CN100497051C

CN100497051C - Mud scraper and agricultural machine

Info

Publication number: CN100497051C
Application number: CNB2006100003965A
Authority: CN
Inventors: 中岛幸一
Original assignee: Sumitomo Rubber Industries Ltd
Current assignee: Sumitomo Rubber Industries Ltd
Priority date: 2005-01-11
Filing date: 2006-01-10
Publication date: 2009-06-10
Anticipated expiration: 2026-01-10
Also published as: CN1803498A

Abstract

A mud scraping device (1) includes a mud discharging member (6) having a mud scraping member (10) for scraping off mud stuck to a wheel (102), and a support member (5) for supporting the mud discharging member (6). The mud discharging member (6) includes an elastic member (11) for repeating a flexure and a shape restoration with a rotation of the wheel (102). The elastic member (11) is constituted by a coiled spring. The mud scraping device (1) includes a positioning and adjusting mechanism capable of adjusting a position of the mud scraping member (10). The mud discharging member (6) has the elastic member (11), and the mud scraping member (10) attached to an end of the elastic member (11). The elastic member may be set to be the mud scraping member. The elastic member may be extended in an axial direction from the support member side toward an equator plane of the wheel. The mud scraping device (1) can be attached to all agricultural machines.

Description

Mud-scraping apparatus and field machine

The present invention requires the preceence based on following patent application: the 2005-4257 patent application that on January 11st, 2005 proposed in Japan, the 2005-176126 patent application that on June 16th, 2005 proposed in Japan, the 2005-191732 patent application that on June 30th, 2005 proposed in Japan, the 2005-216787 patent application that on July 27th, 2005 proposed in Japan, and the 2005-310246 patent application that proposes in Japan on October 25th, 2005, its full content at this by with reference to introducing.

Technical field

The present invention relates to a kind of mud-scraping apparatus and a kind of field machine.

Background technology

In paddy field cultivation machinery, for guaranteeing the propulsion quality stably on soft terrains such as for example rice terrace, use the wheel that comprises resilient ring parts, these resilient ring parts form by the elastomeric material coated with for example elastomeric material etc. on annular rim.On the outer surface of resilient ring parts and side surface, along the wheel circumferential arrangement protrusion is arranged at certain intervals.This vehicle wheel structure becomes to comprise protrusion, has produced move forward and backward motion required tractive force and buoyancy thus.

Protrusion comprise to the significantly outstanding blade-like protrusion of side portion of vehicle, side direction overhang less than the triangle protrusion of blade-like protrusion, be arranged on trapezoidal protrusion on the wheel equatorial plane etc.

When soft terrain was crossed in the traveling of paddy field cultivation machinery, earth just was attached on the wheel side surface.Specifically, earth often is easy to be attached on the blade-like protrusion.Because wheel revolutions, earth is upwards risen under the state that is attached on the wheel.In some cases, the earth that upwards rises falls because of deadweight.Because the earth, the mud that fall, the seedling of just having planted can fracture and lodge.Earth attached to the state on the wheel under paddy field cultivation machinery when travelling the highway of paving, highway can be polluted.When earth is being attached under the state on the wheel clay and drying, when carwash, be difficult to remove earth.In addition, there is same problem in other field machines except paddy field cultivation machinery.

Japan's publication communique has disclosed a kind of Agricultural vehicle wheel 2002-347404 number, has wherein considered the traction equilibrium of forces of earth barrier propterty and left and right sides blade-like protrusion.In wheel, left and right sides blade-like protrusion overhang in the axial direction is equal to each other or about equally.Protrusion with large and small elastic deformation amount or elastic deflection amount circumferentially is being provided with about alternatively.Elastic deformation amount and elastic deflection amount are controlled by the circumferential thickness of protrusion.This Agricultural vehicle wheel has the elastic deformation amount that relies on left and right sides blade-like protrusion or the difference between the elastic deflection amount and the structure of the earth that shakes.

Japan's publication communique has disclosed for 2001-80473 number a kind ofly wipes mud-scraping apparatus attached to the earth on the wheel off by the rotation that utilizes wheel.This device comprises that can center on the wheel big frame member of each several part all around.The leading portion of framing member and trailing portion are wiped off and are attached to the lip-deep earth of wheel tyre surface.Blade that is formed by elastomeric material is fixed to side surface inboard of this framing member and wipes off and is attached to the lip-deep earth of wheel side.

Be described in Agricultural vehicle wheel in Japanese publication communique 2002-347404 number and have the elastic deformation amount that can rely on left and right sides blade-like protrusion or the difference between the elastic deflection amount and the structure of the earth that shakes.The problem that the structure of this protrusion exists is that the effect of removing earth is unreliable.In the wheel that comprises triangle protrusion (its to the overhang of wheel sides less than the blade-like protrusion) and trapezoidal protrusion (it is outstanding very little), between left and right sides protrusion elastic deformation amount or elastic deflection amount, do not produce difference.Therefore, can not utilize this difference to remove earth.Thereby, in this wheel, can not solve the above-mentioned problem that produces of adhering to because of earth.

Be described in the framing member that mud-scraping apparatus provided in Japanese publication communique 2001-80473 number greater than the wheel external diameter.For this reason, the structure of this device is very big.Have in the paddy field cultivation machinery of this device in attaching, the weight of vehicle increases.Thus, worsened rideability on soft terrains such as for example rice field.

In the device in being described in Japanese publication communique 2001-80473 number, the earth that scrapes is attached on the front and rear part of framing member and is deposited in the there.By adhering to and accumulation has formed the earth piece.The structure of framing member is corresponding with the external diameter of wheel.Therefore, the framing member attaching becomes the height of its height and axletree to equate.For this reason, the earth piece is in the position formation contour with axletree.In some cases, the earth piece falls from this height and position.Like this, the earth that falls has a potential energy.Thereby, impel the seedling of being planted to fracture and lodge.This device has around the wheel framing member of the each several part structure of wiping earth off all around.Therefore, there is the problem of not wiping off from the wheel side surface attached to axially inboard earth.

Summary of the invention

An object of the present invention is to provide a kind of mud-scraping apparatus and a kind of field machine that is attached to the earth on the wheel and does not damage the rideability of vehicle on soft terrain that be used to wipe off.

Mud-scraping apparatus according to the present invention comprises spoil disposal parts and a support component that is used to support these spoil disposal parts, described spoil disposal parts have one be used to wipe off the earth that is attached on the wheel scrape the mud parts.These spoil disposal parts comprise that one is used to follow wheel revolutions and repeats the elastomeric element that deflection and shape are recovered.

When elastomeric element repeated deflection and shape recovery, spoil disposal parts butt wheel and is not hindered wheel revolutions.The spoil disposal parts repeatedly are out of shape.Therefore, the durability for distortion is very important.Structure by such deflection that utilizes elastomeric element can strengthen the durability to repeated deformation.Utilizing the structure of the deflection of elastomeric element is useful for simplified structure, and further can help cost-cutting.Utilize the structure of the deflection of elastomeric element can make the work of changing elastomeric element and maintenance equipment be easy to realize.

In mud-scraping apparatus, preferred resilient members is made of coil spring.By so crooked helical spring structure, can further strengthen durability to repeated deformation.

Preferred mud-scraping apparatus comprises that can be adjusted a location and a regulating mechanism of scraping the mud component locations.

In mud-scraping apparatus, preferably elastomeric element is set to scrape the mud parts.

In mud-scraping apparatus, preferred resilient members is extended towards the wheel equatorial plane from the support component side vertically.

In mud-scraping apparatus, what preferred spoil disposal parts comprised elastomeric element and were attached to this elastomeric element one end scrapes the mud parts.

Field machine according to the present invention comprises a wheel and a mud-scraping apparatus, and mud-scraping apparatus comprises spoil disposal parts and a support component that is used to support the spoil disposal parts, these spoil disposal parts have one be used to wipe off the earth that is attached on the wheel scrape the mud parts.These spoil disposal parts comprise that one is used to follow wheel revolutions and repeats the elastomeric element that deflection and shape are recovered.

In field machine, preferred resilient members is extended towards the wheel equatorial plane from the support component side vertically, and wheel comprises a spoke.This spoke is configured to make deflection and the shape recovery along with the rotation of this wheel of this elastomeric element.

The device that is used to wipe off the earth on the field machine wheel according to the present invention comprises: the outer peripheral portion of a support component, this support component rotary area of the wheel with side direction protrusion except that contact area to being arranged on this field machine from the body of field machine extends; With spoil disposal parts, these spoil disposal parts are outstanding to the rotary area of side direction protrusion from support component in wheel revolutions.The spoil disposal parts have one and scrape mud parts and an elastomeric element, this is scraped the mud parts and is used for the rotation leading surface of butt side direction protrusion to wipe earth off, and this elastomeric element is used for keeping the butt state of mud parts on the side direction protrusion of scraping along with the rotation of side direction protrusion, and have along the rotation of side direction protrusion by after return to elasticity on the direction of initial position.

By being attached to this mud-scraping apparatus on the field machine and the spoil disposal parts are set to can wipe the earth that is attached on the side direction protrusion reliably off on the side direction protrusion of the wheel that butt rotates because of travelling.

In addition, scraping the mud parts supports by elastomeric element.Therefore, the vertical vibrating operation that exist to repeat in this operation, is scraped the mud parts and is connected to the side direction protrusion and returns to initial position (almost horizontal state) subsequently, and the next side direction protrusion of butt once more.Therefore, for mud-scraping apparatus itself, wherein the earth stick on top also can be by vibration with its phenomenon of shaking off at once even can produce.Thereby earth can not piled up.In other words, can stop the earth that adheres to form a megalump.

Following mode is suitable: support component be provided with can wheel adjust on radially the spoil disposal component locations the approximated position setting device, can a arrangement for adjusting height apart from the short transverse adjusted spoil disposal component locations of ground plane, can be when axletree adjusts upward the horizontal position setting device of spoil disposal component locations and can regulate the scraping the mud parts and be connected on the side direction protrusion of spoil disposal parts the angle regulator of butt angle.By approximated position setting device, arrangement for adjusting height, horizontal position setting device, angle regulator etc. are provided, to having dissimilar and wheel or various field machine size have commonality.

The mud parts of scraping of preferred spoil disposal parts have an end portion, and on the direction of the rotation leading surface of slip butt side direction protrusion, this end portion forms round section.Thereby, can be implemented in smoothly on the side direction protrusion butt and with its moving contact, and stoped on side direction protrusion or analogue and produced scratch.The scraping the mud parts and can also have such end portion of spoil disposal parts, the angle tilt of this end portion to parallel from the angle of inclination of corresponding wheel side protrusion of surface with the rotation leading surface of side direction protrusion.Thereby, wipe the function of earth off and prevent that the function that produces scratch on the side direction protrusion from can further strengthen.

The mud parts of scraping of preferred spoil disposal parts form L shaped hook-shaped or convex curve shape with following structure, promptly, this structure makes can the angle near the right angle impact the rotation leading surface of side direction protrusion, and on the side direction protrusion that can when the wheel contrarotation, not be hooked together.Scrape the mud performance by using these shapes, can strengthening.In addition, when the wheel contrarotation, can stop on the side direction protrusion that is hooked together.This is favourable for the breakage that prevents side direction protrusion and mud-scraping apparatus.The spoil disposal parts to scrape that the mud parts form with following structure be suitable, that is, the lateral edge portions butt of scraping the mud parts of steered wheel side surface or near the side surface of this wheel.

Thus, can wipe off reliably and be attached to the lip-deep earth of wheel side and be attached to earth on the side direction protrusion.The spoil disposal parts comprise scrapes the mud parts and elastomeric element is suitable, wherein scrapes mud parts and elastomeric element and is formed and be arranged to by parts independently and freely be connected each other and separate.Thus, can only change and scrape mud parts or elastomeric element, thereby can obtain the reduction of operating cost etc.In addition, the advantage that exists dissimilar elastomeric elements can suitably try out and select according to the size of elastic force.

The spoil disposal parts can be provided with a connecting panel scraping between mud parts and the elastomeric element, and a basic bar can be set in the bottom of elastomeric element.In the case, preferably, scrape mud parts and connecting panel, connecting panel and elastomeric element and elastomeric element and basic bar should be fixed by securing device respectively.In addition, suitable is scrape the side locations of mud parts and can adjust based on connecting panel, and the gap of scraping between mud parts and the wheel can be adjusted according to the wheel width.

The mud-scraping apparatus that the present invention is used for field machine comprise one to be attached to that retaining part on the body, one are attached on the retaining part and the stay that extends on the length direction of body and one be attached on the stay and extend on the body length direction along the wheel side surface scrape the mud parts.Retaining part comprises a cylinder, a damper element and a connecting element that is contained in the cylinder.Stay comprises an elastomeric element, the deflection and recover shape when removing power when stressed of this elastomeric element.Elastomeric element have one be contained in the cylinder and via damper element by means of the fastening part of connecting element, thereby this elastomeric element is fixed on the cylinder.

Field machine according to the present invention comprises body, wheel and mud-scraping apparatus.Wheel comprises front-wheel and trailing wheel, and wherein front-wheel only has block protrusion on its outer surface, and trailing wheel has the blade-like protrusion on its outer surface.Mud-scraping apparatus comprise one to be attached to that retaining part on the body, one are attached on the retaining part and the stay that extends on the length direction of body and one be attached on the stay and extend on the body length direction along the wheel side surface scrape the mud parts.Stay comprises an elastomeric element, the deflection and recover shape when removing power when stressed of this elastomeric element.

In this field machine, preferred retaining part comprises a cylinder, a damper element and a connecting element that is contained in the cylinder.Elastomeric element have be contained in the cylinder and via damper element with the fastening part of connecting element, thereby elastomeric element is fixed on the cylinder.

Field machine according to the present invention comprises body, wheel and mud-scraping apparatus.Wheel comprises front-wheel and trailing wheel, and wherein front-wheel only has block protrusion on its outer surface.Mud-scraping apparatus comprise one to be attached to that retaining part on the body, one are attached on the retaining part and the stay that extends on the length direction of body and one be attached on the stay and extend on the body length direction along the wheel side surface scrape the mud parts.Stay comprises an elastomeric element, the deflection and recover shape when removing power when stressed of this elastomeric element.

In this field machine, preferred retaining part comprises a cylinder, a damper element and a connecting element that is contained in the cylinder.Elastomeric element have one be contained in the cylinder and via damper element with the fastening part of connecting element, thereby elastomeric element is fixed on the cylinder.

Mud-scraping apparatus according to the present invention comprises a support component and spoil disposal parts.Support component comprise a first arm that extends along one of them side surface of wheel, one along axletree to second arm that extends from the first arm and the 3rd arm that extends along wheel opposite side surface from second arm.The spoil disposal parts have one and first scrape mud parts and one and second scrape the mud parts from the 3rd arm side towards what the equatorial plane extended vertically towards what the wheel equatorial plane extended from the first arm side vertically.

In mud-scraping apparatus, preferred first scrapes mud parts and second scrapes the deflection when the power that applies along the wheel revolutions direction of mud parts, and its shape is recovered shape when this power removes.

In mud-scraping apparatus, preferred first scrapes mud parts and second scrapes the mud parts and is made of a coil spring.

Preferred mud-scraping apparatus comprises that can regulate first for one scrapes location and the regulating mechanism that mud parts and second are scraped the mud position component.

Field machine according to the present invention comprises wheel and mud-scraping apparatus.Mud-scraping apparatus comprises a support component and spoil disposal parts.Support component comprise a first arm that extends along one of them side surface of wheel, one along axletree to second arm that extends from the first arm and the 3rd arm that extends along wheel opposite side surface from second arm.The spoil disposal parts have one and first scrape mud parts and one and second scrape the mud parts from the 3rd arm side towards what the equatorial plane extended vertically towards what the wheel equatorial plane extended from the first arm side vertically.

In this field machine, preferred wheel comprises a spoke.This spoke is configured to by the rotation of wheel and by scraping the mud parts and second part of scraping between the mud parts first.

The mud-scraping apparatus that the present invention is used for field machine comprise one to be fixed to that retaining part on the body and one extends along a side surface of wheel from retaining part on the body length direction scrape the mud parts.This is scraped the mud parts and directly is fixed on this retaining part.

In this mud-scraping apparatus, preferably scrape the mud parts and have an end side that is provided with the elastomeric element that extends vertically.

Field machine according to the present invention comprises body, wheel and will be attached to mud-scraping apparatus on the wheel.Comprise a protrusion on the outer surface of wheel.This protrusion only is made of block protrusion.Mud-scraping apparatus comprise one to be fixed to that retaining part on the body and one extends along a side surface of wheel from retaining part on the body length direction scrape the mud parts.This is scraped the mud parts and directly is fixed on this retaining part.

In this field machine, preferably scrape the mud parts and have an end side that is provided with the elastomeric element that extends vertically.

According to the present invention, can wipe the rideability that is attached to the earth on the wheel and can not damages vehicle reliably off.

Description of drawings

Fig. 1 shows the lateral plan according to the mud-scraping apparatus of an embodiment of the invention;

Fig. 2 is the view of observing along A-A line direction among Fig. 1;

Fig. 3 is the view of observing along B-B line direction among Fig. 2;

Fig. 4 is the view that is used for illustrating corresponding to the elasticity stay motion partly of Fig. 3;

Fig. 5 is the view of observing along C-C line direction among Fig. 1;

Fig. 6 is the explanation view (corresponding to Fig. 2) that running condition is shown;

Fig. 7 is the explanation view (corresponding to Fig. 2) that running condition is shown;

Fig. 8 is the lateral plan that the attaching example of a field machine is shown;

Fig. 9 is the lateral plan that a variation of spoil disposal parts (flight portion) is shown;

Figure 10 is the explanation view that traditional problem is shown;

Figure 11 is the lateral plan that illustrates according to the field machine of an embodiment of the invention;

Figure 12 is the planar view that the part of the mud-scraping apparatus in the field machine that is arranged on Figure 11 is shown.

Figure 13 is the lateral plan that illustrates according to the part of the field machine of another embodiment of the present invention;

Figure 14 is the lateral plan that illustrates according to the field machine of another embodiment of the invention;

Figure 15 is the lateral plan that the mud-scraping apparatus in the field machine that is arranged on Figure 14 is shown, and wherein a part is taken away;

Figure 16 is the planar view that mud-scraping apparatus among Figure 15 is shown;

Figure 17 is the section drawing of getting along D-D line among Figure 15;

Figure 18 is the lateral plan that illustrates according to the part of the field machine of another embodiment of the invention;

Figure 19 is the lateral plan that illustrates according to the field machine of an embodiment of the invention;

Figure 20 illustrates the part of the mud-scraping apparatus on the field machine that is attached among Figure 19 and the local amplification view of a trailing wheel;

Figure 21 is the section drawing of getting along E-E line among Figure 20, shows the cover part butt and first and scrape the state that mud parts and second are scraped the mud parts;

Figure 22 illustrates the cover part butt first and scrape mud parts and second and scrape mud parts and first and scrape the section drawing that mud parts and second are scraped the state of mud parts deflection;

Figure 23 is the local amplification view that the part of the variation that is shown in the mud-scraping apparatus among Figure 20 is shown;

Figure 24 is the section drawing of getting along G-G line among Figure 23, shows the coating member butt and the state of scraping the mud parts;

Figure 25 illustrates to cover butt and and scrape the section drawing that the mud parts make the state of scraping the deflection of mud parts;

Figure 26 is the lateral plan that illustrates according to the part of the field machine of another embodiment;

Figure 27 illustrates the planar view that is arranged on according to the part of the mud-scraping apparatus in the field machine of another embodiment;

Figure 28 illustrates the planar view that is arranged on according to the part of the mud-scraping apparatus in the field machine of another embodiment;

Figure 29 is the lateral plan that illustrates according to the field machine of an embodiment of the invention;

Figure 30 is the planar view that the part of the mud-scraping apparatus in the field machine that is arranged on Figure 29 is shown;

Figure 31 is the lateral plan that illustrates according to the part of the field machine of another embodiment of the present invention; And

Figure 32 is the planar view that the part of the mud-scraping apparatus among Figure 31 is shown.

The specific embodiment

Describe the present invention in detail based on preferred implementation with reference to the accompanying drawings.

Describe according to the embodiment of the present invention below with reference to the accompanying drawings.

As shown in Figure 8, mud-scraping apparatus 1 is worked on a wheel 102, and this wheel 102 is for being arranged on the trailing wheel (drive wheel) in the field machine 2 such as paddy field cultivation machinery for example.As can be seen clearly from figure 1, in wheel 102, three spokes 105 are strengthened by a central part stiffening plate 106 and around axletree hub 110 are installed extending radially out, and resilient ring parts 111 are by each end support of this spoke 105, and wherein resilient ring parts 111 have and imbed such as the metal ring core in the rubber elastomeric material (elastomeric material through sulfuration and attached to core around).

Side direction protrusion 100 along the circumferential direction is provided at predetermined intervals to each other on resilient ring parts 111 outer peripheral portions.Side direction protrusion 100 is so-called " blade-like protrusions ", and its illusion line that radially extends from the axle center of hub 110 relatively is inclined, and both sides (outside) is outstanding to the left and right.Side direction protrusion 100 on the both side surface of resilient ring parts 111 from being provided with from interior Zhou Duanxiang outer circumference end.The direction of tilt of side direction protrusion 100 is provided with as follows: the radial inner end of side direction protrusion 100 its radial outer end relatively is arranged on the front side of hand of rotation (in travelling forward).Thereby, in wheel 102 rotary courses, sink in the face of the surface of earth as rotation leading surface 112.

In addition, be arranged side by side a plurality of (being exemplified as three among the figure) trapezoidal protrusion 113 along the circumferencial direction of resilient ring parts 111 on the outer circumferential edges of resilient ring parts 111, in the wheel lateral center place of side direction protrusion 100, between side direction protrusion 100.Mud-scraping apparatus 1 according to the present invention has a support component 5 and spoil disposal parts 6.Support component 5 is to be used for mud-scraping apparatus 1 is attached to part on the body of field machine 2.Preferably according to the suitable concrete structure that adopts at the attachment positions and the attaching part of this field machine 2 such as the vehicle shape of field machine 2, the position of wheel 102.In the example shown in the figure, spoil disposal parts 6 are cantilever designs, and it extends back with the state of the approximate horizontal bottom from field machine 2, and are on the position of wheel 102 rear sides in the periphery of wheel 102 rotary areas.Spoil disposal parts 6 are wiped the earth that is attached on the wheel 102 off.

Side direction protrusion 100 and wheel 102 rotate together.Spoil disposal parts 6 are arranged to from support component 5 towards will be with the outstanding state of rotary area of the side direction protrusion 100 of wheel 102 rotation.In the present embodiment, side direction protrusion 100 is arranged in the left and right sides portion of wheel 102.Therefore be provided with left and right a pair of spoil disposal parts 6 as shown in Figure 2.Spoil disposal parts 6 have a conduct to scrape flight portion 10 and the elasticity stay part 11 as elastomeric element of mud parts.Flight portion 10 and elasticity stay part 11 are by having certain intensity and elastomeric material therein---and under the situation that for example metal, resin, rubber etc. form, they can be integrally formed (comprising that the integral body such as welding etc. connects) is the integral body (also being included in the basic bar 13 that below will describe and the integral part of connecting panel 15 except flight portion 10 and elasticity stay part 11) of spoil disposal parts 6.In the present embodiment, flight portion 10 and elasticity stay part 11 form independently parts respectively and are connected to each other with bolt 12.

Left and right spoil disposal parts 6 are connected to each other with the structure of shared basic bar 13.Two elasticity stay parts 11 securing device 14 by for example bolt etc. is connected on the basic bar 13 with the predetermined space corresponding to the width of wheel 102.Connecting panel 15 is arranged between the end of two elasticity stay parts 11.Left and right flight portion 10 is connected to each other through connecting panel 15 usefulness bolts 12.The flight portion 10 of equal number and the 11 coaxial accordingly settings of elasticity stay part.Flight portion 10 and elasticity stay part 11 also can need not coaxial setting (make flight portion 10 corresponding wheel width and elasticity stay part 11 can be wideer or narrower than this width), perhaps, and can left and right sides flight portion 10 shared elasticity stay parts 11.

Be in wherein at the connecting bridge of connecting panel 15 and flight portion 10 and be provided with a groove 16 among the either party, this groove 16 is microscler in the horizontal, and therefore left and right flight portion 10 can regulate with respect to connecting panel 15.Flight portion 10 is formed by for example materials such as metal sheet, resin board or rubber plate and is L shape hook shape.End on the long limit of L shape hook is to be used for and elasticity stay part 11 bonded assembly rear ends 20, and the end on the L shape hook minor face is the end portion 21 of butt side direction protrusion 100.

Spoil disposal parts 6 are arranged to that rear end 20 (being connected to the part of elasticity stay part 11) is turned round and end portion 21 are changeed forward and downwards at the rear side place of wheel 102.The position of spoil disposal parts 6 is adjusted like this: the end portion 21 of flight portion 10 impacts the radial inner end of the rotation leading surface 112 of side direction protrusion 100 with almost meeting at right angles, the rotation leading surface of this side direction protrusion 100 112 since wheel 102 when advancing rotation and scoop up earth from inside, ground.As shown in Figure 3, the end portion 21 of flight portion 10 is slick and sly, and flight portion 10 can not produce scratch on side direction protrusion 100 in impacting process like this.

In addition, in flight portion 10, the lateral edge portions of the side surface of steered wheel 102 forms butt or near the side surface of wheel 102.In the example shown in the figure, the lateral edge portions of the side surface of steered wheel 102 is rectilinear (as Fig. 2 etc.).Side surface at wheel 102 has at expansion direction under the situation of big curve (curve with small curvature radius), and the lateral edge portions of the side surface of steered wheel 102 can form the corresponding concave curve of curve that has with the side surface of wheel 102.In addition, as shown in Figure 5, the end portion 21 of flight portion 10 is formed with an inclination as follows, that is, this end portion 21 forms an angle that parallels with the tiltangle of the rotation leading surface 112 of the side direction protrusion of giving prominence to from the side surface of wheel 102 100.

According to fwd narration, shown in Fig. 6 and 7, flight portion 10 butts the radial inner end of the rotation leading surface 112 of side direction protrusion 100, keep the butt state then and advance to the radial outer end of rotation leading surface along with wheel 102 is rotated under the contact condition.Thereby flight portion 10 is wiped the earth that is attached on the rotation leading surface 112 reliably off.Simultaneously, flight portion 10 is also wiped the earth that is attached on wheel 102 side surfaces reliably off.Elasticity stay part 11 for example is (being formed by metal, resin or rubber etc.) such as a coil spring, leaf springs.As mentioned above, elasticity stay part 11 is connected to the rear end 20 of flight portion 10 by the securing device 12 of for example bolt etc.

As shown in Figure 4, flight portion 10 can be at least one vertical direction by 11 free vibrations of elasticity stay part and return to the state of an initial approximate horizontal, and if external force eliminate this state that still remains on.When flight portion 10 the rotation leading surface 112 of side direction protrusion 100 with the state butt of moving contact as mentioned above, the butt state of the flight portion 10 on the side direction protrusion 100 can be kept with the suitable power that is produced.In addition, in 100 rotations of side direction protrusion and after by flight portion 10 inaccessible positions, flight portion 10 returns to initial position (almost horizontal state).Repeat deflection along with the rotation of wheel 102 and shape is recovered as the elasticity stay part 11 of elastomeric element.

Flight portion 10 is L shape hook shape and is supported by elasticity stay part 11.Therefore, when wheel 102 contrarotations, the back of L shape hook is downward smoothly without difficulty by means of the side direction protrusion 100 of contrarotation.Thereby, when wheel 102 contrarotations, disadvantageous being hooked together can not taken place on side direction protrusion 100.As mentioned above, flight portion 10 and elasticity stay part 11 are parts separated from one another and are connected to each other by securing device 12.Therefore, can only change flight portion 10 or elasticity stay part 11.

As illustrated in fig. 1 and 2, the support component 5 that is used to support spoil disposal parts 6 is provided with approximated position control apparatus 30, arrangement for adjusting height 31, horizontal position control apparatus 32, angle regulator 33 etc.Approximated position control apparatus 30, arrangement for adjusting height 31, horizontal position control apparatus 32 and angle regulator 33 are location and regulating mechanism.Approximated position control apparatus 30 can be in wheel 102 position of (being horizontal direction in illustrative example) adjusted spoil disposal parts 6 radially.More specifically, approximated position control apparatus 10 has approximate horizontal ground axis 35 and slide unit 36 that keeps slidably with respect to axis 35 from field machine 2 rear extensions.Spoil disposal parts 6 are provided with by slide unit 36.Slide unit 36 for example is provided with suitable fastening (not shown)s such as fix screw, so that with respect to axis 35 location (fixing).

Arrangement for adjusting height 31 can be in the position of the short transverse adjusted spoil disposal parts 6 of distance kiss the earth.More specifically, arrangement for adjusting height 31 has one from the slide unit 36 of approximated position control apparatus 30 outstanding vertical bar 37 and a Lift Part 38 that keeps slidably with respect to vertical bar 37 downwards.Spoil disposal parts 6 are provided with by Lift Part 38.Lift Part 38 for example is provided with suitable fastening (not shown)s such as fix screw, so that with respect to vertical bar 37 location (fixing).The position of the wheel 102 that horizontal position control apparatus 32 is used for regulating spoil disposal parts 6 on axially.In the present embodiment, as mentioned above,, can regulate the horizontal position of flight portion 10 along groove 16 based on the connecting panel 15 that in mud discharging device 6, is arranged between flight portion 10 and the elasticity stay part 11.Therefore, this structure also is the device that is used to regulate the horizontal position.Yet this structure is mainly used to regulate the gap between each flight portion 10 and the wheel 102.

Horizontal position control apparatus 32 is set so that regulate the whole spoil disposal position component that comprises elasticity stay part 11 grades more energetically.More specifically, horizontal position control apparatus 32 has: a carriage 41, this carriage 41 are arranged on the Lift Part 38 of arrangement for adjusting height 31 and have one and laterally run through bullport 40 formed thereon; And an arm 42, this arm 42 is horizontally through the bullport 40 of carriage 41 and keeps slidably.Look in the plane, arm 42 bends to L shaped, and its crooked end portion makes it laterally projecting with the basic bar 13 that cantilevered fashion supports spoil disposal parts 6.

Carriage 41 for example is provided with suitable fastening (not shown)s such as fix screw, so that the bottom side of location (fix) arm 42 (along the part of horizontal direction extension).The flight portion 10 of angle regulator 33 scalable spoil disposal parts 6 is connected to the butt angle on the side direction protrusion 100.In the present embodiment, horizontal position control apparatus 32 is also as angle regulator 33.More specifically, the anglec of rotation of the arm 42 of the bullport 40 that the angle of basic bar 13 can be by regulate inserting carriage 41 is regulated, and the angle of spoil disposal parts 6 can be regulated by the angle of regulating basic bar 13.

From describe in detail, can obviously see, when mud-scraping apparatus 1 according to the present invention is attached on the field machine 2 also when needed to the approximated position control apparatus 30 in the support component 5, arrangement for adjusting height 31, horizontal position control apparatus 32, angle regulators etc. carry out proper handling, and when the flight portion 10 of spoil disposal parts 6 is arranged on a desired location with respect to wheel 102, the earth that is attached on the side direction protrusion 100 of the wheel 102 that rotates by the mobility operation of field machine 2 is wiped off reliably by flight portion 10, wherein flight portion 10 with the state of rotation leading surface 112 moving contacts of side direction protrusion 100 under along with the rotation of wheel 102 moves to radial outer end from radial inner end.

Simultaneously, the earth that is attached to wheel 102 side surfaces is wiped off reliably by the lateral edges of the flight portion in the spoil disposal parts 6 10.In addition, flight portion 10 supports by elasticity stay part 11.Therefore, the operation of flight portion 10 in the vertical direction repetitive vibrations, that is, its butt side direction protrusion 100 and is returned to initial position (state of approximate horizontal) subsequently, the more next side direction protrusion 100 of butt.Therefore, own for mud-scraping apparatus 1, even the earth stick on top also can be wiped off immediately because of vibration (in the vibration operation of vertical direction).Thereby, can stop earth in 1 accumulation on one's body of mud-scraping apparatus.More specifically, can stop the earth that adheres to form big agglomerate.

Provide therein under the situation of two flight portion 10, provide two to be suitable again elasticity stay part 11 that should flight portion 10.Between these two elasticity stay parts 11, formed a big space.By the repetitive vibrations operation of carrying out at vertical direction by flight portion 10, earth can be wiped off from this space immediately.Therefore, can stop earth to glue reliably and stay on basic bar 13, connecting panel 15 etc. and flight portion 10 and the elasticity stay part 11, and stop earth to become big.Naturally, this can stop the space between two elasticity stay parts 11 to fill the earth that becomes big.

By the above, the seedling 103 under can eliminating kind is directly hit by the earth that falls and causes the problem of damage.Particularly, be arranged on a relatively low position (apart near the bottom wheel 102 centers) by attaching height with flight portion 10, all remove earth in each rotation when wheel comes out from ground (farmland etc.), thereby stoped the change of accompanying earth big.Therefore, the earth of wiping off from the side surface of side direction protrusion 100 and wheel 102 or from 1 of mud-scraping apparatus on one's body the earth that falls of brush have the little potential energy that falls, and then replaced " falling " with the situation of " quiet let-down ".Therefore, can protect seedling 103 reliably.

In addition, can stop the clay contaminated that the road surface of paving fallen and when carwash, do not have the trouble of removing the earth that is attached to wheel 102.As mentioned above, in mud-scraping apparatus 1 itself, the earth that adheres to not have accumulation and does not produce big agglomerate equally.Therefore, for mud-scraping apparatus 1, do not remove the trouble of earth.The invention is not restricted to above-mentioned embodiment, but can make suitable change according to embodiment.For example, shown in the variation of Fig. 9, the flight portion 10 of spoil disposal parts 6 also can be taked to be viewed as the form of convex curve from the side and form.Take the flight portion 10 feasible rotation leading surfaces 112 that can impact very much side direction protrusion 100 of this shape near the angle at right angle, and, when wheel 102 contrarotations, can also stop being hooked together on the side direction protrusion 100.

Mud-scraping apparatus 1 according to the present invention can also be applied in other field machines except that paddy field cultivation machinery.In addition, wheel 102 can be front-wheel or trailing wheel and can be attached on the wheel of all expectations.Spoil disposal parts 6 can also only be attached on one of them side of wheel 102 on request.For approximated position control apparatus 30, arrangement for adjusting height 31, horizontal position control apparatus 32, the angle regulator 33 in support component 5 grades, the structure whether they exist, adopt etc. are also unrestricted.

According to the mud-scraping apparatus 1 of the wheel of the field machine that is used for present embodiment, can remove reliably and be attached to the earth of wheel side on protrusion, wheel side surface etc.Especially, be arranged on a lower position, can remove earth in the each rotation when wheel comes out from ground (farmland etc.), thereby stop the change of accompanying earth big by attachment positions (removing the position of the earth that adheres to) with mud-scraping apparatus.Therefore, can eliminate kind the earth that seedling down 103 quilts are fallen reliably directly hits and impaired problem.In addition, the part (flight portion) that is used to remove earth repeatedly carry out with the butt of side direction protrusion with separate, in the vertical direction has been realized the vibration operation thus.Therefore, by vibration also immediately brush fallen to be attached to mud-scraping apparatus originally on one's body earth and prevent to produce accumulation.Thereby, can stop the earth that adheres to produce big agglomerate.As mentioned above, the clay contaminated that the road surface that can suppress to pave is fallen is not attached to originally on one's body the trouble of earth of wheel or mud-scraping apparatus thereby do not have to remove when carwash.

Figure 11 shows the lateral plan according to the field machine 2x of second embodiment of the invention.This field machine 2x comprises body 4x, wheel 6x and mud-scraping apparatus 8x.Wheel 6x is made up of front-wheel 10x and trailing wheel 12x.Field machine 2x is the paddy field cultivation machinery of a four-wheel type.Body 4x has installed the equipment as paddy field cultivation machinery.In field machine 2x, mud-scraping apparatus 8x is attached on front-wheel 10x and the trailing wheel 12x.In Figure 11, horizontal direction is represented the length direction of body 4x.The front side of field machine 2x is represented in left side on the paper.Perpendicular to the direction of paper represent wheel 6x axially.

Front-wheel 10x only comprises the block protrusion 14x that is positioned on its outer surface.In field machine 2x, block protrusion 14x is made of trapezoidal protrusion 16x and triangle protrusion 18x.Trapezoidal protrusion 16x is arranged on the equatorial plane of front-wheel 10x.The triangle protrusion 18x that extends in the axial outside of trapezoidal protrusion 16x is arranged alternately along about hand of rotation in the both sides of trapezoidal protrusion 16x.Trailing wheel 12x comprises trapezoidal protrusion 16x and the blade-like protrusion 20x that is positioned on the outer surface.In trailing wheel 12x, trapezoidal protrusion 16x and blade-like protrusion 20x are arranged alternately along hand of rotation.Blade-like protrusion 20x is outstanding greatly to side direction.The outstanding side direction than blade-like protrusion 20x of the side direction of triangle protrusion 18x is outstanding little.Trapezoidal protrusion 16x does not have side direction outstanding.Therefore, in the front-wheel 10x that comprises trapezoidal protrusion 16x and triangle protrusion 18x, side direction is outstanding little.In the trailing wheel 12x that comprises blade-like protrusion 20x, side direction is outstanding big.The wheel 6x that comprises protrusion forms by burn elastomeric material on annular rim.

Figure 12 is a planar view, shows a part that is arranged on the mud-scraping apparatus 8x on the field machine 2x among Figure 11.In Figure 12, vertical direction represent wheel 6x axially.Horizontal direction is represented the length direction of body 4x.Field machine 2x front side is represented in left side on the paper.Mud-scraping apparatus 8x comprises support component 22x and spoil disposal parts 24x.Spoil disposal parts 24x wipes the earth that is attached on the wheel 6x off.Support component 22x comprises arm 26x that is attached on the body 4x and the retaining part 28x that the contact surface along wheel 6x is provided with from arm 26x.Spoil disposal parts 24x comprises be attached to that retaining part 28x goes up and at stay 30x that extends on the length direction of body 4x and the blade member 32x that is attached on the stay 30x and extends on the length direction of body 4x.

Arm 26x comprises the first bar 34x, the second bar 36x, the 3rd bar 38x, the first ring 40x, the second ring 42x and the 3rd ring 44x.The first bar 34x extends to rear side along body 4x length direction from body 4x.The second bar 36x extends along the vertical direction of body 4x.The first ring 40x is fixed by welding to the upper end of the second bar 36x.The 3rd bar 38x has been carried out bending machining.Thereby the 3rd bar 38x is configured to extend with length direction vertically.The part that the 3rd bar 38x extends was vertically inserted the 3rd ring 44x.The part of extending along the length direction of body 4x is fixed on the retaining part 28x by connecing at face down bonding thereafter.In field machine 2x, the 3rd ring 44x and the second ring 42x are fixed to one another by welding.

The first ring 40x can and can be fixed to a desired location along first bar 34x slip.The second ring 42x can and can be fixed to a desired location along second bar 36x slip.The 3rd ring 44x can slide and can be fixed to a desired location in axially extended part along the 3rd bar 38x.In this field machine 2x, the first bar 34x, the second bar 36x and the 3rd bar 38x all are made of circular rod member.Each bar also can be formed by the square rod member with square-section.

Retaining part 28x has substrate 46x, bolt 48x and nut 50x.Substrate 46x is axially long structure.Retaining part 28x can comprise other securing devices of non-bolt 48x and nut 50x.On substrate 46x both sides, be formed with the bolt hole (not shown) of energy inserting bolt 48x.

Stay 30x comprises the coil spring 52x as elastomeric element, the deflection of the stressed back of this elastomeric element and remove power after recover shape.Hook 54xa and 54xb are formed on the two ends of coil spring 52x.The hook 54xa that is positioned at rear side is arranged on below the substrate 46x and nut 50 is provided with in its lower section.Bolt 48x inserting bolt hole and hook 54xa on the substrate 46x.Bolt 48x screws among the nut 50x.Coil spring 52x and bolt 48x are fastening and be fixed to thus on the substrate 46x with nut 50x.

The material of preferred coil spring 52x is that metal material in certain strength is arranged.The example of this metallic material comprises steel, aluminum alloy and corrosion-resistant steel.For corrosion stability, corrosion-resistant steel is preferred.

Blade member 32x comprises and scrapes mud parts 56x, connecting panel 58x, bolt 60x and nut 62x.Scrape mud parts 56x and have the structure of wiping the earth 64x that is attached on the wheel 6x off.In field machine 2x, scrape axle 66x and a pawl 68x who extends towards the road surface from the end of axle 66x that mud parts 56x comprises that an elongatedness direction is extended downwards.In field machine 2x, scrape mud parts 56x and on the length direction of body 4x, extend along the side surface of wheel 6x.The end of scraping mud parts 56x is a rounding.The stay 30x side of scraping mud parts 56x is provided with an adjustment hole 70x.Adjustment hole 70x is long in the axial direction.Determine to scrape the shape of mud parts 56x suitably by the shape of considering protrusion, the size of wheel 6x etc.

The examples of material of scraping mud parts 56x comprises metallic material and synthesizing polymeric material.The example of metallic material comprises steel, aluminum alloy and corrosion-resistant steel.Consider corrosion stability, preferred corrosion-resistant steel.The example of synthesizing polymeric material comprises plastic material and elastomeric material.Consider intensity and commonality, preferred plastic material.The example of plastic material comprises polyvinylchloride, polystyrene, polyethylene, polypropylene, polyacetal and nylon.

Connecting panel 58x has elongate structure in the axial direction.Be formed with the bolt hole of inserting bolt 60x in the both sides of connecting panel 58x.Bolt 60x inserted the bolt hole of the adjustment hole 70x, the connecting panel 58x that scrape mud parts 56x and was positioned at the inboard of the hook 54xb of coil spring 52x front side, and screwed in the nut 62x that is arranged under the hook 54xb.Coil spring 52x, connecting panel 58x and scrape mud parts 56x and bolt 60x and nut 62x tighten together, thus blade member 32x is fixed on the stay 30x.So, scrape mud parts 56x and be attached to end as the coil spring 52x of elastomeric element.As mentioned above, the adjustment hole 70x that scrapes mud parts 56x is microscler in the axial direction.Therefore, the axial location of scraping mud parts 56x can be regulated.Blade member 32x can be fixed on the stay 30x by the securing device of non-bolt 60x and nut 62x.Blade member 32x and stay 30x can form parts by using the elastomeric material as elastomeric material.

In field machine 2x,, scrape the position of mud parts 56x end wise and can regulate because the first ring 40x can slide on the length direction of body 4x.Because the second ring 42x can slide by in the vertical direction, scrapes the position of mud parts 56x in the vertical direction and can regulate.Because the 3rd ring 38x can slide in the axial direction, scrapes mud parts 56x position in the axial direction and can regulate.Because the 3rd bar 38x can also can regulate with respect to the formed angle of length direction of scraping mud parts 56x with the direction rotation identical with wheel 6x.Field machine 2x comprises by the location of slide lock and regulating mechanism.Therefore, in field machine 2x, scrape the position of mud parts 56x and can regulate according to the situation in farmland, the diameter of wheel 6x, the width of wheel 6x, the coherent condition of earth 64x etc.

As mentioned above, the front-wheel 10x of field machine 2x is made of the block protrusion 14x with little lateral protrusion.Scrape the side surface setting of mud parts 56x along front-wheel 10x.Therefore, scrape mud parts 56x and wipe the earth 64x that is attached on the side surface reliably off.The trailing wheel 12x of field machine 2x comprises the blade-like protrusion 20x with big lateral protrusion.Scraping mud parts 56x is fixed on the coil spring 52x by connecting panel 58x.Therefore, scrape mud parts 56x can with on the length direction of frame 4x, outwards move when the rotation leading surface 72x of protrusion contacts, thereby wipe the earth 64x that is attached on the rotation leading surface 72x reliably off.As the coil spring 52x of elastomeric element along with rotation repeated deflection and the shape of front-wheel 10x are recovered shape.The end of scraping mud parts 56x is a rounding.Therefore, resistance is reduced when the end of scraping mud parts 56x contacts with rotation leading surface 72x.Thereby, scrape mud parts 56x and can on rotation leading surface 72x, smoothly move.

In field machine 2x, the earth 64x that is attached on the wheel 6x can wipe off reliably.Therefore, earth 64x can not pile up on wheel 6x.Because the earth 64x that wipes off does not pile up, can not form the agglomerate of earth 64x.Field machine 2x comprises location and regulating mechanism.Therefore scraping mud parts 56x can be arranged on the position lower apart from the road surface.The position of the earth 64x that wipe off thus, is also lower.Because the position of the earth 64x that will wipe off is low, the potential energy of falling the earth 64x on the road surface can be minimized.In field machine 2x, earth 64x can not become piece to fall, and the potential energy of the earth 64x that falls can be minimized.Thereby, can stop seedling etc. to suffer damage.

Figure 13 is the lateral plan that illustrates according to the part of the field machine 74x of third embodiment of the invention.Figure 13 shows the near zone of the trailing wheel 76x of field machine 74x.In field machine 74x, the structure of each several part is identical with the structure of the field machine 2x shown in Figure 11 except trailing wheel 76x.The outer surface of trailing wheel 76x only is provided with the block protrusion 78x with little lateral protrusion.

In addition, in field machine 74x, stay 30x comprises the coil spring 52x as elastomeric element, and its structure is for deflection when stressed and recover shape after removing power.Blade member 32x comprises and scrapes mud parts 56x along the side surface setting of wheel 80x.Therefore, scrape mud parts 56x and can wipe earth 64x on the side surface that is attached to wheel 80x reliably off.Because earth 64x is wiped off reliably, it can not piled up on wheel 80x.In addition, in field machine 74x, arm 26x is provided with location and regulating mechanism in the mode identical with field machine 2x among Figure 11.Therefore, scrape mud parts 56x and can be arranged on a position lower apart from the road surface.The position of the earth 64x that therefore, wipe off is very low.Because the position of the earth 64x that will wipe off is low, the potential energy of falling the earth 64x on the road surface can be minimized.In field machine 74x, earth 64x can not become piece to fall, and the potential energy of the earth 64x that falls can be minimized.Thereby, can stop seedling etc. to suffer damage.

Figure 14 is the lateral plan that illustrates according to the field machine 82x of four embodiment of the invention.Field machine 82x comprises body 4x, wheel 6x and mud-scraping apparatus 84x.Body 4x has installed the equipment as paddy field cultivation machinery.Wheel 6x is made up of front-wheel 10x and trailing wheel 12x.Field machine 82x is the paddy field cultivation machinery of a four-wheel type.Mud-scraping apparatus 84x is attached on front-wheel 10x and the trailing wheel 12x.In Figure 14, horizontal direction is represented the length direction of body 4x.The front side of field machine 82x is represented in left side on the paper.Perpendicular to the direction of paper represent wheel 6x axially.Except mud-scraping apparatus 84x, the structure of the field machine 2x among the structure of field machine 82x and Figure 11 is identical.

The outer surface of front-wheel 10x is provided with the block protrusion 14x that comprises triangle protrusion 18x and trapezoidal protrusion 16x.Therefore, the side direction of front-wheel 10x is outstanding less.The outer surface of trailing wheel 12x is provided with trapezoidal protrusion 16x and blade-like protrusion 20x.Therefore, the side direction of trailing wheel 12x is outstanding bigger.

Figure 15 is the lateral plan that the mud-scraping apparatus 84x among the field machine 82x that is arranged among Figure 14 is shown, and wherein a part is cut open.Figure 16 is the planar view that mud-scraping apparatus 84x among Figure 15 is shown.Mud-scraping apparatus 84x comprises support component 86x and spoil disposal parts 88x.Support component 86x comprises arm 90x that is attached on the body 4x and the retaining part 92x that the contact surface along wheel 6x is provided with from arm 90x.The scraper plate 96x that spoil disposal parts 88x comprises the stay 94x that is attached to holding member 92x and extends along the length direction of body 4x and is attached to stay 94x and extends along the length direction of body 4x.In mud-scraping apparatus 84x, each several part has the identical structure with mud-scraping apparatus 8x shown in Figure 12 except retaining part 92x and stay 94x.In Figure 15, axial perpendicular to the direction representative of paper.Horizontal direction is represented the length direction of body 4x.In Figure 16, vertical direction represent wheel 6x axially.Horizontal direction is represented the length direction of body 4x among the trailing wheel 6x.

Arm 90x comprises the first bar 98x, the second bar 100x, the 3rd bar 102x, the first ring 104x, the second ring 106x and the 3rd ring 108x.Arm 90x also comprise be arranged on Figure 11 in identical location and the regulating mechanism of mud-scraping apparatus 8x among the field machine 2x.

Retaining part 92x comprises cylinder 110x, substrate 112x, connecting element 114x and damper element 116x.In retaining part 92x, two cylinder 110x are separately positioned on substrate 112x both sides.Suitably determine to be arranged on quantity and the position of the cylinder 110x among the retaining part 92x.A cylinder 110x can be set in the middle of substrate 112x.

Stay 94x comprises the coil spring 118x as elastomeric element.The structure of coil spring 118x for can be when stressed deflection and after removing power, recover shape.In field machine 82x, the wherein end of coil spring 118x is contained in the cylinder 110x.The other end at coil spring 118x forms a hook 120x.

Scraper plate 96x comprises and scrapes mud parts 122x, connecting panel 124x, bolt 126x and nut 128x.Scrape mud parts 122x and have the structure that to wipe earth 64x off.Scrape mud parts 122x and be attached to the end of coil spring 118x.Scrape the side surface setting of mud parts 122x along wheel 80x.The stay 94x side of scraping mud parts 122x is provided with adjustment hole 130x.Be formed with the bolt hole (not shown) that to insert bolt 126x in the both sides of connecting panel 124x.Bolt 126x inserted the inboard of the hook 120x of the bolt hole of the adjustment hole 130x, the connecting panel 124x that scrape mud parts 122x and coil spring 118x, and screwed in the nut 128x that is arranged under the hook 120x.In addition, in field machine 82x, coil spring 118x, connecting panel and scrape mud parts 122x and bolt 126x and nut 128x tighten together, thus scraper plate 96x is fixed on the stay 94x.Adjustment hole 130x is microscler in the axial direction.Therefore, the axial location at blade member 122x is adjustable.

The front-wheel 10x of field machine 82x is made of the block protrusion 14x with little lateral protrusion.Scrape the side surface setting of mud parts 122x along front-wheel 10x.Therefore, scrape mud parts 122x and wipe the earth 64x that is attached on this side surface reliably off.The trailing wheel 12x of field machine 82x comprises the blade-like protrusion 20x with big lateral protrusion.Scraping mud parts 122x is fixed on the coil spring 118x by connecting panel 124x.Therefore, scrape mud parts 122x can with on the length direction of frame 4x, outwards move when the rotation leading surface 72x of protrusion contacts, thereby wipe the earth 64x that is attached on the rotation leading surface 72x reliably off.As the coil spring 118x of elastomeric element along with rotation repeated deflection and the shape of trailing wheel 12x are recovered.The end of scraping mud parts 122x is a rounding.Therefore, resistance can be reduced when the end of scraping mud parts 122x contacts with rotation leading surface 72x.Thereby, scrape mud parts 122x and can on rotation leading surface 72x, smoothly move.

Because arm 90x is provided with location and regulating mechanism, scrapes the position of mud parts 122x and can regulate according to the situation in farmland, the diameter of wheel 6x, the width of wheel 6x, the coherent condition of earth 64x etc.In field machine 82x, scrape mud parts 122x and can be arranged on a position lower apart from the road surface.The position of the earth 64x that therefore, wipe off is very low.Because the position of the earth 64x that will wipe off is low, the potential energy of falling the earth 64x on the road surface can be minimized.In field machine 82x, earth 64x can not become piece to fall, and the potential energy of the earth 64x that falls can be minimized.Thereby, can stop seedling etc. to suffer damage.

Figure 17 is the section drawing of getting along Figure 15 center line D-D.Figure 17 shows coil spring 118x wherein and is fixed to state on the cylinder 110x.Figure 17 shows cylinder 110x, coil spring 118x, damper element 116x and comprises bolt 132x and the connecting element 114x of nut 134x.The part of coil spring 118x is contained in the cylinder 110x.Damper element 116x be contained within the cylinder 110x and be arranged on coil spring 118x and cylinder 110x between.Cylinder 110x is provided with a fixed orifice 136x, and this fixed orifice 136x runs through from the inboard, lateral of cylinder 110x.In this device, bolt 132x screws in fixed orifice 136x from the outside of cylinder 110x.Therefore, the end of bolt 132x is through damper element 116x extrusion spiral spring 118x inside face.Nut 134x makes bolt 132x can not move from the fastening cylinder 110x in its outside.Therefore, coil spring 118x is fixed on the cylinder 110x.Thereby in this device, stay 94x can be fixed on the retaining part 92x.Coil spring 118x is fixed on the cylinder 110x.Therefore, can stop coil spring 118x distortion or crooked.This mud-scraping apparatus 84x has good durability.Connecting element 114x can be made of anchor clamps etc.

Damper element 116x can be the flat sheet material with preliminary dimension.Damper element 116x can be a bent sheet, and it is configured as the cross section with the curved shape that conforms to the external surface shape of cylinder 110x in advance.Damper element 116x can form the whole periphery that covers cylinder 110x.As for the material of damper element 116x, preferred plastic material and elastomeric material.Aspect elastic deformation, elastomeric material is preferred.The example of elastomeric material comprises natural rubber, buna-S, butadiene rubber and isoprene rubber.Aspect commonality, natural rubber is preferred.

The contriver probe field machine 2x and each the mud-scraping apparatus 8x of 82x and the durability of 84x.In investigation, change from 1.5km/h to the 1.7km/h scope and carry out measuring under the situation of paddy rice plantation the elastomeric element fracture required time of mud-scraping apparatus 8x and 84x in plantation speed.When mud-scraping apparatus 8x is attached among Figure 11 field machine 2x, determined that coil spring 52x ruptured when starting working in two hours.On the other hand, in mud-scraping apparatus 84,, the investigation result of acquisition continued to carry out 40 hours or more fractures of also not observing coil spring 118x even being work.With reference to investigation result, determine that roughly the durability of mud-scraping apparatus 84x is better than the durability of mud-scraping apparatus 8x among Figure 11 by being obtained on the actual machine.

Figure 18 is the lateral plan that illustrates according to the part of the field machine 138x of fifth embodiment of the invention.Figure 18 shows the near zone of the trailing wheel 140x of field machine 138x.In field machine 138x, the structure of each several part is identical with the structure of the field machine 82x shown in Figure 14 except trailing wheel 140x.The outer surface of trailing wheel 140x only comprises the block protrusion 142x with little lateral protrusion.

In addition, in field machine 138x, stay 94x comprises the coil spring 118x as elastomeric element, and its structure is for deflection when stressed and recover shape after removing power.Coil spring 118x is repeated deflection and shape recovery along with the rotation of wheel 144x.Scraper plate 96x comprises and scrapes mud parts 122x along the side surface setting of wheel 144x.Therefore, scrape mud parts 122x and can wipe earth 64x on the side surface that is attached to wheel 144x reliably off.Because earth 64x is wiped off reliably, it can not piled up on wheel 144x.

The retaining part 92x of field machine 138x also comprises substrate 112x, cylinder 110x, connecting element 114x and damper element 116x.It is interior and fastening by means of connecting element 114x by damper element 116x that coil spring 118x partly is contained in cylinder 110x, and therefore coil spring 118x fixes.Therefore, can stop coil spring 118x distortion and fracture.The durability of mud-scraping apparatus 84x is good.

The arm 90x of field machine 138x also comprises and identical location and the regulating mechanism of field machine 82x among Figure 14.Therefore, scrape mud parts 122x and can be arranged on a position lower apart from the road surface.The position of the earth 64x that therefore, wipe off is very low.Because the position of the earth 64x that will wipe off is low, the potential energy of falling the earth 64x on the road surface can be minimized.In field machine 138x, earth 64x can not become piece to fall, and the potential energy of the earth 64x that falls can be minimized.Thereby, can stop seedling etc. to suffer damage.

Since according to each mud-scraping apparatus of second to the 5th embodiment comprise be provided with along the wheel side surface scrape the mud parts, the earth that is attached to the wheel side surface can be wiped off reliably.Therefore, earth can not be deposited on the wheel.Stay comprises stressed deflection and recover the elastomeric element of shape after removing power.Therefore, in having the wheel of the big lateral protrusion of blade-like protrusion for example, the end of scraping the mud parts can outwards move with the length direction along body when the rotation leading surface of blade-like protrusion contacts.Thereby mud-scraping apparatus can be wiped the earth on the rotation leading surface that is attached to the blade-like protrusion off.Elastomeric element partly is contained in the cylinder and through damper element and is fastened on the connecting element, and this elastomeric element is fixed on the cylinder.Therefore, in comprising the field machine of mud-scraping apparatus, elastomeric element when work be both indeformable does not rupture yet.The durability of this mud-scraping apparatus is good.

Figure 19 shows the lateral plan according to the field machine 2y of sixth embodiment of the invention.This field machine 2y comprises body 4y, wheel 6y and mud-scraping apparatus 8y.Equipment as paddy field cultivation machinery has been installed on the body 4y.Wheel 6y is made up of front-wheel 10y and trailing wheel 12y.Field machine 2y is the paddy field cultivation machinery of a four-wheel type.Mud-scraping apparatus 8y is attached on the trailing wheel 12y.In Figure 19, the front side of field machine 2y is represented in the left side on the paper.Perpendicular to the direction of paper represent wheel 6y axially.This field machine 2y can be the vehicle of two-wheeled type.

The structure of wheel 6y, size etc. are suitably determined by the specification of considering field machine 2y etc.In field machine 2y, wheel 6y comprises wheel hub 14ya and 14yb, spoke 16ya and 16yb, the annular rim that is attached to spoke 16ya and 16yb end of radially extending from wheel hub 14ya and 14yb and resilient ring parts 18ya and the 18yb that covers wheel rim.Axletree is assemblied among wheel hub 14ya and the 14yb.Being arranged on spoke 16ya on the wheel 6y and the quantity of 16yb is respectively three.The quantity of spoke 16ya and 16yb can be four or more.In Figure 19, wheel rim is covered by resilient ring parts 18ya and 18yb, does not therefore show.

Spoke 16ya and 16yb and wheel rim constitute by metal tube.The examples of material of spoke 16ya, 16yb and wheel rim comprises steel and corrosion-resistant steel.Aspect anticorrosive property, preferred corrosion-resistant steel.

Wheel hub 14ya and 14yb and spoke 16ya and 16yb and spoke 16ya and 16yb and wheel rim pass through solder bond respectively.They can be by for example combinations such as riveted joint or bolted connection.In field machine 2y, cover with resilient ring parts 18ya and 18yb near spoke 16ya and 16yb part with the wheel rim joint portion.In spoke 16ya and 16yb, cover part 20y covers with resilient ring parts 18ya and 18yb.

Resilient ring parts 18ya and 18yb comprise protrusion 22ya and 22yb.In field machine 2y, protrusion 22ya and 22yb have different structures on front-wheel 10y and trailing wheel 12y.The protrusion 22ya of front-wheel 10y comprises outshot 24y and propulsive units 26y.Outshot 24y is arranged on the equatorial plane of wheel 6y.Along about hand of rotation, be provided with alternately in the both sides of outshot 24y from the outward extending vertically propulsive units 26y of outshot 24y.The protrusion 22yb of trailing wheel 12y comprises craspedodrome leader 28y and blade-like part 30y.Craspedodrome leader 28y and blade-like part 30y alternately are provided with on hand of rotation.The structure of protrusion 22ya and 22yb also waits to determine by the specification of considering field machine 2y.Thereby the protrusion 22yb of trailing wheel 12y can be made of outshot 24y and propulsive units 26y.In field machine 2y, resilient ring parts 18ya and 18yb are made of elastomeric material.

Figure 20 illustrates mud-scraping apparatus 8y among Figure 19 and the local amplification view of trailing wheel 12y.In Figure 20, the horizontal direction on the paper is represented axial direction.Mud-scraping apparatus 8y comprises adapter 32y, support component 34y and spoil disposal parts 36y.In Figure 20, long and short dash line CLy represents the equatorial plane of wheel 6y.

Adapter 32y is positioned between body 4 and the support component 34y.Adapter 32y is attached to body 4y and upward and to trailing wheel 12y extends.In field machine 2y, the end 44y of adapter 32y is parallel to axial bending.The structure of adapter 32y and attaching part wait to determine by the structure of considering field machine 2y, the size of wheel 6y.Support component 34 directly attaching on body 4y.

The 3rd arm 52y that second arm 50y that support component 34y comprises the first arm 48y that side surface 46y from adapter 32y along wheel 6y extends, extend vertically from the first arm 48y and the surface of the opposite side from the second arm 50y along wheel 6y 46y extend.

The first arm 48y has the first ring 54y on an outer end therein, and has the second ring 56y on another outer end.The 3rd arm 52y has the 3rd ring 58y on an outer end therein.The second arm 50y is kept by the first ring 54y and the 3rd ring 58y, and is fixed to thus on the first arm 48y and the 3rd arm 52y.The second ring 56y maintains adapter 32y, thereby support component 34y is fixed on the adapter 32y.

Spoil disposal parts 36y comprises that first scrapes mud parts 60y, second and scrape mud parts 62y, the first holding member 64y and the second holding member 66y.First scrapes mud parts 60y from support component 34y side---and be that the first arm 48y side is extended vertically towards the equatorial plane of wheel 6y.The first holding member 64y has Fourth Ring 68y on an one outer end.The first holding member 64y is positioned the first arm 48y and first and scrapes between the mud parts 60y and scrape mud parts 60y with first and fix, and further maintains the first arm 48y by Fourth Ring 68y.Second scrapes mud parts 62y extends towards the equatorial plane of wheel 6y vertically from the 3rd arm 52y side.The second holding member 66y has five rings 70y on an one outer end.The second holding member 66y is positioned the 3rd arm 52y and second and scrapes between the mud parts 62y and scrape mud parts 62y with second and fix, and further maintains the 3rd arm 52y by five rings 70y.

First scrapes structure that mud parts 60y and second scrapes mud parts 62y recovers shape after for the deflection when the power that is subjected on wheel 6y hand of rotation and the power of removing.

Scrape mud parts

60y and 62y repeated deflection and shape recovery along with wheel revolutions.In field machine 2y, first scrapes mud parts 60y and second, and to scrape mud parts 62y be coil spring.Helical spring examples of material comprises metallic material and synthesizing polymeric material.Consider intensity, preferred metal materials is as helical spring material.The example of metallic material comprises steel, aluminum alloy and corrosion-resistant steel.Consider corrosion stability, preferred corrosion-resistant steel.First scrapes mud parts 60y and second scrapes mud parts 62y and can be made of the rod member that elastomeric material forms.In the case, the example of elastomeric material comprises natural rubber, buna-S, butadiene rubber and isoprene rubber.Aspect commonality, natural rubber is preferred.

The first ring 54y and the 3rd ring 58y are configured to slide and be fixed to the desired location of the second arm 50y along the second arm 50y.Fourth Ring 68y is configured to slide and be fixed to the desired location of the first arm 48y along the first arm 48y.Five rings 70y is configured to slide and be fixed to the desired location of the 3rd arm 52y along the 3rd arm 52y.The second ring 56y is configured to slide and be fixed to the desired location of adapter 32y along adapter 32y.

In field machine 2y, the first arm 48y, the second arm 50y, the 3rd arm 52y and adapter 32y are made of circular rod member.This circle rod member also can be substituted by the square rod member with square-section.The first ring 54y has the slide opening and a threaded portion that can insert the circular rod member that constitutes this second arm 50y, and wherein circular rod member can be fixed to this threaded portion on the outer circumferential side surface of the first ring 54y, and this threaded portion is not shown.This threaded portion is made of screw and screw hole.When screw screwed in screw hole, it pushed the side surface of circular rod member.Circular rod member is fixed in extruding by screw.In field machine 2y, the second ring 56y, the 3rd ring 58y, Fourth Ring 68y and five rings 70y have the structures identical with first ring 54.Field machine 2y is provided with by the location of slide lock and regulating mechanism.In field machine 2y, first scrape mud parts 60y and second scrape mud parts 62y the position can by means of the location and regulating mechanism according to the situation in farmland, the diameter of wheel 6y, the width of wheel 6y, the adjustings such as coherent condition of earth.In field machine 2y, earth is attached near the 20y of cover part easily.Therefore, in field machine 2y, first scrapes mud parts 60y and second scrapes mud parts 62y and is arranged in the 20y butt position thereon, cover part.Location and regulating mechanism can be made of anchor clamps etc.

Consider intensity, circular rod member and connecting element are formed by metallic material.The example of metallic material comprises steel, aluminum alloy and corrosion-resistant steel.Aspect corrosion stability, corrosion-resistant steel is preferred.

In Figure 20, arrow line DAy has represented at the terminal 72ya and second that first of the equatorial plane side of wheel 6y is scraped mud parts 60y and has scraped gap between the terminal 72yb of mud parts 62y.Point PAy has represented the center of clearance D Ay.In field machine 2y, some PAy is positioned on the equatorial plane of wheel 6y.Point PAy can be offset from the equatorial plane.The terminal 72yb of the terminal 72ya of first spoil disposal part and second spoil disposal part can contact with each other.

Figure 21 is the section drawing of getting along E-E line among Figure 20.Figure 21 shows first part, second of scraping mud parts 60y, the first holding member 64y and scrapes the part of mud parts 62y, the second holding member 66y and the cover part 20y on the device 8y.Along with the rotation of wheel 6y, cover part 20y scrapes mud parts 60y and second near first and scrapes mud parts 62y.Then, cover part 20y butt first is scraped mud parts 60y and second and is scraped mud parts 62y.In Figure 21, arrow line F represents the hand of rotation of wheel 6y.

Figure 22 illustrates cover part 20y butt first to scrape the section drawing that mud parts 60y and second scrapes the state of mud parts 62y.When cover part 20y butt first was scraped mud parts 60y and second and scraped mud parts 62y, power was applied to first and scrapes mud parts 60y and second and scrape on the mud parts 62y.First scrapes mud parts 60y and second scrapes mud parts 62y deflection owing to applied force.Cover part 20y scrapes part between the mud parts 62y through scraping mud parts 60y and second first, makes the two deflection simultaneously.When coating member 20y has passed through part between the two, be applied to first and scrape the power that mud parts 60y and second scrapes on the mud parts 62y and be removed.First scrapes mud parts 60y and second scrapes mud parts 62y and has the shape recovery characteristics.Therefore, scrape after mud parts 60y and second the power on the mud parts 62y of scraping is removed when being applied to first, first scrapes mud parts 60y and second scrapes mud parts 62y and gets back to state shown in Figure 21.In field machine 2y, first scrapes that mud parts 60y and second scrapes the deflection of mud parts 62y and shape is recovered to repeat.Thereby spoke 16ya and 16yb are configured to repeat to recover as the deflection of scraping mud parts 60y and 62y and the shape of elastomeric element along with the rotation of wheel 6y.In Figure 22, arrow line F represents the hand of rotation of wheel 6y equally.

Cover part 20y butt first and is scraped mud parts 60y and second and scrape mud parts 62y, thereby the earth that is attached on the 20y of cover part is wiped off.As mentioned above, device 8y has the cover part through scraping the structure that mud parts 60y and second scrapes the part between the mud parts 62y first.Therefore, the earth that can will be attached to axial inboard from the side surface 46y of wheel 6y is wiped off reliably.Do not pile up because the earth of wiping off so neither adheres to also, can not form the earth agglomerate.

Compare with the spoil disposal parts that have by the end of scraping the mud component set-up of crossing the line face, in field machine 2y, first of cover part 20y butt is scraped mud parts 60y or second, and to scrape the length of mud parts 62y less.Therefore, in field machine 2y, can suppress the wearing and tearing of cover part 20y.Among the field machine 2y that the wearing and tearing of cover part 20y therein are suppressed, can prevent the deterioration of the durability of wheel 6y.

In field machine 2y, mud-scraping apparatus 8y need not to cover wheel at longitudinal direction and horizontal direction as traditional mud-scraping apparatus.Therefore, the increase of vehicle weight is minimized.The deterioration that therefore, can stop the ride characteristic on soft terrains such as for example rice terrace.In addition, spoil disposal parts 36y can be arranged on the position lower apart from pavement-height.Thus, the position of the earth that wipe off is also very low.Like this, can reduce the potential energy of falling the earth on the road surface.In field machine 2y, earth can not become piece to fall, and the potential energy of the earth that falls can be minimized.Thereby, can stop seedling etc. to suffer damage.

Figure 23 to 25 shows a spoil disposal parts 37y according to the variation of the spoil disposal parts 36y of the 6th embodiment.In spoil disposal parts 36y, two elastomeric elements (coil spring) extend towards the wheel 6y equatorial plane vertically from support component 34y side.On the other hand, in spoil disposal parts 37y, an elastomeric element (coil spring) extends towards the wheel 6y equatorial plane vertically from support component 34y side.This elastomeric element is only in the axial side setting of wheel 6y.In following description to spoil disposal parts 37y, the structure identical with spoil disposal parts 36y has the identical label with spoil disposal parts 36y, and describes and will suitably omit.

Spoil disposal parts 37y comprises and scrapes mud parts 61y and holding member 65y.Scrape mud parts 61y from support component 34y side---be that arm 49y side is extended vertically towards the wheel 6y equatorial plane.Holding member 65y has ring 69y on an one outer end.Holding member 65y is positioned arm 49y and scrapes between the mud parts 61y in order to fixedly scraping mud parts 61y, and maintains arm 49y by means of ring 69y.

Scrape mud parts 61y be arranged on the overlapping axial range of the axial width of cover part 20y (or spoke 16yb) in.Scrape mud parts 61y and be arranged to position from axial one of cover part 20y (or spoke 16yb) distolateral position to axial opposite side.In other words, scrape the whole axial width that mud parts 61y is arranged to cross cover part 20y (or spoke 16yb).Scrape the structure of recovering shape after mud parts 61y has when being subjected to the power of wheel 6y hand of rotation deflection and removing this power.Scraping mud parts 61y recovers with rotation repeated deflection and the shape of wheel 6y.Scraping mud parts 61y is coil spring.Helical spring examples of material comprises metallic material and synthesizing polymeric material.Consider intensity, preferred metal materials is as helical spring material.The example of metallic material comprises steel, aluminum alloy and corrosion-resistant steel.Consider corrosion stability, preferred corrosion-resistant steel.Scraping mud parts 61y can be made of the rod member that elastomeric material forms.In the case, the example of elastomeric material comprises natural rubber, buna-S, butadiene rubber and isoprene rubber.Aspect commonality, natural rubber is preferred.

48y is identical with the first arm, and arm 49y is made of circular rod member.As mentioned above, the second arm 50y, the 3rd arm 52y and adapter 32y are made of circular rod member.This circle rod member can be substituted by the square rod member with square-section.Spoil disposal parts 37y is provided with location and the regulating mechanism via slide lock, and figure does not show.By this location and regulating mechanism, scrape the position of mud parts 61y and can regulate according to the situation in farmland, the diameter of wheel 6y, the width of wheel 6y, the coherent condition of earth etc.In field machine 2y, earth is attached near the 20y of cover part easily.Therefore, in field machine 2y, scrape mud parts 61y and be arranged in the 20y butt position thereon, cover part.This location and regulating mechanism can be made of anchor clamps etc.

Figure 24 is the section drawing of getting along G-G line among Figure 23.Figure 24 shows a part and the cover part 20y that scrapes mud parts 61y, holding member 65y.Along with the rotation of wheel 6y, cover part 20y is near scraping mud parts 61y.Then, the cover part butt is scraped mud parts 61y.In Figure 24, arrow line H represents the hand of rotation of wheel 6y.

Figure 25 illustrates the section drawing that cover part 20y butt is scraped the state of mud parts 61y.When cover part 20y butt was scraped mud parts 61y, a power is applied to scraped on the mud parts 61y.Scrape mud parts 61y deflection owing to applied force.The end portion of cover part 20y through scraping mud parts 61y makes simultaneously and scrapes mud parts 61y deflection.When coating member 20y has passed through end portion, be applied to the power of scraping on the mud parts 61y and be removed.Scrape mud parts 61y and have the shape recovery characteristics.Therefore, after being applied to the power of scraping on the mud parts 61y and removing, scrape mud parts 61y and get back to state shown in Figure 24.Thereby, scrape deflection and the shape of mud parts 61y and recover to repeat along with the rotation of wheel 6y.Like this, spoke 16ya and 16yb are configured to repeat to recover as the deflection of scraping mud parts 61y and the shape of elastomeric element along with the rotation of wheel 6y.In Figure 25, arrow line H represents the hand of rotation of wheel 6y equally.

Cover part 20y butt and is scraped mud parts 61y, thereby the earth that is attached on the 20y of cover part is wiped off.As mentioned above, adopted cover part 20y the structure of scraping mud parts 61y through end portion and the while butt of scraping mud parts 61y.Therefore, the earth that can will be attached to axial inboard from the side surface 46y of wheel 6y is wiped off reliably.Do not pile up because the earth of wiping off so neither adheres to also, can not form the earth agglomerate.

Figure 26 is the lateral plan that illustrates according to the part of the field machine 74y of seventh embodiment of the invention.Field machine 74y comprises body 4y, wheel 6y and mud-scraping apparatus 8y.Field machine 74y is the vehicle of four-wheel type, and wherein wheel 6y comprises front-wheel 10y and trailing wheel 76y.Figure 26 shows a part and the trailing wheel 76y of mud-scraping apparatus 8y.Mud-scraping apparatus 8y is attached on the trailing wheel 76y.Trailing wheel 76y comprises outstanding blade-like protrusion 78y of perimeter surface in it.Except trailing wheel 76y, the each several part structure of field machine 74y is identical with field machine 2y among Figure 19.Therefore, mud-scraping apparatus 8y comprises regulating and is arranged on first among the spoil disposal parts 36y and scrapes location and the regulating mechanism that mud parts 60y and second scrapes the position of mud parts 62y.Therefore, in field machine 74y, first scrapes mud parts 60y and second scrapes mud parts 62y and can be arranged on one and taken into account rideability and scrape on the position of balance of mud.Therefore, in field machine 74, can scrape the deterioration that interference that mud parts 60y and second scrapes mud parts 62y tool setting sheet protrusion 78y prevents rideability by first.In addition, field machine 74y can wipe the earth that is attached on the wheel 6y reliably off.

Figure 27 is the planar view that illustrates according to the part that is arranged on the mud-scraping apparatus 82y among the field machine 80y of eighth embodiment of the invention.Field machine 80y comprises body 4y, wheel 6y and mud-scraping apparatus 82y.The structure of field machine 2y among body 4y among the field machine 80y and the structure of wheel 6y and Figure 19 is identical.Field machine 80y also is a four-wheel type vehicle, and wherein, wheel 6y is made of front-wheel 10y and trailing wheel 12y.Equally, in field machine 80y, mud-scraping apparatus 82y is attached on the trailing wheel 12y.Figure 27 shows the part of trailing wheel 12y and the part of mud-scraping apparatus 82y.

Mud-scraping apparatus 82y comprises adapter 84y, support component 86y and spoil disposal parts 88y.Second arm 92y that support component 86y comprises the first arm 90y that extends along the side surface 46y of wheel 6y from adapter 84y, extend vertically from the first arm 90y and the 3rd arm 94y that extends from the second arm 92y along the opposite side of side surface 46y.Spoil disposal parts 88y comprises from the first arm 90y side and first scrapes mud parts 96y and second scrape mud parts 98y from the 3rd arm 94y side towards what the wheel 6y equatorial plane extended vertically towards what the wheel 6y equatorial plane extended vertically.First scrapes mud parts 96y and second, and to scrape mud parts 98y be coil spring.

In Figure 27, arrow line DBy has represented at the first terminal 100ya and second that scrapes mud parts 96y and has scraped gap between the terminal 100yb of mud parts 98y.Arrow line WBy represents cover part 20y axial width.Point PBy has represented the center of clearance D By.In field machine 80y, the terminal 100yb that the first terminal 100ya and second that scrapes mud parts 96y scrapes mud parts 98y is positioned at the axial outside of cover part 20y.Terminal 100ya can be configured to contact with the side surface of cover part 20y with 100yb.Therefore, in field machine 80y, clearance D By is arranged to be equal to or greater than width W By.In this field machine 80y, wherein first scrape the zone that mud parts 96y and second scrapes mud parts 98y butt cover part 20y and can be minimized.Therefore, can suppress the wearing and tearing of cover part 20y.Because the wearing and tearing of cover part 20y are suppressed, and have prevented the deterioration of the durability of wheel 6y.In field machine 80y, some PBy is positioned on the equatorial plane of wheel 6y.Point PBy can be offset from the equatorial plane.

Figure 28 illustrates the planar view that is arranged on the part of the mud-scraping apparatus 104y among the field machine 102y according to ninth embodiment of the invention.Field machine 102y comprises body 4y, wheel 6y and mud-scraping apparatus 104y.The structure of field machine 2y among body 4y among the field machine 102y and the structure of wheel 6y and Figure 19 is identical.Field machine 102y also is a four-wheel type vehicle, and wherein, wheel 6y is made of front-wheel 10y and trailing wheel 12y.Equally, in field machine 102y, mud-scraping apparatus 104y is attached on the trailing wheel 12y.Figure 28 shows the part of trailing wheel 12y and the part of mud-scraping apparatus 104y.

Mud-scraping apparatus 104y comprises adapter 106y, support component 108y and spoil disposal parts 110y.Second arm 114y that support component 108y comprises along side surface 46y of wheel 6y from adapter 106y the first arm 112y that extends, extend vertically from the first arm 112y and the 3rd arm 116y that extends from the second arm 114y along the opposite side surface 46y of wheel 6y.Spoil disposal parts 110y comprises: from support component 108y side---being the first arm 112y side first scrapes mud parts 118y towards what the wheel 6y equatorial plane extended vertically; And second scrape mud parts 120y towards what the wheel 6y equatorial plane extended vertically from the 3rd arm 116y side.Identical with the mode of as shown in figure 28 mud-scraping apparatus 104y, first scrapes the axial outside that terminal 122y that mud parts 118y and second scrapes mud parts 120y is positioned at coating member 20y.In field machine 102y, scraping terminal 122ya and the 122yb that mud parts 118y and second scrapes the equatorial plane side of mud parts 120y first does not have butt cover part 20y.

In Figure 28, arrow line DCy has represented at the first terminal 122ya and second that scrapes mud parts 118y and has scraped gap between the terminal 122yb of mud parts 120y.Arrow line WCy represents the axial width of cover part 20y.Point PCy has represented the center of clearance D Cy.In field machine 102y, the terminal 122yb that the first terminal 122ya and second that scrapes mud parts 118y scrapes mud parts 120y is positioned at the axial outside of cover part 20y.For this reason, clearance D Cy is greater than width W Cy.In this field machine 102y, first scrapes mud parts 118y and second scrapes mud parts 120y and does not have butt cover part 20y.Therefore cover part 20y can not wear and tear.Because cover part 20y can not be worn, the durability of wheel 6y can deterioration.In field machine 102y, some PCy is positioned on the equatorial plane of wheel 6y.Point PCy can be offset from the equatorial plane.

In field machine 102y, first scrapes mud parts 118y and second scrapes mud parts 120y and does not have butt cover part 20y.Therefore, can use the rod member of wherein not considering deflection and recovery of elasticity to scrape mud parts 118y and second and scrape mud parts 120y as first.Be used for first by use and scrape the rod member that mud parts 118y and second scrapes mud parts 120y, can reduce the manufacturing cost of mud-scraping apparatus 104y.For example, the cross sectional shape of rod member is circle or rectangle.For the material of rod member, preferred metal materials and synthesizing polymeric material.The example of metallic material comprises steel, aluminum alloy and corrosion-resistant steel.Consider corrosion stability, preferred corrosion-resistant steel.The example of synthesizing polymeric material comprises plastic material and elastomeric material.Consider commonality and processing characteristics, preferred plastic material.The example of plastic material comprises polyvinylchloride, polystyrene, polyethylene, polypropylene, polyacetal and nylon.

All do not have on the longitudinal direction and cover the large scale structure of wheel in a lateral direction according to the mud-scraping apparatus of the 6th to the 9th embodiment.Therefore, the increase of vehicle weight can minimize.The deterioration that therefore, can stop the ride characteristic on soft terrains such as for example rice terrace.In addition, this device is attached to the position lower apart from pavement-height.Thus, earth is wiped off on the very low position of distance pavement-height.This device comprises that scraping mud parts and second towards first of wheel equatorial plane extension vertically scrapes the mud parts.Thus, this device can be wiped the earth that is attached to axial inboard from the side surface of wheel reliably off.Do not pile up because the earth of wiping off so neither adheres to also, can not form the earth agglomerate.In this device, earth can not become piece to fall, and further, earth scrapes in highly lower position.Therefore, can effectively stop sustain damages such as seedling.

Figure 29 shows the lateral plan according to the field machine 2z of tenth embodiment of the invention.This field machine 2z comprises body 4z, wheel 6z and mud-scraping apparatus 8z.Body 4z has installed the equipment as paddy field cultivation machinery.Wheel 6z is made up of front-wheel 10z that is attached to body 4z front portion and the trailing wheel 12z that is attached to body 4z rear portion.Field machine 2z is the paddy field cultivation machinery of a four-wheel type.Mud-scraping apparatus 8z is attached on front-wheel 10z and the trailing wheel 12z.In Figure 29, horizontal direction is represented the length direction of body 4z.The front side of field machine 2z is represented in left side on the paper.Perpendicular to the direction of paper represent wheel 6z axially.

Wheel 6z comprises iron tyre 14z and at the cyclic spring ring component 16z of iron tyre 14z radial outside.Spoke 20z that iron tyre 14z radially extends by hub 18z, from hub 18z and the annular rim that is fixed in spoke 20z end constitute.Wheel 6z is the spoke type.Wheel rim covers with resilient ring parts 16z, does not therefore illustrate.

Resilient ring parts 16z comprises the protrusion 22z that is positioned on its outer surface.Protrusion 22z only is made of block protrusion 24z.Block protrusion 24z is made of trapezoidal protrusion 26z and triangle protrusion 28z.Resilient ring parts 16z does not comprise and has to the outstanding bigger blade-like protrusion of wheel 6z side direction.Trapezoidal protrusion 26z is arranged on the equatorial plane of wheel 6z.Trapezoidal protrusion 26z is not to wheel 6z lateral protrusion.Triangle protrusion 28z extends in the axial outside of trapezoidal protrusion 26z.Triangle protrusion 28z is provided with along about hand of rotation alternately in trapezoidal protrusion 26z both sides.Triangle protrusion 28z is towards the projection of the wheel 6z side direction projection less than blade-like protrusion 22z.Projection towards wheel 6z side direction is less.Front-wheel 10z on being attached to field machine 2z and the protrusion 22z of the wheel 6z among the trailing wheel 12z can only be made of block protrusion 24z.In the case, mud-scraping apparatus 8z is attached on the wheel 6z that protrusion 22z wherein only is made of block protrusion 24z.In some cases, field machine 2z includes auxiliary wheel.In this case, can be attached to mud-scraping apparatus 8z and only comprise block protrusion 24z on the outer surface and do not have on the auxiliary wheel of blade-like protrusion 22z.

Figure 30 shows the planar view of the part of the mud-scraping apparatus 8z among the field machine 2z that is arranged among Figure 29.In Figure 30, vertical direction represent wheel 6z axially.Downside on the paper is represented the outside of wheel 6z.Horizontal direction has been represented the length direction of body 4z.The front side of field machine 2z has been represented in left side on the paper.Long and short dash line CLz represents the line of centers of wheel 6z.Centre line C L z is on the equatorial plane of wheel 6z.

Mud-scraping apparatus 8z comprises support component 30z and as scraping the scraper plate 32z of mud parts.Support component 30z comprises arm 34z that is fixed on the frame 4z and the retaining part 36z that the mating surfaces along wheel 6z is provided with from arm 34z.Length direction along frame 4z extends scraper plate 32z from retaining part 36z.

Arm 34z comprises that the first bar 38z, an end that an end is welded in body 4z are welding the second bar 42z, the 3rd bar 44z through bending machining, the second ring 46z and the 3rd ring 48z of the first ring 40z.The first bar 38z extends along its length towards body 4z rear side.The second bar 42z extends downwards from the first ring 40z.Therefore the 3rd bar 44z also comprises the part that the partial sum of extension vertically extends along its length through bending machining.

Retaining part 36z comprises substrate 50z, bolt 52z and nut 54z.Substrate 50z has elongate structure vertically.Be formed with the bolt hole (not shown) that to insert bolt 52z in the both sides of substrate 50z.In mud-scraping apparatus 8z, the outer surface of the part that the inside face 56z of substrate 50z and the 3rd bar 44z extend along its length is fixed to one another by welding.

Scraper plate 32z is along the side surface setting of axletree 6z.Scraper plate 32z comprises along its length axle 60z that extends to the front portion of body 6z from retaining part 36z and the pawl 62z that extends towards the road surface from the end of axle 60z downwards.Adjustment hole 64z is arranged on the retaining part 36z side of a 60z.Adjustment hole 64z is microscler shape in the axial direction.The end of pawl 62z is a rounding.The shape of scraper plate 32z is suitably determined by the shape of considering protrusion 22z, the size of wheel 6z etc.

In mud-scraping apparatus 8z, axle 60z is arranged on the substrate 50z.Slotting toning knothole 64z of bolt 52z and bolt hole and screw-in are arranged on the nut 54z under the bolt hole.Scraper plate 32z and substrate 50z are fastening by bolt 52z and nut 54z, thereby scraper plate directly is fixed on the retaining part 36z.As above institute is described, and the adjustment hole 64z of scraper plate 32z axially is being microscler.Therefore, can regulate at the axial location of scraper plate 32z.Scraper plate 32z can be fixed on the retaining part 36z by the securing device of non-bolt 52z and nut 54z.

The first ring 40z slides and can be fixed to the desired location of the first bar 38z along the first bar 38z.The first ring 40z slides along the first bar 38z, thereby the position of the length direction of scraper plate 32z can be regulated.The second ring 46z is along second bar 42z slip and can be fixed to a desired location.The second ring 46z slides along the second bar 42z, thereby the position of the length direction of scraper plate 32z can be regulated.The 3rd ring 48z is along the axially extended part slip of the 3rd bar 44z and can be fixed to a desired location.The 3rd ring 48z slides along the axially extended part of the 3rd bar 44z, thereby the position of scraper plate 32z can be regulated on wheel 6z axial direction.The 3rd bar 44z and wheel 6z rotate along equidirectional.Thus, the angle that forms with respect to the length direction of scraper plate 32z also can be regulated.Field machine 2z is provided with via the location of slide lock and regulating mechanism.Therefore, scraper plate 32z can be arranged on optimal location according to the situation in farmland, the diameter of wheel 6z, the width of wheel 6z, the coherent condition of clay 66z etc.

As mentioned above, scraper plate 32z is provided with along wheel 6z side surface.Therefore, in field machine 2z, scraper plate is wiped the earth 66z that adheres to wheel 6z side surface reliably off.Because the earth 66z that adheres on the wheel 6z is wiped off reliably, earth 66z does not pile up on wheel 6z.Because earth 66z does not pile up, earth 66z does not form agglomerate.

Field machine 2z comprises location and regulating mechanism.Therefore, scraper plate 32z can be arranged on a position lower apart from the road surface.The position of the earth 66z that therefore, wipe off is also very low.Because the position of the earth 66z that will wipe off is low, the potential energy of falling the earth 66z on the road surface can be minimized.In field machine 2z, earth 66z can not become piece to fall, and the potential energy of the earth 66z that falls can be minimized.Thereby, can stop seedling etc. to suffer damage.

The examples of material of scraper plate 32z comprises metallic material and synthesizing polymeric material.The example of metallic material comprises steel, aluminum alloy and corrosion-resistant steel.Consider corrosion stability, preferred corrosion-resistant steel.The example of synthesizing polymeric material comprises plastic material and elastomeric material.Consider intensity and commonality, preferred plastic material.The example of plastic material comprises polyvinylchloride, polystyrene, polyethylene, polypropylene, polyacetal and nylon.

Figure 31 is the lateral plan that illustrates according to the part of the field machine 68z of eleventh embodiment of the invention.Field machine 68z comprises body, wheel 70z and mud-scraping apparatus 72z.Field machine 68z is the paddy field cultivation machinery of a four-wheel type, and wherein, wheel 70z is made of front-wheel and trailing wheel.Figure 31 shows wheel 70z and the mud-scraping apparatus 72z that is attached on the wheel 70z.Except the mud-scraping apparatus 72z of field machine 68z, the each several part structure is identical with the structure of the field machine 2z shown in Figure 29.In Figure 31, horizontal direction is represented the length direction of body.The front side of field machine 68z is represented in left side on the paper.Perpendicular to the direction of paper represent wheel 70z axially.

Figure 32 is the planar view that the part of mud-scraping apparatus 72z among Figure 31 is shown.In Figure 32, vertical direction represent wheel 70z axially.Downside on the paper is represented the outside of wheel 70z.Horizontal direction is represented the length direction of body.The front side of field machine 68z is represented in left side on the paper.Long and short dash line CLz represents the line of centers of wheel 70z.Centre line C L z is positioned on the equatorial plane of wheel 70z.

Mud-scraping apparatus 72z comprises support component 74z and scraper plate 76z.Support component 74z comprises arm 78z that is fixed on the frame and the retaining part 80z that the mating surfaces along wheel 70z is provided with from arm 78z.The length direction of scraper plate 76z from retaining part 80z along frame extends.Scraper plate 76z directly is fixed on the retaining part 80z by means of bolt 82z and nut 84z.Except the scraper plate 76z of mud-scraping apparatus 72z, the structure of the mud-scraping apparatus 8z among each several part structure and Figure 30 is identical.

Scraper plate 76z is along the side surface setting of axletree 70z.Scraper plate 76z comprises axle 86z that extends along its length from retaining part 80z and the pawl 88z that extends towards the road surface from the end of axle 86z downwards.Adjustment hole 90z is arranged on the retaining part 80z side of a 86z.Adjustment hole 90z is microscler in the axial direction.The end of pawl 88z is a rounding.In mud-scraping apparatus 72z, the scraper plate 76z that is positioned wheel 70z inboard also comprises the elastomeric element 92z as elastomeric element that is positioned at its end side.

Elastomeric element 92z is positioned under the pawl 88z and is fixed on the front of pawl 88z.Elastomeric element 92z extends laterally vertically from the inboard of wheel 70z.The end of elastomeric element 92z is crossed the equatorial plane of wheel 70z and the end side that arrival is positioned at the scraper plate 76z in the wheel 70z outside.Be positioned at the elastomeric element 92z that the outside of wheel 70z and inboard corresponding scraper plate 76z can comprise that the equatorial plane towards wheel 70z extends.In the case, elastomeric element 92z structure is positioned on the equatorial plane for its end.

Elastomeric element 92z comprises the fixed part 94z that is welded on the pawl 88z and as the coil spring 96z of elastomeric element.Arm 78z comprises location and regulating mechanism.Like this, coil spring 96z is positioned at an optimal location.In wheel 70z, marginal portion 98z is located between spoke 20z and the resilient ring parts.In mud-scraping apparatus 72z, coil spring 96z can butt mode thereon be provided with marginal portion 98z.

Along with the rotation of wheel 70z, marginal portion 98z butt coil spring 96z.When marginal portion 98z butt coil spring 96z, a power was applied on the coil spring 96z.Fixed coil spring 96z by applied force.Marginal portion 98z moves in deflection coil spring 96z.When marginal portion 98z left coil spring 96z, the power that is applied on the coil spring 96z was removed.When the power on being applied to coil spring 96z removed, the shape of coil spring 96z was recovered.In field machine 68z, the deflection of coil spring 96z and shape are recovered to repeat.In the operating process of travelling, coil spring 96z deflection when applying power, and coil spring 96z recovers shape when removing power.Therefore, the butt of marginal portion 98z and coil spring 96z repeats and does not damage ride characteristic.

Marginal portion 98z butt coil spring 96z.Like this, the earth 66z that is attached on the 98z of marginal portion is wiped off.Therefore, in field machine 68z, the side surface from wheel 70z can be attached to inboard earth 66z and wipe off reliably.As mentioned above, scraper plate 76z is along the side surface setting of wheel 70z.Therefore, the earth 66z that is attached on the side surface of wheel 70z also can reliably wipe off.Owing to wiped earth 66z off reliably, can stop the accumulation of earth on wheel 70z.Because earth 66z does not pile up, can not form the agglomerate of earth 66z.In field machine 68z, used location and regulating mechanism, thereby scraper plate 76z can be arranged on the position lower apart from pavement-height.Therefore, earth 66z is wiped off in the lower position of distance pavement-height.Because the height of the earth 66z that will wipe off is low, the potential energy of falling ground-surface earth 66z reduces.In field machine 68z, earth 66z does not become piece to fall, and further, the potential energy of the earth 66z that falls reduces.Therefore, can stop seedling etc. to suffer damage.

The examples of material of coil spring 96z comprises metallic material and synthesizing polymeric material.Consider intensity, preferred metal materials is as the material of coil spring 96z.The example of metallic material comprises steel, aluminum alloy and corrosion-resistant steel.Consider corrosion stability, preferred corrosion-resistant steel.Coil spring 96z can be made of the rod member that elastomeric material forms.In the case, the example of elastomeric material comprises natural rubber, buna-S, butadiene rubber and isoprene rubber.Aspect commonality, natural rubber is preferred.

According to the tenth and the mud-scraping apparatus of the 11 embodiment include the scraper plate that the mud parts are scraped in the conduct of extending along the wheel side surface.Therefore, being attached to the lip-deep earth of wheel side can wipe off reliably.Therefore, earth is not piled up on wheel.Because earth is not piled up on wheel, does not form the earth piece.In the field machine of this mud-scraping apparatus that had attaching, earth can not become piece to fall.Therefore, can stop seedling etc. to be covered, bend or fall down by earth.

Can be attached to various agricultural mechanically according to mud-scraping apparatus of the present invention.

Top description is exemplary, can make multiple change without departing from the scope of the invention.

Claims

1, a kind of mud-scraping apparatus, it comprises: spoil disposal parts, these spoil disposal parts have be used to wipe off the earth that is attached to wheel scrape the mud parts; And a support component that is used to support described spoil disposal parts is characterized in that,

Described spoil disposal parts comprise an elastomeric element that is used for repeating along with wheel revolutions the recovery of deflection and shape,

And shaked off by the vibration of described elastomeric element attached to the described earth of scraping on the mud parts.

2, mud-scraping apparatus as claimed in claim 1, wherein, described elastomeric element is made of a coil spring.

3, mud-scraping apparatus as claimed in claim 1 comprises that also is used to regulate a described location and a regulating mechanism of scraping the mud position component.

4, mud-scraping apparatus as claimed in claim 1 wherein, is provided with described elastomeric element as the described mud parts of scraping.

5, mud-scraping apparatus as claimed in claim 4, wherein, described elastomeric element in axial direction extends from the equatorial plane of described support component to wheel.

6, mud-scraping apparatus as claimed in claim 1, wherein, described spoil disposal parts comprise described elastomeric element and are attached to the described mud parts of scraping of an end of described elastomeric element.

7, a kind of field machine, it comprises a wheel and a mud-scraping apparatus,

Described mud-scraping apparatus comprises spoil disposal parts and a support component that is used to support these spoil disposal parts, described spoil disposal parts have be used to wipe off the earth that is attached on the wheel scrape the mud parts, it is characterized in that,

Described spoil disposal parts comprise an elastomeric element that is used for repeating along with this wheel revolutions the recovery of deflection and shape,

8, field machine as claimed in claim 7, wherein, described elastomeric element in axial direction extends from the equatorial plane of described support component towards wheel,

Described wheel comprises spoke, and

Described spoke is configured to make repeated deflection and the shape recovery along with the rotation of this wheel of this elastomeric element.

9, a kind of device that is used to wipe off the earth on the field machine wheel, it comprises a support component and spoil disposal parts, it is characterized in that this support component extends from the outer peripheral portion of the rotary area except that contact area of the wheel with side direction protrusion of body to being arranged on field machine of field machine; These spoil disposal parts are outstanding to the rotary area of this side direction protrusion from this support component in the rotation of wheel, described spoil disposal parts have one and scrape mud parts and an elastomeric element, this is scraped the mud parts and is used for the rotation leading surface of butt side direction protrusion and wipes the earth that adheres to off, this elastomeric element be used for along with the rotation of side direction protrusion keep this scrape the butt state of mud parts and side direction protrusion and have along side direction protrusion rotation by after get back to elasticity on the direction of initial position

10, the device that is used to wipe off the earth on the field machine wheel as claimed in claim 9, wherein, described support component is provided with regulates the approximated position control apparatus of spoil disposal parts in the position that wheel directly makes progress.

11, the device that is used to wipe off the earth on the field machine wheel as claimed in claim 9, wherein, described support component is provided with the arrangement for adjusting height of regulating the position of spoil disposal parts on the short transverse of distance ground plane.

12, the device that is used to wipe off the earth on the field machine wheel as claimed in claim 9, wherein, described support component is provided with regulates the horizontal position control apparatus of spoil disposal parts in the position that axletree makes progress.

13, the device that is used to wipe off the earth on the field machine wheel as claimed in claim 9, wherein, described support component is provided with the angle regulator that the mud parts are connected to the butt angle on the described side direction protrusion of scraping of regulating described spoil disposal parts.

14, the device that is used to wipe off the earth on the field machine wheel as claimed in claim 9, wherein, the mud parts of scraping of described spoil disposal parts have an end portion, and this end portion on the direction that the rotation leading surface of described side direction protrusion slides at butt and formed round section.

15, the device that is used to wipe off the earth on the field machine wheel as claimed in claim 9, wherein, the mud parts of scraping of described spoil disposal parts have an end portion, this end portion is to be parallel to the angle tilt of a leaning angle (θ), and wherein said leaning angle (θ) is the angle that the rotation leading surface of described side direction protrusion is given prominence to from the side surface of wheel.

16, the device that is used to wipe off the earth on the field machine wheel as claimed in claim 9, wherein, the mud parts of scraping of described spoil disposal parts form L shape hook shape with following structure, that is, making that it impacts the rotation leading surface of described side direction protrusion with an angle near the right angle and prevents is hooked together on this side direction protrusion when the wheel contrarotation.

17, the device that is used to wipe off the earth on the field machine wheel as claimed in claim 9, wherein, the mud parts of scraping of described spoil disposal parts form the convex curve shape with following structure, that is, making that it impacts the rotation leading surface of described side direction protrusion and prevents is hooked together on this side direction protrusion when the wheel contrarotation.

18, the device that is used to wipe off the earth on the field machine wheel as claimed in claim 9, wherein, the mud parts of scraping of described spoil disposal parts form with following structure, that is, and the lateral edge portions butt of a side surface of steered wheel or near the side surface of this wheel.

19, the device that is used to wipe off the earth on the field machine wheel as claimed in claim 9, wherein, the mud parts of scraping of described spoil disposal parts are formed by independent parts and are arranged to elastomeric element and freely are connected to each other and separate.

20, the device that is used to wipe off the earth on the field machine wheel as claimed in claim 19, wherein, described spoil disposal parts are provided with a connecting panel described scraping between mud parts and the described elastomeric element, and be provided with a basic bar in the bottom of this elastomeric element, and this is scraped mud parts and this connecting panel, this connecting panel and this elastomeric element and this elastomeric element and this base bar and fixes by securing device respectively.

21, the device that is used to wipe off the earth on the field machine wheel as claimed in claim 19, wherein, described spoil disposal parts are provided with a connecting panel scraping between mud parts and the elastomeric element, this horizontal position of scraping the mud parts is regulated based on this connecting panel, and regulates corresponding to the width of this wheel in this gap of scraping between mud parts and the wheel.

22, a kind of mud-scraping apparatus that is used for field machine, it comprises that a retaining part and one scrape the mud parts, it is characterized in that, described retaining part is attached to body, this mud-scraping apparatus also comprises a stay that is attached on this retaining part and extends along the length direction of body, the described mud parts of scraping are attached on this stay and extend along wheel side surface on the length direction of body, wherein, described retaining part comprises a cylinder, a damper element and a connecting element that is contained in this cylinder, described stay comprises deflection when stressed and recover the elastomeric element of shape when removing power, and it is interior and fastening by means of this connecting element via this damper element that the part of described elastomeric element is contained in this cylinder, and elastomeric element is fixed on this cylinder

23, a kind of field machine, it comprises body, wheel and mud-scraping apparatus, described mud-scraping apparatus comprises that a retaining part and one scrape the mud parts,

It is characterized in that,

Described wheel is included in front-wheel that only has a block protrusion on its outer surface and the trailing wheel that has the blade-like protrusion on its outer surface,

Described retaining part is attached to described body, described mud-scraping apparatus also comprises a stay that is attached on the described retaining part and extends at the length direction of body, the described mud parts of scraping are attached on the described stay and extend along wheel side surface on the length direction of body, and

Described stay comprises deflection when stressed and recover the elastomeric element of shape when removing power,

24, field machine as claimed in claim 23, wherein, described retaining part comprises a cylinder, a damper element and a connecting element that is contained in this cylinder, and

It is interior and fastening with this connecting element via this damper element that the part of described elastomeric element is contained in this cylinder, and this elastomeric element is fixed on this cylinder.

25, a kind of field machine, it comprises body, wheel and mud-scraping apparatus, described mud-scraping apparatus comprises that a retaining part and one scrape the mud parts,

It is characterized in that,

Described wheel is included in front-wheel and the trailing wheel that only has a block protrusion on the outer surface,

Described retaining part is attached to described body, described mud-scraping apparatus also comprises a stay that is attached on this retaining part and extends along the length direction of body, the described mud parts of scraping are attached on this stay and extend along wheel side surface on the length direction of body, and

26, field machine as claimed in claim 25, wherein, described retaining part comprises a cylinder, a damper element and a connecting element that is contained in this cylinder, and

The part of described elastomeric element is contained in this cylinder and carries out fasteningly via this damper element with this connecting element, and this elastomeric element is fixed on this cylinder.

27, a kind of mud-scraping apparatus, it comprises a support component and spoil disposal parts, it is characterized in that,

Wherein, described support component comprise a first arm that extends along one of them side surface of wheel, one along axletree to second arm that extends from this first arm and the 3rd arm that extends from this second arm along the opposite side surface of this wheel, and

Described spoil disposal parts have one first to be scraped mud parts and one and second scrapes the mud parts from described the 3rd arm side towards what the described equatorial plane extended vertically towards what the equatorial plane of wheel extended from described the first arm side vertically,

Described first scrapes mud parts and second scrapes the deflection and recover its shape when removing this power when the power that applies along the wheel revolutions direction of mud parts, and scrapes the earth that mud parts and second scrape on the mud parts attached to described first and shaked off by vibration.

28, mud-scraping apparatus as claimed in claim 28, wherein, described first scrapes mud parts and second scrapes the mud parts and is made of a coil spring.

29, mud-scraping apparatus as claimed in claim 27 comprises that also regulating described first for one scrapes location and the regulating mechanism that mud parts and second are scraped the mud position component.

30, a kind of field machine, it comprises wheel and mud-scraping apparatus,

Wherein, this mud discharging device comprises a support component and spoil disposal parts,

It is characterized in that,

Described support component comprise a first arm that extends along one of them side surface of wheel, one along axletree to second arm that extends from this first arm and the 3rd arm that extends from this second arm along the opposite side surface of this wheel, and

Described spoil disposal parts have one first to be scraped mud parts and one and second scrapes the mud parts from described the 3rd arm side towards what this equatorial plane extended vertically towards what the equatorial plane of wheel extended from described the first arm side vertically,

31, field machine as claimed in claim 31, wherein, described wheel comprises a spoke, and

Described spoke is configured to pass through by the rotation of this wheel and scrapes mud parts and second described first and scrape a part between the mud parts.

32, a kind of mud-scraping apparatus that is used for field machine, it comprises: retaining part and one scrape the mud parts, it is characterized in that,

Described retaining part is fixed on the field machine body, and the described mud parts of scraping extend along the wheel side surface on this body length direction from this retaining part, and

The described mud parts of scraping directly are fixed on the described retaining part,

The described end side of scraping the mud parts is provided with one and extends vertically and along with the rotation of wheel repeats the elastomeric element that deflection and shape are recovered,

And shaked off by the vibration of described elastomeric element attached to the earth on the described elastomeric element.

33, a kind of field machine, it comprises body, wheel and is attached to mud-scraping apparatus on the wheel, described mud-scraping apparatus comprises that a retaining part and one scrape the mud parts, it is characterized in that,

Described wheel comprises the protrusion that is positioned on its outer surface,

Described protrusion only is made of block protrusion,

Described retaining part will be fixed on the described body, and the described mud parts of scraping extend along side surface of wheel on the length direction of body from this retaining part, and

The described mud parts of scraping directly are fixed on this retaining part,