CN106612902A - Oblique equidirectional double-weeder double-discharging wide mowing machine with irregular belt and without tension wheel drive - Google Patents

Abstract

The invention relates to an oblique equidirectional double-weeder double-discharging wide mowing machine with an irregular belt and without a tension wheel drive. A knot belt (26) is formed by forming a plurality of knots (26a) on a soft rope, a concave arc chute (28a) with a logarithmic spiral is arranged on a driving belt wheel (28), and the soft knots are contacted by utilizing the characteristic that pressure angles of the logarithmic spiral are equal everywhere, so as to reduce noise. The belt wheel with the logarithmic spiral concave arc chute is matched with the knot belt so as to reduce noise to form an irregular belt popularized and applied. Wide rear discharge and wide side discharge can be simultaneously arranged. An oblique manner is that the driving belt wheel drives connecting lines of circle centers of belt wheels of double weeders to be on the same line respectively by using belts, and an included angle beta of 15-45 degrees is formed between the same line of the circle centers of all belt wheels and the axes of front wheels and rear wheels of the mowing machine.

Description

Special-shaped belt is without the double careless wide cut hay mover of the tilting in the same direction pair of hay knife of tensioning wheel driving

Technical field

The present invention relates to a kind of for by garden, park and road, the hay mover that physical culture place cuts the grass on a lawn to be main to improve Purpose is to add safety circuit protection measures, makes and is conducive to mowing, noise reduction, the hay mover of environmental protection and safety, particularly a kind of Special-shaped belt is without the double careless wide cut hay mover of the tilting in the same direction pair of hay knife of tensioning wheel driving.

Background technology

Hay mower is widely used in the selected mode of hobby by people to mow.Due to the hay mover of hand push Mobility is poor, and in putting into practice when mowing, due to the anterior narrower swath of hay mover, so repeat to cut and leak the phenomenon cut often having Occur, benefit must be gone to cut, it is very arduous that operator's walking is mowed.If with sitting type, being also riding mower, then it is seated than station And feel different, but noise is big.If the prominent position that disseats of people, protects for original 3 seconds；Dan has rushed 9 meters or danger Jiu the meter per seconds of Suan 3.

Silencer is particularly the silencing equipment of put-put by internal combustion engine is widely used as, and is arranged on cylinder cover Valve port is reducing the noise of engine operation process.Countries in the world are to various traveling vehicles and the pole of the noise of hay mover Limit value has the regulation of correlation, and exhaust silencer is exactly such a device to reduce exhaust noise and life.The property of silencer Can evaluate mainly has the indexs such as acoustical behavior, aerodynamic quality and structural behaviour.It is low that the considerable part of internal combustion engine belongs to pulsating nature Frequency noise source, is answered and property and micro-perforated plate muffler using resistance or impedance more.The silencer of common internal combustion engine in particular for The silencer of put-put is three-chamber silencer mostly, and noise elimination effect is limited；And outside must have larger containment envelope, But effect of itself not eliminating the noise.Moreover, its shell temperature rise is higher, hot, affects safety.If plus anechoic trap ought have improvement.

Artificial foot protection is in standard STD.BSI EN 836-ENGL 1997 and GB 4706.78-2005/IEC 60335-2- 77：2002 have related request.The mowing height of most hay movers is that have many gears adjustable, this peace to operating the pin of pedestrian The security regulations of strict control must be pressed entirely.This typically does prosthetic foot test.But the prosthetic foot test location of palpus test daily is more, multiple Lid product quantity is very little.So that there is the hay mover of shipment, individually prosthetic foot safety is measured but by people, then all affect to cut Careless machine order.Improved idea often allows hay knife to be elevated at several millimeters of chassis.But because cutter is the local of elongate strip The sheet metal being folded over, due to tolerance, the reason for form and position tolerance and assembling cumulative errors, the point of a knife at two ends is in large quantities of actual productions In be difficult to ensure it is not high not low in a circumferential plane；Just in case occur thing difficulty avoid, but also to guarantee ten thousand none go out Safety problem.A kind of inventive concept is being hovered such as ghost：If with thick soft foamed plastics by mowing table and hay mover many places Outsourcing it, it is expected to receive the effect of security protection and noise abatement, be really that my observations may contain a grain of truth.It is many again to work as safer using safety circuit protection measures.

In order to avoid two knives adjacent gap caused by leakage cut phenomenon, two of original sitting type hay mover Knife, typically one in front and one in back.Figure 23 is refer to, this is that the transmission of one in front and one in back two knives of original sitting type hay mover is illustrated Figure, in figure, 23a is the belt pulley on the axle of the first knife, and 23b is the belt pulley on the axle of the second knife, and 11 is the belt of engine Wheel.The strip of two knives is mutually to hang down and reversely turn, so as to non-interference；It is two-sided V-belt, has also used three tensionings Wheel, more primary disadvantage is that before and after having because of knife, makes to cut and increase before and after disk, cause wheel base to increase, and whole machine is lengthened, car revolution half Footpath becomes big, and longitudinal potentiality coefficient of stability is deteriorated, and cost is added, and these are all undesirable.Another kind of original sitting type Two knives of hay mover, though not being tandem, referring to Figure 24, because two knives are reversely to turn, so as to non-interference, be Double-sided synchronous belt, also handy two synchronous tension wheels, this causes added cost.If driven without tensioning wheel and with ordinary straps, Being can reduces cost；But without tensioning, belt is not handy with regard to Tai Song, unless primary and secondary belt wheel spacing further significantly shortens；It is double Unavoidable ground will have and cut rate again and cut with leakproof between hay knife, if multiplex pair of hay knife is smaller than knife diameter, knife is reversely rotated, Knife interlocks, and uses synchronous cog belt, and problem is that not only tension structure is complicated, and synchronous cog belt and wheel cost are improved, and knife reversely revolves Then can not simultaneously be provided with the rear Lysimachia sikokiana and side Lysimachia sikokiana of wide cut.How to make belt not only will not be too loose without tensioning but also can reduce frictional resistance Reduce noise be world's hard nut to crack, objectively need a kind of special-shaped belt to emerge on market, for use in special-shaped belt without The double careless wide cut hay mover of the tilting in the same direction pair of hay knife of tensioning wheel driving.

The content of the invention

The present invention relates to a kind of for by garden, park and road, the hay mover that physical culture place cuts the grass on a lawn to be main to improve Purpose is to make resultant effect not only improve mowing, and operation is comfortable, variable speed, and noise reduction, environmental protection and safety, Er Qieshi are conducive to again In order to be able to reduces cost；But without tensioning, belt is not handy with regard to Tai Song, unless primary and secondary belt wheel spacing further significantly shortens； Unavoidable ground will have and cut rate again and cut with leakproof between double hay knives, and multiplex pair of hay knife is smaller than knife diameter；So require Double hay knives are reversely rotated, and require that double hay knives are staggeredly provided with certain phase place, and this requires the mutual invariablenes turning speed of double hay knives, Synchronous cog belt will be used；But problem is that not only tension structure is complicated, synchronous cog belt and wheel cost are improved, and more undesirable is The rear Lysimachia sikokiana and side Lysimachia sikokiana of wide cut can not be simultaneously provided with because double hay knives are reversely rotated, a kind of abnormity is objectively needed on market Belt emerges without the double careless wide cut hay mover of the tilting in the same direction pair of hay knife of tensioning wheel driving.The technical program is to there is safety circuit to protect The hay mover of shield measure and safeguard protection have the hay mover of noise reduction, and for pioneer, a kind of improved special-shaped belt is oblique without tensioning wheel driving Put the double careless wide cut hay mover of double hay knives in the same direction.Special-shaped belt knot belt (26) is to have beaten many knots on tightrope (26a), the concave arc groove (28a) of driving pulley (28) setting tool logatithmic spiral, using the pressure angle of logatithmic spiral spy equal everywhere Property the soft knot of contact in the hope of noise reduction.There is the hay mover of safety circuit protection measures, be to add having for safety circuit protection measures Noise reduction measure and the hay mover of hydraulic stepless speed change, it includes safety circuit protection measures, and connection two front-wheels are turned to Propons, connect two trailing wheels the driven back axle with hydraulic stepless speed change, the vehicle frame with dual fail-safe thick stick above four-wheel, car Have a mowing-apparatus of noise reduction below frame, the forward engine with anechoic trap in vehicle frame top and have noise reduction headstock hood (1) and There is the receipts grass box of noise reduction at the airstrainer (4) of noise elimination, the vehicle frame upper center vehicle seat for having a noise reduction to the rear, and car rear, Also saddle horse operator personal protection annex includes earplug, anti-sound cotton, earmuff and anti-sound head helmet；It is characterized in：There is noise reduction The connecting place of headstock hood 1 and the airstrainer 4 eliminated the noise, is provided with two car lights 3, both it is noted that viscous seam should not leak very much sound, more Note temperature rise, if being LED with lamp, temperature rise is out of question；Lamp is mentioned it is necessary to mention circuit；For safety, cut in riding Safety circuit protection measures, described safety circuit, mainly by single board computer and instrument plug-in unit (C4), engine must be installed on careless machine additional Plug-in unit (C1), expansion plugin (C5), ignition switch (C2), battery (B1), DC relay (C3), power output PTO switch (C6), electromagnetic clutch (C7), starter (ST) hangs case buzzer (U1), completely grass buzzer (U2), and first insures (F1), the Two insurances (F2), head lamp switch (S0), left headlamp (L1), right headlamp (L2), parking switch (S1), N gear switch (S2), Seat switch (S3), hangs grass cutting collection box switch (S4), and full grass alarm switch (S5) is constituted, described left headlamp (L1) and it is right before Illuminator (L2), respectively by multiple, such as 4 light emitting diodes are in series, and can also add resistance；Or it is each by multiple light emitting diode strings Parallel connection, such as 4 strings 4 are simultaneously respectively combined by 16 pipes, and, the arcuately covering of the fan arrangement of best multitube expands visual angle model with profit Enclose；Described seat switch (S3), has now made unconventional design of new design；Because original seat switch, although seat Seat switch is to disconnect when not sat down, and just can be started after driver sits down；If driver is left behind seat, there are the 3-5 seconds Single board computer postpone flame-out control, this sounds and seems very safe, and actually this is not so；Original seat switch is individual long-term very Scabrous hard nut to crack, because when actual job, meadow is jolted, hip are shakes, and seat is upper and lower, seat Switch is suddenly logical suddenly disconnected, and particularly when driver falls accidentally, the unit for having the 3-5 seconds postpones flame-out control, to wait the 3-5 seconds Just stop working afterwards；The hay mover speed of travel makes to take most at a slow speed one meter per second at 3.6 to 15 kilometers/hour, both, also to go out 3-5 rice, Or more than ten meters far could stop, it is conceivable that this is to the trick fallen or barrier how it feels；Although under normal conditions Habitually postpone to stop working using the unit for there are the 3-5 seconds and control, but in order to prevent unsafe hidden danger, it is necessary to new structure The reliable and less expensive seat switch of the non-conventional design of think of, described seat switch must be safe, when seat it is upper and lower When jitter amplitude is very big, seat switch can not be suddenly logical suddenly disconnected, and will at once disconnect in 0.1 second when disconnecting surely；This The seat switch that invention is provided solves this hard nut to crack；Referring to Figure 28, described seat switch (S3), mainly by being located at Long slide bar (S3-1) under seat (9), and it is located at the carbon brush (S3-2) of the guide rail matched with described long slide bar, and seat bullet Spring (9-2) is constituted, it is illustrated that position be generalized section when seat switch just disconnects；Because equipped with length under seat (9) Slide bar (S3-1), and be inserted in guide rail and cooperate with carbon brush, therefore long slide bar (S3-1) follows seat (9) to be servo-actuated up and down and insert Enter and pull out；Described long slide bar S3-1 is in long rod, if its section is with arc, such as circular or tubular, then with length The end face of the described carbon brush (S3-2) matched with arc section of slide bar also should be arc；If, and described long slide bar Section is square, such as square, polygonal, angle bar shape, channel steel shape, then with the plane section phase of described long slide bar The end face of the carbon brush (S3-2) matched somebody with somebody also should be plane, and to match, place's conductive contact is good；Note, described long slide bar (S3- 1) it is conductor in the middle part of, e.g. copper, and two ends are insulators, e.g. plastics, and described conductor is provided with soft Wire with switch (S3) a binding post be connected；And soft wire is also provided with described carbon brush with switch (S3) Another binding post connection；Back-moving spring is provided with after described carbon brush；Because described long slide bar (S3-1) and seat (9) with It is dynamic, and can be resetted by the seat spring (9-2) being mounted under seat 9 in the lump, also can set in the lower end of described long slide bar certainly Spring-assisted reduction；Therefore when people is seated on the seat, the width that the long rod conductor of described long slide bar (S3-1) is inserted and pulled through Although degree is very big, but long rod conductor always contacts good with carbon brush；And when people leaves seat, described long slide bar (S3-1) long rod conductor is just pulled up at once under all one's effort effect of seat spring (9-2), and its amplitude is more than shaking from side to side that people sits Amplification zone when, just disconnect long rod conductor and carbon brush, be only that the insulated part of long slide bar is contacted with carbon brush；Described length The joint of the insulated part of the bottom of the long rod conductor and long slide bar of slide bar (S3-1) can not have step or be uneven, into Preferably machine after type, such as turnning and milling or other processing methods, be beneficial to slip and do not block；In flameout state, ignition switch (C2) M, G are connected, and main circuit is shorted, and No. 2 black line short circuits of single board computer and instrument plug-in unit (C4) and engine plug-in unit (C1) are led Petrol engine is caused to stop working；In running status, the B of ignition switch (C2), L is connected, and main circuit is switched on, single board computer and instrument Plug-in unit (C4) is powered by No. 5 blue lines, the first end input high level of engine plug-in unit (C1), makes to be mounted in the carburetor of engine Electromagnetism valve events, and open Oil Switch；When accelerator gear is in N file locations, N gear switch (S2) disconnects, instrument display lamp It is bright；During parked state, parking switch (S1) is closed, and display lamp N is bright in instrument；When seat is not sat down, seat switch (S3) is broken Open, display lamp P is bright in instrument；If in the state of grass cutting collection box is not hung, hanging grass cutting collection box switch (S4) and disconnecting, grass cutting collection box warning lamp It is bright, while buzzer (U1) sends continuous alarm song；When in the state of battery (B1) undertension, main circuit is connected Brownout, battery indicator lamp is bright；When head lamp switch (S0) is closed, headlamp is bright；In starting state, ignition switch (C2) B, L, S are connected, and main circuit is switched on, and the function of operation can be realized；The dark red line at S ends accesses single board computer and instrument is inserted No. 4 line ends of part (C4), and the high level signal of No. 4 line ends is received by single board computer control, the output for controlling No. 3 line ends is high Level signal, accesses DC relay, turns on DC relay (C3), and power supply is flowed into starter by DC relay (ST), described starter (ST) is to set dc motor on the engine, and it passes through transmission mechanism and drags engine spindle Rise and turn, and start petrol engine；Start control, be to be discriminated whether to meet following 5 kinds of startup situations by single board computer：1. oily Door is in N shelves states, and N gear switch disconnects, and causes No. 7 line ends to fail to form loop by N gear switch；2. power output PTO is opened Close (C6) left end to close, always one group of switch is normally opened because of PTO switches, and one group of switch is normally closed, scheme upper switch (C6) left end that is set to and close, The disconnected state of right-hand member, now cutter separation does not work, and it is defeated that No. 11 line end blue lines switch (C6) left end cutter switch PTO by PTO Go out to form loop；3. seat is sat down, and seat switch is closed, and No. 8 line end orange lines export to form loop by seat switch；4. When vehicle is parked, parking switch S1 closures, No. 6 line end purple lines are exported by parking switch and form loop；5. grass cutting collection box or When back shroud hangs up, grass cutting collection box switch (S4) pressure is hung, the dark red line of No. 9 line ends switchs to form loop by extension grass cutting collection box；So, When ignition switch is in starting state, the dark red line input high level signal of No. 4 line ends is just sentenced to instrument plug-in unit by single board computer Whether do not meet 5 semaphore requests of the above, if met, DC relay can be made in No. 3 line end purple line output high level (C3) turn on, starter work；Flame-out control：Vehicle flame-out control after operation；There are 5 kinds of signals or 5 kinds of misfire signals；Letter Number 1. parking switchs, during non-parked state, parking switch OFF disconnects, and No. 6 purple lines fail to form loop output, and parked state is anti- It；Signal 2.N gear switch, not in N file locations, N gear switch ON closures, No. 7 line end gray lines form loop output to accelerator gear, Otherwise in N file locations；The seat switch of signal 3., when seat is not sat down, seat switch (S3) disconnects, and No. 8 line end orange lines fail Loop output is formed, on the contrary seat is sat down；Signal 4. hangs grass cutting collection box switch, if in the state of grass cutting collection box is not hung, hanging collection grass Case switch (S4) disconnects, and grass cutting collection box warning lamp is bright, while buzzer U1 sends continuous alarm song, No. 9 dark red line ends fail shape When hanging up into loop output, otherwise grass cutting collection box or back shroud；Power output PTO of signal 5. switchs (C6), because PTO is switched always One group of switch is normally opened, and one group of switch is normally closed, schemes the upper state for being set to the conjunction of switch (C6) left end, and now cutter is separated and do not worked, No. 11 line end blue lines switch (C6) left end cutter switch PTO and export to form loop by PTO；And work as PTO switches (C6) left end not Close, when right-hand member is closed, electromagnetic clutch (C7) adhesive, cutter is combined, No. 11 line end blue lines switch (C6) left end cutter and open by PTO Close PTO outputs to fail to form loop, now instrument upper cutter knife work display lamp is bright；5 kinds of misfire signals are：1. above-mentioned 5 signals In, when PTO starts, cutter is combined, and seat is not sat down, then the engine delay 3-5 seconds are flame-out；2. in above-mentioned 5 signals, collection grass Case or back shroud do not hang up properly, and grass cutting collection box warning lamp is bright, while buzzer U1 sends continuous alarm song, engine stops working immediately； 3. in above-mentioned 5 signals, when vehicle is parked, parking switch (S1) closure, PTO switch (C6) left ends do not conform to, when right-hand member is closed, electricity Magnet clutch (C7) adhesive, cutter is combined, then single board computer makes engine stop working immediately；4. in above-mentioned 5 signals, N shelves are not in During position, seat is not sat down, then the engine delay 3-5 seconds are flame-out；5. in above-mentioned 5 signals, accelerator gear is in N file locations When, under non-parked state, seat is not sat down, then the engine delay 3-5 seconds are flame-out；When vehicle is meeting above-mentioned one or more During misfire signals, by differentiation of the single board computer to above-mentioned signal, then by Control, the black line short circuit of No. 2 line ends is made, i.e., The flame-out line for making engine plug-in unit C1 exports ground connection, causes petrol engine to stop working, and time delay is by the sub- journey of single board computer time delay Sequence is realizing.Several controls are said below.Parking control is first said, when vehicle is parked, parking switch (S1) closure, gear is in N file locations, seat is not sat down, and PTO switch left ends are closed, and right-hand member does not conform to, and electromagnetic clutch (C7) not adhesive, cutter is not combined, Grass cutting collection box and back shroud are hung up, and engine is still in idling mode.Besides traveling control, under non-parked state, or sometimes Faulty operation and under the parked state that causes, gear is not in N gears and puts, and seat is sat down, and PTO switch left ends are closed, and right-hand member does not conform to, Electromagnetic clutch (C7) not adhesive, cutter is not combined, and grass cutting collection box and back shroud are hung up, and engine does not stop working；Then brake is said Control, under operation, steps on brake, and under non-parked state, gear is put in N gears, and seat is sat down, and PTO switches are left End is closed, and right-hand member does not conform to, and electromagnetic clutch (C7) not adhesive, cutter is not combined, and grass cutting collection box and back shroud are hung up, and engine is still It is in running order；Mowing control is said below, and under non-parked state, gear is not in N gears and puts, or gear is former in N shelves Ground is mowed, and seat sat down, and PTO switch left ends do not conform to, and right-hand member is closed, electromagnetic clutch (C7) adhesive, and cutter is combined, grass cutting collection box and Back shroud is hung up, and engine is still within working condition；Full grass warning system is finally described, when grass cutting collection box grass is full, Full grass alarm switch (S5) is depressed, and No. 10 line end brown line forms loop, now buzzing by full grass box alarm switch (S5) Device (U2) sounds the alarm, and obtains desired safe effect.

Special-shaped belt is without the double careless wide cut hay mover of the tilting in the same direction pair of hay knife of tensioning wheel driving, it is characterised in that its power Machine drives double hay knives (20) to use belt, without tensioning wheel, the belt knot belt (26) of special-shaped belt, and its engine Driving pulley (28) is driven, the driving pulley (28) with the knot belt (26) while respectively drive described pair of hay knife (20) Knife-band wheel (27), the described pair of hay knife spacing be not less than knife diameter；Described pair of hay knife rotating Vortex, the driving pulley is same When respectively with the line in the center of circle of the knife-band wheel of double hay knives (20) described in belt drives on the same line, it is and tilting to there is weight Cut area and do not leak and cut, tilting is exactly the driving pulley while respectively with the circle of the knife-band wheel of double hay knives (20) described in belt drives Wheel axis before and after line of the line of the heart on the same line and on the same straight line in the center of circle of each knife-band wheel and hay mover It is provided with the angle β of 15 to 45 degree；And it is provided with side straw outlet (29) and rear straw outlet (30) on the cutterhead of described pair of hay knife；Institute It is to have beaten many knots (26a) on tightrope to state knot belt (26), driving pulley (28) the setting tool logatithmic spiral it is recessed Arc groove (28a), soft knot is contacted in the hope of noise reduction using the pressure angle of logatithmic spiral characteristic equal everywhere.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, it is characterised in that its described driving pulley is simultaneously respectively with the center of circle of the knife-band wheel of double hay knives (20) described in belt drives Wheel axis are provided with before and after line of the line on the same line and on the same straight line in the center of circle of each knife-band wheel and hay mover The angle β of 16 to 25 degree.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, it is characterised in that its described driving pulley is simultaneously respectively with the center of circle of the knife-band wheel of double hay knives (20) described in belt drives Wheel axis are provided with before and after line of the line on the same line and on the same straight line in the center of circle of each knife-band wheel and hay mover 18 degree of angle β.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, it is characterised in that its described driving pulley is simultaneously respectively with the center of circle of the knife-band wheel of double hay knives (20) described in belt drives Wheel axis are provided with before and after line of the line on the same line and on the same straight line in the center of circle of each knife-band wheel and hay mover 18.3 the angle β of degree.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, it is characterised in that its section of the long slide bar of its seat switch is the arc for having equiangular spiral, and equiangular spiral tool pressure angle is everywhere Equal characteristic.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, it is provided with the horseshoe magnet of nano rare earth driving in back axle.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, the support of its vehicle frame with dual fail-safe thick stick is elastic NBR.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, its headstock hood for having noise reduction is that sound-absorbing foam plastics are filled out in HDPE Blow Molded Articles.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, its airstrainer eliminated the noise is aluminium net.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, the joint flash of its hay knife is provided with the top of multiple hexagonal pyramid shapes the wedge for being provided with micro through hole.

Usefulness：Resultant effect not only improves mowing, and operation is comfortable, and noise reduction, environmental protection and safety, Er Qieshi are conducive to again In order to be able to reduces cost；Without tension structure and synchronous cog belt, the rear Lysimachia sikokiana and side Lysimachia sikokiana of wide cut can be simultaneously provided with, meet city A kind of special-shaped belt of desirability emerges without the double careless wide cut hay mover of the tilting in the same direction pair of hay knife of tensioning wheel driving on field.Knot Belt (26) is that many knots (26a) have been beaten on tightrope, the concave arc groove (28a) of driving pulley (28) setting tool logatithmic spiral, Using the pressure angle of logatithmic spiral characteristic equal everywhere soft knot is contacted in the hope of noise reduction.The belt wheel of tool logarithm concave arc groove is with rope Skinning band is in the hope of invention that noise reduction is exactly a kind of special-shaped belt for having popularization and application.

Description of the drawings

With reference to the accompanying drawings and examples the present invention is further described.

Fig. 1 is the schematic diagram of the whole machine of hay mover.

Fig. 2 is the schematic diagram of the whole machine of hay mover for removing shell.

Fig. 3 is the schematic side view of the whole machine of hay mover.

Fig. 4 is the elevational schematic view of the whole machine of hay mover for removing shell.

Fig. 5 is the schematic side view of the height-regulating mechanism of the whole machine of hay mover for removing shell.

Fig. 6 is the schematic side view of the position of transferring the files of height-regulating mechanism.

Fig. 7 is the schematic diagram of wedge (7b).

Fig. 8 is the schematic diagram of the S-hook (17) for receiving grass box.

Fig. 9 is the schematic diagram of fluted disc (8a).

Figure 10 is the bel-drivenn elevational schematic view of the hay mover for removing shell.

Figure 11 is the schematic diagram of the headstock shell (1) for having honeycomb wedge and silencing vibration-damping material.

Figure 12 is the schematic diagram of the body shell (10c) for having honeycomb wedge and silencing vibration-damping material.

Figure 13 is the generalized section of fluted disc (8a).

Figure 14 is a kind of schematic diagram of hay knife (20).

Figure 15 is the schematic elevation view of fluted disc (8a).

Figure 16 is the enlarged schematic partial view of hay knife (20).

Figure 17 is the schematic diagram for cutting off face of wedge (7b).

Figure 18 is the schematic diagram of anechoic trap and silencer containing hush tube (7) and tank (2).

Figure 19 is the schematic diagram of the inner tube (7a) of hush tube (7).

Figure 20 be dismantle a half-shells driven back axle (24) schematic elevation view.

Figure 21 is the schematic elevation view for cutting disk (18) for having honeycomb wedge (7b) and silencing vibration-damping material (7f).

Figure 22 is the schematic diagram that the one side Timing Belt (23) of two knives of driving in the same direction is equipped with tensioning wheel (23c).

Figure 23 is the schematic diagram that the double V-belt of reverse drive one in front and one in back two knives is equipped with 3 tensioning wheels.

Figure 24 is the schematic diagram that the double-sided synchronous belt of two knives of reverse drive is equipped with 2 tensioning wheels.

Figure 25 is, away from for A, to draw and weigh showing for swath B with diagram optimum seeking method by two knife gyroaxises i.e. belt wheel center (23a, 23b) It is intended to.

When Figure 26 is not just touched by two knives with diagram optimum seeking method, the schematic diagram of maximum weight swath B is obtained.

Figure 27 is circuit diagram.

Figure 28 is the seat switch section simplified schematic diagram for having a long slide bar S3-1 and carbon brush S3-2 being located under seat.

Figure 29 is to drive the double careless wide cut hay mover schematic diagram of tilting in the same direction pair of hay knife without tensioning wheel ordinary straps.

Figure 30 is to drive schematic diagram before the double careless wide cut hay mover of tilting in the same direction pair of hay knife without tensioning wheel ordinary straps.

Figure 31 is the schematic diagram of a kind of special-shaped belt of the belt wheel with knot belt for having logarithm concave arc groove.

As illustrated, in figure：

1. it is headstock hood；2. it is tank；3. it is car light；4. it is the airstrainer eliminated the noise；6. it is two front-wheels；6b. is Two trailing wheels；7. it is hush tube；7a. is the inner tube of hush tube；7b. is wedge；8. it is steering wheel；8a. is fluted disc；9. it is water Groove；10. it is the receipts grass box of noise reduction；10c. is vehicle body；11. is engine spindle and belt pulley；12. is foot brake device；13. is hand Brake；14. is drive shift；14b. is reverse drive gear；15. is to heighten handle；16. is to be located at 2 after the vehicle frame hangers for having pin； 17. is the S-hook for receiving grass box；18. is to cut disk；18a. is front dead axle；18b. is front moving axis；18c. is rear dead axle；18d. is Moving axis afterwards；18h. is steel wire rope；18g. is sector gear；18f. is ratchet；20. is hay knife；20a. is wind wing cutting edge；21. It is driving belt of the engine to knife；22. is the belt of the belt pulley on engine to the rotary shaft of the first plunger displacement pump of back axle； 23. is the one side Timing Belt for driving two knives；23a. is the gyroaxis i.e. belt wheel center of the first knife；23b. is the revolution of the second knife Axle is belt wheel center；A. be two knives gyroaxis i.e. belt wheel center (23a, 23b) away from；B. it is weight swath B；D. it is strip-shaped cutter (20) Two point widths be diameter D；23c. is tensioning wheel；23d. is the tensioning support for filling tensioning wheel；23e. is the fixation for being tensioned support Bolt；23f. is regulating bolt；23g. is to set up mule mother；23h. is fixed minor adjustment frame；24. is band hydraulic stepless speed change Driven back axle；24b. is the clutch that hydraulic control valve group connects the first plunger (24b)；24c. is the second plunger displacement pump (24c) With the stepless speed changing mechanism and brake apparatus of hydraulic control valve group；24d. is the change-speed gearing of the second plunger displacement pump；24e. is idler gear； 24h. is the star-wheel of planet wheel assembly；24g. is gear wheel；24f. is intermediate speed pinion；24k. is inlet valve；24j. is permanent Magnet；C4. it is single board computer and instrument plug-in unit；C1. it is engine plug-in unit；C5. it is expansion plugin；C2. it is ignition switch；B1. it is to store Battery；C3. it is DC relay；C6. it is power output PTO switch；C7. it is electromagnetic clutch；ST. it is starter；U1. it is to hang Case buzzer；U2. it is full careless buzzer；F1. it is the first insurance；F2. it is the second insurance；S0. it is head lamp switch；L1. it is left Headlamp；L2. it is right headlamp；S1. it is parking switch；S2. it is N gear switch；S3. it is seat switch；S4. it is to hang grass cutting collection box to open Close；S5. it is full careless alarm switch；LED. it is light emitting diode；9. it is seat；S3-1. it is long slide bar；S3-2. it is carbon brush；9-2. It is seat spring；26. knot belts；28. driving pulleys；27. knife-band wheels；β. angle；29. side straw outlets；Straw outlet after 30.； 26a. knots；The concave arc groove (28a) of 28a. logatithmic spirals.

Specific embodiment

Adopt the technical scheme that the hay mover there are safety circuit protection measures and safeguard protection have the mowing of noise reduction Machine is updated for pioneer and perfect drives the double careless wide cut hay mover of tilting in the same direction pair of hay knife without tensioning wheel ordinary straps.

There is the hay mover of safety circuit protection measures, be that existing security circuit has noise reduction measure and hydraulic stepless speed change again Hay mover, in addition to safety circuit protection measures, also including the propons for turning to of two front-wheels of connection, connects the band of two trailing wheels The driven back axle of hydraulic stepless speed change, the vehicle frame with dual fail-safe thick stick above four-wheel has the mowing dress of noise reduction below vehicle frame Put, the forward engine with anechoic trap and the headstock hood 1 for having noise reduction and the airstrainer 4 eliminated the noise, vehicle frame above vehicle frame The upper center vehicle seat for having a noise reduction to the rear, and there is the receipts grass box 10 and vehicle body 10c of noise reduction at car rear；And operate for saddle horse The personal protection of person and the earplug be furnished with, anti-sound cotton, earmuff and all annexes of anti-sound head helmet, to improve integrated quality.Described rides The propons for turning to of two front-wheels of connection included by hay mover is taken advantage of, is included between two front-wheels 6 by known parallel Quadrangle steering mechanism, i.e., the left cambered axle for being connected by a connecting rod and right cambered axle, the left cambered axle upper end is fixed by a joint arm In one end of control-rod, the other end of control-rod is then connected on the gear with steering wheel 8 and tapered fluted disc 8a, therefore just In manipulation direction.Such as Fig. 9, shown in Figure 10, Figure 13 and Figure 15, described fluted disc 8a is characterized in that：The tooth of its fluted disc 8a is interior Tooth, particularly inner toothed surface are tapered, and do not have originally；It is because external tooth tends to have resigning phenomenon to external tooth, then not interior if external tooth The external gear of gear and steering wheel matches somebody with somebody to obtain so tacit agreement；Again because being now improved to tapered or chamfering, just it is more easy to and oblique tooth phase Match somebody with somebody.Its taper is less than 30 degree, preferably 18 degree；Because fluted disc 8a is to be horizontally mounted, to connect parallelogram steering mechanism, and The axis of the gear of steering wheel 8 be with plumb line it is angled, usually 18 degree, thus be easy to operation；Gap is adjusted by fact, and Plus grease lubrication.

The band hydraulic pressure of the two trailing wheel 6b of connection included by the described hay mover for having noise reduction measure and hydraulic stepless speed change The driven back axle 24 of variable speed, as shown in figure 20, this is to remove multiple connecting screws and half back axle, and surplus half back axle And exposing two plunger displacement pumps of inside and the schematic elevation view of hydraulic control valve group and multiple gears, described back axle is included and is located at two Two semiaxis between rear wheel, are provided with differential mechanism between two semiaxis, and thus differential mechanism is sequentially connected upwards the second plunger The stepless speed changing mechanism and brake apparatus of pump 24c and hydraulic control valve group, then the clutch of Jing hydraulic controls valve group the first plunger displacement pump 24b of connection Structure, then via the belt 22 of the belt pulley in the rotary shaft of the first plunger displacement pump, transmit the power of engine spindle 11, its feature It is：The differential mechanism include a pair of axle shaft gears, the planet wheel assembly between axle shaft gear, the star-wheel 24h of planet wheel assembly is most Handy 2 star-wheels, and each tooth number of star is 12；Planet wheel assembly is erected on a larger gear wheel 24g, preferably its tooth Number is 53；Described gear wheel 24g is engaged with intermediate speed pinion 24f, and preferably its number of teeth is 11；Described intermediate speed pinion 24f Coaxial with idler gear 24e and connect firmly, preferably its number of teeth is 48；Described idler gear 24e and the gear teeth of the second plunger displacement pump Wheel 24d engagements, preferably its number of teeth is 13, so defining decelerator and reinforcement, and defines differential mechanism and makes turning flexible.Institute The plunger of the second plunger displacement pump stated is most handy 5, more than the plunger of the first plunger displacement pump, and the cylinder diameter of each plunger is just larger, therefore For oil motor, output torque is just larger.Because the coaxial brake apparatus that is provided with of the change-speed gearing of the second plunger displacement pump Brake disc, is provided with friction plate, brake bar and spring and constitutes brake apparatus on the back axle 24 near brake disc, therefore is easy to It is connected with foot brake device 12 and Hand brake apparatus 13 in the middle part of vehicle frame；The foot brake device 12 and Hand brake apparatus 13 of this car is actually same A set of mechanism.In hydraulic control valve group between the second plunger displacement pump and the first plunger displacement pump, Shift lever is provided with, on the one hand regulation and control pilot operated valve device On the other hand oil inlet and outlet in group, changes the angle on plunger head inclined-plane of the first plunger displacement pump changing output speed, therefore just In being connected with drive shift 14 and reverse drive gear 14b in the middle part of vehicle frame, to constitute stepless speed changing mechanism；When neutral gear, the first plunger displacement pump The angle on plunger head inclined-plane be zero, idle running and without output, the first plunger displacement pump serves the effect of clutch；The He of drive shift 14 Reverse drive gear 14b is connected, and manipulates stepless speed changing mechanism；When drive shift 14 is stepped on, between the second plunger displacement pump and the first plunger displacement pump Hydraulic control valve group on Shift lever, regulate and control hydraulic control valve group on oil-in；Step on deep, make the big then speed of oil-in fast；Step on shallow, The little then speed of oil-in is slow, therefore realizes stepless shift；When reverse drive gear 14b is depressed, the second plunger displacement pump and the first plunger displacement pump it Between hydraulic control valve group on Shift lever reversely, make oil inlet and outlet in regulation and control hydraulic control valve group reversely, invert the second plunger displacement pump, drive Dynamic decelerator and differential mechanism reversion below, is allowed to move backward.Because the second plunger displacement pump is actually when oil motor here, its Change-speed gearing 24d is driven to engage with series of gears, so as to drive two semiaxis and trailing wheel 6b.In the second plunger displacement pump and the first post In hydraulic control valve group between plug pump, parking bar is additionally provided with, regulates and controls the interior hydraulic fluid port of hydraulic control valve group, when parking position is pulled, parking bar Inside D-shaped bar hinder in hydraulic fluid port.Inlet valve 24k is provided with inside described driven back axle 24 to connect outer oil box, therefore Convenient lubrication；Permanent magnet 24j is additionally provided with described driven back axle 24, or uses horseshoe magnet, because of You Ci rotation streams Effect is good, or is located at many places, therefore beneficial to holding the iron filings that each steel and iron parts are mixed in oil Jing after permanent abrasion.

Again because have above the four-wheel included by the hay mover of noise reduction measure and hydraulic stepless speed change with dual fail-safe thick stick Vehicle frame, as shown in Fig. 2 being provided with bumper in front of car, is characterized in that：Described bumper is parallel bars, or three, or more It is many, and be that two is curved per thick stick, support is supported at middle straight pipe or square tube, and at least two；Parallel bars should be protected more than single Danger；Used as improvement, described support is not rigidity, but elasticity, such as with spring, or elastomeric material such as rubber or poly- ammonia Fat, therefore more conducively buffer.

Again because there is the mowing for having a noise reduction below the vehicle frame included by the hay mover of noise reduction measure and hydraulic stepless speed change Device, including height adjusting part point and mowing part；Referring to Fig. 5, height adjusting part point, by parallelogram principle, by being located at Front dead axle (18a) and rear dead axle 18c on vehicle frame, and be located at the front moving axis 18b and rear moving axis 18d cut on disk 18 and be attached thereto Dynamic rod member, and for the steel wire rope 18h of pulling, sector gear 18g, ratchet 18f and heightens handle 15 and is constituted, its feature It is：The described front dead axle 18a being located on vehicle frame and rear dead axle 18c, and it is located at the front moving axis 18b and rear moving axis 18d cut on disk It is four summits of parallelogram, its corresponding side is parallel and equal two-by-two, so, in any case by heightening handle 15 pulling steel wire rope 18h, and by sector gear 18g, ratchet 18f heightening gear to several, the front dead axle 18a on vehicle frame Always it is parallel with the front moving axis 18b and rear moving axis 18d that cut on disk, so as to fundamentally ensure with the line of rear dead axle 18c Cut disk upper and lower translation and normal work；But the length of steel wire rope 18h, and sector gear 18g are still mixed up when practical With the allotment of ratchet 18f.It is with power skin though entirely cut disk to be almost in each gear is parallel, but has movement in front and back It is the center of circle with 21 engine spindles 11 ined succession, percutaneously passes to moving for radius apart from longitudinal projection for the first tool rest with 21 , and belt 21 also has difference in height, is oblique, fortunately can also use.As can be seen from Figure 6, because heightening the described sector of gear Gear 18g has multiple tooth, and now preferably 10 teeth, there is 10 grades, for example, can cut height to adjust in 10-100mm；Or by conventional 25-85mm, point Several shelves preferably press customer requirement.Referring to Figure 10, from engine spindle 11, percutaneous band 21 passes to the first knife to the power of mowing part Seat, then synchronized band 23 passes to the second tool rest, therefore be easy to drive hay knife 20 to work；As improvement, referring to Figure 14 and Figure 16, institute The hay knife 20 stated is provided with two or more wind wings, and in order to cut off grass is twined, and multiple cutting edge 20a are provided with described wind wing, The angle on the two sides of described cutting edge is not right angle, preferably less than 60 degree of acute angle；It is further used as improving, described mowing Knife 20 is provided with multiple hexagonal holes, or further improves, and described hay knife 20 is provided with multiple such as honeycombs or such as wedge 7b Convex-concave, therefore beneficial to change flow through knife high speed Tiny pore audio frequency i.e. noise reduction.

The graphical designs and preferred method of thinking of the mowing part of the described mowing-apparatus for having a noise reduction, are the one of the present invention Item significant contribution.As it was previously stated, the scheme of one in front and one in back two knives of original sitting type hay mover, is two-sided V-belt, Three tensioning wheels are also used, before and after having because of knife, has been made to be cut and increase before and after disk, caused whole machine to lengthen.Another kind of original sitting type cuts Two knives of careless machine, are more expensive double-sided synchronous belts because two knives are reversely to turn though not being tandem, also handy Two synchronous tension wheels, this causes added cost.Can find with two knives, not be one in front and one in back, not make to cut and increase before and after disk, And reversely do not turn, without more expensive double-sided synchronous belt, grass does not leak, and what method is the approach that knife is not touched useAnswer is yes.With Diagram optimum seeking method：Two point widths for taking strip-shaped cutter 20 are diameter D, the gyroaxis by two knives be belt wheel center (23a, 23b) away from for A, draws 2 circles, and referring to Figure 25, the intersecting front part filling hachure of two circles is represented, width B is exactly careless leak-free weight swath B；Make again to justify as diameter with A, it is right angle that angle of circumference is permanent, is mutually hung down because setting two knives, and is synchronous axial system, therefore two knives are circumference Two sides at angle, can separately draw multiple angles of circumference and come preferred.There is formula：B=D-A.Referring again to Figure 26, A is changed, first by optimum seeking method 0.618 method takes band wheelspan A=0.618D, mapping, then is gradually increased A, is close D to the maximum；It is when knife is touched soon shown in figure Maximum weight swath B and minimum A.A affects the size for cutting disk 18.Again by formula：

Designed ratios N=A/D are taken, in general, is preferred in 74%-92%.

74%, the long D=530 of knife are for example taken, cutter heart is away from A=390；Swath F=D+A=530+390=920, it is somewhat few, Wish a little bigger good；Weight swath B=D-A=140, it is enough.

As another embodiment, designed ratios N=A/D=92% are taken, the long D=530 of knife, cutter heart is away from A=490；Then mow Swath F=D+A=530+490=1020 of machine, it is a little bigger, it is good；Weight swath B=D-A=40, also can use.

Because grass is that left and right is shaken, and cut disk and overwhelmed by askew allowing if taking weight swath B=D-A≤20, it is likely that leakage grass , just have once in a while sometimes cut less than grass.When practical, the gap for cutting disk inner circumferential with point of a knife is preferably in more than 3mm.

Because using PROE-WILDFIRE softwares, therefore easily variable can draw, other softwares can be also used certainly.

Again because of the band anechoic trap that the vehicle frame top included by the hay mover for having noise reduction measure and hydraulic stepless speed change is forward Engine and have the vehicle cover of noise reduction, as shown in Fig. 4 and Figure 10, to see clearly to exempt to block to save engine is drawn；Anechoic trap Enlarged drawing is as shown in Figure 18 and Figure 19；The anechoic trap that the present invention is provided, containing hush tube 7 and tank 2；Described hush tube 7 In the described tank 2 of lower bend immersion, therefore there is cooling effect.The effect of described tank is to kill two birds with one stone, in addition to cooling, also With water for weight；Because it is located at hay mover front portion, therefore there is counterweight effect.The water of tank face the used time just plus, because this disregards fortune Defeated weight；Plus water should not add tankful, have half just.The lower end of the lower bend of described hush tube 7 goes out with silencer Mouth connects.Described tank 2 is characterized in that its side is provided with through hole, to match with the lower bend of described hush tube 7； Its bottom is provided with dewatering outlet.Multiple wedge 7b arrays of the described hush tube 7 by multistage inner tube 7a and connection sheet and containing micropore Outer tube is constituted.There is inner tube in outer tube, described inner tube 7a is characterized in that and which is provided with cellular hexagon eyelet, or polygon Eyelet, or oval and oval eyelet；And the inner tube length of multistage is that length is different and alternate；For example there is one section to be 3/4ths The longer inner tube of wavelength multiplying factor, then it is adjacent be only its quarter-wave multiplying factor inner tube.In addition, described inner tube The distribution of multiple eyelets that 7a is provided with is not uniform but has density；One section positioned at 3/4ths wavelength multiplying factors is managed On the position of a quarter pipe range at middle part be closeer eyelet, be thinner eyelet on the pipe of remaining part；And its hole Eye is characterized in that hexagon eyelet or many prismatics；The feature of the inner tube of the quarter-wave multiplying factor of described eye The distribution for being the multiple eyelets which is provided with is not uniform but has density；Eight of middle part on this section of pipe/ The position of three pipe ranges is closeer eyelet, is thinner eyelet on the pipe of remaining part.Described eyelet be it is polygonal, most It is well hexagonal；Used as improvement, or its eyelet is characterized in that many prismatics, or six prismatics, or have a fabrication flange It is polygonal；Or its eyelet is characterized in that the described wedge 7b for having a micropore, therefore with quarter-wave effect and density Wave effect and honeycomb effect.On the face of described outer tube 7b, many stamping projections are provided with, are polyhedral cone in multi-prism taper Body shape, particularly hexagonal pyramid shape, referred to as wedge 7b；Described wedge is characterized in that it is six from the root of the punching press of metallic plate It is angular, it is to reduce from root to top, substantially its breadth depth ratio is one to one, or to one to one point five.And in described hush tube Face on each described in hexagonal pyramid shape wedge at the top of be provided with micropore, its approximate diameter is advisable at 0.1 to 0.5 millimeter. On the face of described inner tube 7a, used as improvement, or its eyelet can also change and be set to many stamping projections, in many ribs Taper is that multiaspect is cone-shaped, particularly hexagonal pyramid shape, alternatively referred to as wedge, but its breadth depth ratio is One to naught point eight, or to a bit Four to one.Many wedges constitute the how stupefied structure of wedge, and its arrangement in each face is that the hexagonal of honeycomb is polygonal, or with Machine, or oval, Long Circle, or irregular convex-concave shape；In hush tube or can be half filled with metallic fiber or heatproof Nonmetallic materials；Or can the half sound-absorbing material such as sound-absorbing porous material filled with resistance to middle temperature, or flexible material and film material. Or attach, or be directly molded, or add azoic foaming agent bi-component in mould to make outer hard interior sending out and solidify.Described porous material is such as Fiber-like, foam class, particulate species are alone good, and more or less mixing is using good.Also usable fibers class such as rock wool, or glass Silk, or mineral wool is particularly super glass wool；Or foam class is used, by wanting fireproof at warmware；Or with particulate species such as expanded pearlite Rock, porous clay brick, and the fabric of heatproof, felt is filling or attach；Therefore beneficial to improved performance index, and reach comprehensive composition The preferable purpose of noise reduction.Multiple material has the low-and high-frequency sound absorption efficiency of complementation.Many wedges, have added area of dissipation； Particularly many wedges for having a micropore, not only there is the micropore effect of noise reduction, and have the latent effectiveness of hypereccrisia gas-liquid.Make To extend, many wedges can also reverse-drawing i.e. outwardly adding area of dissipation.Can also assemble both between silencer and engine Make the pad that heat insulating mattress makees beam again.Can also assemble between the outlet of silencer and described hush tube 7 and both make heat insulating mattress Make the pad of beam again.The anechoic trap that the present invention is provided, is provided with numerous large-area wedge regions, has micropore containing numerous Wedge, have wedge resistance drop effect and micropore effect.The beneficial effect that causes of anechoic trap that the present invention is provided is：Increase noise elimination effect Fruit and the combination property such as insertion loss of lifting silencer, sound transmission loss, noise abatement amount and attenuation, and cooling.One kind invention Design is being hovered such as ghost：If being improved with thick soft foamed plastics, or conduct, above-mentioned various silencing vibration-dampings are comprehensively utilized Material and with numerous large-area wedge regions, is located at mowing table 18, referring to Figure 21, and hay mover many places such as headstock hood 1, Referring to Figure 11, such as vehicle body 10c, referring to Figure 12, also what vehicle frame upper center was to the rear has the vehicle seat of noise reduction, and there is drop at car rear The receipts grass box made an uproar, it is expected to receive the effect of security protection and noise abatement.In addition, for the personal protection of saddle horse operator, annex of the present invention is furnished with ear Plug, anti-sound cotton, earmuff and anti-sound head helmet.Both sides are provided with the artificial foot protection plate containing turning joint also in the middle part of hay mover.Described The artificial foot protection plate containing turning joint that both sides are provided with the middle part of hay mover is made up of protective plate and turning joint；It is characterized in that Described protective plate is the sound absorption material selected, and left, right each one；But when to lay side Lysimachia sikokiana plate on right side sometimes, just only Artificial foot protection plate is laid on the left side；What described protective plate profile was preferably foot-shape has a bigger waveform in two, therefore strengthens Warning association and artistic image that foot is careful；Described protective plate is preferably with relatively soft but not too soft shore hardness In 65 to 95 materials such as rubber, polyurethane or polyvinyl chloride making main sheet material, when its usefulness is that zoom level carrys out work, For example it is placed on when cutting 18 both sides of disk, adagio is less susceptible to wound grass, and soft board is more convenient for vanning.Described protective plate can also use hard Material.Described protection edges of boards are provided with mobilizable hinge, do not limit one or more or use flexible material, then be aided with it is suitable can and Only determinate spacing, as long as decontrol can described protective plate, can work and turn to get on to be easy to case just can be with.As Extend or improve, described protective plate also can be set to removably, put during work, remove when not working.In order to prevent in not So, put prevention first, it is ensured that the whole machine of a large amount of shipment can be transferred through prosthetic foot detection entirely.Described protective plate be also used in fuselage other Place, the top of such as two trailing wheels is protected.Used as another embodiment, it be not spacious for also can use acoustic material that car load is made It is fluffy, but on have top, or totally-enclosed car type, shone with profit gear, or full sound insulation.Head fuselage can use everywhere, foamed material, Sound-absorbing porous material, such as foam cement or foamed plastic, or flexible material and film material, or the blowing part of bilayer；Or attach, Or be directly molded, or add azoic foaming agent bi-component in mould to solidify to form outer hard interior foaming；Or bilayer has been blow molded into The various big part of large-area honeycomb and wedge sample convex concave, such as head and fuselage.To sum up, thus have the beneficial of various noise reducing efforts Effect：Reflected sound is not only reduced using the different characteristic impedance of sound-absorbing material, and it is former using aperture low frequency diffraction shadow zone Reason, if sound barrier is weakening high-frequency noise.Described earplug pre-mould mode earplug is many, and with flexible plastic or soft rubber one is molded as Fixed geometry；Or use foamed plastics earplug；Therefore have certain sound insulation property and comfortableness.Again because described anti-sound cotton is to use Super glass wool is made through Chemical softnessprocess, and most handy 1-3 micron diameters are preferred；And make fritter taper, therefore just In plug in one's ear；The sound insulation of anti-sound cotton is better than common cotton effect, and sound-insulation value is improved with the increase of noise frequency, therefore right Isolation high-frequency noise is more effectively, not only without prejudice to linguistic relationships using anti-sound cotton, and speech articulation has been carried It is high.Described earmuff is the ear protection device of earphone class, or uses music earmuff, therefore can increase the enjoyment of work.Described anti-sound head Helmet is motorcycle helmet class, therefore also security effect.

Again because described vehicle frame upper center it is to the rear have the vehicle seat of noise reduction also characteristic：Vehicle seat is surrounded by thick noise reduction Foamed material, may move before and after vehicle seat；Vehicle seat is provided with when people sits down and connects, and just obstructed limit protection is switched when people leaves；Or It is non-contacting human inductor i.e. sensor, therefore also has protective effect.There is the receipts grass box 10 of noise reduction at described car rear, is provided with 2 hooks 17, is characterized in that S-shaped, therefore are easy to hang over 2 be located at after vehicle frame and have on the hanger 16 of pin, and pin is actively to be stuck in S In shape, therefore it is easy to artificial gyration to become reconciled and take to fall grass.The one side Timing Belt for making two knives drive in the same direction as previously described, in car Between in find too tight, and bad install on a production line；Such as korean pine, but easily once in a while leapfrog and it is asynchronous.As improvement, in order to The good installation of one side Timing Belt 23 for driving two knives in the same direction is made, referring to Figure 22, tensioning wheel 23c, described tensioning wheel 23c is equipped with With one side Timing Belt 23 without face, so described tensioning wheel is anodontia circle wheel；Tensioning wheel is mounted in tensioning support 23d On, support 23d is actively adjustable as balance pivot with fixed bolt 23e for tensioning, therefore can be by fixed minor adjustment frame 23h Regulating bolt 23f and set up nut 23g estimating, therefore facilitate installation, and eliminate asynchrony phenomenon.

Used as improvement, car load is made with acoustic material be not open, but on have a top, or totally-enclosed car type Words, or make large-scale overall car, can shine beneficial to gear or full sound insulation；Or spliced with several bulks.Head fuselage is everywhere or whole or spelling is all right. Headstock hood 1 and vehicle body 10c shown in Figure 11 and Figure 12, also can it is whole or spell.For example vehicle body 10c can be divided into before and after two major parts, after It is a bulk of to divide the Shang great Gai that plugged together and make to receive grass box.Head fuselage is everywhere or whole or spell and all right be also primarily referred to as anti-noise structure , such as steel plate molding is stretched as head fuselage and the ceding of Taiwan of honeycomb wedge convex concave, or iron plate attaches the honeycomb of injection molded The big part of wedge convex concave, then with described acoustic material such as foamed material, sound-absorbing porous material, foam cement or foamed plastic, or Flexible material and film material；Or attach, or be directly molded, or add azoic foaming agent bi-component in mould, it is outer hard interior to be formed Foaming and solidify such as the structure of portable refrigerator；Or bilayer is blow molded into the various of large-area honeycomb and wedge sample convex concave Big blowing part, such as head and fuselage, then attach thick foamed plastic.To sum up, thus have the beneficial effect of various noise reducing efforts：It is not only sharp Reflected sound is reduced with the different characteristic impedance of sound-absorbing material, and using aperture low frequency diffraction shadow zone principle, if sound barrier comes Weaken high-frequency noise.There are the headstock hood 1 of noise reduction and the connecting place of the airstrainer 4 eliminated the noise there are two car lights 3, both it is noted that viscous Seam should not leak very much sound, more it is noted that temperature rise；If being LED with lamp, temperature rise is out of question；Certainly, it is also possible to other classes Lamp.Lamp is mentioned it is necessary to mention circuit；For safety, safety circuit protection measures must be installed additional on riding mower.Referring to figure 27, described safety circuit, mainly by single board computer and instrument plug-in unit C4, engine plug-in unit C1, expansion plugin C5, ignition switch C2, Battery B1, DC relay C3, power output PTO switch C6, electromagnetic clutch C7, starter ST, 2 buzzers, first Insurance F1, the second insurance F2, head lamp switch S0, left headlamp L1, right headlamp L2, parking switch S1, N gear switch S2, seat Bit switch S3, hangs grass cutting collection box switch S4, and full grass alarm switch S5 is constituted, it is characterized in that：Before described left headlamp L1 and the right side Illuminator L2, respectively by multiple, such as 4 light emitting diodes are in series, and can also add resistance；Or it is each by multiple light emitting diode strings simultaneously Connection, such as 4 strings 4 are simultaneously respectively combined by 16 pipes, and, the arcuately covering of the fan arrangement of best multitube expands angular field of view with profit； Described seat switch S3, has now made unconventional design of new design；Because original seat switch, although seat is not sat Seat switch will be to disconnect when lower, just can be started after driver sits down；If driver is left behind seat, there is the veneer of 3-5 seconds Machine postpones flame-out control, and this sounds and seems very safe, and actually this is not so；Original seat switch has long-term very scabrous Hard nut to crack, because when actual job, meadow is jolted, hip are shakes, and seat is upper and lower, and seat switch is to neglect Logical to neglect what is broken, particularly when driver falls accidentally, the single board computer for having the 3-5 seconds postpones flame-out control, just puts out after waiting the 3-5 seconds Fire；The hay mover speed of travel makes to take most at a slow speed one meter per second at 3.6 to 15 kilometers/hour, both, also to go out 3-5 rice, or more than ten Rice far could stop, it is conceivable that this is to the trick fallen or barrier how it feels；In order to prevent unsafe hidden danger, just The reliable and less expensive seat switch of the non-conventional design of new design is needed, described seat switch must be safe, when When the upper and lower jitter amplitude of seat is very big, seat switch can not be suddenly logical suddenly disconnected, and will be in 0.1 second at once when disconnecting surely Disconnect；The seat switch that the present invention is provided solves this hard nut to crack；Referring to Figure 28, described seat switch S3, mainly By the long slide bar S3-1 being located under seat 9, and it is located at the carbon brush S3-2 with the guide rail of long slide bar matching, and seat spring 9-2 Constituted, it is illustrated that position be generalized section when seat switch just disconnects；Because seat is equipped with long slide bar S3-1 9 times, And be inserted in guide rail and cooperate with carbon brush, therefore long slide bar S3-1 follows seat to be servo-actuated about 9 and be inserted and pulled through；Described Long slide bar S3-1 is in long rod, if its section is with arc, such as circular, tubular, then with the band arc described in long slide bar The end face of the carbon brush S3-2 that tee section matches also should be arc；, and if the section of long slide bar is square, such as square, It is polygonal, angle bar shape, channel steel shape, then the end face of the carbon brush S3-2 for matching with the plane section described in long slide bar also should be Plane, to match, place's conductive contact is good；In the middle part of described long slide bar S3-1 it is conductor, e.g. copper, and two ends It is insulator, e.g. plastics, and described conductor are provided with soft wire and are connected with binding post of switch S3； And soft wire is also provided with described carbon brush and is connected with another binding post of switch S3；It is provided with multiple after described carbon brush Position spring；Because described long slide bar S3-1 and seat are servo-actuated, and can be resetted by the seat spring 9-2 being mounted under seat 9 in the lump, Certainly also spring-assisted reduction can be set in the lower end of long slide bar；Therefore when people is seated on the seat, the length of described long slide bar S3-1 Although it is big again that rod conductor is inserted and pulled through amplitude, always long rod conductor contacts good with carbon brush, and work as people and leave seat When, the long rod conductor of described long slide bar S3-1 is just pulled out at once under all one's effort effect of seat spring 9-2, and its amplitude is big In the amplification zone shaked from side to side that people sits, long rod conductor is set to disconnect with carbon brush, but the insulated part of long slide bar is contacted with carbon brush； The joint of the insulated part of the bottom of the long rod conductor and long slide bar of described long slide bar S3-1 can not have step or height Injustice, preferably machines after shaping, such as turnning and milling, is beneficial to slip and does not block.In flameout state, the M of ignition switch C2, G Connect, main circuit is shorted, and No. 2 black line short circuits of single board computer and instrument plug-in unit C4 and engine plug-in unit C1 cause petrol engine It is flame-out；In running status, the B of ignition switch C2, L is connected, and main circuit is switched on, and single board computer and instrument plug-in unit C4 pass through No. 5 Blue line is powered, the first end input high level of engine plug-in unit C1, and Oil Switch is opened；When accelerator gear is in N file locations, N shelves Switch S2 disconnects, and instrument display lamp is bright.During parked state, parking switch S1 is closed, and display lamp N is bright in instrument；Seat is not sat When lower, seat switch S3 disconnects, and display lamp P is bright in instrument.If in the state of grass cutting collection box is not hung, hanging grass cutting collection box switch S4 and breaking Open, grass cutting collection box warning lamp is bright, while buzzer U1 sends continuous alarm song；When in the state of battery B1 undertensions, The brownout of main circuit is connected, battery indicator lamp is bright；When head lamp switch S0 is closed, headlamp is bright；In starting state When, the B of ignition switch C2, L, S is connected, and main circuit is switched on, and the function of operation can be realized；The dark red line at S ends accesses veneer No. 4 line ends of machine and instrument plug-in unit C4, and the high level signal of No. 4 line ends is received by single board computer control, control No. 3 line ends Output high level signal, access DC relay, turn on DC relay C3, power supply is flowed into by DC relay and opened Dynamic device ST, starts petrol engine.Start control, be to be discriminated whether to meet following 5 kinds of startup situations by single board computer：1. oily Door is in N shelves states, and N gear switch disconnects, and causes No. 7 line ends to fail to form loop by N gear switch；2. power output PTO is opened Close C6 left ends to close, always one group of switch is normally opened because of PTO switches, and one group of switch is normally closed, scheme upper being set to and switch the shape that C6 left ends are closed State, now cutter separation does not work, and No. 11 line end blue lines switch C6 left end cutter switch PTO and export to form loop by PTO；3. Seat is sat down, and seat switch is closed, and No. 8 line end orange lines export to form loop by seat switch；4. when vehicle is parked, Parking switch S1 is closed, and No. 6 line end purple lines export to form loop by parking switch；5. when grass cutting collection box or back shroud hang up, hang Grass cutting collection box switch S4 pressures, the dark red line of No. 9 line ends switchs to form loop by extension grass cutting collection box；So, open when ignition switch is in During dynamic state, the dark red line input high level signal of No. 4 line ends is just discriminated whether to meet the above 5 to instrument plug-in unit by single board computer Individual semaphore request, if met, can turn on DC relay C3, starter work in No. 3 line end purple line output high level Make.Flame-out control：Vehicle flame-out control after operation；There are 5 kinds of signals or 5 kinds of misfire signals；The parking switch of signal 1., does not stay During car state, parking switch OFF disconnects, and No. 6 purple lines fail to be formed loop output, on the contrary parked state；Signal 2.N gear switch, Not in N file locations, N gear switch ON closures, No. 7 line end gray lines form loop output to accelerator gear, otherwise in N file locations；Letter Number 3. seat switch, when seat is not sat down, seat switch S3 disconnects, and No. 8 line end orange lines fail to form loop output, seat quilt Otherwise sit down；Signal 4. hangs grass cutting collection box switch, if in the state of grass cutting collection box is not hung, hanging grass cutting collection box switch S4 and disconnecting, grass cutting collection box Warning lamp is bright, while buzzer U1 sends continuous alarm song, No. 9 dark red line ends fail to be formed loop output, grass cutting collection box or after Otherwise when cover plate hangs up；Power output PTO of signal 5. switchs C6, and because of PTO switches, always one group of switch is normally opened, and one group of switch is normal Close, scheme the upper state for being set to switch C6 left end conjunctions, now cutter is separated and do not worked, and No. 11 line end blue lines switch C6 by PTO Left end cutter switch PTO exports to form loop；And work as PTO switch C6 left ends and do not conform to, when right-hand member is closed, electromagnetic clutch C7 adhesives, Cutter is combined, and No. 11 line end blue lines switch C6 left end cutter switches PTO outputs and fail to form loop by PTO, now in instrument Cutter work display lamp is bright；5 kinds of misfire signals are：1. in above-mentioned 5 signals, when PTO starts, cutter is combined, and seat is not sat Under, then the engine delay 3-5 seconds are flame-out；2. in above-mentioned 5 signals, grass cutting collection box or back shroud do not hang up properly, and grass cutting collection box warning lamp is bright, Simultaneously buzzer U1 sends continuous alarm song, and engine stops working immediately；3. in above-mentioned 5 signals, when vehicle is parked, parking Switch S1 closures, PTO switch C6 left ends do not conform to, and when right-hand member is closed, electromagnetic clutch C7 adhesives, cutter is combined, then single board computer order is sent out Motivation is stopped working immediately；4. in above-mentioned 5 signals, when being not in N file locations, seat is not sat down, then the engine delay 3-5 seconds put out Fire；5. in above-mentioned 5 signals, when accelerator gear is in N file locations, under non-parked state, seat is not sat down, then engine prolongs Late the 3-5 seconds are flame-out；When vehicle is when above-mentioned one or more misfire signals are met, by differentiation of the single board computer to above-mentioned signal, Again by Control, the black line short circuit of No. 2 line ends is made, even if the flame-out line output ground connection of engine plug-in unit C1, causes gasoline Engine misses, time delay is realized by single board computer time delay subroutine.Several controls are said below.First say parking control System, when vehicle is parked, parking switch S1 closures, gear is in N file locations, and seat is not sat down, and PTO switch left ends are closed, right End does not conform to, and electromagnetic clutch C7 not adhesives, cutter is not combined, and grass cutting collection box and back shroud are hung up, and engine is still in idling shape State.Besides traveling control, under non-parked state, or under the parked state that faulty operation sometimes is caused, gear is not in N gears Put, seat is sat down, PTO switch left ends are closed, and right-hand member does not conform to, and electromagnetic clutch C7 not adhesives, cutter is not combined, and grass cutting collection box is with after Cover plate is hung up, and engine does not stop working.Then brake control is said, under operation, brake is stepped on, under non-parked state, shelves Position is put in N gears, and seat is sat down, and PTO switch left ends are closed, and right-hand member does not conform to, and electromagnetic clutch C7 not adhesives, cutter is not tied Close, grass cutting collection box and back shroud are hung up, and engine is still within working condition.Mowing control is said below, under non-parked state, Gear is not in N gears and puts, or gear is mowed in N shelves original place, and seat is sat down, and PTO switch left ends do not conform to, and right-hand member is closed, electricity Magnet clutch C7 adhesives, cutter is combined, and grass cutting collection box and back shroud are hung up, and engine is still within working condition.Finally describe Once full grass warning system, when grass cutting collection box grass is full, full grass alarm switch S5 is depressed, and No. 10 line end brown line is by full grass box Alarm switch S5 forms loop, and now buzzer U2 sounds the alarm.

Because employing various safety circuit protection measures and noise reduction and environmental practice on hay mover, therefore it is comprehensively imitated Fruit not only improves mowing, and operation is comfortable, circuit supervision, and noise reduction, environmental protection and safety are conducive to again.

Special-shaped belt is without the double careless wide cut hay mover of the tilting in the same direction pair of hay knife of tensioning wheel driving, it is characterised in that its power Machine drives double hay knives (20) to use belt, without tensioning wheel, the belt knot belt (26) of special-shaped belt, and its engine Driving pulley (28) is driven, the driving pulley (28) with the knot belt (26) while respectively drive described pair of hay knife (20) Knife-band wheel (27), the described pair of hay knife spacing be not less than knife diameter；Described pair of hay knife rotating Vortex, the driving pulley is same When respectively with the line in the center of circle of the knife-band wheel of double hay knives (20) described in belt drives on the same line, it is and tilting to there is weight Cut area and do not leak and cut, tilting is exactly the driving pulley while respectively with the circle of the knife-band wheel of double hay knives (20) described in belt drives Wheel axis before and after line of the line of the heart on the same line and on the same straight line in the center of circle of each knife-band wheel and hay mover It is provided with the angle β of 15 to 45 degree；And it is provided with side straw outlet (29) and rear straw outlet (30) on the cutterhead of described pair of hay knife；Institute It is to have beaten many knots (26a) on tightrope to state knot belt (26), driving pulley (28) the setting tool logatithmic spiral it is recessed Arc groove (28a), soft knot is contacted in the hope of noise reduction using the pressure angle of logatithmic spiral characteristic equal everywhere.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, it is characterised in that its described driving pulley is simultaneously respectively with the center of circle of the knife-band wheel of double hay knives (20) described in belt drives Wheel axis are provided with before and after line of the line on the same line and on the same straight line in the center of circle of each knife-band wheel and hay mover The angle β of 16 to 25 degree.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, it is characterised in that its described driving pulley is simultaneously respectively with the center of circle of the knife-band wheel of double hay knives (20) described in belt drives Wheel axis are provided with before and after line of the line on the same line and on the same straight line in the center of circle of each knife-band wheel and hay mover 18 degree of angle β.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, it is characterised in that its described driving pulley is simultaneously respectively with the center of circle of the knife-band wheel of double hay knives (20) described in belt drives Wheel axis are provided with before and after line of the line on the same line and on the same straight line in the center of circle of each knife-band wheel and hay mover 18.3 degree of angle β.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, it is characterised in that its section of the long slide bar of its seat switch is the arc for having equiangular spiral, and equiangular spiral tool pressure angle is everywhere Equal characteristic.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, it is provided with the horseshoe magnet of nano rare earth driving in back axle.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, the support of its vehicle frame with dual fail-safe thick stick is elastic NBR.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, its headstock hood for having noise reduction is that sound-absorbing foam plastics are filled out in HDPE Blow Molded Articles.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, its airstrainer eliminated the noise is aluminium net.

Update perfect described special-shaped belt to mow without the double careless wide cut of the tilting in the same direction pair of hay knife of tensioning wheel driving Machine, the joint flash of its hay knife is provided with the top of multiple hexagonal pyramid shapes the wedge for being provided with micro through hole.

Usefulness：Resultant effect not only improves mowing, and operation is comfortable, and noise reduction, environmental protection and safety, Er Qieshi are conducive to again In order to be able to reduces cost；Without tension structure and synchronous cog belt, the rear Lysimachia sikokiana and side Lysimachia sikokiana of wide cut can be simultaneously provided with, meet city A kind of special-shaped belt of desirability emerges without the double careless wide cut hay mover of the tilting in the same direction pair of hay knife of tensioning wheel driving on field.Knot Belt (26) is that many knots (26a) have been beaten on tightrope, the concave arc groove (28a) of driving pulley (28) setting tool logatithmic spiral, Using the pressure angle of logatithmic spiral characteristic equal everywhere soft knot is contacted in the hope of noise reduction.The belt wheel of tool logarithm concave arc groove is with rope Skinning band is in the hope of invention that noise reduction is exactly a kind of special-shaped belt for having popularization and application.

Special-shaped belt without the double careless wide cut hay mover of the tensioning tilting in the same direction pair of hay knife of wheel driving, its knot belt (26) be Many knots (26a), the concave arc groove (28a) of driving pulley (28) setting tool logatithmic spiral, using logatithmic spiral have been beaten on tightrope The equal everywhere characteristic of pressure angle contact soft knot in the hope of noise reduction.The belt wheel of tool logarithm concave arc groove is with knot belt in the hope of drop Make an uproar the invention of a kind of special-shaped belt for exactly having popularization and application.The rear Lysimachia sikokiana and side Lysimachia sikokiana of wide cut can be simultaneously provided with.It is tilting to be exactly Driving pulley simultaneously respectively with the line in the center of circle of the knife-band wheel of the double hay knives of belt drives on the same line and each knife-band wheel Wheel axis are provided with the angle β of 15 to 45 degree before and after line and hay mover on the same straight line in the center of circle.

Claims (10)

1. special-shaped belt is without the double careless wide cut hay mover of the tilting in the same direction pair of hay knife of tensioning wheel driving, it is characterised in that its engine Double hay knives (20) are driven to use belt, without tensioning wheel, the belt uses the knot belt (26) of special-shaped belt, its engine to drive Dynamic driving pulley (28), the driving pulley (28) is while respectively with the knot belt (26) described pair of hay knife (20) of driving Knife-band wheel (27), described pair of hay knife spacing is not less than knife diameter；Described pair of hay knife rotating Vortex, the driving pulley is simultaneously Respectively with the line in the center of circle of the knife-band wheel of double hay knives (20) described in belt drives on the same line, and tilting cut again to have Area and do not leak and cut, tilting is exactly the driving pulley while respectively with the center of circle of the knife-band wheel of double hay knives (20) described in belt drives Line of the line on the same line and on the same straight line in the center of circle of each knife-band wheel and hay mover before and after wheel axis set There is the angle β of 15 to 45 degree；And it is provided with side straw outlet (29) and rear straw outlet (30) on the cutterhead of described pair of hay knife；It is described Knot belt (26) is to have beaten many knots (26a), the concave arc of driving pulley (28) the setting tool logatithmic spiral on tightrope Groove (28a), soft knot is contacted in the hope of noise reduction using the pressure angle of logatithmic spiral characteristic equal everywhere.

2. special-shaped belt according to claim 1 is without the double careless wide cut hay mover of the tensioning tilting in the same direction pair of hay knife of wheel driving, Characterized in that, its described driving pulley is simultaneously respectively with the line in the center of circle of the knife-band wheel of double hay knives (20) described in belt drives Before and after line on the same line and on the same straight line in the center of circle of each knife-band wheel and hay mover wheel axis be provided with 16 to 25 degree of angle β.

3. special-shaped belt according to claim 1 is without the double careless wide cut hay mover of the tensioning tilting in the same direction pair of hay knife of wheel driving, Characterized in that, its described driving pulley is simultaneously respectively with the line in the center of circle of the knife-band wheel of double hay knives (20) described in belt drives Wheel axis are provided with 18 degree before and after line on the same line and on the same straight line in the center of circle of each knife-band wheel and hay mover Angle β.

4. special-shaped belt according to claim 1 is without the double careless wide cut hay mover of the tensioning tilting in the same direction pair of hay knife of wheel driving, Characterized in that, its described driving pulley is simultaneously respectively with the line in the center of circle of the knife-band wheel of double hay knives (20) described in belt drives Wheel axis are provided with 18.3 before and after line on the same line and on the same straight line in the center of circle of each knife-band wheel and hay mover The angle β of degree.

5. special-shaped belt according to claim 1 is without the double careless wide cut hay mover of the tensioning tilting in the same direction pair of hay knife of wheel driving, Characterized in that, its section of the long slide bar of its seat switch is the arc for having equiangular spiral, equiangular spiral has pressure angle phase everywhere Deng characteristic.

6. special-shaped belt according to claim 1 is without the double careless wide cut hay mover of the tensioning tilting in the same direction pair of hay knife of wheel driving, It is provided with the horseshoe magnet of nano rare earth driving in back axle.

7. special-shaped belt according to claim 1 is without the double careless wide cut hay mover of the tensioning tilting in the same direction pair of hay knife of wheel driving, The support of its vehicle frame with dual fail-safe thick stick is elastic NBR.

It is 8. according to claim 1 to drive the double careless wide cut hay mover of tilting in the same direction pair of hay knife without tensioning wheel ordinary straps, Its headstock hood for having noise reduction is that sound-absorbing foam plastics are filled out in HDPE Blow Molded Articles.

It is 9. according to claim 1 to drive the double careless wide cut hay mover of tilting in the same direction pair of hay knife without tensioning wheel ordinary straps, Its airstrainer eliminated the noise is aluminium net.

It is 10. according to claim 1 to drive the double careless wide cut hay mover of tilting in the same direction pair of hay knife without tensioning wheel ordinary straps, The joint flash of its hay knife is provided with the top of multiple hexagonal pyramid shapes the wedge for being provided with micro through hole.