CN101475030A - Apparatus for realizing half-track tractor four drive - Google Patents
Apparatus for realizing half-track tractor four drive Download PDFInfo
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- CN101475030A CN101475030A CNA2009100767934A CN200910076793A CN101475030A CN 101475030 A CN101475030 A CN 101475030A CN A2009100767934 A CNA2009100767934 A CN A2009100767934A CN 200910076793 A CN200910076793 A CN 200910076793A CN 101475030 A CN101475030 A CN 101475030A
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Abstract
The invention provides a device for realizing four-wheel drive of a half-track tractor. Based on the half-track tractor, the device comprises a speed reducer with a reduction gearbox. The reduction gearbox can be rotatably and fixedly provided with a power output shaft and a power input shaft inside; and a speed reducing mechanism is arranged between the power output shaft and the power input shaft to make the rotating speed of the power output shaft lower than the rotating speed of the power input shaft. When the device is used, the power input shaft is connected with front wheel shafts of the prior four-wheel drive tractor, and the power output shaft is connected with front wheels of the prior four-wheel drive tractor. Thus, the front wheels can get a rotating speed which is matched with the rotating speed of the smaller drive wheel of rear wheel shafts of the half-track tractor through the prior design of speed reduction ratio of the speed reducing mechanism so as to realize that a gear ratio of walking driving wheels to the front wheels of the half-track tractor is same as the prior gear ratio of a roller tractor and realize four-wheel drive of the half-track tractor.
Description
Technical field
The present invention relates to a kind of running gear of trac., especially a kind of halftrack tractor four device driven that realize.
Background technology
In the paddy field, when wetland carries out mechanical work, because soil moisture content is higher, wheel-tire tractor maybe can not descend ground, or form darker rut during operation, also often skid, problem such as wheel clogging, cause the effect of trac. to be difficult to performance, simultaneously also havoc the physical structure of soil.In order to address the above problem, for big-powered tractor, unique Running System is generally adopted in the home and abroad, and coupling overall track or the forward and backward rubber belt track that mates respectively, solves the problem that wheel-tire tractor occurs.Such track type tractor can not be installed tire and carry out hauling operation, and therefore the trac. service efficiency of this Running System is lower.To medium-sized wheel-tire tractor, particularly 50～80 horsepowers of section trac.s in the paddy field, the rare research of the problems referred to above that exists of wetland operation.Particularly use the rubber belt track transmission for the rear portion of trac., front-wheel still uses the tire transmission and realizes the rare so far research of trac. of f-w-d.
The halftrack tractor running gear of MAE Northern's development and a kind of running gear of trac. are only arranged at present, and the described preceding wheel apparatus bonded assembly in this running gear remains wheel type traveling mechanism.
Described back-wheel drive device is a cterpillar drive, as shown in Figure 1, 2, it comprises mobile roof support 01, drive wheel 02, some caterpillar wheels 03, track adjusting wheel 04, endless track 05 and tension wheel mechanism 06, on this mobile roof support 01, set firmly described caterpillar wheel and track adjusting wheel rotationally, be fixed on this mobile roof support between tension wheel in the described tension wheel mechanism and the described mobile roof support with having motion nargin, between tension wheel and this mobile roof support, take up member be set.Described endless track is set on described drive wheel, track adjusting wheel, caterpillar wheel and the tension wheel, and described drive wheel is meshed with endless track and constitutes the sprocket-type integrated structure.This mobile roof support be provided with trac. on the connecting element connection structure connecting, described connecting element is the rear drive sprocket shaft housing on the trac. or directly is exactly trac. rear drive wheel shaft 33, therefore, this mobile roof support is to be fixed on the back shaft housing of trac. or the rear drive wheel shaft.
Problem such as these two kinds of running gears have solved that wheel-tire tractor skids, wheel clogging, drawbar efficiency are low also has the interchangeability with tire, can effectively improve the trac. degree of utilization.But under the prerequisite that does not change the inner drive mechanism of trac., these two kinds of running gears can not be realized the f-w-d of trac., can not realize that promptly the trac. 4 wheel driven is moving.The running wheel diameter that mainly is these two kinds of running gears causes the original forward and backward speed ratio of trac. to change less than original rear tyre diameter.Yet owing to there is not f-w-d, halftrack tractor is in the paddy field, when the wetland operation is turned, and difficulty, front-wheel sideslip problem can appear turning in front-wheel.
Summary of the invention
The objective of the invention is to address the above problem, design the front-wheel transmission system that a kind of and above-mentioned two kinds of halftrack tractor running gears are complementary, realize the original front and back wheel revolution ratio of revolution ratio coupling wheel-tire tractor of front wheel rotation speed and halftrack tractor running wheel, thereby realize the four wheel drive of halftrack tractor, improve the drawbar efficiency of trac..
Another object of the present invention is to provide a kind of realization halftrack tractor four device driven.
The object of the present invention is achieved like this:
A kind of realization halftrack tractor four device driven, it comprises rear drive wheel shaft and front wheel spindle, with described rear drive wheel shaft bonded assembly be a cterpillar drive, it comprises mobile roof support, drive wheel, some caterpillar wheels, track adjusting wheel, endless track and tension wheel mechanism, on this mobile roof support, set firmly described caterpillar wheel and track adjusting wheel rotationally, be fixed on this mobile roof support between tension wheel in the described tension wheel mechanism and the described mobile roof support with having motion nargin, between tension wheel and this mobile roof support, take up member is set, described endless track is set in described drive wheel, track adjusting wheel, on caterpillar wheel and the tension wheel, described drive wheel is meshed with endless track and constitutes the sprocket-type integrated structure; This mobile roof support be provided with trac. on the connecting element connection structure connecting, described connecting element is the back shaft housing of trac. or directly is exactly the trac. rear drive wheel shaft, and this mobile roof support is fixed on the shell of rear drive wheel shaft on the trac. or the rear drive wheel shaft by described connection structure.And the described drive wheel in a kind of running gear of trac. directly is connected with trac. walking rear drive wheel shaft;
With described front wheel spindle bonded assembly be front vehicle wheel, between described front wheel spindle and front vehicle wheel, be connected a supporting device, it comprises a retarder, it has a drop-gear box, set firmly a power input shaft and a takeoff output dish in this drop-gear box rotationally, between this power input shaft and takeoff output dish, be provided with a speed reduction gearing, make takeoff output dish rotating speed be lower than described power input shaft.Described power input shaft connects the front wheel spindle on the existing four-wheel drive tractor, and described takeoff output dish connects the described front vehicle wheel on the existing four-wheel drive tractor.Thus, can make front-wheel obtain the rotating speed that the drive wheel with halftrack tractor is complementary, realize the four wheel drive of halftrack tractor.
A kind of front vehicle wheel transmission system that is complementary with the halftrack tractor running gear that be used for the moving trac. of 4 wheel driven, it comprises a retarder, it has a drop-gear box, set firmly a power input shaft in this drop-gear box rotationally and a takeoff output dish is provided with a speed reduction gearing between this power input shaft and takeoff output dish, make takeoff output dish rotating speed be lower than described power input shaft.Described power input shaft connects the front wheel spindle on the existing four-wheel drive tractor, and described takeoff output dish connects the described front vehicle wheel on the existing four-wheel drive tractor.
Convenient when making that this retarder is connected with front vehicle wheel with the trac. front wheel spindle that is provided with on same axis, accurately and for original trac. do not do change basically, the described power input shaft in the described retarder and the central axes of takeoff output dish.
In order to make described retarder fixing easily on trac., on the outer wall of drop-gear box, set firmly the connecting panel structure, can make retarder fixing on the propons of trac. easily by this connecting panel structure.
The advantage of realization halftrack tractor four device driven provided by the invention is: this device has adopted the two-stage transmission, has realized speed changing function, and has guaranteed the central lines of trac. front wheel spindle and front-wheel, thereby has guaranteed the whole machine balancing of trac..This device adopts an independent drop-gear box design, has guaranteed the sealing property of actuating device, and has been connected very convenient with front-wheel with the drive axle of trac..The more important thing is do not changing under the inner structure situation of wheel-tire tractor transmission system, realized that the 4 wheel driven of halftrack tractor is moving, solved the difficult problem that halftrack tractor turns to difficulty, front-wheel to break away in the paddy field, during the wetland operation.
The invention will be further described below by accompanying drawing.
Description of drawings
Fig. 1 is the connection structure scheme drawing of half-track and rear drive wheel shaft on the rear drive wheel shaft in the device of realization halftrack tractor four wheel drive provided by the invention;
Fig. 2 is that the A of Fig. 1 is to structural representation;
Fig. 3 is the main sectional structure scheme drawing of bonded assembly retarder on the front vehicle wheel in the device of realization halftrack tractor four wheel drive provided by the invention;
Fig. 4 is the left TV structure scheme drawing of bonded assembly retarder on the front vehicle wheel in the device of realization halftrack tractor four wheel drive provided by the invention.
Major part wherein has; Drop-gear box 1, miniature gears 4, power input shaft 10, input bearing cap shim 11, upper junction plate 20, lower connecting plate 21, bearing stifle 22, big gear wheel 25, driven gear 27, tween drive shaft 31, terminal big gear wheel 32, takeoff output dish 37 major parts are formed (Fig. 3, shown in Figure 4).
The specific embodiment
The device of realization halftrack tractor four wheel drive provided by the invention comprises front-wheel drive system and back-wheel drive mechanism, wherein the back-wheel drive device is a cterpillar drive, as Fig. 1, shown in 2, it comprises mobile roof support 01, drive wheel 02, some caterpillar wheels 03, track adjusting wheel 04, endless track 05 and tension wheel mechanism 06, on this mobile roof support 01, set firmly described caterpillar wheel and track adjusting wheel rotationally, be fixed on this mobile roof support between tension wheel in the described tension wheel mechanism and the described mobile roof support with having motion nargin, between tension wheel and this mobile roof support, take up member be set.Described endless track is set on described drive wheel, track adjusting wheel, caterpillar wheel and the tension wheel, and described drive wheel is meshed with endless track and constitutes the sprocket-type integrated structure.This mobile roof support be provided with trac. on the connecting element connection structure connecting, described connecting element is the rear drive sprocket shaft housing on the trac. or directly is exactly trac. rear drive wheel shaft 33, therefore, this mobile roof support is fixed on the back shaft housing or rear drive wheel shaft of trac..
The front-wheel drive bonded assembly remains wheel type traveling mechanism.On the basis of above-mentioned halftrack tractor, with trac. before driving wheel shaft bonded assembly be front vehicle wheel, between described front wheel spindle and front vehicle wheel, be connected a speed reduction gearing.As Fig. 3, shown in 4 with the right front wheel shaft bonded assembly of trac. drop-gear box mechanism be example, it comprises a drop-gear box 1, set firmly a power input shaft 10 and a takeoff output dish 37 in this drop-gear box rotationally, between this power input shaft 10 and takeoff output dish 37, be provided with a speed reduction gearing, it is a two-stage gear reduction, power input shaft 10 is bearing on drop-gear box 1 wall by bearing 5, fixing a miniature gears 4 by flat key 38 and bearing 5 and another bearing 39 of being fixed on the power input shaft 10 on the power input shaft 10, a big gear wheel 25 and a driven gear 27 that one tween drive shaft 31 fixedly is solidly fixed by four bearings 28 and flat key 26, this big gear wheel 25 combine with miniature gears 4 and constitute the one-level deceleration.Sheathed bearing 39 and 41 on power input shaft 10, sheathed therebetween axle sleeve 40 at interval, the sheathed terminal big gear wheel 32 of fixing on bearing 39 and 41, it is meshed with driven gear 27 on the tween drive shaft, constitutes second stage deceleration.Be provided with bearing 34 between this terminal big gear wheel 32 and the drop-gear box 1.On the end face of terminal big gear wheel 32,, make it to rotate synchronously with the terminal big gear wheel by the bolt 16 takeoff output dish 37 that is connected.On takeoff output dish 37, can connect the trac. front-wheel by bolt 46.Do the right side axial restraint of bearing and miniature gears etc. at the end that is positioned at drop-gear box of power input shaft 10 by spindle nose pad 42, nut 43, it passes on left with drop-gear box and carries out axial restraint with the fixing input bearing cap shim 11 of screw 8.The two ends of tween drive shaft also are respectively arranged with bearing stifle 22 and 30 axial restraints big gear wheel and the driven gear on it.Two bearing stifles are fixed on the drop-gear box by bolt 13,29.
In order to guarantee the sealing of drop-gear box drop-gear box, between input bearing cap shim 11 on the drop-gear box and power input shaft 10, seal ring 7 is set; Between input bearing cap shim 11 and the drop-gear box 1 seal ring 6 is set; Between terminal big gear wheel 32 and output bearing cap shim 35, seal ring 36 is set, between output bearing cap shim 35 and the drop-gear box seal ring 33 is set; Between left side output terminal pad 37 and terminal big gear wheel 32, seal ring 45 is set; Seal ring 23 is set between tween drive shaft 31 and drop-gear box;
In use, described power input shaft 10 connects the front wheel spindle 44 that has now on the four-wheel drive tractor by bolt 12, and described takeoff output dish is by the front-wheel on the existing four-wheel drive tractor of bolt 46 connections.Thus, can make front-wheel obtain the rotating speed that the drive wheel rotating speed with halftrack tractor is complementary, realize that the 4 wheel driven of halftrack tractor is moving.
Concrete course of action is as follows: directly power input shaft 10 is connected with the front wheel spindle of trac. by bolt 12, the upper junction plate 20 of driving device is connected with the propons of trac. by bolt 14, lower connecting plate 21 then links together upper junction plate 20 and drop-gear box 1, can prevent that whole actuating device from rotating, concrete structure is, last lower connecting plate is connected by bolt 16a, and lower connecting plate is connected by bolt 13 and drop-gear box and bearing stifle.Front tyre is realized being connected with the takeoff output dish 37 of transmission drop-gear box by bolt 46.Through this driving device trac. forerunner power is directly passed to front-wheel, makes the running wheel rotating speed coupling of front wheel rotation speed and trac., realize that the 4 wheel driven of trac. is moving.Because this actuating device adopts a transmission drop-gear box to realize the transmission of power, has guaranteed the independence of whole device simultaneously.
The concrete type of drive of this actuating device is: at first power input shaft 10 because its load is bigger, adopts three different bearings 5,39,41 to support in different position (see figure 3)s as the propulsion source of transmission drop-gear box.The horizontal and vertical location of realizing gear 4 respectively by the shaft shoulder and the flat key 38 of power input shaft 10.Tween drive shaft 31 supports by four identical bearing 28 at both endss as subordinate's transmission of transmission drop-gear box.Two gears 25 that flat key 26 will vary in size and 27 are positioned on the tween drive shaft 31, and two gears rotate synchronously, and guarantee that gear 25 and gear 4 are meshing with each other.Terminal big gear wheel 32 realizes axial location by three bearings 39,40,34, and terminal big gear wheel 32 is meshed with gear 27, and takeoff output dish 37 passes through bolt 14 direct connections on terminal big gear wheel 32.Therefore the inside type of drive of transmission drop-gear box is: input shaft 10 driven gears 4 rotate, gear 4 and driven wheel 25 coaxial rotation, and driven gear 27 rotates.Gear 27 drives extreme gear 32, drives front-wheel by output terminal pad 37 and rotates.This type of drive can guarantee the right alignment of front-wheel and trac. front wheel spindle.
Because actuating device has adopted the drop-gear box design, whole drive disk assembly is worked in drop-gear box 1, thereby has guaranteed the sealing property of drive disk assembly.Adopt seal ring 7 tightly to be enclosed within on the input shaft 10 at the left end of transmission input shaft 10, and will import bearing cap shim 11 by bolt 8 and be fixed on the drop-gear box 1.Right-hand member at input shaft adopts the mode identical with left end to seal, and adopts seal ring 36 and output bearing cap shim 35 to seal, and uses seal ring 45 and left side output terminal pad 37 further to seal.For the sealing of tween drive shaft 31, side seal is carried out with seal ring 23 and bearing stifle 22, bearing stifle 30 respectively in two ends, the left and right sides.
Claims (8)
1. realize halftrack tractor four device driven for one kind, it comprises rear drive wheel shaft and front wheel spindle, it is characterized in that, with described rear drive wheel shaft bonded assembly be a cterpillar drive, it comprises mobile roof support, drive wheel, some caterpillar wheels, track adjusting wheel, endless track and tension wheel mechanism, on this mobile roof support, set firmly described caterpillar wheel and track adjusting wheel rotationally, be fixed on this mobile roof support between tension wheel in the described tension wheel mechanism and the described mobile roof support with having motion nargin, between tension wheel and this mobile roof support, take up member is set, described endless track is set in described drive wheel, track adjusting wheel, on caterpillar wheel and the tension wheel, described drive wheel is meshed with endless track and constitutes the sprocket-type integrated structure; This mobile roof support be provided with trac. on the connecting element connection structure connecting, described connecting element is the rear drive sprocket shaft housing on the trac. or directly is exactly the trac. rear drive wheel shaft that this mobile roof support is fixed on trac. rear drive sprocket shaft housing or the rear drive wheel shaft by described connection structure; And the described drive wheel in the cterpillar drive directly is connected with the trac. rear drive wheel shaft;
With trac. front wheel spindle bonded assembly be front vehicle wheel, between described front wheel spindle and front vehicle wheel, be connected a supporting device, it comprises a retarder, it has a drop-gear box, set firmly a power input shaft and a takeoff output dish in this drop-gear box rotationally, between this power input shaft and takeoff output dish, be provided with a speed reduction gearing, make the rotating speed of power take-off shaft be lower than described power input disc; Described power input shaft connects the front wheel spindle on the existing four-wheel drive tractor, and described takeoff output dish connects the front-wheel on the existing four-wheel drive tractor.
2. the device of realization halftrack tractor four wheel drive according to claim 1 is characterized in that, described power input shaft in the described retarder and the dead in line of takeoff output disk center.
3. realization halftrack tractor four device driven according to claim 1 is characterized in that, set firmly the connecting panel structure on the shell of described retarder, can make drop-gear box fixing on the propons of trac. easily by this connecting panel structure.
4. the device of realization halftrack tractor four wheel drive according to claim 3, it is characterized in that, described connecting panel structure is: two covers about comprising, every cover connecting panel structure comprises upper junction plate and lower connecting plate, described lower connecting plate links together described connection upper junction plate and described drop-gear box, on the described upper junction plate bolt is set, is used for being connected with the propons of trac..
5. front vehicle wheel transmission system that is complementary with the halftrack tractor running gear that be used for the moving trac. of 4 wheel driven, it is characterized in that: comprise a retarder, it has a drop-gear box, set firmly a power input shaft in this drop-gear box rotationally and a takeoff output dish is provided with a speed reduction gearing between this power input shaft and takeoff output dish, make takeoff output dish rotating speed be lower than described power input shaft; Described power input shaft connects the front wheel spindle on the existing four-wheel drive tractor, and described takeoff output dish connects the described front vehicle wheel on the existing four-wheel drive tractor.
6. front vehicle wheel transmission system according to claim 5 is characterized in that: described power input shaft in the described retarder and the dead in line of takeoff output disk center.
7. front vehicle wheel transmission system according to claim 5 is characterized in that, sets firmly the connecting panel structure on the shell of described retarder, can make drop-gear box fixing on the propons of trac. easily by this connecting panel structure.
8. front vehicle wheel transmission system according to claim 7, it is characterized in that, described connecting panel structure is: two covers about comprising, every cover connecting panel structure comprises upper junction plate and lower connecting plate, described lower connecting plate links together described connection upper junction plate and described drop-gear box, on the described upper junction plate bolt is set, is used for being connected with the propons of trac..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100767934A CN101475030A (en) | 2009-01-21 | 2009-01-21 | Apparatus for realizing half-track tractor four drive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100767934A CN101475030A (en) | 2009-01-21 | 2009-01-21 | Apparatus for realizing half-track tractor four drive |
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| Publication Number | Publication Date |
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| CN101475030A true CN101475030A (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009100767934A Pending CN101475030A (en) | 2009-01-21 | 2009-01-21 | Apparatus for realizing half-track tractor four drive |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926751A (en) * | 2012-11-19 | 2013-02-13 | 北方重工集团有限公司 | Split four-wheel drive traveling mechanism for heading machine |
-
2009
- 2009-01-21 CN CNA2009100767934A patent/CN101475030A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926751A (en) * | 2012-11-19 | 2013-02-13 | 北方重工集团有限公司 | Split four-wheel drive traveling mechanism for heading machine |
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Open date: 20090708 |