed ring can transmit power to the transmission piece; the rear side surface of the planet carrier body is abutted against the clutch hub;

a plurality of bosses arranged on the front side surface of the planet carrier body, the bosses being arranged at intervals along the outer peripheral side of the fixing ring; the front side of the boss abuts against the rear side of the transmission piece.

2. The planet carrier assembly member according to claim 1, wherein the outer periphery of the stationary ring is provided with a spline protruding in the front-rear direction, and the stationary ring is in driving connection with the transmission member via the spline.

3. The planet carrier assembly of claim 1, wherein a front side of the boss is provided with an annular washer, the annular washer being coaxial with the stationary ring; the front side of the annular gasket abuts against the rear side of the transmission piece.

4. The planet carrier assembly according to claim 1, wherein a plurality of planet holes are formed in the planet carrier body, the planet holes are arranged at intervals along the periphery of the planet carrier body, the planet holes penetrate through the planet carrier body in the front-rear direction, and the planet carrier body accommodates the planet wheels at the planet holes; the planet carrier assembly further comprises an oil collecting ring, the oil collecting ring is connected with the rear side wall of the planet carrier body in a clamping mode, and the part of the oil collecting ring stretches into the planet hole.

5. The planet carrier assembly of claim 4, wherein the rear side wall of the planet carrier body is provided with a clamping hole, and the front side wall of the oil collecting ring is provided with a clamping hook in a protruding mode.

6. The planet carrier assembly of claim 4, wherein the oil collection ring is coaxial with the stationary ring; the front side surface of the oil collecting ring is convexly provided with an oil nozzle, and the oil nozzle extends into the planet hole on the rear side wall of the planet carrier body.

7. The planet carrier assembly of claim 6, wherein an oil passage is provided in the oil collection ring, the oil passage being in communication with the nipple.

8. The planet carrier assembly of claim 7, wherein a rear sidewall of the oil collection ring is recessed with a lubrication groove extending radially of the oil collection ring, the lubrication groove being in communication with the oil passage.

9. The planet carrier assembly of claim 1, wherein the retaining ring is welded to a front side wall of the planet carrier body, the front side wall of the planet carrier body being welded to a rear side wall of the planet carrier body.

10. The planet carrier assembly of claim 1, wherein a chamfer is provided on a peripheral side of the front end of the boss.

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