CN101785390A - Differential driving device for riding lawn machine - Google Patents
Differential driving device for riding lawn machine Download PDFInfo
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- CN101785390A CN101785390A CN 201010121086 CN201010121086A CN101785390A CN 101785390 A CN101785390 A CN 101785390A CN 201010121086 CN201010121086 CN 201010121086 CN 201010121086 A CN201010121086 A CN 201010121086A CN 101785390 A CN101785390 A CN 101785390A
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Abstract
The invention discloses a differential driving device for a riding lawn machine. A differential mechanism is arranged between a left wheel and a left shaft and a right wheel and a right shaft which are symmetrical. The differential mechanism comprises a planet carrier; and a pair of output gears which is meshed with each other, a pair of planet gears which is serially connected through a support pin, and a gearwheel which is fixed with the planet carrier into a whole are arranged in the planet carrier. The differential mechanism is powered by a motor, and the motor output drives the differential mechanism to rotate through a speed-reducing mechanism; and the power motor, the speed-reducing mechanism and the differential mechanism are all integrated to be arranged in a shell and a cover which are fixed mutually. When wheels run linearly, the rotating speed of the left and right wheels is equal to that of the planet carrier, the planet gears do not rotate but revolve, and the rotating speed of the inside and outside wheels is the same. When the wheels turn a corner, the planet gears are forced to rotate so as to generate the differential, so the vehicle can smoothly turn at a smaller turn radius and does not turn over. The differential driving device for the riding lawn machine has the characteristics of simple mechanism, compact structure, flexible mowing, safe and reliable drive, and the like.
Description
Technical field
The present invention relates to a kind of mowing machinery, especially a kind of differential drive device of riding lawn machine.
Background technology
Riding lawn machine, in order to make vehicle be able to turn to the left or to the right smoothly, can finish smoothly during in less radius of turn, improve the flexibility of cutting, therefore on the propons of lawn machine or back axle, differential drive mechanism is set for example round flowerpot or trees turning cutting work.The lawn machine that is provided with box of tricks is when straight ahead is moved, the left and right wheel with planetary rotating speed equates, the planetary gear revolution, but not rotation, when vehicle when turning to the left or to the right, the poised state during linear running is destroyed, force planetary gear to produce rotation, make the outboard wheels faster rotational speed, the inboard wheel rotating speed lowers, and vehicle just can pass through than tight turn radius the time smoothly smoothly.The patent No. of Chinese patent literature bulletin is 00245605.2 " self-propelled mower driving rear axle ", the technical scheme of its disclosure is exactly between two semiaxis of the rear wheel of back axle differential mechanism to be set, but the driving power of this technical scheme is to adopt petrol engine, therefore changement and brake disc need be set, and the engine and the box of tricks that adopt are that petrol engine is arranged on the split-type structural away from box of tricks, drive path is long, cause mechanism's complexity not compact, it is dumb to mow, poor stability.
Summary of the invention
Goal of the invention of the present invention is to overcome the defective of prior art and provides a kind of and be power with the motor and power motor and differential gearing integrated, mechanism simplifying, and compact conformation is mowed flexibly, the differential drive device of safe riding lawn machine.
Goal of the invention of the present invention is achieved through the following technical solutions:
A kind of differential drive device of riding lawn machine, comprise left and right revolver and the right wheel that is symmetricly set on the machine bridge of lawn, the outer end of left side axle and right axle is in transmission connection with revolver, right wheel respectively, the inner is in transmission connection with box of tricks respectively, box of tricks connects engine through reducing gear, it is characterized in that:
A, described box of tricks have a planet carrier, in planet carrier, be provided with intermeshing a pair of output gear and a pair of planetary gear of contacting mutually with backing pin, a pair of output gear is in transmission connection left and right respectively, with the gear wheel that planet carrier is fixed as one, connect a pair of planetary backing pin and be embedded in the gear wheel groove;
B, described engine are hard-wired motors;
C, described motor, reducing gear and box of tricks be integrated being installed in the casing and cover that fixes all.
Described reducing gear directly carries out the one-level deceleration transmission with the gear wheel engagement by generator shaft gear or is meshed through duplex reduction gearing and gear wheel by generator shaft gear carrying out the double reduction transmission.
Being in transmission connection of output gear in output gear in described left side axle and revolver, right axle and right wheel, left side axle and the box of tricks, the right side spool and the box of tricks is connected or the spline connection for flat key.
Compared with prior art, the present invention is on the left side of lawn machine, a right wheel and a left side, be provided with box of tricks between the right axle, this box of tricks is power with the motor, drive box of tricks through reducing gear, make wheel when straight ahead, a left side, right wheel and planetary gear rotating speed equate, and planetary gear revolves round the sun and not rotation, wheel is when turning, force planetary gear to produce rotation, in making, outboard wheels produces differential, the outboard wheels faster rotational speed, and the inboard wheel rotating speed lowers, vehicle can be turned than tight turn radius the time smoothly, the engine that the design adopts is a motor, and the rotating control that moves forward and backward and can utilize motor of vehicle is so saved changement and brake disc, and with power motor, reducing gear, box of tricks is integrated to be installed in the casing and cover that fixes, mechanism simplifying, compact conformation, it is more flexible to mow, and drive safety is higher.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structure principle chart (upward view of Fig. 1) during differential not.
Structure principle chart when Fig. 3 is differential.
Embodiment
Below in conjunction with above-mentioned accompanying drawing the embodiment of the invention is described in detail again.
As shown in Figure 1, the differential drive device of riding lawn machine, comprise revolver 12 and right wheel 13 on the machine bridge of lawn, left side axle 10 is connected with revolver 12 flat keys, right axle 11 is connected with right wheel 13 flat keys, between left side axle and right axle, be provided with box of tricks, described box of tricks has a planet carrier 6, planet carrier is two semi-synthetic wheel carriers, in planet carrier, be provided with intermeshing a pair of output gear 7 and a pair of planetary gear 8 of contacting mutually with backing pin 9, described backing pin two ends are embedded in the groove of gear wheel 5, rotate synchronously with gear wheel, described a pair of output gear 7 respectively with left side axle 10, right axle 11 splines connect, drive left side axle, natural pivot is moving, and gear wheel 5 is fixed as one with two semi-synthetic planet carriers 6 simultaneously and does rotation synchronously, like this, the rotation of gear wheel drives planet carrier and planetary gear and then the rotation of drive output gear, makes to connect left side axle, revolver on the right axle, right wheel forms differential.Planetary gear 8 and output gear 7 are bevel gear.
Box of tricks is a power with common electric machine 2, it by with the engagement transmitting rotary power of reducing gear, and motor, reducing gear and box of tricks are integrated to be fixed in the casing 1 and cover (not shown) that fixes, this casing and cover can be fixed on left side axle, the right side outer outer shaft, but do not rotate.The reducing gear present embodiment adopts double reduction, realizes that by the engagement of generator shaft gear 3 through duplex reduction gearing 4 and gear wheel 5 generator shaft gear can be helical gear or spur gear, and is good with helical gear, and its driving torque is big, stable drive.
The operation principle of box of tricks such as Fig. 2, shown in Figure 3, wheel are when linear running, and it is equal with the planet carrier rotating speed that take turns on revolver, the right side, and planetary gear is only done revolution but not rotation, and medial and lateral wheel (take turns on the revolver and the right side) rotating speed is equal, as shown in Figure 2; When wheel need do to turn operation, as bend to right, destroyed the poised state of linear running, force planetary gear to produce rotation, make outboard wheels (revolver) faster rotational speed, inboard wheel (right wheel) rotating speed lowers, vehicle is bent to right smoothly, as shown in Figure 3.So when the lawn machine can be turned during round flowerpot or trees operation smoothly, and than tight turn radius the time, can not overturn yet, improve drive safety, moving forward and backward directly of vehicle transfers control by motor positive and negative, saved the changement of former technology, made mechanism simplifying, compact conformation, it is more flexible to mow, and drives safer.
The present invention can be installed in lawn machine propons or back axle.
Claims (3)
1. the differential drive device of a riding lawn machine, comprise left and right revolver (12) and the right wheel (13) that is symmetricly set on the machine bridge of lawn, the outer end of left side axle (10) and right axle (11) is in transmission connection with revolver, right wheel respectively, the inner is in transmission connection with box of tricks respectively, box of tricks connects engine through reducing gear, it is characterized in that:
A, described box of tricks have a planet carrier (6), in planet carrier, be provided with intermeshing a pair of output gear (7) and a pair of planetary gear (8) with backing pin (9) polyphone, a pair of output gear is in transmission connection left and right respectively, with the gear wheel (5) that planet carrier is fixed as one, the backing pin (9) that connects a pair of planetary gear (8) is embedded in gear wheel (5) groove;
B, described engine are hard-wired motor (2);
C, described motor (2), reducing gear and box of tricks be integrated being installed in the casing (1) and cover that fixes all.
2. the differential drive device of riding lawn machine according to claim 1 is characterized in that described reducing gear directly carries out the one-level deceleration transmission with gear wheel (5) engagement by generator shaft gear (3) or is meshed through duplex reduction gearing (4) and gear wheel (5) by generator shaft gear (3) carrying out the double reduction transmission.
3. the differential drive device of riding lawn machine according to claim 1 and 2 is characterized in that being in transmission connection of output gear (7) in output gear (7), the right side spool (11) and the box of tricks in described left side axle (10) and revolver (12), right axle (11) and right wheel (13), left side axle (10) and the box of tricks is connected or the spline connection for flat key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010121086 CN101785390A (en) | 2010-03-10 | 2010-03-10 | Differential driving device for riding lawn machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010121086 CN101785390A (en) | 2010-03-10 | 2010-03-10 | Differential driving device for riding lawn machine |
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| Publication Number | Publication Date |
|---|---|
| CN101785390A true CN101785390A (en) | 2010-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010121086 Pending CN101785390A (en) | 2010-03-10 | 2010-03-10 | Differential driving device for riding lawn machine |
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| CN (1) | CN101785390A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109423778A (en) * | 2017-08-23 | 2019-03-05 | 拓卡奔马机电科技有限公司 | Sewing machine |
| CN109423782A (en) * | 2017-08-23 | 2019-03-05 | 拓卡奔马机电科技有限公司 | The string-hooking mechanism of sewing machine |
| CN109423779A (en) * | 2017-08-23 | 2019-03-05 | 拓卡奔马机电科技有限公司 | The thorn cloth Yarn taking-up mechanism of sewing machine |
| CN109423781A (en) * | 2017-08-23 | 2019-03-05 | 拓卡奔马机电科技有限公司 | The string-hooking mechanism of sewing machine |
| CN109423777A (en) * | 2017-08-23 | 2019-03-05 | 拓卡奔马机电科技有限公司 | The thorn cloth Yarn taking-up mechanism of sewing machine |
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| CN2442493Y (en) * | 2000-07-28 | 2001-08-15 | 山东黑豹股份有限公司 | Self-propelled four-wheel mower |
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2010
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| CN2442493Y (en) * | 2000-07-28 | 2001-08-15 | 山东黑豹股份有限公司 | Self-propelled four-wheel mower |
| JP4313081B2 (en) * | 2003-05-12 | 2009-08-12 | 本田技研工業株式会社 | Self-propelled electric work machine |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109423778A (en) * | 2017-08-23 | 2019-03-05 | 拓卡奔马机电科技有限公司 | Sewing machine |
| CN109423782A (en) * | 2017-08-23 | 2019-03-05 | 拓卡奔马机电科技有限公司 | The string-hooking mechanism of sewing machine |
| CN109423779A (en) * | 2017-08-23 | 2019-03-05 | 拓卡奔马机电科技有限公司 | The thorn cloth Yarn taking-up mechanism of sewing machine |
| CN109423781A (en) * | 2017-08-23 | 2019-03-05 | 拓卡奔马机电科技有限公司 | The string-hooking mechanism of sewing machine |
| CN109423777A (en) * | 2017-08-23 | 2019-03-05 | 拓卡奔马机电科技有限公司 | The thorn cloth Yarn taking-up mechanism of sewing machine |
| CN109423781B (en) * | 2017-08-23 | 2021-06-04 | 拓卡奔马机电科技有限公司 | Thread hooking mechanism of sewing machine |
| CN109423782B (en) * | 2017-08-23 | 2021-06-04 | 拓卡奔马机电科技有限公司 | Thread hooking mechanism of sewing machine |
| CN109423778B (en) * | 2017-08-23 | 2021-07-06 | 拓卡奔马机电科技有限公司 | Sewing machine |
| CN109423777B (en) * | 2017-08-23 | 2021-07-06 | 拓卡奔马机电科技有限公司 | Cloth-pricking and thread-taking-up mechanism of sewing machine |
| CN109423779B (en) * | 2017-08-23 | 2021-07-06 | 拓卡奔马机电科技有限公司 | Cloth-pricking and thread-taking-up mechanism of sewing machine |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100728 |