KR101745164B1 - Auto transmission case - Google Patents

Auto transmission case Download PDF

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Publication number
KR101745164B1
KR101745164B1 KR1020150152296A KR20150152296A KR101745164B1 KR 101745164 B1 KR101745164 B1 KR 101745164B1 KR 1020150152296 A KR1020150152296 A KR 1020150152296A KR 20150152296 A KR20150152296 A KR 20150152296A KR 101745164 B1 KR101745164 B1 KR 101745164B1
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KR
South Korea
Prior art keywords
automatic transmission
transmission case
support bracket
thrust needle
needle bearing
Prior art date
Application number
KR1020150152296A
Other languages
Korean (ko)
Other versions
KR20170050569A (en
Inventor
박용채
Original Assignee
(주)씨앤포스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)씨앤포스 filed Critical (주)씨앤포스
Priority to KR1020150152296A priority Critical patent/KR101745164B1/en
Publication of KR20170050569A publication Critical patent/KR20170050569A/en
Application granted granted Critical
Publication of KR101745164B1 publication Critical patent/KR101745164B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/40—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings with loose spacing bodies between the rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/44—Needle bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H57/022—Adjustment of gear shafts or bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/032—Gearboxes; Mounting gearing therein characterised by the materials used

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The present invention is characterized in that a support bracket for rotatably supporting an overdrive shaft by a roller bearing is detachably installed in an automatic transmission case, and a thrust needle bearing is inserted into the support bracket to be in contact with a clutch housing mounted on an end of an overdrive shaft So that the automatic transmission case can be continuously reused by replacing only the support bracket. In addition, even when the overdrive shaft is subjected to the force in its longitudinal direction, the force is dispersed through the roller bearings and thrust needle bearings, The case is not broken or broken, so that the life can be extended and used.
Particularly, the present invention allows the support bracket to be inserted into the automatic transmission case to be easily removed and replaced, and the thrust needle bearing can be fitted and fixed to the support bracket, so that the structure is simple and easy So that it is possible to replace only the damaged part quickly and to easily maintain it.
Since the outer ring and the inner ring of the thrust needle bearing are fixed to the support bracket so that they are not rotated, even if the overdrive shaft rotates, the outer ring and the inner ring do not rotate together and the thrust needle bearing itself is worn, Thereby preventing the abrasion of the abrasive grains from being worn.

Description

{AUTO TRANSMISSION CASE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic transmission case, and more particularly, to an automatic transmission case, in which a support bracket is fitted to a seat formed in an automatic transmission case so as to support one side of an overdrive shaft by a needle bearing, The thrust needle bearing is mounted so as not to rotate so as to be rotatably supported in contact with the clutch housing so that the overdrive shaft disperses the force received in the longitudinal direction thereof through the needle needle bearing and the thrust needle bearing, Or breakage of the automatic transmission case is prevented, thereby increasing the durability of the automatic transmission case.

As shown in Fig. 1, the automatic transmission T is connected to the engine E and transmits the generated power to the wheels. In particular, the automatic transmission T refers to a transmission in which gears are automatically operated according to the changing vehicle speed. The automatic transmission (T) can be divided into a torque converter and a planetary gear, or a combination of a fluid clutch and a planetary gear.

Particularly, the automatic transmission is manufactured in various forms in consideration of problems that may occur due to high-speed rotation, for example, durability of the automatic transmission case or lubrication for smooth rotation of the shafts. Patent Literature 1 and Patent Literature 2 disclose techniques relating to such an automatic transmission case.

(Patent Document 1) Korean Patent No. 1302342 (Registered on March 31, 2013)

It is an object of the present invention to provide a case structure of a transmission which improves the rigidity of the case to improve the engagement ratio of the gears and reduces the sound of the case. The case is provided with a first bearing portion for supporting the first rotation shaft of the transmission mechanism and a second bearing portion for supporting the second rotation shaft of the transmission mechanism. And a reinforcement structure connecting the first through hole penetrating through the first through hole and the second through hole penetrating through the second rotation axis, and a reinforcement portion falling from the outer wall of the case and provided to face the outer wall. do.

(Patent Document 2) Korean Patent Laid-open No. 10-2015-0024740 (Publication Date: 2015.03.09)

An automatic transmission case having an automatic transmission case and an oil guide portion integrally formed to provide an oil guide portion capable of achieving an effect of reducing the number of operations and cost. For example, an automatic transmission case internally houses a gear train including a plurality of gears and a hollow hole for supplying oil to the gears, wherein the automatic transmission case includes: And an oil guide portion integrally formed with the automatic transmission case, wherein the oil guide portion is formed from the inside of the automatic transmission case and is connected to the hollow hole; An oil guide portion for guiding the oil through the oil guide hole; An oil guide connected to the oil guide portion to supply oil in the hollow hole direction; And a magnet for preventing impurities such as a metal chip from flowing into the hollow hole between the oil guide and the oil guide.

2, the automatic transmission case rotatably supports an overdrive shaft assembly which is connected to the engine and transmits power through a torque converter that receives the rotational force and drives the engine. In particular, the overdrive shaft is equipped with multiple stages of clutches to transmit, interrupt, and shift power to the tire side through the drive gear.

Also, the overdrive shaft is mounted so as to receive rotational support through a bearing such as a bush in the automatic transmission case, as shown at the left end in FIG. The following problems arise in the automatic transmission case due to the influence of the overdrive shaft which is supported by the rotation.

(1) Since the overdrive shaft is a component that continuously travels at high speed every time the vehicle runs, the overdrive shaft receives force in the longitudinal direction through the engine drive.

(2) Such force in the longitudinal direction causes breakage of the bearing mounted on the automatic transmission case, and particularly when the overdrive shaft is in direct contact with the automatic transmission case, There is a possibility that the breakage occurs.

(3) Since the entire case of the automatic transmission is integrally formed, the whole case must be replaced even if there is some damage. In order to manufacture the automatic transmission case by the expensive die casting method, manufacturing cost and maintenance cost are required.

Korean Registered Patent No. 1302342 (Registered: 2013.08.26) Korean Patent Publication No. 10-2015-0024740 (Publication date: 2015.03.09)

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to provide a structure in which a support bracket for rotatably supporting an overdrive shaft by a roller bearing is detachably installed in an automatic transmission case, and a thrust needle bearing is inserted into the support bracket, In addition to being able to re-use the automatic transmission case by replacing only the support bracket, the overdrive shaft can be supported by the roller bearing and the thrust needle bearing The automatic transmission case is prevented from being broken or broken by dispersing the force, thereby extending the service life of the automatic transmission case.

Particularly, the present invention allows the support bracket to be inserted into the automatic transmission case to be easily removed and replaced, and the thrust needle bearing can be fitted and fixed to the support bracket, so that the structure is simple and easy So that it is possible to replace only the damaged part quickly and to easily maintain it.

Since the outer ring and the inner ring of the thrust needle bearing are fixed to the support bracket so that they are not rotated, even if the overdrive shaft rotates, the outer ring and the inner ring do not rotate together and the thrust needle bearing itself is worn, Thereby preventing the abrasion of the abrasive grains from being worn.

In order to achieve the above object, an automatic transmission case according to the present invention includes a seat 110 for receiving power from an output shaft of an engine and supporting one end of an overdrive shaft D on which a clutch housing C is mounted In the automatic transmission case, the seat 110 has a ring-shaped mounting protrusion 111 protruding in a ring shape having a predetermined width and thickness, and is spaced apart from the center of the mounting protrusion 111 by a predetermined distance, A mounting bracket 200 for rotatably supporting an overdrive shaft D by a roller bearing 212 is mounted on the mounting projection 111 and the supporting bracket 200 is mounted on the mounting projection 111, A support portion 210 which is fitted to the mounting projection 111 and rotatably supports one end of the overdrive shaft D by a roller bearing 212 and a support portion 210 which is fitted to the automatic transmission case 100 And a flange portion 220 extending from the flange portion 220 so as to contact the inner surface of the flange portion 220. The flange portion 220 is formed with a ring shaped thrust needle bearing 300 are inserted and mounted.

Particularly, in the seat 110, a mounting groove 113 having a predetermined diameter centered on the mounting projection 111 is formed between the outer surface of the mounting projection 111 and the rigid projection 112, And the flange portion 220 is inserted and fixed in the groove 113.

The support bracket 200 is made of synthetic resin, aluminum alloy, or metal.

The flange portion 220 is formed with a recess 221 between the edge portion and the support portion 210 and the recess 221 is fitted with the thrust needle bearing 300 .

Finally, the thrust needle bearing 300 is characterized in that the outer jaw of the groove 221 is punched to deform the outer ring so that the outer ring and the inner ring can be prevented from rotating.

The automatic transmission case according to the present invention has the following effects.

(1) Even if the support bracket is broken, only the broken support bracket needs to be replaced, so that it is not necessary to replace the entire case, thereby reducing the maintenance cost.

(2) Since the thrust needle bearing is inserted into the support bracket attached to the automatic transmission case so as to be able to rotate and support the clutch housing, even if the overdrive shaft is subjected to a force in the longitudinal direction, the automatic transmission case is broken It is possible to increase the life span effect and durability.

(3) Since the support bracket can be inserted and machined by machining the portion for mounting the overdrive shaft in the existing automatic transmission case, the technique of the present invention can be applied not only to a newly manufactured automatic transmission case but also to a conventional automatic transmission case.

(4) Since the outer ring of the thrust needle bearing is deformed by punching the outer jaw of the groove to prevent the outer ring and the inner ring from rotating, wear which may be caused by rotation of the inner ring and the outer ring is prevented, and the durability of the thrust needle bearing .

1 is a conceptual diagram schematically showing a bottom surface of a vehicle for showing a mounting position of an automatic transmission case;
2 is a schematic view for explaining a configuration of a conventional automatic transmission case;
FIG. 3 is an exploded perspective view showing a structure for mounting the automatic transmission case according to the present invention on a seat. FIG.
4 is a cross-sectional view showing a configuration of mounting the automatic transmission case according to the present invention on a seat.
5 is a perspective view illustrating a support bracket according to the present invention.
6 is a sectional view of the automatic transmission case according to the present invention in a state in which the structure is combined to show a structure mounted on a seat of the automatic transmission case.
7 is an enlarged view of the portion "A" in Fig. 6; Fig.
8 is a photograph showing a state in which a thrust needle bearing is fixed to a support bracket according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should properly define the concept of the term to describe its invention in the best possible way The present invention should be construed in accordance with the spirit and scope of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Thus, various equivalents And variations may be present.

(Configuration)

The automatic transmission case 100 according to the present invention is characterized in that the support bracket 200 is mounted on a seat 110 formed to rotate and support the overdrive shaft D as shown in Figures 3 to 8 And supports the clutch housing C mounted on the overdrive shaft D by supporting the overdrive shaft D with the needle bearing 212 while holding the thrust needle bearing 300 in the support bracket 200 It is possible.

Particularly, since the present invention is configured to replace the support bracket 200, the portion of the seat 110 is prevented from being broken, and the entire case manufactured by the expensive die casting method can be replaced without replacing the broken support bracket 200 ) Can be replaced with a new one so that durability can be improved. In addition, since the thrust needle bearing 300 disperses and supports the force received in the longitudinal direction of the overdrive shaft D together with the needle bearing 212, the support bracket 200 can be prevented from being damaged and its service life can be extended .

Hereinafter, this configuration will be described in more detail. Here, the overdrive shaft D refers to the input shaft of the transmission connected to the engine, and the clutch housing C is a kind of hub that surrounds the clutch for shifting. The overdrive shaft D is disposed inside the automatic transmission case 100, As shown in Fig.

The seat 110 is formed on the inner surface of the automatic transmission case 100 and rotates one end of the overdrive shaft D fitted in the automatic transmission case 100 as shown in Figures 3 and 4 .

To this end, the seat 110 is mounted such that the support bracket 200 that rotatably supports the overdrive shaft D can be mounted substantially as shown in FIGS. 4, 6, and 7 And includes a projection 111. The mounting protrusion 111 is formed at a position where it meets an axial extension of the overdrive shaft D and is formed into a ring shape having a predetermined width and thickness so as to fit the support bracket 200.

The seat 110 also forms rigid protrusions 112 spaced apart from each other by a predetermined distance with reference to the mounting protrusions 111, as shown in Figs. 4, 6 and 7. The rigid projection 112 is formed for rigidity reinforcement so that the periphery of the seat 110 can sufficiently withstand the rotational force of the rotation of the overdrive shaft D. [ The rigid projection 112 is formed to have a height such that the end protruding outwardly does not contact the clutch housing C mounted on one side of the overdrive shaft D.

In the preferred embodiment of the present invention, it is preferable that a mounting groove 113 is further formed between the outer rim of the mounting projection 111 and the rigid projection 112. The mounting groove 113 is formed to fit and fix the flange portion 220 of the support bracket 200 to be described later so that the support bracket 200 can be firmly fitted and fixed to the seat 110.

The support bracket 200 includes a support portion 210 for supporting the overdrive shaft D and a flange portion 220 extended from the support portion 210 as shown in Figures 3 to 7, .

The support portion 210 is formed with an insertion hole 211 in which the overdrive shaft D can be inserted and a roller bearing 212 for rotatably supporting the overdrive shaft D is formed in the insertion hole 211 And supports the overdrive shaft D so as to rotate smoothly. In particular, the insertion hole 211 is formed in such a size that the overdrive shaft D in which the roller bearing 212 is inserted can be fitted.

The flange portion 220 is formed to protrude from the support portion 210 to enlarge the contact area with the automatic transmission case 100. A thrust needle bearing 300 to be described later is mounted on the flange portion 220 so that the clutch housing C mounted on the overdrive shaft D is contacted with the thrust needle bearing 300 The rigid projection 112 prevents the clutch housing C from contacting the inner surface of the transmission housing 100 or the like.

In the preferred embodiment of the present invention, the flange portion 220 is formed with a groove 221 on the surface facing the thrust needle bearing 300, as shown in Figs. 4 to 7, It is preferable to insert and mount the connector 300 therein. At this time, it is preferable that the inner ring and the outer ring of the thrust needle bearing 300 are configured to be forcedly inserted into the grooves 221, respectively, so that the mounting force can be increased.

Also, in a preferred embodiment of the present invention, it is preferable that the flange portion 220 is installed so as to be fitted and fixed to the mounting groove 113 described above, as shown in Figs. 4 and 7. This is because the flange portion 220 is fitted into the mounting groove 113 in a state where the supporting bracket 200 is fitted to the mounting projection 111 and fixedly supported by the mounting projection 111, It is to be able to do.

The support bracket 200 is preferably made of synthetic resin, aluminum alloy, or metal.

The thrust needle bearings 300 are made of conventional techniques commonly known as planar bearings, as shown in Fig. 3, Fig. 4 and Fig. The thrust needle bearing 300 is formed in a ring shape having a predetermined thickness, and is fitted in the support portion 210 described above. At this time, the thrust needle bearing 300 is inserted into the groove 221 formed in the flange portion 220 as described above.

Particularly, in the preferred embodiment of the present invention, the thrust needle bearing 300 preferably punches the outer jaw of the groove 221 to deform the outer ring so that the outer ring and the inner ring can not rotate. 8 shows that the inner ring and the outer ring are fixed by punching the red circle. Even if the overdrive shaft D is driven, the inner ring and the outer ring of the thrust needle bearing 300 rotate, .

The thrust needle bearing 300 thus fitted is disposed to be in contact with the clutch housing C and can receive both the effect of dispersing the overdrive shaft D and the effect of rotating the overdrive shaft D when the overdrive shaft D receives a force in its axial direction .

As described above, according to the present invention, the support bracket supporting the overdrive shaft is inserted and fixed twice in the automatic transmission case, and when the breakage or failure occurs, only the support bracket can be replaced, It is possible to extend the service life and increase durability.

In particular, since the overdrive shaft is rotatably supported by the needle bearing 212 while being dispersed together with the needle bearing 212, it is possible to prevent the automatic transmission case from being broken or broken due to the rotational force .

Further, since the inner and outer rings of the thrust needle bearings are fixed, rotation of the inner and outer rings during rotation of the overdrive shaft is prevented, thereby prolonging the life of the bearing and preventing damage to other structures.

100: Automatic transmission case
110: sheet
111: Mounting projection
113: mounting groove
200: Support bracket
210: Support portion
211: insertion hole
220: flange portion
221: yo home

Claims (5)

An automatic transmission case having a seat (110) for receiving power from an output shaft of an engine and supporting one end of an overdrive shaft (D) on which a clutch housing (C) is mounted,
The seat 110 has a mounting projection 111 protruding in a ring shape having a predetermined width and thickness and a rigid projection 112 in a ring shape spaced apart by a predetermined distance from the center of the mounting projection 111 Protruded,
The support bracket 200 is mounted on the mounting projection 111 and rotatably supports the overdrive shaft D by a roller bearing 212. The support bracket 200 is fitted to the mounting projection 111, A support portion 210 for rotatably supporting one end of the shaft D by a roller bearing 212 and a flange portion 210 extending from one side of the support portion 210 so as to be in contact with an inner surface of the automatic transmission case 100 220,
The flange portion 220 has a ring-shaped thrust needle bearing 300 inserted into the support portion 210 to be in contact with the clutch housing C,
The flange portion 220 is formed with a groove 221 between the edge portion and the support portion 210 and the thrust needle bearing 300 is inserted into the groove 221. Automatic transmission case.
The method according to claim 1,
A mounting groove 113 having a predetermined diameter centered on the mounting projection 111 is formed between the outer surface of the mounting projection 111 and the rigid projection 112,
And the flange portion (220) is inserted and fixed in the mounting groove (113).
The method according to claim 1,
The support bracket (200)
An automatic transmission case characterized by being made of synthetic resin, aluminum alloy or metal.
delete The method according to claim 1,
The thrust needle bearing (300)
And the outer rim of the groove (221) is punched to deform the outer ring to fix the outer ring and the inner ring so as not to rotate.
KR1020150152296A 2015-10-30 2015-10-30 Auto transmission case KR101745164B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150152296A KR101745164B1 (en) 2015-10-30 2015-10-30 Auto transmission case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150152296A KR101745164B1 (en) 2015-10-30 2015-10-30 Auto transmission case

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KR20170050569A KR20170050569A (en) 2017-05-11
KR101745164B1 true KR101745164B1 (en) 2017-06-09

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4599994B2 (en) 2004-11-04 2010-12-15 トヨタ自動車株式会社 Planetary gear device for vehicle power transmission device
JP2015066993A (en) * 2013-09-26 2015-04-13 アイシン・エィ・ダブリュ株式会社 Hybrid driving device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4599994B2 (en) 2004-11-04 2010-12-15 トヨタ自動車株式会社 Planetary gear device for vehicle power transmission device
JP2015066993A (en) * 2013-09-26 2015-04-13 アイシン・エィ・ダブリュ株式会社 Hybrid driving device

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