CN104081893A - Miniature cultivator - Google Patents
Miniature cultivator Download PDFInfo
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- CN104081893A CN104081893A CN201410321372.4A CN201410321372A CN104081893A CN 104081893 A CN104081893 A CN 104081893A CN 201410321372 A CN201410321372 A CN 201410321372A CN 104081893 A CN104081893 A CN 104081893A
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Abstract
The invention discloses a miniature cultivator. The miniature cultivator comprises a machine frame, an engine, a gearbox, a handlebar assembly and a rotary tillage operating mechanism, wherein the engine, the gearbox and the handlebar assembly are arranged on the machine frame. The rotary tillage operating mechanism comprises a power output shaft, a tool apron fixed onto the power output shaft and rotary tillage knives fixedly installed on the tool apron. The gearbox comprises a box body and a transmission speed reducing mechanism arranged in the box body. The miniature cultivator is characterized in that the transmission speed reducing mechanism comprises a gear engaging shaft fixedly provided with a poking fork, a power input shaft, an idle gear shaft, a transmission shaft, a power input wheel, a shifting gear, an idle gear, a transmission wheel and a chain wheel, wherein the power input wheel and the shifting gear are installed on the power input shaft, the idle gear is installed on the idle gear shaft and the transmission wheel and the chain wheel are installed on the transmission shaft. A duplicate gear is further arranged on the transmission shaft in a sleeved mode, and the duplicate gear comprises a reverse gear body and a small gear body. The miniature cultivator is provided with a gear reversing mechanism, therefore, the back-up action of the whole cultivator can be realized easily, the cultivation coverage is comprehensive and the service life is long.
Description
Technical field
The present invention relates to a kind of agricultural machinery, specifically, relate to a kind of small tillage machine.
Background technology
Small tillage machine is taking small diesel engine or gasoline engine as power, has lightweightly, and the feature such as volume is little, simple in structure, is widely used in the nonirrigated farmland, paddy field, orchard on Plain, mountain area, hills etc.Small tillage machine can freely be exercised in field, user-friendly and deposit, and has saved large-scale farm machinery and cannot enter the worry of mountain area field, is to substitute the cultivated optimal selection of ox.The defect that existing small tillage machine exists is: in transmission shifting mechanism, mostly only possess the gear advancing, do not reverse gear, in the time of farming operation, require great effort very much if will realize complete machine reversing meeting, be inconvenient to operate; Each gear and wheel shaft in transmission shifting mechanism, wear no resistance, and easily weares and teares or fracture in transmission process, and service life is short; In rotary tillage process, the plot that gearbox is corresponding is easily fallen, and farming covers not comprehensive, easily leaves dead angle.
Summary of the invention
The technical problem to be solved in the present invention is to overcome above-mentioned defect, provides one to have reverse gear mechanism, can easily realize complete machine reverse action, and farming covers comprehensively, the small tillage machine of long service life.
For addressing the above problem, the technical solution adopted in the present invention is:
A kind of small tillage machine, comprises frame and is located at engine, gearbox, the handgrip assembly in frame, and rotary tillage process mechanism; Described rotary tillage process mechanism comprises power take-off, is fixed on the tool rest on power take-off and is fixedly mounted on the rotary blade on tool rest; Described gearbox comprises casing and is located at the transmission shifting mechanism in casing; It is characterized in that: described transmission shifting mechanism comprises and is installed with the axle of putting into gear, power input shaft, axle of carrier pulley, the power transmission shaft of shift fork and is arranged on power input wheel and power shift gear on power input shaft, is arranged on idle wheel on axle of carrier pulley, is arranged on drive and sprocket wheel on power transmission shaft; The two ends of power input shaft, axle of carrier pulley and power transmission shaft are all arranged on the shell wall of casing by bearing; Described power shift gear is duplicate gear, comprises first gear and second gear, and with power input shaft spline fitted, shift fork is arranged between first gear and second gear; Idle wheel comprises a gear idle wheel, two gear idle wheel and transmission idle wheels, they all with axle of carrier pulley spline fitted; Drive and sprocket wheel all coordinate with splined driveshaft; Wherein, first gear, second gear can engage with a gear idle wheel, two gear idle wheels respectively, and transmission idle wheel often engages with drive, and sprocket wheel is in transmission connection with the power output wheel that is fixed on power take-off middle part; On described power transmission shaft, be also set with duplicate gear, comprise reverse gear and pinion, reverse gear can be meshed with second gear, and pinion often engages with two gear idle wheels.
Say further:
In tool rest on described power take-off, two tool rests that are positioned at gearbox both sides slope inwardly, and angle of inclination size is 10 °～20 °.
The front end of described frame is provided with bumper.
The number of teeth of described first gear is 17, and the number of teeth of a gear idle wheel with matching is 47; The number of teeth of described second gear is 20, and the number of teeth of two gear idle wheels with matching is 44; The number of teeth of described transmission idle wheel is 14, and the number of teeth of the drive of normal engagement is 48 with it.
The diameter of described power input shaft is 22mm, and the diameter of described axle of carrier pulley is 25mm.
Owing to having adopted technique scheme, compared with prior art, the present invention possesses following advantage: in transmission shifting mechanism, possess reverse gear mechanism, can realize very like a cork complete machine reverse action; On power take-off, two tool rests of the close gearbox of inner side slope inwardly, and like this, when rotary tillage process, coverage rate is complete, does not stay dead angle; Each wheel shaft overstriking in transmission shifting mechanism, the thickening of the gear teeth of gear, make it more wear-resisting, increases the service life.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the structural representation of transmission shifting mechanism in embodiments of the invention.
In figure: 1-handgrip assembly; The 2-bar of putting into gear; 3-power input shaft; 4-belt; 5-engine; 6-bumper; 7-frame; 8-tool rest; 9-rotary blade; 10-power take-off; 11-casing; 12-power transmission shaft; 13-axle of carrier pulley; 14-power output wheel; 15-sprocket wheel; 16-drive; 17-transmission idle wheel; 18-mono-keeps off idle wheel; 19-first gear; The 20-axle of putting into gear; 21-shift fork; 22-second gear; 23-power input wheel; 24-bis-keeps off idle wheel; 25-pinion; 26-reverse gear; 27-chain.
Embodiment
Embodiment:
A kind of small tillage machine, as shown in Figure 1, comprises frame 7 and is located at engine 5, gearbox, the handgrip assembly 1 in frame 7, and rotary tillage process mechanism.Handgrip assembly 1 is located at the rear portion of frame 7, and the front end of described frame 7 is provided with bumper 6.
Described rotary tillage process mechanism comprises power take-off 10, is fixed on the power output wheel 14 at power take-off 10 middle parts, is fixed on the tool rest 8 on power take-off 10 and is fixedly mounted on the rotary blade 9 on tool rest 8.In described tool rest, two tool rests 81,82 that are positioned at gearbox both sides slope inwardly, and angle of inclination size is 10 °～20 °.Like this, in the time of rotary tillage process, the plot of gearbox below just can not be fallen, and does not leave dead angle.
As shown in Figure 2, described gearbox comprises casing 11 and is located at the transmission shifting mechanism in casing 11.Transmission shifting mechanism comprises and is installed with the axle 20 of putting into gear, power input shaft 3, axle of carrier pulley 13, the power transmission shaft 12 of shift fork 21 and is arranged on power input wheel 23 and power shift gear on power input shaft 3, is arranged on idle wheel on axle of carrier pulley 13, is arranged on drive 16 and sprocket wheel 15 on power transmission shaft 12.Put into gear one end of axle 20 passes casing 11 and is fixedly connected with the bar 2 of putting into gear.The two ends of power input shaft 3, axle of carrier pulley 13 and power transmission shaft 12 are all arranged on the shell wall of casing 11 by bearing.Power input wheel 23 is in transmission connection by belt 4 and the power wheel of engine.
Described power shift gear is duplicate gear, comprises first gear 19 and second gear 22, and with power input shaft 3 spline fitted, shift fork 21 is arranged between first gear 19 and second gear 22.Idle wheel comprises a gear idle wheel 18, two gear idle wheel 24 and transmission idle wheels 17, they all with axle of carrier pulley 13 spline fitted.Drive 16 and sprocket wheel 15 all with power transmission shaft 12 spline fitted.First gear 19, second gear 22 can engage with a gear idle wheel 18, two gear idle wheels 24 respectively, and transmission idle wheel 17 often engages with drive 16, and sprocket wheel 15 is in transmission connection by chain 27 with power output wheel 14.
On described power transmission shaft 12, be also set with duplicate gear, comprise reverse gear 26 and pinion 25, reverse gear 26 can be meshed with second gear 22, and pinion 25 often engages with two gear idle wheels 24.
In order to strengthen the anti-wear performance of transmission shifting mechanism, extend its service life, compared with the transmission shifting mechanism of existing small tillage machine, the present invention reduces the number of teeth of each gear, corresponding transverse tooth thickness strengthens, and each wheel shaft increases thick, and the installing hole diameter of corresponding each gear also increases.Wherein, the number of teeth of described first gear 19 is 17, and the number of teeth of a gear idle wheel 18 with matching is 47; The number of teeth of described second gear 22 is 20, and the number of teeth of two gear idle wheels 24 with matching is 44; The number of teeth of described transmission idle wheel 17 is 14, and the number of teeth of the drive 16 of normal engagement is 48 with it.The diameter of power input shaft 3 is 22mm.The diameter of axle of carrier pulley 13 is 25mm.
Transmission gear shift operation principle of the present invention is as follows:
Ato unit 5, the power wheel of engine 5 can drive power input wheel 23 to rotate by belt 4, and then drives power input shaft 3.Before putting into gear at every turn, first make belt 4 lax by belt clutch, like this, power input shaft 3 just runs out of steam, and stops operating; After putting into gear, then make belt 4 tensioners by belt clutch, power input shaft 3 obtains power, and then, power is sent to power output wheel 14 by transmission shifting mechanism, and then drives rotary tillage process mechanism to complete rotary tillage process.
In the time that power shift gear is between a gear idle wheel 18 and two gear idle wheels 24, transmission shifting mechanism is in neutral position state.
One gear transmission process is as described below: operate the bar 2 of putting into gear, the axle 20 that makes to put into gear drives shift fork 21 to stir power shift gear, and first gear 19 and a gear idle wheel 18 are engaged.Power input shaft 3 obtains after power, drive power shift gear, first gear 19 drives a gear idle wheel 18, one gear idle wheel 18 drives transmission idle wheel 17 by axle of carrier pulley 13, transmission idle wheel 17 drives power transmission shaft 12 by drive 16, and then band movable sprocket 15, sprocket wheel 15 is by chain 27 transfer motion power output wheels 14, and then drive rotary tillage process mechanism completes rotary tillage process.
Two gear transmission process are as described below: operate the bar 2 of putting into gear, the axle 20 that makes to put into gear drives shift fork 21 to stir power shift gear, and second gear 22 and two gear idle wheels 24 are engaged.Power input shaft 3 obtains after power, drive power shift gear, second gear 22 drives two gear idle wheels 24, two gear idle wheels 24 drive transmission idle wheel 17 by axle of carrier pulley 13, transmission idle wheel 17 drives power transmission shaft 12 by drive 16, and then band movable sprocket 15, sprocket wheel 15 is by chain 27 transfer motion power output wheels 14, and then drive rotary tillage process mechanism completes rotary tillage process.
The transmission process that reverses gear is as described below: operate the bar 2 of putting into gear, the axle 20 that makes to put into gear drives shift fork 21 to stir power shift gear, and second gear 22 is engaged with reverse gear 26.Power input shaft 3 obtains after power, drive power shift gear, second gear 22 drives reverse gear 26, and reverse gear 26 drives pinion 25, and pinion 25 drives a gear idle wheel 18, one gear idle wheel 18 drives transmission idle wheel 17 by axle of carrier pulley 3, transmission idle wheel 17 drives power transmission shaft 12 by drive 16, and then band movable sprocket 15, and sprocket wheel 15 is by chain 27 transfer motion power output wheels 14, power output wheel 14 drives rotary tillage process mechanism to rotate backward, and then completes complete machine reverse action.
Claims (6)
1. a small tillage machine, comprises frame (7) and is located at engine (5), gearbox, the handgrip assembly (1) in frame (7), and rotary tillage process mechanism; Described rotary tillage process mechanism comprises power take-off (10), is fixed on the tool rest (8) on power take-off (10) and is fixedly mounted on the rotary blade (9) on tool rest (8); Described gearbox comprises casing (11) and is located at the transmission shifting mechanism in casing (11); It is characterized in that: described transmission shifting mechanism comprises and is installed with the axle of putting into gear (20), power input shaft (3), axle of carrier pulley (13), the power transmission shaft (12) of shift fork (21) and is arranged on power input wheel (23) and power shift gear on power input shaft (3), is arranged on idle wheel on axle of carrier pulley (13), is arranged on drive (16) and sprocket wheel (15) on power transmission shaft (12); The two ends of power input shaft (3), axle of carrier pulley (13) and power transmission shaft (12) are all arranged on the shell wall of casing (11) by bearing;
Described power shift gear is duplicate gear, comprise first gear (19) and second gear (22), with power input shaft (3) spline fitted, shift fork (21) is arranged between first gear (19) and second gear (22); Idle wheel comprises a gear idle wheel (18), two gear idle wheel (24) and transmission idle wheels (17), they all with axle of carrier pulley (13) spline fitted; Drive (16) and sprocket wheel (15) all with power transmission shaft (12) spline fitted; Wherein, first gear (19), second gear (22) can engage with a gear idle wheel (18), two gear idle wheels (24) respectively, transmission idle wheel (17) often engages with drive (16), and sprocket wheel (15) is in transmission connection with the power output wheel (14) that is fixed on power take-off (10) middle part;
Described power transmission shaft is also set with duplicate gear on (12), comprise reverse gear (26) and pinion (25), reverse gear (26) can be meshed with second gear (22), and pinion (25) often engages with two gear idle wheels (24).
2. mini-size tillage machine according to claim 1, is characterized in that: in the tool rest on described power take-off (10), two tool rests (81,82) that are positioned at gearbox both sides slope inwardly, and angle of inclination size is 10 °～20 °.
3. mini-size tillage machine according to claim 1 and 2, is characterized in that: the front end of described frame (7) is provided with bumper (6).
4. mini-size tillage machine according to claim 3, is characterized in that: the number of teeth of described first gear (19) is 17, and the number of teeth of a gear idle wheel (18) with matching is 47; The number of teeth of described second gear (22) is 20, and the number of teeth of two gear idle wheels (24) with matching is 44; The number of teeth of described transmission idle wheel (17) is 14, and the number of teeth of the drive (16) of normal engagement is 48 with it.
5. mini-size tillage machine according to claim 4, is characterized in that: the diameter of described power input shaft (3) is 22mm.
6. mini-size tillage machine according to claim 5, is characterized in that: the diameter of described axle of carrier pulley (13) is 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410321372.4A CN104081893A (en) | 2014-06-28 | 2014-06-28 | Miniature cultivator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410321372.4A CN104081893A (en) | 2014-06-28 | 2014-06-28 | Miniature cultivator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104081893A true CN104081893A (en) | 2014-10-08 |
Family
ID=51629748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410321372.4A Pending CN104081893A (en) | 2014-06-28 | 2014-06-28 | Miniature cultivator |
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| Country | Link |
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| CN (1) | CN104081893A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455402A (en) * | 2014-11-19 | 2015-03-25 | 重庆华世丹机械制造有限公司 | Reverse gear prevention limit mechanism |
| CN107420496A (en) * | 2017-06-10 | 2017-12-01 | 台州信溢农业机械有限公司 | A kind of gear box structure on agricultural tool |
-
2014
- 2014-06-28 CN CN201410321372.4A patent/CN104081893A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455402A (en) * | 2014-11-19 | 2015-03-25 | 重庆华世丹机械制造有限公司 | Reverse gear prevention limit mechanism |
| CN104455402B (en) * | 2014-11-19 | 2016-08-24 | 重庆华世丹机械制造有限公司 | The anti-position-limit mechanism that reverses gear |
| CN107420496A (en) * | 2017-06-10 | 2017-12-01 | 台州信溢农业机械有限公司 | A kind of gear box structure on agricultural tool |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141008 |