CN211449599U

CN211449599U - Transmission and automobile

Info

Publication number: CN211449599U
Application number: CN201922335375.4U
Authority: CN
Inventors: 万全喜; 王光博; 伊宝民; 姜建辉
Original assignee: Shengrui Transmission Co Ltd
Current assignee: Shengrui Transmission Co Ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-09-08
Anticipated expiration: 2029-12-20

Abstract

The utility model provides a derailleur and car relates to car technical field, and the derailleur includes: the clutch comprises a shell, a first clutch and a sleeve body; the sleeve body is fixedly connected to the connecting part of the shell, a first annular groove, a second annular groove and a third annular groove are formed in the side wall of the sleeve body, the first annular groove and the second annular groove are located on two sides of the third annular groove, the first annular groove and the second annular groove are used for accommodating sealing rings, and the wear resistance of the sleeve body is higher than that of the shell; the sleeve body is provided with an oil guide through hole penetrating through the inner side wall and the outer side wall of the sleeve body, the oil guide through hole is aligned and communicated with the high-pressure oil outlet on the shell, and the oil guide through hole is communicated with the third annular groove; the first clutch is sleeved on the outer side of the circumferential direction of the sleeve body, and the third annular groove is aligned with the control oil port of the first clutch. And the wear resistance of the sleeve body is higher than that of the shell, and when the sealing ring rotates along with the first clutch, the sealing ring is not easy to wear the sleeve body.

Description

Transmission and automobile

Technical Field

The utility model belongs to the technical field of the car technique and specifically relates to a derailleur and car are related to.

Background

The transmission is one of the basic elements of an automobile, application No. 2019101661593, entitled multi-speed transmission. The multi-stage transmission comprises a first planet row assembly, a second planet row assembly, a third planet row assembly and a fourth planet row assembly, as shown in fig. 1, a first clutch 610 is used for connecting and disconnecting power flow between a first planet carrier of the first planet row assembly 510 and a second ring gear of the second planet row assembly 520, when the first clutch 610 is closed, the power of the first planet carrier can be transmitted to the second ring gear, and conversely, when the first clutch 610 is disconnected, the power of the first planet carrier cannot be transmitted to the second ring gear.

As shown in fig. 2, the conventional transmission includes a housing, a cylindrical connecting portion 100 is disposed on the housing, the first clutch is sleeved on the connecting portion 100, a high-pressure oil passage is disposed in the connecting portion 100, the high-pressure oil passage includes a first passage 110 along an axial direction and a second passage 120 along a radial direction, an oil outlet is disposed on an outer wall of the connecting portion 100, and when a control oil port of the first clutch is aligned with the oil outlet, high-pressure oil enters a control oil cavity of the first clutch to push a piston. Two annular grooves are formed in the connecting portion 100 and used for accommodating the sealing rings 200, and the two sealing rings 200 are located on two axial sides of the oil outlet and used for reducing outward leakage of hydraulic oil.

When the inner hub of first clutch rotates, can take sealing washer 200 to rotate together, can wear and tear the bottom surface of annular groove on connecting portion 100 when sealing washer 200 rotates, because the casing is integrated into one piece, and the material is the aluminum product, and the hardness is low, and is not wear-resisting, and long-term wearing and tearing can lead to the problem of hydraulic oil leakage from the casing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a derailleur and car to in having alleviated current derailleur, when first clutch was connected with the casing, the casing was worn and torn easily to the sealing washer of the control oil mouth department of first clutch, leads to oil leak technical problem.

In a first aspect, an embodiment of the present invention provides a transmission, including: the clutch comprises a shell, a first clutch and a sleeve body;

the sleeve body is fixedly connected to the connecting part of the shell, a first annular groove, a second annular groove and a third annular groove are formed in the side wall of the sleeve body, the first annular groove and the second annular groove are located on two sides of the third annular groove, the first annular groove and the second annular groove are used for accommodating sealing rings, and the wear resistance of the sleeve body is higher than that of the shell;

the sleeve body is provided with an oil guide through hole penetrating through the inner side wall and the outer side wall of the sleeve body, the oil guide through hole is communicated with the high-pressure oil outlet on the shell in an aligned mode, and the oil guide through hole is communicated with the third annular groove;

the first clutch is sleeved on the circumferential outer side of the sleeve body, and the third annular groove is aligned with the control oil port of the first clutch.

Furthermore, the number of the first annular groove and the second annular groove is one.

Further, the cross sections of the first annular groove and the second annular groove are both rectangular.

Further, the shell is made of aluminum materials, and the sleeve body is made of steel materials.

Further, the sleeve body is in interference fit with the connecting part.

Furthermore, the derailleur includes the sealing washer, the sealing washer cup joints in first annular groove and the second annular groove of the cover body, just the sealing washer is the rectangle sealing washer.

Furthermore, a high-pressure oil way is arranged on the connecting portion, an oil outlet aligned with the oil guide through hole is formed in the high-pressure oil way, the high-pressure oil way is arranged along the axial direction of the input rotating shaft, and the oil outlet is located on the side wall of the high-pressure oil way.

Further, the size of the oil outlet is larger than that of the oil guide through hole.

In a second aspect, an embodiment of the present invention provides an automobile, including the above transmission.

The embodiment of the utility model provides a derailleur, include: the clutch comprises a shell, a first clutch and a sleeve body; the cover body is used for being sleeved between the shell and the first clutch, a first annular groove, a second annular groove and a third annular groove are arranged on the side wall of the cover body, the first annular groove and the second annular groove are located on two sides of the third annular groove, the first annular groove and the second annular groove are used for accommodating the sealing ring, the wear resistance of the cover body is higher than that of the shell, and when the sealing ring rotates, the cover body is not easy to wear by the sealing ring compared with the shell. The sleeve body is provided with an oil guide through hole penetrating through the inner side wall and the outer side wall of the sleeve body, the oil guide through hole is communicated with a high-pressure oil outlet in an aligning mode on the shell, the oil guide through hole is communicated with a third annular groove, the third annular groove is aligned with a control oil port of the first clutch, high-pressure oil flowing out of the high-pressure oil outlet firstly enters the oil guide through hole, then the third annular groove is filled with the high-pressure oil, and finally the high-pressure oil enters a control oil cavity of the first clutch. Because the wearability of the cover body is good, so when the sealing washer rotated along with first clutch, the cover body was difficult to by wearing and tearing, compares in prior art sealing washer direct cup joint on connecting portion, adopts the cover body to be connected with connecting portion, then cup joints the sealing washer on the cover body, can solve the problem of casing wearing and tearing oil leak.

An embodiment of the utility model provides a pair of car, including foretell derailleur. Because the embodiment of the utility model provides an automobile has quoted foretell derailleur, so, the embodiment of the utility model provides an automobile also possesses the advantage of derailleur.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a transmission of the prior art;

FIG. 2 is a partial cross-sectional view of the first planetary row assembly and the first clutch of FIG. 1;

FIG. 3 is a partial cross-sectional view of a first planetary gearset assembly and a first clutch of the transmission provided by an embodiment of the present invention;

fig. 4 is a schematic view of a sleeve body of a transmission according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

fig. 6 is a schematic diagram of a transmission according to an embodiment of the present invention.

Icon: 100-a connecting part; 110 — a first channel; 120-a second channel; 200-sealing ring; 400-the sleeve body; 410-a first annular groove; 420-a second annular groove; 430-third annular groove; 440-oil guiding through holes; 510-a first planet bar assembly; 520-a second planet row assembly; 530-third planet bar assembly; 540-fourth planet row assembly; 610-a first clutch; 620-second clutch; 630-a third clutch; 640-a fourth clutch; 710-an input shaft; 720-output shaft; 730-brake.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 3-5, the embodiment of the present invention provides a transmission, including: the clutch comprises a shell, a first clutch and a sleeve body; the cover body 400 is sleeved between the connecting part 100 of the shell and the first clutch 610, a first annular groove 410, a second annular groove 420 and a third annular groove 430 are arranged on the side wall of the cover body 400, the first annular groove 410 and the second annular groove 420 are located on two sides of the third annular groove 430, the first annular groove 410 and the second annular groove 420 are used for accommodating the sealing ring 200, the wear resistance of the cover body is higher than that of the shell, and the cover body is more difficult to wear by the sealing ring compared with the shell when the sealing ring 200 rotates. The cover body 400 is provided with an oil guide through hole 440 communicating the inner side wall and the outer side wall of the cover body, the inner side wall of the cover body is tightly attached to the connecting portion, the oil guide through hole 440 is aligned with and communicated with a high-pressure oil outlet on the shell, the oil guide through hole 440 is communicated with the third annular groove 430, the third annular groove 430 is used for being aligned with a control oil port of the first clutch 610, high-pressure oil flowing out from the high-pressure oil outlet firstly enters the oil guide through hole 440, then is full of the third annular groove 430, and finally enters the control oil cavity of the first clutch. Because the sleeve 400 has good wear resistance, when the seal ring 200 rotates along with the first clutch, the sleeve is not easy to wear, the sleeve is connected with the connecting part, and then the seal ring is sleeved on the sleeve, so that the problem of oil leakage caused by wear of the shell can be solved.

In this embodiment, the number of the first annular groove 410 and the second annular groove 420 is one, the first annular groove 410 and the second annular groove 420 are symmetrically disposed on two sides of the third annular groove 430, and the shapes of the first annular groove 410 and the second annular groove 420 are the same.

The number of the first annular groove 410 and the second annular groove 420 may also be plural, depending on the number of the seal rings 200 between the housing and the first clutch in the transmission.

The cross-sections of the first and second

annular grooves

410 and 420 are both rectangular in shape. When the first clutch rotates at a high speed, the rectangular sealing ring 200 needs to be matched, so that the cross sections of the first annular groove 410 and the second annular groove 420 are rectangular, and the first annular groove and the second annular groove are better matched with the rectangular sealing ring 200.

The material of casing is the aluminum product, and the material of transmission casing among the prior art is mostly the aluminum product. The sleeve body 400 is made of steel. The sleeve body 400 is an independent workpiece and can be made of steel, and the sleeve body 400 can be subjected to surface smoothing treatment and hardness enhancing heat treatment. The shell is made of aluminum, the hardness of the steel is higher than that of the aluminum, the wear resistance of the sleeve body is better, and the density of the steel is greater than that of the aluminum. In the prior art, as shown in fig. 2, an annular groove is formed by recessing the housing itself to accommodate the sealing ring, and at this position, the wall thickness between the bottom surface of the annular groove and the first channel 110 is thin, the density of aluminum material is low, and the problem of oil leakage is easily caused. The embodiment of the utility model provides a cover body 400 has replaced the structure of A position department in fig. 2, and the material of cover body 400 is steel, and density is high, and intensity is big, and is stand wear and tear, is difficult to produce the oil impregnate phenomenon.

As can be seen from comparing fig. 2 and fig. 3, the transmission provided in the embodiment of the present invention changes the shape of the original connecting portion 100, and the sleeve 400 is sleeved on the connecting portion 100, and the sealing ring 200 is rotatably connected with the sleeve 400, so that on one hand, the sleeve has better wear resistance and is not easily worn; on the other hand, the original annular groove structure on the connecting part 100 is removed, and the problem that the high-pressure oil in the first channel 100 seeps out from the bottom surface of the annular groove from inside to outside is avoided.

The sleeve 400 is fixedly sleeved on the connecting portion 100, and may be connected in an interference fit manner, or may be connected in other manners, such as pin connection, key connection, and the like.

The transmission comprises a sealing ring 200, the sealing ring 200 is sleeved in a first annular groove 410 and a second annular groove 420 of the sleeve body 400, and the sealing ring 200 is a rectangular sealing ring 200. The rectangular sealing ring 200 is suitable for the sealing condition of high-speed rotation, can reduce the leakage of high-pressure oil, and has good sealing effect.

The connecting portion 100 is provided with a high-pressure oil path, the high-pressure oil path is provided with an oil outlet aligned with the oil guide through hole 440, the high-pressure oil path is arranged along the axial direction of the input rotating shaft 710, and the oil outlet is located on the side wall of the high-pressure oil path. Because the transmission housing is made of aluminum material, as shown in fig. 2, the hydraulic oil channel in the prior art includes a first channel 110 extending axially along the input rotating shaft 710, and a second channel 120 having one end communicating with the first channel 110 and the other end serving as an oil outlet, the annular groove is disposed at an outer side of the first channel and is recessed inward, so that a wall thickness between a bottom surface of the annular groove and the first channel 110 is relatively thin, the housing is made of aluminum material, the density is low, and high-pressure oil in the first channel 110 easily leaks from the bottom surface of the annular groove. The embodiment of the utility model provides a derailleur utilizes the wear resistance high, and the cover body that density is big has replaced original structure, can alleviate the problem of oil impregnate.

The size of the oil outlet is larger than that of the oil guide through hole 440, and the oil guide through hole 440 is conveniently aligned with the oil outlet when being installed.

As shown in fig. 6, the transmission provided by the embodiment of the present invention further includes a housing, an input rotating shaft 710, an output rotating shaft 720, and a third planetary row assembly 530, a brake 730, a second clutch 620, a third clutch 630, and a fourth clutch 640 disposed in the case. And the stopper 730 is fixedly installed on the inner wall of the case. The third planet bar assembly 530 includes a third sun gear, a third planet carrier, and a third ring gear; the fourth planet carrier assembly 540 comprises a fourth sun gear, a fourth planet carrier and a fourth ring gear; the second planet carrier assembly 520 includes a second sun gear, a second planet carrier, and a second ring gear. The input rotating shaft 710 is respectively connected with the third planet carrier and the fourth clutch; the brake 730 is connected with the third sun gear; the third ring gear is connected with the second clutch 620; one end of the fourth planet carrier is provided with the third clutch 630; the fourth gear ring is connected with the fourth clutch; the second carrier is connected with the third clutch 630; the second planet carrier is connected with the output rotating shaft 720; the second ring gear is connected with the first clutch 610; the input rotating shaft 710 and the output rotating shaft 720 are coaxially arranged, and the first planet row assembly 510 comprises a first sun gear, a first planet carrier and a first gear ring; the first planet carrier is connected with the first clutch 610, and the first gear ring is fixedly connected with the inner wall of the box body.

The embodiment of the utility model provides a car because the utility model provides a car has quoted foretell derailleur, so, the embodiment of the utility model provides a car also possesses the advantage of above-mentioned derailleur.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A transmission, comprising: a housing, a first clutch (610), and a sleeve (400);

the sleeve body (400) is fixedly connected to the connecting part (100) of the shell, a first annular groove (410), a second annular groove (420) and a third annular groove (430) are formed in the side wall of the sleeve body (400), the first annular groove (410) and the second annular groove (420) are located on two sides of the third annular groove (430), the first annular groove (410) and the second annular groove (420) are used for accommodating a sealing ring (200), and the wear resistance of the sleeve body (400) is higher than that of the shell;

the sleeve body (400) is provided with an oil guide through hole (440) communicating the inner side wall and the outer side wall of the sleeve body, the oil guide through hole (440) is communicated with a high-pressure oil outlet on the shell in an aligning manner, and the oil guide through hole (440) is communicated with the third annular groove (430);

the first clutch (610) is sleeved on the outer side of the circumferential direction of the sleeve body (400), and the third annular groove (430) is aligned to a control oil port of the first clutch.

2. The transmission of claim 1, wherein the first and second annular grooves (410, 420) are each one in number.

3. The transmission of claim 1, wherein the first and second annular grooves (410, 420) are each rectangular in cross-sectional shape.

4. The transmission of claim 1, wherein the housing is made of aluminum and the sleeve (400) is made of steel.

5. The transmission according to claim 1, characterized in that the jacket body (400) has an interference fit with the connection portion (100).

6. The transmission according to claim 5, characterized in that it comprises a sealing ring (200), said sealing ring (200) being sleeved in a first annular groove (410) and a second annular groove (420) of said sleeve body (400), and said sealing ring (200) being a rectangular sealing ring (200).

7. The transmission of claim 1, characterized in that a high-pressure oil path is arranged on the connecting portion (100), an oil outlet aligned with the oil guide through hole (440) is arranged on the high-pressure oil path, the high-pressure oil path is arranged along the axial direction of the input rotating shaft (710), and the oil outlet is positioned on the side wall of the high-pressure oil path.

8. The transmission of claim 1, wherein the oil outlet has a size greater than a size of the oil conducting through hole (440).

9. A motor vehicle comprising a transmission according to any one of claims 1 to 8.