CN100402320C

CN100402320C - Cam-retractable paddy field driving wheel

Info

Publication number: CN100402320C
Application number: CNB2006100316480A
Authority: CN
Inventors: 阳尧端
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-07
Filing date: 2006-05-07
Publication date: 2008-07-16
Anticipated expiration: 2026-05-07
Also published as: CN1891497A

Abstract

This invention relates to a paddy field driving wheel with an expansion cam, in which, a round main driving wheel has an expansion port with expansion vanes, which constitute an expansion body with a vane connection shaft, a contacted pressure board and a compressing spring, the contacted pressure plate always contacts with the cam profile, the cam is fixed on the machine by a fixing shaft, the bearing cover and a sealing cover are movably connected with the fixed shaft by the bearing, the main driving wheel is connected with driving shaft key and the driving shaft is connected with the shift system of the host characterizing in good driving ability in mud paddy fields, small power cost and big driving force and high working efficiency.

Description

Cam-retractable paddy field driving wheel

Technical field

The present invention relates to a kind of field machine of using as drive wheel, cam-retractable paddy field driving wheel, its wide accommodation is suitable for doing muddy water field drive wheel especially and uses on field machine.

Background technology

At present both at home and abroad the travel driving unit that generally uses on the agricultural machinery product is divided into crawler type and wheeled two kinds, the crawler type device is adapted to northern dry land and uses, but because cost height, from great, quick abrasion, power consumption height, inefficiency, the defective that folder mud band grass is arranged, and the surface, field is compacted, thereby be unwell to southern mountain area and the walking operation of high-land muddy water field.Though wheeled devices is from heavy and light, simple in structure, but because that its external diameter size and drive vane sponson remain is constant, when making this wheel walk operation in the muddy water field, the defective of ubiquity foundry loam band grass, work-hours is long slightly, all carry secretly between the space of wheel outer rim two sponsons and sticked the mud grass, the mud grass increases the drive wheel deadweight along with wheel rolls, consumption of power increases, cause driving engine in the muddy water field phenomenon of flame-out " deadlock ".Because the embedded bigger mud grass of viscosity of having expired in space reduces each drive vane overhang, the forfeiture propulsive effort causes the original place to skid, and sink gradually, can't normal operation in addition.In a word, above travel driving unit ubiquity folder mud band grass easily stops up, power consumption is big, and efficient is low, weak points such as muddy water field walking driveability difference.

Summary of the invention

The purpose of this invention is to provide a kind ofly for the cam-retractable paddy field driving wheel that uses on the field machine, it is good to accomplish at muddy water field operation driveability, does not press from both sides mud band grass, and drive torque is big, and consumption of power is little, high efficiency.

The core of technical scheme is to provide a kind of drive wheel that is adapted in the operation of muddy water field for existing field machine (as reaper, harvesting and tillage machine, rice transplanter), change the fixing overhanging drive vane of circular wheel into telescopic drive vane, blade stretches out wheel rim in position, advancing drive angle section, produce bigger drive torque, after having crossed before driving angle section, blade in the retraction wheel, has been avoided folder mud band grass and consumed power gradually.The area size of its overhang can determine the drive torque value, can design its overhang according to different facility needs, also can make adjustable.

This mechanism is made up of inner, middle and outer layer three parts, and internal layer is a cam, is installed on the anchor shaft, centre portion is flexible vane group zoarium, comprise flexible blade, compression spring, contact pressing plate, blade adapter shaft etc., skin is main drive wheel and seal cover cap, and bearing play supporting role.

Principle of work is as follows: rotary motive power is from driving the rotating shaft input, the drive main drive wheel rotates, main drive wheel drives flexible blade rotation, flexible blade, contact pressing plate and blade adapter shaft fabricate block are under the effect of compression spring elastic force, all the time keep closed contact with cam face, guarantee telescopic process realization smoothly in rotation, when main drive wheel rotates, flexible blade can be realized fore and aft motion according to the outline line shape of cam, flexible blade overhang maximum when the preceding half-angle of wheel turns requires the large driving force square, in the time of will turning over vertical central plane, flexible blade is withdrawn gradually, in the flexible mouth of wheel, can accomplish not press from both sides mud band grass until all withdraw.

Compared with the prior art, the present invention has following characteristics:

1, muddy water field driveability is good, and is non-slip, and drive torque is big, the production efficiency height.

Because the mode of uniform telescopic blade around adopting, in the advance angle position section that requires to produce drive torque, flexible blade overhang is very big, and go deep in the dirt bed, thereby produced very big drive torque, make field machine non-slip when mud field and paddy-field-working, driveability is good, and production efficiency just is improved naturally.

2, do not press from both sides mud band grass, also not messy, consumption of power is little, high efficiency.

Owing to adopt flexible blade, turn over the advance angle position section of generation drive torque at drive wheel after, shunk back gradually, and in the whole retraction bodies of energy, thereby desliming automatically in rotation process is avoided pressing from both sides the increase of mud band grass and is conducted oneself with dignity when the operation of mud field, also avoided messy increase resistance to motion when paddy-field-working, reduced reactive power consumption, total power consumption is descended, work efficiency is improved.

3, do not sink, travel freely, and have multiple function such as whole Tian Pingtian, laborsaving, saving of labor.

Drum-type structure is as the main drive wheel main body mechanism preferably to adopt sealing property, and it is bigger to take turns wide size, and buoyancy increases, and therefore can not sink into muddy water Tanaka, travels conveniently, is particluarly suitable for mud Tanaka operation and uses.

When this drive wheel was used on the rice combine operation, the flexible blade on the drive wheel can be pressed into the standing grain root and stem of certain plants in the mud automatically, thereby makes field soil smooth, realized the function in whole field.Especially double rush for harvesting and sowing rush season, can save farming link such as plough a field, harrow a field, directly the late rice rice shoot is inserted in the rice field of having gathered in.

When this drive wheel is used on the rice transplanter operation, then can produce bigger drive torque, avoid skidding, simultaneously again can smooth good muddy water field for rice transplanting usefulness, can not destroy plane, original mud field, and production efficiency is improved.

When this drive wheel is used on the harvesting and tillage machine operation, flexible blade stretches out earlier to crush treats farming earth, turn in the body of withdrawing gradually after the nadir, neither drag mud folder mud, the rotten grass of the straw that floats over earth surfaces can be depressed gradually again and be imbedded the earth depths and make fertilizer usefulness, drive function and pressure and bury after careless function finishes, since blades retracted in the body, smooth wheel drive surfaces can play the effect of smooth mud field again, has accomplished to save labor a tractor serves several purposes.

4, function is many, applied range, and mechanism is simple, and manufacturing cost is lower

Adopt telescopic structure on the drive wheel, not only being adapted to various field machines uses, and can produce the several work effect simultaneously during work, and cam-retractable mechanism is simple, from heavy and light, manufacturing cost is also lower, on the small-sized and miniature wheeled harvester of southern widespread usage, rice transplanter, harvesting and tillage machine, more can bring into play unique effect.

Description of drawings

Fig. 1 is cam-retractable paddy field driving wheel mechanism cutaway view (the main frame other parts that link is not with it omitted and drawn)

Fig. 2 is a cam-retractable paddy field driving wheel internal mechanism fundamental diagram

Fig. 3 is the main drive wheel cutaway view

Fig. 4 is the left view (retractable paddy field driving wheel outside drawing) of Fig. 1

The specific embodiment

As shown in the figure, the present invention includes main drive wheel 7, drive rotating shaft 8, both link with flat key 9.Have flexible mouthful 13 on the main drive wheel 7, flexible blade 5 is flexible in flexible mouthful 13 under the effect of elastic force, and elastic force produces and fore and aft motion complements each other to form by taper compression spring 6, the shape of cam 10 and the links such as rotation of main drive wheel 7.Contact pressing plate 11 forms a whole with blade adapter shaft 12, flexible blade 5, taper compression spring 6 is contained on the blade adapter shaft 12, the miner diameter end of taper compression spring 6 contacts with the internal circular surfaces of main drive wheel 7, and bigger diameter end applies pressure on the contact pressing plate 11, makes it to remain with cam 10 to contact.Cam 10 and anchor shaft 1 are for being fixedly connected, the connecting mode of anchor shaft 1 and main frame and drive rotating shaft 8 and main frame driving system connecting mode and can determine according to different mechanical types and type, inner seal lid 4 and bearing cap shim 2 adopt Bolt Connection, in block bearing 3 is arranged, inner seal lid 4 and main drive wheel 7 adopt Bolt Connection.

Its principle of work and working process are: rotary motive power is from driving rotating shaft 8 inputs, driving main drive wheel 7 rotates, main drive wheel 7 drives flexible blade 5 and rotates, simultaneously because the effect of compression spring 6 elastic forces, when main drive wheel 7 rotates, flexible blade 5 can be realized fore and aft motion according to the outline line shape of cam 10, stretch in the advance angle position section that requires to produce drive torque, and then shrink back gradually, desliming automatically in rotation process, avoid pressing from both sides mud band grass, flexible blade 5 can all be withdrawn in flexible mouthful 13, can decide the drive torque value by the area size of regulating overhang.

Claims

1. cam-retractable paddy field driving wheel, comprise main drive wheel (7), drive rotating shaft (8), both link, have on the main drive wheel (7) flexible mouthful (13), flexible blade (5) flexible in flexible mouthful (13) with flat key (9), its fore and aft motion leans on elastic force, the shape of cam (10) and the rotation of main drive wheel (7) etc. of taper compression spring (6) to complement each other to form.Contact pressing plate (11) forms a whole with blade adapter shaft (12), flexible blade (5), taper compression spring (6) is contained on the blade adapter shaft (12), the miner diameter end of taper compression spring (6) contacts with the internal circular surfaces of main drive wheel (7), bigger diameter end applies pressure to and contacts on the pressing plate (11), makes it to keep in touch with cam (10).Cam (10) and anchor shaft (1) are for being fixedly connected, and inner seal lid (4) and bearing cap shim (2) adopt Bolt Connection, in block bearing (3) is arranged, inner seal covers (4) and main drive wheel (7) employing Bolt Connection.

2. cam-retractable paddy field driving wheel according to claim 1, when it is characterized in that main drive wheel (7) rotates, flexible blade (5) stretches out in flexible mouthful (13) under resilient force and withdraws, in the working direction angle position, flexible blade (5) stretches out, flexible blade (5) was withdrawn gradually after main drive wheel (7) turned over the center shaft vertical surface, and its base portion is main drive wheel (7), cam (10) and flexible blade (5).

3. cam-retractable paddy field driving wheel according to claim 1 and 2, anchor shaft (1) and cam (10) are installed on the main body, and stationkeeping, and other parts are with main drive wheel (7) and drive rotating shaft (8) rotation.

4. cam-retractable paddy field driving wheel according to claim 1 and 2, it is characterized in that flexible blade (5) and blade adapter shaft (12), contact pressing plate (11), compression spring (6) extrusome of composition jointly, this extrusome device is evenly distributed on main drive wheel (7) circumference, and its quantity can be determined according to required propulsive effort and wheel footpath size.

5. cam-retractable paddy field driving wheel according to claim 1 and 2, it is characterized in that when paddy field driving wheel rotates walking, the moving circle of paddy field driving wheel revolution, the flexible blade (5) that produces propulsive effort on it periodically stretches out gradually withdraws each again once then gradually.