CN201659887U - Differential driving device for ride-on lawnmower - Google Patents
Differential driving device for ride-on lawnmower Download PDFInfo
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- CN201659887U CN201659887U CN2010201272763U CN201020127276U CN201659887U CN 201659887 U CN201659887 U CN 201659887U CN 2010201272763 U CN2010201272763 U CN 2010201272763U CN 201020127276 U CN201020127276 U CN 201020127276U CN 201659887 U CN201659887 U CN 201659887U
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Abstract
The utility model discloses a differential driving device for a ride-on lawnmower, which is characterized in that a differential mechanism is arranged between a left wheel and a left shaft, and a right wheel and a right shaft in bilateral symmetry; the differential mechanism comprises a planetary carrier and a rack wheel integrally fixed with the planetary carrier, wherein a pair of mutually-meshed output gears and a pair of planetary gears connected in series by a fulcrum pin are arranged in the planetary carrier, the differential mechanism adopts a motor as the power source, the power output of the motor drives the differential mechanism to rotate through a speed reduction mechanism, and the power motor, the speed reduction mechanism and the differential mechanism are integrally mounted in a machine casing and a cover fixed with each other. When wheels run linearly, the rotational speed of the left and right wheel is equal to the rotational speed of the planetary carrier, the planetary gears revolve around without rotating, the rotational speed of the wheels on the inner and outer sides is identical, when the lawnmower turns, the planetary gears are forced to rotate and generate differential speed, so the lawnmower is ensured to turn smoothly in smaller turning radius and avoid the turnover situation. The differential driving device for the ride-on lawnmower has simple mechanism, compact structure, flexible mowing, safe and reliable driving.
Description
Technical field
The utility model 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 at less turn radius, improve the alerting ability 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 wheel revolution, but not rotation, when vehicle when turning to the left or to the right, the state of equilibrium during linear running is destroyed, force planetary wheel 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 diff to be set, but the driving power of this technical scheme is to adopt engine petrol, therefore direction reverser and brake disc need be set, and the engine and the box of tricks that adopt are that engine petrol 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 utility model is to overcome the defective of prior art and provides a kind of and is power with the motor and power motor and differentia transmission integrated, mechanism simplifying, compact conformation is mowed flexibly the differential drive device of safe riding lawn machine.
Goal of the invention of the present utility model 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 speed reduction gearing, it is characterized in that:
A, described box of tricks have a pinion carrier, in pinion carrier, be provided with intermeshing a pair of output gear and a pair of planetary wheel of contacting mutually with backing pin, a pair of output gear is in transmission connection left and right respectively, with the big gear wheel that pinion carrier is fixed as one, connect a pair of planetary backing pin and be embedded in the big gear wheel groove;
B, described engine are hard-wired motors;
C, described motor, speed reduction gearing and box of tricks be integrated being installed in the casing and cover that fixes all.
Described speed reduction gearing directly carries out the one-level deceleration transmission with the big gear wheel engagement by generator shaft gear or is meshed through duplex reducing gear and big 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 utility model 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 speed reduction gearing, make wheel when straight ahead, a left side, right wheel and planetary wheel rotating speed equate, and planetary wheel revolves round the sun and not rotation, wheel is when turning, force planetary wheel 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 direction reverser and brake disc, and with power motor, speed reduction gearing, 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 the utility model structural representation.
Fig. 2 is the structure principle chart (upward view of Fig. 1) during differential not.
Structure principle chart when Fig. 3 is differential.
The specific embodiment
Below in conjunction with above-mentioned accompanying drawing the utility model embodiment 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 pinion carrier 6, pinion carrier is two semi-synthetic wheel carriers, in pinion carrier, be provided with intermeshing a pair of output gear 7 and a pair of planetary wheel 8 of contacting mutually with backing pin 9, described backing pin two ends are embedded in the groove of big gear wheel 5, rotate synchronously with big 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 big gear wheel 5 is fixed as one with two semi-synthetic pinion carriers 6 simultaneously and does rotation synchronously, like this, the rotation of big gear wheel drives pinion carrier and planetary wheel and then the rotation of drive output gear, makes to connect left side axle, revolver on the right axle, right wheel forms differential.Planetary wheel 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 speed reduction gearing, and motor, speed reduction gearing 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 speed reduction gearing present embodiment adopts double reduction, realizes that by the engagement of generator shaft gear 3 through duplex reducing gear 4 and big gear wheel 5 generator shaft gear can be helical wheel or straight gear, and is good with helical wheel, and its driving torque is big, stable drive.
The principle of work of box of tricks such as Fig. 2, shown in Figure 3, wheel are when linear running, and it is equal with the pinion carrier rotating speed that take turns on revolver, the right side, and planetary wheel 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 state of equilibrium of linear running, force planetary wheel 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 direction reverser of former technology, made mechanism simplifying, compact conformation, it is more flexible to mow, and drives safer.
The utility model 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 speed reduction gearing, it is characterized in that:
A, described box of tricks have a pinion carrier (6), in pinion carrier, be provided with intermeshing a pair of output gear (7) and a pair of planetary wheel (8) with backing pin (9) polyphone, a pair of output gear is in transmission connection left and right respectively, with the big gear wheel (5) that pinion carrier is fixed as one, the backing pin (9) that connects a pair of planetary wheel (8) is embedded in big gear wheel (5) groove;
B, described engine are hard-wired motor (2);
C, described motor (2), speed reduction gearing 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 speed reduction gearing directly carries out the one-level deceleration transmission with big gear wheel (5) engagement by generator shaft gear (3) or is meshed through duplex reducing gear (4) and big 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 |
|---|---|---|---|
| CN2010201272763U CN201659887U (en) | 2010-03-10 | 2010-03-10 | Differential driving device for ride-on lawnmower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201272763U CN201659887U (en) | 2010-03-10 | 2010-03-10 | Differential driving device for ride-on lawnmower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201659887U true CN201659887U (en) | 2010-12-01 |
Family
ID=43230300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201272763U Expired - Lifetime CN201659887U (en) | 2010-03-10 | 2010-03-10 | Differential driving device for ride-on lawnmower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201659887U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785390A (en) * | 2010-03-10 | 2010-07-28 | 宁波市德霖机械有限公司 | Differential driving device for riding lawn machine |
| CN106888672A (en) * | 2017-03-06 | 2017-06-27 | 李文新 | A kind of portable mowing machine for municipal Garden Engineering |
-
2010
- 2010-03-10 CN CN2010201272763U patent/CN201659887U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785390A (en) * | 2010-03-10 | 2010-07-28 | 宁波市德霖机械有限公司 | Differential driving device for riding lawn machine |
| CN106888672A (en) * | 2017-03-06 | 2017-06-27 | 李文新 | A kind of portable mowing machine for municipal Garden Engineering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101201 |