CN102401093A - Dual-intermediate-shaft gearbox - Google Patents
Dual-intermediate-shaft gearbox Download PDFInfo
- Publication number
- CN102401093A CN102401093A CN2011103563029A CN201110356302A CN102401093A CN 102401093 A CN102401093 A CN 102401093A CN 2011103563029 A CN2011103563029 A CN 2011103563029A CN 201110356302 A CN201110356302 A CN 201110356302A CN 102401093 A CN102401093 A CN 102401093A
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- CN
- China
- Prior art keywords
- shaft
- main shaft
- input shaft
- bearing
- gearbox
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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Classifications
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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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
- F16H37/046—Combinations of toothed gearings only change gear transmissions in group arrangement with an additional planetary gear train, e.g. creep gear, overdrive
Abstract
The invention provides a dual-intermediate-shaft gearbox of which a main shaft front end is axially positioned. The dual-intermediate-shaft gearbox comprises a supporting clapboard, a rear shell, an input shaft, a main shaft, a planet wheel and a planet carrier, wherein the rear end of the input shaft is connected with the front end of the main shaft in a loose sleeving manner; the input shaft restrains the axial degree of freedom of the main shaft; and the rear end of the main shaft is radially positioned on the supporting clapboard. The rear end of the input shaft is sleeved inside an end hole at the front end of the main shaft in a loose manner, and a restraining member for realizing the relative axial restraining between the input shaft and the main shaft is arranged between the rear end of the input shaft and the inner wall of the end hole at the front end of the main shaft. A first thrust bearing, a bearing race, a second thrust bearing and a stopping member are axially superposed at the rear end of the input shaft in sequence, the first thrust bearing and the bearing race are used for bearing the axial force of the main shaft towards the input shaft, the second thrust bearing is used for bearing the axial force, deviating from input shaft, of the main shaft, and the stopping member is used for tightly pressing and limiting the firs thrust bearing, the bearing race and the second thrust bearing, the restraining member is arranged between the bearing race and the inner wall of the end hole at the front end of the main shaft, and a radial clearance for the floating of the main shaft is reserved between the bearing race and the input shaft.
Description
Technical field
The present invention relates to a kind of pair of jack shaft gearbox, be specifically related to the two jack shaft gearboxes of a kind of 10 retainings, more specifically relate to the two jack shaft gearboxes of 10 retainings that a kind of main tank adopts the helical teeth transmission.
Background technique
Existing heavy type lorry transmission-gear box adopts major and minor case modular design basically, and odd-side adopts the planetary gear train structure, its planetary gear train through planet carrier and bearing only an end be positioned on the back cover, have the unbalanced problem of support, influence the working life of odd-side.
Because it is big that two jack shaft structures have a transmitting torque, the advantage of long service life, therefore, this structure is widely used on the main tank of heavy type lorry transmission-gear box.Two jack shaft structures mesh for guaranteeing two countershaft-gears and mainshaft gear simultaneously, the conformity of the height when requiring the rotation of two countershaft-gears, and spur gear has the advantage that is prone to tooth, is extensively adopted.Compare with helical teeth, straight-tooth has big, the low shortcoming of carrying of noise, how helical teeth is applied in the existing gearbox, and be a problem that presses for solution.
Existing heavy type lorry transmission-gear box comprises input shaft end cap, mesochite and the back cover of assembled in sequence, has supporting clapboard between mesochite and the back cover.Input shaft is positioned input shaft end through bearing and covers, and rear-end of spindle directly is positioned on the supporting clapboard through bearing.
Summary of the invention
The technical problem that the present invention will solve provides a kind of two jack shaft gearboxes of front-end of spindle axially locating.
In order to solve the problems of the technologies described above, technological scheme of the present invention is:
A kind of pair of jack shaft gearbox; Comprise supporting clapboard, back cover, input shaft, main shaft, planet wheel and planet carrier; The empty cover of said input shaft rear end and front-end of spindle connects, the axial freedom of input shaft constraint main shaft, and the rear end of main shaft is radially positioned on the said supporting clapboard.
Particularly, said input shaft rear end is placed in the front-end of spindle stomidium, and the attaching means of realizing that input shaft and main shaft retrain to axial is set between input shaft rear end and the front-end of spindle stomidium inwall.
More specifically; Said input shaft rear end axial order is stacked bear main shaft towards first thrust-bearing, the bearing race of input shaft axial force, bear second thrust-bearing that main shaft deviates from the input shaft axial force, first thrust-bearing, bearing race and second thrust-bearing compressed and spacing block piece; Said attaching means is arranged between bearing race and the said front-end of spindle stomidium inwall, leaves the radial clearance that realizes that main shaft floats between bearing race and the input shaft.
Said attaching means is the jump ring that is positioned at bearing race and front-end of spindle stomidium respective grooves.
Further, said bearing race partly is positioned at said front-end of spindle stomidium, and another part forms radial flange, and flange connects first thrust-bearing and front-end of spindle end face.
Said main shaft adopts the helical gear transmission with two jack shafts, and the contact ratio of said helical gear engagement reaches more than 2.
Further, said main shaft forward gears gear is dextrorotation, and the main shaft reverse gear is left-handed.
Said planet carrier two ends positioning supports, the planet carrier of an end is supported on the said back cover, and the planet carrier of the other end is supported on the said supporting clapboard, and the rear end of said main shaft is stretched into to rotate in the rotation joint part of planet carrier and supporting clapboard and with this joint part and is connected.
Further, said joint part rotates through needle bearing and is connected in said supporting clapboard.
Above-mentioned gearbox is the two jack shaft gearboxes of 10 retainings.
The present invention connects input shaft rear end and the empty cover of front-end of spindle, the axial freedom of input shaft constraint main shaft, and the rear end of main shaft is radially positioned on the said supporting clapboard, has realized the front end axially locating of main shaft.
Description of drawings
Do further detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention:
Fig. 1 is an overall structure sectional view of the present invention.
Fig. 2 is the structural representation of input shaft and main shaft point of attachment among Fig. 1.
Fig. 3 is an A-A sectional view among Fig. 2.
Fig. 4 is a planet carrier two end supports structural representation among Fig. 1.
Among the figure: 1 main tank, 2 odd-sides, 3 input shafts, 4 main shafts, 5 planet wheels; 6 input shaft end caps, 7 bearings, 8 first thrust-bearings, 9 jump rings, 10 second thrust-bearings; 11 trip rings and locking plate, 12 packing rings, 13 bearing races, 14 linings, 15 lubricating structures; 16 supporting clapboards, 17 front end planet carriers, 18 needle bearings, 19 rear end planet carriers, 20 deep groove ball bearings.
Embodiment
Like Fig. 1, shown in 2 and 4, two jack shaft gearboxes adopt main tank 1 and odd-side 2 modular design, and main tank adopts two jack shaft structures, and odd-side adopts the planetary gear train structure.Consider various, the complex structure of parts of the present invention, improvements that present embodiment is only made the inventor and related associated part are elaborated, and this explanation does not cause restriction to the protection domain that this patent requires.
The two jack shaft gearboxes of heavy truck comprise input shaft end cap 6, mesochite and the back cover of assembled in sequence, have supporting clapboard 16 between mesochite and the back cover.Input shaft 3 is positioned on the input shaft end cap 6 through bearing 7, and the rear end of main shaft 4 is radially positioned on the said supporting clapboard 16, and the empty cover of input shaft 3 rear ends and main shaft 4 front ends connects, the axial freedom of input shaft 3 constraint main shafts 4.
The rear end that main shaft 4 is shown below for example is radially positioned at a kind of situation on the said supporting clapboard 16:
Since the planetary gear train of existing heavy type lorry transmission-gear box odd-side 2 through bearing only an end be positioned on the back cover, have the short problem in working life uneven, odd-side that supports.In order to address this problem, the inventor is improved to the two ends positioning supports with planetary gear train.As shown in Figure 4, planetary gear train one end is supported on the said back cover through rear end planet carrier 19, and the other end is supported on the said supporting clapboard 16 through front end planet carrier 17.Concrete a kind of supporting way is: rear end planet carrier 19 is supported on the back cover via deep groove ball bearing 20, and front end planet carrier 17 is supported on the supporting clapboard 16 through needle bearing 18.The front and back dual-gripper can reduce the influence of car load factor (for example transmission shaft is uneven) to gearbox inside proper functioning, the working life of improving odd-side.
Because front end planet carrier 17 is supported on the supporting clapboard 16 through needle bearing 18, has caused the change of main shaft 4 rear end position structures.Concrete a kind of rear-end of spindle position structure is: the rear end of main shaft 4 is stretched in the rotation joint part of front end planet carrier 17 and supporting clapboard 16 and with this joint part rotation and is connected; Being equivalent to main shaft 4 rear ends rotates indirectly and is connected on the supporting clapboard 16; Cause the rear-end of spindle axially locating not enough, therefore the main shaft axially locating is moved on to front-end of spindle.
Introduce the front-end of spindle position structure below in detail:
In order to reach better main shaft axially locating effect, introduce a kind of preferred bearing race below.These bearing race 13 parts are positioned at said main shaft 4 front end stomidiums, and another part forms radial flange, and flange connects first thrust-bearing 8 and main shaft 4 front end end faces.
In order to form optimum lubricated environment, input shaft 3 is provided with Oil Guide passage and Oil Guide ring.
Above-mentioned front-end of spindle position structure can be applied to adopt main tank to adopt two jack shaft gearboxes of helical teeth transmission, faces the structure and stressed description of this gearbox down:
In order to have improved the gearbox bearing capacity and to have reduced the noise of transmission assembly again significantly, main shaft adopts the helical gear transmission with two jack shafts, and the contact ratio of said helical gear engagement reaches more than 2.A kind of more specifically mode is: main shaft forward gears gear is dextrorotation, and the main shaft reverse gear is left-handed.Each corresponding each axial force that receives of gearbox is opposite with conventional design, the axial force to the right that bearing of input shaft is given by driving gear, and main shaft receives axial force left.Adopt the above-mentioned front-end of spindle position structure can balancing main shaft and input shaft axial force, offset the influence of helical teeth axial force.
For this structure, main tank 1 is when retaining, and main shaft 4 receives axial force left, and this axial force transmission leans on first thrust-bearing 8 to carry out the transition to input shaft 3 to bearing race 13 then, leans on the input shaft balance; When main tank during to the gearshift of low gear, main shaft 4 receives the power of axially shifting gears to the right, is delivered to bearing race 13 through jump ring 9, is delivered to second thrust-bearing 10 then,, thrust-bearing packing ring 12, trip ring 11, be delivered to input shaft 3 at last, lean on input shaft 3 balances.
More particularly, said gearbox is the two jack shaft gearboxes of 10 retainings.
Below only to illustrate the invention, those skilled in the art can know that the each part mentioned above structure can constitute new technological scheme each other all within the protection domain of this patent.
Claims (10)
1. two jack shaft gearbox; Comprise supporting clapboard, back cover, input shaft, main shaft, planet wheel and planet carrier; It is characterized in that: the empty cover of said input shaft rear end and front-end of spindle connects; The axial freedom of input shaft constraint main shaft, the rear end of main shaft is radially positioned on the said supporting clapboard.
2. according to claim 1 pair of jack shaft gearbox is characterized in that: said input shaft rear end is placed in the front-end of spindle stomidium, and the attaching means of realizing that input shaft and main shaft retrain to axial is set between input shaft rear end and the front-end of spindle stomidium inwall.
3. according to claim 2 pair of jack shaft gearbox; It is characterized in that: said input shaft rear end axial order is stacked bear main shaft towards first thrust-bearing, the bearing race of input shaft axial force, bear second thrust-bearing that main shaft deviates from the input shaft axial force, first thrust-bearing, bearing race and second thrust-bearing compressed and spacing block piece; Said attaching means is arranged between bearing race and the said front-end of spindle stomidium inwall, leaves the radial clearance that realizes that main shaft floats between bearing race and the input shaft.
4. according to claim 3 pair of jack shaft gearbox is characterized in that: said attaching means is the jump ring that is positioned at bearing race and front-end of spindle stomidium respective grooves.
5. according to the arbitrary described pair of jack shaft gearbox of claim 3～4, it is characterized in that: said bearing race partly is positioned at said front-end of spindle stomidium, and another part forms radial flange, and flange connects first thrust-bearing and front-end of spindle end face.
6. according to the arbitrary described pair of jack shaft gearbox of claim 1～5, it is characterized in that: said main shaft adopts the helical gear transmission with two jack shafts, and the contact ratio of said helical gear engagement reaches more than 2.
7. according to claim 6 pair of jack shaft gearbox is characterized in that: said main shaft forward gears gear is dextrorotation, and the main shaft reverse gear is left-handed.
8. according to the arbitrary described pair of jack shaft gearbox of claim 1～7; It is characterized in that: said planet carrier two ends positioning supports; The planet carrier of one end is supported on the said back cover; The planet carrier of the other end is supported on the said supporting clapboard, and the rear end of said main shaft is stretched into to rotate in the rotation joint part of planet carrier and supporting clapboard and with this joint part and connected.
9. according to claim 8 pair of jack shaft gearbox is characterized in that: said joint part rotates through needle bearing and is connected in said supporting clapboard.
10. according to the arbitrary described pair of jack shaft gearbox of claim 1～9, it is characterized in that: said gearbox is the two jack shaft gearboxes of 10 retainings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103563029A CN102401093A (en) | 2011-11-11 | 2011-11-11 | Dual-intermediate-shaft gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103563029A CN102401093A (en) | 2011-11-11 | 2011-11-11 | Dual-intermediate-shaft gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102401093A true CN102401093A (en) | 2012-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103563029A Pending CN102401093A (en) | 2011-11-11 | 2011-11-11 | Dual-intermediate-shaft gearbox |
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| CN (1) | CN102401093A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734441A (en) * | 2012-06-27 | 2012-10-17 | 中国重汽集团济南动力有限公司 | Novel dual-intermediate shaft gearbox |
| CN102748455A (en) * | 2012-07-13 | 2012-10-24 | 中国重汽集团济南动力有限公司 | Axial positioning structure for main shaft of speed changing box with double intermediate shafts of primary box and planet wheel system of secondary box |
| WO2022134679A1 (en) * | 2020-12-21 | 2022-06-30 | 浙江三凯机电有限公司 | Hypoid gear reducer |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6106426A (en) * | 1998-06-04 | 2000-08-22 | A. Frier, Flender Ag | Arrangement for a double shaft extruder |
| CN2746205Y (en) * | 2004-10-08 | 2005-12-14 | 杭州前进齿轮箱集团有限公司 | Vehicle mechanical speed transforming transmission |
| CN101004203A (en) * | 2006-10-21 | 2007-07-25 | 山西大同齿轮集团有限责任公司 | Gearbox of heavy-duty car in sixteen steps |
| CN201074658Y (en) * | 2007-09-18 | 2008-06-18 | 中国重汽集团济南技术中心有限公司 | Gearbox |
| CN201475263U (en) * | 2009-09-01 | 2010-05-19 | 中国重汽集团济南动力有限公司 | Novel transmission gear of heavy truck |
| CN101975249A (en) * | 2010-11-10 | 2011-02-16 | 中国第一汽车集团公司 | Heavy ten-gear speed changer assembly |
| CN102330803A (en) * | 2011-10-15 | 2012-01-25 | 中国重汽集团济南动力有限公司 | 16-shift double-countershaft speed changing box |
| CN202326944U (en) * | 2011-11-11 | 2012-07-11 | 中国重汽集团济南动力有限公司 | Double-middle-shaft speed changing box |
-
2011
- 2011-11-11 CN CN2011103563029A patent/CN102401093A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6106426A (en) * | 1998-06-04 | 2000-08-22 | A. Frier, Flender Ag | Arrangement for a double shaft extruder |
| CN2746205Y (en) * | 2004-10-08 | 2005-12-14 | 杭州前进齿轮箱集团有限公司 | Vehicle mechanical speed transforming transmission |
| CN101004203A (en) * | 2006-10-21 | 2007-07-25 | 山西大同齿轮集团有限责任公司 | Gearbox of heavy-duty car in sixteen steps |
| CN201074658Y (en) * | 2007-09-18 | 2008-06-18 | 中国重汽集团济南技术中心有限公司 | Gearbox |
| CN201475263U (en) * | 2009-09-01 | 2010-05-19 | 中国重汽集团济南动力有限公司 | Novel transmission gear of heavy truck |
| CN101975249A (en) * | 2010-11-10 | 2011-02-16 | 中国第一汽车集团公司 | Heavy ten-gear speed changer assembly |
| CN102330803A (en) * | 2011-10-15 | 2012-01-25 | 中国重汽集团济南动力有限公司 | 16-shift double-countershaft speed changing box |
| CN202326944U (en) * | 2011-11-11 | 2012-07-11 | 中国重汽集团济南动力有限公司 | Double-middle-shaft speed changing box |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734441A (en) * | 2012-06-27 | 2012-10-17 | 中国重汽集团济南动力有限公司 | Novel dual-intermediate shaft gearbox |
| CN102748455A (en) * | 2012-07-13 | 2012-10-24 | 中国重汽集团济南动力有限公司 | Axial positioning structure for main shaft of speed changing box with double intermediate shafts of primary box and planet wheel system of secondary box |
| WO2022134679A1 (en) * | 2020-12-21 | 2022-06-30 | 浙江三凯机电有限公司 | Hypoid gear reducer |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120404 |