CN203258033U - Automobile transmission gear positioning structure - Google Patents
Automobile transmission gear positioning structure Download PDFInfo
- Publication number
- CN203258033U CN203258033U CN 201320227006 CN201320227006U CN203258033U CN 203258033 U CN203258033 U CN 203258033U CN 201320227006 CN201320227006 CN 201320227006 CN 201320227006 U CN201320227006 U CN 201320227006U CN 203258033 U CN203258033 U CN 203258033U
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- gear
- bearing
- shaft
- bearing sleeve
- axle
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Abstract
Provided is an automobile transmission gear positioning structure. According to the technical scheme, the automobile transmission gear positioning structure comprises a shaft, gears and synchronizer gear hubs, wherein the gears and the synchronizer gear hubs are installed on the shaft, a ball bearing is arranged at one end of the shaft, particularly the shaft is further provided with bearing bushes, the bearing bushes are installed on the shaft and are in interference fit with the shaft, the bearing bushes are respectively located at a second gear installation position, a third gear installation position and a fourth gear installation position on the shaft, a bearing is installed at the outer side of each bearing bush, and each gear is installed at the outer side of each bearing bush. According to the automobile transmission gear positioning structure, shaft shoulders arranged on the bearing bushes are utilized to replace the axial positioning function of clamping rings, so that a plurality of steps, a cutter-receding groove and a ring-clamping groove in the shaft can be eliminated, the shaft is made to be simple in structure and convenient to machine, a stress concentration area is not formed in the shaft easily, cracks are not formed easily, and the strength and stiffness of the shaft are improved. Besides, the bearing bushes are used for replacing the clamping ring, so that the axial positioning is accurate, the dimension chain is short, the dimensional tolerance accumulation is small, and the axial clearance among the gears is guaranteed easily. In addition, the installation of the clamping ring is omitted, and assembly is simple.
Description
Technical field
The utility model relates to a kind of automobile component, particularly is conducive to improve the automobile gearbox gear position structure of axle intensity.
Background technique
The power resources of automobile running are in power plant, as motor, and motor etc.According to the requirement of vehicle tractive force, the rotating speed of motor and moment of torsion are changed and are passed on wheel by power transmitting deice, and power transmitting deice is commonly called speed changer.The working principle of automotive transmission is recently to change the excursion of Automobile drive power and the speed of a motor vehicle by changing transmission, normally travels under various road conditions conditions to satisfy automobile.Speed changer normally is made of input shaft and output shaft, arrange on input shaft and output shaft many to driving gear and driven gear, general driving gear or and axle be made of one the formative gear axle, or with axle by spline joint, with the input shaft synchronous rotary; Driven gear is contained on output shaft by the bearing empty set, with in conjunction with gear ring, realizes that by synchronizer power connects on driven gear, and the power of input shaft is passed on output shaft by driving gear, driven gear, realizes the transmission of power.At present, the position structure of speed change gear is a plurality of shaft shoulders of design and annular groove on axle, bearing directly is enclosed within on axle, gear and tooth hub rely on snap ring and the axial force transmission that gear transmission produced by snap ring to axle, above-mentioned position structure makes and forms a plurality of steps and tool withdrawal groove on axle, and have an annular groove, make the processed complex of axle, processing cost is high, and easily forms area of stress concentration in sudden change place of shaft section size, affect the intensity of axle, easily crack at the alignment process of axle; In addition, gear shaft is many to the location dimension tolerance stack, and axial clearance is difficult for guaranteeing.
The model utility content
The purpose of this utility model is the drawback for prior art, and a kind of automobile gearbox gear position structure that improves the intensity of axle, error reduced in size is provided.
Problem described in the utility model realizes with following technical proposals:
A kind of automobile gearbox gear position structure; It comprises axle and the second gear that is arranged on axle; The 3rd gear; The 4th gear; At the second gear right-hand member; The 3rd gear left end is respectively equipped with the first synchromesh gear hub; The second synchromesh gear hub; Axle head is provided with ball bearing; Specialization is; Described structure also is provided with bearing housing; Bearing housing is arranged on axle; Form interference fit with axle; Bearing housing lays respectively at the second gear installation position on axle; The 3rd gear installation position; The 4th place, gear installation position; Each bearing housing outside installation bearing; Each gear is installed respectively outside each bearing.
Above-mentioned automobile gearbox gear position structure, described bearing housing comprise the first cylindrical shaft bearing sleeve equipped with the 3rd gear, with equipped the second cylindrical shaft bearing sleeve of the 4th gear, the T oblique crank Z bearing sleeve equipped with the second gear, wherein, one side of T oblique crank Z bearing sleeve is provided with shaft shoulder part, the first cylindrical shaft bearing sleeve and T oblique crank Z bearing sleeve are side by side between first, second synchromesh gear hub, the shaft shoulder part end of T oblique crank Z bearing sleeve and the first cylindrical shaft bearing sleeve end apical grafting partly form axial limiting between the second gear, the 3rd gear by the shaft shoulder of T oblique crank Z bearing sleeve; Described the second cylindrical shaft bearing sleeve is between ball bearing and the second synchromesh gear hub.
Above-mentioned automobile gearbox gear position structure leaves axial motion gap delta 2 between the shaft shoulder part of the second gear and its left side T oblique crank Z bearing sleeve, first synchromesh gear hub on right side; Leave axial motion gap delta 3 between the shaft shoulder part of the 3rd gear and its right side T oblique crank Z bearing sleeve, second synchromesh gear hub in left side; Leave axial motion gap delta 4 between first synchromesh gear hub on the 4th gear and its right side, the ball bearing in left side.
Above-mentioned automobile gearbox gear position structure, described axle is provided with oil leab and oil groove, and oil groove is provided with radial direction oil hole for being arranged in vertically the annular slot on axle in each oil groove, and oil leab is communicated with radial direction oil hole; Described T oblique crank Z bearing sleeve and the first cylindrical shaft bearing sleeve, the second cylinder-shaped bearing put and are respectively equipped with the bearing housing oilhole, and the position of bearing housing oilhole is corresponding with the oil groove position.
Above-mentioned automobile gearbox gear position structure, described bearing are needle bearing.
The utility model has designed a kind of automobile gearbox gear position structure for solving the strength problem that reduces the gear locating element, improves axle.This structure is set up bearing housing, gear set is on bearing housing, utilize the shaft shoulder that arranges on bearing housing to substitute the axially locating effect of snap ring, thereby can remove a plurality of steps on axle and tool withdrawal groove, annular groove, make axle construction simple, easy to process, and be difficult for forming area of stress concentration on axle, be difficult for cracking, be conducive to improve the strength and stiffness of axle.In addition, substitute snap ring with bearing housing, can make axially locating accurate, dimensional chain is short, and the tolerance of size accumulation is few, and gear axial clearance is easy to guarantee, and the installation of having saved snap ring, makes assembling simple.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is T oblique crank Z bearing sleeve structural representation;
Fig. 3 is the first cylinder-shaped bearing nested structure schematic diagram;
Fig. 4 is the schematic diagram of oil groove and oilhole on axle.
In figure, each list of reference numerals is: 1, locking nut, 2, axle, the 3, second cylindrical shaft bearing sleeve, 4, the 4th gear, the 5, second synchromesh gear hub, 6, bearing, 7, the first cylindrical shaft bearing sleeve, the 8, the 3rd gear, 9, T oblique crank Z bearing sleeve, 9-1, shaft shoulder part, the 10, second gear, the 11, first synchromesh gear hub, 12, the first gear, 13, oil leab, 14, radial direction oil hole, 15, ball bearing, 16, the bearing housing oilhole, 17, oil groove.
Embodiment
Referring to Fig. 1, automobile gearbox gear position structure described in the utility model comprises axle 2, be provided with side by side the first gear 12, the second gear 10, the 3rd gear 8, the 4th gear 4 on axle, be provided with the first synchromesh gear hub 11 between the first gear and the second gear, be provided with the second synchromesh gear hub 5 between the 3rd gear and the 4th gear, synchromesh gear hub is provided with synchronizer, is provided with ball bearing 15 at the axle left end, and ball bearing is by locking nut 1 axial restraint.The first gear 12 is connected with shaft drive through bearing.For reducing step and the groove on axle 2, the utility model is provided with several bearing housings, bearing housing is arranged on axle, forms interference fit with axle, bearing housing lays respectively at the second gear installation position on axle, the 3rd gear installation position, the 4th place, gear installation position, each bearing housing outside installation bearing 6, gear is installed respectively outside each bearing again, and described bearing adopts needle bearing.
Referring to Fig. 1-3, bearing housing comprise the first cylindrical shaft bearing sleeve 7 equipped with the 3rd gear 8, with equipped the second cylindrical shaft bearing sleeve 3 of the 4th gear and the T oblique crank Z bearing sleeve 9 equipped with the second gear 10.Wherein, the left side of T oblique crank Z bearing sleeve 9 is provided with shaft shoulder part 9-1, shaftless being arranged side by side between first, second synchromesh gear hub to the gap of the first cylindrical shaft bearing sleeve and T oblique crank Z bearing sleeve, the shaft shoulder part left side of T oblique crank Z bearing sleeve and the first right side, cylindrical shaft bearing sleeve end apical grafting form axial limiting between the second gear, the 3rd gear by the shaft shoulder part 9-1 of T oblique crank Z bearing sleeve.This structure is spacing with the snap ring that T oblique crank Z bearing sleeve substitutes original structure, reduces and process groove on axle, has simplified the course of working of axle and the assembling of parts on shaft when improving axle intensity, stiffness.In addition, can well guarantee gear shaft to the free clearance that requires, short because of dimensional chain, each size is easy to assurance, and the axial clearance mobility scale of gear is little.The second cylindrical shaft bearing sleeve 3 is between ball bearing 15 and the second synchromesh gear hub 5.
Still referring to Fig. 1, the first gear, the second gear, the 3rd gear, the 4th gear have a certain amount of amount of axial movement.Axial motion gap between first synchromesh gear hub 11 in the first gear 12 and its left side, the shaft shoulder on right side is δ 1; The axial motion gap of 11 of the shaft shoulder part 9-1 of the second gear 10 and its left side T oblique crank Z bearing sleeve, first synchromesh gear hub on right side is δ 2; The axial motion gap of 5 of the shaft shoulder part 9-1 of the 3rd gear 8 and its right side T oblique crank Z bearing sleeve, second synchromesh gear hub in left side is δ 3; The axial motion gap of 15 of second synchromesh gear hubs 5 on the 4th gear 4 and its right side, the ball bearing in left side is δ 4.δ 1, δ 2, δ 3, δ 4 are of a size of the 0.1-0.2 millimeter.
Referring to Fig. 1-4, be the sufficient lubrication bearing, be provided with oil leab 13 and oil groove 17 on axle 2, oil groove is provided with radial direction oil hole 14 for being arranged in vertically the annular slot on axle in each oil groove, and oil leab is communicated with radial direction oil hole; Be respectively equipped with bearing housing oilhole 16 on described T oblique crank Z bearing sleeve 9 and the first cylindrical shaft bearing sleeve 7, the second cylindrical shaft bearing sleeve 3, the position of each bearing housing oilhole is corresponding with the oil groove position.Lubricant oil enters each oil groove 17 through oil leab 13, radial direction oil hole 14, then flows to bearing 6 places through oil groove 17, bearing housing oilhole 16, and each bearing is carried out sufficient lubrication.
Claims (5)
1. automobile gearbox gear position structure; It comprises axle (2) and is arranged on the second gear (10) on axle; The 3rd gear (8); The 4th gear (4); At the second gear right-hand member; The 3rd gear left end is respectively equipped with the first synchromesh gear hub (11); The second synchromesh gear hub (5); Axle head is provided with ball bearing (15); It is characterized in that; Described structure also is provided with bearing housing; Bearing housing is arranged on axle; Form interference fit with axle; Bearing housing lays respectively at the second gear installation position on axle; The 3rd gear installation position; The 4th place, gear installation position; Each bearing housing outside installation bearing (6); Each gear is installed respectively outside each bearing.
2. automobile gearbox gear position structure according to claim 1; It is characterized in that; Described bearing housing comprises the first cylindrical shaft bearing sleeve (7) equipped with the 3rd gear (8); The second cylindrical shaft bearing sleeve (3) equipped with the 4th gear; The T oblique crank Z bearing sleeve (9) equipped with the second gear (10); Wherein, One side of T oblique crank Z bearing sleeve (9) is provided with shaft shoulder part (9-1); The first cylindrical shaft bearing sleeve and T oblique crank Z bearing sleeve are positioned at first side by side; Between the second synchromesh gear hub; The shaft shoulder part end of T oblique crank Z bearing sleeve and the first cylindrical shaft bearing sleeve end apical grafting; Shaft shoulder part (9-1) by T oblique crank Z bearing sleeve forms the second gear; Axial limiting between the 3rd gear; Described the second cylindrical shaft bearing sleeve (3) is positioned between ball bearing (15) and the second synchromesh gear hub (5).
3. automobile gearbox gear position structure according to claim 2, is characterized in that, leaves axial motion gap delta 2 between the shaft shoulder part (9-1) of the second gear (10) and its left side T oblique crank Z bearing sleeve, first synchromesh gear hub (11) on right side; Leave axial motion gap delta 3 between the shaft shoulder part (9-1) of the 3rd gear (8) and its right side T oblique crank Z bearing sleeve, second synchromesh gear hub (5) in left side; Leave axial motion gap delta 4 between first synchromesh gear hub (5) on the 4th gear (4) and its right side, the ball bearing (15) in left side.
4. automobile gearbox gear position structure according to claim 3, it is characterized in that, described axle (2) is provided with oil leab (13) and oil groove (17), oil groove is for being arranged in vertically the annular slot on axle, be provided with radial direction oil hole (14) in each oil groove, oil leab is communicated with radial direction oil hole; Be respectively equipped with bearing housing oilhole (16) on described T oblique crank Z bearing sleeve (9) and the first cylindrical shaft bearing sleeve (7), the second cylindrical shaft bearing sleeve (3), the position of bearing housing oilhole is corresponding with the oil groove position.
5. automobile gearbox gear position structure according to claim 4, is characterized in that, described bearing (6) is needle bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320227006 CN203258033U (en) | 2013-04-28 | 2013-04-28 | Automobile transmission gear positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320227006 CN203258033U (en) | 2013-04-28 | 2013-04-28 | Automobile transmission gear positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203258033U true CN203258033U (en) | 2013-10-30 |
Family
ID=49470596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320227006 Expired - Fee Related CN203258033U (en) | 2013-04-28 | 2013-04-28 | Automobile transmission gear positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203258033U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790983A (en) * | 2014-03-12 | 2014-05-14 | 南车成都机车车辆有限公司 | Traction motor inward-insertion gear interference fit structure and assembling and designing method thereof |
| CN111271440A (en) * | 2020-03-17 | 2020-06-12 | 重庆青山工业有限责任公司 | Lubricating mechanism for shafting of automobile transmission |
-
2013
- 2013-04-28 CN CN 201320227006 patent/CN203258033U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790983A (en) * | 2014-03-12 | 2014-05-14 | 南车成都机车车辆有限公司 | Traction motor inward-insertion gear interference fit structure and assembling and designing method thereof |
| CN111271440A (en) * | 2020-03-17 | 2020-06-12 | 重庆青山工业有限责任公司 | Lubricating mechanism for shafting of automobile transmission |
| CN111271440B (en) * | 2020-03-17 | 2024-04-05 | 重庆青山工业有限责任公司 | Shafting lubricating mechanism of automobile transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20210428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |