CN102301862B - Improved grass cutter with self-clutched blade - Google Patents

Abstract

The invention relates to a grass cutter with a self-clutched blade, which has the main improvement aim to be good for noise reduction, environmental friendliness and safety. The invention focally recommends several improved cutting mechanisms, an application of a clutch pin type cutter holder containing a spring ring, and multiple clutch cutter holder combinations with cutter clutches of the grass cutter end; counter bores (60z) are arranged on end faces of several deformed cutter holders to replace sockets and a cutter holder pushing sheet is provided with a limiting pin (60q) to replace an end face friction cutter holder of a lug; several upper and lower friction sheets which have multiple teeth and are uniformly arrayed according to the circumference, or are paralleled according to the multiple teeth, or have saw teeth, or have a multiple-wave shape, or have single sides, or have double sides and have different shapes, namely have big and small ends, or are round, or are squared, or have different depths and have multiple bumps; materials of an upper clutch sheet and a cutter holder lower clutch sheet are selected according to machine types and the plastic is usually utilized, such as PP polypropylene or PU polyurethane; or other materials are used, such as textiles.

Description

Improved grass cutter with self-clutched blade

Technical field

The present invention relates to a kind of hay knife of the hay mower cutting the grass on a lawn for places such as garden, park and road side, courts, especially improved grass cutter with self-clutched blade.

Background technology

Hay mower is widely used in sometimes mowing from walking the mode of sometimes certainly not walking by people's hobby is selected.Operation pedestrian pulls from walking control crank, by steel wire rope and driving lever, makes clutch on-off, so that sometimes from walking sometimes not from walking.The driven wheel speed-reducing clutch of the traverse gear of prior art is to be driven by the belt pulley that is contained in engine spindle.And engine spindle mowing-apparatus, as Fig. 5. as shown in engine spindle mowing-apparatus explosive view, by drive pulley (11), cushion cover (12), key (13), tool rest (14), original cutter (15), large pressure pad circle (16), fastening bolt (17) forms; Generally speaking, tool rest is absolutely necessary.Conventional mowing-apparatus part used is more more expensive; Also heavier, rotary inertia is larger, and power hungry is more; And cutter is to be rigidly connected, while running into foreign material as water pipe, be very stiff and demanding, there is no security protection.Only there is sword the side of common hilted broadsword and is anodontia, and its Ren Yi Blunt runs into cane and cuts badly, usually tears; Particularly its end face along circumference is anodontia, and end face is high at the rotating speed of circumferential location, and cutting function is strong, thus the end face of common hilted broadsword anodontia be very large loss to ablation energy.

Hay mower is widely used in mowing by the selected mode of people's hobby.Because the mobility of the mower of hand push is poor, and while mowing in practice, due to the narrower swath in mower front portion, often have generation so repeat to cut and leak the phenomenon of cutting, must go to mend and cut, it is very arduous that operator's walking is mowed.If with sitting type, be also riding mower, be seated and feel different than standing, but noise is large.Noise reduction and to subtract consumption task very large.

Silencer as the particularly silencing equipment of put-put of internal combustion engine, is arranged on exhaust doorway on cylinder cover by extensively, reduces the noise of engine operation process.The limiting value of the noise of countries in the world to various traveling vehicles and mower has relevant regulation, and exhaust silencer is exactly such device of giving birth to for reducing exhaust noise.The performance evaluation of silencer mainly contains acoustical behavior, the indexs such as aerodynamic quality and structural behaviour.The considerable part of internal combustion engine belongs to pulsating nature Low Frequency Noise Generator, adopts resistance or impedance again and property and micro-perforated plate muffler more.Mostly the silencer of common internal combustion engine is three-chamber silencer in particular for the silencer of put-put, and noise elimination effect is limited; And outside must have larger containment envelope, the effect but itself is not eliminated the noise.Moreover its shell temperature rise is higher, hot, affects safety.If add anechoic trap when being improved.Improve the noise reduction of mowing-apparatus and cutter and subtract consumption also very important.

Artificial foot protection all has related request at standard STD.BSI EN 836-ENGL 1997 and GB 4706.78-2005/IEC 60335-2-77:2002.The mowing height of most mowers has many gears adjustable, and the safety of this pin to operation pedestrian must be by the strict security regulations of controlling.This pin test that normally rehearses.But false pin test palpus every day test location is more, and topped product quantity very little.To such an extent as to have the mower of shipment, and but measured false pin safety by people individually, all affect mower order.Improved idea allows hay knife be elevated at several millimeters, chassis often.But the sheet metal that the part that is elongate strip due to cutter bent, due to tolerance, the reason of form and position tolerance and assembling cumulative errors, the point of a knife at two ends is just difficult to ensure not high not low in a circumferential plane in large quantities of actual productions; Just in case occur thing difficulty avoid, but also to guarantee ten thousand none go out safety problem.If by the improvement of mowing table and mower, and improve cutter with noise abatement material, be expected to receive the effect of security protection and noise abatement.

Phenomenon is cut in the leakage causing for fear of the adjacent gap of two cuttves, two cuttves of original sitting type mower, normally one in front and one in back.Please refer to Figure 51, this is the transmission schematic diagram of one in front and one in back two cuttves of original sitting type mower, and in figure, 23a is the belt pulley on the axle of the first cutter, and 23b is the belt pulley on the axle of the second cutter, the 11st, and the belt pulley of engine.The strip of two cuttves is hang down mutually and oppositely turn, so that non-interference; Be two-sided V-belt, also used three regulating wheels, main shortcoming is because of before and after cutter has, and strengthens before and after making to cut dish, cause wheel base to strengthen, complete machine lengthens, and it is large that the car turning radius becomes, longitudinally potentiality coefficient of stability variation, cost is added, and these are all undesirable.Two cuttves of another kind of original sitting type mower, though be not tandem, referring to Figure 52, because of two cuttves oppositely turn so that non-interference, use be double-sided synchronous belt, also handy two synchronous tensions are taken turns, this makes cost increasing.

When actual mowing, sometimes meet stone and hinder cutter.Again by the regulation of blade test, with No. 45 steel, diameter 30mm, the seamless steel pipe of wall thickness 3mm, put in blade and cut district, do not allow fracture, but flexible, the grass cutter with self-clutched blade that this inspires us to make improvements, also inspires us to make multistage flail knife, and has the cutter of protection.

Summary of the invention

It is constantly to improve with endless that science is improved.First changed repeatedly cutter, then changed multiple with cutter from the relevant part of clutch.

More in order to overcome the conventional mowing-apparatus part used of hay mower prior art, rotary inertia is larger, power hungry is more, and cutter is to be rigidly connected, there is no the shortcoming of security protection, the invention provides a kind of improvement of hay mower cutting mechanism, it is the cutter of not wanting independent tool rest for hay mower, be called the hay mower hay knife without tool rest, one can make part reduce ， Zao Price reduces; Two can make weight saving, and consumed power reduces; Three can make it have the function of security protection.Again in order to make up that only there is sword the side of common hilted broadsword and anodontia, its Ren Yi Blunt, runs into cane and cuts badly, usually tears, particularly its end face along circumference is anodontia, and end face is high at the rotating speed of circumferential location, cutting function is strong, the shortcoming of the very large loss to ablation energy therefore the end face of common hilted broadsword is anodontia, the present invention is improving for many years, for example material, thermal treatment, mechanism, form, and for example the described hay mower without tool rest is with on the basis of hay knife, a kind of multi-tooth hey knife for lawn mower is provided especially, the multiple tooth length that has greatly increased blade than hilted broadsword, there are many folding swords and have multiple impact cutting angle and slip cutting angle, be conducive to strengthen the careless bar of cutting and straw usefulness, mill structure at the bottom of the hunchbacked formula of shear blade, make it have self-grinding and wear-resisting persistence, and save power consumption because of multiple tooth than former hilted broadsword is sharper.

The present invention solves the technical method that its technical problem takes:

This is the ingenious combination of two class junctures in fact, saves exactly heavy tool rest, and directly punching press can be for the moulding connecting on the steel plate of cutter; Or glued joint and make with welding, be the cutter of not wanting independent tool rest in a word, be tool rest and cutter are integrated, on it, be also provided with the key of security protection, can be generically and collectively referred to as the hay mower hay knife without tool rest.

A kind of engine spindle mowing-apparatus, particularly without the hay mower hay knife of tool rest, on the steel plate of cutter, in the riding position region of engine spindle and fastening bolt (17), be provided with pit (2), key (1), keyway (3), as Fig. 1, Fig. 3, Fig. 4, shown in Figure 10 and Figure 11; It is characterized in that: the internal diameter of described pit (2) equals or tolerance is slightly larger than the external diameter of engine spindle, and the centre of the bottom of described pit (2) is porose, so that through fastening bolt (17); The band of position of laying key at the edge of described pit (2), be provided with key (1), it is characterized in that: described key (1) is rectangle, from the steel plate of cutter, utilize material and punching press bending and moulding, or make with welding or splicing, and the two sides of its square-section, at least one side, installation sticker are in the keyway of engine spindle; The particularly root of described key (1); namely the steel plate of key (1) and cutter and with the connecting portion of the band of position of laying key at the edge of described pit (2); there is the crack arrest groove of punching press bending; to correctly select suitable shear strength; make to mow by key, again can be in the time encountering water pipe key root overloading and protect.Described brief and concise being described below of the method for correctly selecting suitable shear strength: the root of manufacturing described key (1) can be by the crack arrest channel process of less important wall.Less important wall refers to the panel beating wall being connected on other thin-walled, can be counted as the subitem of main wall.The seamed crack arrest groove of crack arrest groove of the root of key, without crack arrest groove, stretches crack arrest groove, rectangle crack arrest groove, and Long Circle crack arrest groove, preferably selects seamed crack arrest groove.Computer bender and PROE for suggestion, available system acquiescence equation, by Y factor or the K factor; Or with predefined bending table; Or with customization bending table; Consider material behavior and compensation by system.If the bending table of customization is not assigned to sheet metal component, available following formula calculates length of run:

L＝(π/2xR+YxT)xθ/90

In formula, L is the length of run of key; R is the inner radius of key; Y factor this desirable 0.5; T is steel plate thickness, beats edge break and many places prominent protruding, can improve the modulus of the mechanics of materials, reduces steel plate thickness; θ is bending angle, can between 80-100, choose.Y factor and the K factor are the defined part constants in position by the neutral bending line of the relative thickness of sheet metal component material.The K factor is the ratio distance (δ) and the material thickness (T) from neutral bending line to inner side radius bend, and its formula is K=δ/T.Y factor is the ratio between length and the material thickness (T) of neutral bending line, and its formula is Y=Kx (pi/2).Can accessing text and HTML sheet metal component report and the precision of sheet metal component is set.Select suitable shear strength method two are the methods of facts have proved, at the root of described key (1), namely the steel plate of key (1) and cutter and with the connecting portion of the band of position of laying key at the edge of described pit (2), it is the crack arrest groove that has punching press bending without wheel, or make with welding or splicing, if facts have proved, still its intensity is too high, take material reducing to cut out method, at the root of its key, dig material the root portion cross section of key is attenuated, to select suitable shear strength.The feature of described keyway (3) is, in the band of position of laying common key (13) at the edge of described pit (2), be provided with the same wide keyway of keyway with engine spindle, this for some occasion for subsequent use, for example, while adding woodruff key, for example, while adding spare key.The steel plate middle part of cutter, beat edge break and many places prominent protruding in to strengthen attenuate.

As different several styles, as shown in Figure 2, can be described as embodiment 1, it is characterized in that the connecting portion in the band of position of laying key at the edge of described pit (2), be provided with key (1), be provided with described keyway (3) at opposite side; The centre of described pit is provided with through hole (18).

As different several styles, as shown in Figure 6, can be described as embodiment 2, it is characterized in that (being at least a side) is provided with keyway (4) in both sides at the connecting portion of the band of position of laying key at the edge of described pit (2); The centre of described pit is provided with through hole (18).

As different several styles, as shown in Figure 7, can be described as embodiment 3, it is characterized in that, in a side of the connecting portion of the band of position of laying key at the edge of described pit (2), being provided with inside key prominent (5); The centre of described pit is still provided with through hole (18).

As different several styles, as shown in Figure 8, can be described as embodiment 4, it is characterized in that saving pit, and at the connecting portion of the band of position of laying key at the edge of former described pit (2), be provided with keyway square hole (6) in a side; Still be provided with through hole (18) in the centre of described former pit.

As different several styles, as shown in Figure 9, can be described as embodiment 5, it is characterized in that saving pit, and at the connecting portion of the band of position of laying key at the edge of former described pit (2), be provided with keyway square hole in a side, be provided with described key (7) at opposite side, this key or fixing for example welding and stickup, or the key of the another dress of living, particularly described key part have cuts down to be suitable for the requirement of required security intensity; Still be provided with through hole (18) in the centre of described former pit.

Again in order to make up that only there is sword the side of common hilted broadsword and anodontia, its Ren Yi Blunt, runs into cane and cuts badly, usually tears; Particularly its end face along circumference is anodontia, and end face is high at the rotating speed of circumferential location, and cutting function is strong, the shortcoming of the very large loss to ablation energy therefore the end face of common hilted broadsword is anodontia, the present invention is improving for many years, and for example material, as 65Mn, as 40MnB, thermal treatment is as carbo-nitriding, and mechanism is as hilted broadsword, multitool, stationary knife, cutter alive, form is as flat cutter, jack knife, tulwar, blackout, sprays black moulding, have seat without seat, as as described in the hay mower without tool rest with on the basis of hay knife, a kind of multi-tooth hey knife for lawn mower is provided especially.Referring to Figure 12, Figure 13, Figure 14, described multi-tooth hey knife for lawn mower, mainly, by side multiple tooth (24), apical tooth (25), holds multiple tooth (26), wind wing cutting edge (27), wind wing elliptical aperture (28), the middle through-hole (18) of wind wing honeycomb (29) and cutter hub, key (1), pit (2), keyway (3) forms; It is characterized in that, described side multiple tooth (24) is provided in a side of cutter hub steel plate side, the namely place of original blade, in the direction of advance of hay knife rotation, taking the middle through-hole (18) of cutter hub as reference, a steel plate side is provided with multiple teeth, at least 1 on one side, or nearly hundred, for example 16.If tooth is few, the outermost end of the rotation round that preferentially keeps to the side to lean on; And in the outermost end by rotation round, be provided with described end multiple tooth (26), at least 1, or reach dozens of, for example 3; In described side multiple tooth (24) and described end multiple tooth (26) junction, be provided with described apical tooth (25) again.Referring to Figure 20, be described side multiple tooth (24), described end multiple tooth (26), and the schematic diagram of the cross section of the tooth of described apical tooth (25), have the feature of common tooth.The feature of described common tooth is, the stretched back of a bow (19) of the useful steel plate punched of cross section of each described tooth, and the steel plate of the both sides of the back of a bow has certain angle, referring to figure (19).Hunchbacked bottom is polished and grinds cutting edge (20), referring to Figure 20.In addition, described side multiple tooth (24), described end multiple tooth (26), and (from overlooking and schematic perspective view) common edge feature of the tooth of described apical tooth (25) is, each described tooth has side, has wedge angle; And dual-side or at least one side have cutting edge; Wedge angle or fillet, the not too angle of point of passing through mutually, but general shape to be the head of tooth little and root is thick; The side of described tooth or straight hypotenuse, or curved, arc, or saw thread form, or prominent arc, or arcs of recesses, particularly the side of described tooth is arc, preferably involute shape.The wind wing of cutter is provided with described wind wing cutting edge (27), it is characterized in that, described wind wing is provided with at least one or more breach, for example 4, the edge of each breach is also provided with cutting edge (27), twines grass in order to cut-out, can be referring to figure (13).On the wind wing of cutter or be provided with described wind wing elliptical aperture (28), described elliptical hole at least one, or nearly hundred, for example 6, in order to the booster action that has noise reduction, can be referring to figure (15).On the wind wing of cutter or be provided with described wind wing honeycomb (29), described wind wing honeycomb (29) at least one, or nearly tens, for example 6, in order to the booster action that has noise reduction, can be referring to figure (16); Particularly described wind wing honeycomb (29) is projection, circular cone or pyramid, and particularly hexagonal pyramid shape, and middle part has through hole (30), can be referring to figure (17) and figure (18).

The invention has the beneficial effects as follows: the multiple tooth length that has greatly increased blade than hilted broadsword, has many folding swords and have multiple impact cutting angle and slip cutting angle; Material to be cut is flexible, allows careless phenomenon many when single-blade, and roll over sword to hug careless function stronger more, is conducive to strengthen the careless bar of cutting and straw usefulness, and mill structure at the bottom of the hunchbacked formula of shear blade, makes it have wearability and save power consumption.Wind wing elliptical aperture (28) on the wind wing of cutter and wind wing honeycomb (29), have the booster action of noise reduction.

The mowing-apparatus that has noise reduction of the included vehicle frame of the described riding mower that has noise reduction measure and hydraulic stepless speed change below, comprises and highly regulating partly and mowing part, referring to Fig. 5, highly regulate part, press parallelogram principle, by the front dead axle (58a) and the rear dead axle (58c) that are located on vehicle frame, and be located at front moving axis (58b) and the rear moving axis (58d) cutting on dish (58) and be attached thereto moving rod member, and for the steel wire rope pulling (58h), sector gear (58g), ratchet (58f) and heighten handle (55) and form, it is characterized in that: described be located at front dead axle (58a) and the rear dead axle (58c) on vehicle frame, and to be located at the front moving axis (58b) and the rear moving axis (58d) that cut on dish be four summits of parallelogram, its corresponding limit is parallel and equal between two, so, pull steel wire rope (58h) by heightening handle (55) in any case, and by sector gear (58g), ratchet (58f) is to several gears of heightening, front dead axle (58a) on vehicle frame and the line of rear dead axle (58c), always parallel with the front moving axis (58b) cutting on dish with rear moving axis (58d), thereby normally work fundamentally having ensured to cut the upper and lower translation of dish, as can be seen from Figure 6, described sector gear (58g) has multiple tooth, and existing preferably 10 teeth, have 10 grades, and for example can cut height at 10-100mm and adjust, or by conventional 25-85mm.Referring to Figure 24, the power of the part of mowing, from engine spindle (51), passes to the first tool rest through belt (61), then passes to the second tool rest through Timing Belt (63), to drive hay knife (60) work; As improvement, referring to Figure 33 and Figure 16, described hay knife (60) is provided with two or more wind wings, twine grass in order to cut off, on described wind wing, be provided with multiple cutting edges, the angle on the two sides of described cutting edge is not right angle, is preferably less than angle or the acute angle of 60 degree; Be further used as improvement, described hay knife (60) is provided with multiple hexagonal holes, or further improve, described hay knife (60) is provided with multiple as honeycomb or as the convex-concave of wedge (29), is noise reduction in order to the flow through audio frequency of the micro-air-flow of high speed of cutter of change.

Spy provides graphical designs and the preferred method of thinking of the mowing part of the mowing-apparatus of noise reduction, is a significant contribution of the present invention.As previously mentioned, the one in front and one in back scheme of two cuttves of original sitting type mower, use be two-sided V-belt, also used three regulating wheels, because of before and after cutter has, strengthen before and after making to cut dish, cause complete machine to lengthen.Two cuttves of another kind of original sitting type mower, though be not tandem, because of two cuttves oppositely turn, use be more expensive double-sided synchronous belt, also handy two synchronous tensions are taken turns, this makes cost increasing.Can find with two cuttves, be one in front and one in back, do not make to cut dish front and back and strengthen, and oppositely do not turn, and double-sided synchronous belt that need not be more expensive, grass does not leak, and what way does the approach that cutter does not touch use? answer is yes.Using diagram optimum seeking method: two point widths of getting strip-shaped cutter (20) are diameter D, is that belt wheel center (23a, 23b) is apart from being A by the gyroaxis of two cuttves, draw 2 circles, referring to Figure 25, two justify crossing front parts represents with filling hachure, and width B is exactly the heavy swath B that grass does not leak; Justify taking A as diameter, angle of circumference perseverance is right angle again, hangs down mutually, and is synchronous rotation, therefore two two limits that cutter is angle of circumference can separately be drawn multiple angles of circumference and be come preferably because establishing two cuttves.There is formula: B=D-A.Referring again to Figure 26, variation A, first gets band wheelspan A=0.618D by optimum seeking method 0.618 method, mapping, then strengthen gradually A, be to the maximum and approach D; Shown in figure, be the heavy swath B of maximum and the minimum A in the time that cutter touches soon.The size of dish (18) is cut in A impact.Again by formula:

Getting designed ratios N=A/D, in general, is good at 74%-92%.

For example get 74%, the long D=530 of cutter, the cutter heart is apart from A=390; Swath F=D+A=530+390=920, somewhat few, it is good a little louder to wish; Heavy swath B=D-A=140, enough.

As another embodiment, get designed ratios N=A/D=92%, the long D=530 of cutter, the cutter heart is apart from A=490; The swath F=D+A=530+490=1020 of mower, a little bigger, good; Heavy swath B=D-A=40, also can use.

If get heavy swath B=D-A≤20, likely leak grass, because grass is that shake left and right, and cut dish and overwhelm by askew allowing, sometimes just have once in a while cut less than grass.

Adopt PROE-WILDFIRE software variable picture easily, certainly also can use other software.

Spy provides the forward anechoic trap (47) in the included vehicle frame top of the riding mower of noise reduction measure and hydraulic stepless speed change and has the wedge (29) of noise reduction, as shown in Figure 18 and Figure 23, draws engine for seeing clearly to exempt to block to have saved; Anechoic trap provided by the invention, contains hush tube and tank; The lower bend of described hush tube immerses in the other tank of silencer (42), to there is cooling effect.The effect of described tank is to kill two birds with one stone, except cooling, also with water for weight; Because it is located at mower front portion, therefore there is counterweight effect.The water of tank faces the used time and just adds, because this disregards hauled weight; The water adding does not add tankful, has had half just.The lower end of the lower bend of described hush tube and silencer outlet are joined.The feature of described tank is, its side is provided with through hole, to match with the lower bend of described hush tube; Its bottom is provided with dewatering outlet.Described hush tube forms by multistage inner tube and brace with containing the outer tube of multiple wedges (29) array of micropore.The feature of described inner tube is to which is provided with cellular hexagon eyelet, or polygon eyelet, or oval and oval eyelet; And the interior length of tube of multistage is that length is different and alternate; For example have one section to be the longer inner tube of four/three-wavelength multiplying factor, adjacent is the inner tube of its quarter-wave multiplying factor only.The distribution of multiple eyelets that in addition, described inner tube is provided with is not uniform but has density; The position that is positioned at 1/4th pipe ranges at the middle part on one section of pipe of four/three-wavelength multiplying factor is closeer eyelet, is the eyelet of dredging on the pipe of remaining part; And the feature of its eyelet is hexagon eyelet or many prismatics; The feature of the inner tube of the described quarter-wave multiplying factor with eyelet is also that the distribution of the multiple eyelets which is provided with is not uniform but has density; The position that is positioned at 3/8ths pipe ranges at the middle part on this section of pipe is closeer eyelet, is the eyelet of dredging on the pipe of remaining part.Described eyelet is polygonal, preferably hexagonal; As improvement, or the feature of its eyelet is many prismatics, or six ribs, or have the polygonal of a fabrication flange; Or the feature of its eyelet is the described wedge that has micropore (29), has quarter-wave effect and dilatational wave effect and honeycomb effect.On the face of described outer tube, be provided with many stamping projections, being multi-prism taper is that multiaspect is cone-shaped, and particularly hexagonal pyramid shape is called wedge (29); The feature of described wedge is, its root from the punching press of metallic plate is hexagon, from root to top, dwindles, and roughly its breadth depth ratio is one to one, or to one to one five.And the top of the wedge of the each described hexagonal pyramid shape on the face of described hush tube is provided with micropore (30), and its approximate diameter is advisable at 0.1 to 0.5 millimeter.On the face of described inner tube, as improvement, or its eyelet also can change and be made as many stamping projections, and being multi-prism taper is that multiaspect is cone-shaped, and particularly hexagonal pyramid shape, also can be described as wedge, but its breadth depth ratio is One to naught point eight, or to one. four to one.The how stupefied structure of many wedge composition wedges, the hexagonal that its arrangement at each face is honeycomb is polygonal, or random.In hush tube or can partly be filled with the nonmetallic materials of metallic fiber or heatproof; Or the sound-absorbing material that can partly be filled with resistance to middle temperature is as sound-absorbing porous material or flexible material and film material.Described porous material is as fiber-like, foam class, and particulate species, alone good, more or less mix application good.Also usable fibers class is as rock wool, or glass fiber, or particularly super glass wool of mineral wool; Or want fireproof by foam class; Or by particulate species as expanded perlite, honeycombed cement brick, and the fabric of heatproof, felt is filled or is attached; In order to further improved performance index, and comprehensive composition can reach the good object of noise reduction.Multiple material has complementary low-and high-frequency sound absorption usefulness.Many wedges, have added area of dissipation; Particularly many wedges that has micropore, not only have the micropore effect of noise reduction, and have the latent effectiveness of hypereccrisia liquid.As extending, many wedges also can reverse-drawing outwardly to add area of dissipation.Between silencer and engine, also can assemble the pad of not only making heat insulating mattress but also making beam.Between the outlet of silencer and described hush tube, also can assemble the pad of not only making heat insulating mattress but also making beam.Anechoic trap provided by the invention is provided with numerous large-area wedge regions, containing numerous wedges that has micropore, has wedge resistance to fall effect and micropore effect.The beneficial effect that anechoic trap provided by the invention causes is: increase the combination property of soundproof effect and lifting silencer as insertion loss, sound transmission loss, noise abatement amount and attenuation, and cooling.A kind of inventive concept is as hovered as ghost: if with thick soft foamed plastics, or as improving, fully utilize above-mentioned various silencing vibration-damping materials and with numerous large-area wedge regions, be located at mowing table (58), referring to Figure 23, and mower many places are as headstock hood, as vehicle body, the vehicle seat of what vehicle frame upper center was to the rear have noise reduction, and there is the receipts grass box of noise reduction at car rear, is expected to receive the effect of security protection and noise abatement.In addition, be saddle horse operator's personal protection, annex of the present invention is furnished with earplug, anti-sound cotton, earmuff and anti-sound head helmet.Also be provided with the artificial foot protection plate containing turning joint in both sides, mower middle part.The described artificial foot protection plate containing turning joint being provided with in both sides, mower middle part is made up of protective plate and turning joint; It is characterized in that described protective plate is sound absorption material and a left side of selecting, right each one; But in the time sometimes will laying side Lysimachia sikokiana plate on right side, just an on the left side is laid artificial foot protection plate; This protective plate can be located at that to cut dish upper, profile preferably foot-shape have the bigger waveform in two, warning association and an artistic image of being careful to strengthen foot; Described protective plate preferably uses more soft but not too soft shore hardness at such as rubber of 65 to 95 materials, polyurethane or polyvinyl chloride are made main sheet material, its usefulness is to discharge water while putting down work, for example be placed on while cutting dish (58) both sides, the more difficult wound grass of adagio, and rubber slab is more convenient for casing.Described protective plate also can be used the material of hard.Described protection edges of boards are provided with mobilizable hinge, do not limit one or more or with flexible material, then are aided with stop before going too far determinate spacing, if can make described protective plate decontrol to work and turn be up convenient to case just passable.As extending or improving, described protective plate also can be made as dismountable, when work, puts, and while work, takes off.In order to prevent trouble before it happens, put prevention first, guarantee that the complete machine of a large amount of shipment all can detect by false pin.Described protective plate also can be used on other place of fuselage, and for example the top of two trailing wheels is protected.As another embodiment, also available acoustic material is made car load not to be open, but on have top, or totally-enclosed car type, shines in order to gear, or full sound insulation.The beneficial effect of various noise abatement measures is: not only utilize the different characteristic impedance of sound-absorbing material, reduce reflected sound, and utilize aperture low frequency diffraction shadow zone principle, establish sound barrier and weaken high-frequency noise.Described earplug is many with pre-mould mode earplug, is molded as certain geometry with flexible plastic or soft rubber; Or use foamed plastics earplug; In the hope of sound insulation property and comfortableness.Described anti-sound cotton be with super glass wool through Chemical softnessprocess and making, the most handy 1-3 micron diameter be good; And make fritter taper, so that plug is in one's ear; The sound insulation of anti-sound cotton is more effective than common cotton, and sound-insulation value improves along with the increase of noise frequency, more effective to isolated high-frequency noise, uses anti-sound cotton, not only without prejudice to linguistic relationships, and speech articulation is increased.Described earmuff is the earflap device of earphone class, or uses music earmuff, increases the enjoyment of work.Described anti-sound head helmet is motorcycle helmet class, also has security effect.

The to the rear vehicle seat that has noise reduction of described vehicle frame upper center is also characteristic: vehicle seat is surrounded by thick noise reduction foamed material, removable before and after vehicle seat; Vehicle seat is provided with people to be connected while sitting down, when people leaves with regard to obstructed limit protection switch; Or non-contacting human inductor is sensor, also there is protective effect.There is the receipts grass box (50) of noise reduction at described car rear, is provided with 2 hooks, it is characterized in that S shape, has on the hanger of pin to hang over 2 of being located at after vehicle frame, and pin is to be stuck in actively in S shape, and object is that manually gyration is become reconciled and got to fall grass.

The described one side Timing Belt that two cuttves are driven in the same way, find too tightly in workshop, and fortunately on production line, do not install, and as korean pine, easily leapfrog and asynchronous once in a while again.As improvement, in order to make to drive in the same way the good installation of one side Timing Belt (63) of two cuttves, referring to Figure 21, be equipped with regulating wheel (63c), described regulating wheel (63c) is to contact without the flank of tooth with one side Timing Belt (63), so described regulating wheel is anodontia circle wheel; It is upper that regulating wheel is contained in tensioning support (63d), and tensioning support (63d) is adjusted taking the bolt (63e) fixed as balance pivot actively; Be to be inferred by the adjusting bolt (63f) on the minor adjustment frame (63h) of fixing and setting nut (63g), facilitated installation, and eliminated asynchrony phenomenon.

As improvement, car load is made and is not open with acoustic material, but on have top, or totally-enclosed car type, or make large-scale integral car, can be beneficial to that gear shines or full sound insulation; Or with the splicing of several bulks.Head fuselage everywhere or whole or spell all right.Headstock hood shown in Figure 22 (41) and vehicle body (50c), also can whole or spell.For example, before and after vehicle body (40c) can be divided into two major parts, can plug together and receive the Shang great Gai of grass box rear a bulk of dividing.Head fuselage everywhere or whole or spell all right, also mainly refer to anti-noise structure, be stretched as head fuselage and the ceding of Taiwan of honeycomb wedge convex concave as steel plate is molded, or iron plate attaches large of the honeycomb wedge convex concave of injection molded, join again described acoustic material as foamed material, sound-absorbing porous material, foam cement or foamed plastic, or flexible material and film material; Or attach, or directly mold pressing.Or add azoic foaming agent bi-component in mould, with form outer hard in foaming and solidify as the structure of portable refrigerator; Or double-deck various large blowing part that is blow molded into large-area honeycomb and wedge sample convex concave, as head and fuselage, then attach thick foamed plastic.Fully utilize above-mentioned various silencing vibration-damping materials and be located at mowing table (58) with numerous large-area wedge regions, headstock hood (41), vehicle body (50c), there is the vehicle seat of noise reduction, there is the receipts grass box of noise reduction, or make the car body of large-scale integral, or add azoic foaming agent bi-component in mould, with form outer hard in foaming and the large part that solidifies as the structure of portable refrigerator; Or double-deck various large blowing part that is blow molded into large-area honeycomb and wedge sample convex concave, or attach again thick foamed plastic.To sum up, therefore there is the beneficial effect of various noise abatement measures: not only utilize the different characteristic impedance of sound-absorbing material, reduce reflected sound, and utilize aperture low frequency diffraction shadow zone principle, establish sound barrier and weaken high-frequency noise.The connecting place of the airstrainer (44) that has the headstock hood (41) of noise reduction and eliminate the noise has two car lights (43), should note sticky seam, does not leak very much sound, more will note temperature rise; If with lamp be LCD luminous tube, temperature rise is out of question; The airstrainer (44) of eliminating the noise the foamed material of handy air filter is fixed and uses Gate net, not only air filter but also noise reduction.

Science and improvement are constantly to improve with endless.When actual mowing, sometimes meet stone and hinder cutter; By the regulation of blade test, put in blade with steel pipe and cut district again, do not allow fracture, but flexible, the grass cutter with self-clutched blade that this inspires us to make improvements, and have the cutter of protection.First changed repeatedly cutter, then changed multiple with cutter from the relevant part of clutch.Object is that the conventional mowing-apparatus part used in order to overcome hay mower prior art is more, and rotary inertia is larger, and power hungry is more, and cutter is to be rigidly connected, and there is no the shortcoming of security protection.A kind of improvement of hay mower cutting mechanism was provided, and was the cutter of not wanting independent tool rest for hay mower, was called the hay mower hay knife without tool rest, and one can make part reduce, and cost reduces; Two can make weight saving, and consumed power reduces; Three can make it have the function of security protection.But, still there are tool rest and the accessory of the mower that several moneys have shaped, wish few change in the hope of applying, thus narrate the application of the tool rest of several on-of pin formulas below, then tell about the tool rest of the end-face friction of several distortion.

Referring to Figure 28, it is the schematic diagram of the tool rest assembly of conventional hay mower; The tool rest assembly with on-of pin of described improved grass cutter with self-clutched blade, mainly by blade (60), tool rest (60a), power belt wheel (60d), and cutter on-of pin (60c), and elastic ring (60e) forms, blade (60) is contained on tool rest (60a), tool rest (60a) and power belt wheel (60d) are contained on the engine spindle of cotter way, it is characterized in that: described tool rest (60a) is provided with the pin-and-hole that can lay cutter on-of pin, referring to Figure 29; Put into cutter on-of pin (60c), referring to Figure 30 and Figure 31; Exterior flexible circle (60e), the head of described cutter on-of pin (60c) is provided with inclined-plane, or 2 inclined-planes, referring to Figure 35 and Figure 36, or arcwall face, or involute face, so that in the time that torsional moment is excessive, radial component on inclined-plane exceedes the 68Nm of regulation, makes it to get out of the way to shrink back; The afterbody of described cutter on-of pin (60c) is provided with concave surface, to be installed elastic ring; Described elastic ring (60e) is annular closed-coil spring, referring to Figure 38; Certainly, described elastic ring can be used elastic tape; Or the afterbody of on-of pin is provided with stage clip or torsion spring.Because press careless mower, referring to Figure 27, its tool rest (60a2) and power belt wheel are overall aluminium castings, be contained on the engine spindle of cotter way, so pin-and-hole is located between belt wheel and tool rest, put cutter on-of pin (60c) again, then put described elastic ring, described elastic ring can directly be put into elastic tape; The closed-coil spring or complete of annular, or also can use with the long closed-coil spring hook joint of stretched; As long as its string diameter and circle footpath are share, please note that material and thermal treatment have impact when string diameter is large and enclose footpath hour power is large, after primary election, then test, then fixed output quota.Described elastic tape for elastic ring, with solid, cross section is circular; Or with hollow, cross section is tubular; If the afterbody of on-of pin is provided with stage clip or torsion spring, the afterbody of its pin preferably bores an axial hole, and the degree of depth will have the half of pin total length, in order to the steel wire that inserts stage clip or torsion spring.The string diameter of described elastic ring is preferably justified; Certainly, also can use the spring of bandlet shape.

Self-clutched blade is while mowing for reality, meets stone by chance and can also allow and operate on and do not hinder cutter, and for the blade test by a kind of regulation, put in blade with steel pipe and cut district, do not allow fracture, but flexible, so made improved grass cutter with self-clutched blade, and had the multiple cutter of protection.First changed repeatedly cutter, then changed multiple with cutter from the relevant part of clutch; Object is that the conventional mowing-apparatus part used in order to overcome hay mower prior art is more, and rotary inertia is larger, and power hungry is more, and cutter is to be rigidly connected, and there is no the shortcoming of security protection; The special improvement that a few money hay mower cutting mechanisms are provided again, is the tool rest of the end-face friction of several distortion, mainly tells about several friction plates of the tool rest of the end-face friction of distortion.

Please refer to Figure 39, there is the schematic perspective view that end clutch tool rest is housed for mower of cutter clutch, and Figure 44, it is the sectional arrangement drawing that end clutch tool rest is housed for mower that has cutter clutch, there is mower for the tool rest assembly that end clutch be housed of cutter from clutch, mainly by end clutch tool rest (60a3), tool rest lower sheeting (60b3), clutch-plate under tool rest (60k), clutch-plate on tool rest (60m), and cushion block in cutter (60h) and tool rest, and unillustrated line shaft and cutter fastening bolt form, it is characterized in that: the described tool rest that has end clutch, cushion block in in-built tool rest, refill on line shaft, end clutch tool rest (60a3) is housed from top to bottom successively, clutch-plate on tool rest (60m), cutter (60h) or other cutter, clutch-plate under tool rest (60k), tool rest lower sheeting (60b3), cutter fastening bolt, referring to Figure 41, the end face of the described tool rest (60a3) that has end clutch, be provided with groove, the projection that itself and tool rest lower sheeting (60b3) are provided with, while matching, the root of projection is larger, in any case cutter is clipped in the middle and hold again tight, have end clutch the large plane of tool rest and the large plane of tool rest lower sheeting always gapped, or establish counterbore (60z) to replace groove at the end face of tool rest, and establish banking pin (60q) to replace projection at tool rest lower sheeting, need more than two pairs, as long as the effective length of banking pin is greater than the degree of depth of counterbore, gapped, or repairing nail or cushioning, that gap is suitable for is good.Then at gap location, clutch-plate (60k) under clutch-plate on suitable tool rest (60m) and tool rest is installed, in the time of usual use, after installing, its frictional force of rubbing enough makes swivel moving, and in the time extremely touching stone or steel pipe, under upper clutch-plate and tool rest, the frictional force of clutch-plate is not enough, cutter is skidded, and play cutter from clutch action.In order to compensate contingent manufacturing tolerance and assembling form and position tolerance, not only the material of clutch-plate under upper clutch-plate and tool rest is selected softlyer, without steel, and with plastics, the most handy PP, polypropylene, or PU, polyurethane, also can use other softwood certainly, for example fabric; And clutch-plate under upper clutch-plate and tool rest is carried out to various distortion improvement, in order to there being the assembling frictional resistance being applicable to from clutch; For example, referring to Figure 45 and Figure 46, be the mower end clutch tool rest that has a cutter clutch have a clutch-plate under multiple tooth tool rest (60k), minimum 2 teeth, maximum 100 teeth, multiple tooth or press circumference uniform distribution and arrange, or press multiple tooth parallel composition convex concave; The described best indention of multiple tooth per tooth, that is to say, the per tooth preferably left side is right angle, and the right is the casting lug thereon at obtuse angle, to be applicable to the characteristic of the single direction rotation of hay knife; Again for example, referring to Figure 47, be the mower end clutch tool rest that has a cutter clutch have a clutch-plate on multiple tooth tool rest (60M1), the feature that it is multiple tooth, the similar described clutch-plate under multiple tooth tool rest (60k) that has, and be also minimum 2 teeth, maximum 100 teeth, multiple tooth or press circumference uniform distribution and arrange, or by multiple tooth parallel composition convex concave; The described best indention of multiple tooth per tooth, that is to say, the per tooth preferably left side is right angle, and the right is the casting lug thereon at obtuse angle, to be applicable to the characteristic of the single direction rotation of hay knife; But add in addition, that is exactly described multiple tooth, not one side still, and or establish two-sided; This or establish two-sided following and all upper clutch-plates that are also applicable to.For example,, as improvement, referring to Figure 48, be the schematic diagram that has the tool rest clutch-plate (60m2) that has many convex-concaves of the mower end clutch tool rest of cutter clutch, it is provided with large small end, or has multiple convex-concaves of the different depths, its convex-concave or circle, or side, the different depths also had; Being re-used as improvement, referring to Figure 49, is the tool rest clutch-plate (60m3) that has many setback that has the mower end clutch tool rest of cutter clutch; Referring to Figure 50, be multistage flail knife, at least 3 sections, every limit, every section of movable riveted joint or screw loose joint, the first paragraph (60n1) that connects tool rest is established concave arc, and it is gapped; Flail knife or with there being sword chain, or nylon rope, steel wire rope.

Brief description of the drawings

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is the schematic three dimensional views of amplifying without the part of seat cutter.

Fig. 2 is the two-dimensional representation without the embodiment 1 of seat cutter.

Fig. 3 is the schematic three dimensional views without seat cutter.

Fig. 4 is the schematic three dimensional views without another visual angle of seat cutter.

Fig. 5 is original engine spindle mowing-apparatus explosive view, as shown in the figure, by drive pulley (11), cushion cover (12), key (13), tool rest (14), original cutter (15), large pressure pad circle (16), fastening bolt (17) forms.

The two-dimensional representation of the embodiment 2 that Fig. 6 is.

Fig. 7 is the two-dimensional representation without the embodiment 3 of seat cutter.

Fig. 8 is the two-dimensional representation without the embodiment 4 of seat cutter.

Fig. 9 is the two-dimensional representation without the embodiment 5 of seat cutter.

Figure 10 is the midship section schematic diagram without seat cutter.

Figure 11 is the local enlarged diagram without the middle part of the midship section of seat cutter.

Figure 12 is the schematic top plan view of the most portions of multi-tooth cutter.

Figure 13 is the front-view schematic diagram that the part of multi-tooth cutter is cutd open.

Figure 14 is that three of a kind of multi-tooth cutter is looked schematic diagram.

Figure 15 is the part schematic side view that is provided with the multi-tooth cutter of wind wing elliptical aperture (8).

Figure 16 is the part schematic side view that is provided with the multi-tooth cutter of wind wing honeycomb (9).

Figure 17 is the cross-sectional schematic of wind wing honeycomb (9).

Figure 18 is that three of wind wing honeycomb (9) is looked schematic diagram.

Figure 19 is the cross-sectional schematic of using the stretched back of a bow (19) of steel plate punched.

Figure 20 is that hunchbacked bottom polishes the cross-sectional schematic that grinds cutting edge (20).

Figure 21 drives the one side Timing Belt (63) of two cuttves to be equipped with the schematic diagram of regulating wheel (63c) in the same way.

Figure 22 is the schematic side view of riding mower complete machine.

Figure 23 is the elevational schematic view of removing the riding mower complete machine of shell.

Figure 24 is the schematic side view of removing the height-regulating mechanism of the riding mower complete machine of shell.

Figure 25 is the bel-drivenn elevational schematic view of removing the mower of shell.

Figure 26 is the schematic diagram of tiltedly looking up that has cutter drive pulley (61c) that removes the riding mower complete machine of shell.

Figure 27 is the schematic diagram of tiltedly looking up that hand push is pressed careless mower complete machine.

Figure 28 is the mowing machine knife part schematic diagram that has the pin of cutter clutch.

Figure 29 is the schematic diagram that has the mower tool rest of the pin-and-hole of cutter clutch.

Figure 30 is the schematic top plan view that the mower tool rest of the pin-and-hole that has cutter clutch of on-of pin is housed.

Figure 31 is the schematic perspective view that the mower tool rest of the pin-and-hole that has cutter clutch of on-of pin is housed.

Figure 32 be have cutter clutch pin-and-hole the schematic diagram that has cutter drive pulley (61c) of riding mower complete machine.

Figure 33 is the schematic diagram of hay knife (60).

Figure 34 is the schematic diagram of tiltedly looking up that has cutter drive pulley (61c) that removes the riding mower complete machine of shell.

Figure 35 is the schematic diagram of cutter on-of pin.

Figure 36 is the schematic diagram of the another angle of cutter on-of pin.

Figure 37 is the schematic perspective view that the pressure grass mower tool rest of the pin-and-hole that has cutter clutch of on-of pin is housed.

Figure 32 be have cutter clutch pin-and-hole the schematic diagram that has cutter drive pulley (61c) of riding mower complete machine.

Figure 38 is the schematic diagram of cutter elastic ring (60e) for on-of pin.

Figure 39 is the schematic perspective view that end clutch tool rest is housed for mower that has cutter clutch.

Figure 40 is the schematic diagram that the lower clutch-plate of holding clutch tool rest is housed for mower that has cutter clutch.

Figure 41 is the schematic diagram that the tool rest of holding clutch tool rest is housed for mower that has cutter clutch.

Figure 42 is the schematic diagram that the tool rest lower sheeting of holding clutch tool rest is housed for mower that has cutter clutch.

Figure 43 is the front view that end clutch tool rest is housed for mower that has cutter clutch.

Figure 44 is the sectional arrangement drawing that end clutch tool rest is housed for mower that has cutter clutch.

Figure 45 is the schematic diagram that has clutch-plate under multiple tooth tool rest that has the mower end clutch tool rest of cutter clutch.

Figure 46 is the schematic diagram that has another angle of clutch-plate under multiple tooth tool rest that has the mower end clutch tool rest of cutter clutch.

Figure 47 is the schematic diagram that has clutch-plate on multiple tooth tool rest that has the mower end clutch tool rest of cutter clutch.

Figure 48 is the schematic diagram that has the tool rest clutch-plate that has many convex-concaves of the mower end clutch tool rest of cutter clutch.

Figure 49 is the schematic diagram that has the tool rest clutch-plate that has many setback of the mower end clutch tool rest of cutter clutch.

Figure 50 is the schematic diagram that mower is used the flail knife that has more piece.

Figure 51 be reverse drive one in front and one in back the double V-belt of two cuttves be equipped with the schematic diagram of 3 regulating wheels.

Figure 52 is the schematic diagram that the double-sided synchronous belt of two cuttves of reverse drive is equipped with 2 regulating wheels.

Figure 53 is to be that belt wheel center (23a, 23b) distance is A by diagram optimum seeking method by two cutter gyroaxises, draws the schematic diagram of heavy swath B.

Figure 54 is while just not touched by two cuttves by diagram optimum seeking method, obtains the schematic diagram of maximum heavy swath B.

Figure 55 has the schematic diagram of cutter from the riding mower of clutch.

Figure 56 is the schematic diagram that cutter is heightened gear.

Figure 57 is the schematic diagram of wedge.

Figure 58 is the schematic diagram of receiving the hook of grass box.

Figure 59 is the schematic diagram of the fluted disc of steering wheel.

Figure 60 is the schematic diagram of noise abatement headstock hood.

Figure 61 is the schematic diagram of noise abatement vehicle body 50c.

Figure 62 is the generalized section of the fluted disc of steering wheel.

Figure 63 establishes counterbore (60z) and establishes the local enlarged diagram of assembling of banking pin (60q) at tool rest lower sheeting at the end face of tool rest.

Figure 64 is the front elevational schematic of the fluted disc of steering wheel.

Figure 65 is the local enlarged diagram of hay knife (60).

Figure 66 is the schematic diagram in wedge cross section.

Figure 67 is the schematic diagram of hush tube (47) and tank (42).

Figure 68 is the schematic diagram of the noise elimination inner tube (47a) of hush tube (47).

Figure 69 is the schematic diagram of taking the hydraulic stepless speed change driving back axle of a half-shells apart.

Figure 70 is the schematic diagram that cuts dish (58) that has honeycomb (47f) and wedge (47b) of noise abatement.

As shown in Fig. 1 to Figure 70, in figure,

1. are key (1);

2. are pit (2);

3. are keyway (3);

4. are keyway (4);

5. are key prominent (5);

6. are keyway square hole (6);

7. are key (7);

The 18.th, through hole (18);

The 19.th, the back of a bow (19);

The 20.th, hunchbacked bottom polishes the cutting edge (20) grinding;

The 24.th, side multiple tooth (24);

The 25.th, apical tooth (25);

The 26.th, hold multiple tooth (26);

The 27.th, wind wing cutting edge (27);

The 29.th, wedge (29);

The 30.th, the micropore (30) of wedge;

The 41.th, headstock hood (41);

The 42.th, tank (42);

The 43.th, car light (43);

The 44.th, the airstrainer (44) of eliminating the noise;

The 45.th, dual fail-safe thick stick (45);

46. is two front-wheels (46);

46b. is two trailing wheels (46b);

The 47.th, hush tube (47);

47a. is the noise elimination inner tube (47a) of hush tube (47);

The 48.th, steering wheel (48);

The 49.th, seat (49);

The 50.th, the receipts grass box (50) of noise reduction;

50c. is vehicle body (50c);

The 51.th, engine spindle and belt pulley (51);

The 52.th, foot brake device (52);

The 53.th, Hand brake apparatus (53);

The 54.th, drive shift (54);

54b. retreats shelves (54b);

The 55.th, heighten handle (55);

56. are provided in a side of after vehicle frame 2 hanger (56) of pin;

The 57.th, the S-hook (57) of receipts grass box;

The 58.th, cut dish (58);

58a. is front dead axle (58a);

58b. is front moving axis (58b);

58c. is rear dead axle (58c);

58d. is rear moving axis (58d)

58h. is steel wire rope (58h);

58g. is sector gear (58g);

58f. is ratchet (58f);

The 60.th, hay knife (60);

60z. is two counterbore 60z of end surface of knife holder;

60q. is two banking pin 60Q of the end face of tool rest lower sheeting;

60a. is wind wing cutting edge (60a);

The 61.th, engine is to the driving belt (61) of cutter;

The 62.th, engine is to the belt (62) of the belt pulley on the turning cylinder of the first plunger pump of back axle;

The 63.th, the one side Timing Belt (63) of two cuttves of driving;

63a. is that the gyroaxis of the first cutter is belt wheel center (63a);

63b. is that the gyroaxis of the second cutter is belt wheel center (63b);

A. the gyroaxis that is two cuttves is belt wheel center (23a, 23b) distance;

B. be heavy swath B;

D. two point widths that are strip-shaped cutter (20) are diameter D;

63c. is regulating wheel (63c);

63d. is that regulating wheel is contained in tensioning support (63d);

63e. is the fixing bolt (63e) of tensioning support;

63f. is adjusting bolt (63f);

63g. sets up mule mother (63g);

63h. is fixing minor adjustment frame (63h);

The 64.th, the driven back axle (64) with hydraulic stepless speed change;

64b. is the clutch that pilot operated valve device group connects the first plunger pump (64b);

64c. is stepless speed changing mechanism and the brake device of the second plunger pump (64c) and pilot operated valve device group;

64d. is the change-speed gearing (64d) of the second plunger pump;

64e. is idler gear (64e);

64h. is the star-wheel (64h) of planetary gear assembly;

64g. is gear wheel (64g);

64f. is intermediate speed pinion (64f);

64k. is inlet valve (64k);

64j. is permanent magnet (64j);

Embodiment

Below in conjunction with drawings and Examples, the present invention is further described.

Improving engine spindle mowing-apparatus, is first the hay mower hay knife of manufacturing without tool rest.Preferably be applicable to the material of the steel plate of cutter processed, beat edge break and many places prominent protruding, to improve the modulus of the mechanics of materials, reduce steel plate thickness; Also will have for example half annealing and modifier treatment of applicable front thermal treatment, drawing and forming or thermoforming, then punch forming, make pit 2, key 1, and keyway 3, equals the internal diameter of described pit 2 or tolerance is slightly larger than the external diameter of engine spindle.Carry out again normalizing and Ageing Treatment; And polishing correction and oiling or blackening process.The centre of the bottom of described pit 2 is porose, so that through fastening bolt 17; The key of the type that fruit has is longer, is again to utilize steel plate material and direct punching press bending forming, and allowing the hole of the centre of the bottom of described pit 2 is combination bore of circular hole and oblong aperture.Hay mower is with the external diameter of engine spindle if 22.2mm, and fastening bolt 17 is 3/8-24UNF2B, and the hole in the middle of is that circular hole is got 8-9mm diameter, or with the combination bore of oblong aperture; Again because it is 4.775mm that oblong aperture wide approximates key wide, therefore the combination bore of circular hole and oblong aperture is feasible.The key 1 that the band of position of laying key at the edge of described pit 2 is provided with, also can or glued joint and make with welding.The two sides of its square-section, at least one side, installation sticker are in the keyway of engine spindle; Please noting said at least one side here, is as usual, and observing hay knife by observer's eye to earth's surface is in the direction of the clock, and unique direction rotation, therefore key only has a side to play a driving role.The particularly root of described key 1; namely key 1 and the steel plate of cutter and with the connecting portion of the band of position of laying key at the edge of described pit 2; preferably there is the crack arrest groove of punching press bending; to test out suitable shear strength; make to mow by key, again can be in the time encountering water pipe key root overloading and protect.Suggestion sampling on special testing stand is revised after surveying.The described method of correctly selecting suitable shear strength brief and concise introduction, repeats no more.Select suitable shear strength method two are the methods of facts have proved, at the root of described key 1, namely key 1 and the steel plate of cutter and with the connecting portion of the band of position of laying key at the edge of described pit 2, the crack arrest groove that has punching press bending without wheel, or make with welding or splicing, if facts have proved, still its intensity is too high, take material reducing to cut out method, at the root of its key, dig material the root portion cross section of key is attenuated, to select suitable shear strength.Described keyway 3 is in the band of position of laying common key 13 at the edge of described pit 2, arrange and the same wide keyway of keyway of engine spindle, this for some occasion for subsequent use, for example, while adding woodruff key, for example, while adding spare key.On engine spindle, for the type without from walking, in keyway, directly pack the hay mower hay knife without tool rest of the present invention into, make key 1 to main shaft keyway, described pit 2 is contained on main shaft, then penetrates fastening bolt 17, notice that conventional bolt is all anti-silk instead of positive silk.On engine spindle, for having from the type of walking, in keyway, to first pack its upper end into and be arc tips with main shaft keyway on arc end match, and the main pulley key that its lower end and key 1 join then packs main pulley into, reinstall the above-mentioned hay mower hay knife without tool rest of the present invention, make key 1 to main shaft keyway, described pit 2 is contained on main shaft, then penetrates fastening bolt 17, notice that conventional bolt is all anti-silk instead of positive silk.Key is crucial, preferably weakens key body examination survey moment of torsion, and selective examination in batches.

As different several styles, as shown in Figure 2, can be described as embodiment 1, it is characterized in that, at the connecting portion of the band of position of laying key at the edge of described pit 2, being provided with key 1, be provided with described keyway 3 at opposite side; The centre of described pit is provided with through hole 18; Its key 1 can face toward main shaft keyway, and its keyway 3 is for subsequent use; For example in the time that the customer requirement having adds woodruff key can with it; Described key, as improvement, for example, weakens its intensity, cuts several places on key, attenuate, and boring, uses shaky material, and changing steel key is aluminium key or plastic, makes just enough desired cutting torsions of key, and for example 58 Ns of rice Nm, so that from clutch.For example after key 1 is damaged, can add again spare key in keyway 3, make repeatedly regeneration of cutter.

As different several styles, as shown in Figure 6, can be described as embodiment 2, it is characterized in that (being at least a side) is provided with keyway 4 in both sides at the connecting portion of the band of position of laying key at the edge of described pit 2; The centre of described pit is provided with through hole 18.Its cutter itself be not with key, need separately put key and face toward main shaft keyway and its keyway 4, with one, another is for subsequent use; For example in the time that the customer requirement having adds woodruff key can with it; For example after key 1 is damaged, can add again spare key in keyway 3, make repeatedly regeneration of cutter.

As different several styles, as shown in Figure 7, can be described as embodiment 3, it is characterized in that, in a side of the connecting portion of the band of position of laying key at the edge of described pit 2, being provided with inside key prominent 5; The centre of described pit is still provided with through hole 18.The inside key prominent 5 of its cutter own is exactly the effect of key, does not need separately to put key and faces toward main shaft keyway; Also can be used as improvement, then add another keyway for subsequent use.

As different several styles, as shown in Figure 8, can be described as embodiment 4, it is characterized in that saving pit, and at the connecting portion of the band of position of laying key at the edge of former described pit 2, be provided with keyway square hole 6 in a side; Put large pressure pad circle 16 at described former pit, then put fastening bolt 17.

As different several styles, as shown in Figure 9, can be described as embodiment 5, it is characterized in that saving pit, and at the connecting portion of the band of position of laying key at the edge of former described pit 2, be provided with keyway square hole in a side, be provided with described key 7 at opposite side, this key or fixing for example welding and stickup, or the key of the another dress of living, particularly described key part have cuts down to be suitable for the requirement of required security intensity; Centre at described former pit is still provided with through hole 18.Its cutter itself or be not with key, need separately put key and face toward main shaft keyway and its keyway 6; Or the band key of its cutter own goes out key protruding 7; Blade itself to be provided with keyway square hole for subsequent use to do; Cutter itself do not make pit, centre is still provided with through hole 18, makes cutter be flattened on spindle end, makes through hole 18 aim at spindle end mesopore, also must put large pressure pad circle 16, then puts fastening bolt 17.Notice that conventional bolt is all anti-silk instead of positive silk.Also must regulate two point of a knife balances and carry out false pin test.

Only have sword and anodontia in order to make up the side of common hilted broadsword again, particularly it is along the anodontia shortcoming of the end face of circumference, and the present invention has done many improvement for many years.For example material, from 65Mn to 40MnB, or general steel plate carburizing, tried all can use; But manufacture when multiple tooth, establish more and give a discount and thickness thinning, with the good extrusion forming in limit; The most handy heat stamping and shaping, profile of tooth is more satisfactory.Thermal treatment also can be used as carbo-nitriding.Mechanism is as hilted broadsword, multitool, and stationary knife, the cutter of living, form is as flat cutter, jack knife, tulwar, blackout, sprays black moulding, and has seat, without seat, various hay mower hay knives, all can be improved to multi-tooth hey knife for lawn mower of the present invention.Referring to Figure 12, Figure 13, Figure 14 because described multi-tooth hey knife for lawn mower, mainly multiple tooth 24 by side, apical tooth 25, hold multiple tooth 26, wind wing cutting edge 27, wind wing elliptical aperture 28, the middle through-hole 18 of wind wing honeycomb 29 and cutter hub, key 1, pit 2, keyway 3 forms; It is characterized in that, described side multiple tooth 24 is provided in a side of cutter hub steel plate side, namely the place of original blade, be in the direction of advance of hay knife rotation, taking the middle through-hole 18 of cutter hub as reference, a steel plate side is provided with multiple teeth on one side, at least 1, or nearly hundred, for example 16.If tooth is few, the outermost end of the rotation round that preferentially keeps to the side to lean on; And in the outermost end by rotation round, be provided with multiple tooth 26, at least 1 of described end, or reach dozens of, for example 3; In described side multiple tooth 24 and described multiple tooth 26 junctions of end, be provided with described apical tooth 25 again.Referring to Figure 20, be that described side is multiple tooth 24, described end is multiple tooth 26, and the cross section of the tooth of described apical tooth 25, has the feature of common tooth; So can be by identical multiple upper and lower module, stretched steel plate punched hunchbacked 19, burn heat and suppress, make hunchbacked both sides steel plate have certain angle, referring to Figure 19.Hunchbacked bottom is polished and grinds cutting edge 20, referring to Figure 20.In addition, described side is multiple tooth 24, and described end is multiple tooth 26, and the feature at (from overlooking and schematic perspective view) of the tooth of described apical tooth 25 common edge is that each described tooth has side, has wedge angle; And dual-side or at least one side have cutting edge; Wedge angle or fillet, the not too angle of point of passing through mutually, but general shape to be the head of tooth little and root is thick; The side of described tooth or straight hypotenuse, or curved, arc, or saw thread form is not the multiple tooth saw tooth of saying whole cutter, but the cutting edge of saying each tooth is also or saw tooth shape; Or prominent arc, or arcs of recesses, particularly the side of described tooth is arc, preferably involute shape.The multiple tooth length that has greatly increased blade than hilted broadsword, has many folding swords and has multiple impact cutting angle and slip cutting angle, in the time that cutter flys in circles, and cutting grass, careless bar and straw have stronger usefulness, and mill structure at the bottom of the hunchbacked formula of shear blade makes it have wearability and saves power consumption.Because material to be cut is flexible, when single-blade, allow careless phenomenon many, and to hug careless function while rolling over sword stronger more.

The wind wing of cutter is provided with described wind wing cutting edge 27, it is characterized in that, described wind wing is provided with at least one or more breach, and for example 4, the edge of each breach is also provided with cutting edge 27, twines grass in order to cut-out, can be referring to Figure 13; First beat breach, the cutting edge of regrinding out, more curved wind wing more easily processes, and certainly uses compound die good.Wind wing elliptical aperture 28 on the wind wing of cutter or described in being provided with, with subpunch porous, more curved wing is better processed; Described elliptical hole at least one, or nearly hundred, for example 6, in the time that hay knife flys in circles, wind wing pushes away grass and incites wind action, part air-flow, through described wind wing elliptical aperture 28, has the booster action of noise reduction.On the wind wing of cutter or be provided with described wind wing honeycomb 29, described wind wing honeycomb 29 at least one, or nearly tens, for example 6, particularly described wind wing honeycomb 29 is hexagonal pyramid shapes, and there is through hole 30 at middle part; In the time that hay knife flys in circles, wind wing pushes away grass and incites wind action, and part air-flow is through described wind wing honeycomb 29, and collocation suitably just has noise elimination wedge honeycomb effect and noise reduction booster action preferably.

Mower, as its name suggests, can mow exactly.No matter be riding mower, still press careless mower, or the hay mower of hand push, all be unable to do without hay knife.Although tool rest form or power transmission mode slightly change, and change ten thousand times without leaving the original aim or stand; Every mower, has surpassed moment of torsion and just can have safety protection function as long as be equiped with, and just can be commonly referred to as the mower of cutter from clutch.

The present invention relates to a kind of riding mower, main improvement purpose is to make resultant effect both be conducive to wide cut to mow, and operates comfortablely, and infinitely variable speeds, is conducive to again noise reduction, environmental protection and safety.Because taked multiple noise reduction measure and technical scheme and preferred graphical designs method, therefore there is the riding mower of noise reduction measure and hydraulic stepless speed change, comprise the propons turning to that connects two front-wheels, connect the driven back axle with hydraulic stepless speed change of two trailing wheels, the vehicle frame with dual fail-safe thick stick of four-wheel top, the mowing-apparatus that has noise reduction of vehicle frame below, the engine with anechoic trap that vehicle frame top is forward and have the headstock hood 41 of noise reduction and the airstrainer 44 of eliminating the noise, the vehicle seat of what vehicle frame upper center was to the rear have noise reduction, and there are receipts grass box 50 and the vehicle body 50c of noise reduction in car rear, and the earplug of being furnished with for saddle horse operator's personal protection, anti-sound cotton, earmuff and all annexes of anti-sound head helmet, its integrated quality increases.Again because there is the propons turning to of included two front-wheels of connection of the riding mower of noise reduction measure and hydraulic stepless speed change, be included between two front-wheels 46 by known parallelogram steering mechanism, the left cambered axle and the right cambered axle that connect by a connecting rod, described left cambered axle upper end is fixed on one end of control lever by a joint arm, the other end of control lever is connected in the gear of steering wheel 48 and has the fluted disc 48a of tapering upper, therefore be convenient to steering.As Figure 59, Figure 62, shown in Figure 64, the feature of described fluted disc 48a is: the tooth of its fluted disc 48a is internal tooth, and particularly inner toothed surface has tapering, and does not originally have; If external tooth, because external tooth is to the external tooth phenomenon of easily stepping down, does not have the external gear of internal gear and steering wheel to join and to obtain tacit agreement like this; Because be now improved to tapering or chamfering, just more easily match with oblique tooth again.Its tapering is less than 30 degree, preferably 18 degree; Install because fluted disc 48a is level, to connect parallelogram steering mechanism, and the axis of the gear of steering wheel 48 and plumb line are angled, are generally 18 degree, therefore convenient operation; The gap of form and position tolerance will be allocated by fact, and adds grease lubrication.

Because there is the driven back axle with hydraulic stepless speed change 64 of two trailing wheel 46b of the included connection of the riding mower of noise reduction measure and hydraulic stepless speed change, as shown in Figure 69, this is to remove multiple connecting screws and half back axle, and surplus half back axle and expose the front elevational schematic of inner two plunger pumps and pilot operated valve device group and multiple gears, described back axle comprises two semiaxis that are located between two rear wheels, between two semiaxis, be provided with differential mechanism, differential mechanism upwards connects stepless speed changing mechanism and the brake device of the second plunger pump 64c and pilot operated valve device group successively thus, connect again the clutch of the first plunger pump 64b through pilot operated valve device group, again via the belt 62 of the belt pulley on the turning cylinder of the first plunger pump, transmit the power of engine spindle 51, it is characterized in that: described differential mechanism comprises a pair of axle shaft gear, planetary gear assembly between axle shaft gear, the most handy 2 star-wheels of star-wheel 64h of planetary gear assembly, and each tooth number of star is 12, it is upper that planetary gear assembly is erected at a larger gear wheel 64g, and preferably its number of teeth is 53, described gear wheel 64g engages with intermediate speed pinion 64f, and preferably its number of teeth is 11, described intermediate speed pinion 64f is coaxial and connect firmly with idler gear 64e, and preferably its number of teeth is 48, described idler gear 64e engages with the change-speed gearing 64d of the second plunger pump, and preferably its number of teeth is 13, the reinforcement so formed decelerator, and formed differential mechanism and make to turn flexibly.The most handy 5 of the plunger of the second described plunger pump, more than the plunger of the first plunger pump, the cylinder diameter of each plunger is just larger, pretends as oil motor, and output torque is just larger.Because the coaxial brake disc that is provided with brake device of the change-speed gearing of the second plunger pump, on the back axle 64 nearby of brake disc, be provided with friction plate, brake bar and spring and form brake device, therefore be convenient to be connected with Hand brake apparatus 53 with the foot brake device 52 at vehicle frame middle part; Foot brake device 52 and the Hand brake apparatus 53 of this car are actually same set of mechanism.In the pilot operated valve device group between the second plunger pump and the first plunger pump, be provided with Shift lever, regulate and control on the one hand the oil inlet and outlet in pilot operated valve device group, the angle that changes on the other hand the plunger head inclined-plane of the first plunger pump changes output speed, therefore be convenient to the drive shift 54 at vehicle frame middle part with retreat a grade 54b and be connected, to form stepless speed changing mechanism; In the time of neutral gear, the angle on the plunger head inclined-plane of the first plunger pump is zero, dallies and no-output, and the first plunger pump has played the effect of clutch; Drive shift 54 with retreat a grade 54b and be connected, handle stepless speed changing mechanism; In the time stepping on drive shift 54, the Shift lever in the pilot operated valve device group between the second plunger pump and the first plunger pump, the oil-in in regulation and control pilot operated valve device group; Step on deeply, greatly the speed of a motor vehicle is fast to make oil-in; Step on shallowly, oil-feed is young, and the speed of a motor vehicle is slow, the existing stepless shift of historical facts or anecdotes; When depressing while retreating grade 54b, the Shift lever in the pilot operated valve device group between the second plunger pump and the first plunger pump is reverse, makes the oil inlet and outlet in pilot operated valve device group reverse, makes the second plunger pump reversion, drives decelerator and differential mechanism reversion below, makes it reversing.Use because the second plunger pump is here actually when oil motor, it drives change-speed gearing 64d to engage with series of gears, thus two semiaxis of driving and trailing wheel 46b.In the pilot operated valve device group between the second plunger pump and the first plunger pump, be also provided with parking bar, the interior hydraulic fluid port of regulation and control pilot operated valve device group, in the time pulling parking position, hydraulic fluid port in the D shape bar of the inside of parking bar hinders.Be provided with inlet valve 64k in described driven back axle 64 inside to be communicated with outer oil box, therefore convenient lubricated; In described driven back axle 64, be also provided with permanent magnet 64j, or with horseshoe magnet, effective because of You Ci rotation stream, or be located at many places, hold each steel and iron parts sneak into the iron filings in oil after wearing and tearing for a long time therefore be beneficial to.

Again because there is the vehicle frame with dual fail-safe thick stick of the included four-wheel top of the riding mower of noise reduction measure and hydraulic stepless speed change, as shown in Figure 2, front at car is provided with bumper, it is characterized in that: described bumper is parallel bars, or three, or more, and every thick stick is that two is curved, the pipe of middle straight or square tube, and have two place's stent support at least; Parallel bars are than single should more insuring; As improvement, described support is not rigidity, but flexible, for example, use spring, or elastomeric material is as rubber or polyurethane, therefore be more conducive to buffering.

Because there is the mowing-apparatus that has noise reduction of the included vehicle frame below of the riding mower of noise reduction measure and hydraulic stepless speed change, comprises and highly regulate part and mowing part again, referring to Figure 24, highly regulate part, press parallelogram principle, by the front dead axle (58a) and the rear dead axle 58c that are located on vehicle frame, and be located at and cut front moving axis 58b and the rear moving axis 58d of dish on 58 and be attached thereto moving rod member, and for the steel wire rope 58h pulling, sector gear 58g, ratchet 58f and heighten handle 55 and form, it is characterized in that: described be located at front dead axle 58a and the rear dead axle 58c on vehicle frame, and to be located at the front moving axis 58b and the rear moving axis 58d that cut on dish be four summits of parallelogram, its corresponding limit is parallel and equal between two, so, pull steel wire rope 58h by heightening handle 55 in any case, and by sector gear 58g, ratchet 58f is to several gears of heightening, front dead axle 58a on vehicle frame and the line of rear dead axle 58c, always parallel with the front moving axis 58b cutting on dish with rear moving axis 58d, thereby normally work fundamentally having ensured to cut the upper and lower translation of dish, but still will mix up the length of steel wire rope 58h when practical, and the allotment of sector gear 58g and ratchet 58f.Cut dish to be close at each gear be parallel though whole, but there is movement front and back, are that the engine spindle 51 of ining succession taking power belt 61 is the center of circle, the distance longitudinal projection that passes to the first tool rest through belt 61 is that radius moves, and belt 61 also has difference in height, be oblique, fortunately can also use.Can find out have multiple toothly because heighten the described sector gear 58g of gear from Figure 56, existing preferably 10 teeth, have 10 grades, for example, can cut height at 10-100mm and adjust; Or by conventional 25-85mm, point several shelves are preferably by customer requirement.Referring to Figure 25, the power of the part of mowing, from engine spindle 51, passes to the first tool rest through belt 61b, then passes to the second tool rest through Timing Belt 23, therefore be convenient to drive hay knife 60 to work; As improvement, referring to Figure 33 and Figure 65, described hay knife 60 is provided with two or more wind wings, twines grass in order to cut off, and is provided with multiple cutting edge 60a on described wind wing, and the angle on the two sides of described cutting edge is not right angle, is preferably less than 60 degree, or acute angle; Be further used as improvement, described hay knife 60 is provided with multiple hexagonal holes, or further improves, and described hay knife 60 is provided with multiple as honeycomb or as the convex-concave of wedge 29, is noise reduction therefore be beneficial to the audio frequency of the micro-air-flow of high speed that changes the cutter of flowing through.

The graphical designs of the mowing part of the described mowing-apparatus that has noise reduction and preferably method of thinking are significant contributions of the present invention.As previously mentioned, the one in front and one in back scheme of two cuttves of original sitting type mower, use be two-sided V-belt, also used three regulating wheels, because of before and after cutter has, strengthen before and after making to cut dish, cause complete machine to lengthen.Two cuttves of another kind of original sitting type mower, though be not tandem, because of two cuttves oppositely turn, use be more expensive double-sided synchronous belt, also handy two synchronous tensions are taken turns, this makes cost increasing.Can find with two cuttves, be one in front and one in back, do not make to cut dish front and back and strengthen, and oppositely do not turn, and double-sided synchronous belt that need not be more expensive, grass does not leak, and what way does the approach that cutter does not touch use? answer is yes.Using diagram optimum seeking method: two point widths of getting strip-shaped cutter 20 are diameter D, is that belt wheel center (63a, 63b) is apart from being A by the gyroaxis of two cuttves, draw 2 circles, referring to Figure 53, two justify crossing front parts represents with filling hachure, and width B is exactly the heavy swath B that grass does not leak; Justify taking A as diameter, angle of circumference perseverance is right angle again, hangs down mutually, and is synchronous rotation, therefore two two limits that cutter is angle of circumference can separately be drawn multiple angles of circumference and be come preferably because establishing two cuttves.There is formula: B=D-A.Referring again to Figure 54, variation A, first gets band wheelspan A=0.618D by optimum seeking method 0.618 method, mapping, then strengthen gradually A, be to the maximum and approach D; Shown in figure, be the heavy swath B of maximum and the minimum A in the time that cutter touches soon.The size that dish 58 is cut in A impact.Again by formula:

Getting designed ratios N=A/D, in general, is good at 74%-92%.

For example get 74%, the long D=530 of cutter, the cutter heart is apart from A=390; Swath F=D+A=530+390=920, somewhat few, it is good a little louder to wish; Heavy swath B=D-A=140, enough.

As another embodiment, get designed ratios N=A/D=92%, the long D=530 of cutter, the cutter heart is apart from A=490; The swath F=D+A=530+490=1020 of mower, a little bigger, good; Heavy swath B=D-A=40, also can use.

If get heavy swath B=D-A≤20, likely leak grass, because grass is that shake left and right, and cut dish and overwhelm by askew allowing, sometimes just have once in a while cut less than grass.When practical, more than cutting and week being preferably in 3mm with the gap of point of a knife in dish.

Because adopt PROE-WILDFIRE software, therefore variable is drawn easily, certainly also can use other software.

Because there be the forward engine with anechoic trap and the car cover that has noise reduction in the included vehicle frame top of the riding mower of noise reduction measure and hydraulic stepless speed change, as shown in Figure 23 and Figure 34, draw engine for seeing clearly to exempt to block to have saved again; The enlarged drawing of anechoic trap is as shown in Figure 67 and Figure 68; Anechoic trap provided by the invention, contains hush tube 47 and tank 42; The lower bend of described hush tube 47 immerses in described tank 42, therefore there is cooling effect.The effect of described tank is to kill two birds with one stone, except cooling, also with water for weight; Because it is located at mower front portion, therefore there is counterweight effect.The water of tank faces the used time and just adds, because this disregards hauled weight; The water adding does not add tankful, has had half just.The lower end of the lower bend of described hush tube 47 and silencer outlet are joined.The feature of described tank 42 is, its side is provided with through hole, to match with the lower bend of described hush tube 47; Its bottom is provided with dewatering outlet.Described hush tube 47 forms by multistage inner tube 47a and brace with containing the outer tube of multiple wedges 29 arrays of micropore.In outer tube, have inner tube, the feature of described inner tube 47a is to which is provided with cellular hexagon eyelet, or polygon eyelet, or oval and oval eyelet; And the interior length of tube of multistage is that length is different and alternate; For example have one section to be the longer inner tube of four/three-wavelength multiplying factor, adjacent is the inner tube of its quarter-wave multiplying factor only.The distribution of multiple eyelets that in addition, described inner tube 7a is provided with is not uniform but has density; The position that is positioned at 1/4th pipe ranges at the middle part on one section of pipe of four/three-wavelength multiplying factor is closeer eyelet, is the eyelet of dredging on the pipe of remaining part; And the feature of its eyelet is hexagon eyelet or many prismatics; The feature of the inner tube of the described quarter-wave multiplying factor with eyelet is that the distribution of the multiple eyelets which is provided with is not uniform but has density; The position that is positioned at 3/8ths pipe ranges at the middle part on this section of pipe is closeer eyelet, is the eyelet of dredging on the pipe of remaining part.Described eyelet is polygonal, preferably hexagonal; As improvement, or the feature of its eyelet is many prismatics, or six prismatics, or have the polygonal of a fabrication flange; Or the feature of its eyelet is the described wedge that has micropore 29, therefore there is quarter-wave effect and dilatational wave effect and honeycomb effect.On the face of described outer tube, be provided with many stamping projections, being multi-prism taper is that multiaspect is cone-shaped, and particularly hexagonal pyramid shape, is called wedge 29; The feature of described wedge is, its root from the punching press of metallic plate is hexagon, from root to top, dwindles, and roughly its breadth depth ratio is one to one, or to one to one five.And the top of the wedge of the each described hexagonal pyramid shape on the face of described hush tube is provided with micropore, and its approximate diameter is advisable at 0.1 to 0.5 millimeter.On the face of described inner tube 47a, as improvement, or its eyelet also can change and is made as many stamping projections, being multi-prism taper is that multiaspect is cone-shaped, and particularly hexagonal pyramid shape, also can be described as wedge, but its breadth depth ratio is One to naught point eight, or to one. four to one.The how stupefied structure of many wedge composition wedges, the hexagonal that its arrangement at each face is honeycomb is polygonal, or random, or oval, Long Circle, or irregular convex-concave shape; In hush tube or can partly be filled with the nonmetallic materials of metallic fiber or heatproof; Or the sound-absorbing material that can partly be filled with resistance to middle temperature is as sound-absorbing porous material, or flexible material and film material.Or attach, or directly mold pressing, or add azoic foaming agent bi-component in mould make outer hard in and solidify.Described porous material is as fiber-like, foam class, and particulate species, alone good, more or less mix application good.Also usable fibers class is as rock wool, or glass fiber, or particularly super glass wool of mineral wool; Or use foam class, by wanting fireproof in warmware place; Or by particulate species as expanded perlite, porous clay brick, and the fabric of heatproof, felt is filled or is attached; Therefore be beneficial to improved performance index, and make comprehensive composition reach the good object of noise reduction.Multiple material has complementary low-and high-frequency sound absorption usefulness.Many wedges, have added area of dissipation; Particularly many wedges that has micropore, not only have the micropore effect of noise reduction, and have the latent effectiveness of hypereccrisia gas-liquid.As extending, many wedges also can reverse-drawing outwardly to add area of dissipation.Between silencer and engine, also can assemble the pad of not only making heat insulating mattress but also making beam.Between the outlet of silencer and described hush tube 47, also can assemble the pad of not only making heat insulating mattress but also making beam.Anechoic trap provided by the invention, is provided with numerous large-area wedge regions, containing numerous wedges that has micropore, has wedge resistance to fall effect and micropore effect.The beneficial effect that anechoic trap provided by the invention causes is: increase the combination property of soundproof effect and lifting silencer as insertion loss, sound transmission loss, noise abatement amount and attenuation, and cooling.A kind of inventive concept is as hovered as ghost: if with thick soft foamed plastics, or as improvement, fully utilize above-mentioned various silencing vibration-damping materials and with numerous large-area wedge regions, be located at mowing table 58, referring to Figure 70, and mower many places are as headstock hood 41, referring to Figure 60; As vehicle body 50c, referring to Figure 61, the to the rear vehicle seat that has noise reduction of vehicle frame upper center, and car rear in addition has the receipts grass box of noise reduction, is expected to receive the effect of security protection and noise abatement.In addition, be saddle horse operator's personal protection, annex of the present invention is furnished with earplug, anti-sound cotton, earmuff and anti-sound head helmet.Also be provided with the artificial foot protection plate containing turning joint in both sides, mower middle part.The described artificial foot protection plate containing turning joint being provided with in both sides, mower middle part is made up of protective plate and turning joint; It is characterized in that described protective plate is the sound absorption material of selecting, and left, right each one; But in the time sometimes will laying side Lysimachia sikokiana plate on right side, just an on the left side is laid artificial foot protection plate; Described protective plate profile preferably foot-shape have a bigger waveform in two, therefore strengthened warning association and artistic image that foot is careful; Described protective plate preferably uses more soft but not too soft shore hardness at such as rubber of 65 to 95 materials, polyurethane or polyvinyl chloride are made main sheet material, and its usefulness is to discharge water while putting down work, for example, be placed on while cutting dish 18 both sides, the more difficult wound grass of adagio, and soft board is more convenient for casing.Described protective plate also can be used the material of hard.Described protection edges of boards are provided with mobilizable hinge, do not limit one or more or with flexible material, then are aided with stop before going too far determinate spacing, if can make described protective plate decontrol to work and turn be up convenient to case just passable.As extending or improving, described protective plate also can be made as dismountable, when work, puts, and while work, takes off.In order to prevent trouble before it happens, put prevention first, guarantee that the complete machine of a large amount of shipment all can detect by false pin.Described protective plate also can be used on other place of fuselage, and for example the top of two trailing wheels is protected.As another embodiment, also available acoustic material is made car load not to be open, but on have top, or totally-enclosed car type, shines in order to gear, or full sound insulation.Head fuselage everywhere, all available foamed materials, sound-absorbing porous material, as foam cement or foamed plastic, or flexible material and film material, or double-deck blowing part; Or attach, or directly mold pressing, or add azoic foaming agent bi-component in mould and solidify to form outer foaming in hard; Or double-deck various large of being blow molded into large-area honeycomb and wedge sample convex concave, as head and fuselage.To sum up, therefore there is the beneficial effect of various noise abatement measures: not only utilize the different characteristic impedance of sound-absorbing material, reduce reflected sound, and utilize aperture low frequency diffraction shadow zone principle, establish sound barrier and weaken high-frequency noise.Described earplug is many with pre-mould mode earplug, is molded as certain geometry with flexible plastic or soft rubber; Or use foamed plastics earplug; Therefore have certain sound insulation property and comfortableness.Again because described anti-sound cotton be with super glass wool through Chemical softnessprocess and making, the most handy 1-3 micron diameter be good; And make fritter taper, therefore be convenient to plug in one's ear; The sound insulation of anti-sound cotton is more effective than common cotton, and sound-insulation value improves along with the increase of noise frequency, thus more effective to isolated high-frequency noise, use anti-sound cotton, not only without prejudice to linguistic relationships, and speech articulation is increased.Described earmuff is the earflap 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 have security effect.

Also characteristic because of the to the rear vehicle seat that has noise reduction of described vehicle frame upper center again: vehicle seat is surrounded by thick noise reduction foamed material, removable before and after vehicle seat; Vehicle seat is provided with people to be connected while sitting down, when people leaves with regard to obstructed limit protection switch; Or non-contacting human inductor is sensor, therefore also there is protective effect.There is the receipts grass box 50 of noise reduction at described car rear, is provided with 2 hooks 17, it is characterized in that S shape, has on the hanger of pin therefore be convenient to hang over 2 of being located at after vehicle frame, and pin is to be stuck in actively in S shape, becomes reconciled and gets to fall grass therefore be convenient to artificial gyration.The foregoing one side Timing Belt that two cuttves are driven is in the same way found too tightly in workshop, and fortunately on production line, does not install; As korean pine, easily leapfrog and asynchronous once in a while again.As improvement, in order to make to drive in the same way good installation of one side Timing Belt 63 of two cuttves, referring to Figure 21, be equipped with regulating wheel 63c, described regulating wheel 63c contacts without the flank of tooth with one side Timing Belt 63, so described regulating wheel is anodontia circle wheel; Regulating wheel is contained on tensioning support 63d, tensioning support 63d actively taking the bolt 63e that fixes as balance pivot adjustable, therefore can and set up nut 63g and infer by the adjusting bolt 63f on the minor adjustment frame 63h fixing, thus facilitate installation, and eliminated asynchrony phenomenon.

As improvement, car load is made and is not open with acoustic material, but on have top, or totally-enclosed car type, or make large-scale integral car, can be beneficial to that gear shines or full sound insulation; Or with the splicing of several bulks.Head fuselage everywhere or whole or spell all right.Headstock hood 41 shown in Figure 60 and Figure 61 and vehicle body 50c, can whole or spell.For example, before and after vehicle body 50c can be divided into two major parts, can plug together and receive the Shang great Gai of grass box rear a bulk of dividing.Head fuselage everywhere or whole or spell all right anti-noise structure that also mainly refers to, be stretched as head fuselage and the ceding of Taiwan of honeycomb wedge convex concave as steel plate is molded, or iron plate attaches large of the honeycomb wedge convex concave of injection molded, join again described acoustic material as foamed material, sound-absorbing porous material, foam cement or foamed plastic, or flexible material and film material; Or attach, or directly mold pressing.Or add azoic foaming agent bi-component in mould, with form outer hard in foaming and solidify as the structure of portable refrigerator; Or double-deck various large blowing part that is blow molded into large-area honeycomb and wedge sample convex concave, as head and fuselage, then attach thick foamed plastic.To sum up, therefore there is the beneficial effect of various noise abatement measures: not only utilize the different characteristic impedance of sound-absorbing material, reduce reflected sound, and utilize aperture low frequency diffraction shadow zone principle, establish sound barrier and weaken high-frequency noise.The connecting place of the airstrainer 4 that has the headstock hood 1 of noise reduction and eliminate the noise has two car lights 3, should notice that sticky seam does not leak very much sound, more will note temperature rise; If with lamp be LCD luminous tube, temperature rise is out of question; Certainly, also can be with the lamp of other classes.

Science and improvement are constantly to improve with endless.When actual mowing, sometimes meet stone and hinder cutter; By the regulation of blade test, put in blade with steel pipe and cut district again, do not allow fracture, but flexible, the grass cutter with self-clutched blade that this inspires us to make improvements, and have the cutter of protection.First changed repeatedly cutter, then changed multiple with cutter from the relevant part of clutch.Object is that the conventional mowing-apparatus part used in order to overcome hay mower prior art is more, and rotary inertia is larger, and power hungry is more, and cutter is to be rigidly connected, and there is no the shortcoming of security protection.A kind of improvement of hay mower cutting mechanism was provided, and was the cutter of not wanting independent tool rest for hay mower, was called the hay mower hay knife without tool rest, and one can make part reduce, and cost reduces; Two can make weight saving, and consumed power reduces; Three can make it have the function of security protection.But, still there are tool rest and the accessory of the mower that several moneys have shaped, wish few change in the hope of applying, so there is kinds of schemes, there is the tool rest of several on-of pin formulas, also have the tool rest of the end-face friction of many distortion, the existing for example clutch-plate up and down of several end-face frictions.

Referring to Figure 28, it is the schematic diagram of the tool rest assembly of conventional hay mower; The tool rest assembly with on-of pin of described improved grass cutter with self-clutched blade, mainly by blade 60, tool rest 60a, power belt wheel 60d, and cutter on-of pin 60c, and elastic ring 60e forms, blade 60 is contained on tool rest 60a, tool rest 60a and power belt wheel 60d are contained on the engine spindle of cotter way, it is characterized in that: described tool rest 60a is provided with the pin-and-hole that can lay cutter on-of pin, referring to Figure 29; Put into cutter on-of pin 60c, referring to Figure 30 and Figure 31; Exterior flexible circle 60e, the head of described cutter on-of pin 60c is provided with inclined-plane, or 2 inclined-planes, referring to Figure 35 and Figure 36, or arcwall face, or involute face, therefore be convenient in the time that torsional moment is excessive, the radial component on inclined-plane exceedes the 68Nm of regulation, make it to get out of the way and shrink back; The afterbody of described cutter on-of pin 60c is provided with concave surface, therefore be convenient to the elastic ring that is installed; Described elastic ring 60e is annular closed-coil spring, referring to Figure 38; Certainly, described elastic ring can be used elastic tape; Or the afterbody of on-of pin is provided with stage clip or torsion spring.Because press careless mower, referring to Figure 27, its tool rest 60a2 and power belt wheel are overall aluminium castings, be contained on the engine spindle of cotter way, so pin-and-hole is located between belt wheel and tool rest, first put cutter on-of pin 60c, then put described elastic ring, described elastic ring can directly be put into elastic tape; The closed-coil spring or complete of annular, or also can use with the long closed-coil spring hook joint of stretched; As long as its string diameter and circle footpath are share, please note that material and thermal treatment have impact when string diameter is large and enclose footpath hour power is large, after primary election, then test, then fixed output quota.Described elastic tape for elastic ring, with solid, cross section is circular; Or with hollow, cross section is tubular; If the afterbody of on-of pin is provided with stage clip or torsion spring, the afterbody of its pin preferably bores an axial hole, and the degree of depth will have the half of pin total length, in order to the steel wire that inserts stage clip or torsion spring.The string diameter of described elastic ring is preferably justified; Certainly, also can use the spring of bandlet shape, but increase possibly part.

Self-clutched blade is while mowing for reality, meets stone by chance and can also allow and operate on and do not hinder cutter, and for the blade test by a kind of regulation, put in blade with steel pipe and cut district, do not allow fracture, but flexible, so made improved grass cutter with self-clutched blade, and had the multiple cutter of protection.First changed repeatedly cutter, then changed multiple with cutter from the relevant part of clutch; Object is that the conventional mowing-apparatus part used in order to overcome hay mower prior art is more, and rotary inertia is larger, and power hungry is more, and cutter is to be rigidly connected, and there is no the shortcoming of security protection; The special improvement that a few money hay mower cutting mechanisms are provided is again that for part is reduced, cost reduces for the tool rest of the end-face friction of several distortion of hay mower; Also, in order to make weight saving, consumed power reduces; Make it have the function of security protection; Also for few change; in the hope of can be applicable to tool rest and the accessory of the mower that several moneys have shaped; several friction plates of the main tool rest that improves the end-face friction that is distortion; also do not limit illustrated, therefore do not departing from the change of doing under the precondition of claim flesh and blood and still belonging to the rights protection scope of this patent.

Please refer to Figure 39, there is the schematic perspective view that end clutch tool rest is housed for mower of cutter clutch, and Figure 44, it is the sectional arrangement drawing that end clutch tool rest is housed for mower that has cutter clutch, there is mower for the tool rest assembly that end clutch be housed of cutter from clutch, mainly by end clutch tool rest 60a3, tool rest lower sheeting 60b3, clutch-plate 60k under tool rest, clutch-plate 60m on tool rest, and cushion block in cutter 60h and tool rest, and unillustrated line shaft and cutter fastening bolt form, it is characterized in that: the described tool rest that has end clutch, cushion block in in-built tool rest, refill on line shaft, end clutch tool rest 60a3 is housed from top to bottom successively, clutch-plate 60m on tool rest, cutter 60h or other cutter, clutch-plate 60k under tool rest, tool rest lower sheeting 60b3, cutter fastening bolt, referring to Figure 41, the end face of the described tool rest 60a3 that has end clutch, be provided with groove, the projection that itself and tool rest lower sheeting 60b3 are provided with, while matching, the root of projection is larger, in any case cutter is clipped in the middle and hold again tight, have end clutch the large plane of tool rest and the large plane of tool rest lower sheeting always gapped, at gap location, clutch-plate 60k under clutch-plate 60m and tool rest is installed on suitable tool rest again, in the time of usual use, after installing, its frictional force of rubbing enough makes swivel moving, and in the time extremely touching stone or steel pipe, under upper clutch-plate and tool rest, the frictional force of clutch-plate is not enough, cutter is skidded, and play cutter from clutch action.In order to compensate contingent manufacturing tolerance and assembling form and position tolerance, not only the material of clutch-plate under upper clutch-plate and tool rest is selected softlyer, without steel, and with plastics, the most handy PP, polypropylene, or PU, polyurethane, also can use other softwood certainly, for example fabric; And clutch-plate under upper clutch-plate and tool rest is carried out to various distortion improvement, in order to there being the assembling frictional resistance being applicable to from clutch; For example, referring to Figure 45 and Figure 46, be the clutch-plate 60k under multiple tooth tool rest that has that has end clutch tool rest for the mower of cutter clutch, minimum 2 teeth, maximum 100 teeth, multiple tooth or press circumference uniform distribution and arrange, or press multiple tooth parallel composition convex concave; The described best indention of multiple tooth per tooth, that is to say, the per tooth preferably left side is right angle, and the right is the casting lug thereon at obtuse angle, to be applicable to the characteristic of the single direction rotation of hay knife; Again for example, referring to Figure 47, the clutch-plate 60M1 on multiple tooth tool rest that has that holds clutch tool rest for mower that has cutter clutch, the feature that it is multiple tooth, the similar described clutch-plate 60k under multiple tooth tool rest that has, and be also minimum 2 teeth, maximum 100 teeth, the multiple tooth circumference uniform distribution of pressing is arranged, or by multiple tooth parallel composition convex concave; The described best indention of multiple tooth per tooth, that is to say, the per tooth preferably left side is right angle, and the right is the casting lug thereon at obtuse angle, therefore be beneficial to the characteristic of the single direction rotation that is applicable to hay knife; But add in addition, that is exactly described multiple tooth, not one side still, and or establish two-sided; This or establish two-sided following and all upper clutch-plates that are also applicable to.For example,, as improvement, referring to Figure 48, be the schematic diagram that has the tool rest clutch-plate 60m2 that has many convex-concaves of the mower end clutch tool rest of cutter clutch, it is provided with large small end, or has multiple convex-concaves of the different depths, its convex-concave or circle, or side, the different depths also had; Being re-used as improvement, referring to Figure 49, is the tool rest clutch-plate 60m3 that has many setback that has the mower end clutch tool rest of cutter clutch; Referring to Figure 50, be multistage flail knife, at least 3 sections, every limit, every section of movable riveted joint or screw loose joint, the first paragraph 60n1 that connects tool rest establishes concave arc, and it is gapped, therefore be convenient to fine motion; The usefulness of flail knife is to protect from clutch.Cast a brick to attract jade, mention flail knife, not only make more piece, and further make half soft, as chain, or complete soft formula as nylon rope, steel wire rope; Or its combination, nylon encases steel wire rope, or nylon rope twists steel wire rope.As improvement, described chain is provided with blade; As Figure 41 and gapped cooperation as shown in figure 42 make the tool rest of cutter from clutch, also can change the gap of multiple limited location into, for example, make a call to two counterbore 60z at end surface of knife holder, to replace groove; And establish two banking pin 60Q at the end face of tool rest lower sheeting, or pin, or screw, the effective length of banking pin is slightly larger than the degree of depth of counterbore, to replace projection, please refer to Figure 63.Described banking pin 60Q, adopts screw, and also having a benefit is can finely tune spacing gap, is easy to control degree of tightness, but slower in enormous quantities time.Be not difficult thus to guess; it is a lot of from the concrete refined structure of clutch that end clutch friction makes cutter; to one skilled in the art; obviously also has the change of many equivalent technologies; but do not departing under the precondition of claim flesh and blood, the change of doing still belongs to the rights protection scope of this patent.

Claims (15)

1. the mower of improved self-clutched blade, is characterized in that: include the on-of pin formula tool rest assembly of elastic ring, and have the end face clutch tool rest assembly of cutter from clutch, the on-of pin formula tool rest assembly of described flexible circle, mainly by blade (60), tool rest (60a), power belt wheel (60d) and cutter on-of pin (60c), and elastic ring (60e) forms, blade (60) is contained on tool rest (60a), tool rest (60a) and power belt wheel (60d) are contained on the engine spindle of cotter way, described tool rest (60a) is provided with the pin-and-hole that can lay cutter on-of pin, inside put into cutter on-of pin (60c), the exterior flexible circle of described pin (60e), and described there is the end face clutch tool rest assembly of cutter from clutch, mainly by end clutch tool rest (60a3), tool rest lower sheeting (60b3), clutch-plate under tool rest (60k), clutch-plate on tool rest (60m), and cushion block in cutter (60h) and tool rest, and line shaft and cutter fastening bolt form, described end clutch tool rest, cushion block in in-built tool rest, refill on line shaft, dress is held clutch tool rest (60a3) successively from top to bottom, clutch-plate on tool rest (60m), cutter (60h), clutch-plate under tool rest (60k), tool rest lower sheeting (60b3), cutter fastening bolt, the end face of described end clutch tool rest (60a3), be provided with groove, when the projection that itself and tool rest lower sheeting (60b3) are provided with matches, the root of projection is larger, in any case cutter be clipped in the middle and hold tightly again, the large plane of end clutch tool rest and the large plane of tool rest lower sheeting are always gapped, or establish counterbore (60z) to replace groove at the end face of tool rest, and establish banking pin (60q) to replace projection at tool rest lower sheeting, arrange more than two pairs, and the effective length of banking pin is greater than the degree of depth of counterbore, then at gap location, clutch-plate (60k) under clutch-plate (60m) and tool rest is installed on tool rest.

2. the mower of improved self-clutched blade according to claim 1, the on-of pin formula tool rest assembly of described flexible circle contains cutter on-of pin (60c), it is characterized in that: the head of described cutter on-of pin (60c) is provided with inclined-plane.

3. the mower of improved self-clutched blade according to claim 2, is characterized in that: described inclined-plane or 2 inclined-planes, or arcwall face, or involute face.

4. the mower of improved self-clutched blade according to claim 1, the on-of pin formula tool rest assembly of described flexible circle contains cutter on-of pin (60c), it is characterized in that: the afterbody of described cutter on-of pin (60c) is provided with concave surface.

5. the mower of improved self-clutched blade according to claim 1, the on-of pin formula tool rest assembly of described flexible circle contains described elastic ring (60e), it is characterized in that: described elastic ring is annular closed-coil spring.

6. the mower of improved self-clutched blade according to claim 1, the on-of pin formula tool rest assembly of described flexible circle contains described elastic ring (60e), it is characterized in that: described elastic ring is elastic tape, its solid cross section is circular; Or with hollow, cross section is tubular.

7. the mower of improved self-clutched blade according to claim 1, the on-of pin formula tool rest assembly of described flexible circle contains cutter on-of pin (60c), it is characterized in that: the afterbody of described cutter on-of pin (60c) is provided with stage clip or torsion spring; The afterbody of on-of pin bores an axial hole, and the degree of depth is the half of pin total length; The string diameter of described elastic ring is round; Also use the spring of bandlet shape.

8. the mower of improved self-clutched blade according to claim 1, the on-of pin formula tool rest assembly of described flexible circle contains tool rest (60a2), it is characterized in that: described tool rest and power belt wheel are overall aluminium castings, so pin-and-hole is located between belt wheel and tool rest, put again cutter on-of pin (60c), put described elastic ring, described elastic ring can directly be put into elastic tape again; The closed-coil spring of annular or complete, or the closed-coil spring hook joint of growing with stretched; The afterbody of on-of pin bores an axial hole, and the degree of depth is the half of pin total length, and inserts the steel wire of stage clip or torsion spring; The string diameter of described elastic ring is round; Also use the spring of bandlet shape.

9. the mower of improved self-clutched blade according to claim 1, the described cutter that has contains the banking pin at tool rest lower sheeting from the end face clutch tool rest assembly of clutch, and insert the counterbore (60z) of the end face of tool rest, it is characterized in that: described banking pin is pin, and be two.

10. the mower of improved self-clutched blade according to claim 1, the described cutter that has contains the banking pin at tool rest lower sheeting from the end face clutch tool rest assembly of clutch, and insert the counterbore (60z) of the end face of tool rest, it is characterized in that: described banking pin is screw, and be two.

The mower of 11. improved self-clutched blades according to claim 1, described have cutter to contain on tool rest clutch-plate under clutch-plate and tool rest from the end face clutch tool rest assembly of clutch, it is characterized in that: the material plastics of clutch-plate under clutch-plate and tool rest on described tool rest.

The mower of 12. improved self-clutched blades according to claim 1, described have cutter to contain on tool rest clutch-plate under clutch-plate and tool rest from the end face clutch tool rest assembly of clutch, it is characterized in that: the material fabric of clutch-plate under clutch-plate and tool rest on described tool rest, or other material.

The mower of 13. improved self-clutched blades according to claim 1, described have cutter to contain on tool rest clutch-plate under clutch-plate and tool rest from the end face clutch tool rest assembly of clutch, it is characterized in that: on described tool rest, under clutch-plate and tool rest, clutch-plate is provided with minimum 2 teeth, maximum 100 teeth multiple tooth, itself or press circumference uniform distribution and arrange, or by multiple tooth parallel composition convex concave; Described multiple tooth per tooth indention, that is to say, per tooth is that the left side is right angle, and the right is the casting lug thereon at obtuse angle; Described is multiple tooth, or one side, or establishes two-sided.

The mower of 14. improved self-clutched blades according to claim 1, described have cutter to contain on tool rest clutch-plate under clutch-plate and tool rest from the end face clutch tool rest assembly of clutch, it is characterized in that: on described tool rest, under clutch-plate and tool rest, clutch-plate is provided with large small end, or there are multiple convex-concaves of the different depths, its convex-concave or circle, or side, also there are the different depths; Described convex-concave, or one side, or establish two-sided.

The mower of 15. improved self-clutched blades according to claim 1, described have cutter to contain on tool rest clutch-plate under clutch-plate and tool rest from the end face clutch tool rest assembly of clutch, it is characterized in that: on described tool rest, under clutch-plate and tool rest, clutch-plate is provided with many setback; Described setback, or one side, or establish two-sided.