CN2720786Y

CN2720786Y - Miniature rotary hand tillage

Info

Publication number: CN2720786Y
Application number: CN 200420089822
Authority: CN
Inventors: 潘伟才
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-20
Filing date: 2004-08-20
Publication date: 2005-08-31
Anticipated expiration: 2014-08-20

Abstract

The utility model relates to a miniature rotary hand tillage whose gearbox is installed above the intermediate section of a machine frame, an engine is installed at the anterior end of the gearbox above the machine frame, an arm rest connecter is installed above the rear end of the gearbox, the rear end of the arm rest connecter is provided with an arm rest, the power output shaft of the gearbox is installed at the lower end of the gearbox, the output shaft is sheathed with a vehicle wheel or a tillage knife, a variable depth adjustment rod is installed at the rear end of the machine frame; the power output shaft of the engine is directly installed on a clutch in the gearbox. A clutch difference poke device, a shift difference poke device and a back action poke device are installed in the gearbox, and the arm rest is provided with a shift rod, a throttle valve, a clutch handle and a back action handle. The utility model has the advantages of variable speed, variable direction, less body self weight, flexible shift, etc. The utility model can cultivate land and run on the land, being suitable for various narrow and uneven working fields, such as dry land, paddy land, etc.

Description

The miniature hand rotovator

Technical field

The utility model belongs to the agro-farming mechanical field, relates to a kind of miniature hand tiller, is specially adapted in narrow farming field, place.

Background technology

At present in the prior art of public publication, the miniature hand rotovator roughly is divided into two classes, one class is the fixing rotovator of rotating speed, that is: be made up of engine, gearbox, road wheel, cultivated cutter, several parts of handrail, the power part of gearbox output is given road wheel, and a part is given cultivated cutter, plough between cutter and gearbox and use the belt pulley transmission, rotovator is in one timing of engine output speed, and the output speed of rotary ploughing cutter shaft also is a certain value, and can not realize the reverse rotation of rotary blade; The another kind of miniature hand rotovator close with the utility model, be a kind of slewing rate of rotary blade and the miniature hand rotovator that rotation direction can change as required, it comprises, engine, gearbox, road wheel, cultivated cutter, handrail, flywheel several sections, this rotovator connects with a belt flywheel gear between engine output shaft and gearbox, handrail is at the gearbox rear portion, plough cutter below gearbox, this rotovator exist flywheel gear to advance muddy water easily and skid, shift speed change operating difficulties, machine be from great, bulky shortcoming.

The utility model content

The purpose of this utility model is to provide a kind of miniature hand rotovator, and this machine not only can be realized the speed change of rotary blade, and can make the rotary blade reverse rotation, can adapt to different work-yard environment, and not only flexible operation, and volume is little, deadweight is little.

For reaching above goal of the invention, the utility model is made up of frame, engine, gearbox, handrail connector, handrail, power take-off, wheel, several parts of depth adjustment bar, gearbox is contained in the top, middle part of frame, engine is installed in frame top gearbox front end, the handrail connector is equipped with in top, gearbox rear end, handrail connector rear end is equipped with handrail, the power take-off of gearbox is installed in the gearbox lower end, cover wheel-mounted or cultivated cutter on this output shaft, the depth adjustment bar is contained in frame rear end.

The output shaft of this machine engine inserts in the gearbox and joins with clutch outer member in the gearbox.The inner core cover of the clutch in the gearbox is in clutch outer member, the middle part of the inner core of clutch is equipped with turning cylinder, the spindle nose of turning cylinder is installed in the shell inboard of clutch with bearing fixing, clutch is sent the top that device is contained in clutch rear end turning cylinder, clutch is sent device and is withstood on clutch inner core rear end, clutch runner device stretches out on the outer part of gearbox body the Clutch Control arm is housed, and the Clutch Control line is housed on the Clutch Control arm; The output shaft of the engine that turning cylinder is interior with inserting gearbox is on same axis, at the turning cylinder middle part, a geared sleeve is installed, geared sleeve can slide front and back on turning cylinder, one end of geared sleeve has big driving gear, the other end has small active gear, the rear end of turning cylinder uses bearing fixing on the casing of the rear portion of gearbox, a bolster that is parallel to turning cylinder is arranged below turning cylinder, this bolster rear end is installed on the casing of gearbox rear portion, driven gear is installed on it, a big driven gear and a little driven gear are arranged on the driven gear; Above the big driving gear end of geared sleeve, a gear is housed sends device, this is sent device and links to each other with the shift control pull bar of gearbox outside, front end at bolster is equipped with a bevel gear, angular wheel be contained in of gearbox middle part and mesh from the mantle fluted disc, it is suitable for reading to be installed in the transmission case body that is positioned at the gearbox body bottom from the bottom of mantle fluted disc with bearing fixing, from mantle fluted disc middle part a power transmission shaft longitudinally is housed, this power transmission shaft is installed in the transmission case, its other end gos deep into the transmission case bottom, with bearing fixing on the transmission case lower part box, on the lower end spindle nose of longitudinal drive shaft bevel gear is installed, another awl fluted disc is equipped with in the bottom of transmission case, and with the engagement of vertical bevel gear, the middle part of awl fluted disc is equipped with a power take-off, and power take-off runs through the transmission case body shell, and it stretches out cover wheel-mounted or cultivated cutter on the two ends spindle nose of shell;

On the casing of gearbox rear portion, the inboard position of the geared sleeve on the turning cylinder is equipped with a reverse gear, and the runner's device that reverses gear is equipped with in the below of reverse gear, and the runner's device that reverses gear stretches out the outer part of gearbox body and links to each other with the control line that reverses gear.

The utility model is owing to have speed change gear and reverse gear apparatus, thereby can realize the height quick change shelves of rotary tillage tractor-ploughing cutter, forward and reverse rotary tillage with cultivated cutter, owing to adopt axle directly to be connected between engine and gearbox, thereby skidding can not occur, can adapt to multiple environment such as nonirrigated farmland, paddy field, complete machine weight reduces simultaneously, volume reduces, and it is more flexible to operate, thereby improves farming efficient greatly.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the sectional structure schematic diagram of the utility model gearbox.

Embodiment

A kind of miniature hand rotovator as shown in Figure 1, 2 is made up of frame 22, engine 1, gearbox 2, transmission case 18, handrail connector 6, handrail 9, output shaft 20, wheel 21, depth adjustment bar more than 17 parts.

Gearbox 2 is contained in the top, middle part of frame 22, engine 1 is installed in frame 22 top gearboxes 2 front ends, handrail connector 6 is equipped with in top, gearbox 2 rear ends, handrail connector 6 rear ends are equipped with handrail 9, transmission case 18 is installed in below, gearbox 2 bottoms, output shaft 20 is installed in transmission case 18 lower ends, be used for outwards providing outputting power, depth adjustment bar 17 is contained in frame 22 rear ends, the degree of depth when regulating the complete machine farming, Oil Switch 10 is housed on handrail 9, handle 11 reverses gear, clutch handle 12 and gear control lever 8, they connect throttle line 3 respectively, line 13 reverses gear, clutch line 5 and gear connecting rod 15; Oil Switch 10 is a left and right sides unscrewing type, changes Oil Switch 10 by dialling, and can control the engine oil inlet quantity, thereby swivel speed is ploughed in control.This machine is when walking, and cover wheel-mounted 21 is taken off the wheel cover and loaded onto cultivated cutter on the output shaft 20 when farming, and is fixing with pin 19, gets final product farming.

The power take-off 29 of this machine engine 1 inserts in the gearboxes 2, and its spindle nose directly is sleeved in the gearbox 2 on the clutch outer member 28.Clutch inner core 31 is enclosed within the clutch outer member 28 in the gearbox 2, the middle part of clutch inner core 31 is equipped with turning cylinder 37, the spindle nose of turning cylinder 37 is fixedly mounted on inboard, clutch outer member 28 middle part with bearing 30, clutch is sent the top that device 32 is contained in clutch inner core 31 rear end turning cylinders 37, clutch is sent device 32 lower ends and is withstood on clutch inner core 31 rear ends, clutch is sent device 32 and is stretched out on gearbox body 2 part outward, Clutch Control arm 4 is housed, clutch line 5 one ends are fixed on Clutch Control arm 4 one ends on the gearbox 2, and the other end is fixedly connected on the clutch handle 12; When clutch handle 12 unclamped, clutch inner core 31 combined with clutch outer member 28, and when the tiller held clutch handle 12 with a firm grip, clutch inner core 31 separated with clutch outer member 28.

Engine power output shaft 29 in turning cylinder 37 and the insertion gearbox 2 is on same axis, these turning cylinder 37 middle parts are equipped with a geared sleeve 35, one end of geared sleeve 35 has big driving gear 34, the other end has small active gear 36, and the rear end of turning cylinder 37 is fixed on the rear portion casing of gearbox 2 with bearing 38; Above big driving gear 34 1 ends of geared sleeve 35, a gear is housed sends device 33, this is sent device 33 and links to each other with the shift control pull bar 8 of gearbox 2 outsides; Pulling gear shift operating rod 8, but device handsetting gear cover 35 is sent in gear shift, is slided in geared sleeve 35 front and back on turning cylinder 37.

A bolster 43 that is parallel to turning cylinder 37 is housed below turning cylinder 37, these bolster 43 rear ends are installed on the gearbox 2 rear portion casings, driven gear 45 is installed on the bolster 43, big driven gear 46 and little driven gear 47 are arranged on the driven gear 45, when geared sleeve 35 backs are sliding, big driving gear 34 can with little driven gear 47 engagements, when geared sleeve 35 is advancing slip, small active gear 36 can with big driven gear 46 engagements; The end that gear is sent device 33 stretches out outside the gearbox body 2, it stretches out gearbox body 2 outer parts and is connected with shift control pull bar 8 by a connecting rod 15, when the tiller pushes away shift control pull bar 8 forward, because connecting rod 15 transmissions, sending device 33 correspondingly stirs from the gear near clutch inner core 31 geared sleeve 35 to the gear near turning cylinder spindle nose 40, from first gear near clutch inner core 31, to last gear near turning cylinder spindle nose 40, its stroke gear is followed successively by low or first gear, neutral gear, top gear.When geared sleeve 35 is positioned at low or first gear, small active gear 36 and big driven gear 46 engagements; When geared sleeve 35 was positioned at neutral gear, driven gear 45 was between big driving gear 34 and small active gear 36, and driven gear 45 does not mesh with geared sleeve 35; When geared sleeve 35 is positioned at top gear, big driving gear 34 and little driven gear 47 engagements.

Front end at bolster 43 is equipped with a bevel gear 44, bevel gear 44 with of gearbox 2 middle parts from 27 engagements of mantle fluted disc; Suitable for reading from the bottom of mantle fluted disc 27 with the casing that bearing 48 is fixedly mounted on the transmission case 18 that is positioned at gearbox body 2 bottoms, a power transmission shaft 26 longitudinally is housed from mantle fluted disc 27 middle parts, power transmission shaft 26 is installed in the transmission case 18, its other end gos deep into transmission case 18 bottoms, be fixed on transmission case 18 lower box with bearing 25, another bevel gear 24 is installed on the lower end spindle nose of power transmission shaft 26, another awl fluted disc 23 also is equipped with in the bottom of transmission case 18, awl fluted disc 23 and bevel gear 24 engagements, the middle part of awl fluted disc 23 is equipped with a power take-off 20, and power take-off 20 runs through transmission case 18 cabinet shells.When rotovator need be walked, the cover wheel-mounted was also with pin 19 fixing getting final product on the output shaft 20; When the needs farming, take off wheel, cover is loaded onto and is ploughed cutter and use pin 19 fixing getting final product.

On gearbox 2 rear portion casings, geared sleeve 35 inner sides on the turning cylinder 37, a reverse gear cover 41 is installed, the below of reverse gear cover 41 is equipped with to reverse gear and is sent device 42, the runner's device 42 that reverses gear stretches out gearbox 2 external control arms 16 and links to each other with the control line 13 that reverses gear, and the control line 13 that reverses gear links to each other with the handle 11 that reverses gear.During reverse gear, the clutch handle 12 of holding with a firm grip, cut-off clutch shell 28 and clutch inner core 31; Spur shift control pull bar 8 then, make geared sleeve 35 be in neutral position; The handle 11 that reverses gear of holding with a firm grip again, control arm 16 rotates up, runner's device 42 in the gearbox 2 rotates, thereby reverse gear cover 41 is advanced to geared sleeve 35 directions, make gear wheel and small active gear 36 engagements on the geared sleeve 41, pinion on the geared sleeve 41 meshes with big driven gear 46, thereby changes the rotation direction of power take-off 20, reaches the purpose of reverse gear.

Gear connecting rod 15 middle parts have one to subtract the power bar longitudinally, subtract the middle part perforate of power bar, are movably arranged on the handrail connector 6.Get the effect of the resistance that reduces to shift gears.Handrail 9 usefulness clamping levers 7 are fixed on handrail connector 6 upper ends.The spindle nose 40 of power take-off 37 rear ends stretches out outside the gearbox 2 rear portion casings, and hubcap 39 covers on spindle nose 40.Spindle nose is outputting power outwards, is used to drive exterior mechanical work such as water pump, plays the effect of a tractor serves several purposes.

Claims

1. miniature hand rotovator, it is by frame (22), engine (1), gearbox (2), transmission case (18), handrail connector (6), handrail (9), power take-off (29), wheel (21), several parts of depth adjustment bar (17) are formed, gearbox (2) is contained in the top, middle part of frame (22), engine (1) is installed in frame (22) top gearbox (2) front end, handrail connector (6) is equipped with in top, gearbox (2) rear end, handrail connector (6) rear end is equipped with handrail (9), transmission case (18) is installed in below, gearbox (2) bottom, output shaft (20) is installed in transmission case (18) lower end, output shaft (20) is gone up cover wheel-mounted (21), depth adjustment bar (17) is contained in frame (22) rear end, Oil Switch (10) is housed on handrail (9), handle (11) reverses gear, clutch handle (12) and gear control lever (8), they connect throttle control line (3) respectively, control line (13) reverses gear, Clutch Control line (5) and gear connecting rod (15); It is characterized in that: the power take-off (29) of engine (1) inserts in the gearbox (2), and its spindle nose directly is sleeved on clutch outer member (28) middle part in the gearbox (2).

2. miniature hand rotovator as claimed in claim 1, it is characterized in that: the spindle nose of power take-off (29) is sleeved on clutch outer member (28) front center in the gearbox (2), clutch inner core (31) is enclosed within the clutch outer member (28) in the gearbox (2), the middle part of clutch inner core (31) is equipped with turning cylinder (37), the front end spindle nose of turning cylinder (37) is fixedly mounted on clutch outer member (28) rear inside with bearing (30), clutch runner's device (32) is contained on the gearbox body (2) of clutch inner core (31) rear end turning cylinder (37) top, clutch is sent device (32) lower end and is withstood on clutch inner core (31) rear end, clutch runner's device (32) stretches out on the outer part of gearbox body (2) Clutch Control arm (4) is housed, Clutch Control line (5) is housed on the Clutch Control arm (4), engine power output shaft (29) in turning cylinder (37) and the insertion gearbox (2) is on same axis, turning cylinder (37) middle part is equipped with a geared sleeve (35), one end of geared sleeve (35) has big driving gear (34), the other end has small active gear (36), and the rear end of turning cylinder (37) is fixed on the rear portion casing of gearbox (2) with bearing (38); In big driving gear (34) the one ends top of geared sleeve (35), a gear is housed sends device (33), this gear is sent device (33) and is linked to each other with the gear connecting rod (15) of gearbox (2) outside, and gear connecting rod (15) connects shift control pull bar (8); In turning cylinder (37) lower rear a bolster (43) that is parallel to turning cylinder (37) is arranged, bolster (43) rear end is installed on the casing of gearbox (2) rear portion, driven gear (45) is installed on the bolster (43), big driven gear (46) and little driven gear (47) are arranged on the driven gear (45), front end at bolster (43) is equipped with a bevel gear (44), bevel gear (44) with mesh from mantle fluted disc (27) of gearbox (2) middle part; It is suitable for reading to be fixedly mounted on the transmission case body (18) that is positioned at gearbox body (2) bottom from the bottom of mantle fluted disc (27) with bearing (48), from mantle fluted disc (27) middle part a power transmission shaft (26) longitudinally is housed, power transmission shaft (26) is installed in the transmission case (18), its other end gos deep into transmission case (18) bottom, be fixed on transmission case (18) lower part box with bearing (25), another bevel gear (24) is installed on the lower end spindle nose of power transmission shaft (26), another awl fluted disc (23) also is equipped with in the bottom of transmission case (18), awl fluted disc (23) and bevel gear (24) engagement, the middle part of awl fluted disc (23) is equipped with an output shaft (20), output shaft (20) runs through transmission case (18) both sides cabinet shell, and it stretches out on the two ends spindle nose of shell and overlaps wheel-mounted (21); On the casing of gearbox (2) rear portion, geared sleeve (35) inner side on the turning cylinder (37), a reverse gear cover (41) is installed, the below of reverse gear cover (41) is equipped with to reverse gear and is sent device (42), and the runner's device (42) that reverses gear stretches out the outer reverse gear control arm (16) of gearbox body (2) and links to each other with the control line that reverses gear (13).

3, miniature hand rotovator as claimed in claim 2 is characterized in that: gear connecting rod (15) middle part has one to subtract the power bar longitudinally, subtracts on the power bar to have installing hole, is movably arranged on the handrail connector (6).

4, miniature hand rotovator as claimed in claim 3 is characterized in that: wheel (21) is socketed on the output shaft (20), and is fixing with pin (19).

5, miniature hand rotovator as claimed in claim 4 is characterized in that: handrail (9) is fixed on handrail connector (6) upper end with clamping lever (7).

6, miniature hand rotovator as claimed in claim 5 is characterized in that: the spindle nose (40) of power take-off (37) rear end, stretch out outside the casing of gearbox (2) rear portion, and end cap (39) covers on spindle nose (40).