CN2090787U - Two-side transmission device for variant four-wheel driving tractor - Google Patents
Two-side transmission device for variant four-wheel driving tractor Download PDFInfo
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- CN2090787U CN2090787U CN 91204989 CN91204989U CN2090787U CN 2090787 U CN2090787 U CN 2090787U CN 91204989 CN91204989 CN 91204989 CN 91204989 U CN91204989 U CN 91204989U CN 2090787 U CN2090787 U CN 2090787U
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- bevel drive
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 65
- 238000012546 transfer Methods 0.000 claims description 7
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The transmission device for two-side driven modified four-wheel driven tractor features that the power is led out from two sides of the differential mechanism of back axle of original two-wheel driven tractor and then transmitted to front driving wheel via side bevel gear, universal joint drive shaft and two-stage bevel gear type front axle for final drive.
Description
The front wheel assist tractor driving device is on the basis of existing two-wheel drive trac. transmission device, two front driven wheels are become front driving wheel, thereby improve the adhesion value of trac. and at the crossing ability of moist soft terrain, to improve the tractive force and the drawbar efficiency of trac..
Existing front wheel assist tractor driving device mainly contains two kinds of schemes, a kind of is the side transmission scheme, promptly draw power from a side of transmission gearbox, through auxiliary gear box, transmission shaft, propons main gear, the final transmission of front axle differential and propons (the final transmission of no propons that has, but increase the universal joint of taking out), give front driving wheel with transmission of power.Another kind is middle transmission scheme, it is to draw power from middle part, transmission gearbox below, through auxiliary gear box, transmission shaft, propons main gear, front axle differential and the final transmission of propons (the final transmission of no propons that has, but increase the universal joint of taking out), give front driving wheel with transmission of power.
More than two kinds of schemes draw from " the 70th piece of trac. of mechanical engineering manual " the 29th page (China Machine Press, 1978).In " trac. both at home and abroad " (first tractor manufacturer is published, 1989) book of publishing recently, collected 112 kinds of domestic and international front wheel assist tractors, all adopt above-mentioned two kinds of schemes.
Mainly there are following two shortcomings in current programme:
1. reduced the ground Clearance of trac.
" the transmission shaft inclination angle is bigger during the side transmission, has reduced crack, agronomy ground; During transmission crack, road ground the end of than ".(drawing) from " trac. design and calculating " the 46th page, Shanghai science tech publishing house, 1980.This shortcoming has seriously influenced front wheel assist tractor at up-and-down ground and the crossing ability between crop row.
2. structure is complicated, and cost is higher
Though the position of side transmission scheme and middle transmission scheme auxiliary gear box is distinguished to some extent, but their power transmission route is identical, all be through auxiliary gear box, transmission shaft, propons main gear, front axle differential and the final transmission of propons (the final transmission of no propons that has, but propons main gear and front axle differential scantling of structure are bigger, the crack, ground is lower), pass to front driving wheel.Because transmission link is many, front driving axle housing complexity in addition, so cost is higher." from the initialization expense, general four wheel drive is than two-wheel drive price of complete machine expensive about 25% " (draw from " external trac. bibliography four-wheel drive tractor " the 7th page, trac. research institute in Luoyang publishes, 1975).The present front wheel assist tractor price of China is general also high by 25% than the former machine of the two-wheel drive before the modification, and that have even high 30%.
The purpose of this utility model is to provide a kind of ground Clearance of neither reducing former two-wheel drive trac. in order to overcome the above-mentioned major defect of existing front wheel assist tractor, makes the front wheel assist tractor driving device of its designs simplification again.
Being achieved through the following technical solutions of above-mentioned purpose:
Front wheel assist tractor both sides driving device, mainly comprise master clutch, change speed gear box, the back axle main gear, rear-axle differential, the final transmission of back axle, transmission shaft, the final transmission of propons, the final transmission of said propons is the final transmission of twin-stage finishing bevel gear cuter formula propons, mainly comprise vertical shaft (22) and one-level bevel drive, the secondary bevel drive is formed, the one-level bevel drive is made up of the drive bevel gear (5) of intermeshing one-level bevel drive and the driven wheel of differential (4) of one-level bevel drive, the secondary bevel drive is made up of the drive bevel gear (3) of intermeshing secondary bevel drive and the driven wheel of differential (2) of secondary bevel drive, one-level bevel drive and secondary bevel drive place respectively in one-level bevel drive housing (21) and the secondary bevel drive housing (24), vertical shaft (22) is sleeved in the sleeve pipe of fixing with front axle (17) (25), the drive bevel gear of one-level bevel drive (5) connects by the transmission shaft (6) of joint yoke (20) with the band universal-joint, and the driven wheel of differential of secondary bevel drive (2) is fixed on the wheel shaft of front driving wheel (1).Its special character is on the rear-axle differential semiaxis (15) of rear-axle differential (12) both sides a pair of intermeshing side bevel drive to be housed respectively, wherein the drive bevel gear of side bevel drive (9) is driven by rear-axle differential semiaxis (15), the mouth of the driven wheel of differential of side bevel drive (7) is given transmission of power by the transmission shaft (6) of band universal-joint the final transmission of twin-stage finishing bevel gear cuter formula propons of propons both sides, pass to front driving wheel (1) again, on above drive path, be provided with power-transfer clutch (8).
More than the drive bevel gear (9) of said side bevel drive and the driven wheel of differential (7) of side bevel drive can be contained in the semiaxis housing (10), also housing can be set separately.
More than the input end of drive bevel gear (5) of said one-level bevel drive towards rear tractor, the height of the transmission shaft (6) of band universal-joint turns to and exceeds not influence front driving wheel (1).
Further narrate the technology contents of this programme below in conjunction with the given embodiment of accompanying drawing.The outstanding feature of this programme is to draw power from the rear-axle differential both sides, transmission shaft (6), the final transmission of twin-stage finishing bevel gear cuter formula propons by side bevel drive, band universal-joint, give front driving wheel (1) with back axle main gear (16) through the transmission of power that rear-axle differential (12) transmits, thereby cancelled the auxiliary gear box in the current programme, propons main gear and front axle differential, its structure is obviously simplified and improved the ground Clearance.In order to separate and to engage the power that passes toward front driving wheel, this programme is provided with power-transfer clutch (both sides all need setting) passing from the rear-axle differential both sides on a certain link of the drive path of front driving wheel.Can make trac. be in two-wheel drive state or four wheel drive state so as required.The form of power-transfer clutch can be multiple, as engagement type, castellated, tooth shell type, pole-pin type etc.If adopt overriding clutch, when the rear drive sprocket slippage rate reaches a certain numerical value, front driving wheel (1) will drive voluntarily and need not pilot control.The engaged clutch of selecting for use in the present embodiment is loaded in the semiaxis housing (10).
For making transmission shaft not hinder the deflection of front driving wheel (1) when turning to, the position of the input end of the final transmission of twin-stage finishing bevel gear cuter formula propons of both sides should be higher, guarantee by vertical shaft (22), its height should make the transmission shaft (6) of band universal-joint do not hinder front driving wheel (1) in steering procedure with than wide-angle deflection, the Turning radius that can make front wheel assist tractor like this is identical with former machine before the modification, makes trac. have good manoevreability after modification.
Consider waving of propons, the both sides transmission shaft need be with universal-joint.Though front and back drive wheel diameter does not wait, because the terrain clearance of the terrain clearance of rear-axle differential (12) and front driving wheel (1) upper end is more or less the same, therefore, transmission shaft (6) inclination angle of band universal-joint is less, and the universal-joint force-bearing situation is good.
The scheme that the utility model provides has the following advantages:
1. do not reduce the road clearance of former machine
Owing to do not have propons central transmission and front axle differential, the diameter of front axle sleeve pipe can be basic identical with former machine even equate in this programme, do not reduce the crack, road ground of former machine; Again higher because of the position of both sides power transmission shaft, as not reduce former machine crack, agronomy ground. Thereby overcome the shortcoming that current programme reduces the road clearance, the tractor of being convenient to after the modification passes through between up-and-down ground and crop row.
2. simplified structure reduces cost
This programme is obvious than the advantage of current programme at simplified structure, aspect reducing cost. For ease of comparing, suppose that current programme also adopts the final transmission device of twin-stage bevel gear type propons, then this programme is only with left and right each side Bevel Gear Transmission and left and right each power transmission shaft, transfer case, propons central transmission, front axle differential and a power transmission shaft of having replaced current programme, and saved complicated front driving axle housing, and the engine bracker of possible general former machine (intricate casting that connects engine and front axle). Manufacturing cost is significantly reduced.
3. improved the differential locking-device performance
Existing modification four wheel drive scheme only can lock two rear drive sprockets when the back axle differential locking-device engages.Cause the structure of front driving axle more complicated.This programme can utilize the back axle differential locking-device of former machine, and expendable locked forward and backward four drive wheels are convenient to trac. and are rolled the location that excessive settlement skids away from.
4. the layout of power take-off shaft before being convenient to
Power take-off shaft before some operation needs, but current programme makes power take-off shaft be difficult to stretch out to trac. the place ahead because of the obstruction of front driving axle, and this programme does not have parts such as propons main gear, front axle differential, the layout of power take-off shaft before not influencing.
Description of drawings:
Fig. 1 is the scheme drawing of front wheel assist tractor driving device.
Fig. 2 is a front wheel assist tractor driving device lateral plan.
Fig. 3 is the back axle running part of front wheel assist tractor driving device.
Fig. 4 is the side bevel drive assembly figure in the front wheel assist tractor driving device.
Fig. 5 is the final drive assembly figure of twin-stage finishing bevel gear cuter formula propons in the front wheel assist tractor driving device.Fig. 6 is Fig. 5 A-A rotation.
(1) is front driving wheel among the figure.(2) be the driven wheel of differential of secondary bevel drive, be fixed on the wheel shaft of front driving wheel (1).(3) be the drive bevel gear of secondary bevel drive, be fixed on the vertical shaft (22), mesh with part (1).(4) be the driven wheel of differential of one-level bevel drive, be fixed on the vertical shaft (22).(5) be the drive bevel gear of one-level bevel drive, mesh with part (4).Drive bevel gear of secondary bevel drive (3) and driven wheel of differential (2), each is loaded on drive bevel gear of one-level bevel drive (5) and driven wheel of differential (4) respectively in secondary finishing bevel gear cuter housing (24) and the one-level finishing bevel gear cuter housing (21).(6) for the transmission shaft of band universal-joint, two, connect the side bevel drive of back axle both sides and the twin-stage bevel drive of propons both sides respectively.(7) be the driven wheel of differential of side bevel drive, (9) are and the drive bevel gear of (7) ingear side bevel drive, totally two pairs, place the back axle both sides respectively.(8) be power-transfer clutch, can be contained in back axle to the propons drive path on certain link, (8 ') are clutch slipper yoke, (8 ") are from bearing, and (8 " ') are spring, for power-transfer clutch (8) in conjunction with using.(10) be the semiaxis housing.(11) be the rear drive opinion.(12) be rear-axle differential, be contained in the rear axle housing body.(13) be drg.(14) be the final transmission of back axle.(15) be the rear-axle differential semiaxis, left and right two, place in the semiaxis housing (10).(16) be the back axle main gear, give rear-axle differential (12) with transmission of power, (17) be front axle, (18) be rear drive wheel shaft, (19) be quill drive, sky is enclosed within on the rear-axle differential semiaxis (15), only is subjected to moment of torsion not to be subjected to moment of flexure for making rear-axle differential semiaxis (15), and the drive bevel gear of side bevel drive (9) is supported on two bearings by quill drive (19).(20) be joint yoke, a mouth that is loaded on the driven wheel of differential (7) of side bevel drive, another is loaded on the input end of the drive bevel gear (5) of one-level bevel drive.(21) be one-level finishing bevel gear cuter housing, be contained in an end of vertical shaft (22), the one-level bevel drive places in this housing.(22) be vertical shaft.(23) be spindle arm.(24) be secondary bevel drive housing, the secondary bevel drive places in this housing.(25) be sleeve pipe, fixing with front axle (17), vertical shaft (22) is loaded in it.
Claims (3)
1, front wheel assist tractor two drivings device mainly comprise master clutch, change speed gear box, the back axle main gear, rear-axle differential, the final transmission of back axle, transmission shaft, the final transmission of propons, the final transmission of said propons is the final transmission of twin-stage finishing bevel gear cuter formula propons, it mainly comprises vertical shaft (22), the one-level bevel drive, the secondary bevel drive, the one-level bevel drive is made up of the initiative taper tooth defeated (5) of intermeshing one-level bevel drive and the driven wheel of differential (4) of one-level bevel drive, the secondary bevel drive is made up of the drive bevel gear (3) of intermeshing secondary bevel drive and the driven wheel of differential (2) of secondary bevel drive, one-level bevel drive and secondary bevel drive place respectively in one-level bevel drive housing (21) and the secondary bevel drive housing (24), vertical shaft (22) is sleeved in the sleeve pipe of fixing with front axle (1) (25), one-level bevel drive finishing bevel gear cuter (5) connects by the transmission shaft (6) of joint yoke (20) with the band universal-joint, the driven wheel of differential of secondary bevel drive (2) is fixed on the wheel shaft of front driving wheel (1), it is characterized in that on the rear-axle differential semiaxis (15) of rear-axle differential (12) both sides, respectively being equipped with a pair of intermeshing side bevel drive, wherein the drive bevel gear of side bevel drive (9) is driven by rear-axle differential semiaxis (15), the mouth of the driven wheel of differential of side bevel drive (7) is given transmission of power by the transmission shaft (6) of band universal-joint the final transmission of twin-stage finishing bevel gear cuter formula propons of both sides, pass to front driving wheel (1) again, on above transmission road, be provided with power-transfer clutch (8).
2, front wheel assist tractor according to claim 1 both sides driving device, it is characterized in that the drive bevel gear (9) of said side bevel drive and the driven wheel of differential (7) of side bevel drive can be contained in the rear axle shaft housing (10), also can be provided with housing separately.
3, front wheel assist tractor according to claim 1 and 2 both sides driving device, the input end of drive bevel gear (5) that it is characterized in that said one-level bevel drive is towards rear tractor, and the height of the transmission shaft (6) of band universal-joint turns to and exceeds not influence front driving wheel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91204989 CN2090787U (en) | 1991-03-29 | 1991-03-29 | Two-side transmission device for variant four-wheel driving tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91204989 CN2090787U (en) | 1991-03-29 | 1991-03-29 | Two-side transmission device for variant four-wheel driving tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2090787U true CN2090787U (en) | 1991-12-18 |
Family
ID=4914945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91204989 Withdrawn CN2090787U (en) | 1991-03-29 | 1991-03-29 | Two-side transmission device for variant four-wheel driving tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2090787U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315668C (en) * | 2004-03-22 | 2007-05-16 | 株式会社久保田 | Transmission system for tractor |
| CN104723869A (en) * | 2015-03-20 | 2015-06-24 | 张福建 | Novel power transmitting device of agricultural automobile |
| CN108583275A (en) * | 2018-03-29 | 2018-09-28 | 厦门理工学院 | A kind of Double-axis transmission automobile |
-
1991
- 1991-03-29 CN CN 91204989 patent/CN2090787U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315668C (en) * | 2004-03-22 | 2007-05-16 | 株式会社久保田 | Transmission system for tractor |
| CN104723869A (en) * | 2015-03-20 | 2015-06-24 | 张福建 | Novel power transmitting device of agricultural automobile |
| CN108583275A (en) * | 2018-03-29 | 2018-09-28 | 厦门理工学院 | A kind of Double-axis transmission automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |